https://github.com/k4n4t4/opt_parser

option parser in shell script
https://github.com/k4n4t4/opt_parser

shellscript

Last synced: 8 months ago
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option parser in shell script

• Host: GitHub
• URL: https://github.com/k4n4t4/opt_parser
• Owner: k4n4t4
• License: cc0-1.0
• Created: 2025-04-12T05:26:43.000Z (about 1 year ago)
• Default Branch: main
• Last Pushed: 2025-04-29T06:33:26.000Z (about 1 year ago)
• Last Synced: 2025-04-29T07:40:06.939Z (about 1 year ago)
• Topics: shellscript
• Language: Shell
• Homepage:
• Size: 4.88 KB
• Stars: 0
• Watchers: 1
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

          
# opt_parser

外部コマンドの呼び出しやサブシェルの起動をしていないのでたぶん高速です。

シェルスクリプトでコマンドのオプションを解析するのにつかえます。

結果は$RETに入ります。

## e.g.

### script.sh

~~~bash

qesc() {

  : Omitted for brevity

}

opt_parser_get_arg_count() {

  : Omitted for brevity

}

opt_parser() {

  : Omitted for brevity

}

opt_parser p:1 params:3 -- "$@"

eval "set -- $RET"

while [ $# -gt 0 ]; do

    case "$1" in

        ( -- )

            shift

            break

            ;;

        ( -a )

            echo "option a"

            shift

            ;;

        ( -b )

            echo "option b"

            shift

            ;;

        ( -p )

            echo "option p"

            shift

            echo "    $1"

            shift

            ;;

        ( --abc )

            echo "option abc"

            shift

            ;;

        ( --params )

            echo "option params"

            shift

            echo "    $1"

            echo "    $2"

            echo "    $3"

            shift 3

            ;;

    esac

done

~~~

### command

`./script.sh -ab -p 123 --abc --params A B C`

### output

~~~

option a

option b

option p

    123

option abc

option params

    A

    B

    C

~~~