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st: file wrote single opening quote


From   Ulrich Kohler <ukohler@sowi.uni-mannheim.de>
To   statalist@hsphsun2.harvard.edu
Subject   st: file wrote single opening quote
Date   Mon, 18 Nov 2002 15:43:17 +0000

Is there a way to wrote a single opening quote to a file with -file wrote-? 

In a program I have the command 

   file write texfile `"`line'"'

which wrotes the contents of the local macro `line' to the file handle 
"texfile". The command works well except for lines which contains either a 
local macro name (like `a') , or a single opening quote. In the first case 
Stata expands the local macro name to the contents of the local macro. But I 
want to have the local macro name (`a') in my file handle. In the second case 
I got an error message because Stata thinks that there should be a valid 
local macro name, which is not there.

I tried to escape each occurence of the single opening quote with the 
backslash by substituting ` with \`. But 

   local line: subinstr local line `"`"' `"\`"'

does not work for obvious reasons.  What else could be done?

uli


-- 
ukohler@sowi.uni-mannheim.de
http://www.sowi.uni-mannheim.de/lesas

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