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https://github.com/Jermolene/TiddlyWiki5
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Add support for macro definitions
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core/modules/new_widgets/macrodef.js
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55
core/modules/new_widgets/macrodef.js
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/*\
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title: $:/core/modules/new_widgets/macrodef.js
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type: application/javascript
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module-type: new_widget
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Macro definition widget
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\*/
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(function(){
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/*jslint node: true, browser: true */
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/*global $tw: false */
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"use strict";
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var Widget = require("$:/core/modules/new_widgets/widget.js").widget;
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var MacroDefWidget = function(parseTreeNode,options) {
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this.initialise(parseTreeNode,options);
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};
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/*
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Inherit from the base widget class
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*/
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MacroDefWidget.prototype = new Widget();
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/*
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Render this widget into the DOM
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*/
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MacroDefWidget.prototype.render = function(parent,nextSibling) {
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this.parentDomNode = parent;
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this.computeAttributes();
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this.execute();
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this.renderChildren(parent,nextSibling);
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};
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/*
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Compute the internal state of the widget
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*/
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MacroDefWidget.prototype.execute = function() {
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// Set macro definition
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this.setVariable(this.parseTreeNode.name,this.parseTreeNode.text,this.parseTreeNode.params);
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// Construct the child widgets
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this.makeChildWidgets();
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};
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/*
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Selectively refreshes the widget if needed. Returns true if the widget or any of its children needed re-rendering
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*/
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MacroDefWidget.prototype.refresh = function(changedTiddlers) {
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return this.refreshChildren(changedTiddlers);
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};
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exports.macrodef = MacroDefWidget;
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})();
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@ -629,19 +629,35 @@ exports.parseTiddler = function(title,options) {
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// We need to tweak parse trees generated by the existing parser because of the change from {type:"element",tag:"$tiddler",...} to {type:"tiddler",...}
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// We need to tweak parse trees generated by the existing parser because of the change from {type:"element",tag:"$tiddler",...} to {type:"tiddler",...}
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var tweakParseTreeNode = function(node) {
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var tweakParseTreeNode = function(node) {
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if(node.type === "element" && node.tag.charAt(0) === "$") {
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if(node.type === "element" && node.tag.charAt(0) === "$") {
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node.type = node.tag.substr(1);
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node.type = node.tag.substr(1);
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}
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}
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tweakParseTreeNodes(node.children);
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tweakParseTreeNodes(node.children);
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},
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};
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tweakParseTreeNodes = function(nodeList) {
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$tw.utils.each(nodeList,tweakParseTreeNode);
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var tweakParseTreeNodes = function(nodeList) {
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};
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$tw.utils.each(nodeList,tweakParseTreeNode);
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};
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var tweakMacroDefinition = function(nodeList) {
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if(nodeList && nodeList[0] && nodeList[0].type === "macrodef") {
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nodeList[0].children = nodeList.slice(1);
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nodeList.splice(1,nodeList.length-1);
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tweakMacroDefinition(nodeList.children);
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}
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};
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var tweakParser = function(parser) {
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// Move any macro definitions to contain the body tree
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tweakMacroDefinition(parser.tree);
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// Tweak widgets
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tweakParseTreeNodes(parser.tree);
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};
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exports.new_parseText = function(type,text,options) {
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exports.new_parseText = function(type,text,options) {
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var parser = this.parseText(type,text,options);
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var parser = this.parseText(type,text,options);
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if(parser) {
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if(parser) {
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tweakParseTreeNodes(parser.tree)
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tweakParser(parser)
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};
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};
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return parser;
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return parser;
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};
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};
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@ -649,7 +665,7 @@ exports.new_parseText = function(type,text,options) {
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exports.new_parseTiddler = function(title,options) {
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exports.new_parseTiddler = function(title,options) {
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var parser = this.parseTiddler(title,options);
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var parser = this.parseTiddler(title,options);
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if(parser) {
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if(parser) {
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tweakParseTreeNodes(parser.tree)
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tweakParser(parser)
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};
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};
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return parser;
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return parser;
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};
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};
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