Tag version 0.8.0.

Fixes #883.

.editorconfig

@@ -7,3 +7,9 @@ end_of_line = lf
 tab_width   = 2
 indent_size = 2
 indent_style = space
+
+[Makefile]
+tab_width   = 8
+indent_size = 8
+indent_style = tab
+

.github/workflows/test.yml

@@ -0,0 +1,75 @@
+---
+name: Tests
+on:
+  push:
+    paths-ignore:
+      - '**.md'
+      - '**.png'
+  pull_request:
+    paths-ignore:
+      - '**.md'
+      - '**.png'
+  schedule:
+    - cron: '29 7 * * 1'
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false
+      matrix:
+        version:
+          - master
+          - 5.9
+          - 5.8.1
+          - 5.8
+          - 5.7.1
+          - 5.7
+          - 5.6.2
+          - 5.6.1
+          - 5.6
+          - 5.5.1
+          - 5.5
+          - 5.4.2
+          - 5.4.1
+          - 5.4
+          - 5.3.1
+          - 5.3
+          - 5.2
+          - 5.1.1
+          - 5.1
+          - 5.0.8
+          - 5.0.7
+          - 5.0.6
+          - 5.0.5
+          - 5.0.4
+          - 5.0.3
+          - 5.0.2
+          - 5.0.1
+          - 5.0.0
+          - 4.3.17
+          - 4.3.16
+          - 4.3.15
+          - 4.3.14
+          - 4.3.13
+          - 4.3.12
+          - 4.3.11
+    container:
+      image: ghcr.io/zsh-users/zsh:${{ matrix.version }}
+    steps:
+      - uses: actions/checkout@v4
+      - run: install_packages bsdmainutils make procps
+      - run: make test
+
+  notify:
+    runs-on: ubuntu-latest
+    needs: test
+    if: failure() && (github.repository_owner == 'zsh-users')
+    steps:
+      -
+        name: Notify IRC
+        uses: Gottox/irc-message-action@v2
+        with:
+          channel: '#zsh-syntax-highlighting'
+          nickname: zsyh-gh-bot
+          message: '${{ github.ref }} failed tests: https://github.com/${{ github.repository }}/actions/runs/${{ github.run_id }}'

.travis.yml

@@ -1,55 +0,0 @@
-language: generic
-sudo: required
-
-env:
-  - ZSH=master
-  - ZSH=5.7.1
-  - ZSH=5.7
-  - ZSH=5.6.2
-  - ZSH=5.6.1
-  - ZSH=5.6
-  - ZSH=5.5.1
-  - ZSH=5.5
-  - ZSH=5.4.2
-  - ZSH=5.4.1
-  - ZSH=5.4
-  - ZSH=5.3.1
-  - ZSH=5.3
-  - ZSH=5.2
-  - ZSH=5.1.1
-  - ZSH=5.1
-  - ZSH=5.0.8
-  - ZSH=5.0.7
-  - ZSH=5.0.6
-  - ZSH=5.0.5
-  - ZSH=5.0.4
-  - ZSH=5.0.3
-  - ZSH=5.0.2
-  - ZSH=5.0.1
-  - ZSH=5.0.0
-  - ZSH=4.3.17
-  - ZSH=4.3.16
-  - ZSH=4.3.15
-  - ZSH=4.3.14
-  - ZSH=4.3.13
-  - ZSH=4.3.12
-  - ZSH=4.3.11
-
-script: docker run -v $PWD:/work -w /work zshusers/zsh:${ZSH} /bin/sh -c 'install_packages make procps && make test'
-
-notifications:
-  webhooks:
-    urls:
-      - https://webhooks.gitter.im/e/367e241cdea60cb2070b
-    on_success: change
-    on_failure: always
-    on_start: never
-  irc:
-    channels:
-      - "chat.freenode.net#zsh-syntax-highlighting"
-    on_success: change
-    on_failure: always
-    on_start: never
-    use_notice: true
-    template:
-      - "%{repository}/%{branch}#%{build_number}: %{message} Changes : %{compare_url} | Build : %{build_url}"

.version

@@ -1 +1 @@
-0.7.0
+0.8.0

HACKING.md

@@ -67,6 +67,22 @@ expected_region_highlight=(
 )
 ```
 
+Memos and commas
+----------------
+
+We append to `region_highlight` as follows:
+
+
+```zsh
+region_highlight+=("$start $end $spec, memo=zsh-syntax-highlighting")
+```
+
+That comma is required to cause zsh 5.8 and older to ignore the memo without
+ignoring the `$spec`.  It's a hack, but given that no further 5.8.x patch
+releases are planned, it's been deemed acceptable.  See issue #418 and the
+cross-referenced issues.
+
+
 Miscellany
 ----------
 
@@ -79,5 +95,5 @@ zstyle ':completion:*:*:*:*:globbed-files' ignored-patterns {'*/',}zsh-syntax-hi
 IRC channel
 -----------
 
-We're on #zsh-syntax-highlighting on freenode.
+We're on #zsh-syntax-highlighting on Libera.Chat.
 

INSTALL.md

@@ -3,31 +3,67 @@ How to install
 
 ### Using packages
 
+First, install the package:
+
 * Arch Linux: [community/zsh-syntax-highlighting][arch-package] / [AUR/zsh-syntax-highlighting-git][AUR-package]
 * Debian: `zsh-syntax-highlighting` package [in `stretch`][debian-package] (or in [OBS repository][obs-repository])
 * Fedora: [zsh-syntax-highlighting package][fedora-package-alt] in Fedora 24+ (or in [OBS repository][obs-repository])
 * FreeBSD: `pkg install zsh-syntax-highlighting` (port name: [`shells/zsh-syntax-highlighting`][freebsd-port])
-* Gentoo: [mv overlay][gentoo-overlay]
-* Mac OS X / Homebrew: [brew install zsh-syntax-highlighting][brew-package]
-* Ubuntu: `zsh-syntax-highlighting` package [in Xenial][ubuntu-package] (or in [OBS repository][obs-repository])
-* RHEL / CentOS / Scientific Linux: `zsh-syntax-highlighting` package in [OBS repository][obs-repository]
+* Gentoo: [app-shells/zsh-syntax-highlighting][gentoo-repository]
+* Mac OS X / Homebrew: `brew install zsh-syntax-highlighting` ([formula][brew-package])
+* NetBSD: `pkg_add zsh-syntax-highlighting` (port name: [`shells/zsh-syntax-highlighting`][netbsd-port])
+* OpenBSD: `pkg_add zsh-syntax-highlighting` (port name: [`shells/zsh-syntax-highlighting`][openbsd-port])
 * openSUSE / SLE: `zsh-syntax-highlighting` package in [OBS repository][obs-repository]
+* RHEL / CentOS / Scientific Linux: `zsh-syntax-highlighting` package in [OBS repository][obs-repository]
+* Ubuntu: `zsh-syntax-highlighting` package [in Xenial][ubuntu-package] (or in [OBS repository][obs-repository])
 * Void Linux: `zsh-syntax-highlighting package` [in XBPS][void-package]
 
 [arch-package]: https://www.archlinux.org/packages/zsh-syntax-highlighting
 [AUR-package]: https://aur.archlinux.org/packages/zsh-syntax-highlighting-git
+[brew-package]: https://github.com/Homebrew/homebrew-core/blob/master/Formula/z/zsh-syntax-highlighting.rb
 [debian-package]: https://packages.debian.org/zsh-syntax-highlighting
-[freebsd-port]: http://www.freshports.org/textproc/zsh-syntax-highlighting/
-[gentoo-overlay]: http://gpo.zugaina.org/app-shells/zsh-syntax-highlighting
-[brew-package]: https://github.com/Homebrew/homebrew-core/blob/master/Formula/zsh-syntax-highlighting.rb
-[ubuntu-package]: https://launchpad.net/ubuntu/+source/zsh-syntax-highlighting
 [fedora-package]: https://apps.fedoraproject.org/packages/zsh-syntax-highlighting
 [fedora-package-alt]: https://bodhi.fedoraproject.org/updates/?packages=zsh-syntax-highlighting
-[obs-repository]: https://software.opensuse.org//download.html?project=shells%3Azsh-users%3Azsh-syntax-highlighting&package=zsh-syntax-highlighting
+[freebsd-port]: https://www.freshports.org/textproc/zsh-syntax-highlighting/
+[gentoo-repository]: https://packages.gentoo.org/packages/app-shells/zsh-syntax-highlighting
+[netbsd-port]: http://cvsweb.netbsd.org/bsdweb.cgi/pkgsrc/shells/zsh-syntax-highlighting/
+[obs-repository]: https://software.opensuse.org/download.html?project=shells%3Azsh-users%3Azsh-syntax-highlighting&package=zsh-syntax-highlighting
+[openbsd-port]: https://cvsweb.openbsd.org/ports/shells/zsh-syntax-highlighting/
+[ubuntu-package]: https://launchpad.net/ubuntu/+source/zsh-syntax-highlighting
 [void-package]: https://github.com/void-linux/void-packages/tree/master/srcpkgs/zsh-syntax-highlighting
 
 See also [repology's cross-distro index](https://repology.org/metapackage/zsh-syntax-highlighting/versions)
 
+Second, enable zsh-syntax-highlighting by sourcing the script. Running this command on the terminal will add the source line to the end of your .zshrc:
+
+* On most Linux distributions (except perhaps NixOS):
+
+    ```zsh
+    echo "source /usr/share/zsh-syntax-highlighting/zsh-syntax-highlighting.zsh" >> ${ZDOTDIR:-$HOME}/.zshrc
+    ```
+
+* NetBSD and OpenBSD:
+
+    ```zsh
+    echo "source /usr/local/share/zsh-syntax-highlighting/zsh-syntax-highlighting.zsh" >> ${ZDOTDIR:-$HOME}/.zshrc
+    ```
+
+* Mac OS X / Homebrew:
+
+    ```zsh
+    echo "source $(brew --prefix)/share/zsh-syntax-highlighting/zsh-syntax-highlighting.zsh" >> ${ZDOTDIR:-$HOME}/.zshrc
+    ```
+
+Then restart zsh (such as by opening a new instance of your terminal emulator).
+
+ Alternatively, add the `source` command manually **at the end** of your `.zshrc`:
+
+* On most Linux distributions (except perhaps NixOS):
+`source /usr/share/zsh-syntax-highlighting/zsh-syntax-highlighting.zsh`
+* NetBSD and OpenBSD:
+`source /usr/local/share/zsh-syntax-highlighting/zsh-syntax-highlighting.zsh`
+
+Then restart zsh.
 
 ### In your ~/.zshrc
 
@@ -71,6 +107,12 @@ This list is incomplete as there are too many
 Add `antigen bundle zsh-users/zsh-syntax-highlighting` as the last bundle in
 your `.zshrc`.
 
+#### [Fig](https://fig.io)
+
+Click the `Install Plugin` button on the [Fig plugin page][fig-plugin].
+
+[fig-plugin]: https://fig.io/plugins/other/zsh-syntax-highlighting
+
 #### [Oh-my-zsh](https://github.com/robbyrussell/oh-my-zsh)
 
 1. Clone this repository in oh-my-zsh's plugins directory:
@@ -98,15 +140,15 @@ Zsh-syntax-highlighting is included with Prezto. See the
 
 Add `zgen load zsh-users/zsh-syntax-highlighting` to the end of your `.zshrc`.
 
+#### [zinit](https://github.com/zdharma-continuum/zinit)
+
+Add `zinit light zsh-users/zsh-syntax-highlighting` to the end of your
+`.zshrc`.
+
 #### [zplug](https://github.com/zplug/zplug)
 
 Add `zplug "zsh-users/zsh-syntax-highlighting", defer:2` to your `.zshrc`.
 
-#### [zplugin](https://github.com/psprint/zplugin)
-
-Add `zplugin load zsh-users/zsh-syntax-highlighting` to the end of your
-`.zshrc`.
-
 
 ### System-wide installation
 

Makefile

@@ -41,7 +41,7 @@ test:
 	for test in highlighters/*; do \
 		if [ -d $$test/test-data ]; then \
 			echo "Running test $${test##*/}"; \
-			$(ZSH) -f tests/test-highlighting.zsh "$${test##*/}"; \
+			env -i QUIET=$$QUIET $${TERM:+"TERM=$$TERM"} $(ZSH) -f tests/test-highlighting.zsh "$${test##*/}"; \
 			: $$(( result |= $$? )); \
 		fi \
 	done; \

README.md

@@ -1,12 +1,12 @@
-zsh-syntax-highlighting [![Build Status][build-status-image]][build-status-travis]
+zsh-syntax-highlighting [![Build Status][build-status-image]][build-status]
 =======================
 
 **[Fish shell][fish]-like syntax highlighting for [Zsh][zsh].**
 
 *Requirements: zsh 4.3.11+.*
 
-[fish]: http://www.fishshell.com/
-[zsh]: http://www.zsh.org/
+[fish]: https://fishshell.com/
+[zsh]: https://www.zsh.org/
 
 This package provides syntax highlighting for the shell zsh.  It enables
 highlighting of commands whilst they are typed at a zsh prompt into an
@@ -27,6 +27,11 @@ Before: [![Screenshot #3.1](images/before3-smaller.png)](images/before3.png)
 <br/>
 After:&nbsp; [![Screenshot #3.2](images/after3-smaller.png)](images/after3.png)
 
+Before: [![Screenshot #4.1](images/before4-smaller.png)](images/before4-smaller.png)
+<br/>
+After:&nbsp; [![Screenshot #4.2](images/after4-smaller.png)](images/after4-smaller.png)
+
+
 
 How to install
 --------------
@@ -39,11 +44,23 @@ FAQ
 
 ### Why must `zsh-syntax-highlighting.zsh` be sourced at the end of the `.zshrc` file?
 
-`zsh-syntax-highlighting.zsh` wraps ZLE widgets.  It must be sourced after all
-custom widgets have been created (i.e., after all `zle -N` calls and after
-running `compinit`).  Widgets created later will work, but will not update the
+zsh-syntax-highlighting works by hooking into the Zsh Line Editor (ZLE) and
+computing syntax highlighting for the command-line buffer as it stands at the
+time z-sy-h's hook is invoked.
+
+In zsh 5.2 and older,
+`zsh-syntax-highlighting.zsh` hooks into ZLE by wrapping ZLE widgets.  It must
+be sourced after all custom widgets have been created (i.e., after all `zle -N`
+calls and after running `compinit`) in order to be able to wrap all of them.
+Widgets created after z-sy-h is sourced will work, but will not update the
 syntax highlighting.
 
+In zsh newer than 5.8 (not including 5.8 itself),
+zsh-syntax-highlighting uses the `add-zle-hook-widget` facility to install
+a `zle-line-pre-redraw` hook.  Hooks are run in order of registration,
+therefore, z-sy-h must be sourced (and register its hook) after anything else
+that adds hooks that modify the command-line buffer.
+
 ### Does syntax highlighting work during incremental history search?
 
 Highlighting the command line during an incremental history search (by default bound to
@@ -56,7 +73,7 @@ enough information to allow computing the highlighting correctly.)
 
 See issues [#288][i288] and [#415][i415] for details.
 
-[zshzle-Character-Highlighting]: http://zsh.sourceforge.net/Doc/Release/Zsh-Line-Editor.html#Character-Highlighting
+[zshzle-Character-Highlighting]: https://zsh.sourceforge.io/Doc/Release/Zsh-Line-Editor.html#Character-Highlighting
 [i288]: https://github.com/zsh-users/zsh-syntax-highlighting/pull/288
 [i415]: https://github.com/zsh-users/zsh-syntax-highlighting/pull/415
 
@@ -76,5 +93,5 @@ Syntax highlighting is done by pluggable highlighter scripts.  See the
 [documentation on highlighters](docs/highlighters.md) for details and
 configuration settings.
 
-[build-status-image]: https://travis-ci.org/zsh-users/zsh-syntax-highlighting.svg?branch=master
-[build-status-travis]: https://travis-ci.org/zsh-users/zsh-syntax-highlighting
+[build-status]: https://github.com/zsh-users/zsh-syntax-highlighting/actions
+[build-status-image]: https://github.com/zsh-users/zsh-syntax-highlighting/workflows/Tests/badge.svg

changelog.md

@@ -1,6 +1,236 @@
-# Changes in version 0.7.0
+# Changes in 0.8.0
 
-**Version 0.7.0 has not been released.  This changelog is a work in progress.**
+This is a stable bugfix and feature release.  Major new features and changes include:
+
+
+## Changes fixed as part of the switch to zle-line-pre-redraw
+
+The changes in this section were fixed by switching to a `zle-line-pre-redraw`-based
+implementation.
+
+Note: The new implementation will only be used on future zsh releases,
+numbered 5.8.1.1 and newer, due to interoperability issues with other plugins
+(issues #418 and #579).  The underlying zsh feature has been available since
+zsh 5.3.
+
+Whilst under development, the new implementation was known as the
+"feature/redrawhook" topic branch.
+
+- Fixed: Highlighting not triggered after popping a buffer from the buffer stack
+  (using the `push-line` widget, default binding: `M-q`)
+  [#40]
+
+- Fixed: Invoking completion when there were no matches removed highlighting
+  [#90, #470]
+
+- Fixed: Two successive deletes followed by a yank only yanked the latest
+  delete, rather than both of them
+  [#150, #151, #160; cf. #183]
+
+- Presumed fixed: Completing `$(xsel)` results in an error message from `xsel`,
+  with pre-2017 versions of `xsel`.  (For 2017 vintage and newer, see the issue
+  for details.)
+  [#154]
+
+- Fixed: When the standard `bracketed-paste-magic` widget is in use, pastes were slow
+  [#295]
+
+- Fixed: No way to prevent a widget from being wrapped
+  [#324]
+
+- Fixed: No highlighting while cycling menu completion
+  [#375]
+
+- Fixed: Does not coexist with the `IGNORE_EOF` option
+  [#377]
+
+- Fixed: The `undefined-key` widget was wrapped
+  [#421]
+
+- Fixed: Does not coexist with the standard `surround` family of widgets
+  [#520]
+
+- Fixed: First completed filename doesn't get `path` highlighting
+  [#632]
+
+
+## Other changes
+
+- Add issue #712 to the previous release's changelog (hereinafter).
+
+- Fix highlighting when using an alias twice inside another alias
+  [#769, #775]
+
+- Remove lint warning for `env` followed by a pipe
+  [#797]
+
+- Recognize `proxychains` as a precommand
+  [#814, #914]
+
+- Honor shwordsplit when expanding parameters
+  [#687, #818]
+
+- Skip highlighting when keys are still pending in more cases
+  [#835]
+
+- Recognize `grc` as a precommand
+
+- Recognize `torsocks` and `torift` as precommands
+  [#898]
+
+- Recognize `cpulimit` as a precommand
+  [#897]
+
+- Recognize `ktrace` as a precommand
+
+
+# Changes in 0.8.0-alpha1-pre-redrawhook
+
+## Notice about an improbable-but-not-impossible forward incompatibility
+
+Everyone can probably skip this section.
+
+The `master` branch of zsh-syntax-highlighting uses a zsh feature that has not
+yet appeared in a zsh release: the `memo=` feature, added to zsh in commit
+zsh-5.8-172-gdd6e702ee (after zsh 5.8, before zsh 5.9).  In the unlikely event
+that this zsh feature should change in an incompatible way before the next
+stable zsh release, set `zsh_highlight__memo_feature=0` in your .zshrc files to
+disable use of the new feature.
+
+z-sy-h dogfoods the new, unreleased zsh feature because that feature was
+added to zsh at z-sy-h's initiative.  The new feature is used in the fix
+to issue #418.
+
+
+## Incompatible changes:
+
+- An unsuccessful completion (a <kbd>⮀ Tab</kbd> press that doesn't change the
+  command line) no longer causes highlighting to be lost.  Visual feedback can
+  alternatively be achieved by setting the `format` zstyle under the `warnings`
+  tag, for example,
+
+        zstyle ':completion:*:warnings' format '%F{red}No matches%f'
+
+    Refer to the [description of the `format` style in `zshcompsys(1)`]
+    [zshcompsys-Standard-Styles-format].
+
+    (#90, part of #245 (feature/redrawhook))
+
+[zshcompsys-Standard-Styles]: https://zsh.sourceforge.io/Doc/Release/Completion-System.html#Standard-Styles
+[zshcompsys-Standard-Styles-format]: https://zsh.sourceforge.io/Doc/Release/Completion-System.html#index-format_002c-completion-style
+  
+
+
+## Other changes:
+
+- Document `$ZSH_HIGHLIGHT_MAXLENGTH`.
+  [#698]
+
+- Optimize highlighting unquoted words (words that are not in single quotes, double quotes, backticks, or dollar-single-quotes)
+  [#730]
+
+- Redirection operators (e.g., `<` and `>`) are now highlighted by default
+  [#646]
+
+- Propertly terminate `noglob` scope in try/always blocks
+  [#577]
+
+- Don't error out when `KSH_ARRAYS` is set in the calling scope
+  [#622, #689]
+
+- Literal semicolons in array assignments (`foo=( bar ; baz )`) are now
+  highlighted as errors.
+  [3ca93f864fb6]
+
+- Command separators in array assignments (`foo=( bar | baz )`) are now
+  highlighted as errors.
+  [#651, 81267ca3130c]
+
+- Support parameter elision in command position (e.g., `$foo ls` where `$foo` is unset or empty)
+  [#667]
+
+- Don't consider the filename in `sudo -e /path/to/file` to be a command position
+  [#678]
+
+- Don't look up absolute directory names in $cdpath
+  [2cc2583f8f12, part of #669]
+
+- Fix `exec 2>&1;` being highlighted as an error.
+  [#676]
+
+- Fix `: $(<*)` being highlighted as globbing.
+  [#582]
+
+- Fix `cat < *` being highlighting as globbing when the `MULTIOS` option is unset.
+  [#583]
+
+- Fix `echo >&2` highlighting the `2` as a filename if a file by that name happened to exist
+  [#694, part of #645]
+
+- Fix `echo >&-` highlighting the `-` as a filename if a file by that name happened to exist
+  [part of #645]
+
+- Fix `echo >&p` highlighting the `p` as a filename if a file by that name happened to exist
+  [part of #645]
+
+- Fix wrong highlighting of unquoted parameter expansions under zsh 5.2 and older
+  [e165f18c758e]
+
+- Highlight global aliases
+  [#700]
+
+- Highlight `: =nosuchcommand' as an error (when the `EQUALS` option hasn't been unset).
+  [#430]
+
+- Highlight reserved word after assignments as errors (e.g., `foo=bar (ls;)`)
+  [#461]
+
+- Correctly highlight `[[ foo && bar || baz ]]`.
+
+- Highlight non-executable files in command position correctly (e.g., `% /etc/passwd`)
+  [#202, #669]
+
+- Highlight directories in command position correctly, including `AUTO_CD` support
+  [#669]
+
+- Recognize `env` as a precommand (e.g., `env FOO=bar ls`)
+
+- Recognize `ionice` as a precommand
+
+- Recognize `strace` as a precommand
+
+- Fix an error message on stderr before every prompt when the `WARN_NESTED_VAR` zsh option is set:
+  `_zsh_highlight_main__precmd_hook:1: array parameter _zsh_highlight_main__command_type_cache set in enclosing scope in function _zsh_highlight_main__precmd_hook`
+  [#727, #731, #732, #733]
+
+- Fix highlighting of alias whose definitions use a simple command terminator
+  (such as `;`, `|`, `&&`) before a newline
+  [#677; had regressed in 0.7.0]
+
+- Highlight arithmetic expansions (e.g., `$(( 42 ))`)
+  [#607 #649 #704]
+
+- Highlight the parentheses of array assignments as reserved words (`foo=( bar )`).
+  The `assign` style remains supported and has precedence.
+  [#585]
+
+- Fix interoperability issue with other plugins that use highlighting.  The fix
+  requires zsh 5.8.0.3 or newer.  (zsh 5.8.0.2-dev from the `master` branch,
+  revision zsh-5.8-172-gdd6e702ee or newer is also fine.)
+  [#418, https://github.com/okapia/zsh-viexchange/issues/1]
+
+- Improve performance of the `brackets` highlighter.
+
+- Fix highlighting of pre-command redirections (e.g., the `$fn` in `<$fn cat`)
+  [#712]
+
+
+# Changes in version 0.7.1
+
+- Remove out-of-date information from the 0.7.0 changelog.
+
+
+# Changes in version 0.7.0
 
 This is a stable bugfix and feature release.  Major new features and changes include:
 
@@ -32,7 +262,7 @@ This is a stable bugfix and feature release.  Major new features and changes inc
 
 - Highlight numeric globs (e.g., `echo /lib<->`)
 
-- Assorted improvement to aliases highlighting
+- Assorted improvements to aliases highlighting
   (e.g.,
    `alias sudo_u='sudo -u'; sudo_u jrandom ls`,
    `alias x=y y=z z=nosuchcommand; x`,
@@ -70,13 +300,7 @@ Known issues include:
   before a newline will incorrectly be highlighted as an error.  See issue #677
   for examples and workarounds.
   [#677]
-
-- Use of a simple parameter expansion (`${foo}` with nothing but a parameter
-  name inside the braces) in command position, when the value of the parameter
-  looks like an assignment (such as after `foo='bar=$(ls)'`), may result in
-  incorrect highlighting and "BUG" messages.  As a workaround, the expansion
-  may be nested (`${${foo}}`).
-  [#670]
+  [UPDATE: Fixed in 0.8.0]
 
 
 # Changes in version 0.6.0
@@ -94,7 +318,7 @@ This is a stable release, featuring bugfixes and minor improvements.
 - The `isearch` and `suffix` [`$zle_highlight` settings][zshzle-Character-Highlighting].
   (79e4d3d12405, 15db71abd0cc, b56ee542d619; requires zsh 5.3 for `$ISEARCHMATCH_ACTIVE` / `$SUFFIX_ACTIVE` support)
 
-[zshzle-Character-Highlighting]: http://zsh.sourceforge.net/Doc/Release/Zsh-Line-Editor.html#Character-Highlighting
+[zshzle-Character-Highlighting]: https://zsh.sourceforge.io/Doc/Release/Zsh-Line-Editor.html#Character-Highlighting
 
 - Possible history expansions in double-quoted strings.
   (76ea9e1df316)
@@ -540,7 +764,7 @@ in this area.
 
 ## Developer-visible changes:
 
-- Test harness converted to [TAP](http://testanything.org/tap-specification.html) format
+- Test harness converted to [TAP](https://testanything.org/tap-specification.html) format
   (d99aa58aaaef, et seq)
 
 - Run each test in a separate subprocess, isolating them from each other

docs/highlighters.md

@@ -3,34 +3,51 @@ zsh-syntax-highlighting / highlighters
 
 Syntax highlighting is done by pluggable highlighters:
 
-* `main` - the base highlighter, and the only one [active by default][1].
-* `brackets` - [matches brackets][2] and parenthesis.
-* `pattern` - matches [user-defined patterns][3].
-* `cursor` - matches [the cursor position][4].
-* `root` - highlights the whole command line [if the current user is root][5].
-* `line` - applied to [the whole command line][6].
+* `main` - the base highlighter, and the only one [active by default][main].
+* `brackets` - [matches brackets][brackets] and parenthesis.
+* `pattern` - matches [user-defined patterns][pattern].
+* `regexp` - matches [user-defined regular expressions][regexp].
+* `cursor` - matches [the cursor position][cursor].
+* `root` - highlights the whole command line [if the current user is root][root].
+* `line` - applied to [the whole command line][line].
 
-[1]: highlighters/main.md
-[2]: highlighters/brackets.md
-[3]: highlighters/pattern.md
-[4]: highlighters/cursor.md
-[5]: highlighters/root.md
-[6]: highlighters/line.md
+[main]: highlighters/main.md
+[brackets]: highlighters/brackets.md
+[pattern]: highlighters/pattern.md
+[regexp]: highlighters/regexp.md
+[cursor]: highlighters/cursor.md
+[root]: highlighters/root.md
+[line]: highlighters/line.md
+
+
+Highlighter-independent settings
+--------------------------------
+
+By default, all command lines are highlighted.  However, it is possible to
+prevent command lines longer than a fixed number of characters from being
+highlighted by setting the variable `${ZSH_HIGHLIGHT_MAXLENGTH}` to the maximum
+length (in characters) of command lines to be highlighter.  This is useful when
+editing very long command lines (for example, with the [`fned`][fned] utility
+function).  Example:
+
+[fned]: https://zsh.sourceforge.io/Doc/Release/User-Contributions.html#index-zed
+
+```zsh
+ZSH_HIGHLIGHT_MAXLENGTH=512
+```
 
 
 How to activate highlighters
 ----------------------------
 
-To activate an highlighter, add it to the `ZSH_HIGHLIGHT_HIGHLIGHTERS` array in
-`~/.zshrc`, for example:
+To activate an highlighter, add it to the `ZSH_HIGHLIGHT_HIGHLIGHTERS` array.
+By default `ZSH_HIGHLIGHT_HIGHLIGHTERS` is `(main)`. For example to activate
+`brackets`, `pattern`, and `cursor` highlighters, in `~/.zshrc` do:
 
 ```zsh
-ZSH_HIGHLIGHT_HIGHLIGHTERS=(main brackets pattern cursor)
+ZSH_HIGHLIGHT_HIGHLIGHTERS+=(brackets pattern cursor)
 ```
 
-By default, `$ZSH_HIGHLIGHT_HIGHLIGHTERS` is unset and only the `main`
-highlighter is active.
-
 
 How to tweak highlighters
 -------------------------
@@ -42,7 +59,7 @@ same as the syntax of "types of highlighting" of the zsh builtin
 `$zle_highlight` array, which is documented in [the `zshzle(1)` manual
 page][zshzle-Character-Highlighting].
 
-[zshzle-Character-Highlighting]: http://zsh.sourceforge.net/Doc/Release/Zsh-Line-Editor.html#Character-Highlighting
+[zshzle-Character-Highlighting]: https://zsh.sourceforge.io/Doc/Release/Zsh-Line-Editor.html#Character-Highlighting
 
 Some highlighters support additional configuration parameters; see each
 highlighter's documentation for details and examples.

docs/highlighters/brackets.md

@@ -28,4 +28,4 @@ The syntax for values is the same as the syntax of "types of highlighting" of
 the zsh builtin `$zle_highlight` array, which is documented in [the `zshzle(1)`
 manual page][zshzle-Character-Highlighting].
 
-[zshzle-Character-Highlighting]: http://zsh.sourceforge.net/Doc/Release/Zsh-Line-Editor.html#Character-Highlighting
+[zshzle-Character-Highlighting]: https://zsh.sourceforge.io/Doc/Release/Zsh-Line-Editor.html#Character-Highlighting

docs/highlighters/cursor.md

@@ -21,4 +21,4 @@ The syntax for values is the same as the syntax of "types of highlighting" of
 the zsh builtin `$zle_highlight` array, which is documented in [the `zshzle(1)`
 manual page][zshzle-Character-Highlighting].
 
-[zshzle-Character-Highlighting]: http://zsh.sourceforge.net/Doc/Release/Zsh-Line-Editor.html#Character-Highlighting
+[zshzle-Character-Highlighting]: https://zsh.sourceforge.io/Doc/Release/Zsh-Line-Editor.html#Character-Highlighting

docs/highlighters/line.md

@@ -21,4 +21,4 @@ The syntax for values is the same as the syntax of "types of highlighting" of
 the zsh builtin `$zle_highlight` array, which is documented in [the `zshzle(1)`
 manual page][zshzle-Character-Highlighting].
 
-[zshzle-Character-Highlighting]: http://zsh.sourceforge.net/Doc/Release/Zsh-Line-Editor.html#Character-Highlighting
+[zshzle-Character-Highlighting]: https://zsh.sourceforge.io/Doc/Release/Zsh-Line-Editor.html#Character-Highlighting

docs/highlighters/main.md

@@ -20,12 +20,14 @@ This highlighter defines the following styles:
 * `reserved-word` - shell reserved words (`if`, `for`)
 * `alias` - aliases
 * `suffix-alias` - suffix aliases (requires zsh 5.1.1 or newer)
+* `global-alias` - global aliases
 * `builtin` - shell builtin commands (`shift`, `pwd`, `zstyle`)
 * `function` - function names
 * `command` - command names
 * `precommand` - precommand modifiers (e.g., `noglob`, `builtin`)
 * `commandseparator` - command separation tokens (`;`, `&&`)
 * `hashed-command` - hashed commands
+* `autodirectory` - a directory name in command position when the `AUTO_CD` option is set
 * `path` - existing filenames
 * `path_pathseparator` - path separators in filenames (`/`); if unset, `path` is used (default)
 * `path_prefix` - prefixes of existing filenames
@@ -40,6 +42,7 @@ This highlighter defines the following styles:
 * `command-substitution-delimiter-quoted` - a quoted command substitution delimiters (`"$(` and `)"`)
 * `process-substitution` - process substitutions (`<(echo foo)`)
 * `process-substitution-delimiter` - process substitution delimiters (`<(` and `)`)
+* `arithmetic-expansion` - arithmetic expansion `$(( 42 ))`)
 * `single-hyphen-option` - single-hyphen options (`-o`)
 * `double-hyphen-option` - double-hyphen options (`--option`)
 * `back-quoted-argument` - backtick command substitution (`` `foo` ``)
@@ -58,7 +61,9 @@ This highlighter defines the following styles:
 * `assign` - parameter assignments (`x=foo` and `x=( )`)
 * `redirection` - redirection operators (`<`, `>`, etc)
 * `comment` - comments, when `setopt INTERACTIVE_COMMENTS` is in effect (`echo # foo`)
-* `named-fd` - named file descriptor (`echo foo {fd}>&2`)
+* `comment` - elided parameters in command position (`$x ls` when `$x` is unset or empty)
+* `named-fd` - named file descriptor (the `fd` in `echo foo {fd}>&2`)
+* `numeric-fd` - numeric file descriptor (the `2` in `echo foo {fd}>&2`)
 * `arg0` - a command word other than one of those enumerated above (other than a command, precommand, alias, function, or shell builtin command).
 * `default` - everything else
 
@@ -111,6 +116,6 @@ of that (new) kind will be highlighted by the style `arg0_$kind`,
 where `$kind` is the output of `type -w` on the new kind of command word.  If that
 style is not defined, then the style `arg0` will be used instead.
 
-[zshmisc-Simple-Commands-And-Pipelines]: http://zsh.sourceforge.net/Doc/Release/Shell-Grammar.html#Simple-Commands-_0026-Pipelines
+[zshmisc-Simple-Commands-And-Pipelines]: https://zsh.sourceforge.io/Doc/Release/Shell-Grammar.html#Simple-Commands-_0026-Pipelines
 
-[zshzle-Character-Highlighting]: http://zsh.sourceforge.net/Doc/Release/Zsh-Line-Editor.html#Character-Highlighting
+[zshzle-Character-Highlighting]: https://zsh.sourceforge.io/Doc/Release/Zsh-Line-Editor.html#Character-Highlighting

docs/highlighters/pattern.md

@@ -21,4 +21,4 @@ The syntax for values is the same as the syntax of "types of highlighting" of
 the zsh builtin `$zle_highlight` array, which is documented in [the `zshzle(1)`
 manual page][zshzle-Character-Highlighting].
 
-[zshzle-Character-Highlighting]: http://zsh.sourceforge.net/Doc/Release/Zsh-Line-Editor.html#Character-Highlighting
+[zshzle-Character-Highlighting]: https://zsh.sourceforge.io/Doc/Release/Zsh-Line-Editor.html#Character-Highlighting

docs/highlighters/regexp.md

@@ -11,12 +11,45 @@ To use this highlighter, associate regular expressions with styles in the
 `ZSH_HIGHLIGHT_REGEXP` associative array, for example in `~/.zshrc`:
 
 ```zsh
-typeset -A ZSH_HIGHLIGHT_PATTERNS
+typeset -A ZSH_HIGHLIGHT_REGEXP
+ZSH_HIGHLIGHT_REGEXP+=('^rm .*' fg=red,bold)
+```
+
+This will highlight lines that start with a call to the `rm` command.
+
+The regular expressions flavour used is [PCRE][pcresyntax] when the
+`RE_MATCH_PCRE` option is set and POSIX Extended Regular Expressions (ERE),
+as implemented by the platform's C library, otherwise.  For details on the
+latter, see [the `zsh/regex` module's documentation][MAN_ZSH_REGEX] and the
+`regcomp(3)` and `re_format(7)` manual pages on your system.
+
+For instance, to highlight `sudo` only as a complete word, i.e., `sudo cmd`,
+but not `sudoedit`, one might use:
+
+* When the `RE_MATCH_PCRE` is set:
+
+    ```zsh
+    typeset -A ZSH_HIGHLIGHT_REGEXP
     ZSH_HIGHLIGHT_REGEXP+=('\bsudo\b' fg=123,bold)
     ```
 
-This will highlight "sudo" only as a complete word, i.e., "sudo cmd", but not
-"sudoedit"
+* When the `RE_MATCH_PCRE` is unset, on platforms with GNU `libc` (e.g., many GNU/Linux distributions):
+
+    ```zsh
+    typeset -A ZSH_HIGHLIGHT_REGEXP
+    ZSH_HIGHLIGHT_REGEXP+=('\<sudo\>' fg=123,bold)
+    ```
+
+* When the `RE_MATCH_PCRE` is unset, on BSD-based platforms (e.g., macOS):
+
+    ```zsh
+    typeset -A ZSH_HIGHLIGHT_REGEXP
+    ZSH_HIGHLIGHT_REGEXP+=('[[:<:]]sudo[[:>:]]' fg=123,bold)
+    ```
+
+Note, however, that PCRE and POSIX ERE have a large common subset:
+for instance, the regular expressions `[abc]`, `a*`, and `(a|b)` have the same
+meaning in both flavours.
 
 The syntax for values is the same as the syntax of "types of highlighting" of
 the zsh builtin `$zle_highlight` array, which is documented in [the `zshzle(1)`
@@ -25,6 +58,8 @@ manual page][zshzle-Character-Highlighting].
 See also: [regular expressions tutorial][perlretut], zsh regexp operator `=~`
 in [the `zshmisc(1)` manual page][zshmisc-Conditional-Expressions]
 
-[zshzle-Character-Highlighting]: http://zsh.sourceforge.net/Doc/Release/Zsh-Line-Editor.html#Character-Highlighting
-[perlretut]: http://perldoc.perl.org/perlretut.html
-[zshmisc-Conditional-Expressions]: http://zsh.sourceforge.net/Doc/Release/Conditional-Expressions.html#Conditional-Expressions
+[zshzle-Character-Highlighting]: https://zsh.sourceforge.io/Doc/Release/Zsh-Line-Editor.html#Character-Highlighting
+[perlretut]: https://perldoc.perl.org/perlretut
+[zshmisc-Conditional-Expressions]: https://zsh.sourceforge.io/Doc/Release/Conditional-Expressions.html#Conditional-Expressions
+[MAN_ZSH_REGEX]: https://zsh.sourceforge.io/Doc/Release/Zsh-Modules.html#The-zsh_002fregex-Module
+[pcresyntax]: https://www.pcre.org/original/doc/html/pcresyntax.html

docs/highlighters/root.md

@@ -22,4 +22,4 @@ The syntax for values is the same as the syntax of "types of highlighting" of
 the zsh builtin `$zle_highlight` array, which is documented in [the `zshzle(1)`
 manual page][zshzle-Character-Highlighting].
 
-[zshzle-Character-Highlighting]: http://zsh.sourceforge.net/Doc/Release/Zsh-Line-Editor.html#Character-Highlighting
+[zshzle-Character-Highlighting]: https://zsh.sourceforge.io/Doc/Release/Zsh-Line-Editor.html#Character-Highlighting

highlighters/brackets/brackets-highlighter.zsh

@@ -51,8 +51,9 @@ _zsh_highlight_highlighter_brackets_paint()
   local -A levelpos lastoflevel matching
 
   # Find all brackets and remember which one is matching
-  for (( pos = 1; pos <= buflen; pos++ )) ; do
-    char=$BUFFER[pos]
+  pos=0
+  for char in ${(s..)BUFFER} ; do
+    (( ++pos ))
     case $char in
       ["([{"])
         levelpos[$pos]=$((++level))

highlighters/main/main-highlighter.zsh

@@ -33,8 +33,10 @@
 : ${ZSH_HIGHLIGHT_STYLES[unknown-token]:=fg=red,bold}
 : ${ZSH_HIGHLIGHT_STYLES[reserved-word]:=fg=yellow}
 : ${ZSH_HIGHLIGHT_STYLES[suffix-alias]:=fg=green,underline}
+: ${ZSH_HIGHLIGHT_STYLES[global-alias]:=fg=cyan}
 : ${ZSH_HIGHLIGHT_STYLES[precommand]:=fg=green,underline}
 : ${ZSH_HIGHLIGHT_STYLES[commandseparator]:=none}
+: ${ZSH_HIGHLIGHT_STYLES[autodirectory]:=fg=green,underline}
 : ${ZSH_HIGHLIGHT_STYLES[path]:=underline}
 : ${ZSH_HIGHLIGHT_STYLES[path_pathseparator]:=}
 : ${ZSH_HIGHLIGHT_STYLES[path_prefix_pathseparator]:=}
@@ -56,9 +58,10 @@
 : ${ZSH_HIGHLIGHT_STYLES[back-double-quoted-argument]:=fg=cyan}
 : ${ZSH_HIGHLIGHT_STYLES[back-dollar-quoted-argument]:=fg=cyan}
 : ${ZSH_HIGHLIGHT_STYLES[assign]:=none}
-: ${ZSH_HIGHLIGHT_STYLES[redirection]:=none}
+: ${ZSH_HIGHLIGHT_STYLES[redirection]:=fg=yellow}
 : ${ZSH_HIGHLIGHT_STYLES[comment]:=fg=black,bold}
 : ${ZSH_HIGHLIGHT_STYLES[named-fd]:=none}
+: ${ZSH_HIGHLIGHT_STYLES[numeric-fd]:=none}
 : ${ZSH_HIGHLIGHT_STYLES[arg0]:=fg=green}
 
 # Whether the highlighter should be called or not.
@@ -73,7 +76,7 @@ _zsh_highlight_main_add_region_highlight() {
   integer start=$1 end=$2
   shift 2
 
-  if (( in_alias )); then
+  if (( $#in_alias )); then
     [[ $1 == unknown-token ]] && alias_style=unknown-token
     return
   fi
@@ -105,13 +108,19 @@ _zsh_highlight_main_calculate_fallback() {
   local -A fallback_of; fallback_of=(
       alias arg0
       suffix-alias arg0
+      global-alias dollar-double-quoted-argument
       builtin arg0
       function arg0
       command arg0
       precommand arg0
       hashed-command arg0
+      autodirectory arg0
       arg0_\* arg0
 
+      # TODO: Maybe these? —
+      #   named-fd file-descriptor
+      #   numeric-fd file-descriptor
+
       path_prefix path
       # The path separator fallback won't ever be used, due to the optimisation
       # in _zsh_highlight_main_highlighter_highlight_path_separators().
@@ -173,7 +182,9 @@ _zsh_highlight_main__type() {
     if (( $+aliases[(e)$1] )); then
       may_cache=0
     fi
-    if (( $+aliases[(e)$1] )) && (( aliases_allowed )); then
+    if (( ${+galiases[(e)$1]} )) && (( aliases_allowed )); then
+      REPLY='global alias'
+    elif (( $+aliases[(e)$1] )) && (( aliases_allowed )); then
       REPLY=alias
     elif [[ $1 == *.* && -n ${1%.*} ]] && (( $+saliases[(e)${1##*.}] )); then
       REPLY='suffix alias'
@@ -262,6 +273,18 @@ _zsh_highlight_main__resolve_alias() {
   fi
 }
 
+# Return true iff $1 is a global alias
+_zsh_highlight_main__is_global_alias() {
+  if zmodload -e zsh/parameter; then
+    (( ${+galiases[$arg]} ))
+  elif [[ $arg == '='* ]]; then
+    # avoid running into «alias -L '=foo'» erroring out with 'bad assignment'
+    return 1
+  else
+    alias -L -g -- "$1" >/dev/null
+  fi
+}
+
 # Check that the top of $braces_stack has the expected value.  If it does, set
 # the style according to $2; otherwise, set style=unknown-token.
 #
@@ -306,9 +329,13 @@ _zsh_highlight_highlighter_main_paint()
   # $flags_sans_argument is a set of letters, corresponding to the option letters
   # that wouldn't be followed by a colon in a getopts specification.
   local flags_sans_argument
-  # $precommand_options maps precommand name to values of $flags_with_argument and
-  # $flags_sans_argument for that precommand, joined by a colon.  (The value is NOT
-  # a getopt(3) spec, although it resembles one.)
+  # $flags_solo is a set of letters, corresponding to option letters that, if
+  # present, mean the precommand will not be acting as a precommand, i.e., will
+  # not be followed by a :start: word.
+  local flags_solo
+  # $precommand_options maps precommand name to values of $flags_with_argument,
+  # $flags_sans_argument, and flags_solo for that precommand, joined by a
+  # colon.  (The value is NOT a getopt(3) spec, although it resembles one.)
   #
   # Currently, setting $flags_sans_argument is only important for commands that
   # have a non-empty $flags_with_argument; see test-data/precommand4.zsh.
@@ -322,30 +349,35 @@ _zsh_highlight_highlighter_main_paint()
     'noglob' ''
     # 'time' and 'nocorrect' shouldn't be added here; they're reserved words, not precommands.
 
+    # miscellaneous commands
     'doas' aCu:Lns # as of OpenBSD's doas(1) dated September 4, 2016
     'nice' n: # as of current POSIX spec
     'pkexec' '' # doesn't take short options; immune to #121 because it's usually not passed --option flags
-    # Argumentless flags that can't be followed by a command: -e -h -K -k -V -v
-    'sudo' Cgprtu:AEHPSbilns # as of sudo 1.8.21p2
+    # Not listed: -h, which has two different meanings.
+    'sudo' Cgprtu:AEHPSbilns:eKkVv # as of sudo 1.8.21p2
     'stdbuf' ioe:
     'eatmydata' ''
     'catchsegv' ''
     'nohup' ''
     'setsid' :wc
-    # As of OpenSSH 8.1p1; -k is deliberately left out since it may not be followed by a command
-    'ssh-agent' aEPt:csDd
-    # suckless-tools v44
-    # Argumentless flags that can't be followed by a command: -v
-    'tabbed' gnprtTuU:cdfhs
-
-    # moreutils 0.62-1
-    'chronic' :ev
-    'ifne' :n
-
+    'env' u:i
+    'ionice' cn:t:pPu # util-linux 2.33.1-0.1
+    'strace' IbeaosXPpEuOS:ACdfhikqrtTvVxyDc # strace 4.26-0.2
+    'proxychains' f:q # proxychains 4.4.0
+    'torsocks' idq:upaP # Torsocks 2.3.0
+    'torify' idq:upaP # Torsocks 2.3.0
+    'ssh-agent' aEPt:csDd:k # As of OpenSSH 8.1p1
+    'tabbed' gnprtTuU:cdfhs:v # suckless-tools v44
+    'chronic' :ev # moreutils 0.62-1
+    'ifne' :n # moreutils 0.62-1
+    'grc' :se # grc - a "generic colouriser" (that's their spelling, not mine)
+    'cpulimit' elp:ivz # cpulimit 0.2
+    'ktrace' fgpt:aBCcdiT
   )
   # Commands that would need to skip one positional argument:
   #    flock
   #    ssh
+  #    _wanted (skip two)
 
   if [[ $zsyh_user_options[ignorebraces] == on || ${zsyh_user_options[ignoreclosebraces]:-off} == on ]]; then
     local right_brace_is_recognised_everywhere=false
@@ -359,6 +391,7 @@ _zsh_highlight_highlighter_main_paint()
 
   ZSH_HIGHLIGHT_TOKENS_COMMANDSEPARATOR=(
     '|' '||' ';' '&' '&&'
+    $'\n' # ${(z)} returns ';' but we convert it to $'\n'
     '|&'
     '&!' '&|'
     # ### 'case' syntax, but followed by a pattern, not by a command
@@ -402,6 +435,63 @@ _zsh_highlight_highlighter_main_paint()
   done
 }
 
+# Try to expand $1, if it's possible to do so safely.
+# 
+# Uses two parameters from the caller: $parameter_name_pattern and $res.
+#
+# If expansion was done, set $reply to the expansion and return true.
+# Otherwise, return false.
+_zsh_highlight_main_highlighter__try_expand_parameter()
+{
+  local arg="$1"
+  unset reply
+  {
+    # ### For now, expand just '$foo' or '${foo}', possibly with braces, but with
+    # ### no other features of the parameter expansion syntax.  (No ${(x)foo},
+    # ### no ${foo[x]}, no ${foo:-x}.)
+    {
+      local -a match mbegin mend
+      local MATCH; integer MBEGIN MEND
+      local parameter_name
+      local -a words
+      if [[ $arg[1] != '$' ]]; then
+        return 1
+      fi
+      if [[ ${arg[2]} == '{' ]] && [[ ${arg[-1]} == '}' ]]; then
+        parameter_name=${${arg:2}%?}
+      else
+        parameter_name=${arg:1}
+      fi
+      if [[ $res == none ]] && 
+         [[ ${parameter_name} =~ ^${~parameter_name_pattern}$ ]] &&
+         [[ ${(tP)MATCH} != *special* ]]
+      then
+        # Set $arg and update $res.
+        case ${(tP)MATCH} in
+          (*array*|*assoc*)
+            words=( ${(P)MATCH} )
+            ;;
+          ("")
+            # not set
+            words=( )
+            ;;
+          (*)
+            # scalar, presumably
+            if [[ $zsyh_user_options[shwordsplit] == on ]]; then
+              words=( ${(P)=MATCH} )
+            else
+              words=( ${(P)MATCH} )
+            fi
+            ;;
+        esac
+        reply=( "${words[@]}" )
+      else
+        return 1
+      fi
+    }
+  }
+}
+
 # $1 is the offset of $4 from the parent buffer. Added to the returned highlights.
 # $2 is the initial braces_stack (for a closing paren).
 # $3 is 1 if $4 contains the end of $BUFFER, else 0.
@@ -413,17 +503,18 @@ _zsh_highlight_highlighter_main_paint()
 _zsh_highlight_main_highlighter_highlight_list()
 {
   integer start_pos end_pos=0 buf_offset=$1 has_end=$3
-  # alias_style is the style to apply to an alias once in_alias=0
+  # alias_style is the style to apply to an alias once $#in_alias == 0
   #     Usually 'alias' but set to 'unknown-token' if any word expanded from
   #     the alias would be highlighted as unknown-token
   # param_style is analogous for parameter expansions
-  local alias_style param_style arg buf=$4 highlight_glob=true style
+  local alias_style param_style last_arg arg buf=$4 highlight_glob=true saw_assignment=false style
   local in_array_assignment=false # true between 'a=(' and the matching ')'
-  # in_alias is equal to the number of shifts needed until arg=args[1] pops an
-  #     arg from BUFFER and not added by an alias.
+  # in_alias is an array of integers with each element equal to the number
+  #     of shifts needed until arg=args[1] pops an arg from the next level up
+  #     alias or from BUFFER.
   # in_param is analogous for parameter expansions
-  integer in_alias=0 in_param=0 len=$#buf
-  local -a match mbegin mend list_highlights
+  integer in_param=0 len=$#buf
+  local -a in_alias match mbegin mend list_highlights
   # seen_alias is a map of aliases already seen to avoid loops like alias a=b b=a
   local -A seen_alias
   # Pattern for parameter names
@@ -434,7 +525,7 @@ _zsh_highlight_main_highlighter_highlight_list()
   # "Q" for square
   # "Y" for curly
   # "T" for [[ ]]
-  # "S" for $( )
+  # "S" for $( ), =( ), <( ), >( )
   # "D" for do/done
   # "$" for 'end' (matches 'foreach' always; also used with cshjunkiequotes in repeat/while)
   # "?" for 'if'/'fi'; also checked by 'elif'/'else'
@@ -452,6 +543,9 @@ _zsh_highlight_main_highlighter_highlight_list()
   # - :sudo_arg:   The argument to a precommand's leading-dash option,
   #                when given as a separate word; i.e., "foo" in "-u foo" (two
   #                words) but not in "-ufoo" (one word).
+  #    Note:       :sudo_opt: and :sudo_arg: are used for any precommand
+  #                declared in ${precommand_options}, not just for sudo(8).
+  #                The naming is historical.
   # - :regular:    "Not a command word", and command delimiters are permitted.
   #                Mainly used to detect premature termination of commands.
   # - :always:     The word 'always' in the «{ foo } always { bar }» syntax.
@@ -480,6 +574,13 @@ _zsh_highlight_main_highlighter_highlight_list()
   # $in_redirection.  The value of $next_word from the iteration that processed
   # the operator is discarded.
   #
+  # $in_redirection is currently used for:
+  # - comments
+  # - aliases
+  # - redirections
+  # - parameter elision in command position
+  # - 'repeat' loops
+  #
   local this_word next_word=':start::start_of_pipeline:'
   integer in_redirection
   # Processing buffer
@@ -490,15 +591,34 @@ _zsh_highlight_main_highlighter_highlight_list()
   else
     args=(${(z)buf})
   fi
+
+  # Special case: $(<*) isn't globbing.
+  if [[ $braces_stack == 'S' ]] && (( $+args[3] && ! $+args[4] )) && [[ $args[3] == $'\x29' ]] &&
+     [[ $args[1] == *'<'* ]] && _zsh_highlight_main__is_redirection $args[1]; then
+    highlight_glob=false
+  fi
+
   while (( $#args )); do
+    last_arg=$arg
     arg=$args[1]
     shift args
-    if (( in_alias )); then
-      (( in_alias-- ))
-      if (( in_alias == 0 )); then
+    if (( $#in_alias )); then
+      (( in_alias[1]-- ))
+      # Remove leading 0 entries
+      in_alias=($in_alias[$in_alias[(i)<1->],-1])
+      if (( $#in_alias == 0 )); then
         seen_alias=()
         # start_pos and end_pos are of the alias (previous $arg) here
         _zsh_highlight_main_add_region_highlight $start_pos $end_pos $alias_style
+      else
+        # We can't unset keys that contain special characters (] \ and some others).
+        # More details: https://www.zsh.org/workers/43269
+        (){
+          local alias_name
+          for alias_name in ${(k)seen_alias[(R)<$#in_alias->]}; do
+            seen_alias=("${(@kv)seen_alias[(I)^$alias_name]}")
+          done
+        }
       fi
     fi
     if (( in_param )); then
@@ -514,7 +634,7 @@ _zsh_highlight_main_highlighter_highlight_list()
     if (( in_redirection == 0 )); then
       this_word=$next_word
       next_word=':regular:'
-    else
+    elif (( !in_param )); then
       # Stall $next_word.
       (( --in_redirection ))
     fi
@@ -524,6 +644,7 @@ _zsh_highlight_main_highlighter_highlight_list()
     #   $style               how to highlight $arg
     #   $in_array_assignment boolean flag for "between '(' and ')' of array assignment"
     #   $highlight_glob      boolean flag for "'noglob' is in effect"
+    #   $saw_assignment      boolean flag for "was preceded by an assignment"
     #
     style=unknown-token
     if [[ $this_word == *':start:'* ]]; then
@@ -533,14 +654,19 @@ _zsh_highlight_main_highlighter_highlight_list()
       fi
     fi
 
-    if (( in_alias == 0 && in_param == 0 )); then
+    if (( $#in_alias == 0 && in_param == 0 )); then
       # Compute the new $start_pos and $end_pos, skipping over whitespace in $buf.
-      [[ "$proc_buf" = (#b)(#s)(([ $'\t']|\\$'\n')#)* ]]
+      [[ "$proc_buf" = (#b)(#s)(''([ $'\t']|[\\]$'\n')#)(?|)* ]]
       # The first, outer parenthesis
       integer offset="${#match[1]}"
       (( start_pos = end_pos + offset ))
       (( end_pos = start_pos + $#arg ))
 
+      # The zsh lexer considers ';' and newline to be the same token, so
+      # ${(z)} converts all newlines to semicolons. Convert them back here to
+      # make later processing simpler.
+      [[ $arg == ';' && ${match[3]} == $'\n' ]] && arg=$'\n'
+
       # Compute the new $proc_buf. We advance it
       # (chop off characters from the beginning)
       # beyond what end_pos points to, by skipping
@@ -584,11 +710,10 @@ _zsh_highlight_main_highlighter_highlight_list()
       if [[ $res == "alias" ]]; then
         # Mark insane aliases as unknown-token (cf. #263).
         if [[ $arg == ?*=* ]]; then
-          (( in_alias == 0 )) && in_alias=1
           _zsh_highlight_main_add_region_highlight $start_pos $end_pos unknown-token
           continue
         fi
-        seen_alias[$arg]=1
+        seen_alias[$arg]=$#in_alias
         _zsh_highlight_main__resolve_alias $arg
         local -a alias_args
         # Elision is desired in case alias x=''
@@ -598,15 +723,15 @@ _zsh_highlight_main_highlighter_highlight_list()
           alias_args=(${(z)REPLY})
         fi
         args=( $alias_args $args )
-        if (( in_alias == 0 )); then
+        if (( $#in_alias == 0 )); then
           alias_style=alias
-          # Add one because we will in_alias-- on the next loop iteration so
-          # this iteration should be considered in in_alias as well
-          (( in_alias += $#alias_args + 1 ))
         else
-          # This arg is already included in the count, so no need to + 1.
-          (( in_alias += $#alias_args ))
+          # Transfer the count of this arg to the new element about to be appended.
+          (( in_alias[1]-- ))
         fi
+        # Add one because we will in_alias[1]-- on the next loop iteration so
+        # this iteration should be considered in in_alias as well
+        in_alias=( $(($#alias_args + 1)) $in_alias )
         (( in_redirection++ )) # Stall this arg
         continue
       else
@@ -619,7 +744,7 @@ _zsh_highlight_main_highlighter_highlight_list()
     # Analyse the current word.
     if _zsh_highlight_main__is_redirection $arg ; then
       if (( in_redirection == 1 )); then
-        # The condition excludes the case that BUFFER='{foo}>&2' and we're on the '>&'.
+        # Two consecutive redirection operators is an error.
         _zsh_highlight_main_add_region_highlight $start_pos $end_pos unknown-token
       else
         in_redirection=2
@@ -634,38 +759,19 @@ _zsh_highlight_main_highlighter_highlight_list()
     fi
 
     # Expand parameters.
-    #
-    # ### For now, expand just '$foo' or '${foo}', possibly with braces, but with
-    # ### no other features of the parameter expansion syntax.  (No ${(x)foo},
-    # ### no ${foo[x]}, no ${foo:-x}.)
-    () {
+    if (( ! in_param )) && _zsh_highlight_main_highlighter__try_expand_parameter "$arg"; then
       # That's not entirely correct --- if the parameter's value happens to be a reserved
       # word, the parameter expansion will be highlighted as a reserved word --- but that
       # incorrectness is outweighed by the usability improvement of permitting the use of
       # parameters that refer to commands, functions, and builtins.
-      local -a match mbegin mend
-      local MATCH; integer MBEGIN MEND
-      local parameter_name
-      local -a words
-      if [[ $arg[1] == '$' ]] && [[ ${arg[2]} == '{' ]] && [[ ${arg[-1]} == '}' ]]; then
-        parameter_name=${${arg:2}%?}
-      elif [[ $arg[1] == '$' ]]; then
-        parameter_name=${arg:1}
-      fi
-      if [[ $res == none ]] && zmodload -e zsh/parameter &&
-         [[ ${parameter_name} =~ ^${~parameter_name_pattern}$ ]] &&
-         (( ${+parameters[(e)${MATCH}]} )) && [[ ${parameters[(e)$MATCH]} != *special* ]]
-         then
-        # Set $arg.
-        case ${(tP)MATCH} in
-          (*array*|*assoc*)
-            words=( ${(P)MATCH} )
-            ;;
-          (*)
-            # scalar, presumably
-            words=( ${(P)MATCH} )
-            ;;
-        esac
+      () {
+        local -a words; words=( "${reply[@]}" )
+        if (( $#words == 0 )) && (( ! in_redirection )); then
+          # Parameter elision is happening
+          (( ++in_redirection ))
+          _zsh_highlight_main_add_region_highlight $start_pos $end_pos comment
+          continue
+        else
           (( in_param = 1 + $#words ))
           args=( $words $args )
           arg=$args[1]
@@ -673,19 +779,30 @@ _zsh_highlight_main_highlighter_highlight_list()
           res=$REPLY
         fi
       }
+    fi
 
     # Parse the sudo command line
     if (( ! in_redirection )); then
       if [[ $this_word == *':sudo_opt:'* ]]; then
         if [[ -n $flags_with_argument ]] &&
-           { [[ -n $flags_sans_argument ]] && [[ $arg == '-'[$flags_sans_argument]#[$flags_with_argument] ]] ||
-             [[ $arg == '-'[$flags_with_argument] ]] }; then
+           { 
+             # Trenary
+             if [[ -n $flags_sans_argument ]]
+             then [[ $arg == '-'[$flags_sans_argument]#[$flags_with_argument] ]]
+             else [[ $arg == '-'[$flags_with_argument] ]]
+             fi
+           } then
           # Flag that requires an argument
           this_word=${this_word//:start:/}
           next_word=':sudo_arg:'
         elif [[ -n $flags_with_argument ]] &&
-             { [[ -n $flags_sans_argument ]] && [[ $arg == '-'[$flags_sans_argument]#[$flags_with_argument]* ]] ||
-               [[ $arg == '-'[$flags_with_argument]* ]] }; then
+             {
+               # Trenary
+               if [[ -n $flags_sans_argument ]]
+               then [[ $arg == '-'[$flags_sans_argument]#[$flags_with_argument]* ]]
+               else [[ $arg == '-'[$flags_with_argument]* ]]
+               fi
+             } then
           # Argument attached in the same word
           this_word=${this_word//:start:/}
           next_word+=':start:'
@@ -696,6 +813,17 @@ _zsh_highlight_main_highlighter_highlight_list()
           this_word=':sudo_opt:'
           next_word+=':start:'
           next_word+=':sudo_opt:'
+        elif [[ -n $flags_solo ]] && 
+             {
+               # Trenary
+               if [[ -n $flags_sans_argument ]]
+               then [[ $arg == '-'[$flags_sans_argument]#[$flags_solo]* ]]
+               else [[ $arg == '-'[$flags_solo]* ]]
+               fi
+             } then
+          # Solo flags
+          this_word=':sudo_opt:'
+          next_word=':regular:' # no :start:, nor :sudo_opt: since we don't know whether the solo flag takes an argument or not
         elif [[ $arg == '-'* ]]; then
           # Unknown flag.  We don't know whether it takes an argument or not,
           # so modify $next_word as we do for flags that require no argument.
@@ -720,42 +848,91 @@ _zsh_highlight_main_highlighter_highlight_list()
     fi
 
     # The Great Fork: is this a command word?  Is this a non-command word?
-   if [[ -n ${(M)ZSH_HIGHLIGHT_TOKENS_COMMANDSEPARATOR:#"$arg"} ]]; then
+    if [[ -n ${(M)ZSH_HIGHLIGHT_TOKENS_COMMANDSEPARATOR:#"$arg"} ]] &&
+       [[ $braces_stack != *T* || $arg != ('||'|'&&') ]]; then
+
+      # First, determine the style of the command separator itself.
       if _zsh_highlight_main__stack_pop T || _zsh_highlight_main__stack_pop Q; then
         # Missing closing square bracket(s)
         style=unknown-token
+      elif $in_array_assignment; then
+        case $arg in
+          # Literal newlines are just fine.
+          ($'\n') style=commandseparator;;
+          # Semicolons are parsed the same way as literal newlines.  Nevertheless,
+          # highlight them as errors since they're probably unintended.  Compare
+          # issue #691.
+          (';') style=unknown-token;;
+          # Other command separators aren't allowed.
+          (*) style=unknown-token;;
+        esac
       elif [[ $this_word == *':regular:'* ]]; then
-       # This highlights empty commands (semicolon follows nothing) as an error.
-       # Zsh accepts them, though.
+        style=commandseparator
+      elif [[ $this_word == *':start:'* ]] && [[ $arg == $'\n' ]]; then
+        style=commandseparator
+      elif [[ $this_word == *':start:'* ]] && [[ $arg == ';' ]] && (( $#in_alias )); then
         style=commandseparator 
       else
+        # Empty commands (semicolon follows nothing) are valid syntax.
+        # However, in interactive use they are likely to be erroneous;
+        # therefore, we highlight them as errors.
+        #
+        # Alias definitions are exempted from this check to allow multiline aliases
+        # with explicit (redundant) semicolons: «alias foo=$'bar;\nbaz'» (issue #677).
+        #
+        # See also #691 about possibly changing the style used here. 
         style=unknown-token
       fi
-     if [[ $arg == ';' ]] && $in_array_assignment; then
+
+      # Second, determine the style of next_word.
+      if [[ $arg == $'\n' ]] && $in_array_assignment; then
         # literal newline inside an array assignment
         next_word=':regular:'
+      elif [[ $arg == ';' ]] && $in_array_assignment; then
+        # literal semicolon inside an array assignment
+        next_word=':regular:'
       else
         next_word=':start:'
         highlight_glob=true
+        saw_assignment=false
+        (){
+          local alias_name
+          for alias_name in ${(k)seen_alias[(R)<$#in_alias->]}; do
+            # We can't unset keys that contain special characters (] \ and some others).
+            # More details: https://www.zsh.org/workers/43269
+            seen_alias=("${(@kv)seen_alias[(I)^$alias_name]}")
+          done
+        }
         if [[ $arg != '|' && $arg != '|&' ]]; then
           next_word+=':start_of_pipeline:'
         fi
       fi
+
     elif ! (( in_redirection)) && [[ $this_word == *':always:'* && $arg == 'always' ]]; then
       # try-always construct
       style=reserved-word # de facto a reserved word, although not de jure
-     next_word=':start:' # only left brace is allowed, apparently
+      highlight_glob=true
+      saw_assignment=false
+      next_word=':start::start_of_pipeline:' # only left brace is allowed, apparently
     elif ! (( in_redirection)) && [[ $this_word == *':start:'* ]]; then # $arg is the command word
       if (( ${+precommand_options[$arg]} )) && _zsh_highlight_main__is_runnable $arg; then
         style=precommand
-      flags_with_argument=${precommand_options[$arg]%:*}
-      flags_sans_argument=${precommand_options[$arg]#*:}
+        () {
+          set -- "${(@s.:.)precommand_options[$arg]}"
+          flags_with_argument=$1
+          flags_sans_argument=$2
+          flags_solo=$3
+        }
         next_word=${next_word//:regular:/}
         next_word+=':sudo_opt:'
         next_word+=':start:'
+        if [[ $arg == 'exec' || $arg == 'env' ]]; then
+          # To allow "exec 2>&1;" and "env | grep" where there's no command word
+          next_word+=':regular:'
+        fi
       else
         case $res in
-        reserved)       # reserved word
+          (reserved)    # reserved word
                         style=reserved-word
                         # Match braces and handle special cases.
                         case $arg in
@@ -831,20 +1008,30 @@ _zsh_highlight_main_highlighter_highlight_list()
                             fi
                             ;;
                         esac
+                        if $saw_assignment && [[ $style != unknown-token ]]; then
+                          style=unknown-token
+                        fi
                         ;;
-        'suffix alias') style=suffix-alias;;
-        alias)          :;;
-        builtin)        style=builtin
+          ('suffix alias')
+                        style=suffix-alias
+                        ;;
+          ('global alias')
+                        style=global-alias
+                        ;;
+          (alias)       :;;
+          (builtin)     style=builtin
                         [[ $arg == $'\x5b' ]] && braces_stack='Q'"$braces_stack"
                         ;;
-        function)       style=function;;
-        command)        style=command;;
-        hashed)         style=hashed-command;;
-        none)           if (( ! in_param )) && _zsh_highlight_main_highlighter_check_assign; then
+          (function)    style=function;;
+          (command)     style=command;;
+          (hashed)      style=hashed-command;;
+          (none)        if (( ! in_param )) && _zsh_highlight_main_highlighter_check_assign; then
                           _zsh_highlight_main_add_region_highlight $start_pos $end_pos assign
                           local i=$(( arg[(i)=] + 1 ))
+                          saw_assignment=true
                           if [[ $arg[i] == '(' ]]; then
                             in_array_assignment=true
+                            _zsh_highlight_main_add_region_highlight start_pos+i-1 start_pos+i reserved-word
                           else
                             # assignment to a scalar parameter.
                             # (For array assignments, the command doesn't start until the ")" token.)
@@ -868,6 +1055,7 @@ _zsh_highlight_main_highlighter_highlight_list()
                              [[ $arg[0,1] == $histchars[2,2] ]]; then
                           style=history-expansion
                         elif (( ! in_param )) &&
+                             ! $saw_assignment &&
                              [[ $arg[1,2] == '((' ]]; then
                           # Arithmetic evaluation.
                           #
@@ -888,6 +1076,7 @@ _zsh_highlight_main_highlighter_highlight_list()
                           # anonymous function
                           style=reserved-word
                         elif (( ! in_param )) &&
+                             ! $saw_assignment &&
                              [[ $arg == $'\x28' ]]; then
                           # subshell
                           style=reserved-word
@@ -902,14 +1091,14 @@ _zsh_highlight_main_highlighter_highlight_list()
                           fi
                           _zsh_highlight_main__stack_pop 'R' reserved-word
                         else
-                          if _zsh_highlight_main_highlighter_check_path $arg; then
+                          if _zsh_highlight_main_highlighter_check_path $arg 1; then
                             style=$REPLY
                           else
                             style=unknown-token
                           fi
                         fi
                         ;;
-        *)              _zsh_highlight_main_add_region_highlight $start_pos $end_pos arg0_$res
+          (*)           _zsh_highlight_main_add_region_highlight $start_pos $end_pos arg0_$res
                         continue
                         ;;
         esac
@@ -917,13 +1106,18 @@ _zsh_highlight_main_highlighter_highlight_list()
       if [[ -n ${(M)ZSH_HIGHLIGHT_TOKENS_CONTROL_FLOW:#"$arg"} ]]; then
         next_word=':start::start_of_pipeline:'
       fi
+    elif _zsh_highlight_main__is_global_alias "$arg"; then # $arg is a global alias that isn't in command position
+      style=global-alias
     else # $arg is a non-command word
       case $arg in
-        $'\x29') # subshell or end of array assignment
+        ($'\x29')
+                  # subshell or end of array assignment
                   if $in_array_assignment; then
-                   style=assign
+                    _zsh_highlight_main_add_region_highlight $start_pos $end_pos assign
+                    _zsh_highlight_main_add_region_highlight $start_pos $end_pos reserved-word
                     in_array_assignment=false
                     next_word+=':start:'
+                    continue
                   elif (( in_redirection )); then
                     style=unknown-token
                   else
@@ -933,8 +1127,10 @@ _zsh_highlight_main_highlighter_highlight_list()
                       return 0
                     fi
                     _zsh_highlight_main__stack_pop 'R' reserved-word
-                 fi;;
-        $'\x28\x29') # possibly a function definition
+                  fi
+                  ;;
+        ($'\x28\x29')
+                  # possibly a function definition
                   if (( in_redirection )) || $in_array_assignment; then
                     style=unknown-token
                   else
@@ -945,7 +1141,7 @@ _zsh_highlight_main_highlighter_highlight_list()
                     style=reserved-word
                   fi
                   ;;
-        *)       if false; then
+        (*)       if false; then
                   elif [[ $arg = $'\x7d' ]] && $right_brace_is_recognised_everywhere; then
                     # Parsing rule: {
                     #
@@ -974,7 +1170,7 @@ _zsh_highlight_main_highlighter_highlight_list()
     fi
     _zsh_highlight_main_add_region_highlight $start_pos $end_pos $style
   done
-  (( in_alias == 1 )) && in_alias=0 _zsh_highlight_main_add_region_highlight $start_pos $end_pos $alias_style
+  (( $#in_alias )) && in_alias=() _zsh_highlight_main_add_region_highlight $start_pos $end_pos $alias_style
   (( in_param == 1 )) && in_param=0 _zsh_highlight_main_add_region_highlight $start_pos $end_pos $param_style
   [[ "$proc_buf" = (#b)(#s)(([[:space:]]|\\$'\n')#) ]]
   REPLY=$(( end_pos + ${#match[1]} - 1 ))
@@ -1006,12 +1202,32 @@ _zsh_highlight_main_highlighter_highlight_path_separators()
 # Check if $1 is a path.
 # If yes, return 0 and in $REPLY the style to use.
 # Else, return non-zero (and the contents of $REPLY is undefined).
+#
+# $2 should be non-zero iff we're in command position.
 _zsh_highlight_main_highlighter_check_path()
 {
   _zsh_highlight_main_highlighter_expand_path "$1"
   local expanded_path="$REPLY" tmp_path
+  integer in_command_position=$2
 
+  if [[ $zsyh_user_options[autocd] == on ]]; then
+    integer autocd=1
+  else
+    integer autocd=0
+  fi
+
+  if (( in_command_position )); then
+    # ### Currently, this value is never returned: either it's overwritten
+    # ### below, or the return code is non-zero
+    REPLY=arg0
+  else
     REPLY=path
+  fi
+
+  if [[ ${1[1]} == '=' && $1 == ??* && ${1[2]} != $'\x28' && $zsyh_user_options[equals] == 'on' && $expanded_path[1] != '/' ]]; then
+    REPLY=unknown-token # will error out if executed
+    return 0
+  fi
 
   [[ -z $expanded_path ]] && return 1
 
@@ -1028,24 +1244,56 @@ _zsh_highlight_main_highlighter_check_path()
     tmp_path=$tmp_path:h
   done
 
-  [[ -L $expanded_path ]] && return 0
-  [[ -e $expanded_path ]] && return 0
+  if (( in_command_position )); then
+    if [[ -x $expanded_path ]]; then
+      if (( autocd )); then
+        if [[ -d $expanded_path ]]; then
+          REPLY=autodirectory
+        fi
+        return 0
+      elif [[ ! -d $expanded_path ]]; then
+        # ### This seems unreachable for the current callers
+        return 0
+      fi
+    fi
+  else
+    if [[ -L $expanded_path || -e $expanded_path ]]; then
+      return 0
+    fi
+  fi
 
   # Search the path in CDPATH
+  if [[ $expanded_path != /* ]] && (( autocd || ! in_command_position )); then
+    # TODO: When we've dropped support for pre-5.0.6 zsh, use the *(Y1) glob qualifier here.
     local cdpath_dir
     for cdpath_dir in $cdpath ; do
-    [[ -e "$cdpath_dir/$expanded_path" ]] && return 0
+      if [[ -d "$cdpath_dir/$expanded_path" && -x "$cdpath_dir/$expanded_path" ]]; then
+        if (( in_command_position && autocd )); then
+          REPLY=autodirectory
+        fi
+        return 0
+      fi
     done
+  fi
 
   # If dirname($1) doesn't exist, neither does $1.
   [[ ! -d ${expanded_path:h} ]] && return 1
 
   # If this word ends the buffer, check if it's the prefix of a valid path.
   if (( has_end && (len == end_pos) )) &&
+     (( ! $#in_alias )) &&
      [[ $WIDGET != zle-line-finish ]]; then
+    # TODO: When we've dropped support for pre-5.0.6 zsh, use the *(Y1) glob qualifier here.
     local -a tmp
+    if (( in_command_position )); then
+      # We include directories even when autocd is enabled, because those
+      # directories might contain executable files: e.g., BUFFER="/bi" en route
+      # to typing "/bin/sh".
+      tmp=( ${expanded_path}*(N-*,N-/) )
+    else
       tmp=( ${expanded_path}*(N) )
-    (( $#tmp > 0 )) && REPLY=path_prefix && return 0
+    fi
+    (( ${+tmp[1]} )) && REPLY=path_prefix && return 0
   fi
 
   # It's not a path.
@@ -1055,6 +1303,8 @@ _zsh_highlight_main_highlighter_check_path()
 # Highlight an argument and possibly special chars in quotes starting at $1 in $arg
 # This command will at least highlight $1 to end_pos with the default style
 # If $2 is set to 0, the argument cannot be highlighted as an option.
+#
+# This function currently assumes it's never called for the command word.
 _zsh_highlight_main_highlighter_highlight_argument()
 {
   local base_style=default i=$1 option_eligible=${2:-1} path_eligible=1 ret start style
@@ -1096,8 +1346,12 @@ _zsh_highlight_main_highlighter_highlight_argument()
       fi
   esac
 
-  for (( ; i <= $#arg ; i += 1 )); do
+  # This loop is a hot path.  Keep it fast!
+  (( --i ))
+  while (( ++i <= $#arg )); do
+    i=${arg[(ib.i.)[\\\'\"\`\$\<\>\*\?]]}
     case "$arg[$i]" in
+      "") break;;
       "\\") (( i += 1 )); continue;;
       "'")
         _zsh_highlight_main_highlighter_highlight_single_quote $i
@@ -1124,6 +1378,12 @@ _zsh_highlight_main_highlighter_highlight_argument()
           highlights+=($reply)
           continue
         elif [[ $arg[i+1] == $'\x28' ]]; then
+          if [[ $arg[i+2] == $'\x28' ]] && _zsh_highlight_main_highlighter_highlight_arithmetic $i; then
+            # Arithmetic expansion
+            (( i = REPLY ))
+            highlights+=($reply)
+            continue
+          fi
           start=$i
           (( i += 2 ))
           _zsh_highlight_main_highlighter_highlight_list $(( start_pos + i - 1 )) S $has_end $arg[i,-1]
@@ -1139,7 +1399,7 @@ _zsh_highlight_main_highlighter_highlight_argument()
           fi
           continue
         fi
-        while [[ $arg[i+1] == [\^=~#+] ]]; do
+        while [[ $arg[i+1] == [=~#+'^'] ]]; do
           (( i += 1 ))
         done
         if [[ $arg[i+1] == [*@#?$!-] ]]; then
@@ -1164,7 +1424,9 @@ _zsh_highlight_main_highlighter_highlight_argument()
         fi
         ;|
       *)
-        if $highlight_glob && [[ ${arg[$i]} =~ ^[*?] || ${arg:$i-1} =~ ^\<[0-9]*-[0-9]*\> ]]; then
+        if $highlight_glob &&
+           [[ $zsyh_user_options[multios] == on || $in_redirection -eq 0 ]] &&
+           [[ ${arg[$i]} =~ ^[*?] || ${arg:$i-1} =~ ^\<[0-9]*-[0-9]*\> ]]; then
           highlights+=($(( start_pos + i - 1 )) $(( start_pos + i + $#MATCH - 1)) globbing)
           (( i += $#MATCH - 1 ))
           path_eligible=0
@@ -1175,11 +1437,20 @@ _zsh_highlight_main_highlighter_highlight_argument()
     esac
   done
 
-  if (( path_eligible )) && _zsh_highlight_main_highlighter_check_path $arg[$1,-1]; then
+  if (( path_eligible )); then
+    if (( in_redirection )) && [[ $last_arg == *['<>']['&'] && $arg[$1,-1] == (<0->|p|-) ]]; then
+      if [[ $arg[$1,-1] == (p|-) ]]; then
+        base_style=redirection
+      else
+        base_style=numeric-fd
+      fi
+    # This function is currently never called for the command word, so $2 is hard-coded as 0.
+    elif _zsh_highlight_main_highlighter_check_path $arg[$1,-1] 0; then
       base_style=$REPLY
       _zsh_highlight_main_highlighter_highlight_path_separators $base_style
       highlights+=($reply)
     fi
+  fi
 
   highlights=($(( start_pos + $1 - 1 )) $end_pos $base_style $highlights)
   _zsh_highlight_main_add_many_region_highlights $highlights
@@ -1231,14 +1502,14 @@ _zsh_highlight_main_highlighter_highlight_double_quote()
     (( j = i + start_pos - 1 ))
     (( k = j + 1 ))
     case "$arg[$i]" in
-      '"') break;;
-      '`') saved_reply=($reply)
+      ('"') break;;
+      ('`') saved_reply=($reply)
             _zsh_highlight_main_highlighter_highlight_backtick $i
             (( i = REPLY ))
             reply=($saved_reply $reply)
             continue
             ;;
-      '$' ) style=dollar-double-quoted-argument
+      ('$') style=dollar-double-quoted-argument
             # Look for an alphanumeric parameter name.
             if [[ ${arg:$i} =~ ^([A-Za-z_][A-Za-z0-9_]*|[0-9]+) ]] ; then
               (( k += $#MATCH )) # highlight the parameter name
@@ -1255,9 +1526,16 @@ _zsh_highlight_main_highlighter_highlight_double_quote()
               (( k += 1 )) # highlight both dollar signs
               (( i += 1 )) # don't consider the second one as introducing another parameter expansion
             elif [[ $arg[i+1] == $'\x28' ]]; then
+              saved_reply=($reply)
+              if [[ $arg[i+2] == $'\x28' ]] && _zsh_highlight_main_highlighter_highlight_arithmetic $i; then
+                # Arithmetic expansion
+                (( i = REPLY ))
+                reply=($saved_reply $reply)
+                continue
+              fi
+
               breaks+=( $last_break $(( start_pos + i - 1 )) )
               (( i += 2 ))
-              saved_reply=($reply)
               _zsh_highlight_main_highlighter_highlight_list $(( start_pos + i - 1 )) S $has_end $arg[i,-1]
               ret=$?
               (( i += REPLY ))
@@ -1438,6 +1716,96 @@ _zsh_highlight_main_highlighter_highlight_backtick()
   REPLY=$i
 }
 
+# Highlight special chars inside arithmetic expansions
+_zsh_highlight_main_highlighter_highlight_arithmetic()
+{
+  local -a saved_reply
+  local style
+  integer i j k paren_depth ret
+  reply=()
+
+  for (( i = $1 + 3 ; i <= end_pos - start_pos ; i += 1 )) ; do
+    (( j = i + start_pos - 1 ))
+    (( k = j + 1 ))
+    case "$arg[$i]" in
+      [\'\"\\@{}])
+        style=unknown-token
+        ;;
+      '(')
+        (( paren_depth++ ))
+        continue
+        ;;
+      ')')
+        if (( paren_depth )); then
+          (( paren_depth-- ))
+          continue
+        fi
+        [[ $arg[i+1] == ')' ]] && { (( i++ )); break; }
+        # Special case ) at the end of the buffer to avoid flashing command substitution for a character
+        (( has_end && (len == k) )) && break
+        # This is a single paren and there are no open parens, so this isn't an arithmetic expansion
+        return 1
+        ;;
+      '`')
+        saved_reply=($reply)
+        _zsh_highlight_main_highlighter_highlight_backtick $i
+        (( i = REPLY ))
+        reply=($saved_reply $reply)
+        continue
+        ;;
+      '$' )
+        if [[ $arg[i+1] == $'\x28' ]]; then
+          saved_reply=($reply)
+          if [[ $arg[i+2] == $'\x28' ]] && _zsh_highlight_main_highlighter_highlight_arithmetic $i; then
+            # Arithmetic expansion
+            (( i = REPLY ))
+            reply=($saved_reply $reply)
+            continue
+          fi
+
+          (( i += 2 ))
+          _zsh_highlight_main_highlighter_highlight_list $(( start_pos + i - 1 )) S $has_end $arg[i,end_pos]
+          ret=$?
+          (( i += REPLY ))
+          reply=(
+            $saved_reply
+            $j $(( start_pos + i )) command-substitution-quoted
+            $j $(( j + 2 )) command-substitution-delimiter-quoted
+            $reply
+          )
+          if (( ret == 0 )); then
+            reply+=($(( start_pos + i - 1 )) $(( start_pos + i )) command-substitution-delimiter)
+          fi
+          continue
+        else
+          continue
+        fi
+        ;;
+      ($histchars[1]) # ! - may be a history expansion
+        if [[ $arg[i+1] != ('='|$'\x28'|$'\x7b'|[[:blank:]]) ]]; then
+          style=history-expansion
+        else
+          continue
+        fi
+        ;;
+      *)
+        continue
+        ;;
+
+    esac
+    reply+=($j $k $style)
+  done
+
+  if [[ $arg[i] != ')' ]]; then
+    # If unclosed, i points past the end
+    (( i-- ))
+  fi
+    style=arithmetic-expansion
+  reply=($(( start_pos + $1 - 1)) $(( start_pos + i )) arithmetic-expansion $reply)
+  REPLY=$i
+}
+
+
 # Called with a single positional argument.
 # Perform filename expansion (tilde expansion) on the argument and set $REPLY to the expanded value.
 #
@@ -1457,6 +1825,13 @@ _zsh_highlight_main_highlighter_expand_path()
 # -------------------------------------------------------------------------------------------------
 
 _zsh_highlight_main__precmd_hook() {
+  # Unset the WARN_NESTED_VAR option, taking care not to error if the option
+  # doesn't exist (zsh older than zsh-5.3.1-test-2).
+  setopt localoptions
+  if eval '[[ -o warnnestedvar ]]' 2>/dev/null; then
+    unsetopt warnnestedvar
+  fi
+
   _zsh_highlight_main__command_type_cache=()
 }
 

highlighters/main/test-data/abspath-in-command-position1.zsh

@@ -31,5 +31,5 @@
 BUFFER=$'/'
 
 expected_region_highlight=(
-  '1 1 path' # /
+  '1 1 path_prefix' # /
 )

highlighters/main/test-data/abspath-in-command-position1b.zsh

@@ -0,0 +1,36 @@
+#!/usr/bin/env zsh
+# -------------------------------------------------------------------------------------------------
+# Copyright (c) 2020 zsh-syntax-highlighting contributors
+# All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without modification, are permitted
+# provided that the following conditions are met:
+#
+#  * Redistributions of source code must retain the above copyright notice, this list of conditions
+#    and the following disclaimer.
+#  * Redistributions in binary form must reproduce the above copyright notice, this list of
+#    conditions and the following disclaimer in the documentation and/or other materials provided
+#    with the distribution.
+#  * Neither the name of the zsh-syntax-highlighting contributors nor the names of its contributors
+#    may be used to endorse or promote products derived from this software without specific prior
+#    written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
+# IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
+# FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
+# IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+# -------------------------------------------------------------------------------------------------
+# -*- mode: zsh; sh-indentation: 2; indent-tabs-mode: nil; sh-basic-offset: 2; -*-
+# vim: ft=zsh sw=2 ts=2 et
+# -------------------------------------------------------------------------------------------------
+
+setopt autocd
+BUFFER=$'/'
+
+expected_region_highlight=(
+  '1 1 autodirectory' # /
+)

highlighters/main/test-data/abspath-in-command-position3.zsh

@@ -28,8 +28,10 @@
 # vim: ft=zsh sw=2 ts=2 et
 # -------------------------------------------------------------------------------------------------
 
-BUFFER=$'/bin'
+BUFFER=$'/bin; /bin'
 
 expected_region_highlight=(
-  '1 4 path' # /bin
+  '1 4 unknown-token' # /bin (in middle)
+  '5 5 commandseparator' # ;
+  '7 10 path_prefix' # /bin (at end)
 )

highlighters/main/test-data/abspath-in-command-position3b.zsh

@@ -0,0 +1,38 @@
+#!/usr/bin/env zsh
+# -------------------------------------------------------------------------------------------------
+# Copyright (c) 2020 zsh-syntax-highlighting contributors
+# All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without modification, are permitted
+# provided that the following conditions are met:
+#
+#  * Redistributions of source code must retain the above copyright notice, this list of conditions
+#    and the following disclaimer.
+#  * Redistributions in binary form must reproduce the above copyright notice, this list of
+#    conditions and the following disclaimer in the documentation and/or other materials provided
+#    with the distribution.
+#  * Neither the name of the zsh-syntax-highlighting contributors nor the names of its contributors
+#    may be used to endorse or promote products derived from this software without specific prior
+#    written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
+# IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
+# FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
+# IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+# -------------------------------------------------------------------------------------------------
+# -*- mode: zsh; sh-indentation: 2; indent-tabs-mode: nil; sh-basic-offset: 2; -*-
+# vim: ft=zsh sw=2 ts=2 et
+# -------------------------------------------------------------------------------------------------
+
+setopt autocd
+BUFFER=$'/bin; /bin'
+
+expected_region_highlight=(
+  '1 4 autodirectory' # /bin (in middle)
+  '5 5 commandseparator' # ;
+  '7 10 autodirectory' # /bin (at end)
+)

highlighters/main/test-data/alias-brackets.zsh

@@ -0,0 +1,41 @@
+#!/usr/bin/env zsh
+# -------------------------------------------------------------------------------------------------
+# Copyright (c) 2021 zsh-syntax-highlighting contributors
+# All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without modification, are permitted
+# provided that the following conditions are met:
+#
+#  * Redistributions of source code must retain the above copyright notice, this list of conditions
+#    and the following disclaimer.
+#  * Redistributions in binary form must reproduce the above copyright notice, this list of
+#    conditions and the following disclaimer in the documentation and/or other materials provided
+#    with the distribution.
+#  * Neither the name of the zsh-syntax-highlighting contributors nor the names of its contributors
+#    may be used to endorse or promote products derived from this software without specific prior
+#    written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
+# IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
+# FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
+# IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+# -------------------------------------------------------------------------------------------------
+# -*- mode: zsh; sh-indentation: 2; indent-tabs-mode: nil; sh-basic-offset: 2; -*-
+# vim: ft=zsh sw=2 ts=2 et
+# -------------------------------------------------------------------------------------------------
+
+# Have to use cat here as it must be a command that exists.
+# Otherwise, the test would fail with the first token being recognized
+# as an "unknown-token".
+alias ]=cat
+
+BUFFER='] /'
+
+expected_region_highlight=(
+  '1 1 alias' # ]
+  '3 3 path' # /
+)

highlighters/main/test-data/alias-comment1.zsh

@@ -27,11 +27,11 @@
 # vim: ft=zsh sw=2 ts=2 et
 # -------------------------------------------------------------------------------------------------
 
-# see alias-comment2.zsh
+# see alias-comment2.zsh and comment-followed.zsh
 setopt interactivecomments
 alias x=$'# foo\npwd'
 BUFFER='x'
 
 expected_region_highlight=(
-  '1 1 alias "issue #616"' # x
+  '1 1 alias' # x
 )

highlighters/main/test-data/alias-in-cmdsubst.zsh

@@ -0,0 +1,43 @@
+#!/usr/bin/env zsh
+# -------------------------------------------------------------------------------------------------
+# Copyright (c) 2019 zsh-syntax-highlighting contributors
+# All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without modification, are permitted
+# provided that the following conditions are met:
+#
+#  * Redistributions of source code must retain the above copyright notice, this list of conditions
+#    and the following disclaimer.
+#  * Redistributions in binary form must reproduce the above copyright notice, this list of
+#    conditions and the following disclaimer in the documentation and/or other materials provided
+#    with the distribution.
+#  * Neither the name of the zsh-syntax-highlighting contributors nor the names of its contributors
+#    may be used to endorse or promote products derived from this software without specific prior
+#    written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
+# IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
+# FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
+# IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+# -------------------------------------------------------------------------------------------------
+# -*- mode: zsh; sh-indentation: 2; indent-tabs-mode: nil; sh-basic-offset: 2; -*-
+# vim: ft=zsh sw=2 ts=2 et
+# -------------------------------------------------------------------------------------------------
+
+alias p='print -r --'
+
+BUFFER=$'s=$(p foo)'
+
+expected_region_highlight=(
+  '1 10 assign' # s=$(p foo)
+  '3 10 default' # $(p foo)
+  '3 10 command-substitution-unquoted' # $(p foo)
+  '3 4 command-substitution-delimiter-unquoted' # $(
+  '5 5 alias' # p
+  '7 9 default' # foo
+  '10 10 command-substitution-delimiter-unquoted' # )
+)

highlighters/main/test-data/alias-loop.zsh

@@ -28,12 +28,16 @@
 # vim: ft=zsh sw=2 ts=2 et
 # -------------------------------------------------------------------------------------------------
 
+function b() {} # beware of ALIAS_FUNC_DEF
 alias a=b b=c c=b
 
 BUFFER='a foo; :'
 
 expected_region_highlight=(
-  '1 1 unknown-token' # a (invalid alias loop)
+  # An alias is ineligible for expansion whilst it's being expanded.
+  # Therefore, the "b" in the expansion of the alias "c" is not considered
+  # as an alias.
+  '1 1 alias' # a
   '3 5 default' # foo
   '6 6 commandseparator' # ;
   '8 8 builtin' # :

highlighters/main/test-data/alias-reuse1.zsh

@@ -0,0 +1,39 @@
+#!/usr/bin/env zsh
+# -------------------------------------------------------------------------------------------------
+# Copyright (c) 2020 zsh-syntax-highlighting contributors
+# All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without modification, are permitted
+# provided that the following conditions are met:
+#
+#  * Redistributions of source code must retain the above copyright notice, this list of conditions
+#    and the following disclaimer.
+#  * Redistributions in binary form must reproduce the above copyright notice, this list of
+#    conditions and the following disclaimer in the documentation and/or other materials provided
+#    with the distribution.
+#  * Neither the name of the zsh-syntax-highlighting contributors nor the names of its contributors
+#    may be used to endorse or promote products derived from this software without specific prior
+#    written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
+# IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
+# FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
+# IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+# -------------------------------------------------------------------------------------------------
+# -*- mode: zsh; sh-indentation: 2; indent-tabs-mode: nil; sh-basic-offset: 2; -*-
+# vim: ft=zsh sw=2 ts=2 et
+# -------------------------------------------------------------------------------------------------
+
+alias a=: b='a | a'
+
+BUFFER='b | b'
+
+expected_region_highlight=(
+  '1 1 alias' # b
+  '3 3 commandseparator' # |
+  '5 5 alias' # b
+)

highlighters/main/test-data/alias-reuse2.zsh

@@ -0,0 +1,39 @@
+#!/usr/bin/env zsh
+# -------------------------------------------------------------------------------------------------
+# Copyright (c) 2020 zsh-syntax-highlighting contributors
+# All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without modification, are permitted
+# provided that the following conditions are met:
+#
+#  * Redistributions of source code must retain the above copyright notice, this list of conditions
+#    and the following disclaimer.
+#  * Redistributions in binary form must reproduce the above copyright notice, this list of
+#    conditions and the following disclaimer in the documentation and/or other materials provided
+#    with the distribution.
+#  * Neither the name of the zsh-syntax-highlighting contributors nor the names of its contributors
+#    may be used to endorse or promote products derived from this software without specific prior
+#    written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
+# IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
+# FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
+# IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+# -------------------------------------------------------------------------------------------------
+# -*- mode: zsh; sh-indentation: 2; indent-tabs-mode: nil; sh-basic-offset: 2; -*-
+# vim: ft=zsh sw=2 ts=2 et
+# -------------------------------------------------------------------------------------------------
+
+alias a=: b='a && a'
+
+BUFFER='b && b'
+
+expected_region_highlight=(
+  '1 1 alias' # b
+  '3 4 commandseparator' # &&
+  '6 6 alias' # b
+)

highlighters/main/test-data/alias-reuse3.zsh

@@ -0,0 +1,39 @@
+#!/usr/bin/env zsh
+# -------------------------------------------------------------------------------------------------
+# Copyright (c) 2020 zsh-syntax-highlighting contributors
+# All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without modification, are permitted
+# provided that the following conditions are met:
+#
+#  * Redistributions of source code must retain the above copyright notice, this list of conditions
+#    and the following disclaimer.
+#  * Redistributions in binary form must reproduce the above copyright notice, this list of
+#    conditions and the following disclaimer in the documentation and/or other materials provided
+#    with the distribution.
+#  * Neither the name of the zsh-syntax-highlighting contributors nor the names of its contributors
+#    may be used to endorse or promote products derived from this software without specific prior
+#    written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
+# IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
+# FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
+# IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+# -------------------------------------------------------------------------------------------------
+# -*- mode: zsh; sh-indentation: 2; indent-tabs-mode: nil; sh-basic-offset: 2; -*-
+# vim: ft=zsh sw=2 ts=2 et
+# -------------------------------------------------------------------------------------------------
+
+alias a=: b='a; a'
+
+BUFFER='b; b'
+
+expected_region_highlight=(
+  '1 1 alias' # b
+  '2 2 commandseparator' # ;
+  '4 4 alias' # b
+)

highlighters/main/test-data/alias-reuse4.zsh

@@ -0,0 +1,42 @@
+#!/usr/bin/env zsh
+# -------------------------------------------------------------------------------------------------
+# Copyright (c) 2020 zsh-syntax-highlighting contributors
+# All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without modification, are permitted
+# provided that the following conditions are met:
+#
+#  * Redistributions of source code must retain the above copyright notice, this list of conditions
+#    and the following disclaimer.
+#  * Redistributions in binary form must reproduce the above copyright notice, this list of
+#    conditions and the following disclaimer in the documentation and/or other materials provided
+#    with the distribution.
+#  * Neither the name of the zsh-syntax-highlighting contributors nor the names of its contributors
+#    may be used to endorse or promote products derived from this software without specific prior
+#    written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
+# IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
+# FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
+# IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+# -------------------------------------------------------------------------------------------------
+# -*- mode: zsh; sh-indentation: 2; indent-tabs-mode: nil; sh-basic-offset: 2; -*-
+# vim: ft=zsh sw=2 ts=2 et
+# -------------------------------------------------------------------------------------------------
+
+alias a=: b='a $(a)'
+
+BUFFER='b $(b)'
+
+expected_region_highlight=(
+  '1 1 alias' # b
+  '3 6 default' # $(b)
+  '3 6 command-substitution-unquoted' # $(b)
+  '3 4 command-substitution-delimiter-unquoted' # $(
+  '5 5 alias' # b
+  '6 6 command-substitution-delimiter-unquoted' # )
+)

highlighters/main/test-data/alias-reuse5.zsh

@@ -0,0 +1,43 @@
+#!/usr/bin/env zsh
+# -------------------------------------------------------------------------------------------------
+# Copyright (c) 2020 zsh-syntax-highlighting contributors
+# All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without modification, are permitted
+# provided that the following conditions are met:
+#
+#  * Redistributions of source code must retain the above copyright notice, this list of conditions
+#    and the following disclaimer.
+#  * Redistributions in binary form must reproduce the above copyright notice, this list of
+#    conditions and the following disclaimer in the documentation and/or other materials provided
+#    with the distribution.
+#  * Neither the name of the zsh-syntax-highlighting contributors nor the names of its contributors
+#    may be used to endorse or promote products derived from this software without specific prior
+#    written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
+# IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
+# FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
+# IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+# -------------------------------------------------------------------------------------------------
+# -*- mode: zsh; sh-indentation: 2; indent-tabs-mode: nil; sh-basic-offset: 2; -*-
+# vim: ft=zsh sw=2 ts=2 et
+# -------------------------------------------------------------------------------------------------
+
+alias a=: b='a < <(a)'
+
+BUFFER='b < <(b)'
+
+expected_region_highlight=(
+  '1 1 alias' # b
+  '3 3 redirection' # <
+  '5 8 default' # <(b)
+  '5 8 process-substitution' # <(b)
+  '5 6 process-substitution-delimiter' # <(
+  '7 7 alias' # b
+  '8 8 process-substitution-delimiter' # )
+)

highlighters/main/test-data/alias-self2.zsh

@@ -0,0 +1,37 @@
+#!/usr/bin/env zsh
+# -------------------------------------------------------------------------------------------------
+# Copyright (c) 2020 zsh-syntax-highlighting contributors
+# All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without modification, are permitted
+# provided that the following conditions are met:
+#
+#  * Redistributions of source code must retain the above copyright notice, this list of conditions
+#    and the following disclaimer.
+#  * Redistributions in binary form must reproduce the above copyright notice, this list of
+#    conditions and the following disclaimer in the documentation and/or other materials provided
+#    with the distribution.
+#  * Neither the name of the zsh-syntax-highlighting contributors nor the names of its contributors
+#    may be used to endorse or promote products derived from this software without specific prior
+#    written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
+# IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
+# FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
+# IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+# -------------------------------------------------------------------------------------------------
+# -*- mode: zsh; sh-indentation: 2; indent-tabs-mode: nil; sh-basic-offset: 2; -*-
+# vim: ft=zsh sw=2 ts=2 et
+# -------------------------------------------------------------------------------------------------
+
+alias cat='cat | cat'
+
+BUFFER='cat'
+
+expected_region_highlight=(
+  '1 3 alias' # cat
+)

highlighters/main/test-data/alias-to-dir.zsh

@@ -32,5 +32,5 @@ alias x=/
 BUFFER=$'x'
 
 expected_region_highlight=(
-  '1 1 unknown-token "issue #668"' # x (/)
+  '1 1 unknown-token' # x (/)
 )

highlighters/main/test-data/alias-to-dir1b.zsh

@@ -0,0 +1,37 @@
+#!/usr/bin/env zsh
+# -------------------------------------------------------------------------------------------------
+# Copyright (c) 2020 zsh-syntax-highlighting contributors
+# All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without modification, are permitted
+# provided that the following conditions are met:
+#
+#  * Redistributions of source code must retain the above copyright notice, this list of conditions
+#    and the following disclaimer.
+#  * Redistributions in binary form must reproduce the above copyright notice, this list of
+#    conditions and the following disclaimer in the documentation and/or other materials provided
+#    with the distribution.
+#  * Neither the name of the zsh-syntax-highlighting contributors nor the names of its contributors
+#    may be used to endorse or promote products derived from this software without specific prior
+#    written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
+# IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
+# FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
+# IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+# -------------------------------------------------------------------------------------------------
+# -*- mode: zsh; sh-indentation: 2; indent-tabs-mode: nil; sh-basic-offset: 2; -*-
+# vim: ft=zsh sw=2 ts=2 et
+# -------------------------------------------------------------------------------------------------
+
+setopt autocd
+alias x=/
+BUFFER=$'x'
+
+expected_region_highlight=(
+  '1 1 alias' # x
+)

highlighters/main/test-data/always2.zsh

@@ -32,7 +32,7 @@ BUFFER=$'{\nls\n} always { pwd }'
 
 expected_region_highlight=(
   '1 1 reserved-word' # {
-  '2 2 unknown-token' # \n
+  '2 2 commandseparator' # \n
   '3 4 command' # ls
   '5 5 commandseparator' # \n
   '6 6 reserved-word' # }

highlighters/main/test-data/arith-cmdsubst-mess.zsh

@@ -0,0 +1,46 @@
+#!/usr/bin/env zsh
+# -------------------------------------------------------------------------------------------------
+# Copyright (c) 2020 zsh-syntax-highlighting contributors
+# All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without modification, are permitted
+# provided that the following conditions are met:
+#
+#  * Redistributions of source code must retain the above copyright notice, this list of conditions
+#    and the following disclaimer.
+#  * Redistributions in binary form must reproduce the above copyright notice, this list of
+#    conditions and the following disclaimer in the documentation and/or other materials provided
+#    with the distribution.
+#  * Neither the name of the zsh-syntax-highlighting contributors nor the names of its contributors
+#    may be used to endorse or promote products derived from this software without specific prior
+#    written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
+# IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
+# FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
+# IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+# -------------------------------------------------------------------------------------------------
+# -*- mode: zsh; sh-indentation: 2; indent-tabs-mode: nil; sh-basic-offset: 2; -*-
+# vim: ft=zsh sw=2 ts=2 et
+# -------------------------------------------------------------------------------------------------
+
+BUFFER=$': $((ls); (ls))'
+
+expected_region_highlight=(
+  '1 1 builtin' # :
+  '3 15 default' # $((ls); (ls))
+  '3 15 command-substitution-unquoted' # $((ls); (ls))
+  '3 4 command-substitution-delimiter-unquoted' # $(
+  '5 5 reserved-word' # (
+  '6 7 command' # ls
+  '8 8 reserved-word' # )
+  '9 9 commandseparator' # ;
+  '11 11 reserved-word' # (
+  '12 13 command' # ls
+  '14 14 reserved-word' # )
+  '15 15 command-substitution-delimiter-unquoted' # )
+)

highlighters/main/test-data/arith1.zsh

@@ -0,0 +1,37 @@
+#!/usr/bin/env zsh
+# -------------------------------------------------------------------------------------------------
+# Copyright (c) 2020 zsh-syntax-highlighting contributors
+# All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without modification, are permitted
+# provided that the following conditions are met:
+#
+#  * Redistributions of source code must retain the above copyright notice, this list of conditions
+#    and the following disclaimer.
+#  * Redistributions in binary form must reproduce the above copyright notice, this list of
+#    conditions and the following disclaimer in the documentation and/or other materials provided
+#    with the distribution.
+#  * Neither the name of the zsh-syntax-highlighting contributors nor the names of its contributors
+#    may be used to endorse or promote products derived from this software without specific prior
+#    written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
+# IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
+# FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
+# IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+# -------------------------------------------------------------------------------------------------
+# -*- mode: zsh; sh-indentation: 2; indent-tabs-mode: nil; sh-basic-offset: 2; -*-
+# vim: ft=zsh sw=2 ts=2 et
+# -------------------------------------------------------------------------------------------------
+
+BUFFER=$': $(( 6 * 9 ))'
+
+expected_region_highlight=(
+  '1 1 builtin' # :
+  '3 14 default' # $(( 6 * 9 ))
+  '3 14 arithmetic-expansion' # $(( 6 * 9 ))
+)

highlighters/main/test-data/arith2.zsh

@@ -0,0 +1,38 @@
+#!/usr/bin/env zsh
+# -------------------------------------------------------------------------------------------------
+# Copyright (c) 2020 zsh-syntax-highlighting contributors
+# All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without modification, are permitted
+# provided that the following conditions are met:
+#
+#  * Redistributions of source code must retain the above copyright notice, this list of conditions
+#    and the following disclaimer.
+#  * Redistributions in binary form must reproduce the above copyright notice, this list of
+#    conditions and the following disclaimer in the documentation and/or other materials provided
+#    with the distribution.
+#  * Neither the name of the zsh-syntax-highlighting contributors nor the names of its contributors
+#    may be used to endorse or promote products derived from this software without specific prior
+#    written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
+# IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
+# FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
+# IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+# -------------------------------------------------------------------------------------------------
+# -*- mode: zsh; sh-indentation: 2; indent-tabs-mode: nil; sh-basic-offset: 2; -*-
+# vim: ft=zsh sw=2 ts=2 et
+# -------------------------------------------------------------------------------------------------
+
+BUFFER=$': "$(( 6 * 9 ))"'
+
+expected_region_highlight=(
+  '1 1 builtin' # :
+  '3 16 default' # "$(( 6 * 9 ))"
+  '3 16 double-quoted-argument' # "$(( 6 * 9 ))"
+  '4 15 arithmetic-expansion' # $(( 6 * 9 ))
+)

highlighters/main/test-data/arithmetic-command-substitution.zsh

@@ -0,0 +1,42 @@
+#!/usr/bin/env zsh
+# -------------------------------------------------------------------------------------------------
+# Copyright (c) 2020 zsh-syntax-highlighting contributors
+# All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without modification, are permitted
+# provided that the following conditions are met:
+#
+#  * Redistributions of source code must retain the above copyright notice, this list of conditions
+#    and the following disclaimer.
+#  * Redistributions in binary form must reproduce the above copyright notice, this list of
+#    conditions and the following disclaimer in the documentation and/or other materials provided
+#    with the distribution.
+#  * Neither the name of the zsh-syntax-highlighting contributors nor the names of its contributors
+#    may be used to endorse or promote products derived from this software without specific prior
+#    written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
+# IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
+# FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
+# IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+# -------------------------------------------------------------------------------------------------
+# -*- mode: zsh; sh-indentation: 2; indent-tabs-mode: nil; sh-basic-offset: 2; -*-
+# vim: ft=zsh sw=2 ts=2 et
+# -------------------------------------------------------------------------------------------------
+
+BUFFER=$': $(( $(echo 2) + 2 ))'
+
+expected_region_highlight=(
+  '1 1 builtin' # :
+  '3 22 default' # $(( $(echo 2) + 2 ))
+  '3 22 arithmetic-expansion' # $(( $(echo 2) + 2 ))
+  '7 15 command-substitution-quoted' # $(echo 2)
+  '7 8 command-substitution-delimiter-quoted' # $(
+  '9 12 builtin' # echo
+  '14 14 default' # 2
+  '15 15 command-substitution-delimiter' # )
+)

highlighters/main/test-data/arithmetic-doubled-parens.zsh

@@ -0,0 +1,37 @@
+#!/usr/bin/env zsh
+# -------------------------------------------------------------------------------------------------
+# Copyright (c) 2020 zsh-syntax-highlighting contributors
+# All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without modification, are permitted
+# provided that the following conditions are met:
+#
+#  * Redistributions of source code must retain the above copyright notice, this list of conditions
+#    and the following disclaimer.
+#  * Redistributions in binary form must reproduce the above copyright notice, this list of
+#    conditions and the following disclaimer in the documentation and/or other materials provided
+#    with the distribution.
+#  * Neither the name of the zsh-syntax-highlighting contributors nor the names of its contributors
+#    may be used to endorse or promote products derived from this software without specific prior
+#    written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
+# IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
+# FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
+# IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+# -------------------------------------------------------------------------------------------------
+# -*- mode: zsh; sh-indentation: 2; indent-tabs-mode: nil; sh-basic-offset: 2; -*-
+# vim: ft=zsh sw=2 ts=2 et
+# -------------------------------------------------------------------------------------------------
+
+BUFFER=$': $(( ((42)) ))'
+
+expected_region_highlight=(
+  '1 1 builtin' # :
+  '3 15 default' # $(( ((42)) ))
+  '3 15 arithmetic-expansion' # $(( ((42)) ))
+)

highlighters/main/test-data/arithmetic-empty.zsh

@@ -0,0 +1,39 @@
+#!/usr/bin/env zsh
+# -------------------------------------------------------------------------------------------------
+# Copyright (c) 2020 zsh-syntax-highlighting contributors
+# All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without modification, are permitted
+# provided that the following conditions are met:
+#
+#  * Redistributions of source code must retain the above copyright notice, this list of conditions
+#    and the following disclaimer.
+#  * Redistributions in binary form must reproduce the above copyright notice, this list of
+#    conditions and the following disclaimer in the documentation and/or other materials provided
+#    with the distribution.
+#  * Neither the name of the zsh-syntax-highlighting contributors nor the names of its contributors
+#    may be used to endorse or promote products derived from this software without specific prior
+#    written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
+# IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
+# FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
+# IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+# -------------------------------------------------------------------------------------------------
+# -*- mode: zsh; sh-indentation: 2; indent-tabs-mode: nil; sh-basic-offset: 2; -*-
+# vim: ft=zsh sw=2 ts=2 et
+# -------------------------------------------------------------------------------------------------
+
+BUFFER=$': "foo"$(())"bar"'
+
+expected_region_highlight=(
+  '1 1 builtin' # :
+  '3 17 default' # "foo"$(())"bar"
+  '3 7 double-quoted-argument' # "foo"
+  '8 12 arithmetic-expansion' # $(())
+  '13 17 double-quoted-argument' # "bar"
+)

highlighters/main/test-data/arithmetic-hist-expn.zsh

@@ -0,0 +1,38 @@
+#!/usr/bin/env zsh
+# -------------------------------------------------------------------------------------------------
+# Copyright (c) 2020 zsh-syntax-highlighting contributors
+# All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without modification, are permitted
+# provided that the following conditions are met:
+#
+#  * Redistributions of source code must retain the above copyright notice, this list of conditions
+#    and the following disclaimer.
+#  * Redistributions in binary form must reproduce the above copyright notice, this list of
+#    conditions and the following disclaimer in the documentation and/or other materials provided
+#    with the distribution.
+#  * Neither the name of the zsh-syntax-highlighting contributors nor the names of its contributors
+#    may be used to endorse or promote products derived from this software without specific prior
+#    written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
+# IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
+# FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
+# IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+# -------------------------------------------------------------------------------------------------
+# -*- mode: zsh; sh-indentation: 2; indent-tabs-mode: nil; sh-basic-offset: 2; -*-
+# vim: ft=zsh sw=2 ts=2 et
+# -------------------------------------------------------------------------------------------------
+
+BUFFER=$': $(( \!\! ))'
+
+expected_region_highlight=(
+  '1 1 builtin' # :
+  '3 11 default' # $(( !! ))
+  '3 11 arithmetic-expansion' # $(( !! ))
+  '7 8 history-expansion "issue #713"' # !!
+)

highlighters/main/test-data/arithmetic-invalid-chars.zsh

@@ -0,0 +1,39 @@
+#!/usr/bin/env zsh
+# -------------------------------------------------------------------------------------------------
+# Copyright (c) 2020 zsh-syntax-highlighting contributors
+# All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without modification, are permitted
+# provided that the following conditions are met:
+#
+#  * Redistributions of source code must retain the above copyright notice, this list of conditions
+#    and the following disclaimer.
+#  * Redistributions in binary form must reproduce the above copyright notice, this list of
+#    conditions and the following disclaimer in the documentation and/or other materials provided
+#    with the distribution.
+#  * Neither the name of the zsh-syntax-highlighting contributors nor the names of its contributors
+#    may be used to endorse or promote products derived from this software without specific prior
+#    written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
+# IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
+# FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
+# IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+# -------------------------------------------------------------------------------------------------
+# -*- mode: zsh; sh-indentation: 2; indent-tabs-mode: nil; sh-basic-offset: 2; -*-
+# vim: ft=zsh sw=2 ts=2 et
+# -------------------------------------------------------------------------------------------------
+
+BUFFER=$': $(( 0 * 1\'\'000 ))'
+
+expected_region_highlight=(
+  '1 1 builtin' # :
+  '3 19 default' # $(( 0 * 1\'\'000 ))
+  '3 19 arithmetic-expansion' # $(( 0 * 1\'\'000 ))
+  '12 12 unknown-token' # \'
+  '13 13 unknown-token' # \'
+)

highlighters/main/test-data/arithmetic-multiplication.zsh

@@ -0,0 +1,39 @@
+#!/usr/bin/env zsh
+# -------------------------------------------------------------------------------------------------
+# Copyright (c) 2020 zsh-syntax-highlighting contributors
+# All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without modification, are permitted
+# provided that the following conditions are met:
+#
+#  * Redistributions of source code must retain the above copyright notice, this list of conditions
+#    and the following disclaimer.
+#  * Redistributions in binary form must reproduce the above copyright notice, this list of
+#    conditions and the following disclaimer in the documentation and/or other materials provided
+#    with the distribution.
+#  * Neither the name of the zsh-syntax-highlighting contributors nor the names of its contributors
+#    may be used to endorse or promote products derived from this software without specific prior
+#    written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
+# IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
+# FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
+# IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+# -------------------------------------------------------------------------------------------------
+# -*- mode: zsh; sh-indentation: 2; indent-tabs-mode: nil; sh-basic-offset: 2; -*-
+# vim: ft=zsh sw=2 ts=2 et
+# -------------------------------------------------------------------------------------------------
+
+BUFFER=$': foo*$(( 42 * 1729 ))*bar'
+
+expected_region_highlight=(
+  '1 1 builtin' # :
+  '3 26 default' # foo*$(( 42 * 1729 ))*bar
+  '6 6 globbing' # *
+  '7 22 arithmetic-expansion' # $(( 42 * 1729 ))
+  '23 23 globbing' # *
+)

highlighters/main/test-data/arithmetic-nested.zsh

@@ -0,0 +1,38 @@
+#!/usr/bin/env zsh
+# -------------------------------------------------------------------------------------------------
+# Copyright (c) 2020 zsh-syntax-highlighting contributors
+# All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without modification, are permitted
+# provided that the following conditions are met:
+#
+#  * Redistributions of source code must retain the above copyright notice, this list of conditions
+#    and the following disclaimer.
+#  * Redistributions in binary form must reproduce the above copyright notice, this list of
+#    conditions and the following disclaimer in the documentation and/or other materials provided
+#    with the distribution.
+#  * Neither the name of the zsh-syntax-highlighting contributors nor the names of its contributors
+#    may be used to endorse or promote products derived from this software without specific prior
+#    written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
+# IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
+# FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
+# IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+# -------------------------------------------------------------------------------------------------
+# -*- mode: zsh; sh-indentation: 2; indent-tabs-mode: nil; sh-basic-offset: 2; -*-
+# vim: ft=zsh sw=2 ts=2 et
+# -------------------------------------------------------------------------------------------------
+
+BUFFER=$': $(( $(( 1 + 2 )) * 3 ))'
+
+expected_region_highlight=(
+  '1 1 builtin' # :
+  '3 25 default' # $(( $(( 1 + 2 )) * 3 ))
+  '3 25 arithmetic-expansion' # $(( $(( 1 + 2 )) * 3 ))
+  '7 18 arithmetic-expansion' # $(( 1 + 2 ))
+)

highlighters/main/test-data/arithmetic-quoted.zsh

@@ -0,0 +1,38 @@
+#!/usr/bin/env zsh
+# -------------------------------------------------------------------------------------------------
+# Copyright (c) 2020 zsh-syntax-highlighting contributors
+# All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without modification, are permitted
+# provided that the following conditions are met:
+#
+#  * Redistributions of source code must retain the above copyright notice, this list of conditions
+#    and the following disclaimer.
+#  * Redistributions in binary form must reproduce the above copyright notice, this list of
+#    conditions and the following disclaimer in the documentation and/or other materials provided
+#    with the distribution.
+#  * Neither the name of the zsh-syntax-highlighting contributors nor the names of its contributors
+#    may be used to endorse or promote products derived from this software without specific prior
+#    written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
+# IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
+# FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
+# IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+# -------------------------------------------------------------------------------------------------
+# -*- mode: zsh; sh-indentation: 2; indent-tabs-mode: nil; sh-basic-offset: 2; -*-
+# vim: ft=zsh sw=2 ts=2 et
+# -------------------------------------------------------------------------------------------------
+
+BUFFER=$': "$(( 1 + 1 ))"'
+
+expected_region_highlight=(
+  '1 1 builtin' # :
+  '3 16 default' # "$(( 1 + 1 ))"
+  '3 16 double-quoted-argument' # "$(( 1 + 1 ))"
+  '4 15 arithmetic-expansion' # $(( 1 + 1 ))
+)

highlighters/main/test-data/arithmetic-unclosed.zsh

@@ -0,0 +1,37 @@
+#!/usr/bin/env zsh
+# -------------------------------------------------------------------------------------------------
+# Copyright (c) 2020 zsh-syntax-highlighting contributors
+# All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without modification, are permitted
+# provided that the following conditions are met:
+#
+#  * Redistributions of source code must retain the above copyright notice, this list of conditions
+#    and the following disclaimer.
+#  * Redistributions in binary form must reproduce the above copyright notice, this list of
+#    conditions and the following disclaimer in the documentation and/or other materials provided
+#    with the distribution.
+#  * Neither the name of the zsh-syntax-highlighting contributors nor the names of its contributors
+#    may be used to endorse or promote products derived from this software without specific prior
+#    written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
+# IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
+# FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
+# IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+# -------------------------------------------------------------------------------------------------
+# -*- mode: zsh; sh-indentation: 2; indent-tabs-mode: nil; sh-basic-offset: 2; -*-
+# vim: ft=zsh sw=2 ts=2 et
+# -------------------------------------------------------------------------------------------------
+
+BUFFER=$': $(( 1'
+
+expected_region_highlight=(
+  '1 1 builtin' # :
+  '3 7 default' # $(( 1
+  '3 7 arithmetic-expansion' # $(( 1
+)

highlighters/main/test-data/arithmetic-unfinished.zsh

@@ -0,0 +1,41 @@
+#!/usr/bin/env zsh
+# -------------------------------------------------------------------------------------------------
+# Copyright (c) 2020 zsh-syntax-highlighting contributors
+# All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without modification, are permitted
+# provided that the following conditions are met:
+#
+#  * Redistributions of source code must retain the above copyright notice, this list of conditions
+#    and the following disclaimer.
+#  * Redistributions in binary form must reproduce the above copyright notice, this list of
+#    conditions and the following disclaimer in the documentation and/or other materials provided
+#    with the distribution.
+#  * Neither the name of the zsh-syntax-highlighting contributors nor the names of its contributors
+#    may be used to endorse or promote products derived from this software without specific prior
+#    written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
+# IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
+# FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
+# IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+# -------------------------------------------------------------------------------------------------
+# -*- mode: zsh; sh-indentation: 2; indent-tabs-mode: nil; sh-basic-offset: 2; -*-
+# vim: ft=zsh sw=2 ts=2 et
+# -------------------------------------------------------------------------------------------------
+
+BUFFER=$': $(( 1729 )'
+
+expected_region_highlight=(
+  '1 1 builtin' # :
+  '3 12 default' # $(( 1729 )
+  '3 12 arithmetic-expansion' # $(( 1729 )
+)
+
+if [[ ${(z):-'$('} == '$( ' ]]; then # ignore zsh 5.0.8 bug
+  expected_region_highlight[2]='3 13 default' # $(( 1729 )
+fi

highlighters/main/test-data/array-cmdsep1.zsh

@@ -0,0 +1,45 @@
+#!/usr/bin/env zsh
+# -------------------------------------------------------------------------------------------------
+# Copyright (c) 2019 zsh-syntax-highlighting contributors
+# All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without modification, are permitted
+# provided that the following conditions are met:
+#
+#  * Redistributions of source code must retain the above copyright notice, this list of conditions
+#    and the following disclaimer.
+#  * Redistributions in binary form must reproduce the above copyright notice, this list of
+#    conditions and the following disclaimer in the documentation and/or other materials provided
+#    with the distribution.
+#  * Neither the name of the zsh-syntax-highlighting contributors nor the names of its contributors
+#    may be used to endorse or promote products derived from this software without specific prior
+#    written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
+# IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
+# FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
+# IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+# -------------------------------------------------------------------------------------------------
+# -*- mode: zsh; sh-indentation: 2; indent-tabs-mode: nil; sh-basic-offset: 2; -*-
+# vim: ft=zsh sw=2 ts=2 et
+# -------------------------------------------------------------------------------------------------
+
+BUFFER=$'a=( foo | bar )'
+bar(){}
+
+expected_region_highlight=(
+  '1 3 assign' # a=(
+  '3 3 reserved-word' # (
+  '5 7 default' # foo
+  '9 9 unknown-token' # |
+  # zsh reports a parse error at this point.  Nevertheless, we test how we
+  # highlight the remainder of $BUFFER.  Currently we recover by treating the pipe
+  # as a command separator.  That's not the only reasonable behaviour, though; if
+  # we change the behaviour, we should adjust the following expectations accordingly.
+  '11 13 function' # bar
+  '15 15 unknown-token' # )
+)

highlighters/main/test-data/array-cmdsep2.zsh

@@ -0,0 +1,41 @@
+#!/usr/bin/env zsh
+# -------------------------------------------------------------------------------------------------
+# Copyright (c) 2019 zsh-syntax-highlighting contributors
+# All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without modification, are permitted
+# provided that the following conditions are met:
+#
+#  * Redistributions of source code must retain the above copyright notice, this list of conditions
+#    and the following disclaimer.
+#  * Redistributions in binary form must reproduce the above copyright notice, this list of
+#    conditions and the following disclaimer in the documentation and/or other materials provided
+#    with the distribution.
+#  * Neither the name of the zsh-syntax-highlighting contributors nor the names of its contributors
+#    may be used to endorse or promote products derived from this software without specific prior
+#    written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
+# IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
+# FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
+# IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+# -------------------------------------------------------------------------------------------------
+# -*- mode: zsh; sh-indentation: 2; indent-tabs-mode: nil; sh-basic-offset: 2; -*-
+# vim: ft=zsh sw=2 ts=2 et
+# -------------------------------------------------------------------------------------------------
+
+BUFFER=$'a=( foo ; bar )'
+
+expected_region_highlight=(
+  '1 3 assign' # a=(
+  '3 3 reserved-word' # (
+  '5 7 default' # foo
+  '9 9 unknown-token' # ; (not commandseparator; see highlighter source code)
+  '11 13 default' # bar
+  '15 15 assign' # )
+  '15 15 reserved-word' # )
+)

highlighters/main/test-data/array-cmdsep3.zsh

@@ -0,0 +1,41 @@
+#!/usr/bin/env zsh
+# -------------------------------------------------------------------------------------------------
+# Copyright (c) 2019 zsh-syntax-highlighting contributors
+# All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without modification, are permitted
+# provided that the following conditions are met:
+#
+#  * Redistributions of source code must retain the above copyright notice, this list of conditions
+#    and the following disclaimer.
+#  * Redistributions in binary form must reproduce the above copyright notice, this list of
+#    conditions and the following disclaimer in the documentation and/or other materials provided
+#    with the distribution.
+#  * Neither the name of the zsh-syntax-highlighting contributors nor the names of its contributors
+#    may be used to endorse or promote products derived from this software without specific prior
+#    written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
+# IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
+# FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
+# IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+# -------------------------------------------------------------------------------------------------
+# -*- mode: zsh; sh-indentation: 2; indent-tabs-mode: nil; sh-basic-offset: 2; -*-
+# vim: ft=zsh sw=2 ts=2 et
+# -------------------------------------------------------------------------------------------------
+
+BUFFER=$'a=( foo \n bar )'
+
+expected_region_highlight=(
+  '1 3 assign' # a=(
+  '3 3 reserved-word' # (
+  '5 7 default' # foo
+  '9 9 commandseparator' # \n
+  '11 13 default' # bar
+  '15 15 assign' # )
+  '15 15 reserved-word' # )
+)

highlighters/main/test-data/assign-append.zsh

@@ -31,7 +31,9 @@ BUFFER='a+=(lorem ipsum)'
 
 expected_region_highlight=(
   "1 4 assign" # a+=(
+  "4 4 reserved-word" # (
   "5 9 default" # lorem
   "11 15 default" # ipsum
   "16 16 assign" # )
+  "16 16 reserved-word" # )
 )

highlighters/main/test-data/assign-array.zsh

@@ -32,8 +32,10 @@ BUFFER='(A=(hello world))'
 expected_region_highlight=(
   "1 1 reserved-word" # (
   "2 4 assign" # A=(
+  "4 4 reserved-word" # (
   "5 9 default" # hello
   "11 15 default" # world
   "16 16 assign" # )
+  "16 16 reserved-word" # )
   "17 17 reserved-word" # )
 )

highlighters/main/test-data/assign-array2.zsh

@@ -31,8 +31,10 @@ BUFFER='A=(hello world) ls'
 
 expected_region_highlight=(
   "1 3 assign" # A=(
+  "3 3 reserved-word" # (
   "4 8 default" # hello
   "10 14 default" # world
   "15 15 assign" # )
+  "15 15 reserved-word" # )
   "17 18 command" # ls
 )

highlighters/main/test-data/assign-array3.zsh

@@ -31,9 +31,11 @@ BUFFER='A=(hello world) b=42'
 
 expected_region_highlight=(
   "1 3 assign" # A=(
+  "3 3 reserved-word" # (
   "4 8 default" # hello
   "10 14 default" # world
   "15 15 assign" # )
+  "15 15 reserved-word" # )
   "17 20 assign" # b=42
   "19 20 default" # 42
 )

highlighters/main/test-data/assign-invalid-command.zsh

@@ -0,0 +1,37 @@
+#!/usr/bin/env zsh
+# -------------------------------------------------------------------------------------------------
+# Copyright (c) 2020 zsh-syntax-highlighting contributors
+# All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without modification, are permitted
+# provided that the following conditions are met:
+#
+#  * Redistributions of source code must retain the above copyright notice, this list of conditions
+#    and the following disclaimer.
+#  * Redistributions in binary form must reproduce the above copyright notice, this list of
+#    conditions and the following disclaimer in the documentation and/or other materials provided
+#    with the distribution.
+#  * Neither the name of the zsh-syntax-highlighting contributors nor the names of its contributors
+#    may be used to endorse or promote products derived from this software without specific prior
+#    written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
+# IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
+# FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
+# IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+# -------------------------------------------------------------------------------------------------
+# -*- mode: zsh; sh-indentation: 2; indent-tabs-mode: nil; sh-basic-offset: 2; -*-
+# vim: ft=zsh sw=2 ts=2 et
+# -------------------------------------------------------------------------------------------------
+
+BUFFER=$'x=y nosuchcommand'
+
+expected_region_highlight=(
+  '1 3 assign' # x=y
+  '3 3 default' # y
+  '5 17 unknown-token' # nosuchcommand
+)

highlighters/main/test-data/assign-quoted-cmdsubst.zsh

@@ -0,0 +1,45 @@
+#!/usr/bin/env zsh
+# -------------------------------------------------------------------------------------------------
+# Copyright (c) 2018 zsh-syntax-highlighting contributors
+# All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without modification, are permitted
+# provided that the following conditions are met:
+#
+#  * Redistributions of source code must retain the above copyright notice, this list of conditions
+#    and the following disclaimer.
+#  * Redistributions in binary form must reproduce the above copyright notice, this list of
+#    conditions and the following disclaimer in the documentation and/or other materials provided
+#    with the distribution.
+#  * Neither the name of the zsh-syntax-highlighting contributors nor the names of its contributors
+#    may be used to endorse or promote products derived from this software without specific prior
+#    written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
+# IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
+# FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
+# IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+# -------------------------------------------------------------------------------------------------
+# -*- mode: zsh; sh-indentation: 2; indent-tabs-mode: nil; sh-basic-offset: 2; -*-
+# vim: ft=zsh sw=2 ts=2 et
+# -------------------------------------------------------------------------------------------------
+
+BUFFER=$'x="$(ls x y z)"'
+
+expected_region_highlight=(
+  '1 15 assign' # x="$(ls x y z)"
+  '3 15 default' # "$(ls x y z)"
+  '3 3 double-quoted-argument' # "
+  '15 15 double-quoted-argument' # "
+  '4 14 command-substitution-quoted' # $(ls x y z)
+  '4 5 command-substitution-delimiter-quoted' # $(
+  '6 7 command' # ls
+  '9 9 default' # x
+  '11 11 default' # y
+  '13 13 default' # z
+  '14 14 command-substitution-delimiter-quoted' # )
+)

highlighters/main/test-data/assign.zsh

@@ -33,8 +33,10 @@ expected_region_highlight=(
   "1 3 assign" # A=1
   "3 3 default" # 1
   "5 7 assign" # b=(
+  "7 7 reserved-word" # (
   "8 12 default" # "foo"
   "8 12 double-quoted-argument" # "foo"
   "14 16 default" # bar
   "17 17 assign" # )
+  "17 17 reserved-word" # )
 )

highlighters/main/test-data/assignment-before-resword1.zsh

@@ -0,0 +1,40 @@
+#!/usr/bin/env zsh
+# -------------------------------------------------------------------------------------------------
+# Copyright (c) 2017 zsh-syntax-highlighting contributors
+# All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without modification, are permitted
+# provided that the following conditions are met:
+#
+#  * Redistributions of source code must retain the above copyright notice, this list of conditions
+#    and the following disclaimer.
+#  * Redistributions in binary form must reproduce the above copyright notice, this list of
+#    conditions and the following disclaimer in the documentation and/or other materials provided
+#    with the distribution.
+#  * Neither the name of the zsh-syntax-highlighting contributors nor the names of its contributors
+#    may be used to endorse or promote products derived from this software without specific prior
+#    written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
+# IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
+# FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
+# IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+# -------------------------------------------------------------------------------------------------
+# -*- mode: zsh; sh-indentation: 2; indent-tabs-mode: nil; sh-basic-offset: 2; -*-
+# vim: ft=zsh sw=2 ts=2 et
+# -------------------------------------------------------------------------------------------------
+
+BUFFER=$'foo=bar { :; }'
+
+expected_region_highlight=(
+  '1 7 assign' # foo=bar
+  '5 7 default' # bar
+  '9 9 unknown-token' # {
+  '11 11 builtin' # :
+  '12 12 commandseparator' # ;
+  '14 14 reserved-word' # }
+)

highlighters/main/test-data/assignment-before-resword2.zsh

@@ -0,0 +1,40 @@
+#!/usr/bin/env zsh
+# -------------------------------------------------------------------------------------------------
+# Copyright (c) 2017 zsh-syntax-highlighting contributors
+# All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without modification, are permitted
+# provided that the following conditions are met:
+#
+#  * Redistributions of source code must retain the above copyright notice, this list of conditions
+#    and the following disclaimer.
+#  * Redistributions in binary form must reproduce the above copyright notice, this list of
+#    conditions and the following disclaimer in the documentation and/or other materials provided
+#    with the distribution.
+#  * Neither the name of the zsh-syntax-highlighting contributors nor the names of its contributors
+#    may be used to endorse or promote products derived from this software without specific prior
+#    written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
+# IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
+# FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
+# IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+# -------------------------------------------------------------------------------------------------
+# -*- mode: zsh; sh-indentation: 2; indent-tabs-mode: nil; sh-basic-offset: 2; -*-
+# vim: ft=zsh sw=2 ts=2 et
+# -------------------------------------------------------------------------------------------------
+
+BUFFER=$'foo=bar ( :; )'
+
+expected_region_highlight=(
+  '1 7 assign' # foo=bar
+  '5 7 default' # bar
+  '9 9 unknown-token' # (
+  '11 11 builtin' # :
+  '12 12 commandseparator' # ;
+  '14 14 unknown-token' # )
+)

highlighters/main/test-data/assignment-before-resword3.zsh

@@ -0,0 +1,37 @@
+#!/usr/bin/env zsh
+# -------------------------------------------------------------------------------------------------
+# Copyright (c) 2017 zsh-syntax-highlighting contributors
+# All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without modification, are permitted
+# provided that the following conditions are met:
+#
+#  * Redistributions of source code must retain the above copyright notice, this list of conditions
+#    and the following disclaimer.
+#  * Redistributions in binary form must reproduce the above copyright notice, this list of
+#    conditions and the following disclaimer in the documentation and/or other materials provided
+#    with the distribution.
+#  * Neither the name of the zsh-syntax-highlighting contributors nor the names of its contributors
+#    may be used to endorse or promote products derived from this software without specific prior
+#    written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
+# IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
+# FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
+# IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+# -------------------------------------------------------------------------------------------------
+# -*- mode: zsh; sh-indentation: 2; indent-tabs-mode: nil; sh-basic-offset: 2; -*-
+# vim: ft=zsh sw=2 ts=2 et
+# -------------------------------------------------------------------------------------------------
+
+BUFFER=$'foo=bar (( foo ))'
+
+expected_region_highlight=(
+  '1 7 assign' # foo=bar
+  '5 7 default' # bar
+  '9 17 unknown-token' # (( foo ))
+)

highlighters/main/test-data/assignment-before-resword4.zsh

@@ -0,0 +1,40 @@
+#!/usr/bin/env zsh
+# -------------------------------------------------------------------------------------------------
+# Copyright (c) 2017 zsh-syntax-highlighting contributors
+# All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without modification, are permitted
+# provided that the following conditions are met:
+#
+#  * Redistributions of source code must retain the above copyright notice, this list of conditions
+#    and the following disclaimer.
+#  * Redistributions in binary form must reproduce the above copyright notice, this list of
+#    conditions and the following disclaimer in the documentation and/or other materials provided
+#    with the distribution.
+#  * Neither the name of the zsh-syntax-highlighting contributors nor the names of its contributors
+#    may be used to endorse or promote products derived from this software without specific prior
+#    written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
+# IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
+# FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
+# IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+# -------------------------------------------------------------------------------------------------
+# -*- mode: zsh; sh-indentation: 2; indent-tabs-mode: nil; sh-basic-offset: 2; -*-
+# vim: ft=zsh sw=2 ts=2 et
+# -------------------------------------------------------------------------------------------------
+
+BUFFER=$'foo=bar [[ -n foo ]]'
+
+expected_region_highlight=(
+  '1 7 assign' # foo=bar
+  '5 7 default' # bar
+  '9 10 unknown-token' # [[
+  '12 13 single-hyphen-option' # -n
+  '15 17 default' # foo
+  '19 20 reserved-word' # ]]
+)

highlighters/main/test-data/assignment-before-resword5.zsh

@@ -0,0 +1,38 @@
+#!/usr/bin/env zsh
+# -------------------------------------------------------------------------------------------------
+# Copyright (c) 2017 zsh-syntax-highlighting contributors
+# All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without modification, are permitted
+# provided that the following conditions are met:
+#
+#  * Redistributions of source code must retain the above copyright notice, this list of conditions
+#    and the following disclaimer.
+#  * Redistributions in binary form must reproduce the above copyright notice, this list of
+#    conditions and the following disclaimer in the documentation and/or other materials provided
+#    with the distribution.
+#  * Neither the name of the zsh-syntax-highlighting contributors nor the names of its contributors
+#    may be used to endorse or promote products derived from this software without specific prior
+#    written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
+# IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
+# FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
+# IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+# -------------------------------------------------------------------------------------------------
+# -*- mode: zsh; sh-indentation: 2; indent-tabs-mode: nil; sh-basic-offset: 2; -*-
+# vim: ft=zsh sw=2 ts=2 et
+# -------------------------------------------------------------------------------------------------
+
+BUFFER=$'foo=bar \! :'
+
+expected_region_highlight=(
+  '1 7 assign' # foo=bar
+  '5 7 default' # bar
+  '9 9 unknown-token' # \!
+  '11 11 builtin' # :
+)

highlighters/main/test-data/backslash-continuation2.zsh

@@ -0,0 +1,37 @@
+#!/usr/bin/env zsh
+# -------------------------------------------------------------------------------------------------
+# Copyright (c) 2020 zsh-syntax-highlighting contributors
+# All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without modification, are permitted
+# provided that the following conditions are met:
+#
+#  * Redistributions of source code must retain the above copyright notice, this list of conditions
+#    and the following disclaimer.
+#  * Redistributions in binary form must reproduce the above copyright notice, this list of
+#    conditions and the following disclaimer in the documentation and/or other materials provided
+#    with the distribution.
+#  * Neither the name of the zsh-syntax-highlighting contributors nor the names of its contributors
+#    may be used to endorse or promote products derived from this software without specific prior
+#    written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
+# IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
+# FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
+# IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+# -------------------------------------------------------------------------------------------------
+# -*- mode: zsh; sh-indentation: 2; indent-tabs-mode: nil; sh-basic-offset: 2; -*-
+# vim: ft=zsh sw=2 ts=2 et
+# -------------------------------------------------------------------------------------------------
+
+BUFFER=$'echo foo\\\nbar"baz"'
+
+expected_region_highlight=(
+  '1 4 builtin' # echo
+  '6 18 default "issue #705"' # foo\\\nbar"baz"
+  '14 18 double-quoted-argument "issue #705"' # "baz"
+)

highlighters/main/test-data/bang-assign-array.zsh

@@ -32,9 +32,11 @@ BUFFER=$'foo=(bar abaz) \! ls'
 
 expected_region_highlight=(
   '1 5 assign' # foo=(
+  '5 5 reserved-word' # (
   '6 8 default' # bar
   '10 13 default' # abaz
   '14 14 assign' # )
+  '14 14 reserved-word' # )
   '16 16 unknown-token' # \!
   '18 19 command' # ls
 )

highlighters/main/test-data/block-assignment-no-command.zsh

@@ -0,0 +1,38 @@
+#!/usr/bin/env zsh
+# -------------------------------------------------------------------------------------------------
+# Copyright (c) 2022 zsh-syntax-highlighting contributors
+# All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without modification, are permitted
+# provided that the following conditions are met:
+#
+#  * Redistributions of source code must retain the above copyright notice, this list of conditions
+#    and the following disclaimer.
+#  * Redistributions in binary form must reproduce the above copyright notice, this list of
+#    conditions and the following disclaimer in the documentation and/or other materials provided
+#    with the distribution.
+#  * Neither the name of the zsh-syntax-highlighting contributors nor the names of its contributors
+#    may be used to endorse or promote products derived from this software without specific prior
+#    written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
+# IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
+# FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
+# IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+# -------------------------------------------------------------------------------------------------
+# -*- mode: zsh; sh-indentation: 2; indent-tabs-mode: nil; sh-basic-offset: 2; -*-
+# vim: ft=zsh sw=2 ts=2 et
+# -------------------------------------------------------------------------------------------------
+
+BUFFER=$'{ a=42 }'
+
+expected_region_highlight=(
+  '1 1 reserved-word' # {
+  '3 6 assign' # a=42
+  '5 6 default' # 42
+  '8 8 reserved word "issue #854"' # }
+)

highlighters/main/test-data/cdpath-abspath.zsh

@@ -0,0 +1,38 @@
+#!/usr/bin/env zsh
+# -------------------------------------------------------------------------------------------------
+# Copyright (c) 2020 zsh-syntax-highlighting contributors
+# All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without modification, are permitted
+# provided that the following conditions are met:
+#
+#  * Redistributions of source code must retain the above copyright notice, this list of conditions
+#    and the following disclaimer.
+#  * Redistributions in binary form must reproduce the above copyright notice, this list of
+#    conditions and the following disclaimer in the documentation and/or other materials provided
+#    with the distribution.
+#  * Neither the name of the zsh-syntax-highlighting contributors nor the names of its contributors
+#    may be used to endorse or promote products derived from this software without specific prior
+#    written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
+# IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
+# FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
+# IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+# -------------------------------------------------------------------------------------------------
+# -*- mode: zsh; sh-indentation: 2; indent-tabs-mode: nil; sh-basic-offset: 2; -*-
+# vim: ft=zsh sw=2 ts=2 et
+# -------------------------------------------------------------------------------------------------
+
+cdpath=( $PWD )
+mkdir foo foo/bar
+
+BUFFER="/foo"
+
+expected_region_highlight=(
+  '1 4 unknown-token' # x (/)
+)

highlighters/main/test-data/comment-followed.zsh

@@ -28,11 +28,12 @@
 # vim: ft=zsh sw=2 ts=2 et
 # -------------------------------------------------------------------------------------------------
 
+# see alias-comment1.zsh
 setopt interactivecomments
 BUFFER=$'# foo\ntrue'
 
 expected_region_highlight=(
   '1 5 comment' # # foo
-  '6 6 commandseparator "issue #501"' # \n
+  '6 6 commandseparator' # \n
   '7 10 builtin' # true
 )

highlighters/main/test-data/dinbrack1.zsh

@@ -0,0 +1,41 @@
+#!/usr/bin/env zsh
+# -------------------------------------------------------------------------------------------------
+# Copyright (c) 2020 zsh-syntax-highlighting contributors
+# All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without modification, are permitted
+# provided that the following conditions are met:
+#
+#  * Redistributions of source code must retain the above copyright notice, this list of conditions
+#    and the following disclaimer.
+#  * Redistributions in binary form must reproduce the above copyright notice, this list of
+#    conditions and the following disclaimer in the documentation and/or other materials provided
+#    with the distribution.
+#  * Neither the name of the zsh-syntax-highlighting contributors nor the names of its contributors
+#    may be used to endorse or promote products derived from this software without specific prior
+#    written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
+# IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
+# FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
+# IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+# -------------------------------------------------------------------------------------------------
+# -*- mode: zsh; sh-indentation: 2; indent-tabs-mode: nil; sh-basic-offset: 2; -*-
+# vim: ft=zsh sw=2 ts=2 et
+# -------------------------------------------------------------------------------------------------
+
+BUFFER=$'[[ foo && bar || baz ]]'
+
+expected_region_highlight=(
+  '1 2 reserved-word' # [[
+  '4 6 default' # foo
+  '8 9 default' # &&
+  '11 13 default' # bar
+  '15 16 default' # ||
+  '18 20 default' # baz
+  '22 23 reserved-word' # ]]
+)

highlighters/main/test-data/empty-command-newline.zsh

@@ -34,6 +34,6 @@ BUFFER=$':;\n:'
 expected_region_highlight=(
   '1 1 builtin' # :
   '2 2 commandseparator' # ;
-  '3 3 commandseparator "issue #616"' # \n
+  '3 3 commandseparator' # \n
   '4 4 builtin' # :
 )

highlighters/main/test-data/equals1.zsh

@@ -0,0 +1,36 @@
+#!/usr/bin/env zsh
+# -------------------------------------------------------------------------------------------------
+# Copyright (c) 2020 zsh-syntax-highlighting contributors
+# All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without modification, are permitted
+# provided that the following conditions are met:
+#
+#  * Redistributions of source code must retain the above copyright notice, this list of conditions
+#    and the following disclaimer.
+#  * Redistributions in binary form must reproduce the above copyright notice, this list of
+#    conditions and the following disclaimer in the documentation and/or other materials provided
+#    with the distribution.
+#  * Neither the name of the zsh-syntax-highlighting contributors nor the names of its contributors
+#    may be used to endorse or promote products derived from this software without specific prior
+#    written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
+# IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
+# FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
+# IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+# -------------------------------------------------------------------------------------------------
+# -*- mode: zsh; sh-indentation: 2; indent-tabs-mode: nil; sh-basic-offset: 2; -*-
+# vim: ft=zsh sw=2 ts=2 et
+# -------------------------------------------------------------------------------------------------
+
+BUFFER=$': =ls'
+
+expected_region_highlight=(
+  '1 1 builtin' # :
+  '3 5 path' # =ls
+)

highlighters/main/test-data/equals2.zsh

@@ -0,0 +1,38 @@
+#!/usr/bin/env zsh
+# -------------------------------------------------------------------------------------------------
+# Copyright (c) 2020 zsh-syntax-highlighting contributors
+# All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without modification, are permitted
+# provided that the following conditions are met:
+#
+#  * Redistributions of source code must retain the above copyright notice, this list of conditions
+#    and the following disclaimer.
+#  * Redistributions in binary form must reproduce the above copyright notice, this list of
+#    conditions and the following disclaimer in the documentation and/or other materials provided
+#    with the distribution.
+#  * Neither the name of the zsh-syntax-highlighting contributors nor the names of its contributors
+#    may be used to endorse or promote products derived from this software without specific prior
+#    written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
+# IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
+# FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
+# IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+# -------------------------------------------------------------------------------------------------
+# -*- mode: zsh; sh-indentation: 2; indent-tabs-mode: nil; sh-basic-offset: 2; -*-
+# vim: ft=zsh sw=2 ts=2 et
+# -------------------------------------------------------------------------------------------------
+
+unsetopt equals
+
+BUFFER=$': =nosuchcommand'
+
+expected_region_highlight=(
+  '1 1 builtin' # :
+  '3 16 default' # =nosuchcommand
+)

highlighters/main/test-data/equals3.zsh

@@ -0,0 +1,36 @@
+#!/usr/bin/env zsh
+# -------------------------------------------------------------------------------------------------
+# Copyright (c) 2020 zsh-syntax-highlighting contributors
+# All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without modification, are permitted
+# provided that the following conditions are met:
+#
+#  * Redistributions of source code must retain the above copyright notice, this list of conditions
+#    and the following disclaimer.
+#  * Redistributions in binary form must reproduce the above copyright notice, this list of
+#    conditions and the following disclaimer in the documentation and/or other materials provided
+#    with the distribution.
+#  * Neither the name of the zsh-syntax-highlighting contributors nor the names of its contributors
+#    may be used to endorse or promote products derived from this software without specific prior
+#    written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
+# IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
+# FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
+# IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+# -------------------------------------------------------------------------------------------------
+# -*- mode: zsh; sh-indentation: 2; indent-tabs-mode: nil; sh-basic-offset: 2; -*-
+# vim: ft=zsh sw=2 ts=2 et
+# -------------------------------------------------------------------------------------------------
+
+BUFFER=$': =nosuchcommand'
+
+expected_region_highlight=(
+  '1 1 builtin' # :
+  '3 16 unknown-token' # =nosuchcommand
+)

highlighters/main/test-data/equals4.zsh

@@ -0,0 +1,36 @@
+#!/usr/bin/env zsh
+# -------------------------------------------------------------------------------------------------
+# Copyright (c) 2020 zsh-syntax-highlighting contributors
+# All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without modification, are permitted
+# provided that the following conditions are met:
+#
+#  * Redistributions of source code must retain the above copyright notice, this list of conditions
+#    and the following disclaimer.
+#  * Redistributions in binary form must reproduce the above copyright notice, this list of
+#    conditions and the following disclaimer in the documentation and/or other materials provided
+#    with the distribution.
+#  * Neither the name of the zsh-syntax-highlighting contributors nor the names of its contributors
+#    may be used to endorse or promote products derived from this software without specific prior
+#    written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
+# IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
+# FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
+# IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+# -------------------------------------------------------------------------------------------------
+# -*- mode: zsh; sh-indentation: 2; indent-tabs-mode: nil; sh-basic-offset: 2; -*-
+# vim: ft=zsh sw=2 ts=2 et
+# -------------------------------------------------------------------------------------------------
+
+BUFFER=$': ='
+
+expected_region_highlight=(
+  '1 1 builtin' # :
+  '3 3 default' # =
+)

highlighters/main/test-data/fd-target-not-filename.zsh

@@ -0,0 +1,40 @@
+#!/usr/bin/env zsh
+# -------------------------------------------------------------------------------------------------
+# Copyright (c) 2020 zsh-syntax-highlighting contributors
+# All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without modification, are permitted
+# provided that the following conditions are met:
+#
+#  * Redistributions of source code must retain the above copyright notice, this list of conditions
+#    and the following disclaimer.
+#  * Redistributions in binary form must reproduce the above copyright notice, this list of
+#    conditions and the following disclaimer in the documentation and/or other materials provided
+#    with the distribution.
+#  * Neither the name of the zsh-syntax-highlighting contributors nor the names of its contributors
+#    may be used to endorse or promote products derived from this software without specific prior
+#    written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
+# IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
+# FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
+# IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+# -------------------------------------------------------------------------------------------------
+# -*- mode: zsh; sh-indentation: 2; indent-tabs-mode: nil; sh-basic-offset: 2; -*-
+# vim: ft=zsh sw=2 ts=2 et
+# -------------------------------------------------------------------------------------------------
+
+touch 2
+
+BUFFER=$'echo foo>&2'
+
+expected_region_highlight=(
+  '1 4 builtin' # echo
+  '6 8 default' # foo
+  '9 10 redirection' # >&
+  '11 11 numeric-fd' # 2 (not path)
+)

highlighters/main/test-data/global-alias1.zsh

@@ -0,0 +1,38 @@
+#!/usr/bin/env zsh
+# -------------------------------------------------------------------------------------------------
+# Copyright (c) 2020 zsh-syntax-highlighting contributors
+# All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without modification, are permitted
+# provided that the following conditions are met:
+#
+#  * Redistributions of source code must retain the above copyright notice, this list of conditions
+#    and the following disclaimer.
+#  * Redistributions in binary form must reproduce the above copyright notice, this list of
+#    conditions and the following disclaimer in the documentation and/or other materials provided
+#    with the distribution.
+#  * Neither the name of the zsh-syntax-highlighting contributors nor the names of its contributors
+#    may be used to endorse or promote products derived from this software without specific prior
+#    written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
+# IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
+# FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
+# IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+# -------------------------------------------------------------------------------------------------
+# -*- mode: zsh; sh-indentation: 2; indent-tabs-mode: nil; sh-basic-offset: 2; -*-
+# vim: ft=zsh sw=2 ts=2 et
+# -------------------------------------------------------------------------------------------------
+
+alias -g foo=bar
+
+BUFFER=$'foo foo'
+
+expected_region_highlight=(
+  '1 3 global-alias' # foo
+  '5 7 global-alias' # foo
+)

highlighters/main/test-data/history-double-quoted-followed.zsh

@@ -0,0 +1,39 @@
+#!/usr/bin/env zsh
+# -------------------------------------------------------------------------------------------------
+# Copyright (c) 2020 zsh-syntax-highlighting contributors
+# All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without modification, are permitted
+# provided that the following conditions are met:
+#
+#  * Redistributions of source code must retain the above copyright notice, this list of conditions
+#    and the following disclaimer.
+#  * Redistributions in binary form must reproduce the above copyright notice, this list of
+#    conditions and the following disclaimer in the documentation and/or other materials provided
+#    with the distribution.
+#  * Neither the name of the zsh-syntax-highlighting contributors nor the names of its contributors
+#    may be used to endorse or promote products derived from this software without specific prior
+#    written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
+# IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
+# FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
+# IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+# -------------------------------------------------------------------------------------------------
+# -*- mode: zsh; sh-indentation: 2; indent-tabs-mode: nil; sh-basic-offset: 2; -*-
+# vim: ft=zsh sw=2 ts=2 et
+# -------------------------------------------------------------------------------------------------
+
+BUFFER=': !!= "!!="'
+
+expected_region_highlight=(
+  '1 1 builtin' # :
+  '3 4 history-expansion "issue #713"' # !!
+  '7 11 default' # "!!="
+  '7 11 double-quoted-argument' # "!!="
+  '8 9 history-expansion "issue #713' # !!
+)

highlighters/main/test-data/meta-no-eval1.zsh

@@ -0,0 +1,49 @@
+#!/usr/bin/env zsh
+# -------------------------------------------------------------------------------------------------
+# Copyright (c) 2020 zsh-syntax-highlighting contributors
+# All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without modification, are permitted
+# provided that the following conditions are met:
+#
+#  * Redistributions of source code must retain the above copyright notice, this list of conditions
+#    and the following disclaimer.
+#  * Redistributions in binary form must reproduce the above copyright notice, this list of
+#    conditions and the following disclaimer in the documentation and/or other materials provided
+#    with the distribution.
+#  * Neither the name of the zsh-syntax-highlighting contributors nor the names of its contributors
+#    may be used to endorse or promote products derived from this software without specific prior
+#    written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
+# IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
+# FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
+# IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+# -------------------------------------------------------------------------------------------------
+# -*- mode: zsh; sh-indentation: 2; indent-tabs-mode: nil; sh-basic-offset: 2; -*-
+# vim: ft=zsh sw=2 ts=2 et
+# -------------------------------------------------------------------------------------------------
+
+BUFFER=$': $(kill -9 $$) ${:-$(kill -9 $$)}'
+
+expected_region_highlight=(
+  '1 1 builtin' # :
+  '3 15 default' # $(kill -9 $$)
+  '3 15 command-substitution-unquoted' # $(kill -9 $$)
+  '3 4 command-substitution-delimiter-unquoted' # $(
+  '5 8 builtin' # kill
+  '10 11 single-hyphen-option' # -9
+  '13 14 default' # $$
+  '15 15 command-substitution-delimiter-unquoted' # )
+  '17 34 default' # ${:-$(kill -9 $$)}
+  '21 33 command-substitution-unquoted' # $(kill -9 $$)
+  '21 22 command-substitution-delimiter-unquoted' # $(
+  '23 26 builtin' # kill
+  '28 29 single-hyphen-option' # -9
+  '31 32 default' # $$
+  '33 33 command-substitution-delimiter-unquoted' # )
+)

highlighters/main/test-data/meta-no-eval2.zsh

@@ -0,0 +1,40 @@
+#!/usr/bin/env zsh
+# -------------------------------------------------------------------------------------------------
+# Copyright (c) 2020 zsh-syntax-highlighting contributors
+# All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without modification, are permitted
+# provided that the following conditions are met:
+#
+#  * Redistributions of source code must retain the above copyright notice, this list of conditions
+#    and the following disclaimer.
+#  * Redistributions in binary form must reproduce the above copyright notice, this list of
+#    conditions and the following disclaimer in the documentation and/or other materials provided
+#    with the distribution.
+#  * Neither the name of the zsh-syntax-highlighting contributors nor the names of its contributors
+#    may be used to endorse or promote products derived from this software without specific prior
+#    written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
+# IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
+# FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
+# IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+# -------------------------------------------------------------------------------------------------
+# -*- mode: zsh; sh-indentation: 2; indent-tabs-mode: nil; sh-basic-offset: 2; -*-
+# vim: ft=zsh sw=2 ts=2 et
+# -------------------------------------------------------------------------------------------------
+
+# We aren't testing how this is highlighted; we're testing that it's not
+# evaluated.  If it gets evaluated, the test suite will die.
+BUFFER=$': /(e*exit 42*)'
+
+expected_region_highlight=(
+  '1 1 builtin' # :
+  '3 15 default' # /(e*exit 42*)
+  '6 6 globbing' # *
+  '14 14 globbing' # *
+)

highlighters/main/test-data/multiline-array-assignment1.zsh

@@ -32,8 +32,10 @@ BUFFER=$'foo=(\nbar) env'
 
 expected_region_highlight=(
   '1 5 assign' # foo=(
+  '5 5 reserved-word' # (
   '6 6 commandseparator' # \n
   '7 9 default' # bar
   '10 10 assign' # )
-  '12 14 command' # env
+  '10 10 reserved-word' # )
+  '12 14 precommand' # env
 )

highlighters/main/test-data/multios-negates-globbing.zsh

@@ -0,0 +1,39 @@
+#!/usr/bin/env zsh
+# -------------------------------------------------------------------------------------------------
+# Copyright (c) 2018 zsh-syntax-highlighting contributors
+# All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without modification, are permitted
+# provided that the following conditions are met:
+#
+#  * Redistributions of source code must retain the above copyright notice, this list of conditions
+#    and the following disclaimer.
+#  * Redistributions in binary form must reproduce the above copyright notice, this list of
+#    conditions and the following disclaimer in the documentation and/or other materials provided
+#    with the distribution.
+#  * Neither the name of the zsh-syntax-highlighting contributors nor the names of its contributors
+#    may be used to endorse or promote products derived from this software without specific prior
+#    written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
+# IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
+# FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
+# IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+# -------------------------------------------------------------------------------------------------
+# -*- mode: zsh; sh-indentation: 2; indent-tabs-mode: nil; sh-basic-offset: 2; -*-
+# vim: ft=zsh sw=2 ts=2 et
+# -------------------------------------------------------------------------------------------------
+
+unsetopt multios
+
+BUFFER=$'cat < *'
+
+expected_region_highlight=(
+  '1 3 command' # cat
+  '5 5 redirection' # <
+  '7 7 default' # * - not globbing
+)

highlighters/main/test-data/multios-negates-globbing2.zsh

@@ -0,0 +1,38 @@
+#!/usr/bin/env zsh
+# -------------------------------------------------------------------------------------------------
+# Copyright (c) 2018 zsh-syntax-highlighting contributors
+# All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without modification, are permitted
+# provided that the following conditions are met:
+#
+#  * Redistributions of source code must retain the above copyright notice, this list of conditions
+#    and the following disclaimer.
+#  * Redistributions in binary form must reproduce the above copyright notice, this list of
+#    conditions and the following disclaimer in the documentation and/or other materials provided
+#    with the distribution.
+#  * Neither the name of the zsh-syntax-highlighting contributors nor the names of its contributors
+#    may be used to endorse or promote products derived from this software without specific prior
+#    written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
+# IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
+# FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
+# IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+# -------------------------------------------------------------------------------------------------
+# -*- mode: zsh; sh-indentation: 2; indent-tabs-mode: nil; sh-basic-offset: 2; -*-
+# vim: ft=zsh sw=2 ts=2 et
+# -------------------------------------------------------------------------------------------------
+
+BUFFER=$'cat < *'
+
+expected_region_highlight=(
+  '1 3 command' # cat
+  '5 5 redirection' # <
+  '7 7 default' # *
+  '7 7 globbing' # *
+)

highlighters/main/test-data/noglob-always.zsh

@@ -39,6 +39,7 @@ expected_region_highlight=(
   '19 24 reserved-word' # always
   '26 26 reserved-word' # {
   '28 31 builtin' # echo
-  '33 33 globbing "issue #577"' # *
+  '33 33 default' # *
+  '33 33 globbing' # *
   '35 35 reserved-word' # }
 )

highlighters/main/test-data/null-exec.zsh

@@ -34,5 +34,5 @@ expected_region_highlight=(
   '1 4 precommand' # exec
   '6 6 redirection' # >
   '7 15 path' # /dev/null
-  '16 16 commandseparator "issue #676"' # ;
+  '16 16 commandseparator' # ;
 )

highlighters/main/test-data/null-exec2-printenv.zsh

@@ -0,0 +1,38 @@
+#!/usr/bin/env zsh
+# -------------------------------------------------------------------------------------------------
+# Copyright (c) 2021 zsh-syntax-highlighting contributors
+# All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without modification, are permitted
+# provided that the following conditions are met:
+#
+#  * Redistributions of source code must retain the above copyright notice, this list of conditions
+#    and the following disclaimer.
+#  * Redistributions in binary form must reproduce the above copyright notice, this list of
+#    conditions and the following disclaimer in the documentation and/or other materials provided
+#    with the distribution.
+#  * Neither the name of the zsh-syntax-highlighting contributors nor the names of its contributors
+#    may be used to endorse or promote products derived from this software without specific prior
+#    written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
+# IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
+# FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
+# IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+# -------------------------------------------------------------------------------------------------
+# -*- mode: zsh; sh-indentation: 2; indent-tabs-mode: nil; sh-basic-offset: 2; -*-
+# vim: ft=zsh sw=2 ts=2 et
+# -------------------------------------------------------------------------------------------------
+
+BUFFER=$'env | grep $needle'
+
+expected_region_highlight=(
+  '1 3 precommand' # env
+  '5 5 commandseparator' # |
+  '7 10 command' # grep
+  '12 18 default' # $needle
+)

highlighters/main/test-data/opt-shwordsplit1.zsh

@@ -0,0 +1,40 @@
+#!/usr/bin/env zsh
+# -------------------------------------------------------------------------------------------------
+# Copyright (c) 2020 zsh-syntax-highlighting contributors
+# All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without modification, are permitted
+# provided that the following conditions are met:
+#
+#  * Redistributions of source code must retain the above copyright notice, this list of conditions
+#    and the following disclaimer.
+#  * Redistributions in binary form must reproduce the above copyright notice, this list of
+#    conditions and the following disclaimer in the documentation and/or other materials provided
+#    with the distribution.
+#  * Neither the name of the zsh-syntax-highlighting contributors nor the names of its contributors
+#    may be used to endorse or promote products derived from this software without specific prior
+#    written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
+# IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
+# FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
+# IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+# -------------------------------------------------------------------------------------------------
+# -*- mode: zsh; sh-indentation: 2; indent-tabs-mode: nil; sh-basic-offset: 2; -*-
+# vim: ft=zsh sw=2 ts=2 et
+# -------------------------------------------------------------------------------------------------
+
+setopt shwordsplit
+local EDITOR='ed -s'
+
+ed() { command ed "$@" }
+
+BUFFER=$'$EDITOR'
+
+expected_region_highlight=(
+  '1 7 function' # $EDITOR
+)

highlighters/main/test-data/optimized-cmdsubst-input.zsh

@@ -0,0 +1,43 @@
+#!/usr/bin/env zsh
+# -------------------------------------------------------------------------------------------------
+# Copyright (c) 2018 zsh-syntax-highlighting contributors
+# All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without modification, are permitted
+# provided that the following conditions are met:
+#
+#  * Redistributions of source code must retain the above copyright notice, this list of conditions
+#    and the following disclaimer.
+#  * Redistributions in binary form must reproduce the above copyright notice, this list of
+#    conditions and the following disclaimer in the documentation and/or other materials provided
+#    with the distribution.
+#  * Neither the name of the zsh-syntax-highlighting contributors nor the names of its contributors
+#    may be used to endorse or promote products derived from this software without specific prior
+#    written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
+# IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
+# FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
+# IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+# -------------------------------------------------------------------------------------------------
+# -*- mode: zsh; sh-indentation: 2; indent-tabs-mode: nil; sh-basic-offset: 2; -*-
+# vim: ft=zsh sw=2 ts=2 et
+# -------------------------------------------------------------------------------------------------
+
+# See getoutput() and getoutputfile() in zsh's C source code.
+
+BUFFER=$': $(<*)'
+
+expected_region_highlight=(
+  '1 1 builtin' # :
+  '3 7 default' # $(<*)
+  '3 7 command-substitution-unquoted' # $(<*)
+  '3 4 command-substitution-delimiter-unquoted' # $(
+  '5 5 redirection' # <
+  '6 6 default' # * - not globbing!
+  '7 7 command-substitution-delimiter-unquoted' # )
+)

highlighters/main/test-data/param-positional-in-array-append.zsh

@@ -0,0 +1,39 @@
+#!/usr/bin/env zsh
+# -------------------------------------------------------------------------------------------------
+# Copyright (c) 2020 zsh-syntax-highlighting contributors
+# All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without modification, are permitted
+# provided that the following conditions are met:
+#
+#  * Redistributions of source code must retain the above copyright notice, this list of conditions
+#    and the following disclaimer.
+#  * Redistributions in binary form must reproduce the above copyright notice, this list of
+#    conditions and the following disclaimer in the documentation and/or other materials provided
+#    with the distribution.
+#  * Neither the name of the zsh-syntax-highlighting contributors nor the names of its contributors
+#    may be used to endorse or promote products derived from this software without specific prior
+#    written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
+# IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
+# FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
+# IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+# -------------------------------------------------------------------------------------------------
+# -*- mode: zsh; sh-indentation: 2; indent-tabs-mode: nil; sh-basic-offset: 2; -*-
+# vim: ft=zsh sw=2 ts=2 et
+# -------------------------------------------------------------------------------------------------
+
+# This used to be an infinite loop.
+
+BUFFER=$'l+=( $1'
+
+expected_region_highlight=(
+  '1 4 assign' # l+=(
+  '4 4 reserved-word' # (
+  '6 7 default' # $1
+)

highlighters/main/test-data/parameter-elision-command-word.zsh

@@ -0,0 +1,36 @@
+#!/usr/bin/env zsh
+# -------------------------------------------------------------------------------------------------
+# Copyright (c) 2020 zsh-syntax-highlighting contributors
+# All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without modification, are permitted
+# provided that the following conditions are met:
+#
+#  * Redistributions of source code must retain the above copyright notice, this list of conditions
+#    and the following disclaimer.
+#  * Redistributions in binary form must reproduce the above copyright notice, this list of
+#    conditions and the following disclaimer in the documentation and/or other materials provided
+#    with the distribution.
+#  * Neither the name of the zsh-syntax-highlighting contributors nor the names of its contributors
+#    may be used to endorse or promote products derived from this software without specific prior
+#    written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
+# IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
+# FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
+# IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+# -------------------------------------------------------------------------------------------------
+# -*- mode: zsh; sh-indentation: 2; indent-tabs-mode: nil; sh-basic-offset: 2; -*-
+# vim: ft=zsh sw=2 ts=2 et
+# -------------------------------------------------------------------------------------------------
+
+BUFFER='$x ls'
+
+expected_region_highlight=(
+  '1 2 comment' # $x
+  '4 5 command' # ls
+)

highlighters/main/test-data/parameter-expansion-shwordsplit.zsh

@@ -0,0 +1,38 @@
+#!/usr/bin/env zsh
+# -------------------------------------------------------------------------------------------------
+# Copyright (c) 2021 zsh-syntax-highlighting contributors
+# All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without modification, are permitted
+# provided that the following conditions are met:
+#
+#  * Redistributions of source code must retain the above copyright notice, this list of conditions
+#    and the following disclaimer.
+#  * Redistributions in binary form must reproduce the above copyright notice, this list of
+#    conditions and the following disclaimer in the documentation and/or other materials provided
+#    with the distribution.
+#  * Neither the name of the zsh-syntax-highlighting contributors nor the names of its contributors
+#    may be used to endorse or promote products derived from this software without specific prior
+#    written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
+# IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
+# FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
+# IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+# -------------------------------------------------------------------------------------------------
+# -*- mode: zsh; sh-indentation: 2; indent-tabs-mode: nil; sh-basic-offset: 2; -*-
+# vim: ft=zsh sw=2 ts=2 et
+# -------------------------------------------------------------------------------------------------
+
+setopt sh_word_split
+local foo='echo foo'
+
+BUFFER='$foo'
+
+expected_region_highlight=(
+  '1 4 builtin' # $foo
+)

highlighters/main/test-data/parameter-to-global-alias.zsh

@@ -0,0 +1,42 @@
+#!/usr/bin/env zsh
+# -------------------------------------------------------------------------------------------------
+# Copyright (c) 2020 zsh-syntax-highlighting contributors
+# All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without modification, are permitted
+# provided that the following conditions are met:
+#
+#  * Redistributions of source code must retain the above copyright notice, this list of conditions
+#    and the following disclaimer.
+#  * Redistributions in binary form must reproduce the above copyright notice, this list of
+#    conditions and the following disclaimer in the documentation and/or other materials provided
+#    with the distribution.
+#  * Neither the name of the zsh-syntax-highlighting contributors nor the names of its contributors
+#    may be used to endorse or promote products derived from this software without specific prior
+#    written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
+# IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
+# FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
+# IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+# -------------------------------------------------------------------------------------------------
+# -*- mode: zsh; sh-indentation: 2; indent-tabs-mode: nil; sh-basic-offset: 2; -*-
+# vim: ft=zsh sw=2 ts=2 et
+# -------------------------------------------------------------------------------------------------
+
+if type global_alias >/dev/null; then
+  skip_test="Test is written on the assumption that 'global_alias' is not a valid command name, but that assumption does not hold"
+  return 0
+fi
+alias -g global_alias=y
+local s=global_alias
+
+BUFFER=$'$s'
+
+expected_region_highlight=(
+  '1 2 unknown-token' # $s
+)

highlighters/main/test-data/path-dollared-word3.zsh

@@ -34,7 +34,7 @@
 BUFFER='$PWD; ${PWD}'
 
 expected_region_highlight=(
-  "1 4 path" # $PWD
+  "1 4 unknown-token" # $PWD (without AUTO_CD)
   "5 5 commandseparator" # ;
-  "7 12 path" # ${PWD}
+  "7 12 path_prefix" # ${PWD}
 )

highlighters/main/test-data/path-dollared-word3b.zsh

@@ -0,0 +1,38 @@
+#!/usr/bin/env zsh
+# -------------------------------------------------------------------------------------------------
+# Copyright (c) 2020 zsh-syntax-highlighting contributors
+# All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without modification, are permitted
+# provided that the following conditions are met:
+#
+#  * Redistributions of source code must retain the above copyright notice, this list of conditions
+#    and the following disclaimer.
+#  * Redistributions in binary form must reproduce the above copyright notice, this list of
+#    conditions and the following disclaimer in the documentation and/or other materials provided
+#    with the distribution.
+#  * Neither the name of the zsh-syntax-highlighting contributors nor the names of its contributors
+#    may be used to endorse or promote products derived from this software without specific prior
+#    written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
+# IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
+# FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
+# IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+# -------------------------------------------------------------------------------------------------
+# -*- mode: zsh; sh-indentation: 2; indent-tabs-mode: nil; sh-basic-offset: 2; -*-
+# vim: ft=zsh sw=2 ts=2 et
+# -------------------------------------------------------------------------------------------------
+
+setopt autocd
+BUFFER=$'$PWD; ${PWD}'
+
+expected_region_highlight=(
+  '1 4 autodirectory' # $PWD
+  '5 5 commandseparator' # ;
+  '7 12 autodirectory' # ${PWD}
+)

highlighters/main/test-data/path-mixed-quoting.zsh

@@ -0,0 +1,39 @@
+#!/usr/bin/env zsh
+# -------------------------------------------------------------------------------------------------
+# Copyright (c) 2020 zsh-syntax-highlighting contributors
+# All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without modification, are permitted
+# provided that the following conditions are met:
+#
+#  * Redistributions of source code must retain the above copyright notice, this list of conditions
+#    and the following disclaimer.
+#  * Redistributions in binary form must reproduce the above copyright notice, this list of
+#    conditions and the following disclaimer in the documentation and/or other materials provided
+#    with the distribution.
+#  * Neither the name of the zsh-syntax-highlighting contributors nor the names of its contributors
+#    may be used to endorse or promote products derived from this software without specific prior
+#    written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
+# IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
+# FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
+# IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+# -------------------------------------------------------------------------------------------------
+# -*- mode: zsh; sh-indentation: 2; indent-tabs-mode: nil; sh-basic-offset: 2; -*-
+# vim: ft=zsh sw=2 ts=2 et
+# -------------------------------------------------------------------------------------------------
+
+touch foo
+
+BUFFER=$': \'f\'oo'
+
+expected_region_highlight=(
+  '1 1 builtin' # :
+  '3 7 path' # \'f\'oo
+  '3 5 single-quoted-argument' # \'f\'
+)

highlighters/main/test-data/path_prefix3.zsh

@@ -30,7 +30,7 @@
 # Assumes that '/bin/sh' exists and '/bin/s' does not exist.
 # Related to path_prefix.zsh
 
-PREBUFFER='ls \'
+PREBUFFER=$'ls \\\n'
 BUFFER='/bin/s'
 
 expected_region_highlight=(

highlighters/main/test-data/plain-file-in-command-position.zsh

@@ -0,0 +1,39 @@
+#!/usr/bin/env zsh
+# -------------------------------------------------------------------------------------------------
+# Copyright (c) 2020 zsh-syntax-highlighting contributors
+# All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without modification, are permitted
+# provided that the following conditions are met:
+#
+#  * Redistributions of source code must retain the above copyright notice, this list of conditions
+#    and the following disclaimer.
+#  * Redistributions in binary form must reproduce the above copyright notice, this list of
+#    conditions and the following disclaimer in the documentation and/or other materials provided
+#    with the distribution.
+#  * Neither the name of the zsh-syntax-highlighting contributors nor the names of its contributors
+#    may be used to endorse or promote products derived from this software without specific prior
+#    written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
+# IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
+# FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
+# IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+# -------------------------------------------------------------------------------------------------
+# -*- mode: zsh; sh-indentation: 2; indent-tabs-mode: nil; sh-basic-offset: 2; -*-
+# vim: ft=zsh sw=2 ts=2 et
+# -------------------------------------------------------------------------------------------------
+
+touch foo
+chmod -x foo
+BUFFER=$'./foo; ./foo'
+
+expected_region_highlight=(
+  '1 5 unknown-token' # ./foo (in middle)
+  '6 6 commandseparator' # ;
+  '8 12 unknown-token' # ./foo (at end)
+)

highlighters/main/test-data/precommand-killing1.zsh

@@ -29,11 +29,12 @@
 # -------------------------------------------------------------------------------------------------
 
 hash sudo=false
+touch foo
 
-BUFFER='sudo -e /etc/passwd'
+BUFFER='sudo -e ./foo'
 
 expected_region_highlight=(
   '1 4 precommand' # sudo
   '6 7 single-hyphen-option' # -e
-  '9 19 path' # /etc/passwd
+  '9 13 path' # ./foo
 )

highlighters/main/test-data/precommand-killing2.zsh

@@ -35,5 +35,5 @@ BUFFER='sudo -e /does/not/exist'
 expected_region_highlight=(
   '1 4 precommand' # sudo
   '6 7 single-hyphen-option' # -e
-  '9 23 normal "issue #678"' # /does/not/exist
+  '9 23 default' # /does/not/exist
 )

highlighters/main/test-data/precommand-then-assignment.zsh

@@ -0,0 +1,37 @@
+#!/usr/bin/env zsh
+# -------------------------------------------------------------------------------------------------
+# Copyright (c) 2019 zsh-syntax-highlighting contributors
+# All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without modification, are permitted
+# provided that the following conditions are met:
+#
+#  * Redistributions of source code must retain the above copyright notice, this list of conditions
+#    and the following disclaimer.
+#  * Redistributions in binary form must reproduce the above copyright notice, this list of
+#    conditions and the following disclaimer in the documentation and/or other materials provided
+#    with the distribution.
+#  * Neither the name of the zsh-syntax-highlighting contributors nor the names of its contributors
+#    may be used to endorse or promote products derived from this software without specific prior
+#    written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
+# IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
+# FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
+# IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+# -------------------------------------------------------------------------------------------------
+# -*- mode: zsh; sh-indentation: 2; indent-tabs-mode: nil; sh-basic-offset: 2; -*-
+# vim: ft=zsh sw=2 ts=2 et
+# -------------------------------------------------------------------------------------------------
+
+BUFFER=$'nice x=y ls'
+
+expected_region_highlight=(
+  '1 4 precommand' # nice
+  '6 8 unknown-token "issue #641.5"' # x=y
+  '10 11 default "issue #641.5 (fallout)"' # ls
+)