[Python-bugs-list] [ python-Bugs-593581 ] u'%c' % large value: broken result

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Bugs item #593581, was opened at 2002-08-11 04:35
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Category: Unicode
Group: Python 2.2
Status: Closed
Resolution: Fixed
Priority: 5
Submitted By: Guido van Rossum (gvanrossum)
Assigned to: M.-A. Lemburg (lemburg)
Summary: u'%c' % large value: broken result

Initial Comment:
The unicode implementation of '%c' % x does no range
checking on x, and out-of-range values can cause weird
effects. You might want to implement the same range
checking as 8-bit strings use, restricting x to values
in range(256). Or you might want to implement
unichr(x), restricting x to values in range(0xffff).
But right now it's a mess:

>>> u'%c' % 100
u'd'
>>> u'%c' % 300
u','
>>> u'%c' % 900
u'\uff84'
>>> u'%c' % -900
u'|'
>>> 


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>Comment By: M.-A. Lemburg (lemburg)
Date: 2002-10-07 11:44

Message:
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I agree: this is a 2.2.2 candidate.

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Comment By: Michael Hudson (mwh)
Date: 2002-10-07 11:20

Message:
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Maybe this is a dead horse already...

2.2.2 candidate?

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Comment By: M.-A. Lemburg (lemburg)
Date: 2002-08-11 12:23

Message:
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Fix checked in. u"%c" will now apply the same checks as
unichr().

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