zsh-syntax-highlighting/highlighters/README.md

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zsh-syntax-highlighting / highlighters
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Syntax highlighting is done by pluggable highlighters:
* [***main***](main) - the base highlighter, and the only one active by default.
* [***brackets***](brackets) - matches brackets and parenthesis.
* [***pattern***](pattern) - matches user-defined patterns.
How to activate highlighters
----------------------------
To activate an highlighter, add it to the `ZSH_HIGHLIGHT_HIGHLIGHTERS` array in `~/.zshrc`, for example:
ZSH_HIGHLIGHT_HIGHLIGHTERS=(main brackets pattern)
How to tweak highlighters
-------------------------
Highlighters look up styles from the `ZSH_HIGHLIGHT_STYLES` array. Navigate into each highlighter directory to see what styles it defines and how to configure it.
How to implement a new highlighter
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To create your own ***myhighlighter*** highlighter:
* Create your script at **highlighters/*myhighlighter*/*myhighlighter*-highlighter.zsh**.
* Implement the `_zsh_highlight_myhighlighter_highlighter_predicate` function. This function must return 0 when the highlighter needs to be called, for example:
_zsh_highlight_myhighlighter_highlighter_predicate() {
# Call this highlighter in SVN repositories
[[ -d .svn ]]
}
* Implement the `_zsh_highlight_myhighlighter_highlighter` function. This function does the actual syntax highlighting, by modifying `region_highlight`, for example:
_zsh_highlight_myhighlighter_highlighter() {
# Colorize the whole buffer with blue background
region_highlight+=(0 $#BUFFER bg=blue)
}
* Activate your highlighter in `~/.zshrc`:
ZSH_HIGHLIGHT_HIGHLIGHTERS+=(myhighlighter)