diff options
Diffstat (limited to 'Master/tlpkg/tlperl/lib/pods/perlcheat.pod')
-rw-r--r-- | Master/tlpkg/tlperl/lib/pods/perlcheat.pod | 107 |
1 files changed, 0 insertions, 107 deletions
diff --git a/Master/tlpkg/tlperl/lib/pods/perlcheat.pod b/Master/tlpkg/tlperl/lib/pods/perlcheat.pod deleted file mode 100644 index deee2fecdfb..00000000000 --- a/Master/tlpkg/tlperl/lib/pods/perlcheat.pod +++ /dev/null @@ -1,107 +0,0 @@ -=head1 NAME - -perlcheat - Perl 5 Cheat Sheet - -=head1 DESCRIPTION - -This 'cheat sheet' is a handy reference, meant for beginning Perl -programmers. Not everything is mentioned, but 195 features may -already be overwhelming. - -=head2 The sheet - - CONTEXTS SIGILS ref ARRAYS HASHES - void $scalar SCALAR @array %hash - scalar @array ARRAY @array[0, 2] @hash{'a', 'b'} - list %hash HASH $array[0] $hash{'a'} - &sub CODE - *glob GLOB SCALAR VALUES - FORMAT number, string, ref, glob, undef - REFERENCES - \ reference $$foo[1] aka $foo->[1] - $@%&* dereference $$foo{bar} aka $foo->{bar} - [] anon. arrayref ${$$foo[1]}[2] aka $foo->[1]->[2] - {} anon. hashref ${$$foo[1]}[2] aka $foo->[1][2] - \() list of refs - NUMBERS vs STRINGS LINKS - OPERATOR PRECEDENCE = = perldoc.perl.org - -> + . search.cpan.org - ++ -- == != eq ne cpan.org - ** < > <= >= lt gt le ge pm.org - ! ~ \ u+ u- <=> cmp p3rl.org - =~ !~ perlmonks.org - * / % x SYNTAX - + - . foreach (LIST) { } for (a;b;c) { } - << >> while (e) { } until (e) { } - named uops if (e) { } elsif (e) { } else { } - < > <= >= lt gt le ge unless (e) { } elsif (e) { } else { } - == != <=> eq ne cmp ~~ given (e) { when (e) {} default {} } - & - | ^ REGEX METACHARS REGEX MODIFIERS - && ^ string begin /i case insensitive - || // $ str end (bfr \n) /m line based ^$ - .. ... + one or more /s . includes \n - ?: * zero or more /x ignore wh.space - = += -= *= etc ? zero or one /p preserve - , => {3,7} repeat in range /a ASCII /aa safe - list ops | alternation /l locale /d dual - not [] character class /u Unicode - and \b word boundary /e evaluate /ee rpts - or xor \z string end /g global - () capture /o compile pat once - DEBUG (?:p) no capture - -MO=Deparse (?#t) comment REGEX CHARCLASSES - -MO=Terse (?=p) ZW pos ahead . [^\n] - -D## (?!p) ZW neg ahead \s whitespace - -d:Trace (?<=p) ZW pos behind \K \w word chars - (?<!p) ZW neg behind \d digits - CONFIGURATION (?>p) no backtrack \pP named property - perl -V:ivsize (?|p|p)branch reset \h horiz.wh.space - (?&NM) cap to name \R linebreak - \S \W \D \H negate - FUNCTION RETURN LISTS - stat localtime caller SPECIAL VARIABLES - 0 dev 0 second 0 package $_ default variable - 1 ino 1 minute 1 filename $0 program name - 2 mode 2 hour 2 line $/ input separator - 3 nlink 3 day 3 subroutine $\ output separator - 4 uid 4 month-1 4 hasargs $| autoflush - 5 gid 5 year-1900 5 wantarray $! sys/libcall error - 6 rdev 6 weekday 6 evaltext $@ eval error - 7 size 7 yearday 7 is_require $$ process ID - 8 atime 8 is_dst 8 hints $. line number - 9 mtime 9 bitmask @ARGV command line args - 10 ctime 10 hinthash @INC include paths - 11 blksz 3..10 only @_ subroutine args - 12 blcks with EXPR %ENV environment - -=head1 ACKNOWLEDGEMENTS - -The first version of this document appeared on Perl Monks, where several -people had useful suggestions. Thank you, Perl Monks. - -A special thanks to Damian Conway, who didn't only suggest important changes, -but also took the time to count the number of listed features and make a -Perl 6 version to show that Perl will stay Perl. - -=head1 AUTHOR - -Juerd Waalboer <#####@juerd.nl>, with the help of many Perl Monks. - -=head1 SEE ALSO - -=over 4 - -=item * - -L<http://perlmonks.org/?node_id=216602> - the original PM post - -=item * - -L<http://perlmonks.org/?node_id=238031> - Damian Conway's Perl 6 version - -=item * - -L<http://juerd.nl/site.plp/perlcheat> - home of the Perl Cheat Sheet - -=back |