XML::Compile::Schema::BuiltInTypes - Define handling of built-in data-types

 XML::Compile::Schema::BuiltInTypes
   is a Exporter

 # Not for end-users
 use XML::Compile::Schema::BuiltInTypes qw/%builtin_types/;

Different schema specifications specify different available types, but there is a lot over overlap. The XML::Compile::Schema::Specs module defines the availability, but here the types are implemented.

This implementation certainly does not try to be minimal in size: using the restriction rules and inheritance structure defined in the schema specification would be too slow.

anyAtomicType

anySimpleType

anyType

Both any*Type built-ins can contain any kind of data. Perl decides how to represent the passed values.

error

boolean

Contains true, false, 1 (is true), or 0 (is false). When the writer sees a value equal to 'true' or 'false', those are used. Otherwise, the trueth value is evaluated into '0' or '1'.

The reader will return '0' (also when the XML contains the string 'false', to simplify the Perl code) or '1'.

pattern

Schema's define integer types which are derived from the decimal type. These values can grow enormously large, and therefore can only be handled correctly using Math::BigInt. When the translator is built with the sloppy_integers option, this will simplify (speed-up) the produced code considerably: all integers then shall be between -2G and +2G.

integer

An integer with an undertermined (but possibly large) number of digits.

long

A little bit shorter than an integer, but still up-to 19 digits.

negativeInteger

nonNegativeInteger

nonPositiveInteger

positiveInteger

unsignedInt

Just too long to fit in Perl's ints.

unsignedLong

Value up-to 20 digits.

byte

Signed 8-bits value.

int

short

Signed 16-bits value.

unsignedByte

Unsigned 8-bits value.

unsignedShort

unsigned 16-bits value.

decimal

Decimals are painful: they can be very large, much larger than Perl's internal floats. Therefore, we need to use Math::BigFloat which are slow but nearly seamlessly invisible in the application.

double

A floating-point value "m x 2**e", where m is an integer whose absolute value is less than 253, and e is an integer between −1074 and 971, inclusive.

The implementation does not limited the double in size, but maps it onto an precissionDecimal (Math::BigFloat) unless sloppy_float is set.

float

A small floating-point value "m x 2**e" where m is an integer whose absolute value is less than 224, and e is an integer between −149 and 104, inclusive.

The implementation does not limited the float in size, but maps it onto an precissionDecimal (Math::BigFloat) unless sloppy_float is set.

precissionDecimal

Floating point value that closely corresponds to the floating-point decimal datatypes described by IEEE/ANSI754.

base64Binary

In the hash, it will be kept as binary data. In XML, it will be base64 encoded.

hexBinary

In the hash, it will be kept as binary data. In XML, it will be hex encoded, two hex digits per byte.

date

A day, represented in localtime as YYYY-MM-DD or YYYY-MM-DD[-+]HH:mm. When a decimal value is passed, it is interpreted as time value in UTC, and will be formatted as required. When reading, the date string will not be parsed.

dateTime

A moment, represented as "date T time tz?", where date is YYYY-MM-DD, time is HH:MM:SS, and the time-zone tz is either -HH:mm, +HH:mm, or Z for UTC. The time-zone is optional, but can better be used because the default is not defined in the standard. For that reason, the dateTimeStamp got introduced, which requires the timezone.

When a decimal value is passed, it is interpreted as time value in UTC, and will be formatted as required. When reading, the date string will not be parsed.

dateTimeStamp

Like dateTime, but with required timezone which means that it is better defined. All other handling is the same.

gDay

Format ---12 or ---12+09:00 (12 days, optional time-zone)

gMonth

Format --09 or --09+07:00 (9 months, optional time-zone)

gMonthDay

Format --09-12 or --09-12+07:00 (9 months 12 days, optional time-zone)

gYear

Format 2006 or 2006+07:00 (year 2006, optional time-zone)

gYearMonth

Format 2006-11 or 2006-11+07:00 (november 2006, optional time-zone)

time

An moment in time, as can happen every day.

dayTimeDuration

Format -PnDTnHnMnS, where optional starting - means negative. The P is obligatory, and the T indicates start of a time part. All other n[DHMS] are optional.

duration

Format -PnYnMnDTnHnMnS, where optional starting - means negative. The P is obligatory, and the T indicates start of a time part. All other n[YMDHMS] are optional.

yearMonthDuration

Format -PnYnMn, where optional starting - means negative. The P is obligatory, the n[YM] are optional.

ID(, IDREF, IDREFS)

A label, reference to a label, or set of references.

PARTIAL IMPLEMENTATION: the validity of used characters is not checked.

NCName(, ENTITY, ENTITIES)

A name which contains no colons (a non-colonized name).

Name

language

An RFC3066 language indicator.

normalizedString

String where all sequence of white-spaces (including new-lines) are interpreted as one blank. Blanks at beginning and the end of the string are ignored.

string

(Usually utf8) string.

token(, NMTOKEN, NMTOKENS)

NOTATION

NOT IMPLEMENTED, so treated as string.

QName

A qualified type name: a type name with optional prefix. The prefix notation prefix:type will be translated into the {$ns}type notation.

For writers, this translation can only happen when the $ns is also in use on some other place in the message: the name-space declaration can not be added at run-time. In other cases, you will get a run-time error. Play with XML::Compile::Schema::compile(prefixes), predefining evenything what may be used, setting the used count to 1.

anyURI

You may pass a string or, for instance, an URI object which will be stringified into an URI. When read, the data will not automatically be translated into an URI object: it may not be used that way.

binary

Perl strings can contain any byte, also nul-strings, so can contain any sequence of bits. Limited to byte length.

timeDuration

'Old' name for duration().

uriReference

Probably the same rules as anyURI().

The functions named in this chapter are all used at compile-time by the translator. At that moment, they will be placed in the kind-of opcode tree which will process the data at run-time. You cannot call these functions yourself.

This module is part of XML-Compile distribution version 1.22, built on June 20, 2011. Website: http://perl.overmeer.net/xml-compile/

Other distributions in this suite: XML::Compile, XML::Compile::SOAP, XML::Compile::SOAP12, XML::Compile::SOAP::Daemon, XML::Compile::SOAP::WSA, XML::Compile::C14N, XML::Compile::WSS, XML::Compile::Tester, XML::Compile::Cache, XML::Compile::Dumper, XML::Compile::RPC, XML::Rewrite, XML::eXistDB, and XML::LibXML::Simple.

Please post questions or ideas to the mailinglist at http://lists.scsys.co.uk/cgi-bin/mailman/listinfo/xml-compile For live contact with other developers, visit the #xml-compile channel on irc.perl.org.

Copyrights 2006-2011 by Mark Overmeer. For other contributors see ChangeLog.

This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself. See http://www.perl.com/perl/misc/Artistic.html