Chromium Code Reviews
chromiumcodereview-hr@appspot.gserviceaccount.com (chromiumcodereview-hr) | Please choose your nickname with Settings | Help | Chromium Project | Gerrit Changes | Sign out
(1221)

Unified Diff: lib/i18n/lib/date_format_field.dart

Issue 10827227: Start moving non-platform libraries from lib/ to pkg/ . (Closed) Base URL: http://dart.googlecode.com/svn/branches/bleeding_edge/dart/
Patch Set: Start moving non-platform libraries from lib/ to pkg/ Created 8 years, 4 months ago
Use n/p to move between diff chunks; N/P to move between comments. Draft comments are only viewable by you.
Jump to:
View side-by-side diff with in-line comments
Download patch
« no previous file with comments | « lib/i18n/intl_message.dart ('k') | lib/i18n/lib/date_format_helpers.dart » ('j') | no next file with comments »
Expand Comments ('e') | Collapse Comments ('c') | Show Comments Hide Comments ('s')
Index: lib/i18n/lib/date_format_field.dart
===================================================================
--- lib/i18n/lib/date_format_field.dart (revision 10654)
+++ lib/i18n/lib/date_format_field.dart (working copy)
@@ -1,402 +0,0 @@
-// Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-/**
- * This is a private class internal to DateFormat which is used for formatting
- * particular fields in a template. e.g. if the format is hh:mm:ss then the
- * fields would be "hh", ":", "mm", ":", and "ss". Each type of field knows
- * how to format that portion of a date.
- */
-class _DateFormatField {
- /** The format string that defines us, e.g. "hh" */
- String pattern;
-
- /** The DateFormat that we are part of.*/
- DateFormat parent;
-
- _DateFormatField(this.pattern, this.parent);
-
- /**
- * Return the width of [pattern]. Different widths represent different
- * formatting options. See the comment for DateFormat for details.
- */
- int get width() => pattern.length;
-
- String fullPattern() => pattern;
-
- String toString() => pattern;
-
- /** Format date according to our specification and return the result. */
- String format(Date date) {
- // Default implementation in the superclass, works for both types of
- // literal patterns, and is overridden by _DateFormatPatternField.
- return pattern;
- }
-
- abstract void parse(_Stream input, _DateBuilder dateFields);
-
- /** Parse a literal field. We just look for the exact input. */
- void parseLiteral(_Stream input) {
- var found = input.read(width);
- if (found != pattern) {
- throwFormatException(input);
- }
- }
-
- /** Throw a format exception with an error message indicating the position.*/
- void throwFormatException(_Stream stream) {
- throw new FormatException("Trying to read $this from ${stream.contents} "
- "at position ${stream.index}");
- }
-}
-
-/**
- * Represents a literal field - a sequence of characters that doesn't
- * change according to the date's data. As such, the implementation
- * is extremely simple.
- */
-class _DateFormatLiteralField extends _DateFormatField {
-
- _DateFormatLiteralField(pattern, parent): super(pattern, parent);
-
- parse(_Stream input, _DateBuilder dateFields) {
- return parseLiteral(input);
- }
-}
-
-/**
- * Represents a literal field with quoted characters in it. This is
- * only slightly more complex than a _DateFormatLiteralField.
- */
-class _DateFormatQuotedField extends _DateFormatField {
-
- String _fullPattern;
-
- String fullPattern() => _fullPattern;
-
- _DateFormatQuotedField(pattern, parent): super(pattern, parent) {
- _fullPattern = pattern;
- patchQuotes();
- }
-
- parse(_Stream input, _DateBuilder dateFields) {
- return parseLiteral(input);
- }
-
- void patchQuotes() {
- if (pattern == "''") {
- pattern = "'";
- } else {
- pattern = pattern.substring(1, pattern.length - 1);
- var twoEscapedQuotes = new RegExp(@"''");
- pattern = pattern.replaceAll(twoEscapedQuotes, "'");
- }
- }
-}
-
-/*
- * Represents a field in the pattern that formats some aspect of the
- * date. Consists primarily of a switch on the particular pattern characters
- * to determine what to do.
- */
-class _DateFormatPatternField extends _DateFormatField {
-
- _DateFormatPatternField(pattern, parent): super(pattern, parent);
-
- /** Format date according to our specification and return the result. */
- String format(Date date) {
- return formatField(date);
- }
-
- /**
- * Parse the date according to our specification and put the result
- * into the correct place in dateFields.
- */
- void parse(_Stream input, _DateBuilder dateFields) {
- parseField(input, dateFields);
- }
-
- /**
- * Parse a field representing part of a date pattern. Note that we do not
- * return a value, but rather build up the result in [builder].
- */
- void parseField(_Stream input, _DateBuilder builder) {
- try {
- switch(pattern[0]) {
- case 'a': parseAmPm(input, builder); break;
- case 'c': parseStandaloneDay(input); break;
- case 'd': handleNumericField(input, builder.setDay); break; // day
- case 'E': parseDayOfWeek(input); break;
- case 'G': break; // era
- case 'h': parse1To12Hours(input, builder); break;
- case 'H': handleNumericField(input, builder.setHour); break; // hour 0-23
- case 'K': handleNumericField(input, builder.setHour); break; //hour 0-11
- case 'k': handleNumericField(input, builder.setHour,-1); break; //hr 1-24
- case 'L': parseStandaloneMonth(input, builder); break;
- case 'M': parseMonth(input, builder); break;
- case 'm': handleNumericField(input, builder.setMinute); break; // minutes
- case 'Q': break; // quarter
- case 'S': handleNumericField(input, builder.setFractionalSecond); break;
- case 's': handleNumericField(input, builder.setSecond); break;
- case 'v': break; // time zone id
- case 'y': handleNumericField(input, builder.setYear); break;
- case 'z': break; // time zone
- case 'Z': break; // time zone RFC
- default: return;
- }
- } catch (var e) { throwFormatException(input); }
- }
-
- /** Formatting logic if we are of type FIELD */
- String formatField(Date date) {
- switch (pattern[0]) {
- case 'a': return formatAmPm(date);
- case 'c': return formatStandaloneDay(date);
- case 'd': return formatDayOfMonth(date);
- case 'E': return formatDayOfWeek(date);
- case 'G': return formatEra(date);
- case 'h': return format1To12Hours(date);
- case 'H': return format0To23Hours(date);
- case 'K': return format0To11Hours(date);
- case 'k': return format24Hours(date);
- case 'L': return formatStandaloneMonth(date);
- case 'M': return formatMonth(date);
- case 'm': return formatMinutes(date);
- case 'Q': return formatQuarter(date);
- case 'S': return formatFractionalSeconds(date);
- case 's': return formatSeconds(date);
- case 'v': return formatTimeZoneId(date);
- case 'y': return formatYear(date);
- case 'z': return formatTimeZone(date);
- case 'Z': return formatTimeZoneRFC(date);
- default: return '';
- }
- }
-
- /** Return the symbols for our current locale. */
- DateSymbols get symbols() => dateTimeSymbols[parent.locale];
-
- formatEra(Date date) {
- var era = date.year > 0 ? 1 : 0;
- return width >= 4 ? symbols.ERANAMES[era] :
- symbols.ERAS[era];
- }
-
- formatYear(Date date) {
- // TODO(alanknight): Proper handling of years <= 0
- var year = date.year;
- if (year < 0) {
- year = -year;
- }
- return width == 2 ? padTo(2, year % 100) : year.toString();
- }
-
- /**
- * We are given [input] as a stream from which we want to read a date. We
- * can't dynamically build up a date, so we are given a list [dateFields] of
- * the constructor arguments and an [position] at which to set it
- * (year,month,day,hour,minute,second,fractionalSecond)
- * then after all parsing is done we construct a date from the arguments.
- * This method handles reading any of the numeric fields. The [offset]
- * argument allows us to compensate for zero-based versus one-based values.
- */
- void handleNumericField(_Stream input, Function setter, [int offset = 0]) {
- var result = input.nextInteger();
- setter(result + offset);
- }
-
- /**
- * We are given [input] as a stream from which we want to read a date. We
- * can't dynamically build up a date, so we are given a list [dateFields] of
- * the constructor arguments and an [position] at which to set it
- * (year,month,day,hour,minute,second,fractionalSecond)
- * then after all parsing is done we construct a date from the arguments.
- * This method handles reading any of string fields from an enumerated set.
- */
- int parseEnumeratedString(_Stream input, List possibilities) {
- var results = new _Stream(possibilities).findIndexes(
- (each) => input.peek(each.length) == each);
- if (results.isEmpty()) throwFormatException(input);
- results.sort(
- (a, b) => possibilities[a].length.compareTo(possibilities[b].length));
- var longestResult = results.last();
- input.read(possibilities[longestResult].length);
- return longestResult;
- }
-
- String formatMonth(Date date) {
- switch (width) {
- case 5: return symbols.NARROWMONTHS[date.month-1];
- case 4: return symbols.MONTHS[date.month-1];
- case 3: return symbols.SHORTMONTHS[date.month-1];
- default:
- return padTo(width, date.month);
- }
- }
-
- void parseMonth(input, dateFields) {
- var possibilities;
- switch(width) {
- case 5: possibilities = symbols.NARROWMONTHS; break;
- case 4: possibilities = symbols.MONTHS; break;
- case 3: possibilities = symbols.SHORTMONTHS; break;
- default: return handleNumericField(input, dateFields.setMonth);
- }
- dateFields.month = parseEnumeratedString(input, possibilities) + 1;
- }
-
- String format24Hours(Date date) {
- return padTo(width, date.hour);
- }
-
- String formatFractionalSeconds(Date date) {
- // Always print at least 3 digits. If the width is greater, append 0s
- var basic = padTo(3, date.millisecond);
- if (width - 3 > 0) {
- var extra = padTo(width - 3, 0);
- return basic.concat(extra);
- } else {
- return basic;
- }
- }
-
- String formatAmPm(Date date) {
- var hours = date.hour;
- var index = (date.hour >= 12) && (date.hour < 24) ? 1 : 0;
- var ampm = symbols.AMPMS;
- return ampm[index];
- }
-
- void parseAmPm(input, dateFields) {
- // If we see a "PM" note it in an extra field.
- var ampm = parseEnumeratedString(input, symbols.AMPMS);
- if (ampm == 1) dateFields.pm = true;
- }
-
- String format1To12Hours(Date date) {
- var hours = date.hour;
- if (date.hour > 12) hours = hours - 12;
- if (hours == 0) hours = 12;
- return padTo(width, hours);
- }
-
- void parse1To12Hours(_Stream input, _DateBuilder dateFields) {
- handleNumericField(input, dateFields.setHour);
- if (dateFields.hour == 12) dateFields.hour = 0;
- }
-
- String format0To11Hours(Date date) {
- return padTo(width, date.hour % 12);
- }
-
- String format0To23Hours(Date date) {
- return padTo(width, date.hour);
- }
-
- String formatStandaloneDay(Date date) {
- switch (width) {
- case 5: return symbols.STANDALONENARROWWEEKDAYS[date.weekday % 7];
- case 4: return symbols.STANDALONEWEEKDAYS[date.weekday % 7];
- case 3: return symbols.STANDALONESHORTWEEKDAYS[date.weekday % 7];
- default:
- return padTo(1, date.day);
- }
- }
-
- void parseStandaloneDay(_Stream input) {
- // This is ignored, but we still have to skip over it the correct amount.
- var possibilities;
- switch(width) {
- case 5: possibilities = symbols.STANDALONENARROWWEEKDAYS; break;
- case 4: possibilities = symbols.STANDALONEWEEKDAYS; break;
- case 3: possibilities = symbols.STANDALONESHORTWEEKDAYS; break;
- default: return handleNumericField(input, (x)=>x);
- }
- parseEnumeratedString(input, possibilities);
- }
-
- String formatStandaloneMonth(Date date) {
- switch (width) {
- case 5:
- return symbols.STANDALONENARROWMONTHS[date.month-1];
- case 4:
- return symbols.STANDALONEMONTHS[date.month-1];
- case 3:
- return symbols.STANDALONESHORTMONTHS[date.month-1];
- default:
- return padTo(width, date.month);
- }
- }
-
- void parseStandaloneMonth(input, dateFields) {
- var possibilities;
- switch(width) {
- case 5: possibilities = symbols.STANDALONENARROWMONTHS; break;
- case 4: possibilities = symbols.STANDALONEMONTHS; break;
- case 3: possibilities = symbols.STANDALONESHORTMONTHS; break;
- default: return handleNumericField(input, dateFields.setMonth);
- }
- dateFields.month = parseEnumeratedString(input, possibilities) + 1;
- }
-
- String formatQuarter(Date date) {
- var quarter = (date.month / 3).truncate().toInt();
- if (width < 4) {
- return symbols.SHORTQUARTERS[quarter];
- } else {
- return symbols.QUARTERS[quarter];
- }
- }
- String formatDayOfMonth(Date date) {
- return padTo(width, date.day);
- }
-
- String formatDayOfWeek(Date date) {
- // Note that Dart's weekday returns 1 for Monday and 7 for Sunday.
- return (width >= 4 ? symbols.WEEKDAYS :
- symbols.SHORTWEEKDAYS)[(date.weekday) % 7];
- }
-
- void parseDayOfWeek(_Stream input) {
- // This is IGNORED, but we still have to skip over it the correct amount.
- var possibilities = width >= 4 ? symbols.WEEKDAYS : symbols.SHORTWEEKDAYS;
- parseEnumeratedString(input, possibilities);
- }
-
- String formatMinutes(Date date) {
- return padTo(width, date.minute);
- }
-
- String formatSeconds(Date date) {
- return padTo(width, date.second);
- }
-
- String formatTimeZoneId(Date date) {
- // TODO(alanknight): implement time zone support
- throw new NotImplementedException();
- }
-
- String formatTimeZone(Date date) {
- throw new NotImplementedException();
- }
-
- String formatTimeZoneRFC(Date date) {
- throw new NotImplementedException();
- }
-
- /**
- * Return a string representation of the object padded to the left with
- * zeros. Primarily useful for numbers.
- */
- String padTo(int width, Object toBePrinted) {
- var basicString = toBePrinted.toString();
- if (basicString.length >= width) return basicString;
- var buffer = new StringBuffer();
- for (var i = 0; i < width - basicString.length; i++) {
- buffer.add('0');
- }
- buffer.add(basicString);
- return buffer.toString();
- }
-}
« no previous file with comments | « lib/i18n/intl_message.dart ('k') | lib/i18n/lib/date_format_helpers.dart » ('j') | no next file with comments »

Powered by Google App Engine
This is Rietveld 408576698