projects / deliverable / binutils-gdb.git / blame
| Commit | Line | Data |
|---|---|---|
| 9255ee31 EZ |
1 | /* rlmbutil.h -- utility functions for multibyte characters. */ |
| 2 | ||
| 3 | /* Copyright (C) 2001 Free Software Foundation, Inc. | |
| 4 | ||
| 5 | This file is part of the GNU Readline Library, a library for | |
| 6 | reading lines of text with interactive input and history editing. | |
| 7 | ||
| 8 | The GNU Readline Library is free software; you can redistribute it | |
| 9 | and/or modify it under the terms of the GNU General Public License | |
| 10 | as published by the Free Software Foundation; either version 2, or | |
| 11 | (at your option) any later version. | |
| 12 | ||
| 13 | The GNU Readline Library is distributed in the hope that it will be | |
| 14 | useful, but WITHOUT ANY WARRANTY; without even the implied warranty | |
| 15 | of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| 16 | GNU General Public License for more details. | |
| 17 | ||
| 18 | The GNU General Public License is often shipped with GNU software, and | |
| 19 | is generally kept in a file called COPYING or LICENSE. If you do not | |
| 20 | have a copy of the license, write to the Free Software Foundation, | |
| 21 | 59 Temple Place, Suite 330, Boston, MA 02111 USA. */ | |
| 22 | ||
| 23 | #if !defined (_RL_MBUTIL_H_) | |
| 24 | #define _RL_MBUTIL_H_ | |
| 25 | ||
| 26 | #include "rlstdc.h" | |
| 27 | ||
| 28 | /************************************************/ | |
| 29 | /* check multibyte capability for I18N code */ | |
| 30 | /************************************************/ | |
| 31 | ||
| 32 | /* For platforms which support the ISO C amendement 1 functionality we | |
| 33 | support user defined character classes. */ | |
| 34 | /* Solaris 2.5 has a bug: <wchar.h> must be included before <wctype.h>. */ | |
| 35 | #if defined (HAVE_WCTYPE_H) && defined (HAVE_WCHAR_H) | |
| 36 | # include <wchar.h> | |
| 37 | # include <wctype.h> | |
| 38 | # if defined (HAVE_MBSRTOWCS) /* system is supposed to support XPG5 */ | |
| 39 | # define HANDLE_MULTIBYTE 1 | |
| 40 | # endif | |
| 41 | #endif | |
| 42 | ||
| 43 | /* Some systems, like BeOS, have multibyte encodings but lack mbstate_t. */ | |
| 44 | #if HANDLE_MULTIBYTE && !defined (HAVE_MBSTATE_T) | |
| 45 | # define wcsrtombs(dest, src, len, ps) (wcsrtombs) (dest, src, len, 0) | |
| 46 | # define mbsrtowcs(dest, src, len, ps) (mbsrtowcs) (dest, src, len, 0) | |
| 47 | # define wcrtomb(s, wc, ps) (wcrtomb) (s, wc, 0) | |
| 48 | # define mbrtowc(pwc, s, n, ps) (mbrtowc) (pwc, s, n, 0) | |
| 49 | # define mbrlen(s, n, ps) (mbrlen) (s, n, 0) | |
| 50 | # define mbstate_t int | |
| 51 | #endif | |
| 52 | ||
| 53 | /* Make sure MB_LEN_MAX is at least 16 on systems that claim to be able to | |
| 54 | handle multibyte chars (some systems define MB_LEN_MAX as 1) */ | |
| 55 | #ifdef HANDLE_MULTIBYTE | |
| 56 | # include <limits.h> | |
| 57 | # if defined(MB_LEN_MAX) && (MB_LEN_MAX < 16) | |
| 58 | # undef MB_LEN_MAX | |
| 59 | # endif | |
| 60 | # if !defined (MB_LEN_MAX) | |
| 61 | # define MB_LEN_MAX 16 | |
| 62 | # endif | |
| 63 | #endif | |
| 64 | ||
| 65 | /************************************************/ | |
| 66 | /* end of multibyte capability checks for I18N */ | |
| 67 | /************************************************/ | |
| 68 | ||
| 69 | /* | |
| 70 | * Flags for _rl_find_prev_mbchar and _rl_find_next_mbchar: | |
| 71 | * | |
| 72 | * MB_FIND_ANY find any multibyte character | |
| 73 | * MB_FIND_NONZERO find a non-zero-width multibyte character | |
| 74 | */ | |
| 75 | ||
| 76 | #define MB_FIND_ANY 0x00 | |
| 77 | #define MB_FIND_NONZERO 0x01 | |
| 78 | ||
| 79 | extern int _rl_find_prev_mbchar PARAMS((char *, int, int)); | |
| 80 | extern int _rl_find_next_mbchar PARAMS((char *, int, int, int)); | |
| 81 | ||
| 82 | #ifdef HANDLE_MULTIBYTE | |
| 83 | ||
| 84 | extern int _rl_compare_chars PARAMS((char *, int, mbstate_t *, char *, int, mbstate_t *)); | |
| 85 | extern int _rl_get_char_len PARAMS((char *, mbstate_t *)); | |
| 86 | extern int _rl_adjust_point PARAMS((char *, int, mbstate_t *)); | |
| 87 | ||
| 88 | extern int _rl_read_mbchar PARAMS((char *, int)); | |
| 89 | extern int _rl_read_mbstring PARAMS((int, char *, int)); | |
| 90 | ||
| 91 | extern int _rl_is_mbchar_matched PARAMS((char *, int, int, char *, int)); | |
| 92 | ||
| 93 | #else /* !HANDLE_MULTIBYTE */ | |
| 94 | ||
| 95 | #undef MB_LEN_MAX | |
| 96 | #undef MB_CUR_MAX | |
| 97 | ||
| 98 | #define MB_LEN_MAX 1 | |
| 99 | #define MB_CUR_MAX 1 | |
| 100 | ||
| 101 | #define _rl_find_prev_mbchar(b, i, f) (((i) == 0) ? (i) : ((i) - 1)) | |
| 102 | #define _rl_find_next_mbchar(b, i1, i2, f) ((i1) + (i2)) | |
| 103 | ||
| 104 | #endif /* !HANDLE_MULTIBYTE */ | |
| 105 | ||
| 106 | extern int rl_byte_oriented; | |
| 107 | ||
| 108 | #endif /* _RL_MBUTIL_H_ */ |