From 2ec58f7fa223f250843eaa5f21d6a938617cc612 Mon Sep 17 00:00:00 2001
From: Stephan Hradek <github.mails.skeeve@xoxy.net>
Date: Sun, 1 Dec 2013 21:21:15 +0100
Subject: [PATCH] added quote rules

---
 .../modules/parsers/wikiparser/rules/quote.js | 98 +++++++++++++++++++
 .../parsers/wikiparser/rules/quoteblock.js    | 96 ++++++++++++++++++
 2 files changed, 194 insertions(+)
 create mode 100644 core/modules/parsers/wikiparser/rules/quote.js
 create mode 100644 core/modules/parsers/wikiparser/rules/quoteblock.js

diff --git a/core/modules/parsers/wikiparser/rules/quote.js b/core/modules/parsers/wikiparser/rules/quote.js
new file mode 100644
index 000000000..393259a78
--- /dev/null
+++ b/core/modules/parsers/wikiparser/rules/quote.js
@@ -0,0 +1,98 @@
+/*\
+title: $:/core/modules/parsers/wikiparser/rules/quote.js
+type: application/javascript
+module-type: wikirule
+
+Wiki text block rule for quotes. For example:
+
+```
+> This is aquote
+> It has two paragraphs
+
+> This is another quite
+>> This is a quoted quote
+> And another paragraph
+```
+
+A CSS class can be applied to a quote item as follows:
+
+```
+> First quoted paragraph
+>.active Second prargraph has the class `active`
+> Third quoted paragraph
+```
+
+\*/
+(function(){
+
+/*jslint node: true, browser: true */
+/*global $tw: false */
+"use strict";
+
+exports.name = "quote";
+exports.types = {block: true};
+
+exports.init = function(parser) {
+	this.parser = parser;
+	// Regexp to match
+	this.matchRegExp = /(>+)/mg;
+};
+
+var quoteInfo = {quoteTag: "blockquote", paraTag: "p", attributes: { class: { type: "string", value:"tw-quote" }}};
+
+/*
+Parse the most recent match
+*/
+exports.parse = function() {
+	// Array of parse tree nodes for the previous row of the quote
+	var quoteStack = [];
+	// Cycle through the items in the quote
+	while(true) {
+		// Match the list marker
+		var reMatch = /(>+)/mg;
+		reMatch.lastIndex = this.parser.pos;
+		var match = reMatch.exec(this.parser.source);
+		if(!match || match.index !== this.parser.pos) {
+			break;
+		}
+		// Move past the quote marker
+		this.parser.pos = match.index + match[0].length;
+		// Walk through the quote markers for the current row
+		for(var t=0; t<match[0].length; t++) {
+			// Construct the quote element or reuse the previous one at this level
+			if(quoteStack.length <= t) {
+				var quoteElement = {type: "element", tag: quoteInfo.quoteTag, attributes: quoteInfo.attributes, children: [
+					{type: "element", tag: quoteInfo.paraTag, children: []}
+				]};
+				// Link this list element into the last child item of the parent list item
+				if(t) {
+					var prevQuoteItem = quoteStack[t-1].children[quoteStack[t-1].children.length-1];
+					prevQuoteItem.children.push(quoteElement);
+				}
+				// Save this element in the stack
+				quoteStack[t] = quoteElement;
+			} else if(t === (match[0].length - 1)) {
+				quoteStack[t].children.push({type: "element", tag: quoteInfo.paraTag, children: []});
+			}
+		}
+		if(quoteStack.length > match[0].length) {
+			quoteStack.splice(match[0].length,quoteStack.length - match[0].length);
+		}
+		// Process the body of the list item into the last list item
+		var lastQuoteChildren = quoteStack[quoteStack.length-1].children,
+			lastQuoteItem = lastQuoteChildren[lastQuoteChildren.length-1],
+			classes = this.parser.parseClasses();
+		this.parser.skipWhitespace({treatNewlinesAsNonWhitespace: true});
+		var tree = this.parser.parseInlineRun(/(\r?\n)/mg);
+		lastQuoteItem.children.push.apply(lastQuoteItem.children,tree);
+		if(classes.length > 0) {
+			$tw.utils.addClassToParseTreeNode(lastQuoteItem,classes.join(" "));
+		}
+		// Consume any whitespace following the list item
+		this.parser.skipWhitespace();
+	}
+	// Return the root element of the list
+	return [quoteStack[0]];
+};
+
+})();
diff --git a/core/modules/parsers/wikiparser/rules/quoteblock.js b/core/modules/parsers/wikiparser/rules/quoteblock.js
new file mode 100644
index 000000000..b3a0c8ae6
--- /dev/null
+++ b/core/modules/parsers/wikiparser/rules/quoteblock.js
@@ -0,0 +1,96 @@
+/*\
+title: $:/core/modules/parsers/wikiparser/rules/quoteblock.js
+type: application/javascript
+module-type: wikirule
+
+Wiki text rule for quote blocks. For example:
+
+```
+	<<<.optionalClass(es) optional cited from
+	a quote
+	<<<
+	
+	<<<.optionalClass(es)
+	a quote
+	<<< optional cited from
+```
+
+Quotes can be quoted by putting more <s
+
+```
+	<<<
+	Quote Level 1
+	
+	<<<<
+	QuoteLevel 2
+	<<<<
+	
+	<<<
+```
+
+\*/
+(function(){
+
+/*jslint node: true, browser: true */
+/*global $tw: false */
+"use strict";
+
+exports.name = "quoteblock";
+exports.types = {block: true};
+
+exports.init = function(parser) {
+	this.parser = parser;
+	// Regexp to match
+	this.matchRegExp = /(<<<+)/mg;
+};
+
+exports.parse = function() {
+	var classes = ["tw-quote"];
+	// Get all the details of the match
+	var reEndString = "^" + this.match[1] + "(?!<)";
+	// Move past the <s
+	this.parser.pos = this.matchRegExp.lastIndex;
+	
+	// Parse any classes, whitespace and then the optional cite itself
+	classes.push.apply(classes, this.parser.parseClasses());
+	this.parser.skipWhitespace({treatNewlinesAsNonWhitespace: true});
+	var cite = this.parser.parseInlineRun(/(\r?\n)/mg);
+
+	// before handling the cite, parse the body of the quote
+	var tree= this.parser.parseBlocks(reEndString);
+	// If we got a cite, put it before the text
+	if ( cite.length > 0 ) {
+		tree.unshift({
+			type: "element",
+			tag: "cite",
+			children: cite
+		});
+	}
+
+	// Move past the <s
+	this.parser.pos = this.matchRegExp.lastIndex;
+	
+	// Parse any optional cite
+	this.parser.skipWhitespace({treatNewlinesAsNonWhitespace: true});
+	cite = this.parser.parseInlineRun(/(\r?\n)/mg);
+	// If we got a cite, push it
+	if ( cite.length > 0 ) {
+		tree.push({
+			type: "element",
+			tag: "cite",
+			children: cite
+		});
+	}
+
+	// Return the blockquote element
+	return [{
+		type: "element",
+		tag: "blockquote",
+		attributes: {
+			class: { type: "string", value: classes.join(" ") },
+		},
+		children: tree
+	}];
+};
+
+})();