Add sample text search dictionary templates and parsers, to replace the

hard-to-maintain textual examples currently in the SGML docs.  From
Sergey Karpov.

contrib/test_parser/test_parser.sql.in

@@ -0,0 +1,36 @@
+-- $PostgreSQL: pgsql/contrib/test_parser/test_parser.sql.in,v 1.1 2007/10/15 21:36:50 tgl Exp $
+
+-- Adjust this setting to control where the objects get created.
+SET search_path = public;
+
+BEGIN;
+
+CREATE FUNCTION testprs_start(internal, int4)
+    RETURNS internal
+    AS 'MODULE_PATHNAME'
+    LANGUAGE C STRICT;
+
+CREATE FUNCTION testprs_getlexeme(internal, internal, internal)
+    RETURNS internal
+    AS 'MODULE_PATHNAME'
+    LANGUAGE C STRICT;
+
+CREATE FUNCTION testprs_end(internal)
+    RETURNS void
+    AS 'MODULE_PATHNAME'
+    LANGUAGE C STRICT;
+
+CREATE FUNCTION testprs_lextype(internal)
+    RETURNS internal
+    AS 'MODULE_PATHNAME'
+    LANGUAGE C STRICT;
+
+CREATE TEXT SEARCH PARSER testparser (
+    START    = testprs_start,
+    GETTOKEN = testprs_getlexeme,
+    END      = testprs_end,
+    HEADLINE = pg_catalog.prsd_headline,
+    LEXTYPES = testprs_lextype
+);
+
+END;