Added proper formatting when several lines are selected

boards/mdx_neboard.py

@@ -143,6 +143,14 b' class BoldPattern(TextFormatter):'
     format_right = '__'
 
 
+class CodePattern(TextFormatter):
+    name = 'code'
+    preview_left = '<code>'
+    preview_right = '</code>'
+
+    format_left = '    '
+
+
 class NeboardMarkdown(markdown.Extension):
     def extendMarkdown(self, md, md_globals):
         self._add_neboard_patterns(md)
@@ -186,4 +194,5 b' formatters = ['
     BoldPattern,
     CommentPattern,
     StrikeThroughPattern,
+    CodePattern,
 ]

boards/static/js/panel.js

@@ -23,7 +23,17 b''
  for the JavaScript code in this page.
  */
 
+/**
+ * Add the desired characters to the start and end of selection.
+ * @param start Start (left) text
+ * @param end End (right) text
+ * @returns {boolean}
+ */
 function addMarkToMsg(start, end) {
+    if (end.length == 0) {
+        return addTextToEachLineOfSelection(start);
+    }
+
     var textarea = document.getElementsByTagName('textarea')[0];
     if(!textarea) return;
     if( document.selection ) {
@@ -39,4 +49,68 b' function addMarkToMsg(start, end) {'
         textarea.value += start + end;
     }
     return false;
+}
+
+/**
+ * Add text to the beginning of each selected line. Partially selected lines
+ * are included
+ * @param textToAdd
+ * @returns {*}
+ */
+function addTextToEachLineOfSelection(textToAdd) {
+    var editor, end, newValue, start, value, _ref, _ref1;
+    editor = document.getElementsByTagName('textarea')[0];
+    _ref = [editor.selectionStart, editor.selectionEnd], start = _ref[0], end = _ref[1];
+    if (start == null) {
+        return;
+    }
+    if (start === end) {
+        return;
+    }
+    console.log("Selection range: start=" + start + " end=" + end);
+    value = editor.value;
+    _ref1 = getLinesRange(start, end, value), start = _ref1[0], end = _ref1[1];
+    newValue = replaceLines(start, end, value, textToAdd);
+    return editor.value = newValue;
+}
+
+function replaceLines(start, end, value, textToAdd) {
+    var line, replacedText, text;
+    text = value.slice(start, end);
+    replacedText = ((function() {
+        var _i, _len, _ref, _results;
+        _ref = text.split("\n");
+        _results = [];
+        for (_i = 0, _len = _ref.length; _i < _len; _i++) {
+            line = _ref[_i];
+            _results.push(textToAdd + line);
+        }
+        return _results;
+    })()).join("\n");
+    return replaceSubstring(start, end, value, replacedText);
+}
+
+function replaceSubstring(start, end, string, replacingString) {
+    return string.slice(0, start) + replacingString + string.slice(end);
+}
+
+function getLinesRange(start, end, value) {
+    var i, rangeEnd, rangeStart, _i, _j, _ref, _ref1;
+    if (value[start] === "\n") {
+        start = start - 1;
+    }
+    _ref = [start, end], rangeStart = _ref[0], rangeEnd = _ref[1];
+    for (i = _i = start; start <= 0 ? _i <= 0 : _i >= 0; i = start <= 0 ? ++_i : --_i) {
+        if (value[i] === "\n") {
+            break;
+        }
+        rangeStart = i;
+    }
+    for (i = _j = end, _ref1 = value.length; end <= _ref1 ? _j < _ref1 : _j > _ref1; i = end <= _ref1 ? ++_j : --_j) {
+        if (value[i] === "\n") {
+            break;
+        }
+        rangeEnd = i;
+    }
+    return [rangeStart, rangeEnd];
 }
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