#include "elhash.h"
#include "insdel.h"
#include "lstream.h"
+#include "opaque.h"
#ifdef MULE
#include "mule-ccl.h"
#include "chartab.h"
Lisp_Object Vfile_name_coding_system;
/* Table of symbols identifying each coding category. */
-Lisp_Object coding_category_symbol[CODING_CATEGORY_LAST + 1];
+Lisp_Object coding_category_symbol[CODING_CATEGORY_LAST];
struct file_coding_dump {
/* Coding system currently associated with each coding category. */
- Lisp_Object coding_category_system[CODING_CATEGORY_LAST + 1];
+ Lisp_Object coding_category_system[CODING_CATEGORY_LAST];
/* Table of all coding categories in decreasing order of priority.
This describes a permutation of the possible coding categories. */
- int coding_category_by_priority[CODING_CATEGORY_LAST + 1];
+ int coding_category_by_priority[CODING_CATEGORY_LAST];
+#if defined(MULE) && !defined(UTF2000)
Lisp_Object ucs_to_mule_table[65536];
+#endif
} *fcd;
static const struct lrecord_description fcd_description_1[] = {
- { XD_LISP_OBJECT, offsetof(struct file_coding_dump, coding_category_system), CODING_CATEGORY_LAST + 1 },
- { XD_LISP_OBJECT, offsetof(struct file_coding_dump, ucs_to_mule_table), 65536 },
+ { XD_LISP_OBJECT_ARRAY, offsetof (struct file_coding_dump, coding_category_system), CODING_CATEGORY_LAST },
+#if defined(MULE) && !defined(UTF2000)
+ { XD_LISP_OBJECT_ARRAY, offsetof (struct file_coding_dump, ucs_to_mule_table), countof (fcd->ucs_to_mule_table) },
+#endif
{ XD_END }
};
static const struct struct_description fcd_description = {
- sizeof(struct file_coding_dump),
+ sizeof (struct file_coding_dump),
fcd_description_1
};
Lisp_Object Qforce_g2_on_output, Qforce_g3_on_output;
Lisp_Object Qno_iso6429;
Lisp_Object Qinput_charset_conversion, Qoutput_charset_conversion;
-Lisp_Object Qctext, Qescape_quoted;
+Lisp_Object Qescape_quoted;
Lisp_Object Qshort, Qno_ascii_eol, Qno_ascii_cntl, Qseven, Qlock_shift;
#endif
Lisp_Object Qencode, Qdecode;
#ifdef MULE
struct detection_state;
static int detect_coding_sjis (struct detection_state *st,
- CONST unsigned char *src,
- unsigned int n);
-static void decode_coding_sjis (Lstream *decoding,
- CONST unsigned char *src,
- unsigned_char_dynarr *dst,
- unsigned int n);
-static void encode_coding_sjis (Lstream *encoding,
- CONST unsigned char *src,
- unsigned_char_dynarr *dst,
- unsigned int n);
+ const Extbyte *src, Lstream_data_count n);
+static void decode_coding_sjis (Lstream *decoding, const Extbyte *src,
+ unsigned_char_dynarr *dst, Lstream_data_count n);
+static void encode_coding_sjis (Lstream *encoding, const Bufbyte *src,
+ unsigned_char_dynarr *dst, Lstream_data_count n);
static int detect_coding_big5 (struct detection_state *st,
- CONST unsigned char *src,
- unsigned int n);
-static void decode_coding_big5 (Lstream *decoding,
- CONST unsigned char *src,
- unsigned_char_dynarr *dst, unsigned int n);
-static void encode_coding_big5 (Lstream *encoding,
- CONST unsigned char *src,
- unsigned_char_dynarr *dst, unsigned int n);
+ const Extbyte *src, Lstream_data_count n);
+static void decode_coding_big5 (Lstream *decoding, const Extbyte *src,
+ unsigned_char_dynarr *dst, Lstream_data_count n);
+static void encode_coding_big5 (Lstream *encoding, const Bufbyte *src,
+ unsigned_char_dynarr *dst, Lstream_data_count n);
static int detect_coding_ucs4 (struct detection_state *st,
- CONST unsigned char *src,
- unsigned int n);
-static void decode_coding_ucs4 (Lstream *decoding,
- CONST unsigned char *src,
- unsigned_char_dynarr *dst, unsigned int n);
-static void encode_coding_ucs4 (Lstream *encoding,
- CONST unsigned char *src,
- unsigned_char_dynarr *dst, unsigned int n);
+ const Extbyte *src, Lstream_data_count n);
+static void decode_coding_ucs4 (Lstream *decoding, const Extbyte *src,
+ unsigned_char_dynarr *dst, Lstream_data_count n);
+static void encode_coding_ucs4 (Lstream *encoding, const Bufbyte *src,
+ unsigned_char_dynarr *dst, Lstream_data_count n);
static int detect_coding_utf8 (struct detection_state *st,
- CONST unsigned char *src,
- unsigned int n);
-static void decode_coding_utf8 (Lstream *decoding,
- CONST unsigned char *src,
- unsigned_char_dynarr *dst, unsigned int n);
-static void encode_coding_utf8 (Lstream *encoding,
- CONST unsigned char *src,
- unsigned_char_dynarr *dst, unsigned int n);
+ const Extbyte *src, Lstream_data_count n);
+static void decode_coding_utf8 (Lstream *decoding, const Extbyte *src,
+ unsigned_char_dynarr *dst, Lstream_data_count n);
+static void encode_coding_utf8 (Lstream *encoding, const Bufbyte *src,
+ unsigned_char_dynarr *dst, Lstream_data_count n);
static int postprocess_iso2022_mask (int mask);
static void reset_iso2022 (Lisp_Object coding_system,
struct iso2022_decoder *iso);
static int detect_coding_iso2022 (struct detection_state *st,
- CONST unsigned char *src,
- unsigned int n);
-static void decode_coding_iso2022 (Lstream *decoding,
- CONST unsigned char *src,
- unsigned_char_dynarr *dst, unsigned int n);
-static void encode_coding_iso2022 (Lstream *encoding,
- CONST unsigned char *src,
- unsigned_char_dynarr *dst, unsigned int n);
+ const Extbyte *src, Lstream_data_count n);
+static void decode_coding_iso2022 (Lstream *decoding, const Extbyte *src,
+ unsigned_char_dynarr *dst, Lstream_data_count n);
+static void encode_coding_iso2022 (Lstream *encoding, const Bufbyte *src,
+ unsigned_char_dynarr *dst, Lstream_data_count n);
#endif /* MULE */
-static void decode_coding_no_conversion (Lstream *decoding,
- CONST unsigned char *src,
- unsigned_char_dynarr *dst,
- unsigned int n);
-static void encode_coding_no_conversion (Lstream *encoding,
- CONST unsigned char *src,
- unsigned_char_dynarr *dst,
- unsigned int n);
-static void mule_decode (Lstream *decoding, CONST unsigned char *src,
- unsigned_char_dynarr *dst, unsigned int n);
-static void mule_encode (Lstream *encoding, CONST unsigned char *src,
- unsigned_char_dynarr *dst, unsigned int n);
+static void decode_coding_no_conversion (Lstream *decoding, const Extbyte *src,
+ unsigned_char_dynarr *dst, Lstream_data_count n);
+static void encode_coding_no_conversion (Lstream *encoding, const Bufbyte *src,
+ unsigned_char_dynarr *dst, Lstream_data_count n);
+static void mule_decode (Lstream *decoding, const Extbyte *src,
+ unsigned_char_dynarr *dst, Lstream_data_count n);
+static void mule_encode (Lstream *encoding, const Bufbyte *src,
+ unsigned_char_dynarr *dst, Lstream_data_count n);
typedef struct codesys_prop codesys_prop;
struct codesys_prop
} codesys_prop_dynarr;
static const struct lrecord_description codesys_prop_description_1[] = {
- { XD_LISP_OBJECT, offsetof(codesys_prop, sym), 1 },
+ { XD_LISP_OBJECT, offsetof (codesys_prop, sym) },
{ XD_END }
};
static const struct struct_description codesys_prop_description = {
- sizeof(codesys_prop),
+ sizeof (codesys_prop),
codesys_prop_description_1
};
static const struct lrecord_description codesys_prop_dynarr_description_1[] = {
- XD_DYNARR_DESC(codesys_prop_dynarr, &codesys_prop_description),
+ XD_DYNARR_DESC (codesys_prop_dynarr, &codesys_prop_description),
{ XD_END }
};
static const struct struct_description codesys_prop_dynarr_description = {
- sizeof(codesys_prop_dynarr),
+ sizeof (codesys_prop_dynarr),
codesys_prop_dynarr_description_1
};
#ifdef MULE
static const struct lrecord_description ccs_description_1[] = {
- { XD_LISP_OBJECT, offsetof(charset_conversion_spec, from_charset), 2 },
+ { XD_LISP_OBJECT, offsetof (charset_conversion_spec, from_charset) },
+ { XD_LISP_OBJECT, offsetof (charset_conversion_spec, to_charset) },
{ XD_END }
};
static const struct struct_description ccs_description = {
- sizeof(charset_conversion_spec),
+ sizeof (charset_conversion_spec),
ccs_description_1
};
static const struct lrecord_description ccsd_description_1[] = {
- XD_DYNARR_DESC(charset_conversion_spec_dynarr, &ccs_description),
+ XD_DYNARR_DESC (charset_conversion_spec_dynarr, &ccs_description),
{ XD_END }
};
static const struct struct_description ccsd_description = {
- sizeof(charset_conversion_spec_dynarr),
+ sizeof (charset_conversion_spec_dynarr),
ccsd_description_1
};
#endif
static const struct lrecord_description coding_system_description[] = {
- { XD_LISP_OBJECT, offsetof(struct Lisp_Coding_System, name), 2 },
- { XD_LISP_OBJECT, offsetof(struct Lisp_Coding_System, mnemonic), 3 },
- { XD_LISP_OBJECT, offsetof(struct Lisp_Coding_System, eol_lf), 3 },
+ { XD_LISP_OBJECT, offsetof (Lisp_Coding_System, name) },
+ { XD_LISP_OBJECT, offsetof (Lisp_Coding_System, doc_string) },
+ { XD_LISP_OBJECT, offsetof (Lisp_Coding_System, mnemonic) },
+ { XD_LISP_OBJECT, offsetof (Lisp_Coding_System, post_read_conversion) },
+ { XD_LISP_OBJECT, offsetof (Lisp_Coding_System, pre_write_conversion) },
+ { XD_LISP_OBJECT, offsetof (Lisp_Coding_System, eol_lf) },
+ { XD_LISP_OBJECT, offsetof (Lisp_Coding_System, eol_crlf) },
+ { XD_LISP_OBJECT, offsetof (Lisp_Coding_System, eol_cr) },
#ifdef MULE
- { XD_LISP_OBJECT, offsetof(struct Lisp_Coding_System, iso2022.initial_charset), 4 },
- { XD_STRUCT_PTR, offsetof(struct Lisp_Coding_System, iso2022.input_conv), 1, &ccsd_description },
- { XD_STRUCT_PTR, offsetof(struct Lisp_Coding_System, iso2022.output_conv), 1, &ccsd_description },
- { XD_LISP_OBJECT, offsetof(struct Lisp_Coding_System, ccl.decode), 2 },
+ { XD_LISP_OBJECT_ARRAY, offsetof (Lisp_Coding_System, iso2022.initial_charset), 4 },
+ { XD_STRUCT_PTR, offsetof (Lisp_Coding_System, iso2022.input_conv), 1, &ccsd_description },
+ { XD_STRUCT_PTR, offsetof (Lisp_Coding_System, iso2022.output_conv), 1, &ccsd_description },
+ { XD_LISP_OBJECT, offsetof (Lisp_Coding_System, ccl.decode) },
+ { XD_LISP_OBJECT, offsetof (Lisp_Coding_System, ccl.encode) },
#endif
{ XD_END }
};
mark_coding_system, print_coding_system,
finalize_coding_system,
0, 0, coding_system_description,
- struct Lisp_Coding_System);
+ Lisp_Coding_System);
static Lisp_Object
mark_coding_system (Lisp_Object obj)
}
}
-static enum eol_type
+static eol_type_t
symbol_to_eol_type (Lisp_Object symbol)
{
CHECK_SYMBOL (symbol);
}
static Lisp_Object
-eol_type_to_symbol (enum eol_type type)
+eol_type_to_symbol (eol_type_t type)
{
switch (type)
{
- default: abort ();
+ default: ABORT ();
case EOL_LF: return Qlf;
case EOL_CRLF: return Qcrlf;
case EOL_CR: return Qcr;
*/
(coding_system_or_name))
{
- if (CODING_SYSTEMP (coding_system_or_name))
- return coding_system_or_name;
-
if (NILP (coding_system_or_name))
coding_system_or_name = Qbinary;
+ else if (CODING_SYSTEMP (coding_system_or_name))
+ return coding_system_or_name;
else
CHECK_SYMBOL (coding_system_or_name);
- return Fgethash (coding_system_or_name, Vcoding_system_hash_table, Qnil);
+ while (1)
+ {
+ coding_system_or_name =
+ Fgethash (coding_system_or_name, Vcoding_system_hash_table, Qnil);
+
+ if (CODING_SYSTEMP (coding_system_or_name) || NILP (coding_system_or_name))
+ return coding_system_or_name;
+ }
}
DEFUN ("get-coding-system", Fget_coding_system, 1, 1, 0, /*
JIS (the Japanese encoding commonly used for e-mail), EUC (the
standard Unix encoding for Japanese and other languages), and
Compound Text (the encoding used in X11). You can specify more
- specific information about the conversion with the FLAGS argument.
+ specific information about the conversion with the PROPS argument.
'big5
Big5 (the encoding commonly used for Taiwanese).
'ccl
'post-read-conversion
Function called after a file has been read in, to perform the
- decoding. Called with two arguments, BEG and END, denoting
+ decoding. Called with two arguments, START and END, denoting
a region of the current buffer to be decoded.
'pre-write-conversion
Function called before a file is written out, to perform the
- encoding. Called with two arguments, BEG and END, denoting
+ encoding. Called with two arguments, START and END, denoting
a region of the current buffer to be encoded.
(name, type, doc_string, props))
{
Lisp_Coding_System *codesys;
- Lisp_Object rest, key, value;
enum coding_system_type ty;
int need_to_setup_eol_systems = 1;
CHECK_STRING (doc_string);
CODING_SYSTEM_DOC_STRING (codesys) = doc_string;
- EXTERNAL_PROPERTY_LIST_LOOP (rest, key, value, props)
- {
- if (EQ (key, Qmnemonic))
- {
- if (!NILP (value))
- CHECK_STRING (value);
- CODING_SYSTEM_MNEMONIC (codesys) = value;
- }
+ {
+ EXTERNAL_PROPERTY_LIST_LOOP_3 (key, value, props)
+ {
+ if (EQ (key, Qmnemonic))
+ {
+ if (!NILP (value))
+ CHECK_STRING (value);
+ CODING_SYSTEM_MNEMONIC (codesys) = value;
+ }
- else if (EQ (key, Qeol_type))
- {
- need_to_setup_eol_systems = NILP (value);
- if (EQ (value, Qt))
- value = Qnil;
- CODING_SYSTEM_EOL_TYPE (codesys) = symbol_to_eol_type (value);
- }
+ else if (EQ (key, Qeol_type))
+ {
+ need_to_setup_eol_systems = NILP (value);
+ if (EQ (value, Qt))
+ value = Qnil;
+ CODING_SYSTEM_EOL_TYPE (codesys) = symbol_to_eol_type (value);
+ }
- else if (EQ (key, Qpost_read_conversion)) CODING_SYSTEM_POST_READ_CONVERSION (codesys) = value;
- else if (EQ (key, Qpre_write_conversion)) CODING_SYSTEM_PRE_WRITE_CONVERSION (codesys) = value;
+ else if (EQ (key, Qpost_read_conversion)) CODING_SYSTEM_POST_READ_CONVERSION (codesys) = value;
+ else if (EQ (key, Qpre_write_conversion)) CODING_SYSTEM_PRE_WRITE_CONVERSION (codesys) = value;
#ifdef MULE
- else if (ty == CODESYS_ISO2022)
- {
+ else if (ty == CODESYS_ISO2022)
+ {
#define FROB_INITIAL_CHARSET(charset_num) \
CODING_SYSTEM_ISO2022_INITIAL_CHARSET (codesys, charset_num) = \
((EQ (value, Qt) || EQ (value, Qnil)) ? value : Fget_charset (value))
- if (EQ (key, Qcharset_g0)) FROB_INITIAL_CHARSET (0);
- else if (EQ (key, Qcharset_g1)) FROB_INITIAL_CHARSET (1);
- else if (EQ (key, Qcharset_g2)) FROB_INITIAL_CHARSET (2);
- else if (EQ (key, Qcharset_g3)) FROB_INITIAL_CHARSET (3);
+ if (EQ (key, Qcharset_g0)) FROB_INITIAL_CHARSET (0);
+ else if (EQ (key, Qcharset_g1)) FROB_INITIAL_CHARSET (1);
+ else if (EQ (key, Qcharset_g2)) FROB_INITIAL_CHARSET (2);
+ else if (EQ (key, Qcharset_g3)) FROB_INITIAL_CHARSET (3);
#define FROB_FORCE_CHARSET(charset_num) \
CODING_SYSTEM_ISO2022_FORCE_CHARSET_ON_OUTPUT (codesys, charset_num) = !NILP (value)
- else if (EQ (key, Qforce_g0_on_output)) FROB_FORCE_CHARSET (0);
- else if (EQ (key, Qforce_g1_on_output)) FROB_FORCE_CHARSET (1);
- else if (EQ (key, Qforce_g2_on_output)) FROB_FORCE_CHARSET (2);
- else if (EQ (key, Qforce_g3_on_output)) FROB_FORCE_CHARSET (3);
+ else if (EQ (key, Qforce_g0_on_output)) FROB_FORCE_CHARSET (0);
+ else if (EQ (key, Qforce_g1_on_output)) FROB_FORCE_CHARSET (1);
+ else if (EQ (key, Qforce_g2_on_output)) FROB_FORCE_CHARSET (2);
+ else if (EQ (key, Qforce_g3_on_output)) FROB_FORCE_CHARSET (3);
#define FROB_BOOLEAN_PROPERTY(prop) \
CODING_SYSTEM_ISO2022_##prop (codesys) = !NILP (value)
- else if (EQ (key, Qshort)) FROB_BOOLEAN_PROPERTY (SHORT);
- else if (EQ (key, Qno_ascii_eol)) FROB_BOOLEAN_PROPERTY (NO_ASCII_EOL);
- else if (EQ (key, Qno_ascii_cntl)) FROB_BOOLEAN_PROPERTY (NO_ASCII_CNTL);
- else if (EQ (key, Qseven)) FROB_BOOLEAN_PROPERTY (SEVEN);
- else if (EQ (key, Qlock_shift)) FROB_BOOLEAN_PROPERTY (LOCK_SHIFT);
- else if (EQ (key, Qno_iso6429)) FROB_BOOLEAN_PROPERTY (NO_ISO6429);
- else if (EQ (key, Qescape_quoted)) FROB_BOOLEAN_PROPERTY (ESCAPE_QUOTED);
+ else if (EQ (key, Qshort)) FROB_BOOLEAN_PROPERTY (SHORT);
+ else if (EQ (key, Qno_ascii_eol)) FROB_BOOLEAN_PROPERTY (NO_ASCII_EOL);
+ else if (EQ (key, Qno_ascii_cntl)) FROB_BOOLEAN_PROPERTY (NO_ASCII_CNTL);
+ else if (EQ (key, Qseven)) FROB_BOOLEAN_PROPERTY (SEVEN);
+ else if (EQ (key, Qlock_shift)) FROB_BOOLEAN_PROPERTY (LOCK_SHIFT);
+ else if (EQ (key, Qno_iso6429)) FROB_BOOLEAN_PROPERTY (NO_ISO6429);
+ else if (EQ (key, Qescape_quoted)) FROB_BOOLEAN_PROPERTY (ESCAPE_QUOTED);
+
+ else if (EQ (key, Qinput_charset_conversion))
+ {
+ codesys->iso2022.input_conv =
+ Dynarr_new (charset_conversion_spec);
+ parse_charset_conversion_specs (codesys->iso2022.input_conv,
+ value);
+ }
+ else if (EQ (key, Qoutput_charset_conversion))
+ {
+ codesys->iso2022.output_conv =
+ Dynarr_new (charset_conversion_spec);
+ parse_charset_conversion_specs (codesys->iso2022.output_conv,
+ value);
+ }
+ else
+ signal_simple_error ("Unrecognized property", key);
+ }
+ else if (EQ (type, Qccl))
+ {
+ Lisp_Object sym;
+ struct ccl_program test_ccl;
+ Extbyte *suffix;
+
+ /* Check key first. */
+ if (EQ (key, Qdecode))
+ suffix = "-ccl-decode";
+ else if (EQ (key, Qencode))
+ suffix = "-ccl-encode";
+ else
+ signal_simple_error ("Unrecognized property", key);
+
+ /* If value is vector, register it as a ccl program
+ associated with an newly created symbol for
+ backward compatibility. */
+ if (VECTORP (value))
+ {
+ sym = Fintern (concat2 (Fsymbol_name (name),
+ build_string (suffix)),
+ Qnil);
+ Fregister_ccl_program (sym, value);
+ }
+ else
+ {
+ CHECK_SYMBOL (value);
+ sym = value;
+ }
+ /* check if the given ccl programs are valid. */
+ if (setup_ccl_program (&test_ccl, sym) < 0)
+ signal_simple_error ("Invalid CCL program", value);
+
+ if (EQ (key, Qdecode))
+ CODING_SYSTEM_CCL_DECODE (codesys) = sym;
+ else if (EQ (key, Qencode))
+ CODING_SYSTEM_CCL_ENCODE (codesys) = sym;
- else if (EQ (key, Qinput_charset_conversion))
- {
- codesys->iso2022.input_conv =
- Dynarr_new (charset_conversion_spec);
- parse_charset_conversion_specs (codesys->iso2022.input_conv,
- value);
- }
- else if (EQ (key, Qoutput_charset_conversion))
- {
- codesys->iso2022.output_conv =
- Dynarr_new (charset_conversion_spec);
- parse_charset_conversion_specs (codesys->iso2022.output_conv,
- value);
- }
- else
- signal_simple_error ("Unrecognized property", key);
- }
- else if (EQ (type, Qccl))
- {
- if (EQ (key, Qdecode))
- {
- CHECK_VECTOR (value);
- CODING_SYSTEM_CCL_DECODE (codesys) = value;
- }
- else if (EQ (key, Qencode))
- {
- CHECK_VECTOR (value);
- CODING_SYSTEM_CCL_ENCODE (codesys) = value;
- }
- else
- signal_simple_error ("Unrecognized property", key);
- }
+ }
#endif /* MULE */
- else
- signal_simple_error ("Unrecognized property", key);
- }
+ else
+ signal_simple_error ("Unrecognized property", key);
+ }
+ }
if (need_to_setup_eol_systems)
setup_eol_coding_systems (codesys);
return new_coding_system;
}
+DEFUN ("coding-system-canonical-name-p", Fcoding_system_canonical_name_p, 1, 1, 0, /*
+Return t if OBJECT names a coding system, and is not a coding system alias.
+*/
+ (object))
+{
+ return CODING_SYSTEMP (Fgethash (object, Vcoding_system_hash_table, Qnil))
+ ? Qt : Qnil;
+}
+
+DEFUN ("coding-system-alias-p", Fcoding_system_alias_p, 1, 1, 0, /*
+Return t if OBJECT is a coding system alias.
+All coding system aliases are created by `define-coding-system-alias'.
+*/
+ (object))
+{
+ return SYMBOLP (Fgethash (object, Vcoding_system_hash_table, Qzero))
+ ? Qt : Qnil;
+}
+
+DEFUN ("coding-system-aliasee", Fcoding_system_aliasee, 1, 1, 0, /*
+Return the coding-system symbol for which symbol ALIAS is an alias.
+*/
+ (alias))
+{
+ Lisp_Object aliasee = Fgethash (alias, Vcoding_system_hash_table, Qnil);
+ if (SYMBOLP (aliasee))
+ return aliasee;
+ else
+ signal_simple_error ("Symbol is not a coding system alias", alias);
+ return Qnil; /* To keep the compiler happy */
+}
+
+static Lisp_Object
+append_suffix_to_symbol (Lisp_Object symbol, const char *ascii_string)
+{
+ return Fintern (concat2 (Fsymbol_name (symbol), build_string (ascii_string)),
+ Qnil);
+}
+
+/* A maphash function, for removing dangling coding system aliases. */
+static int
+dangling_coding_system_alias_p (Lisp_Object alias,
+ Lisp_Object aliasee,
+ void *dangling_aliases)
+{
+ if (SYMBOLP (aliasee)
+ && NILP (Fgethash (aliasee, Vcoding_system_hash_table, Qnil)))
+ {
+ (*(int *) dangling_aliases)++;
+ return 1;
+ }
+ else
+ return 0;
+}
+
DEFUN ("define-coding-system-alias", Fdefine_coding_system_alias, 2, 2, 0, /*
-Define symbol ALIAS as an alias for coding system CODING-SYSTEM.
+Define symbol ALIAS as an alias for coding system ALIASEE.
+
+You can use this function to redefine an alias that has already been defined,
+but you cannot redefine a name which is the canonical name for a coding system.
+\(a canonical name of a coding system is what is returned when you call
+`coding-system-name' on a coding system).
+
+ALIASEE itself can be an alias, which allows you to define nested aliases.
+
+You are forbidden, however, from creating alias loops or `dangling' aliases.
+These will be detected, and an error will be signaled if you attempt to do so.
+
+If ALIASEE is nil, then ALIAS will simply be undefined.
+
+See also `coding-system-alias-p', `coding-system-aliasee',
+and `coding-system-canonical-name-p'.
*/
- (alias, coding_system))
+ (alias, aliasee))
{
+ Lisp_Object real_coding_system, probe;
+
CHECK_SYMBOL (alias);
- if (!NILP (Ffind_coding_system (alias)))
- signal_simple_error ("Symbol already names a coding system", alias);
- coding_system = Fget_coding_system (coding_system);
- Fputhash (alias, coding_system, Vcoding_system_hash_table);
- /* Set up aliases for subsidiaries. */
- if (XCODING_SYSTEM_EOL_TYPE (coding_system) == EOL_AUTODETECT)
+ if (!NILP (Fcoding_system_canonical_name_p (alias)))
+ signal_simple_error
+ ("Symbol is the canonical name of a coding system and cannot be redefined",
+ alias);
+
+ if (NILP (aliasee))
+ {
+ Lisp_Object subsidiary_unix = append_suffix_to_symbol (alias, "-unix");
+ Lisp_Object subsidiary_dos = append_suffix_to_symbol (alias, "-dos");
+ Lisp_Object subsidiary_mac = append_suffix_to_symbol (alias, "-mac");
+
+ Fremhash (alias, Vcoding_system_hash_table);
+
+ /* Undefine subsidiary aliases,
+ presumably created by a previous call to this function */
+ if (! NILP (Fcoding_system_alias_p (subsidiary_unix)) &&
+ ! NILP (Fcoding_system_alias_p (subsidiary_dos)) &&
+ ! NILP (Fcoding_system_alias_p (subsidiary_mac)))
+ {
+ Fdefine_coding_system_alias (subsidiary_unix, Qnil);
+ Fdefine_coding_system_alias (subsidiary_dos, Qnil);
+ Fdefine_coding_system_alias (subsidiary_mac, Qnil);
+ }
+
+ /* Undefine dangling coding system aliases. */
+ {
+ int dangling_aliases;
+
+ do {
+ dangling_aliases = 0;
+ elisp_map_remhash (dangling_coding_system_alias_p,
+ Vcoding_system_hash_table,
+ &dangling_aliases);
+ } while (dangling_aliases > 0);
+ }
+
+ return Qnil;
+ }
+
+ if (CODING_SYSTEMP (aliasee))
+ aliasee = XCODING_SYSTEM_NAME (aliasee);
+
+ /* Checks that aliasee names a coding-system */
+ real_coding_system = Fget_coding_system (aliasee);
+
+ /* Check for coding system alias loops */
+ if (EQ (alias, aliasee))
+ alias_loop: signal_simple_error_2
+ ("Attempt to create a coding system alias loop", alias, aliasee);
+
+ for (probe = aliasee;
+ SYMBOLP (probe);
+ probe = Fgethash (probe, Vcoding_system_hash_table, Qzero))
{
- Lisp_Object str;
- XSETSTRING (str, symbol_name (XSYMBOL (alias)));
-#define FROB(type, name) \
- do { \
- Lisp_Object subsidiary = XCODING_SYSTEM_EOL_##type (coding_system); \
- if (!NILP (subsidiary)) \
- Fdefine_coding_system_alias \
- (Fintern (concat2 (str, build_string (name)), Qnil), subsidiary); \
- } while (0)
- FROB (LF, "-unix");
- FROB (CRLF, "-dos");
- FROB (CR, "-mac");
-#undef FROB
+ if (EQ (probe, alias))
+ goto alias_loop;
}
+
+ Fputhash (alias, aliasee, Vcoding_system_hash_table);
+
+ /* Set up aliases for subsidiaries.
+ #### There must be a better way to handle subsidiary coding systems. */
+ {
+ static const char *suffixes[] = { "-unix", "-dos", "-mac" };
+ int i;
+ for (i = 0; i < countof (suffixes); i++)
+ {
+ Lisp_Object alias_subsidiary =
+ append_suffix_to_symbol (alias, suffixes[i]);
+ Lisp_Object aliasee_subsidiary =
+ append_suffix_to_symbol (aliasee, suffixes[i]);
+
+ if (! NILP (Ffind_coding_system (aliasee_subsidiary)))
+ Fdefine_coding_system_alias (alias_subsidiary, aliasee_subsidiary);
+ }
+ }
/* FSF return value is a vector of [ALIAS-unix ALIAS-dos ALIAS-mac],
but it doesn't look intentional, so I'd rather return something
meaningful or nothing at all. */
}
static Lisp_Object
-subsidiary_coding_system (Lisp_Object coding_system, enum eol_type type)
+subsidiary_coding_system (Lisp_Object coding_system, eol_type_t type)
{
Lisp_Coding_System *cs = XCODING_SYSTEM (coding_system);
Lisp_Object new_coding_system;
case EOL_LF: new_coding_system = CODING_SYSTEM_EOL_LF (cs); break;
case EOL_CR: new_coding_system = CODING_SYSTEM_EOL_CR (cs); break;
case EOL_CRLF: new_coding_system = CODING_SYSTEM_EOL_CRLF (cs); break;
- default: abort ();
+ default: ABORT (); return Qnil;
}
return NILP (new_coding_system) ? coding_system : new_coding_system;
{
switch (XCODING_SYSTEM_TYPE (Fget_coding_system (coding_system)))
{
- default: abort ();
+ default: ABORT ();
case CODESYS_AUTODETECT: return Qundecided;
#ifdef MULE
case CODESYS_SHIFT_JIS: return Qshift_jis;
break;
#endif /* MULE */
default:
- abort ();
+ ABORT ();
}
}
unparse_charset_conversion_specs
(XCODING_SYSTEM (coding_system)->iso2022.output_conv);
else
- abort ();
+ ABORT ();
}
else if (type == CODESYS_CCL)
{
else if (EQ (prop, Qencode))
return XCODING_SYSTEM_CCL_ENCODE (coding_system);
else
- abort ();
+ ABORT ();
}
#endif /* MULE */
else
- abort ();
+ ABORT ();
return Qnil; /* not reached */
}
int i;
CHECK_SYMBOL (symbol);
- for (i = 0; i <= CODING_CATEGORY_LAST; i++)
+ for (i = 0; i < CODING_CATEGORY_LAST; i++)
if (EQ (coding_category_symbol[i], symbol))
return i;
int i;
Lisp_Object list = Qnil;
- for (i = CODING_CATEGORY_LAST; i >= 0; i--)
+ for (i = CODING_CATEGORY_LAST - 1; i >= 0; i--)
list = Fcons (coding_category_symbol[i], list);
return list;
}
*/
(list))
{
- int category_to_priority[CODING_CATEGORY_LAST + 1];
+ int category_to_priority[CODING_CATEGORY_LAST];
int i, j;
Lisp_Object rest;
/* First generate a list that maps coding categories to priorities. */
- for (i = 0; i <= CODING_CATEGORY_LAST; i++)
+ for (i = 0; i < CODING_CATEGORY_LAST; i++)
category_to_priority[i] = -1;
/* Highest priority comes from the specified list. */
/* Now go through the existing categories by priority to retrieve
the categories not yet specified and preserve their priority
order. */
- for (j = 0; j <= CODING_CATEGORY_LAST; j++)
+ for (j = 0; j < CODING_CATEGORY_LAST; j++)
{
int cat = fcd->coding_category_by_priority[j];
if (category_to_priority[cat] < 0)
/* Now we need to construct the inverse of the mapping we just
constructed. */
- for (i = 0; i <= CODING_CATEGORY_LAST; i++)
+ for (i = 0; i < CODING_CATEGORY_LAST; i++)
fcd->coding_category_by_priority[category_to_priority[i]] = i;
/* Phew! That was confusing. */
int i;
Lisp_Object list = Qnil;
- for (i = CODING_CATEGORY_LAST; i >= 0; i--)
+ for (i = CODING_CATEGORY_LAST - 1; i >= 0; i--)
list = Fcons (coding_category_symbol[fcd->coding_category_by_priority[i]],
list);
return list;
struct detection_state
{
- enum eol_type eol_type;
+ eol_type_t eol_type;
int seen_non_ascii;
int mask;
#ifdef MULE
return (mask & (mask - 1)) == 0;
}
-static enum eol_type
-detect_eol_type (struct detection_state *st, CONST unsigned char *src,
- unsigned int n)
+static eol_type_t
+detect_eol_type (struct detection_state *st, const Extbyte *src,
+ Lstream_data_count n)
{
- int c;
-
while (n--)
{
- c = *src++;
+ unsigned char c = *(unsigned char *)src++;
if (c == '\n')
{
if (st->eol.just_saw_cr)
*/
static int
-detect_coding_type (struct detection_state *st, CONST Extbyte *src,
- unsigned int n, int just_do_eol)
+detect_coding_type (struct detection_state *st, const Extbyte *src,
+ Lstream_data_count n, int just_do_eol)
{
- int c;
-
if (st->eol_type == EOL_AUTODETECT)
st->eol_type = detect_eol_type (st, src, n);
{
for (; n; n--, src++)
{
- c = *src;
+ unsigned char c = *(unsigned char *) src;
if ((c < 0x20 && !acceptable_control_char_p (c)) || c >= 0x80)
{
st->seen_non_ascii = 1;
#endif
/* Look through the coding categories by priority and find
the first one that is allowed. */
- for (i = 0; i <= CODING_CATEGORY_LAST; i++)
+ for (i = 0; i < CODING_CATEGORY_LAST; i++)
{
cat = fcd->coding_category_by_priority[i];
if ((mask & (1 << cat)) &&
that should be unnecessary with the explicit eol-type argument. */
#define LENGTH(string_constant) (sizeof (string_constant) - 1)
+/* number of leading lines to check for a coding cookie */
+#define LINES_TO_CHECK 2
void
determine_real_coding_system (Lstream *stream, Lisp_Object *codesys_in_out,
- enum eol_type *eol_type_in_out)
+ eol_type_t *eol_type_in_out)
{
struct detection_state decst;
Extbyte buf[4096];
Lisp_Object coding_system = Qnil;
Extbyte *p;
- ssize_t nread = Lstream_read (stream, buf, sizeof (buf));
+ Lstream_data_count nread = Lstream_read (stream, buf, sizeof (buf));
Extbyte *scan_end;
+ int lines_checked = 0;
/* Look for initial "-*-"; mode line prefix */
for (p = buf,
scan_end = buf + nread - LENGTH ("-*-coding:?-*-");
p <= scan_end
- && *p != '\n'
- && *p != '\r';
+ && lines_checked < LINES_TO_CHECK;
p++)
if (*p == '-' && *(p+1) == '*' && *(p+2) == '-')
{
for (p = local_vars_beg,
scan_end = buf + nread - LENGTH ("-*-");
p <= scan_end
- && *p != '\n'
- && *p != '\r';
+ && lines_checked < LINES_TO_CHECK;
p++)
if (*p == '-' && *(p+1) == '*' && *(p+2) == '-')
{
}
break;
}
+ /* #### file must use standard EOLs or we miss 2d line */
+ /* #### not to mention this is broken for UTF-16 DOS files */
+ else if (*p == '\n' || *p == '\r')
+ {
+ lines_checked++;
+ /* skip past multibyte (DOS) newline */
+ if (*p == '\r' && *(p+1) == '\n') p++;
+ }
break;
}
+ /* #### file must use standard EOLs or we miss 2d line */
+ /* #### not to mention this is broken for UTF-16 DOS files */
+ else if (*p == '\n' || *p == '\r')
+ {
+ lines_checked++;
+ /* skip past multibyte (DOS) newline */
+ if (*p == '\r' && *(p+1) == '\n') p++;
+ }
if (NILP (coding_system))
do
DEFUN ("detect-coding-region", Fdetect_coding_region, 2, 3, 0, /*
Detect coding system of the text in the region between START and END.
-Returned a list of possible coding systems ordered by priority.
-If only ASCII characters are found, it returns 'undecided or one of
+Return a list of possible coding systems ordered by priority.
+If only ASCII characters are found, return 'undecided or one of
its subsidiary coding systems according to a detected end-of-line
type. Optional arg BUFFER defaults to the current buffer.
*/
decst.mask = ~0;
while (1)
{
- unsigned char random_buffer[4096];
- ssize_t nread = Lstream_read (istr, random_buffer, sizeof (random_buffer));
+ Extbyte random_buffer[4096];
+ Lstream_data_count nread = Lstream_read (istr, random_buffer, sizeof (random_buffer));
if (!nread)
break;
#ifdef MULE
decst.mask = postprocess_iso2022_mask (decst.mask);
#endif
- for (i = CODING_CATEGORY_LAST; i >= 0; i--)
+ for (i = CODING_CATEGORY_LAST - 1; i >= 0; i--)
{
int sys = fcd->coding_category_by_priority[i];
if (decst.mask & (1 << sys))
/* C should be a binary character in the range 0 - 255; convert
to internal format and add to Dynarr DST. */
+#ifdef UTF2000
+#define DECODE_ADD_BINARY_CHAR(c, dst) \
+do { \
+ if (BYTE_ASCII_P (c)) \
+ Dynarr_add (dst, c); \
+ else \
+ { \
+ Dynarr_add (dst, (c >> 6) | 0xc0); \
+ Dynarr_add (dst, (c & 0x3f) | 0x80); \
+ } \
+} while (0)
+
+INLINE void
+DECODE_ADD_UCS_CHAR(Emchar c, unsigned_char_dynarr* dst)
+{
+ if ( c <= 0x7f )
+ {
+ Dynarr_add (dst, c);
+ }
+ else if ( c <= 0x7ff )
+ {
+ Dynarr_add (dst, (c >> 6) | 0xc0);
+ Dynarr_add (dst, (c & 0x3f) | 0x80);
+ }
+ else if ( c <= 0xffff )
+ {
+ Dynarr_add (dst, (c >> 12) | 0xe0);
+ Dynarr_add (dst, ((c >> 6) & 0x3f) | 0x80);
+ Dynarr_add (dst, (c & 0x3f) | 0x80);
+ }
+ else if ( c <= 0x1fffff )
+ {
+ Dynarr_add (dst, (c >> 18) | 0xf0);
+ Dynarr_add (dst, ((c >> 12) & 0x3f) | 0x80);
+ Dynarr_add (dst, ((c >> 6) & 0x3f) | 0x80);
+ Dynarr_add (dst, (c & 0x3f) | 0x80);
+ }
+ else if ( c <= 0x3ffffff )
+ {
+ Dynarr_add (dst, (c >> 24) | 0xf8);
+ Dynarr_add (dst, ((c >> 18) & 0x3f) | 0x80);
+ Dynarr_add (dst, ((c >> 12) & 0x3f) | 0x80);
+ Dynarr_add (dst, ((c >> 6) & 0x3f) | 0x80);
+ Dynarr_add (dst, (c & 0x3f) | 0x80);
+ }
+ else
+ {
+ Dynarr_add (dst, (c >> 30) | 0xfc);
+ Dynarr_add (dst, ((c >> 24) & 0x3f) | 0x80);
+ Dynarr_add (dst, ((c >> 18) & 0x3f) | 0x80);
+ Dynarr_add (dst, ((c >> 12) & 0x3f) | 0x80);
+ Dynarr_add (dst, ((c >> 6) & 0x3f) | 0x80);
+ Dynarr_add (dst, (c & 0x3f) | 0x80);
+ }
+}
+#else
#define DECODE_ADD_BINARY_CHAR(c, dst) \
do { \
if (BYTE_ASCII_P (c)) \
Dynarr_add (dst, c); \
} \
} while (0)
+#endif
#define DECODE_OUTPUT_PARTIAL_CHAR(ch) \
do { \
EOL type stored in CODESYS because the latter might indicate
automatic EOL-type detection while the former will always
indicate a particular EOL type. */
- enum eol_type eol_type;
+ eol_type_t eol_type;
#ifdef MULE
/* Additional ISO2022 information. We define the structure above
because it's also needed by the detection routines. */
struct detection_state decst;
};
-static ssize_t decoding_reader (Lstream *stream,
- unsigned char *data, size_t size);
-static ssize_t decoding_writer (Lstream *stream,
- CONST unsigned char *data, size_t size);
+static Lstream_data_count decoding_reader (Lstream *stream,
+ unsigned char *data, Lstream_data_count size);
+static Lstream_data_count decoding_writer (Lstream *stream,
+ const unsigned char *data, Lstream_data_count size);
static int decoding_rewinder (Lstream *stream);
static int decoding_seekable_p (Lstream *stream);
static int decoding_flusher (Lstream *stream);
/* Read SIZE bytes of data and store it into DATA. We are a decoding stream
so we read data from the other end, decode it, and store it into DATA. */
-static ssize_t
-decoding_reader (Lstream *stream, unsigned char *data, size_t size)
+static Lstream_data_count
+decoding_reader (Lstream *stream, unsigned char *data, Lstream_data_count size)
{
struct decoding_stream *str = DECODING_STREAM_DATA (stream);
unsigned char *orig_data = data;
- ssize_t read_size;
+ Lstream_data_count read_size;
int error_occurred = 0;
/* We need to interface to mule_decode(), which expects to take some
most SIZE bytes, and delete the data from the runoff. */
if (Dynarr_length (str->runoff) > 0)
{
- size_t chunk = min (size, (size_t) Dynarr_length (str->runoff));
+ Lstream_data_count chunk = min (size, (Lstream_data_count) Dynarr_length (str->runoff));
memcpy (data, Dynarr_atp (str->runoff, 0), chunk);
Dynarr_delete_many (str->runoff, 0, chunk);
data += chunk;
/* There might be some more end data produced in the translation.
See the comment above. */
str->flags |= CODING_STATE_END;
- mule_decode (stream, data, str->runoff, read_size);
+ mule_decode (stream, (Extbyte *) data, str->runoff, read_size);
}
if (data - orig_data == 0)
return data - orig_data;
}
-static ssize_t
-decoding_writer (Lstream *stream, CONST unsigned char *data, size_t size)
+static Lstream_data_count
+decoding_writer (Lstream *stream, const unsigned char *data, Lstream_data_count size)
{
struct decoding_stream *str = DECODING_STREAM_DATA (stream);
- ssize_t retval;
+ Lstream_data_count retval;
/* Decode all our data into the runoff, and then attempt to write
it all out to the other end. Remove whatever chunk we succeeded
in writing. */
- mule_decode (stream, data, str->runoff, size);
+ mule_decode (stream, (Extbyte *) data, str->runoff, size);
retval = Lstream_write (str->other_end, Dynarr_atp (str->runoff, 0),
Dynarr_length (str->runoff));
if (retval > 0)
}
str->counter = 0;
#endif /* MULE */
+ if (CODING_SYSTEM_TYPE (str->codesys) == CODESYS_AUTODETECT
+ || CODING_SYSTEM_EOL_TYPE (str->codesys) == EOL_AUTODETECT)
+ {
+ xzero (str->decst);
+ str->decst.eol_type = EOL_AUTODETECT;
+ str->decst.mask = ~0;
+ }
str->flags = str->ch = 0;
}
static Lisp_Object
make_decoding_stream_1 (Lstream *stream, Lisp_Object codesys,
- CONST char *mode)
+ const char *mode)
{
Lstream *lstr = Lstream_new (lstream_decoding, mode);
struct decoding_stream *str = DECODING_STREAM_DATA (lstr);
be used for both reading and writing. */
static void
-mule_decode (Lstream *decoding, CONST unsigned char *src,
- unsigned_char_dynarr *dst, unsigned int n)
+mule_decode (Lstream *decoding, const Extbyte *src,
+ unsigned_char_dynarr *dst, Lstream_data_count n)
{
struct decoding_stream *str = DECODING_STREAM_DATA (decoding);
break;
case CODESYS_CCL:
str->ccl.last_block = str->flags & CODING_STATE_END;
- ccl_driver (&str->ccl, src, dst, n, 0, CCL_MODE_DECODING);
+ /* When applying ccl program to stream, MUST NOT set NULL
+ pointer to src. */
+ ccl_driver (&str->ccl, (src ? (unsigned char *)src : (unsigned char*)""),
+ dst, n, 0, CCL_MODE_DECODING);
break;
case CODESYS_ISO2022:
decode_coding_iso2022 (decoding, src, dst, n);
break;
#endif /* MULE */
default:
- abort ();
+ ABORT ();
}
}
char tempbuf[1024]; /* some random amount */
Bufpos newpos, even_newer_pos;
Bufpos oldpos = lisp_buffer_stream_startpos (istr);
- ssize_t size_in_bytes = Lstream_read (istr, tempbuf, sizeof (tempbuf));
+ Lstream_data_count size_in_bytes = Lstream_read (istr, tempbuf, sizeof (tempbuf));
if (!size_in_bytes)
break;
#endif /* MULE */
};
-static ssize_t encoding_reader (Lstream *stream, unsigned char *data, size_t size);
-static ssize_t encoding_writer (Lstream *stream, CONST unsigned char *data,
- size_t size);
+static Lstream_data_count encoding_reader (Lstream *stream, unsigned char *data, Lstream_data_count size);
+static Lstream_data_count encoding_writer (Lstream *stream, const unsigned char *data,
+ Lstream_data_count size);
static int encoding_rewinder (Lstream *stream);
static int encoding_seekable_p (Lstream *stream);
static int encoding_flusher (Lstream *stream);
/* Read SIZE bytes of data and store it into DATA. We are a encoding stream
so we read data from the other end, encode it, and store it into DATA. */
-static ssize_t
-encoding_reader (Lstream *stream, unsigned char *data, size_t size)
+static Lstream_data_count
+encoding_reader (Lstream *stream, unsigned char *data, Lstream_data_count size)
{
struct encoding_stream *str = ENCODING_STREAM_DATA (stream);
unsigned char *orig_data = data;
- ssize_t read_size;
+ Lstream_data_count read_size;
int error_occurred = 0;
/* We need to interface to mule_encode(), which expects to take some
return data - orig_data;
}
-static ssize_t
-encoding_writer (Lstream *stream, CONST unsigned char *data, size_t size)
+static Lstream_data_count
+encoding_writer (Lstream *stream, const unsigned char *data, Lstream_data_count size)
{
struct encoding_stream *str = ENCODING_STREAM_DATA (stream);
- ssize_t retval;
+ Lstream_data_count retval;
/* Encode all our data into the runoff, and then attempt to write
it all out to the other end. Remove whatever chunk we succeeded
str->iso2022.register_right = 1;
str->iso2022.current_charset = Qnil;
str->iso2022.current_half = 0;
+#ifdef UTF2000
+ str->iso2022.current_char_boundary = 0;
+#else
str->iso2022.current_char_boundary = 1;
+#endif
break;
}
case CODESYS_CCL:
static Lisp_Object
make_encoding_stream_1 (Lstream *stream, Lisp_Object codesys,
- CONST char *mode)
+ const char *mode)
{
Lstream *lstr = Lstream_new (lstream_encoding, mode);
struct encoding_stream *str = ENCODING_STREAM_DATA (lstr);
Store the encoded data into DST. */
static void
-mule_encode (Lstream *encoding, CONST unsigned char *src,
- unsigned_char_dynarr *dst, unsigned int n)
+mule_encode (Lstream *encoding, const Bufbyte *src,
+ unsigned_char_dynarr *dst, Lstream_data_count n)
{
struct encoding_stream *str = ENCODING_STREAM_DATA (encoding);
break;
case CODESYS_CCL:
str->ccl.last_block = str->flags & CODING_STATE_END;
- ccl_driver (&str->ccl, src, dst, n, 0, CCL_MODE_ENCODING);
+ /* When applying ccl program to stream, MUST NOT set NULL
+ pointer to src. */
+ ccl_driver (&str->ccl, ((src) ? src : (unsigned char*)""),
+ dst, n, 0, CCL_MODE_ENCODING);
break;
case CODESYS_ISO2022:
encode_coding_iso2022 (encoding, src, dst, n);
break;
#endif /* MULE */
default:
- abort ();
+ ABORT ();
}
}
char tempbuf[1024]; /* some random amount */
Bufpos newpos, even_newer_pos;
Bufpos oldpos = lisp_buffer_stream_startpos (istr);
- ssize_t size_in_bytes = Lstream_read (istr, tempbuf, sizeof (tempbuf));
+ Lstream_data_count size_in_bytes = Lstream_read (istr, tempbuf, sizeof (tempbuf));
if (!size_in_bytes)
break;
((c) >= 0xA1 && (c) <= 0xDF)
static int
-detect_coding_sjis (struct detection_state *st, CONST unsigned char *src,
- unsigned int n)
+detect_coding_sjis (struct detection_state *st, const Extbyte *src, Lstream_data_count n)
{
- int c;
-
while (n--)
{
- c = *src++;
+ unsigned char c = *(unsigned char *)src++;
if (c == ISO_CODE_ESC || c == ISO_CODE_SI || c == ISO_CODE_SO)
return 0;
if (st->shift_jis.in_second_byte)
/* Convert Shift-JIS data to internal format. */
static void
-decode_coding_sjis (Lstream *decoding, CONST unsigned char *src,
- unsigned_char_dynarr *dst, unsigned int n)
+decode_coding_sjis (Lstream *decoding, const Extbyte *src,
+ unsigned_char_dynarr *dst, Lstream_data_count n)
{
- unsigned char c;
struct decoding_stream *str = DECODING_STREAM_DATA (decoding);
unsigned int flags = str->flags;
unsigned int ch = str->ch;
while (n--)
{
- c = *src++;
+ unsigned char c = *(unsigned char *)src++;
if (ch)
{
{
unsigned char e1, e2;
- Dynarr_add (dst, LEADING_BYTE_JAPANESE_JISX0208);
DECODE_SJIS (ch, c, e1, e2);
+#ifdef UTF2000
+ DECODE_ADD_UCS_CHAR(MAKE_CHAR(Vcharset_japanese_jisx0208,
+ e1 & 0x7F,
+ e2 & 0x7F), dst);
+#else
+ Dynarr_add (dst, LEADING_BYTE_JAPANESE_JISX0208);
Dynarr_add (dst, e1);
Dynarr_add (dst, e2);
+#endif
}
else
{
ch = c;
else if (BYTE_SJIS_KATAKANA_P (c))
{
+#ifdef UTF2000
+ DECODE_ADD_UCS_CHAR(MAKE_CHAR(Vcharset_katakana_jisx0201,
+ c & 0x7F, 0), dst);
+#else
Dynarr_add (dst, LEADING_BYTE_KATAKANA_JISX0201);
Dynarr_add (dst, c);
+#endif
}
else
DECODE_ADD_BINARY_CHAR (c, dst);
/* Convert internally-formatted data to Shift-JIS. */
static void
-encode_coding_sjis (Lstream *encoding, CONST unsigned char *src,
- unsigned_char_dynarr *dst, unsigned int n)
+encode_coding_sjis (Lstream *encoding, const Bufbyte *src,
+ unsigned_char_dynarr *dst, Lstream_data_count n)
{
- unsigned char c;
struct encoding_stream *str = ENCODING_STREAM_DATA (encoding);
unsigned int flags = str->flags;
unsigned int ch = str->ch;
eol_type_t eol_type = CODING_SYSTEM_EOL_TYPE (str->codesys);
+#ifdef UTF2000
+ unsigned char char_boundary = str->iso2022.current_char_boundary;
+#endif
while (n--)
{
- c = *src++;
+ Bufbyte c = *src++;
+#ifdef UTF2000
+ switch (char_boundary)
+ {
+ case 0:
+ if ( c >= 0xfc )
+ {
+ ch = c & 0x01;
+ char_boundary = 5;
+ }
+ else if ( c >= 0xf8 )
+ {
+ ch = c & 0x03;
+ char_boundary = 4;
+ }
+ else if ( c >= 0xf0 )
+ {
+ ch = c & 0x07;
+ char_boundary = 3;
+ }
+ else if ( c >= 0xe0 )
+ {
+ ch = c & 0x0f;
+ char_boundary = 2;
+ }
+ else if ( c >= 0xc0 )
+ {
+ ch = c & 0x1f;
+ char_boundary = 1;
+ }
+ else
+ {
+ ch = 0;
+ if (c == '\n')
+ {
+ if (eol_type != EOL_LF && eol_type != EOL_AUTODETECT)
+ Dynarr_add (dst, '\r');
+ if (eol_type != EOL_CR)
+ Dynarr_add (dst, c);
+ }
+ else
+ Dynarr_add (dst, c);
+ char_boundary = 0;
+ }
+ break;
+ case 1:
+ ch = ( ch << 6 ) | ( c & 0x3f );
+ {
+ Lisp_Object charset;
+ unsigned int c1, c2, s1, s2;
+
+ BREAKUP_CHAR (ch, charset, c1, c2);
+ if (EQ(charset, Vcharset_katakana_jisx0201))
+ {
+ Dynarr_add (dst, c1 | 0x80);
+ }
+ else if (EQ(charset, Vcharset_japanese_jisx0208))
+ {
+ ENCODE_SJIS (c1 | 0x80, c2 | 0x80, s1, s2);
+ Dynarr_add (dst, s1);
+ Dynarr_add (dst, s2);
+ }
+ }
+ char_boundary = 0;
+ break;
+ default:
+ ch = ( ch << 6 ) | ( c & 0x3f );
+ char_boundary--;
+ }
+#else
if (c == '\n')
{
if (eol_type != EOL_LF && eol_type != EOL_AUTODETECT)
ch = 0;
}
}
+#endif
}
str->flags = flags;
str->ch = ch;
+#ifdef UTF2000
+ str->iso2022.current_char_boundary = char_boundary;
+#endif
}
DEFUN ("decode-shift-jis-char", Fdecode_shift_jis_char, 1, 1, 0, /*
}
DEFUN ("encode-shift-jis-char", Fencode_shift_jis_char, 1, 1, 0, /*
-Encode a JISX0208 character CHAR to SHIFT-JIS coding-system.
+Encode a JISX0208 character CHARACTER to SHIFT-JIS coding-system.
Return the corresponding character code in SHIFT-JIS as a cons of two bytes.
*/
- (ch))
+ (character))
{
Lisp_Object charset;
int c1, c2, s1, s2;
- CHECK_CHAR_COERCE_INT (ch);
- BREAKUP_CHAR (XCHAR (ch), charset, c1, c2);
+ CHECK_CHAR_COERCE_INT (character);
+ BREAKUP_CHAR (XCHAR (character), charset, c1, c2);
if (EQ (charset, Vcharset_japanese_jisx0208))
{
ENCODE_SJIS (c1 | 0x80, c2 | 0x80, s1, s2);
} while (0)
static int
-detect_coding_big5 (struct detection_state *st, CONST unsigned char *src,
- unsigned int n)
+detect_coding_big5 (struct detection_state *st, const Extbyte *src, Lstream_data_count n)
{
- int c;
-
while (n--)
{
- c = *src++;
+ unsigned char c = *(unsigned char *)src++;
if (c == ISO_CODE_ESC || c == ISO_CODE_SI || c == ISO_CODE_SO ||
(c >= 0x80 && c <= 0xA0))
return 0;
/* Convert Big5 data to internal format. */
static void
-decode_coding_big5 (Lstream *decoding, CONST unsigned char *src,
- unsigned_char_dynarr *dst, unsigned int n)
+decode_coding_big5 (Lstream *decoding, const Extbyte *src,
+ unsigned_char_dynarr *dst, Lstream_data_count n)
{
- unsigned char c;
struct decoding_stream *str = DECODING_STREAM_DATA (decoding);
unsigned int flags = str->flags;
unsigned int ch = str->ch;
while (n--)
{
- c = *src++;
+ unsigned char c = *(unsigned char *)src++;
if (ch)
{
/* Previous character was first byte of Big5 char. */
/* Convert internally-formatted data to Big5. */
static void
-encode_coding_big5 (Lstream *encoding, CONST unsigned char *src,
- unsigned_char_dynarr *dst, unsigned int n)
+encode_coding_big5 (Lstream *encoding, const Bufbyte *src,
+ unsigned_char_dynarr *dst, Lstream_data_count n)
{
+#ifndef UTF2000
unsigned char c;
struct encoding_stream *str = ENCODING_STREAM_DATA (encoding);
unsigned int flags = str->flags;
str->flags = flags;
str->ch = ch;
+#endif
}
if (BYTE_BIG5_TWO_BYTE_1_P (b1) &&
BYTE_BIG5_TWO_BYTE_2_P (b2))
{
- int leading_byte;
+ Charset_ID leading_byte;
Lisp_Object charset;
DECODE_BIG5 (b1, b2, leading_byte, c1, c2);
charset = CHARSET_BY_LEADING_BYTE (leading_byte);
}
DEFUN ("encode-big5-char", Fencode_big5_char, 1, 1, 0, /*
-Encode the Big5 character CH to BIG5 coding-system.
+Encode the Big5 character CHARACTER in the BIG5 coding-system.
Return the corresponding character code in Big5.
*/
- (ch))
+ (character))
{
Lisp_Object charset;
int c1, c2, b1, b2;
- CHECK_CHAR_COERCE_INT (ch);
- BREAKUP_CHAR (XCHAR (ch), charset, c1, c2);
+ CHECK_CHAR_COERCE_INT (character);
+ BREAKUP_CHAR (XCHAR (character), charset, c1, c2);
if (EQ (charset, Vcharset_chinese_big5_1) ||
EQ (charset, Vcharset_chinese_big5_2))
{
/* */
/************************************************************************/
-
+#ifndef UTF2000
DEFUN ("set-ucs-char", Fset_ucs_char, 2, 2, 0, /*
Map UCS-4 code CODE to Mule character CHARACTER.
*/
(code, character))
{
- unsigned int c;
+ size_t c;
CHECK_CHAR (character);
- CHECK_INT (code);
+ CHECK_NATNUM (code);
c = XINT (code);
- if (c < sizeof (fcd->ucs_to_mule_table))
+ if (c < countof (fcd->ucs_to_mule_table))
{
fcd->ucs_to_mule_table[c] = character;
return Qt;
static Lisp_Object
ucs_to_char (unsigned long code)
{
- if (code < sizeof (fcd->ucs_to_mule_table))
+ if (code < countof (fcd->ucs_to_mule_table))
{
return fcd->ucs_to_mule_table[code];
}
c = code % (94 * 94);
return make_char
(MAKE_CHAR (CHARSET_BY_ATTRIBUTES
- (CHARSET_TYPE_94X94, code / (94 * 94) + '@',
+ (94, 2, code / (94 * 94) + '@',
CHARSET_LEFT_TO_RIGHT),
c / 94 + 33, c % 94 + 33));
}
{
return Fget_char_table (character, mule_to_ucs_table);
}
+#endif
+#ifdef UTF2000
+#define decode_ucs4 DECODE_ADD_UCS_CHAR
+#else
/* Decode a UCS-4 character into a buffer. If the lookup fails, use
<GETA MARK> (U+3013) of JIS X 0208, which means correct character
is not found, instead.
Dynarr_add (dst, 46 + 128);
}
}
+#endif
+#ifndef UTF2000
static unsigned long
mule_char_to_ucs4 (Lisp_Object charset,
unsigned char h, unsigned char l)
Dynarr_add (dst, (code >> 8) & 255);
Dynarr_add (dst, code & 255);
}
+#endif
static int
-detect_coding_ucs4 (struct detection_state *st, CONST unsigned char *src,
- unsigned int n)
+detect_coding_ucs4 (struct detection_state *st, const Extbyte *src, Lstream_data_count n)
{
while (n--)
{
- int c = *src++;
+ unsigned char c = *(unsigned char *)src++;
switch (st->ucs4.in_byte)
{
case 0:
}
static void
-decode_coding_ucs4 (Lstream *decoding, CONST unsigned char *src,
- unsigned_char_dynarr *dst, unsigned int n)
+decode_coding_ucs4 (Lstream *decoding, const Extbyte *src,
+ unsigned_char_dynarr *dst, Lstream_data_count n)
{
struct decoding_stream *str = DECODING_STREAM_DATA (decoding);
unsigned int flags = str->flags;
while (n--)
{
- unsigned char c = *src++;
+ unsigned char c = *(unsigned char *)src++;
switch (counter)
{
case 0:
}
static void
-encode_coding_ucs4 (Lstream *encoding, CONST unsigned char *src,
- unsigned_char_dynarr *dst, unsigned int n)
+encode_coding_ucs4 (Lstream *encoding, const Bufbyte *src,
+ unsigned_char_dynarr *dst, Lstream_data_count n)
{
+#ifndef UTF2000
struct encoding_stream *str = ENCODING_STREAM_DATA (encoding);
unsigned int flags = str->flags;
unsigned int ch = str->ch;
/* flags for handling composite chars. We do a little switcharoo
on the source while we're outputting the composite char. */
unsigned int saved_n = 0;
- CONST unsigned char *saved_src = NULL;
+ const unsigned char *saved_src = NULL;
int in_composite = 0;
back_to_square_n:
{
/* #### Bother! We don't know how to
handle this yet. */
- Dynarr_add (dst, 0);
- Dynarr_add (dst, 0);
- Dynarr_add (dst, 0);
+ Dynarr_add (dst, '\0');
+ Dynarr_add (dst, '\0');
+ Dynarr_add (dst, '\0');
Dynarr_add (dst, '~');
}
else
}
break;
default:
- abort ();
+ ABORT ();
}
}
}
str->iso2022.current_charset = charset;
/* Verbum caro factum est! */
+#endif
}
\f
/************************************************************************/
static int
-detect_coding_utf8 (struct detection_state *st, CONST unsigned char *src,
- unsigned int n)
+detect_coding_utf8 (struct detection_state *st, const Extbyte *src, Lstream_data_count n)
{
while (n--)
{
- unsigned char c = *src++;
+ unsigned char c = *(unsigned char *)src++;
switch (st->utf8.in_byte)
{
case 0:
}
static void
-decode_coding_utf8 (Lstream *decoding, CONST unsigned char *src,
- unsigned_char_dynarr *dst, unsigned int n)
+decode_coding_utf8 (Lstream *decoding, const Extbyte *src,
+ unsigned_char_dynarr *dst, Lstream_data_count n)
{
struct decoding_stream *str = DECODING_STREAM_DATA (decoding);
unsigned int flags = str->flags;
while (n--)
{
- unsigned char c = *src++;
+ unsigned char c = *(unsigned char *)src++;
switch (counter)
{
case 0:
str->counter = counter;
}
+#ifndef UTF2000
static void
encode_utf8 (Lisp_Object charset,
unsigned char h, unsigned char l, unsigned_char_dynarr *dst)
Dynarr_add (dst, (code & 0x3f) | 0x80);
}
}
+#endif
static void
-encode_coding_utf8 (Lstream *encoding, CONST unsigned char *src,
- unsigned_char_dynarr *dst, unsigned int n)
+encode_coding_utf8 (Lstream *encoding, const Bufbyte *src,
+ unsigned_char_dynarr *dst, Lstream_data_count n)
{
struct encoding_stream *str = ENCODING_STREAM_DATA (encoding);
unsigned int flags = str->flags;
unsigned int ch = str->ch;
eol_type_t eol_type = CODING_SYSTEM_EOL_TYPE (str->codesys);
unsigned char char_boundary = str->iso2022.current_char_boundary;
+#ifdef UTF2000
+
+ while (n--)
+ {
+ unsigned char c = *src++;
+ switch (char_boundary)
+ {
+ case 0:
+ if ( c >= 0xfc )
+ {
+ Dynarr_add (dst, c);
+ char_boundary = 5;
+ }
+ else if ( c >= 0xf8 )
+ {
+ Dynarr_add (dst, c);
+ char_boundary = 4;
+ }
+ else if ( c >= 0xf0 )
+ {
+ Dynarr_add (dst, c);
+ char_boundary = 3;
+ }
+ else if ( c >= 0xe0 )
+ {
+ Dynarr_add (dst, c);
+ char_boundary = 2;
+ }
+ else if ( c >= 0xc0 )
+ {
+ Dynarr_add (dst, c);
+ char_boundary = 1;
+ }
+ else
+ {
+ if (c == '\n')
+ {
+ if (eol_type != EOL_LF && eol_type != EOL_AUTODETECT)
+ Dynarr_add (dst, '\r');
+ if (eol_type != EOL_CR)
+ Dynarr_add (dst, c);
+ }
+ else
+ Dynarr_add (dst, c);
+ char_boundary = 0;
+ }
+ break;
+ case 1:
+ Dynarr_add (dst, c);
+ char_boundary = 0;
+ break;
+ default:
+ Dynarr_add (dst, c);
+ char_boundary--;
+ }
+ }
+#else /* not UTF2000 */
Lisp_Object charset = str->iso2022.current_charset;
#ifdef ENABLE_COMPOSITE_CHARS
/* flags for handling composite chars. We do a little switcharoo
on the source while we're outputting the composite char. */
unsigned int saved_n = 0;
- CONST unsigned char *saved_src = NULL;
+ const unsigned char *saved_src = NULL;
int in_composite = 0;
back_to_square_n:
}
break;
default:
- abort ();
+ ABORT ();
}
}
}
}
#endif
+#endif /* not UTF2000 */
str->flags = flags;
str->ch = ch;
str->iso2022.current_char_boundary = char_boundary;
+#ifndef UTF2000
str->iso2022.current_charset = charset;
+#endif
/* Verbum caro factum est! */
}
If CHECK_INVALID_CHARSETS is non-zero, check for designation
or invocation of an invalid character set and treat that as
- an unrecognized escape sequence. */
+ an unrecognized escape sequence.
-static int
-parse_iso2022_esc (Lisp_Object codesys, struct iso2022_decoder *iso,
- unsigned char c, unsigned int *flags,
- int check_invalid_charsets)
-{
+ ********************************************************************
+
+ #### Strategies for error annotation and coding orthogonalization
+
+ We really want to separate out a number of things. Conceptually,
+ there is a nested syntax.
+
+ At the top level is the ISO 2022 extension syntax, including charset
+ designation and invocation, and certain auxiliary controls such as the
+ ISO 6429 direction specification. These are octet-oriented, with the
+ single exception (AFAIK) of the "exit Unicode" sequence which uses the
+ UTF's natural width (1 byte for UTF-7 and UTF-8, 2 bytes for UCS-2 and
+ UTF-16, and 4 bytes for UCS-4 and UTF-32). This will be treated as a
+ (deprecated) special case in Unicode processing.
+
+ The middle layer is ISO 2022 character interpretation. This will depend
+ on the current state of the ISO 2022 registers, and assembles octets
+ into the character's internal representation.
+
+ The lowest level is translating system control conventions. At present
+ this is restricted to newline translation, but one could imagine doing
+ tab conversion or line wrapping here. "Escape from Unicode" processing
+ would be done at this level.
+
+ At each level the parser will verify the syntax. In the case of a
+ syntax error or warning (such as a redundant escape sequence that affects
+ no characters), the parser will take some action, typically inserting the
+ erroneous octets directly into the output and creating an annotation
+ which can be used by higher level I/O to mark the affected region.
+
+ This should make it possible to do something sensible about separating
+ newline convention processing from character construction, and about
+ preventing ISO 2022 escape sequences from being recognized
+ inappropriately.
+
+ The basic strategy will be to have octet classification tables, and
+ switch processing according to the table entry.
+
+ It's possible that, by doing the processing with tables of functions or
+ the like, the parser can be used for both detection and translation. */
+
+static int
+parse_iso2022_esc (Lisp_Object codesys, struct iso2022_decoder *iso,
+ unsigned char c, unsigned int *flags,
+ int check_invalid_charsets)
+{
/* (1) If we're at the end of a designation sequence, CS is the
charset being designated and REG is the register to designate
it to.
}
if (0x40 <= c && c <= 0x42)
{
- cs = CHARSET_BY_ATTRIBUTES (CHARSET_TYPE_94X94, c,
+ cs = CHARSET_BY_ATTRIBUTES (94, 2, c,
*flags & CODING_STATE_R2L ?
CHARSET_RIGHT_TO_LEFT :
CHARSET_LEFT_TO_RIGHT);
default:
{
- int type =-1;
+ /* int type =-1; */
+ int chars = 0;
+ int single = 0;
if (c < '0' || c > '~')
return 0; /* bad final byte */
if (iso->esc >= ISO_ESC_2_8 &&
iso->esc <= ISO_ESC_2_15)
{
- type = ((iso->esc >= ISO_ESC_2_12) ?
- CHARSET_TYPE_96 : CHARSET_TYPE_94);
+ chars = (iso->esc >= ISO_ESC_2_12) ? 96 : 94;
+ single = 1; /* single-byte */
reg = (iso->esc - ISO_ESC_2_8) & 3;
}
else if (iso->esc >= ISO_ESC_2_4_8 &&
iso->esc <= ISO_ESC_2_4_15)
{
- type = ((iso->esc >= ISO_ESC_2_4_12) ?
- CHARSET_TYPE_96X96 : CHARSET_TYPE_94X94);
+ chars = (iso->esc >= ISO_ESC_2_4_12) ? 96 : 94;
+ single = -1; /* multi-byte */
reg = (iso->esc - ISO_ESC_2_4_8) & 3;
}
else
{
/* Can this ever be reached? -slb */
- abort();
+ ABORT();
+ return 0;
}
- cs = CHARSET_BY_ATTRIBUTES (type, c,
+ cs = CHARSET_BY_ATTRIBUTES (chars, single, c,
*flags & CODING_STATE_R2L ?
CHARSET_RIGHT_TO_LEFT :
CHARSET_LEFT_TO_RIGHT);
}
static int
-detect_coding_iso2022 (struct detection_state *st, CONST unsigned char *src,
- unsigned int n)
+detect_coding_iso2022 (struct detection_state *st, const Extbyte *src, Lstream_data_count n)
{
int mask;
while (n--)
{
- int c = *src++;
+ unsigned char c = *(unsigned char *)src++;
if (c >= 0xA0)
{
mask &= ~CODING_CATEGORY_ISO_7_MASK;
/* Convert ISO2022-format data to internal format. */
static void
-decode_coding_iso2022 (Lstream *decoding, CONST unsigned char *src,
- unsigned_char_dynarr *dst, unsigned int n)
+decode_coding_iso2022 (Lstream *decoding, const Extbyte *src,
+ unsigned_char_dynarr *dst, Lstream_data_count n)
{
struct decoding_stream *str = DECODING_STREAM_DATA (decoding);
unsigned int flags = str->flags;
while (n--)
{
- unsigned char c = *src++;
+ unsigned char c = *(unsigned char *)src++;
if (flags & CODING_STATE_ESCAPE)
{ /* Within ESC sequence */
int retval = parse_iso2022_esc (coding_system, &str->iso2022,
else
{ /* Graphic characters */
Lisp_Object charset;
- int lb;
+#ifndef UTF2000
+ Charset_ID lb;
+#endif
int reg;
DECODE_HANDLE_EOL_TYPE (eol_type, c, flags, dst);
charset = new_charset;
}
+#ifdef UTF2000
+ if (XCHARSET_DIMENSION (charset) == 1)
+ {
+ DECODE_OUTPUT_PARTIAL_CHAR (ch);
+ DECODE_ADD_UCS_CHAR
+ (MAKE_CHAR (charset, c & 0x7F, 0), dst);
+ }
+ else if (ch)
+ {
+ DECODE_ADD_UCS_CHAR
+ (MAKE_CHAR (charset, ch & 0x7F, c & 0x7F), dst);
+ ch = 0;
+ }
+ else
+ ch = c;
+#else
lb = XCHARSET_LEADING_BYTE (charset);
switch (XCHARSET_REP_BYTES (charset))
{
else
ch = c;
}
+#endif
}
if (!ch)
iso2022_designate (Lisp_Object charset, unsigned char reg,
struct encoding_stream *str, unsigned_char_dynarr *dst)
{
- static CONST char inter94[] = "()*+";
- static CONST char inter96[] = ",-./";
+ static const char inter94[] = "()*+";
+ static const char inter96[] = ",-./";
unsigned int type;
unsigned char final;
Lisp_Object old_charset = str->iso2022.charset[reg];
/* Convert internally-formatted data to ISO2022 format. */
static void
-encode_coding_iso2022 (Lstream *encoding, CONST unsigned char *src,
- unsigned_char_dynarr *dst, unsigned int n)
+encode_coding_iso2022 (Lstream *encoding, const Bufbyte *src,
+ unsigned_char_dynarr *dst, Lstream_data_count n)
{
unsigned char charmask, c;
unsigned char char_boundary;
struct encoding_stream *str = ENCODING_STREAM_DATA (encoding);
unsigned int flags = str->flags;
- unsigned int ch = str->ch;
+ Emchar ch = str->ch;
Lisp_Coding_System *codesys = str->codesys;
eol_type_t eol_type = CODING_SYSTEM_EOL_TYPE (str->codesys);
int i;
Lisp_Object charset;
int half;
+#ifdef UTF2000
+ unsigned int byte1, byte2;
+#endif
#ifdef ENABLE_COMPOSITE_CHARS
/* flags for handling composite chars. We do a little switcharoo
on the source while we're outputting the composite char. */
unsigned int saved_n = 0;
- CONST unsigned char *saved_src = NULL;
+ const unsigned char *saved_src = NULL;
int in_composite = 0;
#endif /* ENABLE_COMPOSITE_CHARS */
#ifdef ENABLE_COMPOSITE_CHARS
back_to_square_n:
#endif
+#ifdef UTF2000
+ while (n--)
+ {
+ c = *src++;
+
+ switch (char_boundary)
+ {
+ case 0:
+ if ( c >= 0xfc )
+ {
+ ch = c & 0x01;
+ char_boundary = 5;
+ }
+ else if ( c >= 0xf8 )
+ {
+ ch = c & 0x03;
+ char_boundary = 4;
+ }
+ else if ( c >= 0xf0 )
+ {
+ ch = c & 0x07;
+ char_boundary = 3;
+ }
+ else if ( c >= 0xe0 )
+ {
+ ch = c & 0x0f;
+ char_boundary = 2;
+ }
+ else if ( c >= 0xc0 )
+ {
+ ch = c & 0x1f;
+ char_boundary = 1;
+ }
+ else
+ {
+ ch = 0;
+
+ restore_left_to_right_direction (codesys, dst, &flags, 0);
+
+ /* Make sure G0 contains ASCII */
+ if ((c > ' ' && c < ISO_CODE_DEL) ||
+ !CODING_SYSTEM_ISO2022_NO_ASCII_CNTL (codesys))
+ {
+ ensure_normal_shift (str, dst);
+ iso2022_designate (Vcharset_ascii, 0, str, dst);
+ }
+
+ /* If necessary, restore everything to the default state
+ at end-of-line */
+ if (c == '\n' &&
+ !(CODING_SYSTEM_ISO2022_NO_ASCII_EOL (codesys)))
+ {
+ restore_left_to_right_direction (codesys, dst, &flags, 0);
+
+ ensure_normal_shift (str, dst);
+
+ for (i = 0; i < 4; i++)
+ {
+ Lisp_Object initial_charset =
+ CODING_SYSTEM_ISO2022_INITIAL_CHARSET (codesys, i);
+ iso2022_designate (initial_charset, i, str, dst);
+ }
+ }
+ if (c == '\n')
+ {
+ if (eol_type != EOL_LF && eol_type != EOL_AUTODETECT)
+ Dynarr_add (dst, '\r');
+ if (eol_type != EOL_CR)
+ Dynarr_add (dst, c);
+ }
+ else
+ {
+ if (CODING_SYSTEM_ISO2022_ESCAPE_QUOTED (codesys)
+ && fit_to_be_escape_quoted (c))
+ Dynarr_add (dst, ISO_CODE_ESC);
+ Dynarr_add (dst, c);
+ }
+ char_boundary = 0;
+ }
+ break;
+ case 1:
+ ch = ( ch << 6 ) | ( c & 0x3f );
+
+ char_boundary = 0;
+ if ( (0x80 <= ch) && (ch <= 0x9f) )
+ {
+ charmask = (half == 0 ? 0x00 : 0x80);
+
+ if (CODING_SYSTEM_ISO2022_ESCAPE_QUOTED (codesys)
+ && fit_to_be_escape_quoted (ch))
+ Dynarr_add (dst, ISO_CODE_ESC);
+ /* you asked for it ... */
+ Dynarr_add (dst, ch);
+ }
+ else
+ {
+ int reg;
+
+ BREAKUP_CHAR (ch, charset, byte1, byte2);
+ ensure_correct_direction (XCHARSET_DIRECTION (charset),
+ codesys, dst, &flags, 0);
+
+ /* Now determine which register to use. */
+ reg = -1;
+ for (i = 0; i < 4; i++)
+ {
+ if (EQ (charset, str->iso2022.charset[i]) ||
+ EQ (charset,
+ CODING_SYSTEM_ISO2022_INITIAL_CHARSET (codesys, i)))
+ {
+ reg = i;
+ break;
+ }
+ }
+
+ if (reg == -1)
+ {
+ if (XCHARSET_GRAPHIC (charset) != 0)
+ {
+ if (!NILP (str->iso2022.charset[1]) &&
+ (!CODING_SYSTEM_ISO2022_SEVEN (codesys) ||
+ CODING_SYSTEM_ISO2022_LOCK_SHIFT (codesys)))
+ reg = 1;
+ else if (!NILP (str->iso2022.charset[2]))
+ reg = 2;
+ else if (!NILP (str->iso2022.charset[3]))
+ reg = 3;
+ else
+ reg = 0;
+ }
+ else
+ reg = 0;
+ }
+
+ iso2022_designate (charset, reg, str, dst);
+
+ /* Now invoke that register. */
+ switch (reg)
+ {
+ case 0:
+ ensure_normal_shift (str, dst);
+ half = 0;
+ break;
+
+ case 1:
+ if (CODING_SYSTEM_ISO2022_SEVEN (codesys))
+ {
+ ensure_shift_out (str, dst);
+ half = 0;
+ }
+ else
+ half = 1;
+ break;
+
+ case 2:
+ if (CODING_SYSTEM_ISO2022_SEVEN (str->codesys))
+ {
+ Dynarr_add (dst, ISO_CODE_ESC);
+ Dynarr_add (dst, 'N');
+ half = 0;
+ }
+ else
+ {
+ Dynarr_add (dst, ISO_CODE_SS2);
+ half = 1;
+ }
+ break;
+
+ case 3:
+ if (CODING_SYSTEM_ISO2022_SEVEN (str->codesys))
+ {
+ Dynarr_add (dst, ISO_CODE_ESC);
+ Dynarr_add (dst, 'O');
+ half = 0;
+ }
+ else
+ {
+ Dynarr_add (dst, ISO_CODE_SS3);
+ half = 1;
+ }
+ break;
+
+ default:
+ abort ();
+ }
+
+ charmask = (half == 0 ? 0x00 : 0x80);
+
+ switch (XCHARSET_DIMENSION (charset))
+ {
+ case 1:
+ Dynarr_add (dst, byte1 | charmask);
+ break;
+ case 2:
+ Dynarr_add (dst, byte1 | charmask);
+ Dynarr_add (dst, byte2 | charmask);
+ break;
+ default:
+ abort ();
+ }
+ }
+ ch =0;
+ break;
+ default:
+ ch = ( ch << 6 ) | ( c & 0x3f );
+ char_boundary--;
+ }
+ }
+#else /* not UTF2000 */
+
while (n--)
{
c = *src++;
break;
default:
- abort ();
+ ABORT ();
}
}
char_boundary = 0;
}
break;
default:
- abort ();
+ ABORT ();
}
}
}
}
+#endif /* not UTF2000 */
#ifdef ENABLE_COMPOSITE_CHARS
if (in_composite)
}
#endif /* ENABLE_COMPOSITE_CHARS */
+#ifdef UTF2000
+ if ( (char_boundary == 0) && flags & CODING_STATE_END)
+#else
if (char_boundary && flags & CODING_STATE_END)
+#endif
{
restore_left_to_right_direction (codesys, dst, &flags, 0);
ensure_normal_shift (str, dst);
contain all 256 possible byte values and that are not to be
interpreted as being in any particular decoding. */
static void
-decode_coding_no_conversion (Lstream *decoding, CONST unsigned char *src,
- unsigned_char_dynarr *dst, unsigned int n)
+decode_coding_no_conversion (Lstream *decoding, const Extbyte *src,
+ unsigned_char_dynarr *dst, Lstream_data_count n)
{
- unsigned char c;
struct decoding_stream *str = DECODING_STREAM_DATA (decoding);
unsigned int flags = str->flags;
unsigned int ch = str->ch;
while (n--)
{
- c = *src++;
+ unsigned char c = *(unsigned char *)src++;
DECODE_HANDLE_EOL_TYPE (eol_type, c, flags, dst);
DECODE_ADD_BINARY_CHAR (c, dst);
}
static void
-encode_coding_no_conversion (Lstream *encoding, CONST unsigned char *src,
- unsigned_char_dynarr *dst, unsigned int n)
+encode_coding_no_conversion (Lstream *encoding, const Bufbyte *src,
+ unsigned_char_dynarr *dst, Lstream_data_count n)
{
unsigned char c;
struct encoding_stream *str = ENCODING_STREAM_DATA (encoding);
unsigned int flags = str->flags;
unsigned int ch = str->ch;
eol_type_t eol_type = CODING_SYSTEM_EOL_TYPE (str->codesys);
+#ifdef UTF2000
+ unsigned char char_boundary = str->iso2022.current_char_boundary;
+#endif
while (n--)
{
- c = *src++;
+ c = *src++;
+#ifdef UTF2000
+ switch (char_boundary)
+ {
+ case 0:
+ if ( c >= 0xfc )
+ {
+ ch = c & 0x01;
+ char_boundary = 5;
+ }
+ else if ( c >= 0xf8 )
+ {
+ ch = c & 0x03;
+ char_boundary = 4;
+ }
+ else if ( c >= 0xf0 )
+ {
+ ch = c & 0x07;
+ char_boundary = 3;
+ }
+ else if ( c >= 0xe0 )
+ {
+ ch = c & 0x0f;
+ char_boundary = 2;
+ }
+ else if ( c >= 0xc0 )
+ {
+ ch = c & 0x1f;
+ char_boundary = 1;
+ }
+ else
+ {
+ ch = 0;
+
+ if (c == '\n')
+ {
+ if (eol_type != EOL_LF && eol_type != EOL_AUTODETECT)
+ Dynarr_add (dst, '\r');
+ if (eol_type != EOL_CR)
+ Dynarr_add (dst, c);
+ }
+ else
+ Dynarr_add (dst, c);
+ char_boundary = 0;
+ }
+ break;
+ case 1:
+ ch = ( ch << 6 ) | ( c & 0x3f );
+ Dynarr_add (dst, ch & 0xff);
+ char_boundary = 0;
+ break;
+ default:
+ ch = ( ch << 6 ) | ( c & 0x3f );
+ char_boundary--;
+ }
+#else /* not UTF2000 */
if (c == '\n')
{
if (eol_type != EOL_LF && eol_type != EOL_AUTODETECT)
untranslatable character, so ignore it */
ch = 0;
}
+#endif /* not UTF2000 */
}
str->flags = flags;
str->ch = ch;
-}
-
-\f
-/************************************************************************/
-/* Simple internal/external functions */
-/************************************************************************/
-
-static Extbyte_dynarr *conversion_out_dynarr;
-static Bufbyte_dynarr *conversion_in_dynarr;
-
-/* Determine coding system from coding format */
-
-/* #### not correct for all values of `fmt'! */
-static Lisp_Object
-external_data_format_to_coding_system (enum external_data_format fmt)
-{
- switch (fmt)
- {
- case FORMAT_FILENAME:
- case FORMAT_TERMINAL:
- if (EQ (Vfile_name_coding_system, Qnil) ||
- EQ (Vfile_name_coding_system, Qbinary))
- return Qnil;
- else
- return Fget_coding_system (Vfile_name_coding_system);
-#ifdef MULE
- case FORMAT_CTEXT:
- return Fget_coding_system (Qctext);
-#endif
- default:
- return Qnil;
- }
-}
-
-Extbyte *
-convert_to_external_format (CONST Bufbyte *ptr,
- Bytecount len,
- Extcount *len_out,
- enum external_data_format fmt)
-{
- Lisp_Object coding_system = external_data_format_to_coding_system (fmt);
-
- if (!conversion_out_dynarr)
- conversion_out_dynarr = Dynarr_new (Extbyte);
- else
- Dynarr_reset (conversion_out_dynarr);
-
- if (NILP (coding_system))
- {
- CONST Bufbyte *end = ptr + len;
-
- for (; ptr < end;)
- {
- Bufbyte c =
- (BYTE_ASCII_P (*ptr)) ? *ptr :
- (*ptr == LEADING_BYTE_CONTROL_1) ? (*(ptr+1) - 0x20) :
- (*ptr == LEADING_BYTE_LATIN_ISO8859_1) ? (*(ptr+1)) :
- '~';
-
- Dynarr_add (conversion_out_dynarr, (Extbyte) c);
- INC_CHARPTR (ptr);
- }
-
-#ifdef ERROR_CHECK_BUFPOS
- assert (ptr == end);
+#ifdef UTF2000
+ str->iso2022.current_char_boundary = char_boundary;
#endif
- }
- else
- {
- Lisp_Object instream, outstream, da_outstream;
- Lstream *istr, *ostr;
- struct gcpro gcpro1, gcpro2, gcpro3;
- char tempbuf[1024]; /* some random amount */
-
- instream = make_fixed_buffer_input_stream ((unsigned char *) ptr, len);
- da_outstream = make_dynarr_output_stream
- ((unsigned_char_dynarr *) conversion_out_dynarr);
- outstream =
- make_encoding_output_stream (XLSTREAM (da_outstream), coding_system);
- istr = XLSTREAM (instream);
- ostr = XLSTREAM (outstream);
- GCPRO3 (instream, outstream, da_outstream);
- while (1)
- {
- ssize_t size_in_bytes = Lstream_read (istr, tempbuf, sizeof (tempbuf));
- if (!size_in_bytes)
- break;
- Lstream_write (ostr, tempbuf, size_in_bytes);
- }
- Lstream_close (istr);
- Lstream_close (ostr);
- UNGCPRO;
- Lstream_delete (istr);
- Lstream_delete (ostr);
- Lstream_delete (XLSTREAM (da_outstream));
- }
-
- *len_out = Dynarr_length (conversion_out_dynarr);
- Dynarr_add (conversion_out_dynarr, 0); /* remember to zero-terminate! */
- return Dynarr_atp (conversion_out_dynarr, 0);
-}
-
-Bufbyte *
-convert_from_external_format (CONST Extbyte *ptr,
- Extcount len,
- Bytecount *len_out,
- enum external_data_format fmt)
-{
- Lisp_Object coding_system = external_data_format_to_coding_system (fmt);
-
- if (!conversion_in_dynarr)
- conversion_in_dynarr = Dynarr_new (Bufbyte);
- else
- Dynarr_reset (conversion_in_dynarr);
-
- if (NILP (coding_system))
- {
- CONST Extbyte *end = ptr + len;
- for (; ptr < end; ptr++)
- {
- Extbyte c = *ptr;
- DECODE_ADD_BINARY_CHAR (c, conversion_in_dynarr);
- }
- }
- else
- {
- Lisp_Object instream, outstream, da_outstream;
- Lstream *istr, *ostr;
- struct gcpro gcpro1, gcpro2, gcpro3;
- char tempbuf[1024]; /* some random amount */
-
- instream = make_fixed_buffer_input_stream ((unsigned char *) ptr, len);
- da_outstream = make_dynarr_output_stream
- ((unsigned_char_dynarr *) conversion_in_dynarr);
- outstream =
- make_decoding_output_stream (XLSTREAM (da_outstream), coding_system);
- istr = XLSTREAM (instream);
- ostr = XLSTREAM (outstream);
- GCPRO3 (instream, outstream, da_outstream);
- while (1)
- {
- ssize_t size_in_bytes = Lstream_read (istr, tempbuf, sizeof (tempbuf));
- if (!size_in_bytes)
- break;
- Lstream_write (ostr, tempbuf, size_in_bytes);
- }
- Lstream_close (istr);
- Lstream_close (ostr);
- UNGCPRO;
- Lstream_delete (istr);
- Lstream_delete (ostr);
- Lstream_delete (XLSTREAM (da_outstream));
- }
-
- *len_out = Dynarr_length (conversion_in_dynarr);
- Dynarr_add (conversion_in_dynarr, 0); /* remember to zero-terminate! */
- return Dynarr_atp (conversion_in_dynarr, 0);
}
\f
+
/************************************************************************/
/* Initialization */
/************************************************************************/
void
syms_of_file_coding (void)
{
- deferror (&Qcoding_system_error, "coding-system-error",
- "Coding-system error", Qio_error);
+ INIT_LRECORD_IMPLEMENTATION (coding_system);
+
+ DEFERROR_STANDARD (Qcoding_system_error, Qio_error);
DEFSUBR (Fcoding_system_p);
DEFSUBR (Ffind_coding_system);
DEFSUBR (Fcoding_system_name);
DEFSUBR (Fmake_coding_system);
DEFSUBR (Fcopy_coding_system);
+ DEFSUBR (Fcoding_system_canonical_name_p);
+ DEFSUBR (Fcoding_system_alias_p);
+ DEFSUBR (Fcoding_system_aliasee);
DEFSUBR (Fdefine_coding_system_alias);
DEFSUBR (Fsubsidiary_coding_system);
DEFSUBR (Fencode_shift_jis_char);
DEFSUBR (Fdecode_big5_char);
DEFSUBR (Fencode_big5_char);
+#ifndef UTF2000
DEFSUBR (Fset_ucs_char);
DEFSUBR (Fucs_char);
DEFSUBR (Fset_char_ucs);
DEFSUBR (Fchar_ucs);
+#endif /* not UTF2000 */
#endif /* MULE */
defsymbol (&Qcoding_systemp, "coding-system-p");
defsymbol (&Qno_conversion, "no-conversion");
defsymbol (&Qdecode, "decode");
#ifdef MULE
- defsymbol (&Qctext, "ctext");
defsymbol (&coding_category_symbol[CODING_CATEGORY_SHIFT_JIS],
"shift-jis");
defsymbol (&coding_category_symbol[CODING_CATEGORY_BIG5],
int i;
fcd = xnew (struct file_coding_dump);
- dumpstruct (&fcd, &fcd_description);
+ dump_add_root_struct_ptr (&fcd, &fcd_description);
/* Initialize to something reasonable ... */
- for (i = 0; i <= CODING_CATEGORY_LAST; i++)
+ for (i = 0; i < CODING_CATEGORY_LAST; i++)
{
fcd->coding_category_system[i] = Qnil;
fcd->coding_category_by_priority[i] = i;
Vterminal_coding_system = Qnil;
DEFVAR_LISP ("coding-system-for-read", &Vcoding_system_for_read /*
-Overriding coding system used when writing a file or process.
-You should *bind* this, not set it. If this is non-nil, it specifies
-the coding system that will be used when a file or process is read
-in, and overrides `buffer-file-coding-system-for-read',
+Overriding coding system used when reading from a file or process.
+You should bind this variable with `let', but do not set it globally.
+If this is non-nil, it specifies the coding system that will be used
+to decode input on read operations, such as from a file or process.
+It overrides `buffer-file-coding-system-for-read',
`insert-file-contents-pre-hook', etc. Use those variables instead of
-this one for permanent changes to the environment.
-*/ );
+this one for permanent changes to the environment. */ );
Vcoding_system_for_read = Qnil;
DEFVAR_LISP ("coding-system-for-write",
&Vcoding_system_for_write /*
-Overriding coding system used when writing a file or process.
-You should *bind* this, not set it. If this is non-nil, it specifies
-the coding system that will be used when a file or process is wrote
-in, and overrides `buffer-file-coding-system',
-`write-region-pre-hook', etc. Use those variables instead of this one
-for permanent changes to the environment.
-*/ );
+Overriding coding system used when writing to a file or process.
+You should bind this variable with `let', but do not set it globally.
+If this is non-nil, it specifies the coding system that will be used
+to encode output for write operations, such as to a file or process.
+It overrides `buffer-file-coding-system', `write-region-pre-hook', etc.
+Use those variables instead of this one for permanent changes to the
+environment. */ );
Vcoding_system_for_write = Qnil;
DEFVAR_LISP ("file-name-coding-system", &Vfile_name_coding_system /*
make_lisp_hash_table (50, HASH_TABLE_NON_WEAK, HASH_TABLE_EQ);
the_codesys_prop_dynarr = Dynarr_new (codesys_prop);
- dumpstruct (&the_codesys_prop_dynarr, &codesys_prop_dynarr_description);
+ dump_add_root_struct_ptr (&the_codesys_prop_dynarr, &codesys_prop_dynarr_description);
#define DEFINE_CODESYS_PROP(Prop_Type, Sym) do \
{ \
list4 (Qeol_type, Qlf,
Qmnemonic, build_string ("Binary")));
+#ifdef UTF2000
+ Fmake_coding_system
+ (Qutf8, Qutf8,
+ build_string ("Coding-system of ISO/IEC 10646 UTF-8."),
+ list2 (Qmnemonic, build_string ("UTF8")));
+#endif
+
Fdefine_coding_system_alias (Qno_conversion, Qraw_text);
+ Fdefine_coding_system_alias (Qfile_name, Qbinary);
+
+ Fdefine_coding_system_alias (Qterminal, Qbinary);
+ Fdefine_coding_system_alias (Qkeyboard, Qbinary);
+
/* Need this for bootstrapping */
fcd->coding_category_system[CODING_CATEGORY_NO_CONVERSION] =
Fget_coding_system (Qraw_text);
-#ifdef MULE
+#ifdef UTF2000
+ fcd->coding_category_system[CODING_CATEGORY_UTF8]
+ = Fget_coding_system (Qutf8);
+#endif
+
+#if defined(MULE) && !defined(UTF2000)
{
- unsigned int i;
+ size_t i;
- for (i = 0; i < 65536; i++)
+ for (i = 0; i < countof (fcd->ucs_to_mule_table); i++)
fcd->ucs_to_mule_table[i] = Qnil;
}
staticpro (&mule_to_ucs_table);
mule_to_ucs_table = Fmake_char_table(Qgeneric);
-#endif /* MULE */
+#endif /* defined(MULE) && !defined(UTF2000) */
}
projects / chise / xemacs-chise.git.1 / blobdiff