js-yaml
Version:
YAML 1.2 parser and serializer
1,854 lines (1,425 loc) • 114 kB
JavaScript
/*! js-yaml 4.1.0 https://github.com/nodeca/js-yaml @license MIT */
(function (global, factory) {
typeof exports === 'object' && typeof module !== 'undefined' ? factory(exports) :
typeof define === 'function' && define.amd ? define(['exports'], factory) :
(global = typeof globalThis !== 'undefined' ? globalThis : global || self, factory(global.jsyaml = {}));
}(this, (function (exports) { 'use strict';
function isNothing(subject) {
return (typeof subject === 'undefined') || (subject === null);
}
function isObject(subject) {
return (typeof subject === 'object') && (subject !== null);
}
function toArray(sequence) {
if (Array.isArray(sequence)) return sequence;
else if (isNothing(sequence)) return [];
return [ sequence ];
}
function extend(target, source) {
var index, length, key, sourceKeys;
if (source) {
sourceKeys = Object.keys(source);
for (index = 0, length = sourceKeys.length; index < length; index += 1) {
key = sourceKeys[index];
target[key] = source[key];
}
}
return target;
}
function repeat(string, count) {
var result = '', cycle;
for (cycle = 0; cycle < count; cycle += 1) {
result += string;
}
return result;
}
function isNegativeZero(number) {
return (number === 0) && (Number.NEGATIVE_INFINITY === 1 / number);
}
var isNothing_1 = isNothing;
var isObject_1 = isObject;
var toArray_1 = toArray;
var repeat_1 = repeat;
var isNegativeZero_1 = isNegativeZero;
var extend_1 = extend;
var common = {
isNothing: isNothing_1,
isObject: isObject_1,
toArray: toArray_1,
repeat: repeat_1,
isNegativeZero: isNegativeZero_1,
extend: extend_1
};
// YAML error class. http://stackoverflow.com/questions/8458984
function formatError(exception, compact) {
var where = '', message = exception.reason || '(unknown reason)';
if (!exception.mark) return message;
if (exception.mark.name) {
where += 'in "' + exception.mark.name + '" ';
}
where += '(' + (exception.mark.line + 1) + ':' + (exception.mark.column + 1) + ')';
if (!compact && exception.mark.snippet) {
where += '\n\n' + exception.mark.snippet;
}
return message + ' ' + where;
}
function YAMLException$1(reason, mark) {
// Super constructor
Error.call(this);
this.name = 'YAMLException';
this.reason = reason;
this.mark = mark;
this.message = formatError(this, false);
// Include stack trace in error object
if (Error.captureStackTrace) {
// Chrome and NodeJS
Error.captureStackTrace(this, this.constructor);
} else {
// FF, IE 10+ and Safari 6+. Fallback for others
this.stack = (new Error()).stack || '';
}
}
// Inherit from Error
YAMLException$1.prototype = Object.create(Error.prototype);
YAMLException$1.prototype.constructor = YAMLException$1;
YAMLException$1.prototype.toString = function toString(compact) {
return this.name + ': ' + formatError(this, compact);
};
var exception = YAMLException$1;
// get snippet for a single line, respecting maxLength
function getLine(buffer, lineStart, lineEnd, position, maxLineLength) {
var head = '';
var tail = '';
var maxHalfLength = Math.floor(maxLineLength / 2) - 1;
if (position - lineStart > maxHalfLength) {
head = ' ... ';
lineStart = position - maxHalfLength + head.length;
}
if (lineEnd - position > maxHalfLength) {
tail = ' ...';
lineEnd = position + maxHalfLength - tail.length;
}
return {
str: head + buffer.slice(lineStart, lineEnd).replace(/\t/g, '→') + tail,
pos: position - lineStart + head.length // relative position
};
}
function padStart(string, max) {
return common.repeat(' ', max - string.length) + string;
}
function makeSnippet(mark, options) {
options = Object.create(options || null);
if (!mark.buffer) return null;
if (!options.maxLength) options.maxLength = 79;
if (typeof options.indent !== 'number') options.indent = 1;
if (typeof options.linesBefore !== 'number') options.linesBefore = 3;
if (typeof options.linesAfter !== 'number') options.linesAfter = 2;
var re = /\r?\n|\r|\0/g;
var lineStarts = [ 0 ];
var lineEnds = [];
var match;
var foundLineNo = -1;
while ((match = re.exec(mark.buffer))) {
lineEnds.push(match.index);
lineStarts.push(match.index + match[0].length);
if (mark.position <= match.index && foundLineNo < 0) {
foundLineNo = lineStarts.length - 2;
}
}
if (foundLineNo < 0) foundLineNo = lineStarts.length - 1;
var result = '', i, line;
var lineNoLength = Math.min(mark.line + options.linesAfter, lineEnds.length).toString().length;
var maxLineLength = options.maxLength - (options.indent + lineNoLength + 3);
for (i = 1; i <= options.linesBefore; i++) {
if (foundLineNo - i < 0) break;
line = getLine(
mark.buffer,
lineStarts[foundLineNo - i],
lineEnds[foundLineNo - i],
mark.position - (lineStarts[foundLineNo] - lineStarts[foundLineNo - i]),
maxLineLength
);
result = common.repeat(' ', options.indent) + padStart((mark.line - i + 1).toString(), lineNoLength) +
' | ' + line.str + '\n' + result;
}
line = getLine(mark.buffer, lineStarts[foundLineNo], lineEnds[foundLineNo], mark.position, maxLineLength);
result += common.repeat(' ', options.indent) + padStart((mark.line + 1).toString(), lineNoLength) +
' | ' + line.str + '\n';
result += common.repeat('-', options.indent + lineNoLength + 3 + line.pos) + '^' + '\n';
for (i = 1; i <= options.linesAfter; i++) {
if (foundLineNo + i >= lineEnds.length) break;
line = getLine(
mark.buffer,
lineStarts[foundLineNo + i],
lineEnds[foundLineNo + i],
mark.position - (lineStarts[foundLineNo] - lineStarts[foundLineNo + i]),
maxLineLength
);
result += common.repeat(' ', options.indent) + padStart((mark.line + i + 1).toString(), lineNoLength) +
' | ' + line.str + '\n';
}
return result.replace(/\n$/, '');
}
var snippet = makeSnippet;
var TYPE_CONSTRUCTOR_OPTIONS = [
'kind',
'multi',
'resolve',
'construct',
'instanceOf',
'predicate',
'represent',
'representName',
'defaultStyle',
'styleAliases'
];
var YAML_NODE_KINDS = [
'scalar',
'sequence',
'mapping'
];
function compileStyleAliases(map) {
var result = {};
if (map !== null) {
Object.keys(map).forEach(function (style) {
map[style].forEach(function (alias) {
result[String(alias)] = style;
});
});
}
return result;
}
function Type$1(tag, options) {
options = options || {};
Object.keys(options).forEach(function (name) {
if (TYPE_CONSTRUCTOR_OPTIONS.indexOf(name) === -1) {
throw new exception('Unknown option "' + name + '" is met in definition of "' + tag + '" YAML type.');
}
});
// TODO: Add tag format check.
this.options = options; // keep original options in case user wants to extend this type later
this.tag = tag;
this.kind = options['kind'] || null;
this.resolve = options['resolve'] || function () { return true; };
this.construct = options['construct'] || function (data) { return data; };
this.instanceOf = options['instanceOf'] || null;
this.predicate = options['predicate'] || null;
this.represent = options['represent'] || null;
this.representName = options['representName'] || null;
this.defaultStyle = options['defaultStyle'] || null;
this.multi = options['multi'] || false;
this.styleAliases = compileStyleAliases(options['styleAliases'] || null);
if (YAML_NODE_KINDS.indexOf(this.kind) === -1) {
throw new exception('Unknown kind "' + this.kind + '" is specified for "' + tag + '" YAML type.');
}
}
var type = Type$1;
/*eslint-disable max-len*/
function compileList(schema, name) {
var result = [];
schema[name].forEach(function (currentType) {
var newIndex = result.length;
result.forEach(function (previousType, previousIndex) {
if (previousType.tag === currentType.tag &&
previousType.kind === currentType.kind &&
previousType.multi === currentType.multi) {
newIndex = previousIndex;
}
});
result[newIndex] = currentType;
});
return result;
}
function compileMap(/* lists... */) {
var result = {
scalar: {},
sequence: {},
mapping: {},
fallback: {},
multi: {
scalar: [],
sequence: [],
mapping: [],
fallback: []
}
}, index, length;
function collectType(type) {
if (type.multi) {
result.multi[type.kind].push(type);
result.multi['fallback'].push(type);
} else {
result[type.kind][type.tag] = result['fallback'][type.tag] = type;
}
}
for (index = 0, length = arguments.length; index < length; index += 1) {
arguments[index].forEach(collectType);
}
return result;
}
function Schema$1(definition) {
return this.extend(definition);
}
Schema$1.prototype.extend = function extend(definition) {
var implicit = [];
var explicit = [];
if (definition instanceof type) {
// Schema.extend(type)
explicit.push(definition);
} else if (Array.isArray(definition)) {
// Schema.extend([ type1, type2, ... ])
explicit = explicit.concat(definition);
} else if (definition && (Array.isArray(definition.implicit) || Array.isArray(definition.explicit))) {
// Schema.extend({ explicit: [ type1, type2, ... ], implicit: [ type1, type2, ... ] })
if (definition.implicit) implicit = implicit.concat(definition.implicit);
if (definition.explicit) explicit = explicit.concat(definition.explicit);
} else {
throw new exception('Schema.extend argument should be a Type, [ Type ], ' +
'or a schema definition ({ implicit: [...], explicit: [...] })');
}
implicit.forEach(function (type$1) {
if (!(type$1 instanceof type)) {
throw new exception('Specified list of YAML types (or a single Type object) contains a non-Type object.');
}
if (type$1.loadKind && type$1.loadKind !== 'scalar') {
throw new exception('There is a non-scalar type in the implicit list of a schema. Implicit resolving of such types is not supported.');
}
if (type$1.multi) {
throw new exception('There is a multi type in the implicit list of a schema. Multi tags can only be listed as explicit.');
}
});
explicit.forEach(function (type$1) {
if (!(type$1 instanceof type)) {
throw new exception('Specified list of YAML types (or a single Type object) contains a non-Type object.');
}
});
var result = Object.create(Schema$1.prototype);
result.implicit = (this.implicit || []).concat(implicit);
result.explicit = (this.explicit || []).concat(explicit);
result.compiledImplicit = compileList(result, 'implicit');
result.compiledExplicit = compileList(result, 'explicit');
result.compiledTypeMap = compileMap(result.compiledImplicit, result.compiledExplicit);
return result;
};
var schema = Schema$1;
var str = new type('tag:yaml.org,2002:str', {
kind: 'scalar',
construct: function (data) { return data !== null ? data : ''; }
});
var seq = new type('tag:yaml.org,2002:seq', {
kind: 'sequence',
construct: function (data) { return data !== null ? data : []; }
});
var map = new type('tag:yaml.org,2002:map', {
kind: 'mapping',
construct: function (data) { return data !== null ? data : {}; }
});
var failsafe = new schema({
explicit: [
str,
seq,
map
]
});
function resolveYamlNull(data) {
if (data === null) return true;
var max = data.length;
return (max === 1 && data === '~') ||
(max === 4 && (data === 'null' || data === 'Null' || data === 'NULL'));
}
function constructYamlNull() {
return null;
}
function isNull(object) {
return object === null;
}
var _null = new type('tag:yaml.org,2002:null', {
kind: 'scalar',
resolve: resolveYamlNull,
construct: constructYamlNull,
predicate: isNull,
represent: {
canonical: function () { return '~'; },
lowercase: function () { return 'null'; },
uppercase: function () { return 'NULL'; },
camelcase: function () { return 'Null'; },
empty: function () { return ''; }
},
defaultStyle: 'lowercase'
});
function resolveYamlBoolean(data) {
if (data === null) return false;
var max = data.length;
return (max === 4 && (data === 'true' || data === 'True' || data === 'TRUE')) ||
(max === 5 && (data === 'false' || data === 'False' || data === 'FALSE'));
}
function constructYamlBoolean(data) {
return data === 'true' ||
data === 'True' ||
data === 'TRUE';
}
function isBoolean(object) {
return Object.prototype.toString.call(object) === '[object Boolean]';
}
var bool = new type('tag:yaml.org,2002:bool', {
kind: 'scalar',
resolve: resolveYamlBoolean,
construct: constructYamlBoolean,
predicate: isBoolean,
represent: {
lowercase: function (object) { return object ? 'true' : 'false'; },
uppercase: function (object) { return object ? 'TRUE' : 'FALSE'; },
camelcase: function (object) { return object ? 'True' : 'False'; }
},
defaultStyle: 'lowercase'
});
function isHexCode(c) {
return ((0x30/* 0 */ <= c) && (c <= 0x39/* 9 */)) ||
((0x41/* A */ <= c) && (c <= 0x46/* F */)) ||
((0x61/* a */ <= c) && (c <= 0x66/* f */));
}
function isOctCode(c) {
return ((0x30/* 0 */ <= c) && (c <= 0x37/* 7 */));
}
function isDecCode(c) {
return ((0x30/* 0 */ <= c) && (c <= 0x39/* 9 */));
}
function resolveYamlInteger(data) {
if (data === null) return false;
var max = data.length,
index = 0,
hasDigits = false,
ch;
if (!max) return false;
ch = data[index];
// sign
if (ch === '-' || ch === '+') {
ch = data[++index];
}
if (ch === '0') {
// 0
if (index + 1 === max) return true;
ch = data[++index];
// base 2, base 8, base 16
if (ch === 'b') {
// base 2
index++;
for (; index < max; index++) {
ch = data[index];
if (ch === '_') continue;
if (ch !== '0' && ch !== '1') return false;
hasDigits = true;
}
return hasDigits && ch !== '_';
}
if (ch === 'x') {
// base 16
index++;
for (; index < max; index++) {
ch = data[index];
if (ch === '_') continue;
if (!isHexCode(data.charCodeAt(index))) return false;
hasDigits = true;
}
return hasDigits && ch !== '_';
}
if (ch === 'o') {
// base 8
index++;
for (; index < max; index++) {
ch = data[index];
if (ch === '_') continue;
if (!isOctCode(data.charCodeAt(index))) return false;
hasDigits = true;
}
return hasDigits && ch !== '_';
}
}
// base 10 (except 0)
// value should not start with `_`;
if (ch === '_') return false;
for (; index < max; index++) {
ch = data[index];
if (ch === '_') continue;
if (!isDecCode(data.charCodeAt(index))) {
return false;
}
hasDigits = true;
}
// Should have digits and should not end with `_`
if (!hasDigits || ch === '_') return false;
return true;
}
function constructYamlInteger(data) {
var value = data, sign = 1, ch;
if (value.indexOf('_') !== -1) {
value = value.replace(/_/g, '');
}
ch = value[0];
if (ch === '-' || ch === '+') {
if (ch === '-') sign = -1;
value = value.slice(1);
ch = value[0];
}
if (value === '0') return 0;
if (ch === '0') {
if (value[1] === 'b') return sign * parseInt(value.slice(2), 2);
if (value[1] === 'x') return sign * parseInt(value.slice(2), 16);
if (value[1] === 'o') return sign * parseInt(value.slice(2), 8);
}
return sign * parseInt(value, 10);
}
function isInteger(object) {
return (Object.prototype.toString.call(object)) === '[object Number]' &&
(object % 1 === 0 && !common.isNegativeZero(object));
}
var int = new type('tag:yaml.org,2002:int', {
kind: 'scalar',
resolve: resolveYamlInteger,
construct: constructYamlInteger,
predicate: isInteger,
represent: {
binary: function (obj) { return obj >= 0 ? '0b' + obj.toString(2) : '-0b' + obj.toString(2).slice(1); },
octal: function (obj) { return obj >= 0 ? '0o' + obj.toString(8) : '-0o' + obj.toString(8).slice(1); },
decimal: function (obj) { return obj.toString(10); },
/* eslint-disable max-len */
hexadecimal: function (obj) { return obj >= 0 ? '0x' + obj.toString(16).toUpperCase() : '-0x' + obj.toString(16).toUpperCase().slice(1); }
},
defaultStyle: 'decimal',
styleAliases: {
binary: [ 2, 'bin' ],
octal: [ 8, 'oct' ],
decimal: [ 10, 'dec' ],
hexadecimal: [ 16, 'hex' ]
}
});
var YAML_FLOAT_PATTERN = new RegExp(
// 2.5e4, 2.5 and integers
'^(?:[-+]?(?:[0-9][0-9_]*)(?:\\.[0-9_]*)?(?:[eE][-+]?[0-9]+)?' +
// .2e4, .2
// special case, seems not from spec
'|\\.[0-9_]+(?:[eE][-+]?[0-9]+)?' +
// .inf
'|[-+]?\\.(?:inf|Inf|INF)' +
// .nan
'|\\.(?:nan|NaN|NAN))$');
function resolveYamlFloat(data) {
if (data === null) return false;
if (!YAML_FLOAT_PATTERN.test(data) ||
// Quick hack to not allow integers end with `_`
// Probably should update regexp & check speed
data[data.length - 1] === '_') {
return false;
}
return true;
}
function constructYamlFloat(data) {
var value, sign;
value = data.replace(/_/g, '').toLowerCase();
sign = value[0] === '-' ? -1 : 1;
if ('+-'.indexOf(value[0]) >= 0) {
value = value.slice(1);
}
if (value === '.inf') {
return (sign === 1) ? Number.POSITIVE_INFINITY : Number.NEGATIVE_INFINITY;
} else if (value === '.nan') {
return NaN;
}
return sign * parseFloat(value, 10);
}
var SCIENTIFIC_WITHOUT_DOT = /^[-+]?[0-9]+e/;
function representYamlFloat(object, style) {
var res;
if (isNaN(object)) {
switch (style) {
case 'lowercase': return '.nan';
case 'uppercase': return '.NAN';
case 'camelcase': return '.NaN';
}
} else if (Number.POSITIVE_INFINITY === object) {
switch (style) {
case 'lowercase': return '.inf';
case 'uppercase': return '.INF';
case 'camelcase': return '.Inf';
}
} else if (Number.NEGATIVE_INFINITY === object) {
switch (style) {
case 'lowercase': return '-.inf';
case 'uppercase': return '-.INF';
case 'camelcase': return '-.Inf';
}
} else if (common.isNegativeZero(object)) {
return '-0.0';
}
res = object.toString(10);
// JS stringifier can build scientific format without dots: 5e-100,
// while YAML requres dot: 5.e-100. Fix it with simple hack
return SCIENTIFIC_WITHOUT_DOT.test(res) ? res.replace('e', '.e') : res;
}
function isFloat(object) {
return (Object.prototype.toString.call(object) === '[object Number]') &&
(object % 1 !== 0 || common.isNegativeZero(object));
}
var float = new type('tag:yaml.org,2002:float', {
kind: 'scalar',
resolve: resolveYamlFloat,
construct: constructYamlFloat,
predicate: isFloat,
represent: representYamlFloat,
defaultStyle: 'lowercase'
});
var json = failsafe.extend({
implicit: [
_null,
bool,
int,
float
]
});
var core = json;
var YAML_DATE_REGEXP = new RegExp(
'^([0-9][0-9][0-9][0-9])' + // [1] year
'-([0-9][0-9])' + // [2] month
'-([0-9][0-9])$'); // [3] day
var YAML_TIMESTAMP_REGEXP = new RegExp(
'^([0-9][0-9][0-9][0-9])' + // [1] year
'-([0-9][0-9]?)' + // [2] month
'-([0-9][0-9]?)' + // [3] day
'(?:[Tt]|[ \\t]+)' + // ...
'([0-9][0-9]?)' + // [4] hour
':([0-9][0-9])' + // [5] minute
':([0-9][0-9])' + // [6] second
'(?:\\.([0-9]*))?' + // [7] fraction
'(?:[ \\t]*(Z|([-+])([0-9][0-9]?)' + // [8] tz [9] tz_sign [10] tz_hour
'(?::([0-9][0-9]))?))?$'); // [11] tz_minute
function resolveYamlTimestamp(data) {
if (data === null) return false;
if (YAML_DATE_REGEXP.exec(data) !== null) return true;
if (YAML_TIMESTAMP_REGEXP.exec(data) !== null) return true;
return false;
}
function constructYamlTimestamp(data) {
var match, year, month, day, hour, minute, second, fraction = 0,
delta = null, tz_hour, tz_minute, date;
match = YAML_DATE_REGEXP.exec(data);
if (match === null) match = YAML_TIMESTAMP_REGEXP.exec(data);
if (match === null) throw new Error('Date resolve error');
// match: [1] year [2] month [3] day
year = +(match[1]);
month = +(match[2]) - 1; // JS month starts with 0
day = +(match[3]);
if (!match[4]) { // no hour
return new Date(Date.UTC(year, month, day));
}
// match: [4] hour [5] minute [6] second [7] fraction
hour = +(match[4]);
minute = +(match[5]);
second = +(match[6]);
if (match[7]) {
fraction = match[7].slice(0, 3);
while (fraction.length < 3) { // milli-seconds
fraction += '0';
}
fraction = +fraction;
}
// match: [8] tz [9] tz_sign [10] tz_hour [11] tz_minute
if (match[9]) {
tz_hour = +(match[10]);
tz_minute = +(match[11] || 0);
delta = (tz_hour * 60 + tz_minute) * 60000; // delta in mili-seconds
if (match[9] === '-') delta = -delta;
}
date = new Date(Date.UTC(year, month, day, hour, minute, second, fraction));
if (delta) date.setTime(date.getTime() - delta);
return date;
}
function representYamlTimestamp(object /*, style*/) {
return object.toISOString();
}
var timestamp = new type('tag:yaml.org,2002:timestamp', {
kind: 'scalar',
resolve: resolveYamlTimestamp,
construct: constructYamlTimestamp,
instanceOf: Date,
represent: representYamlTimestamp
});
function resolveYamlMerge(data) {
return data === '<<' || data === null;
}
var merge = new type('tag:yaml.org,2002:merge', {
kind: 'scalar',
resolve: resolveYamlMerge
});
/*eslint-disable no-bitwise*/
// [ 64, 65, 66 ] -> [ padding, CR, LF ]
var BASE64_MAP = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=\n\r';
function resolveYamlBinary(data) {
if (data === null) return false;
var code, idx, bitlen = 0, max = data.length, map = BASE64_MAP;
// Convert one by one.
for (idx = 0; idx < max; idx++) {
code = map.indexOf(data.charAt(idx));
// Skip CR/LF
if (code > 64) continue;
// Fail on illegal characters
if (code < 0) return false;
bitlen += 6;
}
// If there are any bits left, source was corrupted
return (bitlen % 8) === 0;
}
function constructYamlBinary(data) {
var idx, tailbits,
input = data.replace(/[\r\n=]/g, ''), // remove CR/LF & padding to simplify scan
max = input.length,
map = BASE64_MAP,
bits = 0,
result = [];
// Collect by 6*4 bits (3 bytes)
for (idx = 0; idx < max; idx++) {
if ((idx % 4 === 0) && idx) {
result.push((bits >> 16) & 0xFF);
result.push((bits >> 8) & 0xFF);
result.push(bits & 0xFF);
}
bits = (bits << 6) | map.indexOf(input.charAt(idx));
}
// Dump tail
tailbits = (max % 4) * 6;
if (tailbits === 0) {
result.push((bits >> 16) & 0xFF);
result.push((bits >> 8) & 0xFF);
result.push(bits & 0xFF);
} else if (tailbits === 18) {
result.push((bits >> 10) & 0xFF);
result.push((bits >> 2) & 0xFF);
} else if (tailbits === 12) {
result.push((bits >> 4) & 0xFF);
}
return new Uint8Array(result);
}
function representYamlBinary(object /*, style*/) {
var result = '', bits = 0, idx, tail,
max = object.length,
map = BASE64_MAP;
// Convert every three bytes to 4 ASCII characters.
for (idx = 0; idx < max; idx++) {
if ((idx % 3 === 0) && idx) {
result += map[(bits >> 18) & 0x3F];
result += map[(bits >> 12) & 0x3F];
result += map[(bits >> 6) & 0x3F];
result += map[bits & 0x3F];
}
bits = (bits << 8) + object[idx];
}
// Dump tail
tail = max % 3;
if (tail === 0) {
result += map[(bits >> 18) & 0x3F];
result += map[(bits >> 12) & 0x3F];
result += map[(bits >> 6) & 0x3F];
result += map[bits & 0x3F];
} else if (tail === 2) {
result += map[(bits >> 10) & 0x3F];
result += map[(bits >> 4) & 0x3F];
result += map[(bits << 2) & 0x3F];
result += map[64];
} else if (tail === 1) {
result += map[(bits >> 2) & 0x3F];
result += map[(bits << 4) & 0x3F];
result += map[64];
result += map[64];
}
return result;
}
function isBinary(obj) {
return Object.prototype.toString.call(obj) === '[object Uint8Array]';
}
var binary = new type('tag:yaml.org,2002:binary', {
kind: 'scalar',
resolve: resolveYamlBinary,
construct: constructYamlBinary,
predicate: isBinary,
represent: representYamlBinary
});
var _hasOwnProperty$3 = Object.prototype.hasOwnProperty;
var _toString$2 = Object.prototype.toString;
function resolveYamlOmap(data) {
if (data === null) return true;
var objectKeys = [], index, length, pair, pairKey, pairHasKey,
object = data;
for (index = 0, length = object.length; index < length; index += 1) {
pair = object[index];
pairHasKey = false;
if (_toString$2.call(pair) !== '[object Object]') return false;
for (pairKey in pair) {
if (_hasOwnProperty$3.call(pair, pairKey)) {
if (!pairHasKey) pairHasKey = true;
else return false;
}
}
if (!pairHasKey) return false;
if (objectKeys.indexOf(pairKey) === -1) objectKeys.push(pairKey);
else return false;
}
return true;
}
function constructYamlOmap(data) {
return data !== null ? data : [];
}
var omap = new type('tag:yaml.org,2002:omap', {
kind: 'sequence',
resolve: resolveYamlOmap,
construct: constructYamlOmap
});
var _toString$1 = Object.prototype.toString;
function resolveYamlPairs(data) {
if (data === null) return true;
var index, length, pair, keys, result,
object = data;
result = new Array(object.length);
for (index = 0, length = object.length; index < length; index += 1) {
pair = object[index];
if (_toString$1.call(pair) !== '[object Object]') return false;
keys = Object.keys(pair);
if (keys.length !== 1) return false;
result[index] = [ keys[0], pair[keys[0]] ];
}
return true;
}
function constructYamlPairs(data) {
if (data === null) return [];
var index, length, pair, keys, result,
object = data;
result = new Array(object.length);
for (index = 0, length = object.length; index < length; index += 1) {
pair = object[index];
keys = Object.keys(pair);
result[index] = [ keys[0], pair[keys[0]] ];
}
return result;
}
var pairs = new type('tag:yaml.org,2002:pairs', {
kind: 'sequence',
resolve: resolveYamlPairs,
construct: constructYamlPairs
});
var _hasOwnProperty$2 = Object.prototype.hasOwnProperty;
function resolveYamlSet(data) {
if (data === null) return true;
var key, object = data;
for (key in object) {
if (_hasOwnProperty$2.call(object, key)) {
if (object[key] !== null) return false;
}
}
return true;
}
function constructYamlSet(data) {
return data !== null ? data : {};
}
var set = new type('tag:yaml.org,2002:set', {
kind: 'mapping',
resolve: resolveYamlSet,
construct: constructYamlSet
});
var _default = core.extend({
implicit: [
timestamp,
merge
],
explicit: [
binary,
omap,
pairs,
set
]
});
/*eslint-disable max-len,no-use-before-define*/
var _hasOwnProperty$1 = Object.prototype.hasOwnProperty;
var CONTEXT_FLOW_IN = 1;
var CONTEXT_FLOW_OUT = 2;
var CONTEXT_BLOCK_IN = 3;
var CONTEXT_BLOCK_OUT = 4;
var CHOMPING_CLIP = 1;
var CHOMPING_STRIP = 2;
var CHOMPING_KEEP = 3;
var PATTERN_NON_PRINTABLE = /[\x00-\x08\x0B\x0C\x0E-\x1F\x7F-\x84\x86-\x9F\uFFFE\uFFFF]|[\uD800-\uDBFF](?![\uDC00-\uDFFF])|(?:[^\uD800-\uDBFF]|^)[\uDC00-\uDFFF]/;
var PATTERN_NON_ASCII_LINE_BREAKS = /[\x85\u2028\u2029]/;
var PATTERN_FLOW_INDICATORS = /[,\[\]\{\}]/;
var PATTERN_TAG_HANDLE = /^(?:!|!!|![a-z\-]+!)$/i;
var PATTERN_TAG_URI = /^(?:!|[^,\[\]\{\}])(?:%[0-9a-f]{2}|[0-9a-z\-#;\/\?:@&=\+\$,_\.!~\*'\(\)\[\]])*$/i;
function _class(obj) { return Object.prototype.toString.call(obj); }
function is_EOL(c) {
return (c === 0x0A/* LF */) || (c === 0x0D/* CR */);
}
function is_WHITE_SPACE(c) {
return (c === 0x09/* Tab */) || (c === 0x20/* Space */);
}
function is_WS_OR_EOL(c) {
return (c === 0x09/* Tab */) ||
(c === 0x20/* Space */) ||
(c === 0x0A/* LF */) ||
(c === 0x0D/* CR */);
}
function is_FLOW_INDICATOR(c) {
return c === 0x2C/* , */ ||
c === 0x5B/* [ */ ||
c === 0x5D/* ] */ ||
c === 0x7B/* { */ ||
c === 0x7D/* } */;
}
function fromHexCode(c) {
var lc;
if ((0x30/* 0 */ <= c) && (c <= 0x39/* 9 */)) {
return c - 0x30;
}
/*eslint-disable no-bitwise*/
lc = c | 0x20;
if ((0x61/* a */ <= lc) && (lc <= 0x66/* f */)) {
return lc - 0x61 + 10;
}
return -1;
}
function escapedHexLen(c) {
if (c === 0x78/* x */) { return 2; }
if (c === 0x75/* u */) { return 4; }
if (c === 0x55/* U */) { return 8; }
return 0;
}
function fromDecimalCode(c) {
if ((0x30/* 0 */ <= c) && (c <= 0x39/* 9 */)) {
return c - 0x30;
}
return -1;
}
function simpleEscapeSequence(c) {
/* eslint-disable indent */
return (c === 0x30/* 0 */) ? '\x00' :
(c === 0x61/* a */) ? '\x07' :
(c === 0x62/* b */) ? '\x08' :
(c === 0x74/* t */) ? '\x09' :
(c === 0x09/* Tab */) ? '\x09' :
(c === 0x6E/* n */) ? '\x0A' :
(c === 0x76/* v */) ? '\x0B' :
(c === 0x66/* f */) ? '\x0C' :
(c === 0x72/* r */) ? '\x0D' :
(c === 0x65/* e */) ? '\x1B' :
(c === 0x20/* Space */) ? ' ' :
(c === 0x22/* " */) ? '\x22' :
(c === 0x2F/* / */) ? '/' :
(c === 0x5C/* \ */) ? '\x5C' :
(c === 0x4E/* N */) ? '\x85' :
(c === 0x5F/* _ */) ? '\xA0' :
(c === 0x4C/* L */) ? '\u2028' :
(c === 0x50/* P */) ? '\u2029' : '';
}
function charFromCodepoint(c) {
if (c <= 0xFFFF) {
return String.fromCharCode(c);
}
// Encode UTF-16 surrogate pair
// https://en.wikipedia.org/wiki/UTF-16#Code_points_U.2B010000_to_U.2B10FFFF
return String.fromCharCode(
((c - 0x010000) >> 10) + 0xD800,
((c - 0x010000) & 0x03FF) + 0xDC00
);
}
var simpleEscapeCheck = new Array(256); // integer, for fast access
var simpleEscapeMap = new Array(256);
for (var i = 0; i < 256; i++) {
simpleEscapeCheck[i] = simpleEscapeSequence(i) ? 1 : 0;
simpleEscapeMap[i] = simpleEscapeSequence(i);
}
function State$1(input, options) {
this.input = input;
this.filename = options['filename'] || null;
this.schema = options['schema'] || _default;
this.onWarning = options['onWarning'] || null;
// (Hidden) Remove? makes the loader to expect YAML 1.1 documents
// if such documents have no explicit %YAML directive
this.legacy = options['legacy'] || false;
this.json = options['json'] || false;
this.listener = options['listener'] || null;
this.implicitTypes = this.schema.compiledImplicit;
this.typeMap = this.schema.compiledTypeMap;
this.length = input.length;
this.position = 0;
this.line = 0;
this.lineStart = 0;
this.lineIndent = 0;
// position of first leading tab in the current line,
// used to make sure there are no tabs in the indentation
this.firstTabInLine = -1;
this.documents = [];
/*
this.version;
this.checkLineBreaks;
this.tagMap;
this.anchorMap;
this.tag;
this.anchor;
this.kind;
this.result;*/
}
function generateError(state, message) {
var mark = {
name: state.filename,
buffer: state.input.slice(0, -1), // omit trailing \0
position: state.position,
line: state.line,
column: state.position - state.lineStart
};
mark.snippet = snippet(mark);
return new exception(message, mark);
}
function throwError(state, message) {
throw generateError(state, message);
}
function throwWarning(state, message) {
if (state.onWarning) {
state.onWarning.call(null, generateError(state, message));
}
}
var directiveHandlers = {
YAML: function handleYamlDirective(state, name, args) {
var match, major, minor;
if (state.version !== null) {
throwError(state, 'duplication of %YAML directive');
}
if (args.length !== 1) {
throwError(state, 'YAML directive accepts exactly one argument');
}
match = /^([0-9]+)\.([0-9]+)$/.exec(args[0]);
if (match === null) {
throwError(state, 'ill-formed argument of the YAML directive');
}
major = parseInt(match[1], 10);
minor = parseInt(match[2], 10);
if (major !== 1) {
throwError(state, 'unacceptable YAML version of the document');
}
state.version = args[0];
state.checkLineBreaks = (minor < 2);
if (minor !== 1 && minor !== 2) {
throwWarning(state, 'unsupported YAML version of the document');
}
},
TAG: function handleTagDirective(state, name, args) {
var handle, prefix;
if (args.length !== 2) {
throwError(state, 'TAG directive accepts exactly two arguments');
}
handle = args[0];
prefix = args[1];
if (!PATTERN_TAG_HANDLE.test(handle)) {
throwError(state, 'ill-formed tag handle (first argument) of the TAG directive');
}
if (_hasOwnProperty$1.call(state.tagMap, handle)) {
throwError(state, 'there is a previously declared suffix for "' + handle + '" tag handle');
}
if (!PATTERN_TAG_URI.test(prefix)) {
throwError(state, 'ill-formed tag prefix (second argument) of the TAG directive');
}
try {
prefix = decodeURIComponent(prefix);
} catch (err) {
throwError(state, 'tag prefix is malformed: ' + prefix);
}
state.tagMap[handle] = prefix;
}
};
function captureSegment(state, start, end, checkJson) {
var _position, _length, _character, _result;
if (start < end) {
_result = state.input.slice(start, end);
if (checkJson) {
for (_position = 0, _length = _result.length; _position < _length; _position += 1) {
_character = _result.charCodeAt(_position);
if (!(_character === 0x09 ||
(0x20 <= _character && _character <= 0x10FFFF))) {
throwError(state, 'expected valid JSON character');
}
}
} else if (PATTERN_NON_PRINTABLE.test(_result)) {
throwError(state, 'the stream contains non-printable characters');
}
state.result += _result;
}
}
function mergeMappings(state, destination, source, overridableKeys) {
var sourceKeys, key, index, quantity;
if (!common.isObject(source)) {
throwError(state, 'cannot merge mappings; the provided source object is unacceptable');
}
sourceKeys = Object.keys(source);
for (index = 0, quantity = sourceKeys.length; index < quantity; index += 1) {
key = sourceKeys[index];
if (!_hasOwnProperty$1.call(destination, key)) {
destination[key] = source[key];
overridableKeys[key] = true;
}
}
}
function storeMappingPair(state, _result, overridableKeys, keyTag, keyNode, valueNode,
startLine, startLineStart, startPos) {
var index, quantity;
// The output is a plain object here, so keys can only be strings.
// We need to convert keyNode to a string, but doing so can hang the process
// (deeply nested arrays that explode exponentially using aliases).
if (Array.isArray(keyNode)) {
keyNode = Array.prototype.slice.call(keyNode);
for (index = 0, quantity = keyNode.length; index < quantity; index += 1) {
if (Array.isArray(keyNode[index])) {
throwError(state, 'nested arrays are not supported inside keys');
}
if (typeof keyNode === 'object' && _class(keyNode[index]) === '[object Object]') {
keyNode[index] = '[object Object]';
}
}
}
// Avoid code execution in load() via toString property
// (still use its own toString for arrays, timestamps,
// and whatever user schema extensions happen to have @@toStringTag)
if (typeof keyNode === 'object' && _class(keyNode) === '[object Object]') {
keyNode = '[object Object]';
}
keyNode = String(keyNode);
if (_result === null) {
_result = {};
}
if (keyTag === 'tag:yaml.org,2002:merge') {
if (Array.isArray(valueNode)) {
for (index = 0, quantity = valueNode.length; index < quantity; index += 1) {
mergeMappings(state, _result, valueNode[index], overridableKeys);
}
} else {
mergeMappings(state, _result, valueNode, overridableKeys);
}
} else {
if (!state.json &&
!_hasOwnProperty$1.call(overridableKeys, keyNode) &&
_hasOwnProperty$1.call(_result, keyNode)) {
state.line = startLine || state.line;
state.lineStart = startLineStart || state.lineStart;
state.position = startPos || state.position;
throwError(state, 'duplicated mapping key');
}
// used for this specific key only because Object.defineProperty is slow
if (keyNode === '__proto__') {
Object.defineProperty(_result, keyNode, {
configurable: true,
enumerable: true,
writable: true,
value: valueNode
});
} else {
_result[keyNode] = valueNode;
}
delete overridableKeys[keyNode];
}
return _result;
}
function readLineBreak(state) {
var ch;
ch = state.input.charCodeAt(state.position);
if (ch === 0x0A/* LF */) {
state.position++;
} else if (ch === 0x0D/* CR */) {
state.position++;
if (state.input.charCodeAt(state.position) === 0x0A/* LF */) {
state.position++;
}
} else {
throwError(state, 'a line break is expected');
}
state.line += 1;
state.lineStart = state.position;
state.firstTabInLine = -1;
}
function skipSeparationSpace(state, allowComments, checkIndent) {
var lineBreaks = 0,
ch = state.input.charCodeAt(state.position);
while (ch !== 0) {
while (is_WHITE_SPACE(ch)) {
if (ch === 0x09/* Tab */ && state.firstTabInLine === -1) {
state.firstTabInLine = state.position;
}
ch = state.input.charCodeAt(++state.position);
}
if (allowComments && ch === 0x23/* # */) {
do {
ch = state.input.charCodeAt(++state.position);
} while (ch !== 0x0A/* LF */ && ch !== 0x0D/* CR */ && ch !== 0);
}
if (is_EOL(ch)) {
readLineBreak(state);
ch = state.input.charCodeAt(state.position);
lineBreaks++;
state.lineIndent = 0;
while (ch === 0x20/* Space */) {
state.lineIndent++;
ch = state.input.charCodeAt(++state.position);
}
} else {
break;
}
}
if (checkIndent !== -1 && lineBreaks !== 0 && state.lineIndent < checkIndent) {
throwWarning(state, 'deficient indentation');
}
return lineBreaks;
}
function testDocumentSeparator(state) {
var _position = state.position,
ch;
ch = state.input.charCodeAt(_position);
// Condition state.position === state.lineStart is tested
// in parent on each call, for efficiency. No needs to test here again.
if ((ch === 0x2D/* - */ || ch === 0x2E/* . */) &&
ch === state.input.charCodeAt(_position + 1) &&
ch === state.input.charCodeAt(_position + 2)) {
_position += 3;
ch = state.input.charCodeAt(_position);
if (ch === 0 || is_WS_OR_EOL(ch)) {
return true;
}
}
return false;
}
function writeFoldedLines(state, count) {
if (count === 1) {
state.result += ' ';
} else if (count > 1) {
state.result += common.repeat('\n', count - 1);
}
}
function readPlainScalar(state, nodeIndent, withinFlowCollection) {
var preceding,
following,
captureStart,
captureEnd,
hasPendingContent,
_line,
_lineStart,
_lineIndent,
_kind = state.kind,
_result = state.result,
ch;
ch = state.input.charCodeAt(state.position);
if (is_WS_OR_EOL(ch) ||
is_FLOW_INDICATOR(ch) ||
ch === 0x23/* # */ ||
ch === 0x26/* & */ ||
ch === 0x2A/* * */ ||
ch === 0x21/* ! */ ||
ch === 0x7C/* | */ ||
ch === 0x3E/* > */ ||
ch === 0x27/* ' */ ||
ch === 0x22/* " */ ||
ch === 0x25/* % */ ||
ch === 0x40/* @ */ ||
ch === 0x60/* ` */) {
return false;
}
if (ch === 0x3F/* ? */ || ch === 0x2D/* - */) {
following = state.input.charCodeAt(state.position + 1);
if (is_WS_OR_EOL(following) ||
withinFlowCollection && is_FLOW_INDICATOR(following)) {
return false;
}
}
state.kind = 'scalar';
state.result = '';
captureStart = captureEnd = state.position;
hasPendingContent = false;
while (ch !== 0) {
if (ch === 0x3A/* : */) {
following = state.input.charCodeAt(state.position + 1);
if (is_WS_OR_EOL(following) ||
withinFlowCollection && is_FLOW_INDICATOR(following)) {
break;
}
} else if (ch === 0x23/* # */) {
preceding = state.input.charCodeAt(state.position - 1);
if (is_WS_OR_EOL(preceding)) {
break;
}
} else if ((state.position === state.lineStart && testDocumentSeparator(state)) ||
withinFlowCollection && is_FLOW_INDICATOR(ch)) {
break;
} else if (is_EOL(ch)) {
_line = state.line;
_lineStart = state.lineStart;
_lineIndent = state.lineIndent;
skipSeparationSpace(state, false, -1);
if (state.lineIndent >= nodeIndent) {
hasPendingContent = true;
ch = state.input.charCodeAt(state.position);
continue;
} else {
state.position = captureEnd;
state.line = _line;
state.lineStart = _lineStart;
state.lineIndent = _lineIndent;
break;
}
}
if (hasPendingContent) {
captureSegment(state, captureStart, captureEnd, false);
writeFoldedLines(state, state.line - _line);
captureStart = captureEnd = state.position;
hasPendingContent = false;
}
if (!is_WHITE_SPACE(ch)) {
captureEnd = state.position + 1;
}
ch = state.input.charCodeAt(++state.position);
}
captureSegment(state, captureStart, captureEnd, false);
if (state.result) {
return true;
}
state.kind = _kind;
state.result = _result;
return false;
}
function readSingleQuotedScalar(state, nodeIndent) {
var ch,
captureStart, captureEnd;
ch = state.input.charCodeAt(state.position);
if (ch !== 0x27/* ' */) {
return false;
}
state.kind = 'scalar';
state.result = '';
state.position++;
captureStart = captureEnd = state.position;
while ((ch = state.input.charCodeAt(state.position)) !== 0) {
if (ch === 0x27/* ' */) {
captureSegment(state, captureStart, state.position, true);
ch = state.input.charCodeAt(++state.position);
if (ch === 0x27/* ' */) {
captureStart = state.position;
state.position++;
captureEnd = state.position;
} else {
return true;
}
} else if (is_EOL(ch)) {
captureSegment(state, captureStart, captureEnd, true);
writeFoldedLines(state, skipSeparationSpace(state, false, nodeIndent));
captureStart = captureEnd = state.position;
} else if (state.position === state.lineStart && testDocumentSeparator(state)) {
throwError(state, 'unexpected end of the document within a single quoted scalar');
} else {
state.position++;
captureEnd = state.position;
}
}
throwError(state, 'unexpected end of the stream within a single quoted scalar');
}
function readDoubleQuotedScalar(state, nodeIndent) {
var captureStart,
captureEnd,
hexLength,
hexResult,
tmp,
ch;
ch = state.input.charCodeAt(state.position);
if (ch !== 0x22/* " */) {
return false;
}
state.kind = 'scalar';
state.result = '';
state.position++;
captureStart = captureEnd = state.position;
while ((ch = state.input.charCodeAt(state.position)) !== 0) {
if (ch === 0x22/* " */) {
captureSegment(state, captureStart, state.position, true);
state.position++;
return true;
} else if (ch === 0x5C/* \ */) {
captureSegment(state, captureStart, state.position, true);
ch = state.input.charCodeAt(++state.position);
if (is_EOL(ch)) {
skipSeparationSpace(state, false, nodeIndent);
// TODO: rework to inline fn with no type cast?
} else if (ch < 256 && simpleEscapeCheck[ch]) {
state.result += simpleEscapeMap[ch];
state.position++;
} else if ((tmp = escapedHexLen(ch)) > 0) {
hexLength = tmp;
hexResult = 0;
for (; hexLength > 0; hexLength--) {
ch = state.input.charCodeAt(++state.position);
if ((tmp = fromHexCode(ch)) >= 0) {
hexResult = (hexResult << 4) + tmp;
} else {
throwError(state, 'expected hexadecimal character');
}
}
state.result += charFromCodepoint(hexResult);
state.position++;
} else {
throwError(state, 'unknown escape sequence');
}
captureStart = captureEnd = state.position;
} else if (is_EOL(ch)) {
captureSegment(state, captureStart, captureEnd, true);
writeFoldedLines(state, skipSeparationSpace(state, false, nodeIndent));
captureStart = captureEnd = state.position;
} else if (state.position === state.lineStart && testDocumentSeparator(state)) {
throwError(state, 'unexpected end of the document within a double quoted scalar');
} else {
state.position++;
captureEnd = state.position;
}
}
throwError(state, 'unexpected end of the stream within a double quoted scalar');
}
function readFlowCollection(state, nodeIndent) {
var readNext = true,
_line,
_lineStart,
_pos,
_tag = state.tag,
_result,
_anchor = state.anchor,
following,
terminator,
isPair,
isExplicitPair,
isMapping,
overridableKeys = Object.create(null),
keyNode,
keyTag,
valueNode,
ch;
ch = state.input.charCodeAt(state.position);
if (ch === 0x5B/* [ */) {
terminator = 0x5D;/* ] */
isMapping = false;
_result = [];
} else if (ch === 0x7B/* { */) {
terminator = 0x7D;/* } */
isMapping = true;
_result = {};
} else {
return false;
}
if (state.anchor !== null) {
state.anchorMap[state.anchor] = _result;
}
ch = state.input.charCodeAt(++state.position);
while (ch !== 0) {
skipSeparationSpace(state, true, nodeIndent);
ch = state.input.charCodeAt(state.position);
if (ch === terminator) {
state.position++;
state.tag = _tag;
state.anchor = _anchor;
state.kind = isMapping ? 'mapping' : 'sequence';
state.result = _result;
return true;
} else if (!readNext) {
throwError(state, 'missed comma between flow colle