Hi,
I encountered a problem with select() in beta-0.40.6-2009100509
(TeX Live 2009):
------------------------------------------------------------------
#! /usr/bin/env texlua
print (select (1, string.gsub ('abc', 'b', 'X')))
print (select (2, string.gsub ('abc', 'b', 'X')))
------------------------------------------------------------------
--> aXc 1
--> 1
This seems to be wrong. select (1, ....) should only return the first
argument, not both. I'm wondering why select (2, ....) works as
expected. I must admit that I couldn't find any specs for select(),
it just appears in some examples in the Lua book.
I can define select() myself, overwriting the built-in function.
Then I get the results I expect:
------------------------------------------------------------------
#! /usr/bin/env texlua
function select (n, ...)
return arg[n]
end
print (select (1, string.gsub ('abc', 'b', 'X')))
print (select (2, string.gsub ('abc', 'b', 'X')))
------------------------------------------------------------------
--> aXc
--> 1
Bug or feature?
Regards,
Reinhard
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Reinhard Kotucha Phone: +49-511-3373112
Marschnerstr. 25
D-30167 Hannover mailto:reinhard.kotucha@web.de
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