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38.13 Locales

setlocale category [locale] Scheme Procedure
scm_setlocale (category, locale) C Function
If locale is omitted, return the current value of the specified locale category as a system-dependent string. category should be specified using the values LC_COLLATE, LC_ALL etc.

Otherwise the specified locale category is set to the string locale and the new value is returned as a system-dependent string. If locale is an empty string, the locale will be set using environment variables.