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Re: Perl oddities

by bart (Canon)
on Mar 01, 2005 at 22:40 UTC ( #435642=note: print w/replies, xml ) Need Help??

in reply to Perl oddities

First of all, I'd like open and opendir to have returned an open handle, or undef on failure, instead of changing a passed argument on the side. But Joost already mentioned that.

And second, I find it not just odd but also extremely annoying how the -X operators ignore parens as a hint for parsing precedence. Take this example:

print -M($0) + 1;
This yields:
Argument "" isn't numeric in addition (+) at line 2.
Use of uninitialized value in print at line 2.

Perl treats this the same as

print -M ($0 + 1);

Not exactly what I had in mind. You have to wrap the parens around both operator and argument, to make it behave like I want. Just like Applescript.

print +(-M $0)+1;

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[LanX]: (not a high priority bug because I can use some HTML entities in the second string)
[Corion]: base64 is padded to a multiple of 4 chars (or something)
[LanX]: misunderstanding, I joined them before converting to base64
[Corion]: Also, I would be wary of encodings and try to make really sure that both input strings are UTF-8. Maybe join the input strings from one source together to see whether they decode as bad or not
[Corion]: LanX: Then the problem should persist without encoding to base64 too ;)
[LanX]: I think it's a flag problem ... I'll produce a reprodocable example for SOPW
[Corion]: "flag problem" to me sounds like "contains UTF-8 bytes but was never properly decoded to an UTF-8 string"
[LanX]: not my code ...
[choroba]: yeah, sounds like one of the strings is not flagged as UTF-8
[choroba]: which usually means its input wasn't handled correctly

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