$var1 = 'abc~123~def';
print join("\n",split(/\~/,$var1))."\n";
After just throwing at you, I'll try to explain it a little bit. First, I'll write it with some newlines:
1 print
2 join(
3 "\n",
4 split(
5 /\~/,
6 $var1
7 )
8 ).
9 "\n";
Now let's discuss the lines. I'll take them from inside to outside because it should make the things a little bit easier to understand:
split (4) takes a string (6) and returns an array. Each element of the array is a part of the string without the given seperator (5) which must be given as a regular expression. So you could write this part as:
@MyArray = split(/\~/,$var1);
The regular expression in this case has / as start and end chars and an escaped ~.
Everything is seperated now, but you also asked to print every part on a line of it's own, so we need to merge our array back to a string where every part is seperated by newlines. join (2) is perfect for this. It takes the first argument, here we have a newline (3), and puts it between every following argument returning everything as a string. Here, the following arguments are taken from the array returned by split (4). Finally, print (1) shows the result to you.
While writing this, I got a really cool idea which would fit your request but I don't think it will fit your problem. Just to be complete, here ist another solution:
$var1 = 'abc~123~def';
$var1 =~ s/\~/\n/g;
print "$var1\n";
;
This one replaces every ~ with a \n using a regular expression:
=~ starts the expression
s means "replace", without it, the expression would only do a match
/ is the start char of the expression
\~ is the seperator char (escaped by \)
/ is the end char for the match part and the start char for the replacement part
\n is a newline, the thing witch should be put in place of the match part
/ is the end char
finally g means "replace all"
Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
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:
- a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, details, 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, summary, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
| |
For: |
|
Use: |
| & | | & |
| < | | < |
| > | | > |
| [ | | [ |
| ] | | ] |
Link using PerlMonks shortcuts! What shortcuts can I use for linking?
See Writeup Formatting Tips and other pages linked from there for more info.