Hi All,
I hardly ever use map, I'm forcing myself to use it when dealing with whole arrays (when I only want to looking for something in an array I'll use foreach and last). Already I'm struggling to figure out how to do something I'm sure is quite simple.
I have a file with a list of keys and values separated by =. Such as:-
key1 = value1
key2 = value2
I want to read this into a hash. How do I do it with map?
One of my feeble attempts:-
open( INF, 'file' );
%hash = map { my ( $a, $b) = split( / = /, chomp($_) ); $a => $b }
+ <INF>;;
close( INF );
I'm sure with a little help, and if I keep bashing my head against the wall using map for these kinds of situations will finally sink in.
Lyle
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.