Please try to take it easier. :)
We had many trolls recently, but IMHO this question regarding perldsc is legit.
For example:
Count how many times my is missing here
Declaration of an ARRAY OF ARRAYS
@AoA = (
[ "fred", "barney" ],
[ "george", "jane", "elroy" ],
[ "homer", "marge", "bart" ],
);
Generation of an ARRAY OF ARRAYS
# reading from file
while ( <> ) {
push @AoA, [ split ];
}
# calling a function
for $i ( 1 .. 10 ) {
$AoA[$i] = [ somefunc($i) ];
}
# using temp vars
for $i ( 1 .. 10 ) {
@tmp = somefunc($i);
$AoA[$i] = [ @tmp ];
}
# add to an existing row
push $AoA[0]->@*, "wilma", "betty";
Access and Printing of an ARRAY OF ARRAYS
# one element
$AoA[0][0] = "Fred";
# another element
$AoA[1][1] =~ s/(\w)/\u$1/;
# print the whole thing with refs
for $aref ( @AoA ) {
print "\t [ @$aref ],\n";
}
# print the whole thing with indices
for $i ( 0 .. $#AoA ) {
print "\t [ $AoA[$i]->@* ],\n";
}
# print the whole thing one at a time
for $i ( 0 .. $#AoA ) {
for $j ( 0 .. $AoA[$i]->$#* ) {
print "elem at ($i, $j) is $AoA[$i][$j]\n";
}
}
> > > Many of the examples also run fine in the absence of strict and warnings.
And they still would with my declarations for all Perl 5 versions, even without 'use strict'.
update
But they would fail for versions not supporting ->@* and ->#* , which makes the backwards compatibility argument even more dubious.
-
Are you posting in the right place? Check out Where do I post X? to know for sure.
-
Posts may use any of the Perl Monks Approved HTML tags. Currently these include the following:
<code> <a> <b> <big>
<blockquote> <br /> <dd>
<dl> <dt> <em> <font>
<h1> <h2> <h3> <h4>
<h5> <h6> <hr /> <i>
<li> <nbsp> <ol> <p>
<small> <strike> <strong>
<sub> <sup> <table>
<td> <th> <tr> <tt>
<u> <ul>
-
Snippets of code should be wrapped in
<code> tags not
<pre> tags. In fact, <pre>
tags should generally be avoided. If they must
be used, extreme care should be
taken to ensure that their contents do not
have long lines (<70 chars), in order to prevent
horizontal scrolling (and possible janitor
intervention).
-
Want more info? How to link
or How to display code and escape characters
are good places to start.