fix last example. Add example of adding code blocks that are not shown in docbook output.

Original commit message from CVS:

* docs/manual/elements-api.xml:
* docs/manual/helloworld.xml:
* examples/manual/extract.pl:
fix last example.  Add example of adding code blocks that are not
shown in docbook output.

ChangeLog

@@ -1,3 +1,11 @@
+2004-12-15  Thomas Vander Stichele  <thomas at apestaart dot org>
+
+	* docs/manual/elements-api.xml:
+	* docs/manual/helloworld.xml:
+	* examples/manual/extract.pl:
+	  fix last example.  Add example of adding code blocks that are not
+	  shown in docbook output.
+
 2004-12-15  Thomas Vander Stichele  <thomas at apestaart dot org>
 
 	* docs/manual/dynamic.xml:

docs/manual/basics-helloworld.xml

@@ -16,8 +16,9 @@
     </para>
 
     <programlisting>
-/* example-begin helloworld.c */      
-#include &lt;gst/gst.h&gt;
+<!-- example-begin helloworld.c a -->
+<![CDATA[
+#include <gst/gst.h>
 
 int 
 main (int argc, char *argv[]) 
@@ -64,7 +65,8 @@ main (int argc, char *argv[])
 
   exit (0);
 }
-/* example-end helloworld.c */      
+]]>
+<!-- example-end helloworld.c a -->
     </programlisting>
 
     <para>

docs/manual/elements-api.xml

@@ -60,6 +60,12 @@ main (int argc, char *argv[])
 ]]>
 <!-- example-end elementmake.c b -->
     </programlisting>
+<!-- example-begin elementmake.c c -->
+<!--
+  /* Hi Ronald.  Block c is an example of a piece of code that will end up
+   * in the extracted code file, but is not shown in the docbook output */
+-->
+<!-- example-end elementmake.c c -->
     <para> 
 <function>gst_element_factory_make</function> is actually a shorthand
 for a combination of two functions.

docs/manual/helloworld.xml

@@ -16,8 +16,9 @@
     </para>
 
     <programlisting>
-/* example-begin helloworld.c */      
-#include &lt;gst/gst.h&gt;
+<!-- example-begin helloworld.c a -->
+<![CDATA[
+#include <gst/gst.h>
 
 int 
 main (int argc, char *argv[]) 
@@ -64,7 +65,8 @@ main (int argc, char *argv[])
 
   exit (0);
 }
-/* example-end helloworld.c */      
+]]>
+<!-- example-end helloworld.c a -->
     </programlisting>
 
     <para>

examples/manual/extract.pl

@@ -8,9 +8,7 @@
 
 # decodes xml by translating & < > back to what they should be
 # and also ignore
-# <![CDATA[
-# and
-# ]]>
+# <![CDATA[ and ]]> and <!-- and -->
 sub
 xml_decode ($)
 {
@@ -22,6 +20,8 @@ xml_decode ($)
 
   if ($input =~ /<!\[CDATA\[/) { $input = ""; }
   if ($input =~ /]]>/) { $input = ""; }
+  if ($input =~ /<!--/) { $input = ""; }
+  if ($input =~ /-->/) { $input = ""; }
 
   #print "Returning line $input";
   return $input;
@@ -72,7 +72,7 @@ open OUTPUT, ">$output";
 @block_ids = keys %blocks;
 foreach $block_id (sort @block_ids)
 {
-  print "Writing block with id $block_id\n";
+  print "Writing $output block $block_id\n";
   print OUTPUT $blocks{$block_id};
 }
 close OUTPUT;

tests/old/examples/manual/extract.pl

@@ -8,9 +8,7 @@
 
 # decodes xml by translating & < > back to what they should be
 # and also ignore
-# <![CDATA[
-# and
-# ]]>
+# <![CDATA[ and ]]> and <!-- and -->
 sub
 xml_decode ($)
 {
@@ -22,6 +20,8 @@ xml_decode ($)
 
   if ($input =~ /<!\[CDATA\[/) { $input = ""; }
   if ($input =~ /]]>/) { $input = ""; }
+  if ($input =~ /<!--/) { $input = ""; }
+  if ($input =~ /-->/) { $input = ""; }
 
   #print "Returning line $input";
   return $input;
@@ -72,7 +72,7 @@ open OUTPUT, ">$output";
 @block_ids = keys %blocks;
 foreach $block_id (sort @block_ids)
 {
-  print "Writing block with id $block_id\n";
+  print "Writing $output block $block_id\n";
   print OUTPUT $blocks{$block_id};
 }
 close OUTPUT;