TiddlyWiki5/core/modules/utils/parsetree.js

60 wiersze
1.6 KiB
JavaScript
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/*\
title: $:/core/modules/utils/parsetree.js
type: application/javascript
module-type: utils
Parse tree utility functions.
\*/
(function(){
/*jslint node: true, browser: true */
/*global $tw: false */
"use strict";
exports.addAttributeToParseTreeNode = function(node,name,value) {
node.attributes = node.attributes || {};
node.attributes[name] = {type: "string", value: value};
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};
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exports.getAttributeValueFromParseTreeNode = function(node,name,defaultValue) {
if(node.attributes && node.attributes[name] && node.attributes[name].value !== undefined) {
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return node.attributes[name].value;
}
return defaultValue;
};
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exports.addClassToParseTreeNode = function(node,classString) {
var classes = [];
node.attributes = node.attributes || {};
node.attributes["class"] = node.attributes["class"] || {type: "string", value: ""};
if(node.attributes["class"].type === "string") {
if(node.attributes["class"].value !== "") {
classes = node.attributes["class"].value.split(" ");
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}
if(classString !== "") {
$tw.utils.pushTop(classes,classString.split(" "));
}
node.attributes["class"].value = classes.join(" ");
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}
};
exports.addStyleToParseTreeNode = function(node,name,value) {
node.attributes = node.attributes || {};
node.attributes["style"] = node.attributes["style"] || {type: "string", value: ""};
if(node.attributes["style"].type === "string") {
node.attributes["style"].value += name + ":" + value + ";";
}
};
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exports.findParseTreeNode = function(nodeArray,search) {
for(var t=0; t<nodeArray.length; t++) {
if(nodeArray[t].type === search.type && nodeArray[t].tag === search.tag) {
return nodeArray[t];
}
}
return undefined;
};
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})();