| import { Composer } from './compose/composer.js'; | |
| import { Document } from './doc/Document.js'; | |
| import { prettifyError, YAMLParseError } from './errors.js'; | |
| import { warn } from './log.js'; | |
| import { isDocument } from './nodes/identity.js'; | |
| import { LineCounter } from './parse/line-counter.js'; | |
| import { Parser } from './parse/parser.js'; | |
| function parseOptions(options) { | |
| const prettyErrors = options.prettyErrors !== false; | |
| const lineCounter = options.lineCounter || (prettyErrors && new LineCounter()) || null; | |
| return { lineCounter, prettyErrors }; | |
| } | |
| /** | |
| * Parse the input as a stream of YAML documents. | |
| * | |
| * Documents should be separated from each other by `...` or `---` marker lines. | |
| * | |
| * @returns If an empty `docs` array is returned, it will be of type | |
| * EmptyStream and contain additional stream information. In | |
| * TypeScript, you should use `'empty' in docs` as a type guard for it. | |
| */ | |
| function parseAllDocuments(source, options = {}) { | |
| const { lineCounter, prettyErrors } = parseOptions(options); | |
| const parser = new Parser(lineCounter?.addNewLine); | |
| const composer = new Composer(options); | |
| const docs = Array.from(composer.compose(parser.parse(source))); | |
| if (prettyErrors && lineCounter) | |
| for (const doc of docs) { | |
| doc.errors.forEach(prettifyError(source, lineCounter)); | |
| doc.warnings.forEach(prettifyError(source, lineCounter)); | |
| } | |
| if (docs.length > 0) | |
| return docs; | |
| return Object.assign([], { empty: true }, composer.streamInfo()); | |
| } | |
| /** Parse an input string into a single YAML.Document */ | |
| function parseDocument(source, options = {}) { | |
| const { lineCounter, prettyErrors } = parseOptions(options); | |
| const parser = new Parser(lineCounter?.addNewLine); | |
| const composer = new Composer(options); | |
| // `doc` is always set by compose.end(true) at the very latest | |
| let doc = null; | |
| for (const _doc of composer.compose(parser.parse(source), true, source.length)) { | |
| if (!doc) | |
| doc = _doc; | |
| else if (doc.options.logLevel !== 'silent') { | |
| doc.errors.push(new YAMLParseError(_doc.range.slice(0, 2), 'MULTIPLE_DOCS', 'Source contains multiple documents; please use YAML.parseAllDocuments()')); | |
| break; | |
| } | |
| } | |
| if (prettyErrors && lineCounter) { | |
| doc.errors.forEach(prettifyError(source, lineCounter)); | |
| doc.warnings.forEach(prettifyError(source, lineCounter)); | |
| } | |
| return doc; | |
| } | |
| function parse(src, reviver, options) { | |
| let _reviver = undefined; | |
| if (typeof reviver === 'function') { | |
| _reviver = reviver; | |
| } | |
| else if (options === undefined && reviver && typeof reviver === 'object') { | |
| options = reviver; | |
| } | |
| const doc = parseDocument(src, options); | |
| if (!doc) | |
| return null; | |
| doc.warnings.forEach(warning => warn(doc.options.logLevel, warning)); | |
| if (doc.errors.length > 0) { | |
| if (doc.options.logLevel !== 'silent') | |
| throw doc.errors[0]; | |
| else | |
| doc.errors = []; | |
| } | |
| return doc.toJS(Object.assign({ reviver: _reviver }, options)); | |
| } | |
| function stringify(value, replacer, options) { | |
| let _replacer = null; | |
| if (typeof replacer === 'function' || Array.isArray(replacer)) { | |
| _replacer = replacer; | |
| } | |
| else if (options === undefined && replacer) { | |
| options = replacer; | |
| } | |
| if (typeof options === 'string') | |
| options = options.length; | |
| if (typeof options === 'number') { | |
| const indent = Math.round(options); | |
| options = indent < 1 ? undefined : indent > 8 ? { indent: 8 } : { indent }; | |
| } | |
| if (value === undefined) { | |
| const { keepUndefined } = options ?? replacer ?? {}; | |
| if (!keepUndefined) | |
| return undefined; | |
| } | |
| if (isDocument(value) && !_replacer) | |
| return value.toString(options); | |
| return new Document(value, _replacer, options).toString(options); | |
| } | |
| export { parse, parseAllDocuments, parseDocument, stringify }; | |
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