Provides a framework for multiple DBM files.

Allows for a simpler definition of attribute handlers.

Load functions only on demand.

Split a package for autoloading.

Implements byte compilation, a Perl to C translator, and other interesting things. To be used with the 0 package. See also the section Chapter 41.

Benchmarks running times of code.

Loads byte compiler Perl code.

Warns of errors.

Provides Common Gateway Interface (CGI) Classes.

Investigates the search path for a class’s IS-A tree.

Declares struct-like data types as Perl classes.

Provides access to Perl configuration information.

Queries, downloads and builds Perl modules from CPAN sites.

Gets the pathname of the current working directory.

Stringifies Perl data structures, suitable for both printing and eval.

Provides a programmatic interface to the Perl debugging API.

Provides access to Berkeley DB (database) files.

Contans tools for development of Perl itself.

Calculates message digests, like Digest::MD5.

Supplies object methods for directory handles.

Provides screen dump of Perl data.

Dynamically loads C libraries into Perl code.

Supplies tools to deal with character encodings like Unicode, vendor-specific, and various non-Latin-based encodings.

Provides verbose English names for punctuation variables.

Imports environment variables as scalars or arrays.

Imports names for system errors.

Implements default import method for modules.

Assists in the development and maintenance of Perl and Perl extension modules.

Replaces functions with equivalents that die on failure.

Loads the C fcntl.h defines.

Parses filenames.

Runs many file checks on a hierarchy of files.

Compares files or filehandles.

Copies files or filehandles.

Provides MS-DOS-like globbing (with extensions).

Traverses a hierarchy of files.

Provides access to the BSD glob routine.

Creates or removes a series of directories.

Portably performs operations on filenames.

Provides a by name interface to the stat functions.

Ensures safe handling of temporary files.

Keeps more files open than the system permits.

Supplies object methods for filehandles.

Provides simple tools for source filtering.

Provides tools for source filtering.

Locates the directory of the Perl script.

Provides access to the GNU gdbm library.

Provides extensive tools to handle command-line options. Suits all needs.

Provides simple tools to handle command-line options.

Contains general-utility hash subroutines.

Compares 8-bit scalar data according to the current locale.

Queries locale information.

Provides functions for dealing with RFC 3066-style language tags.

Provides tags and names for human languages.

Provides various modules for object-oriented I/O.

Provides an interface to System V Message IPC.

Opens a pipe to a process for both reading and writing.

Opens a pipe to a process for reading, writing, and error handling.

Provides an interface to System V semaphores.

The System V IPC object class.

Contains general-utility list subroutines.

Contains modules to support locales.

Enables arbitrary length float math package.

Enables arbitrary size integer math package.

Enables arbitrary size rational numbers.

Contains functions for complex numbers.

Contains trigonometric functions.

Makes functions faster by trading space for time.

Enables encoding and decoding of base64 strings.

Enables encoding and decoding of quoted-printable strings.

tied access to NDBM files.

Modules for general networking. Includes network clients for FTP, SMTP, POP3 and SMTP.

Provides access by name to gethostent and friends.

Provides access by name to getnetent and friends.

Provides access by name to getprotoent and friends.

Provides access by name to getservent and friends.

Provides a pseudo-class NEXT that allows method redispatch.

The generic interface to Perl Compiler backends. See also the section Chapter 41.

Disables named opcodes when compiling Perl code.

Contains modules for the PerlIO I/O layers.

Support for encoding layers.

Support module for in-memory I/O.

Contains modules to deal with Plain Old Documentation (POD) files. This includes parsers, and converters to HTML and LATEX.

Prints a usage message from embedded POD documentation.

Provides an interface to IEEE Std 1003.1, POSIX.

Compiles and executes code in restricted compartments.

Contains general-utility scalar subroutines.

tied access to sdbm files.

Searches for keys in dictionary files.

Saves and restores a selected filehandle.

Load functions only on demand.

Runs shell commands transparently within Perl.

Loads the C socket.h defines and structure manipulators.

Provides persistency for Perl data structures.

Implements a Perl6-style switch statement.

Manipulates Perl symbols and their names.

Determines the name of this system.

Provides an interface to the Unix syslog calls.

Enables color screen output using escape sequences.

Provides an interface to the Unix termcap database.

Enables word completion for terminal input.

Provides an interface to various readline packages.

Provides a simple framework for writing test scripts.

Creates an abbreviation table from a list.

Extracts delimited text sequences from strings.

Parses text into a list of tokens.

Implements Donald Knuth’s Soundex Algorithm.

Expands and unexpands tabs.

Enables line wrapping to form simple paragraphs.

Implements old style Perl threads. Obsolete. Use the Chapter 40 pragma instead.

Provides base class definitions for tied arrays.

Accesses the lines of a disk file via a Perl array.

Provides base class definitions for tied filehandles.

Provides base class definitions for tied hashes.

Adds data to a hash when needed.

Provides base classes for tied hashes with references as keys.

Provides base class definitions for tied scalars.

Enables fixed table-size, fixed key-length hashing.

Provides access by name to gmtime.

Contains high resolution alarm, sleep, gettimeofday, and interval timers.

Efficiently computes time from local and GMT time.

Provides access by name to localtime.

Provides an internal object for Time::gmtime and Time::localtime.

Supports Unicode collation algorithms.

Supports Unicode normalization forms.

Provides access to the Unicode Character Database.

Contains the base class for all classes.

Access by name to getgrent and friends.

Access by name to getpwent and friends.

Dynamically loads C libraries into Perl code.