Fix handling \r\n

Close #437

lib/parse.js

@@ -206,7 +206,7 @@ var EX_EOF = {};
 function tokenizer($TEXT, filename, html5_comments) {
 
     var S = {
-        text            : $TEXT.replace(/\r\n?|[\n\u2028\u2029]/g, "\n").replace(/\uFEFF/g, ''),
+        text            : $TEXT.replace(/\uFEFF/g, ''),
         filename        : filename,
         pos             : 0,
         tokpos          : 0,
@@ -225,10 +225,15 @@ function tokenizer($TEXT, filename, html5_comments) {
         var ch = S.text.charAt(S.pos++);
         if (signal_eof && !ch)
             throw EX_EOF;
-        if (ch == "\n") {
+        if ("\r\n\u2028\u2029".indexOf(ch) >= 0) {
             S.newline_before = S.newline_before || !in_string;
             ++S.line;
             S.col = 0;
+            if (!in_string && ch == "\r" && peek() == "\n") {
+                // treat a \r\n sequence as a single \n
+                ++S.pos;
+                ch = "\n";
+            }
         } else {
             ++S.col;
         }