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Annotation of db/prgsrc/eq/findequal.pl, revision 1.6

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: 
                     35: if (checktable('equalto')) {die "The table equalto exists. You must delete it first!\n"};
                     36: 
1.6     ! roma7      37: if ((uc 'Á') ne 'á') {die "!Koi8-r locale not installed!\n"};
        !            38: 
        !            39: print "before mydo";
        !            40: 
        !            41: 
1.1       roma7      42: print "Creating equalto table...\n";
                     43: 
                     44:        mydo("CREATE TABLE equalto (
                     45:                First   INT UNSIGNED NOT NULL PRIMARY KEY, KEY FirstKey (First),
                     46:                Second  INT UNSIGNED NOT NULL, KEY SecondKey (Second)
                     47:        )")
                     48: 
                     49:        or die "Can't create equalto table: $!\n";
                     50: 
                     51: 
1.5       roma7      52: if ((uc 'Á') ne 'á') {die "!Koi8-r locale not installed!\n"};
                     53: print "before getbase";
1.1       roma7      54: 
                     55: getbase(QuestionId,Question);
                     56: 
                     57: 
1.5       roma7      58: print "after getbase";
1.1       roma7      59: 
                     60: print "Loading questions...\n";
                     61: 
1.4       roma7      62: if ((uc 'Á') ne 'á') {die "!Koi8-r locale not installed!\n"};
1.1       roma7      63: 
                     64: while ((($id, $a) = getrow), $id) 
                     65: {
                     66:         if (!($id%1000)) {print "$id questions loaded...\n"}
                     67: 
                     68:         $a=~s/³£pPHXxAaBEe3KMoOT/åÅÒòîèÈáÁ÷åÅúëíÏïô/;
                     69:         $a=uc $a;
                     70: 
1.3       roma7      71:        $a=~s/[^êãõëåîçûýúèÿüöäìïòðá÷ùæñþóíéôøâàÊÃÕËÅÎÇÛÝÚÈßÆÙ×ÁÐÒÏÌÄÖÜÑÞÓÍÉÔØÂÀ]//g;
1.1       roma7      72:        $ar[$id]=$a;
                     73:        $last=$id;
                     74: }
                     75: 
                     76: 
                     77: 
                     78: print "Checking...\n";
                     79: 
                     80: $cur=0;
                     81: $ar[0]="\0";
                     82: foreach $q (sort {($ar[$a] cmp $ar[$b])} 1..$last)
                     83: {
                     84:   if ($ar[$q] eq $ar[$cur]) {$equal{$q}=$cur} else {$cur=$q} 
                     85: }
                     86: 
                     87: print scalar keys %equal, " pairs found\n";
                     88: 
                     89: print("Updating the DB...\n");
                     90: 
                     91: foreach $a (keys %equal)
                     92: {
                     93:   mydo("INSERT INTO equalto (First,Second) VALUES ($a,$equal{$a})");
                     94: }
                     95: