m4 ChangeLog NEWS doc/m4.texinfo src/builtin.c [branch-1_4]

[Eric Blake]

CVSROOT:        /sources/m4
Module name:    m4
Branch:         branch-1_4
Changes by:     Eric Blake <ericb>      06/08/24 14:27:33

Modified files:
        .              : ChangeLog NEWS 
        doc            : m4.texinfo 
        src            : builtin.c 

Log message:
        * src/builtin.c (m4_index, m4_substr, m4_translit): Similar to
        Solaris, produce output on just one argument.
        (m4_regexp, m4_patsubst): For consistency, do likewise.
        (m4_patsubst): Allow zero-length match at end of string.
        * doc/m4.texinfo (Sysval): Fix overfull hbox.
        (Bugs, Macro Arguments): Minor fixes.
        (Other tokens): Rearrange node order.
        (Index macro, Substr, Translit, Regexp, Patsubst): Add tests.
        * NEWS: Document these fixes.

CVSWeb URLs:
http://cvs.savannah.gnu.org/viewcvs/m4/ChangeLog?cvsroot=m4&only_with_tag=branch-1_4&r1=1.1.1.1.2.166&r2=1.1.1.1.2.167
http://cvs.savannah.gnu.org/viewcvs/m4/NEWS?cvsroot=m4&only_with_tag=branch-1_4&r1=1.1.1.1.2.55&r2=1.1.1.1.2.56
http://cvs.savannah.gnu.org/viewcvs/m4/doc/m4.texinfo?cvsroot=m4&only_with_tag=branch-1_4&r1=1.1.1.1.2.69&r2=1.1.1.1.2.70
http://cvs.savannah.gnu.org/viewcvs/m4/src/builtin.c?cvsroot=m4&only_with_tag=branch-1_4&r1=1.1.1.1.2.36&r2=1.1.1.1.2.37