Merging upstream version 6.8.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 0 insertions, 405 deletions

diff --git a/man3/isalpha.3 b/man3/isalpha.3
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-'\" t
-.\" Copyright (c) 1993 by Thomas Koenig (ig25@rz.uni-karlsruhe.de)
-.\"
-.\" SPDX-License-Identifier: Linux-man-pages-copyleft
-.\"
-.\" Modified Sat Jul 24 19:10:00 1993 by Rik Faith (faith@cs.unc.edu)
-.\" Modified Sun Aug 21 17:51:50 1994 by Rik Faith (faith@cs.unc.edu)
-.\" Modified Sat Sep  2 21:52:01 1995 by Jim Van Zandt <jrv@vanzandt.mv.com>
-.\" Modified Mon May 27 22:55:26 1996 by Martin Schulze (joey@linux.de)
-.\"
-.TH isalpha 3 2024-02-25 "Linux man-pages 6.7"
-.SH NAME
-isalnum, isalpha, isascii, isblank, iscntrl, isdigit, isgraph, islower,
-isprint, ispunct, isspace, isupper, isxdigit,
-isalnum_l, isalpha_l, isascii_l, isblank_l, iscntrl_l,
-isdigit_l, isgraph_l, islower_l,
-isprint_l, ispunct_l, isspace_l, isupper_l, isxdigit_l
-\- character classification functions
-.SH LIBRARY
-Standard C library
-.RI ( libc ", " \-lc )
-.SH SYNOPSIS
-.nf
-.B #include <ctype.h>
-.P
-.BI "int isalnum(int " c );
-.BI "int isalpha(int " c );
-.BI "int iscntrl(int " c );
-.BI "int isdigit(int " c );
-.BI "int isgraph(int " c );
-.BI "int islower(int " c );
-.BI "int isprint(int " c );
-.BI "int ispunct(int " c );
-.BI "int isspace(int " c );
-.BI "int isupper(int " c );
-.BI "int isxdigit(int " c );
-.P
-.BI "int isascii(int " c );
-.BI "int isblank(int " c );
-.P
-.BI "int isalnum_l(int " c ", locale_t " locale );
-.BI "int isalpha_l(int " c ", locale_t " locale );
-.BI "int isblank_l(int " c ", locale_t " locale );
-.BI "int iscntrl_l(int " c ", locale_t " locale );
-.BI "int isdigit_l(int " c ", locale_t " locale );
-.BI "int isgraph_l(int " c ", locale_t " locale );
-.BI "int islower_l(int " c ", locale_t " locale );
-.BI "int isprint_l(int " c ", locale_t " locale );
-.BI "int ispunct_l(int " c ", locale_t " locale );
-.BI "int isspace_l(int " c ", locale_t " locale );
-.BI "int isupper_l(int " c ", locale_t " locale );
-.BI "int isxdigit_l(int " c ", locale_t " locale );
-.P
-.BI "int isascii_l(int " c ", locale_t " locale );
-.fi
-.P
-.RS -4
-Feature Test Macro Requirements for glibc (see
-.BR feature_test_macros (7)):
-.RE
-.ad l
-.P
-.BR isascii ():
-.nf
-    _XOPEN_SOURCE
-        || /* glibc >= 2.19: */ _DEFAULT_SOURCE
-        || /* glibc <= 2.19: */ _SVID_SOURCE
-.fi
-.P
-.BR isblank ():
-.nf
-    _ISOC99_SOURCE || _POSIX_C_SOURCE >= 200112L
-.fi
-.P
-.BR \%salnum_l (),
-.BR \%salpha_l (),
-.BR \%sblank_l (),
-.BR \%scntrl_l (),
-.BR \%sdigit_l (),
-.BR \%sgraph_l (),
-.BR \%slower_l (),
-.BR \%sprint_l (),
-.BR \%spunct_l (),
-.BR \%sspace_l (),
-.BR \%supper_l (),
-.BR \%sxdigit_l ():
-.nf
-    Since glibc 2.10:
-        _XOPEN_SOURCE >= 700
-    Before glibc 2.10:
-        _GNU_SOURCE
-.fi
-.P
-.BR isascii_l ():
-.nf
-    Since glibc 2.10:
-        _XOPEN_SOURCE >= 700 && (_SVID_SOURCE || _BSD_SOURCE)
-    Before glibc 2.10:
-        _GNU_SOURCE
-.fi
-.ad
-.SH DESCRIPTION
-These functions check whether
-.IR c ,
-which must have the value of an
-.I unsigned char
-or
-.BR EOF ,
-falls into a certain character class according to the specified locale.
-The functions without the
-"_l" suffix perform the check based on the current locale.
-.P
-The functions with the "_l" suffix perform the check
-based on the locale specified by the locale object
-.IR locale .
-The behavior of these functions is undefined if
-.I locale
-is the special locale object
-.B LC_GLOBAL_LOCALE
-(see
-.BR duplocale (3))
-or is not a valid locale object handle.
-.P
-The list below explains the operation of the functions without
-the "_l" suffix;
-the functions with the "_l" suffix differ only in using the locale object
-.I locale
-instead of the current locale.
-.TP
-.BR isalnum ()
-checks for an alphanumeric character; it is equivalent to
-.BI "(isalpha(" c ") || isdigit(" c "))" \fR.
-.TP
-.BR isalpha ()
-checks for an alphabetic character; in the standard \fB"C"\fP
-locale, it is equivalent to
-.BI "(isupper(" c ") || islower(" c "))" \fR.
-In some locales, there may be additional characters for which
-.BR isalpha ()
-is true\[em]letters which are neither uppercase nor lowercase.
-.TP
-.BR isascii ()
-checks whether \fIc\fP is a 7-bit
-.I unsigned char
-value that fits into
-the ASCII character set.
-.TP
-.BR isblank ()
-checks for a blank character; that is, a space or a tab.
-.TP
-.BR iscntrl ()
-checks for a control character.
-.TP
-.BR isdigit ()
-checks for a digit (0 through 9).
-.TP
-.BR isgraph ()
-checks for any printable character except space.
-.TP
-.BR islower ()
-checks for a lowercase character.
-.TP
-.BR isprint ()
-checks for any printable character including space.
-.TP
-.BR ispunct ()
-checks for any printable character which is not a space or an
-alphanumeric character.
-.TP
-.BR isspace ()
-checks for white-space characters.
-In the
-.B \[dq]C\[dq]
-and
-.B \[dq]POSIX\[dq]
-locales, these are: space, form-feed
-.RB ( \[aq]\ef\[aq] ),
-newline
-.RB ( \[aq]\en\[aq] ),
-carriage return
-.RB ( \[aq]\er\[aq] ),
-horizontal tab
-.RB ( \[aq]\et\[aq] ),
-and vertical tab
-.RB ( \[aq]\ev\[aq] ).
-.TP
-.BR isupper ()
-checks for an uppercase letter.
-.TP
-.BR isxdigit ()
-checks for hexadecimal digits, that is, one of
-.br
-.BR "0 1 2 3 4 5 6 7 8 9 a b c d e f A B C D E F" .
-.SH RETURN VALUE
-The values returned are nonzero if the character
-.I c
-falls into the tested class, and zero if not.
-.SH ATTRIBUTES
-For an explanation of the terms used in this section, see
-.BR attributes (7).
-.TS
-allbox;
-lbx lb lb
-l l l.
-Interface	Attribute	Value
-T{
-.na
-.nh
-.BR isalnum (),
-.BR isalpha (),
-.BR isascii (),
-.BR isblank (),
-.BR iscntrl (),
-.BR isdigit (),
-.BR isgraph (),
-.BR islower (),
-.BR isprint (),
-.BR ispunct (),
-.BR isspace (),
-.BR isupper (),
-.BR isxdigit ()
-T}	Thread safety	MT-Safe
-.TE
-.\" FIXME: need a thread-safety statement about the *_l functions
-.SH STANDARDS
-.TP
-.BR isalnum ()
-.TQ
-.BR isalpha ()
-.TQ
-.BR iscntrl ()
-.TQ
-.BR isdigit ()
-.TQ
-.BR isgraph ()
-.TQ
-.BR islower ()
-.TQ
-.BR isprint ()
-.TQ
-.BR ispunct ()
-.TQ
-.BR isspace ()
-.TQ
-.BR isupper ()
-.TQ
-.BR isxdigit ()
-.TQ
-.BR isblank ()
-C11, POSIX.1-2008.
-.TP
-.BR isascii ()
-.TQ
-.BR isalnum_l ()
-.TQ
-.BR isalpha_l ()
-.TQ
-.BR isblank_l ()
-.TQ
-.BR iscntrl_l ()
-.TQ
-.BR isdigit_l ()
-.TQ
-.BR isgraph_l ()
-.TQ
-.BR islower_l ()
-.TQ
-.BR isprint_l ()
-.TQ
-.BR ispunct_l ()
-.TQ
-.BR isspace_l ()
-.TQ
-.BR isupper_l ()
-.TQ
-.BR isxdigit_l ()
-POSIX.1-2008.
-.TP
-.BR isascii_l ()
-GNU.
-.SH HISTORY
-.TP
-.BR isalnum ()
-.TQ
-.BR isalpha ()
-.TQ
-.BR iscntrl ()
-.TQ
-.BR isdigit ()
-.TQ
-.BR isgraph ()
-.TQ
-.BR islower ()
-.TQ
-.BR isprint ()
-.TQ
-.BR ispunct ()
-.TQ
-.BR isspace ()
-.TQ
-.BR isupper ()
-.TQ
-.BR isxdigit ()
-C89, POSIX.1-2001.
-.TP
-.BR isblank ()
-C99, POSIX.1-2001.
-.TP
-.BR isascii ()
-POSIX.1-2001 (XSI).
-.IP
-POSIX.1-2008 marks it as obsolete,
-noting that it cannot be used portably in a localized application.
-.TP
-.BR isalnum_l ()
-.TQ
-.BR isalpha_l ()
-.TQ
-.BR isblank_l ()
-.TQ
-.BR iscntrl_l ()
-.TQ
-.BR isdigit_l ()
-.TQ
-.BR isgraph_l ()
-.TQ
-.BR islower_l ()
-.TQ
-.BR isprint_l ()
-.TQ
-.BR ispunct_l ()
-.TQ
-.BR isspace_l ()
-.TQ
-.BR isupper_l ()
-.TQ
-.BR isxdigit_l ()
-glibc 2.3.
-POSIX.1-2008.
-.TP
-.BR isascii_l ()
-glibc 2.3.
-.SH CAVEATS
-The standards require that the argument
-.I c
-for these functions is either
-.B EOF
-or a value that is representable in the type
-.IR "unsigned char" ;
-otherwise,
-the behavior is undefined.
-If the argument
-.I c
-is of type
-.IR char ,
-it must be cast to
-.IR "unsigned char" ,
-as in the following example:
-.P
-.in +4n
-.EX
-char c;
-\&...
-res = toupper((unsigned char) c);
-.EE
-.in
-.P
-This is necessary because
-.I char
-may be the equivalent of
-.IR "signed char" ,
-in which case a byte where the top bit is set would be sign extended when
-converting to
-.IR int ,
-yielding a value that is outside the range of
-.IR "unsigned char" .
-.P
-The details of what characters belong to which class depend on the
-locale.
-For example,
-.BR isupper ()
-will not recognize an A-umlaut (\(:A) as an uppercase letter in the default
-.B "C"
-locale.
-.SH SEE ALSO
-.BR iswalnum (3),
-.BR iswalpha (3),
-.BR iswblank (3),
-.BR iswcntrl (3),
-.BR iswdigit (3),
-.BR iswgraph (3),
-.BR iswlower (3),
-.BR iswprint (3),
-.BR iswpunct (3),
-.BR iswspace (3),
-.BR iswupper (3),
-.BR iswxdigit (3),
-.BR newlocale (3),
-.BR setlocale (3),
-.BR toascii (3),
-.BR tolower (3),
-.BR toupper (3),
-.BR uselocale (3),
-.BR ascii (7),
-.BR locale (7)