Handle Windows (and other) line endings

Author: evilstreak

lib/markdown.js

@@ -160,6 +160,7 @@ function count_lines( str ) {
 
 // Internal - split source into rough blocks
 Markdown.prototype.split_blocks = function splitBlocks( input, startLine ) {
+  input = input.replace(/(\r\n|\n|\r)/g, '\n');
   // [\s\S] matches _anything_ (newline or space)
   var re = /([\s\S]+?)($|\n(?:\s*\n|$)+)/g,
       blocks = [],

test/regressions.t.js

@@ -522,4 +522,14 @@ test( "inline_autolink", function(t, md) {
   t.equivalent( md.processInline( "<foo@bar.com>" ),
                                   [ [ "link", { href: "mailto:foo@bar.com" }, "foo@bar.com" ] ],
                                   "autolink III" );
-});
+});
+
+test( "line_endings", function(t, md) {
+  // try to generate this tree with all types of line ending
+  var tree = [ "markdown", [ "para", "Foo" ], [ "para", "Bar" ] ];
+
+  t.equivalent( md.toTree( "Foo\n\nBar", [ "markdown" ] ), tree, "Unix line endings" );
+  t.equivalent( md.toTree( "Foo\r\n\r\nBar", [ "markdown" ] ), tree, "Windows line endings" );
+  t.equivalent( md.toTree( "Foo\r\rBar", [ "markdown" ] ), tree, "Mac line endings" );
+  t.equivalent( md.toTree( "Foo\r\n\nBar", [ "markdown" ] ), tree, "Mixed line endings" );
+});