Convert documentation to DocBook XML

Since some preparation work had already been done, the only source
changes left were changing empty-element tags like <xref linkend="foo">
to <xref linkend="foo"/>, and changing the DOCTYPE.

The source files are still named *.sgml, but they are actually XML files
now.  Renaming could be considered later.

In the build system, the intermediate step to convert from SGML to XML
is removed.  Everything is build straight from the source files again.
The OpenSP (or the old SP) package is no longer needed.

The documentation toolchain instructions are updated and are much
simpler now.

Peter Eisentraut, Alexander Lakhin, Jürgen Purtz

1 files changed, 11 insertions, 11 deletions

diff --git a/doc/src/sgml/ref/alter_function.sgml b/doc/src/sgml/ref/alter_function.sgml
index fd35e98a886..196d2dde0c0 100644
--- a/doc/src/sgml/ref/alter_function.sgml
+++ b/doc/src/sgml/ref/alter_function.sgml
@@ -171,7 +171,7 @@ ALTER FUNCTION <replaceable>name</replaceable> [ ( [ [ <replaceable class="param
        null. <literal>RETURNS NULL ON NULL INPUT</literal> or
        <literal>STRICT</literal> changes the function so that it is not
        invoked if any of its arguments are null; instead, a null result
-       is assumed automatically.  See <xref linkend="sql-createfunction">
+       is assumed automatically.  See <xref linkend="sql-createfunction"/>
        for more information.
       </para>
      </listitem>
@@ -185,7 +185,7 @@ ALTER FUNCTION <replaceable>name</replaceable> [ ( [ [ <replaceable class="param
      <listitem>
       <para>
        Change the volatility of the function to the specified setting.
-       See <xref linkend="sql-createfunction"> for details.
+       See <xref linkend="sql-createfunction"/> for details.
       </para>
     </listitem>
    </varlistentry>
@@ -198,7 +198,7 @@ ALTER FUNCTION <replaceable>name</replaceable> [ ( [ [ <replaceable class="param
      <para>
       Change whether the function is a security definer or not. The
       key word <literal>EXTERNAL</literal> is ignored for SQL
-      conformance. See <xref linkend="sql-createfunction"> for more information about
+      conformance. See <xref linkend="sql-createfunction"/> for more information about
       this capability.
      </para>
     </listitem>
@@ -210,7 +210,7 @@ ALTER FUNCTION <replaceable>name</replaceable> [ ( [ [ <replaceable class="param
     <listitem>
      <para>
       Change whether the function is deemed safe for parallelism.
-      See <xref linkend="sql-createfunction"> for details.
+      See <xref linkend="sql-createfunction"/> for details.
      </para>
     </listitem>
    </varlistentry>
@@ -220,7 +220,7 @@ ALTER FUNCTION <replaceable>name</replaceable> [ ( [ [ <replaceable class="param
     <listitem>
      <para>
       Change whether the function is considered leakproof or not.
-      See <xref linkend="sql-createfunction"> for more information about
+      See <xref linkend="sql-createfunction"/> for more information about
       this capability.
      </para>
     </listitem>
@@ -232,7 +232,7 @@ ALTER FUNCTION <replaceable>name</replaceable> [ ( [ [ <replaceable class="param
      <listitem>
       <para>
        Change the estimated execution cost of the function.
-       See <xref linkend="sql-createfunction"> for more information.
+       See <xref linkend="sql-createfunction"/> for more information.
       </para>
      </listitem>
    </varlistentry>
@@ -243,7 +243,7 @@ ALTER FUNCTION <replaceable>name</replaceable> [ ( [ [ <replaceable class="param
      <listitem>
       <para>
        Change the estimated number of rows returned by a set-returning
-       function.  See <xref linkend="sql-createfunction"> for more information.
+       function.  See <xref linkend="sql-createfunction"/> for more information.
       </para>
      </listitem>
    </varlistentry>
@@ -266,8 +266,8 @@ ALTER FUNCTION <replaceable>name</replaceable> [ ( [ [ <replaceable class="param
        </para>
 
        <para>
-        See <xref linkend="sql-set"> and
-        <xref linkend="runtime-config">
+        See <xref linkend="sql-set"/> and
+        <xref linkend="runtime-config"/>
         for more information about allowed parameter names and values.
        </para>
       </listitem>
@@ -357,8 +357,8 @@ ALTER FUNCTION check_password(text) RESET search_path;
   <title>See Also</title>
 
   <simplelist type="inline">
-   <member><xref linkend="sql-createfunction"></member>
-   <member><xref linkend="sql-dropfunction"></member>
+   <member><xref linkend="sql-createfunction"/></member>
+   <member><xref linkend="sql-dropfunction"/></member>
   </simplelist>
  </refsect1>
 </refentry>