Add non-rawhtml center tag

lib/index.umd.js

@@ -147,6 +147,30 @@
 
         return "$[" + token.tag + " " + this.parser.parseInline(token.tokens) + "]";
       }
+    }, {
+      name: 'center',
+      level: 'block',
+      start: function start(src) {
+        return src.match(/<center>/);
+      },
+      tokenizer: function tokenizer(src, tokens) {
+        var rule = /^<center>([\S\s]*)<\/center>/;
+        var match = rule.exec(src);
+
+        if (match) {
+          var token = {
+            type: 'center',
+            raw: match[0],
+            text: match[1],
+            tokens: []
+          };
+          this.lexer.inline(token.text, token.tokens);
+          return token;
+        }
+      },
+      renderer: function renderer(token) {
+        return "<center>" + this.parser.parseInline(token.tokens) + "</center>\n";
+      }
     }]
   };
 

src/index.js

@@ -50,5 +50,27 @@ export default {
         return `$[${token.tag} ${this.parser.parseInline(token.tokens)}]`
       },
     },
+    {
+      name: 'center',
+      level: 'block',
+      start (src) { return src.match(/<center>/) },
+      tokenizer (src, tokens) {
+        const rule = /^<center>([\S\s]*)<\/center>/
+        const match = rule.exec(src)
+        if (match) {
+          const token = {
+            type: 'center',
+            raw: match[0],
+            text: match[1],
+            tokens: [],
+          }
+          this.lexer.inline(token.text, token.tokens)
+          return token
+        }
+      },
+      renderer (token) {
+        return `<center>${this.parser.parseInline(token.tokens)}</center>\n`
+      },
+    },
   ],
 }

test/index.test.js

@@ -41,4 +41,9 @@ describe('marked-mfm', () => {
     marked.use(markedMfm)
     expect(marked('$[spin.alternate,speed=0.5s test]')).toBe('<p><span class="mfm _mfm_spin_" data-alternate data-speed="0.5s">test</span></p>\n')
   })
+
+  test('center', () => {
+    marked.use(markedMfm)
+    expect(marked('<center>test *italic*</center>')).toBe('<center>test <em>italic</em></center>\n')
+  })
 })