Convert the Big5, EUC, MSKanji and UTF-8 encoding methods to implement
mbrtowc() and wcrtomb() directly. GB18030, GBK and UTF2 are left unconverted; GB18030 will be done eventually, but GBK and UTF2 may just be removed, as they are subsets of GB18030 and UTF-8 respectively.
This commit is contained in:
Tim J. Robbins
parent
fcca8c1dde
commit
02f4f60ad5
Notes:
svn2git
2020-12-20 02:59:44 +00:00
svn path=/head/; revision=121893
@ -1,4 +1,5 @@
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/*-
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* Copyright (c) 2002, 2003 Tim J. Robbins. All rights reserved.
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* Copyright (c) 1993
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* The Regents of the University of California. All rights reserved.
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*
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@ -40,80 +41,76 @@ static char sccsid[] = "@(#)big5.c 8.1 (Berkeley) 6/4/93";
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include <rune.h>
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#include <sys/types.h>
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#include <runetype.h>
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#include <stddef.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <sys/types.h>
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#include <wchar.h>
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rune_t _BIG5_sgetrune(const char *, size_t, char const **);
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int _BIG5_sputrune(rune_t, char *, size_t, char **);
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extern size_t (*__mbrtowc)(wchar_t * __restrict, const char * __restrict,
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size_t, mbstate_t * __restrict);
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extern size_t (*__wcrtomb)(char * __restrict, wchar_t, mbstate_t * __restrict);
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int _BIG5_init(_RuneLocale *);
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size_t _BIG5_mbrtowc(wchar_t * __restrict, const char * __restrict, size_t,
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mbstate_t * __restrict);
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size_t _BIG5_wcrtomb(char * __restrict, wchar_t, mbstate_t * __restrict);
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int
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_BIG5_init(rl)
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_RuneLocale *rl;
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_BIG5_init(_RuneLocale *rl)
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{
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rl->sgetrune = _BIG5_sgetrune;
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rl->sputrune = _BIG5_sputrune;
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__mbrtowc = _BIG5_mbrtowc;
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__wcrtomb = _BIG5_wcrtomb;
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_CurrentRuneLocale = rl;
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__mb_cur_max = 2;
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return (0);
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}
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static inline int
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_big5_check(c)
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u_int c;
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static __inline int
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_big5_check(u_int c)
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{
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c &= 0xff;
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return ((c >= 0xa1 && c <= 0xfe) ? 2 : 1);
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}
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rune_t
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_BIG5_sgetrune(string, n, result)
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const char *string;
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size_t n;
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char const **result;
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size_t
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_BIG5_mbrtowc(wchar_t * __restrict pwc, const char * __restrict s, size_t n,
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mbstate_t * __restrict ps __unused)
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{
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rune_t rune = 0;
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int len;
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wchar_t wc;
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int i, len;
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if (n < 1 || (len = _big5_check(*string)) > n) {
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if (result)
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*result = string;
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return (_INVALID_RUNE);
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}
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while (--len >= 0)
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rune = (rune << 8) | ((u_int)(*string++) & 0xff);
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if (result)
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*result = string;
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return rune;
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if (s == NULL)
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/* Reset to initial shift state (no-op) */
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return (0);
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if (n == 0 || (size_t)(len = _big5_check(*s)) > n)
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/* Incomplete multibyte sequence */
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return ((size_t)-2);
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wc = 0;
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i = len;
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while (i-- > 0)
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wc = (wc << 8) | (unsigned char)*s++;
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if (pwc != NULL)
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*pwc = wc;
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return (wc == L'\0' ? 0 : len);
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}
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int
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_BIG5_sputrune(c, string, n, result)
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rune_t c;
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char *string, **result;
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size_t n;
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size_t
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_BIG5_wcrtomb(char * __restrict s, wchar_t wc,
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mbstate_t * __restrict ps __unused)
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{
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if (c & 0x8000) {
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if (n >= 2) {
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string[0] = (c >> 8) & 0xff;
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string[1] = c & 0xff;
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if (result)
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*result = string + 2;
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return (2);
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}
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if (s == NULL)
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/* Reset to initial shift state (no-op) */
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return (1);
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if (wc & 0x8000) {
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*s++ = (wc >> 8) & 0xff;
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*s = wc & 0xff;
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return (2);
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}
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else {
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if (n >= 1) {
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*string = c & 0xff;
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if (result)
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*result = string + 1;
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return (1);
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}
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}
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if (result)
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*result = string;
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return (0);
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*s = wc & 0xff;
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return (1);
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}
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@ -1,4 +1,5 @@
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/*-
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* Copyright (c) 2002, 2003 Tim J. Robbins. All rights reserved.
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* Copyright (c) 1993
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* The Regents of the University of California. All rights reserved.
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*
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@ -43,32 +44,35 @@ __FBSDID("$FreeBSD$");
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#include <sys/types.h>
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#include <errno.h>
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#include <rune.h>
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#include <runetype.h>
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#include <stddef.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <wchar.h>
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rune_t _EUC_sgetrune(const char *, size_t, char const **);
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int _EUC_sputrune(rune_t, char *, size_t, char **);
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extern size_t (*__mbrtowc)(wchar_t * __restrict, const char * __restrict,
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size_t, mbstate_t * __restrict);
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extern size_t (*__wcrtomb)(char * __restrict, wchar_t, mbstate_t * __restrict);
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int _EUC_init(_RuneLocale *);
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size_t _EUC_mbrtowc(wchar_t * __restrict, const char * __restrict, size_t,
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mbstate_t * __restrict);
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size_t _EUC_wcrtomb(char * __restrict, wchar_t, mbstate_t * __restrict);
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typedef struct {
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int count[4];
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rune_t bits[4];
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rune_t mask;
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wchar_t bits[4];
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wchar_t mask;
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} _EucInfo;
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int
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_EUC_init(rl)
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_RuneLocale *rl;
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_EUC_init(_RuneLocale *rl)
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{
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_EucInfo *ei;
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int x, new__mb_cur_max;
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char *v, *e;
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rl->sgetrune = _EUC_sgetrune;
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rl->sputrune = _EUC_sputrune;
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if (rl->variable == NULL)
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return (EFTYPE);
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@ -108,6 +112,8 @@ _EUC_init(rl)
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rl->variable_len = sizeof(_EucInfo);
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_CurrentRuneLocale = rl;
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__mb_cur_max = new__mb_cur_max;
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__mbrtowc = _EUC_mbrtowc;
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__wcrtomb = _EUC_wcrtomb;
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return (0);
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}
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@ -118,105 +124,85 @@ _EUC_init(rl)
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#define GR_BITS 0x80808080 /* XXX: to be fixed */
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static inline int
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_euc_set(c)
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u_int c;
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static __inline int
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_euc_set(u_int c)
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{
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c &= 0xff;
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return ((c & 0x80) ? c == _SS3 ? 3 : c == _SS2 ? 2 : 1 : 0);
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}
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rune_t
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_EUC_sgetrune(string, n, result)
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const char *string;
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size_t n;
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char const **result;
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{
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rune_t rune = 0;
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int len, set;
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if (n < 1 || (len = CEI->count[set = _euc_set(*string)]) > n) {
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if (result)
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*result = string;
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return (_INVALID_RUNE);
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}
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size_t
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_EUC_mbrtowc(wchar_t * __restrict pwc, const char * __restrict s, size_t n,
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mbstate_t * __restrict ps __unused)
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{
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int len, remain, set;
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wchar_t wc;
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if (s == NULL)
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/* Reset to initial shift state (no-op) */
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return (0);
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if (n == 0 || (size_t)(len = CEI->count[set = _euc_set(*s)]) > n)
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/* Incomplete multibyte sequence */
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return ((size_t)-2);
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wc = 0;
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remain = len;
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switch (set) {
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case 3:
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case 2:
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--len;
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++string;
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--remain;
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++s;
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/* FALLTHROUGH */
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case 1:
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case 0:
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while (len-- > 0)
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rune = (rune << 8) | ((u_int)(*string++) & 0xff);
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while (remain-- > 0)
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wc = (wc << 8) | (unsigned char)*s++;
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break;
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}
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if (result)
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*result = string;
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return ((rune & ~CEI->mask) | CEI->bits[set]);
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wc = (wc & ~CEI->mask) | CEI->bits[set];
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if (pwc != NULL)
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*pwc = wc;
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return (wc == L'\0' ? 0 : len);
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}
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int
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_EUC_sputrune(c, string, n, result)
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rune_t c;
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char *string, **result;
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size_t n;
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size_t
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_EUC_wcrtomb(char * __restrict s, wchar_t wc,
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mbstate_t * __restrict ps __unused)
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{
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rune_t m = c & CEI->mask;
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rune_t nm = c & ~m;
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wchar_t m, nm;
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int i, len;
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if (s == NULL)
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/* Reset to initial shift state (no-op) */
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return (1);
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m = wc & CEI->mask;
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nm = wc & ~m;
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if (m == CEI->bits[1]) {
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CodeSet1:
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/* Codeset 1: The first byte must have 0x80 in it. */
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i = len = CEI->count[1];
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if (n >= len) {
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if (result)
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*result = string + len;
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while (i-- > 0)
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*string++ = (nm >> (i << 3)) | 0x80;
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} else
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if (result)
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*result = (char *) 0;
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} else {
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if (m == CEI->bits[0]) {
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i = len = CEI->count[0];
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if (n < len) {
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if (result)
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*result = NULL;
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return (len);
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}
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} else
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if (m == CEI->bits[2]) {
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i = len = CEI->count[2];
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if (n < len) {
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if (result)
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*result = NULL;
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return (len);
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}
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*string++ = _SS2;
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--i;
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/* SS2 designates G2 into GR */
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nm |= GR_BITS;
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} else
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if (m == CEI->bits[3]) {
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i = len = CEI->count[3];
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if (n < len) {
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if (result)
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*result = NULL;
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return (len);
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}
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*string++ = _SS3;
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--i;
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/* SS3 designates G3 into GR */
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nm |= GR_BITS;
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} else
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goto CodeSet1; /* Bletch */
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while (i-- > 0)
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*string++ = (nm >> (i << 3)) & 0xff;
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if (result)
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*result = string;
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*s++ = (nm >> (i << 3)) | 0x80;
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} else {
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if (m == CEI->bits[0])
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i = len = CEI->count[0];
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else if (m == CEI->bits[2]) {
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i = len = CEI->count[2];
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*s++ = _SS2;
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--i;
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/* SS2 designates G2 into GR */
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nm |= GR_BITS;
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} else if (m == CEI->bits[3]) {
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i = len = CEI->count[3];
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*s++ = _SS3;
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--i;
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/* SS3 designates G3 into GR */
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nm |= GR_BITS;
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} else
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goto CodeSet1; /* Bletch */
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while (i-- > 0)
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*s++ = (nm >> (i << 3)) & 0xff;
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}
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return (len);
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}
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@ -1,4 +1,5 @@
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/*
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* Copyright (c) 2002, 2003 Tim J. Robbins. All rights reserved.
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* ja_JP.SJIS locale table for BSD4.4/rune
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* version 1.0
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* (C) Sin'ichiro MIYATANI / Phase One, Inc
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@ -38,74 +39,71 @@ static char sccsid[] = "@(#)mskanji.c 1.0 (Phase One) 5/5/95";
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__FBSDID("$FreeBSD$");
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#include <sys/types.h>
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#include <rune.h>
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#include <runetype.h>
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#include <stddef.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <wchar.h>
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rune_t _MSKanji_sgetrune(const char *, size_t, char const **);
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int _MSKanji_sputrune(rune_t, char *, size_t, char **);
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extern size_t (*__mbrtowc)(wchar_t * __restrict, const char * __restrict,
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size_t, mbstate_t * __restrict);
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extern size_t (*__wcrtomb)(char * __restrict, wchar_t, mbstate_t * __restrict);
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int _MSKanji_init(_RuneLocale *);
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size_t _MSKanji_mbrtowc(wchar_t * __restrict, const char * __restrict, size_t,
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mbstate_t * __restrict);
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size_t _MSKanji_wcrtomb(char * __restrict, wchar_t, mbstate_t * __restrict);
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int
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_MSKanji_init(rl)
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_RuneLocale *rl;
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_MSKanji_init(_RuneLocale *rl)
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{
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rl->sgetrune = _MSKanji_sgetrune;
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rl->sputrune = _MSKanji_sputrune;
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__mbrtowc = _MSKanji_mbrtowc;
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__wcrtomb = _MSKanji_wcrtomb;
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_CurrentRuneLocale = rl;
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__mb_cur_max = 2;
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return (0);
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}
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rune_t
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_MSKanji_sgetrune(string, n, result)
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const char *string;
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size_t n;
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char const **result;
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size_t
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_MSKanji_mbrtowc(wchar_t * __restrict pwc, const char * __restrict s, size_t n,
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mbstate_t * __restrict ps __unused)
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{
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rune_t rune = 0;
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wchar_t wc;
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int len;
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|
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if (n < 1) {
|
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if (result != NULL)
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*result = string;
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return (_INVALID_RUNE);
|
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if (s == NULL)
|
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/* Reset to initial shift state (no-op) */
|
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return (0);
|
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if (n == 0)
|
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/* Incomplete multibyte sequence */
|
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return ((size_t)-2);
|
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len = 1;
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wc = *s++ & 0xff;
|
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if ((wc > 0x80 && wc < 0xa0) || (wc >= 0xe0 && wc < 0xfd)) {
|
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if (n < 2)
|
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/* Incomplete multibyte sequence */
|
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return ((size_t)-2);
|
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wc = (wc << 8) | (*s++ & 0xff);
|
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len = 2;
|
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}
|
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|
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rune = *string++ & 0xff;
|
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if ((rune > 0x80 && rune < 0xa0) ||
|
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(rune >= 0xe0 && rune < 0xfd)) {
|
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if (n < 2) {
|
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rune = _INVALID_RUNE;
|
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--string;
|
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} else
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rune = (rune << 8) | (*string++ & 0xff);
|
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}
|
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if (result != NULL)
|
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*result = string;
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|
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return (rune);
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if (pwc != NULL)
|
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*pwc = wc;
|
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return (wc == L'\0' ? 0 : len);
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}
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int
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_MSKanji_sputrune(c, string, n, result)
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rune_t c;
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char *string, **result;
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size_t n;
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size_t
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_MSKanji_wcrtomb(char * __restrict s, wchar_t wc,
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mbstate_t * __restrict ps __unused)
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{
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int len, i;
|
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|
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len = (c > 0x100) ? 2 : 1;
|
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if (n < len) {
|
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if (result != NULL)
|
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*result = NULL;
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} else {
|
||||
if (result != NULL)
|
||||
*result = string + len;
|
||||
for (i = len; i-- > 0; )
|
||||
*string++ = c >> (i << 3);
|
||||
}
|
||||
if (s == NULL)
|
||||
/* Reset to initial shift state (no-op) */
|
||||
return (1);
|
||||
|
||||
len = (wc > 0x100) ? 2 : 1;
|
||||
for (i = len; i-- > 0; )
|
||||
*s++ = wc >> (i << 3);
|
||||
return (len);
|
||||
}
|
||||
|
||||
@ -1,5 +1,5 @@
|
||||
/*-
|
||||
* Copyright (c) 2002 Tim J. Robbins
|
||||
* Copyright (c) 2002, 2003 Tim J. Robbins
|
||||
* All rights reserved.
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
@ -27,37 +27,46 @@
|
||||
#include <sys/cdefs.h>
|
||||
__FBSDID("$FreeBSD$");
|
||||
|
||||
#include <rune.h>
|
||||
#include <errno.h>
|
||||
#include <runetype.h>
|
||||
#include <stddef.h>
|
||||
#include <stdio.h>
|
||||
#include <stdlib.h>
|
||||
#include <wchar.h>
|
||||
|
||||
rune_t _UTF8_sgetrune(const char *, size_t, char const **);
|
||||
int _UTF8_sputrune(rune_t, char *, size_t, char **);
|
||||
extern size_t (*__mbrtowc)(wchar_t * __restrict, const char * __restrict,
|
||||
size_t, mbstate_t * __restrict);
|
||||
extern size_t (*__wcrtomb)(char * __restrict, wchar_t, mbstate_t * __restrict);
|
||||
|
||||
size_t _UTF8_mbrtowc(wchar_t * __restrict, const char * __restrict, size_t,
|
||||
mbstate_t * __restrict);
|
||||
size_t _UTF8_wcrtomb(char * __restrict, wchar_t, mbstate_t * __restrict);
|
||||
|
||||
int
|
||||
_UTF8_init(_RuneLocale *rl)
|
||||
{
|
||||
|
||||
rl->sgetrune = _UTF8_sgetrune;
|
||||
rl->sputrune = _UTF8_sputrune;
|
||||
__mbrtowc = _UTF8_mbrtowc;
|
||||
__wcrtomb = _UTF8_wcrtomb;
|
||||
_CurrentRuneLocale = rl;
|
||||
__mb_cur_max = 6;
|
||||
|
||||
return (0);
|
||||
}
|
||||
|
||||
rune_t
|
||||
_UTF8_sgetrune(const char *string, size_t n, const char **result)
|
||||
size_t
|
||||
_UTF8_mbrtowc(wchar_t * __restrict pwc, const char * __restrict s, size_t n,
|
||||
mbstate_t * __restrict ps __unused)
|
||||
{
|
||||
int ch, len, mask;
|
||||
rune_t lbound, wch;
|
||||
int ch, i, len, mask;
|
||||
wchar_t lbound, wch;
|
||||
|
||||
if (n < 1) {
|
||||
if (result != NULL)
|
||||
*result = string;
|
||||
return (_INVALID_RUNE);
|
||||
}
|
||||
if (s == NULL)
|
||||
/* Reset to initial shift state (no-op) */
|
||||
return (0);
|
||||
if (n == 0)
|
||||
/* Incomplete multibyte sequence */
|
||||
return ((size_t)-2);
|
||||
|
||||
/*
|
||||
* Determine the number of octets that make up this character from
|
||||
@ -70,7 +79,7 @@ _UTF8_sgetrune(const char *string, size_t n, const char **result)
|
||||
* character. This enforces a 1-to-1 mapping between character
|
||||
* codes and their multibyte representations.
|
||||
*/
|
||||
ch = (unsigned char)*string;
|
||||
ch = (unsigned char)*s;
|
||||
if ((ch & 0x80) == 0) {
|
||||
mask = 0x7f;
|
||||
len = 1;
|
||||
@ -99,106 +108,95 @@ _UTF8_sgetrune(const char *string, size_t n, const char **result)
|
||||
/*
|
||||
* Malformed input; input is not UTF-8.
|
||||
*/
|
||||
if (result != NULL)
|
||||
*result = string + 1;
|
||||
return (_INVALID_RUNE);
|
||||
errno = EILSEQ;
|
||||
return ((size_t)-1);
|
||||
}
|
||||
|
||||
if (n < len) {
|
||||
/*
|
||||
* Truncated or partial input.
|
||||
*/
|
||||
if (result != NULL)
|
||||
*result = string;
|
||||
return (_INVALID_RUNE);
|
||||
}
|
||||
if (n < (size_t)len)
|
||||
/* Incomplete multibyte sequence */
|
||||
return ((size_t)-2);
|
||||
|
||||
/*
|
||||
* Decode the octet sequence representing the character in chunks
|
||||
* of 6 bits, most significant first.
|
||||
*/
|
||||
wch = (unsigned char)*string++ & mask;
|
||||
while (--len != 0) {
|
||||
if ((*string & 0xc0) != 0x80) {
|
||||
wch = (unsigned char)*s++ & mask;
|
||||
i = len;
|
||||
while (--i != 0) {
|
||||
if ((*s & 0xc0) != 0x80) {
|
||||
/*
|
||||
* Malformed input; bad characters in the middle
|
||||
* of a character.
|
||||
*/
|
||||
wch = _INVALID_RUNE;
|
||||
if (result != NULL)
|
||||
*result = string + 1;
|
||||
return (_INVALID_RUNE);
|
||||
errno = EILSEQ;
|
||||
return ((size_t)-1);
|
||||
}
|
||||
wch <<= 6;
|
||||
wch |= *string++ & 0x3f;
|
||||
wch |= *s++ & 0x3f;
|
||||
}
|
||||
if (wch != _INVALID_RUNE && wch < lbound)
|
||||
if (wch < lbound) {
|
||||
/*
|
||||
* Malformed input; redundant encoding.
|
||||
*/
|
||||
wch = _INVALID_RUNE;
|
||||
if (result != NULL)
|
||||
*result = string;
|
||||
return (wch);
|
||||
errno = EILSEQ;
|
||||
return ((size_t)-1);
|
||||
}
|
||||
if (pwc != NULL)
|
||||
*pwc = wch;
|
||||
return (wch == L'\0' ? 0 : i);
|
||||
}
|
||||
|
||||
int
|
||||
_UTF8_sputrune(rune_t c, char *string, size_t n, char **result)
|
||||
size_t
|
||||
_UTF8_wcrtomb(char * __restrict s, wchar_t wc,
|
||||
mbstate_t * __restrict ps __unused)
|
||||
{
|
||||
unsigned char lead;
|
||||
int i, len;
|
||||
|
||||
if (s == NULL)
|
||||
/* Reset to initial shift state (no-op) */
|
||||
return (1);
|
||||
|
||||
/*
|
||||
* Determine the number of octets needed to represent this character.
|
||||
* We always output the shortest sequence possible. Also specify the
|
||||
* first few bits of the first octet, which contains the information
|
||||
* about the sequence length.
|
||||
*/
|
||||
if ((c & ~0x7f) == 0) {
|
||||
if ((wc & ~0x7f) == 0) {
|
||||
lead = 0;
|
||||
len = 1;
|
||||
} else if ((c & ~0x7ff) == 0) {
|
||||
} else if ((wc & ~0x7ff) == 0) {
|
||||
lead = 0xc0;
|
||||
len = 2;
|
||||
} else if ((c & ~0xffff) == 0) {
|
||||
} else if ((wc & ~0xffff) == 0) {
|
||||
lead = 0xe0;
|
||||
len = 3;
|
||||
} else if ((c & ~0x1fffff) == 0) {
|
||||
} else if ((wc & ~0x1fffff) == 0) {
|
||||
lead = 0xf0;
|
||||
len = 4;
|
||||
} else if ((c & ~0x3ffffff) == 0) {
|
||||
} else if ((wc & ~0x3ffffff) == 0) {
|
||||
lead = 0xf8;
|
||||
len = 5;
|
||||
} else if ((c & ~0x7fffffff) == 0) {
|
||||
} else if ((wc & ~0x7fffffff) == 0) {
|
||||
lead = 0xfc;
|
||||
len = 6;
|
||||
} else {
|
||||
/*
|
||||
* Wide character code is out of range.
|
||||
*/
|
||||
if (result != NULL)
|
||||
*result = NULL;
|
||||
return (0);
|
||||
errno = EILSEQ;
|
||||
return ((size_t)-1);
|
||||
}
|
||||
|
||||
if (n < len) {
|
||||
if (result != NULL)
|
||||
*result = NULL;
|
||||
} else {
|
||||
/*
|
||||
* Output the octets representing the character in chunks
|
||||
* of 6 bits, least significant last. The first octet is
|
||||
* a special case because it contains the sequence length
|
||||
* information.
|
||||
*/
|
||||
for (i = len - 1; i > 0; i--) {
|
||||
string[i] = (c & 0x3f) | 0x80;
|
||||
c >>= 6;
|
||||
}
|
||||
*string = (c & 0xff) | lead;
|
||||
if (result != NULL)
|
||||
*result = string + len;
|
||||
/*
|
||||
* Output the octets representing the character in chunks
|
||||
* of 6 bits, least significant last. The first octet is
|
||||
* a special case because it contains the sequence length
|
||||
* information.
|
||||
*/
|
||||
for (i = len - 1; i > 0; i--) {
|
||||
s[i] = (wc & 0x3f) | 0x80;
|
||||
wc >>= 6;
|
||||
}
|
||||
*s = (wc & 0xff) | lead;
|
||||
|
||||
return (len);
|
||||
}
|
||||
|
||||
Loading…
Reference in New Issue
Block a user