--- loncom/html/adm/help/tex/Authoring_Library_Scripts.tex	2016/08/20 14:52:57	1.4
+++ loncom/html/adm/help/tex/Authoring_Library_Scripts.tex	2017/01/19 21:12:45	1.5
@@ -15,21 +15,21 @@ into a problem file. \index{library}\ind
 \noindent Library file:
 \begin{verbatim}
 <library>
-<script type="loncapa/perl">
-@alpha=('A','B','C','D',);
-$seed=&random(1,1000000,1);
-@alpha=&random_permutation($seed,@alpha); #scramble order
-$letter = $alpha[0]; #select first element
-</script>
+  <script type="loncapa/perl">
+    @alpha=('A','B','C','D',);
+    $seed=&random(1,1000000,1);
+    @alpha=&random_permutation($seed,@alpha); #scramble order
+    $letter = $alpha[0]; #select first element
+  </script>
 </library>
 \end{verbatim}
 
 \noindent Problem file:
 \begin{verbatim}
 <problem>
-<import id="15">randomletter.library</import>
-<startouttext />The random letter is $letter.<endouttext />
-<!-- other problem tags could go here -->
+  <import id="15">randomletter.library</import>
+  <startouttext />The random letter is $letter.<endouttext />
+  <!-- other problem tags could go here -->
 </problem>
 \end{verbatim}
 
@@ -42,11 +42,11 @@ A portion of a script, such as a large d
 \noindent Library file:
 \begin{verbatim}
 <library>
-<script type="loncapa/perl">
-@alpha=('A','B','C','D',);
-$seed=&random(1,1000000,1);
-@alpha=&random_permutation($seed,@alpha); #scramble order
-</script>
+  <script type="loncapa/perl">
+    @alpha=('A','B','C','D',);
+    $seed=&random(1,1000000,1);
+    @alpha=&random_permutation($seed,@alpha); #scramble order
+  </script>
 </library>
 \end{verbatim}
 
@@ -54,12 +54,12 @@ $seed=&random(1,1000000,1);
 script calculations can be done using variables from the library file.)
 \begin{verbatim}
 <problem>
-<import id="15">randomletter.library</import>
-<script type="loncapa/perl">
-$letter = $alpha[0];
-</script>
-<startouttext />The random letter is $letter.<endouttext />
-<!-- other problem tags could go here. -->
+  <import id="15">randomletter.library</import>
+  <script type="loncapa/perl">
+    $letter = $alpha[0];
+  </script>
+  <startouttext />The random letter is $letter.<endouttext />
+  <!-- other problem tags could go here. -->
 </problem>
 \end{verbatim}
 
@@ -80,14 +80,15 @@ some arguments: \$eq,`x',`y',`z' in the
 
 \begin{verbatim}
 <problem>
-<import id="15">/res/msu/raeburn/cleaneq.library</import>
+  <import id="15">/res/msu/raeburn/cleaneq.library</import>
 
-<script type="loncapa/perl">
-$eq = "1x + 0y +-7z --3";
-$eq2 = &cleaneq($eq,'x','y','z');</script>
-<startouttext />Here is an example equation:<br />
-Without cleaneq: $eq<br />
-With cleaneq: $eq2<endouttext />
+  <script type="loncapa/perl">
+    $eq = "1x + 0y +-7z --3";
+    $eq2 = &cleaneq($eq,'x','y','z');
+  </script>
+  <startouttext />Here is an example equation:<br />
+  Without cleaneq: $eq<br />
+  With cleaneq: $eq2<endouttext />
 </problem>
 \end{verbatim}
 
@@ -99,19 +100,19 @@ The .library file
 hold the all content that would normally appear inside the $<$part$>$ tag.
 \begin{verbatim}
 <part id="11">
-<randomlist show="1">
-<import id="12">sample1.library< /import>
-<import id="13">sample2.library< /import>
-<import id="14">sample3.library< /import>
-< /randomlist>
-< /part>
+  <randomlist show="1">
+    <import id="12">sample1.library</import>
+    <import id="13">sample2.library</import>
+    <import id="14">sample3.library</import>
+  </randomlist>
+</part>
 <part id="15">
-<randomlist show="1">
-<import id="16">sample4.library< /import>
-<import id="17">sample5.library< /import>
-<import id="18">sample6.library< /import>
-< /randomlist>
-< /part>
+  <randomlist show="1">
+    <import id="16">sample4.library</import>
+    <import id="17">sample5.library</import>
+    <import id="18">sample6.library</import>
+  </randomlist>
+</part>
 \end{verbatim}
 
 Note: when using $<$randomlist$>$ as shown above, all students will work