[Bug 53873] New: vbscript fails to compile Else If when If is on same line

[WineHQ Bugzilla]

https://bugs.winehq.org/show_bug.cgi?id=53873

            Bug ID: 53873
           Summary: vbscript fails to compile Else If when If is on same
                    line
           Product: Wine
           Version: 7.20
          Hardware: x86-64
                OS: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: vbscript
          Assignee: wine-bugs(a)winehq.org
          Reporter: jsm174(a)gmail.com
      Distribution: ---

We've found some scripts where If statements are placed on the same line as an
Else.

The following works in real vbscript, but fails in wine vbscript:

Dim vrOption
vrOption = 3

If vrOption = 1 Then
   Wscript.Echo "vroption is 1"
ElseIf vrOption = 2 Then
   Wscript.Echo "vroption is 2"
Else If vrOption = 3 Then 
        Wscript.Echo "vroption is 3"
        End If
End If


As a workaround we've added an additional entry to tELSE, which seems to work:

Else_opt
    : /* empty */                           { $$ = NULL; }
    | tELSE tNL StatementsNl_opt            { $$ = $3; }
    | tELSE StatementsNl_opt                { $$ = $2; }

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