Add support for line-breaks in mustaches

spec/tokenizer_spec.rb

@@ -77,12 +77,18 @@ describe "Tokenizer" do
     result[3].should be_token("ID", "foo")
   end
 
-  it "tokenizes a simple mustahe with spaces as 'OPEN ID CLOSE'" do
+  it "tokenizes a simple mustache with spaces as 'OPEN ID CLOSE'" do
     result = tokenize("{{  foo  }}")
     result.should match_tokens(%w(OPEN ID CLOSE))
     result[1].should be_token("ID", "foo")
   end
 
+  it "tokenizes a simple mustache with line breaks as 'OPEN ID ID CLOSE'" do
+    result = tokenize("{{  foo  \n   bar }}")
+    result.should match_tokens(%w(OPEN ID ID CLOSE))
+    result[1].should be_token("ID", "foo")
+  end
+
   it "tokenizes raw content as 'CONTENT'" do
     result = tokenize("foo {{ bar }} baz")
     result.should match_tokens(%w(CONTENT OPEN ID CLOSE CONTENT))
@@ -172,6 +178,9 @@ describe "Tokenizer" do
     result = tokenize("{{ foo bar baz=bat }}")
     result.should match_tokens %w(OPEN ID ID ID EQUALS ID CLOSE)
 
+    result = tokenize("{{ foo bar\n  baz=bat }}")
+    result.should match_tokens %w(OPEN ID ID ID EQUALS ID CLOSE)
+
     result = tokenize("{{ foo bar baz=\"bat\" }}")
     result.should match_tokens %w(OPEN ID ID ID EQUALS STRING CLOSE)
 

src/handlebars.l

@@ -24,7 +24,7 @@
 <mu>"}}}"                    { this.begin("INITIAL"); return 'CLOSE'; }
 <mu>"}}"                     { this.begin("INITIAL"); return 'CLOSE'; }
 <mu>'"'("\\"["]|[^"])*'"'    { yytext = yytext.substr(1,yyleng-2).replace(/\\"/g,'"'); return 'STRING'; }
-<mu>[a-zA-Z0-9_-]+/[=} /.]   { return 'ID'; }
+<mu>[a-zA-Z0-9_-]+/[=}\s/.]  { return 'ID'; }
 <mu>.                        { return 'INVALID'; }
 
 <INITIAL,mu><<EOF>>          { return 'EOF'; }