Option Title: with title containing tex

[couet]

With pdf output it is possible to define a table of content of a multi-pages file. Each page has its name specified using the option "Title:" followed by the title of the page. If the title contains a string matching a possible file extension like, for instance, "tex" or "png", then the pdf generation went wrong and might crash. This PR fixes the problem.

Fixes #19390

[github-actions]

Test Results

    21 files      21 suites   3d 7h 29m 8s ⏱️
 3 224 tests  3 224 ✅ 0 💤 0 ❌
65 981 runs  65 981 ✅ 0 💤 0 ❌

Results for commit 560c046.

♻️ This comment has been updated with latest results.

[dpiparo]

could this be backported and merged to 6.36 when merged?

[ferdymercury]

Thanks for this nice fix Olivier!
I would suggest adding the following Unit Test:

   TCanvas c;
   c.Print("outputJIRA7087.pdf[");
   c.Print("outputJIRA7087.pdf", "Title:Vertex");
   c.Print("outputJIRA7087.pdf]");
   gSystem->Unlink("outputJIRA7087.pdf");

[bellenot]

LGTM, but can you add a Unit Test, as suggested by @ferdymercury?

[couet]

Note the proper syntax is:

   c.Print("outputJIRA7087.pdf(");
...
   c.Print("outputJIRA7087.pdf)");

With parenthesis... not square brakets.

[ferdymercury]

With parenthesis... not square brackets.

Both options are supported, see e06e246

[couet]

This is not equivalent. Try your test with [ and see the doc of TPad::Print

[ferdymercury]

Thanks a lot!