1 %token "function" "as" "end";
2 %token "integer" "string" "bool" "pointer";
3 %token "if" "then" "else";
4 %token "do" "while";
5 %token "for" "to" "step" "next";
6 %token "switch" "case" "default";
7 %token "call" "return";
8 %token "dll" "com" "name" "lib" "class" "alias";
9 %token "true" "false";
10 %token ";" "," "+" "-" "*" "/" "=" "[" "]" ":";
11 %token ">" "<" ">=" "<=" "==";
12 %token "not" "and" "or";
13
14 %start program;
15
16 var_type -> "integer"
17 | "string"
18 | "bool"
19 | "pointer"
20 ;
21
22 value_type -> array
23 | "{String}"
24 | "{Symbol}"
25 | "{digit}"
26 | "true"
27 | "false"
28 | function_closure
29 ;
30
31 array -> "{Symbol}" "[" value_list "]"
32 ;
33
34 paramter_list -> paramter_list "," function_closure
35 | paramter_list "," var_type value_type
36 | function_closure
37 | var_type value_type
38 ;
39
40 value_list -> value_list "," exp
41 | exp
42 ;
43
44 program -> item_list
45 ;
46
47 item_list -> item_list item
48 | item
49 ;
50
51 item -> function_desc
52 | define_desc
53 | array_desc
54 ;
55
56 stmt_list -> stmt_list stmt
57 | stmt
58 ;
59
60 stmt -> define_desc
61 | array_desc
62 | if_desc
63 | do_desc
64 | while_desc
65 | for_desc
66 | assign_desc
67 | call_desc
68 | switch_desc
69 | return_desc
70 | dll_desc
71 | com_desc
72 | ";"
73 ;
74
75 function_desc -> "function" "{Symbol}" "{LQ}" "{RQ}" "as" var_type stmt_list "end" "function"
76 | "function" "{Symbol}" "{LQ}" "{RQ}" stmt_list "end" "function"
77 | "function" "{Symbol}" "{LQ}" "{RQ}" "as" var_type "end" "function"
78 | "function" "{Symbol}" "{LQ}" "{RQ}" "end" "function"
79 | "function" "{Symbol}" "{LQ}" paramter_list "{RQ}" "as" var_type stmt_list "end" "function"
80 | "function" "{Symbol}" "{LQ}" paramter_list "{RQ}" stmt_list "end" "function"
81 | "function" "{Symbol}" "{LQ}" paramter_list "{RQ}" "as" var_type "end" "function"
82 | "function" "{Symbol}" "{LQ}" paramter_list "{RQ}" "end" "function"
83 ;
84
85 function_closure -> "function" "{LQ}" "{RQ}" "as" var_type stmt_list "end" "function"
86 | "function" "{LQ}" "{RQ}" stmt_list "end" "function"
87 | "function" "{LQ}" "{RQ}" "as" var_type "end" "function"
88 | "function" "{LQ}" "{RQ}" "end" "function"
89 | "function" "{LQ}" paramter_list "{RQ}" "as" var_type stmt_list "end" "function"
90 | "function" "{LQ}" paramter_list "{RQ}" stmt_list "end" "function"
91 | "function" "{LQ}" paramter_list "{RQ}" "as" var_type "end" "function"
92 | "function" "{LQ}" paramter_list "{RQ}" "end" "function"
93 ;
94
95 define_desc -> define_desc "," "{Symbol}" "[" value_list "]"
96 | define_desc "," "{Symbol}" "[" "]"
97 | define_desc "," "{Symbol}" "=" value_type
98 | define_desc "," "{Symbol}"
99 | var_type "{Symbol}" "=" value_type
100 | var_type "{Symbol}"
101 ;
102
103 array_desc -> array_desc "," "{Symbol}" "[" value_list "]"
104 | array_desc "," "{Symbol}" "[" "]"
105 | array_desc "," "{Symbol}" "=" value_type
106 | array_desc "," "{Symbol}"
107 | var_type "{Symbol}" "[" value_list "]"
108 | var_type "{Symbol}" "[" "]"
109 ;
110
111 if_desc -> "if" exp "then" "else" "end" "if"
112 | "if" exp "then" "else" stmt_list "end" "if"
113 | "if" exp "then" stmt_list "else" "end" "if"
114 | "if" exp "then" stmt_list "else" stmt_list "end" "if"
115 | "if" exp "then" "end" "if"
116 | "if" exp "then" stmt_list "end" "if"
117 ;
118
119 do_desc -> "do" stmt_list "while" exp
120 | "do" "while" exp
121 ;
122
123 while_desc -> "while" exp "do" stmt_list "end" "while"
124 | "while" exp "do" "end" "while"
125 ;
126
127 for_desc -> "for" "{Symbol}" "=" exp "to" exp "do" stmt_list "next"
128 | "for" "{Symbol}" "=" exp "to" exp "do" "next"
129 | "for" "{Symbol}" "=" exp "to" exp "step" exp "do" stmt_list "next"
130 | "for" "{Symbol}" "=" exp "to" exp "step" exp "do" "next"
131 ;
132
133 assign_desc -> array "=" exp
134 | "{Symbol}" "=" exp
135 ;
136
137 call_desc -> "{Symbol}" "{LQ}" "{RQ}"
138 | "{Symbol}" "{LQ}" value_list "{RQ}"
139 | "call" "{Symbol}" "{LQ}" "{RQ}"
140 | "call" "{Symbol}" "{LQ}" value_list "{RQ}"
141 ;
142
143 switch_desc -> "switch" exp "do" case_list "end" "switch"
144 | "switch" exp "do" "end" "switch"
145 ;
146
147 case_list -> case_list "case" exp ":"
148 | case_list "default" ":"
149 | "case" exp ":"
150 | "default" ":"
151 ;
152
153 return_desc -> "return" function_closure
154 | "return" exp
155 | "return"
156 ;
157
158 dll_desc -> "dll" "lib" "{Symbol}" "function" "{Symbol}" "{LQ}" "{RQ}"
159 | "dll" "lib" "{Symbol}" "function" "{Symbol}" "alias" "{Symbol}" "{LQ}" "{RQ}"
160 | "dll" "lib" "{Symbol}" "function" "{Symbol}" "{LQ}" paramter_list "{RQ}"
161 | "dll" "lib" "{Symbol}" "function" "{Symbol}" "alias" "{Symbol}" "{LQ}" paramter_list "{RQ}"
162 ;
163
164 com_desc -> "com" "lib" "{Symbol}" "class" "{Symbol}" "function" "{Symbol}" "{LQ}" "{RQ}"
165 | "com" "lib" "{Symbol}" "class" "{Symbol}" "function" "{Symbol}" "alias" "{Symbol}" "{LQ}" "{RQ}"
166 | "com" "lib" "{Symbol}" "class" "{Symbol}" "function" "{Symbol}" "{LQ}" paramter_list "{RQ}"
167 | "com" "lib" "{Symbol}" "class" "{Symbol}" "function" "{Symbol}" "alias" "{Symbol}" "{LQ}" paramter_list "{RQ}"
168 ;
169
170 exp -> exp ">" exp1
171 | exp "<" exp1
172 | exp ">=" exp1
173 | exp "<=" exp1
174 | exp "==" exp1
175 | exp "and" exp1
176 | exp "or" exp1
177 | "not" exp1
178 | exp1
179 ;
180
181 exp1 -> exp1 "+" exp2
182 | exp1 "-" exp2
183 | exp2
184 ;
185
186 exp2 -> exp2 "*" exp3
187 | exp2 "/" exp3
188 | exp3
189 ;
190
191 exp3 -> "{LQ}" exp "{RQ}"
192 | value_type
193 ;
尚未包含實(shí)數(shù)部分
posted on 2010-09-17 22:04
lwch 閱讀(1093)
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