bug#63272: 29.0.90; xref fails on long lines

[Dmitry Gutov]

On 04/05/2023 18:07, Juri Linkov wrote:
> 1. Create a file with a long line, e.g. type
>
>     a C-u 500000 b c
>
> Save the file and commit to git.
> (long-line-optimizations-p returns t)
>
> 2. Try to search a regexp that matches the whole long line, e.g.
>
>     C-x p g a.*c RET
>
> Debugger entered--Lisp error: (error "Stack overflow in regexp matcher")

Isn't that more like a problem with the regexp you entered, or with our 
regexp engine?

E.g. try this:

  C-x p g a[^c]*c RET