bash and the current locale implementation

Thomas Wolff
Thu Oct 1 15:12:00 GMT 2009

>   setenv (locale_var);
>   if (locale_var == "LANG" || "LC_ALL")
>     setlocale (LC_ALL, "");
>   else if (locale_var == "LC_CTYPE")
>     setlocale (LC_CTYPE, "");
Irrespective of the discussion whether or when some such invocations 
should be applied,
I am a little bit confused about this code itself.
Does it suggest that LANG would take precedence over LC_CTYPE? That 
would be wrong.
The precedence of variables to be used to determine a locale category's 
value is as follows:
1. LC_ALL if it is defined and not empty (overriding everything)
2. specific LC_ variable (LC_CTYPE in the case of checking the encoding) 
if defined and not empty
3. LANG as a last resort if both of the above are undefined or empty

Or, putting it in bash syntax:

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