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import { CST } from './parse-cst'
import {
AST,
Alias,
Collection,
Merge,
Node,
Scalar,
Schema,
YAMLMap,
YAMLSeq
} from './types'
import { Type, YAMLError, YAMLWarning } from './util'
export { AST, CST }
export { default as parseCST } from './parse-cst'
/**
* `yaml` defines document-specific options in three places: as an argument of
* parse, create and stringify calls, in the values of `YAML.defaultOptions`,
* and in the version-dependent `YAML.Document.defaults` object. Values set in
* `YAML.defaultOptions` override version-dependent defaults, and argument
* options override both.
*/
export const defaultOptions: Options
export interface Options extends Schema.Options {
/**
* Default prefix for anchors.
*
* Default: `'a'`, resulting in anchors `a1`, `a2`, etc.
*/
anchorPrefix?: string
/**
* The number of spaces to use when indenting code.
*
* Default: `2`
*/
indent?: number
/**
* Whether block sequences should be indented.
*
* Default: `true`
*/
indentSeq?: boolean
/**
* Allow non-JSON JavaScript objects to remain in the `toJSON` output.
* Relevant with the YAML 1.1 `!!timestamp` and `!!binary` tags as well as BigInts.
*
* Default: `true`
*/
keepBlobsInJSON?: boolean
/**
* Include references in the AST to each node's corresponding CST node.
*
* Default: `false`
*/
keepCstNodes?: boolean
/**
* Store the original node type when parsing documents.
*
* Default: `true`
*/
keepNodeTypes?: boolean
/**
* When outputting JS, use Map rather than Object to represent mappings.
*
* Default: `false`
*/
mapAsMap?: boolean
/**
* Prevent exponential entity expansion attacks by limiting data aliasing count;
* set to `-1` to disable checks; `0` disallows all alias nodes.
*
* Default: `100`
*/
maxAliasCount?: number
/**
* Include line position & node type directly in errors; drop their verbose source and context.
*
* Default: `false`
*/
prettyErrors?: boolean
/**
* When stringifying, require keys to be scalars and to use implicit rather than explicit notation.
*
* Default: `false`
*/
simpleKeys?: boolean
/**
* The YAML version used by documents without a `%YAML` directive.
*
* Default: `"1.2"`
*/
version?: '1.0' | '1.1' | '1.2'
}
/**
* Some customization options are availabe to control the parsing and
* stringification of scalars. Note that these values are used by all documents.
*/
export const scalarOptions: {
binary: scalarOptions.Binary
bool: scalarOptions.Bool
int: scalarOptions.Int
null: scalarOptions.Null
str: scalarOptions.Str
}
export namespace scalarOptions {
interface Binary {
/**
* The type of string literal used to stringify `!!binary` values.
*
* Default: `'BLOCK_LITERAL'`
*/
defaultType: Scalar.Type
/**
* Maximum line width for `!!binary`.
*
* Default: `76`
*/
lineWidth: number
}
interface Bool {
/**
* String representation for `true`. With the core schema, use `'true' | 'True' | 'TRUE'`.
*
* Default: `'true'`
*/
trueStr: string
/**
* String representation for `false`. With the core schema, use `'false' | 'False' | 'FALSE'`.
*
* Default: `'false'`
*/
falseStr: string
}
interface Int {
/**
* Whether integers should be parsed into BigInt values.
*
* Default: `false`
*/
asBigInt: boolean
}
interface Null {
/**
* String representation for `null`. With the core schema, use `'null' | 'Null' | 'NULL' | '~' | ''`.
*
* Default: `'null'`
*/
nullStr: string
}
interface Str {
/**
* The default type of string literal used to stringify values
*
* Default: `'PLAIN'`
*/
defaultType: Scalar.Type
doubleQuoted: {
/**
* Whether to restrict double-quoted strings to use JSON-compatible syntax.
*
* Default: `false`
*/
jsonEncoding: boolean
/**
* Minimum length to use multiple lines to represent the value.
*
* Default: `40`
*/
minMultiLineLength: number
}
fold: {
/**
* Maximum line width (set to `0` to disable folding).
*
* Default: `80`
*/
lineWidth: number
/**
* Minimum width for highly-indented content.
*
* Default: `20`
*/
minContentWidth: number
}
}
}
export class Document extends Collection {
cstNode?: CST.Document
constructor(options?: Options)
tag: never
directivesEndMarker?: boolean
type: Type.DOCUMENT
/**
* Anchors associated with the document's nodes;
* also provides alias & merge node creators.
*/
anchors: Document.Anchors
/** The document contents. */
contents: any
/** Errors encountered during parsing. */
errors: YAMLError[]
/**
* The schema used with the document. Use `setSchema()` to change or
* initialise.
*/
schema?: Schema
/**
* Array of prefixes; each will have a string `handle` that
* starts and ends with `!` and a string `prefix` that the handle will be replaced by.
*/
tagPrefixes: Document.TagPrefix[]
/**
* The parsed version of the source document;
* if true-ish, stringified output will include a `%YAML` directive.
*/
version?: string
/** Warnings encountered during parsing. */
warnings: YAMLWarning[]
/**
* List the tags used in the document that are not in the default
* `tag:yaml.org,2002:` namespace.
*/
listNonDefaultTags(): string[]
/** Parse a CST into this document */
parse(cst: CST.Document): this
/**
* When a document is created with `new YAML.Document()`, the schema object is
* not set as it may be influenced by parsed directives; call this with no
* arguments to set it manually, or with arguments to change the schema used
* by the document.
**/
setSchema(
id?: Options['version'] | Schema.Name,
customTags?: (Schema.TagId | Schema.Tag)[]
): void
/** Set `handle` as a shorthand string for the `prefix` tag namespace. */
setTagPrefix(handle: string, prefix: string): void
/**
* A plain JavaScript representation of the document `contents`.
*
* @param arg Used by `JSON.stringify` to indicate the array index or property
* name. If its value is a `string` and the document `contents` has a scalar
* value, the `keepBlobsInJSON` option has no effect.
* @param onAnchor If defined, called with the resolved `value` and reference
* `count` for each anchor in the document.
* */
toJSON(arg?: string, onAnchor?: (value: any, count: number) => void): any
/** A YAML representation of the document. */
toString(): string
}
export namespace Document {
interface Parsed extends Document {
contents: Scalar | YAMLMap | YAMLSeq | null
/** The schema used with the document. */
schema: Schema
}
interface Anchors {
/**
* Create a new `Alias` node, adding the required anchor for `node`.
* If `name` is empty, a new anchor name will be generated.
*/
createAlias(node: Node, name?: string): Alias
/**
* Create a new `Merge` node with the given source nodes.
* Non-`Alias` sources will be automatically wrapped.
*/
createMergePair(...nodes: Node[]): Merge
/** The anchor name associated with `node`, if set. */
getName(node: Node): undefined | string
/** List of all defined anchor names. */
getNames(): string[]
/** The node associated with the anchor `name`, if set. */
getNode(name: string): undefined | Node
/**
* Find an available anchor name with the given `prefix` and a
* numerical suffix.
*/
newName(prefix: string): string
/**
* Associate an anchor with `node`. If `name` is empty, a new name will be generated.
* To remove an anchor, use `setAnchor(null, name)`.
*/
setAnchor(node: Node | null, name?: string): void | string
}
interface TagPrefix {
handle: string
prefix: string
}
}
/**
* Recursively turns objects into collections. Generic objects as well as `Map`
* and its descendants become mappings, while arrays and other iterable objects
* result in sequences.
*
* The primary purpose of this function is to enable attaching comments or other
* metadata to a value, or to otherwise exert more fine-grained control over the
* stringified output. To that end, you'll need to assign its return value to
* the `contents` of a Document (or somewhere within said contents), as the
* document's schema is required for YAML string output.
*
* @param wrapScalars If undefined or `true`, also wraps plain values in
* `Scalar` objects; if `false` and `value` is not an object, it will be
* returned directly.
* @param tag Use to specify the collection type, e.g. `"!!omap"`. Note that
* this requires the corresponding tag to be available based on the default
* options. To use a specific document's schema, use `doc.schema.createNode`.
*/
export function createNode(
value: any,
wrapScalars?: true,
tag?: string
): YAMLMap | YAMLSeq | Scalar
/**
* YAML.createNode recursively turns objects into Map and arrays to Seq collections.
* Its primary use is to enable attaching comments or other metadata to a value,
* or to otherwise exert more fine-grained control over the stringified output.
*
* Doesn't wrap plain values in Scalar objects.
*/
export function createNode(
value: any,
wrapScalars: false,
tag?: string
): YAMLMap | YAMLSeq | string | number | boolean | null
/**
* Parse an input string into a single YAML.Document.
*/
export function parseDocument(str: string, options?: Options): Document.Parsed
/**
* Parse the input as a stream of YAML documents.
*
* Documents should be separated from each other by `...` or `---` marker lines.
*/
export function parseAllDocuments(
str: string,
options?: Options
): Document.Parsed[]
/**
* Parse an input string into JavaScript.
*
* Only supports input consisting of a single YAML document; for multi-document
* support you should use `YAML.parseAllDocuments`. May throw on error, and may
* log warnings using `console.warn`.
*
* @param str A string with YAML formatting.
* @returns The value will match the type of the root value of the parsed YAML
* document, so Maps become objects, Sequences arrays, and scalars result in
* nulls, booleans, numbers and strings.
*/
export function parse(str: string, options?: Options): any
/**
* @returns Will always include \n as the last character, as is expected of YAML documents.
*/
export function stringify(value: any, options?: Options): string