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Annotation of db/prgsrc/eq/findequal.pl, revision 1.7

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: 
1.7     ! roma7      35: if ((uc 'Á') ne 'á') {die "!Koi8-r locale not installed!\n"};
        !            36: 
        !            37: print "before checktable";
        !            38: 
        !            39: 
1.1       roma7      40: if (checktable('equalto')) {die "The table equalto exists. You must delete it first!\n"};
                     41: 
1.6       roma7      42: if ((uc 'Á') ne 'á') {die "!Koi8-r locale not installed!\n"};
                     43: 
                     44: print "before mydo";
                     45: 
                     46: 
1.1       roma7      47: print "Creating equalto table...\n";
                     48: 
                     49:        mydo("CREATE TABLE equalto (
                     50:                First   INT UNSIGNED NOT NULL PRIMARY KEY, KEY FirstKey (First),
                     51:                Second  INT UNSIGNED NOT NULL, KEY SecondKey (Second)
                     52:        )")
                     53: 
                     54:        or die "Can't create equalto table: $!\n";
                     55: 
                     56: 
1.5       roma7      57: if ((uc 'Á') ne 'á') {die "!Koi8-r locale not installed!\n"};
                     58: print "before getbase";
1.1       roma7      59: 
                     60: getbase(QuestionId,Question);
                     61: 
                     62: 
1.5       roma7      63: print "after getbase";
1.1       roma7      64: 
                     65: print "Loading questions...\n";
                     66: 
1.4       roma7      67: if ((uc 'Á') ne 'á') {die "!Koi8-r locale not installed!\n"};
1.1       roma7      68: 
                     69: while ((($id, $a) = getrow), $id) 
                     70: {
                     71:         if (!($id%1000)) {print "$id questions loaded...\n"}
                     72: 
                     73:         $a=~s/³£pPHXxAaBEe3KMoOT/åÅÒòîèÈáÁ÷åÅúëíÏïô/;
                     74:         $a=uc $a;
                     75: 
1.3       roma7      76:        $a=~s/[^êãõëåîçûýúèÿüöäìïòðá÷ùæñþóíéôøâàÊÃÕËÅÎÇÛÝÚÈßÆÙ×ÁÐÒÏÌÄÖÜÑÞÓÍÉÔØÂÀ]//g;
1.1       roma7      77:        $ar[$id]=$a;
                     78:        $last=$id;
                     79: }
                     80: 
                     81: 
                     82: 
                     83: print "Checking...\n";
                     84: 
                     85: $cur=0;
                     86: $ar[0]="\0";
                     87: foreach $q (sort {($ar[$a] cmp $ar[$b])} 1..$last)
                     88: {
                     89:   if ($ar[$q] eq $ar[$cur]) {$equal{$q}=$cur} else {$cur=$q} 
                     90: }
                     91: 
                     92: print scalar keys %equal, " pairs found\n";
                     93: 
                     94: print("Updating the DB...\n");
                     95: 
                     96: foreach $a (keys %equal)
                     97: {
                     98:   mydo("INSERT INTO equalto (First,Second) VALUES ($a,$equal{$a})");
                     99: }
                    100: