--- loncom/interface/lonprintout.pm 2005/04/07 06:56:23 1.373 +++ loncom/interface/lonprintout.pm 2005/08/16 03:34:34 1.384 @@ -1,7 +1,7 @@ # The LearningOnline Network # Printout # -# $Id: lonprintout.pm,v 1.373 2005/04/07 06:56:23 albertel Exp $ +# $Id: lonprintout.pm,v 1.384 2005/08/16 03:34:34 albertel Exp $ # # Copyright Michigan State University Board of Trustees # @@ -42,6 +42,93 @@ use Apache::lonratedt; use POSIX qw(strftime); use Apache::lonlocal; +my $resources_printed = ''; + +# Determine if a code is a valid numeric code. Valid +# numeric codes must be comprised entirely of digits and +# have a correct number of digits. +# +# Parameters: +# value - proposed code value. +# num_digits - Number of digits required. +# +sub is_valid_numeric_code { + my ($value, $num_digits) = @_; + # Remove leading/trailing whitespace; + $value =~ s/^\s*//; + $value =~ s/\s*$//; + + # All digits? + if ($value =~ /^[0-9]+$/) { + return "Numeric code $value has invalid characters - must only be digits"; + } + if (length($value) != $num_digits) { + return "Numeric code $value incorrect number of digits (correct = $num_digits)"; + } +} +# Determines if a code is a valid alhpa code. Alpha codes +# are ciphers that map [A-J,a-j] -> 0..9 0..9. +# They also have a correct digit count. +# Parameters: +# value - Proposed code value. +# num_letters - correct number of letters. +# Note: +# leading and trailing whitespace are ignored. +# +sub is_valid_alpha_code { + my ($value, $num_letters) = @_; + + # strip leading and trailing spaces. + + $value =~ s/^\s*//g; + $value =~ s/\s*$//g; + + # All alphas in the right range? + if ($value !~ /^[A-J,a-j]+$/) { + return "Invalid letter code $value must only contain A-J"; + } + if (length($value) != $num_letters) { + return "Letter code $value has incorrect number of letters (correct = $num_letters)"; + } +} + +# Determine if a code entered by the user in a helper is valid. +# valid depends on the code type and the type of code selected. +# The type of code selected can either be numeric or +# Alphabetic. If alphabetic, the code, in fact is a simple +# substitution cipher for the actual numeric code: 0->A, 1->B ... +# We'll be nice and be case insensitive for alpha codes. +# Parameters: +# code_value - the value of the code the user typed in. +# code_option - The code type selected from the set in the scantron format +# table. +# Returns: +# undef - The code is valid. +# other - An error message indicating what's wrong. +# +sub is_code_valid { + my ($code_value, $code_option) = @_; + my ($code_type, $code_length) = ('letter', 6); # defaults. + open(FG, $Apache::lonnet::perlvar{'lonTabDir'}.'/scantronformat.tab'); + foreach my $line () { + my ($name, $type, $length) = (split(/:/, $line))[0,2,4]; + if($name eq $code_option) { + $code_length = $length; + if($type eq 'number') { + $code_type = 'number'; + } + } + } + my $valid; + if ($code_type eq 'number') { + $valid = &is_valid_numeric_code($code_value, $code_length); + } else { + $valid = &is_valid_alpha_code($code_value, $code_length); + } + + return "Entering a single code is not supported (yet): $code_type $code_length $valid"; +} + # Compare two students by name. The students are in the form # returned by the helper: # user:domain:section:last, first:status @@ -443,8 +530,8 @@ my %page_formats= '2' => ['3.16 in','13 in','-0.57 in','-0.57 in','-0.5 in'] }, 'album' => { - '1' => [], - '2' => [] + '1' => ['12 in','7.1 in',,'-0.57 in','-0.57 in','-0.5 in'], + '2' => ['6.0 in','7.1 in','-1 in','-1 in','5 in'] }, }, 'tabloid' => { @@ -453,8 +540,8 @@ my %page_formats= '2' => ['4.9 in','16 in','-0.57 in','-0.57 in','-0.5 in'] }, 'album' => { - '1' => [], - '2' => [] + '1' => ['16 in','9.8 in','-0.57 in','-0.57 in','-0.5 in'], + '2' => ['16 in','4.9 in','-0.57 in','-0.57 in','-0.5 in'] }, }, 'executive' => { @@ -648,7 +735,8 @@ sub latex_corrections { $first_comment = index($result,'