Viewer doesn't work for files called *.foo.html

[drolevar]

In a version compiled with GLib search viewer doesn't show the files named like
somefile.foo.htm or
somefile.foo.html
If the regex is changed from \.html?$ to \.html{0,1}$ everything starts working again.

[zaytsev]

This doesn't seem to make any sense to me, the two regexps should be completely equivalent. Moreover, test.foo.html containing <h1>123</h1> is shown as html just fine for me, as well as test.foo.htm, test.html and test.htm. I can't reproduce the problem for which this is supposed to be a fix...

[drolevar]

Could you please check whether your MC is built with libpcre or is using regex from GLib?
I use a build shipped with Ubuntu 16.04. I guess it's built without libpcre.
For me it's clear: without the change, as shipped, it doesn't work, with the change it does work.
Might be strange handling of the ? symbol on the GLib regex library.

[zaytsev]

My ./configure says:

Search type:                glib-regexp

What does "it doesn't work" mean more exactly? Does the same hold for other sections, like djvu?

[and]

Can't confirm.

1) Compiled mc with pcre (8.38) support

  Search type:                pcre

2) patched ext.d/web.sh for debugging

3) open file by hit ENTER
web.sh reports:
open html /tmp/somefile.foo.htm
open html /tmp/somefile.foo.html
open html /tmp/test.htm
open html /tmp/test.html

4) view file by hit F3
web.sh reports:
view html /tmp/somefile.foo.htm
view html /tmp/somefile.foo.html
view html /tmp/test.htm
view html /tmp/test.html

Same with glib-regexp (glib 2.48.2 compiled with --with-pcre=system)

  Search type:                glib-regexp
# ldd /usr/lib64/libglib-2.0.so | grep pcre
        libpcre.so.1 => /lib64/libpcre.so.1

[zaytsev]

Thank you @and! Until we are able to reproduce, let's assume that it was a user configuration error, maybe broken custom mc.ext, or something like that.