feat: 新增yaml库

merge/1/MERGE
coding 2017-10-11 16:35:54 +00:00
parent 21edb73ed7
commit fb16a16107
29 changed files with 3833 additions and 0 deletions

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'use strict';
var loader = require('./js-yaml/loader');
var dumper = require('./js-yaml/dumper');
function deprecated(name) {
return function () {
throw new Error('Function ' + name + ' is deprecated and cannot be used.');
};
}
module.exports.Type = require('./js-yaml/type');
module.exports.Schema = require('./js-yaml/schema');
module.exports.FAILSAFE_SCHEMA = require('./js-yaml/schema/failsafe');
module.exports.JSON_SCHEMA = require('./js-yaml/schema/json');
module.exports.CORE_SCHEMA = require('./js-yaml/schema/core');
module.exports.DEFAULT_SAFE_SCHEMA = require('./js-yaml/schema/default_safe');
module.exports.DEFAULT_FULL_SCHEMA = require('./js-yaml/schema/default_full');
module.exports.load = loader.load;
module.exports.loadAll = loader.loadAll;
module.exports.safeLoad = loader.safeLoad;
module.exports.safeLoadAll = loader.safeLoadAll;
module.exports.dump = dumper.dump;
module.exports.safeDump = dumper.safeDump;
module.exports.YAMLException = require('./js-yaml/exception');
// Deprecated schema names from JS-YAML 2.0.x
module.exports.MINIMAL_SCHEMA = require('./js-yaml/schema/failsafe');
module.exports.SAFE_SCHEMA = require('./js-yaml/schema/default_safe');
module.exports.DEFAULT_SCHEMA = require('./js-yaml/schema/default_full');
// Deprecated functions from JS-YAML 1.x.x
module.exports.scan = deprecated('scan');
module.exports.parse = deprecated('parse');
module.exports.compose = deprecated('compose');
module.exports.addConstructor = deprecated('addConstructor');

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'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);
}
module.exports.isNothing = isNothing;
module.exports.isObject = isObject;
module.exports.toArray = toArray;
module.exports.repeat = repeat;
module.exports.isNegativeZero = isNegativeZero;
module.exports.extend = extend;

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'use strict';
/*eslint-disable no-use-before-define*/
var common = require('./common');
var YAMLException = require('./exception');
var DEFAULT_FULL_SCHEMA = require('./schema/default_full');
var DEFAULT_SAFE_SCHEMA = require('./schema/default_safe');
var _toString = Object.prototype.toString;
var _hasOwnProperty = Object.prototype.hasOwnProperty;
var CHAR_TAB = 0x09; /* Tab */
var CHAR_LINE_FEED = 0x0A; /* LF */
var CHAR_SPACE = 0x20; /* Space */
var CHAR_EXCLAMATION = 0x21; /* ! */
var CHAR_DOUBLE_QUOTE = 0x22; /* " */
var CHAR_SHARP = 0x23; /* # */
var CHAR_PERCENT = 0x25; /* % */
var CHAR_AMPERSAND = 0x26; /* & */
var CHAR_SINGLE_QUOTE = 0x27; /* ' */
var CHAR_ASTERISK = 0x2A; /* * */
var CHAR_COMMA = 0x2C; /* , */
var CHAR_MINUS = 0x2D; /* - */
var CHAR_COLON = 0x3A; /* : */
var CHAR_GREATER_THAN = 0x3E; /* > */
var CHAR_QUESTION = 0x3F; /* ? */
var CHAR_COMMERCIAL_AT = 0x40; /* @ */
var CHAR_LEFT_SQUARE_BRACKET = 0x5B; /* [ */
var CHAR_RIGHT_SQUARE_BRACKET = 0x5D; /* ] */
var CHAR_GRAVE_ACCENT = 0x60; /* ` */
var CHAR_LEFT_CURLY_BRACKET = 0x7B; /* { */
var CHAR_VERTICAL_LINE = 0x7C; /* | */
var CHAR_RIGHT_CURLY_BRACKET = 0x7D; /* } */
var ESCAPE_SEQUENCES = {};
ESCAPE_SEQUENCES[0x00] = '\\0';
ESCAPE_SEQUENCES[0x07] = '\\a';
ESCAPE_SEQUENCES[0x08] = '\\b';
ESCAPE_SEQUENCES[0x09] = '\\t';
ESCAPE_SEQUENCES[0x0A] = '\\n';
ESCAPE_SEQUENCES[0x0B] = '\\v';
ESCAPE_SEQUENCES[0x0C] = '\\f';
ESCAPE_SEQUENCES[0x0D] = '\\r';
ESCAPE_SEQUENCES[0x1B] = '\\e';
ESCAPE_SEQUENCES[0x22] = '\\"';
ESCAPE_SEQUENCES[0x5C] = '\\\\';
ESCAPE_SEQUENCES[0x85] = '\\N';
ESCAPE_SEQUENCES[0xA0] = '\\_';
ESCAPE_SEQUENCES[0x2028] = '\\L';
ESCAPE_SEQUENCES[0x2029] = '\\P';
var DEPRECATED_BOOLEANS_SYNTAX = [
'y', 'Y', 'yes', 'Yes', 'YES', 'on', 'On', 'ON',
'n', 'N', 'no', 'No', 'NO', 'off', 'Off', 'OFF'
];
function compileStyleMap(schema, map) {
var result, keys, index, length, tag, style, type;
if (map === null) return {};
result = {};
keys = Object.keys(map);
for (index = 0, length = keys.length; index < length; index += 1) {
tag = keys[index];
style = String(map[tag]);
if (tag.slice(0, 2) === '!!') {
tag = 'tag:yaml.org,2002:' + tag.slice(2);
}
type = schema.compiledTypeMap['fallback'][tag];
if (type && _hasOwnProperty.call(type.styleAliases, style)) {
style = type.styleAliases[style];
}
result[tag] = style;
}
return result;
}
function encodeHex(character) {
var string, handle, length;
string = character.toString(16).toUpperCase();
if (character <= 0xFF) {
handle = 'x';
length = 2;
} else if (character <= 0xFFFF) {
handle = 'u';
length = 4;
} else if (character <= 0xFFFFFFFF) {
handle = 'U';
length = 8;
} else {
throw new YAMLException('code point within a string may not be greater than 0xFFFFFFFF');
}
return '\\' + handle + common.repeat('0', length - string.length) + string;
}
function State(options) {
this.schema = options['schema'] || DEFAULT_FULL_SCHEMA;
this.indent = Math.max(1, (options['indent'] || 2));
this.skipInvalid = options['skipInvalid'] || false;
this.flowLevel = (common.isNothing(options['flowLevel']) ? -1 : options['flowLevel']);
this.styleMap = compileStyleMap(this.schema, options['styles'] || null);
this.sortKeys = options['sortKeys'] || false;
this.lineWidth = options['lineWidth'] || 80;
this.noRefs = options['noRefs'] || false;
this.noCompatMode = options['noCompatMode'] || false;
this.condenseFlow = options['condenseFlow'] || false;
this.implicitTypes = this.schema.compiledImplicit;
this.explicitTypes = this.schema.compiledExplicit;
this.tag = null;
this.result = '';
this.duplicates = [];
this.usedDuplicates = null;
}
// Indents every line in a string. Empty lines (\n only) are not indented.
function indentString(string, spaces) {
var ind = common.repeat(' ', spaces),
position = 0,
next = -1,
result = '',
line,
length = string.length;
while (position < length) {
next = string.indexOf('\n', position);
if (next === -1) {
line = string.slice(position);
position = length;
} else {
line = string.slice(position, next + 1);
position = next + 1;
}
if (line.length && line !== '\n') result += ind;
result += line;
}
return result;
}
function generateNextLine(state, level) {
return '\n' + common.repeat(' ', state.indent * level);
}
function testImplicitResolving(state, str) {
var index, length, type;
for (index = 0, length = state.implicitTypes.length; index < length; index += 1) {
type = state.implicitTypes[index];
if (type.resolve(str)) {
return true;
}
}
return false;
}
// [33] s-white ::= s-space | s-tab
function isWhitespace(c) {
return c === CHAR_SPACE || c === CHAR_TAB;
}
// Returns true if the character can be printed without escaping.
// From YAML 1.2: "any allowed characters known to be non-printable
// should also be escaped. [However,] This isnt mandatory"
// Derived from nb-char - \t - #x85 - #xA0 - #x2028 - #x2029.
function isPrintable(c) {
return (0x00020 <= c && c <= 0x00007E)
|| ((0x000A1 <= c && c <= 0x00D7FF) && c !== 0x2028 && c !== 0x2029)
|| ((0x0E000 <= c && c <= 0x00FFFD) && c !== 0xFEFF /* BOM */)
|| (0x10000 <= c && c <= 0x10FFFF);
}
// Simplified test for values allowed after the first character in plain style.
function isPlainSafe(c) {
// Uses a subset of nb-char - c-flow-indicator - ":" - "#"
// where nb-char ::= c-printable - b-char - c-byte-order-mark.
return isPrintable(c) && c !== 0xFEFF
// - c-flow-indicator
&& c !== CHAR_COMMA
&& c !== CHAR_LEFT_SQUARE_BRACKET
&& c !== CHAR_RIGHT_SQUARE_BRACKET
&& c !== CHAR_LEFT_CURLY_BRACKET
&& c !== CHAR_RIGHT_CURLY_BRACKET
// - ":" - "#"
&& c !== CHAR_COLON
&& c !== CHAR_SHARP;
}
// Simplified test for values allowed as the first character in plain style.
function isPlainSafeFirst(c) {
// Uses a subset of ns-char - c-indicator
// where ns-char = nb-char - s-white.
return isPrintable(c) && c !== 0xFEFF
&& !isWhitespace(c) // - s-white
// - (c-indicator ::=
// “-” | “?” | “:” | “,” | “[” | “]” | “{” | “}”
&& c !== CHAR_MINUS
&& c !== CHAR_QUESTION
&& c !== CHAR_COLON
&& c !== CHAR_COMMA
&& c !== CHAR_LEFT_SQUARE_BRACKET
&& c !== CHAR_RIGHT_SQUARE_BRACKET
&& c !== CHAR_LEFT_CURLY_BRACKET
&& c !== CHAR_RIGHT_CURLY_BRACKET
// | “#” | “&” | “*” | “!” | “|” | “>” | “'” | “"”
&& c !== CHAR_SHARP
&& c !== CHAR_AMPERSAND
&& c !== CHAR_ASTERISK
&& c !== CHAR_EXCLAMATION
&& c !== CHAR_VERTICAL_LINE
&& c !== CHAR_GREATER_THAN
&& c !== CHAR_SINGLE_QUOTE
&& c !== CHAR_DOUBLE_QUOTE
// | “%” | “@” | “`”)
&& c !== CHAR_PERCENT
&& c !== CHAR_COMMERCIAL_AT
&& c !== CHAR_GRAVE_ACCENT;
}
var STYLE_PLAIN = 1,
STYLE_SINGLE = 2,
STYLE_LITERAL = 3,
STYLE_FOLDED = 4,
STYLE_DOUBLE = 5;
// Determines which scalar styles are possible and returns the preferred style.
// lineWidth = -1 => no limit.
// Pre-conditions: str.length > 0.
// Post-conditions:
// STYLE_PLAIN or STYLE_SINGLE => no \n are in the string.
// STYLE_LITERAL => no lines are suitable for folding (or lineWidth is -1).
// STYLE_FOLDED => a line > lineWidth and can be folded (and lineWidth != -1).
function chooseScalarStyle(string, singleLineOnly, indentPerLevel, lineWidth, testAmbiguousType) {
var i;
var char;
var hasLineBreak = false;
var hasFoldableLine = false; // only checked if shouldTrackWidth
var shouldTrackWidth = lineWidth !== -1;
var previousLineBreak = -1; // count the first line correctly
var plain = isPlainSafeFirst(string.charCodeAt(0))
&& !isWhitespace(string.charCodeAt(string.length - 1));
if (singleLineOnly) {
// Case: no block styles.
// Check for disallowed characters to rule out plain and single.
for (i = 0; i < string.length; i++) {
char = string.charCodeAt(i);
if (!isPrintable(char)) {
return STYLE_DOUBLE;
}
plain = plain && isPlainSafe(char);
}
} else {
// Case: block styles permitted.
for (i = 0; i < string.length; i++) {
char = string.charCodeAt(i);
if (char === CHAR_LINE_FEED) {
hasLineBreak = true;
// Check if any line can be folded.
if (shouldTrackWidth) {
hasFoldableLine = hasFoldableLine ||
// Foldable line = too long, and not more-indented.
(i - previousLineBreak - 1 > lineWidth &&
string[previousLineBreak + 1] !== ' ');
previousLineBreak = i;
}
} else if (!isPrintable(char)) {
return STYLE_DOUBLE;
}
plain = plain && isPlainSafe(char);
}
// in case the end is missing a \n
hasFoldableLine = hasFoldableLine || (shouldTrackWidth &&
(i - previousLineBreak - 1 > lineWidth &&
string[previousLineBreak + 1] !== ' '));
}
// Although every style can represent \n without escaping, prefer block styles
// for multiline, since they're more readable and they don't add empty lines.
// Also prefer folding a super-long line.
if (!hasLineBreak && !hasFoldableLine) {
// Strings interpretable as another type have to be quoted;
// e.g. the string 'true' vs. the boolean true.
return plain && !testAmbiguousType(string)
? STYLE_PLAIN : STYLE_SINGLE;
}
// Edge case: block indentation indicator can only have one digit.
if (string[0] === ' ' && indentPerLevel > 9) {
return STYLE_DOUBLE;
}
// At this point we know block styles are valid.
// Prefer literal style unless we want to fold.
return hasFoldableLine ? STYLE_FOLDED : STYLE_LITERAL;
}
// Note: line breaking/folding is implemented for only the folded style.
// NB. We drop the last trailing newline (if any) of a returned block scalar
// since the dumper adds its own newline. This always works:
// • No ending newline => unaffected; already using strip "-" chomping.
// • Ending newline => removed then restored.
// Importantly, this keeps the "+" chomp indicator from gaining an extra line.
function writeScalar(state, string, level, iskey) {
state.dump = (function () {
if (string.length === 0) {
return "''";
}
if (!state.noCompatMode &&
DEPRECATED_BOOLEANS_SYNTAX.indexOf(string) !== -1) {
return "'" + string + "'";
}
var indent = state.indent * Math.max(1, level); // no 0-indent scalars
// As indentation gets deeper, let the width decrease monotonically
// to the lower bound min(state.lineWidth, 40).
// Note that this implies
// state.lineWidth ≤ 40 + state.indent: width is fixed at the lower bound.
// state.lineWidth > 40 + state.indent: width decreases until the lower bound.
// This behaves better than a constant minimum width which disallows narrower options,
// or an indent threshold which causes the width to suddenly increase.
var lineWidth = state.lineWidth === -1
? -1 : Math.max(Math.min(state.lineWidth, 40), state.lineWidth - indent);
// Without knowing if keys are implicit/explicit, assume implicit for safety.
var singleLineOnly = iskey
// No block styles in flow mode.
|| (state.flowLevel > -1 && level >= state.flowLevel);
function testAmbiguity(string) {
return testImplicitResolving(state, string);
}
switch (chooseScalarStyle(string, singleLineOnly, state.indent, lineWidth, testAmbiguity)) {
case STYLE_PLAIN:
return string;
case STYLE_SINGLE:
return "'" + string.replace(/'/g, "''") + "'";
case STYLE_LITERAL:
return '|' + blockHeader(string, state.indent)
+ dropEndingNewline(indentString(string, indent));
case STYLE_FOLDED:
return '>' + blockHeader(string, state.indent)
+ dropEndingNewline(indentString(foldString(string, lineWidth), indent));
case STYLE_DOUBLE:
return '"' + escapeString(string, lineWidth) + '"';
default:
throw new YAMLException('impossible error: invalid scalar style');
}
}());
}
// Pre-conditions: string is valid for a block scalar, 1 <= indentPerLevel <= 9.
function blockHeader(string, indentPerLevel) {
var indentIndicator = (string[0] === ' ') ? String(indentPerLevel) : '';
// note the special case: the string '\n' counts as a "trailing" empty line.
var clip = string[string.length - 1] === '\n';
var keep = clip && (string[string.length - 2] === '\n' || string === '\n');
var chomp = keep ? '+' : (clip ? '' : '-');
return indentIndicator + chomp + '\n';
}
// (See the note for writeScalar.)
function dropEndingNewline(string) {
return string[string.length - 1] === '\n' ? string.slice(0, -1) : string;
}
// Note: a long line without a suitable break point will exceed the width limit.
// Pre-conditions: every char in str isPrintable, str.length > 0, width > 0.
function foldString(string, width) {
// In folded style, $k$ consecutive newlines output as $k+1$ newlines—
// unless they're before or after a more-indented line, or at the very
// beginning or end, in which case $k$ maps to $k$.
// Therefore, parse each chunk as newline(s) followed by a content line.
var lineRe = /(\n+)([^\n]*)/g;
// first line (possibly an empty line)
var result = (function () {
var nextLF = string.indexOf('\n');
nextLF = nextLF !== -1 ? nextLF : string.length;
lineRe.lastIndex = nextLF;
return foldLine(string.slice(0, nextLF), width);
}());
// If we haven't reached the first content line yet, don't add an extra \n.
var prevMoreIndented = string[0] === '\n' || string[0] === ' ';
var moreIndented;
// rest of the lines
var match;
while ((match = lineRe.exec(string))) {
var prefix = match[1], line = match[2];
moreIndented = (line[0] === ' ');
result += prefix
+ (!prevMoreIndented && !moreIndented && line !== ''
? '\n' : '')
+ foldLine(line, width);
prevMoreIndented = moreIndented;
}
return result;
}
// Greedy line breaking.
// Picks the longest line under the limit each time,
// otherwise settles for the shortest line over the limit.
// NB. More-indented lines *cannot* be folded, as that would add an extra \n.
function foldLine(line, width) {
if (line === '' || line[0] === ' ') return line;
// Since a more-indented line adds a \n, breaks can't be followed by a space.
var breakRe = / [^ ]/g; // note: the match index will always be <= length-2.
var match;
// start is an inclusive index. end, curr, and next are exclusive.
var start = 0, end, curr = 0, next = 0;
var result = '';
// Invariants: 0 <= start <= length-1.
// 0 <= curr <= next <= max(0, length-2). curr - start <= width.
// Inside the loop:
// A match implies length >= 2, so curr and next are <= length-2.
while ((match = breakRe.exec(line))) {
next = match.index;
// maintain invariant: curr - start <= width
if (next - start > width) {
end = (curr > start) ? curr : next; // derive end <= length-2
result += '\n' + line.slice(start, end);
// skip the space that was output as \n
start = end + 1; // derive start <= length-1
}
curr = next;
}
// By the invariants, start <= length-1, so there is something left over.
// It is either the whole string or a part starting from non-whitespace.
result += '\n';
// Insert a break if the remainder is too long and there is a break available.
if (line.length - start > width && curr > start) {
result += line.slice(start, curr) + '\n' + line.slice(curr + 1);
} else {
result += line.slice(start);
}
return result.slice(1); // drop extra \n joiner
}
// Escapes a double-quoted string.
function escapeString(string) {
var result = '';
var char, nextChar;
var escapeSeq;
for (var i = 0; i < string.length; i++) {
char = string.charCodeAt(i);
// Check for surrogate pairs (reference Unicode 3.0 section "3.7 Surrogates").
if (char >= 0xD800 && char <= 0xDBFF/* high surrogate */) {
nextChar = string.charCodeAt(i + 1);
if (nextChar >= 0xDC00 && nextChar <= 0xDFFF/* low surrogate */) {
// Combine the surrogate pair and store it escaped.
result += encodeHex((char - 0xD800) * 0x400 + nextChar - 0xDC00 + 0x10000);
// Advance index one extra since we already used that char here.
i++; continue;
}
}
escapeSeq = ESCAPE_SEQUENCES[char];
result += !escapeSeq && isPrintable(char)
? string[i]
: escapeSeq || encodeHex(char);
}
return result;
}
function writeFlowSequence(state, level, object) {
var _result = '',
_tag = state.tag,
index,
length;
for (index = 0, length = object.length; index < length; index += 1) {
// Write only valid elements.
if (writeNode(state, level, object[index], false, false)) {
if (index !== 0) _result += ',' + (!state.condenseFlow ? ' ' : '');
_result += state.dump;
}
}
state.tag = _tag;
state.dump = '[' + _result + ']';
}
function writeBlockSequence(state, level, object, compact) {
var _result = '',
_tag = state.tag,
index,
length;
for (index = 0, length = object.length; index < length; index += 1) {
// Write only valid elements.
if (writeNode(state, level + 1, object[index], true, true)) {
if (!compact || index !== 0) {
_result += generateNextLine(state, level);
}
if (state.dump && CHAR_LINE_FEED === state.dump.charCodeAt(0)) {
_result += '-';
} else {
_result += '- ';
}
_result += state.dump;
}
}
state.tag = _tag;
state.dump = _result || '[]'; // Empty sequence if no valid values.
}
function writeFlowMapping(state, level, object) {
var _result = '',
_tag = state.tag,
objectKeyList = Object.keys(object),
index,
length,
objectKey,
objectValue,
pairBuffer;
for (index = 0, length = objectKeyList.length; index < length; index += 1) {
pairBuffer = state.condenseFlow ? '"' : '';
if (index !== 0) pairBuffer += ', ';
objectKey = objectKeyList[index];
objectValue = object[objectKey];
if (!writeNode(state, level, objectKey, false, false)) {
continue; // Skip this pair because of invalid key;
}
if (state.dump.length > 1024) pairBuffer += '? ';
pairBuffer += state.dump + (state.condenseFlow ? '"' : '') + ':' + (state.condenseFlow ? '' : ' ');
if (!writeNode(state, level, objectValue, false, false)) {
continue; // Skip this pair because of invalid value.
}
pairBuffer += state.dump;
// Both key and value are valid.
_result += pairBuffer;
}
state.tag = _tag;
state.dump = '{' + _result + '}';
}
function writeBlockMapping(state, level, object, compact) {
var _result = '',
_tag = state.tag,
objectKeyList = Object.keys(object),
index,
length,
objectKey,
objectValue,
explicitPair,
pairBuffer;
// Allow sorting keys so that the output file is deterministic
if (state.sortKeys === true) {
// Default sorting
objectKeyList.sort();
} else if (typeof state.sortKeys === 'function') {
// Custom sort function
objectKeyList.sort(state.sortKeys);
} else if (state.sortKeys) {
// Something is wrong
throw new YAMLException('sortKeys must be a boolean or a function');
}
for (index = 0, length = objectKeyList.length; index < length; index += 1) {
pairBuffer = '';
if (!compact || index !== 0) {
pairBuffer += generateNextLine(state, level);
}
objectKey = objectKeyList[index];
objectValue = object[objectKey];
if (!writeNode(state, level + 1, objectKey, true, true, true)) {
continue; // Skip this pair because of invalid key.
}
explicitPair = (state.tag !== null && state.tag !== '?') ||
(state.dump && state.dump.length > 1024);
if (explicitPair) {
if (state.dump && CHAR_LINE_FEED === state.dump.charCodeAt(0)) {
pairBuffer += '?';
} else {
pairBuffer += '? ';
}
}
pairBuffer += state.dump;
if (explicitPair) {
pairBuffer += generateNextLine(state, level);
}
if (!writeNode(state, level + 1, objectValue, true, explicitPair)) {
continue; // Skip this pair because of invalid value.
}
if (state.dump && CHAR_LINE_FEED === state.dump.charCodeAt(0)) {
pairBuffer += ':';
} else {
pairBuffer += ': ';
}
pairBuffer += state.dump;
// Both key and value are valid.
_result += pairBuffer;
}
state.tag = _tag;
state.dump = _result || '{}'; // Empty mapping if no valid pairs.
}
function detectType(state, object, explicit) {
var _result, typeList, index, length, type, style;
typeList = explicit ? state.explicitTypes : state.implicitTypes;
for (index = 0, length = typeList.length; index < length; index += 1) {
type = typeList[index];
if ((type.instanceOf || type.predicate) &&
(!type.instanceOf || ((typeof object === 'object') && (object instanceof type.instanceOf))) &&
(!type.predicate || type.predicate(object))) {
state.tag = explicit ? type.tag : '?';
if (type.represent) {
style = state.styleMap[type.tag] || type.defaultStyle;
if (_toString.call(type.represent) === '[object Function]') {
_result = type.represent(object, style);
} else if (_hasOwnProperty.call(type.represent, style)) {
_result = type.represent[style](object, style);
} else {
throw new YAMLException('!<' + type.tag + '> tag resolver accepts not "' + style + '" style');
}
state.dump = _result;
}
return true;
}
}
return false;
}
// Serializes `object` and writes it to global `result`.
// Returns true on success, or false on invalid object.
//
function writeNode(state, level, object, block, compact, iskey) {
state.tag = null;
state.dump = object;
if (!detectType(state, object, false)) {
detectType(state, object, true);
}
var type = _toString.call(state.dump);
if (block) {
block = (state.flowLevel < 0 || state.flowLevel > level);
}
var objectOrArray = type === '[object Object]' || type === '[object Array]',
duplicateIndex,
duplicate;
if (objectOrArray) {
duplicateIndex = state.duplicates.indexOf(object);
duplicate = duplicateIndex !== -1;
}
if ((state.tag !== null && state.tag !== '?') || duplicate || (state.indent !== 2 && level > 0)) {
compact = false;
}
if (duplicate && state.usedDuplicates[duplicateIndex]) {
state.dump = '*ref_' + duplicateIndex;
} else {
if (objectOrArray && duplicate && !state.usedDuplicates[duplicateIndex]) {
state.usedDuplicates[duplicateIndex] = true;
}
if (type === '[object Object]') {
if (block && (Object.keys(state.dump).length !== 0)) {
writeBlockMapping(state, level, state.dump, compact);
if (duplicate) {
state.dump = '&ref_' + duplicateIndex + state.dump;
}
} else {
writeFlowMapping(state, level, state.dump);
if (duplicate) {
state.dump = '&ref_' + duplicateIndex + ' ' + state.dump;
}
}
} else if (type === '[object Array]') {
if (block && (state.dump.length !== 0)) {
writeBlockSequence(state, level, state.dump, compact);
if (duplicate) {
state.dump = '&ref_' + duplicateIndex + state.dump;
}
} else {
writeFlowSequence(state, level, state.dump);
if (duplicate) {
state.dump = '&ref_' + duplicateIndex + ' ' + state.dump;
}
}
} else if (type === '[object String]') {
if (state.tag !== '?') {
writeScalar(state, state.dump, level, iskey);
}
} else {
if (state.skipInvalid) return false;
throw new YAMLException('unacceptable kind of an object to dump ' + type);
}
if (state.tag !== null && state.tag !== '?') {
state.dump = '!<' + state.tag + '> ' + state.dump;
}
}
return true;
}
function getDuplicateReferences(object, state) {
var objects = [],
duplicatesIndexes = [],
index,
length;
inspectNode(object, objects, duplicatesIndexes);
for (index = 0, length = duplicatesIndexes.length; index < length; index += 1) {
state.duplicates.push(objects[duplicatesIndexes[index]]);
}
state.usedDuplicates = new Array(length);
}
function inspectNode(object, objects, duplicatesIndexes) {
var objectKeyList,
index,
length;
if (object !== null && typeof object === 'object') {
index = objects.indexOf(object);
if (index !== -1) {
if (duplicatesIndexes.indexOf(index) === -1) {
duplicatesIndexes.push(index);
}
} else {
objects.push(object);
if (Array.isArray(object)) {
for (index = 0, length = object.length; index < length; index += 1) {
inspectNode(object[index], objects, duplicatesIndexes);
}
} else {
objectKeyList = Object.keys(object);
for (index = 0, length = objectKeyList.length; index < length; index += 1) {
inspectNode(object[objectKeyList[index]], objects, duplicatesIndexes);
}
}
}
}
}
function dump(input, options) {
options = options || {};
var state = new State(options);
if (!state.noRefs) getDuplicateReferences(input, state);
if (writeNode(state, 0, input, true, true)) return state.dump + '\n';
return '';
}
function safeDump(input, options) {
return dump(input, common.extend({ schema: DEFAULT_SAFE_SCHEMA }, options));
}
module.exports.dump = dump;
module.exports.safeDump = safeDump;

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// YAML error class. http://stackoverflow.com/questions/8458984
//
'use strict';
function YAMLException(reason, mark) {
// Super constructor
Error.call(this);
this.name = 'YAMLException';
this.reason = reason;
this.mark = mark;
this.message = (this.reason || '(unknown reason)') + (this.mark ? ' ' + this.mark.toString() : '');
// 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.prototype = Object.create(Error.prototype);
YAMLException.prototype.constructor = YAMLException;
YAMLException.prototype.toString = function toString(compact) {
var result = this.name + ': ';
result += this.reason || '(unknown reason)';
if (!compact && this.mark) {
result += ' ' + this.mark.toString();
}
return result;
};
module.exports = YAMLException;

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'use strict';
var common = require('./common');
function Mark(name, buffer, position, line, column) {
this.name = name;
this.buffer = buffer;
this.position = position;
this.line = line;
this.column = column;
}
Mark.prototype.getSnippet = function getSnippet(indent, maxLength) {
var head, start, tail, end, snippet;
if (!this.buffer) return null;
indent = indent || 4;
maxLength = maxLength || 75;
head = '';
start = this.position;
while (start > 0 && '\x00\r\n\x85\u2028\u2029'.indexOf(this.buffer.charAt(start - 1)) === -1) {
start -= 1;
if (this.position - start > (maxLength / 2 - 1)) {
head = ' ... ';
start += 5;
break;
}
}
tail = '';
end = this.position;
while (end < this.buffer.length && '\x00\r\n\x85\u2028\u2029'.indexOf(this.buffer.charAt(end)) === -1) {
end += 1;
if (end - this.position > (maxLength / 2 - 1)) {
tail = ' ... ';
end -= 5;
break;
}
}
snippet = this.buffer.slice(start, end);
return common.repeat(' ', indent) + head + snippet + tail + '\n' +
common.repeat(' ', indent + this.position - start + head.length) + '^';
};
Mark.prototype.toString = function toString(compact) {
var snippet, where = '';
if (this.name) {
where += 'in "' + this.name + '" ';
}
where += 'at line ' + (this.line + 1) + ', column ' + (this.column + 1);
if (!compact) {
snippet = this.getSnippet();
if (snippet) {
where += ':\n' + snippet;
}
}
return where;
};
module.exports = Mark;

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'use strict';
/*eslint-disable max-len*/
var common = require('./common');
var YAMLException = require('./exception');
var Type = require('./type');
function compileList(schema, name, result) {
var exclude = [];
schema.include.forEach(function (includedSchema) {
result = compileList(includedSchema, name, result);
});
schema[name].forEach(function (currentType) {
result.forEach(function (previousType, previousIndex) {
if (previousType.tag === currentType.tag && previousType.kind === currentType.kind) {
exclude.push(previousIndex);
}
});
result.push(currentType);
});
return result.filter(function (type, index) {
return exclude.indexOf(index) === -1;
});
}
function compileMap(/* lists... */) {
var result = {
scalar: {},
sequence: {},
mapping: {},
fallback: {}
}, index, length;
function collectType(type) {
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(definition) {
this.include = definition.include || [];
this.implicit = definition.implicit || [];
this.explicit = definition.explicit || [];
this.implicit.forEach(function (type) {
if (type.loadKind && type.loadKind !== 'scalar') {
throw new YAMLException('There is a non-scalar type in the implicit list of a schema. Implicit resolving of such types is not supported.');
}
});
this.compiledImplicit = compileList(this, 'implicit', []);
this.compiledExplicit = compileList(this, 'explicit', []);
this.compiledTypeMap = compileMap(this.compiledImplicit, this.compiledExplicit);
}
Schema.DEFAULT = null;
Schema.create = function createSchema() {
var schemas, types;
switch (arguments.length) {
case 1:
schemas = Schema.DEFAULT;
types = arguments[0];
break;
case 2:
schemas = arguments[0];
types = arguments[1];
break;
default:
throw new YAMLException('Wrong number of arguments for Schema.create function');
}
schemas = common.toArray(schemas);
types = common.toArray(types);
if (!schemas.every(function (schema) { return schema instanceof Schema; })) {
throw new YAMLException('Specified list of super schemas (or a single Schema object) contains a non-Schema object.');
}
if (!types.every(function (type) { return type instanceof Type; })) {
throw new YAMLException('Specified list of YAML types (or a single Type object) contains a non-Type object.');
}
return new Schema({
include: schemas,
explicit: types
});
};
module.exports = Schema;

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// Standard YAML's Core schema.
// http://www.yaml.org/spec/1.2/spec.html#id2804923
//
// NOTE: JS-YAML does not support schema-specific tag resolution restrictions.
// So, Core schema has no distinctions from JSON schema is JS-YAML.
'use strict';
var Schema = require('../schema');
module.exports = new Schema({
include: [
require('./json')
]
});

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// JS-YAML's default schema for `load` function.
// It is not described in the YAML specification.
//
// This schema is based on JS-YAML's default safe schema and includes
// JavaScript-specific types: !!js/undefined, !!js/regexp and !!js/function.
//
// Also this schema is used as default base schema at `Schema.create` function.
'use strict';
var Schema = require('../schema');
module.exports = Schema.DEFAULT = new Schema({
include: [
require('./default_safe')
],
explicit: [
require('../type/js/undefined'),
require('../type/js/regexp'),
require('../type/js/function')
]
});

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// JS-YAML's default schema for `safeLoad` function.
// It is not described in the YAML specification.
//
// This schema is based on standard YAML's Core schema and includes most of
// extra types described at YAML tag repository. (http://yaml.org/type/)
'use strict';
var Schema = require('../schema');
module.exports = new Schema({
include: [
require('./core')
],
implicit: [
require('../type/timestamp'),
require('../type/merge')
],
explicit: [
require('../type/binary'),
require('../type/omap'),
require('../type/pairs'),
require('../type/set')
]
});

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// Standard YAML's Failsafe schema.
// http://www.yaml.org/spec/1.2/spec.html#id2802346
'use strict';
var Schema = require('../schema');
module.exports = new Schema({
explicit: [
require('../type/str'),
require('../type/seq'),
require('../type/map')
]
});

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// Standard YAML's JSON schema.
// http://www.yaml.org/spec/1.2/spec.html#id2803231
//
// NOTE: JS-YAML does not support schema-specific tag resolution restrictions.
// So, this schema is not such strict as defined in the YAML specification.
// It allows numbers in binary notaion, use `Null` and `NULL` as `null`, etc.
'use strict';
var Schema = require('../schema');
module.exports = new Schema({
include: [
require('./failsafe')
],
implicit: [
require('../type/null'),
require('../type/bool'),
require('../type/int'),
require('../type/float')
]
});

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'use strict';
var YAMLException = require('./exception');
var TYPE_CONSTRUCTOR_OPTIONS = [
'kind',
'resolve',
'construct',
'instanceOf',
'predicate',
'represent',
'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(tag, options) {
options = options || {};
Object.keys(options).forEach(function (name) {
if (TYPE_CONSTRUCTOR_OPTIONS.indexOf(name) === -1) {
throw new YAMLException('Unknown option "' + name + '" is met in definition of "' + tag + '" YAML type.');
}
});
// TODO: Add tag format check.
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.defaultStyle = options['defaultStyle'] || null;
this.styleAliases = compileStyleAliases(options['styleAliases'] || null);
if (YAML_NODE_KINDS.indexOf(this.kind) === -1) {
throw new YAMLException('Unknown kind "' + this.kind + '" is specified for "' + tag + '" YAML type.');
}
}
module.exports = Type;

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'use strict';
/*eslint-disable no-bitwise*/
var NodeBuffer;
try {
// A trick for browserified version, to not include `Buffer` shim
var _require = require;
NodeBuffer = _require('buffer').Buffer;
} catch (__) {}
var Type = require('../type');
// [ 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);
}
// Wrap into Buffer for NodeJS and leave Array for browser
if (NodeBuffer) {
// Support node 6.+ Buffer API when available
return NodeBuffer.from ? NodeBuffer.from(result) : new NodeBuffer(result);
}
return 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(object) {
return NodeBuffer && NodeBuffer.isBuffer(object);
}
module.exports = new Type('tag:yaml.org,2002:binary', {
kind: 'scalar',
resolve: resolveYamlBinary,
construct: constructYamlBinary,
predicate: isBinary,
represent: representYamlBinary
});

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'use strict';
var Type = require('../type');
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]';
}
module.exports = 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'
});

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'use strict';
var common = require('../common');
var Type = require('../type');
var YAML_FLOAT_PATTERN = new RegExp(
// 2.5e4, 2.5 and integers
'^(?:[-+]?(?:0|[1-9][0-9_]*)(?:\\.[0-9_]*)?(?:[eE][-+]?[0-9]+)?' +
// .2e4, .2
// special case, seems not from spec
'|\\.[0-9_]+(?:[eE][-+]?[0-9]+)?' +
// 20:59
'|[-+]?[0-9][0-9_]*(?::[0-5]?[0-9])+\\.[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, base, digits;
value = data.replace(/_/g, '').toLowerCase();
sign = value[0] === '-' ? -1 : 1;
digits = [];
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;
} else if (value.indexOf(':') >= 0) {
value.split(':').forEach(function (v) {
digits.unshift(parseFloat(v, 10));
});
value = 0.0;
base = 1;
digits.forEach(function (d) {
value += d * base;
base *= 60;
});
return sign * value;
}
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));
}
module.exports = new Type('tag:yaml.org,2002:float', {
kind: 'scalar',
resolve: resolveYamlFloat,
construct: constructYamlFloat,
predicate: isFloat,
represent: representYamlFloat,
defaultStyle: 'lowercase'
});

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'use strict';
var common = require('../common');
var Type = require('../type');
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 !== '_';
}
// base 8
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) or base 60
// value should not start with `_`;
if (ch === '_') return false;
for (; index < max; index++) {
ch = data[index];
if (ch === '_') continue;
if (ch === ':') break;
if (!isDecCode(data.charCodeAt(index))) {
return false;
}
hasDigits = true;
}
// Should have digits and should not end with `_`
if (!hasDigits || ch === '_') return false;
// if !base60 - done;
if (ch !== ':') return true;
// base60 almost not used, no needs to optimize
return /^(:[0-5]?[0-9])+$/.test(data.slice(index));
}
function constructYamlInteger(data) {
var value = data, sign = 1, ch, base, digits = [];
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, 16);
return sign * parseInt(value, 8);
}
if (value.indexOf(':') !== -1) {
value.split(':').forEach(function (v) {
digits.unshift(parseInt(v, 10));
});
value = 0;
base = 1;
digits.forEach(function (d) {
value += (d * base);
base *= 60;
});
return sign * value;
}
return sign * parseInt(value, 10);
}
function isInteger(object) {
return (Object.prototype.toString.call(object)) === '[object Number]' &&
(object % 1 === 0 && !common.isNegativeZero(object));
}
module.exports = new Type('tag:yaml.org,2002:int', {
kind: 'scalar',
resolve: resolveYamlInteger,
construct: constructYamlInteger,
predicate: isInteger,
represent: {
binary: function (object) { return '0b' + object.toString(2); },
octal: function (object) { return '0' + object.toString(8); },
decimal: function (object) { return object.toString(10); },
hexadecimal: function (object) { return '0x' + object.toString(16).toUpperCase(); }
},
defaultStyle: 'decimal',
styleAliases: {
binary: [ 2, 'bin' ],
octal: [ 8, 'oct' ],
decimal: [ 10, 'dec' ],
hexadecimal: [ 16, 'hex' ]
}
});

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'use strict';
var esprima;
// Browserified version does not have esprima
//
// 1. For node.js just require module as deps
// 2. For browser try to require mudule via external AMD system.
// If not found - try to fallback to window.esprima. If not
// found too - then fail to parse.
//
try {
// workaround to exclude package from browserify list.
var _require = require;
esprima = _require('esprima');
} catch (_) {
/*global window */
if (typeof window !== 'undefined') esprima = window.esprima;
}
var Type = require('../../type');
function resolveJavascriptFunction(data) {
if (data === null) return false;
try {
var source = '(' + data + ')',
ast = esprima.parse(source, { range: true });
if (ast.type !== 'Program' ||
ast.body.length !== 1 ||
ast.body[0].type !== 'ExpressionStatement' ||
ast.body[0].expression.type !== 'FunctionExpression') {
return false;
}
return true;
} catch (err) {
return false;
}
}
function constructJavascriptFunction(data) {
/*jslint evil:true*/
var source = '(' + data + ')',
ast = esprima.parse(source, { range: true }),
params = [],
body;
if (ast.type !== 'Program' ||
ast.body.length !== 1 ||
ast.body[0].type !== 'ExpressionStatement' ||
ast.body[0].expression.type !== 'FunctionExpression') {
throw new Error('Failed to resolve function');
}
ast.body[0].expression.params.forEach(function (param) {
params.push(param.name);
});
body = ast.body[0].expression.body.range;
// Esprima's ranges include the first '{' and the last '}' characters on
// function expressions. So cut them out.
/*eslint-disable no-new-func*/
return new Function(params, source.slice(body[0] + 1, body[1] - 1));
}
function representJavascriptFunction(object /*, style*/) {
return object.toString();
}
function isFunction(object) {
return Object.prototype.toString.call(object) === '[object Function]';
}
module.exports = new Type('tag:yaml.org,2002:js/function', {
kind: 'scalar',
resolve: resolveJavascriptFunction,
construct: constructJavascriptFunction,
predicate: isFunction,
represent: representJavascriptFunction
});

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'use strict';
var Type = require('../../type');
function resolveJavascriptRegExp(data) {
if (data === null) return false;
if (data.length === 0) return false;
var regexp = data,
tail = /\/([gim]*)$/.exec(data),
modifiers = '';
// if regexp starts with '/' it can have modifiers and must be properly closed
// `/foo/gim` - modifiers tail can be maximum 3 chars
if (regexp[0] === '/') {
if (tail) modifiers = tail[1];
if (modifiers.length > 3) return false;
// if expression starts with /, is should be properly terminated
if (regexp[regexp.length - modifiers.length - 1] !== '/') return false;
}
return true;
}
function constructJavascriptRegExp(data) {
var regexp = data,
tail = /\/([gim]*)$/.exec(data),
modifiers = '';
// `/foo/gim` - tail can be maximum 4 chars
if (regexp[0] === '/') {
if (tail) modifiers = tail[1];
regexp = regexp.slice(1, regexp.length - modifiers.length - 1);
}
return new RegExp(regexp, modifiers);
}
function representJavascriptRegExp(object /*, style*/) {
var result = '/' + object.source + '/';
if (object.global) result += 'g';
if (object.multiline) result += 'm';
if (object.ignoreCase) result += 'i';
return result;
}
function isRegExp(object) {
return Object.prototype.toString.call(object) === '[object RegExp]';
}
module.exports = new Type('tag:yaml.org,2002:js/regexp', {
kind: 'scalar',
resolve: resolveJavascriptRegExp,
construct: constructJavascriptRegExp,
predicate: isRegExp,
represent: representJavascriptRegExp
});

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'use strict';
var Type = require('../../type');
function resolveJavascriptUndefined() {
return true;
}
function constructJavascriptUndefined() {
/*eslint-disable no-undefined*/
return undefined;
}
function representJavascriptUndefined() {
return '';
}
function isUndefined(object) {
return typeof object === 'undefined';
}
module.exports = new Type('tag:yaml.org,2002:js/undefined', {
kind: 'scalar',
resolve: resolveJavascriptUndefined,
construct: constructJavascriptUndefined,
predicate: isUndefined,
represent: representJavascriptUndefined
});

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'use strict';
var Type = require('../type');
module.exports = new Type('tag:yaml.org,2002:map', {
kind: 'mapping',
construct: function (data) { return data !== null ? data : {}; }
});

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'use strict';
var Type = require('../type');
function resolveYamlMerge(data) {
return data === '<<' || data === null;
}
module.exports = new Type('tag:yaml.org,2002:merge', {
kind: 'scalar',
resolve: resolveYamlMerge
});

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'use strict';
var Type = require('../type');
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;
}
module.exports = 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'; }
},
defaultStyle: 'lowercase'
});

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'use strict';
var Type = require('../type');
var _hasOwnProperty = Object.prototype.hasOwnProperty;
var _toString = 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.call(pair) !== '[object Object]') return false;
for (pairKey in pair) {
if (_hasOwnProperty.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 : [];
}
module.exports = new Type('tag:yaml.org,2002:omap', {
kind: 'sequence',
resolve: resolveYamlOmap,
construct: constructYamlOmap
});

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'use strict';
var Type = require('../type');
var _toString = 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.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;
}
module.exports = new Type('tag:yaml.org,2002:pairs', {
kind: 'sequence',
resolve: resolveYamlPairs,
construct: constructYamlPairs
});

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'use strict';
var Type = require('../type');
module.exports = new Type('tag:yaml.org,2002:seq', {
kind: 'sequence',
construct: function (data) { return data !== null ? data : []; }
});

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'use strict';
var Type = require('../type');
var _hasOwnProperty = Object.prototype.hasOwnProperty;
function resolveYamlSet(data) {
if (data === null) return true;
var key, object = data;
for (key in object) {
if (_hasOwnProperty.call(object, key)) {
if (object[key] !== null) return false;
}
}
return true;
}
function constructYamlSet(data) {
return data !== null ? data : {};
}
module.exports = new Type('tag:yaml.org,2002:set', {
kind: 'mapping',
resolve: resolveYamlSet,
construct: constructYamlSet
});

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'use strict';
var Type = require('../type');
module.exports = new Type('tag:yaml.org,2002:str', {
kind: 'scalar',
construct: function (data) { return data !== null ? data : ''; }
});

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'use strict';
var Type = require('../type');
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();
}
module.exports = new Type('tag:yaml.org,2002:timestamp', {
kind: 'scalar',
resolve: resolveYamlTimestamp,
construct: constructYamlTimestamp,
instanceOf: Date,
represent: representYamlTimestamp
});