I am new, and faced with converting utf-8 to extended ascii (in one of three flavors: windows-ascii (cp 1252), Latin-1(8859-1), and/or OEM/DOS (cp 437). I found this after much searching: 
s/([\xC2\xC3])([\x80-\xBF])/chr(ord($1)<<6&0xC0|ord($2)&0x3F)/eg;

[download]
which seems to convert utf-8 to *something* (probably windows-ansi)

Could someone help me understand the expression? The search part I can pretty much get, but the replace has me alittle puzzled. Specifically

Thanks.

In reply to regex for utf-8 by jjohhn

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