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Fixed problem where sed may not like the -E switch since it isn’t supported in all versions of sed.

pull/945/head
Andrew Miller 2017-04-24 15:57:30 +09:00
parent e62611ba0d
commit 4bd9ecf6a0
1 changed files with 10 additions and 3 deletions
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13
plugins/available/alias-completion.plugin.bash
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@ -16,20 +16,27 @@ about-plugin 'Automatic completion of aliases'
function alias_completion {
local namespace="alias_completion"
# sed switch -E is BSD specific and only added to UNIX sed after v4.2
# fallback to -r if -E does not work
local sed_regex_switch='E'
if ! sed -${sed_regex_switch} '' /dev/null > /dev/null 2>&1; then
sed_regex_switch='r'
fi
# parse function based completion definitions, where capture group 2 => function and 3 => trigger
local compl_regex='complete( +[^ ]+)* -F ([^ ]+) ("[^"]+"|[^ ]+)'
# parse alias definitions, where capture group 1 => trigger, 2 => command, 3 => command arguments
local alias_regex="alias( -- | )([^=]+)='(\"[^\"]+\"|[^ ]+)(( +[^ ]+)*)'"
# create array of function completion triggers, keeping multi-word triggers together
eval "local completions=($(complete -p | sed -Ene "/$compl_regex/s//'\3'/p"))"
eval "local completions=($(complete -p | sed -${sed_regex_switch}ne "/$compl_regex/s//'\3'/p"))"
(( ${#completions[@]} == 0 )) && return 0
# create temporary file for wrapper functions and completions
rm -f "/tmp/${namespace}-*.tmp" # preliminary cleanup
local tmp_file; tmp_file="$(mktemp "/tmp/${namespace}-${RANDOM}XXX.tmp")" || return 1
local completion_loader; completion_loader="$(complete -p -D 2>/dev/null | sed -Ene 's/.* -F ([^ ]*).*/\1/p')"
local completion_loader; completion_loader="$(complete -p -D 2>/dev/null | sed -${sed_regex_switch}ne 's/.* -F ([^ ]*).*/\1/p')"
# read in "<alias> '<aliased command>' '<command args>'" lines from defined aliases
local line; while read line; do
@ -77,6 +84,6 @@ function alias_completion {
# replace completion trigger by alias
new_completion="${new_completion% *} $alias_name"
echo "$new_completion" >> "$tmp_file"
done < <(alias -p | sed -Ene "s/$alias_regex/\2 '\3' '\4'/p")
done < <(alias -p | sed -${sed_regex_switch}ne "s/$alias_regex/\2 '\3' '\4'/p")
source "$tmp_file" && rm -f "$tmp_file"
}; alias_completion