MEI support: annotation title and eutil:getLocalizedTitle

[bwbohl]

When converting an annotation to JSON the annotation module call the generic eutil:getLocalizedTitle function:

Edirom-Online/add/data/xqm/annotation.xqm

Line 82 in ab873e0

let $genericTitle := eutil:getLocalizedTitle($anno, $lang)

The function is quite generic and returns the text of a title element:

Edirom-Online/add/data/xqm/util.xqm

Lines 107 to 126 in ab873e0

	declare function eutil:getLocalizedTitle($node as node(), $lang as xs:string?) as xs:string {
	let $namespace := eutil:getNamespace($node)
	let $titleMEI := if ($lang != '' and $lang = $node/mei:title/@xml:lang)
	then ($node/mei:title[@xml:lang = $lang]//text() => string-join() => normalize-space())
	else (($node//mei:title)[1]//text() => string-join() => normalize-space())
	let $titleTEI := if ($lang != '' and $lang = $node/tei:title/@xml:lang)
	then $node/tei:title[@xml:lang = $lang]/text()
	else $node/tei:title[1]/text()
	return
	if ($namespace = 'mei')
	then($titleMEI)
	else if ($namespace = 'tei')
	then($titleTEI)
	else('unknown')
	};

Concerning mei:annot the presence of mei:title already was a workaround in Edirom Online based on MEI 2.1.1 (2013( due to the unavailability of mei:head in mei:annot, as by definition mei:title is (and was) defined as: “Title of a bibliographic entity.”

If applicable, we should look for mei:head in this context.