public-api.js
3.77 KB
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
import { Composer } from './compose/composer.js';
import { Document } from './doc/Document.js';
import { prettifyError, YAMLParseError } from './errors.js';
import { warn } from './log.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;
}
return new Document(value, _replacer, options).toString(options);
}
export { parse, parseAllDocuments, parseDocument, stringify };