diff options
author | justsaumit <justsaumit@draconyan.xyz> | 2022-03-02 11:23:45 +0530 |
---|---|---|
committer | justsaumit <justsaumit@draconyan.xyz> | 2022-03-02 11:23:45 +0530 |
commit | a754011fc58e83f38cadc5bc10492ab961c9c540 (patch) | |
tree | d7c3cd6fd254fb7e52759f77e44193bf103de177 /.config/zsh/plugins/zsh-syntax-highlighting/docs | |
parent | 98bbe7bd7fcec209e2408ff0b086858715ca89e0 (diff) |
spring cleaning 0.1
Diffstat (limited to '.config/zsh/plugins/zsh-syntax-highlighting/docs')
8 files changed, 448 insertions, 0 deletions
diff --git a/.config/zsh/plugins/zsh-syntax-highlighting/docs/highlighters.md b/.config/zsh/plugins/zsh-syntax-highlighting/docs/highlighters.md new file mode 100644 index 0000000..3a289ca --- /dev/null +++ b/.config/zsh/plugins/zsh-syntax-highlighting/docs/highlighters.md @@ -0,0 +1,134 @@ +zsh-syntax-highlighting / highlighters +====================================== + +Syntax highlighting is done by pluggable highlighters: + +* `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]. + +[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 `${ZSH_HIGHLIGHT_MAXLENGTH}` to the maximum +length (in characters) of command lines to be highlighter. This is useful when +editing very long command lines (for example, with the [`fned`][fned] utility +function). Example: + +[fned]: https://zsh.sourceforge.io/Doc/Release/User-Contributions.html#index-zed + +```zsh +ZSH_HIGHLIGHT_MAXLENGTH=512 +``` + + +How to activate highlighters +---------------------------- + +To activate an highlighter, add it to the `ZSH_HIGHLIGHT_HIGHLIGHTERS` array in +`~/.zshrc`, for example: + +```zsh +ZSH_HIGHLIGHT_HIGHLIGHTERS=(main brackets pattern cursor) +``` + +By default, `$ZSH_HIGHLIGHT_HIGHLIGHTERS` is unset and only the `main` +highlighter is active. + + +How to tweak highlighters +------------------------- + +Highlighters look up styles from the `ZSH_HIGHLIGHT_STYLES` associative array. +Navigate into the [individual highlighters' documentation](highlighters/) to +see what styles (keys) each highlighter defines; 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]: 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. + + +How to implement a new highlighter +---------------------------------- + +To create your own `acme` highlighter: + +* Create your script at + `highlighters/acme/acme-highlighter.zsh`. + +* Implement the `_zsh_highlight_highlighter_acme_predicate` function. + This function must return 0 when the highlighter needs to be called and + non-zero otherwise, for example: + + ```zsh + _zsh_highlight_highlighter_acme_predicate() { + # Call this highlighter in SVN working copies + [[ -d .svn ]] + } + ``` + +* Implement the `_zsh_highlight_highlighter_acme_paint` function. + This function does the actual syntax highlighting, by calling + `_zsh_highlight_add_highlight` with the start and end of the region to + be highlighted and the `ZSH_HIGHLIGHT_STYLES` key to use. Define the default + style for that key in the highlighter script outside of any function with + `: ${ZSH_HIGHLIGHT_STYLES[key]:=value}`, being sure to prefix + the key with your highlighter name and a colon. For example: + + ```zsh + : ${ZSH_HIGHLIGHT_STYLES[acme:aurora]:=fg=green} + + _zsh_highlight_highlighter_acme_paint() { + # Colorize the whole buffer with the 'aurora' style + _zsh_highlight_add_highlight 0 $#BUFFER acme:aurora + } + ``` + + If you need to test which options the user has set, test `zsyh_user_options` + with a sensible default if the option is not present in supported zsh + versions. For example: + + ```zsh + [[ ${zsyh_user_options[ignoreclosebraces]:-off} == on ]] + ``` + + The option name must be all lowercase with no underscores and not an alias. + +* Name your own functions and global variables `_zsh_highlight_acme_*`. + + - In zsh-syntax-highlighting 0.4.0 and earlier, the entrypoints + `_zsh_highlight_highlighter_acme_predicate` and + `_zsh_highlight_highlighter_acme_paint` + were named + `_zsh_highlight_acme_highlighter_predicate` and + `_zsh_highlight_highlighter_acme_paint` respectively. + + These names are still supported for backwards compatibility; + however, support for them will be removed in a future major or minor release (v0.x.0 or v1.0.0). + +* Activate your highlighter in `~/.zshrc`: + + ```zsh + ZSH_HIGHLIGHT_HIGHLIGHTERS+=(acme) + ``` + +* [Write tests](../tests/README.md). diff --git a/.config/zsh/plugins/zsh-syntax-highlighting/docs/highlighters/brackets.md b/.config/zsh/plugins/zsh-syntax-highlighting/docs/highlighters/brackets.md new file mode 100644 index 0000000..0101699 --- /dev/null +++ b/.config/zsh/plugins/zsh-syntax-highlighting/docs/highlighters/brackets.md @@ -0,0 +1,31 @@ +zsh-syntax-highlighting / highlighters / brackets +------------------------------------------------- + +This is the `brackets` highlighter, that highlights brackets and parentheses, and +matches them. + + +### How to tweak it + +This highlighter defines the following styles: + +* `bracket-error` - unmatched brackets +* `bracket-level-N` - brackets with nest level N +* `cursor-matchingbracket` - the matching bracket, if cursor is on a bracket + +To override one of those styles, change its entry in `ZSH_HIGHLIGHT_STYLES`, +for example in `~/.zshrc`: + +```zsh +# To define styles for nested brackets up to level 4 +ZSH_HIGHLIGHT_STYLES[bracket-level-1]='fg=blue,bold' +ZSH_HIGHLIGHT_STYLES[bracket-level-2]='fg=red,bold' +ZSH_HIGHLIGHT_STYLES[bracket-level-3]='fg=yellow,bold' +ZSH_HIGHLIGHT_STYLES[bracket-level-4]='fg=magenta,bold' +``` + +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]: https://zsh.sourceforge.io/Doc/Release/Zsh-Line-Editor.html#Character-Highlighting diff --git a/.config/zsh/plugins/zsh-syntax-highlighting/docs/highlighters/cursor.md b/.config/zsh/plugins/zsh-syntax-highlighting/docs/highlighters/cursor.md new file mode 100644 index 0000000..3f87d42 --- /dev/null +++ b/.config/zsh/plugins/zsh-syntax-highlighting/docs/highlighters/cursor.md @@ -0,0 +1,24 @@ +zsh-syntax-highlighting / highlighters / cursor +----------------------------------------------- + +This is the `cursor` highlighter, that highlights the cursor. + + +### How to tweak it + +This highlighter defines the following styles: + +* `cursor` - the style for the current cursor position + +To override one of those styles, change its entry in `ZSH_HIGHLIGHT_STYLES`, +for example in `~/.zshrc`: + +```zsh +ZSH_HIGHLIGHT_STYLES[cursor]='bg=blue' +``` + +The syntax for values is the same as the syntax of "types of highlighting" of +the zsh builtin `$zle_highlight` array, which is documented in [the `zshzle(1)` +manual page][zshzle-Character-Highlighting]. + +[zshzle-Character-Highlighting]: https://zsh.sourceforge.io/Doc/Release/Zsh-Line-Editor.html#Character-Highlighting diff --git a/.config/zsh/plugins/zsh-syntax-highlighting/docs/highlighters/line.md b/.config/zsh/plugins/zsh-syntax-highlighting/docs/highlighters/line.md new file mode 100644 index 0000000..f76639e --- /dev/null +++ b/.config/zsh/plugins/zsh-syntax-highlighting/docs/highlighters/line.md @@ -0,0 +1,24 @@ +zsh-syntax-highlighting / highlighters / line +--------------------------------------------- + +This is the `line` highlighter, that highlights the whole line. + + +### How to tweak it + +This highlighter defines the following styles: + +* `line` - the style for the whole line + +To override one of those styles, change its entry in `ZSH_HIGHLIGHT_STYLES`, +for example in `~/.zshrc`: + +```zsh +ZSH_HIGHLIGHT_STYLES[line]='bold' +``` + +The syntax for values is the same as the syntax of "types of highlighting" of +the zsh builtin `$zle_highlight` array, which is documented in [the `zshzle(1)` +manual page][zshzle-Character-Highlighting]. + +[zshzle-Character-Highlighting]: https://zsh.sourceforge.io/Doc/Release/Zsh-Line-Editor.html#Character-Highlighting diff --git a/.config/zsh/plugins/zsh-syntax-highlighting/docs/highlighters/main.md b/.config/zsh/plugins/zsh-syntax-highlighting/docs/highlighters/main.md new file mode 100644 index 0000000..4a27653 --- /dev/null +++ b/.config/zsh/plugins/zsh-syntax-highlighting/docs/highlighters/main.md @@ -0,0 +1,121 @@ +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) +* `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 +* `path_prefix_pathseparator` - path separators in prefixes of existing filenames (`/`); if unset, `path_prefix` is used (default) +* `globbing` - globbing expressions (`*.txt`) +* `history-expansion` - history expansion expressions (`!foo` and `^foo^bar`) +* `command-substitution` - command substitutions (`$(echo foo)`) +* `command-substitution-unquoted` - an unquoted command substitution (`$(echo foo)`) +* `command-substitution-quoted` - a quoted command substitution (`"$(echo foo)"`) +* `command-substitution-delimiter` - command substitution delimiters (`$(` and `)`) +* `command-substitution-delimiter-unquoted` - an unquoted command substitution delimiters (`$(` and `)`) +* `command-substitution-delimiter-quoted` - a quoted command substitution delimiters (`"$(` 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` ``) +* `back-quoted-argument-unclosed` - unclosed backtick command substitution (`` `foo ``) +* `back-quoted-argument-delimiter` - backtick command substitution delimiters (`` ` ``) +* `single-quoted-argument` - single-quoted arguments (`` 'foo' ``) +* `single-quoted-argument-unclosed` - unclosed single-quoted arguments (`` 'foo ``) +* `double-quoted-argument` - double-quoted arguments (`` "foo" ``) +* `double-quoted-argument-unclosed` - unclosed double-quoted arguments (`` "foo ``) +* `dollar-quoted-argument` - dollar-quoted arguments (`` $'foo' ``) +* `dollar-quoted-argument-unclosed` - unclosed dollar-quoted arguments (`` $'foo ``) +* `rc-quote` - two single quotes inside single quotes when the `RC_QUOTES` option is set (`` 'foo''bar' ``) +* `dollar-double-quoted-argument` - parameter expansion inside double quotes (`$foo` inside `""`) +* `back-double-quoted-argument` - backslash escape sequences inside double-quoted arguments (`\"` in `"foo\"bar"`) +* `back-dollar-quoted-argument` - backslash escape sequences inside dollar-quoted arguments (`\x` in `$'\x48'`) +* `assign` - parameter assignments (`x=foo` and `x=( )`) +* `redirection` - redirection operators (`<`, `>`, etc) +* `comment` - comments, when `setopt INTERACTIVE_COMMENTS` is in effect (`echo # foo`) +* `comment` - elided parameters in command position (`$x ls` when `$x` is unset or empty) +* `named-fd` - named file descriptor (the `fd` in `echo foo {fd}>&2`) +* `numeric-fd` - numeric file descriptor (the `2` in `echo foo {fd}>&2`) +* `arg0` - a command word other than one of those enumerated above (other than a command, precommand, alias, function, or shell builtin command). +* `default` - everything else + +To override one of those styles, change its entry in `ZSH_HIGHLIGHT_STYLES`, +for example in `~/.zshrc`: + +```zsh +# Declare the variable +typeset -A ZSH_HIGHLIGHT_STYLES + +# To differentiate aliases from other command types +ZSH_HIGHLIGHT_STYLES[alias]='fg=magenta,bold' + +# To have paths colored instead of underlined +ZSH_HIGHLIGHT_STYLES[path]='fg=cyan' + +# To disable highlighting of globbing expressions +ZSH_HIGHLIGHT_STYLES[globbing]='none' +``` + +The syntax for values is the same as the syntax of "types of highlighting" of +the zsh builtin `$zle_highlight` array, which is documented in [the `zshzle(1)` +manual page][zshzle-Character-Highlighting]. + +#### Parameters + +To avoid partial path lookups on a path, add the path to the `ZSH_HIGHLIGHT_DIRS_BLACKLIST` array. + +```zsh +ZSH_HIGHLIGHT_DIRS_BLACKLIST+=(/mnt/slow_share) +``` + +### Useless trivia + +#### Forward compatibility. + +zsh-syntax-highlighting attempts to be forward-compatible with zsh. +Specifically, we attempt to facilitate highlighting _command word_ types that +had not yet been invented when this version of zsh-syntax-highlighting was +released. + +A _command word_ is something like a function name, external command name, et +cetera. (See +[Simple Commands & Pipelines in `zshmisc(1)`][zshmisc-Simple-Commands-And-Pipelines] +for a formal definition.) + +If a new _kind_ of command word is ever added to zsh — something conceptually +different than "function" and "alias" and "external command" — then command words +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]: https://zsh.sourceforge.io/Doc/Release/Shell-Grammar.html#Simple-Commands-_0026-Pipelines + +[zshzle-Character-Highlighting]: https://zsh.sourceforge.io/Doc/Release/Zsh-Line-Editor.html#Character-Highlighting diff --git a/.config/zsh/plugins/zsh-syntax-highlighting/docs/highlighters/pattern.md b/.config/zsh/plugins/zsh-syntax-highlighting/docs/highlighters/pattern.md new file mode 100644 index 0000000..ecaa6a7 --- /dev/null +++ b/.config/zsh/plugins/zsh-syntax-highlighting/docs/highlighters/pattern.md @@ -0,0 +1,24 @@ +zsh-syntax-highlighting / highlighters / pattern +------------------------------------------------ + +This is the `pattern` highlighter, that highlights user-defined patterns. + + +### How to tweak it + +To use this highlighter, associate patterns with styles in the +`ZSH_HIGHLIGHT_PATTERNS` associative array, for example in `~/.zshrc`: + +```zsh +# Declare the variable +typeset -A ZSH_HIGHLIGHT_PATTERNS + +# To have commands starting with `rm -rf` in red: +ZSH_HIGHLIGHT_PATTERNS+=('rm -rf *' 'fg=white,bold,bg=red') +``` + +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]: https://zsh.sourceforge.io/Doc/Release/Zsh-Line-Editor.html#Character-Highlighting diff --git a/.config/zsh/plugins/zsh-syntax-highlighting/docs/highlighters/regexp.md b/.config/zsh/plugins/zsh-syntax-highlighting/docs/highlighters/regexp.md new file mode 100644 index 0000000..b1bed91 --- /dev/null +++ b/.config/zsh/plugins/zsh-syntax-highlighting/docs/highlighters/regexp.md @@ -0,0 +1,65 @@ +zsh-syntax-highlighting / highlighters / regexp +------------------------------------------------ + +This is the `regexp` highlighter, that highlights user-defined regular +expressions. It's similar to the `pattern` highlighter, but allows more complex +patterns. + +### How to tweak it + +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_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) + ``` + +* 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)` +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]: https://zsh.sourceforge.io/Doc/Release/Zsh-Line-Editor.html#Character-Highlighting +[perlretut]: http://perldoc.perl.org/perlretut.html +[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 diff --git a/.config/zsh/plugins/zsh-syntax-highlighting/docs/highlighters/root.md b/.config/zsh/plugins/zsh-syntax-highlighting/docs/highlighters/root.md new file mode 100644 index 0000000..8197e4b --- /dev/null +++ b/.config/zsh/plugins/zsh-syntax-highlighting/docs/highlighters/root.md @@ -0,0 +1,25 @@ +zsh-syntax-highlighting / highlighters / root +--------------------------------------------- + +This is the `root` highlighter, that highlights the whole line if the current +user is root. + + +### How to tweak it + +This highlighter defines the following styles: + +* `root` - the style for the whole line if the current user is root. + +To override one of those styles, change its entry in `ZSH_HIGHLIGHT_STYLES`, +for example in `~/.zshrc`: + +```zsh +ZSH_HIGHLIGHT_STYLES[root]='bg=red' +``` + +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]: https://zsh.sourceforge.io/Doc/Release/Zsh-Line-Editor.html#Character-Highlighting |