I am still fairly new to antlr and when looking at the 1.6 Java grammar I
noticed the following statement rule:
statement
: block
| ('assert'
)
expression (':' expression)? ';'
| 'assert' expression (':' expression)? ';'
| 'if' parExpression statement ('else' statement)?
| forstatement
| 'while' parExpression statement
| 'do' statement 'while' parExpression ';'
| trystatement
| 'switch' parExpression '{' switchBlockStatementGroups '}'
| 'synchronized' parExpression block
| 'return' (expression )? ';'
| 'throw' expression ';'
| 'break'
(IDENTIFIER
)? ';'
| 'continue'
(IDENTIFIER
)? ';'
| expression ';'
| IDENTIFIER ':' statement
| ';'
;
My question is about the two lines for assert:
| ('assert'
)
expression (':' expression)? ';'
| 'assert' expression (':' expression)? ';'
To me those look identicle - am I missing something? Is there some nuance
to the parens that I don't understand?
Thanks,
jeremy
List: http://www.antlr.org/mailman/listinfo/antlr-interest
Unsubscribe:
http://www.antlr.org/mailman/options/antlr-interest/your-email-address
--
You received this message because you are subscribed to the Google Groups
"il-antlr-interest" group.
To post to this group, send email to il-antlr-inter...@googlegroups.com.
To unsubscribe from this group, send email to
il-antlr-interest+unsubscr...@googlegroups.com.
For more options, visit this group at
http://groups.google.com/group/il-antlr-interest?hl=en.
