Re: Letter-case conversions in network protocols

[Lars Ingebrigtsen]

Eli Zaretskii <eliz@gnu.org> writes:

> As result of calling that, downcasing 'I' no longer produces 'i', and
> code which attempts to match keywords including 'i' case-insensitively
> fails.

(For those who wondered what the concrete problem we had was, it was
basically

(with-temp-buffer
  (let ((case-fold-search t))
    (insert "DIRECT\n")
    (goto-char (point-min))
    (looking-at "direct")))

If you start Emacs with

  LANG=tr_TR src/emacs

this will return nil, while in most (all?) other locales it will return
t, and this made HTTP proxying fail completely if started in that locale.)

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