Re: name:variable

On Nov 27, 2007, at 10:09 PM, Sovande Ulv wrote:

> I understand that '-' and '+' may be tricky in variable names, but
> this could easily be handled by using the parse->hdf tree as a symbol
> table and look up a variable there first.
>
Enclosed a patch which allows for using variable names with operator  
tokens such as [?<>=!#-+|&]. The patch use parse->hdf as a symbol  
table and first try to lookup a variable before parse, in  
csparse.c:var_parse().

If one have a hdf tree such as this

> Request.Header.Host = localhost:8080
> Request.Header.Connection = keep-alive
> Request.Header.Accept-Encoding = gzip, deflate
> Request.Header.Accept-Language = en-us
> Request.Header.Accept = text/xml,application/xml,application/xhtml  
> +xml,text/html;q=0.9,text/plain;q=0.8,image/png,*/*;q=0.5
> Request.Header.Cache-Control = max-age=0

The patch will make statements such as <?cs var:Request.Header.Accept- 
Encoding ?> work as expected and print "gzip, deflate" instead of 0.  
There are no other expression side effects. The extra statement to  
lookup a variable in var_parse() may even speed up things in those  
cases where the var: statement is used with a var:variable which  
probably are most cases.  Hope you will accept this patch Brandon.

Best regards