Thank you Nick,

In fact what I was looking for was not the Scintilla lexer (not at this point though), but the TagManager parser which definitions are stored into tagmanager. I modified the markdown.c according to this, and it's working fine, so I can try to adapt it in a real definition for txt2tags now, according to the HACKING file.

I'll tell you later when I get something usable for Geany.

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for example in markdown for a header you can surround

it by # like this : ## header 2 ##

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On txt2tags it's == header 2 ==. So I replaced this in

the source code of LexMarkdown.cxx and recompiled geany, but it's not working when I change the source to markdown (I just made this quick test by keeping the markdown name):

I don't know much about Scintilla lexers myself, but the MarkDown one seems to have other handling for the '=' and '#' chars which may need changing. I would cut out all the code you don't need for your lexer.

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Where could I start for getting txt2tags working with

Geany?

Try the HACKING file for how to add a filetype.

Regards, Nick