bug#81530: Problems with both replace-match and substring

Sean MacLennan [01/Aug  1:46am -04] wrote:
> I am having problems with a function to pretty print filenames. It
> basically just removes the current directory, or removes the home
> directory if it can.
>
> It works great in testing, but does not work in place. I have tried
> with a fairly new (updated Thursday) 32.0.50 and the stock 29.3 from
> Ubuntu. And, yes, I tried -Q in both cases.
>
> I have attached a test program and a sample text file in the correct
> format. Put the sample file somewhere in a directory under your home
> directory. The program massages the file to produce something that will
> work for your setup.
>
> If I run it with out-of-place, it works. I have two examples in the
> program. But if I run it as part of the "real" code, it gives me an
> `Args out of range: 0,10`, which is the length of my home directory.
>
> The code shows substring, I also tried replace-match. I have no idea
> what I am doing wrong. I am not doing anything complex. Really just
> converting a coverity output file into something that works with
> `next-error`.
>
> You can set do-pretty to nil if you want to see that it works without
> the pretty-print-fname function.
>
> If you need any more information or want me to try something I can.

What is the claimed bug?

-- 
Sean Whitton