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
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
|
/*
* OpenSCAD (www.openscad.at)
* Copyright (C) 2009 Clifford Wolf <clifford@clifford.at>
*
* This program 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 2 of the License, or
* (at your option) any later version.
*
* This program 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, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
*/
%{
#include "openscad.h"
#include <stdio.h>
extern int parserdebug;
int parserlex(void);
void yyerror(char const *s);
int lexerget_lineno(void);
int lexerlex(void);
%}
%union {
char *text;
double number;
}
%token TOK_MODULE
%token TOK_FUNCTION
%token <text> TOK_ID
%token <text> TOK_STRING
%token <number> TOK_NUMBER
%left '+' '-'
%left '*' '/' '%'
%left '.'
%debug
%%
input:
/* empty */ |
statement input ;
statement:
';' |
'{' input '}' |
node statement |
TOK_ID '=' expr ';' |
TOK_MODULE TOK_ID '(' arguments_decal ')' statement |
TOK_FUNCTION TOK_ID '(' arguments_decal ')' expr ;
node:
TOK_ID '(' arguments_call ')' |
TOK_ID ':' TOK_ID '(' arguments_call ')' ;
expr:
TOK_ID |
expr '.' TOK_ID |
TOK_STRING |
TOK_NUMBER |
TOK_NUMBER ':' TOK_NUMBER |
TOK_NUMBER ':' TOK_NUMBER ':' TOK_NUMBER |
'[' TOK_NUMBER TOK_NUMBER TOK_NUMBER ']' |
'[' expr ',' expr ',' expr ']' |
expr '*' expr |
expr '/' expr |
expr '%' expr |
expr '+' expr |
expr '-' expr |
'+' expr |
'-' expr |
'(' expr ')' |
TOK_ID '(' arguments_call ')' ;
arguments_decal:
argument_decal |
argument_decal ',' arguments_decal |
/* empty */ ;
argument_decal:
TOK_ID |
TOK_ID '=' expr ;
arguments_call:
argument_call |
argument_call ',' arguments_call |
/* empty */ ;
argument_call:
expr |
TOK_ID '=' expr ;
%%
int parserlex(void)
{
return lexerlex();
}
void yyerror (char const *s)
{
fprintf(stderr, "Parser error in line %d: %s\n", lexerget_lineno(), s);
exit(1);
}
|
