forked from jasder/antlr
27 lines
519 B
Plaintext
27 lines
519 B
Plaintext
|
grammar AA;
|
||
|
|
|
||
|
|
prog: classDef+ ;
|
||
|
|
|
||
|
|
classDef
|
||
|
|
: 'class' ID '{' member+ '}'
|
||
|
|
;
|
||
|
|
|
||
|
|
member
|
||
|
|
: 'int' ID ';' {System.out.println("var "+$ID.text);}
|
||
|
|
| 'int' ID '(' ')' '{' stat '}' {System.out.println("func "+$ID.text);}
|
||
|
|
;
|
||
|
|
|
||
|
|
stat: expr ';'
|
||
|
|
{System.out.println("found expr: "+$stat.text);}
|
||
|
|
| ID '=' expr ';'
|
||
|
|
{System.out.println("found assign: "+$stat.text);}
|
||
|
|
;
|
||
|
|
|
||
|
|
expr: INT
|
||
|
|
| ID '(' ')'
|
||
|
|
;
|
||
|
|
|
||
|
|
ID : ('a'..'z'|'A'..'Z')+ ;
|
||
|
|
INT : '0'..'9'+ ;
|
||
|
|
WS : (' '|'\t'|'\n'|'\r')+ {$channel=HIDDEN;} ;
|