stonewareslord/zsh-syntax-highlighting
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zsh-syntax-highlighting/highlighters/main
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Sebastian Gniazdowski 3cb58fd7d7 Optimization: -1 is extra computation of string length internally 
./parse.zsh "zplugin.zsh" > out_norm.txt 106,17s user 7,84s system 98% cpu 1:55,85 total

./parse.zsh "zplugin.zsh" > out_opt.txt 51,91s user 7,44s system 99% cpu 59,912 total

% wc -l zplugin.zsh
3188 zplugin.zsh
2016-02-12 08:31:14 +01:00
..
test-data aliases: Highlight aliases with '=' in their LHS as error. (Part of issue #263.) 2016-01-11 15:27:48 +00:00
main-highlighter.zsh Optimization: -1 is extra computation of string length internally 2016-02-12 08:31:14 +01:00
README.md docs: Fix broken symlinks 2015-11-24 00:40:09 -06:00

README.md

zsh-syntax-highlighting / highlighters / main

This is the main highlighter, that highlights:

  • Commands
  • Options
  • Arguments
  • Paths
  • Strings

This highlighter is active by default.

How to tweak it

This highlighter defines the following styles:

  • unknown-token - unknown tokens / errors
  • reserved-word - shell reserved words (if, for)
  • alias - aliases
  • suffix-alias - suffix aliases (requires zsh 5.1.1 or newer)
  • 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
  • path - existing filenames
  • path_prefix - prefixes of existing filenames
  • globbing - globbing expressions (*.txt)
  • history-expansion - history expansion expressions (!foo and ^foo^bar)
  • single-hyphen-option - single hyphen options (-o)
  • double-hyphen-option - double hyphen options (--option)
  • back-quoted-argument - backquoted expressions (`foo`)
  • single-quoted-argument - single quoted arguments ('foo')
  • double-quoted-argument - double quoted arguments ("foo")
  • dollar-quoted-argument - dollar quoted arguments ($'foo')
  • dollar-double-quoted-argument - parameter expansion inside double quotes ($foo inside "")
  • back-double-quoted-argument - back double quoted arguments (\x inside "")
  • back-dollar-quoted-argument - back dollar quoted arguments (\x inside $'')
  • assign - parameter assignments
  • redirection - redirection operators (<, >, etc)
  • comment - comments, when setopt INTERACTIVE_COMMENTS is in effect (echo # foo)
  • default - everything else

To override one of those styles, change its entry in ZSH_HIGHLIGHT_STYLES, for example in ~/.zshrc:

# Declare the variable
typeset -A ZSH_HIGHLIGHT_STYLES

# To differentiate aliases from other command types
ZSH_HIGHLIGHT_STYLES[alias]='fg=magenta,bold'

# To have paths colored instead of underlined
ZSH_HIGHLIGHT_STYLES[path]='fg=cyan'

# To disable highlighting of globbing expressions
ZSH_HIGHLIGHT_STYLES[globbing]='none'

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.