[cp-patches] RFC822 formatting for java.text.SimpleDateFormat

[Andrew John Hughes]

I'm committing the attached patch which allows the java.text.SimpleDateFormat
class to format, as well as parse, the Z pattern (RFC822 timezones).
I noticed that the locale information for this was out of sync with the
CLDR data.  Are we pulling the pattern characters from there?  All but
the base, en and nl are using the 24 character sets, so I assume some
are.

I've added the additional fields to java.text.DateFormat as GNU extensions.
'Z' is supported by Sun, but there is no field position for it, oddly.
The others aren't.  Our set now matches that given in the CLDR documentation,
although formatting and parsing support currently only exists for Z.

Changelog:

2005-01-23  Andrew John Hughes  <address@hidden>

        * gnu/java/locale/LocaleInformation.java:
        Extended localPatternChars string to match root.xml.
        * gnu/java/locale/LocaleInformation_en.java:
        Removed invalid localPatternChars string.
        * gnu/java/locale/LocaleInformation_nl.java:
        Likewise.
        * java/text/DateFormat.java:
        Documented pattern character offset constants and
        added new ones.
        (Field): Added new static fields for new pattern chars.
        * java/text/SimpleDateFormat.java:
        (CompiledField): Changed name of FieldSizePair class
        to CompiledField after adding the character as an
        attribute.  Changed fields to private and added
        accessors to give encapsulation.
        (CompiledField.CompiledField(int,int,char)): Extended
        with character field.
        (CompiledField.getField()): New accessor method.
        (CompiledField.getSize()): New acceessor method.
        (CompiledField.getCharacter()): New accessor method.
        (CompiledField.toString()): Added primarily for debugging.
        (standardChars): Now uses extended 24 character sequence.
        (compileFormat(String)): Changed to use CompiledField.
        (formatWithAttribute(java.util.Date, gnu.java.text.FormatBuffer,
        java.text.FieldPosition)): Changed to use CompiledField.
        New handler for RFC 822 timezones added.

-- 
Andrew :-)

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