new modules string-desc, xstring-desc, string-desc-quotearg

[Bruno Haible]

Thanks for the inputs and feedbacks. Here are the new modules
  string-desc,
  xstring-desc,
  string-desc-quotearg
that I'm adding.


2023-03-28  Bruno Haible  <bruno@clisp.org>

        doc: Document string-desc and related modules.
        * doc/string-desc.texi: New file.
        * doc/gnulib.texi (Particular Modules): Include it.

        string-desc-quotearg: Add tests.
        * tests/test-string-desc-quotearg.c: New file.
        * modules/string-desc-quotearg-tests: New file.

        string-desc-quotearg: New module.
        * lib/string-desc-quotearg.h: New file.
        * lib/string-desc-quotearg.c: New file.
        * modules/string-desc-quotearg: New file.

        xstring-desc: Add tests.
        * tests/test-xstring-desc.c: New file.
        * modules/xstring-desc-tests: New file.

        xstring-desc: New module.
        * lib/xstring-desc.h: New file.
        * lib/xstring-desc.c: New file.
        * modules/xstring-desc: New file.

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

        string-desc: New module.
        * lib/string-desc.h: New file.
        * lib/string-desc.c: New file.
        * lib/string-desc-contains.c: New file.
        * modules/string-desc: New file.

0001-string-desc-New-module.patch
Description: Text Data

0002-string-desc-Add-tests.patch
Description: Text Data

0003-xstring-desc-New-module.patch
Description: Text Data

0004-xstring-desc-Add-tests.patch
Description: Text Data

0005-string-desc-quotearg-New-module.patch
Description: Text Data

0006-string-desc-quotearg-Add-tests.patch
Description: Text Data

0007-doc-Document-string-desc-and-related-modules.patch
Description: Text Data