ansi-html

index.js

@@ -0,0 +1,90 @@
+module.exports = ansiHTML;
+
+// Reference to https://github.com/sindresorhus/ansi-regex
+var re_ansi = /(?:(?:\u001b\[)|\u009b)(?:(?:[0-9]{1,3})?(?:(?:;[0-9]{0,3})*)?[A-M|f-m])|\u001b[A-M]/;
+
+// Specific open tags.
+var openTags = {
+  '0' : 'font-weight:normal;opacity:1;color:#000;background:transparent',
+  '1' : 'font-weight:bold',
+  '2' : 'opacity:0.8',
+  '3' : '<i>',
+  '4' : '<u>',
+  '7' : 'background:#000;color:#fff',
+  '8' : 'display:none',
+  '9' : '<del>',
+  '90': 'color: #888'
+};
+// Diff colors and background-colors.
+var styles = {
+  '000'   : 30,
+  'ff0000': 31,
+  '00ff00': 32,
+  'ffff00': 33,
+  '0000ff': 34,
+  'ff00ff': 35,
+  '00ffee': 36,
+  'fff'   : 37
+};
+for (var key in styles) {
+  var code = styles[key];
+  openTags[code.toString()] = 'color:#' + key;
+  openTags[(code + 10).toString()] = 'background:#' + key;
+}
+
+// Close tags.
+var closeTags = {
+  '23': '</i>',
+  '24': '</u>',
+  '29': '</del>'
+};
+
+// Just span.
+[0, 21, 22, 27, 28, 39, 49].forEach(function(n){
+  closeTags[n] = '</span>';
+});
+
+/**
+ * Converts text with ANSI color codes to HTML markup.
+ * @param {String} text
+ * @returns {*}
+ */
+function ansiHTML(text){
+  // Returns the text if the string has no ANSI escape code.
+  if (!re_ansi.test(text)) {
+    return text;
+  }
+
+  // Cache opened sequence.
+  var ansiCodes = [];
+  // Replace with markup.
+  return text.replace(/\033\[(\d+)*m/g, function(match, seq){
+    var ot = openTags[seq];
+    if (ot) {
+      // If current sequence has been opened, close it.
+      if(!!~ansiCodes.indexOf(seq)){
+        ansiCodes.pop();
+        return '</span>';
+      }
+      // Open tag.
+      ansiCodes.push(seq);
+      return ot[0] == '<' ? ot : '<span style="' + ot + ';">';
+    }
+
+    var ct = closeTags[seq];
+    if(ct){
+      // Pop sequence
+      ansiCodes.pop();
+      return ct;
+    }
+    return '';
+  });
+}
+
+/**
+ * Expose tags, could be customized.
+ */
+ansiHTML.tags = {
+  open : openTags,
+  close: closeTags
+};