You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
57 lines
871 B
57 lines
871 B
4 months ago
|
grammar t046rewrite;
|
||
|
|
options {
|
||
|
|
language=JavaScript;
|
||
|
|
}
|
||
|
|
|
||
|
|
program
|
||
|
|
@init {
|
||
|
|
var start = this.input.LT(1);
|
||
|
|
}
|
||
|
|
: method+
|
||
|
|
{
|
||
|
|
this.input.insertBefore(start,"public class Wrapper {\n")
|
||
|
|
this.input.insertAfter($method.stop, "\n}\n")
|
||
|
|
}
|
||
|
|
;
|
||
|
|
|
||
|
|
method
|
||
|
|
: m='method' ID '(' ')' body
|
||
|
|
{this.input.replace($m, "public void");}
|
||
|
|
;
|
||
|
|
|
||
|
|
body
|
||
|
|
scope {
|
||
|
|
decls
|
||
|
|
}
|
||
|
|
@init {
|
||
|
|
$body::decls = {};
|
||
|
|
}
|
||
|
|
: lcurly='{' stat* '}'
|
||
|
|
{
|
||
|
|
var it;
|
||
|
|
for (it in $body::decls) {
|
||
|
|
this.input.insertAfter($lcurly, "\nint "+it+";")
|
||
|
|
}
|
||
|
|
}
|
||
|
|
;
|
||
|
|
|
||
|
|
stat: ID '=' expr ';' {$body::decls[$ID.text] = true;}
|
||
|
|
;
|
||
|
|
|
||
|
|
expr: mul ('+' mul)*
|
||
|
|
;
|
||
|
|
|
||
|
|
mul : atom ('*' atom)*
|
||
|
|
;
|
||
|
|
|
||
|
|
atom: ID
|
||
|
|
| INT
|
||
|
|
;
|
||
|
|
|
||
|
|
ID : ('a'..'z'|'A'..'Z')+ ;
|
||
|
|
|
||
|
|
INT : ('0'..'9')+ ;
|
||
|
|
|
||
|
|
WS : (' '|'\t'|'\n')+ {$channel=HIDDEN;}
|
||
|
|
;
|