XML Templates

Leaf Templates

• .Ticker

  • <!ELEMENT Ticker #PCDATA>
  • <Ticker>IBM</Ticker>

• .Ticker ( .Symbol^ # `stuff )

  • <!ELEMENT Ticker `stuff><!ATTLIST Symbol CDATA #IMPLIED>
  • <Ticker Symbol=“IBM”>`stuff</Ticker>

• .Ticker!Symbol

  • <!ELEMENT Ticker EMPTY><!ATTLIST Symbol CDATA #IMPLIED>
  • <Ticker Symbol=“IBM”/>

List Templates

• .Portfolio*.templ

  • <!ELEMENT Portfolio templ*>
  • <Portfolio> <templ>…</templ> <templ>…</templ></Portfolio>

Record Templates

• .Stock ( T1 # … # Tn )

  • <!ELEMENT Stock (T1,…,Tn)>
  • <Stock> <T1>…</T1>… <Tn>…</Tn>

Template := Leaf | Record | List

Leaf := . Tag | . Tag ^ | . Tag ! Tag

List := . Tag Flatten Template

Record := . Tag ( TemplList )

Flatten := * | * Flatten

TemplList := Template | Template # TemplList

Tag := string

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