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Diffstat (limited to 'gnulib/doc/posix-functions/iscntrl.texi')
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diff --git a/gnulib b/gnulib deleted file mode 160000 -Subproject 4fc10daa05477586fea99b6b3ca02a87d1102fa diff --git a/gnulib/doc/posix-functions/iscntrl.texi b/gnulib/doc/posix-functions/iscntrl.texi new file mode 100644 index 00000000..b01d3e32 --- /dev/null +++ b/gnulib/doc/posix-functions/iscntrl.texi @@ -0,0 +1,40 @@ +@node iscntrl +@section @code{iscntrl} +@findex iscntrl + +POSIX specification: @url{http://www.opengroup.org/onlinepubs/9699919799/functions/iscntrl.html} + +Gnulib module: --- + +Portability problems fixed by Gnulib: +@itemize +@end itemize + +Portability problems not fixed by Gnulib: +@itemize +@end itemize + +Note: This function's behaviour depends on the locale, but does not support +the multibyte characters that occur in strings in locales with +@code{MB_CUR_MAX > 1} (this includes all the common UTF-8 locales). +There are four alternative APIs: + +@table @code +@item c_iscntrl +This function operates in a locale independent way and returns true only for +ASCII characters. It is provided by the Gnulib module @samp{c-ctype}. + +@item iswcntrl +This function operates in a locale dependent way, on wide characters. In +order to use it, you first have to convert from multibyte to wide characters, +using the @code{mbrtowc} function. It is provided by the Gnulib module +@samp{wctype}. + +@item mb_iscntrl +This function operates in a locale dependent way, on multibyte characters. +It is provided by the Gnulib module @samp{mbchar}. + +@item uc_is_cntrl +This function operates in a locale independent way, on Unicode characters. +It is provided by the Gnulib module @samp{unictype/ctype-cntrl}. +@end table |