diff options
Diffstat (limited to 'nx-X11/lib/X11/lcJis.c')
-rw-r--r-- | nx-X11/lib/X11/lcJis.c | 947 |
1 files changed, 947 insertions, 0 deletions
diff --git a/nx-X11/lib/X11/lcJis.c b/nx-X11/lib/X11/lcJis.c new file mode 100644 index 000000000..bdd46e36e --- /dev/null +++ b/nx-X11/lib/X11/lcJis.c @@ -0,0 +1,947 @@ +/* $Xorg: lcJis.c,v 1.3 2000/08/17 19:45:18 cpqbld Exp $ */ +/* + * Copyright 1992, 1993 by TOSHIBA Corp. + * + * Permission to use, copy, modify, and distribute this software and its + * documentation for any purpose and without fee is hereby granted, 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 TOSHIBA not be used in advertising + * or publicity pertaining to distribution of the software without specific, + * written prior permission. TOSHIBA make no representations about the + * suitability of this software for any purpose. It is provided "as is" + * without express or implied warranty. + * + * TOSHIBA DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING + * ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL + * TOSHIBA 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. + * + * Author: Katsuhisa Yano TOSHIBA Corp. + * mopi@osa.ilab.toshiba.co.jp + */ +/* $XFree86: xc/lib/X11/lcJis.c,v 1.9 2002/04/10 16:20:06 tsi Exp $ */ + +/* + * A Japanese JIS locale. + * Supports: all locales with codeset JIS7. + * How: Provides converters for JIS. + * 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 <stdio.h> + +#if !defined(macII) && !defined(X_LOCALE) +#define STDCVT +#endif + +typedef struct _StateRec { + XLCd lcd; + XlcCharSet charset; + XlcCharSet GL_charset; + XlcCharSet GR_charset; +} StateRec, *State; + +static void +init_state( + XlcConv conv) +{ + State state = (State) conv->state; + XLCdGenericPart *gen = XLC_GENERIC_PART(state->lcd); + CodeSet codeset; + + codeset = gen->initial_state_GL; + if (codeset && codeset->charset_list) + state->GL_charset = *codeset->charset_list; + codeset = gen->initial_state_GR; + if (codeset && codeset->charset_list) + state->GR_charset = *codeset->charset_list; + + if (state->GL_charset == NULL) + if ((codeset = *gen->codeset_list) != NULL) + state->GL_charset = *codeset->charset_list; +} + +static int +compare( + const char *src, + const char *encoding, + int length) +{ + const char *start = src; + + while (length-- > 0) { + if (*src++ != *encoding++) + return 0; + if (*encoding == '\0') + return src - start; + } + + return 0; +} + +static int +mbtocs( + XlcConv conv, + XPointer *from, + int *from_left, + XPointer *to, + int *to_left, + XPointer *args, + int num_args) +{ + State state = (State) conv->state; + XLCd lcd = state->lcd; + const char *src; + char *dst; + unsigned char *mb_parse_table; + ParseInfo *parse_list, parse_info; + XlcCharSet charset; + int length, number, encoding_len = 0; + int i; + + src = *((const char **) from); + dst = *((char **) to); + + mb_parse_table = XLC_GENERIC(lcd, mb_parse_table); + if (mb_parse_table != NULL) { + number = mb_parse_table[(unsigned char) *src]; + if (number > 0) { + parse_list = XLC_GENERIC(lcd, mb_parse_list) + number - 1; + for ( ; (parse_info = *parse_list) != NULL; parse_list++) { + encoding_len = compare(src, parse_info->encoding, *from_left); + if (encoding_len > 0) { + switch (parse_info->type) { + case E_SS: + src += encoding_len; + charset = *parse_info->codeset->charset_list; + goto found; + case E_LSL: + case E_LSR: + src += encoding_len; + charset = *parse_info->codeset->charset_list; + if (parse_info->type == E_LSL) + state->GL_charset = charset; + else + state->GR_charset = charset; + length = 0; + goto end; + case E_GL: + charset = state->GL_charset; + goto found; + case E_GR: + charset = state->GR_charset; + goto found; + default: + break; + } + } + } + } + } + + if ((*src & 0x80) && state->GR_charset) + charset = state->GR_charset; + else + charset = state->GL_charset; + +found: + if (charset == NULL || + (num_args == 2 && (XlcCharSet) args[1] != charset)) + return -1; + + length = charset->char_size; + if (length > *from_left - encoding_len) + return -1; + + if (dst) { + if (length > *to_left) + return -1; + if (charset->side == XlcGL) { + for (i = 0; i < length; i++) + *dst++ = *src++ & 0x7f; + } else if (charset->side == XlcGR) { + for (i = 0; i < length; i++) + *dst++ = *src++ | 0x80; + } else { + for (i = 0; i < length; i++) + *dst++ = *src++; + } + *to = (XPointer) dst; + *to_left -= length; + } +end: + *from = (XPointer) src; + *from_left -= encoding_len + length; + state->charset = charset; + if (num_args == 1) + *((XlcCharSet *) args[0]) = charset; + + return 0; +} + +static int +mbstocs( + XlcConv conv, + XPointer *from, + int *from_left, + XPointer *to, + int *to_left, + XPointer *args, + int num_args) +{ + XlcCharSet charset = NULL; + XPointer tmp_args[2], save_from = *from; + int ret, unconv_num = 0, tmp_num = 1; + + tmp_args[0] = (XPointer) &charset; + + while (*from_left > 0 && *to_left > 0) { + ret = mbtocs(conv, from, from_left, to, to_left, tmp_args, tmp_num); + if (ret < 0) + break; + unconv_num += ret; + if (tmp_num == 1 && charset) { + tmp_args[1] = (XPointer) charset; + tmp_num = 2; + } + } + + if (save_from == *from) + return -1; + + if (num_args > 0) + *((XlcCharSet *) args[0]) = charset; + + return unconv_num; +} + +static CodeSet +wc_parse_codeset( + XLCd lcd, + const wchar_t *wcstr) +{ + CodeSet *codeset; + unsigned long wc_encoding; + int num; + + wc_encoding = *wcstr & XLC_GENERIC(lcd, wc_encode_mask); + num = XLC_GENERIC(lcd, codeset_num); + codeset = XLC_GENERIC(lcd, codeset_list); + while (num-- > 0) { + if (wc_encoding == (*codeset)->wc_encoding) + return *codeset; + codeset++; + } + + return NULL; +} + +static int +wcstocs( + XlcConv conv, + XPointer *from, + int *from_left, + XPointer *to, + int *to_left, + XPointer *args, + int num_args) +{ + State state = (State) conv->state; + XLCd lcd = state->lcd; + const wchar_t *wcptr; + char *bufptr; + wchar_t wch; + char *tmpptr; + int length; + CodeSet codeset; + unsigned long wc_encoding; + int wcstr_len, buf_len; + + if (from == NULL || *from == NULL) + return 0; + + wcptr = *((const wchar_t **) from); + bufptr = *((char **) to); + wcstr_len = *from_left; + buf_len = *to_left; + + codeset = wc_parse_codeset(lcd, wcptr); + if (codeset == NULL) + 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; + if ((*codeset->charset_list)->side == XlcGL) { + while (length--) { + *tmpptr-- = (unsigned char) (wch & 0x7f); + wch >>= (wchar_t)XLC_GENERIC(lcd, wc_shift_bits); + } + } else if ((*codeset->charset_list)->side == XlcGR) { + while (length--) { + *tmpptr-- = (unsigned char) (wch | 0x80); + wch >>= (wchar_t)XLC_GENERIC(lcd, wc_shift_bits); + } + } else { + while (length--) { + *tmpptr-- = (unsigned char) 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 - *((char **) to); + *to = bufptr; + + return 0; +} + +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 int +cstombs( + XlcConv conv, + XPointer *from, + int *from_left, + XPointer *to, + int *to_left, + XPointer *args, + int num_args) +{ + State state = (State) conv->state; + const char *csptr; + char *bufptr; + int csstr_len; + int buf_len; + int num, encoding_len = 0; + CodeSet codeset; + XlcCharSet charset; + EncodingType type; + int cvt_length; + + csptr = *((const char **) from); + bufptr = *((char **) to); + csstr_len = *from_left; + buf_len = *to_left; + + if (num_args < 1) + return -1; + + charset = (XlcCharSet) args[0]; + + codeset = GetCodeSetFromCharSet(state->lcd, charset); + if (codeset == NULL) + return -1; + + cvt_length = 0; + if (codeset->parse_info) { + switch (type = codeset->parse_info->type) { + case E_SS: + encoding_len = strlen(codeset->parse_info->encoding); + break; + case E_LSL: + case E_LSR: + if (type == E_LSL) { + if (charset == state->GL_charset) + break; + } else { + if (charset == state->GR_charset) + break; + } + encoding_len = strlen(codeset->parse_info->encoding); + if (encoding_len > buf_len) + return -1; + cvt_length += encoding_len; + if (bufptr) { + strcpy(bufptr, codeset->parse_info->encoding); + bufptr += encoding_len; + } + buf_len -= encoding_len; + encoding_len = 0; + if (type == E_LSL) + state->GL_charset = charset; + else + state->GR_charset = charset; + break; + default: + break; + } + } + + csstr_len /= codeset->length; + buf_len /= codeset->length + encoding_len; + if (csstr_len < buf_len) + buf_len = csstr_len; + + cvt_length += buf_len * (encoding_len + codeset->length); + if (bufptr) { + while (buf_len--) { + if (encoding_len) { + strcpy(bufptr, codeset->parse_info->encoding); + bufptr += encoding_len; + } + num = codeset->length; + if (codeset->side == XlcGL) { + while (num--) + *bufptr++ = *csptr++ & 0x7f; + } else if (codeset->side == XlcGR) { + while (num--) + *bufptr++ = *csptr++ | 0x80; + } else { + while (num--) + *bufptr++ = *csptr++; + } + } + } + + *from_left -= csptr - *((char **) from); + *from = (XPointer) csptr; + + if (bufptr) + *to = (XPointer) bufptr; + *to_left -= cvt_length; + + return 0; +} + +static int +cstowcs( + XlcConv conv, + XPointer *from, + int *from_left, + XPointer *to, + int *to_left, + XPointer *args, + int num_args) +{ + State state = (State) conv->state; + XLCd lcd = state->lcd; + const char *csptr; + wchar_t *bufptr; + int csstr_len; + int buf_len; + wchar_t wch; + unsigned long code_mask, wc_encoding; + int num, length, wc_shift_bits; + CodeSet codeset; + + csptr = *((const char **) from); + bufptr = *((wchar_t **) to); + csstr_len = *from_left; + buf_len = *to_left; + + if (num_args < 1) + return -1; + + codeset = GetCodeSetFromCharSet(lcd, (XlcCharSet) args[0]); + if (codeset == NULL) + return -1; + + length = codeset->length; + csstr_len /= length; + if (csstr_len < buf_len) + buf_len = csstr_len; + + code_mask = ~XLC_GENERIC(lcd, wc_encode_mask); + wc_encoding = codeset->wc_encoding; + wc_shift_bits = XLC_GENERIC(lcd, wc_shift_bits); + + *to_left -= buf_len; + + if (bufptr) { + while (buf_len--) { + wch = (wchar_t) (*csptr++ & 0x7f); + num = length - 1; + while (num--) + wch = (wch << wc_shift_bits) | (*csptr++ & 0x7f); + + *bufptr++ = (wch & code_mask) | wc_encoding; + } + } + + *from_left -= csptr - *((char **) from); + *from = (XPointer) csptr; + + if (bufptr) + *to = (XPointer) bufptr; + + return 0; +} + + +static void +close_converter( + XlcConv conv) +{ + if (conv->state) { + Xfree((char *) conv->state); + } + + Xfree((char *) conv); +} + +static XlcConv +create_conv( + XLCd lcd, + XlcConvMethods methods) +{ + XlcConv conv; + State state; + + conv = (XlcConv) Xmalloc(sizeof(XlcConvRec)); + if (conv == NULL) + return (XlcConv) NULL; + + conv->methods = (XlcConvMethods) Xmalloc(sizeof(XlcConvMethodsRec)); + if (conv->methods == NULL) + goto err; + *conv->methods = *methods; + if (XLC_PUBLIC(lcd, is_state_depend)) + conv->methods->reset = init_state; + + conv->state = (XPointer) Xmalloc(sizeof(StateRec)); + if (conv->state == NULL) + goto err; + bzero((char *) conv->state, sizeof(StateRec)); + + state = (State) conv->state; + state->lcd = lcd; + init_state(conv); + + return conv; + +err: + close_converter(conv); + + return (XlcConv) NULL; +} + +static XlcConvMethodsRec mbstocs_methods = { + close_converter, + mbstocs, + NULL +}; + +static XlcConv +open_mbstocs( + XLCd from_lcd, + const char *from_type, + XLCd to_lcd, + const char *to_type) +{ + return create_conv(from_lcd, &mbstocs_methods); +} + +static XlcConvMethodsRec wcstocs_methods = { + close_converter, + wcstocs, + NULL +}; + +static XlcConv +open_wcstocs( + XLCd from_lcd, + const char *from_type, + XLCd to_lcd, + const char *to_type) +{ + return create_conv(from_lcd, &wcstocs_methods); +} + +static XlcConvMethodsRec mbtocs_methods = { + close_converter, + mbtocs, + NULL +}; + +static XlcConv +open_mbtocs( + XLCd from_lcd, + const char *from_type, + XLCd to_lcd, + const char *to_type) +{ + return create_conv(from_lcd, &mbtocs_methods); +} + +static XlcConvMethodsRec cstombs_methods = { + close_converter, + cstombs, + NULL +}; + +static XlcConv +open_cstombs( + XLCd from_lcd, + const char *from_type, + XLCd to_lcd, + const char *to_type) +{ + return create_conv(from_lcd, &cstombs_methods); +} + +static XlcConvMethodsRec cstowcs_methods = { + close_converter, + cstowcs, + NULL +}; + +static XlcConv +open_cstowcs( + XLCd from_lcd, + const char *from_type, + XLCd to_lcd, + const char *to_type) +{ + return create_conv(from_lcd, &cstowcs_methods); +} + +#ifdef STDCVT +static int +stdc_mbstowcs( + XlcConv conv, + XPointer *from, + int *from_left, + XPointer *to, + int *to_left, + XPointer *args, + int num_args) +{ + const char *src = *((const char **) from); + wchar_t *dst = *((wchar_t **) to); + int src_left = *from_left; + int dst_left = *to_left; + int length; + + while (src_left > 0 && dst_left > 0) { + length = mbtowc(dst, src, src_left); + if (length < 0) + break; + + src += length; + src_left -= length; + if (dst) + dst++; + dst_left--; + + if (length == 0) { + src++; + src_left--; + break; + } + } + + if (*from_left == src_left) + return -1; + + *from = (XPointer) src; + if (dst) + *to = (XPointer) dst; + *from_left = src_left; + *to_left = dst_left; + + return 0; +} + +static int +stdc_wcstombs( + XlcConv conv, + XPointer *from, + int *from_left, + XPointer *to, + int *to_left, + XPointer *args, + int num_args) +{ + const wchar_t *src = *((const wchar_t **) from); + char *dst = *((char **) to); + int src_left = *from_left; + int dst_left = *to_left; + int length; + + while (src_left > 0 && dst_left > 0) { + length = wctomb(dst, *src); /* XXX */ + if (length < 0 || dst_left < length) + break; + + src++; + src_left--; + dst += length; + dst_left -= length; + + if (length == 0) { + dst++; + dst_left--; + break; + } + } + + if (*from_left == src_left) + return -1; + + *from = (XPointer) src; + *to = (XPointer) dst; + *from_left = src_left; + *to_left = dst_left; + + return 0; +} + +static int +stdc_wcstocs( + XlcConv conv, + XPointer *from, + int *from_left, + XPointer *to, + int *to_left, + XPointer *args, + int num_args) +{ + const wchar_t *src = *((const wchar_t **) from); + wchar_t wch; + XlcCharSet charset = NULL; + XPointer tmp_args[2], tmp_from, save_from = *from; + char tmp[32]; + int length, ret, src_left = *from_left; + int unconv_num = 0, tmp_num = 1; + + tmp_args[0] = (XPointer) &charset; + + while (src_left > 0 && *to_left > 0) { + if (wch = *src) { + length = wctomb(tmp, wch); + } else { + length = 1; + *tmp = '\0'; + } + + if (length < 0) + break; + + tmp_from = (XPointer) tmp; + ret = mbtocs(conv, &tmp_from, &length, to, to_left, tmp_args, tmp_num); + if (ret < 0) + break; + unconv_num += ret; + if (tmp_num == 1 && charset) { + tmp_args[1] = (XPointer) charset; + tmp_num = 2; + } + + src++; + src_left--; + } + + if (save_from == (XPointer) src) + return -1; + + *from = (XPointer) src; + *from_left = src_left; + + if (num_args > 0) + *((XlcCharSet *) args[0]) = charset; + + return unconv_num; +} + +#define DefineLocalBuf char local_buf[BUFSIZ] +#define AllocLocalBuf(length) (length > BUFSIZ ? (char*) Xmalloc(length) : local_buf) +#define FreeLocalBuf(ptr) if (ptr != local_buf) Xfree(ptr) + +static int +stdc_cstowcs( + XlcConv conv, + XPointer *from, + int *from_left, + XPointer *to, + int *to_left, + XPointer *args, + int num_args) +{ + XLCd lcd = ((State) conv->state)->lcd; + DefineLocalBuf; + XPointer buf, save_buf; + int length, left, ret; + + left = length = *to_left * XLC_PUBLIC(lcd, mb_cur_max); + buf = save_buf = (XPointer) AllocLocalBuf(length); + if (buf == NULL) + return -1; + + ret = cstombs(conv, from, from_left, &buf, &left, args, num_args); + if (ret < 0) + goto err; + + buf = save_buf; + length -= left; + if (stdc_mbstowcs(conv, &buf, &length, to, to_left, args, num_args) < 0) + ret = -1; + +err: + FreeLocalBuf(save_buf); + + return ret; +} + +static XlcConvMethodsRec stdc_mbstowcs_methods = { + close_converter, + stdc_mbstowcs, + NULL +}; + +static XlcConv +open_stdc_mbstowcs( + XLCd from_lcd, + const char *from_type, + XLCd to_lcd, + const char *to_type) +{ + return create_conv(from_lcd, &stdc_mbstowcs_methods); +} + +static XlcConvMethodsRec stdc_wcstombs_methods = { + close_converter, + stdc_wcstombs, + NULL +}; + +static XlcConv +open_stdc_wcstombs( + XLCd from_lcd, + const char *from_type, + XLCd to_lcd, + const char *to_type) +{ + return create_conv(from_lcd, &stdc_wcstombs_methods); +} + +static XlcConvMethodsRec stdc_wcstocs_methods = { + close_converter, + stdc_wcstocs, + NULL +}; + +static XlcConv +open_stdc_wcstocs( + XLCd from_lcd, + const char *from_type, + XLCd to_lcd, + const char *to_type) +{ + return create_conv(from_lcd, &stdc_wcstocs_methods); +} + +static XlcConvMethodsRec stdc_cstowcs_methods = { + close_converter, + stdc_cstowcs, + NULL +}; + +static XlcConv +open_stdc_cstowcs( + XLCd from_lcd, + const char *from_type, + XLCd to_lcd, + const char *to_type) +{ + return create_conv(from_lcd, &stdc_cstowcs_methods); +} +#endif /* STDCVT */ + +XLCd +_XlcJisLoader( + const char *name) +{ + XLCd lcd; +#ifdef STDCVT + XLCdGenericPart *gen; +#endif + + lcd = _XlcCreateLC(name, _XlcGenericMethods); + if (lcd == NULL) + return lcd; + + if (!XLC_PUBLIC_PART(lcd)->codeset || + (_XlcCompareISOLatin1(XLC_PUBLIC_PART(lcd)->codeset, "JIS7"))) { + _XlcDestroyLC(lcd); + return (XLCd) NULL; + } + + _XlcSetConverter(lcd, XlcNMultiByte, lcd, XlcNChar, open_mbtocs); + _XlcSetConverter(lcd, XlcNMultiByte, lcd, XlcNCharSet, open_mbstocs); + _XlcSetConverter(lcd, XlcNCharSet, lcd, XlcNMultiByte, open_cstombs); + +#ifdef STDCVT + gen = XLC_GENERIC_PART(lcd); + + if (gen->use_stdc_env == True) { + _XlcSetConverter(lcd,XlcNMultiByte,lcd,XlcNWideChar,open_stdc_mbstowcs); + _XlcSetConverter(lcd,XlcNWideChar,lcd,XlcNMultiByte,open_stdc_wcstombs); + } + if (gen->force_convert_to_mb == True) { + _XlcSetConverter(lcd, XlcNWideChar, lcd, XlcNCharSet,open_stdc_wcstocs); + _XlcSetConverter(lcd, XlcNCharSet, lcd, XlcNWideChar,open_stdc_cstowcs); + } else { +#endif + _XlcSetConverter(lcd, XlcNWideChar, lcd, XlcNCharSet, open_wcstocs); + _XlcSetConverter(lcd, XlcNCharSet, lcd, XlcNWideChar, open_cstowcs); +#ifdef STDCVT + } +#endif + + _XlcAddUtf8Converters(lcd); + + return lcd; +} + +#else +typedef int dummy; +#endif /* X_LOCALE */ |