Freddy Vulto ccbf141e13 Fix tilde (~) completion with _filedir
This fixes tilde completion when doing for instance `ls ~<TAB>'.  See
also: Alioth #312613.

Added _tilde() helper function.

Contrary to _expand() and __expand_tilde_by_ref(), _tilde() also leaves the
tilde (~) intact.  Replacement of the tilde has been a complaint in other
bugreports, especially since plain bash completion (without bash-completion
installed) doesn't expand the tilde when doing a `ls ~<TAB>'.

To run the tests:

    ./run completion/ls.exp
    ./run unit/_tilde.exp
2010-06-30 23:28:31 +02:00

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# @param string $part Reference to variable to hold partial unique username
# @param string $full Reference to variable to hold full unique username
proc setup {part full} {
upvar $part _part
upvar $full _full
assert_bash_exec {compgen -u} {} /@ users
find_unique_completion_pair $users _part _full
save_env
}
proc teardown {} {
assert_env_unmodified {
/COMPREPLY=/d
}
}
setup part full
set test "function should run without errors"
assert_bash_exec {_tilde > /dev/null} $test
sync_after_int
set test "function should not pollute environment"
# NOTE: A possible environment pollution is detected by assert_env_modified() in teardown()
assert_bash_exec {foo() { local aa="~"; _tilde "$aa"; }; foo; unset foo} $test
sync_after_int
set test "~full should complete to ~full unmodified"
set cmd [format {_tilde "~%s"; printf "%%s" "${COMPREPLY[@]}"} $full]
assert_bash_list "~$full" $cmd $test
sync_after_int
set test "~part should complete to ~full"
set cmd [format {_tilde "~%s"; printf "%%s" "${COMPREPLY[@]}"} $part]
assert_bash_list "~$full" $cmd $test
teardown