<refState>

<refState> (reference state) specifies one component of a canonical reference defined by the milestone method. 2.3.5.3 Milestone Method 2.3.5 The Reference System Declaration
Moduleheader — 2 The TEI Header
AttributesIn addition to global attributes
ed(edition) indicates which edition or version the milestone applies to.
Status Optional
Datatype 

<rng:ref name="data.code"/>
data.code
Values Any string of characters; usually a siglum conventionally used for the edition.
Note
If ed is not specified, then any milestone tag with an appropriate unit attribute will be selected.
unitindicates what kind of state is changing at this milestone.
Status Required
Datatype 

<rng:ref name="data.enumerated"/>
data.enumerated
Suggested values include:
page
page breaks in the reference edition.
column
column breaks.
line
line breaks.
book
any units termed book, liber, etc.
poem
individual poems in a collection.
canto
cantos or other major sections of a poem.
stanza
stanzas within a poem, book, or canto.
act
acts within a play.
scene
scenes within a play or act.
section
sections of any kind.
absent
passages not present in the reference edition.
lengthspecifies the fixed length of the reference component.
Status Optional
Datatype 

<rng:ref name="data.count"/>
data.count
Values Should be a positive integer; if no value is provided, the length is unlimited and goes to the next delimiter or to the end of the value.
Note
When constructing a reference, if the reference component found is of numeric type, the length is made up by inserting leading zeros; if it is not, by inserting trailing blanks. In either case, reference components are truncated if necessary at the right hand side.
When seeking a reference, the length indicates the number of characters which should be compared. Values longer than this will be regarded as matching, if they start correctly.
delim(delimiter) supplies a delimiting string following the reference component.
Status Optional
Datatype 

<rng:text/>
text
Values If a single space is used it is interpreted as whitespace.
Used byrefsDecl
May containEmpty element
Declaration

<rng:element name="refState">
<rng:ref name="att.global.attributes"/>
<rng:optional>
 <rng:attribute name="ed">
  <rng:ref name="data.code"/>
 </rng:attribute>
</rng:optional>
<rng:attribute name="unit">
 <rng:choice>
  <rng:value>page</rng:value>
  <rng:value>column</rng:value>
  <rng:value>line</rng:value>
  <rng:value>book</rng:value>
  <rng:value>poem</rng:value>
  <rng:value>canto</rng:value>
  <rng:value>stanza</rng:value>
  <rng:value>act</rng:value>
  <rng:value>scene</rng:value>
  <rng:value>section</rng:value>
  <rng:value>absent</rng:value>
  <rng:data type="Name"/>
 </rng:choice>
</rng:attribute>
<rng:optional>
 <rng:attribute name="length">
  <rng:ref name="data.count"/>
 </rng:attribute>
</rng:optional>
<rng:optional>
 <rng:attribute name="delim">
  <rng:text/>
 </rng:attribute>
</rng:optional>
<rng:empty/>
</rng:element>
element refState
{
   att.global.attributes,
   attribute ed { data.code }?,
   attribute unit
   {
      "page"
    | "column"
    | "line"
    | "book"
    | "poem"
    | "canto"
    | "stanza"
    | "act"
    | "scene"
    | "section"
    | "absent"
    | xsd:Name
   },
   attribute length { data.count }?,
   attribute delim { text }?,
   empty
}
Example
<refState unit="book" delim=":"/>
<refState unit="line" length="4"/>