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Shortens line lengths of comments in Perl guide

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Timothy Malcham 2014-06-10 10:06:08 -07:00
parent 20f5a00de4
commit fac959a398
1 changed files with 12 additions and 6 deletions
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18
perl.html.markdown
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@ -28,7 +28,8 @@ Perl 5 runs on over 100 platforms from portables to mainframes and is suitable f
my $animal = "camel"; my $animal = "camel";
my $answer = 42; my $answer = 42;
# Scalar values can be strings, integers or floating point numbers, and Perl will automatically convert between them as required. # Scalar values can be strings, integers or floating point numbers, and
# Perl will automatically convert between them as required.
## Arrays ## Arrays
# An array represents a list of values: # An array represents a list of values:
@ -49,9 +50,11 @@ my %fruit_color = (
apple => "red", apple => "red",
banana => "yellow", banana => "yellow",
); );
# Scalars, arrays and hashes are documented more fully in perldata. (perldoc perldata). # Scalars, arrays and hashes are documented more fully in perldata.
# (perldoc perldata).
# More complex data types can be constructed using references, which allow you to build lists and hashes within lists and hashes. # More complex data types can be constructed using references, which allow you
# to build lists and hashes within lists and hashes.
#### Conditional and looping constructs #### Conditional and looping constructs
@ -92,7 +95,9 @@ foreach (@array) {
#### Regular expressions #### Regular expressions
# Perl's regular expression support is both broad and deep, and is the subject of lengthy documentation in perlrequick, perlretut, and elsewhere. However, in short: # Perl's regular expression support is both broad and deep, and is the subject
# of lengthy documentation in perlrequick, perlretut, and elsewhere.
# However, in short:
# Simple matching # Simple matching
if (/foo/) { ... } # true if $_ contains "foo" if (/foo/) { ... } # true if $_ contains "foo"
@ -112,8 +117,9 @@ open(my $in, "<", "input.txt") or die "Can't open input.txt: $!";
open(my $out, ">", "output.txt") or die "Can't open output.txt: $!"; open(my $out, ">", "output.txt") or die "Can't open output.txt: $!";
open(my $log, ">>", "my.log") or die "Can't open my.log: $!"; open(my $log, ">>", "my.log") or die "Can't open my.log: $!";
# You can read from an open filehandle using the "<>" operator. In scalar context it reads a single line from # You can read from an open filehandle using the "<>" operator. In scalar
# the filehandle, and in list context it reads the whole file in, assigning each line to an element of the list: # context it reads a single line from the filehandle, and in list context it
# reads the whole file in, assigning each line to an element of the list:
my $line = <$in>; my $line = <$in>;
my @lines = <$in>; my @lines = <$in>;