kopia lustrzana https://github.com/miklobit/TiddlyWiki5
80 wiersze
2.1 KiB
JavaScript
80 wiersze
2.1 KiB
JavaScript
/*\
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title: $:/core/modules/utils/parsetree.js
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type: application/javascript
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module-type: utils
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Parse tree utility functions.
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\*/
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(function(){
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/*jslint node: true, browser: true */
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/*global $tw: false */
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"use strict";
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exports.addAttributeToParseTreeNode = function(node,name,value) {
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node.attributes = node.attributes || {};
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node.attributes[name] = {type: "string", value: value};
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};
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exports.getAttributeValueFromParseTreeNode = function(node,name,defaultValue) {
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if(node.attributes && node.attributes[name] && node.attributes[name].value !== undefined) {
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return node.attributes[name].value;
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}
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return defaultValue;
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};
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exports.addClassToParseTreeNode = function(node,classString) {
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var classes = [];
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node.attributes = node.attributes || {};
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node.attributes["class"] = node.attributes["class"] || {type: "string", value: ""};
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if(node.attributes["class"].type === "string") {
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if(node.attributes["class"].value !== "") {
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classes = node.attributes["class"].value.split(" ");
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}
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if(classString !== "") {
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$tw.utils.pushTop(classes,classString.split(" "));
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}
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node.attributes["class"].value = classes.join(" ");
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}
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};
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exports.addStyleToParseTreeNode = function(node,name,value) {
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node.attributes = node.attributes || {};
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node.attributes.style = node.attributes.style || {type: "string", value: ""};
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if(node.attributes.style.type === "string") {
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node.attributes.style.value += name + ":" + value + ";";
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}
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};
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exports.findParseTreeNode = function(nodeArray,search) {
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for(var t=0; t<nodeArray.length; t++) {
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if(nodeArray[t].type === search.type && nodeArray[t].tag === search.tag) {
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return nodeArray[t];
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}
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}
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return undefined;
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};
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/*
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Helper to get the text of a parse tree node or array of nodes
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*/
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exports.getParseTreeText = function getParseTreeText(tree) {
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var output = [];
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if($tw.utils.isArray(tree)) {
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$tw.utils.each(tree,function(node) {
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output.push(getParseTreeText(node));
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});
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} else {
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if(tree.type === "text") {
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output.push(tree.text);
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}
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if(tree.children) {
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return getParseTreeText(tree.children);
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}
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}
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return output.join("");
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};
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})();
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