First of all, I'd like open
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;
Argument "test.pl" isn't numeric in addition (+) at test.pl line 2.
Use of uninitialized value in print at test.pl 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;
Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
Read Where should I post X? if you're not absolutely sure you're posting in the right place.
Please read these before you post! —
Posts may use any of the Perl Monks Approved HTML tags:
Outside of code tags, you may need to use entities for some characters:
- a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
Link using PerlMonks shortcuts! What shortcuts can I use for linking?
See Writeup Formatting Tips and other pages linked from there for more info.
| & || & |
| < || < |
| > || > |
| [ || [ |
| ] || ] ||