main: Add arithmetic substitution highlighting

Closes #607 #649 #704
2020-03-18 23:31:11 -05:00
parent f8b1470314
commit a238647df9
6 changed files with 121 additions and 27 deletions
--- a/docs/highlighters/main.md
+++ b/docs/highlighters/main.md
@@ -42,6 +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` ``)