Hi all,
Help me to look at what is wrong with my if rule:
ifStatement
: IF parExpression stmt=statement (ELSE thenstmt=statement)?
;
statement returns [String out]
: (blockStatement ->^(STATEMENT blockStatement)
| useNamespaceStatement ->^(STATEMENT
useNamespaceStatement)
| namespaceStatement ->^(STATEMENT
namespaceStatement)
| constantVarStatement ->^(STATEMENT
constantVarStatement)
| tryStatement ->^(STATEMENT tryStatement)
| labelledStatement ->^(STATEMENT
labelledStatement )
| switchStatement ->^(STATEMENT switchStatement)
| withStatement ->^(STATEMENT withStatement )
| returnStatement ->^(STATEMENT returnStatement
)
| breakStatement ->^(STATEMENT breakStatement )
| continueStatement ->^(STATEMENT
continueStatement )
| forStatement ->^(STATEMENT forStatement )
| forInStatement ->^(STATEMENT forInStatement)
| doWhileStatement ->^(STATEMENT doWhileStatement
)
| whileStatement ->^(STATEMENT whileStatement)
| ifStatement ->^(STATEMENT ifStatement)
| emptyStatement ->^(STATEMENT emptyStatement )
| variableStatement ->^(STATEMENT
variableStatement )
| functionDeclaration ->^(STATEMENT
functionDeclaration )
| expression semic ->^(STATEMENT expression semic
)
| expressionNoIn semic ->^(STATEMENT expressionNoIn
semic )
;
Question1 :
When I use:
if ( a==2) {
b=1;
}
else {b=2;
}
I got line 9:39 mismatched character '{' expecting 'i' .
The reason for the that is the space between else and the {, if I delete the
space ,the error would not show.But I dont know how to fix it.
Question 2:
And the other problem is "else if" can not pass, if I use
if ( a==2) {
b=1;
}
else if( a== 3) {
b=2;
}
I got line 10:32 mismatched input 'else if' expecting RCURLY
line 10:48 no viable alternative at input '{'
I am lost here!
Thanks in advance.
Annie
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