/** * @copyright (c) 2016, Philipp Thürwächter & Pattrick Hüper * @copyright (c) 2007-present, Stephen Colebourne & Michael Nascimento Santos * @license BSD-3-Clause (see LICENSE in the root directory of this source tree) */ import { assert, requireNonNull, requireInstance } from '../assert'; import { IllegalArgumentException, IllegalStateException } from '../errors'; import { MathUtil } from '../MathUtil'; import { LocalDate } from '../LocalDate'; import { LocalDateTime } from '../LocalDateTime'; import { ZoneOffset } from '../ZoneOffset'; import { ChronoLocalDate } from '../chrono/ChronoLocalDate'; import { ChronoField } from '../temporal/ChronoField'; import { IsoFields } from '../temporal/IsoFields'; import { TemporalQueries } from '../temporal/TemporalQueries'; import { DateTimeFormatter } from './DateTimeFormatter'; import { DecimalStyle } from './DecimalStyle'; import { SignStyle } from './SignStyle'; import { TextStyle } from './TextStyle'; import { ResolverStyle } from './ResolverStyle'; import { CharLiteralPrinterParser } from './parser/CharLiteralPrinterParser'; import { CompositePrinterParser } from './parser/CompositePrinterParser'; import { FractionPrinterParser } from './parser/FractionPrinterParser'; import { NumberPrinterParser, ReducedPrinterParser } from './parser/NumberPrinterParser'; import { OffsetIdPrinterParser } from './parser/OffsetIdPrinterParser'; import { PadPrinterParserDecorator } from './parser/PadPrinterParserDecorator'; import { SettingsParser } from './parser/SettingsParser'; import { StringLiteralPrinterParser } from './parser/StringLiteralPrinterParser'; import { ZoneIdPrinterParser } from './parser/ZoneIdPrinterParser'; const MAX_WIDTH = 15; // can't parse all numbers with more then 15 digits in javascript export class DateTimeFormatterBuilder { /** * Constructs a new instance of the builder. */ constructor() { /** * The currently active builder, used by the outermost builder. */ this._active = this; /** * The parent builder, null for the outermost builder. */ this._parent = null; /** * The list of printers that will be used. */ this._printerParsers = []; /** * Whether this builder produces an optional formatter. */ this._optional = false; /** * The width to pad the next field to. */ this._padNextWidth = 0; /** * The character to pad the next field with. */ this._padNextChar = null; /** * The index of the last variable width value parser. */ this._valueParserIndex = -1; } /** * Private static factory, replaces private threeten constructor * Returns a new instance of the builder. * * @param {DateTimeFormatterBuilder} parent the parent builder, not null * @param {boolean} optional whether the formatter is optional, not null * @return {DateTimeFormatterBuilder} new instance */ static _of(parent, optional){ requireNonNull(parent, 'parent'); requireNonNull(optional, 'optional'); const dtFormatterBuilder = new DateTimeFormatterBuilder(); dtFormatterBuilder._parent = parent; dtFormatterBuilder._optional = optional; return dtFormatterBuilder; } /** * Changes the parse style to be case sensitive for the remainder of the formatter. * * Parsing can be case sensitive or insensitive - by default it is case sensitive. * This method allows the case sensitivity setting of parsing to be changed. * * Calling this method changes the state of the builder such that all * subsequent builder method calls will parse text in case sensitive mode. * See {@link parseCaseInsensitive} for the opposite setting. * The parse case sensitive/insensitive methods may be called at any point * in the builder, thus the parser can swap between case parsing modes * multiple times during the parse. * * Since the default is case sensitive, this method should only be used after * a previous call to {@link parseCaseInsensitive}. * * @return {DateTimeFormatterBuilder} this, for chaining, not null */ parseCaseSensitive() { this._appendInternalPrinterParser(SettingsParser.SENSITIVE); return this; } /** * Changes the parse style to be case insensitive for the remainder of the formatter. * * Parsing can be case sensitive or insensitive - by default it is case sensitive. * This method allows the case sensitivity setting of parsing to be changed. * * Calling this method changes the state of the builder such that all * subsequent builder method calls will parse text in case sensitive mode. * See {@link parseCaseSensitive} for the opposite setting. * The parse case sensitive/insensitive methods may be called at any point * in the builder, thus the parser can swap between case parsing modes * multiple times during the parse. * * @return {DateTimeFormatterBuilder} this, for chaining, not null */ parseCaseInsensitive() { this._appendInternalPrinterParser(SettingsParser.INSENSITIVE); return this; } //----------------------------------------------------------------------- /** * Changes the parse style to be strict for the remainder of the formatter. * * Parsing can be strict or lenient - by default its strict. * This controls the degree of flexibility in matching the text and sign styles. * * When used, this method changes the parsing to be strict from this point onwards. * As strict is the default, this is normally only needed after calling {@link parseLenient}. * The change will remain in force until the end of the formatter that is eventually * constructed or until {@link parseLenient} is called. * * @return {DateTimeFormatterBuilder} this, for chaining, not null */ parseStrict() { this._appendInternalPrinterParser(SettingsParser.STRICT); return this; } /** * Changes the parse style to be lenient for the remainder of the formatter. * Note that case sensitivity is set separately to this method. * * Parsing can be strict or lenient - by default its strict. * This controls the degree of flexibility in matching the text and sign styles. * Applications calling this method should typically also call {@link parseCaseInsensitive}. * * When used, this method changes the parsing to be strict from this point onwards. * The change will remain in force until the end of the formatter that is eventually * constructed or until {@link parseStrict} is called. * * @return {DateTimeFormatterBuilder} this, for chaining, not null */ parseLenient() { this._appendInternalPrinterParser(SettingsParser.LENIENT); return this; } /** * Appends a default value for a field to the formatter for use in parsing. *

* This appends an instruction to the builder to inject a default value * into the parsed result. This is especially useful in conjunction with * optional parts of the formatter. *

* For example, consider a formatter that parses the year, followed by * an optional month, with a further optional day-of-month. Using such a * formatter would require the calling code to check whether a full date, * year-month or just a year had been parsed. This method can be used to * default the month and day-of-month to a sensible value, such as the * first of the month, allowing the calling code to always get a date. *

* During formatting, this method has no effect. *

* During parsing, the current state of the parse is inspected. * If the specified field has no associated value, because it has not been * parsed successfully at that point, then the specified value is injected * into the parse result. Injection is immediate, thus the field-value pair * will be visible to any subsequent elements in the formatter. * As such, this method is normally called at the end of the builder. * * @param {TemporalField} field the field to default the value of, not null * @param {number} value the value to default the field to * @return {DateTimeFormatterBuilder} this, for chaining, not null */ parseDefaulting(field, value) { requireNonNull(field); this._appendInternal(new DefaultingParser(field, value)); return this; } /** * appendValue function overloading */ appendValue(){ if(arguments.length === 1){ return this._appendValue1.apply(this, arguments); } else if(arguments.length === 2){ return this._appendValue2.apply(this, arguments); } else { return this._appendValue4.apply(this, arguments); } } /** * Appends the value of a date-time field to the formatter using a normal * output style. * * The value of the field will be output during a print. * If the value cannot be obtained then an exception will be thrown. * * The value will be printed as per the normal print of an integer value. * Only negative numbers will be signed. No padding will be added. * * The parser for a variable width value such as this normally behaves greedily, * requiring one digit, but accepting as many digits as possible. * This behavior can be affected by 'adjacent value parsing'. * See {@link appendValue} for full details. * * @param field the field to append, not null * @return {DateTimeFormatterBuilder} this, for chaining, not null */ _appendValue1(field) { requireNonNull(field); this._appendValuePrinterParser(new NumberPrinterParser(field, 1, MAX_WIDTH, SignStyle.NORMAL)); return this; } /** * Appends the value of a date-time field to the formatter using a fixed * width, zero-padded approach. * * The value of the field will be output during a print. * If the value cannot be obtained then an exception will be thrown. * * The value will be zero-padded on the left. If the size of the value * means that it cannot be printed within the width then an exception is thrown. * If the value of the field is negative then an exception is thrown during printing. * * This method supports a special technique of parsing known as 'adjacent value parsing'. * This technique solves the problem where a variable length value is followed by one or more * fixed length values. The standard parser is greedy, and thus it would normally * steal the digits that are needed by the fixed width value parsers that follow the * variable width one. * * No action is required to initiate 'adjacent value parsing'. * When a call to {@link appendValue} with a variable width is made, the builder * enters adjacent value parsing setup mode. If the immediately subsequent method * call or calls on the same builder are to this method, then the parser will reserve * space so that the fixed width values can be parsed. * * For example, consider `builder.appendValue(YEAR).appendValue(MONTH_OF_YEAR, 2)`. * The year is a variable width parse of between 1 and 19 digits. * The month is a fixed width parse of 2 digits. * Because these were appended to the same builder immediately after one another, * the year parser will reserve two digits for the month to parse. * Thus, the text '201106' will correctly parse to a year of 2011 and a month of 6. * Without adjacent value parsing, the year would greedily parse all six digits and leave * nothing for the month. * * Adjacent value parsing applies to each set of fixed width not-negative values in the parser * that immediately follow any kind of variable width value. * Calling any other append method will end the setup of adjacent value parsing. * Thus, in the unlikely event that you need to avoid adjacent value parsing behavior, * simply add the `appendValue` to another {@link DateTimeFormatterBuilder} * and add that to this builder. * * If adjacent parsing is active, then parsing must match exactly the specified * number of digits in both strict and lenient modes. * In addition, no positive or negative sign is permitted. * * @param field the field to append, not null * @param width the width of the printed field, from 1 to 19 * @return this, for chaining, not null * @throws IllegalArgumentException if the width is invalid */ _appendValue2(field, width) { requireNonNull(field); if (width < 1 || width > MAX_WIDTH) { throw new IllegalArgumentException(`The width must be from 1 to ${MAX_WIDTH} inclusive but was ${width}`); } const pp = new NumberPrinterParser(field, width, width, SignStyle.NOT_NEGATIVE); this._appendValuePrinterParser(pp); return this; } /** * Appends the value of a date-time field to the formatter providing full * control over printing. * * The value of the field will be output during a print. * If the value cannot be obtained then an exception will be thrown. * * This method provides full control of the numeric formatting, including * zero-padding and the positive/negative sign. * * The parser for a variable width value such as this normally behaves greedily, * accepting as many digits as possible. * This behavior can be affected by 'adjacent value parsing'. * See {@link appendValue} for full details. * * In strict parsing mode, the minimum number of parsed digits is `minWidth`. * In lenient parsing mode, the minimum number of parsed digits is one. * * If this method is invoked with equal minimum and maximum widths and a sign style of * `NOT_NEGATIVE` then it delegates to `appendValue(TemporalField, int)`. * In this scenario, the printing and parsing behavior described there occur. * * @param field the field to append, not null * @param minWidth the minimum field width of the printed field, from 1 to 19 * @param maxWidth the maximum field width of the printed field, from 1 to 19 * @param signStyle the positive/negative output style, not null * @return {DateTimeFormatterBuilder} this, for chaining, not null * @throws IllegalArgumentException if the widths are invalid */ _appendValue4(field, minWidth, maxWidth, signStyle) { requireNonNull(field); requireNonNull(signStyle); if (minWidth === maxWidth && signStyle === SignStyle.NOT_NEGATIVE) { return this._appendValue2(field, maxWidth); } if (minWidth < 1 || minWidth > MAX_WIDTH) { throw new IllegalArgumentException(`The minimum width must be from 1 to ${MAX_WIDTH} inclusive but was ${minWidth}`); } if (maxWidth < 1 || maxWidth > MAX_WIDTH) { throw new IllegalArgumentException(`The minimum width must be from 1 to ${MAX_WIDTH} inclusive but was ${maxWidth}`); } if (maxWidth < minWidth) { throw new IllegalArgumentException(`The maximum width must exceed or equal the minimum width but ${maxWidth} < ${minWidth}`); } const pp = new NumberPrinterParser(field, minWidth, maxWidth, signStyle); this._appendValuePrinterParser(pp); return this; } /** * appendValueReduced function overloading */ appendValueReduced() { if (arguments.length === 4 && arguments[3] instanceof ChronoLocalDate) { return this._appendValueReducedFieldWidthMaxWidthBaseDate.apply(this, arguments); } else { return this._appendValueReducedFieldWidthMaxWidthBaseValue.apply(this, arguments); } } /** * Appends the reduced value of a date-time field to the formatter. * * Since fields such as year vary by chronology, it is recommended to use the * {@link appendValueReduced} date} * variant of this method in most cases. This variant is suitable for * simple fields or working with only the ISO chronology. * * For formatting, the `width` and `maxWidth` are used to * determine the number of characters to format. * If they are equal then the format is fixed width. * If the value of the field is within the range of the `baseValue` using * `width` characters then the reduced value is formatted otherwise the value is * truncated to fit `maxWidth`. * The rightmost characters are output to match the width, left padding with zero. * * For strict parsing, the number of characters allowed by `width` to `maxWidth` are parsed. * For lenient parsing, the number of characters must be at least 1 and less than 10. * If the number of digits parsed is equal to `width` and the value is positive, * the value of the field is computed to be the first number greater than * or equal to the `baseValue` with the same least significant characters, * otherwise the value parsed is the field value. * This allows a reduced value to be entered for values in range of the baseValue * and width and absolute values can be entered for values outside the range. * * For example, a base value of `1980` and a width of `2` will have * valid values from `1980` to `2079`. * During parsing, the text `"12"` will result in the value `2012` as that * is the value within the range where the last two characters are "12". * By contrast, parsing the text `"1915"` will result in the value `1915`. * * @param {TemporalField} field the field to append, not null * @param {number} width the field width of the printed and parsed field, from 1 to 10 * @param {number} maxWidth the maximum field width of the printed field, from 1 to 10 * @param {number} baseValue the base value of the range of valid values * @return {DateTimeFormatterBuilder} this, for chaining, not null * @throws IllegalArgumentException if the width or base value is invalid */ _appendValueReducedFieldWidthMaxWidthBaseValue(field, width, maxWidth, baseValue) { requireNonNull(field, 'field'); const pp = new ReducedPrinterParser(field, width, maxWidth, baseValue, null); this._appendValuePrinterParser(pp); return this; } /** * Appends the reduced value of a date-time field to the formatter. * * This is typically used for formatting and parsing a two digit year. * * The base date is used to calculate the full value during parsing. * For example, if the base date is 1950-01-01 then parsed values for * a two digit year parse will be in the range 1950-01-01 to 2049-12-31. * Only the year would be extracted from the date, thus a base date of * 1950-08-25 would also parse to the range 1950-01-01 to 2049-12-31. * This behavior is necessary to support fields such as week-based-year * or other calendar systems where the parsed value does not align with * standard ISO years. * * The exact behavior is as follows. Parse the full set of fields and * determine the effective chronology using the last chronology if * it appears more than once. Then convert the base date to the * effective chronology. Then extract the specified field from the * chronology-specific base date and use it to determine the * `baseValue` used below. * * For formatting, the `width` and `maxWidth` are used to * determine the number of characters to format. * If they are equal then the format is fixed width. * If the value of the field is within the range of the `baseValue` using * `width` characters then the reduced value is formatted otherwise the value is * truncated to fit `maxWidth`. * The rightmost characters are output to match the width, left padding with zero. * * For strict parsing, the number of characters allowed by `width` to `maxWidth` are parsed. * For lenient parsing, the number of characters must be at least 1 and less than 10. * If the number of digits parsed is equal to `width` and the value is positive, * the value of the field is computed to be the first number greater than * or equal to the `baseValue` with the same least significant characters, * otherwise the value parsed is the field value. * This allows a reduced value to be entered for values in range of the baseValue * and width and absolute values can be entered for values outside the range. * * For example, a base value of `1980` and a width of `2` will have * valid values from `1980` to `2079`. * During parsing, the text `"12"` will result in the value `2012` as that * is the value within the range where the last two characters are "12". * By contrast, parsing the text `"1915"` will result in the value `1915`. * * @param {TemporalField} field the field to append, not null * @param {number} width the field width of the printed and parsed field, from 1 to 10 * @param {number} maxWidth the maximum field width of the printed field, from 1 to 10 * @param {ChronoLocalDate} baseDate the base date used to calculate the base value for the range * of valid values in the parsed chronology, not null * @return {DateTimeFormatterBuilder} this, for chaining, not null * @throws IllegalArgumentException if the width or base value is invalid */ _appendValueReducedFieldWidthMaxWidthBaseDate(field, width, maxWidth, baseDate) { requireNonNull(field, 'field'); requireNonNull(baseDate, 'baseDate'); requireInstance(baseDate, ChronoLocalDate, 'baseDate'); const pp = new ReducedPrinterParser(field, width, maxWidth, 0, baseDate); this._appendValuePrinterParser(pp); return this; } /** * Appends a fixed width printer-parser. * * @param pp the printer-parser, not null * @return {DateTimeFormatterBuilder} this, for chaining, not null */ _appendValuePrinterParser(pp) { assert(pp != null); if (this._active._valueParserIndex >= 0 && this._active._printerParsers[this._active._valueParserIndex] instanceof NumberPrinterParser) { const activeValueParser = this._active._valueParserIndex; // adjacent parsing mode, update setting in previous parsers let basePP = this._active._printerParsers[activeValueParser]; if (pp.minWidth() === pp.maxWidth() && pp.signStyle() === SignStyle.NOT_NEGATIVE) { // Append the width to the subsequentWidth of the active parser basePP = basePP.withSubsequentWidth(pp.maxWidth()); // Append the new parser as a fixed width this._appendInternal(pp.withFixedWidth()); // Retain the previous active parser this._active._valueParserIndex = activeValueParser; } else { // Modify the active parser to be fixed width basePP = basePP.withFixedWidth(); // The new parser becomes the mew active parser this._active._valueParserIndex = this._appendInternal(pp); } // Replace the modified parser with the updated one this._active._printerParsers[activeValueParser] = basePP; } else { // The new Parser becomes the active parser this._active._valueParserIndex = this._appendInternal(pp); } return this; } //----------------------------------------------------------------------- /** * Appends the fractional value of a date-time field to the formatter. * * The fractional value of the field will be output including the * preceding decimal point. The preceding value is not output. * For example, the second-of-minute value of 15 would be output as `.25`. * * The width of the printed fraction can be controlled. Setting the * minimum width to zero will cause no output to be generated. * The printed fraction will have the minimum width necessary between * the minimum and maximum widths - trailing zeroes are omitted. * No rounding occurs due to the maximum width - digits are simply dropped. * * When parsing in strict mode, the number of parsed digits must be between * the minimum and maximum width. When parsing in lenient mode, the minimum * width is considered to be zero and the maximum is nine. * * If the value cannot be obtained then an exception will be thrown. * If the value is negative an exception will be thrown. * If the field does not have a fixed set of valid values then an * exception will be thrown. * If the field value in the date-time to be printed is invalid it * cannot be printed and an exception will be thrown. * * @param {TemporalField} field the field to append, not null * @param {Number} minWidth the minimum width of the field excluding the decimal point, from 0 to 9 * @param {Number} maxWidth the maximum width of the field excluding the decimal point, from 1 to 9 * @param {boolean} decimalPoint whether to output the localized decimal point symbol * @return {DateTimeFormatterBuilder} this, for chaining, not null * @throws IllegalArgumentException if the field has a variable set of valid values or * either width is invalid */ appendFraction(field, minWidth, maxWidth, decimalPoint) { this._appendInternal(new FractionPrinterParser(field, minWidth, maxWidth, decimalPoint)); return this; } /** * Appends an instant using ISO-8601 to the formatter with control over * the number of fractional digits. * * Instants have a fixed output format, although this method provides some * control over the fractional digits. They are converted to a date-time * with a zone-offset of UTC and printed using the standard ISO-8601 format. * The localized decimal style is not used. * * The {@link this.fractionalDigits} parameter allows the output of the fractional * second to be controlled. Specifying zero will cause no fractional digits * to be output. From 1 to 9 will output an increasing number of digits, using * zero right-padding if necessary. The special value -1 is used to output as * many digits as necessary to avoid any trailing zeroes. * * When parsing in strict mode, the number of parsed digits must match the * fractional digits. When parsing in lenient mode, any number of fractional * digits from zero to nine are accepted. * * The instant is obtained using {@link ChronoField#INSTANT_SECONDS} * and optionally (@code NANO_OF_SECOND). The value of {@link INSTANT_SECONDS} * may be outside the maximum range of {@link LocalDateTime}. * * The {@link ResolverStyle} has no effect on instant parsing. * The end-of-day time of '24:00' is handled as midnight at the start of the following day. * The leap-second time of '23:59:59' is handled to some degree, see * {@link DateTimeFormatter#parsedLeapSecond} for full details. * * An alternative to this method is to format/parse the instant as a single * epoch-seconds value. That is achieved using `appendValue(INSTANT_SECONDS)`. * * @param {number} [fractionalDigits=-2] - the number of fractional second digits to format with, * from 0 to 9, or -1 to use as many digits as necessary * @return {DateTimeFormatterBuilder} this, for chaining, not null */ appendInstant(fractionalDigits=-2) { if (fractionalDigits < -2 || fractionalDigits > 9) { throw new IllegalArgumentException(`Invalid fractional digits: ${fractionalDigits}`); } this._appendInternal(new InstantPrinterParser(fractionalDigits)); return this; } /** * Appends the zone offset, such as '+01:00', to the formatter. * * This appends an instruction to print/parse the offset ID to the builder. * This is equivalent to calling `appendOffset("HH:MM:ss", "Z")`. * * @return {DateTimeFormatterBuilder} this, for chaining, not null */ appendOffsetId() { this._appendInternal(OffsetIdPrinterParser.INSTANCE_ID); return this; } /** * Appends the zone offset, such as '+01:00', to the formatter. * * This appends an instruction to print/parse the offset ID to the builder. * * During printing, the offset is obtained using a mechanism equivalent * to querying the temporal with {@link TemporalQueries#offset}. * It will be printed using the format defined below. * If the offset cannot be obtained then an exception is thrown unless the * section of the formatter is optional. * * During parsing, the offset is parsed using the format defined below. * If the offset cannot be parsed then an exception is thrown unless the * section of the formatter is optional. * * The format of the offset is controlled by a pattern which must be one * of the following: * * * `+HH` - hour only, ignoring minute and second * * `+HHmm` - hour, with minute if non-zero, ignoring second, no colon * * `+HH:mm` - hour, with minute if non-zero, ignoring second, with colon * * `+HHMM` - hour and minute, ignoring second, no colon * * `+HH:MM` - hour and minute, ignoring second, with colon * * `+HHMMss` - hour and minute, with second if non-zero, no colon * * `+HH:MM:ss` - hour and minute, with second if non-zero, with colon * * `+HHMMSS` - hour, minute and second, no colon * * `+HH:MM:SS` - hour, minute and second, with colon * * The "no offset" text controls what text is printed when the total amount of * the offset fields to be output is zero. * Example values would be 'Z', '+00:00', 'UTC' or 'GMT'. * Three formats are accepted for parsing UTC - the "no offset" text, and the * plus and minus versions of zero defined by the pattern. * * @param {String} pattern the pattern to use, not null * @param {String} noOffsetText the text to use when the offset is zero, not null * @return {DateTimeFormatterBuilder} this, for chaining, not null */ appendOffset(pattern, noOffsetText) { this._appendInternalPrinterParser(new OffsetIdPrinterParser(noOffsetText, pattern)); return this; } /** * Appends the time-zone ID, such as 'Europe/Paris' or '+02:00', to the formatter. * * This appends an instruction to print/parse the zone ID to the builder. * The zone ID is obtained in a strict manner suitable for {@link ZonedDateTime}. * By contrast, {@link OffsetDateTime} does not have a zone ID suitable * for use with this method, see {@link appendZoneOrOffsetId}. * * During printing, the zone is obtained using a mechanism equivalent * to querying the temporal with {@link TemporalQueries#zoneId}. * It will be printed using the result of {@link ZoneId#getId}. * If the zone cannot be obtained then an exception is thrown unless the * section of the formatter is optional. * * During parsing, the zone is parsed and must match a known zone or offset. * If the zone cannot be parsed then an exception is thrown unless the * section of the formatter is optional. * * @return {DateTimeFormatterBuilder} this, for chaining, not null * @see #appendZoneRegionId() */ appendZoneId() { this._appendInternal(new ZoneIdPrinterParser(TemporalQueries.zoneId(), 'ZoneId()')); return this; } //----------------------------------------------------------------------- /** * Appends the elements defined by the specified pattern to the builder. * * All letters 'A' to 'Z' and 'a' to 'z' are reserved as pattern letters. * The characters '{' and '}' are reserved for future use. * The characters '[' and ']' indicate optional patterns. * The following pattern letters are defined: *

     *  |Symbol  |Meaning                     |Presentation      |Examples
     *  |--------|----------------------------|------------------|----------------------------------------------------
     *  | G      | era                        | number/text      | 1; 01; AD; Anno Domini
     *  | u      | year                       | year             | 2004; 04
     *  | y      | year-of-era                | year             | 2004; 04
     *  | D      | day-of-year                | number           | 189
     *  | M      | month-of-year              | number/text      | 7; 07; Jul; July; J
     *  | d      | day-of-month               | number           | 10
     *  |        |                            |                  |
     *  | Q      | quarter-of-year            | number/text      | 3; 03; Q3
     *  | Y      | week-based-year            | year             | 1996; 96
     *  | w      | week-of-year               | number           | 27
     *  | W      | week-of-month              | number           | 27
     *  | e      | localized day-of-week      | number           | 2; Tue; Tuesday; T
     *  | E      | day-of-week                | number/text      | 2; Tue; Tuesday; T
     *  | F      | week-of-month              | number           | 3
     *  |        |                            |                  |
     *  | a      | am-pm-of-day               | text             | PM
     *  | h      | clock-hour-of-am-pm (1-12) | number           | 12
     *  | K      | hour-of-am-pm (0-11)       | number           | 0
     *  | k      | clock-hour-of-am-pm (1-24) | number           | 0
     *  |        |                            |                  |
     *  | H      | hour-of-day (0-23)         | number           | 0
     *  | m      | minute-of-hour             | number           | 30
     *  | s      | second-of-minute           | number           | 55
     *  | S      | fraction-of-second         | fraction         | 978
     *  | A      | milli-of-day               | number           | 1234
     *  | n      | nano-of-second             | number           | 987654321
     *  | N      | nano-of-day                | number           | 1234000000
     *  |        |                            |                  |
     *  | V      | time-zone ID               | zone-id          | America/Los_Angeles; Z; -08:30
     *  | z      | time-zone name             | zone-name        | Pacific Standard Time; PST
     *  | X      | zone-offset 'Z' for zero   | offset-X         | Z; -08; -0830; -08:30; -083015; -08:30:15;
     *  | x      | zone-offset                | offset-x         | +0000; -08; -0830; -08:30; -083015; -08:30:15;
     *  | Z      | zone-offset                | offset-Z         | +0000; -0800; -08:00;
     *  |        |                            |                  |
     *  | p      | pad next                   | pad modifier     | 1
     *  |        |                            |                  |
     *  | '      | escape for text            | delimiter        |
     *  | ''     | single quote               | literal          | '
     *  | [      | optional section start     |                  |
     *  | ]      | optional section end       |                  |
     *  | {}     | reserved for future use    |                  |
     * 
* * The count of pattern letters determine the format. * * **Text**: The text style is determined based on the number of pattern letters used. * Less than 4 pattern letters will use the short form (see {@link TextStyle#SHORT}). * Exactly 4 pattern letters will use the full form (see {@link TextStyle#FULL}). * Exactly 5 pattern letters will use the narrow form (see {@link TextStyle#NARROW}). * * **Number**: If the count of letters is one, then the value is printed using the minimum number * of digits and without padding as per {@link appendValue}. Otherwise, the * count of digits is used as the width of the output field as per {@link appendValue}. * * **Number/Text**: If the count of pattern letters is 3 or greater, use the Text rules above. * Otherwise use the Number rules above. * * **Fraction**: Outputs the nano-of-second field as a fraction-of-second. * The nano-of-second value has nine digits, thus the count of pattern letters is from 1 to 9. * If it is less than 9, then the nano-of-second value is truncated, with only the most * significant digits being output. * When parsing in strict mode, the number of parsed digits must match the count of pattern letters. * When parsing in lenient mode, the number of parsed digits must be at least the count of pattern * letters, up to 9 digits. * * **Year**: The count of letters determines the minimum field width below which padding is used. * If the count of letters is two, then a reduced (see {@link appendValueReduced}) two digit form is used. * For printing, this outputs the rightmost two digits. For parsing, this will parse using the * base value of 2000, resulting in a year within the range 2000 to 2099 inclusive. * If the count of letters is less than four (but not two), then the sign is only output for negative * years as per {@link SignStyle#NORMAL}. * Otherwise, the sign is output if the pad width is exceeded, as per {@link SignStyle#EXCEEDS_PAD} * * **ZoneId**: This outputs the time-zone ID, such as 'Europe/Paris'. * If the count of letters is two, then the time-zone ID is output. * Any other count of letters throws {@link IllegalArgumentException}. *
     *  Pattern     Equivalent builder methods
     *   VV          appendZoneId()
     * 
* * **Zone names**: This outputs the display name of the time-zone ID. * If the count of letters is one, two or three, then the short name is output. * If the count of letters is four, then the full name is output. * Five or more letters throws {@link IllegalArgumentException}. *
     *  Pattern     Equivalent builder methods
     *   z           appendZoneText(TextStyle.SHORT)
     *   zz          appendZoneText(TextStyle.SHORT)
     *   zzz         appendZoneText(TextStyle.SHORT)
     *   zzzz        appendZoneText(TextStyle.FULL)
     * 
* * **Offset X and x**: This formats the offset based on the number of pattern letters. * One letter outputs just the hour', such as '+01', unless the minute is non-zero * in which case the minute is also output, such as '+0130'. * Two letters outputs the hour and minute, without a colon, such as '+0130'. * Three letters outputs the hour and minute, with a colon, such as '+01:30'. * Four letters outputs the hour and minute and optional second, without a colon, such as '+013015'. * Five letters outputs the hour and minute and optional second, with a colon, such as '+01:30:15'. * Six or more letters throws {@link IllegalArgumentException}. * Pattern letter 'X' (upper case) will output 'Z' when the offset to be output would be zero, * whereas pattern letter 'x' (lower case) will output '+00', '+0000', or '+00:00'. *
     *  Pattern     Equivalent builder methods
     *   X           appendOffset("+HHmm","Z")
     *   XX          appendOffset("+HHMM","Z")
     *   XXX         appendOffset("+HH:MM","Z")
     *   XXXX        appendOffset("+HHMMss","Z")
     *   XXXXX       appendOffset("+HH:MM:ss","Z")
     *   x           appendOffset("+HHmm","+00")
     *   xx          appendOffset("+HHMM","+0000")
     *   xxx         appendOffset("+HH:MM","+00:00")
     *   xxxx        appendOffset("+HHMMss","+0000")
     *   xxxxx       appendOffset("+HH:MM:ss","+00:00")
     * 
* * **Offset Z**: This formats the offset based on the number of pattern letters. * One, two or three letters outputs the hour and minute, without a colon, such as '+0130'. * Four or more letters throws {@link IllegalArgumentException}. * The output will be '+0000' when the offset is zero. *
     *  Pattern     Equivalent builder methods
     *   Z           appendOffset("+HHMM","+0000")
     *   ZZ          appendOffset("+HHMM","+0000")
     *   ZZZ         appendOffset("+HHMM","+0000")
     * 
* * **Optional section**: The optional section markers work exactly like calling {@link optionalStart} * and {@link optionalEnd}. * * **Pad modifier**: Modifies the pattern that immediately follows to be padded with spaces. * The pad width is determined by the number of pattern letters. * This is the same as calling {@link padNext}. * * For example, 'ppH' outputs the hour-of-day padded on the left with spaces to a width of 2. * * Any unrecognized letter is an error. * Any non-letter character, other than '[', ']', '{', '}' and the single quote will be output directly. * Despite this, it is recommended to use single quotes around all characters that you want to * output directly to ensure that future changes do not break your application. * * Note that the pattern string is similar, but not identical, to * {@link java.text.SimpleDateFormat}. * The pattern string is also similar, but not identical, to that defined by the * Unicode Common Locale Data Repository (CLDR/LDML). * Pattern letters 'E' and 'u' are merged, which changes the meaning of "E" and "EE" to be numeric. * Pattern letters 'X' is aligned with Unicode CLDR/LDML, which affects pattern 'X'. * Pattern letter 'y' and 'Y' parse years of two digits and more than 4 digits differently. * Pattern letters 'n', 'A', 'N', 'I' and 'p' are added. * Number types will reject large numbers. * * @param {String} pattern the pattern to add, not null * @return {DateTimeFormatterBuilder} this, for chaining, not null * @throws IllegalArgumentException if the pattern is invalid */ appendPattern(pattern) { requireNonNull(pattern, 'pattern'); this._parsePattern(pattern); return this; } //----------------------------------------------------------------------- // empty implementations of locale functionality, be implemented/overridden by js-joda-locale appendZoneText() { throw new IllegalArgumentException('Pattern using (localized) text not implemented, use @js-joda/locale plugin!'); } appendText() { throw new IllegalArgumentException('Pattern using (localized) text not implemented, use @js-joda/locale plugin!'); } appendLocalizedOffset() { throw new IllegalArgumentException('Pattern using (localized) text not implemented, use @js-joda/locale plugin!'); } appendWeekField() { throw new IllegalArgumentException('Pattern using (localized) text not implemented, use @js-joda/locale plugin!'); } //----------------------------------------------------------------------- _parsePattern(pattern) { /** Map of letters to fields. */ const FIELD_MAP = { 'G': ChronoField.ERA, 'y': ChronoField.YEAR_OF_ERA, 'u': ChronoField.YEAR, 'Q': IsoFields.QUARTER_OF_YEAR, 'q': IsoFields.QUARTER_OF_YEAR, 'M': ChronoField.MONTH_OF_YEAR, 'L': ChronoField.MONTH_OF_YEAR, 'D': ChronoField.DAY_OF_YEAR, 'd': ChronoField.DAY_OF_MONTH, 'F': ChronoField.ALIGNED_DAY_OF_WEEK_IN_MONTH, 'E': ChronoField.DAY_OF_WEEK, 'c': ChronoField.DAY_OF_WEEK, 'e': ChronoField.DAY_OF_WEEK, 'a': ChronoField.AMPM_OF_DAY, 'H': ChronoField.HOUR_OF_DAY, 'k': ChronoField.CLOCK_HOUR_OF_DAY, 'K': ChronoField.HOUR_OF_AMPM, 'h': ChronoField.CLOCK_HOUR_OF_AMPM, 'm': ChronoField.MINUTE_OF_HOUR, 's': ChronoField.SECOND_OF_MINUTE, 'S': ChronoField.NANO_OF_SECOND, 'A': ChronoField.MILLI_OF_DAY, 'n': ChronoField.NANO_OF_SECOND, 'N': ChronoField.NANO_OF_DAY }; for (let pos = 0; pos < pattern.length; pos++) { let cur = pattern.charAt(pos); if ((cur >= 'A' && cur <= 'Z') || (cur >= 'a' && cur <= 'z')) { let start = pos++; for (; pos < pattern.length && pattern.charAt(pos) === cur; pos++); // short loop let count = pos - start; // padding if (cur === 'p') { let pad = 0; if (pos < pattern.length) { cur = pattern.charAt(pos); if ((cur >= 'A' && cur <= 'Z') || (cur >= 'a' && cur <= 'z')) { pad = count; start = pos++; for (; pos < pattern.length && pattern.charAt(pos) === cur; pos++); // short loop count = pos - start; } } if (pad === 0) { throw new IllegalArgumentException( `Pad letter 'p' must be followed by valid pad pattern: ${pattern}`); } this.padNext(pad); // pad and continue parsing } // main rules const field = FIELD_MAP[cur]; if (field != null) { this._parseField(cur, count, field); } else if (cur === 'z') { if (count > 4) { throw new IllegalArgumentException(`Too many pattern letters: ${cur}`); } else if (count === 4) { this.appendZoneText(TextStyle.FULL); } else { this.appendZoneText(TextStyle.SHORT); } } else if (cur === 'V') { if (count !== 2) { throw new IllegalArgumentException(`Pattern letter count must be 2: ${cur}`); } this.appendZoneId(); } else if (cur === 'Z') { if (count < 4) { this.appendOffset('+HHMM', '+0000'); } else if (count === 4) { this.appendLocalizedOffset(TextStyle.FULL); } else if (count === 5) { this.appendOffset('+HH:MM:ss', 'Z'); } else { throw new IllegalArgumentException(`Too many pattern letters: ${cur}`); } } else if (cur === 'O') { if (count === 1) { this.appendLocalizedOffset(TextStyle.SHORT); } else if (count === 4) { this.appendLocalizedOffset(TextStyle.FULL); } else { throw new IllegalArgumentException(`Pattern letter count must be 1 or 4: ${cur}`); } } else if (cur === 'X') { if (count > 5) { throw new IllegalArgumentException(`Too many pattern letters: ${cur}`); } this.appendOffset(OffsetIdPrinterParser.PATTERNS[count + (count === 1 ? 0 : 1)], 'Z'); } else if (cur === 'x') { if (count > 5) { throw new IllegalArgumentException(`Too many pattern letters: ${cur}`); } const zero = (count === 1 ? '+00' : (count % 2 === 0 ? '+0000' : '+00:00')); this.appendOffset(OffsetIdPrinterParser.PATTERNS[count + (count === 1 ? 0 : 1)], zero); } else if (cur === 'W') { if (count > 1) { throw new IllegalArgumentException(`Too many pattern letters: ${cur}`); } this.appendWeekField('W', count); } else if (cur === 'w') { if (count > 2) { throw new IllegalArgumentException(`Too many pattern letters: ${cur}`); } this.appendWeekField('w', count); } else if (cur === 'Y') { this.appendWeekField('Y', count); } else { throw new IllegalArgumentException(`Unknown pattern letter: ${cur}`); } pos--; } else if (cur === '\'') { // parse literals const start = pos++; for (; pos < pattern.length; pos++) { if (pattern.charAt(pos) === '\'') { if (pos + 1 < pattern.length && pattern.charAt(pos + 1) === '\'') { pos++; } else { break; // end of literal } } } if (pos >= pattern.length) { throw new IllegalArgumentException(`Pattern ends with an incomplete string literal: ${pattern}`); } const str = pattern.substring(start + 1, pos); if (str.length === 0) { this.appendLiteral('\''); } else { this.appendLiteral(str.replace('\'\'', '\'')); } } else if (cur === '[') { this.optionalStart(); } else if (cur === ']') { if (this._active._parent === null) { throw new IllegalArgumentException('Pattern invalid as it contains ] without previous ['); } this.optionalEnd(); } else if (cur === '{' || cur === '}' || cur === '#') { throw new IllegalArgumentException(`Pattern includes reserved character: '${cur}'`); } else { this.appendLiteral(cur); } } } _parseField(cur, count, field) { switch (cur) { case 'u': case 'y': if (count === 2) { this.appendValueReduced(field, 2, 2, ReducedPrinterParser.BASE_DATE); } else if (count < 4) { this.appendValue(field, count, MAX_WIDTH, SignStyle.NORMAL); } else { this.appendValue(field, count, MAX_WIDTH, SignStyle.EXCEEDS_PAD); } break; case 'M': case 'Q': switch (count) { case 1: this.appendValue(field); break; case 2: this.appendValue(field, 2); break; case 3: this.appendText(field, TextStyle.SHORT); break; case 4: this.appendText(field, TextStyle.FULL); break; case 5: this.appendText(field, TextStyle.NARROW); break; default: throw new IllegalArgumentException(`Too many pattern letters: ${cur}`); } break; case 'L': case 'q': switch (count) { case 1: this.appendValue(field); break; case 2: this.appendValue(field, 2); break; case 3: this.appendText(field, TextStyle.SHORT_STANDALONE); break; case 4: this.appendText(field, TextStyle.FULL_STANDALONE); break; case 5: this.appendText(field, TextStyle.NARROW_STANDALONE); break; default: throw new IllegalArgumentException(`Too many pattern letters: ${cur}`); } break; case 'e': switch (count) { case 1: case 2: this.appendWeekField('e', count); break; case 3: this.appendText(field, TextStyle.SHORT); break; case 4: this.appendText(field, TextStyle.FULL); break; case 5: this.appendText(field, TextStyle.NARROW); break; default: throw new IllegalArgumentException(`Too many pattern letters: ${cur}`); } // eslint-disable-next-line no-unreachable break; case 'c': switch (count) { case 1: this.appendWeekField('c', count); break; case 2: throw new IllegalArgumentException(`Invalid number of pattern letters: ${cur}`); case 3: this.appendText(field, TextStyle.SHORT_STANDALONE); break; case 4: this.appendText(field, TextStyle.FULL_STANDALONE); break; case 5: this.appendText(field, TextStyle.NARROW_STANDALONE); break; default: throw new IllegalArgumentException(`Too many pattern letters: ${cur}`); } // eslint-disable-next-line no-unreachable break; case 'a': if (count === 1) { this.appendText(field, TextStyle.SHORT); } else { throw new IllegalArgumentException(`Too many pattern letters: ${cur}`); } // eslint-disable-next-line no-unreachable break; case 'E': case 'G': switch (count) { case 1: case 2: case 3: this.appendText(field, TextStyle.SHORT); break; case 4: this.appendText(field, TextStyle.FULL); break; case 5: this.appendText(field, TextStyle.NARROW); break; default: throw new IllegalArgumentException(`Too many pattern letters: ${cur}`); } // eslint-disable-next-line no-unreachable break; case 'S': this.appendFraction(ChronoField.NANO_OF_SECOND, count, count, false); break; case 'F': if (count === 1) { this.appendValue(field); } else { throw new IllegalArgumentException(`Too many pattern letters: ${cur}`); } break; case 'd': case 'h': case 'H': case 'k': case 'K': case 'm': case 's': if (count === 1) { this.appendValue(field); } else if (count === 2) { this.appendValue(field, count); } else { throw new IllegalArgumentException(`Too many pattern letters: ${cur}`); } break; case 'D': if (count === 1) { this.appendValue(field); } else if (count <= 3) { this.appendValue(field, count); } else { throw new IllegalArgumentException(`Too many pattern letters: ${cur}`); } break; default: if (count === 1) { this.appendValue(field); } else { this.appendValue(field, count); } break; } } /** * padNext function overloading */ padNext() { if (arguments.length === 1) { return this._padNext1.apply(this, arguments); } else { return this._padNext2.apply(this, arguments); } } /** * Causes the next added printer/parser to pad to a fixed width using a space. * * This padding will pad to a fixed width using spaces. * * During formatting, the decorated element will be output and then padded * to the specified width. An exception will be thrown during printing if * the pad width is exceeded. * * During parsing, the padding and decorated element are parsed. * If parsing is lenient, then the pad width is treated as a maximum. * If parsing is case insensitive, then the pad character is matched ignoring case. * The padding is parsed greedily. Thus, if the decorated element starts with * the pad character, it will not be parsed. * * @param {number} padWidth the pad width, 1 or greater * @return {DateTimeFormatterBuilder} this, for chaining, not null * @throws IllegalArgumentException if pad width is too small */ _padNext1(padWidth) { return this._padNext2(padWidth, ' '); } /** * Causes the next added printer/parser to pad to a fixed width. * * This padding is intended for padding other than zero-padding. * Zero-padding should be achieved using the appendValue methods. * * During formatting, the decorated element will be output and then padded * to the specified width. An exception will be thrown during printing if * the pad width is exceeded. * * During parsing, the padding and decorated element are parsed. * If parsing is lenient, then the pad width is treated as a maximum. * If parsing is case insensitive, then the pad character is matched ignoring case. * The padding is parsed greedily. Thus, if the decorated element starts with * the pad character, it will not be parsed. * * @param {number} padWidth the pad width, 1 or greater * @param {String} padChar the pad character * @return {DateTimeFormatterBuilder} this, for chaining, not null * @throws IllegalArgumentException if pad width is too small */ _padNext2(padWidth, padChar) { if (padWidth < 1) { throw new IllegalArgumentException(`The pad width must be at least one but was ${padWidth}`); } this._active._padNextWidth = padWidth; this._active._padNextChar = padChar; this._active._valueParserIndex = -1; return this; } //----------------------------------------------------------------------- /** * Mark the start of an optional section. * * The output of printing can include optional sections, which may be nested. * An optional section is started by calling this method and ended by calling * {@link optionalEnd} or by ending the build process. * * All elements in the optional section are treated as optional. * During printing, the section is only output if data is available in the * {@link TemporalAccessor} for all the elements in the section. * During parsing, the whole section may be missing from the parsed string. * * For example, consider a builder setup as * `builder.appendValue(HOUR_OF_DAY,2).optionalStart().appendValue(MINUTE_OF_HOUR,2)`. * The optional section ends automatically at the end of the builder. * During printing, the minute will only be output if its value can be obtained from the date-time. * During parsing, the input will be successfully parsed whether the minute is present or not. * * @return {DateTimeFormatterBuilder} this, for chaining, not null */ optionalStart() { this._active._valueParserIndex = -1; this._active = DateTimeFormatterBuilder._of(this._active, true); return this; } /** * Ends an optional section. * * The output of printing can include optional sections, which may be nested. * An optional section is started by calling {@link optionalStart} and ended * using this method (or at the end of the builder). * * Calling this method without having previously called `optionalStart` * will throw an exception. * Calling this method immediately after calling `optionalStart` has no effect * on the formatter other than ending the (empty) optional section. * * All elements in the optional section are treated as optional. * During printing, the section is only output if data is available in the * {@link TemporalAccessor} for all the elements in the section. * During parsing, the whole section may be missing from the parsed string. * * For example, consider a builder setup as * `builder.appendValue(HOUR_OF_DAY,2).optionalStart().appendValue(MINUTE_OF_HOUR,2).optionalEnd()`. * During printing, the minute will only be output if its value can be obtained from the date-time. * During parsing, the input will be successfully parsed whether the minute is present or not. * * @return {DateTimeFormatterBuilder} this, for chaining, not null * @throws IllegalStateException if there was no previous call to `optionalStart` */ optionalEnd() { if (this._active._parent == null) { throw new IllegalStateException('Cannot call optionalEnd() as there was no previous call to optionalStart()'); } if (this._active._printerParsers.length > 0) { const cpp = new CompositePrinterParser(this._active._printerParsers, this._active._optional); this._active = this._active._parent; this._appendInternal(cpp); } else { this._active = this._active._parent; } return this; } /** * Appends a printer and/or parser to the internal list handling padding. * * @param pp the printer-parser to add, not null * @return the index into the active parsers list */ _appendInternal(pp) { assert(pp != null); if (this._active._padNextWidth > 0) { if (pp != null) { pp = new PadPrinterParserDecorator(pp, this._active._padNextWidth, this._active._padNextChar); } this._active._padNextWidth = 0; this._active._padNextChar = 0; } this._active._printerParsers.push(pp); this._active._valueParserIndex = -1; return this._active._printerParsers.length - 1; } /** * Appends a string literal to the formatter. * * This string will be output during a print. * * If the literal is empty, nothing is added to the formatter. * * @param literal the literal to append, not null * @return {DateTimeFormatterBuilder} this, for chaining, not null */ appendLiteral(literal) { assert(literal != null); if (literal.length > 0) { if (literal.length === 1) { this._appendInternalPrinterParser(new CharLiteralPrinterParser(literal.charAt(0))); } else { this._appendInternalPrinterParser(new StringLiteralPrinterParser(literal)); } } return this; } /** * Appends a printer and/or parser to the internal list handling padding. * * @param pp the printer-parser to add, not null * @return the index into the active parsers list */ _appendInternalPrinterParser(pp) { assert(pp != null); if (this._active._padNextWidth > 0) { if (pp != null) { pp = new PadPrinterParserDecorator(pp, this._active._padNextWidth, this._active._padNextChar); } this._active._padNextWidth = 0; this._active._padNextChar = 0; } this._active._printerParsers.push(pp); this._active._valueParserIndex = -1; return this._active._printerParsers.length - 1; } //----------------------------------------------------------------------- /** * Appends all the elements of a formatter to the builder. * * This method has the same effect as appending each of the constituent * parts of the formatter directly to this builder. * * @param {DateTimeFormatter} formatter the formatter to add, not null * @return {DateTimeFormatterBuilder} this, for chaining, not null */ append(formatter) { requireNonNull(formatter, 'formatter'); this._appendInternal(formatter._toPrinterParser(false)); return this; } /** * Completes this builder by creating the DateTimeFormatter. * * This will create a formatter with the specified locale. * Numbers will be printed and parsed using the standard non-localized set of symbols. * * Calling this method will end any open optional sections by repeatedly * calling {@link optionalEnd} before creating the formatter. * * This builder can still be used after creating the formatter if desired, * although the state may have been changed by calls to `optionalEnd`. * * @param resolverStyle the new resolver style * @return the created formatter, not null */ toFormatter(resolverStyle=ResolverStyle.SMART) { while (this._active._parent != null) { this.optionalEnd(); } const pp = new CompositePrinterParser(this._printerParsers, false); return new DateTimeFormatter(pp, null, DecimalStyle.STANDARD, resolverStyle, null, null, null); } } // days in a 400 year cycle = 146097 // days in a 10,000 year cycle = 146097 * 25 // seconds per day = 86400 const SECONDS_PER_10000_YEARS = 146097 * 25 * 86400; const SECONDS_0000_TO_1970 = ((146097 * 5) - (30 * 365 + 7)) * 86400; /** * Prints or parses an ISO-8601 instant. */ class InstantPrinterParser { constructor(fractionalDigits) { this.fractionalDigits = fractionalDigits; } print(context, buf) { // use INSTANT_SECONDS, thus this code is not bound by Instant.MAX const inSecs = context.getValue(ChronoField.INSTANT_SECONDS); let inNanos = 0; if (context.temporal().isSupported(ChronoField.NANO_OF_SECOND)) { inNanos = context.temporal().getLong(ChronoField.NANO_OF_SECOND); } if (inSecs == null) { return false; } const inSec = inSecs; let inNano = ChronoField.NANO_OF_SECOND.checkValidIntValue(inNanos); if (inSec >= -SECONDS_0000_TO_1970) { // current era const zeroSecs = inSec - SECONDS_PER_10000_YEARS + SECONDS_0000_TO_1970; const hi = MathUtil.floorDiv(zeroSecs, SECONDS_PER_10000_YEARS) + 1; const lo = MathUtil.floorMod(zeroSecs, SECONDS_PER_10000_YEARS); const ldt = LocalDateTime.ofEpochSecond(lo - SECONDS_0000_TO_1970, 0, ZoneOffset.UTC); if (hi > 0) { buf.append('+').append(hi); } buf.append(ldt.toString()); if (ldt.second() === 0) { buf.append(':00'); } } else { // before current era const zeroSecs = inSec + SECONDS_0000_TO_1970; const hi = MathUtil.intDiv(zeroSecs, SECONDS_PER_10000_YEARS); const lo = MathUtil.intMod(zeroSecs, SECONDS_PER_10000_YEARS); const ldt = LocalDateTime.ofEpochSecond(lo - SECONDS_0000_TO_1970, 0, ZoneOffset.UTC); const pos = buf.length(); buf.append(ldt.toString()); if (ldt.second() === 0) { buf.append(':00'); } if (hi < 0) { if (ldt.year() === -10000) { buf.replace(pos, pos + 2, `${hi - 1}`); } else if (lo === 0) { buf.insert(pos, hi); } else { buf.insert(pos + 1, Math.abs(hi)); } } } //fraction if (this.fractionalDigits === -2) { if (inNano !== 0) { buf.append('.'); if (MathUtil.intMod(inNano, 1000000) === 0) { buf.append((`${MathUtil.intDiv(inNano, 1000000) + 1000}`).substring(1)); } else if (MathUtil.intMod(inNano, 1000) === 0) { buf.append((`${MathUtil.intDiv(inNano, 1000) + 1000000}`).substring(1)); } else { buf.append((`${(inNano) + 1000000000}`).substring(1)); } } } else if (this.fractionalDigits > 0 || (this.fractionalDigits === -1 && inNano > 0)) { buf.append('.'); let div = 100000000; for (let i = 0; ((this.fractionalDigits === -1 && inNano > 0) || i < this.fractionalDigits); i++) { const digit = MathUtil.intDiv(inNano, div); buf.append(digit); inNano = inNano - (digit * div); div = MathUtil.intDiv(div, 10); } } buf.append('Z'); return true; } parse(context, text, position) { // new context to avoid overwriting fields like year/month/day const newContext = context.copy(); const minDigits = (this.fractionalDigits < 0 ? 0 : this.fractionalDigits); const maxDigits = (this.fractionalDigits < 0 ? 9 : this.fractionalDigits); const parser = new DateTimeFormatterBuilder() .append(DateTimeFormatter.ISO_LOCAL_DATE).appendLiteral('T') .appendValue(ChronoField.HOUR_OF_DAY, 2).appendLiteral(':').appendValue(ChronoField.MINUTE_OF_HOUR, 2).appendLiteral(':') .appendValue(ChronoField.SECOND_OF_MINUTE, 2).appendFraction(ChronoField.NANO_OF_SECOND, minDigits, maxDigits, true).appendLiteral('Z') .toFormatter()._toPrinterParser(false); const pos = parser.parse(newContext, text, position); if (pos < 0) { return pos; } // parser restricts most fields to 2 digits, so definitely int // correctly parsed nano is also guaranteed to be valid const yearParsed = newContext.getParsed(ChronoField.YEAR); const month = newContext.getParsed(ChronoField.MONTH_OF_YEAR); const day = newContext.getParsed(ChronoField.DAY_OF_MONTH); let hour = newContext.getParsed(ChronoField.HOUR_OF_DAY); const min = newContext.getParsed(ChronoField.MINUTE_OF_HOUR); const secVal = newContext.getParsed(ChronoField.SECOND_OF_MINUTE); const nanoVal = newContext.getParsed(ChronoField.NANO_OF_SECOND); let sec = (secVal != null ? secVal : 0); const nano = (nanoVal != null ? nanoVal : 0); const year = MathUtil.intMod(yearParsed, 10000); let days = 0; if (hour === 24 && min === 0 && sec === 0 && nano === 0) { hour = 0; days = 1; } else if (hour === 23 && min === 59 && sec === 60) { context.setParsedLeapSecond(); sec = 59; } let instantSecs; try { const ldt = LocalDateTime.of(year, month, day, hour, min, sec, 0).plusDays(days); instantSecs = ldt.toEpochSecond(ZoneOffset.UTC); instantSecs += MathUtil.safeMultiply(MathUtil.intDiv(yearParsed, 10000), SECONDS_PER_10000_YEARS); } catch (ex) { return ~position; } let successPos = pos; successPos = context.setParsedField(ChronoField.INSTANT_SECONDS, instantSecs, position, successPos); return context.setParsedField(ChronoField.NANO_OF_SECOND, nano, position, successPos); } toString() { return 'Instant()'; } } /** * Used by parseDefaulting(). * @implements {DateTimePrinterParser} * @private */ class DefaultingParser { /** * @param {TemporalField} field * @param {number} value */ constructor(field, value) { this._field = field; this._value = value; } /** * @param {DateTimePrintContext} context * @param {StringBuilder} buf * @return {boolean} */ print() { return true; } /** * @param {DateTimeParseContext} context * @param {string} text * @param {number} position * @returns {number} */ parse(context, text, position) { if (context.getParsed(this._field) == null) { context.setParsedField(this._field, this._value, position, position); } return position; } } export function _init() { ReducedPrinterParser.BASE_DATE = LocalDate.of(2000, 1, 1); DateTimeFormatterBuilder.CompositePrinterParser = CompositePrinterParser; DateTimeFormatterBuilder.PadPrinterParserDecorator = PadPrinterParserDecorator; DateTimeFormatterBuilder.SettingsParser = SettingsParser; DateTimeFormatterBuilder.CharLiteralPrinterParser = StringLiteralPrinterParser; DateTimeFormatterBuilder.StringLiteralPrinterParser = StringLiteralPrinterParser; DateTimeFormatterBuilder.CharLiteralPrinterParser = CharLiteralPrinterParser; DateTimeFormatterBuilder.NumberPrinterParser = NumberPrinterParser; DateTimeFormatterBuilder.ReducedPrinterParser = ReducedPrinterParser; DateTimeFormatterBuilder.FractionPrinterParser = FractionPrinterParser; DateTimeFormatterBuilder.OffsetIdPrinterParser = OffsetIdPrinterParser; DateTimeFormatterBuilder.ZoneIdPrinterParser = ZoneIdPrinterParser; }