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
|
/*************************************************************************
* Copyright (C) 2009 Tavian Barnes <tavianator@gmail.com> *
* *
* This file is part of Dimension. *
* *
* Dimension 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 of the License, or (at *
* your option) any later version. *
* *
* Dimension is distributed in the hope that it will be useful, but *
* WITHOUT ANY WARRANTY; without even the implied warranty of *
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU *
* General Public License for more details. *
* *
* You should have received a copy of the GNU General Public License *
* along with this program. If not, see <http://www.gnu.org/licenses/>. *
*************************************************************************/
#ifndef PARSE_H
#define PARSE_H
#include "../libdimension/dimension.h"
typedef enum {
DMNSN_AST_FLOAT,
DMNSN_AST_INTEGER,
DMNSN_AST_NEGATE,
DMNSN_AST_ADD,
DMNSN_AST_SUB,
DMNSN_AST_MUL,
DMNSN_AST_DIV,
DMNSN_AST_VECTOR,
DMNSN_AST_BOX,
DMNSN_AST_SPHERE,
DMNSN_AST_ROTATION,
DMNSN_AST_OBJECT_MODIFIERS,
} dmnsn_astnode_type;
typedef struct dmnsn_astnode dmnsn_astnode;
struct dmnsn_astnode {
dmnsn_astnode_type type;
/* Child nodes */
dmnsn_array *children;
/* Generic data pointer */
void *ptr;
/* File name, and line and column numbers from source code */
const char *filename;
unsigned int line, col;
};
/* The workhorse */
dmnsn_array *dmnsn_parse(const dmnsn_array *tokens);
/* Free an abstract syntax tree */
void dmnsn_delete_astree(dmnsn_array *astree);
/* Evaluate an arithmetic expression */
dmnsn_astnode dmnsn_eval_scalar(dmnsn_astnode astnode);
dmnsn_astnode dmnsn_eval_vector(dmnsn_astnode astnode);
/* Print an S-expression of the abstract syntax tree to `file' */
void dmnsn_print_astree_sexpr(FILE *file, const dmnsn_array *astree);
/* Returns a readable name for a token type (ex. DMNSN_T_FLOAT -> float) */
const char *dmnsn_astnode_string(dmnsn_astnode_type astnode_type);
#endif /* PARSE_H */
|
