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resolveSeq-d03cb037.js
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Tue, Feb 11, 08:36

resolveSeq-d03cb037.js
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'use strict';
var PlainValue = require('./PlainValue-ec8e588e.js');
function addCommentBefore(str, indent, comment) {
if (!comment) return str;
const cc = comment.replace(/[\s\S]^/gm, `$&${indent}#`);
return `#${cc}\n${indent}${str}`;
}
function addComment(str, indent, comment) {
return !comment ? str : comment.indexOf('\n') === -1 ? `${str} #${comment}` : `${str}\n` + comment.replace(/^/gm, `${indent || ''}#`);
}
class Node {}
function toJSON(value, arg, ctx) {
if (Array.isArray(value)) return value.map((v, i) => toJSON(v, String(i), ctx));
if (value && typeof value.toJSON === 'function') {
const anchor = ctx && ctx.anchors && ctx.anchors.get(value);
if (anchor) ctx.onCreate = res => {
anchor.res = res;
delete ctx.onCreate;
};
const res = value.toJSON(arg, ctx);
if (anchor && ctx.onCreate) ctx.onCreate(res);
return res;
}
if ((!ctx || !ctx.keep) && typeof value === 'bigint') return Number(value);
return value;
}
class Scalar extends Node {
constructor(value) {
super();
this.value = value;
}
toJSON(arg, ctx) {
return ctx && ctx.keep ? this.value : toJSON(this.value, arg, ctx);
}
toString() {
return String(this.value);
}
}
function collectionFromPath(schema, path, value) {
let v = value;
for (let i = path.length - 1; i >= 0; --i) {
const k = path[i];
if (Number.isInteger(k) && k >= 0) {
const a = [];
a[k] = v;
v = a;
} else {
const o = {};
Object.defineProperty(o, k, {
value: v,
writable: true,
enumerable: true,
configurable: true
});
v = o;
}
}
return schema.createNode(v, false);
} // null, undefined, or an empty non-string iterable (e.g. [])
const isEmptyPath = path => path == null || typeof path === 'object' && path[Symbol.iterator]().next().done;
class Collection extends Node {
constructor(schema) {
super();
PlainValue._defineProperty(this, "items", []);
this.schema = schema;
}
addIn(path, value) {
if (isEmptyPath(path)) this.add(value);else {
const [key, ...rest] = path;
const node = this.get(key, true);
if (node instanceof Collection) node.addIn(rest, value);else if (node === undefined && this.schema) this.set(key, collectionFromPath(this.schema, rest, value));else throw new Error(`Expected YAML collection at ${key}. Remaining path: ${rest}`);
}
}
deleteIn([key, ...rest]) {
if (rest.length === 0) return this.delete(key);
const node = this.get(key, true);
if (node instanceof Collection) return node.deleteIn(rest);else throw new Error(`Expected YAML collection at ${key}. Remaining path: ${rest}`);
}
getIn([key, ...rest], keepScalar) {
const node = this.get(key, true);
if (rest.length === 0) return !keepScalar && node instanceof Scalar ? node.value : node;else return node instanceof Collection ? node.getIn(rest, keepScalar) : undefined;
}
hasAllNullValues() {
return this.items.every(node => {
if (!node || node.type !== 'PAIR') return false;
const n = node.value;
return n == null || n instanceof Scalar && n.value == null && !n.commentBefore && !n.comment && !n.tag;
});
}
hasIn([key, ...rest]) {
if (rest.length === 0) return this.has(key);
const node = this.get(key, true);
return node instanceof Collection ? node.hasIn(rest) : false;
}
setIn([key, ...rest], value) {
if (rest.length === 0) {
this.set(key, value);
} else {
const node = this.get(key, true);
if (node instanceof Collection) node.setIn(rest, value);else if (node === undefined && this.schema) this.set(key, collectionFromPath(this.schema, rest, value));else throw new Error(`Expected YAML collection at ${key}. Remaining path: ${rest}`);
}
} // overridden in implementations
/* istanbul ignore next */
toJSON() {
return null;
}
toString(ctx, {
blockItem,
flowChars,
isMap,
itemIndent
}, onComment, onChompKeep) {
const {
indent,
indentStep,
stringify
} = ctx;
const inFlow = this.type === PlainValue.Type.FLOW_MAP || this.type === PlainValue.Type.FLOW_SEQ || ctx.inFlow;
if (inFlow) itemIndent += indentStep;
const allNullValues = isMap && this.hasAllNullValues();
ctx = Object.assign({}, ctx, {
allNullValues,
indent: itemIndent,
inFlow,
type: null
});
let chompKeep = false;
let hasItemWithNewLine = false;
const nodes = this.items.reduce((nodes, item, i) => {
let comment;
if (item) {
if (!chompKeep && item.spaceBefore) nodes.push({
type: 'comment',
str: ''
});
if (item.commentBefore) item.commentBefore.match(/^.*$/gm).forEach(line => {
nodes.push({
type: 'comment',
str: `#${line}`
});
});
if (item.comment) comment = item.comment;
if (inFlow && (!chompKeep && item.spaceBefore || item.commentBefore || item.comment || item.key && (item.key.commentBefore || item.key.comment) || item.value && (item.value.commentBefore || item.value.comment))) hasItemWithNewLine = true;
}
chompKeep = false;
let str = stringify(item, ctx, () => comment = null, () => chompKeep = true);
if (inFlow && !hasItemWithNewLine && str.includes('\n')) hasItemWithNewLine = true;
if (inFlow && i < this.items.length - 1) str += ',';
str = addComment(str, itemIndent, comment);
if (chompKeep && (comment || inFlow)) chompKeep = false;
nodes.push({
type: 'item',
str
});
return nodes;
}, []);
let str;
if (nodes.length === 0) {
str = flowChars.start + flowChars.end;
} else if (inFlow) {
const {
start,
end
} = flowChars;
const strings = nodes.map(n => n.str);
if (hasItemWithNewLine || strings.reduce((sum, str) => sum + str.length + 2, 2) > Collection.maxFlowStringSingleLineLength) {
str = start;
for (const s of strings) {
str += s ? `\n${indentStep}${indent}${s}` : '\n';
}
str += `\n${indent}${end}`;
} else {
str = `${start} ${strings.join(' ')} ${end}`;
}
} else {
const strings = nodes.map(blockItem);
str = strings.shift();
for (const s of strings) str += s ? `\n${indent}${s}` : '\n';
}
if (this.comment) {
str += '\n' + this.comment.replace(/^/gm, `${indent}#`);
if (onComment) onComment();
} else if (chompKeep && onChompKeep) onChompKeep();
return str;
}
}
PlainValue._defineProperty(Collection, "maxFlowStringSingleLineLength", 60);
function asItemIndex(key) {
let idx = key instanceof Scalar ? key.value : key;
if (idx && typeof idx === 'string') idx = Number(idx);
return Number.isInteger(idx) && idx >= 0 ? idx : null;
}
class YAMLSeq extends Collection {
add(value) {
this.items.push(value);
}
delete(key) {
const idx = asItemIndex(key);
if (typeof idx !== 'number') return false;
const del = this.items.splice(idx, 1);
return del.length > 0;
}
get(key, keepScalar) {
const idx = asItemIndex(key);
if (typeof idx !== 'number') return undefined;
const it = this.items[idx];
return !keepScalar && it instanceof Scalar ? it.value : it;
}
has(key) {
const idx = asItemIndex(key);
return typeof idx === 'number' && idx < this.items.length;
}
set(key, value) {
const idx = asItemIndex(key);
if (typeof idx !== 'number') throw new Error(`Expected a valid index, not ${key}.`);
this.items[idx] = value;
}
toJSON(_, ctx) {
const seq = [];
if (ctx && ctx.onCreate) ctx.onCreate(seq);
let i = 0;
for (const item of this.items) seq.push(toJSON(item, String(i++), ctx));
return seq;
}
toString(ctx, onComment, onChompKeep) {
if (!ctx) return JSON.stringify(this);
return super.toString(ctx, {
blockItem: n => n.type === 'comment' ? n.str : `- ${n.str}`,
flowChars: {
start: '[',
end: ']'
},
isMap: false,
itemIndent: (ctx.indent || '') + ' '
}, onComment, onChompKeep);
}
}
const stringifyKey = (key, jsKey, ctx) => {
if (jsKey === null) return '';
if (typeof jsKey !== 'object') return String(jsKey);
if (key instanceof Node && ctx && ctx.doc) return key.toString({
anchors: Object.create(null),
doc: ctx.doc,
indent: '',
indentStep: ctx.indentStep,
inFlow: true,
inStringifyKey: true,
stringify: ctx.stringify
});
return JSON.stringify(jsKey);
};
class Pair extends Node {
constructor(key, value = null) {
super();
this.key = key;
this.value = value;
this.type = Pair.Type.PAIR;
}
get commentBefore() {
return this.key instanceof Node ? this.key.commentBefore : undefined;
}
set commentBefore(cb) {
if (this.key == null) this.key = new Scalar(null);
if (this.key instanceof Node) this.key.commentBefore = cb;else {
const msg = 'Pair.commentBefore is an alias for Pair.key.commentBefore. To set it, the key must be a Node.';
throw new Error(msg);
}
}
addToJSMap(ctx, map) {
const key = toJSON(this.key, '', ctx);
if (map instanceof Map) {
const value = toJSON(this.value, key, ctx);
map.set(key, value);
} else if (map instanceof Set) {
map.add(key);
} else {
const stringKey = stringifyKey(this.key, key, ctx);
const value = toJSON(this.value, stringKey, ctx);
if (stringKey in map) Object.defineProperty(map, stringKey, {
value,
writable: true,
enumerable: true,
configurable: true
});else map[stringKey] = value;
}
return map;
}
toJSON(_, ctx) {
const pair = ctx && ctx.mapAsMap ? new Map() : {};
return this.addToJSMap(ctx, pair);
}
toString(ctx, onComment, onChompKeep) {
if (!ctx || !ctx.doc) return JSON.stringify(this);
const {
indent: indentSize,
indentSeq,
simpleKeys
} = ctx.doc.options;
let {
key,
value
} = this;
let keyComment = key instanceof Node && key.comment;
if (simpleKeys) {
if (keyComment) {
throw new Error('With simple keys, key nodes cannot have comments');
}
if (key instanceof Collection) {
const msg = 'With simple keys, collection cannot be used as a key value';
throw new Error(msg);
}
}
let explicitKey = !simpleKeys && (!key || keyComment || (key instanceof Node ? key instanceof Collection || key.type === PlainValue.Type.BLOCK_FOLDED || key.type === PlainValue.Type.BLOCK_LITERAL : typeof key === 'object'));
const {
doc,
indent,
indentStep,
stringify
} = ctx;
ctx = Object.assign({}, ctx, {
implicitKey: !explicitKey,
indent: indent + indentStep
});
let chompKeep = false;
let str = stringify(key, ctx, () => keyComment = null, () => chompKeep = true);
str = addComment(str, ctx.indent, keyComment);
if (!explicitKey && str.length > 1024) {
if (simpleKeys) throw new Error('With simple keys, single line scalar must not span more than 1024 characters');
explicitKey = true;
}
if (ctx.allNullValues && !simpleKeys) {
if (this.comment) {
str = addComment(str, ctx.indent, this.comment);
if (onComment) onComment();
} else if (chompKeep && !keyComment && onChompKeep) onChompKeep();
return ctx.inFlow && !explicitKey ? str : `? ${str}`;
}
str = explicitKey ? `? ${str}\n${indent}:` : `${str}:`;
if (this.comment) {
// expected (but not strictly required) to be a single-line comment
str = addComment(str, ctx.indent, this.comment);
if (onComment) onComment();
}
let vcb = '';
let valueComment = null;
if (value instanceof Node) {
if (value.spaceBefore) vcb = '\n';
if (value.commentBefore) {
const cs = value.commentBefore.replace(/^/gm, `${ctx.indent}#`);
vcb += `\n${cs}`;
}
valueComment = value.comment;
} else if (value && typeof value === 'object') {
value = doc.schema.createNode(value, true);
}
ctx.implicitKey = false;
if (!explicitKey && !this.comment && value instanceof Scalar) ctx.indentAtStart = str.length + 1;
chompKeep = false;
if (!indentSeq && indentSize >= 2 && !ctx.inFlow && !explicitKey && value instanceof YAMLSeq && value.type !== PlainValue.Type.FLOW_SEQ && !value.tag && !doc.anchors.getName(value)) {
// If indentSeq === false, consider '- ' as part of indentation where possible
ctx.indent = ctx.indent.substr(2);
}
const valueStr = stringify(value, ctx, () => valueComment = null, () => chompKeep = true);
let ws = ' ';
if (vcb || this.comment) {
ws = `${vcb}\n${ctx.indent}`;
} else if (!explicitKey && value instanceof Collection) {
const flow = valueStr[0] === '[' || valueStr[0] === '{';
if (!flow || valueStr.includes('\n')) ws = `\n${ctx.indent}`;
} else if (valueStr[0] === '\n') ws = '';
if (chompKeep && !valueComment && onChompKeep) onChompKeep();
return addComment(str + ws + valueStr, ctx.indent, valueComment);
}
}
PlainValue._defineProperty(Pair, "Type", {
PAIR: 'PAIR',
MERGE_PAIR: 'MERGE_PAIR'
});
const getAliasCount = (node, anchors) => {
if (node instanceof Alias) {
const anchor = anchors.get(node.source);
return anchor.count * anchor.aliasCount;
} else if (node instanceof Collection) {
let count = 0;
for (const item of node.items) {
const c = getAliasCount(item, anchors);
if (c > count) count = c;
}
return count;
} else if (node instanceof Pair) {
const kc = getAliasCount(node.key, anchors);
const vc = getAliasCount(node.value, anchors);
return Math.max(kc, vc);
}
return 1;
};
class Alias extends Node {
static stringify({
range,
source
}, {
anchors,
doc,
implicitKey,
inStringifyKey
}) {
let anchor = Object.keys(anchors).find(a => anchors[a] === source);
if (!anchor && inStringifyKey) anchor = doc.anchors.getName(source) || doc.anchors.newName();
if (anchor) return `*${anchor}${implicitKey ? ' ' : ''}`;
const msg = doc.anchors.getName(source) ? 'Alias node must be after source node' : 'Source node not found for alias node';
throw new Error(`${msg} [${range}]`);
}
constructor(source) {
super();
this.source = source;
this.type = PlainValue.Type.ALIAS;
}
set tag(t) {
throw new Error('Alias nodes cannot have tags');
}
toJSON(arg, ctx) {
if (!ctx) return toJSON(this.source, arg, ctx);
const {
anchors,
maxAliasCount
} = ctx;
const anchor = anchors.get(this.source);
/* istanbul ignore if */
if (!anchor || anchor.res === undefined) {
const msg = 'This should not happen: Alias anchor was not resolved?';
if (this.cstNode) throw new PlainValue.YAMLReferenceError(this.cstNode, msg);else throw new ReferenceError(msg);
}
if (maxAliasCount >= 0) {
anchor.count += 1;
if (anchor.aliasCount === 0) anchor.aliasCount = getAliasCount(this.source, anchors);
if (anchor.count * anchor.aliasCount > maxAliasCount) {
const msg = 'Excessive alias count indicates a resource exhaustion attack';
if (this.cstNode) throw new PlainValue.YAMLReferenceError(this.cstNode, msg);else throw new ReferenceError(msg);
}
}
return anchor.res;
} // Only called when stringifying an alias mapping key while constructing
// Object output.
toString(ctx) {
return Alias.stringify(this, ctx);
}
}
PlainValue._defineProperty(Alias, "default", true);
function findPair(items, key) {
const k = key instanceof Scalar ? key.value : key;
for (const it of items) {
if (it instanceof Pair) {
if (it.key === key || it.key === k) return it;
if (it.key && it.key.value === k) return it;
}
}
return undefined;
}
class YAMLMap extends Collection {
add(pair, overwrite) {
if (!pair) pair = new Pair(pair);else if (!(pair instanceof Pair)) pair = new Pair(pair.key || pair, pair.value);
const prev = findPair(this.items, pair.key);
const sortEntries = this.schema && this.schema.sortMapEntries;
if (prev) {
if (overwrite) prev.value = pair.value;else throw new Error(`Key ${pair.key} already set`);
} else if (sortEntries) {
const i = this.items.findIndex(item => sortEntries(pair, item) < 0);
if (i === -1) this.items.push(pair);else this.items.splice(i, 0, pair);
} else {
this.items.push(pair);
}
}
delete(key) {
const it = findPair(this.items, key);
if (!it) return false;
const del = this.items.splice(this.items.indexOf(it), 1);
return del.length > 0;
}
get(key, keepScalar) {
const it = findPair(this.items, key);
const node = it && it.value;
return !keepScalar && node instanceof Scalar ? node.value : node;
}
has(key) {
return !!findPair(this.items, key);
}
set(key, value) {
this.add(new Pair(key, value), true);
}
/**
* @param {*} arg ignored
* @param {*} ctx Conversion context, originally set in Document#toJSON()
* @param {Class} Type If set, forces the returned collection type
* @returns {*} Instance of Type, Map, or Object
*/
toJSON(_, ctx, Type) {
const map = Type ? new Type() : ctx && ctx.mapAsMap ? new Map() : {};
if (ctx && ctx.onCreate) ctx.onCreate(map);
for (const item of this.items) item.addToJSMap(ctx, map);
return map;
}
toString(ctx, onComment, onChompKeep) {
if (!ctx) return JSON.stringify(this);
for (const item of this.items) {
if (!(item instanceof Pair)) throw new Error(`Map items must all be pairs; found ${JSON.stringify(item)} instead`);
}
return super.toString(ctx, {
blockItem: n => n.str,
flowChars: {
start: '{',
end: '}'
},
isMap: true,
itemIndent: ctx.indent || ''
}, onComment, onChompKeep);
}
}
const MERGE_KEY = '<<';
class Merge extends Pair {
constructor(pair) {
if (pair instanceof Pair) {
let seq = pair.value;
if (!(seq instanceof YAMLSeq)) {
seq = new YAMLSeq();
seq.items.push(pair.value);
seq.range = pair.value.range;
}
super(pair.key, seq);
this.range = pair.range;
} else {
super(new Scalar(MERGE_KEY), new YAMLSeq());
}
this.type = Pair.Type.MERGE_PAIR;
} // If the value associated with a merge key is a single mapping node, each of
// its key/value pairs is inserted into the current mapping, unless the key
// already exists in it. If the value associated with the merge key is a
// sequence, then this sequence is expected to contain mapping nodes and each
// of these nodes is merged in turn according to its order in the sequence.
// Keys in mapping nodes earlier in the sequence override keys specified in
// later mapping nodes. -- http://yaml.org/type/merge.html
addToJSMap(ctx, map) {
for (const {
source
} of this.value.items) {
if (!(source instanceof YAMLMap)) throw new Error('Merge sources must be maps');
const srcMap = source.toJSON(null, ctx, Map);
for (const [key, value] of srcMap) {
if (map instanceof Map) {
if (!map.has(key)) map.set(key, value);
} else if (map instanceof Set) {
map.add(key);
} else if (!Object.prototype.hasOwnProperty.call(map, key)) {
Object.defineProperty(map, key, {
value,
writable: true,
enumerable: true,
configurable: true
});
}
}
}
return map;
}
toString(ctx, onComment) {
const seq = this.value;
if (seq.items.length > 1) return super.toString(ctx, onComment);
this.value = seq.items[0];
const str = super.toString(ctx, onComment);
this.value = seq;
return str;
}
}
const binaryOptions = {
defaultType: PlainValue.Type.BLOCK_LITERAL,
lineWidth: 76
};
const boolOptions = {
trueStr: 'true',
falseStr: 'false'
};
const intOptions = {
asBigInt: false
};
const nullOptions = {
nullStr: 'null'
};
const strOptions = {
defaultType: PlainValue.Type.PLAIN,
doubleQuoted: {
jsonEncoding: false,
minMultiLineLength: 40
},
fold: {
lineWidth: 80,
minContentWidth: 20
}
};
function resolveScalar(str, tags, scalarFallback) {
for (const {
format,
test,
resolve
} of tags) {
if (test) {
const match = str.match(test);
if (match) {
let res = resolve.apply(null, match);
if (!(res instanceof Scalar)) res = new Scalar(res);
if (format) res.format = format;
return res;
}
}
}
if (scalarFallback) str = scalarFallback(str);
return new Scalar(str);
}
const FOLD_FLOW = 'flow';
const FOLD_BLOCK = 'block';
const FOLD_QUOTED = 'quoted'; // presumes i+1 is at the start of a line
// returns index of last newline in more-indented block
const consumeMoreIndentedLines = (text, i) => {
let ch = text[i + 1];
while (ch === ' ' || ch === '\t') {
do {
ch = text[i += 1];
} while (ch && ch !== '\n');
ch = text[i + 1];
}
return i;
};
/**
* Tries to keep input at up to `lineWidth` characters, splitting only on spaces
* not followed by newlines or spaces unless `mode` is `'quoted'`. Lines are
* terminated with `\n` and started with `indent`.
*
* @param {string} text
* @param {string} indent
* @param {string} [mode='flow'] `'block'` prevents more-indented lines
* from being folded; `'quoted'` allows for `\` escapes, including escaped
* newlines
* @param {Object} options
* @param {number} [options.indentAtStart] Accounts for leading contents on
* the first line, defaulting to `indent.length`
* @param {number} [options.lineWidth=80]
* @param {number} [options.minContentWidth=20] Allow highly indented lines to
* stretch the line width or indent content from the start
* @param {function} options.onFold Called once if the text is folded
* @param {function} options.onFold Called once if any line of text exceeds
* lineWidth characters
*/
function foldFlowLines(text, indent, mode, {
indentAtStart,
lineWidth = 80,
minContentWidth = 20,
onFold,
onOverflow
}) {
if (!lineWidth || lineWidth < 0) return text;
const endStep = Math.max(1 + minContentWidth, 1 + lineWidth - indent.length);
if (text.length <= endStep) return text;
const folds = [];
const escapedFolds = {};
let end = lineWidth - indent.length;
if (typeof indentAtStart === 'number') {
if (indentAtStart > lineWidth - Math.max(2, minContentWidth)) folds.push(0);else end = lineWidth - indentAtStart;
}
let split = undefined;
let prev = undefined;
let overflow = false;
let i = -1;
let escStart = -1;
let escEnd = -1;
if (mode === FOLD_BLOCK) {
i = consumeMoreIndentedLines(text, i);
if (i !== -1) end = i + endStep;
}
for (let ch; ch = text[i += 1];) {
if (mode === FOLD_QUOTED && ch === '\\') {
escStart = i;
switch (text[i + 1]) {
case 'x':
i += 3;
break;
case 'u':
i += 5;
break;
case 'U':
i += 9;
break;
default:
i += 1;
}
escEnd = i;
}
if (ch === '\n') {
if (mode === FOLD_BLOCK) i = consumeMoreIndentedLines(text, i);
end = i + endStep;
split = undefined;
} else {
if (ch === ' ' && prev && prev !== ' ' && prev !== '\n' && prev !== '\t') {
// space surrounded by non-space can be replaced with newline + indent
const next = text[i + 1];
if (next && next !== ' ' && next !== '\n' && next !== '\t') split = i;
}
if (i >= end) {
if (split) {
folds.push(split);
end = split + endStep;
split = undefined;
} else if (mode === FOLD_QUOTED) {
// white-space collected at end may stretch past lineWidth
while (prev === ' ' || prev === '\t') {
prev = ch;
ch = text[i += 1];
overflow = true;
} // Account for newline escape, but don't break preceding escape
const j = i > escEnd + 1 ? i - 2 : escStart - 1; // Bail out if lineWidth & minContentWidth are shorter than an escape string
if (escapedFolds[j]) return text;
folds.push(j);
escapedFolds[j] = true;
end = j + endStep;
split = undefined;
} else {
overflow = true;
}
}
}
prev = ch;
}
if (overflow && onOverflow) onOverflow();
if (folds.length === 0) return text;
if (onFold) onFold();
let res = text.slice(0, folds[0]);
for (let i = 0; i < folds.length; ++i) {
const fold = folds[i];
const end = folds[i + 1] || text.length;
if (fold === 0) res = `\n${indent}${text.slice(0, end)}`;else {
if (mode === FOLD_QUOTED && escapedFolds[fold]) res += `${text[fold]}\\`;
res += `\n${indent}${text.slice(fold + 1, end)}`;
}
}
return res;
}
const getFoldOptions = ({
indentAtStart
}) => indentAtStart ? Object.assign({
indentAtStart
}, strOptions.fold) : strOptions.fold; // Also checks for lines starting with %, as parsing the output as YAML 1.1 will
// presume that's starting a new document.
const containsDocumentMarker = str => /^(%|---|\.\.\.)/m.test(str);
function lineLengthOverLimit(str, lineWidth, indentLength) {
if (!lineWidth || lineWidth < 0) return false;
const limit = lineWidth - indentLength;
const strLen = str.length;
if (strLen <= limit) return false;
for (let i = 0, start = 0; i < strLen; ++i) {
if (str[i] === '\n') {
if (i - start > limit) return true;
start = i + 1;
if (strLen - start <= limit) return false;
}
}
return true;
}
function doubleQuotedString(value, ctx) {
const {
implicitKey
} = ctx;
const {
jsonEncoding,
minMultiLineLength
} = strOptions.doubleQuoted;
const json = JSON.stringify(value);
if (jsonEncoding) return json;
const indent = ctx.indent || (containsDocumentMarker(value) ? ' ' : '');
let str = '';
let start = 0;
for (let i = 0, ch = json[i]; ch; ch = json[++i]) {
if (ch === ' ' && json[i + 1] === '\\' && json[i + 2] === 'n') {
// space before newline needs to be escaped to not be folded
str += json.slice(start, i) + '\\ ';
i += 1;
start = i;
ch = '\\';
}
if (ch === '\\') switch (json[i + 1]) {
case 'u':
{
str += json.slice(start, i);
const code = json.substr(i + 2, 4);
switch (code) {
case '0000':
str += '\\0';
break;
case '0007':
str += '\\a';
break;
case '000b':
str += '\\v';
break;
case '001b':
str += '\\e';
break;
case '0085':
str += '\\N';
break;
case '00a0':
str += '\\_';
break;
case '2028':
str += '\\L';
break;
case '2029':
str += '\\P';
break;
default:
if (code.substr(0, 2) === '00') str += '\\x' + code.substr(2);else str += json.substr(i, 6);
}
i += 5;
start = i + 1;
}
break;
case 'n':
if (implicitKey || json[i + 2] === '"' || json.length < minMultiLineLength) {
i += 1;
} else {
// folding will eat first newline
str += json.slice(start, i) + '\n\n';
while (json[i + 2] === '\\' && json[i + 3] === 'n' && json[i + 4] !== '"') {
str += '\n';
i += 2;
}
str += indent; // space after newline needs to be escaped to not be folded
if (json[i + 2] === ' ') str += '\\';
i += 1;
start = i + 1;
}
break;
default:
i += 1;
}
}
str = start ? str + json.slice(start) : json;
return implicitKey ? str : foldFlowLines(str, indent, FOLD_QUOTED, getFoldOptions(ctx));
}
function singleQuotedString(value, ctx) {
if (ctx.implicitKey) {
if (/\n/.test(value)) return doubleQuotedString(value, ctx);
} else {
// single quoted string can't have leading or trailing whitespace around newline
if (/[ \t]\n|\n[ \t]/.test(value)) return doubleQuotedString(value, ctx);
}
const indent = ctx.indent || (containsDocumentMarker(value) ? ' ' : '');
const res = "'" + value.replace(/'/g, "''").replace(/\n+/g, `$&\n${indent}`) + "'";
return ctx.implicitKey ? res : foldFlowLines(res, indent, FOLD_FLOW, getFoldOptions(ctx));
}
function blockString({
comment,
type,
value
}, ctx, onComment, onChompKeep) {
// 1. Block can't end in whitespace unless the last line is non-empty.
// 2. Strings consisting of only whitespace are best rendered explicitly.
if (/\n[\t ]+$/.test(value) || /^\s*$/.test(value)) {
return doubleQuotedString(value, ctx);
}
const indent = ctx.indent || (ctx.forceBlockIndent || containsDocumentMarker(value) ? ' ' : '');
const indentSize = indent ? '2' : '1'; // root is at -1
const literal = type === PlainValue.Type.BLOCK_FOLDED ? false : type === PlainValue.Type.BLOCK_LITERAL ? true : !lineLengthOverLimit(value, strOptions.fold.lineWidth, indent.length);
let header = literal ? '|' : '>';
if (!value) return header + '\n';
let wsStart = '';
let wsEnd = '';
value = value.replace(/[\n\t ]*$/, ws => {
const n = ws.indexOf('\n');
if (n === -1) {
header += '-'; // strip
} else if (value === ws || n !== ws.length - 1) {
header += '+'; // keep
if (onChompKeep) onChompKeep();
}
wsEnd = ws.replace(/\n$/, '');
return '';
}).replace(/^[\n ]*/, ws => {
if (ws.indexOf(' ') !== -1) header += indentSize;
const m = ws.match(/ +$/);
if (m) {
wsStart = ws.slice(0, -m[0].length);
return m[0];
} else {
wsStart = ws;
return '';
}
});
if (wsEnd) wsEnd = wsEnd.replace(/\n+(?!\n|$)/g, `$&${indent}`);
if (wsStart) wsStart = wsStart.replace(/\n+/g, `$&${indent}`);
if (comment) {
header += ' #' + comment.replace(/ ?[\r\n]+/g, ' ');
if (onComment) onComment();
}
if (!value) return `${header}${indentSize}\n${indent}${wsEnd}`;
if (literal) {
value = value.replace(/\n+/g, `$&${indent}`);
return `${header}\n${indent}${wsStart}${value}${wsEnd}`;
}
value = value.replace(/\n+/g, '\n$&').replace(/(?:^|\n)([\t ].*)(?:([\n\t ]*)\n(?![\n\t ]))?/g, '$1$2') // more-indented lines aren't folded
// ^ ind.line ^ empty ^ capture next empty lines only at end of indent
.replace(/\n+/g, `$&${indent}`);
const body = foldFlowLines(`${wsStart}${value}${wsEnd}`, indent, FOLD_BLOCK, strOptions.fold);
return `${header}\n${indent}${body}`;
}
function plainString(item, ctx, onComment, onChompKeep) {
const {
comment,
type,
value
} = item;
const {
actualString,
implicitKey,
indent,
inFlow
} = ctx;
if (implicitKey && /[\n[\]{},]/.test(value) || inFlow && /[[\]{},]/.test(value)) {
return doubleQuotedString(value, ctx);
}
if (!value || /^[\n\t ,[\]{}#&*!|>'"%@`]|^[?-]$|^[?-][ \t]|[\n:][ \t]|[ \t]\n|[\n\t ]#|[\n\t :]$/.test(value)) {
// not allowed:
// - empty string, '-' or '?'
// - start with an indicator character (except [?:-]) or /[?-] /
// - '\n ', ': ' or ' \n' anywhere
// - '#' not preceded by a non-space char
// - end with ' ' or ':'
return implicitKey || inFlow || value.indexOf('\n') === -1 ? value.indexOf('"') !== -1 && value.indexOf("'") === -1 ? singleQuotedString(value, ctx) : doubleQuotedString(value, ctx) : blockString(item, ctx, onComment, onChompKeep);
}
if (!implicitKey && !inFlow && type !== PlainValue.Type.PLAIN && value.indexOf('\n') !== -1) {
// Where allowed & type not set explicitly, prefer block style for multiline strings
return blockString(item, ctx, onComment, onChompKeep);
}
if (indent === '' && containsDocumentMarker(value)) {
ctx.forceBlockIndent = true;
return blockString(item, ctx, onComment, onChompKeep);
}
const str = value.replace(/\n+/g, `$&\n${indent}`); // Verify that output will be parsed as a string, as e.g. plain numbers and
// booleans get parsed with those types in v1.2 (e.g. '42', 'true' & '0.9e-3'),
// and others in v1.1.
if (actualString) {
const {
tags
} = ctx.doc.schema;
const resolved = resolveScalar(str, tags, tags.scalarFallback).value;
if (typeof resolved !== 'string') return doubleQuotedString(value, ctx);
}
const body = implicitKey ? str : foldFlowLines(str, indent, FOLD_FLOW, getFoldOptions(ctx));
if (comment && !inFlow && (body.indexOf('\n') !== -1 || comment.indexOf('\n') !== -1)) {
if (onComment) onComment();
return addCommentBefore(body, indent, comment);
}
return body;
}
function stringifyString(item, ctx, onComment, onChompKeep) {
const {
defaultType
} = strOptions;
const {
implicitKey,
inFlow
} = ctx;
let {
type,
value
} = item;
if (typeof value !== 'string') {
value = String(value);
item = Object.assign({}, item, {
value
});
}
const _stringify = _type => {
switch (_type) {
case PlainValue.Type.BLOCK_FOLDED:
case PlainValue.Type.BLOCK_LITERAL:
return blockString(item, ctx, onComment, onChompKeep);
case PlainValue.Type.QUOTE_DOUBLE:
return doubleQuotedString(value, ctx);
case PlainValue.Type.QUOTE_SINGLE:
return singleQuotedString(value, ctx);
case PlainValue.Type.PLAIN:
return plainString(item, ctx, onComment, onChompKeep);
default:
return null;
}
};
if (type !== PlainValue.Type.QUOTE_DOUBLE && /[\x00-\x08\x0b-\x1f\x7f-\x9f]/.test(value)) {
// force double quotes on control characters
type = PlainValue.Type.QUOTE_DOUBLE;
} else if ((implicitKey || inFlow) && (type === PlainValue.Type.BLOCK_FOLDED || type === PlainValue.Type.BLOCK_LITERAL)) {
// should not happen; blocks are not valid inside flow containers
type = PlainValue.Type.QUOTE_DOUBLE;
}
let res = _stringify(type);
if (res === null) {
res = _stringify(defaultType);
if (res === null) throw new Error(`Unsupported default string type ${defaultType}`);
}
return res;
}
function stringifyNumber({
format,
minFractionDigits,
tag,
value
}) {
if (typeof value === 'bigint') return String(value);
if (!isFinite(value)) return isNaN(value) ? '.nan' : value < 0 ? '-.inf' : '.inf';
let n = JSON.stringify(value);
if (!format && minFractionDigits && (!tag || tag === 'tag:yaml.org,2002:float') && /^\d/.test(n)) {
let i = n.indexOf('.');
if (i < 0) {
i = n.length;
n += '.';
}
let d = minFractionDigits - (n.length - i - 1);
while (d-- > 0) n += '0';
}
return n;
}
function checkFlowCollectionEnd(errors, cst) {
let char, name;
switch (cst.type) {
case PlainValue.Type.FLOW_MAP:
char = '}';
name = 'flow map';
break;
case PlainValue.Type.FLOW_SEQ:
char = ']';
name = 'flow sequence';
break;
default:
errors.push(new PlainValue.YAMLSemanticError(cst, 'Not a flow collection!?'));
return;
}
let lastItem;
for (let i = cst.items.length - 1; i >= 0; --i) {
const item = cst.items[i];
if (!item || item.type !== PlainValue.Type.COMMENT) {
lastItem = item;
break;
}
}
if (lastItem && lastItem.char !== char) {
const msg = `Expected ${name} to end with ${char}`;
let err;
if (typeof lastItem.offset === 'number') {
err = new PlainValue.YAMLSemanticError(cst, msg);
err.offset = lastItem.offset + 1;
} else {
err = new PlainValue.YAMLSemanticError(lastItem, msg);
if (lastItem.range && lastItem.range.end) err.offset = lastItem.range.end - lastItem.range.start;
}
errors.push(err);
}
}
function checkFlowCommentSpace(errors, comment) {
const prev = comment.context.src[comment.range.start - 1];
if (prev !== '\n' && prev !== '\t' && prev !== ' ') {
const msg = 'Comments must be separated from other tokens by white space characters';
errors.push(new PlainValue.YAMLSemanticError(comment, msg));
}
}
function getLongKeyError(source, key) {
const sk = String(key);
const k = sk.substr(0, 8) + '...' + sk.substr(-8);
return new PlainValue.YAMLSemanticError(source, `The "${k}" key is too long`);
}
function resolveComments(collection, comments) {
for (const {
afterKey,
before,
comment
} of comments) {
let item = collection.items[before];
if (!item) {
if (comment !== undefined) {
if (collection.comment) collection.comment += '\n' + comment;else collection.comment = comment;
}
} else {
if (afterKey && item.value) item = item.value;
if (comment === undefined) {
if (afterKey || !item.commentBefore) item.spaceBefore = true;
} else {
if (item.commentBefore) item.commentBefore += '\n' + comment;else item.commentBefore = comment;
}
}
}
}
// on error, will return { str: string, errors: Error[] }
function resolveString(doc, node) {
const res = node.strValue;
if (!res) return '';
if (typeof res === 'string') return res;
res.errors.forEach(error => {
if (!error.source) error.source = node;
doc.errors.push(error);
});
return res.str;
}
function resolveTagHandle(doc, node) {
const {
handle,
suffix
} = node.tag;
let prefix = doc.tagPrefixes.find(p => p.handle === handle);
if (!prefix) {
const dtp = doc.getDefaults().tagPrefixes;
if (dtp) prefix = dtp.find(p => p.handle === handle);
if (!prefix) throw new PlainValue.YAMLSemanticError(node, `The ${handle} tag handle is non-default and was not declared.`);
}
if (!suffix) throw new PlainValue.YAMLSemanticError(node, `The ${handle} tag has no suffix.`);
if (handle === '!' && (doc.version || doc.options.version) === '1.0') {
if (suffix[0] === '^') {
doc.warnings.push(new PlainValue.YAMLWarning(node, 'YAML 1.0 ^ tag expansion is not supported'));
return suffix;
}
if (/[:/]/.test(suffix)) {
// word/foo -> tag:word.yaml.org,2002:foo
const vocab = suffix.match(/^([a-z0-9-]+)\/(.*)/i);
return vocab ? `tag:${vocab[1]}.yaml.org,2002:${vocab[2]}` : `tag:${suffix}`;
}
}
return prefix.prefix + decodeURIComponent(suffix);
}
function resolveTagName(doc, node) {
const {
tag,
type
} = node;
let nonSpecific = false;
if (tag) {
const {
handle,
suffix,
verbatim
} = tag;
if (verbatim) {
if (verbatim !== '!' && verbatim !== '!!') return verbatim;
const msg = `Verbatim tags aren't resolved, so ${verbatim} is invalid.`;
doc.errors.push(new PlainValue.YAMLSemanticError(node, msg));
} else if (handle === '!' && !suffix) {
nonSpecific = true;
} else {
try {
return resolveTagHandle(doc, node);
} catch (error) {
doc.errors.push(error);
}
}
}
switch (type) {
case PlainValue.Type.BLOCK_FOLDED:
case PlainValue.Type.BLOCK_LITERAL:
case PlainValue.Type.QUOTE_DOUBLE:
case PlainValue.Type.QUOTE_SINGLE:
return PlainValue.defaultTags.STR;
case PlainValue.Type.FLOW_MAP:
case PlainValue.Type.MAP:
return PlainValue.defaultTags.MAP;
case PlainValue.Type.FLOW_SEQ:
case PlainValue.Type.SEQ:
return PlainValue.defaultTags.SEQ;
case PlainValue.Type.PLAIN:
return nonSpecific ? PlainValue.defaultTags.STR : null;
default:
return null;
}
}
function resolveByTagName(doc, node, tagName) {
const {
tags
} = doc.schema;
const matchWithTest = [];
for (const tag of tags) {
if (tag.tag === tagName) {
if (tag.test) matchWithTest.push(tag);else {
const res = tag.resolve(doc, node);
return res instanceof Collection ? res : new Scalar(res);
}
}
}
const str = resolveString(doc, node);
if (typeof str === 'string' && matchWithTest.length > 0) return resolveScalar(str, matchWithTest, tags.scalarFallback);
return null;
}
function getFallbackTagName({
type
}) {
switch (type) {
case PlainValue.Type.FLOW_MAP:
case PlainValue.Type.MAP:
return PlainValue.defaultTags.MAP;
case PlainValue.Type.FLOW_SEQ:
case PlainValue.Type.SEQ:
return PlainValue.defaultTags.SEQ;
default:
return PlainValue.defaultTags.STR;
}
}
function resolveTag(doc, node, tagName) {
try {
const res = resolveByTagName(doc, node, tagName);
if (res) {
if (tagName && node.tag) res.tag = tagName;
return res;
}
} catch (error) {
/* istanbul ignore if */
if (!error.source) error.source = node;
doc.errors.push(error);
return null;
}
try {
const fallback = getFallbackTagName(node);
if (!fallback) throw new Error(`The tag ${tagName} is unavailable`);
const msg = `The tag ${tagName} is unavailable, falling back to ${fallback}`;
doc.warnings.push(new PlainValue.YAMLWarning(node, msg));
const res = resolveByTagName(doc, node, fallback);
res.tag = tagName;
return res;
} catch (error) {
const refError = new PlainValue.YAMLReferenceError(node, error.message);
refError.stack = error.stack;
doc.errors.push(refError);
return null;
}
}
const isCollectionItem = node => {
if (!node) return false;
const {
type
} = node;
return type === PlainValue.Type.MAP_KEY || type === PlainValue.Type.MAP_VALUE || type === PlainValue.Type.SEQ_ITEM;
};
function resolveNodeProps(errors, node) {
const comments = {
before: [],
after: []
};
let hasAnchor = false;
let hasTag = false;
const props = isCollectionItem(node.context.parent) ? node.context.parent.props.concat(node.props) : node.props;
for (const {
start,
end
} of props) {
switch (node.context.src[start]) {
case PlainValue.Char.COMMENT:
{
if (!node.commentHasRequiredWhitespace(start)) {
const msg = 'Comments must be separated from other tokens by white space characters';
errors.push(new PlainValue.YAMLSemanticError(node, msg));
}
const {
header,
valueRange
} = node;
const cc = valueRange && (start > valueRange.start || header && start > header.start) ? comments.after : comments.before;
cc.push(node.context.src.slice(start + 1, end));
break;
}
// Actual anchor & tag resolution is handled by schema, here we just complain
case PlainValue.Char.ANCHOR:
if (hasAnchor) {
const msg = 'A node can have at most one anchor';
errors.push(new PlainValue.YAMLSemanticError(node, msg));
}
hasAnchor = true;
break;
case PlainValue.Char.TAG:
if (hasTag) {
const msg = 'A node can have at most one tag';
errors.push(new PlainValue.YAMLSemanticError(node, msg));
}
hasTag = true;
break;
}
}
return {
comments,
hasAnchor,
hasTag
};
}
function resolveNodeValue(doc, node) {
const {
anchors,
errors,
schema
} = doc;
if (node.type === PlainValue.Type.ALIAS) {
const name = node.rawValue;
const src = anchors.getNode(name);
if (!src) {
const msg = `Aliased anchor not found: ${name}`;
errors.push(new PlainValue.YAMLReferenceError(node, msg));
return null;
} // Lazy resolution for circular references
const res = new Alias(src);
anchors._cstAliases.push(res);
return res;
}
const tagName = resolveTagName(doc, node);
if (tagName) return resolveTag(doc, node, tagName);
if (node.type !== PlainValue.Type.PLAIN) {
const msg = `Failed to resolve ${node.type} node here`;
errors.push(new PlainValue.YAMLSyntaxError(node, msg));
return null;
}
try {
const str = resolveString(doc, node);
return resolveScalar(str, schema.tags, schema.tags.scalarFallback);
} catch (error) {
if (!error.source) error.source = node;
errors.push(error);
return null;
}
} // sets node.resolved on success
function resolveNode(doc, node) {
if (!node) return null;
if (node.error) doc.errors.push(node.error);
const {
comments,
hasAnchor,
hasTag
} = resolveNodeProps(doc.errors, node);
if (hasAnchor) {
const {
anchors
} = doc;
const name = node.anchor;
const prev = anchors.getNode(name); // At this point, aliases for any preceding node with the same anchor
// name have already been resolved, so it may safely be renamed.
if (prev) anchors.map[anchors.newName(name)] = prev; // During parsing, we need to store the CST node in anchors.map as
// anchors need to be available during resolution to allow for
// circular references.
anchors.map[name] = node;
}
if (node.type === PlainValue.Type.ALIAS && (hasAnchor || hasTag)) {
const msg = 'An alias node must not specify any properties';
doc.errors.push(new PlainValue.YAMLSemanticError(node, msg));
}
const res = resolveNodeValue(doc, node);
if (res) {
res.range = [node.range.start, node.range.end];
if (doc.options.keepCstNodes) res.cstNode = node;
if (doc.options.keepNodeTypes) res.type = node.type;
const cb = comments.before.join('\n');
if (cb) {
res.commentBefore = res.commentBefore ? `${res.commentBefore}\n${cb}` : cb;
}
const ca = comments.after.join('\n');
if (ca) res.comment = res.comment ? `${res.comment}\n${ca}` : ca;
}
return node.resolved = res;
}
function resolveMap(doc, cst) {
if (cst.type !== PlainValue.Type.MAP && cst.type !== PlainValue.Type.FLOW_MAP) {
const msg = `A ${cst.type} node cannot be resolved as a mapping`;
doc.errors.push(new PlainValue.YAMLSyntaxError(cst, msg));
return null;
}
const {
comments,
items
} = cst.type === PlainValue.Type.FLOW_MAP ? resolveFlowMapItems(doc, cst) : resolveBlockMapItems(doc, cst);
const map = new YAMLMap();
map.items = items;
resolveComments(map, comments);
let hasCollectionKey = false;
for (let i = 0; i < items.length; ++i) {
const {
key: iKey
} = items[i];
if (iKey instanceof Collection) hasCollectionKey = true;
if (doc.schema.merge && iKey && iKey.value === MERGE_KEY) {
items[i] = new Merge(items[i]);
const sources = items[i].value.items;
let error = null;
sources.some(node => {
if (node instanceof Alias) {
// During parsing, alias sources are CST nodes; to account for
// circular references their resolved values can't be used here.
const {
type
} = node.source;
if (type === PlainValue.Type.MAP || type === PlainValue.Type.FLOW_MAP) return false;
return error = 'Merge nodes aliases can only point to maps';
}
return error = 'Merge nodes can only have Alias nodes as values';
});
if (error) doc.errors.push(new PlainValue.YAMLSemanticError(cst, error));
} else {
for (let j = i + 1; j < items.length; ++j) {
const {
key: jKey
} = items[j];
if (iKey === jKey || iKey && jKey && Object.prototype.hasOwnProperty.call(iKey, 'value') && iKey.value === jKey.value) {
const msg = `Map keys must be unique; "${iKey}" is repeated`;
doc.errors.push(new PlainValue.YAMLSemanticError(cst, msg));
break;
}
}
}
}
if (hasCollectionKey && !doc.options.mapAsMap) {
const warn = 'Keys with collection values will be stringified as YAML due to JS Object restrictions. Use mapAsMap: true to avoid this.';
doc.warnings.push(new PlainValue.YAMLWarning(cst, warn));
}
cst.resolved = map;
return map;
}
const valueHasPairComment = ({
context: {
lineStart,
node,
src
},
props
}) => {
if (props.length === 0) return false;
const {
start
} = props[0];
if (node && start > node.valueRange.start) return false;
if (src[start] !== PlainValue.Char.COMMENT) return false;
for (let i = lineStart; i < start; ++i) if (src[i] === '\n') return false;
return true;
};
function resolvePairComment(item, pair) {
if (!valueHasPairComment(item)) return;
const comment = item.getPropValue(0, PlainValue.Char.COMMENT, true);
let found = false;
const cb = pair.value.commentBefore;
if (cb && cb.startsWith(comment)) {
pair.value.commentBefore = cb.substr(comment.length + 1);
found = true;
} else {
const cc = pair.value.comment;
if (!item.node && cc && cc.startsWith(comment)) {
pair.value.comment = cc.substr(comment.length + 1);
found = true;
}
}
if (found) pair.comment = comment;
}
function resolveBlockMapItems(doc, cst) {
const comments = [];
const items = [];
let key = undefined;
let keyStart = null;
for (let i = 0; i < cst.items.length; ++i) {
const item = cst.items[i];
switch (item.type) {
case PlainValue.Type.BLANK_LINE:
comments.push({
afterKey: !!key,
before: items.length
});
break;
case PlainValue.Type.COMMENT:
comments.push({
afterKey: !!key,
before: items.length,
comment: item.comment
});
break;
case PlainValue.Type.MAP_KEY:
if (key !== undefined) items.push(new Pair(key));
if (item.error) doc.errors.push(item.error);
key = resolveNode(doc, item.node);
keyStart = null;
break;
case PlainValue.Type.MAP_VALUE:
{
if (key === undefined) key = null;
if (item.error) doc.errors.push(item.error);
if (!item.context.atLineStart && item.node && item.node.type === PlainValue.Type.MAP && !item.node.context.atLineStart) {
const msg = 'Nested mappings are not allowed in compact mappings';
doc.errors.push(new PlainValue.YAMLSemanticError(item.node, msg));
}
let valueNode = item.node;
if (!valueNode && item.props.length > 0) {
// Comments on an empty mapping value need to be preserved, so we
// need to construct a minimal empty node here to use instead of the
// missing `item.node`. -- eemeli/yaml#19
valueNode = new PlainValue.PlainValue(PlainValue.Type.PLAIN, []);
valueNode.context = {
parent: item,
src: item.context.src
};
const pos = item.range.start + 1;
valueNode.range = {
start: pos,
end: pos
};
valueNode.valueRange = {
start: pos,
end: pos
};
if (typeof item.range.origStart === 'number') {
const origPos = item.range.origStart + 1;
valueNode.range.origStart = valueNode.range.origEnd = origPos;
valueNode.valueRange.origStart = valueNode.valueRange.origEnd = origPos;
}
}
const pair = new Pair(key, resolveNode(doc, valueNode));
resolvePairComment(item, pair);
items.push(pair);
if (key && typeof keyStart === 'number') {
if (item.range.start > keyStart + 1024) doc.errors.push(getLongKeyError(cst, key));
}
key = undefined;
keyStart = null;
}
break;
default:
if (key !== undefined) items.push(new Pair(key));
key = resolveNode(doc, item);
keyStart = item.range.start;
if (item.error) doc.errors.push(item.error);
next: for (let j = i + 1;; ++j) {
const nextItem = cst.items[j];
switch (nextItem && nextItem.type) {
case PlainValue.Type.BLANK_LINE:
case PlainValue.Type.COMMENT:
continue next;
case PlainValue.Type.MAP_VALUE:
break next;
default:
{
const msg = 'Implicit map keys need to be followed by map values';
doc.errors.push(new PlainValue.YAMLSemanticError(item, msg));
break next;
}
}
}
if (item.valueRangeContainsNewline) {
const msg = 'Implicit map keys need to be on a single line';
doc.errors.push(new PlainValue.YAMLSemanticError(item, msg));
}
}
}
if (key !== undefined) items.push(new Pair(key));
return {
comments,
items
};
}
function resolveFlowMapItems(doc, cst) {
const comments = [];
const items = [];
let key = undefined;
let explicitKey = false;
let next = '{';
for (let i = 0; i < cst.items.length; ++i) {
const item = cst.items[i];
if (typeof item.char === 'string') {
const {
char,
offset
} = item;
if (char === '?' && key === undefined && !explicitKey) {
explicitKey = true;
next = ':';
continue;
}
if (char === ':') {
if (key === undefined) key = null;
if (next === ':') {
next = ',';
continue;
}
} else {
if (explicitKey) {
if (key === undefined && char !== ',') key = null;
explicitKey = false;
}
if (key !== undefined) {
items.push(new Pair(key));
key = undefined;
if (char === ',') {
next = ':';
continue;
}
}
}
if (char === '}') {
if (i === cst.items.length - 1) continue;
} else if (char === next) {
next = ':';
continue;
}
const msg = `Flow map contains an unexpected ${char}`;
const err = new PlainValue.YAMLSyntaxError(cst, msg);
err.offset = offset;
doc.errors.push(err);
} else if (item.type === PlainValue.Type.BLANK_LINE) {
comments.push({
afterKey: !!key,
before: items.length
});
} else if (item.type === PlainValue.Type.COMMENT) {
checkFlowCommentSpace(doc.errors, item);
comments.push({
afterKey: !!key,
before: items.length,
comment: item.comment
});
} else if (key === undefined) {
if (next === ',') doc.errors.push(new PlainValue.YAMLSemanticError(item, 'Separator , missing in flow map'));
key = resolveNode(doc, item);
} else {
if (next !== ',') doc.errors.push(new PlainValue.YAMLSemanticError(item, 'Indicator : missing in flow map entry'));
items.push(new Pair(key, resolveNode(doc, item)));
key = undefined;
explicitKey = false;
}
}
checkFlowCollectionEnd(doc.errors, cst);
if (key !== undefined) items.push(new Pair(key));
return {
comments,
items
};
}
function resolveSeq(doc, cst) {
if (cst.type !== PlainValue.Type.SEQ && cst.type !== PlainValue.Type.FLOW_SEQ) {
const msg = `A ${cst.type} node cannot be resolved as a sequence`;
doc.errors.push(new PlainValue.YAMLSyntaxError(cst, msg));
return null;
}
const {
comments,
items
} = cst.type === PlainValue.Type.FLOW_SEQ ? resolveFlowSeqItems(doc, cst) : resolveBlockSeqItems(doc, cst);
const seq = new YAMLSeq();
seq.items = items;
resolveComments(seq, comments);
if (!doc.options.mapAsMap && items.some(it => it instanceof Pair && it.key instanceof Collection)) {
const warn = 'Keys with collection values will be stringified as YAML due to JS Object restrictions. Use mapAsMap: true to avoid this.';
doc.warnings.push(new PlainValue.YAMLWarning(cst, warn));
}
cst.resolved = seq;
return seq;
}
function resolveBlockSeqItems(doc, cst) {
const comments = [];
const items = [];
for (let i = 0; i < cst.items.length; ++i) {
const item = cst.items[i];
switch (item.type) {
case PlainValue.Type.BLANK_LINE:
comments.push({
before: items.length
});
break;
case PlainValue.Type.COMMENT:
comments.push({
comment: item.comment,
before: items.length
});
break;
case PlainValue.Type.SEQ_ITEM:
if (item.error) doc.errors.push(item.error);
items.push(resolveNode(doc, item.node));
if (item.hasProps) {
const msg = 'Sequence items cannot have tags or anchors before the - indicator';
doc.errors.push(new PlainValue.YAMLSemanticError(item, msg));
}
break;
default:
if (item.error) doc.errors.push(item.error);
doc.errors.push(new PlainValue.YAMLSyntaxError(item, `Unexpected ${item.type} node in sequence`));
}
}
return {
comments,
items
};
}
function resolveFlowSeqItems(doc, cst) {
const comments = [];
const items = [];
let explicitKey = false;
let key = undefined;
let keyStart = null;
let next = '[';
let prevItem = null;
for (let i = 0; i < cst.items.length; ++i) {
const item = cst.items[i];
if (typeof item.char === 'string') {
const {
char,
offset
} = item;
if (char !== ':' && (explicitKey || key !== undefined)) {
if (explicitKey && key === undefined) key = next ? items.pop() : null;
items.push(new Pair(key));
explicitKey = false;
key = undefined;
keyStart = null;
}
if (char === next) {
next = null;
} else if (!next && char === '?') {
explicitKey = true;
} else if (next !== '[' && char === ':' && key === undefined) {
if (next === ',') {
key = items.pop();
if (key instanceof Pair) {
const msg = 'Chaining flow sequence pairs is invalid';
const err = new PlainValue.YAMLSemanticError(cst, msg);
err.offset = offset;
doc.errors.push(err);
}
if (!explicitKey && typeof keyStart === 'number') {
const keyEnd = item.range ? item.range.start : item.offset;
if (keyEnd > keyStart + 1024) doc.errors.push(getLongKeyError(cst, key));
const {
src
} = prevItem.context;
for (let i = keyStart; i < keyEnd; ++i) if (src[i] === '\n') {
const msg = 'Implicit keys of flow sequence pairs need to be on a single line';
doc.errors.push(new PlainValue.YAMLSemanticError(prevItem, msg));
break;
}
}
} else {
key = null;
}
keyStart = null;
explicitKey = false;
next = null;
} else if (next === '[' || char !== ']' || i < cst.items.length - 1) {
const msg = `Flow sequence contains an unexpected ${char}`;
const err = new PlainValue.YAMLSyntaxError(cst, msg);
err.offset = offset;
doc.errors.push(err);
}
} else if (item.type === PlainValue.Type.BLANK_LINE) {
comments.push({
before: items.length
});
} else if (item.type === PlainValue.Type.COMMENT) {
checkFlowCommentSpace(doc.errors, item);
comments.push({
comment: item.comment,
before: items.length
});
} else {
if (next) {
const msg = `Expected a ${next} in flow sequence`;
doc.errors.push(new PlainValue.YAMLSemanticError(item, msg));
}
const value = resolveNode(doc, item);
if (key === undefined) {
items.push(value);
prevItem = item;
} else {
items.push(new Pair(key, value));
key = undefined;
}
keyStart = item.range.start;
next = ',';
}
}
checkFlowCollectionEnd(doc.errors, cst);
if (key !== undefined) items.push(new Pair(key));
return {
comments,
items
};
}
exports.Alias = Alias;
exports.Collection = Collection;
exports.Merge = Merge;
exports.Node = Node;
exports.Pair = Pair;
exports.Scalar = Scalar;
exports.YAMLMap = YAMLMap;
exports.YAMLSeq = YAMLSeq;
exports.addComment = addComment;
exports.binaryOptions = binaryOptions;
exports.boolOptions = boolOptions;
exports.findPair = findPair;
exports.intOptions = intOptions;
exports.isEmptyPath = isEmptyPath;
exports.nullOptions = nullOptions;
exports.resolveMap = resolveMap;
exports.resolveNode = resolveNode;
exports.resolveSeq = resolveSeq;
exports.resolveString = resolveString;
exports.strOptions = strOptions;
exports.stringifyNumber = stringifyNumber;
exports.stringifyString = stringifyString;
exports.toJSON = toJSON;

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