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--SQL for XML parser
CREATE OR REPLACE FUNCTION xml_valid(text) RETURNS bool
AS 'MODULE_PATHNAME' LANGUAGE 'c' STRICT IMMUTABLE;
CREATE OR REPLACE FUNCTION xml_encode_special_chars(text) RETURNS text
AS 'MODULE_PATHNAME' LANGUAGE 'c' STRICT IMMUTABLE;
CREATE OR REPLACE FUNCTION xpath_string(text,text) RETURNS text
AS 'MODULE_PATHNAME' LANGUAGE 'c' STRICT IMMUTABLE;
CREATE OR REPLACE FUNCTION xpath_nodeset(text,text,text,text) RETURNS text
AS 'MODULE_PATHNAME' LANGUAGE 'c' STRICT IMMUTABLE;
CREATE OR REPLACE FUNCTION xpath_number(text,text) RETURNS float4
AS 'MODULE_PATHNAME' LANGUAGE 'c' STRICT IMMUTABLE;
CREATE OR REPLACE FUNCTION xpath_bool(text,text) RETURNS boolean
AS 'MODULE_PATHNAME' LANGUAGE 'c' STRICT IMMUTABLE;
-- List function
CREATE OR REPLACE FUNCTION xpath_list(text,text,text) RETURNS text
AS 'MODULE_PATHNAME'
LANGUAGE 'c' STRICT IMMUTABLE;
CREATE OR REPLACE FUNCTION xpath_list(text,text) RETURNS text
AS 'SELECT xpath_list($1,$2,'','')' language 'SQL' STRICT IMMUTABLE;
-- 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' STRICT IMMUTABLE;
CREATE OR REPLACE FUNCTION xpath_nodeset(text,text,text) RETURNS text AS
'SELECT xpath_nodeset($1,$2,'''',$3)' language 'SQL' STRICT IMMUTABLE;
-- Table function
CREATE OR REPLACE FUNCTION xpath_table(text,text,text,text,text) RETURNS setof record
AS 'MODULE_PATHNAME'
LANGUAGE 'c' STRICT STABLE;
-- XSLT functions
CREATE OR REPLACE FUNCTION xslt_process(text,text,text) RETURNS text
AS 'MODULE_PATHNAME' LANGUAGE 'c' STRICT VOLATILE;
-- the function checks for the correct argument count
CREATE OR REPLACE FUNCTION xslt_process(text,text) RETURNS text
AS 'MODULE_PATHNAME' LANGUAGE 'c' STRICT IMMUTABLE;
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