File Coverage

blib/lib/String/PerlQuote.pm

Criterion	Covered	Total	%
statement	22	25	88.0
branch	2	2	100.0
condition			n/a
subroutine	6	6	100.0
pod	2	2	100.0
total	32	35	91.4

package String::PerlQuote;

our $DATE = '2016-10-07'; # DATE
our $VERSION = '0.02'; # VERSION

use 5.010001;
use strict;
use warnings;

use Exporter;
our @ISA = qw(Exporter);
our @EXPORT_OK = qw(
                       single_quote
                       double_quote
               );

# BEGIN COPY PASTE FROM Data::Dump
my %esc = (
    "\a" => "\\a",
    "\b" => "\\b",
    "\t" => "\\t",
    "\n" => "\\n",
    "\f" => "\\f",
    "\r" => "\\r",
    "\e" => "\\e",
);

# put a string value in double quotes
sub double_quote {
  local($_) = $_[0];
  # If there are many '"' we might want to use qq() instead
  s/([\\\"\@\$])/\\$1/g;
  return qq("$_") unless /[^\040-\176]/;  # fast exit

  s/([\a\b\t\n\f\r\e])/$esc{$1}/g;

  # no need for 3 digits in escape for these
  s/([\0-\037])(?!\d)/sprintf('\\%o',ord($1))/eg;

  s/([\0-\037\177-\377])/sprintf('\\x%02X',ord($1))/eg;
  s/([^\040-\176])/sprintf('\\x{%X}',ord($1))/eg;

  return qq("$_");
}
# END COPY PASTE FROM Data::Dump

sub single_quote {
  local($_) = $_[0];
  s/([\\'])/\\$1/g;
  return qq('$_');
}
1;
# ABSTRACT: Quote a string as Perl does

__END__