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# Copyright (c) 1997-2020
# Ewgenij Gawrilow, Michael Joswig, and the polymake team
# Technische Universität Berlin, Germany
# https://polymake.org
#
# This program is free software; you can redistribute it and/or modify it
# under the terms of the GNU General Public License as published by the
# Free Software Foundation; either version 2, or (at your option) any
# later version: http://www.gnu.org/licenses/gpl.txt.
#
# 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. See the
# GNU General Public License for more details.
#-------------------------------------------------------------------------------
#
# This file is part of the polymake database interface polyDB.
#
# @author Silke Horn, Andreas Paffenholz
# http://www.mathematik.tu-darmstadt.de/~paffenholz
#
package Polymake::Core::Shell::Completion;
# completion of collection names
add Param( 'PolyDB::Collection',
sub {
my ($text, $ctx) = @_;
my $db = $ctx->obj;
my %options = (filter => '^' . ($text =~ s/\./\\./r) . '\\w+$', recursive => 0);
my @proposals = map { "$_." } $db->get_collection_names(undef, \%options);
if ($text =~ /\./) {
# partial input must be a section name;
# if there are no sections below this level, try collection names
if (!@proposals) {
$options{recursive}--;
@proposals = $db->get_collection_names(undef, \%options);
}
} else {
# either a top-level section name or an unambiguous collection name
$options{filter} =~ s/^\^/\\./;
$options{recursive}--;
my @collections = $db->get_collection_names(undef, \%options);
my (%in_sections, %in_default_section);
foreach my $coll_name (@collections) {
$coll_name =~ /\.(\w+)$/;
$in_sections{$1}++;
if (length($PolyDB::default::db_section_name) && index($`, $PolyDB::default::db_section_name) == 0) {
$in_default_section{$1}++;
}
}
push @proposals, (grep { $in_sections{$_} == 1 } keys %in_sections), (grep { $in_default_section{$_} == 1 } keys %in_default_section);
}
if ($proposals[0] =~ /\.$/) {
# got section names among proposals, can't close the string
$ctx->shell->completion_append_character = undef;
}
@proposals
},
flags => Param::Flags::quoted + Param::Flags::object);
# completion of property names in queries
add Param( 'PolyDB::query',
sub {
my ($text, $ctx) = @_;
if ($ctx->keyword) {
if ($ctx->group_keyword eq "sort_by") {
grep { /^$text/ } "1", "-1"
} elsif ($ctx->group_keyword eq "projection") {
grep { /^$text/ } "1", "0"
} else {
# no completion for query filter values
()
}
} else {
$ctx->obj->list_property_completions($text)
}
},
flags => Param::Flags::quoted + Param::Flags::object);
1;
# Local Variables:
# cperl-indent-level:3
# indent-tabs-mode:nil
# End:
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