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Re: [bug-gnu-libiconv] CP 850

From: Tomas By
Subject: Re: [bug-gnu-libiconv] CP 850
Date: Sun, 02 Apr 2017 07:50:52 +0200
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Well, you could have two CP 850 options.

(I am writing code for the HP 200LX and there is no choice on that platform.)


On 2017-04-01 20:08, Bruno Haible wrote:

I'm looking at the file tests/CP850.TXT and get the impression that the
codes 0-31 are mapped to the same character in ASCII/UTF8 ?


If this is the case, then that is not correct. Except for tab, linefeed,
carriage return, those codes are graphical characters in CP 850.

Quoting Wikipedia [1]:
"code points 1–31 and 127 (01–1Fhex and 7Fhex) may be either ASCII control
   characters or code page 437 graphics, depending on context."

See also [2].

In software that accesses fonts, it may be preferable to consider these
code points as graphic characters.

In software that converts text files, it is preferable to assume ASCII

GNU libiconv is in the latter camp.


[1] https://en.wikipedia.org/wiki/Code_page_850
[2] https://en.wikipedia.org/wiki/Code_page_437#Characters

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