Created
May 9, 2012 17:20
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Perl functions by prototype
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| #!/usr/bin/env perl | |
| use strict; | |
| use warnings; | |
| open my $fh, 'perldoc perlfunc |' or die "perldoc: $!\n"; | |
| my %functions_by_prototype; | |
| my %seen; | |
| while (<$fh>) { | |
| if (/Perl Functions by Category/ ... /Portability/) { | |
| /",/ or next; | |
| chomp; | |
| s/"//g; | |
| s/ *//g; | |
| s/\*//g; | |
| my @funcs = split /,/, $_; | |
| foreach (@funcs) { | |
| next if $seen{$_}++; | |
| my $proto; | |
| local $@; | |
| eval "\$proto = prototype('CORE::$_')"; | |
| if ($@) { | |
| $proto = 'nothing available'; | |
| } elsif (! defined $proto) { | |
| $proto = 'none'; | |
| } else { | |
| $proto = "($proto)"; | |
| } | |
| push @{$functions_by_prototype{$proto}}, $_; | |
| } | |
| } | |
| } | |
| foreach my $proto (sort { $a cmp $b } keys %functions_by_prototype) { | |
| print join "\n", $proto, map { "\t$_" } sort { $a cmp $b } @{$functions_by_prototype{$proto}}; | |
| print "\n\n"; | |
| } |
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| # this is for Perl v5.10.1 | |
| # | |
| ($$$$$) | |
| msgrcv | |
| ($$$$) | |
| semctl | |
| shmread | |
| shmwrite | |
| ($$$) | |
| msgctl | |
| msgsnd | |
| semget | |
| setpriority | |
| shmctl | |
| shmget | |
| vec | |
| ($$) | |
| atan2 | |
| crypt | |
| gethostbyaddr | |
| getnetbyaddr | |
| getpriority | |
| getservbyname | |
| getservbyport | |
| link | |
| msgget | |
| rename | |
| semop | |
| symlink | |
| truncate | |
| waitpid | |
| ($$;$$) | |
| substr | |
| ($$;$) | |
| index | |
| rindex | |
| ($) | |
| getgrgid | |
| getgrnam | |
| gethostbyname | |
| getnetbyname | |
| getprotobyname | |
| getprotobynumber | |
| getpwnam | |
| getpwuid | |
| sethostent | |
| setnetent | |
| setprotoent | |
| setservent | |
| ($;$) | |
| bless | |
| unpack | |
| ($@) | |
| formline | |
| join | |
| pack | |
| sprintf | |
| syscall | |
| () | |
| break | |
| continue | |
| dump | |
| endgrent | |
| endhostent | |
| endnetent | |
| endprotoent | |
| endpwent | |
| endservent | |
| fork | |
| getgrent | |
| gethostent | |
| getlogin | |
| getnetent | |
| getppid | |
| getprotoent | |
| getpwent | |
| getservent | |
| setgrent | |
| setpwent | |
| time | |
| times | |
| wait | |
| wantarray | |
| (*$$$) | |
| setsockopt | |
| socket | |
| (*$$) | |
| fcntl | |
| getsockopt | |
| ioctl | |
| seek | |
| sysseek | |
| (*$$;$) | |
| send | |
| sysopen | |
| (*$) | |
| bind | |
| connect | |
| flock | |
| listen | |
| opendir | |
| seekdir | |
| shutdown | |
| (*$;$$) | |
| syswrite | |
| (*) | |
| closedir | |
| fileno | |
| getpeername | |
| getsockname | |
| lstat | |
| readdir | |
| rewinddir | |
| stat | |
| telldir | |
| (**$$$) | |
| socketpair | |
| (**) | |
| accept | |
| pipe | |
| (*;$) | |
| binmode | |
| (*;$@) | |
| open | |
| (*\$$$) | |
| recv | |
| (*\$$;$) | |
| read | |
| sysread | |
| (;$$) | |
| setpgrp | |
| (;$) | |
| caller | |
| chdir | |
| exit | |
| getpgrp | |
| gmtime | |
| localtime | |
| rand | |
| reset | |
| sleep | |
| srand | |
| umask | |
| (;*) | |
| close | |
| eof | |
| getc | |
| readline | |
| select | |
| tell | |
| write | |
| (;\@) | |
| pop | |
| shift | |
| (@) | |
| chmod | |
| chown | |
| die | |
| kill | |
| reverse | |
| unlink | |
| warn | |
| (\$) | |
| lock | |
| (\%$$) | |
| dbmopen | |
| (\%) | |
| dbmclose | |
| each | |
| keys | |
| values | |
| (\@;$$@) | |
| splice | |
| (\@@) | |
| push | |
| unshift | |
| (_) | |
| abs | |
| alarm | |
| chr | |
| chroot | |
| cos | |
| exp | |
| hex | |
| int | |
| lc | |
| lcfirst | |
| length | |
| log | |
| oct | |
| ord | |
| quotemeta | |
| readlink | |
| readpipe | |
| ref | |
| rmdir | |
| sin | |
| sqrt | |
| uc | |
| ucfirst | |
| (_;$) | |
| mkdir | |
| none | |
| chomp | |
| chop | |
| default | |
| defined | |
| delete | |
| do | |
| eval | |
| exec | |
| exists | |
| format | |
| given | |
| glob | |
| goto | |
| grep | |
| last | |
| local | |
| map | |
| my | |
| next | |
| no | |
| our | |
| package | |
| pos | |
| printf | |
| prototype | |
| redo | |
| require | |
| return | |
| say | |
| scalar | |
| sort | |
| split | |
| state | |
| study | |
| sub | |
| system | |
| tie | |
| tied | |
| undef | |
| untie | |
| use | |
| when | |
| nothing available | |
| -X | |
| import | |
| m// | |
| q// | |
| qq// | |
| qr// | |
| qw// | |
| qx// | |
| s/// | |
| tr/// | |
| y/// |
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Functions listed as 'none' or 'nothing available' can't be overridden using the techniques laid out in 'perldoc CORE' (http://search.cpan.org/perldoc?CORE). Functions with an actual prototype can be overridden.
If you don't provide a matching prototype on your overridden function, Perl will toss a variety of errors at you.