[p5sagit/p5-mst-13.2.git] / lib / CPAN / HandleConfig.pm

package CPAN::Config;
use strict;
use vars qw($AUTOLOAD);

# formerly CPAN::HandleConfig was known as CPAN::Config
sub AUTOLOAD {
  my($l) = $AUTOLOAD;
  $CPAN::Frontend->mywarn("Dispatching deprecated method '$l' to CPAN::HandleConfig");
  $l =~ s/.*:://;
  CPAN::HandleConfig->$l(@_);
}

# note: J. Nick Koston wrote me that they are using
# CPAN::Config->commit although undocumented. I suggested
# CPAN::Shell->o("conf","commit") even when ugly it is at least
# documented

# that's why I added the CPAN::Config class with autoload and
# deprecated warning

package CPAN::HandleConfig;
use strict;
use vars qw(%can %keys $dot_cpan $VERSION);

$VERSION = sprintf "%.2f", substr(q$Rev: 337 $,4)/100;

%can = (
  'commit' => "Commit changes to disk",
  'defaults' => "Reload defaults from disk",
  'init'   => "Interactive setting of all options",
);

%keys = map { $_ => undef } qw(
    build_cache build_dir bzip2
    cache_metadata cpan_home curl
    dontload_hash
    ftp ftp_proxy
    getcwd gpg gzip
    histfile histsize http_proxy
    inactivity_timeout index_expire inhibit_startup_message
    keep_source_where
    lynx
    make make_arg make_install_arg make_install_make_command makepl_arg
    mbuild_arg mbuild_install_arg mbuild_install_build_command mbuildpl_arg
    ncftp ncftpget no_proxy pager
    prefer_installer prerequisites_policy
    scan_cache shell show_upload_date
    tar term_is_latin
    unzip urllist
    wait_list wget
);

# returns true on successful action
sub edit {
    my($self,@args) = @_;
    return unless @args;
    CPAN->debug("self[$self]args[".join(" | ",@args)."]");
    my($o,$str,$func,$args,$key_exists);
    $o = shift @args;
    if($can{$o}) {
	$self->$o(@args);
	return 1;
    } else {
        CPAN->debug("o[$o]") if $CPAN::DEBUG;
        unless (exists $keys{$o}) {
            $CPAN::Frontend->mywarn("Warning: unknown configuration variable '$o'\n");
        }
	if ($o =~ /list$/) {
	    $func = shift @args;
	    $func ||= "";
            CPAN->debug("func[$func]") if $CPAN::DEBUG;
            my $changed;
	    # Let's avoid eval, it's easier to comprehend without.
	    if ($func eq "push") {
		push @{$CPAN::Config->{$o}}, @args;
                $changed = 1;
	    } elsif ($func eq "pop") {
		pop @{$CPAN::Config->{$o}};
                $changed = 1;
	    } elsif ($func eq "shift") {
		shift @{$CPAN::Config->{$o}};
                $changed = 1;
	    } elsif ($func eq "unshift") {
		unshift @{$CPAN::Config->{$o}}, @args;
                $changed = 1;
	    } elsif ($func eq "splice") {
		splice @{$CPAN::Config->{$o}}, @args;
                $changed = 1;
	    } elsif (@args) {
		$CPAN::Config->{$o} = [@args];
                $changed = 1;
	    } else {
                $self->prettyprint($o);
	    }
            if ($o eq "urllist" && $changed) {
                # reset the cached values
                undef $CPAN::FTP::Thesite;
                undef $CPAN::FTP::Themethod;
            }
            return $changed;
	} else {
	    $CPAN::Config->{$o} = $args[0] if defined $args[0];
	    $self->prettyprint($o);
	}
    }
}

sub prettyprint {
  my($self,$k) = @_;
  my $v = $CPAN::Config->{$k};
  if (ref $v) {
    my(@report) = ref $v eq "ARRAY" ?
        @$v :
            map { sprintf("   %-18s => [%s]\n",
                          map { "[$_]" } $_,
                          defined $v->{$_} ? $v->{$_} : "UNDEFINED"
                         )} keys %$v;
    $CPAN::Frontend->myprint(
                             join(
                                  "",
                                  sprintf(
                                          "    %-18s\n",
                                          $k
                                         ),
                                  map {"\t[$_]\n"} @report
                                 )
                            );
  } elsif (defined $v) {
    $CPAN::Frontend->myprint(sprintf "    %-18s [%s]\n", $k, $v);
  } else {
    $CPAN::Frontend->myprint(sprintf "    %-18s [%s]\n", $k, "UNDEFINED");
  }
}

sub commit {
    my($self,$configpm) = @_;
    unless (defined $configpm){
	$configpm ||= $INC{"CPAN/MyConfig.pm"};
	$configpm ||= $INC{"CPAN/Config.pm"};
	$configpm || Carp::confess(q{
CPAN::Config::commit called without an argument.
Please specify a filename where to save the configuration or try
"o conf init" to have an interactive course through configing.
});
    }
    my($mode);
    if (-f $configpm) {
	$mode = (stat $configpm)[2];
	if ($mode && ! -w _) {
	    Carp::confess("$configpm is not writable");
	}
    }

    my $msg;
    $msg = <<EOF unless $configpm =~ /MyConfig/;

# This is CPAN.pm's systemwide configuration file. This file provides
# defaults for users, and the values can be changed in a per-user
# configuration file. The user-config file is being looked for as
# ~/.cpan/CPAN/MyConfig.pm.

EOF
    $msg ||= "\n";
    my($fh) = FileHandle->new;
    rename $configpm, "$configpm~" if -f $configpm;
    open $fh, ">$configpm" or
        $CPAN::Frontend->mydie("Couldn't open >$configpm: $!");
    $fh->print(qq[$msg\$CPAN::Config = \{\n]);
    foreach (sort keys %$CPAN::Config) {
	$fh->print(
		   "  '$_' => ",
		   ExtUtils::MakeMaker::neatvalue($CPAN::Config->{$_}),
		   ",\n"
		  );
    }

    $fh->print("};\n1;\n__END__\n");
    close $fh;

    #$mode = 0444 | ( $mode & 0111 ? 0111 : 0 );
    #chmod $mode, $configpm;
###why was that so?    $self->defaults;
    $CPAN::Frontend->myprint("commit: wrote $configpm\n");
    1;
}

*default = \&defaults;
sub defaults {
    my($self) = @_;
    $self->unload;
    $self->load;
    1;
}

sub init {
    my($self) = @_;
    undef $CPAN::Config->{'inhibit_startup_message'}; # lazy trick to
                                                      # have the least
                                                      # important
                                                      # variable
                                                      # undefined
    $self->load;
    1;
}

# This is a piece of repeated code that is abstracted here for
# maintainability.  RMB
#
sub _configpmtest {
    my($configpmdir, $configpmtest) = @_; 
    if (-w $configpmtest) {
        return $configpmtest;
    } elsif (-w $configpmdir) {
        #_#_# following code dumped core on me with 5.003_11, a.k.
        my $configpm_bak = "$configpmtest.bak";
        unlink $configpm_bak if -f $configpm_bak;
        if( -f $configpmtest ) {
            if( rename $configpmtest, $configpm_bak ) {
				$CPAN::Frontend->mywarn(<<END);
Old configuration file $configpmtest
    moved to $configpm_bak
END
	    }
	}
	my $fh = FileHandle->new;
	if ($fh->open(">$configpmtest")) {
	    $fh->print("1;\n");
	    return $configpmtest;
	} else {
	    # Should never happen
	    Carp::confess("Cannot open >$configpmtest");
	}
    } else { return }
}

sub load {
    my($self, %args) = @_;
	$CPAN::Be_Silent++ if $args{be_silent};

    my(@miss);
    use Carp;
    eval {require CPAN::Config;};       # We eval because of some
                                        # MakeMaker problems
    unless ($dot_cpan++){
      unshift @INC, File::Spec->catdir($ENV{HOME},".cpan");
      eval {require CPAN::MyConfig;};   # where you can override
                                        # system wide settings
      shift @INC;
    }
    return unless @miss = $self->missing_config_data;

    require CPAN::FirstTime;
    my($configpm,$fh,$redo,$theycalled);
    $redo ||= "";
    $theycalled++ if @miss==1 && $miss[0] eq 'inhibit_startup_message';
    if (defined $INC{"CPAN/Config.pm"} && -w $INC{"CPAN/Config.pm"}) {
	$configpm = $INC{"CPAN/Config.pm"};
	$redo++;
    } elsif (defined $INC{"CPAN/MyConfig.pm"} && -w $INC{"CPAN/MyConfig.pm"}) {
	$configpm = $INC{"CPAN/MyConfig.pm"};
	$redo++;
    } else {
	my($path_to_cpan) = File::Basename::dirname($INC{"CPAN.pm"});
	my($configpmdir) = File::Spec->catdir($path_to_cpan,"CPAN");
	my($configpmtest) = File::Spec->catfile($configpmdir,"Config.pm");
	if (-d $configpmdir or File::Path::mkpath($configpmdir)) {
	    $configpm = _configpmtest($configpmdir,$configpmtest); 
	}
	unless ($configpm) {
	    $configpmdir = File::Spec->catdir($ENV{HOME},".cpan","CPAN");
	    File::Path::mkpath($configpmdir);
	    $configpmtest = File::Spec->catfile($configpmdir,"MyConfig.pm");
	    $configpm = _configpmtest($configpmdir,$configpmtest); 
	    unless ($configpm) {
			my $text = qq{WARNING: CPAN.pm is unable to } .
			  qq{create a configuration file.}; 
			output($text, 'confess');
	    }
	}
    }
    local($") = ", ";
    $CPAN::Frontend->myprint(<<END) if $redo && ! $theycalled;
Sorry, we have to rerun the configuration dialog for CPAN.pm due to
the following indispensable but missing parameters:

@miss
END
    $CPAN::Frontend->myprint(qq{
$configpm initialized.
});

    sleep 2;
    CPAN::FirstTime::init($configpm, %args);
}

sub missing_config_data {
    my(@miss);
    for (
         "build_cache",
         "build_dir",
         "cache_metadata",
         "cpan_home",
         "ftp_proxy",
         "gzip",
         "http_proxy",
         "index_expire",
         "inhibit_startup_message",
         "keep_source_where",
         "make",
         "make_arg",
         "make_install_arg",
         "makepl_arg",
         "mbuild_arg",
         "mbuild_install_arg",
         "mbuild_install_build_command",
         "mbuildpl_arg",
         "no_proxy",
         "pager",
         "prerequisites_policy",
         "scan_cache",
         "tar",
         "unzip",
         "urllist",
        ) {
	push @miss, $_ unless defined $CPAN::Config->{$_};
    }
    return @miss;
}

sub unload {
    delete $INC{'CPAN/MyConfig.pm'};
    delete $INC{'CPAN/Config.pm'};
}

sub help {
    $CPAN::Frontend->myprint(q[
Known options:
  defaults  reload default config values from disk
  commit    commit session changes to disk
  init      go through a dialog to set all parameters

You may edit key values in the follow fashion (the "o" is a literal
letter o):

  o conf build_cache 15

  o conf build_dir "/foo/bar"

  o conf urllist shift

  o conf urllist unshift ftp://ftp.foo.bar/

]);
    undef; #don't reprint CPAN::Config
}

sub cpl {
    my($word,$line,$pos) = @_;
    $word ||= "";
    CPAN->debug("word[$word] line[$line] pos[$pos]") if $CPAN::DEBUG;
    my(@words) = split " ", substr($line,0,$pos+1);
    if (
	defined($words[2])
	and
	(
	 $words[2] =~ /list$/ && @words == 3
	 ||
	 $words[2] =~ /list$/ && @words == 4 && length($word)
	)
       ) {
	return grep /^\Q$word\E/, qw(splice shift unshift pop push);
    } elsif (@words >= 4) {
	return ();
    }
    my %seen;
    my(@o_conf) =  sort grep { !$seen{$_}++ }
        keys %can,
            keys %$CPAN::Config,
                keys %keys;
    return grep /^\Q$word\E/, @o_conf;
}

1;

__END__
# Local Variables:
# mode: cperl
# cperl-indent-level: 2
# End:
Commit	Line	Data
1a43333d	1	package CPAN::Config;
	2	use strict;
	3	use vars qw($AUTOLOAD);
	4
	5	# formerly CPAN::HandleConfig was known as CPAN::Config
	6	sub AUTOLOAD {
	7	my($l) = $AUTOLOAD;
	8	$CPAN::Frontend->mywarn("Dispatching deprecated method '$l' to CPAN::HandleConfig");
	9	$l =~ s/.*:://;
	10	CPAN::HandleConfig->$l(@_);
	11	}
	12
	13	# note: J. Nick Koston wrote me that they are using
	14	# CPAN::Config->commit although undocumented. I suggested
	15	# CPAN::Shell->o("conf","commit") even when ugly it is at least
	16	# documented
	17
	18	# that's why I added the CPAN::Config class with autoload and
	19	# deprecated warning
	20
e82b9348	21	package CPAN::HandleConfig;
e82b9348	22	use strict;
1a43333d	23	use vars qw(%can %keys $dot_cpan $VERSION);
	24
	25	$VERSION = sprintf "%.2f", substr(q$Rev: 337 $,4)/100;
e82b9348	26
	27	%can = (
	28	'commit' => "Commit changes to disk",
	29	'defaults' => "Reload defaults from disk",
	30	'init' => "Interactive setting of all options",
	31	);
	32
	33	%keys = map { $_ => undef } qw(
	34	build_cache build_dir bzip2
	35	cache_metadata cpan_home curl
	36	dontload_hash
	37	ftp ftp_proxy
	38	getcwd gpg gzip
	39	histfile histsize http_proxy
	40	inactivity_timeout index_expire inhibit_startup_message
	41	keep_source_where
	42	lynx
	43	make make_arg make_install_arg make_install_make_command makepl_arg
	44	mbuild_arg mbuild_install_arg mbuild_install_build_command mbuildpl_arg
	45	ncftp ncftpget no_proxy pager
	46	prefer_installer prerequisites_policy
	47	scan_cache shell show_upload_date
	48	tar term_is_latin
	49	unzip urllist
	50	wait_list wget
	51	);
	52
	53	# returns true on successful action
	54	sub edit {
	55	my($self,@args) = @_;
	56	return unless @args;
	57	CPAN->debug("self[$self]args[".join(" \| ",@args)."]");
	58	my($o,$str,$func,$args,$key_exists);
	59	$o = shift @args;
	60	if($can{$o}) {
	61	$self->$o(@args);
	62	return 1;
	63	} else {
	64	CPAN->debug("o[$o]") if $CPAN::DEBUG;
	65	unless (exists $keys{$o}) {
	66	$CPAN::Frontend->mywarn("Warning: unknown configuration variable '$o'\n");
	67	}
	68	if ($o =~ /list$/) {
	69	$func = shift @args;
	70	$func \|\|= "";
	71	CPAN->debug("func[$func]") if $CPAN::DEBUG;
	72	my $changed;
	73	# Let's avoid eval, it's easier to comprehend without.
	74	if ($func eq "push") {
	75	push @{$CPAN::Config->{$o}}, @args;
	76	$changed = 1;
	77	} elsif ($func eq "pop") {
	78	pop @{$CPAN::Config->{$o}};
	79	$changed = 1;
	80	} elsif ($func eq "shift") {
	81	shift @{$CPAN::Config->{$o}};
	82	$changed = 1;
	83	} elsif ($func eq "unshift") {
	84	unshift @{$CPAN::Config->{$o}}, @args;
	85	$changed = 1;
	86	} elsif ($func eq "splice") {
	87	splice @{$CPAN::Config->{$o}}, @args;
	88	$changed = 1;
	89	} elsif (@args) {
90	$CPAN::Config->{$o} = [@args];
91	$changed = 1;
92	} else {
93	$self->prettyprint($o);
94	}
95	if ($o eq "urllist" && $changed) {
96	# reset the cached values
97	undef $CPAN::FTP::Thesite;
98	undef $CPAN::FTP::Themethod;
99	}
100	return $changed;
101	} else {
102	$CPAN::Config->{$o} = $args[0] if defined $args[0];
103	$self->prettyprint($o);
104	}
105	}
106	}
107
108	sub prettyprint {
109	my($self,$k) = @_;
110	my $v = $CPAN::Config->{$k};
111	if (ref $v) {
112	my(@report) = ref $v eq "ARRAY" ?
113	@$v :
114	map { sprintf(" %-18s => [%s]\n",
115	map { "[$_]" } $_,
116	defined $v->{$_} ? $v->{$_} : "UNDEFINED"
117	)} keys %$v;
118	$CPAN::Frontend->myprint(
119	join(
120	"",
121	sprintf(
122	" %-18s\n",
123	$k
124	),
125	map {"\t[$_]\n"} @report
126	)
127	);
128	} elsif (defined $v) {
129	$CPAN::Frontend->myprint(sprintf " %-18s [%s]\n", $k, $v);
130	} else {
131	$CPAN::Frontend->myprint(sprintf " %-18s [%s]\n", $k, "UNDEFINED");
132	}
133	}
134
135	sub commit {
136	my($self,$configpm) = @_;
137	unless (defined $configpm){
138	$configpm \|\|= $INC{"CPAN/MyConfig.pm"};
139	$configpm \|\|= $INC{"CPAN/Config.pm"};
140	$configpm \|\| Carp::confess(q{
141	CPAN::Config::commit called without an argument.
142	Please specify a filename where to save the configuration or try
143	"o conf init" to have an interactive course through configing.
144	});
145	}
146	my($mode);
147	if (-f $configpm) {
148	$mode = (stat $configpm)[2];
149	if ($mode && ! -w _) {
150	Carp::confess("$configpm is not writable");
151	}
152	}
153
154	my $msg;
155	$msg = <<EOF unless $configpm =~ /MyConfig/;
156
157	# This is CPAN.pm's systemwide configuration file. This file provides
158	# defaults for users, and the values can be changed in a per-user
159	# configuration file. The user-config file is being looked for as
160	# ~/.cpan/CPAN/MyConfig.pm.
161
162	EOF
163	$msg \|\|= "\n";
164	my($fh) = FileHandle->new;
165	rename $configpm, "$configpm~" if -f $configpm;
166	open $fh, ">$configpm" or
167	$CPAN::Frontend->mydie("Couldn't open >$configpm: $!");
168	$fh->print(qq[$msg\$CPAN::Config = \{\n]);
169	foreach (sort keys %$CPAN::Config) {
170	$fh->print(
171	" '$_' => ",
172	ExtUtils::MakeMaker::neatvalue($CPAN::Config->{$_}),
173	",\n"
174	);
175	}
176
177	$fh->print("};\n1;\n__END__\n");
178	close $fh;
179
180	#$mode = 0444 \| ( $mode & 0111 ? 0111 : 0 );
181	#chmod $mode, $configpm;
182	###why was that so? $self->defaults;
183	$CPAN::Frontend->myprint("commit: wrote $configpm\n");
184	1;
185	}
186
187	*default = \&defaults;
188	sub defaults {
189	my($self) = @_;
190	$self->unload;
191	$self->load;
192	1;
193	}
194
195	sub init {
196	my($self) = @_;
197	undef $CPAN::Config->{'inhibit_startup_message'}; # lazy trick to
198	# have the least
199	# important
200	# variable
201	# undefined
202	$self->load;
203	1;
204	}
205
206	# This is a piece of repeated code that is abstracted here for
207	# maintainability. RMB
208	#
209	sub _configpmtest {
210	my($configpmdir, $configpmtest) = @_;
211	if (-w $configpmtest) {
212	return $configpmtest;
213	} elsif (-w $configpmdir) {
214	#_#_# following code dumped core on me with 5.003_11, a.k.
215	my $configpm_bak = "$configpmtest.bak";
216	unlink $configpm_bak if -f $configpm_bak;
217	if( -f $configpmtest ) {
218	if( rename $configpmtest, $configpm_bak ) {
219	$CPAN::Frontend->mywarn(<<END);
220	Old configuration file $configpmtest
221	moved to $configpm_bak
222	END
223	}
224	}
225	my $fh = FileHandle->new;
226	if ($fh->open(">$configpmtest")) {
227	$fh->print("1;\n");
228	return $configpmtest;
229	} else {
230	# Should never happen
231	Carp::confess("Cannot open >$configpmtest");
232	}
233	} else { return }
234	}
235
236	sub load {
237	my($self, %args) = @_;
238	$CPAN::Be_Silent++ if $args{be_silent};
239
240	my(@miss);
241	use Carp;
242	eval {require CPAN::Config;}; # We eval because of some
243	# MakeMaker problems
244	unless ($dot_cpan++){
245	unshift @INC, File::Spec->catdir($ENV{HOME},".cpan");
246	eval {require CPAN::MyConfig;}; # where you can override
247	# system wide settings
248	shift @INC;
249	}
250	return unless @miss = $self->missing_config_data;
251
252	require CPAN::FirstTime;
253	my($configpm,$fh,$redo,$theycalled);
254	$redo \|\|= "";
255	$theycalled++ if @miss==1 && $miss[0] eq 'inhibit_startup_message';
256	if (defined $INC{"CPAN/Config.pm"} && -w $INC{"CPAN/Config.pm"}) {
257	$configpm = $INC{"CPAN/Config.pm"};
258	$redo++;
259	} elsif (defined $INC{"CPAN/MyConfig.pm"} && -w $INC{"CPAN/MyConfig.pm"}) {
260	$configpm = $INC{"CPAN/MyConfig.pm"};
261	$redo++;
262	} else {
263	my($path_to_cpan) = File::Basename::dirname($INC{"CPAN.pm"});
264	my($configpmdir) = File::Spec->catdir($path_to_cpan,"CPAN");
265	my($configpmtest) = File::Spec->catfile($configpmdir,"Config.pm");
266	if (-d $configpmdir or File::Path::mkpath($configpmdir)) {
267	$configpm = _configpmtest($configpmdir,$configpmtest);
268	}
269	unless ($configpm) {
270	$configpmdir = File::Spec->catdir($ENV{HOME},".cpan","CPAN");
271	File::Path::mkpath($configpmdir);
272	$configpmtest = File::Spec->catfile($configpmdir,"MyConfig.pm");
273	$configpm = _configpmtest($configpmdir,$configpmtest);
274	unless ($configpm) {
275	my $text = qq{WARNING: CPAN.pm is unable to } .
276	qq{create a configuration file.};
277	output($text, 'confess');
278	}
279	}
280	}
281	local($") = ", ";
282	$CPAN::Frontend->myprint(<<END) if $redo && ! $theycalled;
0cf35e6a	283	Sorry, we have to rerun the configuration dialog for CPAN.pm due to
0cf35e6a	284	the following indispensable but missing parameters:
e82b9348	285
	286	@miss
	287	END
	288	$CPAN::Frontend->myprint(qq{
	289	$configpm initialized.
	290	});
	291
	292	sleep 2;
	293	CPAN::FirstTime::init($configpm, %args);
	294	}
	295
	296	sub missing_config_data {
	297	my(@miss);
	298	for (
0cf35e6a	299	"build_cache",
	300	"build_dir",
	301	"cache_metadata",
	302	"cpan_home",
	303	"ftp_proxy",
	304	"gzip",
	305	"http_proxy",
	306	"index_expire",
	307	"inhibit_startup_message",
	308	"keep_source_where",
	309	"make",
	310	"make_arg",
	311	"make_install_arg",
	312	"makepl_arg",
	313	"mbuild_arg",
	314	"mbuild_install_arg",
	315	"mbuild_install_build_command",
	316	"mbuildpl_arg",
	317	"no_proxy",
e82b9348	318	"pager",
e82b9348	319	"prerequisites_policy",
0cf35e6a	320	"scan_cache",
	321	"tar",
	322	"unzip",
	323	"urllist",
e82b9348	324	) {
	325	push @miss, $_ unless defined $CPAN::Config->{$_};
	326	}
	327	return @miss;
	328	}
	329
	330	sub unload {
	331	delete $INC{'CPAN/MyConfig.pm'};
	332	delete $INC{'CPAN/Config.pm'};
	333	}
	334
	335	sub help {
	336	$CPAN::Frontend->myprint(q[
	337	Known options:
	338	defaults reload default config values from disk
	339	commit commit session changes to disk
	340	init go through a dialog to set all parameters
	341
	342	You may edit key values in the follow fashion (the "o" is a literal
	343	letter o):
	344
	345	o conf build_cache 15
	346
	347	o conf build_dir "/foo/bar"
	348
	349	o conf urllist shift
	350
	351	o conf urllist unshift ftp://ftp.foo.bar/
	352
	353	]);
	354	undef; #don't reprint CPAN::Config
	355	}
	356
	357	sub cpl {
	358	my($word,$line,$pos) = @_;
	359	$word \|\|= "";
	360	CPAN->debug("word[$word] line[$line] pos[$pos]") if $CPAN::DEBUG;
	361	my(@words) = split " ", substr($line,0,$pos+1);
	362	if (
	363	defined($words[2])
	364	and
	365	(
	366	$words[2] =~ /list$/ && @words == 3
	367	\|\|
	368	$words[2] =~ /list$/ && @words == 4 && length($word)
	369	)
	370	) {
	371	return grep /^\Q$word\E/, qw(splice shift unshift pop push);
	372	} elsif (@words >= 4) {
	373	return ();
	374	}
	375	my %seen;
	376	my(@o_conf) = sort grep { !$seen{$_}++ }
	377	keys %can,
	378	keys %$CPAN::Config,
	379	keys %keys;
	380	return grep /^\Q$word\E/, @o_conf;
	381	}
	382
	383	1;
0cf35e6a	384
	385	__END__
	386	# Local Variables:
	387	# mode: cperl
	388	# cperl-indent-level: 2
	389	# End: