Add escape method

README.md

@@ -4,6 +4,24 @@
 
 Front-matter parser.
 
+## API
+
+### parse(str)
+
+Parses YAML front-matter.
+
+### stringify(obj)
+
+Converts an object to YAML front-matter string.
+
+### split(str)
+
+Splits a YAML front-matter string.
+
+### escape(str)
+
+Converts hard tabs to soft tabs.
+
 ## License
 
 MIT

index.js

@@ -15,6 +15,18 @@ var split = exports.split = function(str){
   return {data: data, content: content};
 };
 
+var escapeYaml = exports.escape = function(str){
+  return str.replace(/\n(\t+)/g, function(match, tabs){
+    var result = '\n';
+
+    for (var i = 0, len = tabs.length; i < len; i++){
+      result += '  ';
+    }
+
+    return result;
+  });
+};
+
 var parse = exports.parse = function(str){
   var splitData = split(str),
     raw = splitData.data,
@@ -23,7 +35,7 @@ var parse = exports.parse = function(str){
   if (!raw) return {_content: str};
 
   try {
-    var data = yaml.parse(raw);
+    var data = yaml.parse(escapeYaml(raw));
 
     if (typeof data === 'object'){
       data._content = content;

package.json

@@ -1,6 +1,6 @@
 {
   "name": "hexo-front-matter",
-  "version": "0.0.1",
+  "version": "0.0.2",
   "description": "Front-matter parser.",
   "main": "index",
   "scripts": {

test/yfm.js

@@ -5,6 +5,37 @@ var yaml = require('yamljs'),
 describe('yfm', function(){
   var yfm = require('../index');
 
+  describe('split', function(){
+    it('with data', function(){
+      yfm.split([
+        'foo',
+        '---',
+        'bar'
+      ].join('\n')).should.eql({data: 'foo', content: 'bar'});
+    });
+
+    it('without data', function(){
+      yfm.split([
+        'foo',
+        'bar'
+      ].join('\n')).should.eql({content: 'foo\nbar'});
+    });
+  });
+
+  describe('escape', function(){
+    it('escape', function(){
+      yfm.escape([
+        'foo',
+        '\tbar',
+        '\t\tbaz'
+      ].join('\n')).should.eql([
+        'foo',
+        '  bar',
+        '    baz'
+      ].join('\n'));
+    });
+  });
+
   describe('parse', function(){
     it('only content', function(){
       var str = [