This creates three variants of mbsnlen function for Unicode strings (rather
than multibyte character strings in the locale encoding). They are needed
for Unicode-enabled *printf functions.
2007-06-10 Bruno Haible <[EMAIL PROTECTED]>
* modules/unistr/u32-mbsnlen: New file.
* lib/unistr/u32-mbsnlen.c: New file.
* modules/unistr/u16-mbsnlen: New file.
* lib/unistr/u16-mbsnlen.c: New file.
* modules/unistr/u8-mbsnlen: New file.
* lib/unistr/u8-mbsnlen.c: New file.
* lib/unistr.h (u8_mbsnlen, u16_mbsnlen, u32_mbsnlen): New
declarations.
*** lib/unistr.h 28 Mar 2007 21:37:36 -0000 1.9
--- lib/unistr.h 11 Jun 2007 00:30:15 -0000
***************
*** 411,416 ****
--- 411,425 ----
extern uint32_t *
u32_chr (const uint32_t *s, size_t n, ucs4_t uc);
+ /* Count the number of Unicode characters in the N units from S. */
+ /* Similar to mbsnlen(). */
+ extern size_t
+ u8_mbsnlen (const uint8_t *s, size_t n);
+ extern size_t
+ u16_mbsnlen (const uint16_t *s, size_t n);
+ extern size_t
+ u32_mbsnlen (const uint32_t *s, size_t n);
+
/* Elementary string functions with memory allocation. */
/* Make a freshly allocated copy of S, of length N. */
============================= lib/unistr/u8-mbsnlen.c ========================
/* Count characters in UTF-8 string.
Copyright (C) 2007 Free Software Foundation, Inc.
Written by Bruno Haible <[EMAIL PROTECTED]>, 2007.
This program is free software; you can redistribute it and/or modify it
under the terms of the GNU Library General Public License as published
by the Free Software Foundation; either version 2, or (at your option)
any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
USA. */
#include <config.h>
/* Specification. */
#include "unistr.h"
size_t
u8_mbsnlen (const uint8_t *s, size_t n)
{
size_t characters;
characters = 0;
while (n > 0)
{
int count = u8_mblen (s, n);
if (count <= 0)
count = 1;
s += count;
n -= count;
characters++;
}
return characters;
}
============================= lib/unistr/u16-mbsnlen.c ========================
/* Count characters in UTF-16 string.
Copyright (C) 2007 Free Software Foundation, Inc.
Written by Bruno Haible <[EMAIL PROTECTED]>, 2007.
This program is free software; you can redistribute it and/or modify it
under the terms of the GNU Library General Public License as published
by the Free Software Foundation; either version 2, or (at your option)
any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
USA. */
#include <config.h>
/* Specification. */
#include "unistr.h"
size_t
u16_mbsnlen (const uint16_t *s, size_t n)
{
size_t characters;
characters = 0;
while (n > 0)
{
int count = u16_mblen (s, n);
if (count <= 0)
count = 1;
s += count;
n -= count;
characters++;
}
return characters;
}
============================= lib/unistr/u32-mbsnlen.c ========================
/* Count characters in UTF-32 string.
Copyright (C) 2007 Free Software Foundation, Inc.
Written by Bruno Haible <[EMAIL PROTECTED]>, 2007.
This program is free software; you can redistribute it and/or modify it
under the terms of the GNU Library General Public License as published
by the Free Software Foundation; either version 2, or (at your option)
any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
USA. */
#include <config.h>
/* Specification. */
#include "unistr.h"
size_t
u32_mbsnlen (const uint32_t *s, size_t n)
{
return n;
}
============================= modules/unistr/u8-mbsnlen =======================
Description:
Count characters in UTF-8 string.
Files:
lib/unistr/u8-mbsnlen.c
Depends-on:
unistr/base
unistr/u8-mblen
configure.ac:
Makefile.am:
lib_SOURCES += unistr/u8-mbsnlen.c
Include:
"unistr.h"
License:
LGPL
Maintainer:
Bruno Haible
============================= modules/unistr/u16-mbsnlen =======================
Description:
Count characters in UTF-16 string.
Files:
lib/unistr/u16-mbsnlen.c
Depends-on:
unistr/base
unistr/u16-mblen
configure.ac:
Makefile.am:
lib_SOURCES += unistr/u16-mbsnlen.c
Include:
"unistr.h"
License:
LGPL
Maintainer:
Bruno Haible
============================= modules/unistr/u32-mbsnlen =======================
Description:
Count characters in UTF-32 string.
Files:
lib/unistr/u32-mbsnlen.c
Depends-on:
unistr/base
configure.ac:
Makefile.am:
lib_SOURCES += unistr/u32-mbsnlen.c
Include:
"unistr.h"
License:
LGPL
Maintainer:
Bruno Haible
