diff options
Diffstat (limited to 'package/jshn/files')
-rw-r--r-- | package/jshn/files/jshn.sh | 109 |
1 files changed, 109 insertions, 0 deletions
diff --git a/package/jshn/files/jshn.sh b/package/jshn/files/jshn.sh new file mode 100644 index 000000000..2dddfe8bf --- /dev/null +++ b/package/jshn/files/jshn.sh @@ -0,0 +1,109 @@ +[ -z "$N" ] && . /etc/functions.sh + +# functions for parsing and generating json + +json_init() { + [ -n "$JSON_UNSET" ] && eval "unset $JSON_UNSET" + export -- JSON_SEQ=0 JSON_STACK= JSON_CUR="JSON_VAR" JSON_UNSET= +} + +json_add_generic() { + local type="$1" + local var="$2" + local val="$3" + local cur="${4:-$JSON_CUR}" + + export ${NO_EXPORT:+-n} -- "${cur}_$var=$val" + export ${NO_EXPORT:+-n} -- "TYPE_${cur}_$var=$type" + append JSON_UNSET "${cur}_$var TYPE_${cur}_$var" + append "KEYS_${cur}" "$var" +} + +json_add_table() { + JSON_SEQ=$(($JSON_SEQ + 1)) + append JSON_STACK "$JSON_CUR" + local table="JSON_TABLE$JSON_SEQ" + export ${NO_EXPORT:+-n} -- "UP_$table=$JSON_CUR" + JSON_CUR="$table" +} + +json_add_object() { + local cur="$JSON_CUR" + json_add_table + json_add_generic object "$1" "$JSON_CUR" "$cur" +} + +json_close_object() { + local oldstack="$JSON_STACK" + export "KEYS_${JSON_CUR}" + JSON_CUR="${JSON_STACK##* }" + JSON_STACK="${JSON_STACK% *}" + [[ "$oldstack" == "$JSON_STACK" ]] && JSON_STACK= +} + +json_add_array() { + local cur="$JSON_CUR" + json_add_table + json_add_generic array "$1" "$JSON_CUR" "$cur" +} + +json_close_array() { + json_close_object +} + +json_add_string() { + json_add_generic string "$1" "$2" +} + +json_add_int() { + json_add_generic int "$1" "$2" +} + +json_add_boolean() { + json_add_generic boolean "$1" "$2" +} + +# functions read access to json variables + +json_load() { + eval `jshn -r "$1"` +} + +json_dump() { + jshn -w +} + +json_get_type() { + local dest="$1" + local var="$2" + eval "export ${NO_EXPORT:+-n} -- \"$dest=\${TYPE_${JSON_CUR}_$var}\"" +} + +json_get_var() { + local dest="$1" + local var="$2" + eval "export ${NO_EXPORT:+-n} -- \"$dest=\${${JSON_CUR}_$var}\"" +} + +json_select() { + local target="$1" + local type + + [ -z "$1" ] && { + JSON_CUR="JSON_VAR" + return + } + [[ "$1" == ".." ]] && { + eval "JSON_CUR=\"\${UP_$JSON_CUR}\"" + return; + } + json_get_type type "$target" + case "$type" in + object|array) + json_get_var JSON_CUR "$target" + ;; + *) + echo "WARNING: Variable '$target' does not exist or is not an array/object" + ;; + esac +} |