perltoc.pod

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=item Subroutine, Signal, Sorting Traps

(Signals), (Sort Subroutine), warn() won't let you specify a filehandle

=item OS Traps

(SysV), (SysV)

=item Interpolation Traps

Interpolation, Interpolation, Interpolation, Interpolation, Interpolation,
Interpolation, Interpolation, Interpolation, Interpolation

=item DBM Traps

DBM, DBM

=item Unclassified Traps

C<require>/C<do> trap using returned value, C<split> on empty string with
LIMIT specified

=back

=back

=head2 perlrun - how to execute the Perl interpreter

=over 4

=item SYNOPSIS

=item DESCRIPTION

=over 4

=item #! and quoting on non-Unix systems

OS/2, MS-DOS, Win95/NT, Macintosh, VMS

=item Location of Perl

=item Command Switches

B<-0>[I<digits>], B<-a>, B<-C>, B<-c>, B<-d>, B<-d:>I<foo[=bar,baz]>,
B<-D>I<letters>, B<-D>I<number>, B<-e> I<commandline>, B<-F>I<pattern>,
B<-h>, B<-i>[I<extension>], B<-I>I<directory>, B<-l>[I<octnum>],
B<-m>[B<->]I<module>, B<-M>[B<->]I<module>, B<-M>[B<->]I<'module ...'>,
B<-[mM]>[B<->]I<module=arg[,arg]...>, B<-n>, B<-p>, B<-P>, B<-s>, B<-S>,
B<-T>, B<-u>, B<-U>, B<-v>, B<-V>, B<-V:>I<name>, B<-w>, B<-W>, B<-X>,
B<-x> I<directory>

=back

=item ENVIRONMENT

HOME, LOGDIR, PATH, PERL5LIB, PERL5OPT, PERLLIB, PERL5DB, PERL5SHELL
(specific to the Win32 port), PERL_DEBUG_MSTATS, PERL_DESTRUCT_LEVEL,
PERL_ROOT (specific to the VMS port), SYS$LOGIN (specific to the VMS port)

=back

=head2 perldiag - various Perl diagnostics

=over 4

=item DESCRIPTION

=back

=head2 perllexwarn - Perl Lexical Warnings

=over 4

=item DESCRIPTION

=over 4

=item Default Warnings and Optional Warnings

=item What's wrong with B<-w> and C<$^W>

=item Controlling Warnings from the Command Line

B<-w>, B<-W>, B<-X>

=item Backward Compatibility

=item Category Hierarchy

=item Fatal Warnings

=item Reporting Warnings from a Module

=back

=item TODO

=item SEE ALSO

=item AUTHOR

=back

=head2 perldebtut - Perl debugging tutorial

=over 4

=item DESCRIPTION

=item use strict

=item Looking at data and -w and w

=item help

=item Stepping through code

=item Placeholder for a, w, t, T

=item REGULAR EXPRESSIONS

=item OUTPUT TIPS

=item CGI

=item GUIs

=item SUMMARY

=item SEE ALSO

=item AUTHOR

=item CONTRIBUTORS

=back

=head2 perldebug - Perl debugging

=over 4

=item DESCRIPTION

=item The Perl Debugger

=over 4

=item Debugger Commands

h [command], p expr, x expr, V [pkg [vars]], X [vars], T, s [expr], n
[expr], r, <CR>, c [line|sub], l, l min+incr, l min-max, l line, l subname,
-, w [line], f filename, /pattern/, ?pattern?, L, S [[!]regex], t, t expr,
b [line] [condition], b subname [condition], b postpone subname
[condition], b load filename, b compile subname, d [line], D, a [line]
command, a [line], A, W expr, W, O booloption .., O anyoption? .., O
option=value .., < ?, < [ command ], << command, > ?, > command, >>
command, { ?, { [ command ], {{ command, ! number, ! -number, ! pattern, !!
cmd, H -number, q or ^D, R, |dbcmd, ||dbcmd, command, m expr, man [manpage]

=item Configurable Options

C<recallCommand>, C<ShellBang>, C<pager>, C<tkRunning>, C<signalLevel>,
C<warnLevel>, C<dieLevel>, C<AutoTrace>, C<LineInfo>, C<inhibit_exit>,
C<PrintRet>, C<ornaments>, C<frame>, C<maxTraceLen>, C<arrayDepth>,
C<hashDepth>, C<compactDump>, C<veryCompact>, C<globPrint>, C<DumpDBFiles>,
C<DumpPackages>, C<DumpReused>, C<quote>, C<HighBit>, C<undefPrint>,
C<UsageOnly>, C<TTY>, C<noTTY>, C<ReadLine>, C<NonStop>

=item Debugger input/output

Prompt, Multiline commands, Stack backtrace, Line Listing Format, Frame
listing

=item Debugging compile-time statements

=item Debugger Customization

=item Readline Support

=item Editor Support for Debugging

=item The Perl Profiler

=back

=item Debugging regular expressions

=item Debugging memory usage

=item SEE ALSO

=item BUGS

=back

=head2 perlvar - Perl predefined variables

=over 4

=item DESCRIPTION

=over 4

=item Predefined Names

$ARG, $_, $<I<digits>>, $MATCH, $&, $PREMATCH, $`, $POSTMATCH, $',
$LAST_PAREN_MATCH, $+, @LAST_MATCH_END, @+, $MULTILINE_MATCHING, $*,
input_line_number HANDLE EXPR, $INPUT_LINE_NUMBER, $NR, $,
input_record_separator HANDLE EXPR, $INPUT_RECORD_SEPARATOR, $RS, $/,
autoflush HANDLE EXPR, $OUTPUT_AUTOFLUSH, $|, output_field_separator HANDLE
EXPR, $OUTPUT_FIELD_SEPARATOR, $OFS, $,, output_record_separator HANDLE
EXPR, $OUTPUT_RECORD_SEPARATOR, $ORS, $\, $LIST_SEPARATOR, $",
$SUBSCRIPT_SEPARATOR, $SUBSEP, $;, $OFMT, $#, format_page_number HANDLE
EXPR, $FORMAT_PAGE_NUMBER, $%, format_lines_per_page HANDLE EXPR,
$FORMAT_LINES_PER_PAGE, $=, format_lines_left HANDLE EXPR,
$FORMAT_LINES_LEFT, $-, @LAST_MATCH_START, @-, C<$`> is the same as
C<substr($var, 0, $-[0])>, C<$&> is the same as C<substr($var, $-[0], $+[0]
- $-[0])>, C<$'> is the same as C<substr($var, $+[0])>, C<$1> is the same
as C<substr($var, $-[1], $+[1] - $-[1])>, C<$2> is the same as
C<substr($var, $-[2], $+[2] - $-[2])>, C<$3> is the same as C<substr $var,
$-[3], $+[3] - $-[3])>, format_name HANDLE EXPR, $FORMAT_NAME, $~,
format_top_name HANDLE EXPR, $FORMAT_TOP_NAME, $^,
format_line_break_characters HANDLE EXPR, $FORMAT_LINE_BREAK_CHARACTERS,
$:, format_formfeed HANDLE EXPR, $FORMAT_FORMFEED, $^L, $ACCUMULATOR, $^A,
$CHILD_ERROR, $?, $OS_ERROR, $ERRNO, $!, $EXTENDED_OS_ERROR, $^E,
$EVAL_ERROR, $@, $PROCESS_ID, $PID, $$, $REAL_USER_ID, $UID, $<,
$EFFECTIVE_USER_ID, $EUID, $>, $REAL_GROUP_ID, $GID, $(,
$EFFECTIVE_GROUP_ID, $EGID, $), $PROGRAM_NAME, $0, $[, $], $COMPILING, $^C,
$DEBUGGING, $^D, $SYSTEM_FD_MAX, $^F, $^H, %^H, $INPLACE_EDIT, $^I, $^M,
$OSNAME, $^O, $PERLDB, $^P, 0x01, 0x02, 0x04, 0x08, 0x10, 0x20, 0x40, 0x80,
0x100, 0x200, $LAST_REGEXP_CODE_RESULT, $^R, $EXCEPTIONS_BEING_CAUGHT, $^S,
$BASETIME, $^T, $PERL_VERSION, $^V, $WARNING, $^W, ${^WARNING_BITS},
${^WIDE_SYSTEM_CALLS}, $EXECUTABLE_NAME, $^X, $ARGV, @ARGV, @INC, @_, %INC,
%ENV, $ENV{expr}, %SIG, $SIG{expr}

=item Error Indicators

=item Technical Note on the Syntax of Variable Names

=back

=item BUGS

=back

=head2 perllol - Manipulating Arrays of Arrays in Perl

=over 4

=item DESCRIPTION

=over 4

=item Declaration and Access of Arrays of Arrays

=item Growing Your Own

=item Access and Printing

=item Slices

=back

=item SEE ALSO

=item AUTHOR

=back

=head2 perlopentut - tutorial on opening things in Perl

=over 4

=item DESCRIPTION

=item Open E<agrave> la shell

=over 4

=item Simple Opens

=item Pipe Opens

=item The Minus File

=item Mixing Reads and Writes

=item Filters 

=back

=item Open E<agrave> la C

=over 4

=item Permissions E<agrave> la mode

=back

=item Obscure Open Tricks

=over 4

=item Re-Opening Files (dups)

=item Dispelling the Dweomer

=item Paths as Opens

=item Single Argument Open

=item Playing with STDIN and STDOUT

=back

=item Other I/O Issues

=over 4

=item Opening Non-File Files

=item Binary Files

=item File Locking

=back

=item SEE ALSO 

=item AUTHOR and COPYRIGHT

=item HISTORY

=back

=head2 perlretut - Perl regular expressions tutorial

=over 4

=item DESCRIPTION

=item Part 1: The basics

=over 4

=item Simple word matching

=item Using character classes

=item Matching this or that

=item Grouping things and hierarchical matching

=item Extracting matches

=item Matching repetitions

=item Building a regexp

=item Using regular expressions in Perl

=back

=item Part 2: Power tools

=over 4

=item More on characters, strings, and character classes

=item Compiling and saving regular expressions

=item Embedding comments and modifiers in a regular expression

=item Non-capturing groupings

=item Looking ahead and looking behind

=item Using independent subexpressions to prevent backtracking

=item Conditional expressions

=item A bit of magic: executing Perl code in a regular expression

=item Pragmas and debugging

=back

=item BUGS

=item SEE ALSO

=item AUTHOR AND COPYRIGHT

=over 4

=item Acknowledgments

=back

=back

=head2 perlre - Perl regular expressions

=over 4

=item DESCRIPTION

i, m, s, x

=over 4

=item Regular Expressions

cntrl, graph, print, punct, xdigit

=item Extended Patterns

C<(?#text)>, C<(?imsx-imsx)>, C<(?:pattern)>, C<(?imsx-imsx:pattern)>,
C<(?=pattern)>, C<(?!pattern)>, C<(?<=pattern)>, C<(?<!pattern)>, C<(?{
code })>, C<(??{ code })>, C<< (?>pattern) >>,
C<(?(condition)yes-pattern|no-pattern)>, C<(?(condition)yes-pattern)>

=item Backtracking

=item Version 8 Regular Expressions

=item Warning on \1 vs $1

=item Repeated patterns matching zero-length substring

=item Combining pieces together

C<ST>, C<S|T>, C<S{REPEAT_COUNT}>, C<S{min,max}>, C<S{min,max}?>, C<S?>,
C<S*>, C<S+>, C<S??>, C<S*?>, C<S+?>, C<< (?>S) >>, C<(?=S)>, C<(?<=S)>,
C<(?!S)>, C<(?<!S)>, C<(??{ EXPR })>,
C<(?(condition)yes-pattern|no-pattern)>

=item Creating custom RE engines

=back

=item BUGS

=item SEE ALSO

=back

=head2 perlref - Perl references and nested data structures

=over 4

=item NOTE

=item DESCRIPTION

=over 4

=item Making References

=item Using References

=item Symbolic references

=item Not-so-symbolic references

=item Pseudo-hashes: Using an array as a hash

=item Function Templates

=back

=item WARNING

=item SEE ALSO

=back

=head2 perlform - Perl formats

=over 4

=item DESCRIPTION

=over 4

=item Format Variables

=back

=item NOTES

=over 4

=item Footers

=item Accessing Formatting Internals

=back

=item WARNINGS

=back

=head2 perlboot - Beginner's Object-Oriented Tutorial

=over 4

=item DESCRIPTION

=over 4

=item If we could talk to the animals...

=item Introducing the method invocation arrow

=item Invoking a barnyard

=item The extra parameter of method invocation

=item Calling a second method to simplify things

=item Inheriting the windpipes

=item A few notes about @ISA

=item Overriding the methods

=item Starting the search from a different place

=item The SUPER way of doing things

=item Where we're at so far...

=item A horse is a horse, of course of course -- or is it?

=item Invoking an instance method

=item Accessing the instance data

=item How to build a horse

=item Inheriting the constructor

=item Making a method work with either classes or instances

=item Adding parameters to a method

=item More interesting instances

=item A horse of a different color

=item Summary

=back

=item SEE ALSO

=item COPYRIGHT

=back

=head2 perltoot - Tom's object-oriented tutorial for perl

=over 4

=item DESCRIPTION

=item Creating a Class

=over 4

=item Object Representation

=item Class Interface

=item Constructors and Instance Methods

=item Planning for the Future: Better Constructors

=item Destructors

=item Other Object Methods

=back

=item Class Data

=over 4

=item Accessing Class Data

=item Debugging Methods

=item Class Destructors

=item Documenting the Interface

=back

=item Aggregation

=item Inheritance

=over 4

=item Overridden Methods

=item Multiple Inheritance

=item UNIVERSAL: The Root of All Objects

=back

=item Alternate Object Representations

=over 4

=item Arrays as Objects

=item Closures as Objects

=back

=item AUTOLOAD: Proxy Methods

=over 4

=item Autoloaded Data Methods

=item Inherited Autoloaded Data Methods

=back

=item Metaclassical Tools

=over 4

=item Class::Struct

=item Data Members as Variables

=back

=item NOTES

=over 4

=item Object Terminology

=back

=item SEE ALSO

=item AUTHOR AND COPYRIGHT

=item COPYRIGHT

=over 4

=item Acknowledgments

=back

=back

=head2 perltootc - Tom's OO Tutorial for Class Data in Perl

=over 4

=item DESCRIPTION

=item Class Data in a Can

=item Class Data as Package Variables