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zsh/Completion/Builtins/_cd
2000-04-01 20:43:43 +00:00

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#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 +, 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.
setopt localoptions nonomatch
local expl
if [[ CURRENT -eq 3 ]]; 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/$words[2]/*}~$PWD(-/N))
# Now remove all the common parts of $PWD and the completions from this
rep=(${${rep#${PWD%%$words[2]*}}%${PWD#*$words[2]}})
(( $#rep )) && _wanted -C replacement strings expl replacement compadd $rep
elif _popd || [[ $PREFIX != (\~|/|./|../)* && $#cdpath -ne 0 ]]; then
local tdir tdir2
# With cdablevars, we can convert foo/bar/... to ~foo/bar/... if
# there is no directory foo. In that case we could also complete
# variable names, but it hardly seems worth it.
# Note we need a tilde because cdablevars also allows user home
# directories, hence we also need nonomatch to suppress error messages.
if [[ -o cdablevars && -n "$PREFIX" && ! -d ${tdir::=${PREFIX%%/*}} &&
-d ${~tdir2::="~$tdir"} ]]; then
PREFIX="~$PREFIX"
_wanted directories expl directory _path_files -/
else
local tmpcdpath
tmpcdpath=(${${(@)cdpath:#.}:#$PWD})
_alternative \
'local-directories:local directories:_path_files -/' \
"path-directories:directories in cdpath:_path_files -W tmpcdpath -/"
fi
else
_wanted directories expl directory _path_files -/
fi