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st: RE: RE: RE: RE: concatenating macros

From   "Wallace, John" <>
To   <>
Subject   st: RE: RE: RE: RE: concatenating macros
Date   Wed, 10 Nov 2004 14:20:41 -0800

Thanks Dan and Nick.  With Dan's suggestion the code runs perfectly.
Perhaps it's a V7 vs V8 difference, but the documentation is at [U]
21.3.9 in my books.  I should probably invest in a new set anyway.


-----Original Message-----
[] On Behalf Of Nick Cox
Sent: Wednesday, November 10, 2004 1:04 PM
Subject: st: RE: RE: RE: concatenating macros

The issue is documented at [U] 21.3.10. 


Dan Menes
> I find backslashes in path names cause no end of trouble in 
> Stata.  Whenever dealing with filenames, my first action is always
> local pathvar: subinstr local pathvar "\\" "/", all
> The problem is backslashes can have special meanings when 
> Stata tries to parse the line--they don't always get read as 
> literal backslashes.  In particular, I suspect in your 
> example the backslash is getting read as a modifier on the 
> quotation mark.
Wallace, John
> Sorry, the change in macro longname construction should have read:
> .local longname "`pathvar'`filename'"
> Note the quotes around the concatenation.

> The problem is that the final \ gets dropped from the path.
> .di "`pathvar'"
> F:\CELS\
> Oddly, the initial macro seems to store this correctly
> Changing the longname macro construction to...
> .local longname `pathvar'`filename'
> .di "`longname'"
> F:\CELS35051403

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