Send patches - preferably formatted by git format-patch - to patches at archlinux32 dot org.
summaryrefslogtreecommitdiff
path: root/scripts/library/parse_options.sh
diff options
context:
space:
mode:
Diffstat (limited to 'scripts/library/parse_options.sh')
-rw-r--r--scripts/library/parse_options.sh105
1 files changed, 105 insertions, 0 deletions
diff --git a/scripts/library/parse_options.sh b/scripts/library/parse_options.sh
new file mode 100644
index 00000000..48fd42cd
--- /dev/null
+++ b/scripts/library/parse_options.sh
@@ -0,0 +1,105 @@
+# getopt like parser
+parse_options() {
+ local short_options=$1; shift;
+ local long_options=$1; shift;
+ local ret=0;
+ local unused_options=""
+ local i
+
+ while [[ -n $1 ]]; do
+ if [[ ${1:0:2} = '--' ]]; then
+ if [[ -n ${1:2} ]]; then
+ local match=""
+ for i in ${long_options//,/ }; do
+ if [[ ${1:2} = ${i//:} ]]; then
+ match=$i
+ break
+ fi
+ done
+ if [[ -n $match ]]; then
+ local needsargument=0
+
+ [[ ${match} = ${1:2}: ]] && needsargument=1
+ [[ ${match} = ${1:2}:: && -n $2 && ${2:0:1} != "-" ]] && needsargument=1
+
+ if (( ! needsargument )); then
+ printf ' %s' "$1"
+ else
+ if [[ -n $2 ]]; then
+ printf ' %s ' "$1"
+ shift
+ printf "'%q" "$1"
+ while [[ -n $2 && ${2:0:1} != "-" ]]; do
+ shift
+ printf " %q" "$1"
+ done
+ printf "'"
+ else
+ printf "@SCRIPTNAME@: $(gettext "option %s requires an argument\n")" "'$1'" >&2
+ ret=1
+ fi
+ fi
+ else
+ echo "@SCRIPTNAME@: $(gettext "unrecognized option") '$1'" >&2
+ ret=1
+ fi
+ else
+ shift
+ break
+ fi
+ elif [[ ${1:0:1} = '-' ]]; then
+ for ((i=1; i<${#1}; i++)); do
+ if [[ $short_options =~ ${1:i:1} ]]; then
+ local needsargument=0
+
+ [[ $short_options =~ ${1:i:1}: && ! $short_options =~ ${1:i:1}:: ]] && needsargument=1
+ [[ $short_options =~ ${1:i:1}:: && \
+ ( -n ${1:$i+1} || ( -n $2 && ${2:0:1} != "-" ) ) ]] && needsargument=1
+
+ if (( ! needsargument )); then
+ printf ' -%s' "${1:i:1}"
+ else
+ if [[ -n ${1:$i+1} ]]; then
+ printf ' -%s ' "${1:i:1}"
+ printf "'%q" "${1:$i+1}"
+ while [[ -n $2 && ${2:0:1} != "-" ]]; do
+ shift
+ printf " %q" "$1"
+ done
+ printf "'"
+ else
+ if [[ -n $2 ]]; then
+ printf ' -%s ' "${1:i:1}"
+ shift
+ printf "'%q" "$1"
+ while [[ -n $2 && ${2:0:1} != "-" ]]; do
+ shift
+ printf " %q" "$1"
+ done
+ printf "'"
+
+ else
+ printf "@SCRIPTNAME@: $(gettext "option %s requires an argument\n")" "'-${1:i:1}'" >&2
+ ret=1
+ fi
+ fi
+ break
+ fi
+ else
+ echo "@SCRIPTNAME@: $(gettext "unrecognized option") '-${1:i:1}'" >&2
+ ret=1
+ fi
+ done
+ else
+ unused_options="${unused_options} '$1'"
+ fi
+ shift
+ done
+
+ printf " --"
+ [[ $unused_options ]] && printf ' %s' "${unused_options[@]}"
+ [[ $1 ]] && printf " '%s'" "$@"
+ printf "\n"
+
+ return $ret
+} \ No newline at end of file