Big refactoring.

* Don't override user defined styles
* Better modularisation of highlighters
* Allow to define which highlighters are activated
* Allow to define the order in which they are defined
* Minor performance optimizations
* Fixed some variables leak
* Improve documentation
* Brackets highlighter: use ZSH_HIGHLIGHT_STYLES instead of a specific array

tests/test-perfs.zsh

@@ -29,11 +29,32 @@
 # -------------------------------------------------------------------------------------------------
 
 
-# Load the main script.
-. $(dirname $0)/../zsh-syntax-highlighting.zsh
+# Check an highlighter was given as argument.
+[[ -n "$1" ]] || {
+  echo "You must provide the name of a valid highlighter as argument." >&2
+  exit 1
+}
 
-# Process each test data file in data/.
-for data_file in $(dirname $0)/data/*.zsh; do
+# Check the highlighter is valid.
+[[ -f ${0:h:h}/highlighters/$1/$1-highlighter.zsh ]] || {
+  echo "Could not find highlighter '$1'." >&2
+  exit 1
+}
+
+# Check the highlighter has test data.
+[[ -d ${0:h:h}/highlighters/$1/test-data ]] || {
+  echo "Highlighter '$1' has no test data." >&2
+  exit 1
+}
+
+# Load the main script.
+. ${0:h:h}/zsh-syntax-highlighting.zsh
+
+# Activate the highlighter.
+ZSH_HIGHLIGHT_HIGHLIGHTERS=($1)
+
+# Process each test data file in test data directory.
+for data_file in ${0:h:h}/highlighters/$1/test-data/*; do
 
   # Load the data and prepare checking it.
   BUFFER=
@@ -45,9 +66,9 @@ for data_file in $(dirname $0)/data/*.zsh; do
     echo "KO\n   - 'BUFFER' is not declared or blank."
   else
 
-    # Measure the time taken by _zsh_highlight-zle-buffer.
+    # Measure the time taken by _zsh_highlight.
     TIMEFMT="%*Es"
-    time ( BUFFER="$BUFFER" && _zsh_highlight-zle-buffer)
+    time ( BUFFER="$BUFFER" && _zsh_highlight)
 
   fi