| Name : perl-Perl6-Slurp
| |
| Version : 0.051005
| Vendor : obs://build_opensuse_org/devel:languages:perl
|
| Release : 1.2
| Date : 2015-10-05 02:15:24
|
| Group : Development/Libraries/Perl
| Source RPM : perl-Perl6-Slurp-0.051005-1.2.src.rpm
|
| Size : 0.02 MB
| |
| Packager : (none)
| |
| Summary : Implements the Perl 6 \'slurp\' built-in
|
Description :
\'slurp\' takes:
* *
a filename,
* *
a filehandle,
* *
a typeglob reference,
* *
an IO::File object, or
* *
a scalar reference,
converts it to an input stream (using \'open()\' if necessary), and reads in
the entire stream. If \'slurp\' fails to set up or read the stream, it throws
an exception.
If no data source is specified \'slurp\' uses the value of \'$_\' as the
source. If \'$_\' is undefined, \'slurp\' uses the \'AATTARGV\' list, and magically
slurps the contents of _all_ the sources listed in \'AATTARGV\'. Note that the
same magic is also applied if you explicitly slurp < *ARGV>, so the
following three input operations:
$contents = join \"\", < ARGV>
$contents = slurp \\*ARGV;
$/ = undef;
$contents = slurp;
are identical in effect.
In a scalar context \'slurp\' returns the stream contents as a single string.
If the stream is at EOF, it returns an empty string. In a list context, it
splits the contents after the appropriate input record separator and
returns the resulting list of strings.
You can set the input record separator (\'{ irs => $your_irs_here}\') for the
input operation. The separator can be specified as a string or a regex.
Note that an explicit input record separator has no input-terminating
effect in a scalar context; \'slurp\' always reads in the entire input
stream, whatever the \'\'irs\'\' value.
In a list context, changing the separator can change how the input is
broken up within the list that is returned.
If an input record separator is not explicitly specified, \'slurp\' defaults
to \'\"\
\"\' (_not_ to the current value of \'$/\' ndash since Perl 6 doesn\'t
_have_ a \'$/\');
You can also tell \'slurp\' to automagically \'chomp\' the input as it is read
in, by specifying: (\'{ chomp => 1 }\')
Better still, you can tell \'slurp\' to automagically \'chomp\' the input and
_replace_ what it chomps with another string, by specifying: (\'{ chomp =>
\"another string\" }\')
You can also tell \'slurp\' to compute the replacement string on-the-fly by
specifying a subroutine as the \'chomp\' value: (\'{ chomp => sub{...} }\').
This subroutine is passed the string being chomped off, so for example you
could squeeze single newlines to a single space and multiple consecutive
newlines to a two newlines with:
sub squeeze {
my ($removed) = AATT_;
if ($removed =~ tr/\
/\
/ == 1) { return \" \" }
else { return \"\
\
\"; }
}
print slurp(\\*DATA, {irs=>qr/[ \\t]*\
+/, chomp=>\\&squeeze}), \"\
\";
Which would transform:
This is the
first paragraph
This is the
second
paragraph
This, the
third
This one is
the
very
last
to:
This is the first paragraph
This is the second paragraph
This, the third
This one is the very last
Autochomping works in both scalar and list contexts. In scalar contexts
every instance of the input record separator will be removed (or replaced)
within the returned string. In list context, each list item returned with
its terminating separator removed (or replaced).
You can specify I/O layers, either using the Perl 5 notation:
slurp \"< :layer1 :layer2 :etc\", $filename;
or as an array of options:
slurp $filename, [layer1=>1, layer2=>1, etc=>1];
slurp [layer1=>1, layer2=>1, etc=>1], $filename;
or as individual options (each of which must be in a separate hash):
slurp $filename, {layer1=>1}, {layer2=>1}, {etc=>1};
slurp {layer1=>1}, {layer2=>1}, {etc=>1}, $filename;
(...which, of course, would look much cooler in Perl 6:
slurp $filename, :layer1 :layer2 :etc;
slurp :layer1 :layer2 :etc, $filename;
)
A common mistake is to put all the options together in one hash:
slurp $filename, {layer1=>1, layer2=>1, etc=>1};
This is almost always a disaster, since the order of I/O layers is usually
critical, and placing them all in one hash effectively randomizes that
order. Use an array instead:
slurp $filename, [layer1=>1, layer2=>1, etc=>1];
|
RPM found in directory: /packages/linux-pbone/ftp5.gwdg.de/pub/opensuse/repositories/devel:/languages:/perl/openSUSE_Leap_42.1/noarch |
Hmm ... It's impossible ;-) This RPM doesn't exist on any FTP server
Provides :
perl(Perl6::Slurp)
perl-Perl6-Slurp
Requires :
