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tamed indentation/whitespace
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@ -47,9 +47,9 @@ my %fruit_color = ("apple", "red", "banana", "yellow");
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# You can use whitespace and the "=>" operator to lay them out more nicely:
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my %fruit_color = (
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apple => "red",
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banana => "yellow",
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);
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apple => "red",
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banana => "yellow",
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);
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# Scalars, arrays and hashes are documented more fully in perldata.
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# (perldoc perldata).
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@ -60,17 +60,17 @@ my %fruit_color = (
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# Perl has most of the usual conditional and looping constructs.
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if ( $var ) {
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...
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} elsif ( $var eq 'bar' ) {
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...
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if ($var) {
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...
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} elsif ($var eq 'bar') {
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...
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} else {
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...
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...
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}
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unless ( condition ) {
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...
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}
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unless (condition) {
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...
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}
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# This is provided as a more readable version of "if (!condition)"
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# the Perlish post-condition way
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@ -78,19 +78,19 @@ print "Yow!" if $zippy;
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print "We have no bananas" unless $bananas;
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# while
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while ( condition ) {
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...
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}
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while (condition) {
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...
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}
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# for and foreach
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for ($i = 0; $i <= $max; $i++) {
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...
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}
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...
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}
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foreach (@array) {
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print "This element is $_\n";
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}
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print "This element is $_\n";
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}
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#### Regular expressions
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@ -129,9 +129,11 @@ my @lines = <$in>;
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# Writing subroutines is easy:
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sub logger {
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my $logmessage = shift;
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open my $logfile, ">>", "my.log" or die "Could not open my.log: $!";
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print $logfile $logmessage;
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my $logmessage = shift;
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open my $logfile, ">>", "my.log" or die "Could not open my.log: $!";
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print $logfile $logmessage;
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}
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# Now we can use the subroutine just as any other built-in function:
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