Add parser rule for hard linebreaks

core/modules/parsers/wikiparser/rules/hardlinebreaks.js

@@ -0,0 +1,60 @@
+/*\
+title: $:/core/modules/parsers/wikiparser/rules/hardlinebreaks.js
+type: application/javascript
+module-type: wikirule
+
+Wiki text inline rule for marking areas with hard line breaks. For example:
+
+```
+"""
+This is some text
+That is set like
+It is a Poem
+When it is
+Clearly
+Not
+"""
+```
+
+\*/
+(function(){
+
+/*jslint node: true, browser: true */
+/*global $tw: false */
+"use strict";
+
+exports.name = "hardlinebreaks";
+exports.types = {inline: true};
+
+exports.init = function(parser) {
+	this.parser = parser;
+	// Regexp to match
+	this.matchRegExp = /"""(?:\r?\n)+/mg;
+};
+
+exports.parse = function() {
+	var reEnd = /(""")|(\r?\n)/mg,
+		tree = [];
+	// Move past the match
+	this.parser.pos = this.matchRegExp.lastIndex;
+	do {
+		// Parse the run up to the terminator
+		tree.push.apply(tree,this.parser.parseInlineRun(reEnd,{eatTerminator: false}));
+		// Redo the terminator match
+		reEnd.lastIndex = this.parser.pos;
+		var match = reEnd.exec(this.parser.source);
+console.log("Match",match,reEnd.lastIndex)
+		if(match) {
+			this.parser.pos = reEnd.lastIndex;
+			// Add a line break if the terminator was a line break
+			if(match[2]) {
+				tree.push({type: "element", tag: "br"});
+			}
+		}
+	} while(match && !match[1]);
+console.log("Generating",tree)
+	// Return the nodes
+	return tree;
+};
+
+})();

editions/test/tiddlers/tests/test-wikitext-parser.js

@@ -113,6 +113,15 @@ describe("WikiText parser tests", function() {
 
 	});
 
+	it("should parse hard linebreak areas", function() {
+		expect(parse("\"\"\"Something\nin the\nway she moves\n\"\"\"\n\n")).toEqual(
+
+			[ { type : 'element', tag : 'p', children : [ { type : 'text', text : 'Something' }, { type : 'element', tag : 'br' }, { type : 'text', text : 'in the' }, { type : 'element', tag : 'br' }, { type : 'text', text : 'way she moves' }, { type : 'element', tag : 'br' } ] } ]
+
+		);
+
+	});
+
 });
 
 })();

editions/tw5.com/tiddlers/wikitext/Hard Linebreaks in WikiText.tid

@@ -0,0 +1,17 @@
+created: 20131214165710101
+modified: 20131214170106553
+tags: wikitext
+title: Hard Linebreaks in WikiText
+type: text/vnd.tiddlywiki
+
+The usual handling of [[paragraphs in wikitext|Paragraphs in WikiText]] causes single line breaks to be ignored, and double linebreaks to be interpreted as the end of a paragraph.
+
+This behaviour isn't convenient when dealing with material that incorporates hard linebreaks - for instance, poetry. You can mark a block of content as containing hard line breaks like this:
+
+<<wikitext-example src:'"""
+This is a line
+and this is a new line
+while this is yet another line
+and this is the final one
+apart from this one
+"""'>>

editions/tw5.com/tiddlers/wikitext/Paragraphs in WikiText.tid

@@ -1,5 +1,5 @@
 created: 20131205155836435
-modified: 20131205155853526
+modified: 20131214170445345
 tags: wikitext
 title: Paragraphs in WikiText
 type: text/vnd.tiddlywiki
@@ -18,3 +18,5 @@ Single line breaks are ignored within paragraphs. For example:
 paragraph made
 up of
 short lines">>
+
+For situations where this behaviour isn't convenient, you can also use [[Hard Linebreaks in WikiText]].