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4ed46869 | 1 | /* Header for CCL (Code Conversion Language) interpreter. |
4ed46869 | 2 | Copyright (C) 1995 Electrotechnical Laboratory, JAPAN. |
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3 | Licensed to the Free Software Foundation. |
4 | Copyright (C) 2003 | |
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5 | National Institute of Advanced Industrial Science and Technology (AIST) |
6 | Registration Number H13PRO009 | |
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8 | This file is part of GNU Emacs. |
9 | ||
10 | GNU Emacs is free software; you can redistribute it and/or modify | |
11 | it under the terms of the GNU General Public License as published by | |
12 | the Free Software Foundation; either version 2, or (at your option) | |
13 | any later version. | |
4ed46869 | 14 | |
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15 | GNU Emacs is distributed in the hope that it will be useful, |
16 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
17 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
18 | GNU General Public License for more details. | |
4ed46869 | 19 | |
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20 | You should have received a copy of the GNU General Public License |
21 | along with GNU Emacs; see the file COPYING. If not, write to | |
22 | the Free Software Foundation, Inc., 59 Temple Place - Suite 330, | |
23 | Boston, MA 02111-1307, USA. */ | |
4ed46869 | 24 | |
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25 | #ifndef EMACS_CCL_H |
26 | #define EMACS_CCL_H | |
4ed46869 | 27 | |
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28 | /* Macros for exit status of CCL program. */ |
29 | #define CCL_STAT_SUCCESS 0 /* Terminated successfully. */ | |
30 | #define CCL_STAT_SUSPEND_BY_SRC 1 /* Terminated by empty input. */ | |
31 | #define CCL_STAT_SUSPEND_BY_DST 2 /* Terminated by output buffer full. */ | |
32 | #define CCL_STAT_INVALID_CMD 3 /* Terminated because of invalid | |
33 | command. */ | |
34 | #define CCL_STAT_QUIT 4 /* Terminated because of quit. */ | |
35 | ||
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36 | /* Structure to hold information about running CCL code. Read |
37 | comments in the file ccl.c for the detail of each field. */ | |
38 | struct ccl_program { | |
39 | int size; /* Size of the compiled code. */ | |
40 | Lisp_Object *prog; /* Pointer into the compiled code. */ | |
41 | int ic; /* Instruction Counter (index for PROG). */ | |
42 | int eof_ic; /* Instruction Counter for end-of-file | |
43 | processing code. */ | |
44 | int reg[8]; /* CCL registers, reg[7] is used for | |
45 | condition flag of relational | |
46 | operations. */ | |
eacba247 | 47 | int private_state; /* CCL instruction may use this |
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48 | for private use, mainly for saving |
49 | internal states on suspending. | |
177c0ea7 | 50 | This variable is set to 0 when ccl is |
eacba247 | 51 | set up. */ |
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52 | int last_block; /* Set to 1 while processing the last |
53 | block. */ | |
54 | int status; /* Exit status of the CCL program. */ | |
55 | int buf_magnification; /* Output buffer magnification. How | |
56 | many times bigger the output buffer | |
57 | should be than the input buffer. */ | |
e05645ee | 58 | int stack_idx; /* How deep the call of CCL_Call is nested. */ |
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59 | int src_multibyte; /* 1 if the input buffer is multibyte. */ |
60 | int dst_multibyte; /* 1 if the output buffer is multibyte. */ | |
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61 | int cr_consumed; /* Flag for encoding DOS-like EOL |
62 | format when the CCL program is used | |
63 | for encoding by a coding | |
64 | system. */ | |
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65 | int consumed; |
66 | int produced; | |
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67 | int suppress_error; /* If nonzero, don't insert error |
68 | message in the output. */ | |
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69 | int eight_bit_control; /* If nonzero, ccl_driver counts all |
70 | eight-bit-control bytes written by | |
71 | CCL_WRITE_CHAR. After execution, | |
72 | if no such byte is written, set | |
73 | this value to zero. */ | |
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74 | }; |
75 | ||
76 | /* This data type is used for the spec field of the structure | |
77 | coding_system. */ | |
78 | ||
79 | struct ccl_spec { | |
d2bc5a70 | 80 | struct ccl_program ccl; |
8538ed9a | 81 | int cr_carryover; /* CR carryover flag. */ |
898f3312 | 82 | unsigned char eight_bit_carryover[MAX_MULTIBYTE_LENGTH]; |
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83 | }; |
84 | ||
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85 | #define CODING_SPEC_CCL_PROGRAM(coding) ((coding)->spec.ccl.ccl) |
86 | ||
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87 | /* Alist of fontname patterns vs corresponding CCL program. */ |
88 | extern Lisp_Object Vfont_ccl_encoder_alist; | |
89 | ||
58068210 | 90 | /* Setup fields of the structure pointed by CCL appropriately for the |
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91 | execution of ccl program CCL_PROG (symbol or vector). */ |
92 | extern int setup_ccl_program P_ ((struct ccl_program *, Lisp_Object)); | |
58068210 | 93 | |
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94 | extern void ccl_driver P_ ((struct ccl_program *, int *, int *, int, int, |
95 | Lisp_Object)); | |
58068210 | 96 | |
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97 | /* Vector of CCL program names vs corresponding program data. */ |
98 | extern Lisp_Object Vccl_program_table; | |
99 | ||
100 | /* Symbols of ccl program have this property, a value of the property | |
101 | is an index for Vccl_protram_table. */ | |
102 | extern Lisp_Object Qccl_program_idx; | |
103 | ||
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104 | extern Lisp_Object Qccl, Qcclp; |
105 | ||
106 | EXFUN (Fccl_program_p, 1); | |
107 | ||
108 | #define CHECK_CCL_PROGRAM(x) \ | |
109 | do { \ | |
110 | if (NILP (Fccl_program_p (x))) \ | |
111 | x = wrong_type_argument (Qcclp, (x)); \ | |
112 | } while (0); | |
113 | ||
265702b7 | 114 | #endif /* EMACS_CCL_H */ |