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Attached is a patch that adds the function xml_encode_special_chars to 

the xml2 contrib module. It's against 8.0beta4. It's intended for
commit.

Markus Bertheau <twanger@bluetwanger.de>
This commit is contained in:
Bruce Momjian 2004-12-02 22:21:12 +00:00
parent 7af770d005
commit 1646586271
2 changed files with 32 additions and 0 deletions
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3
contrib/xml2/pgxml.sql.in
View File

@ -3,6 +3,9 @@
CREATE OR REPLACE FUNCTION xml_valid(text) RETURNS bool
AS 'MODULE_PATHNAME' LANGUAGE 'c' WITH (isStrict);
CREATE OR REPLACE FUNCTION xml_encode_special_chars(text) RETURNS text
AS 'MODULE_PATHNAME' LANGUAGE 'c' WITH (isStrict);
CREATE OR REPLACE FUNCTION xpath_string(text,text) RETURNS text
AS 'MODULE_PATHNAME' LANGUAGE 'c' WITH (isStrict);

29
contrib/xml2/xpath.c
View File

@ -40,6 +40,7 @@ static xmlXPathObjectPtr pgxml_xpath(text *document, xmlChar * xpath);
Datum xml_valid(PG_FUNCTION_ARGS);
Datum xml_encode_special_chars(PG_FUNCTION_ARGS);
Datum xpath_nodeset(PG_FUNCTION_ARGS);
Datum xpath_string(PG_FUNCTION_ARGS);
Datum xpath_number(PG_FUNCTION_ARGS);
@ -186,6 +187,34 @@ xml_valid(PG_FUNCTION_ARGS)
}
/* Encodes special characters (<, >, &, " and \r) as XML entities */
PG_FUNCTION_INFO_V1(xml_encode_special_chars);
Datum
xml_encode_special_chars(PG_FUNCTION_ARGS)
{
text *tin = PG_GETARG_TEXT_P(0);
text *tout;
int32 ressize;
xmlChar *ts, *tt;
ts = pgxml_texttoxmlchar(tin);
tt = xmlEncodeSpecialChars(NULL, ts);
pfree(ts);
ressize = strlen(tt);
tout = (text *) palloc(ressize + VARHDRSZ);
memcpy(VARDATA(tout), tt, ressize);
VARATT_SIZEP(tout) = ressize + VARHDRSZ;
xmlFree(tt);
PG_RETURN_TEXT_P(tout);
}
static xmlChar
*
pgxmlNodeSetToText(xmlNodeSetPtr nodeset,