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Search.pm
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# Vend::Search - Base class for search engines
#
# $Id: Search.pm,v 2.38 2008-07-07 18:15:07 docelic Exp $
#
# Copyright (C) 2002-2008 Interchange Development Group
# Copyright (C) 1996-2002 Red Hat, Inc.
#
# 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 of the License, or
# (at your option) any later version.
#
# 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.
#
# You should have received a copy of the GNU General Public
# License along with this program; if not, write to the Free
# Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston,
# MA 02110-1301 USA.
package Vend::Search;
$VERSION = substr(q$Revision: 2.38 $, 10);
use strict;
no warnings qw(uninitialized numeric);
use POSIX qw(LC_CTYPE);
use vars qw($VERSION);
sub new {
my $class = shift;
my $s = {@_};
bless $s, $class;
return $s;
}
sub get_scalar {
my $s = shift;
my @out;
for (@_) {
push @out, (ref $s->{$_} ? $s->{$_}[0] : $_[0] || '');
}
return @out;
}
sub version {
$Vend::Search::VERSION;
}
my %maytag = (
mv_return_fields => sub {
my $s = shift;
my $i;
while (defined ($i = shift)) {
next if $s->{mv_return_fields}[$i] =~ /^\d+$/;
$s->{mv_return_fields}[$i] = 255;
}
},
mv_range_look => sub { undef shift->{range_look} },
mv_sort_field => sub {
my $s = shift;
my $i;
while (defined ($i = shift)) {
#::logDebug("checking sort field $s->{mv_sort_field}[$i]");
# Assume they know what they are doing
next if $s->{mv_sort_field}[$i] =~ /^\d+$/;
if ($s->{mv_sort_field}[$i] =~ s/:([frn]+)$//) {
$s->{mv_sort_option}[$i] = $1;
}
if(! defined $s->{field_hash}{$s->{mv_sort_field}[$i]})
{
splice(@{$s->{mv_sort_field}}, $i, 1);
splice(@{$s->{mv_sort_option}}, $i, 1);
}
else {
$s->{mv_sort_field}[$i] =
$s->{field_hash}{$s->{mv_sort_field}[$i]};
}
}
},
mv_search_field => sub {
my $s = shift;
my $i;
while (defined ($i = shift)) {
# Assume they know what they are doing
next if $s->{mv_search_field}[$i] =~ /^\d+$/;
next if $s->{mv_search_field}[$i] =~ /[*:]/;
$s->splice_specs($i);
}
},
);
my (@hashable) = (qw/mv_return_fields mv_range_look mv_search_field mv_sort_field/);
sub search_reference {
my ($s, $ref) = @_;
my $c = { mv_searchtype => 'ref', label => ref($s), mv_search_file => '__none__' };
my $ns = $s->{mv_next_search};
$ns = $::Scratch->{$ns} unless $ns =~ /=/;
my $params = Vend::Interpolate::escape_scan($ns);
#::logDebug("search_params: $params");
Vend::Scan::find_search_params($c, $params);
$c->{mv_return_filtered} = 1;
$c->{mv_return_fields} = '*';
$c->{mv_field_names} = $s->{mv_field_names};
$c->{mv_search_reference} = $ref;
#::logDebug("Ref ready to search: " . ::uneval($c));
my $o = Vend::Scan::perform_search($c);
return @{$o->{mv_results} || []};
}
sub hash_fields {
my ($s, $fn, @laundry) = @_;
my %fh;
my $idx = 0;
for (@$fn) {
$fh{$_} = $idx++;
}
$s->{field_hash} = \%fh;
my $fa;
my %wash;
@laundry = @hashable if ! @laundry;
#::logDebug("washing laundry @laundry");
foreach $fa (@laundry) {
next unless defined $s->{$fa};
my $i = 0;
for( @{$s->{$fa}} ) {
if(! defined $fh{$_}) {
if($_ eq '*') {
$idx--;
@{$s->{$fa}} = (0 .. $idx);
last;
}
$wash{$fa} = [] if ! defined $wash{$fa};
push @{$wash{$fa}}, $i++;
next;
}
$_ = $fh{$_};
$i++;
}
}
$s->{mv_field_names} = [@$fn] if ! defined $s->{mv_field_names};
foreach $fa (keys %wash) {
#::logDebug("washing $fa:" . ::uneval($wash{$fa}) );
$maytag{$fa}->($s, reverse @{$wash{$fa}});
}
}
sub escape {
my($s, @text) = @_;
#::logDebug( "unescaped text=" . ::uneval(\@text));
return @text if ! $s->{mv_all_chars}[0];
@text = map {quotemeta $_} @text;
#::logDebug( "escaped text=" . ::uneval(\@text));
return @text;
}
my (@splice) = qw(
mv_all_chars
mv_begin_string
mv_case
mv_negate
mv_numeric
mv_orsearch
mv_search_group
mv_search_field
mv_searchspec
mv_substring_match
);
sub save_specs {
my $s = shift;
return if defined $s->{save_specs};
return if @{$s->{mv_search_file}} < 2;
my $ary = [];
for (@splice) {
#::logDebug("saving $_:" . ::uneval($s->{$_}));
push @$ary, defined $s->{$_} ? [ @{$s->{$_}} ] : undef;
}
$s->{save_specs} = $ary;
return;
}
sub restore_specs {
my $s = shift;
return if ! defined $s->{save_specs};
my $ary = $s->{save_specs};
my $i;
for ($i = 0; $i < @splice; $i++) {
my $val = $ary->[$i];
#::logDebug("restoring $splice[$i] from $_:" . ::uneval( $s->{$splice[$i]} ));
$s->{$splice[$i]} = $val ? [ @{$val} ] : undef;
#::logDebug("restoring $splice[$i] to $_:" . ::uneval( $val ));
}
return;
}
sub splice_specs {
my ($s, $i) = @_;
for (@splice) {
splice(@{$s->{$_}}, $i, 1);
}
return;
}
sub dump_coord {
my $s = shift;
my $specs = shift;
my $msg = shift;
return
sprintf "%s coord=%s specs=%s(%s) fields=%s(%s) op=%s(%s) nu=%s(%s) ne=%s(%s)",
$msg,
$s->{mv_coordinate},
scalar @$specs,
Vend::Util::uneval($specs),
scalar @{$s->{mv_search_field}},
Vend::Util::uneval($s->{mv_search_field}),
scalar @{$s->{mv_column_op}},
Vend::Util::uneval($s->{mv_column_op}),
scalar @{$s->{mv_numeric}},
Vend::Util::uneval($s->{mv_numeric}),
scalar @{$s->{mv_negate}},
Vend::Util::uneval($s->{mv_negate}),
;
}
sub spec_check {
my ($s, @specs) = @_;
my @pats;
SPEC_CHECK: {
last SPEC_CHECK if $s->{mv_return_all};
# Patch supplied by Don Grodecki
# Now ignores empty search strings if coordinated search
my $i = 0;
#::logDebug($s->dump_coord(\@specs, 'BEFORE'));
if ( $s->{mv_force_coordinate} ) {
# If coordinated search is forced, ensure
# @specs == @{$s->{mv_search_field}}:
if ( $s->{mv_coordinate} ) {
my $last = $#{$s->{mv_search_field}};
my $i;
for ($i = @specs; $i <= $last; $i++) {
$specs[$i] = $specs[$#specs];
}
$#specs = $last;
}
}
else {
$s->{mv_coordinate} = ''
unless $s->{mv_coordinate} and @specs == @{$s->{mv_search_field}};
}
my $all_chars = $s->{mv_all_chars}[0];
while ($i < @specs) {
#::logDebug("i=$i specs=$#specs mv_min_string=$s->{mv_min_string}");
if($#specs and length($specs[$i]) == 0 and $s->{mv_min_string} != 0) { # should add a switch
if($s->{mv_coordinate}) {
splice(@{$s->{mv_search_group}}, $i, 1);
splice(@{$s->{mv_search_field}}, $i, 1);
splice(@{$s->{mv_column_op}}, $i, 1);
splice(@{$s->{mv_begin_string}}, $i, 1);
splice(@{$s->{mv_case}}, $i, 1);
splice(@{$s->{mv_numeric}}, $i, 1);
splice(@{$s->{mv_all_chars}}, $i, 1);
splice(@{$s->{mv_substring_match}}, $i, 1);
splice(@{$s->{mv_negate}}, $i, 1);
}
splice(@specs, $i, 1);
}
else {
COLOP: {
last COLOP unless $s->{mv_coordinate};
#::logDebug("i=$i, begin_string=$s->{mv_begin_string}[$i]");
$s->{mv_all_chars}[$i] = $all_chars
if ! defined $s->{mv_all_chars}[$i];
last COLOP if $s->{mv_search_relate} =~ s/\bor\b/or/ig;
if( $s->{mv_column_op}[$i] =~ /([=][~]|rm|em)/ ) {
$specs[$i] = quotemeta $specs[$i]
if $s->{mv_all_chars}[$i];
last COLOP if $s->{mv_begin_string}[$i];
last COLOP if $s->{mv_column_op}[$i] eq 'em';
$s->{regex_specs} ||= [];
$specs[$i] =~ /(.*)/;
push @{$s->{regex_specs}}, $1
}
elsif( $s->{mv_column_op}[$i] =~ /^(==?|eq)$/ ) {
$s->{eq_specs} = []
unless $s->{eq_specs};
$specs[$i] =~ /(.*)/;
my $spec = $1;
push @{$s->{eq_specs}}, $spec;
last COLOP unless $s->{dbref};
$spec = $s->{dbref}->quote($spec, $s->{mv_search_field}[$i]);
$spec = $s->{mv_search_field}[$i] . " = $spec";
push(@{$s->{eq_specs_sql}}, $spec);
}
}
$i++;
}
}
# If this is an or search and we don't have sql specs for *all* the
# specs then dump them alltogether otherwise we end up pre-emptively
# removing rows that may need to be in the results.
if (
$s->{mv_orsearch} &&
$s->{eq_specs_sql} &&
@{$s->{eq_specs_sql}} &&
@{$s->{eq_specs_sql}} < @specs
) {
delete $s->{eq_specs_sql};
}
#::logDebug("regex_specs=" . ::uneval($s->{regex_specs}));
#::logDebug("eq_specs_sql=" . ::uneval($s->{eq_specs_sql}));
if ( ! $s->{mv_exact_match} and ! $s->{mv_coordinate}) {
my $string = join ' ', @specs;
eval {
@specs = Text::ParseWords::shellwords( $string );
};
if($@ or ! @specs) {
$string =~ s/['"]/./g;
$s->{mv_all_chars}[0] = 0;
@specs = Text::ParseWords::shellwords( $string );
}
}
@specs = $s->escape(@specs) if ! $s->{mv_coordinate};
if(! scalar @specs or ! $s->{mv_coordinate}) {
my $passed;
my $msg;
for (@specs) {
$passed = 1;
next if length($_) >= $s->{mv_min_string};
$msg = ::errmsg(q{Search strings must be at least %s characters. You had '%s' as one of your search strings.}, $s->{mv_min_string}, $_);
undef $passed;
last;
}
$passed = 1 if ! $s->{mv_min_string};
if(! defined $passed) {
$msg = ::errmsg(q{Search strings must be at least %s characters. You had no search string specified.}, $s->{mv_min_string}) if ! $msg;
return $s->search_error($msg);
}
}
# untaint
for(@specs) {
/(.*)/s;
push @pats, $1;
}
$s->{mv_searchspec} = \@pats;
#::logDebug($s->dump_coord(\@specs, 'AFTER '));
return @pats;
} # last SPEC_CHECK
return @pats;
}
sub more_matches {
my($s) = @_;
$s->{more_in_progress} = 1;
my $id;
if($s->{mv_more_permanent}) {
#::logDebug("Permanent more");
$id = $s->{mv_cache_key};
}
else {
$id = $s->{mv_more_id} || $s->{mv_session_id};
$id .= ".$s->{mv_cache_key}";
}
my $file;
my $obj;
eval {
if($Vend::Cfg->{MoreDB}) {
#::logDebug("more_matches: $id from $Vend::Cfg->{SessionDB}");
eval {
my $db = Vend::Util::dbref($Vend::Cfg->{SessionDB});
$obj = Vend::Util::evalr( $db->field($id,'session') );
};
$@ and return $s->search_error(
"Object saved wrong in session DB for search ID %s.",
$id,
);
}
else {
if($s->{mv_more_permanent}) {
$file = Vend::File::get_filename($id, 2, 1, $Vend::Cfg->{PermanentDir});
}
else {
$file = Vend::File::get_filename($id);
}
#::logDebug("more_matches: $id from $file");
eval {
$obj = Vend::Util::eval_file($file);
};
$@ and return $s->search_error(
"Object saved wrong in %s for search ID %s.",
$file,
$id,
);
}
};
for(qw/mv_cache_key mv_matchlimit /) {
$obj->{$_} = $s->{$_};
}
if($obj->{matches} > ($s->{mv_last_pointer} + 1) ) {
$obj->{mv_next_pointer} = $s->{mv_last_pointer} + 1;
}
else {
$obj->{mv_next_pointer} = 0;
}
$obj->{mv_first_match} = $s->{mv_next_pointer};
$obj->{more_in_progress} = 1;
#::logDebug("object:" . ::uneval($obj));
return $obj;
}
sub more_alpha {
my ($s, $out) = @_;
my ($sfpos, @letters, @compare, $changed, @pos, $sortkey, $last, @alphaspecs, $i, $l);
my $alphachars = $s->{mv_more_alpha_chars} || 3;
# determine position of sort field within results
for ($i = 0; $i < @{$s->{mv_return_fields}}; $i++) {
last if $s->{mv_return_fields}->[$i] eq $s->{mv_sort_field}->[0];
}
$sfpos = $i;
# add dummy record
@alphaspecs = (['']);
$last = 0;
for ($i = 0; $i < @$out; $i++) {
$sortkey = $out->[$i]->[$sfpos];
@letters = split(m{}, $sortkey, $alphachars + 1);
pop(@letters);
$changed = 0;
for ($l = 0; $l < $alphachars; $l++) {
if ($letters[$l] ne $compare[$l]) {
$changed = 1;
}
next unless $changed;
$pos[$l] = $i;
$compare[$l] = $letters[$l];
}
if ($pos[0] == $i) {
# add record if first letter has changed
push (@alphaspecs, [$sortkey, 1, $i]);
# add last pointer to previous record
push (@{$alphaspecs[$last++]}, $i - 1);
} elsif ($alphachars > 1
&& $i - $alphaspecs[$last]->[2] >= $s->{mv_matchlimit}) {
# add record if match limit is exceeded and significant
# letters are different
for (my $c = 2; $c <= $alphachars; $c++) {
if (substr($sortkey, 0, $c)
ne substr($alphaspecs[$last]->[0],0,$c)) {
push (@alphaspecs, [$sortkey, $c, $pos[$c - 1]]);
# add last pointer to previous record
push (@{$alphaspecs[$last++]}, $pos[$c - 1] - 1);
last;
}
}
}
}
# add last pointer to last record
push (@{$alphaspecs[$last]}, $i - 1);
# remove dummy record
shift (@alphaspecs);
$s->{mv_alpha_list} = \@alphaspecs;
}
# Returns a field weeding function based on the search specification.
# Input is the raw line and the delimiter, output is the fields
# specified in the return_field specification
# If we get a third parameter, $makeref, we need to build a reference
sub get_return {
my($s, $final, $makeref) = @_;
my ($return_sub);
if($makeref) {
# Avoid the hash key lookup, it is a closure
my $delim = $s->{mv_index_delim};
# We will pick out the return fields later if sorting
# This returns
if( $s->{mv_sort_field} || $s->{mv_next_search}) {
return (
sub {
[ split /$delim/o, shift(@_) ]
},
1,
);
}
elsif($s->{mv_return_fields}) {
my @fields = @{$s->{mv_return_fields}};
$return_sub = sub {
return [ (split /$delim/o, shift(@_))[@fields] ]
};
}
else {
$return_sub = sub {
$_[0] =~ s/$delim.*//s;
return [ $_[0] ];
};
}
}
else {
# We will pick out the return fields later if sorting
# This returns
if(! $final and $s->{mv_sort_field} || $s->{mv_next_search}) {
return ( sub { [ @{ shift(@_) } ] }, 1);
}
if(! $s->{mv_return_fields}) {
$return_sub = sub {
return [ $_[0]->[0] ];
};
}
else {
my @fields = @{$s->{mv_return_fields}};
$return_sub = sub {
my $ref = [ @{$_[0]}[@fields] ];
return $ref;
};
}
}
return $return_sub;
}
my $TextQuery;
BEGIN {
eval {
require Text::Query;
import Text::Query;
$TextQuery = 1;
};
}
sub create_text_query {
my ($s, $i, $string, $op) = @_;
if(! $TextQuery) {
die ::errmsg("No Text::Query module installed, cannot use op=%s", $op);
}
$s ||= {};
$op ||= 'sq';
my $q;
#::logDebug("query creation called, op=$op");
my $cs = ref ($s->{mv_case})
? $s->{mv_case}[$i]
: $s->{mv_case};
my $ac = ref ($s->{mv_all_chars})
? $s->{mv_all_chars}[$i]
: $s->{mv_all_chars};
my $su = ref ($s->{mv_substring_match})
? $s->{mv_substring_match}[$i]
: $s->{mv_substring_match};
$string =~ s/(\w)'(s)\b/$1$2/g;
$string =~ s/(\w)'(\w+)/$1 and $2/g;
$string =~ s/'//g;
#::logDebug("query creation called, op=$op cs=$cs ac=$ac");
if($op eq 'aq') {
$q = new Text::Query($string,
-parse => 'Text::Query::ParseAdvanced',
-solve => 'Text::Query::SolveAdvancedString',
-build => 'Text::Query::BuildAdvancedString',
);
}
else {
$q = new Text::Query($string,
-parse => 'Text::Query::ParseSimple',
-solve => 'Text::Query::SolveSimpleString',
-build => 'Text::Query::BuildSimpleString',
);
}
$q->prepare($string,
-litspace => $s->{mv_exact_match},
-case => $cs,
-regexp => ! $ac,
-whole => ! $su,
);
#::logDebug("query object called, is: " . ::uneval($q));
return sub {
my $str = shift;
#::logDebug("query routine called string=$str");
$q->matchscalar($str);
};
}
my %numopmap = (
'!=' => [' != '],
'!~' => [' !~ m{', '}'],
'<' => [' < '],
'<=' => [' <= '],
'<>' => [' != '],
'=' => [' == '],
'==' => [' == '],
'=~' => [' =~ m{', '}'],
'>' => [' > '],
'>=' => [' >= '],
'em' => [' =~ m{^', '$}'],
'eq' => [' == '],
'ge' => [' >= '],
'gt' => [' > '],
'le' => [' <= '],
'lt' => [' < '],
'ne' => [' != '],
'rm' => [' =~ m{', '}'],
'rn' => [' !~ m{', '}'],
'like' => [' =~ m{LIKE', '}i'],
'LIKE' => [' =~ m{LIKE', '}i'],
);
my %stropmap = (
'!=' => [' ne q{', '}'],
'!~' => [' !~ m{', '}'],
'<' => [' lt q{', '}'],
'>' => [' gt q{', '}'],
'<=' => [' le q{', '}'],
'<>' => [' ne q{', '}'],
'=' => [' eq q{', '}'],
'==' => [' eq q{', '}'],
'=~' => [' =~ m{', '}'],
'>=' => [' ge q{', '}'],
'eq' => [' eq q{', '}'],
'ge' => [' ge q{', '}'],
'gt' => [' gt q{', '}'],
'le' => [' le q{', '}'],
'lt' => [' lt q{', '}'],
'ne' => [' ne q{', '}'],
'em' => [' =~ m{^', '$}i'],
'rm' => [' =~ m{', '}i'],
'rn' => [' !~ m{', '}i'],
'aq' => [\&create_text_query, 'aq'],
'tq' => [\&create_text_query, 'tq'],
'like' => [' =~ m{LIKE', '}i'],
'LIKE' => [' =~ m{LIKE', '}i'],
);
sub map_ops {
my($s, $count) = @_;
my $c = $s->{mv_column_op} or return ();
my $i;
my $op;
for($i = 0; $i < $count; $i++) {
next unless $c->[$i];
$c->[$i] =~ tr/ \t//;
my $o = $c->[$i];
$c->[$i] = $s->{mv_numeric}[$i]
? $numopmap{$o}
: $stropmap{$o};
if (ref($c->[$i]) eq 'ARRAY') {
$c->[$i] = [ @{$c->[$i]} ];
}
elsif (!$c->[$i]) {
my $r;
$c->[$i] = [$r, $o], next
if $r = Vend::Util::codedef_routine('SearchOp',$o);
}
if (!$c->[$i]) {
$s->search_error("Unknown mv_column_op (%s)",$o);
}
}
@{$s->{mv_column_op}};
}
sub code_join {
my ($coderef, $num) = @_;
return $num unless defined $coderef->[$num];
my $out = ' ( ';
$out .= join("", @{$coderef->[$num]});
$out .= ' ) ';
}
sub create_field_hash {
my $s = shift;
my $fn = $s->{mv_field_names}
or return;
my $fh = {};
my $idx = 0;
for(@$fn) {
$fh->{$idx} = $idx;
$fh->{$_} = $idx++;
}
return $fh;
}
# Returns a screening function based on the search specification.
# The $f is a reference to previously created search function which does
# a pattern match on the line.
# Makeref says we have to build a reference from the supplied text line
sub get_limit {
my($s, $f, $makeref) = @_;
my $limit_sub;
my $range_code = '';
my $rd = $s->{mv_record_delim} || '\n';
my $code;
if($makeref) {
$code = "sub {\nmy \$line = [split /$s->{mv_index_delim}/, shift(\@_)];\n";
}
else {
$code = "sub {\nmy \$line = shift;\n";
}
$code .= "my \@fields = \@\$line;\n";
my $have_hf;
if ($s->{mv_hide_field}) {
$s->{mv_field_hash} = create_field_hash($s)
unless $s->{mv_field_hash};
my $hf = $s->{mv_field_hash}{$s->{mv_hide_field}};
if (defined $hf) {
$code .= "return if \$fields[$hf];\n";
$have_hf = 1;
}
else {
::logError("Ignoring unknown mv_hide_field specification: $s->{mv_hide_field}");
delete $s->{mv_hide_field};
}
}
my $join_key;
$join_key = defined $s->{mv_return_fields} ? $s->{mv_return_fields}[0] : 0;
$join_key = 0 if $join_key eq '*';
my $sub;
my $wild_card;
my @join_fields;
my $joiner;
my $ender;
if($s->{mv_orsearch}[0]) {
$joiner = '1 if';
$ender = 'return undef;';
}
else {
$joiner = 'undef unless';
$ender = 'return 1;';
}
#my $joiner = $s->{mv_orsearch}[0] ? '1 if' : 'undef unless';
#my $ender = $s->{mv_orsearch}[0] ? 'return undef;' : 'return 1;';
# Here we join data if we are passed a non-numeric field. The array
# index comes from the end to avoid counting the fields.
my $k = 0;
for(@{$s->{mv_search_field}}) {
#::logDebug("join_field $_");
next unless /[\*:]+/;
unshift(@join_fields, $_);
$_ = --$k;
#::logDebug("join_field $_");
}
# Add the code to get the join data if it is there
if(@join_fields) {
$s->{mv_field_hash} = create_field_hash($s)
unless $s->{mv_field_hash};
$code .= <<EOF;
my \$key = \$line->[$join_key];
EOF
for(@join_fields) {
my ($table, $col) = split /:+/, $_, 2;
if($table) {
$wild_card = 0;
$code .= <<EOF;
push \@fields, Vend::Data::database_field('$table', \$key, '$col');
EOF
}
elsif ($col =~ tr/:/,/) {
$col =~ tr/ \t//d;
my @col = map { $s->{mv_field_hash}{$_} } split /,/, $col;
@col = grep defined $_, @col;
$col = join ",", @col;
next unless $col;
$wild_card = 1;
$col =~ s/[^\d,.]//g;
$code .= <<EOF;
my \$addl = join " ", \@fields[$col];
push \@fields, \$addl;
EOF
}
else {
$wild_card = 1;
$code .= <<EOF;
my \$addl = join " ", \@fields;
push \@fields, \$addl;
EOF
}
}
}
my $fields = join ",", @{$s->{mv_search_field}};
if ( ref $s->{mv_range_look} ) {
$range_code = <<EOF;
return $joiner \$s->range_check(\$line);
EOF
}
if ( $s->{mv_coordinate} ) {
undef $f;
$ender = '';
if($range_code) {
::logError("Range look not compatible with mv_coordinate. Disabling.");
}
my $callchar = $fields =~ /,/ ? '@' : '$';
$code .= <<EOF;
\@fields = ${callchar}fields[$fields];
EOF
$code .= <<EOF if $Global::DebugFile and $CGI::values{debug};
::logDebug("fields=" . join "|", \@fields);
EOF
my @specs;
# For a limiting function, can't if orsearch
my $field_count = @specs = @{$s->{mv_searchspec}};
my @cases = @{$s->{mv_case}};
my @bounds = @{$s->{mv_substring_match}};
my @ops;
@ops = $s->map_ops($field_count);
my @negates = map { $_ ? 'not ' : ''} @{$s->{mv_negate}};
my @begin = @{$s->{mv_begin_string}};
my @group = @{$s->{mv_search_group}};
#::logDebug("Ops=" . ::uneval(\@ops));
#::logDebug("Begin=" . join ",", @begin);
#::logDebug("Group=" . join ",", @group);
#::logDebug("Ors=" . join ",", @{$s->{mv_orsearch}});
#::logDebug("Field count=$field_count");
my @code;
my $candidate = '';
my ($i, $start, $term, $like);
for($i = 0; $i < $field_count; $i++) {
undef $candidate, undef $f
if $begin[$i] or $s->{mv_orsearch}[$i];
my $subfrag;
if(! $ops[$i]) {
$start = '=~ m{';
$start .= '^' if $begin[$i];
if($bounds[$i]) {
$term = '}';
}
else {
$term = '\b}';
$start .= '\b' unless $begin[$i];
}
$term .= 'i' unless $cases[$i];
$candidate = 1 if defined $candidate and ! $begin[$i];
}
elsif(ref($ops[$i][0]) eq 'CODE') {
undef $f; undef $candidate;
my $o = shift(@{$ops[$i]});
$s->{search_routines} ||= [];
$s->{search_routines}[$i] = $o->($s, $i, $specs[$i], @{$ops[$i]});
$subfrag = qq{ \$s->{search_routines}[$i]->(\$fields[$i])};
}
else {
$ops[$i][0] =~ s/m\{$/m{^/ if $begin[$i];
! $bounds[$i]
and $ops[$i][0] =~ s/=~\s+m\{$/=~ m{\\b/
and $ops[$i][1] = '\b' . $ops[$i][1];
$start = $ops[$i][0];
#::logDebug("Op now=" . ::uneval($ops[$i]));
($term = $ops[$i][1] || '')
and $cases[$i]
and $term =~ s/i$//
and defined $candidate
and $candidate = 1;
#::logDebug("Candidate now=$candidate");
}
if ($start =~ s/LIKE$//) {
$specs[$i] =~ s/^(%)?([^%]*)(%)?$/$2/;
# Substitute if only one present
# test $1
undef $like;
if($1 ne $3) {
$specs[$i] = $1
? $specs[$i] . '$'
: '^' . $specs[$i];
$like = 1;
}
}
if ($i >= $k + $field_count) {
undef $candidate if ! $wild_card;
#::logDebug(triggered wild_card: $wild_card");
$wild_card = 0;
}
if(defined $candidate and ! $like) {
undef $f if $candidate;
$f = "sub { return 1 if $negates[$i]\$_ $start$specs[$i]$term ; return 0}"
if ! defined $f and $start =~ m'=~';
undef $candidate if $candidate;
}
my $grp = $group[$i] || 0;
my $frag;
if($subfrag) {
$frag = $subfrag;
}
else {
$frag = qq{$negates[$i]\$fields[$i] $start$specs[$i]$term};
}
#::logDebug("Code fragment is q!$frag!");
unless ($code[$grp]) {
$code[$grp] = [ $frag ];
}
else {
my $join = $s->{mv_orsearch}[$i] ? ' or ' : ' and ';
push @{$code[$grp]}, "$join$frag";
}
}
#::logDebug("coderef=" . ::uneval_it(\@code));
undef $f if $s->{mv_search_relate} =~ s/\bor\b/or/ig;
undef $f unless $s->{regex_specs} or $s->{eq_specs};
DOLIMIT: {
#::logDebug(::uneval_it({%$s}));
#::logDebug("do_limit.");
last DOLIMIT if $f;
#::logDebug("do_limit past f.");
last DOLIMIT if $s->{mv_small_data};
last DOLIMIT if $s->{eq_specs_sql};
last DOLIMIT if (grep $_, @{$s->{mv_orsearch}});
last DOLIMIT if defined $s->{mv_search_relate}
&& $s->{mv_search_relate} =~ s/\bor\b/or/i;
my @pats;
#::logDebug("regex_specs=" . ::uneval($s->{regex_specs}));
for(@{$s->{regex_specs}}) {
push @pats, $_;
}
for(@{$s->{eq_specs}}) {
push @pats, quotemeta $_;
}
if(defined $pats[1]) {
@pats = sort { length($b) <=> length($a) } @pats;
}
elsif(! defined $pats[0]) {
last DOLIMIT;
}
eval {
#::logDebug("filter function going and...");
$f = $s->create_search_and( 0, 1, 0, @pats);
};
undef $f if $@;
}
::logDebug("filter function code is: $f")
if $Global::DebugFile and $CGI::values{debug};
use locale;
$f = eval $f if $f and ! ref $f;
die($@) if $@;
my $relate;
if(scalar @code > 1) {
$relate = 'return ( ';
if ($s->{mv_search_relate}) {
$relate .= $s->{mv_search_relate};
$relate =~ s/([0-9]+)/code_join(\@code,$1)/eg;
}
else {
$relate .= '(';
$relate .= join ') and (', (map { join "", @$_ } @code);
$relate .= ')';
}
$relate .= ' );';
}
elsif (! ref $code[0] ) {
die("bad limit creation code in coordinated search, probably search group without search specification.");
}
else {
$relate = "return ( " . join("", @{$code[0]}) . " );";
}
$code .= $relate;
$code .= "\n}\n";
::logDebug("coordinate search code is:\n$code")
if $Global::DebugFile and $CGI::values{debug};
}
elsif ( @{$s->{mv_search_field}} ) {
if(! $s->{mv_begin_string}[0]) {
#::logDebug("Not begin, sub=$f");
$sub = $f;
}