ISO Schematron rules
The @generatedBy attribute is for use within a <post> element.
The @when attribute cannot be used with any other att.datable.w3c attributes.
The @from and @notBefore attributes cannot be used together.
The @to and @notAfter attributes cannot be used together.
When used on a schema description element (like ), the @source attribute should have only 1 value. (This one has .)
The @unit attribute may be unnecessary when @unitRef is present.
@targetLang should only be used on if @target is specified.
The element indicated by @spanTo () must follow the current element
@schemeVersion can only be used if @scheme is specified.
The element should not be categorized in detail with @subtype unless also categorized in general with @type
The date of a translation should not be in the future.
@calendar indicates one or more systems or calendars to which the date represented by the content of this element belongs, but this element has no textual content.
Abstract model violation: Paragraphs may not occur inside other paragraphs or ab elements.
Abstract model violation: Metrical lines may not contain higher-level structural elements such as div, p, or ab, unless p is a child of figure or note, or is a descendant of floatingText.
Information about a deprecation should only be present in a specification element that is being deprecated: that is, only an element that has a @validUntil attribute should have a child <desc type="deprecationInfo">.
When target= is present, neither from= nor to= should be.
When from= is present, the to= attribute of is required.
When to= is present, the from= attribute of is required.
Only one of the attributes @target and @cRef may be supplied on .
Only one of the attributes @target and @cRef may be supplied on .
The content of a "gloss" list should include a sequence of one or more pairs of a label element followed by an item element
If the @target attribute on is used, the relatedItem element must be empty
A relatedItem element should have either a @target attribute or a child element to indicate the related bibliographic item
Abstract model violation: Lines may not contain lines or lg elements.
An lg element must contain at least one child l, lg, or gap element.
Abstract model violation: Lines may not contain line groups.
On , either the @marks attribute should be used, or a paragraph of description provided
An XPath in @match on the outer must start with '/'.
An XPath in @match must not start with '/' except on the outer .
One of the attributes @name, @ref or @key must be supplied
Only one of the attributes @active and @mutual may be supplied
the attribute @passive may be supplied only if the attribute @active is supplied
Error: TEI element must be member of att.global class
Abstract model violation: Metrical lines may not contain higher-level structural elements such as div, unless div is a descendant of floatingText.
Abstract model violation: p and ab may not contain higher-level structural elements such as div, unless div is a descendant of floatingText.
Error: both the versionDate and xml:lang attributes on "" are required when it is a child of "".
The first child of a should have an @xml:lang that indicates it is in English.
The sibling children of a should each have a different @xml:lang; this one duplicates the "" of a preceding sibling.
Error: sibling 'desc' elements with and without @versionDate.
Error: sibling 'gloss' elements with and without @versionDate.
Error: sibling 'valDesc' elements with and without @versionDate.
@maxOccurs should be greater than or equal to @minOccurs
When @maxOccurs is not specified, @minOccurs must be 0 or 1
Specification : the value of the module attribute ("") should correspond to an existing module, via a moduleSpec or moduleRef
A deprecated construct should include, whenever possible, an explanation, but this does not have a child <desc type="deprecationInfo">
trailing newline not allowed
leading newline not allowed
An element reference is not repeatable when part of a schema specification (and thus this <elementRef> should not have @minOccurs or @maxOccurs).
An element reference within a content model must refer to a locally defined element specification (and thus this <elementRef> should not have @source).
Child elements of are only allowed when an external module is being loaded
The prefix attribute of should not match that of any other element (it would defeat the purpose)
It is an error to supply both the @include and @except attributes
This elementSpec element has a mode= of "delete" even though it has child elements. Change the mode= to "add", "change", or "replace", or remove the child elements.
This elementSpec element has a mode= of "", but does not have any child elements or schema-changing attributes. Specify child elements, use validUntil=, predeclare=, ns=, or prefix=, or change the mode= to "delete".
A datatype specification should not refer to an element or a class.
In the context of tagset documentation, the listRef element must not self-nest.
In the context of tagset documentation, each ptr or ref element inside a listRef must have a target attribute with only 1 pointer as its value.
class membership (in this case of ) should be specified in sorted order, except att.global goes first.
The <altIdent> element should only be used as a child of <elementSpec>, <attDef>, or <valItem>.
There are 2 (or more) 'model' elements in this '' that have no predicate, but are targeted to the same output ("")
There are 2 (or more) 'model' elements in this '' that have the same predicate, and are targeted to the same output ("")
The 'model' children of a 'modelSequence' element inherit the @output attribute of the parent 'modelSequence', and thus should not have their own
The sequence element must have at least two child elements
The alternate element must have at least two child elements
Each <constraintDecl> element should have a @scheme attribute that is distinct from that of all the other <constraintDecl>s.
This constraintSpec element has a mode= of "delete" even though it has child elements. Change the mode= to "add", "change", or "replace", or remove the child elements.
This constraintSpec element has a mode= of "change", but does not have any child elements. Specify child elements, or change the mode= to "delete".
This constraintSpec element has a mode= of "", but does not have a child 'constraint' element. Use a child 'constraint' element or change the mode= to "delete" or "change".
Rules in the Schematron 1.* language must be inside a constraintSpec with a value other than 'schematron' or 'isoschematron' on the scheme attribute
Rules in the ISO Schematron language must be inside a constraintSpec with the value 'schematron' on the scheme attribute
An <sch:assert> or <sch:report> element must be a descendant of an <sch:rule> that has a @context; one or more inside this are not.
The @ident of 'constraintSpec' should be unique; this one () is the same as that of a previous 'constraintSpec'.
The @scheme attribute of <constraintSpec> is required when the @mode is (here on "")
The @scheme attribute of <constraintSpec> is required when the @mode is (here on "")
Attribute: the definition of the @ attribute in the
should have a closed valList or a datatype
Since the @ attribute is required, it will always be specified. Thus the default value (of "") will never be used. Either change the definition of the attribute so it is not required ("rec" or "opt"), or remove the defaultVal element.
In the defining the default value of the @ attribute is not among the closed list of possible values
In the defining the default value of the @ attribute is not among the closed list of possible values
Data facets can only be specified for references to datatypes specified by XML Schema Part 2: Datatypes Second Edition — that is, for there to be a 'dataFacet' child there must be a @name attribute.
Data facets and restrictions cannot both be expressed on the same data reference — that is, the @restriction attribute cannot be used when a 'dataFacet' element is present.
Restrictions can only be specified for references to datatypes specified by XML Schema Part 2: Datatypes Second Edition — that is, for there to be a @restriction attribute there must be a @name attribute, too.
You must supply at least two values for @target or on
Abstract model violation: Metrical lines may not contain higher-level divisions such as p or ab, unless ab is a child of figure or note, or is a descendant of floatingText.
You must supply at least two values for @target on
This element must have a @type attribute, since it is nested inside a
If there is any gloss inside , there must be an English gloss.
WARNING: use of deprecated element — The element will be removed from the TEI on 2027-03-07.
WARNING: use of deprecated element — The element will be removed from the TEI on 2026-03-10.
Parameter name '' (on ) not allowed.
Must be drawn from the list: default, alternate
Parameter name '' (on ) not allowed.
Must be drawn from the list: id
Parameter name '' (on ) not allowed.
Must be drawn from the list: content
Parameter name '' (on ) not allowed.
Must be drawn from the list: content
Parameter name '' (on ) not allowed.
Must be drawn from the list: type, label
Parameter name '' (on ) not allowed.
Must be drawn from the list: content
Parameter name '' (on ) not allowed.
Must be drawn from the list: content, source
Parameter name '' (on ) not allowed.
Must be drawn from the list: content
Parameter name '' (on ) not allowed.
Must be drawn from the list: title
Parameter name '' (on ) not allowed.
Must be drawn from the list: uri
Parameter name '' (on ) not allowed.
Must be drawn from the list: url, width, height, scale, title
Parameter name '' (on ) not allowed.
Must be drawn from the list: content, level
Parameter name '' (on ) not allowed.
Must be drawn from the list: type
Parameter name '' (on ) not allowed.
Must be drawn from the list: content, label
Parameter name '' (on ) not allowed.
Must be drawn from the list: content, uri
Parameter name '' (on ) not allowed.
Must be drawn from the list: content
Parameter name '' (on ) not allowed.
Must be drawn from the list: content
Parameter name '' (on ) not allowed.
Must be drawn from the list: content
Parameter name '' (on ) not allowed.
Must be drawn from the list: content, place, label
Parameter name '' (on ) not allowed.
Must be drawn from the list: content
Parameter name '' (on ) not allowed.
Must be drawn from the list: content
Parameter name '' (on ) not allowed.
Must be drawn from the list: content
Parameter name '' (on ) not allowed.
Must be drawn from the list: content
Parameter name '' (on ) not allowed.
Must be drawn from the list: content
Parameter name '' (on ) not allowed.
Must be drawn from the list: content