1594 lines
47 KiB
JavaScript
1594 lines
47 KiB
JavaScript
'use strict';
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var common = require('./common');
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var YAMLException = require('./exception');
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var Mark = require('./mark');
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var DEFAULT_SAFE_SCHEMA = require('./schema/default_safe');
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var DEFAULT_FULL_SCHEMA = require('./schema/default_full');
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var _hasOwnProperty = Object.prototype.hasOwnProperty;
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var CONTEXT_FLOW_IN = 1;
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var CONTEXT_FLOW_OUT = 2;
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var CONTEXT_BLOCK_IN = 3;
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var CONTEXT_BLOCK_OUT = 4;
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var CHOMPING_CLIP = 1;
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var CHOMPING_STRIP = 2;
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var CHOMPING_KEEP = 3;
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var CHAR_TAB = 0x09; /* Tab */
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var CHAR_LINE_FEED = 0x0A; /* LF */
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var CHAR_CARRIAGE_RETURN = 0x0D; /* CR */
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var CHAR_SPACE = 0x20; /* Space */
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var CHAR_EXCLAMATION = 0x21; /* ! */
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var CHAR_DOUBLE_QUOTE = 0x22; /* " */
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var CHAR_SHARP = 0x23; /* # */
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var CHAR_PERCENT = 0x25; /* % */
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var CHAR_AMPERSAND = 0x26; /* & */
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var CHAR_SINGLE_QUOTE = 0x27; /* ' */
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var CHAR_ASTERISK = 0x2A; /* * */
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var CHAR_PLUS = 0x2B; /* + */
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var CHAR_COMMA = 0x2C; /* , */
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var CHAR_MINUS = 0x2D; /* - */
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var CHAR_DOT = 0x2E; /* . */
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var CHAR_SLASH = 0x2F; /* / */
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var CHAR_DIGIT_ZERO = 0x30; /* 0 */
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var CHAR_DIGIT_ONE = 0x31; /* 1 */
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var CHAR_DIGIT_NINE = 0x39; /* 9 */
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var CHAR_COLON = 0x3A; /* : */
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var CHAR_LESS_THAN = 0x3C; /* < */
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var CHAR_GREATER_THAN = 0x3E; /* > */
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var CHAR_QUESTION = 0x3F; /* ? */
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var CHAR_COMMERCIAL_AT = 0x40; /* @ */
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var CHAR_CAPITAL_A = 0x41; /* A */
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var CHAR_CAPITAL_F = 0x46; /* F */
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var CHAR_CAPITAL_L = 0x4C; /* L */
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var CHAR_CAPITAL_N = 0x4E; /* N */
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var CHAR_CAPITAL_P = 0x50; /* P */
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var CHAR_CAPITAL_U = 0x55; /* U */
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var CHAR_LEFT_SQUARE_BRACKET = 0x5B; /* [ */
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var CHAR_BACKSLASH = 0x5C; /* \ */
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var CHAR_RIGHT_SQUARE_BRACKET = 0x5D; /* ] */
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var CHAR_UNDERSCORE = 0x5F; /* _ */
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var CHAR_GRAVE_ACCENT = 0x60; /* ` */
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var CHAR_SMALL_A = 0x61; /* a */
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var CHAR_SMALL_B = 0x62; /* b */
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var CHAR_SMALL_E = 0x65; /* e */
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var CHAR_SMALL_F = 0x66; /* f */
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var CHAR_SMALL_N = 0x6E; /* n */
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var CHAR_SMALL_R = 0x72; /* r */
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var CHAR_SMALL_T = 0x74; /* t */
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var CHAR_SMALL_U = 0x75; /* u */
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var CHAR_SMALL_V = 0x76; /* v */
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var CHAR_SMALL_X = 0x78; /* x */
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var CHAR_LEFT_CURLY_BRACKET = 0x7B; /* { */
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var CHAR_VERTICAL_LINE = 0x7C; /* | */
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var CHAR_RIGHT_CURLY_BRACKET = 0x7D; /* } */
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var SIMPLE_ESCAPE_SEQUENCES = {};
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SIMPLE_ESCAPE_SEQUENCES[CHAR_DIGIT_ZERO] = '\x00';
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SIMPLE_ESCAPE_SEQUENCES[CHAR_SMALL_A] = '\x07';
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SIMPLE_ESCAPE_SEQUENCES[CHAR_SMALL_B] = '\x08';
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SIMPLE_ESCAPE_SEQUENCES[CHAR_SMALL_T] = '\x09';
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SIMPLE_ESCAPE_SEQUENCES[CHAR_TAB] = '\x09';
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SIMPLE_ESCAPE_SEQUENCES[CHAR_SMALL_N] = '\x0A';
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SIMPLE_ESCAPE_SEQUENCES[CHAR_SMALL_V] = '\x0B';
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SIMPLE_ESCAPE_SEQUENCES[CHAR_SMALL_F] = '\x0C';
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SIMPLE_ESCAPE_SEQUENCES[CHAR_SMALL_R] = '\x0D';
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SIMPLE_ESCAPE_SEQUENCES[CHAR_SMALL_E] = '\x1B';
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SIMPLE_ESCAPE_SEQUENCES[CHAR_SPACE] = ' ';
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SIMPLE_ESCAPE_SEQUENCES[CHAR_DOUBLE_QUOTE] = '\x22';
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SIMPLE_ESCAPE_SEQUENCES[CHAR_SLASH] = '/';
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SIMPLE_ESCAPE_SEQUENCES[CHAR_BACKSLASH] = '\x5C';
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SIMPLE_ESCAPE_SEQUENCES[CHAR_CAPITAL_N] = '\x85';
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SIMPLE_ESCAPE_SEQUENCES[CHAR_UNDERSCORE] = '\xA0';
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SIMPLE_ESCAPE_SEQUENCES[CHAR_CAPITAL_L] = '\u2028';
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SIMPLE_ESCAPE_SEQUENCES[CHAR_CAPITAL_P] = '\u2029';
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var HEXADECIMAL_ESCAPE_SEQUENCES = {};
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HEXADECIMAL_ESCAPE_SEQUENCES[CHAR_SMALL_X] = 2;
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HEXADECIMAL_ESCAPE_SEQUENCES[CHAR_SMALL_U] = 4;
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HEXADECIMAL_ESCAPE_SEQUENCES[CHAR_CAPITAL_U] = 8;
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var PATTERN_NON_PRINTABLE = /[\x00-\x08\x0B\x0C\x0E-\x1F\x7F-\x84\x86-\x9F\uD800-\uDFFF\uFFFE\uFFFF]/;
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var PATTERN_NON_ASCII_LINE_BREAKS = /[\x85\u2028\u2029]/;
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var PATTERN_FLOW_INDICATORS = /[,\[\]\{\}]/;
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var PATTERN_TAG_HANDLE = /^(?:!|!!|![a-z\-]+!)$/i;
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var PATTERN_TAG_URI = /^(?:!|[^,\[\]\{\}])(?:%[0-9a-f]{2}|[0-9a-z\-#;\/\?:@&=\+\$,_\.!~\*'\(\)\[\]])*$/i;
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function State(input, options) {
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this.input = input;
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this.filename = options['filename'] || null;
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this.schema = options['schema'] || DEFAULT_FULL_SCHEMA;
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this.strict = options['strict'] || false;
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this.legacy = options['legacy'] || false;
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this.implicitTypes = this.schema.compiledImplicit;
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this.typeMap = this.schema.compiledTypeMap;
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this.length = input.length;
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this.position = 0;
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this.line = 0;
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this.lineStart = 0;
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this.lineIndent = 0;
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this.character = input.charCodeAt(0 /*position*/);
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/*
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this.version;
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this.checkLineBreaks;
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this.tagMap;
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this.anchorMap;
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this.tag;
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this.anchor;
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this.kind;
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this.result;*/
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}
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function generateError(state, message) {
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return new YAMLException(
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message,
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new Mark(state.filename, state.input, state.position, state.line, (state.position - state.lineStart)));
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}
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function throwError(state, message) {
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throw generateError(state, message);
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}
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function throwWarning(state, message) {
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var error = generateError(state, message);
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if (state.strict) {
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throw error;
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} else {
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console.warn(error.toString());
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}
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}
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var directiveHandlers = {
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'YAML': function handleYamlDirective(state, name, args) {
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var match, major, minor;
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if (null !== state.version) {
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throwError(state, 'duplication of %YAML directive');
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}
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if (1 !== args.length) {
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throwError(state, 'YAML directive accepts exactly one argument');
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}
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match = /^([0-9]+)\.([0-9]+)$/.exec(args[0]);
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if (null === match) {
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throwError(state, 'ill-formed argument of the YAML directive');
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}
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major = parseInt(match[1], 10);
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minor = parseInt(match[2], 10);
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if (1 !== major) {
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throwError(state, 'unacceptable YAML version of the document');
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}
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state.version = args[0];
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state.checkLineBreaks = (minor < 2);
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if (1 !== minor && 2 !== minor) {
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throwWarning(state, 'unsupported YAML version of the document');
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}
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},
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'TAG': function handleTagDirective(state, name, args) {
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var handle, prefix;
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if (2 !== args.length) {
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throwError(state, 'TAG directive accepts exactly two arguments');
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}
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handle = args[0];
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prefix = args[1];
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if (!PATTERN_TAG_HANDLE.test(handle)) {
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throwError(state, 'ill-formed tag handle (first argument) of the TAG directive');
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}
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if (_hasOwnProperty.call(state.tagMap, handle)) {
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throwError(state, 'there is a previously declared suffix for "' + handle + '" tag handle');
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}
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if (!PATTERN_TAG_URI.test(prefix)) {
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throwError(state, 'ill-formed tag prefix (second argument) of the TAG directive');
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}
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state.tagMap[handle] = prefix;
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}
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};
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function captureSegment(state, start, end, checkJson) {
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var _position, _length, _character, _result;
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if (start < end) {
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_result = state.input.slice(start, end);
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if (checkJson) {
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for (_position = 0, _length = _result.length;
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_position < _length;
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_position += 1) {
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_character = _result.charCodeAt(_position);
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if (!(0x09 === _character ||
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0x20 <= _character && _character <= 0x10FFFF)) {
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throwError(state, 'expected valid JSON character');
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}
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}
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}
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state.result += _result;
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}
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}
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function mergeMappings(state, destination, source) {
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var sourceKeys, key, index, quantity;
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if (!common.isObject(source)) {
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throwError(state, 'cannot merge mappings; the provided source object is unacceptable');
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}
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sourceKeys = Object.keys(source);
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for (index = 0, quantity = sourceKeys.length; index < quantity; index += 1) {
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key = sourceKeys[index];
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if (!_hasOwnProperty.call(destination, key)) {
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destination[key] = source[key];
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}
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}
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}
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function storeMappingPair(state, _result, keyTag, keyNode, valueNode) {
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var index, quantity;
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keyNode = String(keyNode);
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if (null === _result) {
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_result = {};
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}
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if ('tag:yaml.org,2002:merge' === keyTag) {
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if (Array.isArray(valueNode)) {
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for (index = 0, quantity = valueNode.length; index < quantity; index += 1) {
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mergeMappings(state, _result, valueNode[index]);
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}
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} else {
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mergeMappings(state, _result, valueNode);
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}
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} else {
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_result[keyNode] = valueNode;
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}
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return _result;
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}
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function readLineBreak(state) {
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if (CHAR_LINE_FEED === state.character) {
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state.position += 1;
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} else if (CHAR_CARRIAGE_RETURN === state.character) {
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if (CHAR_LINE_FEED === state.input.charCodeAt(state.position + 1)) {
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state.position += 2;
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} else {
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state.position += 1;
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}
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} else {
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throwError(state, 'a line break is expected');
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}
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state.line += 1;
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state.lineStart = state.position;
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state.character = state.input.charCodeAt(state.position);
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}
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function skipSeparationSpace(state, allowComments, checkIndent) {
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var lineBreaks = 0;
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while (state.position < state.length) {
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while (CHAR_SPACE === state.character || CHAR_TAB === state.character) {
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state.character = state.input.charCodeAt(++state.position);
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}
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if (allowComments && CHAR_SHARP === state.character) {
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do { state.character = state.input.charCodeAt(++state.position); }
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while (state.position < state.length &&
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CHAR_LINE_FEED !== state.character &&
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CHAR_CARRIAGE_RETURN !== state.character);
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}
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if (CHAR_LINE_FEED === state.character || CHAR_CARRIAGE_RETURN === state.character) {
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readLineBreak(state);
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lineBreaks += 1;
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state.lineIndent = 0;
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while (CHAR_SPACE === state.character) {
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state.lineIndent += 1;
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state.character = state.input.charCodeAt(++state.position);
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}
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if (state.lineIndent < checkIndent) {
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throwWarning(state, 'deficient indentation');
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}
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} else {
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break;
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}
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}
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return lineBreaks;
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}
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function testDocumentSeparator(state) {
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var _position, _character;
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if (state.position === state.lineStart &&
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(CHAR_MINUS === state.character || CHAR_DOT === state.character) &&
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state.input.charCodeAt(state.position + 1) === state.character &&
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state.input.charCodeAt(state.position + 2) === state.character) {
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_position = state.position + 3;
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_character = state.input.charCodeAt(_position);
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if (_position >= state.length ||
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CHAR_SPACE === _character ||
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CHAR_TAB === _character ||
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CHAR_LINE_FEED === _character ||
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CHAR_CARRIAGE_RETURN === _character) {
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return true;
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}
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}
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return false;
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}
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function writeFoldedLines(state, count) {
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if (1 === count) {
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state.result += ' ';
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} else if (count > 1) {
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state.result += common.repeat('\n', count - 1);
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}
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}
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function readPlainScalar(state, nodeIndent, withinFlowCollection) {
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var preceding,
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following,
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captureStart,
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captureEnd,
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hasPendingContent,
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_line,
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_lineStart,
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_lineIndent,
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_kind = state.kind,
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_result = state.result;
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if (CHAR_SPACE === state.character ||
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CHAR_TAB === state.character ||
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CHAR_LINE_FEED === state.character ||
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CHAR_CARRIAGE_RETURN === state.character ||
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CHAR_COMMA === state.character ||
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CHAR_LEFT_SQUARE_BRACKET === state.character ||
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CHAR_RIGHT_SQUARE_BRACKET === state.character ||
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CHAR_LEFT_CURLY_BRACKET === state.character ||
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CHAR_RIGHT_CURLY_BRACKET === state.character ||
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CHAR_SHARP === state.character ||
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CHAR_AMPERSAND === state.character ||
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CHAR_ASTERISK === state.character ||
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CHAR_EXCLAMATION === state.character ||
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CHAR_VERTICAL_LINE === state.character ||
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CHAR_GREATER_THAN === state.character ||
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CHAR_SINGLE_QUOTE === state.character ||
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CHAR_DOUBLE_QUOTE === state.character ||
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CHAR_PERCENT === state.character ||
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CHAR_COMMERCIAL_AT === state.character ||
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CHAR_GRAVE_ACCENT === state.character) {
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return false;
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}
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if (CHAR_QUESTION === state.character ||
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CHAR_MINUS === state.character) {
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following = state.input.charCodeAt(state.position + 1);
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if (CHAR_SPACE === following ||
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CHAR_TAB === following ||
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CHAR_LINE_FEED === following ||
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CHAR_CARRIAGE_RETURN === following ||
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withinFlowCollection &&
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(CHAR_COMMA === following ||
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CHAR_LEFT_SQUARE_BRACKET === following ||
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CHAR_RIGHT_SQUARE_BRACKET === following ||
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CHAR_LEFT_CURLY_BRACKET === following ||
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CHAR_RIGHT_CURLY_BRACKET === following)) {
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return false;
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}
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}
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state.kind = 'scalar';
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state.result = '';
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captureStart = captureEnd = state.position;
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hasPendingContent = false;
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while (state.position < state.length) {
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if (CHAR_COLON === state.character) {
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following = state.input.charCodeAt(state.position + 1);
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if (CHAR_SPACE === following ||
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CHAR_TAB === following ||
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CHAR_LINE_FEED === following ||
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CHAR_CARRIAGE_RETURN === following ||
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withinFlowCollection &&
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(CHAR_COMMA === following ||
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CHAR_LEFT_SQUARE_BRACKET === following ||
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CHAR_RIGHT_SQUARE_BRACKET === following ||
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CHAR_LEFT_CURLY_BRACKET === following ||
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CHAR_RIGHT_CURLY_BRACKET === following)) {
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break;
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}
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} else if (CHAR_SHARP === state.character) {
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preceding = state.input.charCodeAt(state.position - 1);
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if (CHAR_SPACE === preceding ||
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CHAR_TAB === preceding ||
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CHAR_LINE_FEED === preceding ||
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CHAR_CARRIAGE_RETURN === preceding) {
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break;
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}
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} else if ((state.position === state.lineStart && testDocumentSeparator(state)) ||
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withinFlowCollection &&
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(CHAR_COMMA === state.character ||
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CHAR_LEFT_SQUARE_BRACKET === state.character ||
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CHAR_RIGHT_SQUARE_BRACKET === state.character ||
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CHAR_LEFT_CURLY_BRACKET === state.character ||
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CHAR_RIGHT_CURLY_BRACKET === state.character)) {
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break;
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} else if (CHAR_LINE_FEED === state.character ||
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CHAR_CARRIAGE_RETURN === state.character) {
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_line = state.line;
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_lineStart = state.lineStart;
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_lineIndent = state.lineIndent;
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skipSeparationSpace(state, false, -1);
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if (state.lineIndent >= nodeIndent) {
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hasPendingContent = true;
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continue;
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} else {
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state.position = captureEnd;
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state.line = _line;
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state.lineStart = _lineStart;
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state.lineIndent = _lineIndent;
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state.character = state.input.charCodeAt(state.position);
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break;
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}
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}
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if (hasPendingContent) {
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captureSegment(state, captureStart, captureEnd, false);
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writeFoldedLines(state, state.line - _line);
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captureStart = captureEnd = state.position;
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hasPendingContent = false;
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}
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|
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if (CHAR_SPACE !== state.character && CHAR_TAB !== state.character) {
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captureEnd = state.position + 1;
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}
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state.character = state.input.charCodeAt(++state.position);
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|
}
|
|
|
|
captureSegment(state, captureStart, captureEnd, false);
|
|
|
|
if (state.result) {
|
|
return true;
|
|
} else {
|
|
state.kind = _kind;
|
|
state.result = _result;
|
|
return false;
|
|
}
|
|
}
|
|
|
|
function readSingleQuotedScalar(state, nodeIndent) {
|
|
var captureStart, captureEnd;
|
|
|
|
if (CHAR_SINGLE_QUOTE !== state.character) {
|
|
return false;
|
|
}
|
|
|
|
state.kind = 'scalar';
|
|
state.result = '';
|
|
state.character = state.input.charCodeAt(++state.position);
|
|
captureStart = captureEnd = state.position;
|
|
|
|
while (state.position < state.length) {
|
|
if (CHAR_SINGLE_QUOTE === state.character) {
|
|
captureSegment(state, captureStart, state.position, true);
|
|
state.character = state.input.charCodeAt(++state.position);
|
|
|
|
if (CHAR_SINGLE_QUOTE === state.character) {
|
|
captureStart = captureEnd = state.position;
|
|
state.character = state.input.charCodeAt(++state.position);
|
|
} else {
|
|
return true;
|
|
}
|
|
|
|
} else if (CHAR_LINE_FEED === state.character ||
|
|
CHAR_CARRIAGE_RETURN === state.character) {
|
|
captureSegment(state, captureStart, captureEnd, true);
|
|
writeFoldedLines(state, skipSeparationSpace(state, false, nodeIndent));
|
|
captureStart = captureEnd = state.position;
|
|
state.character = state.input.charCodeAt(state.position);
|
|
|
|
} else if (state.position === state.lineStart && testDocumentSeparator(state)) {
|
|
throwError(state, 'unexpected end of the document within a single quoted scalar');
|
|
|
|
} else {
|
|
state.character = state.input.charCodeAt(++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,
|
|
hexIndex,
|
|
hexOffset,
|
|
hexResult;
|
|
|
|
if (CHAR_DOUBLE_QUOTE !== state.character) {
|
|
return false;
|
|
}
|
|
|
|
state.kind = 'scalar';
|
|
state.result = '';
|
|
state.character = state.input.charCodeAt(++state.position);
|
|
captureStart = captureEnd = state.position;
|
|
|
|
while (state.position < state.length) {
|
|
if (CHAR_DOUBLE_QUOTE === state.character) {
|
|
captureSegment(state, captureStart, state.position, true);
|
|
state.character = state.input.charCodeAt(++state.position);
|
|
return true;
|
|
|
|
} else if (CHAR_BACKSLASH === state.character) {
|
|
captureSegment(state, captureStart, state.position, true);
|
|
state.character = state.input.charCodeAt(++state.position);
|
|
|
|
if (CHAR_LINE_FEED === state.character ||
|
|
CHAR_CARRIAGE_RETURN === state.character) {
|
|
skipSeparationSpace(state, false, nodeIndent);
|
|
|
|
} else if (SIMPLE_ESCAPE_SEQUENCES[state.character]) {
|
|
state.result += SIMPLE_ESCAPE_SEQUENCES[state.character];
|
|
state.character = state.input.charCodeAt(++state.position);
|
|
|
|
} else if (HEXADECIMAL_ESCAPE_SEQUENCES[state.character]) {
|
|
hexLength = HEXADECIMAL_ESCAPE_SEQUENCES[state.character];
|
|
hexResult = 0;
|
|
|
|
for (hexIndex = 1; hexIndex <= hexLength; hexIndex += 1) {
|
|
hexOffset = (hexLength - hexIndex) * 4;
|
|
state.character = state.input.charCodeAt(++state.position);
|
|
|
|
if (CHAR_DIGIT_ZERO <= state.character && state.character <= CHAR_DIGIT_NINE) {
|
|
hexResult |= (state.character - CHAR_DIGIT_ZERO) << hexOffset;
|
|
|
|
} else if (CHAR_CAPITAL_A <= state.character && state.character <= CHAR_CAPITAL_F) {
|
|
hexResult |= (state.character - CHAR_CAPITAL_A + 10) << hexOffset;
|
|
|
|
} else if (CHAR_SMALL_A <= state.character && state.character <= CHAR_SMALL_F) {
|
|
hexResult |= (state.character - CHAR_SMALL_A + 10) << hexOffset;
|
|
|
|
} else {
|
|
throwError(state, 'expected hexadecimal character');
|
|
}
|
|
}
|
|
|
|
state.result += String.fromCharCode(hexResult);
|
|
state.character = state.input.charCodeAt(++state.position);
|
|
|
|
} else {
|
|
throwError(state, 'unknown escape sequence');
|
|
}
|
|
|
|
captureStart = captureEnd = state.position;
|
|
|
|
} else if (CHAR_LINE_FEED === state.character ||
|
|
CHAR_CARRIAGE_RETURN === state.character) {
|
|
captureSegment(state, captureStart, captureEnd, true);
|
|
writeFoldedLines(state, skipSeparationSpace(state, false, nodeIndent));
|
|
captureStart = captureEnd = state.position;
|
|
state.character = state.input.charCodeAt(state.position);
|
|
|
|
} else if (state.position === state.lineStart && testDocumentSeparator(state)) {
|
|
throwError(state, 'unexpected end of the document within a double quoted scalar');
|
|
|
|
} else {
|
|
state.character = state.input.charCodeAt(++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,
|
|
_tag = state.tag,
|
|
_result,
|
|
following,
|
|
terminator,
|
|
isPair,
|
|
isExplicitPair,
|
|
isMapping,
|
|
keyNode,
|
|
keyTag,
|
|
valueNode;
|
|
|
|
switch (state.character) {
|
|
case CHAR_LEFT_SQUARE_BRACKET:
|
|
terminator = CHAR_RIGHT_SQUARE_BRACKET;
|
|
isMapping = false;
|
|
_result = [];
|
|
break;
|
|
|
|
case CHAR_LEFT_CURLY_BRACKET:
|
|
terminator = CHAR_RIGHT_CURLY_BRACKET;
|
|
isMapping = true;
|
|
_result = {};
|
|
break;
|
|
|
|
default:
|
|
return false;
|
|
}
|
|
|
|
if (null !== state.anchor) {
|
|
state.anchorMap[state.anchor] = _result;
|
|
}
|
|
|
|
state.character = state.input.charCodeAt(++state.position);
|
|
|
|
while (state.position < state.length) {
|
|
skipSeparationSpace(state, true, nodeIndent);
|
|
|
|
if (state.character === terminator) {
|
|
state.character = state.input.charCodeAt(++state.position);
|
|
state.tag = _tag;
|
|
state.kind = isMapping ? 'mapping' : 'sequence';
|
|
state.result = _result;
|
|
return true;
|
|
} else if (!readNext) {
|
|
throwError(state, 'missed comma between flow collection entries');
|
|
}
|
|
|
|
keyTag = keyNode = valueNode = null;
|
|
isPair = isExplicitPair = false;
|
|
|
|
if (CHAR_QUESTION === state.character) {
|
|
following = state.input.charCodeAt(state.position + 1);
|
|
|
|
if (CHAR_SPACE === following ||
|
|
CHAR_TAB === following ||
|
|
CHAR_LINE_FEED === following ||
|
|
CHAR_CARRIAGE_RETURN === following) {
|
|
isPair = isExplicitPair = true;
|
|
state.position += 1;
|
|
state.character = following;
|
|
skipSeparationSpace(state, true, nodeIndent);
|
|
}
|
|
}
|
|
|
|
_line = state.line;
|
|
composeNode(state, nodeIndent, CONTEXT_FLOW_IN, false, true);
|
|
keyTag = state.tag;
|
|
keyNode = state.result;
|
|
skipSeparationSpace(state, true, nodeIndent);
|
|
|
|
if ((isExplicitPair || state.line === _line) && CHAR_COLON === state.character) {
|
|
isPair = true;
|
|
state.character = state.input.charCodeAt(++state.position);
|
|
skipSeparationSpace(state, true, nodeIndent);
|
|
composeNode(state, nodeIndent, CONTEXT_FLOW_IN, false, true);
|
|
valueNode = state.result;
|
|
}
|
|
|
|
if (isMapping) {
|
|
storeMappingPair(state, _result, keyTag, keyNode, valueNode);
|
|
} else if (isPair) {
|
|
_result.push(storeMappingPair(state, null, keyTag, keyNode, valueNode));
|
|
} else {
|
|
_result.push(keyNode);
|
|
}
|
|
|
|
skipSeparationSpace(state, true, nodeIndent);
|
|
|
|
if (CHAR_COMMA === state.character) {
|
|
readNext = true;
|
|
state.character = state.input.charCodeAt(++state.position);
|
|
} else {
|
|
readNext = false;
|
|
}
|
|
}
|
|
|
|
throwError(state, 'unexpected end of the stream within a flow collection');
|
|
}
|
|
|
|
function readBlockScalar(state, nodeIndent) {
|
|
var captureStart,
|
|
folding,
|
|
chomping = CHOMPING_CLIP,
|
|
detectedIndent = false,
|
|
textIndent = nodeIndent,
|
|
emptyLines = 0,
|
|
atMoreIndented = false;
|
|
|
|
switch (state.character) {
|
|
case CHAR_VERTICAL_LINE:
|
|
folding = false;
|
|
break;
|
|
|
|
case CHAR_GREATER_THAN:
|
|
folding = true;
|
|
break;
|
|
|
|
default:
|
|
return false;
|
|
}
|
|
|
|
state.kind = 'scalar';
|
|
state.result = '';
|
|
|
|
while (state.position < state.length) {
|
|
state.character = state.input.charCodeAt(++state.position);
|
|
|
|
if (CHAR_PLUS === state.character || CHAR_MINUS === state.character) {
|
|
if (CHOMPING_CLIP === chomping) {
|
|
chomping = (CHAR_PLUS === state.character) ? CHOMPING_KEEP : CHOMPING_STRIP;
|
|
} else {
|
|
throwError(state, 'repeat of a chomping mode identifier');
|
|
}
|
|
|
|
} else if (CHAR_DIGIT_ZERO <= state.character && state.character <= CHAR_DIGIT_NINE) {
|
|
if (CHAR_DIGIT_ZERO === state.character) {
|
|
throwError(state, 'bad explicit indentation width of a block scalar; it cannot be less than one');
|
|
} else if (!detectedIndent) {
|
|
textIndent = nodeIndent + (state.character - CHAR_DIGIT_ONE);
|
|
detectedIndent = true;
|
|
} else {
|
|
throwError(state, 'repeat of an indentation width identifier');
|
|
}
|
|
|
|
} else {
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (CHAR_SPACE === state.character || CHAR_TAB === state.character) {
|
|
do { state.character = state.input.charCodeAt(++state.position); }
|
|
while (CHAR_SPACE === state.character || CHAR_TAB === state.character);
|
|
|
|
if (CHAR_SHARP === state.character) {
|
|
do { state.character = state.input.charCodeAt(++state.position); }
|
|
while (state.position < state.length &&
|
|
CHAR_LINE_FEED !== state.character &&
|
|
CHAR_CARRIAGE_RETURN !== state.character);
|
|
}
|
|
}
|
|
|
|
while (state.position < state.length) {
|
|
readLineBreak(state);
|
|
state.lineIndent = 0;
|
|
|
|
while ((!detectedIndent || state.lineIndent < textIndent) &&
|
|
(CHAR_SPACE === state.character)) {
|
|
state.lineIndent += 1;
|
|
state.character = state.input.charCodeAt(++state.position);
|
|
}
|
|
|
|
if (!detectedIndent && state.lineIndent > textIndent) {
|
|
textIndent = state.lineIndent;
|
|
}
|
|
|
|
if (CHAR_LINE_FEED === state.character || CHAR_CARRIAGE_RETURN === state.character) {
|
|
emptyLines += 1;
|
|
continue;
|
|
}
|
|
|
|
// End of the scalar.
|
|
if (state.lineIndent < textIndent) {
|
|
|
|
// Perform the chomping.
|
|
switch (chomping) {
|
|
case CHOMPING_KEEP:
|
|
state.result += common.repeat('\n', emptyLines);
|
|
break;
|
|
|
|
case CHOMPING_CLIP:
|
|
if (detectedIndent) { // i.e. only if the scalar is not empty.
|
|
state.result += '\n';
|
|
}
|
|
break;
|
|
}
|
|
|
|
// Break this `while` cycle and go to the funciton's epilogue.
|
|
break;
|
|
}
|
|
|
|
// Folded style: use fancy rules to handle line breaks.
|
|
if (folding) {
|
|
|
|
// Lines starting with white space characters (more-indented lines) are not folded.
|
|
if (CHAR_SPACE === state.character || CHAR_TAB === state.character) {
|
|
atMoreIndented = true;
|
|
state.result += common.repeat('\n', emptyLines + 1);
|
|
|
|
// End of more-indented block.
|
|
} else if (atMoreIndented) {
|
|
atMoreIndented = false;
|
|
state.result += common.repeat('\n', emptyLines + 1);
|
|
|
|
// Just one line break - perceive as the same line.
|
|
} else if (0 === emptyLines) {
|
|
if (detectedIndent) { // i.e. only if we have already read some scalar content.
|
|
state.result += ' ';
|
|
}
|
|
|
|
// Several line breaks - perceive as different lines.
|
|
} else {
|
|
state.result += common.repeat('\n', emptyLines);
|
|
}
|
|
|
|
// Literal style: just add exact number of line breaks between content lines.
|
|
} else {
|
|
|
|
// If current line isn't the first one - count line break from the last content line.
|
|
if (detectedIndent) {
|
|
state.result += common.repeat('\n', emptyLines + 1);
|
|
|
|
// In case of the first content line - count only empty lines.
|
|
} else {
|
|
state.result += common.repeat('\n', emptyLines);
|
|
}
|
|
}
|
|
|
|
detectedIndent = true;
|
|
emptyLines = 0;
|
|
captureStart = state.position;
|
|
|
|
do { state.character = state.input.charCodeAt(++state.position); }
|
|
while (state.position < state.length &&
|
|
CHAR_LINE_FEED !== state.character &&
|
|
CHAR_CARRIAGE_RETURN !== state.character);
|
|
|
|
captureSegment(state, captureStart, state.position, false);
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
function readBlockSequence(state, nodeIndent) {
|
|
var _line,
|
|
_tag = state.tag,
|
|
_result = [],
|
|
following,
|
|
detected = false;
|
|
|
|
if (null !== state.anchor) {
|
|
state.anchorMap[state.anchor] = _result;
|
|
}
|
|
|
|
while (state.position < state.length) {
|
|
if (CHAR_MINUS !== state.character) {
|
|
break;
|
|
}
|
|
|
|
following = state.input.charCodeAt(state.position + 1);
|
|
|
|
if (CHAR_SPACE !== following &&
|
|
CHAR_TAB !== following &&
|
|
CHAR_LINE_FEED !== following &&
|
|
CHAR_CARRIAGE_RETURN !== following) {
|
|
break;
|
|
}
|
|
|
|
detected = true;
|
|
state.position += 1;
|
|
state.character = following;
|
|
|
|
if (skipSeparationSpace(state, true, -1)) {
|
|
if (state.lineIndent <= nodeIndent) {
|
|
_result.push(null);
|
|
continue;
|
|
}
|
|
}
|
|
|
|
_line = state.line;
|
|
composeNode(state, nodeIndent, CONTEXT_BLOCK_IN, false, true);
|
|
_result.push(state.result);
|
|
skipSeparationSpace(state, true, -1);
|
|
|
|
if ((state.line === _line || state.lineIndent > nodeIndent) && state.position < state.length) {
|
|
throwError(state, 'bad indentation of a sequence entry');
|
|
} else if (state.lineIndent < nodeIndent) {
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (detected) {
|
|
state.tag = _tag;
|
|
state.kind = 'sequence';
|
|
state.result = _result;
|
|
return true;
|
|
} else {
|
|
return false;
|
|
}
|
|
}
|
|
|
|
function readBlockMapping(state, nodeIndent) {
|
|
var following,
|
|
allowCompact,
|
|
_line,
|
|
_tag = state.tag,
|
|
_result = {},
|
|
keyTag = null,
|
|
keyNode = null,
|
|
valueNode = null,
|
|
atExplicitKey = false,
|
|
detected = false;
|
|
|
|
if (null !== state.anchor) {
|
|
state.anchorMap[state.anchor] = _result;
|
|
}
|
|
|
|
while (state.position < state.length) {
|
|
following = state.input.charCodeAt(state.position + 1);
|
|
_line = state.line; // Save the current line.
|
|
|
|
//
|
|
// Explicit notation case. There are two separate blocks:
|
|
// first for the key (denoted by "?") and second for the value (denoted by ":")
|
|
//
|
|
if ((CHAR_QUESTION === state.character ||
|
|
CHAR_COLON === state.character) &&
|
|
(CHAR_SPACE === following ||
|
|
CHAR_TAB === following ||
|
|
CHAR_LINE_FEED === following ||
|
|
CHAR_CARRIAGE_RETURN === following)) {
|
|
|
|
if (CHAR_QUESTION === state.character) {
|
|
if (atExplicitKey) {
|
|
storeMappingPair(state, _result, keyTag, keyNode, null);
|
|
keyTag = keyNode = valueNode = null;
|
|
}
|
|
|
|
detected = true;
|
|
atExplicitKey = true;
|
|
allowCompact = true;
|
|
|
|
} else if (atExplicitKey) {
|
|
// i.e. CHAR_COLON === character after the explicit key.
|
|
atExplicitKey = false;
|
|
allowCompact = true;
|
|
|
|
} else {
|
|
throwError(state, 'incomplete explicit mapping pair; a key node is missed');
|
|
}
|
|
|
|
state.position += 1;
|
|
state.character = following;
|
|
|
|
//
|
|
// Implicit notation case. Flow-style node as the key first, then ":", and the value.
|
|
//
|
|
} else if (composeNode(state, nodeIndent, CONTEXT_FLOW_OUT, false, true)) {
|
|
if (state.line === _line) {
|
|
while (CHAR_SPACE === state.character ||
|
|
CHAR_TAB === state.character) {
|
|
state.character = state.input.charCodeAt(++state.position);
|
|
}
|
|
|
|
if (CHAR_COLON === state.character) {
|
|
state.character = state.input.charCodeAt(++state.position);
|
|
|
|
if (CHAR_SPACE !== state.character &&
|
|
CHAR_TAB !== state.character &&
|
|
CHAR_LINE_FEED !== state.character &&
|
|
CHAR_CARRIAGE_RETURN !== state.character) {
|
|
throwError(state, 'a whitespace character is expected after the key-value separator within a block mapping');
|
|
}
|
|
|
|
if (atExplicitKey) {
|
|
storeMappingPair(state, _result, keyTag, keyNode, null);
|
|
keyTag = keyNode = valueNode = null;
|
|
}
|
|
|
|
detected = true;
|
|
atExplicitKey = false;
|
|
allowCompact = false;
|
|
keyTag = state.tag;
|
|
keyNode = state.result;
|
|
|
|
} else if (detected) {
|
|
throwError(state, 'can not read an implicit mapping pair; a colon is missed');
|
|
|
|
} else {
|
|
state.tag = _tag;
|
|
return true; // Keep the result of `composeNode`.
|
|
}
|
|
|
|
} else if (detected) {
|
|
throwError(state, 'can not read a block mapping entry; a multiline key may not be an implicit key');
|
|
|
|
} else {
|
|
state.tag = _tag;
|
|
return true; // Keep the result of `composeNode`.
|
|
}
|
|
|
|
} else {
|
|
break; // Reading is done. Go to the epilogue.
|
|
}
|
|
|
|
//
|
|
// Common reading code for both explicit and implicit notations.
|
|
//
|
|
if (state.line === _line || state.lineIndent > nodeIndent) {
|
|
if (composeNode(state, nodeIndent, CONTEXT_BLOCK_OUT, true, allowCompact)) {
|
|
if (atExplicitKey) {
|
|
keyNode = state.result;
|
|
} else {
|
|
valueNode = state.result;
|
|
}
|
|
}
|
|
|
|
if (!atExplicitKey) {
|
|
storeMappingPair(state, _result, keyTag, keyNode, valueNode);
|
|
keyTag = keyNode = valueNode = null;
|
|
}
|
|
|
|
skipSeparationSpace(state, true, -1);
|
|
}
|
|
|
|
if (state.lineIndent > nodeIndent && state.position < state.length) {
|
|
throwError(state, 'bad indentation of a mapping entry');
|
|
} else if (state.lineIndent < nodeIndent) {
|
|
break;
|
|
}
|
|
}
|
|
|
|
//
|
|
// Epilogue.
|
|
//
|
|
|
|
// Special case: last mapping's node contains only the key in explicit notation.
|
|
if (atExplicitKey) {
|
|
storeMappingPair(state, _result, keyTag, keyNode, null);
|
|
}
|
|
|
|
// Expose the resulting mapping.
|
|
if (detected) {
|
|
state.tag = _tag;
|
|
state.kind = 'mapping';
|
|
state.result = _result;
|
|
}
|
|
|
|
return detected;
|
|
}
|
|
|
|
function readTagProperty(state) {
|
|
var _position,
|
|
isVerbatim = false,
|
|
isNamed = false,
|
|
tagHandle,
|
|
tagName;
|
|
|
|
if (CHAR_EXCLAMATION !== state.character) {
|
|
return false;
|
|
}
|
|
|
|
if (null !== state.tag) {
|
|
throwError(state, 'duplication of a tag property');
|
|
}
|
|
|
|
state.character = state.input.charCodeAt(++state.position);
|
|
|
|
if (CHAR_LESS_THAN === state.character) {
|
|
isVerbatim = true;
|
|
state.character = state.input.charCodeAt(++state.position);
|
|
|
|
} else if (CHAR_EXCLAMATION === state.character) {
|
|
isNamed = true;
|
|
tagHandle = '!!';
|
|
state.character = state.input.charCodeAt(++state.position);
|
|
|
|
} else {
|
|
tagHandle = '!';
|
|
}
|
|
|
|
_position = state.position;
|
|
|
|
if (isVerbatim) {
|
|
do { state.character = state.input.charCodeAt(++state.position); }
|
|
while (state.position < state.length && CHAR_GREATER_THAN !== state.character);
|
|
|
|
if (state.position < state.length) {
|
|
tagName = state.input.slice(_position, state.position);
|
|
state.character = state.input.charCodeAt(++state.position);
|
|
} else {
|
|
throwError(state, 'unexpected end of the stream within a verbatim tag');
|
|
}
|
|
} else {
|
|
while (state.position < state.length &&
|
|
CHAR_SPACE !== state.character &&
|
|
CHAR_TAB !== state.character &&
|
|
CHAR_LINE_FEED !== state.character &&
|
|
CHAR_CARRIAGE_RETURN !== state.character) {
|
|
|
|
if (CHAR_EXCLAMATION === state.character) {
|
|
if (!isNamed) {
|
|
tagHandle = state.input.slice(_position - 1, state.position + 1);
|
|
|
|
if (!PATTERN_TAG_HANDLE.test(tagHandle)) {
|
|
throwError(state, 'named tag handle cannot contain such characters');
|
|
}
|
|
|
|
isNamed = true;
|
|
_position = state.position + 1;
|
|
} else {
|
|
throwError(state, 'tag suffix cannot contain exclamation marks');
|
|
}
|
|
}
|
|
|
|
state.character = state.input.charCodeAt(++state.position);
|
|
}
|
|
|
|
tagName = state.input.slice(_position, state.position);
|
|
|
|
if (PATTERN_FLOW_INDICATORS.test(tagName)) {
|
|
throwError(state, 'tag suffix cannot contain flow indicator characters');
|
|
}
|
|
}
|
|
|
|
if (tagName && !PATTERN_TAG_URI.test(tagName)) {
|
|
throwError(state, 'tag name cannot contain such characters: ' + tagName);
|
|
}
|
|
|
|
if (isVerbatim) {
|
|
state.tag = tagName;
|
|
|
|
} else if (_hasOwnProperty.call(state.tagMap, tagHandle)) {
|
|
state.tag = state.tagMap[tagHandle] + tagName;
|
|
|
|
} else if ('!' === tagHandle) {
|
|
state.tag = '!' + tagName;
|
|
|
|
} else if ('!!' === tagHandle) {
|
|
state.tag = 'tag:yaml.org,2002:' + tagName;
|
|
|
|
} else {
|
|
throwError(state, 'undeclared tag handle "' + tagHandle + '"');
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
function readAnchorProperty(state) {
|
|
var _position;
|
|
|
|
if (CHAR_AMPERSAND !== state.character) {
|
|
return false;
|
|
}
|
|
|
|
if (null !== state.anchor) {
|
|
throwError(state, 'duplication of an anchor property');
|
|
}
|
|
|
|
state.character = state.input.charCodeAt(++state.position);
|
|
_position = state.position;
|
|
|
|
while (state.position < state.length &&
|
|
CHAR_SPACE !== state.character &&
|
|
CHAR_TAB !== state.character &&
|
|
CHAR_LINE_FEED !== state.character &&
|
|
CHAR_CARRIAGE_RETURN !== state.character &&
|
|
CHAR_COMMA !== state.character &&
|
|
CHAR_LEFT_SQUARE_BRACKET !== state.character &&
|
|
CHAR_RIGHT_SQUARE_BRACKET !== state.character &&
|
|
CHAR_LEFT_CURLY_BRACKET !== state.character &&
|
|
CHAR_RIGHT_CURLY_BRACKET !== state.character) {
|
|
state.character = state.input.charCodeAt(++state.position);
|
|
}
|
|
|
|
if (state.position === _position) {
|
|
throwError(state, 'name of an anchor node must contain at least one character');
|
|
}
|
|
|
|
state.anchor = state.input.slice(_position, state.position);
|
|
return true;
|
|
}
|
|
|
|
function readAlias(state) {
|
|
var _position, alias;
|
|
|
|
if (CHAR_ASTERISK !== state.character) {
|
|
return false;
|
|
}
|
|
|
|
state.character = state.input.charCodeAt(++state.position);
|
|
_position = state.position;
|
|
|
|
while (state.position < state.length &&
|
|
CHAR_SPACE !== state.character &&
|
|
CHAR_TAB !== state.character &&
|
|
CHAR_LINE_FEED !== state.character &&
|
|
CHAR_CARRIAGE_RETURN !== state.character &&
|
|
CHAR_COMMA !== state.character &&
|
|
CHAR_LEFT_SQUARE_BRACKET !== state.character &&
|
|
CHAR_RIGHT_SQUARE_BRACKET !== state.character &&
|
|
CHAR_LEFT_CURLY_BRACKET !== state.character &&
|
|
CHAR_RIGHT_CURLY_BRACKET !== state.character) {
|
|
state.character = state.input.charCodeAt(++state.position);
|
|
}
|
|
|
|
if (state.position === _position) {
|
|
throwError(state, 'name of an alias node must contain at least one character');
|
|
}
|
|
|
|
alias = state.input.slice(_position, state.position);
|
|
|
|
if (!state.anchorMap.hasOwnProperty(alias)) {
|
|
throwError(state, 'unidentified alias "' + alias + '"');
|
|
}
|
|
|
|
state.result = state.anchorMap[alias];
|
|
skipSeparationSpace(state, true, -1);
|
|
return true;
|
|
}
|
|
|
|
function composeNode(state, parentIndent, nodeContext, allowToSeek, allowCompact) {
|
|
var allowBlockStyles,
|
|
allowBlockScalars,
|
|
allowBlockCollections,
|
|
atNewLine = false,
|
|
isIndented = true,
|
|
hasContent = false,
|
|
typeIndex,
|
|
typeQuantity,
|
|
type,
|
|
flowIndent,
|
|
blockIndent,
|
|
_result;
|
|
|
|
state.tag = null;
|
|
state.anchor = null;
|
|
state.kind = null;
|
|
state.result = null;
|
|
|
|
allowBlockStyles = allowBlockScalars = allowBlockCollections =
|
|
CONTEXT_BLOCK_OUT === nodeContext ||
|
|
CONTEXT_BLOCK_IN === nodeContext;
|
|
|
|
if (allowToSeek) {
|
|
if (skipSeparationSpace(state, true, -1)) {
|
|
atNewLine = true;
|
|
|
|
if (state.lineIndent === parentIndent) {
|
|
isIndented = false;
|
|
|
|
} else if (state.lineIndent > parentIndent) {
|
|
isIndented = true;
|
|
|
|
} else {
|
|
return false;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (isIndented) {
|
|
while (readTagProperty(state) || readAnchorProperty(state)) {
|
|
if (skipSeparationSpace(state, true, -1)) {
|
|
atNewLine = true;
|
|
|
|
if (state.lineIndent > parentIndent) {
|
|
isIndented = true;
|
|
allowBlockCollections = allowBlockStyles;
|
|
|
|
} else if (state.lineIndent === parentIndent) {
|
|
isIndented = false;
|
|
allowBlockCollections = allowBlockStyles;
|
|
|
|
} else {
|
|
return true;
|
|
}
|
|
} else {
|
|
allowBlockCollections = false;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (allowBlockCollections) {
|
|
allowBlockCollections = atNewLine || allowCompact;
|
|
}
|
|
|
|
if (isIndented || CONTEXT_BLOCK_OUT === nodeContext) {
|
|
if (CONTEXT_FLOW_IN === nodeContext || CONTEXT_FLOW_OUT === nodeContext) {
|
|
flowIndent = parentIndent;
|
|
} else {
|
|
flowIndent = parentIndent + 1;
|
|
}
|
|
|
|
blockIndent = state.position - state.lineStart;
|
|
|
|
if (isIndented) {
|
|
if (allowBlockCollections &&
|
|
(readBlockSequence(state, blockIndent) ||
|
|
readBlockMapping(state, blockIndent)) ||
|
|
readFlowCollection(state, flowIndent)) {
|
|
hasContent = true;
|
|
} else {
|
|
if ((allowBlockScalars && readBlockScalar(state, flowIndent)) ||
|
|
readSingleQuotedScalar(state, flowIndent) ||
|
|
readDoubleQuotedScalar(state, flowIndent)) {
|
|
hasContent = true;
|
|
|
|
} else if (readAlias(state)) {
|
|
hasContent = true;
|
|
|
|
if (null !== state.tag || null !== state.anchor) {
|
|
throwError(state, 'alias node should not have any properties');
|
|
}
|
|
|
|
} else if (readPlainScalar(state, flowIndent, CONTEXT_FLOW_IN === nodeContext)) {
|
|
hasContent = true;
|
|
|
|
if (null === state.tag) {
|
|
state.tag = '?';
|
|
}
|
|
}
|
|
|
|
if (null !== state.anchor) {
|
|
state.anchorMap[state.anchor] = state.result;
|
|
}
|
|
}
|
|
} else {
|
|
hasContent = allowBlockCollections && readBlockSequence(state, blockIndent);
|
|
}
|
|
}
|
|
|
|
if (null !== state.tag && '!' !== state.tag) {
|
|
if ('?' === state.tag) {
|
|
for (typeIndex = 0, typeQuantity = state.implicitTypes.length;
|
|
typeIndex < typeQuantity;
|
|
typeIndex += 1) {
|
|
type = state.implicitTypes[typeIndex];
|
|
|
|
// Implicit resolving is not allowed for non-scalar types, and '?'
|
|
// non-specific tag is only assigned to plain scalars. So, it isn't
|
|
// needed to check for 'kind' conformity.
|
|
|
|
if (type.loadResolver && type.loadResolver(state)) { // `state.result` updated in resolver if matched
|
|
state.tag = type.tag;
|
|
break;
|
|
}
|
|
|
|
}
|
|
} else if (_hasOwnProperty.call(state.typeMap, state.tag)) {
|
|
type = state.typeMap[state.tag];
|
|
|
|
if (null !== state.result && type.loadKind !== state.kind) {
|
|
throwError(state, 'unacceptable node kind for !<' + state.tag + '> tag; it should be "' + type.loadKind + '", not "' + state.kind + '"');
|
|
}
|
|
|
|
if (type.loadResolver && !type.loadResolver(state)) { // `state.result` updated in resolver if matched
|
|
throwError(state, 'cannot resolve a node with !<' + state.tag + '> explicit tag');
|
|
}
|
|
} else {
|
|
throwWarning(state, 'unknown tag !<' + state.tag + '>');
|
|
}
|
|
}
|
|
|
|
return null !== state.tag || null !== state.anchor || hasContent;
|
|
}
|
|
|
|
function readDocument(state, iterator) {
|
|
var documentStart = state.position,
|
|
_position,
|
|
directiveName,
|
|
directiveArgs,
|
|
hasDirectives = false;
|
|
|
|
state.version = null;
|
|
state.checkLineBreaks = state.legacy;
|
|
state.tagMap = {};
|
|
state.anchorMap = {};
|
|
|
|
while (state.position < state.length) {
|
|
skipSeparationSpace(state, true, -1);
|
|
|
|
if (state.lineIndent > 0 || CHAR_PERCENT !== state.character) {
|
|
break;
|
|
}
|
|
|
|
hasDirectives = true;
|
|
state.character = state.input.charCodeAt(++state.position);
|
|
_position = state.position;
|
|
|
|
while (state.position < state.length &&
|
|
CHAR_SPACE !== state.character &&
|
|
CHAR_TAB !== state.character &&
|
|
CHAR_LINE_FEED !== state.character &&
|
|
CHAR_CARRIAGE_RETURN !== state.character) {
|
|
state.character = state.input.charCodeAt(++state.position);
|
|
}
|
|
|
|
directiveName = state.input.slice(_position, state.position);
|
|
directiveArgs = [];
|
|
|
|
if (directiveName.length < 1) {
|
|
throwError(state, 'directive name must not be less than one character in length');
|
|
}
|
|
|
|
while (state.position < state.length) {
|
|
while (CHAR_SPACE === state.character || CHAR_TAB === state.character) {
|
|
state.character = state.input.charCodeAt(++state.position);
|
|
}
|
|
|
|
if (CHAR_SHARP === state.character) {
|
|
do { state.character = state.input.charCodeAt(++state.position); }
|
|
while (state.position < state.length &&
|
|
CHAR_LINE_FEED !== state.character &&
|
|
CHAR_CARRIAGE_RETURN !== state.character);
|
|
break;
|
|
}
|
|
|
|
if (CHAR_LINE_FEED === state.character || CHAR_CARRIAGE_RETURN === state.character) {
|
|
break;
|
|
}
|
|
|
|
_position = state.position;
|
|
|
|
while (state.position < state.length &&
|
|
CHAR_SPACE !== state.character &&
|
|
CHAR_TAB !== state.character &&
|
|
CHAR_LINE_FEED !== state.character &&
|
|
CHAR_CARRIAGE_RETURN !== state.character) {
|
|
state.character = state.input.charCodeAt(++state.position);
|
|
}
|
|
|
|
directiveArgs.push(state.input.slice(_position, state.position));
|
|
}
|
|
|
|
if (state.position < state.length) {
|
|
readLineBreak(state);
|
|
}
|
|
|
|
if (_hasOwnProperty.call(directiveHandlers, directiveName)) {
|
|
directiveHandlers[directiveName](state, directiveName, directiveArgs);
|
|
} else {
|
|
throwWarning(state, 'unknown document directive "' + directiveName + '"');
|
|
}
|
|
}
|
|
|
|
skipSeparationSpace(state, true, -1);
|
|
|
|
if (0 === state.lineIndent &&
|
|
CHAR_MINUS === state.character &&
|
|
CHAR_MINUS === state.input.charCodeAt(state.position + 1) &&
|
|
CHAR_MINUS === state.input.charCodeAt(state.position + 2)) {
|
|
state.position += 3;
|
|
state.character = state.input.charCodeAt(state.position);
|
|
skipSeparationSpace(state, true, -1);
|
|
|
|
} else if (hasDirectives) {
|
|
throwError(state, 'directives end mark is expected');
|
|
}
|
|
|
|
composeNode(state, state.lineIndent - 1, CONTEXT_BLOCK_OUT, false, true);
|
|
skipSeparationSpace(state, true, -1);
|
|
|
|
if (state.checkLineBreaks &&
|
|
PATTERN_NON_ASCII_LINE_BREAKS.test(state.input.slice(documentStart, state.position))) {
|
|
throwWarning(state, 'non-ASCII line breaks are interpreted as content');
|
|
}
|
|
|
|
iterator(state.result);
|
|
|
|
if (state.position === state.lineStart && testDocumentSeparator(state)) {
|
|
if (CHAR_DOT === state.character) {
|
|
state.position += 3;
|
|
state.character = state.input.charCodeAt(state.position);
|
|
skipSeparationSpace(state, true, -1);
|
|
}
|
|
return;
|
|
}
|
|
|
|
if (state.position < state.length) {
|
|
throwError(state, 'end of the stream or a document separator is expected');
|
|
} else {
|
|
return;
|
|
}
|
|
}
|
|
|
|
|
|
|
|
function loadAll(input, iterator, options) {
|
|
options = options || {};
|
|
|
|
var state = new State(input, options);
|
|
|
|
if (PATTERN_NON_PRINTABLE.test(state.input)) {
|
|
throwError(state, 'the stream contains non-printable characters');
|
|
}
|
|
|
|
while (CHAR_SPACE === state.character) {
|
|
state.lineIndent += 1;
|
|
state.character = state.input.charCodeAt(++state.position);
|
|
}
|
|
|
|
while (state.position < state.length) {
|
|
readDocument(state, iterator);
|
|
}
|
|
}
|
|
|
|
|
|
function load(input, options) {
|
|
var result = null, received = false;
|
|
|
|
function iterator(data) {
|
|
if (!received) {
|
|
result = data;
|
|
received = true;
|
|
} else {
|
|
throw new YAMLException('expected a single document in the stream, but found more');
|
|
}
|
|
}
|
|
|
|
loadAll(input, iterator, options);
|
|
|
|
return result;
|
|
}
|
|
|
|
|
|
function safeLoadAll(input, output, options) {
|
|
loadAll(input, output, common.extend({ schema: DEFAULT_SAFE_SCHEMA }, options));
|
|
}
|
|
|
|
|
|
function safeLoad(input, options) {
|
|
return load(input, common.extend({ schema: DEFAULT_SAFE_SCHEMA }, options));
|
|
}
|
|
|
|
|
|
module.exports.loadAll = loadAll;
|
|
module.exports.load = load;
|
|
module.exports.safeLoadAll = safeLoadAll;
|
|
module.exports.safeLoad = safeLoad;
|