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Annotation of db/prgsrc/eq/findequal.pl, revision 1.11

1.1       roma7       1: #!perl 
                      2: 
                      3: #!/usr/local/bin/perl -w
                      4: 
                      5: =head1 NAME
                      6: 
                      7: findequal.pl - a script for filling the equalto tablee. 
                      8: 
                      9: =head1 SYNOPSIS
                     10: 
                     11: findequal.pl
                     12: 
                     13: 
                     14: =head1 DESCRIPTION
                     15: 
                     16: This script will create a table B<equalto>
                     17: in the B<chgk> database and fill it with pairs of 
                     18: equal questions. If the tables exist, it will ask user whether
                     19: new table should be created. 
                     20: 
                     21: =head1 AUTHOR
                     22: 
                     23: Roman Semizarov
                     24: 
                     25: =cut
                     26: 
                     27: 
                     28: use DBI;
                     29: use locale;
                     30: use dbchgk;
                     31: use POSIX qw (locale_h);
                     32: 
                     33: do "common.pl";
                     34: 
1.8       roma7      35: my ($thislocale);
1.9       roma7      36: if ($^O =~ /win/i) {
1.8       roma7      37:        $thislocale = "Russian_Russia.20866";
                     38: } else {
                     39:        $thislocale = "ru_RU.KOI8-R";
                     40: }
                     41: POSIX::setlocale( &POSIX::LC_ALL, $thislocale );
                     42: if ((uc 'Á') ne 'á') {die "!Koi8-r locale not installed!\n"};
1.9       roma7      43: 
1.8       roma7      44: 
                     45: 
1.7       roma7      46: if ((uc 'Á') ne 'á') {die "!Koi8-r locale not installed!\n"};
                     47: 
                     48: 
                     49: 
1.1       roma7      50: if (checktable('equalto')) {die "The table equalto exists. You must delete it first!\n"};
                     51: 
1.6       roma7      52: if ((uc 'Á') ne 'á') {die "!Koi8-r locale not installed!\n"};
                     53: 
                     54: 
                     55: 
1.1       roma7      56: print "Creating equalto table...\n";
                     57: 
                     58:        mydo("CREATE TABLE equalto (
                     59:                First   INT UNSIGNED NOT NULL PRIMARY KEY, KEY FirstKey (First),
                     60:                Second  INT UNSIGNED NOT NULL, KEY SecondKey (Second)
                     61:        )")
                     62: 
                     63:        or die "Can't create equalto table: $!\n";
                     64: 
                     65: 
1.5       roma7      66: if ((uc 'Á') ne 'á') {die "!Koi8-r locale not installed!\n"};
                     67: print "before getbase";
1.1       roma7      68: 
1.11    ! roma7      69: getbase(QuestionId,Question,Authors,Comments);
1.1       roma7      70: 
                     71: 
1.5       roma7      72: print "after getbase";
1.1       roma7      73: 
                     74: print "Loading questions...\n";
                     75: 
1.4       roma7      76: if ((uc 'Á') ne 'á') {die "!Koi8-r locale not installed!\n"};
1.1       roma7      77: 
1.11    ! roma7      78: while ((($id, $a,$author,$comment) = getrow), $id) 
1.1       roma7      79: {
                     80:         if (!($id%1000)) {print "$id questions loaded...\n"}
                     81: 
                     82:         $a=~s/³£pPHXxAaBEe3KMoOT/åÅÒòîèÈáÁ÷åÅúëíÏïô/;
                     83:         $a=uc $a;
                     84: 
1.3       roma7      85:        $a=~s/[^êãõëåîçûýúèÿüöäìïòðá÷ùæñþóíéôøâàÊÃÕËÅÎÇÛÝÚÈßÆÙ×ÁÐÒÏÌÄÖÜÑÞÓÍÉÔØÂÀ]//g;
1.1       roma7      86:        $ar[$id]=$a;
1.11    ! roma7      87:        $dop[$id]= ($author ? 2 : 0) + ($comment ? 1 : 0);
1.1       roma7      88:        $last=$id;
                     89: }
                     90: 
                     91: 
                     92: 
                     93: print "Checking...\n";
                     94: 
                     95: $cur=0;
                     96: $ar[0]="\0";
1.11    ! roma7      97: foreach $q (sort {($ar[$a] cmp $ar[$b]) || ($dop[$b]<=>$dop[$a])} 1..$last)
1.1       roma7      98: {
                     99:   if ($ar[$q] eq $ar[$cur]) {$equal{$q}=$cur} else {$cur=$q} 
                    100: }
                    101: 
                    102: print scalar keys %equal, " pairs found\n";
                    103: 
                    104: print("Updating the DB...\n");
                    105: 
                    106: foreach $a (keys %equal)
                    107: {
                    108:   mydo("INSERT INTO equalto (First,Second) VALUES ($a,$equal{$a})");
                    109: }
                    110: