#1690 LaTeX markup error after \left[ and \right[

[ch-hamburger]

The LaTeX markup function of the editor Geany v1.24.1, which relies on the Scintilla lexer, has the following bug:

After the LaTeX commands \left[ and \right[ all text is marked up in dark blue until the next ].

[Neil Hodgson]

This is with the "latex" lexer, not the "tex" lexer.

I won't be working on this myself.

[pointless]

This is more serious than just the left command. Something like $f:[0,1]\to [0,\infty)$ is used relatively frequently and also ruins the rest of the document.

This problem occurs with any command which doesn't take an optional parameter. I suggest making a list of such commands and disabling optional parameter parsing on them.
A quick and dirty fix would be disallowing optional parameters to take multiple lines, so it wouldn't ruin the rest of the document.

Workaround for people annoyed by this: add %]$ at the end of the line.