--- loncom/xml/londefdef.pm	2023/12/29 23:33:43	1.456.2.6.2.3
+++ loncom/xml/londefdef.pm	2016/07/01 19:59:25	1.459
@@ -1,7 +1,7 @@
 # The LearningOnline Network with CAPA
 # Tags Default Definition Module 
 #
-# $Id: londefdef.pm,v 1.456.2.6.2.3 2023/12/29 23:33:43 raeburn Exp $
+# $Id: londefdef.pm,v 1.459 2016/07/01 19:59:25 raeburn Exp $
 # 
 #
 # Copyright Michigan State University Board of Trustees
@@ -98,19 +98,7 @@ sub start_m {
             # On top of that, MathJax will render math without $, but
             # it will fail with tth. This is worth a warning.
             # (even though some people might just use latex for printing)
-            &Apache::lonxml::warning(&mt('Missing $ in [_1].','<m>'));
-        } elsif (($env{'browser.type'} eq 'safari') && ($env{'form.editxmltext'}) &&
-                 (($env{'form.problemmode'} eq 'view') || ($env{'form.problemmode'} eq 'discard'))) {
-            my $delimiter;
-            if ($inside =~ /\$$/) {
-                $delimiter = '$';
-            } elsif ($inside =~ /\\([)\]])$/) {
-                $delimiter = $1;
-            }
-            if ($delimiter) {
-                &Apache::lonxml::warning(&mt('Insert a space between [_1] and [_2].',
-                                             $delimiter,'</m>'));
-            }
+            &Apache::lonxml::warning(&mt("Missing \$ in <m>."));
         }
 	my $eval=&Apache::lonxml::get_param('eval',$parstack,$safeeval);
 	if ($eval eq 'on') {
@@ -367,7 +355,7 @@ sub start_title {
 	$Apache::londefdef::title = 
 	    &Apache::lonxml::get_all_text('/title',$parser,$style);
     } elsif ($target eq 'tex') {
-	$currentstring .= '\keephidden{Title of the document:  '; 
+	$currentstring .= '\keephidden{Title of the document:  ' 
     }
     if ($target eq 'meta') {
 	$currentstring='<title>';
@@ -612,9 +600,6 @@ sub start_body {
             if ($env{'request.use_absolute'}) {
                 $args->{'use_absolute'} = $env{'request.use_absolute'};
             }
-            if ($env{'form.only_body'}) {
-                $args->{'only_body'} = 1;
-            }
         }
 	$currentstring = 
 	    &Apache::loncommon::start_page($Apache::londefdef::title,
@@ -649,9 +634,9 @@ sub start_body {
 
 sub edit_controls {
     my ($nochgview) = @_;
-    my $result = &Apache::lonxml::seteditor_javascript().'
+    my $result .= '
 <form method="post" action="">
-<div class="LC_edit_problem_header">'."\n";
+<div class="LC_edit_problem_header">';
     unless ($nochgview) {
         $result .= '
 <div class="LC_edit_problem_header_row1">'.
@@ -660,10 +645,13 @@ sub edit_controls {
 </div>';
     }
     $result .= '
-<div>
-<input type="hidden" name="editmode" value="" />
-<input type="button" name="editordefault" accesskey="e" value="'.&mt('Edit').
-'" onclick="seteditmode(this.form,'."'edit'".');" />'."\n";
+<div><input type="submit" name="editmode" accesskey="e" value="'.&mt('Edit').'" />';
+    if ($env{'browser.type'} ne 'explorer' || $env{'browser.version'} > 9) {
+        my $uri = $env{'request.uri'};
+        my $daxeurl = '/daxepage'.$uri;
+        $result .= '<input type="button" value="'.&mt('Edit with Daxe').'" '.
+                  'onclick="window.open(\''.$daxeurl.'\',\'_blank\');" />';
+    }
     if (($env{'request.course.id'}) && ($env{'form.forceedit'})) {
         my $url=&Apache::lonnet::hreflocation('',$env{'request.filename'});
         if ($url =~ /\.html?$/i) {
@@ -838,7 +826,7 @@ sub end_h1 {
 	$currentstring .= $token->[2];
     } elsif ($target eq 'tex') {
 	my $post='\vskip 0 mm ';
-	my $align=lc(&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1));
+	my $align=&Apache::lonxml::get_param('align',$parstack,$safeeval,undef,1);
 	if ($align eq 'center') {
 	    $post='\end{center}';
 	} elsif ($align eq 'left') {
@@ -2089,8 +2077,8 @@ sub end_dt {
 
 sub item_cleanup {
     my $item=&Apache::lonxml::endredirection();
-    $item=~s/\\begin\{center}//g;
-    $item=~s/\\end\{center}//g;
+    $item=~s/\\begin{center}//g;
+    $item=~s/\\end{center}//g;
     return $item;
 }
 
@@ -2884,8 +2872,8 @@ sub start_img {
         my $only = join(',',&Apache::loncommon::filecategorytypes('Pictures'));
 	$currentstring .=&Apache::edit::tag_start($target,$token);
 	$currentstring .=&Apache::edit::text_arg('Image Url:','src',$token,70).
-	    &Apache::edit::browse('src',undef,'alt',$only).' '.
-	    &Apache::edit::search('src',undef,'alt').'<br />';
+                         &Apache::edit::browse_or_search('src',undef,'alt',$only,undef,1).
+                         '<br />';
 	$currentstring .=&Apache::edit::text_arg('Description:','alt',$token,70).'<br />';
 	$currentstring .=&Apache::edit::text_arg('width (pixel):','width',$token,5);
 	$currentstring .=&Apache::edit::text_arg('height (pixel):','height',$token,5).'<br />';
@@ -2907,17 +2895,19 @@ sub start_img {
 	my $src=    &Apache::lonxml::get_param('src',$parstack,$safeeval);
 	my $width=  &Apache::lonxml::get_param('width',$parstack,$safeeval);
 	my $height= &Apache::lonxml::get_param('height',$parstack,$safeeval);
-
+        my $element = &Apache::edit::get_element('src'); 
+        my $text;
         if ($token->[2]{'src'}=~/\$/) {
-           $currentstring.=&mt('Variable image source');
+           $text = &mt('Variable image source');
         } elsif ($token->[2]{'src'}=~/\S/) {
 	   $currentstring .= '<img src="'.$src.'" alt="'.$alt.'" ';
 	   if ($width) { $currentstring.=' width="'.$width.'" '; }
 	   if ($height) { $currentstring.=' height="'.$height.'" '; }
-	   $currentstring .= ' />';
+	   $currentstring .= ' id="previewimg_'.$element.'" />';
         } else {
-           $currentstring.=&mt("No image source specified");
+           $text = &mt("No image source specified");
         }
+        $currentstring .= ' <span id="showimg_'.$element.'">'.$text.'</span>';
     } elsif ($target eq 'modified') {
 	my ($osrc,$owidth,$oheight)=
 	    ($token->[2]{'src'},$token->[2]{'width'},$token->[2]{'height'});
@@ -3273,12 +3263,12 @@ sub end_externallink {
     return $currentstring;
 }
 
-#-- <blankspace height="">
+#-- <blankspace heigth="">
 sub start_blankspace {
     my ($target,$token,$tagstack,$parstack,$parser,$safeeval) = @_;
     my $currentstring = &end_p();	# closes off any unclosed <p>
     if ($target eq 'tex') {
-	my $howmuch = &Apache::lonxml::get_param('height',$parstack,$safeeval,undef,1);
+	my $howmuch = &Apache::lonxml::get_param('heigth',$parstack,$safeeval,undef,1);
 	$currentstring .= '\vskip '.$howmuch.' ';
     }
     return $currentstring;
@@ -4284,10 +4274,10 @@ sub resize_image {
 	    $height_param=$TeXwidth/$old_width_param*$height_param;
 	}
     } elsif ($TeXheight) {
+	$height_param = $TeXheight;
 	if ($height_param) {
 	    $width_param  = $TeXheight/$height_param*$width_param;
 	}
-	$height_param = $TeXheight;
     } elsif ($width) {
 	my $old_width_param=$width_param;
 	$width_param = $width*$scaling;
@@ -4466,17 +4456,17 @@ sub LATEX_length {
     $garbage=~s/^\s+(\S.*)/$1/;#space before 
     $garbage=~s/(.*\S)\s+$/$1/;#space after 
     $garbage=~s/(\s)+/$1/;#only one space
-    $garbage=~s/(\\begin\{([^\}]+)}|\\end\{([^\}]+)})//g;#remove LaTeX \begin{...} and \end{...}
-    $garbage=~s/(\$\_\{|\$\_|\$\^\{|\$\^|\}\$)//g;#remove $_{,$_,$^{,$^,}$
+    $garbage=~s/(\\begin{([^\}]+)}|\\end{([^\}]+)})//g;#remove LaTeX \begin{...} and \end{...}
+    $garbage=~s/(\$\_\{|\$\_|\$\^{|\$\^|\}\$)//g;#remove $_{,$_,$^{,$^,}$
     $garbage=~s/([^\\])\$/$1/g;#$
-    $garbage=~s/(\\ensuremath\{\_\{|\\ensuremath\{\_|\\ensuremath\{\^\{|\\ensuremath\{\^|\})//g;#remove \ensuremath{...}
+    $garbage=~s/(\\ensuremath\{\_\{|\\ensuremath\{\_|\\ensuremath\{\^{|\\ensuremath\{\^|\})//g;#remove \ensuremath{...}
    $garbage=~s/(\\alpha|\\beta|\\gamma|\\delta|\\epsilon|\\verepsilon|\\zeta|\\eta|\\theta|\\vartheta|\\iota|\\kappa|\\lambda|\\mu|\\nu|\\xi|\\pi|\\varpi|\\rho|\\varrho|\\sigma|\\varsigma|\\tau|\\upsilon|\\phi|\\varphi|\\chi|\\psi|\\omega|\\Gamma|\\Delta|\\Theta|\\Lambda|\\Xi|\\Pi|\\Sigma|\\Upsilon|\\Phi|\\Psi|\\Omega)/1/g;
     $garbage=~s/(\\pm|\\mp|\\times|\\div|\\cdot|\\ast|\\star|\\dagger|\\ddagger|\\amalg|\\cap|\\cup|\\uplus|\\sqcap|\\sqcup|\\vee|\\wedge|\\oplus|\\ominus|\\otimes|\\circ|\\bullet|\\diamond|\\lhd|\\rhd|\\unlhd|\\unrhd|\\oslash|\\odot|\\bigcirc|\\Box|\\Diamond|\\bigtriangleup|\\bigtriangledown|\\triangleleft|\\triangleright|\\setminus|\\wr)/1/g;
     $garbage=~s/(\\le|\\ll|\\leq|\\ge|\\geq|\\gg|\\neq|\\doreq|\\sim|\\simeq|\\subset|\\subseteq|\\sqsubset|\\sqsubseteq|\\in|\\vdash|\\models|\\supset|\\supseteq|\\sqsupset|\\sqsupseteq|\\ni|\\dash|\\perp|\\approx|\\cong|\\equiv|\\propto|\\prec|\\preceq|\\parallel|\\asymp|\\smile|\\frown|\\bowtie|\\succ|\\succeq|\\mid)/1/g;
     $garbage=~s/(\\not<|\\\\not\\le|\\not\\prec|\\not\\preceq|\\not\\subset|\\not\\subseteq|\\not\\sqsubseteq|\\not\\in|\\not>|\\not\\ge|\\not\\succ|\\notsucceq|\\not\\supset|\\notsupseteq|\\not\\sqsupseteq|\\notin|\\not=|\\not\\equiv|\\not\\sim|\\not\\simeq|\\not\\approx|\\not\\cong|\\not\\asymp)/1/g;
     $garbage=~s/(\\leftarrow|\\gets|\\Leftarrow|\\rightarrow|\\to|\\Rightarrow|\\leftrightarrow|\\Leftrightarrow|\\mapsto|\\hookleftarrow|\\leftharpoonup|\\leftkarpoondown|\\rightleftharpoons|\\longleftarrow|\\Longleftarrow|\\longrightarrow|\\Longrightarrow|\\longleftrightarrow|\\Longleftrightarrow|\\longmapsto|\\hookrightarrow|\\rightharpoonup|\\rightharpoondown|\\uparrow|\\Uparrow|\\downarrow|\\Downarrow|\\updownarrow|\\Updownarrow|\\nearrow|\\searrow|\\swarrow|\\nwarrow)/11/g;
     $garbage=~s/(\\aleph|\\hbar|\\imath|\\jmath|\\ell|\\wp|\\Re|\\Im|\\mho|\\prime|\\emptyset|\\nabla|\\surd|\\partial|\\top|\\bot|\\vdash|\\dashv|\\forall|\\exists|\\neg|\\flat|\\natural|\\sharp|\\\||\\angle|\\backslash|\\Box|\\Diamond|\\triangle|\\clubsuit|\\diamondsuit|\\heartsuit|\\spadesuit|\\Join|\\infty)/11/g;
-    $garbage=~s/(\\hat\{([^}]+)}|\\check\{([^}]+)}|\\dot\{([^}]+)}|\\breve\{([^}]+)}|\\acute\{([^}]+)}|\\ddot\{([^}]+)}|\\grave\{([^}]+)}|\\tilde\{([^}]+)}|\\mathring\{([^}]+)}|\\bar\{([^}]+)}|\\vec\{([^}]+)})/$1/g;
+    $garbage=~s/(\\hat{([^}]+)}|\\check{([^}]+)}|\\dot{([^}]+)}|\\breve{([^}]+)}|\\acute{([^}]+)}|\\ddot{([^}]+)}|\\grave{([^}]+)}|\\tilde{([^}]+)}|\\mathring{([^}]+)}|\\bar{([^}]+)}|\\vec{([^}]+)})/$1/g;
     #remove some other LaTeX command
     $garbage=~s|\\(\w+)\\|\\|g;	 
     $garbage=~s|\\(\w+)(\s*)|$2|g;	 	 
@@ -4578,34 +4568,40 @@ sub latex_header {
 	($mode eq 'batchmode')) {$currentstring .='\batchmode';} 
     $currentstring .= '\newcommand{\keephidden}[1]{}'.
 	'\renewcommand{\deg}{$^{\circ}$}'.
-	'\usepackage{multirow}'."\n".
-	'\usepackage{longtable}'."\n".
-	'\usepackage{textcomp}'."\n".
-	'\usepackage{makeidx}'."\n".
-	'\usepackage[dvips]{graphicx}'."\n".
-	'\usepackage{wrapfig}'."\n".
-	'\usepackage{picins}'."\n".
+	'\usepackage{multirow}'.
+	'\usepackage{longtable}'.
+	'\usepackage{textcomp}'.
+	'\usepackage{makeidx}'.
+	'\usepackage[dvips]{graphicx}'.
+	'\usepackage{wrapfig}'.
+	'\usepackage{picins}'.
 	'\usepackage[T1]{fontenc}'."\n".
 	'\usepackage{lmodern}'."\n".
 	'\usepackage[postscript]{ucs}'."\n".
 	'\usepackage[utf8x]{inputenc}'."\n".
-	'\usepackage{pifont}'."\n".
+	'\usepackage{pifont}' ."\n".
 	'\usepackage{latexsym}'."\n".
-	'\usepackage{epsfig}'."\n".
-	'\usepackage{xtab}'."\n".
-	'\usepackage{tabularx}'."\n".
-	'\usepackage{booktabs}'."\n".
-	'\usepackage{array}'."\n".
-	'\usepackage{colortbl}'."\n".
-	'\usepackage{xcolor}'."\n".
-	'\usepackage{calc}'."\n".
-	'\usepackage{amsmath}'."\n".
-	'\usepackage{soul}'."\n".
-	'\usepackage{amssymb}'."\n".
-	'\usepackage{amsfonts}'."\n".
-	'\usepackage{amsthm}'."\n".
-	'\usepackage{amscd}'."\n".
-	'\usepackage{actuarialangle}'."\n";
+	'\usepackage{epsfig}'.
+	"\\usepackage{xtab}\n".
+	"\\usepackage{tabularx}\n".
+	"\\usepackage{booktabs}\n".
+	"\\usepackage{array}\n".
+	"\\usepackage{colortbl}\n".
+	"\\usepackage{xcolor}\n".
+	'\usepackage{calc}'.
+	'\usepackage{amsmath}'.
+	'\usepackage{soul}'.
+	'\usepackage{amssymb}'.
+	'\usepackage{amsfonts}'.
+	'\usepackage{amsthm}'.
+	'\usepackage{amscd}'
+        .'\usepackage{picins}\usepackage{calc}'."\n". # From lonprintout.pm
+	'\usepackage[T1]{fontenc}'."\n".
+	'\usepackage{lmodern}'."\n".
+	'\usepackage[postscript]{ucs}'."\n".
+	'\usepackage[utf8x]{inputenc}'."\n".
+	'\usepackage{pifont}'  . "\n";
+	
     if($env{'form.pdfFormFields'} eq 'yes') {
 	$currentstring .= '\usepackage{hyperref}'.
 	    '\usepackage{eforms}'.