Date: Mon, 9 Apr 2001 02:15:33 -0400 (EDT) From: adrian@ubergeeks.com To: FreeBSD-gnats-submit@freebsd.org Subject: docs/26451: ctype and related manpages are incomplete Message-ID: <200104090615.f396FXp44582@lorax.ubergeeks.com>
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>Number: 26451
>Category: docs
>Synopsis: ctype.h defined functions are not accurately documented, if at all
>Confidential: no
>Severity: non-critical
>Priority: low
>Responsible: freebsd-doc
>State: open
>Quarter:
>Keywords:
>Date-Required:
>Class: doc-bug
>Submitter-Id: current-users
>Arrival-Date: Sun Apr 08 23:10:00 PDT 2001
>Closed-Date:
>Last-Modified:
>Originator: Adrian Filipi-Martin
>Release: FreeBSD 4.3-RC i386
>Organization:
Ubergeeks Consulting
>Environment:
System: FreeBSD lorax.ubergeeks.com 4.3-RC FreeBSD 4.3-RC #0: Sat Mar 31 20:53:47 EST 2001 root@lorax.ubergeeks.com:/home/obj/usr/src/sys/LORAX i386
>Description:
1. ctype.h defines digittoint(), isnumber() and ishexnmber(), yet
they are not documented in any of the manpages.
2. The ctype manpage references a non-existent manpage for
digittoint().
3. The isascii() manpage claims it is standards compliant, when
it isn't.
4. isblank() claims it is _not_ standards compliant, when it
is. Note, I only have the C99 standard, so the manpage references
C99 instead of C89. It may be compliant with the old standard as well,
but someone else needs to check.
>How-To-Repeat:
Read ctype.h and ctype.3.
>Fix:
Apply the attched patch in /usr/src/lib/libc/locale.
--- Makefile.inc.orig Mon Apr 9 00:24:08 2001
+++ Makefile.inc Mon Apr 9 01:58:18 2001
@@ -10,11 +10,11 @@
tolower.c toupper.c utf2.c
.if ${LIB} == "c"
-MAN3+= ctype.3 isalnum.3 isalpha.3 isascii.3 isblank.3 iscntrl.3 \
- isdigit.3 isgraph.3 islower.3 isprint.3 ispunct.3 isspace.3 \
- isupper.3 isxdigit.3 mbrune.3 multibyte.3 rune.3 setlocale.3 \
- toascii.3 tolower.3 toupper.3
-MAN4+= euc.4 utf2.4
+MAN3+= ctype.3 digittoint.3 isalnum.3 isalpha.3 isascii.3 isblank.3 \
+ iscntrl.3 isdigit.3 isgraph.3 islower.3 \
+ isprint.3 ispunct.3 isspace.3 isupper.3 isxdigit.3 mbrune.3 \
+ multibyte.3 rune.3 setlocale.3 toascii.3 tolower.3 toupper.3
+MAN4+= euc.4 utf2.4
MLINKS+=mbrune.3 mbmb.3 mbrune.3 mbrrune.3
MLINKS+=multibyte.3 mblen.3 multibyte.3 mbstowcs.3 multibyte.3 mbtowc.3 \
@@ -23,4 +23,6 @@
rune.3 setinvalidrune.3 rune.3 setrunelocale.3 rune.3 sgetrune.3 \
rune.3 sputrune.3
MLINKS+=setlocale.3 localeconv.3
+MLINKS+=isxdigit.3 ishexnumber.3
+MLINKS+=isdigit.3 isnumber.3
.endif
--- ctype.3.orig Mon Apr 9 00:18:24 2001
+++ ctype.3 Mon Apr 9 01:58:18 2001
@@ -55,6 +55,7 @@
.Nm isspecial ,
.Nm isupper ,
.Nm isxdigit ,
+.Nm digittoint ,
.Nm toascii ,
.Nm tolower ,
.Nm toupper
@@ -100,6 +101,8 @@
.Ft int
.Fn isxdigit "int c"
.Ft int
+.Fn digittoint "int c"
+.Ft int
.Fn toascii "int c"
.Ft int
.Fn tolower "int c"
@@ -126,6 +129,7 @@
.Xr isspace 3 ,
.Xr isupper 3 ,
.Xr isxdigit 3 ,
+.Xr digittoint 3 ,
.Xr toascii 3 ,
.Xr tolower 3 ,
.Xr toupper 3 ,
@@ -134,7 +138,6 @@
These functions, except for
.Fn digittoint ,
.Fn isascii ,
-.Fn isblank ,
.Fn ishexnumber ,
.Fn isideogram ,
.Fn isnumber ,
@@ -145,3 +148,6 @@
.Fn toascii ,
conform to
.St -isoC .
+.Fn isblank
+conforms to
+.St -isoC-99 .
--- digittoint.3.orig Mon Apr 9 00:40:31 2001
+++ digittoint.3 Mon Apr 9 02:06:55 2001
@@ -0,0 +1,77 @@
+.\" Copyright (c) 1993
+.\" The Regents of the University of California. All rights reserved.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\" notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\" notice, this list of conditions and the following disclaimer in the
+.\" documentation and/or other materials provided with the distribution.
+.\" 3. All advertising materials mentioning features or use of this software
+.\" must display the following acknowledgement:
+.\" This product includes software developed by the University of
+.\" California, Berkeley and its contributors.
+.\" 4. Neither the name of the University nor the names of its contributors
+.\" may be used to endorse or promote products derived from this software
+.\" without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\"
+.\" @(#)digittoint.3 8.1 (Berkeley) 6/4/93
+.\" $FreeBSD$
+.\"
+.Dd April 6, 2001
+.Dt DIGITTOINT 3
+.Os
+.Sh NAME
+.Nm digittoint
+.Nd convert a numeric character to its integer value
+.Sh LIBRARY
+.Lb libc
+.Sh SYNOPSIS
+.Fd #include <ctype.h>
+.Ft int
+.Fn digittoint "int c"
+.Sh DESCRIPTION
+The
+.Fn digittoint
+function converts a numeric character to its corresponding integer value. The
+character an be any decimal digit or hexadecimal digit. With hexadecimal
+characters, the case of the values does not matter.
+.Sh RETURN VALUES
+The
+.Fn digittoint
+function always returns an integer from the range of 0 to 15. If the
+given character was not a digit as defined by
+.Xr isxdigit 3 , the function will return 0.
+
+.Sh SEE ALSO
+.Xr isalnum 3 ,
+.Xr isalpha 3 ,
+.Xr isascii 3 ,
+.Xr iscntrl 3 ,
+.Xr isdigit 3 ,
+.Xr isgraph 3 ,
+.Xr islower 3 ,
+.Xr isprint 3 ,
+.Xr ispunct 3 ,
+.Xr isspace 3 ,
+.Xr isupper 3 ,
+.Xr isxdigit 3 ,
+.Xr stdio 3 ,
+.Xr digittoint 3 ,
+.Xr tolower 3 ,
+.Xr toupper 3 ,
+.Xr ascii 7
--- isascii.3.orig Mon Apr 9 00:37:32 2001
+++ isascii.3 Mon Apr 9 01:58:18 2001
@@ -54,8 +54,3 @@
.Sh SEE ALSO
.Xr ctype 3 ,
.Xr ascii 7
-.Sh STANDARDS
-The
-.Fn isascii
-function conforms to
-.St -isoC .
--- isblank.3.orig Mon Apr 9 01:15:09 2001
+++ isblank.3 Mon Apr 9 01:58:18 2001
@@ -66,3 +66,7 @@
.Xr ctype 3 ,
.Xr multibyte 3 ,
.Xr ascii 7
+.Sh STANDARDS
+.Fn isblank
+conforms to
+.St -isoC-99 .
--- isdigit.3.orig Mon Apr 9 01:38:15 2001
+++ isdigit.3 Mon Apr 9 01:58:18 2001
@@ -40,7 +40,7 @@
.Dt ISDIGIT 3
.Os
.Sh NAME
-.Nm isdigit
+.Nm isdigit, isnumber
.Nd decimal-digit character test
.Sh LIBRARY
.Lb libc
@@ -48,6 +48,8 @@
.Fd #include <ctype.h>
.Ft int
.Fn isdigit "int c"
+.Ft int
+.Fn isnumber "int c"
.Sh DESCRIPTION
The
.Fn isdigit
@@ -68,11 +70,25 @@
.It "\&060\ ``0'' \t061\ ``1'' \t062\ ``2'' \t063\ ``3'' \t064\ ``4''"
.It "\&065\ ``5'' \t066\ ``6'' \t067\ ``7'' \t070\ ``8'' \t071\ ``9''"
.El
+.Pp
+The difference bwtween
+.Fn isdigit
+and
+.Fn isnumber
+is that
+.Fn isnumber
+uses the current locale, but
+.Fn isdigit
+always uses the
+.Li "\&""C""
+locale.
.Sh RETURN VALUES
The
.Fn isdigit
-function returns zero if the character tests false and
-returns non-zero if the character tests true.
+and
+.Fn isnumber
+functions return zero if the character tests false and
+return non-zero if the character tests true.
.Sh SEE ALSO
.Xr ctype 3 ,
.Xr multibyte 3 ,
--- isxdigit.3.orig Mon Apr 9 01:30:38 2001
+++ isxdigit.3 Mon Apr 9 01:58:18 2001
@@ -40,7 +40,7 @@
.Dt ISXDIGIT 3
.Os
.Sh NAME
-.Nm isxdigit
+.Nm isxdigit, ishexnumber
.Nd hexadecimal-digit character test
.Sh LIBRARY
.Lb libc
@@ -48,6 +48,8 @@
.Fd #include <ctype.h>
.Ft int
.Fn isxdigit "int c"
+.Ft int
+.Fn ishexnumber "int c"
.Sh DESCRIPTION
The
.Fn isxdigit
@@ -71,11 +73,25 @@
.It "\&106\ ``F'' \t141\ ``a'' \t142\ ``b'' \t143\ ``c'' \t144\ ``d''"
.It "\&145\ ``e'' \t146\ ``f''"
.El
+.Pp
+The difference bwtween
+.Fn isxdigit
+and
+.Fn ishexnumber
+is that
+.Fn ishexnumber
+uses the current locale, but
+.Fn isxdigit
+always uses the
+.Li "\&""C""
+locale.
.Sh RETURN VALUES
The
.Fn isxdigit
-function returns zero if the character tests false and
-returns non-zero if the character tests true.
+and
+.Fn ishexnumber
+functions return zero if the character tests false and
+return non-zero if the character tests true.
.Sh SEE ALSO
.Xr ctype 3 ,
.Xr multibyte 3 ,
--- toascii.3.orig Mon Apr 9 00:18:24 2001
+++ toascii.3 Mon Apr 9 01:58:18 2001
@@ -54,6 +54,7 @@
.Fn toascii
function always returns a valid ASCII character.
.Sh SEE ALSO
+.Xr digittoint 3 ,
.Xr isalnum 3 ,
.Xr isalpha 3 ,
.Xr isascii 3 ,
--- tolower.3.orig Mon Apr 9 00:18:24 2001
+++ tolower.3 Mon Apr 9 01:58:18 2001
@@ -68,6 +68,7 @@
function returns the corresponding lower-case letter if there is
one; otherwise the argument is returned unchanged.
.Sh SEE ALSO
+.Xr digittoint 3 ,
.Xr isalnum 3 ,
.Xr isalpha 3 ,
.Xr isascii 3 ,
--- toupper.3.orig Mon Apr 9 00:18:24 2001
+++ toupper.3 Mon Apr 9 01:58:18 2001
@@ -68,6 +68,7 @@
function returns the corresponding upper-case letter if there is
one; otherwise the argument is returned unchanged.
.Sh SEE ALSO
+.Xr digittoint 3 ,
.Xr isalnum 3 ,
.Xr isalpha 3 ,
.Xr isascii 3 ,
>Release-Note:
>Audit-Trail:
>Unformatted:
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