Current File : //usr/share/zsh/5.0.2/functions/_match
#autoload
# This is intended to be used as a completer function after the normal
# completer as in: `zstyle ":completion:::::" completer _complete _match'.
# It temporarily switches on pattern matching, allowing you to try
# completion on patterns without having to setopt glob_complete.
#
# Note, however, that this is only really useful if you don't use the
# expand-or-complete function because otherwise the pattern will
# be expanded using globbing.
### Shouldn't be needed any more: [[ _matcher_num -gt 1 ]] && return 1
local tmp opm="$compstate[pattern_match]" ret=1 orig ins
local oms="$_old_match_string"
local ocsi="$compstate[insert]" ocspi="$compstate[pattern_insert]"
# Do nothing if we don't have a pattern.
tmp="${${:-$PREFIX$SUFFIX}#[~=]}"
[[ "$tmp:q" = "$tmp" ]] && return 1
_old_match_string="$PREFIX$SUFFIX$HISTNO"
_tags matches original
zstyle -s ":completion:${curcontext}:" match-original orig
zstyle -s ":completion:${curcontext}:" insert-unambiguous ins
# Try completion without inserting a `*'?
if [[ -n "$orig" ]]; then
compstate[pattern_match]='-'
_complete && ret=0
compstate[pattern_match]="$opm"
# No completion with inserting `*'?
[[ ret -eq 1 && "$orig" = only ]] && return 1
fi
if (( ret )); then
compstate[pattern_match]='*'
_complete && ret=0
compstate[pattern_match]="$opm"
fi
if (( ! ret )); then
if [[ "$ins" = pattern && $compstate[nmatches] -gt 1 ]]; then
[[ "$oms" = "$PREFIX$SUFFIX$HISTNO" &&
"$compstate[insert]" = automenu-unambiguous ]] &&
compstate[insert]=automenu
[[ "$compstate[insert]" != *menu ]] &&
compstate[pattern_insert]= compstate[insert]=
# We tried to be clever here, making completion insert unambiguous
# expansions as early as possible, but this is really hard to test
# and the code below probably does more harm than good.
#
# [[ $compstate[unambiguous_cursor] -gt $#compstate[unambiguous] ]] &&
# ins=yes compstate[insert]="$ocsi" compstate[pattern_insert]="$ocspi"
fi
if [[ "$ins" = (true|yes|on|1) &&
$#compstate[unambiguous] -ge ${#:-${PREFIX}${SUFFIX}} ]]
then
compstate[pattern_insert]=unambiguous
elif _requested original &&
{ [[ compstate[nmatches] -gt 1 ]] ||
zstyle -t ":completion:${curcontext}:" original }; then
local expl
_description -V original expl original
compadd "$expl[@]" -U -Q - "$PREFIX$SUFFIX"
fi
fi
return ret
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