See discussion below.

----Original Message----
From: Mike Beckerle mbeckerle@tresys.com
Sent: Tuesday, May 14, 2013 10:57 AM
To: Garriss Jr., James P.; Stephen Lawrence
Subject: RE: [daffodil] error error error error message

Well, here is what is happening. Because your schema has alternatives in it (choice), and none of them are passing, it is rolling up the reasons why all the alternatives failed, and listing them all.

This is a hack, but in general, if your choice has nothing that matches, it may not be for the reason that the last branch failed on that is of interest. It could be because the first, or any of the others failed that the overall thing fails.

A much more verbose presentation of this would help that lays out each failure, and the point in the schema where that choice alternative was, etc.

We will make a JIRA issue to improve this.
________________________________
From: Garriss Jr., James P. [jgarriss@mitre.org]
Sent: Tuesday, May 14, 2013 10:25 AM
To: Stephen Lawrence
Cc: Mike Beckerle
Subject: [daffodil] error error error error message

I added a check constraints to the display name, forcing Daffodil to validate the set of allowed characters on parse. And it does! It gives me the assertion error message, which is good.

But...it appears to throw the same set of error messages 4 times. Is that a bug?

Here's the key schema:

<xsd:simpleType name="DisplayName">
<xsd:annotation>
<xsd:appinfo source="http://www.ogf.org/dfdl/dfdl-1.0/">
<dfdl:assert test="

{ dfdl:checkConstraints(.) }

" message="A display name has a restricted set of allowed characters"/>
</xsd:appinfo>
</xsd:annotation>
<xsd:restriction base="xsd:string">
<xsd:pattern value="[A-Za-z0-9!#$%&'*+-/=?^_`\{\|\}]+"/>
</xsd:restriction>
</xsd:simpleType>

Here's the input (the @ is not allowed):

From: "John@Doe" <johndoe@examplename.com>

Here's the output:

C:\Users\jgarriss\Documents\DFDL_Schemas_Email\02_Message_Headers>C:\Users\jgarriss\daffodil\bin\daffodil parse -s From.xsd -r From from06_invalid_dis
play.txt
[error] Parse Error: All alternatives failed. Reason(s): List(Parse Error: Alternative failed. Reason(s): List(Parse Error: Init('<') - element.Displa
yEmail: Delimiter not found!
Schema context: element.DisplayEmail Location in file:/C:/Users/jgarriss/Documents/DFDL_Schemas_Email/02_Message_Headers/Email.xsd
Data location was preceding byte 6
UTF-8 text starting at byte 0 is: (From: "John@Doe" <johndoe@examplename.co)
Data (hex) starting at byte 0 is: (0x46726F6D3A20224A6F686E40446F6522203C6A6F686E646F65406578616D706C656E616D652E636F))
Schema context: element.DisplayEmailWithoutDisplayName Location in file:/C:/Users/jgarriss/Documents/DFDL_Schemas_Email/02_Message_Headers/Email.xsd
Data location was preceding byte 6
UTF-8 text starting at byte 0 is: (From: "John@Doe" <johndoe@examplename.co)
Data (hex) starting at byte 0 is: (0x46726F6D3A20224A6F686E40446F6522203C6A6F686E646F65406578616D706C656E616D652E636F), Parse Error: Alternative faile
d. Reason(s): List(Parse Error: Assertion failed. A display name has a restricted set of allowed characters
Schema context: simpleType.DisplayName Location in file:/C:/Users/jgarriss/Documents/DFDL_Schemas_Email/02_Message_Headers/Email.xsd
Data location was preceding byte 17
UTF-8 text starting at byte 16 is: ( <johndoe@examplename.com>
)
Data (hex) starting at byte 16 is: (0x203C6A6F686E646F65406578616D706C656E616D652E636F6D3E0D0A))
Schema context: element.DisplayEmailWithoutDisplayName Location in file:/C:/Users/jgarriss/Documents/DFDL_Schemas_Email/02_Message_Headers/Email.xsd
Data location was preceding byte 6
UTF-8 text starting at byte 0 is: (From: "John@Doe" <johndoe@examplename.co)
Data (hex) starting at byte 0 is: (0x46726F6D3A20224A6F686E40446F6522203C6A6F686E646F65406578616D706C656E616D652E636F), Parse Error: Alternative faile
d. Reason(s): List(Parse Error: Assertion failed. A display name has a restricted set of allowed characters
Schema context: simpleType.DisplayName Location in file:/C:/Users/jgarriss/Documents/DFDL_Schemas_Email/02_Message_Headers/Email.xsd
Data location was preceding byte 17
UTF-8 text starting at byte 16 is: ( <johndoe@examplename.com>
)
Data (hex) starting at byte 16 is: (0x203C6A6F686E646F65406578616D706C656E616D652E636F6D3E0D0A))
Schema context: element.DisplayEmailWithoutDisplayName Location in file:/C:/Users/jgarriss/Documents/DFDL_Schemas_Email/02_Message_Headers/Email.xsd
Data location was preceding byte 6
UTF-8 text starting at byte 0 is: (From: "John@Doe" <johndoe@examplename.co)
Data (hex) starting at byte 0 is: (0x46726F6D3A20224A6F686E40446F6522203C6A6F686E646F65406578616D706C656E616D652E636F), Parse Error: Alternative faile
d. Reason(s): List(Parse Error: Assertion failed. A local part has a restricted set of allowed characters
Schema context: element.LocalPart Location in file:/C:/Users/jgarriss/Documents/DFDL_Schemas_Email/02_Message_Headers/Email.xsd
Data location was preceding byte 11
UTF-8 text starting at byte 8 is: (ohn@Doe" <johndoe@examplename.com>
)
Data (hex) starting at byte 8 is: (0x6F686E40446F6522203C6A6F686E646F65406578616D706C656E616D652E636F6D3E0D0A))
Schema context: element.DisplayEmailWithoutDisplayName Location in file:/C:/Users/jgarriss/Documents/DFDL_Schemas_Email/02_Message_Headers/Email.xsd
Data location was preceding byte 6
UTF-8 text starting at byte 0 is: (From: "John@Doe" <johndoe@examplename.co)
Data (hex) starting at byte 0 is: (0x46726F6D3A20224A6F686E40446F6522203C6A6F686E646F65406578616D706C656E616D652E636F))
Schema context: element.DisplayEmailWithoutDisplayName Location in file:/C:/Users/jgarriss/Documents/DFDL_Schemas_Email/02_Message_Headers/Email.xsd
Data location was preceding byte 6
UTF-8 text starting at byte 0 is: (From: "John@Doe" <johndoe@examplename.co)
Data (hex) starting at byte 0 is: (0x46726F6D3A20224A6F686E40446F6522203C6A6F686E646F65406578616D706C656E616D652E636F)