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[/] [openrisc/] [trunk/] [gnu-old/] [gdb-7.1/] [readline/] [rlmbutil.h] - Diff between revs 834 and 842

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/* rlmbutil.h -- utility functions for multibyte characters. */
/* rlmbutil.h -- utility functions for multibyte characters. */
 
 
/* Copyright (C) 2001, 2003 Free Software Foundation, Inc.
/* Copyright (C) 2001, 2003 Free Software Foundation, Inc.
 
 
   This file is part of the GNU Readline Library, a library for
   This file is part of the GNU Readline Library, a library for
   reading lines of text with interactive input and history editing.
   reading lines of text with interactive input and history editing.
 
 
   The GNU Readline Library is free software; you can redistribute it
   The GNU Readline Library is free software; you can redistribute it
   and/or modify it under the terms of the GNU General Public License
   and/or modify it under the terms of the GNU General Public License
   as published by the Free Software Foundation; either version 2, or
   as published by the Free Software Foundation; either version 2, or
   (at your option) any later version.
   (at your option) any later version.
 
 
   The GNU Readline Library is distributed in the hope that it will be
   The GNU Readline Library is distributed in the hope that it will be
   useful, but WITHOUT ANY WARRANTY; without even the implied warranty
   useful, but WITHOUT ANY WARRANTY; without even the implied warranty
   of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   GNU General Public License for more details.
   GNU General Public License for more details.
 
 
   The GNU General Public License is often shipped with GNU software, and
   The GNU General Public License is often shipped with GNU software, and
   is generally kept in a file called COPYING or LICENSE.  If you do not
   is generally kept in a file called COPYING or LICENSE.  If you do not
   have a copy of the license, write to the Free Software Foundation,
   have a copy of the license, write to the Free Software Foundation,
   59 Temple Place, Suite 330, Boston, MA 02111 USA. */
   59 Temple Place, Suite 330, Boston, MA 02111 USA. */
 
 
#if !defined (_RL_MBUTIL_H_)
#if !defined (_RL_MBUTIL_H_)
#define _RL_MBUTIL_H_
#define _RL_MBUTIL_H_
 
 
#include "rlstdc.h"
#include "rlstdc.h"
 
 
/************************************************/
/************************************************/
/* check multibyte capability for I18N code     */
/* check multibyte capability for I18N code     */
/************************************************/
/************************************************/
 
 
/* For platforms which support the ISO C amendement 1 functionality we
/* For platforms which support the ISO C amendement 1 functionality we
   support user defined character classes.
   support user defined character classes.
 
 
   Some platforms have the multibyte functions such as mbsrtowcs but
   Some platforms have the multibyte functions such as mbsrtowcs but
   are lacking the multitype type mbstate_t.  BeOS (unknown version)
   are lacking the multitype type mbstate_t.  BeOS (unknown version)
   and HP/UX 11.23 without _XOPEN_SOURCE=500 are like this.
   and HP/UX 11.23 without _XOPEN_SOURCE=500 are like this.
 
 
   We really need mbstate_t type to operate properly.  For example, see
   We really need mbstate_t type to operate properly.  For example, see
   compute_lcd_of_matches, where two mbstate_t's are active at the same
   compute_lcd_of_matches, where two mbstate_t's are active at the same
   time.  So we require both the functions and the mbstate_t type in
   time.  So we require both the functions and the mbstate_t type in
   order to enable multibyte support.  */
   order to enable multibyte support.  */
 
 
   /* Solaris 2.5 has a bug: <wchar.h> must be included before <wctype.h>.  */
   /* Solaris 2.5 has a bug: <wchar.h> must be included before <wctype.h>.  */
#if defined (HAVE_WCTYPE_H) && defined (HAVE_WCHAR_H)
#if defined (HAVE_WCTYPE_H) && defined (HAVE_WCHAR_H)
#  include <wchar.h>
#  include <wchar.h>
#  include <wctype.h>
#  include <wctype.h>
#  if defined (HAVE_MBSTATE_T) && defined (HAVE_MBSRTOWCS) && defined (HAVE_MBRTOWC) && defined (HAVE_MBRLEN) && defined (HAVE_WCWIDTH)
#  if defined (HAVE_MBSTATE_T) && defined (HAVE_MBSRTOWCS) && defined (HAVE_MBRTOWC) && defined (HAVE_MBRLEN) && defined (HAVE_WCWIDTH)
     /* system is supposed to support XPG5 */
     /* system is supposed to support XPG5 */
#    define HANDLE_MULTIBYTE      1
#    define HANDLE_MULTIBYTE      1
#  endif
#  endif
#endif
#endif
 
 
/* If we don't want multibyte chars even on a system that supports them, let
/* If we don't want multibyte chars even on a system that supports them, let
   the configuring user turn multibyte support off. */
   the configuring user turn multibyte support off. */
#if defined (NO_MULTIBYTE_SUPPORT)
#if defined (NO_MULTIBYTE_SUPPORT)
#  undef HANDLE_MULTIBYTE
#  undef HANDLE_MULTIBYTE
#endif
#endif
 
 
/* Some systems, like BeOS, have multibyte encodings but lack mbstate_t.  */
/* Some systems, like BeOS, have multibyte encodings but lack mbstate_t.  */
#if HANDLE_MULTIBYTE && !defined (HAVE_MBSTATE_T)
#if HANDLE_MULTIBYTE && !defined (HAVE_MBSTATE_T)
#  define wcsrtombs(dest, src, len, ps) (wcsrtombs) (dest, src, len, 0)
#  define wcsrtombs(dest, src, len, ps) (wcsrtombs) (dest, src, len, 0)
#  define mbsrtowcs(dest, src, len, ps) (mbsrtowcs) (dest, src, len, 0)
#  define mbsrtowcs(dest, src, len, ps) (mbsrtowcs) (dest, src, len, 0)
#  define wcrtomb(s, wc, ps) (wcrtomb) (s, wc, 0)
#  define wcrtomb(s, wc, ps) (wcrtomb) (s, wc, 0)
#  define mbrtowc(pwc, s, n, ps) (mbrtowc) (pwc, s, n, 0)
#  define mbrtowc(pwc, s, n, ps) (mbrtowc) (pwc, s, n, 0)
#  define mbrlen(s, n, ps) (mbrlen) (s, n, 0)
#  define mbrlen(s, n, ps) (mbrlen) (s, n, 0)
#  define mbstate_t int
#  define mbstate_t int
#endif
#endif
 
 
/* Make sure MB_LEN_MAX is at least 16 on systems that claim to be able to
/* Make sure MB_LEN_MAX is at least 16 on systems that claim to be able to
   handle multibyte chars (some systems define MB_LEN_MAX as 1) */
   handle multibyte chars (some systems define MB_LEN_MAX as 1) */
#ifdef HANDLE_MULTIBYTE
#ifdef HANDLE_MULTIBYTE
#  include <limits.h>
#  include <limits.h>
#  if defined(MB_LEN_MAX) && (MB_LEN_MAX < 16)
#  if defined(MB_LEN_MAX) && (MB_LEN_MAX < 16)
#    undef MB_LEN_MAX
#    undef MB_LEN_MAX
#  endif
#  endif
#  if !defined (MB_LEN_MAX)
#  if !defined (MB_LEN_MAX)
#    define MB_LEN_MAX 16
#    define MB_LEN_MAX 16
#  endif
#  endif
#endif
#endif
 
 
/************************************************/
/************************************************/
/* end of multibyte capability checks for I18N  */
/* end of multibyte capability checks for I18N  */
/************************************************/
/************************************************/
 
 
/*
/*
 * Flags for _rl_find_prev_mbchar and _rl_find_next_mbchar:
 * Flags for _rl_find_prev_mbchar and _rl_find_next_mbchar:
 *
 *
 * MB_FIND_ANY          find any multibyte character
 * MB_FIND_ANY          find any multibyte character
 * MB_FIND_NONZERO      find a non-zero-width multibyte character
 * MB_FIND_NONZERO      find a non-zero-width multibyte character
 */
 */
 
 
#define MB_FIND_ANY     0x00
#define MB_FIND_ANY     0x00
#define MB_FIND_NONZERO 0x01
#define MB_FIND_NONZERO 0x01
 
 
extern int _rl_find_prev_mbchar PARAMS((char *, int, int));
extern int _rl_find_prev_mbchar PARAMS((char *, int, int));
extern int _rl_find_next_mbchar PARAMS((char *, int, int, int));
extern int _rl_find_next_mbchar PARAMS((char *, int, int, int));
 
 
#ifdef HANDLE_MULTIBYTE
#ifdef HANDLE_MULTIBYTE
 
 
extern int _rl_compare_chars PARAMS((char *, int, mbstate_t *, char *, int, mbstate_t *));
extern int _rl_compare_chars PARAMS((char *, int, mbstate_t *, char *, int, mbstate_t *));
extern int _rl_get_char_len PARAMS((char *, mbstate_t *));
extern int _rl_get_char_len PARAMS((char *, mbstate_t *));
extern int _rl_adjust_point PARAMS((char *, int, mbstate_t *));
extern int _rl_adjust_point PARAMS((char *, int, mbstate_t *));
 
 
extern int _rl_read_mbchar PARAMS((char *, int));
extern int _rl_read_mbchar PARAMS((char *, int));
extern int _rl_read_mbstring PARAMS((int, char *, int));
extern int _rl_read_mbstring PARAMS((int, char *, int));
 
 
extern int _rl_is_mbchar_matched PARAMS((char *, int, int, char *, int));
extern int _rl_is_mbchar_matched PARAMS((char *, int, int, char *, int));
 
 
extern wchar_t _rl_char_value PARAMS((char *, int));
extern wchar_t _rl_char_value PARAMS((char *, int));
extern int _rl_walphabetic PARAMS((wchar_t));
extern int _rl_walphabetic PARAMS((wchar_t));
 
 
#define _rl_to_wupper(wc)       (iswlower (wc) ? towupper (wc) : (wc))
#define _rl_to_wupper(wc)       (iswlower (wc) ? towupper (wc) : (wc))
#define _rl_to_wlower(wc)       (iswupper (wc) ? towlower (wc) : (wc))
#define _rl_to_wlower(wc)       (iswupper (wc) ? towlower (wc) : (wc))
 
 
#define MB_NEXTCHAR(b,s,c,f) \
#define MB_NEXTCHAR(b,s,c,f) \
        ((MB_CUR_MAX > 1 && rl_byte_oriented == 0) \
        ((MB_CUR_MAX > 1 && rl_byte_oriented == 0) \
                ? _rl_find_next_mbchar ((b), (s), (c), (f)) \
                ? _rl_find_next_mbchar ((b), (s), (c), (f)) \
                : ((s) + (c)))
                : ((s) + (c)))
#define MB_PREVCHAR(b,s,f) \
#define MB_PREVCHAR(b,s,f) \
        ((MB_CUR_MAX > 1 && rl_byte_oriented == 0) \
        ((MB_CUR_MAX > 1 && rl_byte_oriented == 0) \
                ? _rl_find_prev_mbchar ((b), (s), (f)) \
                ? _rl_find_prev_mbchar ((b), (s), (f)) \
                : ((s) - 1))
                : ((s) - 1))
 
 
#define MB_INVALIDCH(x)         ((x) == (size_t)-1 || (x) == (size_t)-2)
#define MB_INVALIDCH(x)         ((x) == (size_t)-1 || (x) == (size_t)-2)
#define MB_NULLWCH(x)           ((x) == 0)
#define MB_NULLWCH(x)           ((x) == 0)
 
 
#else /* !HANDLE_MULTIBYTE */
#else /* !HANDLE_MULTIBYTE */
 
 
#undef MB_LEN_MAX
#undef MB_LEN_MAX
#undef MB_CUR_MAX
#undef MB_CUR_MAX
 
 
#define MB_LEN_MAX      1
#define MB_LEN_MAX      1
#define MB_CUR_MAX      1
#define MB_CUR_MAX      1
 
 
#define _rl_find_prev_mbchar(b, i, f)           (((i) == 0) ? (i) : ((i) - 1))
#define _rl_find_prev_mbchar(b, i, f)           (((i) == 0) ? (i) : ((i) - 1))
#define _rl_find_next_mbchar(b, i1, i2, f)      ((i1) + (i2))
#define _rl_find_next_mbchar(b, i1, i2, f)      ((i1) + (i2))
 
 
#define _rl_char_value(buf,ind) ((buf)[(ind)])
#define _rl_char_value(buf,ind) ((buf)[(ind)])
 
 
#define _rl_walphabetic(c)      (rl_alphabetic (c))
#define _rl_walphabetic(c)      (rl_alphabetic (c))
 
 
#define _rl_to_wupper(c)        (_rl_to_upper (c))
#define _rl_to_wupper(c)        (_rl_to_upper (c))
#define _rl_to_wlower(c)        (_rl_to_lower (c))
#define _rl_to_wlower(c)        (_rl_to_lower (c))
 
 
#define MB_NEXTCHAR(b,s,c,f)    ((s) + (c))
#define MB_NEXTCHAR(b,s,c,f)    ((s) + (c))
#define MB_PREVCHAR(b,s,f)      ((s) - 1)
#define MB_PREVCHAR(b,s,f)      ((s) - 1)
 
 
#define MB_INVALIDCH(x)         (0)
#define MB_INVALIDCH(x)         (0)
#define MB_NULLWCH(x)           (0)
#define MB_NULLWCH(x)           (0)
 
 
#endif /* !HANDLE_MULTIBYTE */
#endif /* !HANDLE_MULTIBYTE */
 
 
extern int rl_byte_oriented;
extern int rl_byte_oriented;
 
 
#endif /* _RL_MBUTIL_H_ */
#endif /* _RL_MBUTIL_H_ */
 
 

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