Highlight redirections.

Fixes zsh-users/zsh-syntax-highlighting#23.

* danielsh/i23-highlight-redirections:
  Highlight redirections.
This commit is contained in:
Daniel Shahaf 2015-09-26 17:58:07 +00:00
commit 4ec821b2b1
3 changed files with 43 additions and 1 deletions

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@ -47,6 +47,7 @@ This highlighter defines the following styles:
* `back-double-quoted-argument` - back double quoted arguments (\x inside "")
* `back-dollar-quoted-argument` - back dollar quoted arguments (\x inside $'')
* `assign` - variable assignments
* `redirection` - redirection operators (`<`, `>`, etc)
* `default` - parts of the buffer that do not match anything
To override one of those styles, change its entry in `ZSH_HIGHLIGHT_STYLES`, for example in `~/.zshrc`:

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@ -56,6 +56,7 @@
: ${ZSH_HIGHLIGHT_STYLES[back-double-quoted-argument]:=fg=cyan}
: ${ZSH_HIGHLIGHT_STYLES[back-dollar-quoted-argument]:=fg=cyan}
: ${ZSH_HIGHLIGHT_STYLES[assign]:=none}
: ${ZSH_HIGHLIGHT_STYLES[redirection]:=none}
# Whether the highlighter should be called or not.
_zsh_highlight_main_highlighter_predicate()
@ -182,7 +183,7 @@ _zsh_highlight_main_highlighter()
elif [[ $arg[0,1] == $histchars[0,1] || $arg[0,1] == $histchars[2,2] ]]; then
style=$ZSH_HIGHLIGHT_STYLES[history-expansion]
elif [[ $arg[1] == '<' || $arg[1] == '>' ]]; then
style=$ZSH_HIGHLIGHT_STYLE[redirection]
style=$ZSH_HIGHLIGHT_STYLES[redirection]
redirection=true
else
style=$ZSH_HIGHLIGHT_STYLES[unknown-token]
@ -217,6 +218,8 @@ _zsh_highlight_main_highlighter()
style=$ZSH_HIGHLIGHT_STYLES[history-expansion]
elif [[ -n ${(M)ZSH_HIGHLIGHT_TOKENS_COMMANDSEPARATOR:#"$arg"} ]]; then
style=$ZSH_HIGHLIGHT_STYLES[commandseparator]
elif [[ $arg[1] == '<' || $arg[1] == '>' ]]; then
style=$ZSH_HIGHLIGHT_STYLES[redirection]
else
style=$ZSH_HIGHLIGHT_STYLES[default]
fi

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@ -0,0 +1,38 @@
#!/usr/bin/env zsh
# -------------------------------------------------------------------------------------------------
# Copyright (c) 2015 zsh-syntax-highlighting contributors
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without modification, are permitted
# provided that the following conditions are met:
#
# * Redistributions of source code must retain the above copyright notice, this list of conditions
# and the following disclaimer.
# * Redistributions in binary form must reproduce the above copyright notice, this list of
# conditions and the following disclaimer in the documentation and/or other materials provided
# with the distribution.
# * Neither the name of the zsh-syntax-highlighting contributors nor the names of its contributors
# may be used to endorse or promote products derived from this software without specific prior
# written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
# IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
# FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
# IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
# -------------------------------------------------------------------------------------------------
# -*- mode: zsh; sh-indentation: 2; indent-tabs-mode: nil; sh-basic-offset: 2; -*-
# vim: ft=zsh sw=2 ts=2 et
# -------------------------------------------------------------------------------------------------
# Redirection before and after the command word are implemented differently; test both.
ZSH_HIGHLIGHT_STYLES[redirection]=$unused_highlight
BUFFER='<<<foo echo >>&!bar'
expected_region_highlight=(
"1 3 $ZSH_HIGHLIGHT_STYLES[redirection]" # <<<
"13 16 $ZSH_HIGHLIGHT_STYLES[redirection]" # >>&!
)