93 lines
2.3 KiB
Perl
93 lines
2.3 KiB
Perl
# -*- perl -*-
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use strict;
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use Config;
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use Cwd;
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use File::Spec::Functions;
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my %seen;
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sub print_modules_real {
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my ($base, $dir, $word) = @_;
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# return immediately if potential completion doesn't match current word
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# a double comparison is used to avoid dealing with string lengths
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# (the shorter being the pattern to be used as the regexp)
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# word 'Fi', base 'File' -> match 'File' against 'Fi'
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# word 'File::Sp', base 'File' -> match 'File::Sp' against 'File'
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return if
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$base &&
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$word &&
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$base !~ /^\Q$word/ &&
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$word !~ /^\Q$base/;
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chdir($dir) or return;
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# print each file
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foreach my $file (glob('*.pm')) {
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$file =~ s/\.pm$//;
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my $module = $base . $file;
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next if $module !~ /^\Q$word/;
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next if $seen{$module}++;
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print $module . "\n";
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}
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# recurse in each subdirectory
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foreach my $directory (grep { -d } glob('*')) {
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my $subdir = $dir . '/' . $directory;
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if ($directory =~ /^(?:[.\d]+|$Config{archname}|auto)$/) {
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# exclude subdirectory name from base
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print_modules_real(undef, $subdir, $word);
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} else {
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# add subdirectory name to base
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print_modules_real($base . $directory . '::', $subdir, $word);
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}
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}
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}
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sub print_modules {
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my ($word) = @_;
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my $origdir = getcwd;
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foreach my $directory (@INC) {
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print_modules_real(undef, $directory, $word);
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chdir $origdir;
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}
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}
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sub print_functions {
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my ($word) = @_;
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my $perlfunc;
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for ( @INC, undef ) {
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return if not defined;
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$perlfunc = catfile $_, qw( pod perlfunc.pod );
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last if -r $perlfunc;
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}
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open my $fh, '<', $perlfunc or return;
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my $nest_level = -1;
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while ( <$fh> ) {
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next if 1 .. /^=head2 Alphabetical Listing of Perl Functions$/;
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++$nest_level if /^=over/;
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--$nest_level if /^=back/;
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next if $nest_level;
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next unless /^=item (-?\w+)/;
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my $function = $1;
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next if $function !~ /^\Q$word/;
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next if $seen{$function}++;
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print $function . "\n";
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}
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}
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my $type = shift;
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my $word = shift;
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if ($type eq 'functions') {
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print_functions($word);
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} elsif ($type eq 'modules') {
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print_modules($word);
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}
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