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