X-Git-Url: http://git.archive.openwrt.org/?p=project%2Flibubox.git;a=blobdiff_plain;f=sh%2Fjshn.sh;h=efac0af01b99e5e6e4d13e08d5311886307b3920;hp=923f2b36318136a51b4f66147ff6f7c4980267be;hb=554ed49c155633adb5782979bb7eb2cae6c64b4e;hpb=fda6079b30a4f47daf95c8b93b9c86afee008f45

diff --git a/sh/jshn.sh b/sh/jshn.sh
index 923f2b3..efac0af 100644
--- a/sh/jshn.sh
+++ b/sh/jshn.sh
@@ -1,72 +1,205 @@
 # functions for parsing and generating json
 
-append() {
+_json_get_var() {
+	local ___dest="$1"
+	local ___var="$2"
+	eval "$___dest=\"\$${JSON_PREFIX}$___var\""
+}
+
+_json_set_var() {
+	local ___var="$1"
+	local ___val="$2"
+	eval "${JSON_PREFIX}$___var=\"\$___val\""
+}
+
+__jshn_raw_append() {
 	local var="$1"
 	local value="$2"
 	local sep="${3:- }"
 
-	eval "export ${NO_EXPORT:+-n} -- \"$var=\${$var:+\${$var}\${value:+\$sep}}\$value\""
+	eval "export -- \"$var=\${$var:+\${$var}\${value:+\$sep}}\$value\""
 }
 
-json_init() {
-	[ -n "$JSON_UNSET" ] && eval "unset $JSON_UNSET"
-	export -- JSON_SEQ=0 JSON_STACK= JSON_CUR="JSON_VAR" JSON_UNSET=
+
+_jshn_append() {
+	local __var="$1"
+	local __value="$2"
+	local __sep="${3:- }"
+	local __old_val
+
+	_json_get_var __old_val "$__var"
+	__value="${__old_val:+$__old_val$__sep}$__value"
+	_json_set_var "$__var" "$__value"
+}
+
+_json_export() {
+	local __var="${JSON_PREFIX}$1"
+	local __val="$2"
+
+	export -- "$__var=$__val"
+}
+
+_json_add_key() {
+	local table="$1"
+	local var="$2"
+	_jshn_append "KEYS_${table}" "$var"
+}
+
+_get_var() {
+	local __dest="$1"
+	local __var="$2"
+	eval "$__dest=\"\$$__var\""
 }
 
-json_add_generic() {
+_set_var() {
+	local __var="$1"
+	local __val="$2"
+	eval "$__var=\"\$__val\""
+}
+
+_json_inc() {
+	local _var="$1"
+	local _dest="$2"
+	local _seq
+
+	_json_get_var _seq "$_var"
+	_seq="$((${_seq:-0} + 1))"
+	_json_set_var "$_var" "$_seq"
+	[ -n "$_dest" ] && _set_var "$_dest" "$_seq"
+}
+
+_json_stack_push() {
+	local new_cur="$1"
+	local cur
+
+	_json_get_var cur JSON_CUR
+	_jshn_append JSON_STACK "$cur"
+	_json_set_var JSON_CUR "$new_cur"
+}
+
+_json_add_generic() {
 	local type="$1"
 	local var="$2"
 	local val="$3"
-	local cur="${4:-$JSON_CUR}"
+	local cur="$4"
+
+	[ -n "$cur" ] || _json_get_var cur JSON_CUR
+
+	if [ "${cur%%[0-9]*}" = "JSON_ARRAY" ]; then
+		_json_inc "SEQ_$cur" var
+	else
+		local name="${var//[^a-zA-Z0-9_]/_}"
+		[[ "$name" == "$var" ]] || _json_export "NAME_${cur}_${name}" "$var"
+		var="$name"
+	fi
+
+	_json_export "${cur}_$var" "$val"
+	_json_export "TYPE_${cur}_$var" "$type"
+	_jshn_append "JSON_UNSET" "${cur}_$var"
+	_json_add_key "$cur" "$var"
+}
+
+_json_add_table() {
+	local name="$1"
+	local type="$2"
+	local itype="$3"
+	local cur new_cur
+	local seq
+
+	_json_get_var cur JSON_CUR
+	_json_inc JSON_SEQ seq
+
+	local table="JSON_$itype$seq"
+	_json_export "UP_$table" "$cur"
+	_json_export "KEYS_$table" ""
+	[ "$itype" = "ARRAY" ] && _json_export "SEQ_$table" ""
+	_json_stack_push "$table"
+	_jshn_append "JSON_UNSET" "$table"
+
+	_json_get_var new_cur JSON_CUR
+	_json_add_generic "$type" "$1" "$new_cur" "$cur"
+}
+
+_json_close_table() {
+	local stack new_stack
+
+	_json_get_var stack JSON_STACK
+	_json_set_var JSON_CUR "${stack##* }"
+	new_stack="${stack% *}"
+	[[ "$stack" == "$new_stack" ]] && new_stack=
+	_json_set_var JSON_STACK "$new_stack"
+}
+
+json_set_namespace() {
+	local _new="$1"
+	local _old="$2"
+
+	[ -n "$_old" ] && _set_var "$_old" "$JSON_PREFIX"
+	JSON_PREFIX="$_new"
+}
+
+json_cleanup() {
+	local unset
 
-	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_get_var unset JSON_UNSET
+	for tmp in $unset JSON_VAR; do
+		unset \
+			${JSON_PREFIX}UP_$tmp \
+			${JSON_PREFIX}KEYS_$tmp \
+			${JSON_PREFIX}SEQ_$tmp \
+			${JSON_PREFIX}TYPE_$tmp \
+			${JSON_PREFIX}NAME_$tmp \
+			${JSON_PREFIX}$tmp
+	done
+
+	unset \
+		${JSON_PREFIX}JSON_SEQ \
+		${JSON_PREFIX}JSON_STACK \
+		${JSON_PREFIX}JSON_CUR \
+		${JSON_PREFIX}JSON_UNSET
 }
 
-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_init() {
+	json_cleanup
+	export -- \
+		${JSON_PREFIX}JSON_SEQ=0 \
+		${JSON_PREFIX}JSON_STACK= \
+		${JSON_PREFIX}JSON_CUR="JSON_VAR" \
+		${JSON_PREFIX}JSON_UNSET="" \
+		${JSON_PREFIX}KEYS_JSON_VAR= \
+		${JSON_PREFIX}TYPE_JSON_VAR=
 }
 
 json_add_object() {
-	local cur="$JSON_CUR"
-	json_add_table
-	json_add_generic object "$1" "$JSON_CUR" "$cur"
+	_json_add_table "$1" object TABLE
 }
 
 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_close_table
 }
 
 json_add_array() {
-	local cur="$JSON_CUR"
-	json_add_table
-	json_add_generic array "$1" "$JSON_CUR" "$cur"
+	_json_add_table "$1" array ARRAY 
 }
 
 json_close_array() {
-	json_close_object
+	_json_close_table
 }
 
 json_add_string() {
-	json_add_generic string "$1" "$2"
+	_json_add_generic string "$1" "$2"
 }
 
 json_add_int() {
-	json_add_generic int "$1" "$2"
+	_json_add_generic int "$1" "$2"
 }
 
 json_add_boolean() {
-	json_add_generic boolean "$1" "$2"
+	_json_add_generic boolean "$1" "$2"
+}
+
+json_add_double() {
+	_json_add_generic double "$1" "$2"
 }
 
 # functions read access to json variables
@@ -76,40 +209,100 @@ json_load() {
 }
 
 json_dump() {
-	jshn -w
+	jshn "$@" ${JSON_PREFIX:+-p "$JSON_PREFIX"} -w 
 }
 
 json_get_type() {
-	local dest="$1"
-	local var="$2"
-	eval "export ${NO_EXPORT:+-n} -- \"$dest=\${TYPE_${JSON_CUR}_$var}\""
+	local __dest="$1"
+	local __cur
+
+	_json_get_var __cur JSON_CUR
+	local __var="${JSON_PREFIX}TYPE_${__cur}_${2//[^a-zA-Z0-9_]/_}"
+	eval "export -- \"$__dest=\${$__var}\"; [ -n \"\${$__var+x}\" ]"
+}
+
+json_get_keys() {
+	local __dest="$1"
+	local _tbl_cur
+
+	if [ -n "$2" ]; then
+		json_get_var _tbl_cur "$2"
+	else
+		_json_get_var _tbl_cur JSON_CUR
+	fi
+	local __var="${JSON_PREFIX}KEYS_${_tbl_cur}"
+	eval "export -- \"$__dest=\${$__var}\"; [ -n \"\${$__var+x}\" ]"
+}
+
+json_get_values() {
+	local _v_dest="$1"
+	local _v_keys _v_val _select=
+
+	unset "$_v_dest"
+	[ -n "$2" ] && {
+		json_select "$2"
+		_select=1
+	}
+
+	json_get_keys _v_keys
+	set -- $_v_keys
+	while [ "$#" -gt 0 ]; do
+		json_get_var _v_val "$1"
+		__jshn_raw_append "$_v_dest" "$_v_val"
+		shift
+	done
+	[ -n "$_select" ] && json_select ..
+
+	return 0
 }
 
 json_get_var() {
-	local dest="$1"
-	local var="$2"
-	eval "export ${NO_EXPORT:+-n} -- \"$dest=\${${JSON_CUR}_$var}\""
+	local __dest="$1"
+	local __cur
+
+	_json_get_var __cur JSON_CUR
+	local __var="${JSON_PREFIX}${__cur}_${2//[^a-zA-Z0-9_]/_}"
+	eval "export -- \"$__dest=\${$__var}\"; [ -n \"\${$__var+x}\" ]"
+}
+
+json_get_vars() {
+	while [ "$#" -gt 0 ]; do
+		local _var="$1"; shift
+		json_get_var "$_var" "$_var"
+	done
 }
 
 json_select() {
 	local target="$1"
 	local type
+	local cur
 
 	[ -z "$1" ] && {
-		JSON_CUR="JSON_VAR"
-		return
+		_json_set_var JSON_CUR "JSON_VAR"
+		return 0
 	}
 	[[ "$1" == ".." ]] && {
-		eval "JSON_CUR=\"\${UP_$JSON_CUR}\""
-		return;
+		_json_get_var cur JSON_CUR
+		_json_get_var cur "UP_$cur"
+		_json_set_var JSON_CUR "$cur"
+		return 0
 	}
 	json_get_type type "$target"
 	case "$type" in
 		object|array)
-			json_get_var JSON_CUR "$target"
+			json_get_var cur "$target"
+			_json_set_var JSON_CUR "$cur"
 		;;
 		*)
 			echo "WARNING: Variable '$target' does not exist or is not an array/object"
+			return 1
 		;;
 	esac
 }
+
+json_is_a() {
+	local type
+
+	json_get_type type "$1"
+	[ "$type" = "$2" ]
+}