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318
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1
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357
|
2 %tokens ':' ';' '(' ')' ',' string id number '%%' '%terminal' header
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318
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3
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4 %%
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5
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322
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6 burgdef: header '%%' directives '%%' rules { self.system.header_lines = $1.val };
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319
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7
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8 directives:
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9 | directives directive;
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318
|
10
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319
|
11 directive: termdef;
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12
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13 termdef: '%terminal' termids;
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14
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15 termids:
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16 | termids termid;
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318
|
17
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319
|
18 termid: id { self.system.add_terminal($1.val) };
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19
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20 rules:
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21 | rules rule;
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22
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357
|
23 rule: id ':' tree cost string { self.system.add_rule($1.val, $3, $4, None, $5.val) };
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24 rule: id ':' tree cost string string { self.system.add_rule($1.val, $3, $4, $5.val, $6.val) };
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318
|
25
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319
|
26 cost: number { return $1.val };
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|
318
|
27
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|
319
|
28 tree: id { return self.system.tree($1.val) }
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29 | id '(' tree ')' { return self.system.tree($1.val, $3) }
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30 | id '(' tree ',' tree ')' { return self.system.tree($1.val, $3, $5) };
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31
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