qgis/QGIS — pull request #1703 by m-kuhn (2014-11-27 09:59:57+00:00)
Title: Comments for expressions

Adds support for comments in QgsExpressions. The syntax is based on the SQL standard

Block comments
----------------------

```sql
/*
* This is
* a multi-line block comment
*/

```

Line comments
-------------------

```sql
CASE
WHEN name = 'QGIS' THEN 'Yay' -- Using the good stuff
ELSE 'Nay' -- You can get it on http://qgis.org
END
```