diff options
| -rw-r--r-- | src/argparser.bash | 259 |
1 files changed, 243 insertions, 16 deletions
diff --git a/src/argparser.bash b/src/argparser.bash index e19d4fb..b50e859 100644 --- a/src/argparser.bash +++ b/src/argparser.bash @@ -70,6 +70,48 @@ function args_init } +# Look up function for parsed arguments +# +# @param $1:str Action: has, count, null or get +# @param $2:str Option name +# @exit 0 on success/true, 1 on false, 2 on failure +# +# @action has Checks if the option is used +# @action count Gets the number of time the option is used, :int is returned +# @action null Checks if the option value at index $3:int is null +# @action get Gets option value of indices $3…, all values if $# = 2, :(str) is returned +function args_option +{ + local rc dir="${args_opts}/$2" i + if [ "$1" = has ]; then + [ -e "${dir}" ] + return $? + elif [ "$1" = count ]; then + if [ -e "${dir}" ]; then + echo "$(wc -l < "${dir}/null")" + return 0 + else + echo 0 + return 1 + fi + elif [ "$1" = null ]; then + rc="$(head -n $(( $3 + 1 )) < "${dir}/null" | tail -n 1)" + return (( 1 - $rc )) + elif [ "$1" = get ]; then + shift 2 + if [ $# = 0 ]; then + cat "${dir}/data" + else + for i in "$@"; do + head -n $(( $i + 1 )) < "${dir}/data" | tail -n 1 + done + fi + return 0 + fi + return 2 +} + + # Disposes of resources, you really should be doing this when you are done with this module # # @param $1:int The ID of process that alloceted the resources, empty for the current process @@ -224,10 +266,10 @@ function args_add_argumentless { local default="$1" help="$2" std alts alt shift 2 - args_options+=( ${args_ARGUMENTLESS} "" "${help}" ${#args_opts_alts[@]} $# ) - args_opts_alts+=( "$@" ) alts=( "$@" ) std="${alts[$default]}" + args_options+=( ${args_ARGUMENTLESS} "" "${help}" ${#args_opts_alts[@]} $# "${std}" ) + args_opts_alts+=( "$@" ) for alt in "${alts[@]}"; do echo "$std" > "${args_optmap}/${alt}" echo ${args_ARGUMENTLESS} >> "${args_optmap}/${alt}" @@ -248,10 +290,10 @@ function args_add_argumented if [ "${arg}" = "" ]; then arg="ARG" fi - args_options+=( ${args_ARGUMENTED} "${arg}" "${help}" ${#args_opts_alts[@]} $# ) - args_opts_alts+=( "$@" ) alts=( "$@" ) std="${alts[$default]}" + args_options+=( ${args_ARGUMENTED} "${arg}" "${help}" ${#args_opts_alts[@]} $# "${std}" ) + args_opts_alts+=( "$@" ) for alt in "${alts[@]}"; do echo "$std" > "${args_optmap}/${alt}" echo ${args_ARGUMENTED} >> "${args_optmap}/${alt}" @@ -272,10 +314,10 @@ function args_add_variadic if [ "${arg}" = "" ]; then arg="ARG" fi - args_options+=( ${args_VARIADIC} "${arg}" "${help}" ${#args_opts_alts[@]} $# ) - args_opts_alts+=( "$@" ) alts=( "$@" ) std="${alts[$default]}" + args_options+=( ${args_VARIADIC} "${arg}" "${help}" ${#args_opts_alts[@]} $# "${std}" ) + args_opts_alts+=( "$@" ) for alt in "${alts[@]}"; do echo "$std" > "${args_optmap}/${alt}" echo ${args_VARIADIC} >> "${args_optmap}/${alt}" @@ -319,11 +361,11 @@ function help echo >> "${args_out}" fi - n=$(( ${#args_options[@]} / 5 )) + n=$(( ${#args_options[@]} / 6 )) while (( $i < $n )); do - help="${args_options[(( $i * 5 + 2 ))]}" - start=${args_options[(( $i * 5 + 3 ))]} - count=${args_options[(( $i * 5 + 4 ))]} + help="${args_options[(( $i * 6 + 2 ))]}" + start=${args_options[(( $i * 6 + 3 ))]} + count=${args_options[(( $i * 6 + 4 ))]} (( i++ )) if [ "${help}" = "" ]; then continue @@ -341,11 +383,11 @@ function help echo -e "\e[01mSYNOPSIS:\e[21m" >> "${args_out}" i=0 while (( $i < $n )); do - type=${args_options[(( $i * 5 + 0 ))]} - arg="${args_options[(( $i * 5 + 1 ))]}" - help="${args_options[(( $i * 5 + 2 ))]}" - start=${args_options[(( $i * 5 + 3 ))]} - count=${args_options[(( $i * 5 + 4 ))]} + type=${args_options[(( $i * 6 + 0 ))]} + arg="${args_options[(( $i * 6 + 1 ))]}" + help="${args_options[(( $i * 6 + 2 ))]}" + start=${args_options[(( $i * 6 + 3 ))]} + count=${args_options[(( $i * 6 + 4 ))]} (( i++ )) if [ "${help}" = "" ]; then continue @@ -382,7 +424,7 @@ function help empty="${empty::$col}" i=0 while (( $i < $n )); do - help="${args_options[(( $i * 5 + 2 ))]}" + help="${args_options[(( $i * 6 + 2 ))]}" (( i++ )) if [ "${help}" = "" ]; then continue @@ -408,3 +450,188 @@ function help echo >> "${args_out}" } + +# Parse arguments +# +# @param $@:(str) The command line arguments, should exclude the execute file +# @exit Whether no unrecognised option is used +function parse +{ + local nulqueue=() argqueue=() optqueue=() queue=() opt arg _arg argnull + local dashed=0 tmpdashed=0 get=0 dontget=0 rc=0 i n more std sign type + + args_argcount=$# + args_unrecognised_count=0 + + while [ ! $# = 0 ]; do + while [ ! $# = 0 ]; do + arg="$1" + shift 1 + _arg="${arg/+/-}" + if [ ! $get = 0 ] && [ $dontget = 0 ]; then + (( get-- )) + argqueue+=( "$arg" ) + nulqueue+=( 0 ) + elif [ $tmpdashed = 1 ]; then + args_files+=( "$arg" ) + tmpdashed=0 + elif [ $dashed = 1 ]; then + args_files+=( "$arg" ) + elif [ "$arg" = "++" ]; then + tmpdashed=1 + elif [ "$arg" = "--" ]; then + dashed=1 + elif (( ${#arg} > 1 )) && [ "${_arg::1}" = "-" ]; then + if (( ${#arg} > 2 )) && [ "${_arg::1}" = "${_arg:1:1}" ]; then + if [ ! $dontget = 0 ]; then + (( dontget-- )) + elif [ ! -e "${args_optmap}/${arg}" ]; then + (( args_unrecognised_count++ )) + if (( args_unrecognised_count <= 5 )); then + echo "${args_program}: warning: unrecognised option ${arg}" >> "${args_out}" + fi + rc=1 + else + type="$(tail -n 1 < "${args_optmap}/${arg}")" + if [ $type = ${args_ARGUMENTLESS} ]; then + optqueue+=( "${arg}" ) + argqueue+=( "" ) + nulqueue+=( 1 ) + elif []; then + _arg="${arg%%=*}" + type="$(tail -n 1 < "${args_optmap}/${_arg}")" + if (( $type >= ${args_ARGUMENTED} )); then + optqueue+=( "${_arg}" ) + argqueue+=( "${arg#*=}" ) + nulqueue+=( 0 ) + if [ $type = ${args_VARIADIC} ]; then + dashed=1 + fi + else + (( args_unrecognised_count++ )) + if (( args_unrecognised_count <= 5 )); then + echo "${args_program}: warning: unrecognised option ${arg}" >> "${args_out}" + fi + rc=1 + fi + elif [ $type = ${args_ARGUMENTED} ]; then + optqueue+=( "${arg}" ) + (( get++ )) + else + optqueue+=( "${arg}" ) + argqueue+=( "" ) + nulqueue+=( 1 ) + dashed=1 + fi + fi + else + sign="${_arg::1}" + i=1 + n=${#arg} + while [ ! $i = $n ]; do + _arg="$sign${arg:$i:1}" + (( i++ )) + if [ -e "${args_optmap}/${_arg}" ]; then + type="$(tail -n 1 < "${args_optmap}/${_arg}")" + optqueue+=( "${_arg}" ) + if [ $type = ${args_ARGUMENTLESS} ]; then + argqueue+=( "" ) + nulqueue+=( 1 ) + elif [ $type = ${args_ARGUMENTED} ]; then + if [ ${#arg} == $i ]; then + (( get++ )) + else + argqueue+=( "${arg:i}" ) + nulqueue+=( 0 ) + fi + break + else + if [ ${#arg} == $i ]; then + argqueue+=( "" ) + nulqueue+=( 1 ) + else + argqueue+=( "${arg:i}" ) + nulqueue+=( 0 ) + fi + dashed=1 + break + fi + else + (( args_unrecognised_count++ )) + if (( args_unrecognised_count <= 5 )); then + echo "${args_program}: warning: unrecognised option ${arg}" >> "${args_out}" + fi + rc=1 + fi + done + fi + else + args_files+=( "$arg" ) + fi + done + set "${queue[@]}" + queue=() + done + + i=0 + n=${#optqueue[@]} + while (( $i < $n )); do + opt="${optqueue[$i]}" + arg="" + (( ${#argqueue[@]} > $i )) && [ ${nulqueue[$i]} = 1 ] + argnull=$? + if [ $argnull = 0 ]; then + arg="${argqueue[$i]}" + fi + (( i++ )) + opt="$(head -n 1 < "${args_optmap}/${opt}")" + if [ ! -e "${args_opts}/${opt}" ]; then + mkdir -p "${args_opts}/${opt}" + echo -n "${args_opts}/${opt}/data" + echo -n "${args_opts}/${opt}/null" + fi + if (( ${#argqueue[@]} >= $i )); then + echo "$arg" >> "${args_opts}/${opt}/data" + echo "$argnull" >> "${args_opts}/${opt}/null" + fi + done + + i=0 + n=$(( ${#arg_options[@]} / 6 )) + while (( $i < $n )); do + type=${args_options[(( $i * 6 + 0 ))]} + std=${args_options[(( $i * 6 + 5 ))]} + (( i++ )) + if [ $type = ${args_VARIADIC} ] && [ -e "${args_opts}/${std}" ]; then + if [ "$(head -n 1 < "${args_opts}/${std}/null")" = 1 ]; then + rm "${args_opts}/${std}/data" + rm "${args_opts}/${std}/null" + fi + for arg in "${args_files[@]}"; do + echo "${arg}" >> "${args_opts}/${std}/data" + echo 0 >> "${args_opts}/${std}/null" + done + args_files=() + break + fi + done + + args_message="${args_files[*]}" + args_has_message="${#args_files[@]}" + if [[ ! $args_has_message = 0 ]]; then + args_has_message=1 + fi + + if (( ${args_unrecognised_count} > 5 )); then + more=$(( ${args_unrecognised_count} - 1 )) + echo -n "${args_program}: warning: ${more} more unrecognised " >> "${args_out}" + if [ ! $more = 1 ]; then + echo "options" >> "${args_out}" + else + echo "option" >> "${args_out}" + fi + fi + + return $rc +} + |