Initial commit

1 files changed, 958 insertions, 0 deletions

diff --git a/node_modules/yaml/dist/parse/parser.js b/node_modules/yaml/dist/parse/parser.js
new file mode 100644
index 0000000..0873092
--- /dev/null
+++ b/node_modules/yaml/dist/parse/parser.js
@@ -0,0 +1,958 @@
+'use strict';
+
+var cst = require('./cst.js');
+var lexer = require('./lexer.js');
+
+function includesToken(list, type) {
+    for (let i = 0; i < list.length; ++i)
+        if (list[i].type === type)
+            return true;
+    return false;
+}
+function findNonEmptyIndex(list) {
+    for (let i = 0; i < list.length; ++i) {
+        switch (list[i].type) {
+            case 'space':
+            case 'comment':
+            case 'newline':
+                break;
+            default:
+                return i;
+        }
+    }
+    return -1;
+}
+function isFlowToken(token) {
+    switch (token === null || token === void 0 ? void 0 : token.type) {
+        case 'alias':
+        case 'scalar':
+        case 'single-quoted-scalar':
+        case 'double-quoted-scalar':
+        case 'flow-collection':
+            return true;
+        default:
+            return false;
+    }
+}
+function getPrevProps(parent) {
+    var _a;
+    switch (parent.type) {
+        case 'document':
+            return parent.start;
+        case 'block-map': {
+            const it = parent.items[parent.items.length - 1];
+            return (_a = it.sep) !== null && _a !== void 0 ? _a : it.start;
+        }
+        case 'block-seq':
+            return parent.items[parent.items.length - 1].start;
+        /* istanbul ignore next should not happen */
+        default:
+            return [];
+    }
+}
+/** Note: May modify input array */
+function getFirstKeyStartProps(prev) {
+    var _a;
+    if (prev.length === 0)
+        return [];
+    let i = prev.length;
+    loop: while (--i >= 0) {
+        switch (prev[i].type) {
+            case 'doc-start':
+            case 'explicit-key-ind':
+            case 'map-value-ind':
+            case 'seq-item-ind':
+            case 'newline':
+                break loop;
+        }
+    }
+    while (((_a = prev[++i]) === null || _a === void 0 ? void 0 : _a.type) === 'space') {
+        /* loop */
+    }
+    return prev.splice(i, prev.length);
+}
+function fixFlowSeqItems(fc) {
+    if (fc.start.type === 'flow-seq-start') {
+        for (const it of fc.items) {
+            if (it.sep &&
+                !it.value &&
+                !includesToken(it.start, 'explicit-key-ind') &&
+                !includesToken(it.sep, 'map-value-ind')) {
+                if (it.key)
+                    it.value = it.key;
+                delete it.key;
+                if (isFlowToken(it.value)) {
+                    if (it.value.end)
+                        Array.prototype.push.apply(it.value.end, it.sep);
+                    else
+                        it.value.end = it.sep;
+                }
+                else
+                    Array.prototype.push.apply(it.start, it.sep);
+                delete it.sep;
+            }
+        }
+    }
+}
+/**
+ * A YAML concrete syntax tree (CST) parser
+ *
+ * ```ts
+ * const src: string = ...
+ * for (const token of new Parser().parse(src)) {
+ *   // token: Token
+ * }
+ * ```
+ *
+ * To use the parser with a user-provided lexer:
+ *
+ * ```ts
+ * function* parse(source: string, lexer: Lexer) {
+ *   const parser = new Parser()
+ *   for (const lexeme of lexer.lex(source))
+ *     yield* parser.next(lexeme)
+ *   yield* parser.end()
+ * }
+ *
+ * const src: string = ...
+ * const lexer = new Lexer()
+ * for (const token of parse(src, lexer)) {
+ *   // token: Token
+ * }
+ * ```
+ */
+class Parser {
+    /**
+     * @param onNewLine - If defined, called separately with the start position of
+     *   each new line (in `parse()`, including the start of input).
+     */
+    constructor(onNewLine) {
+        /** If true, space and sequence indicators count as indentation */
+        this.atNewLine = true;
+        /** If true, next token is a scalar value */
+        this.atScalar = false;
+        /** Current indentation level */
+        this.indent = 0;
+        /** Current offset since the start of parsing */
+        this.offset = 0;
+        /** On the same line with a block map key */
+        this.onKeyLine = false;
+        /** Top indicates the node that's currently being built */
+        this.stack = [];
+        /** The source of the current token, set in parse() */
+        this.source = '';
+        /** The type of the current token, set in parse() */
+        this.type = '';
+        // Must be defined after `next()`
+        this.lexer = new lexer.Lexer();
+        this.onNewLine = onNewLine;
+    }
+    /**
+     * Parse `source` as a YAML stream.
+     * If `incomplete`, a part of the last line may be left as a buffer for the next call.
+     *
+     * Errors are not thrown, but yielded as `{ type: 'error', message }` tokens.
+     *
+     * @returns A generator of tokens representing each directive, document, and other structure.
+     */
+    *parse(source, incomplete = false) {
+        if (this.onNewLine && this.offset === 0)
+            this.onNewLine(0);
+        for (const lexeme of this.lexer.lex(source, incomplete))
+            yield* this.next(lexeme);
+        if (!incomplete)
+            yield* this.end();
+    }
+    /**
+     * Advance the parser by the `source` of one lexical token.
+     */
+    *next(source) {
+        this.source = source;
+        if (process.env.LOG_TOKENS)
+            console.log('|', cst.prettyToken(source));
+        if (this.atScalar) {
+            this.atScalar = false;
+            yield* this.step();
+            this.offset += source.length;
+            return;
+        }
+        const type = cst.tokenType(source);
+        if (!type) {
+            const message = `Not a YAML token: ${source}`;
+            yield* this.pop({ type: 'error', offset: this.offset, message, source });
+            this.offset += source.length;
+        }
+        else if (type === 'scalar') {
+            this.atNewLine = false;
+            this.atScalar = true;
+            this.type = 'scalar';
+        }
+        else {
+            this.type = type;
+            yield* this.step();
+            switch (type) {
+                case 'newline':
+                    this.atNewLine = true;
+                    this.indent = 0;
+                    if (this.onNewLine)
+                        this.onNewLine(this.offset + source.length);
+                    break;
+                case 'space':
+                    if (this.atNewLine && source[0] === ' ')
+                        this.indent += source.length;
+                    break;
+                case 'explicit-key-ind':
+                case 'map-value-ind':
+                case 'seq-item-ind':
+                    if (this.atNewLine)
+                        this.indent += source.length;
+                    break;
+                case 'doc-mode':
+                case 'flow-error-end':
+                    return;
+                default:
+                    this.atNewLine = false;
+            }
+            this.offset += source.length;
+        }
+    }
+    /** Call at end of input to push out any remaining constructions */
+    *end() {
+        while (this.stack.length > 0)
+            yield* this.pop();
+    }
+    get sourceToken() {
+        const st = {
+            type: this.type,
+            offset: this.offset,
+            indent: this.indent,
+            source: this.source
+        };
+        return st;
+    }
+    *step() {
+        const top = this.peek(1);
+        if (this.type === 'doc-end' && (!top || top.type !== 'doc-end')) {
+            while (this.stack.length > 0)
+                yield* this.pop();
+            this.stack.push({
+                type: 'doc-end',
+                offset: this.offset,
+                source: this.source
+            });
+            return;
+        }
+        if (!top)
+            return yield* this.stream();
+        switch (top.type) {
+            case 'document':
+                return yield* this.document(top);
+            case 'alias':
+            case 'scalar':
+            case 'single-quoted-scalar':
+            case 'double-quoted-scalar':
+                return yield* this.scalar(top);
+            case 'block-scalar':
+                return yield* this.blockScalar(top);
+            case 'block-map':
+                return yield* this.blockMap(top);
+            case 'block-seq':
+                return yield* this.blockSequence(top);
+            case 'flow-collection':
+                return yield* this.flowCollection(top);
+            case 'doc-end':
+                return yield* this.documentEnd(top);
+        }
+        /* istanbul ignore next should not happen */
+        yield* this.pop();
+    }
+    peek(n) {
+        return this.stack[this.stack.length - n];
+    }
+    *pop(error) {
+        const token = error !== null && error !== void 0 ? error : this.stack.pop();
+        /* istanbul ignore if should not happen */
+        if (!token) {
+            const message = 'Tried to pop an empty stack';
+            yield { type: 'error', offset: this.offset, source: '', message };
+        }
+        else if (this.stack.length === 0) {
+            yield token;
+        }
+        else {
+            const top = this.peek(1);
+            if (token.type === 'block-scalar') {
+                // Block scalars use their parent rather than header indent
+                token.indent = 'indent' in top ? top.indent : 0;
+            }
+            else if (token.type === 'flow-collection' && top.type === 'document') {
+                // Ignore all indent for top-level flow collections
+                token.indent = 0;
+            }
+            if (token.type === 'flow-collection')
+                fixFlowSeqItems(token);
+            switch (top.type) {
+                case 'document':
+                    top.value = token;
+                    break;
+                case 'block-scalar':
+                    top.props.push(token); // error
+                    break;
+                case 'block-map': {
+                    const it = top.items[top.items.length - 1];
+                    if (it.value) {
+                        top.items.push({ start: [], key: token, sep: [] });
+                        this.onKeyLine = true;
+                        return;
+                    }
+                    else if (it.sep) {
+                        it.value = token;
+                    }
+                    else {
+                        Object.assign(it, { key: token, sep: [] });
+                        this.onKeyLine = !includesToken(it.start, 'explicit-key-ind');
+                        return;
+                    }
+                    break;
+                }
+                case 'block-seq': {
+                    const it = top.items[top.items.length - 1];
+                    if (it.value)
+                        top.items.push({ start: [], value: token });
+                    else
+                        it.value = token;
+                    break;
+                }
+                case 'flow-collection': {
+                    const it = top.items[top.items.length - 1];
+                    if (!it || it.value)
+                        top.items.push({ start: [], key: token, sep: [] });
+                    else if (it.sep)
+                        it.value = token;
+                    else
+                        Object.assign(it, { key: token, sep: [] });
+                    return;
+                }
+                /* istanbul ignore next should not happen */
+                default:
+                    yield* this.pop();
+                    yield* this.pop(token);
+            }
+            if ((top.type === 'document' ||
+                top.type === 'block-map' ||
+                top.type === 'block-seq') &&
+                (token.type === 'block-map' || token.type === 'block-seq')) {
+                const last = token.items[token.items.length - 1];
+                if (last &&
+                    !last.sep &&
+                    !last.value &&
+                    last.start.length > 0 &&
+                    findNonEmptyIndex(last.start) === -1 &&
+                    (token.indent === 0 ||
+                        last.start.every(st => st.type !== 'comment' || st.indent < token.indent))) {
+                    if (top.type === 'document')
+                        top.end = last.start;
+                    else
+                        top.items.push({ start: last.start });
+                    token.items.splice(-1, 1);
+                }
+            }
+        }
+    }
+    *stream() {
+        switch (this.type) {
+            case 'directive-line':
+                yield { type: 'directive', offset: this.offset, source: this.source };
+                return;
+            case 'byte-order-mark':
+            case 'space':
+            case 'comment':
+            case 'newline':
+                yield this.sourceToken;
+                return;
+            case 'doc-mode':
+            case 'doc-start': {
+                const doc = {
+                    type: 'document',
+                    offset: this.offset,
+                    start: []
+                };
+                if (this.type === 'doc-start')
+                    doc.start.push(this.sourceToken);
+                this.stack.push(doc);
+                return;
+            }
+        }
+        yield {
+            type: 'error',
+            offset: this.offset,
+            message: `Unexpected ${this.type} token in YAML stream`,
+            source: this.source
+        };
+    }
+    *document(doc) {
+        if (doc.value)
+            return yield* this.lineEnd(doc);
+        switch (this.type) {
+            case 'doc-start': {
+                if (findNonEmptyIndex(doc.start) !== -1) {
+                    yield* this.pop();
+                    yield* this.step();
+                }
+                else
+                    doc.start.push(this.sourceToken);
+                return;
+            }
+            case 'anchor':
+            case 'tag':
+            case 'space':
+            case 'comment':
+            case 'newline':
+                doc.start.push(this.sourceToken);
+                return;
+        }
+        const bv = this.startBlockValue(doc);
+        if (bv)
+            this.stack.push(bv);
+        else {
+            yield {
+                type: 'error',
+                offset: this.offset,
+                message: `Unexpected ${this.type} token in YAML document`,
+                source: this.source
+            };
+        }
+    }
+    *scalar(scalar) {
+        if (this.type === 'map-value-ind') {
+            const prev = getPrevProps(this.peek(2));
+            const start = getFirstKeyStartProps(prev);
+            let sep;
+            if (scalar.end) {
+                sep = scalar.end;
+                sep.push(this.sourceToken);
+                delete scalar.end;
+            }
+            else
+                sep = [this.sourceToken];
+            const map = {
+                type: 'block-map',
+                offset: scalar.offset,
+                indent: scalar.indent,
+                items: [{ start, key: scalar, sep }]
+            };
+            this.onKeyLine = true;
+            this.stack[this.stack.length - 1] = map;
+        }
+        else
+            yield* this.lineEnd(scalar);
+    }
+    *blockScalar(scalar) {
+        switch (this.type) {
+            case 'space':
+            case 'comment':
+            case 'newline':
+                scalar.props.push(this.sourceToken);
+                return;
+            case 'scalar':
+                scalar.source = this.source;
+                // block-scalar source includes trailing newline
+                this.atNewLine = true;
+                this.indent = 0;
+                if (this.onNewLine) {
+                    let nl = this.source.indexOf('\n') + 1;
+                    while (nl !== 0) {
+                        this.onNewLine(this.offset + nl);
+                        nl = this.source.indexOf('\n', nl) + 1;
+                    }
+                }
+                yield* this.pop();
+                break;
+            /* istanbul ignore next should not happen */
+            default:
+                yield* this.pop();
+                yield* this.step();
+        }
+    }
+    *blockMap(map) {
+        var _a;
+        const it = map.items[map.items.length - 1];
+        // it.sep is true-ish if pair already has key or : separator
+        switch (this.type) {
+            case 'newline':
+                this.onKeyLine = false;
+                if (it.value) {
+                    const end = 'end' in it.value ? it.value.end : undefined;
+                    const last = Array.isArray(end) ? end[end.length - 1] : undefined;
+                    if ((last === null || last === void 0 ? void 0 : last.type) === 'comment')
+                        end === null || end === void 0 ? void 0 : end.push(this.sourceToken);
+                    else
+                        map.items.push({ start: [this.sourceToken] });
+                }
+                else if (it.sep) {
+                    it.sep.push(this.sourceToken);
+                }
+                else {
+                    it.start.push(this.sourceToken);
+                }
+                return;
+            case 'space':
+            case 'comment':
+                if (it.value) {
+                    map.items.push({ start: [this.sourceToken] });
+                }
+                else if (it.sep) {
+                    it.sep.push(this.sourceToken);
+                }
+                else {
+                    if (this.atIndentedComment(it.start, map.indent)) {
+                        const prev = map.items[map.items.length - 2];
+                        const end = (_a = prev === null || prev === void 0 ? void 0 : prev.value) === null || _a === void 0 ? void 0 : _a.end;
+                        if (Array.isArray(end)) {
+                            Array.prototype.push.apply(end, it.start);
+                            end.push(this.sourceToken);
+                            map.items.pop();
+                            return;
+                        }
+                    }
+                    it.start.push(this.sourceToken);
+                }
+                return;
+        }
+        if (this.indent >= map.indent) {
+            const atNextItem = !this.onKeyLine && this.indent === map.indent && it.sep;
+            // For empty nodes, assign newline-separated not indented empty tokens to following node
+            let start = [];
+            if (atNextItem && it.sep && !it.value) {
+                const nl = [];
+                for (let i = 0; i < it.sep.length; ++i) {
+                    const st = it.sep[i];
+                    switch (st.type) {
+                        case 'newline':
+                            nl.push(i);
+                            break;
+                        case 'space':
+                            break;
+                        case 'comment':
+                            if (st.indent > map.indent)
+                                nl.length = 0;
+                            break;
+                        default:
+                            nl.length = 0;
+                    }
+                }
+                if (nl.length >= 2)
+                    start = it.sep.splice(nl[1]);
+            }
+            switch (this.type) {
+                case 'anchor':
+                case 'tag':
+                    if (atNextItem || it.value) {
+                        start.push(this.sourceToken);
+                        map.items.push({ start });
+                        this.onKeyLine = true;
+                    }
+                    else if (it.sep) {
+                        it.sep.push(this.sourceToken);
+                    }
+                    else {
+                        it.start.push(this.sourceToken);
+                    }
+                    return;
+                case 'explicit-key-ind':
+                    if (!it.sep && !includesToken(it.start, 'explicit-key-ind')) {
+                        it.start.push(this.sourceToken);
+                    }
+                    else if (atNextItem || it.value) {
+                        start.push(this.sourceToken);
+                        map.items.push({ start });
+                    }
+                    else {
+                        this.stack.push({
+                            type: 'block-map',
+                            offset: this.offset,
+                            indent: this.indent,
+                            items: [{ start: [this.sourceToken] }]
+                        });
+                    }
+                    this.onKeyLine = true;
+                    return;
+                case 'map-value-ind':
+                    if (includesToken(it.start, 'explicit-key-ind')) {
+                        if (!it.sep) {
+                            if (includesToken(it.start, 'newline')) {
+                                Object.assign(it, { key: null, sep: [this.sourceToken] });
+                            }
+                            else {
+                                const start = getFirstKeyStartProps(it.start);
+                                this.stack.push({
+                                    type: 'block-map',
+                                    offset: this.offset,
+                                    indent: this.indent,
+                                    items: [{ start, key: null, sep: [this.sourceToken] }]
+                                });
+                            }
+                        }
+                        else if (it.value) {
+                            map.items.push({ start: [], key: null, sep: [this.sourceToken] });
+                        }
+                        else if (includesToken(it.sep, 'map-value-ind')) {
+                            this.stack.push({
+                                type: 'block-map',
+                                offset: this.offset,
+                                indent: this.indent,
+                                items: [{ start, key: null, sep: [this.sourceToken] }]
+                            });
+                        }
+                        else if (isFlowToken(it.key) &&
+                            !includesToken(it.sep, 'newline')) {
+                            const start = getFirstKeyStartProps(it.start);
+                            const key = it.key;
+                            const sep = it.sep;
+                            sep.push(this.sourceToken);
+                            // @ts-expect-error type guard is wrong here
+                            delete it.key, delete it.sep;
+                            this.stack.push({
+                                type: 'block-map',
+                                offset: this.offset,
+                                indent: this.indent,
+                                items: [{ start, key, sep }]
+                            });
+                        }
+                        else if (start.length > 0) {
+                            // Not actually at next item
+                            it.sep = it.sep.concat(start, this.sourceToken);
+                        }
+                        else {
+                            it.sep.push(this.sourceToken);
+                        }
+                    }
+                    else {
+                        if (!it.sep) {
+                            Object.assign(it, { key: null, sep: [this.sourceToken] });
+                        }
+                        else if (it.value || atNextItem) {
+                            map.items.push({ start, key: null, sep: [this.sourceToken] });
+                        }
+                        else if (includesToken(it.sep, 'map-value-ind')) {
+                            this.stack.push({
+                                type: 'block-map',
+                                offset: this.offset,
+                                indent: this.indent,
+                                items: [{ start: [], key: null, sep: [this.sourceToken] }]
+                            });
+                        }
+                        else {
+                            it.sep.push(this.sourceToken);
+                        }
+                    }
+                    this.onKeyLine = true;
+                    return;
+                case 'alias':
+                case 'scalar':
+                case 'single-quoted-scalar':
+                case 'double-quoted-scalar': {
+                    const fs = this.flowScalar(this.type);
+                    if (atNextItem || it.value) {
+                        map.items.push({ start, key: fs, sep: [] });
+                        this.onKeyLine = true;
+                    }
+                    else if (it.sep) {
+                        this.stack.push(fs);
+                    }
+                    else {
+                        Object.assign(it, { key: fs, sep: [] });
+                        this.onKeyLine = true;
+                    }
+                    return;
+                }
+                default: {
+                    const bv = this.startBlockValue(map);
+                    if (bv) {
+                        if (atNextItem &&
+                            bv.type !== 'block-seq' &&
+                            includesToken(it.start, 'explicit-key-ind')) {
+                            map.items.push({ start });
+                        }
+                        this.stack.push(bv);
+                        return;
+                    }
+                }
+            }
+        }
+        yield* this.pop();
+        yield* this.step();
+    }
+    *blockSequence(seq) {
+        var _a;
+        const it = seq.items[seq.items.length - 1];
+        switch (this.type) {
+            case 'newline':
+                if (it.value) {
+                    const end = 'end' in it.value ? it.value.end : undefined;
+                    const last = Array.isArray(end) ? end[end.length - 1] : undefined;
+                    if ((last === null || last === void 0 ? void 0 : last.type) === 'comment')
+                        end === null || end === void 0 ? void 0 : end.push(this.sourceToken);
+                    else
+                        seq.items.push({ start: [this.sourceToken] });
+                }
+                else
+                    it.start.push(this.sourceToken);
+                return;
+            case 'space':
+            case 'comment':
+                if (it.value)
+                    seq.items.push({ start: [this.sourceToken] });
+                else {
+                    if (this.atIndentedComment(it.start, seq.indent)) {
+                        const prev = seq.items[seq.items.length - 2];
+                        const end = (_a = prev === null || prev === void 0 ? void 0 : prev.value) === null || _a === void 0 ? void 0 : _a.end;
+                        if (Array.isArray(end)) {
+                            Array.prototype.push.apply(end, it.start);
+                            end.push(this.sourceToken);
+                            seq.items.pop();
+                            return;
+                        }
+                    }
+                    it.start.push(this.sourceToken);
+                }
+                return;
+            case 'anchor':
+            case 'tag':
+                if (it.value || this.indent <= seq.indent)
+                    break;
+                it.start.push(this.sourceToken);
+                return;
+            case 'seq-item-ind':
+                if (this.indent !== seq.indent)
+                    break;
+                if (it.value || includesToken(it.start, 'seq-item-ind'))
+                    seq.items.push({ start: [this.sourceToken] });
+                else
+                    it.start.push(this.sourceToken);
+                return;
+        }
+        if (this.indent > seq.indent) {
+            const bv = this.startBlockValue(seq);
+            if (bv) {
+                this.stack.push(bv);
+                return;
+            }
+        }
+        yield* this.pop();
+        yield* this.step();
+    }
+    *flowCollection(fc) {
+        const it = fc.items[fc.items.length - 1];
+        if (this.type === 'flow-error-end') {
+            let top;
+            do {
+                yield* this.pop();
+                top = this.peek(1);
+            } while (top && top.type === 'flow-collection');
+        }
+        else if (fc.end.length === 0) {
+            switch (this.type) {
+                case 'comma':
+                case 'explicit-key-ind':
+                    if (!it || it.sep)
+                        fc.items.push({ start: [this.sourceToken] });
+                    else
+                        it.start.push(this.sourceToken);
+                    return;
+                case 'map-value-ind':
+                    if (!it || it.value)
+                        fc.items.push({ start: [], key: null, sep: [this.sourceToken] });
+                    else if (it.sep)
+                        it.sep.push(this.sourceToken);
+                    else
+                        Object.assign(it, { key: null, sep: [this.sourceToken] });
+                    return;
+                case 'space':
+                case 'comment':
+                case 'newline':
+                case 'anchor':
+                case 'tag':
+                    if (!it || it.value)
+                        fc.items.push({ start: [this.sourceToken] });
+                    else if (it.sep)
+                        it.sep.push(this.sourceToken);
+                    else
+                        it.start.push(this.sourceToken);
+                    return;
+                case 'alias':
+                case 'scalar':
+                case 'single-quoted-scalar':
+                case 'double-quoted-scalar': {
+                    const fs = this.flowScalar(this.type);
+                    if (!it || it.value)
+                        fc.items.push({ start: [], key: fs, sep: [] });
+                    else if (it.sep)
+                        this.stack.push(fs);
+                    else
+                        Object.assign(it, { key: fs, sep: [] });
+                    return;
+                }
+                case 'flow-map-end':
+                case 'flow-seq-end':
+                    fc.end.push(this.sourceToken);
+                    return;
+            }
+            const bv = this.startBlockValue(fc);
+            /* istanbul ignore else should not happen */
+            if (bv)
+                this.stack.push(bv);
+            else {
+                yield* this.pop();
+                yield* this.step();
+            }
+        }
+        else {
+            const parent = this.peek(2);
+            if (parent.type === 'block-map' &&
+                ((this.type === 'map-value-ind' && parent.indent === fc.indent) ||
+                    (this.type === 'newline' &&
+                        !parent.items[parent.items.length - 1].sep))) {
+                yield* this.pop();
+                yield* this.step();
+            }
+            else if (this.type === 'map-value-ind' &&
+                parent.type !== 'flow-collection') {
+                const prev = getPrevProps(parent);
+                const start = getFirstKeyStartProps(prev);
+                fixFlowSeqItems(fc);
+                const sep = fc.end.splice(1, fc.end.length);
+                sep.push(this.sourceToken);
+                const map = {
+                    type: 'block-map',
+                    offset: fc.offset,
+                    indent: fc.indent,
+                    items: [{ start, key: fc, sep }]
+                };
+                this.onKeyLine = true;
+                this.stack[this.stack.length - 1] = map;
+            }
+            else {
+                yield* this.lineEnd(fc);
+            }
+        }
+    }
+    flowScalar(type) {
+        if (this.onNewLine) {
+            let nl = this.source.indexOf('\n') + 1;
+            while (nl !== 0) {
+                this.onNewLine(this.offset + nl);
+                nl = this.source.indexOf('\n', nl) + 1;
+            }
+        }
+        return {
+            type,
+            offset: this.offset,
+            indent: this.indent,
+            source: this.source
+        };
+    }
+    startBlockValue(parent) {
+        switch (this.type) {
+            case 'alias':
+            case 'scalar':
+            case 'single-quoted-scalar':
+            case 'double-quoted-scalar':
+                return this.flowScalar(this.type);
+            case 'block-scalar-header':
+                return {
+                    type: 'block-scalar',
+                    offset: this.offset,
+                    indent: this.indent,
+                    props: [this.sourceToken],
+                    source: ''
+                };
+            case 'flow-map-start':
+            case 'flow-seq-start':
+                return {
+                    type: 'flow-collection',
+                    offset: this.offset,
+                    indent: this.indent,
+                    start: this.sourceToken,
+                    items: [],
+                    end: []
+                };
+            case 'seq-item-ind':
+                return {
+                    type: 'block-seq',
+                    offset: this.offset,
+                    indent: this.indent,
+                    items: [{ start: [this.sourceToken] }]
+                };
+            case 'explicit-key-ind': {
+                this.onKeyLine = true;
+                const prev = getPrevProps(parent);
+                const start = getFirstKeyStartProps(prev);
+                start.push(this.sourceToken);
+                return {
+                    type: 'block-map',
+                    offset: this.offset,
+                    indent: this.indent,
+                    items: [{ start }]
+                };
+            }
+            case 'map-value-ind': {
+                this.onKeyLine = true;
+                const prev = getPrevProps(parent);
+                const start = getFirstKeyStartProps(prev);
+                return {
+                    type: 'block-map',
+                    offset: this.offset,
+                    indent: this.indent,
+                    items: [{ start, key: null, sep: [this.sourceToken] }]
+                };
+            }
+        }
+        return null;
+    }
+    atIndentedComment(start, indent) {
+        if (this.type !== 'comment')
+            return false;
+        if (this.indent <= indent)
+            return false;
+        return start.every(st => st.type === 'newline' || st.type === 'space');
+    }
+    *documentEnd(docEnd) {
+        if (this.type !== 'doc-mode') {
+            if (docEnd.end)
+                docEnd.end.push(this.sourceToken);
+            else
+                docEnd.end = [this.sourceToken];
+            if (this.type === 'newline')
+                yield* this.pop();
+        }
+    }
+    *lineEnd(token) {
+        switch (this.type) {
+            case 'comma':
+            case 'doc-start':
+            case 'doc-end':
+            case 'flow-seq-end':
+            case 'flow-map-end':
+            case 'map-value-ind':
+                yield* this.pop();
+                yield* this.step();
+                break;
+            case 'newline':
+                this.onKeyLine = false;
+            // fallthrough
+            case 'space':
+            case 'comment':
+            default:
+                // all other values are errors
+                if (token.end)
+                    token.end.push(this.sourceToken);
+                else
+                    token.end = [this.sourceToken];
+                if (this.type === 'newline')
+                    yield* this.pop();
+        }
+    }
+}
+
+exports.Parser = Parser;