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args.sh
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#
# args.sh
#
# Licensed under the MIT License <http://opensource.org/licenses/MIT>.
# Copyright (c) 2025 BLET Mickael.
#
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to deal
# in the Software without restriction, including without limitation the rights
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included
# in all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
# SOFTWARE.
#
declare -A ARGS
declare -A __ARGS
# Clean all map and array for recalled
args_clean() {
ARGS=()
__ARGS=()
__ARGS[program.name]=""
__ARGS[usage]=""
__ARGS[usage.description]=""
__ARGS[usage.epilog]=""
__ARGS[usage.width.padding]=2
__ARGS[usage.width.argument]=20
__ARGS[usage.width.separator]=2
__ARGS[usage.width.help]=56
__ARGS[alternative]="false"
# positional argument
__ARGS[argument.size]=0
# optional argument
__ARGS[option.size]=0
return 0
}
__args_already_exists() {
local type
local i=0
local j=0
while [[ ${i} -lt ${__ARGS[argument.size]} ]]; do
if [[ "$1" == "${__ARGS[argument.${i}.name]}" ]]; then
return 0;
fi
i=$((i + 1))
done
i=0
while [[ ${i} -lt ${__ARGS[option.size]} ]]; do
for type in "short" "long"; do
j=0
while [[ ${j} -lt ${__ARGS[option.${i}.${type}.size]} ]]; do
if [[ "$1" == "${__ARGS[option.${i}.${type}.${j}]}" ]]; then
return 0;
fi
j=$((j + 1))
done
done
i=$((i + 1))
done
return 1;
}
# Swap options
__args_swap_options() {
local i
local action
local metavar
local help
local default
local dest
local required
local action
local exists
local count
local choices
local nargs
local shorts
local longs
shorts=()
longs=()
# get parameters of option 1
action="${__ARGS[option.${1}.action]}"
metavar="${__ARGS[option.${1}.metavar]}"
help="${__ARGS[option.${1}.help]}"
default="${__ARGS[option.${1}.default]}"
dest="${__ARGS[option.${1}.dest]}"
required="${__ARGS[option.${1}.required]}"
action="${__ARGS[option.${1}.action]}"
exists="${__ARGS[option.${1}.exists]}"
count="${__ARGS[option.${1}.count]}"
choices="${__ARGS[option.${1}.choices]}"
nargs="${__ARGS[option.${1}.nargs]}"
i=0
while [[ ${i} -lt ${__ARGS[option.${1}.short.size]} ]]; do
shorts+=("${__ARGS[option.${1}.short.${i}]}")
i=$((i + 1))
done
i=0
while [[ ${i} -lt ${__ARGS[option.${1}.long.size]} ]]; do
longs+=("${__ARGS[option.${1}.long.${i}]}")
i=$((i + 1))
done
__ARGS[option.${1}.action]="${__ARGS[option.${2}.action]}"
__ARGS[option.${1}.metavar]="${__ARGS[option.${2}.metavar]}"
__ARGS[option.${1}.help]="${__ARGS[option.${2}.help]}"
__ARGS[option.${1}.default]="${__ARGS[option.${2}.default]}"
__ARGS[option.${1}.dest]="${__ARGS[option.${2}.dest]}"
__ARGS[option.${1}.required]="${__ARGS[option.${2}.required]}"
__ARGS[option.${1}.action]="${__ARGS[option.${2}.action]}"
__ARGS[option.${1}.exists]="${__ARGS[option.${2}.exists]}"
__ARGS[option.${1}.count]="${__ARGS[option.${2}.count]}"
__ARGS[option.${1}.choices]="${__ARGS[option.${2}.choices]}"
__ARGS[option.${1}.nargs]="${__ARGS[option.${2}.nargs]}"
i=0
while [[ ${i} -lt ${__ARGS[option.${2}.short.size]} ]]; do
__ARGS[option.${1}.short.${i}]="${__ARGS[option.${2}.short.${i}]}"
i=$((i + 1))
done
__ARGS[option.${1}.short.size]="${__ARGS[option.${2}.short.size]}"
i=0
while [[ ${i} -lt ${__ARGS[option.${2}.long.size]} ]]; do
__ARGS[option.${1}.long.${i}]="${__ARGS[option.${2}.long.${i}]}"
i=$((i + 1))
done
__ARGS[option.${1}.long.size]="${__ARGS[option.${2}.long.size]}"
__ARGS[option.${2}.action]="${action}"
__ARGS[option.${2}.metavar]="${metavar}"
__ARGS[option.${2}.help]="${help}"
__ARGS[option.${2}.default]="${default}"
__ARGS[option.${2}.dest]="${dest}"
__ARGS[option.${2}.required]="${required}"
__ARGS[option.${2}.action]="${action}"
__ARGS[option.${2}.exists]="${exists}"
__ARGS[option.${2}.count]="${count}"
__ARGS[option.${2}.choices]="${choices}"
__ARGS[option.${2}.nargs]="${nargs}"
for i in "${!shorts[@]}"; do
__ARGS[option.${2}.short.${i}]="${shorts[${i}]}"
done
__ARGS[option.${2}.short.size]="${#shorts[@]}"
for i in "${!longs[@]}"; do
__ARGS[option.${2}.long.${i}]="${longs[${i}]}"
done
__ARGS[option.${2}.long.size]="${#longs[@]}"
return 0
}
# Sort by asc optional arguments
__args_sort() {
local max="$((${__ARGS[option.size]} - 1))"
local i
local j
while [[ ${max} -gt 0 ]]; do
i=0
j=1
while [[ ${i} -lt ${max} ]]; do
if [[ 0 -ne ${__ARGS[option.${i}.short.size]} ]] && \
[[ 0 -ne ${__ARGS[option.${j}.short.size]} ]]; then
if [[ "false" == "${__ARGS[option.${i}.required]}" ]] && \
[[ "true" == "${__ARGS[option.${j}.required]}" ]]; then
__args_swap_options "${i}" "${j}"
elif [[ "false" == "${__ARGS[option.${i}.required]}" ]] && \
[[ "${__ARGS[option.${i}.short.0]}" > "${__ARGS[option.${j}.short.0]}" ]]; then
__args_swap_options "${i}" "${j}"
fi
elif [[ 0 -eq "${__ARGS[option.${i}.short.size]}" ]] && \
[[ 0 -eq "${__ARGS[option.${j}.short.size]}" ]] && \
[[ 0 -ne "${__ARGS[option.${i}.long.size]}" ]] && \
[[ 0 -ne "${__ARGS[option.${j}.long.size]}" ]]; then
if [[ "false" == "${__ARGS[option.${i}.required]}" ]] && \
[[ "true" == "${__ARGS[option.${j}.required]}" ]]; then
__args_swap_options "${i}" "${j}"
elif [[ "false" == "${__ARGS[option.${i}.required]}" ]] && \
[[ "${__ARGS[option.${i}.long.0]}" > "${__ARGS[option.${j}.long.0]}" ]]; then
__args_swap_options "${i}" "${j}"
fi
elif [[ 0 -eq "${__ARGS[option.${i}.short.size]}" ]]; then
__args_swap_options "${i}" "${j}"
fi
i=$((i + 1))
j=$((j + 1))
done
max=$((max - 1))
done
return 0
}
__args_parse_option_is_alternative_value() {
local index="$1"
local value="$2"
local name
local i
i=0
while [[ "${i}" -lt "${__ARGS[option.${index}.long.size]}" ]]; do
name="-${__ARGS[option.${index}.long.${i}]}"
if [[ "${value}" == "${name}" ]]; then
return 0
fi
i=$((i + 1))
done
return 1
}
__args_parse_option_is_alternative_assign_value() {
local index="$1"
local value="$2"
local name
local i
i=0
while [[ "${i}" -lt "${__ARGS[option.${index}.long.size]}" ]]; do
name="-${__ARGS[option.${index}.long.${i}]}"
if [[ "${value}" == "${name}="* ]]; then
return 0
fi
i=$((i + 1))
done
return 1
}
__args_parse_option_is_value() {
local index="$1"
local value="$2"
local type
local name
local i
for type in "short" "long"; do
i=0
while [[ "${i}" -lt "${__ARGS[option.${index}.${type}.size]}" ]]; do
[[ "short" == "${type}" ]] && name="-"
[[ "long" == "${type}" ]] && name="--"
name+="${__ARGS[option.${index}.${type}.${i}]}"
if [[ "${value}" == "${name}" ]]; then
return 0
fi
i=$((i + 1))
done
done
return 1
}
__args_parse_option_is_assign_value() {
local index="$1"
local value="$2"
local type
local name
local i
for type in "short" "long"; do
i=0
while [[ "${i}" -lt "${__ARGS[option.${index}.${type}.size]}" ]]; do
[[ "short" == "${type}" ]] && name="-"
[[ "long" == "${type}" ]] && name="--"
name+="${__ARGS[option.${index}.${type}.${i}]}"
if [[ "${value}" == "${name}="* ]]; then
return 0
fi
i=$((i + 1))
done
done
return 1
}
__args_parse_option_is_multi_short_value() {
local index="$1"
local value="$2"
local name
local i
i=0
while [[ "${i}" -lt "${__ARGS[option.${index}.short.size]}" ]]; do
name="${__ARGS[option.${index}.short.${i}]}"
if [[ "${value}" == "-${name}"* ]]; then
return 0
fi
i=$((i + 1))
done
return 1
}
__args_parse_option_on_multi_short_value() {
local index="$1"
local value="$2"
local name
local i
i=0
while [[ "${i}" -lt "${__ARGS[option.${index}.short.size]}" ]]; do
name="${__ARGS[option.${index}.short.${i}]}"
if [[ "${value}" == "${name}"* ]]; then
return 0
fi
i=$((i + 1))
done
return 1
}
__args_parse_assign_option_value() {
local index="$1"
local value="$2"
local type
local name
local i
for type in "short" "long"; do
i=0
while [[ "${i}" -lt "${__ARGS[option.${index}.${type}.size]}" ]]; do
name="${__ARGS[option.${index}.${type}.${i}]}"
ARGS[${name}]="${value}"
i=$((i + 1))
done
done
return 0
}
__args_parse_assign_option_multi_values() {
local index="$1"
local index_value="$2"
local value="$3"
local i
local type
local name
for type in "short" "long"; do
i=0
while [[ "${i}" -lt "${__ARGS[option.${index}.${type}.size]}" ]]; do
name="${__ARGS[option.${index}.${type}.${i}]}"
ARGS[${name}.${index_value}]="${value}"
if [[ -n "${ARGS[${name}]+abracadabra}" ]]; then
ARGS[${name}]="${ARGS[${name}]} ${value}"
else
ARGS[${name}]="${value}"
fi
i=$((i + 1))
done
done
return 0
}
# Set the program name
# params:
# $1 Name of program
# example:
# args_set_program.name "my_script"
args_set_program_name() {
__ARGS[program.name]="$1"
}
# Set a usage description
# params:
# $* Concat all arguments
# example:
# args_set_description "Your description " "message"
args_set_description() {
__ARGS[usage.description]="$*"
}
# Set a epilog description
# params:
# $* Concat all arguments
# example:
# args_set_epilog "Your epilog " "message"
args_set_epilog() {
__ARGS[usage.epilog]="$*"
}
# Set a full usage message
# example:
# args_set_usage "Your usage " "message"
args_set_usage() {
__ARGS[usage]="$*"
}
# Set the widths of usage message
# params:
# $1 Padding
# $2 Argument
# $3 Separator
# $4 Help
# example:
# args_set_usage_widths 2 20 2 56
# args_set_usage_widths 2 56 2 20
args_set_usage_widths() {
__ARGS[usage.width.padding]="$1"
__ARGS[usage.width.argument]="$2"
__ARGS[usage.width.separator]="$3"
__ARGS[usage.width.help]="$4"
}
# Set if args_parse_arguments can be accept a single '-' for a long option.
# param:
# $1 Alternative mode (true/false)
args_set_alternative() {
if [[ "true" == "$1" ]] || [[ "false" == "$1" ]]; then
__ARGS[alternative]="$1"
return 0
else
>&2 echo "$0: line ${BASH_LINENO[0]}: ${FUNCNAME[0]}: accept only true or false parameter"
return 1
fi
}
# Check if argument is exists in argv
# param:
# $1 Argument name
args_isexists() {
local i
local j
local type
local name
if [[ "$1" == "--"* ]]; then
name="${1:2}"
elif [[ "$1" == "-"* ]]; then
name="${1:1}"
else
name="$1"
fi
i=0
while [[ "${i}" -lt "${__ARGS[argument.size]}" ]]; do
if [[ "${name}" == "${__ARGS[argument.${i}.name]}" ]]; then
if [[ "true" == "${__ARGS[argument.${i}.exists]}" ]]; then
return 0
else
return 1
fi
fi
i=$((i + 1))
done
for type in "short" "long"; do
i=0
while [[ "${i}" -lt "${__ARGS[option.size]}" ]]; do
j=0
while [[ "${j}" -lt "${__ARGS[option.${i}.${type}.size]}" ]]; do
if [[ "${name}" == "${__ARGS[option.${i}.${type}.${j}]}" ]]; then
if [[ "true" == "${__ARGS[option.${i}.exists]}" ]]; then
return 0
else
return 1
fi
fi
j=$((j + 1))
done
i=$((i + 1))
done
done
>&2 echo "${__ARGS[program.name]:-$0}: line ${BASH_LINENO[0]}: ${FUNCNAME[0]}: '$1' is not a valid argument name"
return 1
}
# Check the count of argument in argv
# param:
# $1 Argument name
args_count() {
local name
if [[ "$1" == "--"* ]]; then
name="${1:2}"
elif [[ "$1" == "-"* ]]; then
name="${1:1}"
else
name="$1"
fi
local i=0
while [[ "${i}" -lt "${__ARGS[argument.size]}" ]]; do
if [[ "${name}" == "${__ARGS[argument.${i}.name]}" ]]; then
echo "${__ARGS[argument.${i}.count]}"
return 0
fi
i=$((i + 1))
done
local type
for type in "short" "long"; do
i=0
local j
while [[ "${i}" -lt "${__ARGS[option.size]}" ]]; do
j=0
while [[ "${j}" -lt "${__ARGS[option.${i}.${type}.size]}" ]]; do
if [[ "${name}" == "${__ARGS[option.${i}.${type}.${j}]}" ]]; then
echo "${__ARGS[option.${i}.count]}"
return 0
fi
j=$((j + 1))
done
i=$((i + 1))
done
done
>&2 echo "${__ARGS[program.name]:-$0}: line ${BASH_LINENO[0]}: ${FUNCNAME[0]}: '$1' is not a valid argument name"
return 1
}
# Add a argument
# option params:
# --action Action (append, count, store, store_false, store_true)
# --choices List of valid values (separate by spaces)
# --default Default value
# --dest Destination variable
# --flag Add a optional argument
# --help Usage helper
# --metavar Usage argument name (if not set use long/short name)
# --name Set the name of positionnal argument
# --nargs The number of arguments that should be consumed
# --required Is required if exists
# example:
# args_add_argument --help="help of FOO" --dest="FOO" -- "FOO"
args_add_argument() {
local action="store"
local choices=""
local default=""
local dest=""
local help=""
local metavar=""
local nargs=1
local required=false
local args=()
while [[ $# -ne 0 ]]; do
case $1 in
"--")
shift
break;;
"--action")
if [[ $# -le 1 ]]; then
>&2 echo "$0: line ${BASH_LINENO[0]}: ${FUNCNAME[0]}: '--action' option require a argument"
return 1
fi
action="${2,,}"
shift 2;;
"--action="*)
action="${1#*=}"
action="${action,,}"
shift;;
"--choices")
if [[ $# -le 1 ]]; then
>&2 echo "$0: line ${BASH_LINENO[0]}: ${FUNCNAME[0]}: '--choices' option require a argument"
return 1
fi
choices="$2"
shift 2;;
"--choices="*)
choices="${1#*=}"
shift;;
"--default")
if [[ $# -le 1 ]]; then
>&2 echo "$0: line ${BASH_LINENO[0]}: ${FUNCNAME[0]}: '--default' option require a argument"
return 1
fi
default="$2"
shift 2;;
"--default="*)
default="${1#*=}"
shift;;
"--dest")
if [[ $# -le 1 ]]; then
>&2 echo "$0: line ${BASH_LINENO[0]}: ${FUNCNAME[0]}: '--dest' option require a argument"
return 1
fi
dest="$2"
shift 2;;
"--dest="*)
dest="${1#*=}"
shift;;
"--help")
if [[ $# -le 1 ]]; then
>&2 echo "$0: line ${BASH_LINENO[0]}: ${FUNCNAME[0]}: '--help' option require a argument"
return 1
fi
help="$2"
shift 2;;
"--help="*)
help="${1#*=}"
shift;;
"--metavar")
if [[ $# -le 1 ]]; then
>&2 echo "$0: line ${BASH_LINENO[0]}: ${FUNCNAME[0]}: '--metavar' option require a argument"
return 1
fi
metavar="$2"
shift 2;;
"--metavar="*)
metavar="${1#*=}"
shift;;
"--nargs")
if [[ $# -le 1 ]]; then
>&2 echo "$0: line ${BASH_LINENO[0]}: ${FUNCNAME[0]}: '--nargs' option require a argument"
return 1
fi
nargs="$2"
shift 2;;
"--nargs="*)
nargs="${1#*=}"
shift;;
"--required")
required=true
shift;;
"--name")
if [[ $# -le 1 ]]; then
>&2 echo "$0: line ${BASH_LINENO[0]}: ${FUNCNAME[0]}: '--name' option require a argument"
return 1
fi
args+=("$2")
shift 2;;
"--name="*)
args+=("${1#*=}")
shift;;
"--flag")
if [[ $# -le 1 ]]; then
>&2 echo "$0: line ${BASH_LINENO[0]}: ${FUNCNAME[0]}: '--flag' option require a argument"
return 1
fi
args+=("$2")
shift 2;;
"--flag="*)
args+=("${1#*=}")
shift;;
"-"*)
>&2 echo "$0: line ${BASH_LINENO[0]}: ${FUNCNAME[0]}: unrecognized option '$1'"
return 1;;
*)
args+=("$1")
shift;;
esac
done
while [[ $# -ne 0 ]]; do
args+=("$1")
shift
done
# bad format of action
if [[ "${action}" != "append" ]] && \
[[ "${action}" != "count" ]] && \
[[ "${action}" != "store" ]] && \
[[ "${action}" != "store_false" ]] && \
[[ "${action}" != "store_true" ]]; then
>&2 echo "$0: line ${BASH_LINENO[0]}: ${FUNCNAME[0]}: unknown action '${action}'"
return 1
fi
# default and required
if [[ -n "${default}" ]] && [[ "true" == "${required}" ]]; then
>&2 echo "$0: line ${BASH_LINENO[0]}: ${FUNCNAME[0]}: '--default' used with '--required'"
return 1
fi
# store_true or store_false
if [[ "store_true" == "${action}" ]] || [[ "store_false" == "${action}" ]]; then
# default
if [[ -n "${default}" ]]; then
>&2 echo "$0: line ${BASH_LINENO[0]}: ${FUNCNAME[0]}: '--default' used with action '${action}'"
return 1
fi
# metavar
if [[ -n "${metavar}" ]]; then
>&2 echo "$0: line ${BASH_LINENO[0]}: ${FUNCNAME[0]}: '--metavar' used with action '${action}'"
return 1
fi
fi
# choises and not store
if [[ "${action}" != "store" ]] && [[ -n "${choices}" ]]; then
>&2 echo "$0: line ${BASH_LINENO[0]}: ${FUNCNAME[0]}: '--choices' used without action 'store'"
return 1
fi
# infinite mode
if [[ "+" == "${nargs}" ]] || [[ "*" == "${nargs}" ]]; then
if [[ "*" == "${nargs}" ]]; then
nargs=0
elif [[ "+" == "${nargs}" ]]; then
nargs=1
fi
action="infinite"
fi
if [[ "${nargs}" -gt 1 ]]; then
# default
if [[ -n "${default}" ]]; then
# get number of word
local word
local word_nb=0
for word in ${default}; do
word+=""
word_nb=$((word_nb + 1))
done
if [[ "${word_nb}" -ne "${nargs}" ]]; then
>&2 echo "$0: line ${BASH_LINENO[0]}: ${FUNCNAME[0]}: number word of '--default' (${word_nb}) is not the same of '--nargs' (${nargs})"
return 1
fi
fi
# choices
if [[ -n "${choices}" ]]; then
>&2 echo "$0: line ${BASH_LINENO[0]}: ${FUNCNAME[0]}: '--choices' can't used with '--nargs'"
return 1
fi
fi
# not name or flags
if [[ ${#args[@]} -eq 0 ]]; then
>&2 echo "$0: line ${BASH_LINENO[0]}: ${FUNCNAME[0]}: need a flag or argument name"
return 1
fi
local is_argument=false
local is_flag=false
local short_flags=()
local long_flags=()
local argument_name=""
local arg
# check format of argument
for arg in "${args[@]}"; do
if [[ "${arg}" == "--"* ]]; then
# already exists
if __args_already_exists "${arg:2}"; then
>&2 echo "$0: line ${BASH_LINENO[0]}: ${FUNCNAME[0]}: option name '${arg}' already exists"
return 1
fi
is_flag="true"
[[ ! "${long_flags[*]:-}" =~ (^|[[:space:]])"${arg:2}"($|[[:space:]]) ]] && long_flags+=("${arg:2}")
elif [[ "${arg}" == "-"* ]]; then
# size or digit of short
if [[ "${#arg}" -ne 2 ]] || [[ "${arg}" =~ ^"-"[[:digit:]]$ ]]; then
>&2 echo "$0: line ${BASH_LINENO[0]}: ${FUNCNAME[0]}: short option name '${arg}' not valid"
return 1
fi
# already exists
if __args_already_exists "${arg:1}"; then
>&2 echo "$0: line ${BASH_LINENO[0]}: ${FUNCNAME[0]}: option name '${arg}' already exists"
return 1
fi
is_flag="true"
[[ ! "${short_flags[*]:-}" =~ (^|[[:space:]])"${arg:1}"($|[[:space:]]) ]] && short_flags+=("${arg:1}")
else
# multi argument name
if [[ "true" == "${is_argument}" ]]; then
>&2 echo "$0: line ${BASH_LINENO[0]}: ${FUNCNAME[0]}: you can't have multi argument name"
return 1
fi
# empty argument name
if [[ -z "${arg}" ]]; then
>&2 echo "$0: line ${BASH_LINENO[0]}: ${FUNCNAME[0]}: name of argument is empty"
return 1
fi
# already exists
if __args_already_exists "${arg}"; then
>&2 echo "$0: line ${BASH_LINENO[0]}: ${FUNCNAME[0]}: argument name '${arg}' already exists"
return 1
fi
is_argument="true"
argument_name="${arg}"
fi
if [[ "true" == "${is_argument}" ]] && \
[[ "true" == "${is_flag}" ]]; then
>&2 echo "$0: line ${BASH_LINENO[0]}: ${FUNCNAME[0]}: you can't mixte argument and flag(s)"
return 1
fi
done
# sort flags
local max
max="$((${#long_flags[@]} - 1))"
local i j tmp
while [[ "${max}" -gt 0 ]]; do
i=0
j=1
while [[ "${i}" -lt "${max}" ]]; do
if [[ -n "${long_flags[${i}]}" ]] && \
[[ -n "${long_flags[${j}]}" ]]; then
if [[ "${long_flags[${i}]}" > "${long_flags[${j}]}" ]]; then
tmp="${long_flags[${i}]}"
long_flags[${i}]="${long_flags[${j}]}"
long_flags[${j}]="${tmp}"
fi
fi
i=$((i + 1))
j=$((j + 1))
done
max=$((max - 1))
done
max="$((${#short_flags[@]} - 1))"
while [[ "${max}" -gt 0 ]]; do
i=0
j=1
while [[ "${i}" -lt "${max}" ]]; do
if [[ -n "${short_flags[${i}]}" ]] && \
[[ -n "${short_flags[${j}]}" ]]; then
if [[ "${short_flags[${i}]}" > "${short_flags[${j}]}" ]]; then
tmp="${short_flags[${i}]}"
short_flags[${i}]="${short_flags[${j}]}"
short_flags[${j}]="${tmp}"
fi
fi
i=$((i + 1))
j=$((j + 1))
done
max=$((max - 1))
done
if [[ "true" == "${is_argument}" ]]; then
__ARGS[argument.${__ARGS[argument.size]}.name]="${argument_name}"
__ARGS[argument.${__ARGS[argument.size]}.help]="${help}"
__ARGS[argument.${__ARGS[argument.size]}.default]="${default}"
__ARGS[argument.${__ARGS[argument.size]}.dest]="${dest}"
__ARGS[argument.${__ARGS[argument.size]}.required]="${required}"
__ARGS[argument.${__ARGS[argument.size]}.exists]="false"
__ARGS[argument.${__ARGS[argument.size]}.count]=0
__ARGS[argument.${__ARGS[argument.size]}.choices]="${choices}"
__ARGS[argument.size]=$((${__ARGS[argument.size]} + 1))
else
for i in "${!short_flags[@]}"; do
__ARGS[option.${__ARGS[option.size]}.short.${i}]="${short_flags[${i}]}"
done
__ARGS[option.${__ARGS[option.size]}.short.size]="${#short_flags[@]}"
for i in "${!long_flags[@]}"; do
__ARGS[option.${__ARGS[option.size]}.long.${i}]="${long_flags[${i}]}"
done
__ARGS[option.${__ARGS[option.size]}.long.size]="${#long_flags[@]}"
if [[ "store_false" == "${action}" ]]; then
__ARGS[option.${__ARGS[option.size]}.default]="true"
elif [[ "store_true" == "${action}" ]]; then
__ARGS[option.${__ARGS[option.size]}.default]="false"
elif [[ -z "${default}" ]] && [[ "count" == "${action}" ]]; then
__ARGS[option.${__ARGS[option.size]}.default]="0"
else
__ARGS[option.${__ARGS[option.size]}.default]="${default}"
fi
__ARGS[option.${__ARGS[option.size]}.action]="${action}"
__ARGS[option.${__ARGS[option.size]}.metavar]="${metavar}"
__ARGS[option.${__ARGS[option.size]}.help]="${help}"
__ARGS[option.${__ARGS[option.size]}.dest]="${dest}"
__ARGS[option.${__ARGS[option.size]}.required]="${required}"
__ARGS[option.${__ARGS[option.size]}.exists]="false"
__ARGS[option.${__ARGS[option.size]}.count]=0
__ARGS[option.${__ARGS[option.size]}.choices]="${choices}"
__ARGS[option.${__ARGS[option.size]}.nargs]="${nargs}"
__ARGS[option.size]=$((${__ARGS[option.size]} + 1))
fi
return 0
}
# Show all values of arguments and options
args_debug_values() {
# get column max of options
local max_col=0
local key
local value
local i
local j
local count
local type
i=0
while [[ "${i}" -lt "${__ARGS[argument.size]}" ]]; do
count="${#__ARGS[argument.${i}.name]}"
if [[ ${count} -gt ${max_col} ]]; then
max_col=${count}
fi
i=$((i + 1))
done
i=0
while [[ "${i}" -lt "${__ARGS[option.size]}" ]]; do
key=""
for type in "short" "long"; do
j=0
while [[ "${j}" -lt "${__ARGS[option.${i}.${type}.size]}" ]]; do
[[ -n "${key}" ]] && key+=", "
[[ "short" == "${type}" ]] && key+="-"
[[ "long" == "${type}" ]] && key+="--"
key+="${__ARGS[option.${i}.${type}.${j}]}"
j=$((j + 1))
done
done
count=$((${#key}))
if [[ ${count} -gt ${max_col} ]]; then
max_col=${count}
fi
i=$((i + 1))
done
i=0
while [[ "${i}" -lt "${__ARGS[argument.size]}" ]]; do
printf -- "%-*s : %s (count: %s, exists: %s)\n" \
"${max_col}" \
"${__ARGS[argument.${i}.name]}" \
"${ARGS[${__ARGS[argument.${i}.name]}]:-}" \
"${__ARGS[argument.${i}.count]}" \
"${__ARGS[argument.${i}.exists]}"
i=$((i + 1))
done
i=0
while [[ "${i}" -lt "${__ARGS[option.size]}" ]]; do
key=""
for type in "short" "long"; do
j=0
while [[ "${j}" -lt "${__ARGS[option.${i}.${type}.size]}" ]]; do
[[ -n "${key}" ]] && key+=", "
[[ "short" == "${type}" ]] && key+="-"
[[ "long" == "${type}" ]] && key+="--"
key+="${__ARGS[option.${i}.${type}.${j}]}"
j=$((j + 1))
done
done
local name=""
if [[ "${__ARGS[option.${i}.long.size]}" -ne 0 ]]; then
name="${__ARGS[option.${i}.long.0]}"
elif [[ "${__ARGS[option.${i}.short.size]}" -ne 0 ]]; then
name="${__ARGS[option.${i}.short.0]}"
fi
printf -- "%-*s : %s (count: %s, exists: %s)\n" \
"${max_col}" \
"${key}" \
"${ARGS[${name}]:-}" \
"${__ARGS[option.${i}.count]}" \
"${__ARGS[option.${i}.exists]}"
i=$((i + 1))
done
return 0
}
# Show/Generate usage message
# params:
# $1 Name/Path of script
args_usage() {
if [[ -n "${__ARGS[usage]}" ]]; then
echo "${__ARGS[usage]}"
else
__args_sort
local i
local j
local str
local max_col
local current_col=0
local has_max_col=false
max_col="$((${__ARGS[usage.width.padding]} + ${__ARGS[usage.width.argument]} + ${__ARGS[usage.width.separator]} + ${__ARGS[usage.width.help]}))"
# generate usage message
if [[ -n "${__ARGS[program.name]}" ]]; then
str="usage: ${__ARGS[program.name]##*/}"
else
str="usage: ${1##*/}"
fi
local usage_basename_length="${#str}"
current_col="${usage_basename_length}"
i=0
while [[ "${i}" -lt "${__ARGS[option.size]}" ]]; do
local option=""
option+=" "
if [[ "false" == "${__ARGS[option.${i}.required]}" ]]; then
option+="["
fi
if [[ "${__ARGS[option.${i}.short.size]}" -ne 0 ]]; then
option+="-${__ARGS[option.${i}.short.0]}"
elif [[ "${__ARGS[option.${i}.long.size]}" -ne 0 ]]; then
option+="--${__ARGS[option.${i}.long.0]}"
fi
if [[ "store" == "${__ARGS[option.${i}.action]}" ]] || \
[[ "append" == "${__ARGS[option.${i}.action]}" ]] || \
[[ "infinite" == "${__ARGS[option.${i}.action]}" ]]; then
option+=" "
if [[ -n "${__ARGS[option.${i}.metavar]}" ]]; then
option+="${__ARGS[option.${i}.metavar]}"
else
if [[ "${__ARGS[option.${i}.long.size]}" -ne 0 ]]; then
local option_argument="${__ARGS[option.${i}.long.0]^^}"
option+="${option_argument//-/_}"
else
option+="${__ARGS[option.${i}.short.0]^^}"
fi
if [[ "infinite" == "${__ARGS[option.${i}.action]}" ]]; then
option+="..."
fi
fi
fi
if [[ "false" == "${__ARGS[option.${i}.required]}" ]]; then
option+="]"
fi
if [[ "$((current_col + ${#option}))" -gt "${max_col}" ]]; then
has_max_col=true
str+=$'\n'
j=0
while [[ "${j}" -lt "${usage_basename_length}" ]]; do
str+=" "
j=$((j + 1))
done
current_col="${usage_basename_length}"
fi
str+="${option}"
current_col="$((current_col + ${#option}))"
i=$((i + 1))
done
if [[ "${__ARGS[argument.size]}" -ne 0 ]]; then
if ${has_max_col} || [[ "$((current_col + 3))" -gt "${max_col}" ]]; then