Fix l3regex after changes to seq internal structure.


git-svn-id: http://www.latex-project.org/svnroot/experimental/trunk@4568 de43f980-851b-0410-b2f7-c40aca1f87e0
Fix l3str-format after changes to seq internal structure.


git-svn-id: http://www.latex-project.org/svnroot/experimental/trunk@4569 de43f980-851b-0410-b2f7-c40aca1f87e0
One additional \<thing>_case:nn(TF) function to be documented


git-svn-id: http://www.latex-project.org/svnroot/experimental/trunk@4570 de43f980-851b-0410-b2f7-c40aca1f87e0
Also a s/n/f/g


git-svn-id: http://www.latex-project.org/svnroot/experimental/trunk@4571 de43f980-851b-0410-b2f7-c40aca1f87e0
Fix l3hooks after l3seq changes.

The code now does not rely on internals of l3seq, thanks
to \seq_gset_filter:NNn.


git-svn-id: http://www.latex-project.org/svnroot/experimental/trunk@4572 de43f980-851b-0410-b2f7-c40aca1f87e0