/* Header for coding system handler.
Copyright (C) 2001, 2002, 2003, 2004, 2005,
- 2006, 2007, 2008 Free Software Foundation, Inc.
+ 2006, 2007, 2008, 2009, 2010 Free Software Foundation, Inc.
Copyright (C) 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004,
- 2005, 2006, 2007, 2008
+ 2005, 2006, 2007, 2008, 2009, 2010
National Institute of Advanced Industrial Science and Technology (AIST)
Registration Number H14PRO021
Copyright (C) 2003
This file is part of GNU Emacs.
-GNU Emacs is free software; you can redistribute it and/or modify
+GNU Emacs is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
-the Free Software Foundation; either version 3, or (at your option)
-any later version.
+the Free Software Foundation, either version 3 of the License, or
+(at your option) any later version.
GNU Emacs is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
-along with GNU Emacs; see the file COPYING. If not, write to
-the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
-Boston, MA 02110-1301, USA. */
+along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */
#ifndef EMACS_CODING_H
#define EMACS_CODING_H
coding_arg_iso2022_max
};
+enum define_coding_utf8_arg_index
+ {
+ coding_arg_utf8_bom = coding_arg_max,
+ coding_arg_utf8_max
+ };
+
enum define_coding_utf16_arg_index
{
coding_arg_utf16_bom = coding_arg_max,
coding_attr_iso_request,
coding_attr_iso_flags,
- coding_attr_utf_16_bom,
+ coding_attr_utf_bom,
coding_attr_utf_16_endian,
coding_attr_emacs_mule_full,
spec = CODING_SYSTEM_SPEC (x); \
} \
if (NILP (spec)) \
- x = wrong_type_argument (Qcoding_system_p, (x)); \
+ wrong_type_argument (Qcoding_system_p, (x)); \
} while (0)
id = CODING_SYSTEM_ID (x); \
} \
if (id < 0) \
- x = wrong_type_argument (Qcoding_system_p, (x)); \
+ wrong_type_argument (Qcoding_system_p, (x)); \
} while (0)
ASCII characters (usually '?') for unsupported characters. */
#define CODING_MODE_SAFE_ENCODING 0x20
+ /* For handling composition sequence. */
+#include "composite.h"
+
+enum composition_state
+ {
+ COMPOSING_NO,
+ COMPOSING_CHAR,
+ COMPOSING_RULE,
+ COMPOSING_COMPONENT_CHAR,
+ COMPOSING_COMPONENT_RULE
+ };
+
+/* Structure for the current composition status. */
+struct composition_status
+{
+ enum composition_state state;
+ enum composition_method method;
+ int old_form; /* 0:pre-21 form, 1:post-21 form */
+ int length; /* number of elements produced in charbuf */
+ int nchars; /* number of characters composed */
+ int ncomps; /* number of composition components */
+ /* Maximum carryover is for the case of COMPOSITION_WITH_RULE_ALTCHARS.
+ See the comment in coding.c. */
+ int carryover[4 /* annotation header */
+ + MAX_COMPOSITION_COMPONENTS * 3 - 2 /* ALTs and RULEs */
+ + 2 /* intermediate -1 -1 */
+ + MAX_COMPOSITION_COMPONENTS /* CHARs */
+ ];
+};
+
+
/* Structure of the field `spec.iso_2022' in the structure
`coding_system'. */
struct iso_2022_spec
/* 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;
+
+ /* The current composition. */
+ struct composition_status cmp_status;
+};
+
+struct emacs_mule_spec
+{
+ int full_support;
+ struct composition_status cmp_status;
};
struct ccl_spec;
-enum utf_16_bom_type
+enum utf_bom_type
{
- utf_16_detect_bom,
- utf_16_without_bom,
- utf_16_with_bom
+ utf_detect_bom,
+ utf_without_bom,
+ utf_with_bom
};
enum utf_16_endian_type
struct utf_16_spec
{
- enum utf_16_bom_type bom;
+ enum utf_bom_type bom;
enum utf_16_endian_type endian;
int surrogate;
};
struct iso_2022_spec iso_2022;
struct ccl_spec *ccl; /* Defined in ccl.h. */
struct utf_16_spec utf_16;
- int emacs_mule_full_support;
+ enum utf_bom_type utf_8_bom;
+ struct emacs_mule_spec emacs_mule;
} spec;
int max_charset_id;
- char *safe_charsets;
+ unsigned char *safe_charsets;
/* The following two members specify how binary 8-bit code 128..255
are represented in source and destination text respectively. 1
int default_char;
- int (*detector) P_ ((struct coding_system *,
- struct coding_detection_info *));
- void (*decoder) P_ ((struct coding_system *));
- int (*encoder) P_ ((struct coding_system *));
+ int (*detector) (struct coding_system *,
+ struct coding_detection_info *);
+ void (*decoder) (struct coding_system *);
+ int (*encoder) (struct coding_system *);
};
/* Meanings of bits in the member `common_flags' of the structure
if (j1 & 1) \
{ \
s1 = (j1 <= 0x25 ? 0xF0 + (j1 - 0x21) / 2 \
- : j1 <= 0x27 ? 0xF3 + (j1 - 0x2D) / 2 \
+ : j1 <= 0x2F ? 0xF3 + (j1 - 0x2D) / 2 \
: 0xF5 + (j1 - 0x6F) / 2); \
s2 = j2 + ((j2 >= 0x60) ? 0x20 : 0x1F); \
} \
#define ENCODE_UTF_8(str) code_convert_string_norecord (str, Qutf_8, 1)
/* Extern declarations. */
-extern Lisp_Object code_conversion_save P_ ((int, int));
-extern int decoding_buffer_size P_ ((struct coding_system *, int));
-extern int encoding_buffer_size P_ ((struct coding_system *, int));
-extern void setup_coding_system P_ ((Lisp_Object, struct coding_system *));
-extern Lisp_Object coding_charset_list P_ ((struct coding_system *));
-extern void detect_coding P_ ((struct coding_system *));
-extern Lisp_Object code_convert_region P_ ((Lisp_Object, Lisp_Object,
- Lisp_Object, Lisp_Object,
- int, int));
-extern Lisp_Object code_convert_string P_ ((Lisp_Object, Lisp_Object,
- Lisp_Object, int, int, int));
-extern Lisp_Object code_convert_string_norecord P_ ((Lisp_Object, Lisp_Object,
- int));
-extern Lisp_Object raw_text_coding_system P_ ((Lisp_Object));
-extern Lisp_Object coding_inherit_eol_type P_ ((Lisp_Object, Lisp_Object));
-
-extern int decode_coding_gap P_ ((struct coding_system *,
- EMACS_INT, EMACS_INT));
-extern int encode_coding_gap P_ ((struct coding_system *,
- EMACS_INT, EMACS_INT));
-extern void decode_coding_object P_ ((struct coding_system *,
- Lisp_Object, EMACS_INT, EMACS_INT,
- EMACS_INT, EMACS_INT, Lisp_Object));
-extern void encode_coding_object P_ ((struct coding_system *,
- Lisp_Object, EMACS_INT, EMACS_INT,
- EMACS_INT, EMACS_INT, Lisp_Object));
+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 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 void detect_coding (struct coding_system *);
+extern Lisp_Object code_convert_region (Lisp_Object, Lisp_Object,
+ Lisp_Object, Lisp_Object,
+ int, int);
+extern Lisp_Object code_convert_string (Lisp_Object, Lisp_Object,
+ Lisp_Object, int, int, int);
+extern Lisp_Object code_convert_string_norecord (Lisp_Object, Lisp_Object,
+ int);
+extern Lisp_Object raw_text_coding_system (Lisp_Object);
+extern Lisp_Object coding_inherit_eol_type (Lisp_Object, Lisp_Object);
+
+extern int decode_coding_gap (struct coding_system *,
+ EMACS_INT, EMACS_INT);
+extern int encode_coding_gap (struct coding_system *,
+ EMACS_INT, EMACS_INT);
+extern void decode_coding_object (struct coding_system *,
+ Lisp_Object, EMACS_INT, EMACS_INT,
+ EMACS_INT, EMACS_INT, Lisp_Object);
+extern void encode_coding_object (struct coding_system *,
+ Lisp_Object, EMACS_INT, EMACS_INT,
+ EMACS_INT, EMACS_INT, Lisp_Object);
/* Macros for backward compatibility. */
#define decode_coding_string(coding, string, nocopy) \
- decode_coding_object (coding, string, 0, 0, XSTRING (string)->size, \
- STRING_BYTES (XSTRING (string)), Qt)
+ decode_coding_object (coding, string, 0, 0, SCHARS (string), \
+ SBYTES (string), Qt)
#define encode_coding_string(coding, string, nocopy) \
- (encode_coding_object (coding, string, 0, 0, XSTRING (string)->size, \
- STRING_BYTES (XSTRING (string)), Qt), \
- (coding)->dst_object)
+ (STRING_MULTIBYTE(string) ? \
+ (encode_coding_object (coding, string, 0, 0, SCHARS (string), \
+ SBYTES (string), Qt), \
+ (coding)->dst_object) : (string))
#define decode_coding_c_string(coding, src, bytes, dst_object) \
} while (0)
-extern Lisp_Object preferred_coding_system P_ (());
+extern Lisp_Object preferred_coding_system ();
extern Lisp_Object Qutf_8, Qutf_8_emacs;
extern Lisp_Object Qstart_process, Qopen_network_stream;
extern Lisp_Object Qwrite_region;
-extern char *emacs_strerror P_ ((int));
+extern char *emacs_strerror (int);
/* Coding-system for reading files and receiving data from process. */
extern Lisp_Object Vcoding_system_for_read;
extern Lisp_Object Qcoding_system_error;
extern char emacs_mule_bytes[256];
-extern int emacs_mule_string_char P_ ((unsigned char *));
+extern int emacs_mule_string_char (unsigned char *);
#endif /* EMACS_CODING_H */
HCoop / bpt / emacs.git / blobdiff