Annotation of loncom/homework/randomlabel.pm, revision 1.65

1.1       tsai        1: # The LearningOnline Network with CAPA
                      2: # random labelling tool
1.8       albertel    3: #
1.65    ! raeburn     4: # $Id: randomlabel.pm,v 1.64 2005/02/10 23:00:10 albertel Exp $
1.8       albertel    5: #
                      6: # Copyright Michigan State University Board of Trustees
                      7: #
                      8: # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
                      9: #
                     10: # LON-CAPA is free software; you can redistribute it and/or modify
                     11: # it under the terms of the GNU General Public License as published by
                     12: # the Free Software Foundation; either version 2 of the License, or
                     13: # (at your option) any later version.
                     14: #
                     15: # LON-CAPA is distributed in the hope that it will be useful,
                     16: # but WITHOUT ANY WARRANTY; without even the implied warranty of
                     17: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
                     18: # GNU General Public License for more details.
                     19: #
                     20: # You should have received a copy of the GNU General Public License
                     21: # along with LON-CAPA; if not, write to the Free Software
                     22: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
                     23: #
                     24: # /home/httpd/html/adm/gpl.txt
                     25: #
                     26: # http://www.lon-capa.org/
                     27: #
1.3       tsai       28: # 7/20/2001 Isaac Tsai, initial syntax
                     29: # 8/10/2001 Isaac Tsai, 
                     30: # 8/30/2001 Isaac Tsai, 
1.1       tsai       31: # SYNTAX:
1.4       albertel   32: # <randomlabel bgimg="URL" width="12" height="45" texwidth="50">
                     33: #    <labelgroup name="GroupOne" type="image">
                     34: #      <location x="123" y="456" />
                     35: #      <location x="321" y="654" />
                     36: #      <location x="213" y="546" />
                     37: #      <label description="TEXT-1">IMG-URL</label>
                     38: #      <label description="TEXT-2">IMG-URL</label>
                     39: #      <label description="TEXT-3">IMG-URL</label>
1.1       tsai       40: #    </labelgroup>
1.4       albertel   41: #    <labelgroup name="GroupTwo" type="text">
                     42: #      <location x="12" y="45" />
                     43: #      <location x="32" y="65" />
                     44: #      <location x="21" y="54" />
1.3       tsai       45: #      <label>TEXT-1</label>
                     46: #      <label>TEXT-2</label>
                     47: #      <label>TEXT-3</label>
1.1       tsai       48: #    </labelgroup>
                     49: #   </randomlabel>
                     50: #  ===========================================
1.3       tsai       51: #  side effect:
                     52: #    location (123,456): $GroupOne[0] = 2  # images give out indexes
                     53: #             (321,654): $GroupOne[1] = 1
                     54: #             (213,546): $GroupOne[2] = 0
                     55: #    location (12,45)  : $GroupTwo[0] = "TEXT-3"
                     56: #             (32,65)  : $GroupTwo[1] = "TEXT-1"
                     57: #             (21,54)  : $GroupTwo[2] = "TEXT-2"
1.1       tsai       58: #  ===========================================
                     59: package Apache::randomlabel;
1.24      sakharuk   60: use Apache::lonnet;
1.1       tsai       61: use strict;
1.13      sakharuk   62: use Apache::edit;
1.36      sakharuk   63: use Apache::File();
1.38      sakharuk   64: use Apache::Constants qw(:common :http);
1.1       tsai       65: 
1.53      albertel   66: my %args;
                     67: my $cgi_id;
                     68: 
1.13      sakharuk   69: BEGIN {
1.57      albertel   70:     &Apache::lonxml::register('Apache::randomlabel',('randomlabel','labelgroup','location','label','bgimg'));
1.1       tsai       71: }
                     72: 
1.23      matthew    73: sub check_int {
                     74:     # utility function to do error checking on a integer.
                     75:     my ($num,$default) = @_;
                     76:     $default = 100 if (! defined($default));
                     77:     $num =~ s/\s+//g;  # We dont need no stinkin white space!
                     78:     # If it is a real, just grab the integer part.
                     79:     ($num,undef) = split (/\./,$num) if ($num =~ /\./); 
                     80:     # set to default if what we have left doesn't match anything...
                     81:     $num = $default unless ($num =~/^\d+$/);
                     82:     return $num;
                     83: }
                     84: 
1.64      albertel   85: my ($height_param,$width_param);
1.1       tsai       86: sub start_randomlabel {
1.47      albertel   87:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
                     88:     my $result='';
                     89:     push (@Apache::lonxml::namespace,'randomlabel');
1.64      albertel   90:     ($height_param,$width_param)=(0,0);
1.47      albertel   91:     my $bgimg= &Apache::lonxml::get_param('bgimg',$parstack,$safeeval);
1.60      albertel   92:     if ( defined($bgimg) && $bgimg !~ /^http:/ ) {
1.47      albertel   93: 	$bgimg=&Apache::lonnet::filelocation($Apache::lonxml::pwd[-1],$bgimg);
1.65    ! raeburn    94: 	if (&Apache::lonnet::repcopy($bgimg) ne 'OK') {
1.47      albertel   95: 	    $bgimg='/home/httpd/html/adm/lonKaputt/lonlogo_broken.gif';
                     96: 	}
1.42      www        97:     }
1.59      albertel   98:     $Apache::randomlabel::obj_cnt=0;
1.47      albertel   99:     if ($target eq 'web') {
1.53      albertel  100: 	$cgi_id=&Apache::loncommon::get_cgi_id();
                    101: 	%args=();
                    102: 	$args{"cgi.$cgi_id.BGIMG"}=&Apache::lonnet::escape($bgimg);
1.64      albertel  103:     } elsif ($target eq 'tex' && defined($bgimg)) {
                    104: 	$result.=&make_eps_image($bgimg,$parstack,$safeeval);
1.47      albertel  105:     } elsif ($target eq 'edit') {
                    106: 	$result.=&Apache::edit::tag_start($target,$token);
                    107: 	$Apache::edit::bgimgsrc=
                    108: 	    &Apache::lonxml::get_param('bgimg',$parstack,$safeeval);
                    109: 	$Apache::edit::bgimgsrccurdepth=$Apache::lonxml::curdepth;
                    110: 	$result.=&Apache::edit::text_arg('Image:','bgimg',$token,75).' ';
                    111: 	$result.=&Apache::edit::browse('bgimg').' ';
                    112: 	$result.=&Apache::edit::search('bgimg').'<br />'.
                    113: 	    &Apache::edit::text_arg('Width(pixel):' ,'width'   ,$token,6).
                    114: 	    &Apache::edit::text_arg('Height(pixel):','height'  ,$token,6).
                    115: 	    &Apache::edit::text_arg('TeXWidth(mm):' ,'texwidth',$token,6).
                    116: 	    &Apache::edit::end_row().&Apache::edit::start_spanning_row();     
                    117:     } elsif ($target eq 'modified') {
                    118: 	my $constructtag=&Apache::edit::get_new_args($token,$parstack,
                    119: 						     $safeeval,'bgimg','width',
                    120: 						     'height','texwidth');
                    121: 	if ($constructtag) {
                    122: 	    $result = &Apache::edit::rebuild_tag($token);
                    123: 	    $result.=&Apache::edit::handle_insert();
                    124: 	}
1.31      sakharuk  125:     }
1.47      albertel  126:     return $result;
1.1       tsai      127: }
                    128: 
                    129: sub end_randomlabel {
1.47      albertel  130:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
                    131:     my $result='';
                    132:     my $count;
                    133:     pop @Apache::lonxml::namespace;
                    134:     if ($target eq 'web') {
1.59      albertel  135: 	$count = $Apache::randomlabel::obj_cnt;
                    136: 	if( $count != 0) { $args{"cgi.$cgi_id.OBJCOUNT"}=$count; }
1.53      albertel  137: 	$result.='<img src="/adm/randomlabel.png?token='.$cgi_id.'" /><br />'."\n";
                    138: 	&Apache::lonnet::appenv(%args);
1.47      albertel  139:     } elsif ($target eq 'tex') {
                    140: 	$result='\end{picture}\\\\';
1.64      albertel  141: 	$result.= ' \vskip -'.$height_param.' mm }  \\\\ ';
1.47      albertel  142:     } elsif ($target eq 'edit') {
                    143: 	$result.=&Apache::edit::end_table;
                    144:     }
                    145:     return $result;
1.1       tsai      146: }
                    147: 
1.57      albertel  148: sub start_bgimg {
                    149:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
                    150:     my $result='';
                    151:     if ($target eq 'web' || $target eq 'tex' || $target eq 'analyze') { 
1.64      albertel  152: 	&Apache::lonxml::startredirection(); 
1.57      albertel  153:     }
                    154:     return $result;
                    155: }
                    156: 
                    157: sub end_bgimg {
                    158:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
                    159:     my $result='';
                    160:     if ($target eq 'web' || $target eq 'tex' || $target eq 'analyze') { 
1.64      albertel  161: 	my $bgimg=&Apache::lonxml::endredirection(); 
1.57      albertel  162: 	if ($target eq 'web') {
                    163: 	    $bgimg=&Apache::imageresponse::clean_up_image($bgimg);
                    164: 	    $args{"cgi.$cgi_id.BGIMG"}=&Apache::lonnet::escape($bgimg);
                    165: 	} elsif ($target eq 'tex') {
1.64      albertel  166: 	    $result.=&make_eps_image($bgimg,$parstack,$safeeval,-2);
1.57      albertel  167: 	}
                    168:     }
                    169:     return $result;
                    170: }
                    171: 
                    172: sub make_eps_image {
1.64      albertel  173:     my ($bgimg,$parstack,$safeeval,$depth)=@_;
                    174:     my ($path,$file) = &Apache::londefdef::get_eps_image($bgimg);
                    175:     ($height_param,$width_param)=
                    176: 	&Apache::londefdef::image_size($bgimg,0.3,$parstack,$safeeval,
                    177: 				       $depth,1);
                    178:     my $dirtywidth=$width_param+5;
1.57      albertel  179:     my $result.='\vspace*{2mm}\noindent \parbox{'.$dirtywidth.
1.64      albertel  180: 	' mm}{  \noindent \epsfxsize='.$width_param.
                    181: 	' mm \epsffile{'.$path.$file.
1.57      albertel  182: 	'}\setlength{\unitlength}{1mm}  \begin{picture}('.
1.64      albertel  183: 	$width_param.','.$height_param.')(0,-'.$height_param.')';
1.57      albertel  184:     return $result;
                    185: }
                    186: 
1.1       tsai      187: sub start_labelgroup {
1.47      albertel  188:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
                    189:     my $result='';
                    190:     my $name = &Apache::lonxml::get_param('name',$parstack,$safeeval);
                    191:     my $type = &Apache::lonxml::get_param('type',$parstack,$safeeval);
                    192:     $type =~tr/A-Z/a-z/;
1.48      albertel  193:     if ($target ne 'modified' && ($name =~ /\W/ || $name =~ /^[0-9]/)) {
                    194: 	&Apache::lonxml::error("Only _ a-z A-Z and 0-9 are allowed in the name to a labelgroup, and the first character can not be a number.<br />");
                    195:     }
1.47      albertel  196:     if ($target eq 'web' || $target eq 'tex' ||
                    197: 	$target eq 'grade' || $target eq 'answer' || $target eq 'analyze') {
                    198: 	$Apache::randomlabel::groupname=$name;
                    199: 	$Apache::randomlabel::type=$type;
                    200: 	@Apache::randomlabel::xcoord = ();
                    201: 	@Apache::randomlabel::ycoord = ();
                    202: 	@Apache::randomlabel::value = ();
                    203: 	@Apache::randomlabel::label_arr  = ();
                    204: 	@Apache::randomlabel::decription  = ();
                    205:     } elsif ($target eq 'edit') {
                    206: 	$result.=&Apache::edit::tag_start($target,$token);
                    207: 	$result.=&Apache::edit::text_arg('Name:','name',$token).
1.63      albertel  208: 	    &Apache::edit::select_arg('Type:','type',['text','image'],$token);
                    209: 	if (!defined($token->[2]{'TeXsize'})) {
                    210: 	    $token->[2]{'TeXsize'}='\normalsize';
                    211: 	}
                    212: 	$result.=&Apache::edit::select_arg('TeX font size:','TeXsize',
                    213: 					   ['\tiny','\scriptsize',
                    214: 					    '\footnotesize','\small',
                    215: 					    '\normalsize','\large','\Large',
                    216: 					    '\LARGE','\huge','\Huge'],
                    217: 					   $token);
                    218: 	$result.=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1.47      albertel  219:     } elsif ($target eq 'modified') {
                    220: 	my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.63      albertel  221: 						     $safeeval,'name','type',
                    222: 						     'TeXsize');
1.47      albertel  223: 	if ($constructtag) {
                    224: 	    $result = &Apache::edit::rebuild_tag($token);
                    225: 	    $result.=&Apache::edit::handle_insert();
                    226: 	}
1.4       albertel  227:     }
1.47      albertel  228:     return $result;
1.1       tsai      229: }
                    230: 
1.5       albertel  231: sub add_vars {
1.47      albertel  232:     my ($name,$order,$label,$labelorder,$value,$image,$safeeval) = @_;
1.61      albertel  233:     if (!defined($name) || $name eq '') { return; }
1.47      albertel  234:     my $code = '${'.$name."}{'".($order+1)."'}='".$label."';";
                    235:     my $out=Apache::run::run($code,$safeeval);
                    236:     if ($value) {
                    237: 	$code = '${'.$name."}{'value_".($order+1)."'}='".$value."';";
                    238: 	$out=Apache::run::run($code,$safeeval);
                    239: 	$code = '${'.$name."}{'labelvalue_".($labelorder+1)."'}='".$value."';";
                    240: 	$out=Apache::run::run($code,$safeeval);
                    241:     }
                    242:     if ($image) {
                    243: 	my $code = '${'.$name."}{'image_".($order+1)."'}='".$image."';";
                    244: 	my $out=Apache::run::run($code,$safeeval);
                    245:     }
                    246:     $code = '${'.$name."}{'numlocations'}='".($order+1)."';";
1.5       albertel  247:     $out=Apache::run::run($code,$safeeval);
1.4       albertel  248: }
1.5       albertel  249: 
1.1       tsai      250: # begin to assign labels to locations
                    251: sub end_labelgroup {
1.47      albertel  252:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
                    253:     my $gname = $Apache::randomlabel::groupname;
                    254:     my $type  = $Apache::randomlabel::type;
                    255:     my $result='';
                    256:     if ($target eq 'web' || $target eq 'answer' || $target eq 'grade' ||
                    257: 	$target eq 'analyze') {
                    258: 	my @idx_arr = (0 .. $#Apache::randomlabel::label_arr);
                    259: 	&Apache::structuretags::shuffle(\@idx_arr);
                    260: 	for(0 .. $#Apache::randomlabel::label_arr) {
                    261: 	    my $str;
                    262: 	    my $label = "$Apache::randomlabel::label_arr[ $idx_arr[$_] ]";
                    263: 	    my $x = $Apache::randomlabel::xcoord[$_];
                    264: 	    my $y = $Apache::randomlabel::ycoord[$_];
                    265: 	    my $value = $Apache::randomlabel::value[$_];
1.59      albertel  266: 	    my $i=$Apache::randomlabel::obj_cnt++;
1.47      albertel  267: 	    if( $type eq 'text') {
                    268: 		&add_vars($gname,$_,$label,$idx_arr[$_],$value,'',$safeeval);
1.59      albertel  269: 		$str = join(':',$x,$y,&Apache::lonnet::escape($label));
                    270: 		$args{"cgi.$cgi_id.OBJTYPE"}.='LABEL:';
1.47      albertel  271: 	    } elsif ( $type eq 'image') {
                    272: 		&add_vars($gname,$_,
                    273: 			  $Apache::randomlabel::description[$idx_arr[$_]],
                    274: 			  $idx_arr[$_],$value,$label,$safeeval);
1.59      albertel  275: 		$str = join(':',$x,$y,&Apache::lonnet::escape($label));
                    276: 		$args{"cgi.$cgi_id.OBJTYPE"}.='IMAGE:';
1.47      albertel  277: 	    } else {
                    278: 		&Apache::lonxml::error('Unknown type of label :'.$type.':');
                    279: 	    }
1.59      albertel  280: 	    if ($target eq 'web') { $args{"cgi.$cgi_id.OBJ$i"} =$str; }
1.47      albertel  281: 	}
                    282:     } elsif ($target eq 'tex') {
                    283: 	my $WX1=0; #  Web x-coord. of upper left corner (ULC)
                    284: 	my $WY1=0; #  Web y-coord. of (ULC)
                    285: 	my $wwidth=&Apache::lonxml::get_param('width',$parstack,$safeeval,-2);
                    286: 	my $wheight=&Apache::lonxml::get_param('height',$parstack,$safeeval,-2);
1.63      albertel  287: 	my $TeXsize=&Apache::lonxml::get_param('TeXsize',$parstack,$safeeval);
                    288: 	if (!defined($TeXsize)) { $TeXsize='\\normalsize'; }
1.62      albertel  289: 	
1.47      albertel  290: 	my @idx_arr = (0 .. $#Apache::randomlabel::label_arr);
                    291: 	&Apache::structuretags::shuffle(\@idx_arr);
                    292: 
                    293: 	&Apache::lonxml::debug("Array is:".$#Apache::randomlabel::label_arr.":");
                    294: 	for(my $i=0;$i <= $#Apache::randomlabel::label_arr; $i++) {
                    295: 	    my $label = "$Apache::randomlabel::label_arr[ $idx_arr[$i] ]";
                    296: 	    my $x = $Apache::randomlabel::xcoord[$i];
1.62      albertel  297: 	    # FIXME the 3.5 here is the 'height' of the letter in TeX
                    298: 	    my $y = $Apache::randomlabel::ycoord[$i]-3.5;
1.47      albertel  299: 	    my $value = $Apache::randomlabel::value[$i];
                    300: 	    #x latex coordinate
1.64      albertel  301: 	    my $tcX=($x)*($width_param/$wwidth);
1.47      albertel  302: 	    #y latex coordinate
                    303:             #      my $ratio=($wwidth > 0 ? $wheight/$wwidth : 1 );
1.64      albertel  304: 	    my $tcY=$height_param-$y*($height_param/$wheight);
1.47      albertel  305: 	    $tcX=sprintf('%.2f',$tcX);
                    306: 	    $tcY=sprintf('%.2f',$tcY);
1.63      albertel  307: 	    $result.='\put('.$tcX.','.$tcY.'){'.$TeXsize.' \bf '.$label.'}'."\n";
1.47      albertel  308: 	    if( $type eq 'text') {
                    309: 		&add_vars($gname,$i,$label,$idx_arr[$i],$value,'',$safeeval);
                    310: 	    } elsif ( $type eq 'image') {
                    311: 		&add_vars($gname,$i,
                    312: 			  $Apache::randomlabel::description[$idx_arr[$i]],
                    313: 			  $idx_arr[$i],$value,$label,$safeeval);
                    314: 	    } else {
                    315: 		&Apache::lonxml::error('Unknown type of label :'.$type.':');
                    316: 	    }
                    317: 	}
                    318:     } elsif ($target eq 'edit') {
                    319: 	$result.=&Apache::edit::end_table;
1.3       tsai      320:     }
1.47      albertel  321:     return $result;
1.1       tsai      322: }
                    323: 
1.5       albertel  324: # <location x="123" y="456" value="some value"/>
1.1       tsai      325: sub start_location {
1.47      albertel  326:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
                    327:     my $x= &check_int(&Apache::lonxml::get_param('x',$parstack,$safeeval),50);
                    328:     my $y= &check_int(&Apache::lonxml::get_param('y',$parstack,$safeeval),50);
                    329:     my $value= &Apache::lonxml::get_param('value',$parstack,$safeeval);
                    330:     my $result='';
                    331:     push(@Apache::randomlabel::xcoord,$x);
                    332:     push(@Apache::randomlabel::ycoord,$y);
                    333:     push(@Apache::randomlabel::value,$value);
                    334:     if ($target eq 'edit') {
                    335: 	$result.=&Apache::edit::tag_start($target,$token);
                    336: 	$result.=&Apache::edit::text_arg('X:','x',$token,4).
                    337: 	    &Apache::edit::text_arg('Y:','y',$token,4).
                    338: 	    &Apache::edit::entercoords('x','y','attribute','width','height').'&nbsp;&nbsp;&nbsp;'.
                    339: 	    &Apache::edit::text_arg('Value:','value',$token).
                    340: 	    &Apache::edit::end_row();
                    341: 	$result.=&Apache::edit::end_table;
                    342:     } elsif ($target eq 'modified') {
                    343: 	my $constructtag=&Apache::edit::get_new_args($token,$parstack,
                    344: 						    $safeeval,'x','y','value');
                    345: 	if ($constructtag) {
                    346: 	    $result = &Apache::edit::rebuild_tag($token);
                    347: 	    $result.=&Apache::edit::handle_insert();
                    348: 	}
1.4       albertel  349:     }
1.47      albertel  350:     return $result;
1.1       tsai      351: }
                    352: 
                    353: sub end_location {
1.47      albertel  354:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
                    355:     my @result;
                    356:     if ($target eq 'edit') { @result=('','no') }
                    357:     return @result;
1.1       tsai      358: }
                    359: 
1.2       tsai      360: # <label>$var_abc</label>
1.1       tsai      361: sub start_label {
1.47      albertel  362:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
                    363:     my $result='';
                    364:     my $type = &Apache::lonxml::get_param('type',$parstack,$safeeval,-2);
                    365:     if ($target eq 'web' || $target eq 'tex' ||
                    366: 	$target eq 'grade' || $target eq 'answer' || $target eq 'analyze') {
1.57      albertel  367: 	&Apache::lonxml::startredirection; 
1.47      albertel  368:     } elsif ($target eq 'edit') {
                    369: 	$result.=&Apache::edit::tag_start($target,$token,"$type Label");
                    370: 	my $text=&Apache::lonxml::get_all_text("/label",$parser);
                    371: 	if ($type eq 'image') {
                    372: 	    $result.=&Apache::edit::end_row().
                    373: 		&Apache::edit::start_spanning_row();
                    374: 	    $result.=&Apache::edit::text_arg('Description:','description',
                    375: 					     $token);
                    376: 	}
                    377: 	if ($type eq 'text') { $result.="Label Text:"; }
                    378: 	if ($type eq 'image') { $result.="Path to image:&nbsp;"; }
                    379: 	$result.=&Apache::edit::editline('',$text,'',50).
                    380: 	    &Apache::edit::end_table();
                    381:     } elsif ($target eq 'modified') {
                    382: 	$result = '<label>';
                    383: 	if ($type eq 'image') {
                    384: 	    my $constructtag=&Apache::edit::get_new_args($token,$parstack,
                    385: 							 $safeeval,
                    386: 							 'description');
                    387: 	    if ($constructtag) {
                    388: 		$result = &Apache::edit::rebuild_tag($token);
                    389: 	    } else {
                    390: 		$result = $token->[4];
                    391: 	    }
                    392: 	}
1.52      albertel  393: 	$result.=&Apache::edit::modifiedfield("/label",$parser);
1.26      albertel  394:     }
1.47      albertel  395:     return $result;
1.1       tsai      396: }
                    397: 
                    398: sub end_label {
1.47      albertel  399:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
                    400:     my @result;
1.57      albertel  401:     if ($target eq 'edit') {
                    402: 	@result=('','no') ;
                    403:     } elsif ($target eq 'web' || $target eq 'tex' || $target eq 'grade' ||
                    404: 	     $target eq 'answer' || $target eq 'analyze') {
                    405: 	my $type = &Apache::lonxml::get_param('type',$parstack,$safeeval,-2);
                    406: 	my $ltext=&Apache::lonxml::endredirection; 
                    407: 	if ($type eq 'image') {
                    408: 	    &Apache::lonxml::debug("Turning $ltext, $Apache::lonxml::pwd[-1]");
                    409: 	    $ltext=&Apache::imageresponse::clean_up_image($ltext);
                    410: #	    $ltext=&Apache::lonnet::filelocation($Apache::lonxml::pwd[-1],
                    411: #						 $ltext);
                    412: 	    &Apache::lonxml::debug("into $ltext");
                    413: 	    my $description = &Apache::lonxml::get_param('description',
                    414: 							 $parstack,$safeeval);
                    415: 	    push(@Apache::randomlabel::description,$description);
1.61      albertel  416: 	} else {
                    417: 	    $ltext=~s/[\r\n]*//gs
1.57      albertel  418: 	}
                    419: 	push(@Apache::randomlabel::label_arr,$ltext);
                    420:     }
1.47      albertel  421:     return @result;
1.1       tsai      422: }
                    423: 
                    424: 1;
                    425: __END__
                    426:  

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