parse ``` and ~~~~ special code marker in markdowns

mklabs · Oct 22, 2011 · 31ee00f · 31ee00f
1 parent 11d5d70
commit 31ee00f
Showing 1 changed file with 40 additions and 3 deletions.
diff --git a/lib/docs.js b/lib/docs.js
@@ -34,20 +34,28 @@ var manfront = [
 // directly.
 //
 
-exports.help = function(file, cb, cmd) {
+exports.help = function(file, cmd, cb) {
   var extname = path.extname(file),
     basename = path.basename(file).replace(extname, ''),
     md = !!~markdowns.indexOf(extname);
 
   if(basename === 'Cakefile') extname = '.coffee';
 
+  if(!cb) {
+    cb = cmd;
+    cmd = 'manman';
+  }
+
+  // noop if no callback supplied
+  cb = cb || function(){};
+
   path.exists(file, function(state) {
     if(!state) return cb(new Error(file + ' does not exist.'));
 
     fs.readFile(file, 'utf8', function(err, content) {
       if(err) return cb(err);
-      var ronn = md ? content : parse(extname, content);
-      man(ronn, { page: basename, cmd: cmd || 'manman' }, cb);
+      var ronn = md ? parseMd(content) : parse(extname, content);
+      man(ronn, { page: basename, cmd: cmd }, cb);
     });
   });
 };
@@ -94,3 +102,32 @@ function parse(ext, code) {
 
   return sections.join('\n');
 }
+
+function parseMd(content) {
+  var delim = '<code>',
+    delimIn = delim + 'in',
+    delimOut = delim + 'out',
+    code;
+
+  content = content
+    .replace(/```.+/gm, delimIn + '\n')
+    .replace(/~~~.+/gm, delimIn + '\n')
+    .replace(/```/gm, '\n' + delimOut)
+    .replace(/~~~/gm, '\n' + delimOut);
+
+  content = content.split('\n')
+    .map(function(line) {
+      if (line.match(delimIn)) {
+        line = line.replace(delimIn, '');
+        code = true;
+      } else if(line.match(delimOut)) {
+        line = line.replace(delimOut, '');
+        code = false;
+      }
+
+      return code ? '    ' + line : line;
+    });
+
+
+  return content.join('\n');
+}