[PATCH] vbscript: Treat tokens after a '.' as identifier

[Jacek Caban]

Hi Brendan,


Thanks for looking at this.

On 19/12/2018 01:52, Brendan McGrath wrote:
> Currently, a vbscript using an identifier that is also a keyword fails
> with a parser error. For example:
> Set oLocator = CreateObject("Wbemscripting.SWbemLocator")
> Set oReg = oLocator.ConnectServer("", "root\default", "", "").Get("StdRegProv")
>
> results in:
> 0009:fixme:vbscript:parse_script parser failed around L"efault\", \"\", \"\").Get(\"StdRegProv\")\n"
>
>
> The 'Get' method here causes the parser error as it is also a vbscript
> keyword.
>
> This patch treats any token after a '.' as an identifier.
>
> Wine-Bug: https://bugs.winehq.org/show_bug.cgi?id=46318
> Signed-off-by: Brendan McGrath <brendan at redmandi.com>
> ---
>
> I _think_ this patch is OK - but I don't have a lot of experience with
> vbscript. There may be a scenario where a keyword can immediately follow
> a '.'.

I think the issue is more general than an identifier after '.' token. We 
already have code for similar problem with 'property' keyword (see 
Identifier rule in parser.y), we probably could extend that. Also 
jscript has a more complete solution for similar problem (see 
ReservedAsIdentifier) that you could use as an example.

Also please include some tests in the patch.

Thanks,
Jacek