Index

!

• !!
  • prefix operator [1]
• !
  • logical operator [1]
  • prefix operator [1]
• !~
  • infix operator [1]
  • negated regex bind [1]
  • string operator [1]
• !=
  • numeric comparison operator [1]

"

• ""
  • circumfix operator [1]

$

• $\ [1]
• $. [1] [2]
• $, [1]
• $" [1] [2]
• $$ [1]
• $| [1] [2] [3]
• $& [1]
• $#
  • sigil [1]
• $/ [1] [2] [3] [4]
• $! [1] [2]
• $' [1]
• $
  • end of string before newline regex metacharacter [1]
  • sigil [1] [2] [3]
• $` [1]
• $@ [1] [2] [3]

%

• %
  • numeric operator [1]
  • sigil [1]
• %=
  • numeric operator [1]
• %+ [1] [2]

&

• &=
  • bitwise operator [1]
• &&
  • logical operator [1]
• &
  • bitwise operator [1]
  • sigil [1] [2]

'

• ''
  • circumfix operator [1]

(

• (?:)
  • non-capturing regex group [1]
• (?!...)
  • zero-width negative look-ahead regex assertion [1]
• (?<!...)
  • zero-width negative look-behind regex assertion [1]
• (?<=...)
  • zero-width positive look-behind regex assertion [1]
• (?<>)
  • regex named capture [1]
• ()
  • capturing regex metacharacters [1]
  • circumfix operator [1]
  • empty list [1]
  • postcircumfix operator [1]
• (?=...)
  • zero-width positive look-ahead regex assertion [1]

*

• *
  • numeric operator [1]
  • sigil [1]
  • zero or more regex quantifier [1]
• *?
  • non-greedy zero or one regex quantifier [1]
• **
  • numeric operator [1]
• *=
  • numeric operator [1]
• **=
  • numeric operator [1]

+

• +
  • numeric operator [1]
  • one or more regex quantifier [1]
  • prefix operator [1]
  • unary operator [1]
• +=
  • numeric operator [1]
• ++
  • auto-increment operator [1]
  • prefix operator [1]
• +?
  • non-greedy one or more regex quantifier [1]

,

• ,
  • operator [1]

-

• --
  • numeric operator [1]
  • prefix operator [1]
• -
  • character class range regex metacharacter [1]
  • numeric operator [1]
  • prefix operator [1]
• ->
  • dereferencing arrow [1]
• -=
  • numeric operator [1]

.

• .
  • anything but newline regex metacharacter [1]
  • infix operator [1]
  • string operator [1]
• ..
  • flip-flop operator [1]
  • infix operator [1]
  • range operator [1] [2]
• .=
  • infix operator [1]
• ...
  • infix operator [1]

/

• /=
  • numeric operator [1]
• //
  • circumfix operator [1]
  • infix operator [1] [2]
  • logical operator [1]
• /
  • numeric operator [1]
• //=
  • infix operator [1]

0

• $0 [1]
• 0 [1]
• 0b [1]
• 0x [1]

1

• $1
  • regex metacharacter [1]

2

• $2
  • regex metacharacter [1]

:

• ::
  • package name separator [1]

<

• <<
  • bitwise operator [1]
• <
  • numeric comparison operator [1]
• <=>
  • numeric comparison operator [1]
• <>
  • circumfix readline operator [1]
• <<=
  • bitwise operator [1]
• <=
  • numeric comparison operator [1]

=

• =>
  • fat comma operator [1] [2]
• ==
  • numeric comparison operator [1]
• =~
  • infix operator [1]
  • regex bind [1]
  • string operator [1]

>

• >=
  • numeric comparison operator [1]
• >>
  • bitwise operator [1]
• >
  • numeric comparison operator [1]
• >>=
  • bitwise operator [1]

?

• ?
  • zero or one regex quantifier [1] [2]
• ??
  • non-greedy zero or one regex quantifier [1]
• ?:
  • logical operator [1]
  • ternary conditional operator [1]

@

• @
  • sigil [1] [2]

A

• \A
  • start of line regex metacharacter [1]
  • start of string regex metacharacter [1]
• $a [1]
• ActivePerl [1]
• aliases [1]
• aliasing [1] [2]
• aliasing
  • iteration [1]
• allomorphism [1]
• amount context [1]
• anchors
  • end of string [1]
  • end of string before newline [1]
  • start of string [1]
  • start of string after newline [1]
• and
  • logical operator [1]
• anonymous functions
  • implicit [1]
  • names [1]
• anonymous variables [1]
• arguments
  • named [1]
• @ARGV [1] [2]
• arity [1]
• ARRAY [1]
• arrays [1] [2]
• arrays
  • anonymous [1]
  • each [1]
  • interpolation [1]
  • pop [1]
  • push [1]
  • references [1]
  • shift [1]
  • slices [1]
  • splice [1]
  • unshift [1]
• ASCII [1]
• associativity [1]
• associativity
  • disambiguation [1]
  • left [1]
  • right [1]
• atom [1]
• attributes
  • default values [1]
  • objects [1]
  • ro(read only) [1]
  • rw(read-write) [1]
  • typed [1]
  • untyped [1]
• attributespragma [1]
• autodie [1]
• autodiepragma [1]
• autoflush() [1]
• auto-increment [1]
• AUTOLOAD [1] [2]
• AUTOLOAD
  • code installation [1]
  • delegation [1]
  • drawbacks [1]
  • redispatch [1]
• $AUTOLOAD [1]
• autovivification [1] [2] [3]
• autovivificationpragma [1]

B

• \B
  • non-word boundary regex metacharacter [1]
• \b
  • word boundary regex metacharacter [1]
• $b [1]
• baby Perl [1]
• barewords [1]
• barewords
  • cons [1]
  • filehandles [1]
  • function calls [1]
  • hash values [1]
  • pros [1]
  • sort functions [1]
• B::Deparse [1] [2]
• BEGIN [1] [2]
• BEGIN
  • implicit [1]
• Best Practical [1]
• binary [1]
• binmode [1]
• blogs.perl.org [1]
• boolean [1]
• boolean
  • false [1]
  • true [1] [2]
• boolean context [1]
• buffering [1]
• builtins
  • == [1]
  • <<>> [1]
  • ... [1]
  • binmode [1] [2]
  • bless [1]
  • caller [1] [2]
  • chdir [1]
  • chomp [1] [2]
  • chr [1]
  • close [1] [2]
  • closedir [1]
  • defined [1] [2]
  • delete [1]
  • die [1]
  • do [1]
  • each [1] [2] [3]
  • eof [1]
  • eq [1]
  • eval [1] [2] [3]
  • exists [1]
  • for [1] [2]
  • foreach [1]
  • given [1] [2]
  • glob [1]
  • goto [1] [2]
  • grep [1]
  • index [1]
  • keys [1] [2]
  • lc [1]
  • length [1]
  • local [1] [2] [3]
  • map [1] [2]
  • no [1] [2]
  • open [1] [2]
  • opendir [1]
  • ord [1]
  • our [1]
  • overriding [1]
  • package [1] [2] [3]
  • package
    • BLOCK [1]
  • pop [1] [2] [3]
  • print [1] [2] [3]
  • prototype [1]
  • push [1] [2] [3] [4]
  • readdir [1]
  • readline [1] [2]
  • rename [1]
  • require [1]
  • reverse [1]
  • say [1] [2] [3]
  • scalar [1]
  • shift [1] [2] [3]
  • sort [1] [2] [3] [4]
  • splice [1] [2]
  • state [1] [2]
  • sub [1] [2] [3] [4]
  • SUPER:: [1]
  • sysopen [1]
  • tie [1] [2]
  • tied [1]
  • uc [1]
  • unlink [1]
  • unshift [1] [2]
  • use [1] [2]
  • values [1] [2]
  • wantarray [1]
  • warn [1]
  • when [1]
  • while [1]
• \b{wb}
  • word boundary regex metacharacter [1]

C

• call frame [1]
• can() [1] [2] [3]
• Carp [1] [2]
• Carp
  • carp() [1] [2]
  • cluck() [1]
  • confess() [1]
  • croak() [1] [2]
  • verbose [1]
• carton [1]
• case-sensitivity [1]
• Catalyst [1]
• CGI [1]
• Champoux, Yanick [1]
• character classes [1]
• charnamespragma [1]
• CHECK [1]
• circular references [1]
• circumfix [1]
• class method [1]
• Class::Accessor [1]
• classes [1] [2]
• Class::MOP [1] [2]
• Class::MOP::Class [1]
• closures [1]
• closures
  • installing into symbol table [1]
  • parametric [1]
• cmp
  • string comparison operator [1]
• cmp_ok() [1]
• CODE [1]
• code generation [1]
• codepoint [1]
• coercion [1] [2] [3]
• coercion
  • boolean [1]
  • cached [1]
  • dualvars [1]
  • numeric [1]
  • reference [1]
  • string [1]
• command-line arguments
  • -t [1]
  • -T [1]
  • -W [1]
  • -w [1]
  • -X [1]
• concatenation [1]
• constantpragma [1]
• constants [1]
• constants
  • barewords [1]
• context [1] [2]
• context
  • amount [1]
  • boolean [1]
  • conditional [1]
  • explicit [1]
  • list [1]
  • numeric [1]
  • scalar [1]
  • string [1]
  • value [1]
  • void [1]
• Contextual::Return [1]
• control flow [1]
• control flow directives [1]
• control flow directives
  • else [1]
  • elsif [1]
  • if [1]
  • ternary conditional [1]
  • unless [1]
• Conway, Damian [1]
• CPAN [1] [2] [3]
• CPAN
  • App::cpanminus [1]
  • App::local::lib::helper [1]
  • App::perlbrew [1] [2]
  • Attribute::Handlers [1]
  • Attribute::Lexical [1]
  • autobox [1]
  • autovivification [1]
  • Carp::Always [1]
  • Carton [1]
  • Catalyst [1]
  • Class::Load [1] [2]
  • Class::MOP [1]
  • Class::MOP::Attribute [1]
  • Class::MOP::Method [1]
  • Const::Fast [1] [2]
  • CPAN::Mini [1] [2]
  • cpanmini [1]
  • CPAN.pm [1] [2]
  • CPANTS [1]
  • DBICx::TestDatabase [1]
  • DBIx::Class [1]
  • Devel::Cover [1]
  • Dist::Zilla [1]
  • Exception::Class [1]
  • File::chdir [1]
  • File::pushd [1]
  • File::Slurper [1]
  • Git::CPAN::Patch [1]
  • indirect [1] [2]
  • IO::All [1]
  • Kavorka [1]
  • local::lib [1]
  • Memoize [1]
  • Method::Signatures [1]
  • Module::Build [1]
  • Module::Pluggable [1]
  • Module::Starter [1]
  • Moo [1]
  • Moops [1] [2]
  • Moose [1]
  • Moose::Exporter [1]
  • Moose::Manual [1]
  • Moose::Role [1]
  • MooseX::Declare [1]
  • MooseX::MultiMethods [1]
  • MooseX::Params::Validate [1]
  • namespace::autoclean [1]
  • Package::Stash [1] [2]
  • PadWalker [1]
  • Params::Validate [1] [2]
  • Path::Class [1]
  • Path::Class::Dir [1]
  • Path::Class::File [1]
  • Path::Tiny [1]
  • perl5i [1]
  • Perl::Critic [1] [2] [3]
  • Perl::Critic::Policy::Dynamic::NoIndirect [1]
  • Perl::MinimumVersion [1]
  • Perl::Tidy [1]
  • Pinto [1]
  • Plack::Test [1]
  • Pod::Webserver [1]
  • Regexp::English [1]
  • Role::Tiny [1]
  • signatures [1]
  • Sub::Exporter [1]
  • Sub::Identify [1]
  • Sub::Install [1]
  • Sub::Name [1]
  • SUPER [1]
  • Task::Kensho [1]
  • Test::Class [1] [2]
  • Test::Database [1]
  • Test::Deep [1] [2]
  • Test::Differences [1] [2]
  • Test::Exception [1] [2]
  • Test::Fatal [1] [2] [3]
  • Test::LongString [1]
  • Test::MockModule [1] [2] [3]
  • Test::MockObject [1] [2] [3]
  • Test::More [1]
  • Test::Most [1]
  • Test::Reporter [1]
  • Test::Routine [1]
  • Test::WWW::Mechanize [1]
  • Test::WWW::Mechanize::PSGI [1]
  • Throwable::Error [1]
  • UNIVERSAL::can [1]
  • UNIVERSAL::isa [1]
  • UNIVERSAL::ref [1]
  • UNIVERSAL::require [1] [2]
  • Want [1]
• cpanm [1]
• cpanminus [1]
• cpan.org [1]
• Cwd [1]
• Cwd
  • cwd() [1]

D

• \d
  • digit regex metacharacter [1]
• -d
  • directory test operator [1]
• \D
  • non-digit regex metacharacter [1]
• DATA [1]
• data structures [1]
• Data::Dumper [1]
• dative notation [1]
• dclone() [1]
• decode() [1]
• default variables
  • @_ [1]
  • $_ [1]
  • @ARGV [1]
  • array [1]
  • scalar [1]
• defined-or [1]
• defined-or
  • logical operator [1]
• delegation [1]
• dereferencing [1]
• DESTROY [1]
• destructive update [1]
• dispatch [1]
• dispatch table [1]
• distribution [1] [2]
• DOES() [1] [2]
• DRY [1]
• dualvar() [1]
• dualvars [1]
• duck typing [1]
• DWIM [1] [2]
• dwimmery [1]
• dynamic scope [1]

E

• -e
  • file exists operator [1]
• \E
  • reenable metacharacters regex metacharacter [1]
• /e
  • substitution evaluation regex modifier [1]
• efficacy [1]
• empty list [1]
• encapsulation [1] [2]
• encode() [1]
• Encode [1]
• encoding [1] [2]
• END [1]
• English [1]
• Enlightened Perl Organization [1]
• %ENV [1]
• eq
  • string comparison operator [1]
• $ERRNO [1]
• escaping [1] [2]
• eval [1]
• eval
  • block [1]
  • string [1]
• $EVAL_ERROR [1]
• exceptions [1]
• exceptions
  • $@ [1] [2]
  • catching [1] [2]
  • caveats [1]
  • core [1]
  • custom classes withException::Class [1]
  • die [1]
  • handling safely withTry::Tiny [1]
  • rethrowing [1]
  • throwing [1]
  • throwing objects [1]
  • throwing strings [1]
• Exporter [1]
• Exporter
  • @EXPORT [1]
  • @EXPORT_OK [1]
• exporting [1]
• ExtUtils::MakeMaker [1] [2] [3]

F

• -f
  • file test operator [1]
• false [1]
• featurepragma [1]
• File::Copy [1]
• filehandles [1]
• filehandles
  • references [1]
  • STDERR [1]
  • STDIN [1]
  • STDOUT [1]
• files
  • absolute paths [1]
  • copying [1]
  • deleting [1]
  • hidden [1]
  • moving [1]
  • relative paths [1]
  • removing [1]
  • slurping [1]
• File::Spec [1]
• fixity [1]
• fixity
  • circumfix [1]
  • infix [1]
  • postcircumfix [1]
  • postfix [1]
  • prefix [1]
• flip-flop [1]
• floating-point values [1]
• fully-qualified name [1]
• function [1]
• functions
  • aliasing parameters [1]
  • anonymous [1]
  • avoid calling as methods [1]
  • call frame [1]
  • closures [1]
  • declaration [1]
  • dispatch table [1]
  • first-class [1]
  • forward declaration [1]
  • goto [1]
  • higher order [1]
  • importing [1]
  • invoking [1]
  • misfeatures [1]
  • parameters [1]
  • Perl 1 [1]
  • Perl 4 [1]
  • predeclaration [1]
  • references [1]
  • sigil [1]

G

• /g
  • global match regex modifier [1]
• \G
  • global match anchor regex metacharacter [1]
• garbage collection [1]
• ge
  • string comparison operator [1]
• genericity [1]
• Github [1]
• gitpan [1]
• global variables
  • $& [1]
  • $! [1]
  • $. [1] [2]
  • $" [1]
  • $` [1]
  • $@ [1]
  • $/ [1] [2] [3]
  • %+ [1] [2]
  • $' [1]
  • $$ [1]
  • $| [1] [2]
  • $\ [1]
  • $, [1]
  • $0 [1]
  • @ARGV [1]
  • $ERRNO [1]
  • $EVAL_ERROR [1]
  • @INC [1]
  • $INPUT_LINE_NUMBER [1]
  • $INPUT_RECORD_SEPARATOR [1]
  • $LIST_SEPARATOR [1]
  • $OUTPUT_AUTOFLUSH [1]
  • $PID [1]
  • $PROGRAM_NAME [1]
  • %SIG [1]
  • $^W [1]
• goto [1]
• goto
  • tailcall [1]
• greedy quantifiers [1]
• gt
  • string comparison operator [1]

H

• HASH [1]
• hashes [1] [2]
• hashes
  • bareword keys [1]
  • caching [1]
  • counting items [1]
  • declaring [1]
  • each [1]
  • exists [1]
  • finding uniques [1]
  • keys [1]
  • locked [1]
  • named parameters [1]
  • references [1]
  • slicing [1]
  • values [1] [2]
• Hash::Util [1]
• Hash::Util
  • lock_hash [1]
  • lock_keys [1]
  • lock_value [1]
  • unlock_hash [1]
• heredocs [1]
• higher order functions [1]
• Higher Order Perl [1]

I

• /i
  • case-insensitive regex modifier [1]
• identifiers [1]
• idioms [1]
• idioms
  • dispatch table [1]
• import() [1]
• %INC [1]
• @INC [1] [2]
• increment
  • string [1]
• indirect object notation [1]
• infix [1]
• inheritance [1]
• INIT [1]
• $INPUT_LINE_NUMBER [1]
• $INPUT_RECORD_SEPARATOR [1]
• instance method [1]
• integers [1]
• interpolation [1]
• interpolation
  • arrays [1]
• introspection [1]
• IO [1]
• IO layers [1] [2]
• IO::File [1] [2] [3]
• IO::File
  • autoflush() [1]
  • input_line_number() [1]
  • input_record_separator() [1]
• IO::Handle [1] [2]
• IO::Seekable
  • seek() [1]
• IRC [1]
• IRC
  • #catalyst [1]
  • #moose [1]
  • #perl [1]
  • #perl-help [1]
• is() [1]
• @ISA [1]
• isa() [1] [2]
• isa_ok() [1]
• isnt() [1]
• iteration
  • aliasing [1]
  • scoping [1]

J

• JSON [1]

K

• \K
  • keep regex assertion [1]

L

• Larry Wall [1]
• Latin-1 [1]
• le
  • string comparison operator [1]
• left associativity [1]
• lexical scope [1]
• lexical shadowing [1]
• lexical warnings [1]
• lexicals
  • lifecycle [1]
  • pads [1]
• lexpads [1]
• like [1]
• list context [1]
• list context
  • arrays [1]
• $LIST_SEPARATOR [1] [2]
• listary [1]
• lists [1]
• looks_like_number() [1]
• looping directives
  • for [1]
  • foreach [1]
• loops
  • continue [1]
  • control [1]
  • do [1]
  • for [1]
  • labels [1]
  • last [1]
  • nested [1]
  • next [1]
  • redo [1]
  • until [1]
  • while [1]
• lt
  • string comparison operator [1]
• lvalue [1]

M

• m//
  • match operator [1]
• /m
  • multiline regex modifier [1]
• magic variables
  • $! [1]
  • $/ [1]
  • $| [1]
  • $@ [1] [2]
  • $^H [1]
• maintainability [1]
• map
  • Schwartzian transform [1]
• Math::BigFloat [1]
• Math::BigInt [1]
• memory management
  • circular references [1]
• meta object protocol [1]
• metacharacters
  • regex [1]
• metaclass [1]
• MetaCPAN [1]
• metacpan [1]
• metacpan.org [1]
• metaprogramming [1] [2]
• method dispatch [1] [2]
• method resolution order [1]
• methods
  • accessor [1]
  • AUTOLOAD [1]
  • avoid calling as functions [1] [2]
  • calling with references [1]
  • class [1] [2]
  • constructor [1]
  • dispatch order [1]
  • instance [1]
  • invocant [1]
  • mutator [1]
  • resolution [1]
• modules [1] [2]
• modules
  • case-sensitivity [1]
  • implicitBEGIN [1]
  • pragmas [1]
• moose [1]
• Moose [1]
• Moose
  • attribute inheritance [1]
  • compared to default Perl OO [1]
  • DOES() [1]
  • extends [1]
  • inheritance [1]
  • isa() [1]
  • metaprogramming [1]
  • MOP [1]
  • override [1]
  • overriding methods [1]
• Moose::Util::TypeConstraints [1]
• MooseX::Types [1]
• MRO [1]
• multiple inheritance [1] [2]

N

• \N{}
  • escape sequence for named character encodings [1]
• names [1]
• namespaces [1] [2] [3]
• namespaces
  • fully qualified [1]
  • multi-level [1]
  • open [1]
• ne
  • string comparison operator [1]
• nested data structures [1]
• not
  • logical operator [1]
• null filehandle [1]
• nullary [1]
• numbers [1]
• numbers
  • false [1]
  • representation prefixes [1]
  • true [1]
  • underscore separator [1]
• numeric context [1]
• numeric quantifiers [1]
• numification [1] [2]

O

• objects [1]
• objects
  • inheritance [1]
  • invocant [1]
  • meta object protocol [1]
  • multiple inheritance [1]
• octet [1]
• ok() [1]
• OO [1]
• OO
  • accessor methods [1]
  • attributes [1]
  • AUTOLOAD [1]
  • bless [1]
  • class methods [1] [2]
  • classes [1]
  • constructors [1]
  • delegation [1]
  • dispatch [1]
  • duck typing [1]
  • encapsulation [1]
  • genericity [1]
  • has-a [1]
  • immutability [1]
  • inheritance [1] [2] [3]
  • instance data [1]
  • instance methods [1]
  • instances [1]
  • invocants [1]
  • @ISA [1]
  • is-a [1]
  • Liskov Substitution Principle [1]
  • metaclass [1]
  • method dispatch [1]
  • methods [1] [2]
  • mixins [1]
  • monkeypatching [1]
  • multiple inheritance [1]
  • mutator methods [1]
  • polymorphism [1]
  • proxying [1]
  • single responsibility principle [1]
  • state [1]
• OO: composition [1]
• open [1]
• operands [1]
• operators [1]
• operators
  • != [1]
  • ++ [1]
  • %= [1]
  • ! [1]
  • // [1] [2] [3]
  • ?: [1]
  • / [1]
  • !~ [1] [2]
  • *= [1]
  • > [1]
  • += [1]
  • || [1]
  • * [1]
  • ... [1]
  • <> [1]
  • < [1]
  • &= [1]
  • + [1]
  • -> [1]
  • |= [1]
  • >= [1]
  • , [1]
  • ~~ [1] [2]
  • >> [1]
  • **= [1]
  • <=> [1] [2]
  • - [1]
  • % [1]
  • <<= [1]
  • -= [1]
  • ^ [1]
  • == [1]
  • -- [1]
  • << [1]
  • ** [1]
  • /= [1]
  • =~ [1] [2]
  • => [1] [2]
  • & [1]
  • | [1]
  • && [1]
  • >>= [1]
  • . [1] [2]
  • .. [1] [2]
  • ^= [1]
  • \ [1] [2]
  • <= [1]
  • and [1]
  • arithmetic [1]
  • arity [1]
  • auto-increment [1]
  • bitwise [1]
  • characteristics [1]
  • cmp [1] [2]
  • comma [1]
  • -d [1]
  • defined-or [1] [2]
  • -e [1]
  • eq [1] [2]
  • -f [1]
  • fixity [1]
  • flip-flop [1]
  • ge [1]
  • gt [1]
  • le [1]
  • logical [1]
  • lt [1]
  • m// [1]
  • match [1]
  • ne [1] [2]
  • not [1]
  • numeric [1]
  • or [1]
  • q [1]
  • qq [1]
  • qr// [1]
  • quoting [1]
  • qw() [1]
  • -r [1]
  • range [1] [2]
  • repetition [1]
  • s/// [1]
  • -s [1]
  • smart match [1]
  • string [1]
  • substitution [1]
  • triple-dot [1]
  • whatever [1]
  • -X [1]
  • x [1]
  • xor [1]
• or
  • logical operator [1]
• orcish maneuver [1]
• $OUTPUT_AUTOFLUSH [1]
• overloading [1]
• overloading
  • boolean [1]
  • inheritance [1]
  • numeric [1]
  • string [1]
• overloadpragma [1]

P

• p5p [1]
• packages [1]
• packages
  • bareword names [1]
  • namespaces [1]
  • scope [1]
  • versions [1]
• parameters [1]
• parameters
  • aliasing [1]
  • flattening [1]
  • named [1]
  • slurping [1]
• parentpragma [1]
• partial application [1]
• PAUSE [1]
• Perl 5 Porters [1]
• Perl Buzz [1]
• Perl Mongers [1]
• Perl Weekly [1]
• perlbrew [1] [2]
• perl.com [1]
• perldoc [1]
• perldoc
  • -f(search perlfunc) [1]
  • -l [1]
  • -lm [1]
  • -m [1]
  • -q(search perlfaq) [1]
  • -v(search perlvar) [1]
• perl.org [1]
• $PID [1]
• Pinto [1]
• plan() [1]
• Planet Perl [1]
• Planet Perl Iron Man [1]
• POD [1]
• POD
  • perldoc [1]
  • podchecker [1]
  • Pod::Webserver [1]
• polymorphism [1]
• postcircumfix [1]
• postfix [1]
• pragmas [1]
• pragmas
  • attributes [1]
  • autodie [1] [2]
  • autovivification [1]
  • charnames [1]
  • constant [1] [2]
  • disabling [1]
  • enabling [1]
  • experimental [1]
  • feature [1] [2] [3]
  • less [1]
  • overload [1]
  • overloading [1]
  • parent [1]
  • scope [1]
  • strict [1] [2] [3] [4]
  • subs [1] [2]
  • useful core pragmas [1]
  • utf8 [1] [2]
  • vars [1]
  • warnings [1] [2]
  • writing [1]
• precedence [1]
• precedence
  • disambiguation [1]
• prefix [1]
• principle of least astonishment [1]
• $PROGRAM_NAME [1]
• prototypes [1]
• prototypes
  • barewords [1]
• prove [1] [2]
• proveall [1]
• proxying [1]

Q

• \Q
  • disable metacharacters regex metacharacter [1]
• q
  • single quoting operator [1]
• qq
  • double quoting operator [1]
• qr//
  • compile regex operator [1]
• quantifiers
  • greedy [1]
  • zero or more [1]
• qw()
  • quote words operator [1]

R

• -r
  • readable file test operator [1]
• /r
  • non-destructive substitution modifier [1]
• range [1]
• readline [1]
• recursion [1]
• recursion
  • guard conditions [1]
• references [1]
• references
  • aliases [1]
  • anonymous arrays [1]
  • arrays [1]
  • dereferencing [1]
  • filehandles [1]
  • functions [1]
  • hashes [1]
  • \operator [1]
  • reference counting [1]
  • scalar [1]
  • weak [1]
• reflection [1]
• regex [1]
• regex
  • () [1]
  • . [1]
  • $1 [1]
  • $2 [1]
  • alternation [1]
  • anchors [1]
  • assertions [1]
  • atom [1]
  • \B [1]
  • capture [1]
  • captures [1] [2]
  • case-insensitive [1]
  • \d [1]
  • \D [1]
  • disabling metacharacters [1]
  • embedded modifiers [1]
  • /emodifier [1]
  • engine [1]
  • escaping metacharacters [1]
  • extended readability [1]
  • first-class [1]
  • \G [1]
  • global match [1]
  • global match anchor [1]
  • /gmodifier [1]
  • /imodifier [1]
  • keep assertion [1]
  • literals [1]
  • metacharacters [1] [2]
  • /mmodifier [1]
  • modification [1]
  • modifiers [1]
  • multiline [1]
  • named captures [1]
  • non-destructive substitution [1]
  • numbered captures [1]
  • one or more quantifier [1]
  • qr// [1]
  • quantifiers [1]
  • /rmodifier [1]
  • \s [1]
  • \S [1]
  • single line [1]
  • /smodifier [1]
  • substitution [1]
  • substitution evaluation [1]
  • \w [1]
  • \W [1]
  • whitespace [1]
  • /xmodifier [1]
  • zero or one quantifier [1]
  • zero-width assertion [1]
  • zero-width negative look-ahead assertion [1]
  • zero-width negative look-behind assertion [1]
  • zero-width positive look-ahead assertion [1]
  • zero-width positive look-behind assertion [1]
• Regexp [1]
• Regexp::Common [1]
• Regexp::English [1]
• regular expressions [1]
• right associativity [1]
• roles [1]
• roles
  • allomorphism [1]
  • composition [1]
• RT [1]
• rvalue [1]

S

• -s
  • non-empty file test operator [1]
• s///
  • substitution operator [1]
• /s
  • single line regex modifier [1]
• \S
  • non-whitespace regex metacharacter [1]
• \s
  • whitespace regex metacharacter [1]
• SCALAR [1]
• scalar context [1]
• scalar variables [1]
• scalars [1] [2]
• scalars
  • boolean values [1]
  • references [1]
• Scalar::Util [1] [2] [3] [4] [5]
• Scalar::Util
  • looks_like_number [1]
• Schwartzian transform [1]
• scope [1] [2]
• scope
  • dynamic [1]
  • iterator [1]
  • lexical [1]
  • lexical shadowing [1]
  • packages [1] [2]
  • state [1]
• search.cpan.org [1]
• $self [1]
• short-circuiting [1] [2]
• %SIG [1]
• $SIG{__WARN__} [1]
• @sigil [1]
• sigil [1]
• sigils [1]
• sigils
  • $ [1] [2] [3]
  • $# [1]
  • @ [1] [2] [3]
  • & [1] [2]
  • * [1]
  • % [1]
  • variant [1]
• slices [1]
• slices
  • array [1]
  • hash [1]
• smart match [1]
• sort [1]
• sort
  • Schwartzian transform [1]
• spaghetti code [1]
• state [1] [2]
• STDERR [1]
• STDIN [1]
• STDOUT [1]
• Storable [1]
• Strawberry Perl [1]
• strict [1]
• strictpragma [1] [2]
• string context [1]
• stringification [1] [2]
• strings [1]
• strings
  • concatenation [1]
  • delimiters [1]
  • double-quoted [1]
  • false [1]
  • heredocs [1]
  • interpolation [1]
  • \N{} [1]
  • operators [1]
  • single-quoted [1]
  • true [1]
  • \x{} [1]
• subroutine [1]
• subspragma [1] [2]
• subtypes [1]
• super globals [1]
• super globals
  • alternatives [1]
  • managing [1]
  • useful [1]
• symbol tables [1] [2] [3]
• symbolic lookups [1]

T

• -T
  • taint command-line argument [1]
• -t
  • enable baby taint command-line argument [1]
• tailcalls [1] [2]
• taint [1]
• taint
  • checking [1]
  • removing sources of [1]
  • untainting [1]
• tainted() [1]
• TAP (Test Anything Protocol) [1]
• TAP::Harness [1] [2]
• ternary conditional [1]
• Test::Builder [1]
• testing [1]
• testing
  • assertion [1]
  • cmp_ok() [1]
  • is() [1]
  • isa_ok() [1]
  • isnt() [1]
  • ok() [1]
  • plan [1]
  • prove [1]
  • proveallalias [1]
  • running tests [1]
  • TAP [1]
  • t/directory [1]
  • Test::Builder [1]
  • .tfiles [1]
• Test::More [1] [2]
• The Perl Foundation [1]
• Tie::File [1]
• Tie::StdArray [1]
• Tie::StdHash [1]
• Tie::StdScalar [1]
• Tim Toady [1]
• TIMTOWTDI [1]
• tr//
  • transliteration operator [1]
• trinary [1]
• true [1]
• truthiness [1]
• Try::Tiny [1] [2]
• typeglobs [1] [2]
• types [1] [2]

U

• unary [1]
• unary conversions
  • boolean [1]
  • numeric [1]
  • string [1]
• undef [1] [2]
• undef
  • coercions [1]
• underscore [1]
• Unicode [1]
• Unicode
  • encoding [1]
• Unicode word boundary metacharacter [1]
• unicode_strings [1]
• unimporting [1]
• UNITCHECK [1]
• UNIVERSAL [1] [2]
• UNIVERSAL
  • can() [1]
• UNIVERSAL::can [1] [2]
• UNIVERSAL::DOES [1]
• UNIVERSAL::isa [1]
• UNIVERSAL::VERSION [1]
• Unix [1]
• untainting [1]
• UTF-8 [1]
• utf8::all [1]
• utf8pragma [1]

V

• value context [1]
• values [1]
• variable [1]
• variables [1]
• variables
  • @_ [1]
  • $_ [1]
  • anonymous [1]
  • @ARGV [1]
  • arrays [1]
  • container type [1]
  • hashes [1]
  • lexical [1]
  • names [1]
  • scalars [1]
  • scope [1]
  • $self [1]
  • sigils [1]
  • super global [1]
  • types [1]
  • value type [1]
• variant sigils [1]
• VERSION() [1] [2]
• $VERSION [1]
• version numbers [1]
• void context [1]

W

• \W
  • non-alphanumeric regex metacharacter [1]
• -W
  • enable warnings command-line argument [1]
• $^W [1]
• -w
  • enable warnings command-line argument [1]
• \w
  • alphanumeric regex metacharacter [1]
• Wall, Larry [1]
• Want [1]
• wantarray [1]
• warnings [1]
• warnings
  • catching [1]
  • fatal [1]
  • registering [1]
• weak references [1]
• websites
  • blogs.perl.org [1]
  • cpan.org [1]
  • gitpan [1]
  • MetaCPAN [1]
  • Perl Buzz [1]
  • Perl Weekly [1]
  • perl.org [1]
  • Planet Perl [1]
  • Planet Perl Iron Man [1]
• word boundary metacharacter [1]

X

• x
  • repetition operator [1]
• -X
  • disable warnings command-line argument [1]
  • file test operators [1]
• /x
  • extended readability regex modifier [1]
• \x{}
  • escape sequence for character encodings [1]
• xor
  • logical operator [1]

Y

• YAML::XS [1]
• YAPC [1]

Z

• \z
  • end of string regex metacharacter [1]
• \Z
  • end of line regex metacharacter [1]

[

• []
  • character class regex metacharacters [1]
  • circumfix operator [1]
  • postcircumfix operator [1]

\

• \
  • prefix operator [1]
  • regex escaping metacharacter [1]

^

• ^
  • bitwise operator [1]
  • negation of character class regex metacharacter [1]
  • start of string after newline regex metacharacter [1]
• ^=
  • bitwise operator [1]

_

• @_ [1] [2]
• $_
  • default scalar variable [1]
• __DATA__ [1]
• __END__ [1]

`

• ``
  • circumfix operator [1]

{

• {}
  • circumfix operator [1]
  • postcircumfix operator [1]
  • regex numeric quantifier [1]

|

• ||=
  • infix operator [1]
• |
  • alternation regex metacharacter [1]
  • bitwise operator [1]
  • infix operator [1]
• |=
  • bitwise operator [1]
  • infix operator [1]
• ||
  • infix operator [1]
  • logical operator [1]

~

• ~~
  • smart match operator [1] [2]
• ~
  • prefix operator [1]