# The LearningOnline Network with CAPA # a pile of common routines # # $Id: loncommon.pm,v 1.20 2001/12/25 21:02:35 www Exp $ # # Copyright Michigan State University Board of Trustees # # This file is part of the LearningOnline Network with CAPA (LON-CAPA). # # LON-CAPA 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. # # LON-CAPA 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 LON-CAPA; if not, write to the Free Software # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA # # /home/httpd/html/adm/gpl.txt # # http://www.lon-capa.org/ # # YEAR=2001 # 2/13-12/7 Guy Albertelli # 12/11,12/12,12/17 Scott Harrison # 12/21 Gerd Kortemeyer # 12/21 Scott Harrison # 12/25 Gerd Kortemeyer # Makes a table out of the previous attempts # Inputs result_from_symbread, user, domain, course_id # Reads in non-network-related .tab files package Apache::loncommon; use strict; use POSIX qw(strftime); use Apache::Constants qw(:common); use Apache::lonmsg(); # ----------------------------------------------- Filetypes/Languages/Copyright my %language; my %cprtag; my %fe; my %fd; my %fc; # -------------------------------------------------------------- Thesaurus data my @therelated=(); my @theword=(); my @thecount=(); my %theindex=(); my $thetotalcount=0; my $thefuzzy=2; my $thethreshold=0.1/$thefuzzy; my $theavecount; # ----------------------------------------------------------------------- BEGIN BEGIN { # ------------------------------------------------------------------- languages { my $fh=Apache::File->new($Apache::lonnet::perlvar{'lonTabDir'}. '/language.tab'); if ($fh) { while (<$fh>) { next if /^\#/; chomp; my ($key,$val)=(split(/\s+/,$_,2)); $language{$key}=$val; } } } # ------------------------------------------------------------------ copyrights { my $fh=Apache::File->new($Apache::lonnet::perlvar{'lonIncludes'}. '/copyright.tab'); if ($fh) { while (<$fh>) { next if /^\#/; chomp; my ($key,$val)=(split(/\s+/,$_,2)); $cprtag{$key}=$val; } } } # ------------------------------------------------------------- file categories { my $fh=Apache::File->new($Apache::lonnet::perlvar{'lonTabDir'}. '/filecategories.tab'); if ($fh) { while (<$fh>) { next if /^\#/; chomp; my ($key,$val)=(split(/\s+/,$_,2)); push @{$fc{$key}},$val; } } } # ------------------------------------------------------------------ file types { my $fh=Apache::File->new($Apache::lonnet::perlvar{'lonTabDir'}. '/filetypes.tab'); if ($fh) { while (<$fh>) { next if (/^\#/); chomp; my ($ending,$emb,$descr)=split(/\s+/,$_,3); if ($descr ne '') { $fe{$ending}=lc($emb); $fd{$ending}=$descr; } } } } # -------------------------------------------------------------- Thesaurus data { my $fh=Apache::File->new($Apache::lonnet::perlvar{'lonTabDir'}. '/thesaurus.dat'); if ($fh) { while (<$fh>) { my ($tword,$tindex,$tcount,$trelated)=split(/\@/,$_); $theindex{$tword}=$tindex; $theword[$tindex]=$tword; $thecount[$tindex]=$tcount; $thetotalcount+=$tcount; $therelated[$tindex]=$trelated; } } $theavecount=$thetotalcount/$#thecount; } } # ============================================================= END BEGIN BLOCK # ---------------------------------------------------------- Is this a keyword? sub keyword { my $newword=shift; $newword=~s/\W//g; $newword=~tr/A-Z/a-z/; my $tindex=$theindex{$newword}; if ($tindex) { if ($thecount[$tindex]>$theavecount) { return 1; } } return 0; } # -------------------------------------------------------- Return related words sub related { my $newword=shift; $newword=~s/\W//g; $newword=~tr/A-Z/a-z/; my $tindex=$theindex{$newword}; if ($tindex) { my %found=(); foreach (split(/\,/,$therelated[$tindex])) { # - Related word found my ($ridx,$rcount)=split(/\:/,$_); # - Direct relation index my $directrel=$rcount/$thecount[$tindex]; if ($directrel>$thethreshold) { foreach (split(/\,/,$therelated[$ridx])) { my ($rridx,$rrcount)=split(/\:/,$_); if ($rridx==$tindex) { # - Determine reverse relation index my $revrel=$rrcount/$thecount[$ridx]; # - Calculate full index $found{$ridx}=$directrel*$revrel; if ($found{$ridx}>$thethreshold) { foreach (split(/\,/,$therelated[$ridx])) { my ($rrridx,$rrrcount)=split(/\:/,$_); unless ($found{$rrridx}) { my $revrevrel=$rrrcount/$thecount[$ridx]; if ( $directrel*$revrel*$revrevrel>$thethreshold ) { $found{$rrridx}= $directrel*$revrel*$revrevrel; } } } } } } } } } return (); } # ---------------------------------------------------------------- Language IDs sub languageids { return sort(keys(%language)); } # -------------------------------------------------------- Language Description sub languagedescription { return $language{shift(@_)}; } # --------------------------------------------------------------- Copyright IDs sub copyrightids { return sort(keys(%cprtag)); } # ------------------------------------------------------- Copyright Description sub copyrightdescription { return $cprtag{shift(@_)}; } # ------------------------------------------------------------- File Categories sub filecategories { return sort(keys(%fc)); } # -------------------------------------- File Types within a specified category sub filecategorytypes { return @{$fc{lc(shift(@_))}}; } # ------------------------------------------------------------------ File Types sub fileextensions { return sort(keys(%fe)); } # ------------------------------------------------------------- Embedding Style sub fileembstyle { return $fe{lc(shift(@_))}; } # ------------------------------------------------------------ Description Text sub filedescription { return $fd{lc(shift(@_))}; } # ------------------------------------------------------------ Description Text sub filedescriptionex { my $ex=shift; return '.'.$ex.' '.$fd{lc($ex)}; } sub get_previous_attempt { my ($symb,$username,$domain,$course)=@_; my $prevattempts=''; if ($symb) { my (%returnhash)= &Apache::lonnet::restore($symb,$course,$domain,$username); if ($returnhash{'version'}) { my %lasthash=(); my $version; for ($version=1;$version<=$returnhash{'version'};$version++) { foreach (sort(split(/\:/,$returnhash{$version.':keys'}))) { $lasthash{$_}=$returnhash{$version.':'.$_}; } } $prevattempts='
History | '; foreach (sort(keys %lasthash)) { $prevattempts.=''.$_.' | '; } for ($version=1;$version<=$returnhash{'version'};$version++) { $prevattempts.='
---|---|
Attempt '.$version.' | '; foreach (sort(keys %lasthash)) { my $value; if ($_ =~ /timestamp/) { $value=scalar(localtime($returnhash{$version.':'.$_})); } else { $value=$returnhash{$version.':'.$_}; } $prevattempts.=''.$value.' | '; } } $prevattempts.='
Current | '; foreach (sort(keys %lasthash)) { my $value; if ($_ =~ /timestamp/) { $value=scalar(localtime($lasthash{$_})); } else { $value=$lasthash{$_}; } $prevattempts.=''.$value.' | '; } $prevattempts.='