Class TrigReader

A visitor class that constructs RDF/JS quads from TriG syntax trees. TriG extends Turtle with support for named graphs.

Hierarchy

BaseVisitor
- TrigReader

Constructors

constructor

new TrigReader(): TrigReader
Returns TrigReader
Overrides BaseVisitor.constructor
- Defined in src/trig/reader.ts:46

Properties

baseIri

baseIri: NamedNode<string> = null

The base IRI of the document.

currentGraph

currentGraph: BlankNode | NamedNode<string> = null

The current graph context. null means the default graph.

namespaces

namespaces: Record<string, NamedNode> = {}

A map of prefixes to their namespace IRI.

Methods

_emitQuad

_emitQuad(
    quads: Quad[],
    subject: BlankNode | NamedNode<string>,
    predicate: NamedNode,
    object: Term,
): void
Emit a quad using the current graph context.
Parameters
- quads: Quad[]
- subject: BlankNode | NamedNode<string>
- predicate: NamedNode
- object: Term
Returns void
- Defined in src/trig/reader.ts:831

_processDirectiveResult

_processDirectiveResult(result: DirectiveResult): void
Parameters
- result: DirectiveResult
Returns void
- Defined in src/trig/reader.ts:839

annotation

annotation(ctx: TrigReaderCstContext, quads: Quad[]): void
Parameters
- ctx: TrigReaderCstContext
- quads: Quad[]
Returns void
- Defined in src/trig/reader.ts:1275

annotationBlock

annotationBlock(ctx: TrigReaderCstContext, quads: Quad[]): void
Parameters
- ctx: TrigReaderCstContext
- quads: Quad[]
Returns void
- Defined in src/trig/reader.ts:1279

anon

anon(ctx: TrigReaderCstContext): BlankNode
Parameters
- ctx: TrigReaderCstContext
Returns BlankNode
- Defined in src/trig/reader.ts:1074

base

base(ctx: TrigReaderCstContext): DirectiveResult
Parameters
- ctx: TrigReaderCstContext
Returns DirectiveResult
- Defined in src/trig/reader.ts:873

blank

blank(ctx: TrigReaderCstContext, quads: Quad[]): BlankNode | NamedNode<string>
https://www.w3.org/TR/trig/#grammar-production-blank
Parameters
- ctx: TrigReaderCstContext
- quads: Quad[]
Returns BlankNode | NamedNode<string>
- Defined in src/trig/reader.ts:820

blankNode

blankNode(ctx: TrigReaderCstContext): BlankNode
Parameters
- ctx: TrigReaderCstContext
Returns BlankNode
- Defined in src/trig/reader.ts:1064

blankNodePropertyList

blankNodePropertyList(ctx: TrigReaderCstContext, quads: Quad[]): BlankNode[]
Parameters
- ctx: TrigReaderCstContext
- quads: Quad[]
Returns BlankNode[]
- Defined in src/trig/reader.ts:1047

block

block(ctx: TrigReaderCstContext, quads: Quad[]): void
https://www.w3.org/TR/rdf12-trig/#grammar-production-block
Parameters
- ctx: TrigReaderCstContext
- quads: Quad[]
Returns void
- Defined in src/trig/reader.ts:701

booleanLiteral

booleanLiteral(ctx: TrigReaderCstContext): Literal
Parameters
- ctx: TrigReaderCstContext
Returns Literal
- Defined in src/trig/reader.ts:1093

collection

collection(
ctx: TrigReaderCstContext,
quads: Quad[],
): BlankNode | NamedNode<string>
Parameters
- ctx: TrigReaderCstContext
- quads: Quad[]
Returns BlankNode | NamedNode<string>
- Defined in src/trig/reader.ts:933

datatype

datatype(ctx: TrigReaderCstContext): NamedNode
Parameters
- ctx: TrigReaderCstContext
Returns NamedNode
- Defined in src/trig/reader.ts:1178

directive

directive(ctx: TrigReaderCstContext): DirectiveResult
Parameters
- ctx: TrigReaderCstContext
Returns DirectiveResult
- Defined in src/trig/reader.ts:849

getBaseIri

getBaseIri(ctx: TrigReaderCstContext): DirectiveResult
Parameters
- ctx: TrigReaderCstContext
Returns DirectiveResult
- Defined in src/trig/reader.ts:1366

getBlankNode

getBlankNode(ctx: TrigReaderCstContext): BlankNode
Parameters
- ctx: TrigReaderCstContext
Returns BlankNode
- Defined in src/trig/reader.ts:1394

getNamedNode

getNamedNode(ctx: TrigReaderCstContext): NamedNode
Parameters
- ctx: TrigReaderCstContext
Returns NamedNode
- Defined in src/trig/reader.ts:1374

iri

iri(ctx: TrigReaderCstContext): NamedNode
Parameters
- ctx: TrigReaderCstContext
Returns NamedNode
- Defined in src/trig/reader.ts:1141

labelOrSubject

labelOrSubject(ctx: TrigReaderCstContext): BlankNode | NamedNode<string>
https://www.w3.org/TR/trig/#grammar-production-labelOrSubject
Parameters
- ctx: TrigReaderCstContext
Returns BlankNode | NamedNode<string>
- Defined in src/trig/reader.ts:809

literal

literal(ctx: TrigReaderCstContext): Literal
Parameters
- ctx: TrigReaderCstContext
Returns Literal
- Defined in src/trig/reader.ts:1166

numericLiteral

numericLiteral(ctx: TrigReaderCstContext): Literal
Parameters
- ctx: TrigReaderCstContext
Returns Literal
- Defined in src/trig/reader.ts:1081

object

object(ctx: TrigReaderCstContext, quads: Quad[]): Term[]
Parameters
- ctx: TrigReaderCstContext
- quads: Quad[]
Returns Term[]
- Defined in src/trig/reader.ts:994

objectList

objectList(ctx: TrigReaderCstContext, quads: Quad[]): ObjectListResult[]
Parameters
- ctx: TrigReaderCstContext
- quads: Quad[]
Returns ObjectListResult[]
- Defined in src/trig/reader.ts:1014

predicate

predicate(ctx: TrigReaderCstContext): NamedNode
Parameters
- ctx: TrigReaderCstContext
Returns NamedNode
- Defined in src/trig/reader.ts:984

predicateObjectList

predicateObjectList(
ctx: TrigReaderCstContext,
quads: Quad[],
): PredicateObjectResult[]
Parameters
- ctx: TrigReaderCstContext
- quads: Quad[]
Returns PredicateObjectResult[]
- Defined in src/trig/reader.ts:1027

prefix

prefix(ctx: TrigReaderCstContext): DirectiveResult
Parameters
- ctx: TrigReaderCstContext
Returns DirectiveResult
- Defined in src/trig/reader.ts:866

prefixedName

prefixedName(ctx: TrigReaderCstContext): NamedNode
Parameters
- ctx: TrigReaderCstContext
Returns NamedNode
- Defined in src/trig/reader.ts:1151

processAnnotation

processAnnotation(
    annotationCtx: TrigReaderCstContext,
    subject: BlankNode | NamedNode<string>,
    predicate: NamedNode,
    object: Term,
    quads: Quad[],
): void
Parameters
- annotationCtx: TrigReaderCstContext
- subject: BlankNode | NamedNode<string>
- predicate: NamedNode
- object: Term
- quads: Quad[]
Returns void
- Defined in src/trig/reader.ts:1283

readQuadContexts

readQuadContexts(ctx: CstNode): QuadContext[]
Parse the document and return quad context information with source tokens. This is useful for IDE features that need to associate positions with triples.
Parameters
- ctx: CstNode
Returns QuadContext[]
- Defined in src/trig/reader.ts:110

reifiedTriple

reifiedTriple(
ctx: TrigReaderCstContext,
quads: Quad[],
): BlankNode | NamedNode<string>
Parameters
- ctx: TrigReaderCstContext
- quads: Quad[]
Returns BlankNode | NamedNode<string>
- Defined in src/trig/reader.ts:1186

reifier

reifier(ctx: TrigReaderCstContext): BlankNode | NamedNode<string>
Parameters
- ctx: TrigReaderCstContext
Returns BlankNode | NamedNode<string>
- Defined in src/trig/reader.ts:1262

rtObject

rtObject(ctx: TrigReaderCstContext, quads: Quad[]): Term
Parameters
- ctx: TrigReaderCstContext
- quads: Quad[]
Returns Term
- Defined in src/trig/reader.ts:1220

rtSubject

rtSubject(
ctx: TrigReaderCstContext,
quads: Quad[],
): BlankNode | NamedNode<string>
Parameters
- ctx: TrigReaderCstContext
- quads: Quad[]
Returns BlankNode | NamedNode<string>
- Defined in src/trig/reader.ts:1210

sparqlBase

sparqlBase(ctx: TrigReaderCstContext): DirectiveResult
Parameters
- ctx: TrigReaderCstContext
Returns DirectiveResult
- Defined in src/trig/reader.ts:884

sparqlPrefix

sparqlPrefix(ctx: TrigReaderCstContext): DirectiveResult
Parameters
- ctx: TrigReaderCstContext
Returns DirectiveResult
- Defined in src/trig/reader.ts:877

sparqlVersion

sparqlVersion(ctx: TrigReaderCstContext): DirectiveResult
Parameters
- ctx: TrigReaderCstContext
Returns DirectiveResult
- Defined in src/trig/reader.ts:892

string

string(ctx: TrigReaderCstContext): string
Parameters
- ctx: TrigReaderCstContext
Returns string
- Defined in src/trig/reader.ts:1119

stringLiteral

stringLiteral(ctx: TrigReaderCstContext): Literal
Parameters
- ctx: TrigReaderCstContext
Returns Literal
- Defined in src/trig/reader.ts:1103

subject

subject(ctx: TrigReaderCstContext, quads: Quad[]): BlankNode | NamedNode<string>
Parameters
- ctx: TrigReaderCstContext
- quads: Quad[]
Returns BlankNode | NamedNode<string>
- Defined in src/trig/reader.ts:972

trigDoc

trigDoc(ctx: TrigReaderCstContext): Quad[]
https://www.w3.org/TR/trig/#grammar-production-trigDoc
Parameters
- ctx: TrigReaderCstContext
Returns Quad[]
- Defined in src/trig/reader.ts:63

triples

triples(ctx: TrigReaderCstContext, quads: Quad[]): void
Parameters
- ctx: TrigReaderCstContext
- quads: Quad[]
Returns void
- Defined in src/trig/reader.ts:900

triples2

triples2(ctx: TrigReaderCstContext, quads: Quad[]): void
https://www.w3.org/TR/trig/#grammar-production-triples2 triples2 handles blankNodePropertyList or collection as subject in the default graph.
Parameters
- ctx: TrigReaderCstContext
- quads: Quad[]
Returns void
- Defined in src/trig/reader.ts:782

triplesBlock

triplesBlock(ctx: TrigReaderCstContext, quads: Quad[]): void
https://www.w3.org/TR/trig/#grammar-production-triplesBlock
Parameters
- ctx: TrigReaderCstContext
- quads: Quad[]
Returns void
- Defined in src/trig/reader.ts:767

triplesOrGraph

triplesOrGraph(ctx: TrigReaderCstContext, quads: Quad[]): void
https://www.w3.org/TR/rdf12-trig/#grammar-production-triplesOrGraph
Parameters
- ctx: TrigReaderCstContext
- quads: Quad[]
Returns void
- Defined in src/trig/reader.ts:723

tripleTerm

tripleTerm(ctx: TrigReaderCstContext): Quad
Parameters
- ctx: TrigReaderCstContext
Returns Quad
- Defined in src/trig/reader.ts:1234

ttObject

ttObject(ctx: TrigReaderCstContext): Term
Parameters
- ctx: TrigReaderCstContext
Returns Term
- Defined in src/trig/reader.ts:1250

ttSubject

ttSubject(ctx: TrigReaderCstContext): BlankNode | NamedNode<string>
Parameters
- ctx: TrigReaderCstContext
Returns BlankNode | NamedNode<string>
- Defined in src/trig/reader.ts:1242

unescapeString

unescapeString(raw: string): string
Parameters
- raw: string
Returns string
- Defined in src/trig/reader.ts:1137

validateVisitor

validateVisitor(): void
Will throw an error if the visitor is missing any required methods
- visitXYZ for each XYZ grammar rule.
Returns void
Inherited from BaseVisitor.validateVisitor
- Defined in node_modules/@chevrotain/types/api.d.ts:1912

version

version(ctx: TrigReaderCstContext): DirectiveResult
Parameters
- ctx: TrigReaderCstContext
Returns DirectiveResult
- Defined in src/trig/reader.ts:888

versionSpecifier

versionSpecifier(ctx: TrigReaderCstContext): DirectiveResult
Parameters
- ctx: TrigReaderCstContext
Returns DirectiveResult
- Defined in src/trig/reader.ts:896

visit

visit(cstNode: CstNode | CstNode[], param?: any): any
Parameters
- cstNode: CstNode | CstNode[]
- Optionalparam: any
Returns any
Inherited from BaseVisitor.visit
- Defined in node_modules/@chevrotain/types/api.d.ts:1906

wrappedGraph

wrappedGraph(ctx: TrigReaderCstContext, quads: Quad[]): void
https://www.w3.org/TR/rdf12-trig/#grammar-production-wrappedGraph
Parameters
- ctx: TrigReaderCstContext
- quads: Quad[]
Returns void
- Defined in src/trig/reader.ts:758

Class TrigReader

Hierarchy

Index

Constructors

Properties

Methods

Constructors

constructor

Returns TrigReader

Properties

baseIri

currentGraph

namespaces

Methods

_emitQuad

Parameters

Returns void

_processDirectiveResult

Parameters

Returns void

annotation

Parameters

Returns void

annotationBlock

Parameters

Returns void

anon

Parameters

Returns BlankNode

base

Parameters

Returns DirectiveResult

blank

Parameters

Returns BlankNode | NamedNode<string>

blankNode

Parameters

Returns BlankNode

blankNodePropertyList

Parameters

Returns BlankNode[]

block

Parameters

Returns void

booleanLiteral

Parameters

Returns Literal

collection

Parameters

Returns BlankNode | NamedNode<string>

datatype

Parameters

Returns NamedNode

directive

Parameters

Returns DirectiveResult

getBaseIri

Parameters

Returns DirectiveResult

getBlankNode

Parameters

Returns BlankNode

getNamedNode

Parameters

Returns NamedNode

iri

Parameters

Returns NamedNode

labelOrSubject

Parameters

Returns BlankNode | NamedNode<string>

literal

Parameters

Returns Literal

numericLiteral

Parameters

Returns Literal

object

Parameters

Returns Term[]