Current File : //usr/share/zsh/5.0.2/functions/_cd
#compdef cd chdir pushd
# Handling of cd.
# - Normally just completes directories. Uses cdpath if that's set
# and the string doesn't begin with ~, /, ./ or ../.
# - In the second argument to cd for the form `cd old new', completes
# possible `new' strings by examining `old' and $PWD.
# - After - or +, _directory_stack completes numbers, but the listing
# gives you the list of directories to complete. This turns on
# menu-completion and lists the possibilities automatically, otherwise
# it's not a lot of use. If you don't type the + or - it will
# complete directories as normal.
_cd_options() {
_arguments -s \
'-q[quiet, no output or use of hooks]' \
'-s[refuse to use paths with symlinks]' \
'(-P)-L[retain symbolic links ignoring CHASE_LINKS]' \
'(-L)-P[resolve symbolic links as CHASE_LINKS]'
}
setopt localoptions nonomatch
local expl ret=1 curarg
integer argstart=2 noopts
if (( CURRENT > 1 )); then
# if not in command position, may have options.
# Careful: -<-> is not an option.
while [[ $words[$argstart] = -* && argstart -lt CURRENT ]]; do
curarg=$words[$argstart]
[[ $curarg = -<-> ]] && break
(( argstart++ ))
[[ $curarg = -- ]] && noopts=1 && break
done
fi
if [[ CURRENT -eq $((argstart+1)) ]]; then
# cd old new: look for old in $PWD and see what can replace it
local rep
# Get possible completions using word in position 2
rep=(${~PWD/$words[$argstart]/*}~$PWD(-/))
# Now remove all the common parts of $PWD and the completions from this
rep=(${${rep#${PWD%%$words[$argstart]*}}%${PWD#*$words[$argstart]}})
(( $#rep )) && _wanted -C replacement strings expl replacement compadd -a rep
else
# Complete directory stack entries with ~ or when not in command position
# (the rest of this test is optimization for the _tilde call below)
if [[ "$PREFIX" == (#b)(\~|)[^/]# &&
( -n "$match[1]" || ( CURRENT -gt 1 && ! -o cdablevars ) ) ]]; then
_directory_stack && ret=0
fi
if [[ $PREFIX != (\~|/|./|../)* ]]; then
local tmpcdpath alt
alt=()
tmpcdpath=(${${(@)cdpath:#.}:#$PWD})
(( $#tmpcdpath )) &&
alt=( 'path-directories:directory in cdpath:_path_files -W tmpcdpath -/' )
# With cdablevars, we can complete foo as if ~foo/
if [[ -o cdablevars && -n "$PREFIX" && "$PREFIX" != <-> ]]; then
if [[ "$PREFIX" != */* ]]; then
alt=( "$alt[@]" 'named-directories: : _tilde' )
else
local oipre="$IPREFIX" opre="$PREFIX" dirpre dir
# Note we need a tilde because cdablevars also allows user home
# directories, hence nonomatch (above) to suppress error messages.
dirpre="${PREFIX%%/*}/"
IPREFIX="$IPREFIX$dirpre"
eval "dir=( ~$dirpre )"
PREFIX="${PREFIX#*/}"
[[ $#dir -eq 1 && "$dir[1]" != "~$dirpre" ]] &&
_wanted named-directories expl 'directory after cdablevar' \
_path_files -W dir -/ && ret=0
PREFIX="$opre"
IPREFIX="$oipre"
fi
fi
# Don't complete local directories in command position, that's
# already handled by _command_names (see _autocd)
[[ CURRENT -ne 1 || ( -z "$path[(r).]" && $PREFIX != */* ) ]] &&
alt=( "${cdpath+local-}directories:${cdpath+local }directory:_path_files -/" "$alt[@]" )
if [[ CURRENT -eq argstart && noopts -eq 0 && $PREFIX = -* ]] &&
zstyle -t ":completion:${curcontext}:options" complete-options; then
alt=("$service-options:$service option:_cd_options" "$alt[@]")
fi
_alternative "$alt[@]" && ret=0
return ret
fi
[[ CURRENT -ne 1 ]] && _wanted directories expl directory \
_path_files -/ && ret=0
return ret
fi
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