jruby/core/src/main/java/org/jruby/util/RubyDateParser.java at master · jruby/jruby · GitHub

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/***** BEGIN LICENSE BLOCK *****

* Version: EPL 1.0/GPL 2.0/LGPL 2.1

* The contents of this file are subject to the Eclipse Public

* License Version 1.0 (the "License"); you may not use this file

* except in compliance with the License. You may obtain a copy of

* the License at http://www.eclipse.org/legal/epl-v20.html

* Software distributed under the License is distributed on an "AS

* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or

* implied. See the License for the specific language governing

* rights and limitations under the License.

* Alternatively, the contents of this file may be used under the terms of

* either of the GNU General Public License Version 2 or later (the "GPL"),

* or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),

* in which case the provisions of the GPL or the LGPL are applicable instead

* of those above. If you wish to allow use of your version of this file only

* under the terms of either the GPL or the LGPL, and not to allow others to

* use your version of this file under the terms of the EPL, indicate your

* decision by deleting the provisions above and replace them with the notice

* and other provisions required by the GPL or the LGPL. If you do not delete

* the provisions above, a recipient may use your version of this file under

* the terms of any one of the EPL, the GPL or the LGPL.

***** END LICENSE BLOCK *****/

package org.jruby.util;

import org.jcodings.Encoding;

import org.jruby.*;

import org.jruby.api.Convert;

import org.jruby.runtime.ThreadContext;

import org.jruby.runtime.builtin.IRubyObject;

import java.math.BigInteger;

import java.util.List;

import static org.jruby.api.Convert.asFixnum;

import static org.jruby.api.Create.*;

import static org.jruby.util.StrptimeParser.FormatBag.has;

/**

* This class has {@code StrptimeParser} and provides methods that are calls from JRuby.

public class RubyDateParser {

/**

* Date._strptime method in JRuby 9.1.5.0's lib/ruby/stdlib/date/format.rb is replaced

* with this method. This is Java implementation of date__strptime method in MRI 2.3.1's

* ext/date/date_strptime.c.

* See:

* https://github.com/jruby/jruby/blob/036ce39f0476d4bd718e23e64caff36bb50b8dbc/lib/ruby/stdlib/date/format.rb

* https://github.com/ruby/ruby/blob/394fa89c67722d35bdda89f10c7de5c304a5efb1/ext/date/date_strptime.c

public IRubyObject parse(ThreadContext context, final RubyString format, final RubyString text) {

return parse(context, format.asJavaString(), text);

}

public IRubyObject parse(ThreadContext context, final String format, final RubyString text) {

final List<StrptimeToken> compiledPattern = context.runtime.getCachedStrptimePattern(format);

final StrptimeParser.FormatBag bag = new StrptimeParser().parse(compiledPattern, text.asJavaString());

return bag == null ? context.nil : convertFormatBagToHash(context, bag, text.getEncoding());

}

static RubyHash convertFormatBagToHash(ThreadContext context, StrptimeParser.FormatBag bag,

Encoding encoding) {

final RubyHash hash = newHash(context);

if (has(bag.getMDay())) setHashValue(context, hash, "mday", asFixnum(context, bag.getMDay()));

if (has(bag.getWDay())) setHashValue(context, hash, "wday", asFixnum(context, bag.getWDay()));

if (has(bag.getCWDay())) setHashValue(context, hash, "cwday", asFixnum(context, bag.getCWDay()));

if (has(bag.getYDay())) setHashValue(context, hash, "yday", asFixnum(context, bag.getYDay()));

if (has(bag.getCWeek())) setHashValue(context, hash, "cweek", asFixnum(context, bag.getCWeek()));

if (has(bag.getCWYear())) setHashValue(context, hash, "cwyear", RubyBignum.newBignum(context.runtime, bag.getCWYear()));

if (has(bag.getMin())) setHashValue(context, hash, "min", asFixnum(context, bag.getMin()));

if (has(bag.getMon())) setHashValue(context, hash, "mon", asFixnum(context, bag.getMon()));

if (has(bag.getHour())) setHashValue(context, hash, "hour", asFixnum(context, bag.getHour()));

if (has(bag.getYear())) setHashValue(context, hash, "year", RubyBignum.newBignum(context.runtime, bag.getYear()));

if (has(bag.getSec())) setHashValue(context, hash, "sec", asFixnum(context, bag.getSec()));

if (has(bag.getWNum0())) setHashValue(context, hash, "wnum0", asFixnum(context, bag.getWNum0()));

if (has(bag.getWNum1())) setHashValue(context, hash, "wnum1", asFixnum(context, bag.getWNum1()));

if (bag.getZone() != null) {

final RubyString zone = RubyString.newString(context.runtime, bag.getZone(), encoding);

setHashValue(context, hash, "zone", zone);

int offset = TimeZoneConverter.dateZoneToDiff(bag.getZone());

if (offset != TimeZoneConverter.INVALID_ZONE) setHashValue(context, hash, "offset", asFixnum(context, offset));

}

if (has(bag.getSecFraction())) {

final RubyInteger secFraction = toRubyInteger(context, bag.getSecFraction());

final RubyFixnum secFractionSize = asFixnum(context, (long) Math.pow(10, bag.getSecFractionSize()));

setHashValue(context, hash, "sec_fraction",

RubyRational.newRationalCanonicalize(context, secFraction, secFractionSize));

}

if (has(bag.getSeconds())) {

if (has(bag.getSecondsSize())) {

final RubyInteger seconds = toRubyInteger(context, bag.getSeconds());

final RubyFixnum secondsSize = asFixnum(context, (long) Math.pow(10, bag.getSecondsSize()));

setHashValue(context, hash, "seconds", RubyRational.newRationalCanonicalize(context, seconds, secondsSize));

} else {

setHashValue(context, hash, "seconds", toRubyInteger(context, bag.getSeconds()));

}

if (has(bag.getMerid())) {

setHashValue(context, hash, "_merid", asFixnum(context, bag.getMerid()));

}

if (has(bag.getCent())) {

setHashValue(context, hash, "_cent", RubyBignum.newBignum(context.runtime, bag.getCent()));

}

if (bag.getLeftover() != null) {

final RubyString leftover = newString(context, bag.getLeftover(), encoding);

setHashValue(context, hash, "leftover", leftover);

}

return hash;

}

private static RubyInteger toRubyInteger(ThreadContext context, final Number i) {

return i instanceof BigInteger bigint ?

RubyBignum.newBignum(context.runtime, bigint) :

asFixnum(context, i.longValue());

}

private static void setHashValue(final ThreadContext context, final RubyHash hash, final String key, final IRubyObject value) {

hash.fastASet(Convert.asSymbol(context, key), value);

}

jruby/core/src/main/java/org/jruby/util/RubyDateParser.java at master · jruby/jruby · GitHub

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jruby/core/src/main/java/org/jruby/util/RubyDateParser.java at master · jruby/jruby · GitHub

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