X-Git-Url: http://git.chise.org/gitweb/?a=blobdiff_plain;f=src%2Ftext-coding.c;h=8015b7cae2d67c0521aa008207d02d096f7a1708;hb=b47693946488f82cd1f0132a944dc0c57ac2d653;hp=6baefdd42192d34b3ddab0d2c6061b48a246a53b;hpb=c53db1b5dd3e48eb247d513033d4ca3f02311929;p=chise%2Fxemacs-chise.git.1 diff --git a/src/text-coding.c b/src/text-coding.c index 6baefdd..8015b7c 100644 --- a/src/text-coding.c +++ b/src/text-coding.c @@ -1,7 +1,8 @@ /* Code conversion functions. Copyright (C) 1991, 1995 Free Software Foundation, Inc. Copyright (C) 1995 Sun Microsystems, Inc. - Copyright (C) 1999,2000,2001,2002,2003 MORIOKA Tomohiko + Copyright (C) 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2008, 2011 + MORIOKA Tomohiko This file is part of XEmacs. @@ -23,7 +24,7 @@ Boston, MA 02111-1307, USA. */ /* Synched up with: Mule 2.3. Not in FSF. */ /* Rewritten by Ben Wing . */ -/* Rewritten by MORIOKA Tomohiko for XEmacs UTF-2000. */ +/* Rewritten by MORIOKA Tomohiko for XEmacs CHISE. */ #include #include "lisp.h" @@ -107,8 +108,10 @@ Lisp_Object Qshort, Qno_ascii_eol, Qno_ascii_cntl, Qseven, Qlock_shift; #ifdef UTF2000 Lisp_Object Qutf_8_mcs; Lisp_Object Qdisable_composition; +Lisp_Object Qccs_priority_list; Lisp_Object Quse_entity_reference; Lisp_Object Qd, Qx, QX; +Lisp_Object Vdecomposition_feature_list; #endif Lisp_Object Qencode, Qdecode; @@ -1052,6 +1055,12 @@ if TYPE is 'ccl: parse_charset_conversion_specs (codesys->iso2022.output_conv, value); } +#ifdef UTF2000 + else if (EQ (key, Qccs_priority_list)) + { + codesys->ccs_priority_list = value; + } +#endif else signal_simple_error ("Unrecognized property", key); } @@ -1484,6 +1493,8 @@ Return the PROP property of CODING-SYSTEM. return XCODING_SYSTEM_DISABLE_COMPOSITION (coding_system) ? Qt : Qnil; else if (EQ (prop, Quse_entity_reference)) return XCODING_SYSTEM_USE_ENTITY_REFERENCE (coding_system) ? Qt : Qnil; + else if (EQ (prop, Qccs_priority_list)) + return XCODING_SYSTEM_CCS_PRIORITY_LIST (coding_system); #endif else if (type == CODESYS_ISO2022) { @@ -2269,6 +2280,8 @@ do { \ #define DECODING_STREAM_DATA(stream) LSTREAM_TYPE_DATA (stream, decoding) +#define ER_BUF_SIZE 24 + struct decoding_stream { /* Coding system that governs the conversion. */ @@ -2309,8 +2322,9 @@ struct decoding_stream unsigned char counter; #endif #ifdef UTF2000 + char bom_flag; unsigned char er_counter; - unsigned char er_buf[16]; + unsigned char er_buf[ER_BUF_SIZE]; unsigned combined_char_count; Emchar combined_chars[16]; @@ -2453,6 +2467,7 @@ reset_decoding_stream (struct decoding_stream *str) str->counter = 0; #endif /* MULE */ #ifdef UTF2000 + str->bom_flag = 0; str->er_counter = 0; str->combined_char_count = 0; str->combining_table = Qnil; @@ -3244,6 +3259,8 @@ decode_flush_er_chars (struct decoding_stream *str, unsigned_char_dynarr* dst) } } +EXFUN (Fregexp_quote, 1); + void decode_add_er_char (struct decoding_stream *str, Emchar character, unsigned_char_dynarr* dst); void @@ -3265,7 +3282,7 @@ decode_add_er_char (struct decoding_stream *str, Emchar c, { Lisp_Object string = make_string (str->er_buf, str->er_counter); - Lisp_Object rest = Vcoded_charset_entity_reference_alist; + Lisp_Object rest; Lisp_Object cell; Lisp_Object ret; Lisp_Object pat; @@ -3273,7 +3290,8 @@ decode_add_er_char (struct decoding_stream *str, Emchar c, Lisp_Object char_type; int base; - while (!NILP (rest)) + for ( rest = Vcoded_charset_entity_reference_alist; + !NILP (rest); rest = Fcdr (rest) ) { cell = Fcar (rest); ccs = Fcar (cell); @@ -3293,6 +3311,7 @@ decode_add_er_char (struct decoding_stream *str, Emchar c, pat = ret; else continue; + pat = Fregexp_quote (pat); cell = Fcdr (cell); cell = Fcdr (cell); @@ -3328,13 +3347,19 @@ decode_add_er_char (struct decoding_stream *str, Emchar c, make_int (base))); Emchar chr = NILP (char_type) - ? DECODE_CHAR (ccs, code) + ? DECODE_CHAR (ccs, code, 0) : decode_builtin_char (ccs, code); - DECODE_ADD_UCS_CHAR (chr, dst); + if ( chr >= 0 ) + DECODE_ADD_UCS_CHAR (chr, dst); + else + { + Dynarr_add_many (dst, str->er_buf, str->er_counter); + Dynarr_add (dst, ';'); + } + goto decoded; } - rest = Fcdr (rest); } if (!NILP (Fstring_match (build_string ("^&MCS-\\([0-9A-F]+\\)$"), string, Qnil, Qnil))) @@ -3356,7 +3381,7 @@ decode_add_er_char (struct decoding_stream *str, Emchar c, decoded: str->er_counter = 0; } - else if ( (str->er_counter >= 16) || (c >= 0x7F) ) + else if ( (str->er_counter >= ER_BUF_SIZE) || (c >= 0x7F) ) { Dynarr_add_many (dst, str->er_buf, str->er_counter); str->er_counter = 0; @@ -3375,7 +3400,7 @@ char_encode_as_entity_reference (Emchar ch, char* buf) Lisp_Object ccs; Lisp_Object char_type; int format_columns, idx; - char format[18]; + char format[ER_BUF_SIZE]; while (!NILP (rest)) { @@ -3390,24 +3415,36 @@ char_encode_as_entity_reference (Emchar ch, char* buf) char_type = Qnil; if (!NILP (ccs = Ffind_charset (ccs))) { - int code_point = charset_code_point (ccs, ch, 0); + int code_point + = charset_code_point (ccs, ch, + NILP (char_type) ? + CHAR_ALL : CHAR_ISOLATED_ONLY ); if ( (code_point >= 0) - && (NILP (char_type) - || DECODE_CHAR (ccs, code_point) != ch) ) + && ( NILP (char_type) +#if 1 + || ( charset_code_point (ccs, ch, CHAR_DEFINED_ONLY) + == -1 ) +#endif +#if 0 + || ( DECODE_CHAR (ccs, code_point, 0) != ch ) +#endif + ) + ) { Lisp_Object ret; cell = Fcdr (cell); ret = Fcar (cell); - if (STRINGP (ret) && ((idx = XSTRING_LENGTH (ret)) <= 6)) + if ( STRINGP (ret) && + ( (idx = XSTRING_LENGTH (ret)) <= (ER_BUF_SIZE - 4) ) ) { format[0] = '&'; strncpy (&format[1], XSTRING_DATA (ret), idx); idx++; } else - continue; + goto try_next; cell = Fcdr (cell); ret = Fcar (cell); @@ -3415,12 +3452,15 @@ char_encode_as_entity_reference (Emchar ch, char* buf) { format[idx++] = '%'; format_columns = XINT (ret); - if ( (2 <= format_columns) && (format_columns <= 8) ) + if ( (2 <= format_columns) && (format_columns <= 8) + && (idx + format_columns <= ER_BUF_SIZE - 1) ) { format [idx++] = '0'; format [idx++] = '0' + format_columns; } } + else + goto try_next; cell = Fcdr (cell); ret = Fcar (cell); @@ -3431,7 +3471,7 @@ char_encode_as_entity_reference (Emchar ch, char* buf) else if (EQ (ret, QX)) format [idx++] = 'X'; else - continue; + goto try_next; format [idx++] = ';'; format [idx++] = 0; @@ -3439,6 +3479,7 @@ char_encode_as_entity_reference (Emchar ch, char* buf) return; } } + try_next: rest = Fcdr (rest); } sprintf (buf, "&MCS-%08X;", ch); @@ -3448,7 +3489,7 @@ char_encode_as_entity_reference (Emchar ch, char* buf) /************************************************************************/ /* character composition */ /************************************************************************/ -extern Lisp_Object Qcomposition; +extern Lisp_Object Qcomposition, Qrep_decomposition; INLINE_HEADER void COMPOSE_FLUSH_CHARS (struct decoding_stream *str, unsigned_char_dynarr* dst); @@ -3474,7 +3515,8 @@ COMPOSE_ADD_CHAR (struct decoding_stream *str, else if (!CONSP (str->combining_table)) { Lisp_Object ret - = Fget_char_attribute (make_char (character), Qcomposition, Qnil); + = Fchar_feature (make_char (character), Qcomposition, Qnil, + Qnil, Qnil); if (NILP (ret)) decode_add_er_char (str, character, dst); @@ -3493,7 +3535,8 @@ COMPOSE_ADD_CHAR (struct decoding_stream *str, if (CHARP (ret)) { Emchar char2 = XCHARVAL (ret); - Lisp_Object ret2 = Fget_char_attribute (ret, Qcomposition, Qnil); + Lisp_Object ret2 = Fchar_feature (ret, Qcomposition, Qnil, + Qnil, Qnil); if (NILP (ret2)) { @@ -3510,8 +3553,8 @@ COMPOSE_ADD_CHAR (struct decoding_stream *str, } else { - ret = Fget_char_attribute (make_char (character), Qcomposition, - Qnil); + ret = Fchar_feature (make_char (character), Qcomposition, Qnil, + Qnil, Qnil); COMPOSE_FLUSH_CHARS (str, dst); if (NILP (ret)) @@ -3950,10 +3993,11 @@ decode_coding_big5 (Lstream *decoding, const Extbyte *src, { #ifdef UTF2000 int code_point = (cpos << 8) | c; - Emchar char_id = decode_defined_char (ccs, code_point); + Emchar char_id = decode_defined_char (ccs, code_point, 0); if (char_id < 0) - char_id = DECODE_CHAR (Vcharset_chinese_big5, code_point); + char_id + = DECODE_CHAR (Vcharset_chinese_big5, code_point, 0); DECODE_ADD_UCS_CHAR (char_id, dst); #else unsigned char b1, b2, b3; @@ -4475,6 +4519,7 @@ decode_coding_utf8 (Lstream *decoding, const Extbyte *src, eol_type_t eol_type = str->eol_type; unsigned char counter = str->counter; #ifdef UTF2000 + int bom_flag = str->bom_flag; Lisp_Object ccs = CODING_SYSTEM_ISO2022_INITIAL_CHARSET (DECODING_STREAM_DATA (decoding)->codesys, 0); @@ -4490,11 +4535,20 @@ decode_coding_utf8 (Lstream *decoding, const Extbyte *src, COMPOSE_FLUSH_CHARS (str, dst); decode_flush_er_chars (str, dst); DECODE_HANDLE_EOL_TYPE (eol_type, c, flags, dst); + + if ( bom_flag == 0 ) + bom_flag = -1; + DECODE_ADD_UCS_CHAR (c, dst); } else if ( c < 0xC0 ) - /* decode_add_er_char (str, c, dst); */ - COMPOSE_ADD_CHAR (str, c, dst); + { + if ( bom_flag == 0 ) + bom_flag = -1; + + /* decode_add_er_char (str, c, dst); */ + COMPOSE_ADD_CHAR (str, c, dst); + } else { /* decode_flush_er_chars (str, dst); */ @@ -4532,16 +4586,28 @@ decode_coding_utf8 (Lstream *decoding, const Extbyte *src, { Emchar char_id; + if ( bom_flag == 0 ) + { + if ( cpos == 0xFEFF ) + { + bom_flag = 1; + goto decoded; + } + else + bom_flag = -1; + } + if (!NILP (ccs)) { - char_id = decode_defined_char (ccs, cpos); + char_id = decode_defined_char (ccs, cpos, 0); if (char_id < 0) char_id = cpos; } else - ccs = char_id; + char_id = cpos; COMPOSE_ADD_CHAR (str, char_id, dst); + decoded: cpos = 0; counter = 0; } @@ -4574,6 +4640,9 @@ decode_coding_utf8 (Lstream *decoding, const Extbyte *src, str->flags = flags; str->cpos = cpos; str->counter = counter; +#ifdef UTF2000 + str->bom_flag = bom_flag; +#endif } void @@ -4599,21 +4668,56 @@ char_encode_utf8 (struct encoding_stream *str, Emchar ch, = CODING_SYSTEM_ISO2022_INITIAL_CHARSET (str->codesys, 0); int code_point = charset_code_point (ucs_ccs, ch, 0); - if ( (code_point < 0) || (code_point > 0x10FFFF) ) + if ( (code_point < 0) || (code_point > 0xEFFFF) ) { - Lisp_Object map - = CODING_SYSTEM_ISO2022_INITIAL_CHARSET (str->codesys, 1); - Lisp_Object ret; + Lisp_Object rest = Vdecomposition_feature_list; + Lisp_Object decomp_f; + Lisp_Object seq = Qnil; + Lisp_Object map, ret; + struct gcpro gcpro1; + + while ( CONSP (rest) ) + { + decomp_f = XCAR (rest); + GCPRO1 (rest); + seq = Fchar_feature (make_char (ch), decomp_f, Qnil, + Qnil, Qnil); + UNGCPRO; + if ( !NILP (seq) ) + break; + rest = XCDR (rest); + } + if ( CONSP (seq) ) + { + Lisp_Object base = Fcar (seq); + + seq = Fcdr (seq); + if ( CHARP (base) && CONSP (seq) ) + { + Lisp_Object comb = Fcar (seq); + + if ( CHARP (comb) ) + { + char_encode_utf8 (str, XCHAR (base), dst, flags); + char_encode_utf8 (str, XCHAR (comb), dst, flags); + return; + } + } + } + + map = CODING_SYSTEM_ISO2022_INITIAL_CHARSET (str->codesys, 1); if ( !NILP (map) - && INTP (ret = Fget_char_attribute (make_char (ch), - map, Qnil)) ) + && INTP (ret = Fchar_feature (make_char (ch), + map, Qnil, + Qnil, Qnil)) ) code_point = XINT (ret); else if ( !NILP (map = CODING_SYSTEM_ISO2022_INITIAL_CHARSET (str->codesys, 2)) - && INTP (ret = Fget_char_attribute (make_char (ch), - map, Qnil)) ) + && INTP (ret = Fchar_feature (make_char (ch), + map, Qnil, + Qnil, Qnil)) ) code_point = XINT (ret); else if (CODING_SYSTEM_USE_ENTITY_REFERENCE (str->codesys)) { @@ -5695,7 +5799,7 @@ decode_coding_iso2022 (Lstream *decoding, const Extbyte *src, COMPOSE_ADD_CHAR (str, DECODE_CHAR (charset, ((cpos & 0x7F7F7F) << 8) - | (c & 0x7F)), + | (c & 0x7F), 0), dst); cpos = 0; counter = 0; @@ -5958,7 +6062,19 @@ char_encode_iso2022 (struct encoding_stream *str, Emchar ch, { Lisp_Object original_default_coded_charset_priority_list = Vdefault_coded_charset_priority_list; - + Vdefault_coded_charset_priority_list + = CODING_SYSTEM_CCS_PRIORITY_LIST (codesys); + while (!EQ (Vdefault_coded_charset_priority_list, Qnil)) + { + code_point = ENCODE_CHAR (ch, charset); + if (XCHARSET_FINAL (charset)) + goto found; + Vdefault_coded_charset_priority_list + = Fcdr (Fmemq (XCHARSET_NAME (charset), + Vdefault_coded_charset_priority_list)); + } + Vdefault_coded_charset_priority_list + = original_default_coded_charset_priority_list; while (!EQ (Vdefault_coded_charset_priority_list, Qnil)) { code_point = ENCODE_CHAR (ch, charset); @@ -6335,6 +6451,7 @@ syms_of_file_coding (void) #ifdef UTF2000 defsymbol (&Qutf_8_mcs, "utf-8-mcs"); defsymbol (&Qdisable_composition, "disable-composition"); + defsymbol (&Qccs_priority_list, "ccs-priority-list"); defsymbol (&Quse_entity_reference, "use-entity-reference"); defsymbol (&Qd, "d"); defsymbol (&Qx, "x"); @@ -6463,6 +6580,14 @@ and behaviors of various editing commands. Setting this to nil does not do anything. */ ); enable_multibyte_characters = 1; + +#ifdef UTF2000 + DEFVAR_LISP ("decomposition-feature-list", + &Vdecomposition_feature_list /* +List of `=decomposition@FOO' feature to encode characters as IVS. +*/ ); + Vdecomposition_feature_list = Qnil; +#endif } void @@ -6508,6 +6633,9 @@ complex_vars_of_file_coding (void) DEFINE_CODESYS_PROP (CODESYS_PROP_ISO2022, Qescape_quoted); DEFINE_CODESYS_PROP (CODESYS_PROP_ISO2022, Qinput_charset_conversion); DEFINE_CODESYS_PROP (CODESYS_PROP_ISO2022, Qoutput_charset_conversion); +#ifdef UTF2000 + DEFINE_CODESYS_PROP (CODESYS_PROP_ISO2022, Qccs_priority_list); +#endif DEFINE_CODESYS_PROP (CODESYS_PROP_CCL, Qencode); DEFINE_CODESYS_PROP (CODESYS_PROP_CCL, Qdecode);