new modules 'c32isalnum', ..., 'c32isxdigit'

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new modules 'c32isalnum', ..., 'c32isxdigit'

From:	Bruno Haible
Subject:	new modules 'c32isalnum', ..., 'c32isxdigit'
Date:	Sun, 26 Jan 2020 00:33:20 +0100
User-agent:	KMail/5.1.3 (Linux/4.4.0-171-generic; KDE/5.18.0; x86_64; ; )

While mbrtoc32 converts a multibyte character to a 32-bit wide character,
without being impacted by the 16-bit limitation of wchar_t on some
platforms, you also need at least simple classification functions
for these wide characters - like iswalnum, ... iswxdigit, but
applicable to a 32-bit wide character.

The ISO C standard does not specify such functions. So I made up the naming
scheme:
  isw<class> -> c32is<class>

Here are implementations of these functions.

The test suite files (e.g. test-c32isalnum.c) look awful. But this gives
a certain feeling which assumptions about particular characters are more or
less portable, and which aren't. For example, is the INVERTED QUESTION MARK
a punctuation character or not? Implementations disagree. Good implementations,
like glibc, of course treat INVERTED QUESTION MARK as a punctuation character.

Only the c32isdigit and c32isxdigit functions behave the same across platforms
- because they are designed to mimic iswdigit and iswxdigit, which have a
behaviour firmly specified by ISO C 99.


2020-01-25  Bruno Haible  <address@hidden>

        c32isxdigit: Add tests.
        * tests/test-c32isxdigit.c: New file, based on tests/test-iswxdigit.c.
        * tests/test-c32isxdigit.sh: New file.
        * modules/c32isxdigit-tests: New file.

        c32isxdigit: New module.
        * lib/c32isxdigit.c: New file.
        * modules/c32isxdigit: New file.
        * doc/posix-functions/iswxdigit.texi: Mention the new module.

2020-01-25  Bruno Haible  <address@hidden>

        c32isupper: Add tests.
        * tests/test-c32isupper.c: New file.
        * tests/test-c32isupper.sh: New file.
        * modules/c32isupper-tests: New file.

        c32isupper: New module.
        * lib/c32isupper.c: New file.
        * modules/c32isupper: New file.
        * doc/posix-functions/iswupper.texi: Mention the new module.

2020-01-25  Bruno Haible  <address@hidden>

        c32isspace: Add tests.
        * tests/test-c32isspace.c: New file.
        * tests/test-c32isspace.sh: New file.
        * modules/c32isspace-tests: New file.

        c32isspace: New module.
        * lib/c32isspace.c: New file.
        * modules/c32isspace: New file.
        * doc/posix-functions/iswspace.texi: Mention the new module.

2020-01-25  Bruno Haible  <address@hidden>

        c32ispunct: Add tests.
        * tests/test-c32ispunct.c: New file.
        * tests/test-c32ispunct.sh: New file.
        * modules/c32ispunct-tests: New file.

        c32ispunct: New module.
        * lib/c32ispunct.c: New file.
        * modules/c32ispunct: New file.
        * doc/posix-functions/iswpunct.texi: Mention the new module.

2020-01-25  Bruno Haible  <address@hidden>

        c32isprint: Add tests.
        * tests/test-c32isprint.c: New file.
        * tests/test-c32isprint.sh: New file.
        * modules/c32isprint-tests: New file.

        c32isprint: New module.
        * lib/c32isprint.c: New file.
        * modules/c32isprint: New file.
        * doc/posix-functions/iswprint.texi: Mention the new module.

2020-01-25  Bruno Haible  <address@hidden>

        c32islower: Add tests.
        * tests/test-c32islower.c: New file.
        * tests/test-c32islower.sh: New file.
        * modules/c32islower-tests: New file.

        c32islower: New module.
        * lib/c32islower.c: New file.
        * modules/c32islower: New file.
        * doc/posix-functions/iswlower.texi: Mention the new module.

2020-01-25  Bruno Haible  <address@hidden>

        c32isgraph: Add tests.
        * tests/test-c32isgraph.c: New file.
        * tests/test-c32isgraph.sh: New file.
        * modules/c32isgraph-tests: New file.

        c32isgraph: New module.
        * lib/c32isgraph.c: New file.
        * modules/c32isgraph: New file.
        * doc/posix-functions/iswgraph.texi: Mention the new module.

2020-01-25  Bruno Haible  <address@hidden>

        c32isdigit: Add tests.
        * tests/test-c32isdigit.c: New file, based on tests/test-iswdigit.c.
        * tests/test-c32isdigit.sh: New file.
        * modules/c32isdigit-tests: New file.

        c32isdigit: New module.
        * lib/c32isdigit.c: New file.
        * modules/c32isdigit: New file.
        * doc/posix-functions/iswdigit.texi: Mention the new module.

2020-01-25  Bruno Haible  <address@hidden>

        c32iscntrl: Add tests.
        * tests/test-c32iscntrl.c: New file.
        * tests/test-c32iscntrl.sh: New file.
        * modules/c32iscntrl-tests: New file.

        c32iscntrl: New module.
        * lib/c32iscntrl.c: New file.
        * modules/c32iscntrl: New file.
        * doc/posix-functions/iswcntrl.texi: Mention the new module.

2020-01-25  Bruno Haible  <address@hidden>

        c32isblank: Add tests.
        * tests/test-c32isblank.c: New file.
        * tests/test-c32isblank.sh: New file.
        * modules/c32isblank-tests: New file.

        c32isblank: New module.
        * lib/c32isblank.c: New file.
        * modules/c32isblank: New file.
        * doc/posix-functions/iswblank.texi: Mention the new module.

2020-01-25  Bruno Haible  <address@hidden>

        c32isalpha: Add tests.
        * tests/test-c32isalpha.c: New file.
        * tests/test-c32isalpha.sh: New file.
        * modules/c32isalpha-tests: New file.

        c32isalpha: New module.
        * lib/c32isalpha.c: New file.
        * modules/c32isalpha: New file.
        * doc/posix-functions/iswalpha.texi: Mention the new module.

2020-01-25  Bruno Haible  <address@hidden>

        c32isalnum: Add tests.
        * tests/test-c32isalnum.c: New file.
        * tests/test-c32isalnum.sh: New file.
        * modules/c32isalnum-tests: New file.

        c32isalnum: New module.
        * lib/c32isalnum.c: New file.
        * lib/c32is-impl.h: New file.
        * modules/c32isalnum: New file.
        * doc/posix-functions/iswalnum.texi: Mention the new module.

2020-01-25  Bruno Haible  <address@hidden>

        uchar: Preparations for modules c32isalnum, ..., c32isxdigit.
        * lib/uchar.in.h (c32isalnum, c32isalpha, c32isblank, c32iscntrl,
        c32isdigit, c32isgraph, c32islower, c32isprint, c32ispunct, c32isspace,
        c32isupper, c32isxdigit): New declarations.
        * m4/uchar.m4 (gl_UCHAR_H_DEFAULTS): Initialize GNULIB_C32ISALNUM,
        GNULIB_C32ISALPHA, GNULIB_C32ISBLANK, GNULIB_C32ISCNTRL,
        GNULIB_C32ISDIGIT, GNULIB_C32ISGRAPH, GNULIB_C32ISLOWER,
        GNULIB_C32ISPRINT, GNULIB_C32ISPUNCT, GNULIB_C32ISSPACE,
        GNULIB_C32ISUPPER, GNULIB_C32ISXDIGIT.
        * modules/uchar (Makefile.am): Substitute GNULIB_C32ISALNUM,
        GNULIB_C32ISALPHA, GNULIB_C32ISBLANK, GNULIB_C32ISCNTRL,
        GNULIB_C32ISDIGIT, GNULIB_C32ISGRAPH, GNULIB_C32ISLOWER,
        GNULIB_C32ISPRINT, GNULIB_C32ISPUNCT, GNULIB_C32ISSPACE,
        GNULIB_C32ISUPPER, GNULIB_C32ISXDIGIT.
        * tests/test-uchar-c++.cc: Test the signature of c32isalnum, c32isalpha,
        c32isblank, c32iscntrl, c32isdigit, c32isgraph, c32islower, c32isprint,
        c32ispunct, c32isspace, c32isupper, c32isxdigit.

0001-uchar-Preparations-for-modules-c32isalnum-.-c32isxdi.patch
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