forked from mnbtkd/MameScheme
-
Notifications
You must be signed in to change notification settings - Fork 0
/
symbol.c
99 lines (87 loc) · 2.89 KB
/
symbol.c
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
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
/*--------------------------------------------------------------------
symbol.c - MameScheme ( Scheme Interpreter based on R5RS )
--------------------------------------------------------------------*/
/*
* Copyright (c) 2007-2011 mnbtkd
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of authors nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include "mame.h"
#include "st.h"
static int last_id=0;
static st_table* sym_table=0;
static st_table* rev_table=0;
#define NEW_ID() (((last_id++)<<2) + T_SYMBOL);
static unsigned long ids[1024*16];
static int size=0;
void ensure_init_symtable(void)
{
if ( ! sym_table ) {
sym_table = st_init_strtable();
}
if ( ! rev_table ) {
rev_table = st_init_numtable();
}
}
void sch_sym_insert( char* str, SchObj id )
{
char* name = SCH_MALLOC(1024);
strncpy(name,str,1023);
st_insert(sym_table,name,id);
st_insert(rev_table,id,name);
}
SchObj sch_intern( char* str )
{
SchObj id;
if ( ! st_lookup(sym_table, str, &id) ) {
id = NEW_ID();
sch_sym_insert(str, id);
ids[size++] = id ;
}
return id;
}
char* sch_id2name( SchObj id )
{
char* ret;
if ( ! st_lookup(rev_table, id, &ret ) ) {
ret="";
}
return ret;
}
char* symsd(void)
{
int i;
char* name;
char* buf = SCH_MALLOC(1024);
char tmp[256];
tmp[0]='\0';
buf[0] = '\n';
for ( i=0 ; i<size ; ++i ) {
name = sch_id2name(ids[i]);
sprintf(tmp,"[%#010lx](%s)\n",ids[i],name);
strcat(buf,tmp);
}
return buf;
}