ddn.data.xml.relaxng

Relax NG 1.0 validation.

This module provides a native Relax NG representation and validator.

Supported patterns:

element (with @name or name classes anyName/nsName/choice with optional except)
attribute (with @name or name classes)
text, empty, data, value
group, choice, interleave
optional, zeroOrMore, oneOrMore
mixed, list
notAllowed
grammar with start, define, and ref
Recursive grammar definitions

Supported datatypes (XSD subset):

string, token, boolean, int/integer, decimal, float, double, date, dateTime, time, anyURI, NMTOKEN, NMTOKENS, ID, IDREF

Remaining limitations:

include and externalRef are not supported
combine attribute on define is not supported
datatypeLibrary attribute is acknowledged but only the built-in XSD type set is validated
Namespace-qualified element/attribute name matching uses lexical names only (no namespace expansion in pattern names)

var RELAXNG_NS

alias Defs

enum RelaxNgNameClassKind RelaxNgPatternKind

struct RelaxNgGrammar RelaxNgNameClass RelaxNgPattern RelaxNgValidationResult

fn canMatchEmpty canMatchEmptyList containsOnlyAttributes deepCopyNameClass deepCopyPattern deepCopyPatterns derive elementChildren extractAttributes findExcept hasElementChild hasNonWhitespaceText isAttributeOnlyPattern isNameClassElement matchAttributePattern matchAttributePatterns matchAttributePatternSet matchConsume matchContentPattern matchListTokens matchNameClass matchPattern matchSequence parseImplicitGroupChildren parseNameClass parseNameClassElement parseRelaxNg parseRelaxNgPattern resolveIfRef resolveRefs splitTokens textValue validateData validateRelaxNgDocument

Types 7

enumRelaxNgPatternKind

Relax NG pattern kind.

ELEMENTElement pattern.

EMPTYEmpty pattern.

ATTRIBUTEAttribute pattern.

TEXTText pattern.

DATADatatype pattern.

GROUPGroup (sequence) pattern.

CHOICEChoice pattern.

INTERLEAVEInterleave pattern.

OPTIONALOptional pattern.

ZERO_OR_MOREZero-or-more repetition.

ONE_OR_MOREOne-or-more repetition.

NOT_ALLOWEDNot-allowed pattern.

REFRef pattern (reference to a grammar definition).

MIXEDMixed pattern (interleave of text with child patterns).

LISTList pattern (whitespace-separated tokens).

VALUEValue pattern (literal value matching).

enumRelaxNgNameClassKind

Relax NG name class kind.

NAMESimple name match.

ANY_NAMEAny-name wildcard with optional except.

NS_NAMENamespace-name wildcard with optional except.

CHOICEChoice of name classes.

structRelaxNgNameClass

Relax NG name class.

Fields

RelaxNgNameClassKind kindName class kind.

string valueName for `NAME` kind, namespace URI for `NS_NAME` kind.

RelaxNgNameClass[] alternativesChoice alternatives (for `CHOICE` kind).

RelaxNgNameClass * exceptExcept name class (for `ANY_NAME` and `NS_NAME`). Heap-allocated to break self-reference.

structRelaxNgPattern

Relax NG pattern.

Fields

RelaxNgPatternKind kindPattern kind.

string nameName for `ELEMENT`, `ATTRIBUTE`, `DATA`, `VALUE`, `REF` patterns.

RelaxNgPattern[] childrenChild patterns.

RelaxNgNameClass nameClassName class for `ELEMENT` and `ATTRIBUTE` patterns.

structRelaxNgGrammar

Relax NG grammar.

Fields

RelaxNgPattern rootRoot pattern.

RelaxNgPattern[string] definitionsNamed definitions (for `ref` resolution).

structRelaxNgValidationResult

Result of validating a document against a Relax NG grammar.

Fields

bool valid`true` if valid.

string messageOptional error message if invalid.

private aliasDefs = const(RelaxNgPattern)[string]

Functions 34

fnRelaxNgGrammar parseRelaxNg(string rngXml) @safeParses a Relax NG schema document.

private fnvoid resolveRefs(ref RelaxNgGrammar g) @safe

private fnRelaxNgPattern parseRelaxNgPattern(XmlElement el) @safe

private fnRelaxNgNameClass parseNameClass(XmlElement parent) @safe

private fnRelaxNgNameClass parseNameClassElement(XmlElement el) @safe

private fnRelaxNgNameClass * findExcept(XmlElement el) @safe

private fnRelaxNgPattern[] parseImplicitGroupChildren(XmlElement parent, bool skipNameClass = false) @safe

private fnbool isNameClassElement(XmlElement el) @safe

fnRelaxNgValidationResult validateRelaxNgDocument(XmlDocument doc, RelaxNgGrammar grammar) @safeValidates `doc` against `grammar`.

private fnRelaxNgPattern resolveIfRef(RelaxNgPattern p, Defs defs) @safe

private fnRelaxNgPattern deepCopyPattern(const RelaxNgPattern p) @trusted

private fnRelaxNgPattern[] deepCopyPatterns(const RelaxNgPattern[] arr) @trusted

private fnRelaxNgNameClass deepCopyNameClass(const RelaxNgNameClass nc) @trusted

private fnbool matchPattern(RelaxNgPattern pattern, XmlElement el, out string message, Defs defs) @safe

private fnbool isAttributeOnlyPattern(RelaxNgPattern p) @safe pure

private fn

bool matchAttributePatterns(
       RelaxNgPattern[]  patterns,
       XmlElement el,
       out  string message,
       Defs defs)

@safe

private fn

bool matchAttributePatternSet(
       RelaxNgPattern p,
       XmlElement el,
       out  string message,
       Defs defs)

@safe

private fnbool containsOnlyAttributes(RelaxNgPattern p) @safe pure

private fn

void extractAttributes(
       RelaxNgPattern p,
       ref  RelaxNgPattern[]  attrs,
       ref  RelaxNgPattern[]  content)

@safe

private fnbool matchNameClass(RelaxNgNameClass nc, string fallbackName, string actualName) @safe

private fnbool matchAttributePattern(RelaxNgPattern pattern, XmlElement el, out string message, Defs defs) @safe

private fnbool validateData(string type, string value, out string message) @safe

private fnstring textValue(XmlElement el) @safe

private fnbool hasNonWhitespaceText(XmlElement el) @safe nothrow

private fnbool canMatchEmpty(RelaxNgPattern p) @safe

private fnRelaxNgPattern derive(RelaxNgPattern p, XmlElement el, Defs defs) @safe

private fnsize_t[] matchSequence(RelaxNgPattern[] patterns, XmlElement[] children, size_t pos, Defs defs) @safe

private fnsize_t[] matchConsume(RelaxNgPattern pattern, XmlElement[] children, size_t pos, Defs defs) @safe

private fnbool matchContentPattern(RelaxNgPattern pattern, XmlElement el, out string message, Defs defs) @safe

private fnstring[] splitTokens(string s) @safe pure

private fnbool matchListTokens(RelaxNgPattern[] patterns, string[] tokens, out string message) @safe

private fnbool canMatchEmptyList(RelaxNgPattern p) @safe pure

private fnXmlElement[] elementChildren(XmlElement el) @safe

private fnbool hasElementChild(XmlElement el) @safe nothrow

Variables 1

private enumvarRELAXNG_NS = "http://relaxng.org/ns/structure/1.0"