shrink-path: add minimum length and ellipsis symbol options (#7382)

* Added minimum length and ellipsis symbol options for the shrink-path plugin.

* Replaced tab indentation with space indentation for the shrink-path plugin.

* Added handling of multicharacter ellipsis, and updated documentation and README for the shrink-path plugin.
This commit is contained in:
Pavel N. Krivitsky 2020-03-02 23:30:52 +11:00 committed by GitHub
parent 74420341df
commit e65bce8495
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2 changed files with 40 additions and 5 deletions

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@ -20,6 +20,8 @@ here are the results of calling `shrink_path <option> /home/me/foo/bar/quux`:
-s|--short /h/m/f/b/q
-t|--tilde ~/f/ba/q
-f|--fish ~/f/b/quux
-3 /hom/me/foo/bar/quu
-e '$' -3 /ho$/me/foo/bar/qu$
```
@ -38,10 +40,13 @@ The following options are available:
```
-f, --fish fish simulation, equivalent to -l -s -t.
-l, --last Print the last directory's full name.
-s, --short Truncate directory names to the first character. Without
-s, --short Truncate directory names to the number of characters given by -. Without
-s, names are truncated without making them ambiguous.
-t, --tilde Substitute ~ for the home directory.
-T, --nameddirs Substitute named directories as well.
-# Truncate each directly to at least this many characters inclusive of the
ellipsis character(s) (defaulting to 1).
-e SYMBOL Postfix symbol(s) to indicate that a directory name had been truncated.
```
The long options can also be set via zstyle, like
@ -56,6 +61,7 @@ supported.
## License
Copyright (C) 2008 by Daniel Friesel <derf@xxxxxxxxxxxxxxxxxx>
Copyright (C) 2018-2020 by Pavel N. Krivitsky
License: WTFPL <http://www.wtfpl.net>

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@ -10,10 +10,13 @@
#
# -f, --fish fish simulation, equivalent to -l -s -t.
# -l, --last Print the last directory's full name.
# -s, --short Truncate directory names to the first character. Without
# -s, --short Truncate directory names to the number of characters given by -#. Without
# -s, names are truncated without making them ambiguous.
# -t, --tilde Substitute ~ for the home directory.
# -T, --nameddirs Substitute named directories as well.
# -# Truncate each directly to at least this many characters inclusive of the
# ellipsis character(s) (defaulting to 1).
# -e SYMBOL Postfix symbol(s) to indicate that a directory name had been truncated.
#
# The long options can also be set via zstyle, like
# zstyle :prompt:shrink_path fish yes
@ -37,6 +40,8 @@ shrink_path () {
typeset -i short=0
typeset -i tilde=0
typeset -i named=0
typeset -i length=1
typeset ellipsis=""
if zstyle -t ':prompt:shrink_path' fish; then
lastfull=1
@ -53,6 +58,10 @@ shrink_path () {
while [[ $1 == -* ]]; do
case $1 in
--)
shift
break
;;
-f|--fish)
lastfull=1
short=1
@ -62,9 +71,13 @@ shrink_path () {
print 'Usage: shrink_path [-f -l -s -t] [directory]'
print ' -f, --fish fish-simulation, like -l -s -t'
print ' -l, --last Print the last directory''s full name'
print ' -s, --short Truncate directory names to the first character'
print ' -s, --short Truncate directory names to the number of characters given by -#. Without'
print ' -s, names are truncated without making them ambiguous.'
print ' -t, --tilde Substitute ~ for the home directory'
print ' -T, --nameddirs Substitute named directories as well'
print ' -# Truncate each directly to at least this many characters inclusive of the'
print ' ellipsis character(s) (defaulting to 1).'
print ' -e SYMBOL Postfix symbol(s) to indicate that a directory name had been truncated.'
print 'The long options can also be set via zstyle, like'
print ' zstyle :prompt:shrink_path fish yes'
return 0
@ -76,10 +89,18 @@ shrink_path () {
tilde=1
named=1
;;
-[0-9]|-[0-9][0-9])
length=${1/-/}
;;
-e)
shift
ellipsis="$1"
;;
esac
shift
done
typeset -i elllen=${#ellipsis}
typeset -a tree expn
typeset result part dir=${1-$PWD}
typeset -i i
@ -109,12 +130,20 @@ shrink_path () {
expn=(a b)
part=''
i=0
until [[ (( ${#expn} == 1 )) || $dir = $expn || $i -gt 99 ]] do
until [[ $i -gt 99 || ( $i -ge $((length - ellen)) || $dir == $part ) && ( (( ${#expn} == 1 )) || $dir = $expn ) ]]; do
(( i++ ))
part+=$dir[$i]
expn=($(echo ${part}*(-/)))
(( short )) && break
(( short )) && [[ $i -ge $((length - ellen)) ]] && break
done
typeset -i dif=$(( ${#dir} - ${#part} - ellen ))
if [[ $dif -gt 0 ]]
then
part+="$ellipsis"
else
part="$dir"
fi
result+="/$part"
cd -q $dir
shift tree