On Thu, 21 Jun 2007, Peter Dalgaard wrote:
[EMAIL PROTECTED] wrote:I'm sorry to bother this list with such trivial questions, but I'm trying to take Prof. Ripley's advice in porting some Lapack wrappers into my own code, because they are not public. I'm specifically choosing programs from R-2.5.0/src/modules/lapack/Lapack.c.I can't seem to understand the context in functions such as: <snip> error(_("the leading minor of order %d is not positive definite"), i); </snip> in functions such as modLa_chol. Is there some place I can look to understand the usage of the underscore '_', or could someone explain this to me?This has to do with internationalization. It signifies that translations are available for the error message, e.g. the file "de.po" in the R sources has #: src/modules/lapack/Lapack.c:629 #, c-format msgid "the leading minor of order %d is not positive definite" msgstr "der führende Minor der Ordnung %d ist nicht positiv definit"
The answer to 'where' is section 1.9 Localization in 'Writing R Extensions' or section 3.1 of 'R Internals'.
-- Brian D. Ripley, [EMAIL PROTECTED] Professor of Applied Statistics, http://www.stats.ox.ac.uk/~ripley/ University of Oxford, Tel: +44 1865 272861 (self) 1 South Parks Road, +44 1865 272866 (PA) Oxford OX1 3TG, UK Fax: +44 1865 272595
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