diff options
Diffstat (limited to 'libX11/modules/lc/xlocale/lcEuc.c')
| -rw-r--r-- | libX11/modules/lc/xlocale/lcEuc.c | 1537 |
1 files changed, 0 insertions, 1537 deletions
diff --git a/libX11/modules/lc/xlocale/lcEuc.c b/libX11/modules/lc/xlocale/lcEuc.c deleted file mode 100644 index 5b171a9f3..000000000 --- a/libX11/modules/lc/xlocale/lcEuc.c +++ /dev/null @@ -1,1537 +0,0 @@ -/****************************************************************** - - Copyright 1992, 1993 by FUJITSU LIMITED - Copyright 1993 by Fujitsu Open Systems Solutions, Inc. - -Permission to use, copy, modify, distribute and sell this software -and its documentation for any purpose is hereby granted without fee, -provided that the above copyright notice appear in all copies and -that both that copyright notice and this permission notice appear -in supporting documentation, and that the name of FUJITSU LIMITED and -Fujitsu Open Systems Solutions, Inc. not be used in advertising or -publicity pertaining to distribution of the software without specific, -written prior permission. -FUJITSU LIMITED and Fujitsu Open Systems Solutions, Inc. makes no -representations about the suitability of this software for any purpose. -It is provided "as is" without express or implied warranty. - -FUJITSU LIMITED AND FUJITSU OPEN SYSTEMS SOLUTIONS, INC. DISCLAIMS ALL -WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES -OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL FUJITSU OPEN SYSTEMS -SOLUTIONS, INC. AND FUJITSU LIMITED BE LIABLE FOR ANY SPECIAL, INDIRECT -OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF -USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER -TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE -OF THIS SOFTWARE. - - Authors: Shigeru Yamada (yamada@ossi.com) - Jeffrey Bloomfield (jeffb@ossi.com) - Yoshiyuki Segawa (segawa@ossi.com) - -*****************************************************************/ - -/* - * An EUC locale. - * Supports: all locales with codeset eucJP, eucKR, eucCN, eucTW. - * How: Provides converters for euc*. - * Platforms: Only those defining X_LOCALE (only Lynx, Linux-libc5, OS/2). - */ - -#ifdef X_LOCALE - -#ifdef HAVE_CONFIG_H -#include <config.h> -#endif -#include "Xlibint.h" -#include "XlcGeneric.h" - -#include <ctype.h> -#ifdef WIN32 -#define isascii __isascii -#endif - -#define CS0 codesets[0] /* Codeset 0 - 7-bit ASCII */ -#define CS1 codesets[1] /* Codeset 1 - Kanji */ -#define CS2 codesets[2] /* Codeset 2 - Half-Kana */ -#define CS3 codesets[3] /* Codeset 3 - User defined */ - -#define SS2 0x8e /* Single-shift char: CS2 */ -#define SS3 0x8f /* Single-shift char: CS3 */ - -#define ASCII_CODESET 0 -#define KANJI_CODESET 1 -#define KANA_CODESET 2 -#define USERDEF_CODESET 3 -#define MAX_CODESETS - -#define GR 0x80 /* begins right-side (non-ascii) region */ -#define GL 0x7f /* ends left-side (ascii) region */ - -#define isleftside(c) (((c) & GR) ? 0 : 1) -#define isrightside(c) (!isleftside(c)) - -#define BIT8OFF(c) ((c) & GL) -#define BIT8ON(c) ((c) | GR) - -typedef unsigned char Uchar; -typedef unsigned long Ulong; -typedef unsigned int Uint; - -static CodeSet GetCodeSetFromCharSet (XLCd lcd, XlcCharSet charset); -static CodeSet wc_codeset (XLCd lcd, wchar_t wch); - -#define BADCHAR(min_ch, c) (BIT8OFF(c) < (char)min_ch && BIT8OFF(c) != 0x0 && \ - BIT8OFF(c) != '\t' && BIT8OFF(c) != '\n' && \ - BIT8OFF(c) != 0x1b) - -/* - * Notes: - * 1. Defining FORCE_INDIRECT_CONVERTER (see _XlcEucLoader()) - * forces indirect (charset) conversions (e.g. wcstocs()<->cstombs()). - * 2. Using direct converters (e.g. mbstowcs()) decreases conversion - * times by 20-40% (depends on specific converter used). - */ - -static int -euc_mbstowcs( - XlcConv conv, - XPointer *from, - int *from_left, - XPointer *to, - int *to_left, - XPointer *args, - int num_args) -{ - XLCd lcd = (XLCd)conv->state; - - Uchar ch; - int chr_len = 0; - int sshift = False; - int shift_mult = 0; - Uint chrcode; - - Uint wc_encode = 0; - Uint wc_tmp = 0; - - int cs0flg = False; - int cs1flg = False; - int length = 0; - int unconv_num = 0; - - Bool new_char; - - const char *inbufptr = *from; - wchar_t *outbufptr = (wchar_t *) *to; - - CodeSet *codesets = XLC_GENERIC(lcd, codeset_list); - int codeset_num = XLC_GENERIC(lcd, codeset_num); - Ulong wc_shift = XLC_GENERIC(lcd, wc_shift_bits); - - for (new_char = True; *from_left > 0 && *to_left > 0;) { - - ch = *inbufptr++; - - if (isleftside(ch)) { /* CS0 */ - if (ASCII_CODESET >= codeset_num) { - unconv_num++; - (*from_left)--; - continue; - } - if( cs0flg == True) { - new_char = True; - cs0flg = False; - } - length = CS0->length; - *outbufptr++ = (wchar_t)ch; - (*from_left)--; - (*to_left)--; - continue; - } - else if (ch == SS2) { /* CS2 */ - if (KANA_CODESET >= codeset_num) { - unconv_num++; - (*from_left)--; - continue; - } - if (sshift == True || cs1flg == True) { - cs1flg = False; - unconv_num++; - continue; - } - length = CS2->length; - wc_encode = CS2->wc_encoding; - chrcode = 0; - sshift = True; - cs0flg = True; - (*from_left)--; - continue; - } - else if (ch == SS3) { /* CS3 */ - if (USERDEF_CODESET >= codeset_num) { - unconv_num++; - (*from_left)--; - continue; - } - if (sshift == True || cs1flg == True) { - cs1flg = False; - unconv_num++; - continue; - } - length = CS3->length; - if (*from_left < 1 ) - unconv_num++; - wc_encode = CS3->wc_encoding; - chrcode = 0; - sshift = True; - cs0flg = True; - (*from_left)--; - continue; - - } else { /* CS1 */ - if (KANJI_CODESET >= codeset_num) { - unconv_num++; - (*from_left)--; - continue; - } - if (sshift == False) { - length = CS1->length; - if (*from_left < 1) - unconv_num++; - wc_encode = CS1->wc_encoding; - } - chrcode = BIT8OFF(ch); - cs0flg = True; - cs1flg = True; - (*from_left)--; - } - - if (new_char) { /* begin new character */ - chr_len = length; - shift_mult = length - 1; - new_char = False; - } - - chrcode <<= (wc_shift * shift_mult); - shift_mult--; - wc_tmp |= chrcode; - - if (--chr_len == 0) { - wc_tmp |= wc_encode; - *outbufptr++ = wc_tmp; - (*to_left)--; - - new_char = True; - sshift = False; - cs0flg = False; - cs1flg = False; - wc_tmp = (Uint)0; - } - - } /* end for */ - - *to = (XPointer)outbufptr; - - if (cs0flg == True || cs1flg == True) /* error check on last char */ - unconv_num++; - - return unconv_num; -} - - -static int -euc_wcstombs( - XlcConv conv, - XPointer *from, - int *from_left, - XPointer *to, - int *to_left, - XPointer *args, - int num_args) -{ - const wchar_t *inbufptr = (const wchar_t *) *from; - XPointer outbufptr = *to; - wchar_t wch; - int length; - Uchar tmp; - int unconv_num = 0; - - XLCd lcd = (XLCd)conv->state; - CodeSet codeset; - Ulong wc_shift = XLC_GENERIC(lcd, wc_shift_bits); - - for (; *from_left > 0 && *to_left > 0; (*from_left)-- ) { - - wch = *inbufptr++; - - if (!(codeset = wc_codeset(lcd, wch))) { - unconv_num++; - (*from_left)--; - continue; - } - - length = codeset->length; - wch ^= (wchar_t)codeset->wc_encoding; - - if (codeset->parse_info) { /* put out SS2 or SS3 */ - if (*to_left < length + 1) { - unconv_num++; - break; - } - *outbufptr++ = *codeset->parse_info->encoding; - (*to_left)--; - } else { - if (*to_left < length) { - unconv_num++; - break; - } - } - - do { - length--; - tmp = (wch>>(wchar_t)(length * wc_shift)); - - if (codeset->side == XlcGR) - tmp = BIT8ON(tmp); - - *outbufptr++ = (Uchar)tmp; - (*to_left)--; - } while (length); - } - - *to = (XPointer)outbufptr; - - return unconv_num; -} - - -static int -euc_mbtocs( - XlcConv conv, - XPointer *from, - int *from_left, - XPointer *to, - int *to_left, - XPointer *args, - int num_args) -{ - XLCd lcd = (XLCd)conv->state; - XlcCharSet charset; - CodeSet *codesets = XLC_GENERIC(lcd, codeset_list); - int codeset_num = XLC_GENERIC(lcd, codeset_num); - int length; - int unconv_num = 0; - int min_ch = 0; - const char *src = *from; - char *dst = *to; - - if (isleftside(*src)) { /* 7-bit (CS0) */ - if (ASCII_CODESET >= codeset_num) - return -1; - charset = *CS0->charset_list; - } - else if ((Uchar)*src == SS2) { /* half-kana (CS2) */ - if (KANA_CODESET >= codeset_num) - return -1; - charset = *CS2->charset_list; - src++; - (*from_left)--; - } - else if ((Uchar)*src == SS3) { /* user-def */ - if (USERDEF_CODESET >= codeset_num) - return -1; - charset = *CS3->charset_list; - src++; - (*from_left)--; - } - else { /* Kanji (CS1) */ - if (KANJI_CODESET >= codeset_num) - return -1; - charset = *CS1->charset_list; - } - - if(*from_left < charset->char_size || *to_left < charset->char_size) - return -1; - - min_ch = 0x20; - if (charset->set_size == 94) - if (charset->char_size > 1 || charset->side == XlcGR) - min_ch = 0x21; - - length = charset->char_size; - do { - if(BADCHAR(min_ch, *src)) { - unconv_num++; - src++; - break; - } - switch (charset->side) { - case XlcGL: - *dst++ = BIT8OFF(*src++); - break; - case XlcGR: - *dst++ = BIT8ON(*src++); - break; - default: - *dst++ = *src++; - break; - } - } while (--length); - - *to = dst; - *from = (XPointer) src; - *from_left -= charset->char_size; - *to_left -= charset->char_size - length; - - if (num_args > 0) - *((XlcCharSet *) args[0]) = charset; - - return unconv_num; -} - - -static int -euc_mbstocs( - XlcConv conv, - XPointer *from, - int *from_left, - XPointer *to, - int *to_left, - XPointer *args, - int num_args) -{ - const char *tmp_from; - char *tmp_to; - int tmp_from_left, tmp_to_left; - XlcCharSet charset, tmp_charset; - XPointer tmp_args[1]; - int unconv_num = 0, ret; - -/* Determine the charset of the segment and convert one characater: */ - - tmp_args[0] = (XPointer) &charset; /* charset from euc_mbtocs() */ - while - ((ret = euc_mbtocs(conv, from, from_left, to, to_left, tmp_args, 1)) > 0) - unconv_num += ret; - if ( ret < 0 ) - return ret; - - tmp_from = *from; - tmp_from_left = *from_left; - tmp_to_left = *to_left; - tmp_to = *to; - -/* Convert remainder of the segment: */ - - tmp_args[0] = (XPointer) &tmp_charset; - while( (ret = euc_mbtocs(conv, (XPointer *) &tmp_from, &tmp_from_left, - (XPointer *) &tmp_to, &tmp_to_left, tmp_args, 1)) >= 0 ) { - - if (ret > 0) { - unconv_num += ret; - continue; - } - - if (tmp_charset != charset) /* quit on end of segment */ - break; - - *from = (XPointer) tmp_from; - *from_left = tmp_from_left; - *to = (XPointer) tmp_to; - *to_left = tmp_to_left; - } - - if (num_args > 0) - *((XlcCharSet *) args[0]) = charset; - - return unconv_num; -} - - -static int -euc_wcstocs( - XlcConv conv, - XPointer *from, - int *from_left, - XPointer *to, - int *to_left, - XPointer *args, - int num_args) -{ - XLCd lcd = (XLCd)conv->state; - const wchar_t *wcptr = (const wchar_t *) *from; - char *bufptr = (char *) *to; - wchar_t wch; - char *tmpptr; - int length; - CodeSet codeset; - Ulong wc_encoding; - int wcstr_len = *from_left, buf_len = *to_left; - - if (!(codeset = wc_codeset(lcd, *wcptr))) - return -1; - - wc_encoding = codeset->wc_encoding; - - if (wcstr_len < buf_len / codeset->length) - buf_len = wcstr_len * codeset->length; - - for ( ; wcstr_len > 0 && buf_len > 0; wcptr++, wcstr_len--) { - wch = *wcptr; - - if ((wch & XLC_GENERIC(lcd, wc_encode_mask)) != wc_encoding) - break; - - length = codeset->length; - - buf_len -= length; - bufptr += length; - tmpptr = bufptr - 1; - - while (length--) { - *tmpptr-- = codeset->length == 1 && codeset->side == XlcGR ? - BIT8ON(wch) : BIT8OFF(wch); - wch >>= (wchar_t)XLC_GENERIC(lcd, wc_shift_bits); - } - } - - if (num_args > 0) - *((XlcCharSet *) args[0]) = *codeset->charset_list; - - *from_left -= wcptr - (wchar_t *) *from; - *from = (XPointer) wcptr; - - *to_left -= bufptr - *to; - *to = bufptr; - - return 0; -} - - -static int -euc_cstombs( - XlcConv conv, - XPointer *from, - int *from_left, - XPointer *to, - int *to_left, - XPointer *args, - int num_args) -{ - XLCd lcd = (XLCd)conv->state; - const char *csptr = *from; - char *bufptr = *to; - int csstr_len = *from_left; - int buf_len = *to_left; - int length; - CodeSet codeset; - int cvt_length; - - if (num_args < 1) - return -1; - - if (!(codeset = GetCodeSetFromCharSet(lcd, (XlcCharSet) args[0]))) - return -1; - - cvt_length = 0; - csstr_len /= codeset->length; - buf_len /= codeset->length; - - if (codeset->parse_info) - csstr_len *= 2; - - if (csstr_len < buf_len) - buf_len = csstr_len; - - cvt_length += buf_len * codeset->length; - - if (bufptr) { - while (buf_len--) { - if (codeset->parse_info) /* put out SS2 or SS3 */ - *bufptr++ = *codeset->parse_info->encoding; - - length = codeset->length; - while (length--) - *bufptr++ = codeset->side == XlcGR ? - BIT8ON(*csptr++) : BIT8OFF(*csptr++); - } - } - - *from_left -= csptr - *from; - *from = (XPointer) csptr; - if (bufptr) - *to += cvt_length; - *to_left -= cvt_length; - - return 0; -} - - -static int -euc_cstowcs( - XlcConv conv, - XPointer *from, - int *from_left, - XPointer *to, - int *to_left, - XPointer *args, - int num_args) -{ - XLCd lcd = (XLCd)conv->state; - const char *csptr = *from; - wchar_t *bufptr = (wchar_t *) *to; - wchar_t *toptr = (wchar_t *) *to; - int csstr_len = *from_left; - int buf_len = *to_left; - wchar_t wch; - int length; - Ulong wc_shift_bits = XLC_GENERIC(lcd, wc_shift_bits); - CodeSet codeset; - - if (num_args < 1) - return -1; - - if (!(codeset = GetCodeSetFromCharSet(lcd, (XlcCharSet) args[0]))) - return -1; - - csstr_len /= codeset->length; - if (csstr_len < buf_len) - buf_len = csstr_len; - *to_left -= buf_len; - - if (bufptr) { - - toptr += buf_len; - *to = (XPointer) toptr; - - while (buf_len--) { - - wch = (wchar_t) BIT8OFF(*csptr); - csptr++; - - length = codeset->length - 1; - while (length--) { - wch = (wch << wc_shift_bits) | BIT8OFF(*csptr); - csptr++; - } - *bufptr++ = wch | codeset->wc_encoding; - } - } - *from_left -= csptr - *from; - *from = (XPointer) csptr; - - return 0; -} - - -static CodeSet -wc_codeset( - XLCd lcd, - wchar_t wch) -{ - CodeSet *codesets = XLC_GENERIC(lcd, codeset_list); - int end = XLC_GENERIC(lcd, codeset_num); - Ulong widech = (Ulong)(wch & XLC_GENERIC(lcd, wc_encode_mask)); - - for (; --end >= 0; codesets++) - if ( widech == (*codesets)->wc_encoding ) - return *codesets; - - return NULL; -} - - -static CodeSet -GetCodeSetFromCharSet( - XLCd lcd, - XlcCharSet charset) -{ - CodeSet *codeset = XLC_GENERIC(lcd, codeset_list); - XlcCharSet *charset_list; - int codeset_num, num_charsets; - - codeset_num = XLC_GENERIC(lcd, codeset_num); - - for ( ; codeset_num-- > 0; codeset++) { - num_charsets = (*codeset)->num_charsets; - charset_list = (*codeset)->charset_list; - - for ( ; num_charsets-- > 0; charset_list++) - if (*charset_list == charset) - return *codeset; - } - - return (CodeSet) NULL; -} - - -static XlcConv -create_conv( - XLCd lcd, - XlcConvMethods methods) -{ - XlcConv conv; - - conv = Xmalloc(sizeof(XlcConvRec)); - if (conv == NULL) - return (XlcConv) NULL; - - conv->methods = methods; - conv->state = (XPointer) lcd; - return conv; -} - - -/* - * Stripped down Direct CT converters for EUC - * - */ - -typedef struct _CTDataRec { - int side; - int length; - char *name; - Ulong wc_encoding; - char sshift; - char *ct_encoding; - int ct_encoding_len; - int set_size; - Uchar min_ch; - Uchar ct_type; -} CTDataRec, *CTData; - -typedef struct _StateRec { - CTData GL_charset; - CTData GR_charset; - CTData charset; -} StateRec, *State; - -#define CT_STD 0 -#define CT_NSTD 1 -#define CT_DIR 2 -#define CT_EXT0 3 -#define CT_EXT1 4 -#define CT_EXT2 5 -#define CT_VER 6 - -static CTDataRec ctdata[] = -{ - { XlcGL, 1, "ISO8859-1:GL", 0, 0, "\033(B" , 3, 0, 0, CT_STD }, - { XlcGR, 1, "ISO8859-1:GR", 0, 0, "\033-A" , 3, 0, 0, CT_STD }, - { XlcGL, 1, "JISX0201.1976-0:GL", 0, 0, "\033(J" , 3, 0, 0, CT_STD }, - { XlcGR, 1, "JISX0201.1976-0:GR", 0, 0, "\033)I" , 3, 0, 0, CT_STD }, - { XlcGL, 2, "JISX0208.1983-0:GL", 0, 0, "\033$(B" , 4, 0, 0, CT_STD }, - { XlcGR, 2, "JISX0208.1983-0:GR", 0, 0, "\033$)B" , 4, 0, 0, CT_STD }, - { XlcGL, 2, "JISX0212.1990-0:GL", 0, 0, "\033$(D" , 4, 0, 0, CT_STD }, - { XlcGR, 2, "JISX0212.1990-0:GR", 0, 0, "\033$)D" , 4, 0, 0, CT_STD }, - { XlcUnknown, 0, "Ignore-Ext-Status?", 0, 0, "\033#" , 2, 0, 0, CT_VER }, - { XlcUnknown, 0, "NonStd-?-OctetChar", 0, 0, "\033%/0" , 4, 0, 0, CT_NSTD }, - { XlcUnknown, 1, "NonStd-1-OctetChar", 0, 0, "\033%/1" , 4, 0, 0, CT_NSTD }, - { XlcUnknown, 2, "NonStd-2-OctetChar", 0, 0, "\033%/2" , 4, 0, 0, CT_NSTD }, - { XlcUnknown, 3, "NonStd-3-OctetChar", 0, 0, "\033%/3" , 4, 0, 0, CT_NSTD }, - { XlcUnknown, 4, "NonStd-4-OctetChar", 0, 0, "\033%/4" , 4, 0, 0, CT_NSTD }, - { XlcUnknown, 0, "Extension-2" , 0, 0, "\033%/" , 3, 0, 0, CT_EXT2 }, - { XlcUnknown, 0, "Extension-0" , 0, 0, "\033" , 1, 0, 0, CT_EXT0 }, - { XlcUnknown, 0, "Begin-L-to-R-Text", 0, 0, "\2331]" , 3, 0, 0, CT_DIR }, - { XlcUnknown, 0, "Begin-R-to-L-Text", 0, 0, "\2332]" , 3, 0, 0, CT_DIR }, - { XlcUnknown, 0, "End-Of-String", 0, 0, "\233]" , 2, 0, 0, CT_DIR }, - { XlcUnknown, 0, "Extension-1" , 0, 0, "\233" , 1, 0, 0, CT_EXT1 }, -}; - -/* Note on above table: euc_ctstombs() and euc_ctstowcs() parser depends on - * certain table entries occuring in decreasing string length-- - * 1. CT_EXT2 and CT_EXT0 entries must occur after CT_NSTD entries. - * 2. CT_DIR and CT_EXT1 entries must occur after CT_DIR entries. - */ - -static CTData ctd_endp = ctdata + ((sizeof(ctdata) / sizeof(CTDataRec))) - 1; -static CTData ctdptr[sizeof(ctdata) / sizeof(CTDataRec)]; - -#define Ascii 0 -#define Kanji 1 -#define Kana 2 -#define Userdef 3 - -/* - * initCTptr(): Set ctdptr[] to point at ctdata[], indexed by codeset_num. - */ -static void -initCTptr( - XLCd lcd) -{ - int num_codesets = XLC_GENERIC(lcd, codeset_num); - int num_charsets; - int i, j; - CodeSet *codesets = XLC_GENERIC(lcd, codeset_list); - CodeSet codeset; - XlcCharSet charset; - CTData ctdp = ctdata; - - ctdptr[Ascii] = &ctdata[0]; /* failsafe */ - - for (i = 0; i < num_codesets; i++) { - - codeset = codesets[i]; - num_charsets = codeset->num_charsets; - - for (j = 0; j < num_charsets; j++) { - - charset = codeset->charset_list[j]; - - for (ctdp = ctdata; ctdp <= ctd_endp; ctdp++) - - if (! strcmp(ctdp->name, charset->name)) { - - ctdptr[codeset->cs_num] = ctdp; - - ctdptr[codeset->cs_num]->wc_encoding = codeset->wc_encoding; - - ctdptr[codeset->cs_num]->set_size = - charset->set_size; - - ctdptr[codeset->cs_num]->min_ch = - charset->set_size == 94 && - (ctdptr[codeset->cs_num]->length > 1 || - ctdptr[codeset->cs_num]->side == XlcGR) ? 0x21 : 0x20; - - if (codeset->parse_info) { - ctdptr[codeset->cs_num]->sshift = - *codeset->parse_info->encoding; - } - - break; - } - } - } -} - - -#define SKIP_I(str) while (*(str) >= 0x20 && *(str) <= 0x2f) (str)++; -#define SKIP_P(str) while (*(str) >= 0x30 && *(str) <= 0x3f) (str)++; - -static int -euc_ctstowcs( - XlcConv conv, - XPointer *from, - int *from_left, - XPointer *to, - int *to_left, - XPointer *args, - int num_args) -{ - XLCd lcd = (XLCd)conv->state; - Ulong wc_shift_bits = XLC_GENERIC(lcd, wc_shift_bits); - const char *inbufptr = *from; - const char *inbuf_base; - wchar_t *outbufptr = (wchar_t *) *to; - wchar_t *outbuf_base = outbufptr; - int clen, length; - int unconv_num = 0; - unsigned int ct_seglen = 0; - Uchar ct_type = 0; - int shift_mult; - wchar_t wc_tmp; - wchar_t wch; - Ulong wc_encoding; - CTData ctdp = ctdata; - CTData GL_ctdp = ctdp; /* GL ctdp save */ - CTData GR_ctdp = ctdp; /* GR ctdp save */ - Bool save_outbuf = True; - /* If outbufptr is NULL, doen't save output, but just counts - a length to hold the output */ - if (outbufptr == NULL) save_outbuf = False; - - for (length = ctdata[Ascii].length; *from_left > 0; (*from_left) -= length) - { - ct_type = CT_STD; - /* change GL/GR charset */ - if(ctdp->side == XlcGR && isleftside(*inbufptr)){ - /* select GL side */ - ctdp = GL_ctdp; - length = ctdp->length; - ct_type = ctdp->ct_type; - }else if(ctdp->side == XlcGL && isrightside(*inbufptr)){ - /* select GR side */ - ctdp = GR_ctdp; - length = ctdp->length; - ct_type = ctdp->ct_type; - } - if (*inbufptr == '\033' || *inbufptr == (char)'\233') { - for (ctdp = ctdata; ctdp <= ctd_endp ; ctdp++) { - - if(!strncmp(inbufptr, ctdp->ct_encoding, ctdp->ct_encoding_len)) - { - inbufptr += ctdp->ct_encoding_len; - (*from_left) -= ctdp->ct_encoding_len; - if (ctdp->length) { - length = ctdp->length; - if( *from_left < length ) { - *to = (XPointer)outbufptr; - *to_left -= outbufptr - outbuf_base; - return( unconv_num + *from_left ); - } - } - ct_type = ctdp->ct_type; - if(ctdp->side == XlcGL){ - GL_ctdp = ctdp; /* save GL ctdp */ - }else{ - GR_ctdp = ctdp; /* save GR ctdp */ - } - break; - } - } - if (ctdp > ctd_endp) /* failed to match CT sequence */ - unconv_num++; - } - -/* The following code insures that non-standard encodings, direction, extension, - * and version strings are ignored; subject to change in future. - */ - switch (ct_type) { - case CT_STD: - break; - case CT_EXT2: - inbufptr++; - (*from_left)--; - case CT_NSTD: - ct_seglen = (BIT8OFF(*inbufptr) << 7) + BIT8OFF(*(inbufptr+1)) + 2; - inbufptr += ct_seglen; - (*from_left) -= ct_seglen; - continue; - case CT_EXT0: - inbuf_base = inbufptr; - SKIP_I(inbufptr); - inbufptr++; - ct_seglen = (unsigned)(inbufptr - inbuf_base); - *(from_left) -= ct_seglen; - continue; - case CT_EXT1: - inbuf_base = inbufptr; - SKIP_P(inbufptr); - SKIP_I(inbufptr); - inbufptr++; - ct_seglen = (unsigned)(inbufptr - inbuf_base); - *(from_left) -= ct_seglen; - continue; - case CT_DIR: - continue; - case CT_VER: - inbufptr += 2; - *(from_left) -= 2; - continue; - } - - wc_encoding = (ctdp == ctdptr[Kana] && isleftside(*inbufptr)) ? - ctdptr[Ascii]->wc_encoding: ctdp->wc_encoding; - - shift_mult = length - 1; - wch = (wchar_t)0; - clen = length; - - do { - wc_tmp = BIT8OFF(*inbufptr++) << (wc_shift_bits * shift_mult); - wch |= wc_tmp; - shift_mult--; - } while (--clen); - - if (save_outbuf == True) - *outbufptr++ = wch | wc_encoding; - if (--*to_left == 0 && *from_left != length) { - *to = (XPointer)outbufptr; - unconv_num = *from_left; - return unconv_num; - } - } - - *to = (XPointer)outbufptr; - - return unconv_num; - -} - - -#define byte1 (length == codeset->length - 1) -#define byte2 (byte1 == 0) -#define kanji (codeset->cs_num == 1) -#define kana (codeset->cs_num == 2) -#define userdef (codeset->cs_num == 3) - -static int -euc_wcstocts( - XlcConv conv, - XPointer *from, - int *from_left, - XPointer *to, - int *to_left, - XPointer *args, - int num_args) -{ - int ct_len = *to_left; - const wchar_t *inbufptr = (const wchar_t *) *from; - char *ctptr = *to; - XPointer ct_base = ctptr; - wchar_t wch; - int length; - int unconv_num = 0; - Uchar tmp; - Uchar t1 = 0; - int num_conv; - - StateRec ct_state; - XLCd lcd = (XLCd)conv->state; - CTData charset; - CodeSet codeset; - Ulong wc_shift = XLC_GENERIC(lcd, wc_shift_bits); - -/* Initial State: */ - ct_state.GL_charset = ctdptr[0]; /* Codeset 0 */ - ct_state.GR_charset = NULL; - - if (*from_left > *to_left) - *from_left = *to_left; - - for (; *from_left > 0 ; (*from_left)-- ) { - - wch = *inbufptr++; - - if (!(codeset = wc_codeset(lcd, wch))) { - unconv_num++; - (*from_left)--; - continue; - } - - charset = ctdptr[codeset->cs_num]; - - length = codeset->length; - wch ^= (wchar_t)codeset->wc_encoding; - - if ( (charset->side == XlcGR && charset != ct_state.GR_charset) || - (charset->side == XlcGL && charset != ct_state.GL_charset) ) { - - ct_len -= ctdptr[codeset->cs_num]->ct_encoding_len; - - if (ct_len < 0) { - unconv_num++; - break; - } - - if (ctptr) { - strcpy(ctptr, ctdptr[codeset->cs_num]->ct_encoding); - ctptr += ctdptr[codeset->cs_num]->ct_encoding_len; - } - } - - if (charset->side == XlcGR) { - ct_state.GR_charset = charset; - ct_state.GL_charset = NULL; - } else if (charset->side == XlcGL) { - ct_state.GL_charset = charset; - ct_state.GR_charset = NULL; - } - - do { - - length--; - tmp = wch>>(wchar_t)( (Ulong)length * wc_shift); - - if (kana) { - if (BADCHAR(charset->min_ch, (char)tmp)) { - unconv_num++; - break; - } - *ctptr++ = (char)BIT8ON(tmp); - } - - else if (byte1 && (kanji || userdef)) - t1 = tmp; - - else if (byte2 && (kanji || userdef)) { - if (BADCHAR(charset->min_ch, (char)t1) || - BADCHAR(charset->min_ch, (char)tmp)) { - unconv_num++; - break; - } - if (charset->side == XlcGR) { - *ctptr++ = (char)BIT8ON(t1); - *ctptr++ = (char)BIT8ON(tmp); - } else { - *ctptr++ = (char)BIT8OFF(t1); - *ctptr++ = (char)BIT8OFF(tmp); - } - } - - else { - if (BADCHAR(charset->min_ch, (char)tmp)) { - unconv_num++; - break; - } - *ctptr++ = (char)tmp; - } - - - } while (length); - - } /* end for */ - - *to = (XPointer)ctptr; - - if ((num_conv = (int)(ctptr - ct_base)) > 0) - (*to_left) -= num_conv; - - return unconv_num; -} -#undef byte1 -#undef byte2 -#undef kana -#undef kanji -#undef userdef - - -#define byte1 (ctdp->length == clen) -#define kana (ctdp == ctdptr[Kana] && isrightside(*inbufptr)) -/* #define kanji (ctdp == ctdptr[Kanji]) */ -#define kanji (strstr(ctdp->name, "JISX0208")) -#define userdef (ctdp == ctdptr[Userdef]) - -static int -euc_ctstombs( - XlcConv conv, - XPointer *from, - int *from_left, - XPointer *to, - int *to_left, - XPointer *args, - int num_args) -{ - char *inbufptr = *from; - XPointer outbufptr = *to; - const char *inbuf_base; - XPointer outbuf_base = outbufptr; - int clen, length; - int unconv_num = 0; - unsigned int ct_seglen = 0; - Uchar ct_type = 0; - CTData ctdp = &ctdata[0]; /* default */ - CTData GL_ctdp = ctdp; /* GL ctdp save */ - CTData GR_ctdp = ctdp; /* GR ctdp save */ - Bool save_outbuf = True; - /* If outbufptr is NULL, doen't save output, but just counts - a length to hold the output */ - if (outbufptr == NULL) save_outbuf = False; - - for (length = ctdata[Ascii].length; *from_left > 0; (*from_left) -= length) - { - ct_type = CT_STD; - /* change GL/GR charset */ - if(ctdp->side == XlcGR && isleftside(*inbufptr)){ - /* select GL side */ - ctdp = GL_ctdp; - length = ctdp->length; - ct_type = ctdp->ct_type; - }else if(ctdp->side == XlcGL && isrightside(*inbufptr)){ - /* select GR side */ - ctdp = GR_ctdp; - length = ctdp->length; - ct_type = ctdp->ct_type; - } - if (*inbufptr == '\033' || *inbufptr == (char)'\233') { - - for (ctdp = ctdata; ctdp <= ctd_endp ; ctdp++) { - - if(!strncmp(inbufptr, ctdp->ct_encoding, ctdp->ct_encoding_len)) - { - inbufptr += ctdp->ct_encoding_len; - (*from_left) -= ctdp->ct_encoding_len; - if (ctdp->length) { - length = ctdp->length; - if( *from_left < length ) { - *to = (XPointer)outbufptr; - *to_left -= outbufptr - outbuf_base; - return( unconv_num + *from_left ); - } - } - ct_type = ctdp->ct_type; - if(ctdp->side == XlcGL){ - GL_ctdp = ctdp; /* save GL ctdp */ - }else{ - GR_ctdp = ctdp; /* save GR ctdp */ - } - break; - } - } - if (ctdp > ctd_endp) /* failed to match CT sequence */ - unconv_num++; - } - -/* The following code insures that non-standard encodings, direction, extension, - * and version strings are ignored; subject to change in future. - */ - switch (ct_type) { - case CT_STD: - break; - case CT_EXT2: - inbufptr++; - (*from_left)--; - case CT_NSTD: - ct_seglen = (BIT8OFF(*inbufptr) << 7) + BIT8OFF(*(inbufptr+1)) + 2; - inbufptr += ct_seglen; - (*from_left) -= ct_seglen; - continue; - case CT_EXT0: - inbuf_base = inbufptr; - SKIP_I(inbufptr); - inbufptr++; - ct_seglen = (unsigned)(inbufptr - inbuf_base); - *(from_left) -= ct_seglen; - continue; - case CT_EXT1: - inbuf_base = inbufptr; - SKIP_P(inbufptr); - SKIP_I(inbufptr); - inbufptr++; - ct_seglen = (unsigned)(inbufptr - inbuf_base); - *(from_left) -= ct_seglen; - continue; - case CT_DIR: - continue; - case CT_VER: - inbufptr += 2; - *(from_left) -= 2; - continue; - } - - clen = length; - do { - - if (byte1) { - if (kanji) { - /* FIXME: assignment of read-only location */ - *inbufptr = BIT8ON(*inbufptr); - *(inbufptr+1) = BIT8ON(*(inbufptr+1)); - } - else if (kana || userdef) { - if (save_outbuf == True) { - *outbufptr++ = ctdp->sshift; - } - (*to_left)--; - } - } - if (save_outbuf == True) { - *outbufptr++ = *inbufptr; - } - (*to_left)--; - inbufptr++; - - if (*to_left == 0 && *from_left != length) { - *to = (XPointer)outbufptr; - unconv_num = *from_left; - return unconv_num; - } - } while (--clen); - } - - *to = outbufptr; - - return unconv_num; - -} -#undef byte1 -#undef kana -#undef kanji -#undef userdef - - -static int -euc_mbstocts( - XlcConv conv, - XPointer *from, - int *from_left, - XPointer *to, - int *to_left, - XPointer *args, - int num_args) -{ - int ct_len = *to_left; - int cs_num; - int clen, length = 0; - int unconv_num = 0; - int num_conv; - const char *inbufptr = *from; - char *ctptr = *to; - XPointer ct_base = ctptr; - - StateRec ct_state; - CTData charset; - XLCd lcd = (XLCd) conv->state; - int codeset_num = XLC_GENERIC(lcd, codeset_num); - -/* Initial State: */ - ct_state.GL_charset = NULL; - ct_state.GR_charset = NULL; - - if (*from_left > *to_left) - *from_left = *to_left; - - for (;*from_left > 0; (*from_left) -= length) { - - if (isleftside(*inbufptr)) { /* 7-bit (CS0) */ - if (ASCII_CODESET >= codeset_num) { - unconv_num++; - (*from_left)--; - continue; - } - cs_num = Ascii; - charset = ctdptr[Ascii]; - } - else if ((Uchar)*inbufptr == SS2) { /* Kana */ - if (KANA_CODESET >= codeset_num) { - unconv_num++; - (*from_left)--; - continue; - } - cs_num = Kana; - charset = ctdptr[Kana]; - inbufptr++; - (*from_left)--; - } - else if ((Uchar)*inbufptr == SS3) { /* Userdef */ - if (USERDEF_CODESET >= codeset_num) { - unconv_num++; - (*from_left)--; - continue; - } - cs_num = Userdef; - charset = ctdptr[Userdef]; - inbufptr++; - (*from_left)--; - } - else { - if (KANJI_CODESET >= codeset_num) { - unconv_num++; - (*from_left)--; - continue; - } - cs_num = Kanji; - charset = ctdptr[Kanji]; - } - - length = charset->length; - - if (BADCHAR(charset->min_ch, *inbufptr)) - continue; - - if ( (charset->side == XlcGR && charset != ct_state.GR_charset) || - (charset->side == XlcGL && charset != ct_state.GL_charset) ) { - - ct_len -= ctdptr[cs_num]->ct_encoding_len; - if (ct_len < 0) { - unconv_num++; - break; - } - - if (ctptr) { - strcpy(ctptr, ctdptr[cs_num]->ct_encoding); - ctptr += ctdptr[cs_num]->ct_encoding_len; - } - } - - if (charset->side == XlcGR) { - ct_state.GR_charset = charset; - ct_state.GL_charset = NULL; - } else if (charset->side == XlcGL) { - ct_state.GL_charset = charset; - ct_state.GR_charset = NULL; - } - - clen = length; - - do { - *ctptr++ = charset == ct_state.GR_charset ? - BIT8ON(*inbufptr++) : BIT8OFF(*inbufptr++); - } while (--clen); - } - - *to = (XPointer)ctptr; - - if ((num_conv = (int)(ctptr - ct_base)) > 0) - (*to_left) -= num_conv; - return unconv_num; - -} - - -static void -close_converter( - XlcConv conv) -{ - Xfree(conv); -} - -enum { MBSTOCS, WCSTOCS, MBTOCS, CSTOMBS, CSTOWCS, MBSTOWCS, WCSTOMBS, - CTSTOWCS, CTSTOMBS, WCSTOCTS, MBSTOCTS }; - -static XlcConvMethodsRec conv_methods[] = { - {close_converter, euc_mbstocs, NULL }, - {close_converter, euc_wcstocs, NULL }, - {close_converter, euc_mbtocs, NULL }, - {close_converter, euc_cstombs, NULL }, - {close_converter, euc_cstowcs, NULL }, - {close_converter, euc_mbstowcs, NULL }, - {close_converter, euc_wcstombs, NULL }, - {close_converter, euc_ctstowcs, NULL }, - {close_converter, euc_ctstombs, NULL }, - {close_converter, euc_wcstocts, NULL }, - {close_converter, euc_mbstocts, NULL }, -}; - - -static XlcConv -open_mbstocs( - XLCd from_lcd, - const char *from_type, - XLCd to_lcd, - const char *to_type) -{ - return create_conv(from_lcd, &conv_methods[MBSTOCS]); -} - -static XlcConv -open_wcstocs( - XLCd from_lcd, - const char *from_type, - XLCd to_lcd, - const char *to_type) -{ - return create_conv(from_lcd, &conv_methods[WCSTOCS]); -} - -static XlcConv -open_mbtocs( - XLCd from_lcd, - const char *from_type, - XLCd to_lcd, - const char *to_type) -{ - return create_conv(from_lcd, &conv_methods[MBTOCS]); -} - -static XlcConv -open_cstombs( - XLCd from_lcd, - const char *from_type, - XLCd to_lcd, - const char *to_type) -{ - return create_conv(from_lcd, &conv_methods[CSTOMBS]); -} - -static XlcConv -open_cstowcs( - XLCd from_lcd, - const char *from_type, - XLCd to_lcd, - const char *to_type) -{ - return create_conv(from_lcd, &conv_methods[CSTOWCS]); -} - -static XlcConv -open_mbstowcs( - XLCd from_lcd, - const char *from_type, - XLCd to_lcd, - const char *to_type) -{ - return create_conv(from_lcd, &conv_methods[MBSTOWCS]); -} - -static XlcConv -open_wcstombs( - XLCd from_lcd, - const char *from_type, - XLCd to_lcd, - const char *to_type) -{ - return create_conv(from_lcd, &conv_methods[WCSTOMBS]); -} - -static XlcConv -open_ctstowcs( - XLCd from_lcd, - const char *from_type, - XLCd to_lcd, - const char *to_type) -{ - return create_conv(from_lcd, &conv_methods[CTSTOWCS]); -} - -static XlcConv -open_ctstombs( - XLCd from_lcd, - const char *from_type, - XLCd to_lcd, - const char *to_type) -{ - return create_conv(from_lcd, &conv_methods[CTSTOMBS]); -} - -static XlcConv -open_wcstocts( - XLCd from_lcd, - const char *from_type, - XLCd to_lcd, - const char *to_type) -{ - return create_conv(from_lcd, &conv_methods[WCSTOCTS]); -} - -static XlcConv -open_mbstocts( - XLCd from_lcd, - const char *from_type, - XLCd to_lcd, - const char *to_type) -{ - return create_conv(from_lcd, &conv_methods[MBSTOCTS]); -} - -XLCd -_XlcEucLoader( - const char *name) -{ - XLCd lcd; - - lcd = _XlcCreateLC(name, _XlcGenericMethods); - if (lcd == NULL) - return lcd; - - if (!XLC_PUBLIC_PART(lcd)->codeset || - (_XlcNCompareISOLatin1(XLC_PUBLIC_PART(lcd)->codeset, "euc", 3))) { - _XlcDestroyLC(lcd); - return (XLCd) NULL; - } - - initCTptr(lcd); - - _XlcSetConverter(lcd, XlcNMultiByte, lcd, XlcNCharSet, open_mbstocs); - _XlcSetConverter(lcd, XlcNWideChar, lcd, XlcNCharSet, open_wcstocs); - _XlcSetConverter(lcd, XlcNCharSet, lcd, XlcNMultiByte, open_cstombs); - _XlcSetConverter(lcd, XlcNCharSet, lcd, XlcNWideChar, open_cstowcs); - _XlcSetConverter(lcd, XlcNMultiByte, lcd, XlcNChar, open_mbtocs); - -#ifndef FORCE_INDIRECT_CONVERTER - _XlcSetConverter(lcd, XlcNCompoundText, lcd, XlcNMultiByte, open_ctstombs); - _XlcSetConverter(lcd, XlcNCompoundText, lcd, XlcNWideChar, open_ctstowcs); - _XlcSetConverter(lcd, XlcNMultiByte, lcd, XlcNCompoundText, open_mbstocts); - _XlcSetConverter(lcd, XlcNMultiByte, lcd, XlcNWideChar, open_mbstowcs); - _XlcSetConverter(lcd, XlcNWideChar, lcd, XlcNCompoundText, open_wcstocts); - _XlcSetConverter(lcd, XlcNWideChar, lcd, XlcNMultiByte, open_wcstombs); -#endif - - _XlcAddUtf8Converters(lcd); - - return lcd; -} - -#else -typedef int dummy; -#endif /* X_LOCALE */ |