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start = publimeta

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publimeta = element publimeta {

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   publimeta.attributes,

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   publimeta.content

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}

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publimeta.attributes =

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   version.attribute

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version.attribute = attribute version { "1.0" }

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publimeta.content =

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   metadatas

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# =============================================================================

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#                                    TOP LEVEL

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# =============================================================================

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# ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ metadatas ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

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metadatas = element metadatas { metadatas.content }

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metadatas.content =

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   metadata+

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# ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ metadata ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

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metadata = element metadata { metadata.attributes, metadata.content }

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metadata.attributes =

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   metadata.for.attribute

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 & lang.attribute?

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metadata.for.attribute = attribute for { xsd:NMTOKEN }

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lang.attribute = attribute xml:lang { xsd:language }

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metadata.content =

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   (title & shorttitle? & subtitle*)?

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 & identifier*

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 & copyright*

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 & collection?

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 & contributors?

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 & date?

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 & keywordset?

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 & subjectset?

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 & abstract?

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 & price*

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# =============================================================================

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#                                  METADATA LEVEL

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# =============================================================================

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# ~~~~~~~~~~~~~~~~~~~~~~~ title, shorttitle, subtitle ~~~~~~~~~~~~~~~~~~~~~~~~~

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title = element title { title.content }

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shorttitle = element shorttitle { title.content }

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subtitle = element subtitle { title.content }

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title.content = inlines

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# ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ identifier ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

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# ~~~~~~ identifier

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identifier = element identifier {

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   (attribute type { "ean" }, for.attribute?, xsd:token {pattern = "\d{13}"})

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 | (attribute type { "uri" }, for.attribute?, xsd:anyURI)

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}

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for.attribute = attribute for { xsd:NCName }

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# ~~~~~~ identifier.ean

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identifier.ean = element identifier {

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   attribute type { "ean" }, for.attribute?, xsd:token {pattern = "\d{13}"}

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}

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# ~~~~~~ identifier.uri

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identifier.uri = element identifier {

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   attribute type { "uri" }, for.attribute?, xsd:anyURI

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}

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# ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ copyright ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

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copyright = element copyright { copyright.content }

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copyright.content = inlines

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# ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ collection ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

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collection = element collection { collection.content }

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collection.content = inlines

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# ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ contributors ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

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# ~~~~~~ contributors

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contributors = element contributors { contributors.content }

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contributors.content =

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   contributor+

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# ~~~~~~ contributor

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contributor = element contributor { contributor.content }

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contributor.content =

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   identifier.uri?,

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   (((firstname, secondname?)?, lastname) | label),

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   address?,

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   link?,

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   role+

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# ~~~~~~ firstname, secondname, lastname, label

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firstname = element firstname { firstname.content }

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secondname = element secondname { secondname.content }

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lastname = element lastname { lastname.content }

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label = element label { label.content }

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firstname.content = inlines

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secondname.content = inlines

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lastname.content = inlines

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label.content = inlines

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# ~~~~~~ address

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address = element address { address.content }

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address.content = inlines

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# ~~~~~~ role

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role = element role { role.content }

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role.content = "author" | "illustrator" | "publisher" | "packager"

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# ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ keyword & subject ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

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# ~~~~~~ keywordset

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keywordset = element keywordset { keywordset.content }

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keywordset.content = keyword+

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# ~~~~~~ keyword

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keyword = element keyword { keyword.content }

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keyword.content = mixed { sup*, sub* }

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# ~~~~~~ subjectset

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subjectset = element subjectset { subjectset.content }

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subjectset.content = subject+

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# ~~~~~~ subject

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subject = element subject { subject.content }

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subject.content = mixed { sup*, sub* }

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# ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ abstract ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

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abstract = element abstract { abstract.content }

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abstract.content =

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   p+

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# ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ price ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

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price = element price { price.attributes, price.content }

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price.attributes =

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   currency.attribute

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 & excluding_tax.attribute

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 & tax.attribute?

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 & territory.attribute?

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currency.attribute = attribute currency {

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   "EUR" | "USD" | "GBP" | "CAD" | "CHF" | "JPY" | "MXN" | "KRW" | "BRL"

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 | "INR" | "AUD" | "RUB" | "CNY" | "NOK" | "SEK" | "DKK" }

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excluding_tax.attribute = attribute excluding-tax { xsd:boolean }

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tax.attribute = attribute tax { xsd:float }

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territory.attribute = attribute territory { xsd:NMTOKENS }

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price.content = xsd:float

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# =============================================================================

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#                                 BLOCK LEVEL

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# =============================================================================

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# ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ p ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

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p = element p { p.content }

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p.content =

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   inlines

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# =============================================================================

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#                                 INLINE LEVEL

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# =============================================================================

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# ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ inlines ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

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inlines = mixed {

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   sup*

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 & sub*

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 & date*

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 & name*

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 & highlight*

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 & link*

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}

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# ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ sub, sup ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

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sup = element sup { inlines }

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sub = element sub { inlines }

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# ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ date ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

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date = element date { date.attributes, date.content }

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date.attributes =

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   date.value.attribute

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date.value.attribute = attribute value { xsd:date | xsd:gYearMonth | xsd:gYear }

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date.content = mixed { sup* }

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# ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ name ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

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name = element name { name.attributes, name.content }

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name.attributes =

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   name.of.attribute?

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name.of.attribute = attribute of {

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   "person" | "company" | "book" | "newspaper" | "party" | "painting"

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 | "movie" }

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name.content = mixed { sup* }

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# ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ highlight ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

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highlight = element highlight { highlight.content }

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highlight.content = inlines

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# ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ link ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

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link = element link { link.attributes, link.content }

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link.attributes =

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   uri.attribute

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uri.attribute = attribute uri { xsd:anyURI }

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link.content = mixed { sup* & sub* & date* & name* & highlight* }

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# =============================================================================

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#                               REMAP ATTRIBUTES

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# =============================================================================

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remap.attributes =

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   as.attribute?

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 & attributes.attribute?

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 & transform.attribute?

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as.attribute = attribute as { xsd:QName }

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attributes.attribute =

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   attribute attributes {list { (xsd:token {pattern = "\c+=\S+"})+ }}

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transform.attribute = attribute transform { xsd:anyURI }