/* Header for coding system handler.
- Copyright (C) 2001-2011 Free Software Foundation, Inc.
+ Copyright (C) 2001-2012 Free Software Foundation, Inc.
Copyright (C) 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004,
2005, 2006, 2007, 2008, 2009, 2010, 2011
National Institute of Advanced Industrial Science and Technology (AIST)
#define CODING_ATTR_PRE_WRITE(attrs) AREF (attrs, coding_attr_pre_write)
#define CODING_ATTR_DEFAULT_CHAR(attrs) AREF (attrs, coding_attr_default_char)
#define CODING_ATTR_FOR_UNIBYTE(attrs) AREF (attrs, coding_attr_for_unibyte)
-#define CODING_ATTR_FLUSHING(attrs) AREF (attrs, coding_attr_flushing)
#define CODING_ATTR_PLIST(attrs) AREF (attrs, coding_attr_plist)
#define CODING_ATTR_CATEGORY(attrs) AREF (attrs, coding_attr_category)
#define CODING_ATTR_SAFE_CHARSETS(attrs)AREF (attrs, coding_attr_safe_charsets)
{
enum composition_state state;
enum composition_method method;
- int old_form; /* 0:pre-21 form, 1:post-21 form */
+ bool old_form; /* true if pre-21 form */
int length; /* number of elements produced in charbuf */
int nchars; /* number of characters composed */
int ncomps; /* number of composition components */
there was an invalid designation previously. */
int current_designation[4];
- /* Set to 1 temporarily only when graphic register 2 or 3 is invoked
- by single-shift while encoding. */
- int single_shifting;
-
- /* Set to 1 temporarily only when processing at beginning of line. */
- int bol;
-
/* If positive, we are now scanning CTEXT extended segment. */
int ctext_extended_segment_len;
- /* If nonzero, we are now scanning embedded UTF-8 sequence. */
- int embedded_utf_8;
+ /* True temporarily only when graphic register 2 or 3 is invoked by
+ single-shift while encoding. */
+ unsigned single_shifting : 1;
+
+ /* True temporarily only when processing at beginning of line. */
+ unsigned bol : 1;
+
+ /* If true, we are now scanning embedded UTF-8 sequence. */
+ unsigned embedded_utf_8 : 1;
/* The current composition. */
struct composition_status cmp_status;
struct emacs_mule_spec
{
- int full_support;
struct composition_status cmp_status;
};
/* Number of error source data found in a decoding routine. */
int errors;
- /* Store the positions of error source data. */
+ /* Store the positions of error source data. */
ptrdiff_t *error_positions;
/* Finish status of code conversion. */
Lisp_Object dst_object;
unsigned char *destination;
- /* Set to 1 if the source of conversion is not in the member
- `charbuf', but at `src_object'. */
- int chars_at_source;
-
/* If an element is non-negative, it is a character code.
If it is in the range -128..-1, it is a 8-bit character code
element. The following elements are OFFSET, ANNOTATION-TYPE, and
a sequence of actual data for the annotation. OFFSET is a
character position offset from dst_pos or src_pos,
- ANNOTATION-TYPE specfies the meaning of the annotation and how to
+ ANNOTATION-TYPE specifies the meaning of the annotation and how to
handle the following data.. */
int *charbuf;
int charbuf_size, charbuf_used;
+ /* True if the source of conversion is not in the member
+ `charbuf', but at `src_object'. */
+ unsigned chars_at_source : 1;
+
/* Set to 1 if charbuf contains an annotation. */
- int annotated;
+ unsigned annotated : 1;
unsigned char carryover[64];
int carryover_bytes;
int default_char;
- int (*detector) (struct coding_system *,
- struct coding_detection_info *);
+ bool (*detector) (struct coding_system *, struct coding_detection_info *);
void (*decoder) (struct coding_system *);
- int (*encoder) (struct coding_system *);
+ bool (*encoder) (struct coding_system *);
};
/* Meanings of bits in the member `common_flags' of the structure
#define CODING_REQUIRE_DETECTION_MASK 0x1000
#define CODING_RESET_AT_BOL_MASK 0x2000
-/* Return 1 if the coding context CODING requires annotaion
+/* Return 1 if the coding context CODING requires annotation
handling. */
#define CODING_REQUIRE_ANNOTATION(coding) \
((coding)->common_flags & CODING_ANNOTATION_MASK)
for file names, if any. */
#define ENCODE_FILE(name) \
(! NILP (Vfile_name_coding_system) \
- && !EQ (Vfile_name_coding_system, make_number (0)) \
? code_convert_string_norecord (name, Vfile_name_coding_system, 1) \
: (! NILP (Vdefault_file_name_coding_system) \
- && !EQ (Vdefault_file_name_coding_system, make_number (0)) \
? code_convert_string_norecord (name, Vdefault_file_name_coding_system, 1) \
: name))
for file names, if any. */
#define DECODE_FILE(name) \
(! NILP (Vfile_name_coding_system) \
- && !EQ (Vfile_name_coding_system, make_number (0)) \
? code_convert_string_norecord (name, Vfile_name_coding_system, 0) \
: (! NILP (Vdefault_file_name_coding_system) \
- && !EQ (Vdefault_file_name_coding_system, make_number (0)) \
? code_convert_string_norecord (name, Vdefault_file_name_coding_system, 0) \
: name))
for system functions, if any. */
#define ENCODE_SYSTEM(str) \
(! NILP (Vlocale_coding_system) \
- && !EQ (Vlocale_coding_system, make_number (0)) \
? code_convert_string_norecord (str, Vlocale_coding_system, 1) \
: str)
for system functions, if any. */
#define DECODE_SYSTEM(str) \
(! NILP (Vlocale_coding_system) \
- && !EQ (Vlocale_coding_system, make_number (0)) \
? code_convert_string_norecord (str, Vlocale_coding_system, 0) \
: str)
#define ENCODE_UTF_8(str) code_convert_string_norecord (str, Qutf_8, 1)
/* Extern declarations. */
-extern Lisp_Object code_conversion_save (int, int);
-extern int decoding_buffer_size (struct coding_system *, int);
-extern int encoding_buffer_size (struct coding_system *, int);
+extern Lisp_Object code_conversion_save (bool, bool);
extern void setup_coding_system (Lisp_Object, struct coding_system *);
extern Lisp_Object coding_charset_list (struct coding_system *);
extern Lisp_Object coding_system_charset_list (Lisp_Object);
extern Lisp_Object code_convert_string (Lisp_Object, Lisp_Object,
- Lisp_Object, int, int, int);
+ Lisp_Object, bool, bool, bool);
extern Lisp_Object code_convert_string_norecord (Lisp_Object, Lisp_Object,
- int);
+ bool);
extern Lisp_Object raw_text_coding_system (Lisp_Object);
extern Lisp_Object coding_inherit_eol_type (Lisp_Object, Lisp_Object);
extern Lisp_Object complement_process_encoding_system (Lisp_Object);
-extern int decode_coding_gap (struct coding_system *,
- ptrdiff_t, ptrdiff_t);
+extern void decode_coding_gap (struct coding_system *,
+ ptrdiff_t, ptrdiff_t);
extern void decode_coding_object (struct coding_system *,
Lisp_Object, ptrdiff_t, ptrdiff_t,
ptrdiff_t, ptrdiff_t, Lisp_Object);
Lisp_Object, ptrdiff_t, ptrdiff_t,
ptrdiff_t, ptrdiff_t, Lisp_Object);
+#if defined (WINDOWSNT) || defined (CYGWIN)
+
+/* These functions use Lisp string objects to store the UTF-16LE
+ strings that modern versions of Windows expect. These strings are
+ not particularly useful to Lisp, and all Lisp strings should be
+ native Emacs multibyte. */
+
+/* Access the wide-character string stored in a Lisp string object. */
+#define WCSDATA(x) ((wchar_t *) SDATA (x))
+
+/* Convert the multi-byte string in STR to UTF-16LE encoded unibyte
+ string, and store it in *BUF. BUF may safely point to STR on entry. */
+extern wchar_t *to_unicode (Lisp_Object str, Lisp_Object *buf);
+
+/* Convert STR, a UTF-16LE encoded string embedded in a unibyte string
+ object, to a multi-byte Emacs string and return it. This function
+ calls code_convert_string_norecord internally and has all its
+ failure modes. STR itself is not modified. */
+extern Lisp_Object from_unicode (Lisp_Object str);
+
+#endif /* WINDOWSNT || CYGWIN */
+
/* Macros for backward compatibility. */
#define decode_coding_region(coding, from, to) \
extern Lisp_Object Qcoding_system_error;
extern char emacs_mule_bytes[256];
-extern int emacs_mule_string_char (unsigned char *);
#endif /* EMACS_CODING_H */