Parsovacie funkcie

PARSETEXT#

Vráti časť vstupného textu na základe ľavých a pravých vyhľadávacích vzorov.

PARSETEXT( input, left_pattern, right_pattern)

Príklady:

PARSETEXT(“Lorem ipsum dolor sit amet”, “ipsum”, “amet”) (Result is “dolor sit”)
PARSETEXT(“<temp>12.2</temp>”, “<temp>”, “</temp”) (Result is 12.2)
PARSETEXT(“<temp>12.2</temp>”, “<temp>”) (Result is 12.2)
PARSETEXT(“status:ok,error:none”, “status:”) (Result is “ok”)
PARSETEXT(“Lorem ipsum dolor sit amet”, “ipsum”) (Result is “dolor”)
PARSETEXT(“Lorem ipsum dolor sit amet”, “ipsum…sit”) (Result is “amet”)
PARSETEXT(“Lorem ipsum dolor sit amet consectetur adipiscing”, “ipsum…sit”, “adipiscing”) (Result is “amet consectetur”)

PARSEJSON#

Vráti hodnotu prvku zo stringu vo formáte JSON. Prvok je určený pomocou JSON path.

PARSEJSON( json_string, json_path, ignore_error)

Príklady:

S json =

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{
  "firstName": "John",
  "lastName" : "doe",
  "age" : 26,
  "address"  : {
    "streetAddress": "naist street",
    "city"         : "Nara",
    "postalCode"   : "630-0192"
  }
}

PARSEJSON(json, “firstName”)			(Result is “John”)
PARSEJSON(json, “address.city”)		(Result is “Nara”)
PARSEJSON(json, “address.country”)		(error)
PARSEJSON(json, “address.country”, 0)		(error)
PARSEJSON(json, “address.city”, 1)		(Result is null)

PARSEXML#

Vráti hodnotu prvku zo stringu XML. Prvok je určený pomocou XML path.

PARSEXML( xml_string, xml_path)

Príklady:

S xml=

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<?xml version="1.0"?>
<catalog>
	<book id="bk101">
		<author>Gambardella, Matthew</author>
		<title>XML Developer's Guide</title>
		<genre>Computer</genre>
		<price>44.95</price>
		<publish_date>2000-10-01</publish_date>
		<description>An in-depth look at creating...</description>
	</book>
	<book id="bk102">
		<author>Ralls, Kim</author>
		<title>Midnight Rain</title>
		<genre>Fantasy</genre>
		<price>5.95</price>
		<publish_date>2000-12-16</publish_date>
		<description>A former architect battles…</description>
	</book>
</catalog>

PARSEXML(xml, "//catalog/book[1]/price") (Result is 44.95)
PARSEXML(xml, "//book[2]/title") (Result is "Midnight Rain")
PARSEXML(xml, "//book[1]/@id") (Result is "bk101")
PARSEXML(xml, "//catalog/magazine[1]/price") (Result is null)

Ak xml obsahuje názvové priestory, musíte úplne špecifikovať názvy prvkov s názvovými priestormi, napr. PARSEXML(xml, “//DIDL-Lite:container[dc:title=‘My Playlist’’]/DIDL-Lite:res”);