Duration types

<nvdbleek> ACTION-1984?

<trackbot> ACTION-1984 -- Nick Van Den Bleeken to Summarise duration types clashes -- due 2014-10-29 -- OPEN

<trackbot> https://www.w3.org/2005/06/tracker/xforms/actions/1984

<nvdbleek> http://www.w3.org/TR/xpath-functions/#duration-subtypes

<nvdbleek> https://www.w3.org/MarkUp/Forms/wiki/XForms_2.0#dt-dayTimeDuration

Erik: I noticed that these two types were defined a long time ago by XForms but since then have been taken up by XPath 2 and Schema 1.1
... though they don't refer to each other

<nvdbleek> xforms:dayTimeDuration inherits from xsd:duration and not xs:dayTimeDuration

Erik: maybe for dependency reasons
... so they are redundant in XForms
... our daytimeduration was not a union with empty
... and the same is true of xf:email

Steven: Well we need to fix that

Nick: the text says that it is derived from xs:duration, but in fact it isn't
... we should check the schema

Steven: If schema has them, we should use them, and add empty

Erik: If we do that it will make an incompatibilty with XForms 1.1, since it will now accept empty

<nvdbleek> The schema https://dvcs.w3.org/hg/xformsusers/file/88aaa18ff8a3/2.0/core/schema/xsd/XForms-20-Schema.xsd#l1584 derives from xsd:duration

Steven: But if someone has pointed the lack of empty out in XF1.1, we would have accepted it as an error. It should be seen as an erratum

Nick: The schema says that they accept empty, so we may be alright.
... the one in the spec definitely allows empty
... see section 5.2.4
... https://www.w3.org/MarkUp/Forms/wiki/XForms_2.0#dt-dayTimeDuration

Steven: xf:email allows empty too, so we're safe.

Erik: We had to change the definition of email

<ebruchez> info@orbeon.com/

Steven: Send an error report then!

Erik: Ending with a slash would work
... but shouldn't

<ebruchez> info@orbeon is valid too

Steven: This is the most revcent spec: http://tools.ietf.org/html/rfc5321
... and http://tools.ietf.org/html/rfc5322#section-3.4.1

Erik: It is a problem, all the same

Nick: There are new specs for international domains as well

Erik: The data type lets too many things through

Nick: The spec should allow an implementation to do more checks on the type
... such as checking the existence of the domain

Steven: How about http://tools.ietf.org/html/rfc6530

Nick: Take offline?

Steven: OK

Nick: back to duration

<nvdbleek> https://dvcs.w3.org/hg/xformsusers/file/88aaa18ff8a3/2.0/core/schema/xsd/XForms-20-Schema.xsd#l1584

Nick: In our schema for daytimeduration and yearmonthduration
... we don't allow empty
... because it is a restriction on xsd:duration, and should be string

Erik: The spec text is compatible, but does allow empty

Nick: Let me just do an experiment with the current schema

Erik: There is a wording problem in the spec, using "derives" in the wrong way
... but conceptually does the right thing

Steven: So we use the xsd version and union it with empty. Good

<nvdbleek> <xs:simpleType name="dayTimeDuration">

<nvdbleek> <xs:union memberTypes="xs:dayTimeDuration">

<nvdbleek> <xs:simpleType>

<nvdbleek> <xs:restriction base="xs:string">

<nvdbleek> <xs:length value="0"/>

<nvdbleek> </xs:restriction>

<nvdbleek> </xs:simpleType>

<nvdbleek> </xs:union>

<nvdbleek> </xs:simpleType>

Steven: I have made the corresponding changes
... in the spec

<nvdbleek> Nick: hmm we can’t do it like this because the xs:dayTimeDuration is a Schema 1.1 and our schema is 1.0

Erik: Then we use XPath 2.0
... data model, that we reference

<ebruchez> http://www.w3.org/TR/xpath-datamodel/#types-predefined

<scribe> ACTION: Steven to clean up references to XPath Data Model (capitalisation and ref) [recorded in http://www.w3.org/2014/10/31-forms-minutes.html#action01]

<trackbot> Created ACTION-1985 - Clean up references to xpath data model (capitalisation and ref) [on Steven Pemberton - due 2014-11-07].

Steven: I have changed the wording of 5.2.1 to mention that the types come from XSD or XDM

Nick: I have updated the schema

<ebruchez> <item label="Cash" value="cash"/>

<ebruchez> <item label="Credit" value="cc"/>

<ebruchez> <instance id="headers">

<ebruchez> <my-headers>

<ebruchez> <my-header><name>Content-Type</name><value>application/xml</value></my-header>

<ebruchez> <my-header><name>Accept</name><value>application/xml,text/json</value></my-header>

<ebruchez> </my-headers>

<ebruchez> </instance>

<ebruchez> <header ref="instance('headers')/my-header" name="{name}" value="value"/>

<ebruchez> produces 2 headers:

<ebruchez> Content-Type: application/xml

<ebruchez> Accept: application/xml,text/json

[Lunch]

Editing session

Steven: I have now finished adding @name and @ value to <header>

https://www.w3.org/MarkUp/Forms/wiki/XForms_2.0#submit-header

I added @value to element value inthe overview

Nick: I have updated the schema for @label etc.

<nvdbleek> link to diff https://dvcs.w3.org/hg/xformsusers/diff/1180ef4957b0/2.0/core/schema/xsd/XForms-20-Schema.xsd

Steven: Does https://www.w3.org/MarkUp/Forms/wiki/XForms_2.0#Typed_Values need to be updated with the new duration types?

<nvdbleek> http://www.w3.org/TR/xpath20/#id-typed-value

<ebruchez> http://www.w3.org/TR/xslt20/#built-in-types

Erik: This is where the list comes from

Steven: I have modified section 4.3 to refer to the types in 5.2.1

This is scribe.perl Revision: 1.138  of Date: 2013-04-25 13:59:11  
Check for newer version at http://dev.w3.org/cvsweb/~checkout~/2002/scribe/

Guessing input format: RRSAgent_Text_Format (score 1.00)

Succeeded: s/Presnet/Present/
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Succeeded: i/Steven: I have now finished adding @name and @ value to <header>/Topic: Editing session
No ScribeNick specified.  Guessing ScribeNick: Steven
Inferring Scribes: Steven
Present: Steven Nick Erik
Got date from IRC log name: 31 Oct 2014
Guessing minutes URL: http://www.w3.org/2014/10/31-forms-minutes.html
People with action items: steven