kc3-lang/gnulib/doc/posix-functions/wctype.texi

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• Hash : a07c0e4b
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  Date : 2023-08-30T02:19:01
  

  wctype: Rely on module iswpunct.
  
  * m4/wctype.m4 (gl_FUNC_WCTYPE): Also test whether the "punct" class
  works.
  * modules/wctype (Depends-on): Add iswpunct.
  * tests/test-iswctype.c (main): Add more tests of the "punct" class.
  * doc/posix-functions/wctype.texi: Mention the Android problem.
  

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• doc/posix-functions/wctype.texi

• @node wctype
  @section @code{wctype}
  @findex wctype
  
  POSIX specification:@* @url{https://pubs.opengroup.org/onlinepubs/9699919799/functions/wctype.html}
  
  Gnulib module: wctype
  
  Portability problems fixed by Gnulib:
  @itemize
  @item
  This function is missing on some platforms:
  Minix 3.1.8, MSVC 9.
  @item
  This function is declared in @code{<wchar.h>}, not in @code{<wctype.h>}, on
  some platforms:
  HP-UX 11.00.
  @item
  This function does not support the @code{"blank"} character class
  on some platforms:
  mingw.
  @item
  The object returned by this function for the @code{"blank"} character class
  is inconsistent with the @code{iswblank} and @code{isblank} functions
  on some platforms:
  MSVC 14.
  @item
  The object returned by this function for the @code{"punct"} character class
  is inconsistent with the @code{ispunct} function on some platforms:
  Android 11.
  @end itemize
  
  Portability problems not fixed by Gnulib:
  @itemize
  @item
  On Windows and 32-bit AIX platforms, @code{wchar_t} is a 16-bit type and therefore cannot
  accommodate all Unicode characters.
  However, the Gnulib function @code{c32_get_type_test}, provided by Gnulib
  module @code{c32_get_type_test}, operates on 32-bit wide characters and
  therefore does not have this limitation.
  @end itemize
  

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