# This makefile will build the new XML and XSLT routines.
+# This module will not work without libxml2, but it will work without libxslt.
+# To build without libxslt, run "gmake USE_LIBXSLT=0", or comment out the
+# following line:
+USE_LIBXSLT = 1
+
MODULE_big = pgxml
-# Remove xslt_proc.o from the following line if you don't have libxslt
OBJS = xpath.o xslt_proc.o
-# Remove -lxslt from the following line if you don't have libxslt.
+PG_CPPFLAGS := $(shell xml2-config --cflags)
+
+ifeq ($(USE_LIBXSLT),1)
+PG_CPPFLAGS += -DUSE_LIBXSLT
SHLIB_LINK = -lxslt -lxml2
+else
+SHLIB_LINK = -lxml2
+endif
DATA_built = pgxml.sql
REGRESS = xml2
DOCS = README.xml2
-PG_CPPFLAGS := $(shell xml2-config --cflags)
-
ifdef USE_PGXS
PGXS = $(shell pg_config --pgxs)
include $(PGXS)
include $(top_builddir)/src/Makefile.global
include $(top_srcdir)/contrib/contrib-global.mk
endif
-
--- /dev/null
+--
+-- first, define the functions. Turn off echoing so that expected file
+-- does not depend on contents of pgxml.sql.
+--
+SET client_min_messages = warning;
+\set ECHO none
+RESET client_min_messages;
+select xslt_process(
+'<table xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
+
+<row>
+ <x>1</x>
+</row>
+
+<row>
+ <x>2</x>
+</row>
+
+<row>
+ <x>3</x>
+</row>
+
+<row>
+ <x>4</x>
+</row>
+
+<row>
+ <x>5</x>
+</row>
+
+</table>'::text,
+$$<xsl:stylesheet version="1.0"
+ xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
+<xsl:output method="xml" indent="yes" />
+<xsl:template match="*">
+ <xsl:copy>
+ <xsl:copy-of select="@*" />
+ <xsl:apply-templates />
+ </xsl:copy>
+</xsl:template>
+<xsl:template match="comment()|processing-instruction()">
+ <xsl:copy />
+</xsl:template>
+</xsl:stylesheet>
+$$::text);
+ERROR: xslt_process() is not available without libxslt
+CREATE TABLE xpath_test (id integer NOT NULL, t text);
+INSERT INTO xpath_test VALUES (1, '<doc><int>1</int></doc>');
+SELECT * FROM xpath_table('id', 't', 'xpath_test', '/doc/int', 'true')
+as t(id int4);
+ id
+----
+(0 rows)
+
+SELECT * FROM xpath_table('id', 't', 'xpath_test', '/doc/int', 'true')
+as t(id int4, doc int4);
+ id | doc
+----+-----
+ 1 | 1
+(1 row)
+
+create table articles (article_id integer, article_xml text, date_entered date);
+insert into articles (article_id, article_xml, date_entered)
+values (2, '<article><author>test</author><pages>37</pages></article>', now());
+SELECT * FROM
+xpath_table('article_id',
+ 'article_xml',
+ 'articles',
+ '/article/author|/article/pages|/article/title',
+ 'date_entered > ''2003-01-01'' ')
+AS t(article_id integer, author text, page_count integer, title text);
+ article_id | author | page_count | title
+------------+--------+------------+-------
+ 2 | test | 37 |
+(1 row)
+
+-- this used to fail when invoked a second time
+select xslt_process('<aaa/>',$$<xsl:stylesheet version="1.0"
+xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
+<xsl:template match="@*|node()">
+ <xsl:copy>
+ <xsl:apply-templates select="@*|node()"/>
+ </xsl:copy>
+ </xsl:template>
+</xsl:stylesheet>$$);
+ERROR: xslt_process() is not available without libxslt
+select xslt_process('<aaa/>',$$<xsl:stylesheet version="1.0"
+xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
+<xsl:template match="@*|node()">
+ <xsl:copy>
+ <xsl:apply-templates select="@*|node()"/>
+ </xsl:copy>
+ </xsl:template>
+</xsl:stylesheet>$$);
+ERROR: xslt_process() is not available without libxslt
+create table t1 (id integer, xml_data text);
+insert into t1 (id, xml_data)
+values
+(1, '<attributes><attribute name="attr_1">Some
+Value</attribute></attributes>');
+select xpath_string('/attributes/attribute[@name="attr_1"]/text()', xml_data)
+from t1;
+ xpath_string
+--------------
+
+(1 row)
+
AS 'MODULE_PATHNAME'
LANGUAGE 'c' WITH (isStrict);
-
CREATE OR REPLACE FUNCTION xpath_list(text,text) RETURNS text
AS 'SELECT xpath_list($1,$2,'','')' language 'SQL' WITH (isStrict);
-
-
-- Wrapper functions for nodeset where no tags needed.
-
CREATE OR REPLACE FUNCTION xpath_nodeset(text,text) RETURNS text AS
'SELECT xpath_nodeset($1,$2,'''','''')' language 'SQL' WITH (isStrict);
-
CREATE OR REPLACE FUNCTION xpath_nodeset(text,text,text) RETURNS text AS
'SELECT xpath_nodeset($1,$2,'''',$3)' language 'SQL' WITH (isStrict);
LANGUAGE 'c' WITH (isStrict);
-- XSLT functions
--- Delete from here to the end of the file if you are not compiling with
--- XSLT support.
-
CREATE OR REPLACE FUNCTION xslt_process(text,text,text) RETURNS text
AS 'MODULE_PATHNAME' LANGUAGE 'c' WITH (isStrict);
-- the function checks for the correct argument count
-
CREATE OR REPLACE FUNCTION xslt_process(text,text) RETURNS text
AS 'MODULE_PATHNAME' LANGUAGE 'c' WITH (isStrict);
#include "funcapi.h"
#include "miscadmin.h"
+#ifdef USE_LIBXSLT
+
/* libxml includes */
#include <libxml/xpath.h>
#include <libxslt/transform.h>
#include <libxslt/xsltutils.h>
+#endif /* USE_LIBXSLT */
+
/* externally accessible functions */
Datum xslt_process(PG_FUNCTION_ARGS);
+#ifdef USE_LIBXSLT
+
/* declarations to come from xpath.c */
extern void elog_error(const char *explain, bool force);
extern void pgxml_parser_init(void);
#define GET_STR(textp) DatumGetCString(DirectFunctionCall1(textout, PointerGetDatum(textp)))
+#endif /* USE_LIBXSLT */
+
PG_FUNCTION_INFO_V1(xslt_process);
Datum
xslt_process(PG_FUNCTION_ARGS)
{
-
+#ifdef USE_LIBXSLT
const char *params[MAXPARAMS + 1]; /* +1 for the terminator */
xsltStylesheetPtr stylesheet = NULL;
text *paramstr;
text *tres;
-
if (fcinfo->nargs == 3)
{
paramstr = PG_GETARG_TEXT_P(2);
VARATT_SIZEP(tres) = reslen + VARHDRSZ;
PG_RETURN_TEXT_P(tres);
+
+#else /* !USE_LIBXSLT */
+
+ ereport(ERROR,
+ (errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+ errmsg("xslt_process() is not available without libxslt")));
+ PG_RETURN_NULL();
+
+#endif /* USE_LIBXSLT */
}
+#ifdef USE_LIBXSLT
static void
parse_params(const char **params, text *paramstr)
params[i] = NULL;
}
+
+#endif /* USE_LIBXSLT */
projects / users / c2main / postgres.git / commitdiff