Current File : //usr/share/zsh/5.0.2/functions/_approximate
#autoload
# This code will try to correct the string on the line based on the
# strings generated for the context. These corrected strings will be
# shown in a list and one can cycle through them as in a menu completion
# or get the corrected prefix.
# We don't try correction if the string is too short or we have tried it
# already.
[[ _matcher_num -gt 1 || "${#:-$PREFIX$SUFFIX}" -le 1 ]] && return 1
local _comp_correct _correct_expl _correct_group comax cfgacc match
local oldcontext="${curcontext}" opm="$compstate[pattern_match]"
local dounfunction
integer ret=1
if [[ "$1" = -a* ]]; then
cfgacc="${1[3,-1]}"
elif [[ "$1" = -a ]]; then
cfgacc="$2"
else
zstyle -s ":completion:${curcontext}:" max-errors cfgacc ||
cfgacc='2 numeric'
fi
# Get the number of errors to accept.
if [[ "$cfgacc" = *numeric* && ${NUMERIC:-1} -ne 1 ]]; then
# A numeric argument may mean that we should not try correction.
[[ "$cfgacc" = *not-numeric* ]] && return 1
# Prefer the numeric argument if that has a sensible value.
comax="${NUMERIC:-1}"
else
comax="${cfgacc//[^0-9]}"
fi
# If the number of errors to accept is too small, give up.
[[ "$comax" -lt 1 ]] && return 1
_tags corrections original
# Otherwise temporarily define a function to use instead of
# the builtin that adds matches. This is used to be able
# to stick the `(#a...)' in the right place (after an
# ignored prefix).
#
# Current shell structure for use with "always", to make sure
# we unfunction the compadd.
{
if (( ! $+functions[compadd] )); then
dounfunction=1
compadd() {
local ppre="$argv[(I)-p]"
[[ ${argv[(I)-[a-zA-Z]#U[a-zA-Z]#]} -eq 0 &&
"${#:-$PREFIX$SUFFIX}" -le _comp_correct ]] && return
if [[ "$PREFIX" = \~* && ( ppre -eq 0 || "$argv[ppre+1]" != \~* ) ]]; then
PREFIX="~(#a${_comp_correct})${PREFIX[2,-1]}"
else
PREFIX="(#a${_comp_correct})$PREFIX"
fi
(( $_correct_group && ${${argv[1,(r)-(|-)]}[(I)-*[JV]]} )) &&
_correct_expl[_correct_group]=${argv[1,(r)-(-|)][(R)-*[JV]]}
builtin compadd "$_correct_expl[@]" "$@"
}
fi
_comp_correct=1
[[ -z "$compstate[pattern_match]" ]] && compstate[pattern_match]='*'
while [[ _comp_correct -le comax ]]; do
curcontext="${oldcontext/(#b)([^:]#:[^:]#:)/${match[1][1,-2]}-${_comp_correct}:}"
_description corrections _correct_expl corrections \
"e:$_comp_correct" "o:$PREFIX$SUFFIX"
_correct_group="$_correct_expl[(I)-*[JV]]"
if _complete; then
if zstyle -t ":completion:${curcontext}:" insert-unambiguous &&
[[ "${#compstate[unambiguous]}" -ge "${#:-$PREFIX$SUFFIX}" ]]; then
compstate[pattern_insert]=unambiguous
elif _requested original &&
{ [[ compstate[nmatches] -gt 1 ]] ||
zstyle -t ":completion:${curcontext}:" original }; then
local expl
_description -V original expl original
builtin compadd "$expl[@]" -U -Q - "$PREFIX$SUFFIX"
# If you always want to see the list of possible corrections,
# set `compstate[list]=list force' here.
[[ "$compstate[list]" != list* ]] &&
compstate[list]="$compstate[list] force"
fi
compstate[pattern_match]="$opm"
ret=0
break
fi
[[ "${#:-$PREFIX$SUFFIX}" -le _comp_correct+1 ]] && break
(( _comp_correct++ ))
done
} always {
[[ -n $dounfunction ]] && (( $+functions[compadd] )) && unfunction compadd
}
(( ret == 0 )) && return 0
compstate[pattern_match]="$opm"
return 1
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