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@@ -1,208 +0,0 @@
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-#!/bin/sh
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-
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-throw() {
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- echo "$*" >&2
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- exit 1
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-}
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-
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-BRIEF=0
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-LEAFONLY=0
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-PRUNE=0
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-NO_HEAD=0
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-NORMALIZE_SOLIDUS=0
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-
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-usage() {
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- echo
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- echo "Usage: JSON.sh [-b] [-l] [-p] [-s] [-h]"
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- echo
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- echo "-p - Prune empty. Exclude fields with empty values."
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- echo "-l - Leaf only. Only show leaf nodes, which stops data duplication."
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- echo "-b - Brief. Combines 'Leaf only' and 'Prune empty' options."
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- echo "-n - No-head. Do not show nodes that have no path (lines that start with [])."
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- echo "-s - Remove escaping of the solidus symbol (straight slash)."
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- echo "-h - This help text."
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- echo
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-}
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-
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-parse_options() {
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- set -- "$@"
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- local ARGN=$#
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- while [ "$ARGN" -ne 0 ]
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- do
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- case $1 in
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- -h) usage
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- exit 0
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- ;;
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- -b) BRIEF=1
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- LEAFONLY=1
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- PRUNE=1
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- ;;
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- -l) LEAFONLY=1
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- ;;
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- -p) PRUNE=1
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- ;;
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- -n) NO_HEAD=1
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- ;;
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- -s) NORMALIZE_SOLIDUS=1
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- ;;
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- ?*) echo "ERROR: Unknown option."
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- usage
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- exit 0
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- ;;
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- esac
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- shift 1
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- ARGN=$((ARGN-1))
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- done
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-}
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-
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-awk_egrep () {
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- local pattern_string=$1
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-
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- gawk '{
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- while ($0) {
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- start=match($0, pattern);
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- token=substr($0, start, RLENGTH);
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- print token;
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- $0=substr($0, start+RLENGTH);
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- }
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- }' pattern="$pattern_string"
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-}
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-
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-tokenize () {
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- local GREP
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- local ESCAPE
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- local CHAR
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-
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- if echo "test string" | egrep -ao --color=never "test" >/dev/null 2>&1
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- then
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- GREP='egrep -ao --color=never'
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- else
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- GREP='egrep -ao'
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- fi
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-
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- if echo "test string" | egrep -o "test" >/dev/null 2>&1
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- then
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- ESCAPE='(\\[^u[:cntrl:]]|\\u[0-9a-fA-F]{4})'
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- CHAR='[^[:cntrl:]"\\]'
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- else
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- GREP=awk_egrep
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- ESCAPE='(\\\\[^u[:cntrl:]]|\\u[0-9a-fA-F]{4})'
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- CHAR='[^[:cntrl:]"\\\\]'
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- fi
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-
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- local STRING="\"$CHAR*($ESCAPE$CHAR*)*\""
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- local NUMBER='-?(0|[1-9][0-9]*)([.][0-9]*)?([eE][+-]?[0-9]*)?'
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- local KEYWORD='null|false|true'
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- local SPACE='[[:space:]]+'
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-
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- # Force zsh to expand $A into multiple words
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- local is_wordsplit_disabled=$(unsetopt 2>/dev/null | grep -c '^shwordsplit$')
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- if [ $is_wordsplit_disabled != 0 ]; then setopt shwordsplit; fi
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- $GREP "$STRING|$NUMBER|$KEYWORD|$SPACE|." | egrep -v "^$SPACE$"
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- if [ $is_wordsplit_disabled != 0 ]; then unsetopt shwordsplit; fi
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-}
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-
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-parse_array () {
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- local index=0
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- local ary=''
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- read -r token
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- case "$token" in
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- ']') ;;
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- *)
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- while :
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- do
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- parse_value "$1" "$index"
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- index=$((index+1))
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- ary="$ary""$value"
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- read -r token
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- case "$token" in
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- ']') break ;;
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- ',') ary="$ary," ;;
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- *) throw "EXPECTED , or ] GOT ${token:-EOF}" ;;
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- esac
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- read -r token
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- done
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- ;;
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- esac
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- [ "$BRIEF" -eq 0 ] && value=$(printf '[%s]' "$ary") || value=
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- :
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-}
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-
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-parse_object () {
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- local key
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- local obj=''
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- read -r token
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- case "$token" in
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- '}') ;;
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- *)
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- while :
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- do
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- case "$token" in
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- '"'*'"') key=$token ;;
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- *) throw "EXPECTED string GOT ${token:-EOF}" ;;
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- esac
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- read -r token
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- case "$token" in
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- ':') ;;
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- *) throw "EXPECTED : GOT ${token:-EOF}" ;;
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- esac
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- read -r token
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- parse_value "$1" "$key"
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- obj="$obj$key:$value"
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- read -r token
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- case "$token" in
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- '}') break ;;
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- ',') obj="$obj," ;;
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- *) throw "EXPECTED , or } GOT ${token:-EOF}" ;;
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- esac
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- read -r token
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- done
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- ;;
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- esac
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- [ "$BRIEF" -eq 0 ] && value=$(printf '{%s}' "$obj") || value=
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- :
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-}
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-
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-parse_value () {
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- local jpath="${1:+$1,}$2" isleaf=0 isempty=0 print=0
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- case "$token" in
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- '{') parse_object "$jpath" ;;
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- '[') parse_array "$jpath" ;;
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- # At this point, the only valid single-character tokens are digits.
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- ''|[!0-9]) throw "EXPECTED value GOT ${token:-EOF}" ;;
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- *) value=$token
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- # if asked, replace solidus ("\/") in json strings with normalized value: "/"
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- [ "$NORMALIZE_SOLIDUS" -eq 1 ] && value=$(echo "$value" | sed 's#\\/#/#g')
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- isleaf=1
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- [ "$value" = '""' ] && isempty=1
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- ;;
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- esac
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- [ "$value" = '' ] && return
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- [ "$NO_HEAD" -eq 1 ] && [ -z "$jpath" ] && return
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-
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- [ "$LEAFONLY" -eq 0 ] && [ "$PRUNE" -eq 0 ] && print=1
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- [ "$LEAFONLY" -eq 1 ] && [ "$isleaf" -eq 1 ] && [ $PRUNE -eq 0 ] && print=1
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- [ "$LEAFONLY" -eq 0 ] && [ "$PRUNE" -eq 1 ] && [ "$isempty" -eq 0 ] && print=1
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- [ "$LEAFONLY" -eq 1 ] && [ "$isleaf" -eq 1 ] && \
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- [ $PRUNE -eq 1 ] && [ $isempty -eq 0 ] && print=1
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- [ "$print" -eq 1 ] && printf "[%s]\t%s\n" "$jpath" "$value"
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- :
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-}
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-
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-parse () {
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- read -r token
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- parse_value
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- read -r token
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- case "$token" in
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- '') ;;
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- *) throw "EXPECTED EOF GOT $token" ;;
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- esac
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-}
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-
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-if ([ "$0" = "$BASH_SOURCE" ] || ! [ -n "$BASH_SOURCE" ]);
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-then
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- parse_options "$@"
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- tokenize | parse
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-fi
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-
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-# vi: expandtab sw=2 ts=2
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