Thanks. But I still don't know how to do it. Obviously, I wouldn't like to
browse C source files. In fact it was about 5 years ago when I last wrote a
program in C, so even if I downloaded the sources, it wouldn't help.

A quick search of the manual for regex finds
http://www.geany.org/manual/current/#build-settings-section for how
the regex is used

I could setup Geany so that it automatically opens files referenced from error messages (if they are not opened yet). It can also navigate to the good line number. How can I use non-capturing groups in the error parsing regex?

Here is an example. There are two kinds of error messages that I can get - because there can be an error in the compiler that I'm working on, and also there can be an error in the file that is being compiled:

Error message (type one): File "/home/gandalf/Python/Lib/shopzeus/scripts/ssdlc.py", line 23, in <module> Regexp (type one): \s*File\s\"([^\"]+)\", line (\d+), in\s*(.*) Error message (type two): /home/gandalf/Python/Lib/shopzeus/demos/ssdl/test/test.ssdl:53:9:Syntax error Regexp (type two): ([^:]+):([^:]+):[^:]+:([^:]+)

Both of these errors can happen then I press F8, so I would like to capture both messages if possible. This is what I have tried:

(?:\s*File\s\"([^\"]+)\", line (\d+), in\s*(.*))|(?:([^:]+):([^:]+):[^:]+:([^:]+))

But it does not capture errors in the compiler. Maybe my regular expression is wrong. Or maybe the non-capturing group "?:" does not work.

Here are some things that don't work:

Cannot make a difference between warnings and errors. Now I know that this is a limitation of Geany and I can live with it. It would be a good improvement though.
My compiler actually can tell the column number of the error too. Geany cannot interpret column numbers in error messages, right? This could be a good improvement too. ( Should I post this as a request on the dev list? )
It is a bit off topic. When using GNU style error messages under Windows, parts of the error messages are ambiguous. Because the parts should be separated with colons, but under Windows the file names can contain colons too. I understand that this is a limitation of the GNU standard, not Geany. And I know that I could use a different error message format. But I'm hesitant to do it. What is better: follow the standard, or make it working? Is there a way to have both?

Otherwise, I'm quite satisfied now. :-) Thank you for your help!

Best,

Laszlo