| [d24f17c] | 1 | 'use strict';
|
|---|
| 2 |
|
|---|
| 3 | var directives = require('../doc/directives.js');
|
|---|
| 4 | var Document = require('../doc/Document.js');
|
|---|
| 5 | var errors = require('../errors.js');
|
|---|
| 6 | var identity = require('../nodes/identity.js');
|
|---|
| 7 | var composeDoc = require('./compose-doc.js');
|
|---|
| 8 | var resolveEnd = require('./resolve-end.js');
|
|---|
| 9 |
|
|---|
| 10 | function getErrorPos(src) {
|
|---|
| 11 | if (typeof src === 'number')
|
|---|
| 12 | return [src, src + 1];
|
|---|
| 13 | if (Array.isArray(src))
|
|---|
| 14 | return src.length === 2 ? src : [src[0], src[1]];
|
|---|
| 15 | const { offset, source } = src;
|
|---|
| 16 | return [offset, offset + (typeof source === 'string' ? source.length : 1)];
|
|---|
| 17 | }
|
|---|
| 18 | function parsePrelude(prelude) {
|
|---|
| 19 | let comment = '';
|
|---|
| 20 | let atComment = false;
|
|---|
| 21 | let afterEmptyLine = false;
|
|---|
| 22 | for (let i = 0; i < prelude.length; ++i) {
|
|---|
| 23 | const source = prelude[i];
|
|---|
| 24 | switch (source[0]) {
|
|---|
| 25 | case '#':
|
|---|
| 26 | comment +=
|
|---|
| 27 | (comment === '' ? '' : afterEmptyLine ? '\n\n' : '\n') +
|
|---|
| 28 | (source.substring(1) || ' ');
|
|---|
| 29 | atComment = true;
|
|---|
| 30 | afterEmptyLine = false;
|
|---|
| 31 | break;
|
|---|
| 32 | case '%':
|
|---|
| 33 | if (prelude[i + 1]?.[0] !== '#')
|
|---|
| 34 | i += 1;
|
|---|
| 35 | atComment = false;
|
|---|
| 36 | break;
|
|---|
| 37 | default:
|
|---|
| 38 | // This may be wrong after doc-end, but in that case it doesn't matter
|
|---|
| 39 | if (!atComment)
|
|---|
| 40 | afterEmptyLine = true;
|
|---|
| 41 | atComment = false;
|
|---|
| 42 | }
|
|---|
| 43 | }
|
|---|
| 44 | return { comment, afterEmptyLine };
|
|---|
| 45 | }
|
|---|
| 46 | /**
|
|---|
| 47 | * Compose a stream of CST nodes into a stream of YAML Documents.
|
|---|
| 48 | *
|
|---|
| 49 | * ```ts
|
|---|
| 50 | * import { Composer, Parser } from 'yaml'
|
|---|
| 51 | *
|
|---|
| 52 | * const src: string = ...
|
|---|
| 53 | * const tokens = new Parser().parse(src)
|
|---|
| 54 | * const docs = new Composer().compose(tokens)
|
|---|
| 55 | * ```
|
|---|
| 56 | */
|
|---|
| 57 | class Composer {
|
|---|
| 58 | constructor(options = {}) {
|
|---|
| 59 | this.doc = null;
|
|---|
| 60 | this.atDirectives = false;
|
|---|
| 61 | this.prelude = [];
|
|---|
| 62 | this.errors = [];
|
|---|
| 63 | this.warnings = [];
|
|---|
| 64 | this.onError = (source, code, message, warning) => {
|
|---|
| 65 | const pos = getErrorPos(source);
|
|---|
| 66 | if (warning)
|
|---|
| 67 | this.warnings.push(new errors.YAMLWarning(pos, code, message));
|
|---|
| 68 | else
|
|---|
| 69 | this.errors.push(new errors.YAMLParseError(pos, code, message));
|
|---|
| 70 | };
|
|---|
| 71 | // eslint-disable-next-line @typescript-eslint/prefer-nullish-coalescing
|
|---|
| 72 | this.directives = new directives.Directives({ version: options.version || '1.2' });
|
|---|
| 73 | this.options = options;
|
|---|
| 74 | }
|
|---|
| 75 | decorate(doc, afterDoc) {
|
|---|
| 76 | const { comment, afterEmptyLine } = parsePrelude(this.prelude);
|
|---|
| 77 | //console.log({ dc: doc.comment, prelude, comment })
|
|---|
| 78 | if (comment) {
|
|---|
| 79 | const dc = doc.contents;
|
|---|
| 80 | if (afterDoc) {
|
|---|
| 81 | doc.comment = doc.comment ? `${doc.comment}\n${comment}` : comment;
|
|---|
| 82 | }
|
|---|
| 83 | else if (afterEmptyLine || doc.directives.docStart || !dc) {
|
|---|
| 84 | doc.commentBefore = comment;
|
|---|
| 85 | }
|
|---|
| 86 | else if (identity.isCollection(dc) && !dc.flow && dc.items.length > 0) {
|
|---|
| 87 | let it = dc.items[0];
|
|---|
| 88 | if (identity.isPair(it))
|
|---|
| 89 | it = it.key;
|
|---|
| 90 | const cb = it.commentBefore;
|
|---|
| 91 | it.commentBefore = cb ? `${comment}\n${cb}` : comment;
|
|---|
| 92 | }
|
|---|
| 93 | else {
|
|---|
| 94 | const cb = dc.commentBefore;
|
|---|
| 95 | dc.commentBefore = cb ? `${comment}\n${cb}` : comment;
|
|---|
| 96 | }
|
|---|
| 97 | }
|
|---|
| 98 | if (afterDoc) {
|
|---|
| 99 | Array.prototype.push.apply(doc.errors, this.errors);
|
|---|
| 100 | Array.prototype.push.apply(doc.warnings, this.warnings);
|
|---|
| 101 | }
|
|---|
| 102 | else {
|
|---|
| 103 | doc.errors = this.errors;
|
|---|
| 104 | doc.warnings = this.warnings;
|
|---|
| 105 | }
|
|---|
| 106 | this.prelude = [];
|
|---|
| 107 | this.errors = [];
|
|---|
| 108 | this.warnings = [];
|
|---|
| 109 | }
|
|---|
| 110 | /**
|
|---|
| 111 | * Current stream status information.
|
|---|
| 112 | *
|
|---|
| 113 | * Mostly useful at the end of input for an empty stream.
|
|---|
| 114 | */
|
|---|
| 115 | streamInfo() {
|
|---|
| 116 | return {
|
|---|
| 117 | comment: parsePrelude(this.prelude).comment,
|
|---|
| 118 | directives: this.directives,
|
|---|
| 119 | errors: this.errors,
|
|---|
| 120 | warnings: this.warnings
|
|---|
| 121 | };
|
|---|
| 122 | }
|
|---|
| 123 | /**
|
|---|
| 124 | * Compose tokens into documents.
|
|---|
| 125 | *
|
|---|
| 126 | * @param forceDoc - If the stream contains no document, still emit a final document including any comments and directives that would be applied to a subsequent document.
|
|---|
| 127 | * @param endOffset - Should be set if `forceDoc` is also set, to set the document range end and to indicate errors correctly.
|
|---|
| 128 | */
|
|---|
| 129 | *compose(tokens, forceDoc = false, endOffset = -1) {
|
|---|
| 130 | for (const token of tokens)
|
|---|
| 131 | yield* this.next(token);
|
|---|
| 132 | yield* this.end(forceDoc, endOffset);
|
|---|
| 133 | }
|
|---|
| 134 | /** Advance the composer by one CST token. */
|
|---|
| 135 | *next(token) {
|
|---|
| 136 | if (process.env.LOG_STREAM)
|
|---|
| 137 | console.dir(token, { depth: null });
|
|---|
| 138 | switch (token.type) {
|
|---|
| 139 | case 'directive':
|
|---|
| 140 | this.directives.add(token.source, (offset, message, warning) => {
|
|---|
| 141 | const pos = getErrorPos(token);
|
|---|
| 142 | pos[0] += offset;
|
|---|
| 143 | this.onError(pos, 'BAD_DIRECTIVE', message, warning);
|
|---|
| 144 | });
|
|---|
| 145 | this.prelude.push(token.source);
|
|---|
| 146 | this.atDirectives = true;
|
|---|
| 147 | break;
|
|---|
| 148 | case 'document': {
|
|---|
| 149 | const doc = composeDoc.composeDoc(this.options, this.directives, token, this.onError);
|
|---|
| 150 | if (this.atDirectives && !doc.directives.docStart)
|
|---|
| 151 | this.onError(token, 'MISSING_CHAR', 'Missing directives-end/doc-start indicator line');
|
|---|
| 152 | this.decorate(doc, false);
|
|---|
| 153 | if (this.doc)
|
|---|
| 154 | yield this.doc;
|
|---|
| 155 | this.doc = doc;
|
|---|
| 156 | this.atDirectives = false;
|
|---|
| 157 | break;
|
|---|
| 158 | }
|
|---|
| 159 | case 'byte-order-mark':
|
|---|
| 160 | case 'space':
|
|---|
| 161 | break;
|
|---|
| 162 | case 'comment':
|
|---|
| 163 | case 'newline':
|
|---|
| 164 | this.prelude.push(token.source);
|
|---|
| 165 | break;
|
|---|
| 166 | case 'error': {
|
|---|
| 167 | const msg = token.source
|
|---|
| 168 | ? `${token.message}: ${JSON.stringify(token.source)}`
|
|---|
| 169 | : token.message;
|
|---|
| 170 | const error = new errors.YAMLParseError(getErrorPos(token), 'UNEXPECTED_TOKEN', msg);
|
|---|
| 171 | if (this.atDirectives || !this.doc)
|
|---|
| 172 | this.errors.push(error);
|
|---|
| 173 | else
|
|---|
| 174 | this.doc.errors.push(error);
|
|---|
| 175 | break;
|
|---|
| 176 | }
|
|---|
| 177 | case 'doc-end': {
|
|---|
| 178 | if (!this.doc) {
|
|---|
| 179 | const msg = 'Unexpected doc-end without preceding document';
|
|---|
| 180 | this.errors.push(new errors.YAMLParseError(getErrorPos(token), 'UNEXPECTED_TOKEN', msg));
|
|---|
| 181 | break;
|
|---|
| 182 | }
|
|---|
| 183 | this.doc.directives.docEnd = true;
|
|---|
| 184 | const end = resolveEnd.resolveEnd(token.end, token.offset + token.source.length, this.doc.options.strict, this.onError);
|
|---|
| 185 | this.decorate(this.doc, true);
|
|---|
| 186 | if (end.comment) {
|
|---|
| 187 | const dc = this.doc.comment;
|
|---|
| 188 | this.doc.comment = dc ? `${dc}\n${end.comment}` : end.comment;
|
|---|
| 189 | }
|
|---|
| 190 | this.doc.range[2] = end.offset;
|
|---|
| 191 | break;
|
|---|
| 192 | }
|
|---|
| 193 | default:
|
|---|
| 194 | this.errors.push(new errors.YAMLParseError(getErrorPos(token), 'UNEXPECTED_TOKEN', `Unsupported token ${token.type}`));
|
|---|
| 195 | }
|
|---|
| 196 | }
|
|---|
| 197 | /**
|
|---|
| 198 | * Call at end of input to yield any remaining document.
|
|---|
| 199 | *
|
|---|
| 200 | * @param forceDoc - If the stream contains no document, still emit a final document including any comments and directives that would be applied to a subsequent document.
|
|---|
| 201 | * @param endOffset - Should be set if `forceDoc` is also set, to set the document range end and to indicate errors correctly.
|
|---|
| 202 | */
|
|---|
| 203 | *end(forceDoc = false, endOffset = -1) {
|
|---|
| 204 | if (this.doc) {
|
|---|
| 205 | this.decorate(this.doc, true);
|
|---|
| 206 | yield this.doc;
|
|---|
| 207 | this.doc = null;
|
|---|
| 208 | }
|
|---|
| 209 | else if (forceDoc) {
|
|---|
| 210 | const opts = Object.assign({ _directives: this.directives }, this.options);
|
|---|
| 211 | const doc = new Document.Document(undefined, opts);
|
|---|
| 212 | if (this.atDirectives)
|
|---|
| 213 | this.onError(endOffset, 'MISSING_CHAR', 'Missing directives-end indicator line');
|
|---|
| 214 | doc.range = [0, endOffset, endOffset];
|
|---|
| 215 | this.decorate(doc, false);
|
|---|
| 216 | yield doc;
|
|---|
| 217 | }
|
|---|
| 218 | }
|
|---|
| 219 | }
|
|---|
| 220 |
|
|---|
| 221 | exports.Composer = Composer;
|
|---|
