Added `zero` preset. Related to #12

README.md

@@ -62,6 +62,12 @@ var md = window.markdownit();
 console.log(md.render('# markdown-it rulezz!'));
 ```
 
+Single lines rendering, without paragraph wrap:
+
+```js
+var md = require('markdown-it')();
+console.log(md.renderInline('__markdown-it__ rulezz!'));
+```
 
 ### Configuring
 
@@ -82,6 +88,9 @@ active syntax rules and options for common use cases.
   all rules enabled, but still without html, typographer & autolinker.
 - [default](https://github.com/markdown-it/markdown-it/blob/master/lib/presets/default.js) -
   when no preset name given.
+- [zero](https://github.com/markdown-it/markdown-it/blob/master/lib/presets/zero.js) -
+  all rules disabled (useful to quickly setup your config via `.enable()`).
+
 
 
 ```js

lib/index.js

@@ -15,6 +15,7 @@ var Ruler        = require('./ruler');
 
 var config = {
   'default': require('./presets/default'),
+  zero: require('./presets/zero'),
   full: require('./presets/full'),
   commonmark: require('./presets/commonmark')
 };

lib/presets/zero.js

@@ -0,0 +1,53 @@
+// "Zero" preset, with nothing enabled. Useful for manual configuring of simple
+// modes. For example, to parse bold/italic only.
+
+'use strict';
+
+
+module.exports = {
+  options: {
+    html:         false,        // Enable HTML tags in source
+    xhtmlOut:     false,        // Use '/' to close single tags (<br />)
+    breaks:       false,        // Convert '\n' in paragraphs into <br>
+    langPrefix:   'language-',  // CSS language prefix for fenced blocks
+    linkify:      false,        // autoconvert URL-like texts to links
+
+    // Enable some language-neutral replacements + quotes beautification
+    typographer:  false,
+
+    // Double + single quotes replacement pairs, when typographer enabled,
+    // and smartquotes on. Set doubles to '«»' for Russian, '„“' for German.
+    quotes: '\u201c\u201d\u2018\u2019' /* “”‘’ */,
+
+    // Highlighter function. Should return escaped HTML,
+    // or '' if input not changed
+    //
+    // function (/*str, lang*/) { return ''; }
+    //
+    highlight: null,
+
+    maxNesting:   20            // Internal protection, recursion limit
+  },
+
+  components: {
+
+    core: {
+      rules: [
+        'block',
+        'inline'
+      ]
+    },
+
+    block: {
+      rules: [
+        'paragraph'
+      ]
+    },
+
+    inline: {
+      rules: [
+        'text'
+      ]
+    }
+  }
+};

test/misc.js

@@ -200,6 +200,18 @@ describe('Misc', function () {
     assert.strictEqual(md.render('*b*'), '<par><it>b</it></par>');
   });
 
+  it('zero preset should disable everything', function () {
+    var md = markdownit('zero');
+
+    assert.strictEqual(md.render('___foo___'), '<p>___foo___</p>\n');
+    assert.strictEqual(md.renderInline('___foo___'), '___foo___');
+
+    md.enable('emphasis');
+
+    assert.strictEqual(md.render('___foo___'), '<p><strong><em>foo</em></strong></p>\n');
+    assert.strictEqual(md.renderInline('___foo___'), '<strong><em>foo</em></strong>');
+  });
+
 });