zsh-syntax-highlighting/highlighters/main/main-highlighter.zsh

# -------------------------------------------------------------------------------------------------
# Copyright (c) 2010-2020 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
# -------------------------------------------------------------------------------------------------


# Define default styles.
: ${ZSH_HIGHLIGHT_STYLES[default]:=none}
: ${ZSH_HIGHLIGHT_STYLES[unknown-token]:=fg=red,bold}
: ${ZSH_HIGHLIGHT_STYLES[reserved-word]:=fg=yellow}
: ${ZSH_HIGHLIGHT_STYLES[suffix-alias]:=fg=green,underline}
: ${ZSH_HIGHLIGHT_STYLES[global-alias]:=fg=cyan}
: ${ZSH_HIGHLIGHT_STYLES[precommand]:=fg=green,underline}
: ${ZSH_HIGHLIGHT_STYLES[commandseparator]:=none}
: ${ZSH_HIGHLIGHT_STYLES[autodirectory]:=fg=green,underline}
: ${ZSH_HIGHLIGHT_STYLES[path]:=underline}
: ${ZSH_HIGHLIGHT_STYLES[path_pathseparator]:=}
: ${ZSH_HIGHLIGHT_STYLES[path_prefix_pathseparator]:=}
: ${ZSH_HIGHLIGHT_STYLES[globbing]:=fg=blue}
: ${ZSH_HIGHLIGHT_STYLES[history-expansion]:=fg=blue}
: ${ZSH_HIGHLIGHT_STYLES[command-substitution]:=none}
: ${ZSH_HIGHLIGHT_STYLES[command-substitution-delimiter]:=fg=magenta}
: ${ZSH_HIGHLIGHT_STYLES[process-substitution]:=none}
: ${ZSH_HIGHLIGHT_STYLES[process-substitution-delimiter]:=fg=magenta}
: ${ZSH_HIGHLIGHT_STYLES[single-hyphen-option]:=none}
: ${ZSH_HIGHLIGHT_STYLES[double-hyphen-option]:=none}
: ${ZSH_HIGHLIGHT_STYLES[back-quoted-argument]:=none}
: ${ZSH_HIGHLIGHT_STYLES[back-quoted-argument-delimiter]:=fg=magenta}
: ${ZSH_HIGHLIGHT_STYLES[single-quoted-argument]:=fg=yellow}
: ${ZSH_HIGHLIGHT_STYLES[double-quoted-argument]:=fg=yellow}
: ${ZSH_HIGHLIGHT_STYLES[dollar-quoted-argument]:=fg=yellow}
: ${ZSH_HIGHLIGHT_STYLES[rc-quote]:=fg=cyan}
: ${ZSH_HIGHLIGHT_STYLES[dollar-double-quoted-argument]:=fg=cyan}
: ${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]:=fg=yellow}
: ${ZSH_HIGHLIGHT_STYLES[comment]:=fg=black,bold}
: ${ZSH_HIGHLIGHT_STYLES[named-fd]:=none}
: ${ZSH_HIGHLIGHT_STYLES[numeric-fd]:=none}
: ${ZSH_HIGHLIGHT_STYLES[arg0]:=fg=green}

# -------------------------------------------------------------------------------------------------
# Main highlighter initialization
# -------------------------------------------------------------------------------------------------

_zsh_highlight_main__precmd_hook() {
  # Unset the WARN_NESTED_VAR option, taking care not to error if the option
  # doesn't exist (zsh older than zsh-5.3.1-test-2).
  setopt localoptions
  if eval '[[ -o warnnestedvar ]]' 2>/dev/null; then
    unsetopt warnnestedvar
  fi

  _zsh_highlight_main__command_type_cache=()
}

autoload -Uz add-zsh-hook
if add-zsh-hook precmd _zsh_highlight_main__precmd_hook 2>/dev/null; then
  # Initialize command type cache
  typeset -gA _zsh_highlight_main__command_type_cache
else
  print -r -- >&2 'zsh-syntax-highlighting: Failed to load add-zsh-hook. Some speed optimizations will not be used.'
  # Make sure the cache is unset
  unset _zsh_highlight_main__command_type_cache
fi
typeset -ga ZSH_HIGHLIGHT_DIRS_BLACKLIST