Hi, had no problems with syntax highlighting on my site appart in that particular post , for an unknown reason, any idea? (I forced lisp syntax)

I think it may be the size of the snippet. When I (very roughly :slight_smile:) chop out a chunk of the first one to make it smaller it then highlights as expected. (In combination with the codeblock line numbering theme component)

Yes it does. Didn’t think about trying because all the other posts work.

@patrickemin what do you want to do with this topic? Should we delete it or is there an actual problem here you need help with? If so can you provide enough detail so we can help you and maybe a screnshot?

Actually, I still have this problem: syntax highlighting doesn’t work for this particular post, but it works for all the others. And so, after testing in safe mode , syntax highlighting works for all posts. This does not explain why, for this particular post, which is nothing out of the ordinary, syn…

If you were to copy/paste that post into a PM here, would it work?

From what I can tell, I think it’s the Code-block line numbers theme component. Specifically with the lisp language. Are there other snippets in lisp that work in other posts? (Just to help narrow down if it’s something specific to that codeblock or if it’s the lisp syntax itself)

[immagine] JammyDodger: Are there other snippets in lisp that work in other posts? (Just to help narrow down if it’s something specific to that codeblock or if it’s the lisp syntax itself) Yes it’s working everywhere else, for example here .

[immagine] JammyDodger: From what I can tell, I think it’s the Code-block line numbers theme component. Specifically with the lisp language. Well actually there are two TCs, syntax highlighting and line numbering that should act when I post code on my site, line numbering works but syntax hig…

Ah ok that could be a hint. In fact, I quickly checked and I probably never had a code of that length on my site (I do not know what the maximum length is)

If you disable the line numbering component you should be able to see that the highlighting works as expected (like in safe mode , but more specific). So it appears to be a limitation in the theme component. I’m not sure on the specifics though.

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Supporto

tobiaseigen (Tobias Eigen) 3 Dicembre 2025, 2:38am 13

@patrickemin hai capito come risolvere? Dalla valutazione di JammyDodger, sembra essere correlato al componente di numerazione delle righe, che sembra non funzionare per blocchi di codice più grandi.

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Syntax highlighting not working? Bug	5	1247	Novembre 17, 2016
Minor bug: syntax highlighting is not reapplied after editing a post Bug	2	1192	Febbraio 4, 2015
Text Editor Blues - color syntax highlighting and single small column Support	3	568	Giugno 25, 2020
Code-block line numbers Theme component code	18	738	Marzo 3, 2025
:cn: Code syntax highlighting 代码的语法高亮 Administrators chinese-translation , content	0	890	Novembre 13, 2022

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