#include <config.h>
#include "lisp.h"
+
#include "buffer.h"
#include "elhash.h"
#include "insdel.h"
#include "lstream.h"
+#include "opaque.h"
#ifdef MULE
#include "mule-ccl.h"
#include "chartab.h"
#endif
#include "file-coding.h"
-Lisp_Object Qbuffer_file_coding_system, Qcoding_system_error;
+Lisp_Object Qcoding_system_error;
Lisp_Object Vkeyboard_coding_system;
Lisp_Object Vterminal_coding_system;
/* Table of symbols identifying each coding category. */
Lisp_Object coding_category_symbol[CODING_CATEGORY_LAST + 1];
-/* Coding system currently associated with each coding category. */
-Lisp_Object coding_category_system[CODING_CATEGORY_LAST + 1];
-/* 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];
-Lisp_Object Qcoding_system_p;
+struct file_coding_dump {
+ /* Coding system currently associated with each coding category. */
+ Lisp_Object coding_category_system[CODING_CATEGORY_LAST + 1];
+
+ /* 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];
+
+#ifdef MULE
+ Lisp_Object ucs_to_mule_table[65536];
+#endif
+} *fcd;
+
+static const struct lrecord_description fcd_description_1[] = {
+ { XD_LISP_OBJECT_ARRAY, offsetof (struct file_coding_dump, coding_category_system), CODING_CATEGORY_LAST + 1 },
+#ifdef MULE
+ { XD_LISP_OBJECT_ARRAY, offsetof (struct file_coding_dump, ucs_to_mule_table), 65536 },
+#endif
+ { XD_END }
+};
+
+static const struct struct_description fcd_description = {
+ sizeof (struct file_coding_dump),
+ fcd_description_1
+};
+
+Lisp_Object mule_to_ucs_table;
+
+Lisp_Object Qcoding_systemp;
-Lisp_Object Qno_conversion, Qccl, Qiso2022;
+Lisp_Object Qraw_text, Qno_conversion, Qccl, Qiso2022;
/* Qinternal in general.c */
Lisp_Object Qmnemonic, Qeol_type;
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,
+ const unsigned char *src,
unsigned int n);
static void decode_coding_sjis (Lstream *decoding,
- CONST unsigned char *src,
+ const unsigned char *src,
unsigned_char_dynarr *dst,
unsigned int n);
static void encode_coding_sjis (Lstream *encoding,
- CONST unsigned char *src,
+ const unsigned char *src,
unsigned_char_dynarr *dst,
unsigned int n);
static int detect_coding_big5 (struct detection_state *st,
- CONST unsigned char *src,
+ const unsigned char *src,
unsigned int n);
static void decode_coding_big5 (Lstream *decoding,
- CONST unsigned char *src,
+ const unsigned char *src,
unsigned_char_dynarr *dst, unsigned int n);
static void encode_coding_big5 (Lstream *encoding,
- CONST unsigned char *src,
+ const unsigned char *src,
unsigned_char_dynarr *dst, unsigned int n);
static int detect_coding_ucs4 (struct detection_state *st,
- CONST unsigned char *src,
+ const unsigned char *src,
unsigned int n);
static void decode_coding_ucs4 (Lstream *decoding,
- CONST unsigned char *src,
+ const unsigned char *src,
unsigned_char_dynarr *dst, unsigned int n);
static void encode_coding_ucs4 (Lstream *encoding,
- CONST unsigned char *src,
+ const unsigned char *src,
unsigned_char_dynarr *dst, unsigned int n);
static int detect_coding_utf8 (struct detection_state *st,
- CONST unsigned char *src,
+ const unsigned char *src,
unsigned int n);
static void decode_coding_utf8 (Lstream *decoding,
- CONST unsigned char *src,
+ const unsigned char *src,
unsigned_char_dynarr *dst, unsigned int n);
static void encode_coding_utf8 (Lstream *encoding,
- CONST unsigned char *src,
+ const unsigned char *src,
unsigned_char_dynarr *dst, unsigned int 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,
+ const unsigned char *src,
unsigned int n);
static void decode_coding_iso2022 (Lstream *decoding,
- CONST unsigned char *src,
+ const unsigned char *src,
unsigned_char_dynarr *dst, unsigned int n);
static void encode_coding_iso2022 (Lstream *encoding,
- CONST unsigned char *src,
+ const unsigned char *src,
unsigned_char_dynarr *dst, unsigned int n);
#endif /* MULE */
static void decode_coding_no_conversion (Lstream *decoding,
- CONST unsigned char *src,
+ const unsigned char *src,
unsigned_char_dynarr *dst,
unsigned int n);
static void encode_coding_no_conversion (Lstream *encoding,
- CONST unsigned char *src,
+ const unsigned char *src,
unsigned_char_dynarr *dst,
unsigned int n);
-static void mule_decode (Lstream *decoding, CONST unsigned char *src,
+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,
+static void mule_encode (Lstream *encoding, const unsigned char *src,
unsigned_char_dynarr *dst, unsigned int n);
typedef struct codesys_prop codesys_prop;
Dynarr_declare (codesys_prop);
} codesys_prop_dynarr;
+static const struct lrecord_description codesys_prop_description_1[] = {
+ { XD_LISP_OBJECT, offsetof (codesys_prop, sym) },
+ { XD_END }
+};
+
+static const struct struct_description codesys_prop_description = {
+ 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_END }
+};
+
+static const struct struct_description codesys_prop_dynarr_description = {
+ sizeof (codesys_prop_dynarr),
+ codesys_prop_dynarr_description_1
+};
+
codesys_prop_dynarr *the_codesys_prop_dynarr;
enum codesys_prop_enum
/* Coding system functions */
/************************************************************************/
-static Lisp_Object mark_coding_system (Lisp_Object, void (*) (Lisp_Object));
+static Lisp_Object mark_coding_system (Lisp_Object);
static void print_coding_system (Lisp_Object, Lisp_Object, int);
static void finalize_coding_system (void *header, int for_disksave);
+#ifdef MULE
+static const struct lrecord_description ccs_description_1[] = {
+ { 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),
+ ccs_description_1
+};
+
+static const struct lrecord_description ccsd_description_1[] = {
+ XD_DYNARR_DESC (charset_conversion_spec_dynarr, &ccs_description),
+ { XD_END }
+};
+
+static const struct struct_description ccsd_description = {
+ sizeof (charset_conversion_spec_dynarr),
+ ccsd_description_1
+};
+#endif
+
+static const struct lrecord_description coding_system_description[] = {
+ { 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_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 }
+};
+
DEFINE_LRECORD_IMPLEMENTATION ("coding-system", coding_system,
mark_coding_system, print_coding_system,
finalize_coding_system,
- 0, 0, struct Lisp_Coding_System);
+ 0, 0, coding_system_description,
+ Lisp_Coding_System);
static Lisp_Object
-mark_coding_system (Lisp_Object obj, void (*markobj) (Lisp_Object))
+mark_coding_system (Lisp_Object obj)
{
Lisp_Coding_System *codesys = XCODING_SYSTEM (obj);
- markobj (CODING_SYSTEM_NAME (codesys));
- markobj (CODING_SYSTEM_DOC_STRING (codesys));
- markobj (CODING_SYSTEM_MNEMONIC (codesys));
- markobj (CODING_SYSTEM_EOL_LF (codesys));
- markobj (CODING_SYSTEM_EOL_CRLF (codesys));
- markobj (CODING_SYSTEM_EOL_CR (codesys));
+ mark_object (CODING_SYSTEM_NAME (codesys));
+ mark_object (CODING_SYSTEM_DOC_STRING (codesys));
+ mark_object (CODING_SYSTEM_MNEMONIC (codesys));
+ mark_object (CODING_SYSTEM_EOL_LF (codesys));
+ mark_object (CODING_SYSTEM_EOL_CRLF (codesys));
+ mark_object (CODING_SYSTEM_EOL_CR (codesys));
switch (CODING_SYSTEM_TYPE (codesys))
{
int i;
case CODESYS_ISO2022:
for (i = 0; i < 4; i++)
- markobj (CODING_SYSTEM_ISO2022_INITIAL_CHARSET (codesys, i));
+ mark_object (CODING_SYSTEM_ISO2022_INITIAL_CHARSET (codesys, i));
if (codesys->iso2022.input_conv)
{
for (i = 0; i < Dynarr_length (codesys->iso2022.input_conv); i++)
{
struct charset_conversion_spec *ccs =
Dynarr_atp (codesys->iso2022.input_conv, i);
- markobj (ccs->from_charset);
- markobj (ccs->to_charset);
+ mark_object (ccs->from_charset);
+ mark_object (ccs->to_charset);
}
}
if (codesys->iso2022.output_conv)
{
struct charset_conversion_spec *ccs =
Dynarr_atp (codesys->iso2022.output_conv, i);
- markobj (ccs->from_charset);
- markobj (ccs->to_charset);
+ mark_object (ccs->from_charset);
+ mark_object (ccs->to_charset);
}
}
break;
case CODESYS_CCL:
- markobj (CODING_SYSTEM_CCL_DECODE (codesys));
- markobj (CODING_SYSTEM_CCL_ENCODE (codesys));
+ mark_object (CODING_SYSTEM_CCL_DECODE (codesys));
+ mark_object (CODING_SYSTEM_CCL_ENCODE (codesys));
break;
#endif /* MULE */
default:
break;
}
- markobj (CODING_SYSTEM_PRE_WRITE_CONVERSION (codesys));
+ mark_object (CODING_SYSTEM_PRE_WRITE_CONVERSION (codesys));
return CODING_SYSTEM_POST_READ_CONVERSION (codesys);
}
}
}
-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)
{
*/
(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, /*
(struct coding_system_list_closure *) coding_system_list_closure;
Lisp_Object *coding_system_list = cscl->coding_system_list;
- *coding_system_list = Fcons (XCODING_SYSTEM (value)->name,
- *coding_system_list);
+ *coding_system_list = Fcons (key, *coding_system_list);
return 0;
}
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);
+}
+
+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;
}
- /* FSF return value is a vector of [ALIAS-unix ALIAS-doc ALIAS-mac],
+
+ 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. */
return Qnil;
}
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;
order. */
for (j = 0; j <= CODING_CATEGORY_LAST; j++)
{
- int cat = coding_category_by_priority[j];
+ int cat = fcd->coding_category_by_priority[j];
if (category_to_priority[cat] < 0)
category_to_priority[cat] = i++;
}
constructed. */
for (i = 0; i <= CODING_CATEGORY_LAST; i++)
- coding_category_by_priority[category_to_priority[i]] = i;
+ fcd->coding_category_by_priority[category_to_priority[i]] = i;
/* Phew! That was confusing. */
return Qnil;
Lisp_Object list = Qnil;
for (i = CODING_CATEGORY_LAST; i >= 0; i--)
- list = Fcons (coding_category_symbol[coding_category_by_priority[i]],
+ list = Fcons (coding_category_symbol[fcd->coding_category_by_priority[i]],
list);
return list;
}
int cat = decode_coding_category (coding_category);
coding_system = Fget_coding_system (coding_system);
- coding_category_system[cat] = coding_system;
+ fcd->coding_category_system[cat] = coding_system;
return Qnil;
}
(coding_category))
{
int cat = decode_coding_category (coding_category);
- Lisp_Object sys = coding_category_system[cat];
+ Lisp_Object sys = fcd->coding_category_system[cat];
if (!NILP (sys))
return XCODING_SYSTEM_NAME (sys);
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,
+static eol_type_t
+detect_eol_type (struct detection_state *st, const unsigned char *src,
unsigned int n)
{
int c;
while (n--)
{
c = *src++;
- if (c == '\r')
- st->eol.just_saw_cr = 1;
- else
+ if (c == '\n')
{
- if (c == '\n')
- {
- if (st->eol.just_saw_cr)
- return EOL_CRLF;
- else if (st->eol.seen_anything)
- return EOL_LF;
- }
- else if (st->eol.just_saw_cr)
- return EOL_CR;
- st->eol.just_saw_cr = 0;
+ if (st->eol.just_saw_cr)
+ return EOL_CRLF;
+ else if (st->eol.seen_anything)
+ return EOL_LF;
}
+ else if (st->eol.just_saw_cr)
+ return EOL_CR;
+ else if (c == '\r')
+ st->eol.just_saw_cr = 1;
+ else
+ st->eol.just_saw_cr = 0;
st->eol.seen_anything = 1;
}
*/
static int
-detect_coding_type (struct detection_state *st, CONST unsigned char *src,
+detect_coding_type (struct detection_state *st, const Extbyte *src,
unsigned int n, int just_do_eol)
{
int c;
}
}
if (NILP (retval))
- retval = Fget_coding_system (Qno_conversion);
+ retval = Fget_coding_system (Qraw_text);
return retval;
}
else
the first one that is allowed. */
for (i = 0; i <= CODING_CATEGORY_LAST; i++)
{
- cat = coding_category_by_priority[i];
+ cat = fcd->coding_category_by_priority[i];
if ((mask & (1 << cat)) &&
- !NILP (coding_category_system[cat]))
+ !NILP (fcd->coding_category_system[cat]))
break;
}
if (cat >= 0)
- return coding_category_system[cat];
+ return fcd->coding_category_system[cat];
else
- return Fget_coding_system (Qno_conversion);
+ return Fget_coding_system (Qraw_text);
}
}
/* Given a seekable read stream and potential coding system and EOL type
as specified, do any autodetection that is called for. If the
- coding system and/or EOL type are not autodetect, they will be left
+ coding system and/or EOL type are not `autodetect', they will be left
alone; but this function will never return an autodetect coding system
or EOL type.
This function does not automatically fetch subsidiary coding systems;
that should be unnecessary with the explicit eol-type argument. */
+#define LENGTH(string_constant) (sizeof (string_constant) - 1)
+
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;
decst.mask = ~0;
/* If autodetection is called for, do it now. */
- if (XCODING_SYSTEM_TYPE (*codesys_in_out) == CODESYS_AUTODETECT ||
- *eol_type_in_out == EOL_AUTODETECT)
+ if (XCODING_SYSTEM_TYPE (*codesys_in_out) == CODESYS_AUTODETECT
+ || *eol_type_in_out == EOL_AUTODETECT)
{
+ Extbyte buf[4096];
+ Lisp_Object coding_system = Qnil;
+ Extbyte *p;
+ ssize_t nread = Lstream_read (stream, buf, sizeof (buf));
+ Extbyte *scan_end;
+
+ /* Look for initial "-*-"; mode line prefix */
+ for (p = buf,
+ scan_end = buf + nread - LENGTH ("-*-coding:?-*-");
+ p <= scan_end
+ && *p != '\n'
+ && *p != '\r';
+ p++)
+ if (*p == '-' && *(p+1) == '*' && *(p+2) == '-')
+ {
+ Extbyte *local_vars_beg = p + 3;
+ /* Look for final "-*-"; mode line suffix */
+ for (p = local_vars_beg,
+ scan_end = buf + nread - LENGTH ("-*-");
+ p <= scan_end
+ && *p != '\n'
+ && *p != '\r';
+ p++)
+ if (*p == '-' && *(p+1) == '*' && *(p+2) == '-')
+ {
+ Extbyte *suffix = p;
+ /* Look for "coding:" */
+ for (p = local_vars_beg,
+ scan_end = suffix - LENGTH ("coding:?");
+ p <= scan_end;
+ p++)
+ if (memcmp ("coding:", p, LENGTH ("coding:")) == 0
+ && (p == local_vars_beg
+ || (*(p-1) == ' ' ||
+ *(p-1) == '\t' ||
+ *(p-1) == ';')))
+ {
+ Extbyte save;
+ int n;
+ p += LENGTH ("coding:");
+ while (*p == ' ' || *p == '\t') p++;
+
+ /* Get coding system name */
+ save = *suffix; *suffix = '\0';
+ /* Characters valid in a MIME charset name (rfc 1521),
+ and in a Lisp symbol name. */
+ n = strspn ( (char *) p,
+ "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
+ "abcdefghijklmnopqrstuvwxyz"
+ "0123456789"
+ "!$%&*+-.^_{|}~");
+ *suffix = save;
+ if (n > 0)
+ {
+ save = p[n]; p[n] = '\0';
+ coding_system =
+ Ffind_coding_system (intern ((char *) p));
+ p[n] = save;
+ }
+ break;
+ }
+ break;
+ }
+ break;
+ }
- while (1)
- {
- unsigned char random_buffer[4096];
- int nread;
+ if (NILP (coding_system))
+ do
+ {
+ if (detect_coding_type (&decst, buf, nread,
+ XCODING_SYSTEM_TYPE (*codesys_in_out)
+ != CODESYS_AUTODETECT))
+ break;
+ nread = Lstream_read (stream, buf, sizeof (buf));
+ if (nread == 0)
+ break;
+ }
+ while (1);
- nread = Lstream_read (stream, random_buffer, sizeof (random_buffer));
- if (!nread)
- break;
- if (detect_coding_type (&decst, random_buffer, nread,
- XCODING_SYSTEM_TYPE (*codesys_in_out) !=
- CODESYS_AUTODETECT))
- break;
- }
+ else if (XCODING_SYSTEM_TYPE (*codesys_in_out) == CODESYS_AUTODETECT
+ && XCODING_SYSTEM_EOL_TYPE (coding_system) == EOL_AUTODETECT)
+ do
+ {
+ if (detect_coding_type (&decst, buf, nread, 1))
+ break;
+ nread = Lstream_read (stream, buf, sizeof (buf));
+ if (!nread)
+ break;
+ }
+ while (1);
*eol_type_in_out = decst.eol_type;
if (XCODING_SYSTEM_TYPE (*codesys_in_out) == CODESYS_AUTODETECT)
- *codesys_in_out = coding_system_from_mask (decst.mask);
+ {
+ if (NILP (coding_system))
+ *codesys_in_out = coding_system_from_mask (decst.mask);
+ else
+ *codesys_in_out = coding_system;
+ }
}
/* If we absolutely can't determine the EOL type, just assume LF. */
while (1)
{
unsigned char random_buffer[4096];
- int nread = Lstream_read (istr, random_buffer, sizeof (random_buffer));
+ ssize_t nread = Lstream_read (istr, random_buffer, sizeof (random_buffer));
if (!nread)
break;
#endif
for (i = CODING_CATEGORY_LAST; i >= 0; i--)
{
- int sys = coding_category_by_priority[i];
+ int sys = fcd->coding_category_by_priority[i];
if (decst.mask & (1 << sys))
{
- Lisp_Object codesys = coding_category_system[sys];
+ Lisp_Object codesys = fcd->coding_category_system[sys];
if (!NILP (codesys))
codesys = subsidiary_coding_system (codesys, decst.eol_type);
val = Fcons (codesys, val);
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. */
/* Additional information (the state of the running CCL program)
used by the CCL decoder. */
struct ccl_program ccl;
+
+ /* counter for UTF-8 or UCS-4 */
+ unsigned char counter;
#endif
struct detection_state decst;
};
-static int decoding_reader (Lstream *stream, unsigned char *data, size_t size);
-static int decoding_writer (Lstream *stream, CONST unsigned char *data, size_t size);
+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 int decoding_rewinder (Lstream *stream);
static int decoding_seekable_p (Lstream *stream);
static int decoding_flusher (Lstream *stream);
static int decoding_closer (Lstream *stream);
-static Lisp_Object decoding_marker (Lisp_Object stream,
- void (*markobj) (Lisp_Object));
+static Lisp_Object decoding_marker (Lisp_Object stream);
DEFINE_LSTREAM_IMPLEMENTATION ("decoding", lstream_decoding,
sizeof (struct decoding_stream));
static Lisp_Object
-decoding_marker (Lisp_Object stream, void (*markobj) (Lisp_Object))
+decoding_marker (Lisp_Object stream)
{
Lstream *str = DECODING_STREAM_DATA (XLSTREAM (stream))->other_end;
Lisp_Object str_obj;
and automatically marked. */
XSETLSTREAM (str_obj, str);
- markobj (str_obj);
+ mark_object (str_obj);
if (str->imp->marker)
- return (str->imp->marker) (str_obj, markobj);
+ return (str->imp->marker) (str_obj);
else
return Qnil;
}
/* 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 int
+static ssize_t
decoding_reader (Lstream *stream, unsigned char *data, size_t size)
{
struct decoding_stream *str = DECODING_STREAM_DATA (stream);
unsigned char *orig_data = data;
- int read_size;
+ ssize_t read_size;
int error_occurred = 0;
/* We need to interface to mule_decode(), which expects to take some
return data - orig_data;
}
-static int
-decoding_writer (Lstream *stream, CONST unsigned char *data, size_t size)
+static ssize_t
+decoding_writer (Lstream *stream, const unsigned char *data, size_t size)
{
struct decoding_stream *str = DECODING_STREAM_DATA (stream);
- int retval;
+ ssize_t 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
{
setup_ccl_program (&str->ccl, CODING_SYSTEM_CCL_DECODE (str->codesys));
}
+ str->counter = 0;
#endif /* MULE */
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,
+mule_decode (Lstream *decoding, const unsigned char *src,
unsigned_char_dynarr *dst, unsigned int n)
{
struct decoding_stream *str = DECODING_STREAM_DATA (decoding);
decode_coding_utf8 (decoding, src, dst, n);
break;
case CODESYS_CCL:
- ccl_driver (&str->ccl, src, dst, n, 0);
+ str->ccl.last_block = str->flags & CODING_STATE_END;
+ ccl_driver (&str->ccl, src, dst, n, 0, CCL_MODE_DECODING);
break;
case CODESYS_ISO2022:
decode_coding_iso2022 (decoding, src, dst, n);
char tempbuf[1024]; /* some random amount */
Bufpos newpos, even_newer_pos;
Bufpos oldpos = lisp_buffer_stream_startpos (istr);
- int size_in_bytes = Lstream_read (istr, tempbuf, sizeof (tempbuf));
+ ssize_t size_in_bytes = Lstream_read (istr, tempbuf, sizeof (tempbuf));
if (!size_in_bytes)
break;
#endif /* MULE */
};
-static int encoding_reader (Lstream *stream, unsigned char *data, size_t size);
-static int encoding_writer (Lstream *stream, CONST unsigned char *data,
- size_t size);
+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 int encoding_rewinder (Lstream *stream);
static int encoding_seekable_p (Lstream *stream);
static int encoding_flusher (Lstream *stream);
static int encoding_closer (Lstream *stream);
-static Lisp_Object encoding_marker (Lisp_Object stream,
- void (*markobj) (Lisp_Object));
+static Lisp_Object encoding_marker (Lisp_Object stream);
DEFINE_LSTREAM_IMPLEMENTATION ("encoding", lstream_encoding,
sizeof (struct encoding_stream));
static Lisp_Object
-encoding_marker (Lisp_Object stream, void (*markobj) (Lisp_Object))
+encoding_marker (Lisp_Object stream)
{
Lstream *str = ENCODING_STREAM_DATA (XLSTREAM (stream))->other_end;
Lisp_Object str_obj;
and automatically marked. */
XSETLSTREAM (str_obj, str);
- markobj (str_obj);
+ mark_object (str_obj);
if (str->imp->marker)
- return (str->imp->marker) (str_obj, markobj);
+ return (str->imp->marker) (str_obj);
else
return Qnil;
}
/* 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 int
+static ssize_t
encoding_reader (Lstream *stream, unsigned char *data, size_t size)
{
struct encoding_stream *str = ENCODING_STREAM_DATA (stream);
unsigned char *orig_data = data;
- int read_size;
+ ssize_t read_size;
int error_occurred = 0;
/* We need to interface to mule_encode(), which expects to take some
return data - orig_data;
}
-static int
-encoding_writer (Lstream *stream, CONST unsigned char *data, size_t size)
+static ssize_t
+encoding_writer (Lstream *stream, const unsigned char *data, size_t size)
{
struct encoding_stream *str = ENCODING_STREAM_DATA (stream);
- int retval;
+ ssize_t 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
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,
+mule_encode (Lstream *encoding, const unsigned char *src,
unsigned_char_dynarr *dst, unsigned int n)
{
struct encoding_stream *str = ENCODING_STREAM_DATA (encoding);
encode_coding_utf8 (encoding, src, dst, n);
break;
case CODESYS_CCL:
- ccl_driver (&str->ccl, src, dst, n, 0);
+ str->ccl.last_block = str->flags & CODING_STATE_END;
+ ccl_driver (&str->ccl, src, dst, n, 0, CCL_MODE_ENCODING);
break;
case CODESYS_ISO2022:
encode_coding_iso2022 (encoding, src, dst, n);
char tempbuf[1024]; /* some random amount */
Bufpos newpos, even_newer_pos;
Bufpos oldpos = lisp_buffer_stream_startpos (istr);
- int size_in_bytes = Lstream_read (istr, tempbuf, sizeof (tempbuf));
+ ssize_t 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,
+detect_coding_sjis (struct detection_state *st, const unsigned char *src,
unsigned int n)
{
int c;
/* Convert Shift-JIS data to internal format. */
static void
-decode_coding_sjis (Lstream *decoding, CONST unsigned char *src,
+decode_coding_sjis (Lstream *decoding, const unsigned char *src,
unsigned_char_dynarr *dst, unsigned int n)
{
unsigned char c;
/* Convert internally-formatted data to Shift-JIS. */
static void
-encode_coding_sjis (Lstream *encoding, CONST unsigned char *src,
+encode_coding_sjis (Lstream *encoding, const unsigned char *src,
unsigned_char_dynarr *dst, unsigned int n)
{
unsigned char c;
} while (0)
static int
-detect_coding_big5 (struct detection_state *st, CONST unsigned char *src,
+detect_coding_big5 (struct detection_state *st, const unsigned char *src,
unsigned int n)
{
int c;
/* Convert Big5 data to internal format. */
static void
-decode_coding_big5 (Lstream *decoding, CONST unsigned char *src,
+decode_coding_big5 (Lstream *decoding, const unsigned char *src,
unsigned_char_dynarr *dst, unsigned int n)
{
unsigned char c;
/* Convert internally-formatted data to Big5. */
static void
-encode_coding_big5 (Lstream *encoding, CONST unsigned char *src,
+encode_coding_big5 (Lstream *encoding, const unsigned char *src,
unsigned_char_dynarr *dst, unsigned int n)
{
unsigned char c;
/* */
/************************************************************************/
-Lisp_Object ucs_to_mule_table[65536];
-Lisp_Object mule_to_ucs_table;
DEFUN ("set-ucs-char", Fset_ucs_char, 2, 2, 0, /*
Map UCS-4 code CODE to Mule character CHARACTER.
CHECK_INT (code);
c = XINT (code);
- if (c < sizeof (ucs_to_mule_table))
+ if (c < sizeof (fcd->ucs_to_mule_table))
{
- ucs_to_mule_table[c] = character;
+ fcd->ucs_to_mule_table[c] = character;
return Qt;
}
else
static Lisp_Object
ucs_to_char (unsigned long code)
{
- if (code < sizeof (ucs_to_mule_table))
+ if (code < sizeof (fcd->ucs_to_mule_table))
{
- return ucs_to_mule_table[code];
+ return fcd->ucs_to_mule_table[code];
}
else if ((0xe00000 <= code) && (code <= 0xe00000 + 94 * 94 * 14))
{
}
static int
-detect_coding_ucs4 (struct detection_state *st, CONST unsigned char *src,
+detect_coding_ucs4 (struct detection_state *st, const unsigned char *src,
unsigned int n)
{
while (n--)
}
static void
-decode_coding_ucs4 (Lstream *decoding, CONST unsigned char *src,
+decode_coding_ucs4 (Lstream *decoding, const unsigned char *src,
unsigned_char_dynarr *dst, unsigned int n)
{
struct decoding_stream *str = DECODING_STREAM_DATA (decoding);
unsigned int flags = str->flags;
unsigned int ch = str->ch;
+ unsigned char counter = str->counter;
while (n--)
{
unsigned char c = *src++;
- switch (flags)
+ switch (counter)
{
case 0:
ch = c;
- flags = 3;
+ counter = 3;
break;
case 1:
decode_ucs4 ( ( ch << 8 ) | c, dst);
ch = 0;
- flags = 0;
+ counter = 0;
break;
default:
ch = ( ch << 8 ) | c;
- flags--;
+ counter--;
}
}
- if (flags & CODING_STATE_END)
+ if (counter & CODING_STATE_END)
DECODE_OUTPUT_PARTIAL_CHAR (ch);
str->flags = flags;
str->ch = ch;
+ str->counter = counter;
}
static void
-encode_coding_ucs4 (Lstream *encoding, CONST unsigned char *src,
+encode_coding_ucs4 (Lstream *encoding, const unsigned char *src,
unsigned_char_dynarr *dst, unsigned int n)
{
struct encoding_stream *str = ENCODING_STREAM_DATA (encoding);
/* 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:
/************************************************************************/
static int
-detect_coding_utf8 (struct detection_state *st, CONST unsigned char *src,
+detect_coding_utf8 (struct detection_state *st, const unsigned char *src,
unsigned int n)
{
while (n--)
}
static void
-decode_coding_utf8 (Lstream *decoding, CONST unsigned char *src,
+decode_coding_utf8 (Lstream *decoding, const unsigned char *src,
unsigned_char_dynarr *dst, unsigned int n)
{
struct decoding_stream *str = DECODING_STREAM_DATA (decoding);
unsigned int flags = str->flags;
unsigned int ch = str->ch;
eol_type_t eol_type = str->eol_type;
+ unsigned char counter = str->counter;
while (n--)
{
unsigned char c = *src++;
- switch (flags)
+ switch (counter)
{
case 0:
if ( c >= 0xfc )
{
ch = c & 0x01;
- flags = 5;
+ counter = 5;
}
else if ( c >= 0xf8 )
{
ch = c & 0x03;
- flags = 4;
+ counter = 4;
}
else if ( c >= 0xf0 )
{
ch = c & 0x07;
- flags = 3;
+ counter = 3;
}
else if ( c >= 0xe0 )
{
ch = c & 0x0f;
- flags = 2;
+ counter = 2;
}
else if ( c >= 0xc0 )
{
ch = c & 0x1f;
- flags = 1;
+ counter = 1;
}
else
{
ch = ( ch << 6 ) | ( c & 0x3f );
decode_ucs4 (ch, dst);
ch = 0;
- flags = 0;
+ counter = 0;
break;
default:
ch = ( ch << 6 ) | ( c & 0x3f );
- flags--;
+ counter--;
}
label_continue_loop:;
}
str->flags = flags;
str->ch = ch;
+ str->counter = counter;
}
static void
}
static void
-encode_coding_utf8 (Lstream *encoding, CONST unsigned char *src,
+encode_coding_utf8 (Lstream *encoding, const unsigned char *src,
unsigned_char_dynarr *dst, unsigned int n)
{
struct encoding_stream *str = ENCODING_STREAM_DATA (encoding);
/* 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:
#endif /* ENABLE_COMPOSITE_CHARS */
-
+
while (n--)
{
unsigned char c = *src++;
}
static int
-detect_coding_iso2022 (struct detection_state *st, CONST unsigned char *src,
+detect_coding_iso2022 (struct detection_state *st, const unsigned char *src,
unsigned int n)
{
int mask;
/* Convert ISO2022-format data to internal format. */
static void
-decode_coding_iso2022 (Lstream *decoding, CONST unsigned char *src,
+decode_coding_iso2022 (Lstream *decoding, const unsigned char *src,
unsigned_char_dynarr *dst, unsigned int n)
{
struct decoding_stream *str = DECODING_STREAM_DATA (decoding);
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,
+encode_coding_iso2022 (Lstream *encoding, const unsigned char *src,
unsigned_char_dynarr *dst, unsigned int n)
{
unsigned char charmask, c;
/* 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 */
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,
+decode_coding_no_conversion (Lstream *decoding, const unsigned char *src,
unsigned_char_dynarr *dst, unsigned int n)
{
unsigned char c;
}
static void
-encode_coding_no_conversion (Lstream *encoding, CONST unsigned char *src,
+encode_coding_no_conversion (Lstream *encoding, const unsigned char *src,
unsigned_char_dynarr *dst, unsigned int n)
{
unsigned char c;
}
\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);
-#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)
- {
- int 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)
- {
- int 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_mule_coding (void)
+syms_of_file_coding (void)
{
- defsymbol (&Qbuffer_file_coding_system, "buffer-file-coding-system");
deferror (&Qcoding_system_error, "coding-system-error",
"Coding-system error", Qio_error);
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 (Fset_char_ucs);
DEFSUBR (Fchar_ucs);
#endif /* MULE */
- defsymbol (&Qcoding_system_p, "coding-system-p");
+ defsymbol (&Qcoding_systemp, "coding-system-p");
defsymbol (&Qno_conversion, "no-conversion");
+ defsymbol (&Qraw_text, "raw-text");
#ifdef MULE
defsymbol (&Qbig5, "big5");
defsymbol (&Qshift_jis, "shift-jis");
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],
}
void
-lstream_type_create_mule_coding (void)
+lstream_type_create_file_coding (void)
{
LSTREAM_HAS_METHOD (decoding, reader);
LSTREAM_HAS_METHOD (decoding, writer);
}
void
-vars_of_mule_coding (void)
+vars_of_file_coding (void)
{
int i;
+ fcd = xnew (struct file_coding_dump);
+ dumpstruct (&fcd, &fcd_description);
+
/* Initialize to something reasonable ... */
for (i = 0; i <= CODING_CATEGORY_LAST; i++)
{
- coding_category_system[i] = Qnil;
- coding_category_by_priority[i] = i;
+ fcd->coding_category_system[i] = Qnil;
+ fcd->coding_category_by_priority[i] = i;
}
Fprovide (intern ("file-coding"));
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 /*
}
void
-complex_vars_of_mule_coding (void)
+complex_vars_of_file_coding (void)
{
staticpro (&Vcoding_system_hash_table);
Vcoding_system_hash_table =
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);
#define DEFINE_CODESYS_PROP(Prop_Type, Sym) do \
{ \
DEFINE_CODESYS_PROP (CODESYS_PROP_CCL, Qdecode);
#endif /* MULE */
/* Need to create this here or we're really screwed. */
- Fmake_coding_system (Qno_conversion, Qno_conversion, build_string ("No conversion"),
- list2 (Qmnemonic, build_string ("Noconv")));
+ Fmake_coding_system
+ (Qraw_text, Qno_conversion,
+ build_string ("Raw text, which means it converts only line-break-codes."),
+ list2 (Qmnemonic, build_string ("Raw")));
+
+ Fmake_coding_system
+ (Qbinary, Qno_conversion,
+ build_string ("Binary, which means it does not convert anything."),
+ list4 (Qeol_type, Qlf,
+ Qmnemonic, build_string ("Binary")));
+
+ Fdefine_coding_system_alias (Qno_conversion, Qraw_text);
+
+ Fdefine_coding_system_alias (Qfile_name, Qbinary);
- Fcopy_coding_system (Fcoding_system_property (Qno_conversion, Qeol_lf),
- Qbinary);
+ Fdefine_coding_system_alias (Qterminal, Qbinary);
+ Fdefine_coding_system_alias (Qkeyboard, Qbinary);
/* Need this for bootstrapping */
- coding_category_system[CODING_CATEGORY_NO_CONVERSION] =
- Fget_coding_system (Qno_conversion);
+ fcd->coding_category_system[CODING_CATEGORY_NO_CONVERSION] =
+ Fget_coding_system (Qraw_text);
#ifdef MULE
{
unsigned int i;
for (i = 0; i < 65536; i++)
- ucs_to_mule_table[i] = Qnil;
+ fcd->ucs_to_mule_table[i] = Qnil;
}
staticpro (&mule_to_ucs_table);
mule_to_ucs_table = Fmake_char_table(Qgeneric);
projects / chise / xemacs-chise.git.1 / blobdiff