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
|
%{
#include "LuaSL_LSL_tree.h"
//extern char *yytext;
//#define YYDEBUG_LEXER_TEXT yytext
%}
%define api.pure
%token <value.spaceValue> LSL_SPACE /* Never actually emitted, but we need it in the token table. */
%token <value.commentValue> LSL_COMMENT /* Never actually emitted, but we need it in the token table. */
%token <value.commentValue> LSL_COMMENT_LINE /* Never actually emitted, but we need it in the token table. */
%token <value.unknownValue> LSL_UNKNOWN /* Never actually emitted, but we need it in the token table. */
%token <value.variableValue> LSL_IDENTIFIER
%type <value.expressionValue> expr
%left LSL_BOOL_AND
%left LSL_BOOL_OR
%left LSL_BIT_AND LSL_BIT_XOR LSL_BIT_OR
%left LSL_EQUAL LSL_NOT_EQUAL
%left LSL_LESS_THAN LSL_GREATER_THAN LSL_LESS_EQUAL LSL_GREATER_EQUAL
%left LSL_LEFT_SHIFT LSL_RIGHT_SHIFT
%left LSL_SUBTRACT LSL_ADD
%left LSL_DIVIDE LSL_MODULO LSL_MULTIPLY
%right LSL_BIT_NOT LSL_BOOL_NOT LSL_NEGATION
%left LSL_ANGLE_OPEN LSL_ANGLE_CLOSE
%token LSL_BRACKET_OPEN LSL_BRACKET_CLOSE
%token LSL_PARENTHESIS_OPEN LSL_PARENTHESIS_CLOSE LSL_EXPRESSION
%right LSL_ASSIGNMENT_ADD LSL_ASSIGNMENT_SUBTRACT LSL_ASSIGNMENT_MULTIPLY LSL_ASSIGNMENT_MODULO LSL_ASSIGNMENT_DIVIDE LSL_ASSIGNMENT_PLAIN
%right LSL_DOT
%right LSL_DECREMENT_PRE LSL_INCREMENT_PRE
%token LSL_COMMA
%token <value.floatValue> LSL_FLOAT
%token <value.integerValue> LSL_INTEGER
%nonassoc LSL_TYPE_FLOAT LSL_TYPE_INTEGER LSL_TYPE_KEY LSL_TYPE_LIST LSL_TYPE_ROTATION LSL_TYPE_STRING LSL_TYPE_VECTOR
%nonassoc LSL_DO LSL_FOR LSL_ELSE LSL_IF LSL_JUMP LSL_RETURN LSL_STATE_CHANGE LSL_WHILE
%nonassoc LSL_LABEL
%nonassoc LSL_BLOCK_OPEN LSL_BLOCK_CLOSE
%type <value.statementValue> statement
%nonassoc LSL_STATEMENT
%type <value.scriptValue> script
%%
input :
expr { ((LuaSL_yyparseParam*)data)->ast = addOperation(&yylval, LSL_EXPRESSION, $1, $1); }
| statement { ((LuaSL_yyparseParam*)data)->ast = addStatement($1, ((LuaSL_yyparseParam*)data)->ast); }
| script
;
expr :
expr LSL_BOOL_AND expr { $$ = addOperation(&yylval, LSL_BOOL_AND, $1, $3); }
| expr LSL_BOOL_OR expr { $$ = addOperation(&yylval, LSL_BOOL_OR, $1, $3); }
| expr LSL_BIT_OR expr { $$ = addOperation(&yylval, LSL_BIT_OR, $1, $3); }
| expr LSL_BIT_XOR expr { $$ = addOperation(&yylval, LSL_BIT_XOR, $1, $3); }
| expr LSL_BIT_AND expr { $$ = addOperation(&yylval, LSL_BIT_AND, $1, $3); }
| expr LSL_NOT_EQUAL expr { $$ = addOperation(&yylval, LSL_NOT_EQUAL, $1, $3); }
| expr LSL_EQUAL expr { $$ = addOperation(&yylval, LSL_EQUAL, $1, $3); }
| expr LSL_GREATER_EQUAL expr { $$ = addOperation(&yylval, LSL_GREATER_EQUAL, $1, $3); }
| expr LSL_LESS_EQUAL expr { $$ = addOperation(&yylval, LSL_LESS_EQUAL, $1, $3); }
| expr LSL_GREATER_THAN expr { $$ = addOperation(&yylval, LSL_GREATER_THAN, $1, $3); }
| expr LSL_LESS_THAN expr { $$ = addOperation(&yylval, LSL_LESS_THAN, $1, $3); }
| expr LSL_RIGHT_SHIFT expr { $$ = addOperation(&yylval, LSL_RIGHT_SHIFT, $1, $3); }
| expr LSL_LEFT_SHIFT expr { $$ = addOperation(&yylval, LSL_LEFT_SHIFT, $1, $3); }
| expr LSL_ADD expr { $$ = addOperation(&yylval, LSL_ADD, $1, $3); }
| expr LSL_SUBTRACT expr { $$ = addOperation(&yylval, LSL_SUBTRACT, $1, $3); }
| expr LSL_MULTIPLY expr { $$ = addOperation(&yylval, LSL_MULTIPLY, $1, $3); }
| expr LSL_MODULO expr { $$ = addOperation(&yylval, LSL_MODULO, $1, $3); }
| expr LSL_DIVIDE expr { $$ = addOperation(&yylval, LSL_DIVIDE, $1, $3); }
| LSL_BIT_NOT expr { $$ = addOperation(&yylval, LSL_BIT_NOT, NULL, $2); }
| LSL_BOOL_NOT expr { $$ = addOperation(&yylval, LSL_BOOL_NOT, NULL, $2); }
| LSL_SUBTRACT expr { $$ = addOperation(&yylval, LSL_NEGATION, NULL, $2); } %prec LSL_NEGATION
| LSL_PARENTHESIS_OPEN expr LSL_PARENTHESIS_CLOSE { $$ = addParenthesis(&yylval, $2); }
| LSL_INTEGER { $$ = addInteger(&yylval, $1); }
;
statement : expr LSL_STATEMENT { $$ = createStatement(LSL_EXPRESSION, $1); YYVALID; }
;
script : script LSL_STATEMENT statement
%%
|
