1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
|
/* converter.c
*
* $Id: converter.c 93 2003-09-04 15:30:04Z sam $
*
* Copyright 1990, 1991, 1992, 1993, 1994, 1995, Oliver Laumann, Berlin
* Copyright 2002, 2003 Sam Hocevar <sam@zoy.org>, Paris
*
* This software was derived from Elk 1.2, which was Copyright 1987, 1988,
* 1989, Nixdorf Computer AG and TELES GmbH, Berlin (Elk 1.2 has been written
* by Oliver Laumann for TELES Telematic Services, Berlin, in a joint project
* between TELES and Nixdorf Microprocessor Engineering, Berlin).
*
* Oliver Laumann, TELES GmbH, Nixdorf Computer AG and Sam Hocevar, as co-
* owners or individual owners of copyright in this software, grant to any
* person or company a worldwide, royalty free, license to
*
* i) copy this software,
* ii) prepare derivative works based on this software,
* iii) distribute copies of this software or derivative works,
* iv) perform this software, or
* v) display this software,
*
* provided that this notice is not removed and that neither Oliver Laumann
* nor Teles nor Nixdorf are deemed to have made any representations as to
* the suitability of this software for any purpose nor are held responsible
* for any defects of this software.
*
* THERE IS ABSOLUTELY NO WARRANTY FOR THIS SOFTWARE.
*/
#include "xt.h"
#define MAX_CONVERTER 512
typedef struct {
char *name;
int scheme_to_c;
PFX2S to_scheme;
PFS2X to_c;
} CONVERTER;
static CONVERTER ctab[MAX_CONVERTER], *clast = ctab;
void Define_Converter_To_Scheme (char *name, PFX2S c) {
Set_Error_Tag ("c->scheme");
if (clast == ctab+MAX_CONVERTER)
Primitive_Error ("too many converters");
clast->name = name;
clast->scheme_to_c = 0;
clast->to_scheme = c;
clast++;
}
void Define_Converter_To_C (char *name, PFS2X c) {
Set_Error_Tag ("scheme->c");
if (clast == ctab+MAX_CONVERTER)
Primitive_Error ("too many converters");
clast->name = name;
clast->scheme_to_c = 1;
clast->to_c = c;
clast++;
}
PFX2S Find_Converter_To_Scheme (char *name) {
register CONVERTER *p;
for (p = ctab; p < clast; p++)
if (!p->scheme_to_c && streq (p->name, name))
return p->to_scheme;
return 0;
}
PFS2X Find_Converter_To_C (char *name) {
register CONVERTER *p;
for (p = ctab; p < clast; p++)
if (p->scheme_to_c && streq (p->name, name))
return p->to_c;
return 0;
}
|
