Function getRange

mini-code-edit/cm/lib/codemirror.js:813–820

(from, to)

    }

    function getRange(from, to) {
      var l1 = from.line, l2 = to.line;
      if (l1 == l2) return getLine(l1).text.slice(from.ch, to.ch);
      var code = [getLine(l1).text.slice(from.ch)];
      doc.iter(l1 + 1, l2, function(line) { code.push(line.text); });
      code.push(getLine(l2).text.slice(0, to.ch));
      return code.join("\n");
    }
    function getSelection() {
      return getRange(sel.from, sel.to);
    }