Docs update.

Author: kpeeters

tests/programming.cdb

@@ -258,4 +258,14 @@ def test11():
      print("Test 11 passed")
 
 test11()
+
+def test12():
+   __cdbkernel__ = create_scope()
+   sub:=3 q;
+   ex:=A^{@(sub)};
+   tst:= A^{3*q} - @(ex);
+   assert(tst==0)
+   print("Test 12 passed")
+
+test12()
 

web2/CMakeLists.txt

@@ -294,6 +294,10 @@ add_custom_command(
    ARGS     the_cadabra_book.tex
    COMMAND  pdflatex
    ARGS     the_cadabra_book.tex
+   COMMAND  cp
+   ARGS     the_cadabra_book.pdf ${CMAKE_SOURCE_DIR}/web2/cadabra2/source
    WORKING_DIRECTORY ${BOOKOUTDIR}
    COMMENT  "Creating the_cadabra_book.pdf")
 add_custom_target(book ALL echo -n DEPENDS ${BOOKOUTDIR}/the_cadabra_book.pdf)
+
+

web2/cadabra2/source/help.html

@@ -19,13 +19,19 @@ <h2>Forum</h2>
 <h2>Reference guide</h2>
 <p>
   This reference guide is the place to go for a detailed specification
-  of how Cadabra works. If you prefer to learn by example, you are
-  better off with the <a href="tutorials.html">tutorials</a>. Also
-  don't forget to have a look at Leo Brewin's
+  of how Cadabra works. You can browse it online or download the lot
+  as a single PDF file by clicking on the book cover. If you prefer to
+  learn by example, you are better off with
+  the <a href="tutorials.html">tutorials</a>. Also don't forget to
+  have a look at Leo Brewin's
   excellent <a href="papers.html#brewin">introductory papers on
   Cadabra</a>.
 
-  This guide is a translation of the one for 1.x, and still work-in-progress.
+  This guide is a translation of the one for 1.x, and still
+  work-in-progress.
+  <div class="splash_image book_cover">
+	 <a href="/the_cadabra_book.pdf"><img src="/static/images/the_cadabra_book.png" alt="[cadabra book cover]"/></a>
+  </div>
   <ol class="table_of_contents">
 	 <li>The input format
 		<ol>

web2/cadabra2/source/static/styles/cadabra-web.css

@@ -265,6 +265,12 @@ div.icon_background:hover svg path {
 	 fill: white;
 }
 
+/* Book */
+
+div.book_cover {
+    width: 33%;
+    border: 1px solid #777;
+}
 
 /* Notebooks */