Bash lexer issue with escaping # ( \# )

[oOosys]

Note: SciTE does it the right way ...

[orbitalquark]

Thanks for the report. I'll fix this when I get the chance.

[oOosys]

... Thanks for the reply. No urge in fixing ... if it were very important to me I would have sure already provided a fix myself. Just wanted to mention this issue for the sake of it.

[orbitalquark]

Fixed in orbitalquark/scintillua@f971ac5

[oOosys]

OK ... it works like a charm :) and it was so easy to fix, that it can't be called a bug or issue but a simple oversight in first place, so it appears a bit strange that it wasn't over the years yet reported.

May you please explain a bit the mechanism used in this fix? It appears to demonstrate how to include exceptions from a rule triggered by a pattern by specifying a prefix one with -B('CharacterOrStringOrAnyRegex?') to the pattern to_eol('CharacterOrStringOrAnyRegex?'):

lex:add_rule('comment', lex:tag(lexer.COMMENT, -B('\\') * lexer.to_eol('#')))

I mean learning how things work by fixing issues is a much better way to make progress in understanding the underlying mechanisms than reading the manuals ...

[orbitalquark]

It's kind of like regex look-behind. LPeg matches '#' (in lexer.to_eol('#')), but only if it's not preceded by a '\' character.