Re: st: RE: RE: literal single quotes

[Nick Winter <nwinter@virginia.edu>]

Try

local bull = "count if " + char(96) + "temp" + char(39) + ">0"

You need to get the char() function to be evaluated, which doesn't 
happen inside the quotes.

Seems likely to me that costs of making the code more confusing might 
outweigh the benefits of clean-looking code, but to all their own, I 
suppose. :-)

Nick Winter

On 3/4/2010 12:48 PM, Feiveson, Alan H. (JSC-SK311) wrote:
> Thanks, Roger, Nick
>
> Both suggestions work, but something like
>
> . local bull =  "count if char(96)tempchar(39)>0"
> . `bull'
>
> unknown function ()
> r(133);
>
>
> does not work.
>
>
>
>
> . local lq = char(96)
>
> . local rq = char(39)
>
> . local bull =  "count if `lq'temp`rq'>0"
>
> . `bull'
>    334
>
> (works)
>
>
> . local bull   "count if  \`temp\'>0"
>
> . `bull'
>    334
>
> (works)
>
>
> Nick - I see a legitimate need for this when you have a long expression involving temporary variables or names that may make the code look ugly if written out next to some other long statement.
>
> Al
>
>
>
>
> -----Original Message-----
> From: owner-statalist@hsphsun2.harvard.edu [mailto:owner-statalist@hsphsun2.harvard.edu] On Behalf Of Nick Cox
> Sent: Thursday, March 04, 2010 11:37 AM
> To: statalist@hsphsun2.harvard.edu
> Subject: st: RE: literal single quotes
>
> This sounds like the urge for setting up a delayed evaluation, on which
> my advice is
>
> 1. Use \` to insert a literal left quote if the urge is overwhelming.
>
> 2. Better, resist the urge. Rewrite your code so that you don't need to
> do it.
>
> This came up a few months ago, but I can't find my post. Martin Weiss
> will probably remember it.
>
> Nick
> n.j.cox@durham.ac.uk
>
> Feiveson, Alan H. (JSC-SK311)
>
> Can someone please tell me how to define a local macro  that contains
> literal single quotes? For example Suppose I want to do something like
>
> local bull "count if `temp'>  0"
>
> where `temp' is to be interpreted literally, not evaluated.
>
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Nicholas Winter                                 434.924.6994 t
Assistant Professor                             434.924.3359 f
Department of Politics                  nwinter@virginia.edu e
University of Virginia          faculty.virginia.edu/nwinter w
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