110 lines
2.0 KiB
Bash
110 lines
2.0 KiB
Bash
[ -z "$N" ] && . /etc/functions.sh
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# functions for parsing and generating json
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json_init() {
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[ -n "$JSON_UNSET" ] && eval "unset $JSON_UNSET"
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export -- JSON_SEQ=0 JSON_STACK= JSON_CUR="JSON_VAR" JSON_UNSET=
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}
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json_add_generic() {
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local type="$1"
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local var="$2"
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local val="$3"
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local cur="${4:-$JSON_CUR}"
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export ${NO_EXPORT:+-n} -- "${cur}_$var=$val"
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export ${NO_EXPORT:+-n} -- "TYPE_${cur}_$var=$type"
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append JSON_UNSET "${cur}_$var TYPE_${cur}_$var"
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append "KEYS_${cur}" "$var"
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}
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json_add_table() {
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JSON_SEQ=$(($JSON_SEQ + 1))
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append JSON_STACK "$JSON_CUR"
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local table="JSON_TABLE$JSON_SEQ"
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export ${NO_EXPORT:+-n} -- "UP_$table=$JSON_CUR"
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JSON_CUR="$table"
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}
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json_add_object() {
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local cur="$JSON_CUR"
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json_add_table
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json_add_generic object "$1" "$JSON_CUR" "$cur"
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}
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json_close_object() {
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local oldstack="$JSON_STACK"
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export "KEYS_${JSON_CUR}"
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JSON_CUR="${JSON_STACK##* }"
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JSON_STACK="${JSON_STACK% *}"
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[[ "$oldstack" == "$JSON_STACK" ]] && JSON_STACK=
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}
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json_add_array() {
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local cur="$JSON_CUR"
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json_add_table
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json_add_generic array "$1" "$JSON_CUR" "$cur"
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}
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json_close_array() {
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json_close_object
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}
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json_add_string() {
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json_add_generic string "$1" "$2"
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}
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json_add_int() {
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json_add_generic int "$1" "$2"
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}
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json_add_boolean() {
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json_add_generic boolean "$1" "$2"
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}
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# functions read access to json variables
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json_load() {
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eval `jshn -r "$1"`
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}
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json_dump() {
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jshn -w
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}
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json_get_type() {
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local dest="$1"
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local var="$2"
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eval "export ${NO_EXPORT:+-n} -- \"$dest=\${TYPE_${JSON_CUR}_$var}\""
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}
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json_get_var() {
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local dest="$1"
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local var="$2"
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eval "export ${NO_EXPORT:+-n} -- \"$dest=\${${JSON_CUR}_$var}\""
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}
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json_select() {
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local target="$1"
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local type
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[ -z "$1" ] && {
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JSON_CUR="JSON_VAR"
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return
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}
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[[ "$1" == ".." ]] && {
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eval "JSON_CUR=\"\${UP_$JSON_CUR}\""
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return;
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}
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json_get_type type "$target"
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case "$type" in
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object|array)
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json_get_var JSON_CUR "$target"
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;;
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*)
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echo "WARNING: Variable '$target' does not exist or is not an array/object"
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;;
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esac
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}
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