Hi,
wondering how to unmarshall the xml below (also available
here https://play.golang.org/p/QtZwKmrn8HM) into a tree. The challenge is
that each element can nest 0 or more *ordered* child elements which can be
of different types (eg text, group, choose, macro etc). I tried
unmarshalling into a struct which embed the following type
type RenderingElement struct {
Names []Names `xml:"names"`
Date []Date `xml:"date"`
Label []Label `xml:"label"`
Text []Text `xml:"text"`
Number []Number `xml:"number"`
Choose []Choose `xml:"choose"`
Group []Group `xml:"group"`
}
This is simple but the problem is that if an element has children of
different types eg text and group I have no way of telling their order and
the order is important (essentially the xml codes for a formatting program).
Any tips or example code on how to unmarshall this xml while retaining its
nested ordered structure?
Thanks,
const src = `<layout suffix=".">
<text variable="citation-number" suffix=". "/>
<group delimiter=", ">
<text macro="author"/>
<choose>
<if type="thesis">
<group delimiter=" ">
<group delimiter=", ">
<group>
<!-- Always print, even if no university given -->
<text value="thesis"/>
</group>
<text macro="publisher"/>
</group>
<text macro="issued" prefix="(" suffix=")"/>
</group>
</if>
<else-if type="bill book graphic legal_case legislation motion_picture
song chapter paper-conference" match="any">
<group delimiter=" ">
<choose>
<if type="chapter paper-conference" match="any">
<group delimiter=", ">
<group delimiter=" ">
<text term="in"/>
<text variable="container-title" font-style="italic"/>
</group>
<text macro="editor"/>
</group>
</if>
<else>
<text macro="title"/>
</else>
</choose>
<group prefix="(" suffix=")" delimiter="; ">
<group delimiter=", ">
<text macro="publisher"/>
<text macro="edition"/>
<text macro="issued"/>
</group>
<text variable="URL"/>
</group>
</group>
<group delimiter=" of ">
<group>
<label variable="volume" form="short" suffix=" "/>
<number variable="volume"/>
</group>
<text variable="collection-title" font-style="italic"/>
</group>
<choose>
<if type="chapter paper-conference" match="any">
<text macro="pages"/>
</if>
</choose>
</else-if>
<else-if type="article-journal">
<choose>
<if variable="page">
<choose>
<if is-numeric="page" match="none">
<group>
<group delimiter=", ">
<text variable="container-title" form="short" font-style="italic"/>
<group>
<text term="in press"/>
</group>
</group>
<text macro="access"> hello </text>
</group>
</if>
<else>
<text macro="article-details"/>
</else>
</choose>
</if>
<else>
<text macro="article-details"/>
</else>
</choose>
</else-if>
<else-if type="report">
<group>
<group delimiter=", ">
<text variable="title" quotes="true"/>
<text variable="collection-title" font-style="italic"/>
</group>
<group prefix=" (" suffix=")" delimiter=", ">
<group delimiter=" ">
<text variable="genre" form="short"/>
<number variable="number"/>
</group>
<text variable="publisher"/>
<text variable="publisher-place"/>
<text macro="issued"/>
</group>
</group>
<text macro="pages"/>
<text macro="access"/>
</else-if>
<else>
<group>
<group delimiter=", ">
<text macro="editor"/>
<group delimiter=". ">
<text macro="title"/>
<text form="short" variable="container-title" font-style="italic"/>
<text variable="volume" font-weight="bold"/>
</group>
</group>
<text macro="issued" prefix=" (" suffix=")"/>
</group>
<text macro="pages"/>
<text macro="access"/>
</else>
</choose>
</group>
</layout>
`
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