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PK 9�[L�ze�6 �6 ReadLine.pmnu �[��� =head1 NAME Term::ReadLine - Perl interface to various C<readline> packages. If no real package is found, substitutes stubs instead of basic functions. =head1 SYNOPSIS use Term::ReadLine; my $term = Term::ReadLine->new('Simple Perl calc'); my $prompt = "Enter your arithmetic expression: "; my $OUT = $term->OUT || \*STDOUT; while ( defined ($_ = $term->readline($prompt)) ) { my $res = eval($_); warn $@ if $@; print $OUT $res, "\n" unless $@; $term->addhistory($_) if /\S/; } =head1 DESCRIPTION This package is just a front end to some other packages. It's a stub to set up a common interface to the various ReadLine implementations found on CPAN (under the C<Term::ReadLine::*> namespace). =head1 Minimal set of supported functions All the supported functions should be called as methods, i.e., either as $term = Term::ReadLine->new('name'); or as $term->addhistory('row'); where $term is a return value of Term::ReadLine-E<gt>new(). =over 12 =item C<ReadLine> returns the actual package that executes the commands. Among possible values are C<Term::ReadLine::Gnu>, C<Term::ReadLine::Perl>, C<Term::ReadLine::Stub>. =item C<new> returns the handle for subsequent calls to following functions. Argument is the name of the application. Optionally can be followed by two arguments for C<IN> and C<OUT> filehandles. These arguments should be globs. =item C<readline> gets an input line, I<possibly> with actual C<readline> support. Trailing newline is removed. Returns C<undef> on C<EOF>. =item C<addhistory> adds the line to the history of input, from where it can be used if the actual C<readline> is present. =item C<IN>, C<OUT> return the filehandles for input and output or C<undef> if C<readline> input and output cannot be used for Perl. =item C<MinLine> If argument is specified, it is an advice on minimal size of line to be included into history. C<undef> means do not include anything into history. Returns the old value. =item C<findConsole> returns an array with two strings that give most appropriate names for files for input and output using conventions C<"E<lt>$in">, C<"E<gt>out">. The strings returned may not be useful for 3-argument open(). =item Attribs returns a reference to a hash which describes internal configuration of the package. Names of keys in this hash conform to standard conventions with the leading C<rl_> stripped. =item C<Features> Returns a reference to a hash with keys being features present in current implementation. Several optional features are used in the minimal interface: C<appname> should be present if the first argument to C<new> is recognized, and C<minline> should be present if C<MinLine> method is not dummy. C<autohistory> should be present if lines are put into history automatically (maybe subject to C<MinLine>), and C<addhistory> if C<addhistory> method is not dummy. If C<Features> method reports a feature C<attribs> as present, the method C<Attribs> is not dummy. =back =head1 Additional supported functions Actually C<Term::ReadLine> can use some other package, that will support a richer set of commands. All these commands are callable via method interface and have names which conform to standard conventions with the leading C<rl_> stripped. The stub package included with the perl distribution allows some additional methods: =over 12 =item C<tkRunning> makes Tk event loop run when waiting for user input (i.e., during C<readline> method). =item C<event_loop> Registers call-backs to wait for user input (i.e., during C<readline> method). This supersedes tkRunning. The first call-back registered is the call back for waiting. It is expected that the callback will call the current event loop until there is something waiting to get on the input filehandle. The parameter passed in is the return value of the second call back. The second call-back registered is the call back for registration. The input filehandle (often STDIN, but not necessarily) will be passed in. For example, with AnyEvent: $term->event_loop(sub { my $data = shift; $data->[1] = AE::cv(); $data->[1]->recv(); }, sub { my $fh = shift; my $data = []; $data->[0] = AE::io($fh, 0, sub { $data->[1]->send() }); $data; }); The second call-back is optional if the call back is registered prior to the call to $term-E<gt>readline. Deregistration is done in this case by calling event_loop with C<undef> as its parameter: $term->event_loop(undef); This will cause the data array ref to be removed, allowing normal garbage collection to clean it up. With AnyEvent, that will cause $data->[0] to be cleaned up, and AnyEvent will automatically cancel the watcher at that time. If another loop requires more than that to clean up a file watcher, that will be up to the caller to handle. =item C<ornaments> makes the command line stand out by using termcap data. The argument to C<ornaments> should be 0, 1, or a string of a form C<"aa,bb,cc,dd">. Four components of this string should be names of I<terminal capacities>, first two will be issued to make the prompt standout, last two to make the input line standout. =item C<newTTY> takes two arguments which are input filehandle and output filehandle. Switches to use these filehandles. =back One can check whether the currently loaded ReadLine package supports these methods by checking for corresponding C<Features>. =head1 EXPORTS None =head1 ENVIRONMENT The environment variable C<PERL_RL> governs which ReadLine clone is loaded. If the value is false, a dummy interface is used. If the value is true, it should be tail of the name of the package to use, such as C<Perl> or C<Gnu>. As a special case, if the value of this variable is space-separated, the tail might be used to disable the ornaments by setting the tail to be C<o=0> or C<ornaments=0>. The head should be as described above, say If the variable is not set, or if the head of space-separated list is empty, the best available package is loaded. export "PERL_RL=Perl o=0" # Use Perl ReadLine sans ornaments export "PERL_RL= o=0" # Use best available ReadLine sans ornaments (Note that processing of C<PERL_RL> for ornaments is in the discretion of the particular used C<Term::ReadLine::*> package). =cut use strict; package Term::ReadLine::Stub; our @ISA = qw'Term::ReadLine::Tk Term::ReadLine::TermCap'; $DB::emacs = $DB::emacs; # To pacify -w our @rl_term_set; *rl_term_set = \@Term::ReadLine::TermCap::rl_term_set; sub PERL_UNICODE_STDIN () { 0x0001 } sub ReadLine {'Term::ReadLine::Stub'} sub readline { my $self = shift; my ($in,$out,$str) = @$self; my $prompt = shift; print $out $rl_term_set[0], $prompt, $rl_term_set[1], $rl_term_set[2]; $self->register_Tk if not $Term::ReadLine::registered and $Term::ReadLine::toloop; #$str = scalar <$in>; $str = $self->get_line; utf8::upgrade($str) if (${^UNICODE} & PERL_UNICODE_STDIN || defined ${^ENCODING}) && utf8::valid($str); print $out $rl_term_set[3]; # bug in 5.000: chomping empty string creates length -1: chomp $str if defined $str; $str; } sub addhistory {} # used for testing purpose sub devtty { return '/dev/tty' } sub findConsole { my $console; my $consoleOUT; my $devtty = devtty(); if ($^O ne 'MSWin32' and -e $devtty) { $console = $devtty; } elsif ($^O eq 'MSWin32' or $^O eq 'msys' or -e "con") { $console = 'CONIN$'; $consoleOUT = 'CONOUT$'; } elsif ($^O eq 'VMS') { $console = "sys\$command"; } elsif ($^O eq 'os2' && !$DB::emacs) { $console = "/dev/con"; } else { $console = undef; } $consoleOUT = $console unless defined $consoleOUT; $console = "&STDIN" unless defined $console; if ($console eq $devtty && !open(my $fh, "<", $console)) { $console = "&STDIN"; undef($consoleOUT); } if (!defined $consoleOUT) { $consoleOUT = defined fileno(STDERR) && $^O ne 'MSWin32' ? "&STDERR" : "&STDOUT"; } ($console,$consoleOUT); } sub new { die "method new called with wrong number of arguments" unless @_==2 or @_==4; #local (*FIN, *FOUT); my ($FIN, $FOUT, $ret); if (@_==2) { my($console, $consoleOUT) = $_[0]->findConsole; # the Windows CONIN$ needs GENERIC_WRITE mode to allow # a SetConsoleMode() if we end up using Term::ReadKey open FIN, (( $^O eq 'MSWin32' && $console eq 'CONIN$' ) ? '+<' : '<' ), $console; # RT #132008: Still need 2-arg open here open FOUT,">$consoleOUT"; #OUT->autoflush(1); # Conflicts with debugger? my $sel = select(FOUT); $| = 1; # for DB::OUT select($sel); $ret = bless [\*FIN, \*FOUT]; } else { # Filehandles supplied $FIN = $_[2]; $FOUT = $_[3]; #OUT->autoflush(1); # Conflicts with debugger? my $sel = select($FOUT); $| = 1; # for DB::OUT select($sel); $ret = bless [$FIN, $FOUT]; } if ($ret->Features->{ornaments} and not ($ENV{PERL_RL} and $ENV{PERL_RL} =~ /\bo\w*=0/)) { local $Term::ReadLine::termcap_nowarn = 1; $ret->ornaments(1); } return $ret; } sub newTTY { my ($self, $in, $out) = @_; $self->[0] = $in; $self->[1] = $out; my $sel = select($out); $| = 1; # for DB::OUT select($sel); } sub IN { shift->[0] } sub OUT { shift->[1] } sub MinLine { undef } sub Attribs { {} } my %features = (tkRunning => 1, ornaments => 1, 'newTTY' => 1); sub Features { \%features } #sub get_line { # my $self = shift; # my $in = $self->IN; # local ($/) = "\n"; # return scalar <$in>; #} package Term::ReadLine; # So late to allow the above code be defined? our $VERSION = '1.17'; my ($which) = exists $ENV{PERL_RL} ? split /\s+/, $ENV{PERL_RL} : undef; if ($which) { if ($which =~ /\bgnu\b/i){ eval "use Term::ReadLine::Gnu;"; } elsif ($which =~ /\bperl\b/i) { eval "use Term::ReadLine::Perl;"; } elsif ($which =~ /^(Stub|TermCap|Tk)$/) { # it is already in memory to avoid false exception as seen in: # PERL_RL=Stub perl -e'$SIG{__DIE__} = sub { print @_ }; require Term::ReadLine' } else { eval "use Term::ReadLine::$which;"; } } elsif (defined $which and $which ne '') { # Defined but false # Do nothing fancy } else { eval "use Term::ReadLine::Gnu; 1" or eval "use Term::ReadLine::EditLine; 1" or eval "use Term::ReadLine::Perl; 1"; } #require FileHandle; # To make possible switch off RL in debugger: (Not needed, work done # in debugger). our @ISA; if (defined &Term::ReadLine::Gnu::readline) { @ISA = qw(Term::ReadLine::Gnu Term::ReadLine::Stub); } elsif (defined &Term::ReadLine::EditLine::readline) { @ISA = qw(Term::ReadLine::EditLine Term::ReadLine::Stub); } elsif (defined &Term::ReadLine::Perl::readline) { @ISA = qw(Term::ReadLine::Perl Term::ReadLine::Stub); } elsif (defined $which && defined &{"Term::ReadLine::$which\::readline"}) { @ISA = "Term::ReadLine::$which"; } else { @ISA = qw(Term::ReadLine::Stub); } package Term::ReadLine::TermCap; # Prompt-start, prompt-end, command-line-start, command-line-end # -- zero-width beautifies to emit around prompt and the command line. our @rl_term_set = ("","","",""); # string encoded: our $rl_term_set = ',,,'; our $terminal; sub LoadTermCap { return if defined $terminal; require Term::Cap; $terminal = Tgetent Term::Cap ({OSPEED => 9600}); # Avoid warning. } sub ornaments { shift; return $rl_term_set unless @_; $rl_term_set = shift; $rl_term_set ||= ',,,'; $rl_term_set = 'us,ue,md,me' if $rl_term_set eq '1'; my @ts = split /,/, $rl_term_set, 4; eval { LoadTermCap }; unless (defined $terminal) { warn("Cannot find termcap: $@\n") unless $Term::ReadLine::termcap_nowarn; $rl_term_set = ',,,'; return; } @rl_term_set = map {$_ ? $terminal->Tputs($_,1) || '' : ''} @ts; return $rl_term_set; } package Term::ReadLine::Tk; # This package inserts a Tk->fileevent() before the diamond operator. # The Tk watcher dispatches Tk events until the filehandle returned by # the$term->IN() accessor becomes ready for reading. It's assumed # that the diamond operator will return a line of input immediately at # that point. my ($giveup); # maybe in the future the Tk-specific aspects will be removed. sub Tk_loop{ if (ref $Term::ReadLine::toloop) { $Term::ReadLine::toloop->[0]->($Term::ReadLine::toloop->[2]); } else { Tk::DoOneEvent(0) until $giveup; $giveup = 0; } }; sub register_Tk { my $self = shift; unless ($Term::ReadLine::registered++) { if (ref $Term::ReadLine::toloop) { $Term::ReadLine::toloop->[2] = $Term::ReadLine::toloop->[1]->($self->IN) if $Term::ReadLine::toloop->[1]; } else { Tk->fileevent($self->IN,'readable',sub { $giveup = 1}); } } }; sub tkRunning { $Term::ReadLine::toloop = $_[1] if @_ > 1; $Term::ReadLine::toloop; } sub event_loop { shift; # T::RL::Gnu and T::RL::Perl check that this exists, if not, # it doesn't call the loop. Those modules will need to be # fixed before this can be removed. if (not defined &Tk::DoOneEvent) { *Tk::DoOneEvent = sub { die "what?"; # this shouldn't be called. } } # store the callback in toloop, again so that other modules will # recognise it and call us for the loop. $Term::ReadLine::toloop = [ @_ ] if @_ > 0; # 0 because we shifted off $self. $Term::ReadLine::toloop; } sub PERL_UNICODE_STDIN () { 0x0001 } sub get_line { my $self = shift; my ($in,$out,$str) = @$self; if ($Term::ReadLine::toloop) { $self->register_Tk if not $Term::ReadLine::registered; $self->Tk_loop; } local ($/) = "\n"; $str = <$in>; utf8::upgrade($str) if (${^UNICODE} & PERL_UNICODE_STDIN || defined ${^ENCODING}) && utf8::valid($str); print $out $rl_term_set[3]; # bug in 5.000: chomping empty string creates length -1: chomp $str if defined $str; $str; } 1; PK 9�[�Q� � � Complete.pmnu �[��� package Term::Complete; require 5.000; require Exporter; use strict; our @ISA = qw(Exporter); our @EXPORT = qw(Complete); our $VERSION = '1.403'; # @(#)complete.pl,v1.2 (me@anywhere.EBay.Sun.COM) 09/23/91 =head1 NAME Term::Complete - Perl word completion module =head1 SYNOPSIS $input = Complete('prompt_string', \@completion_list); $input = Complete('prompt_string', @completion_list); =head1 DESCRIPTION This routine provides word completion on the list of words in the array (or array ref). The tty driver is put into raw mode and restored using an operating system specific command, in UNIX-like environments C<stty>. The following command characters are defined: =over 4 =item E<lt>tabE<gt> Attempts word completion. Cannot be changed. =item ^D Prints completion list. Defined by I<$Term::Complete::complete>. =item ^U Erases the current input. Defined by I<$Term::Complete::kill>. =item E<lt>delE<gt>, E<lt>bsE<gt> Erases one character. Defined by I<$Term::Complete::erase1> and I<$Term::Complete::erase2>. =back =head1 DIAGNOSTICS Bell sounds when word completion fails. =head1 BUGS The completion character E<lt>tabE<gt> cannot be changed. =head1 AUTHOR Wayne Thompson =cut our($complete, $kill, $erase1, $erase2, $tty_raw_noecho, $tty_restore, $stty, $tty_safe_restore); our($tty_saved_state) = ''; CONFIG: { $complete = "\004"; $kill = "\025"; $erase1 = "\177"; $erase2 = "\010"; foreach my $s (qw(/bin/stty /usr/bin/stty)) { if (-x $s) { $tty_raw_noecho = "$s raw -echo"; $tty_restore = "$s -raw echo"; $tty_safe_restore = $tty_restore; $stty = $s; last; } } } sub Complete { my($prompt, @cmp_lst, $cmp, $test, $l, @match); my ($return, $r) = ("", 0); $return = ""; $r = 0; $prompt = shift; if (ref $_[0] || $_[0] =~ /^\*/) { @cmp_lst = sort @{$_[0]}; } else { @cmp_lst = sort(@_); } # Attempt to save the current stty state, to be restored later if (defined $stty && defined $tty_saved_state && $tty_saved_state eq '') { $tty_saved_state = qx($stty -g 2>/dev/null); if ($?) { # stty -g not supported $tty_saved_state = undef; } else { $tty_saved_state =~ s/\s+$//g; $tty_restore = qq($stty "$tty_saved_state" 2>/dev/null); } } system $tty_raw_noecho if defined $tty_raw_noecho; LOOP: { local $_; print($prompt, $return); while (($_ = getc(STDIN)) ne "\r") { CASE: { # (TAB) attempt completion $_ eq "\t" && do { @match = grep(/^\Q$return/, @cmp_lst); unless ($#match < 0) { $l = length($test = shift(@match)); foreach $cmp (@match) { until (substr($cmp, 0, $l) eq substr($test, 0, $l)) { $l--; } } print("\a"); print($test = substr($test, $r, $l - $r)); $r = length($return .= $test); } last CASE; }; # (^D) completion list $_ eq $complete && do { print(join("\r\n", '', grep(/^\Q$return/, @cmp_lst)), "\r\n"); redo LOOP; }; # (^U) kill $_ eq $kill && do { if ($r) { $r = 0; $return = ""; print("\r\n"); redo LOOP; } last CASE; }; # (DEL) || (BS) erase ($_ eq $erase1 || $_ eq $erase2) && do { if($r) { print("\b \b"); chop($return); $r--; } last CASE; }; # printable char ord >= ord(" ") && do { $return .= $_; $r++; print; last CASE; }; } } } # system $tty_restore if defined $tty_restore; if (defined $tty_saved_state && defined $tty_restore && defined $tty_safe_restore) { system $tty_restore; if ($?) { # tty_restore caused error system $tty_safe_restore; } } print("\n"); $return; } 1; PK ��!\� �h : : ReadKey.pmnu �[��� # -*- buffer-read-only: t -*- # # This file is auto-generated. ***ANY*** changes here will be lost # package Term::ReadKey; use strict; use warnings; =head1 NAME Term::ReadKey - A perl module for simple terminal control =head1 SYNOPSIS use Term::ReadKey; ReadMode 4; # Turn off controls keys while (not defined ($key = ReadKey(-1))) { # No key yet } print "Get key $key\n"; ReadMode 0; # Reset tty mode before exiting =head1 DESCRIPTION Term::ReadKey is a compiled perl module dedicated to providing simple control over terminal driver modes (cbreak, raw, cooked, etc.,) support for non-blocking reads, if the architecture allows, and some generalized handy functions for working with terminals. One of the main goals is to have the functions as portable as possible, so you can just plug in "use Term::ReadKey" on any architecture and have a good likelihood of it working. Version 2.30.01: Added handling of arrows, page up/down, home/end, insert/delete keys under Win32. These keys emit xterm-compatible sequences. Works with Term::ReadLine::Perl. =over 4 =item ReadMode MODE [, Filehandle] Takes an integer argument or a string synonym (case insensitive), which can currently be one of the following values: INT SYNONYM DESCRIPTION 0 'restore' Restore original settings. 1 'normal' Change to what is commonly the default mode, echo on, buffered, signals enabled, Xon/Xoff possibly enabled, and 8-bit mode possibly disabled. 2 'noecho' Same as 1, just with echo off. Nice for reading passwords. 3 'cbreak' Echo off, unbuffered, signals enabled, Xon/Xoff possibly enabled, and 8-bit mode possibly enabled. 4 'raw' Echo off, unbuffered, signals disabled, Xon/Xoff disabled, and 8-bit mode possibly disabled. 5 'ultra-raw' Echo off, unbuffered, signals disabled, Xon/Xoff disabled, 8-bit mode enabled if parity permits, and CR to CR/LF translation turned off. These functions are automatically applied to the STDIN handle if no other handle is supplied. Modes 0 and 5 have some special properties worth mentioning: not only will mode 0 restore original settings, but it cause the next ReadMode call to save a new set of default settings. Mode 5 is similar to mode 4, except no CR/LF translation is performed, and if possible, parity will be disabled (only if not being used by the terminal, however. It is no different from mode 4 under Windows.) If you just need to read a key at a time, then modes 3 or 4 are probably sufficient. Mode 4 is a tad more flexible, but needs a bit more work to control. If you use ReadMode 3, then you should install a SIGINT or END handler to reset the terminal (via ReadMode 0) if the user aborts the program via C<^C>. (For any mode, an END handler consisting of "ReadMode 0" is actually a good idea.) If you are executing another program that may be changing the terminal mode, you will either want to say ReadMode 1; # same as ReadMode 'normal' system('someprogram'); ReadMode 1; which resets the settings after the program has run, or: $somemode=1; ReadMode 0; # same as ReadMode 'restore' system('someprogram'); ReadMode 1; which records any changes the program may have made, before resetting the mode. =item ReadKey MODE [, Filehandle] Takes an integer argument, which can currently be one of the following values: 0 Perform a normal read using getc -1 Perform a non-blocked read >0 Perform a timed read If the filehandle is not supplied, it will default to STDIN. If there is nothing waiting in the buffer during a non-blocked read, then undef will be returned. In most situations, you will probably want to use C<ReadKey -1>. I<NOTE> that if the OS does not provide any known mechanism for non-blocking reads, then a C<ReadKey -1> can die with a fatal error. This will hopefully not be common. If MODE is greater then zero, then ReadKey will use it as a timeout value in seconds (fractional seconds are allowed), and won't return C<undef> until that time expires. I<NOTE>, again, that some OS's may not support this timeout behaviour. If MODE is less then zero, then this is treated as a timeout of zero, and thus will return immediately if no character is waiting. A MODE of zero, however, will act like a normal getc. I<NOTE>, there are currently some limitations with this call under Windows. It may be possible that non-blocking reads will fail when reading repeating keys from more then one console. =item ReadLine MODE [, Filehandle] Takes an integer argument, which can currently be one of the following values: 0 Perform a normal read using scalar(<FileHandle>) -1 Perform a non-blocked read >0 Perform a timed read If there is nothing waiting in the buffer during a non-blocked read, then undef will be returned. I<NOTE>, that if the OS does not provide any known mechanism for non-blocking reads, then a C<ReadLine 1> can die with a fatal error. This will hopefully not be common. I<NOTE> that a non-blocking test is only performed for the first character in the line, not the entire line. This call will probably B<not> do what you assume, especially with C<ReadMode> MODE values higher then 1. For example, pressing Space and then Backspace would appear to leave you where you started, but any timeouts would now be suspended. B<This call is currently not available under Windows>. =item GetTerminalSize [Filehandle] Returns either an empty array if this operation is unsupported, or a four element array containing: the width of the terminal in characters, the height of the terminal in character, the width in pixels, and the height in pixels. (The pixel size will only be valid in some environments.) I<NOTE>, under Windows, this function must be called with an B<output> filehandle, such as C<STDOUT>, or a handle opened to C<CONOUT$>. =item SetTerminalSize WIDTH,HEIGHT,XPIX,YPIX [, Filehandle] Return -1 on failure, 0 otherwise. I<NOTE> that this terminal size is only for B<informative> value, and changing the size via this mechanism will B<not> change the size of the screen. For example, XTerm uses a call like this when it resizes the screen. If any of the new measurements vary from the old, the OS will probably send a SIGWINCH signal to anything reading that tty or pty. B<This call does not work under Windows>. =item GetSpeed [, Filehandle] Returns either an empty array if the operation is unsupported, or a two value array containing the terminal in and out speeds, in B<decimal>. E.g, an in speed of 9600 baud and an out speed of 4800 baud would be returned as (9600,4800). Note that currently the in and out speeds will always be identical in some OS's. B<No speeds are reported under Windows>. =item GetControlChars [, Filehandle] Returns an array containing key/value pairs suitable for a hash. The pairs consist of a key, the name of the control character/signal, and the value of that character, as a single character. B<This call does nothing under Windows>. Each key will be an entry from the following list: DISCARD DSUSPEND EOF EOL EOL2 ERASE ERASEWORD INTERRUPT KILL MIN QUIT QUOTENEXT REPRINT START STATUS STOP SUSPEND SWITCH TIME Thus, the following will always return the current interrupt character, regardless of platform. %keys = GetControlChars; $int = $keys{INTERRUPT}; =item SetControlChars [, Filehandle] Takes an array containing key/value pairs, as a hash will produce. The pairs should consist of a key that is the name of a legal control character/signal, and the value should be either a single character, or a number in the range 0-255. SetControlChars will die with a runtime error if an invalid character name is passed or there is an error changing the settings. The list of valid names is easily available via %cchars = GetControlChars(); @cnames = keys %cchars; B<This call does nothing under Windows>. =back =head1 AUTHOR Kenneth Albanowski <kjahds@kjahds.com> Currently maintained by Jonathan Stowe <jns@gellyfish.co.uk> =head1 SUPPORT The code is maintained at https://github.com/jonathanstowe/TermReadKey Please feel free to fork and suggest patches. =head1 LICENSE Prior to the 2.31 release the license statement was: Copyright (C) 1994-1999 Kenneth Albanowski. 2001-2005 Jonathan Stowe and others Unlimited distribution and/or modification is allowed as long as this copyright notice remains intact. And was only stated in the README file. Because I believe the original author's intent was to be more open than the other commonly used licenses I would like to leave that in place. However if you or your lawyers require something with some more words you can optionally choose to license this under the standard Perl license: This module is free software; you can redistribute it and/or modify it under the terms of the Artistic License. For details, see the full text of the license in the file "Artistic" that should have been provided with the version of perl you are using. This program is distributed in the hope that it will be useful, but without any warranty; without even the implied warranty of merchantability or fitness for a particular purpose. =cut use vars qw($VERSION); $VERSION = '2.38'; require Exporter; require DynaLoader; use vars qw(@ISA @EXPORT_OK @EXPORT); @ISA = qw(Exporter DynaLoader); # Items to export into callers namespace by default # (move infrequently used names to @EXPORT_OK below) @EXPORT = qw( ReadKey ReadMode ReadLine GetTerminalSize SetTerminalSize GetSpeed GetControlChars SetControlChars ); @EXPORT_OK = qw(); bootstrap Term::ReadKey; # Should we use LINES and COLUMNS to try and get the terminal size? # Change this to zero if you have systems where these are commonly # set to erroneous values. (But if either are near zero, they won't be # used anyhow.) use vars qw($UseEnv $CurrentMode %modes); $UseEnv = 1; $CurrentMode = 0; %modes = ( # lowercase is canonical original => 0, restore => 0, normal => 1, noecho => 2, cbreak => 3, raw => 4, 'ultra-raw' => 5 ); # reduce Carp memory footprint, only load when needed sub croak { require Carp; goto &Carp::croak; } sub carp { require Carp; goto &Carp::carp; } sub ReadMode { my $mode = $modes{ lc $_[0] }; # lowercase is canonical my $fh = normalizehandle( ( @_ > 1 ? $_[1] : \*STDIN ) ); if ( defined($mode) ) { $CurrentMode = $mode } elsif ( $_[0] =~ /^\d/ ) { $CurrentMode = $_[0] } else { croak("Unknown terminal mode `$_[0]'"); } SetReadMode($CurrentMode, $fh); } sub normalizehandle { my ($file) = @_; # allows fake signature optimization no strict; # print "Handle = $file\n"; if ( ref($file) ) { return $file; } # Reference is fine # if ($file =~ /^\*/) { return $file; } # Type glob is good if ( ref( \$file ) eq 'GLOB' ) { return $file; } # Glob is good # print "Caller = ",(caller(1))[0],"\n"; return \*{ ( ( caller(1) )[0] ) . "::$file" }; } sub GetTerminalSize { my $file = normalizehandle( ( @_ > 0 ? $_[0] : \*STDOUT ) ); my (@results, @fail); if ( &termsizeoptions() & 1 ) # VIO { @results = GetTermSizeVIO($file); push( @fail, "VIOGetMode call" ); } elsif ( &termsizeoptions() & 2 ) # GWINSZ { @results = GetTermSizeGWINSZ($file); push( @fail, "TIOCGWINSZ ioctl" ); } elsif ( &termsizeoptions() & 4 ) # GSIZE { @results = GetTermSizeGSIZE($file); push( @fail, "TIOCGSIZE ioctl" ); } elsif ( &termsizeoptions() & 8 ) # WIN32 { @results = GetTermSizeWin32($file); push( @fail, "Win32 GetConsoleScreenBufferInfo call" ); } else { @results = (); } if ( @results < 4 and $UseEnv ) { my ($C) = defined( $ENV{COLUMNS} ) ? $ENV{COLUMNS} : 0; my ($L) = defined( $ENV{LINES} ) ? $ENV{LINES} : 0; if ( ( $C >= 2 ) and ( $L >= 2 ) ) { @results = ( $C + 0, $L + 0, 0, 0 ); } push( @fail, "COLUMNS and LINES environment variables" ); } if ( @results < 4 && $^O ne 'MSWin32') { my ($prog) = "resize"; # Workaround for Solaris path silliness if ( -f "/usr/openwin/bin/resize" ) { $prog = "/usr/openwin/bin/resize"; } my ($resize) = scalar(`$prog 2>/dev/null`); if (defined $resize and ( $resize =~ /COLUMNS\s*=\s*(\d+)/ or $resize =~ /setenv\s+COLUMNS\s+'?(\d+)/ ) ) { $results[0] = $1; if ( $resize =~ /LINES\s*=\s*(\d+)/ or $resize =~ /setenv\s+LINES\s+'?(\d+)/ ) { $results[1] = $1; @results[ 2, 3 ] = ( 0, 0 ); } else { @results = (); } } else { @results = (); } push( @fail, "resize program" ); } if ( @results < 4 && $^O ne 'MSWin32' ) { my ($prog) = "stty size"; my ($stty) = scalar(`$prog 2>/dev/null`); if (defined $stty and ( $stty =~ /(\d+) (\d+)/ ) ) { $results[0] = $2; $results[1] = $1; @results[ 2, 3 ] = ( 0, 0 ); } else { @results = (); } push( @fail, "stty program" ); } if ( @results != 4 ) { carp("Unable to get Terminal Size." . join( "", map( " The $_ didn't work.", @fail ) )); return undef; } @results; } # blockoptions: #nodelay #select sub ReadKey { my $File = normalizehandle((@_>1?$_[1]:\*STDIN)); if (defined $_[0] && $_[0] > 0) { if ($_[0]) { return undef if &selectfile($File,$_[0]) == 0 } } if (defined $_[0] && $_[0] < 0) { &setnodelay($File,1); } my $value = getc $File; if (defined $_[0] && $_[0] < 0) { &setnodelay($File,0); } $value; } sub ReadLine { my $File = normalizehandle((@_>1?$_[1]:\*STDIN)); if (defined $_[0] && $_[0] > 0) { if ($_[0]) { return undef if &selectfile($File,$_[0]) == 0 } } if (defined $_[0] && $_[0] < 0) { &setnodelay($File,1) }; my $value = scalar(<$File>); if (defined $_[0] && $_[0] < 0) { &setnodelay($File,0) }; $value; } 1; # ex: set ro: PK 9�[L�ze�6 �6 ReadLine.pmnu �[��� PK 9�[�Q� � � 7 Complete.pmnu �[��� PK ��!\� �h : : I ReadKey.pmnu �[��� PK � W�
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