update literal syntax to use modifier

Author: yyx990803

src/compiler/compile.js

@@ -12,6 +12,7 @@ var componentDef = require('../directives/component')
 var bindRE = /^:|^v-bind:/
 var onRE = /^@/
 var argRE = /:(.*)$/
+var literalRE = /\.literal$/
 
 // terminal directives
 var terminalDirectives = [
@@ -563,9 +564,9 @@ function compileDirectives (attrs, options) {
     // Core directive
     if (name.indexOf(config.prefix) === 0) {
       // check literal
-      if (name.charAt(name.length - 1) === '#') {
+      if (literalRE.test(name)) {
         isLiteral = true
-        name = name.slice(0, -1)
+        name = name.replace(literalRE, '')
       } else {
         isLiteral = false
       }

test/unit/specs/compiler/compile_spec.js

@@ -50,7 +50,7 @@ if (_.inBrowser) {
 
     it('normal directives', function () {
       el.setAttribute('v-a', 'b')
-      el.innerHTML = '<p v-a="a" v-b="b">hello</p><div v-b#="b"></div>'
+      el.innerHTML = '<p v-a="a" v-b="b">hello</p><div v-b.literal="b"></div>'
       var defA = { priority: 1 }
       var defB = { priority: 2 }
       var descriptorA = dirParser.parse('a')[0]