diff options
Diffstat (limited to 'scripts/library/parse_options.sh')
| -rw-r--r-- | scripts/library/parse_options.sh | 105 |
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 +}
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