Reassemble arguments (support-most-cases implementation) in POSIX shell - Transforming "$*" into "$@"
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| #!/bin/sh | |
| # SPDX-License-Identifier: MIT | |
| ## Copyright (C) 2016 Przemyslaw Pawelczyk <przemoc@gmail.com> | |
| ## | |
| ## This script is licensed under the terms of the MIT license. | |
| ## https://opensource.org/licenses/MIT | |
| # Reassemble arguments (support-most-cases implementation) | |
| ARGC=$# | |
| argcon= | |
| argkey= | |
| argval= | |
| while [ $ARGC -gt 0 ]; do | |
| arg=$1 | |
| shift | |
| ARGC=$((ARGC - 1)) | |
| case "$arg" in | |
| '"'*'"') | |
| if [ "$argcon" = "'" ]; then | |
| argval="$argval $arg" | |
| elif [ "$argcon" = '"' ]; then | |
| echo "$0: Unsupported syntax!" >&2 | |
| else | |
| arg=${arg#\"} | |
| arg=${arg%\"} | |
| set -- "$@" "$arg" | |
| fi | |
| ;; | |
| "'"*"'") | |
| if [ "$argcon" = '"' ]; then | |
| argval="$argval $arg" | |
| elif [ "$argcon" = "'" ]; then | |
| echo "$0: Unsupported syntax!" >&2 | |
| else | |
| arg=${arg#\'} | |
| arg=${arg%\'} | |
| set -- "$@" "$arg" | |
| fi | |
| ;; | |
| '"'|"'") | |
| if [ -n "$argcon" ]; then | |
| if [ "$argcon" = "$arg" ]; then | |
| argval="$argval ${arg%$argcon}" | |
| set -- "$@" "$argkey$argval" | |
| argcon= | |
| argkey= | |
| argval= | |
| else | |
| argval="$argval $arg" | |
| fi | |
| else | |
| argcon=$arg | |
| argkey= | |
| argval= | |
| fi | |
| ;; | |
| '"'*) | |
| if [ "$argcon" = "'" ]; then | |
| if [ "${arg%$argcon}" != "$arg" ] && [ "${arg%$argcon}" = "${arg%%$argcon*}" ]; then | |
| argval="$argval ${arg%$argcon}" | |
| set -- "$@" "$argkey$argval" | |
| argcon= | |
| argkey= | |
| argval= | |
| else | |
| argval="$argval $arg" | |
| fi | |
| elif [ "$argcon" = '"' ]; then | |
| echo "$0: Unsupported syntax!" >&2 | |
| else | |
| argcon='"' | |
| argkey= | |
| argval=${arg#\"} | |
| fi | |
| ;; | |
| "'"*) | |
| if [ "$argcon" = '"' ]; then | |
| if [ "${arg%$argcon}" != "$arg" ] && [ "${arg%$argcon}" = "${arg%%$argcon*}" ]; then | |
| argval="$argval ${arg%$argcon}" | |
| set -- "$@" "$argkey$argval" | |
| argcon= | |
| argkey= | |
| argval= | |
| else | |
| argval="$argval $arg" | |
| fi | |
| elif [ "$argcon" = "'" ]; then | |
| echo "$0: Unsupported syntax!" >&2 | |
| else | |
| argcon="'" | |
| argkey= | |
| argval=${arg#\'} | |
| fi | |
| ;; | |
| *=*) | |
| if [ -n "$argcon" ]; then | |
| if [ "${arg%$argcon}" != "$arg" ] && [ "${arg%$argcon}" = "${arg%%$argcon*}" ]; then | |
| argval="$argval ${arg%$argcon}" | |
| set -- "$@" "$argkey$argval" | |
| argcon= | |
| argkey= | |
| argval= | |
| else | |
| argval="$argval $arg" | |
| fi | |
| else | |
| argkey="${arg%%=*}=" | |
| argval=${arg#*=} | |
| case "$argval" in | |
| '"'*'"') | |
| argval=${argval#\"} | |
| argval=${argval%\"} | |
| set -- "$@" "$argkey$argval" | |
| ;; | |
| "'"*"'") | |
| argval=${argval#\'} | |
| argval=${argval%\'} | |
| set -- "$@" "$argkey$argval" | |
| ;; | |
| '"'*) | |
| argcon='"' | |
| argval=${argval#\"} | |
| ;; | |
| "'"*) | |
| argcon="'" | |
| argval=${argval#\'} | |
| ;; | |
| *) | |
| set -- "$@" "$argkey$argval" | |
| ;; | |
| esac | |
| fi | |
| ;; | |
| *) | |
| if [ -n "$argcon" ]; then | |
| if [ "${arg%$argcon}" != "$arg" ] && [ "${arg%$argcon}" = "${arg%%$argcon*}" ]; then | |
| argval="$argval ${arg%$argcon}" | |
| set -- "$@" "$argkey$argval" | |
| argcon= | |
| argkey= | |
| argval= | |
| else | |
| argval="$argval $arg" | |
| fi | |
| else | |
| set -- "$@" "$arg" | |
| fi | |
| ;; | |
| esac | |
| done | |
| if [ -n "$argcon" ]; then | |
| set -- "$@" "$argkey$argval" | |
| echo "$0: Unsupported syntax!" >&2 | |
| fi | |
| # show current arguments | |
| for I in "$@"; do | |
| echo ">$I<" | |
| done |