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|
#! /usr/bin/env perl
use 5.022;
use warnings;
use experimentals;
use Regexp::Optimizer;
my @builtins;
my $builtins_regex = join '|', reverse sort @builtins;
$builtins_regex = qr{$builtins_regex};
my $optimized_regex = Regexp::Optimizer->new->optimize($builtins_regex);
say $optimized_regex;
#use Benchmark qw( cmpthese );
#
#say $];
#cmpthese 100000, {
# std => sub { for (@builtins) { m/$builtins_regex/ or die } },
# opt => sub { for (@builtins) { m/$optimized_regex/ or die } },
#};
BEGIN {
@builtins = (
'abs',
'accept',
'alarm',
'atan2',
'bind',
'binmode',
'bless',
'break',
'caller',
'chdir',
'chmod',
'chomp',
'chop',
'chown',
'chr',
'chroot',
'close',
'closedir',
'connect',
'continue',
'cos',
'crypt',
'dbmclose',
'dbmopen',
# 'default',
'defined',
'delete',
'die',
'do',
'dump',
'each',
'endgrent',
'endhostent',
'endnetent',
'endprotoent',
'endpwent',
'endservent',
'eof',
'eval',
'evalbytes',
'exec',
'exists',
'exit',
'exp',
'fc',
'fcntl',
'fileno',
'flock',
'fork',
'format',
'formline',
'getc',
'getgrent',
'getgrgid',
'getgrnam',
'gethostbyaddr',
'gethostbyname',
'gethostent',
'getlogin',
'getnetbyaddr',
'getnetbyname',
'getnetent',
'getpeername',
'getpgrp',
'getppid',
'getpriority',
'getprotobyname',
'getprotobynumber',
'getprotoent',
'getpwent',
'getpwnam',
'getpwuid',
'getservbyname',
'getservbyport',
'getservent',
'getsockname',
'getsockopt',
# 'given',
'glob',
'gmtime',
'goto',
'grep',
'hex',
'import',
'index',
'int',
'ioctl',
'join',
'keys',
'kill',
'last',
'lc',
'lcfirst',
'length',
'link',
'listen',
'local',
'localtime',
'lock',
'log',
'lstat',
'map',
'mkdir',
'msgctl',
'msgget',
'msgrcv',
'msgsnd',
# 'my',
'next',
# 'no',
'oct',
'open',
'opendir',
'ord',
# 'our',
'pack',
'package',
'pipe',
'pop',
'pos',
'print',
'printf',
'prototype',
'push',
'quotemeta',
'rand',
'read',
'readdir',
'readline',
'readlink',
'readpipe',
'recv',
'redo',
'ref',
'rename',
'require',
'reset',
'return',
'reverse',
'rewinddir',
'rindex',
'rmdir',
'say',
'scalar',
'seek',
'seekdir',
'select',
'semctl',
'semget',
'semop',
'send',
'setgrent',
'sethostent',
'setnetent',
'setpgrp',
'setpriority',
'setprotoent',
'setpwent',
'setservent',
'setsockopt',
'shift',
'shmctl',
'shmget',
'shmread',
'shmwrite',
'shutdown',
'sin',
'sleep',
'socket',
'socketpair',
'sort',
'splice',
'split',
'sprintf',
'sqrt',
'srand',
'stat',
'state',
'study',
# 'sub',
'substr',
'symlink',
'syscall',
'sysopen',
'sysread',
'sysseek',
'system',
'syswrite',
'tell',
'telldir',
'tie',
'tied',
'time',
'times',
'truncate',
'uc',
'ucfirst',
'umask',
'undef',
'unlink',
'unpack',
'unshift',
'untie',
# 'use',
'utime',
'values',
'vec',
'wait',
'waitpid',
'wantarray',
'warn',
# 'when',
'write',
'-r', # File is readable by effective uid/gid.
'-w', # File is writable by effective uid/gid.
'-x', # File is executable by effective uid/gid.
'-o', # File is owned by effective uid.
'-R', # File is readable by real uid/gid.
'-W', # File is writable by real uid/gid.
'-X', # File is executable by real uid/gid.
'-O', # File is owned by real uid.
'-e', # File exists.
'-z', # File has zero size (is empty).
'-s', # File has nonzero size (returns size in bytes).
'-f', # File is a plain file.
'-d', # File is a directory.
'-l', # File is a symbolic link.
'-p', # File is a named pipe (FIFO), or Filehandle is a pipe.
'-S', # File is a socket.
'-b', # File is a block special file.
'-c', # File is a character special file.
'-t', # Filehandle is opened to a tty.
'-u', # File has setuid bit set.
'-g', # File has setgid bit set.
'-k', # File has sticky bit set.
'-T', # File is an ASCII text file (heuristic guess).
'-B', # File is a "binary" file (opposite of ?T).
'-M', # Script start time minus file modification time, in days.
'-A', # Same for access time.
'-C', # Same for inode change time (Unix, may differ for other platforms)
);
}
|
