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comparison src/mule-ccl.h @ 428:3ecd8885ac67 r21-2-22

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Import from CVS: tag r21-2-22
author cvs
date Mon, 13 Aug 2007 11:28:15 +0200
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427:0a0253eac470 428:3ecd8885ac67
1 /* Header for CCL (Code Conversion Language) interpreter.
2 Copyright (C) 1995,1999 Electrotechnical Laboratory, JAPAN.
3 Licensed to the Free Software Foundation.
4
5 This file is part of XEmacs.
6
7 GNU Emacs is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 2, or (at your option)
10 any later version.
11
12 GNU Emacs is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
16
17 You should have received a copy of the GNU General Public License
18 along with GNU Emacs; see the file COPYING. If not, write to
19 the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
20 Boston, MA 02111-1307, USA. */
21
22 /* Synched up with: FSF Emacs 20.3.10 */
23
24 #ifndef _CCL_H
25 #define _CCL_H
26
27 /* Macros for exit status of CCL program. */
28 #define CCL_STAT_SUCCESS 0 /* Terminated successfully. */
29 #define CCL_STAT_SUSPEND_BY_SRC 1 /* Terminated by empty input. */
30 #define CCL_STAT_SUSPEND_BY_DST 2 /* Terminated by output buffer full. */
31 #define CCL_STAT_INVALID_CMD 3 /* Terminated because of invalid
32 command. */
33 #define CCL_STAT_QUIT 4 /* Terminated because of quit. */
34
35 /* Structure to hold information about running CCL code. Read
36 comments in the file ccl.c for the detail of each field. */
37 struct ccl_program {
38 int size; /* Size of the compiled code. */
39 Lisp_Object *prog; /* Pointer into the compiled code. */
40 int ic; /* Instruction Counter (index for PROG). */
41 int eof_ic; /* Instruction Counter for end-of-file
42 processing code. */
43 int reg[8]; /* CCL registers, reg[7] is used for
44 condition flag of relational
45 operations. */
46 int private_state; /* CCL instruction may use this
47 for private use, mainly for preservation
48 internal states for suspending.
49 This variable is set to 0 when ccl is
50 set up. */
51 int last_block; /* Set to 1 while processing the last
52 block. */
53 int status; /* Exit status of the CCL program. */
54 int buf_magnification; /* Output buffer magnification. How
55 many times bigger the output buffer
56 should be than the input buffer. */
57 int stack_idx; /* How deep the call of CCL_Call is nested. */
58 };
59
60
61 #define CCL_MODE_ENCODING 0
62 #define CCL_MODE_DECODING 1
63
64 int ccl_driver (struct ccl_program *ccl, CONST unsigned char *source,
65 unsigned_char_dynarr *destination, int src_bytes,
66 int *consumed, int conversion_mode);
67 void setup_ccl_program (struct ccl_program *ccl, Lisp_Object val);
68
69 /* Alist of fontname patterns vs corresponding CCL program. */
70 extern Lisp_Object Vfont_ccl_encoder_alist;
71 extern Lisp_Object Qccl_program;
72
73 #endif /* _CCL_H */