JeremyYao opened a new issue, #1513: URL: https://github.com/apache/daffodil-vscode/issues/1513
## Description Error messages from the debugger during a DFDL schema debugging session may take up the entire screen. <img width="2555" height="1337" alt="Image" src="https://github.com/user-attachments/assets/5fb2ca2d-19fe-42a4-be87-9ddad49d7602"; /> ## Steps to Reproduce 0. Download a GIF file like https://media1.tenor.com/m/Ilt-dZQd-hQAAAAC/shaquille-o-neal-cat.gif 1. Put the following version of the GIF DFDL schema into your computer ```XML <?xml version="1.0" encoding="UTF-8"?> <xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema"; xmlns:dfdl="http://www.ogf.org/dfdl/dfdl-1.0/"; xmlns:daf="urn:ogf:dfdl:2013:imp:daffodil.apache.org:2018:ext" xmlns:fn="http://www.w3.org/2005/xpath-functions"; xmlns:math="http://www.w3.org/2005/xpath-functions/math"; elementFormDefault="qualified"> <!-- DFDL Schema for the GIF image format. Author: Roger Costello, The MITRE Corporation. Version: 0.1 Date: February 24, 2017 --> <!-- NOTICE This software was produced for the U. S. Government under Basic Contract No. W15P7T-13-C-A802, and is subject to the Rights in Noncommercial Computer Software and Noncommercial Computer Software Documentation Clause 252.227-7014 (FEB 2012) © 2017 The MITRE Corporation. --> <xs:annotation> <xs:appinfo source="http://www.ogf.org/dfdl/";> <dfdl:format alignmentUnits="bits" lengthUnits="bits" representation="binary" binaryNumberRep="binary" byteOrder="bigEndian" bitOrder="mostSignificantBitFirst" lengthKind="implicit" alignment="1" encodingErrorPolicy="replace" binaryFloatRep="ieee" calendarPatternKind="implicit" documentFinalTerminatorCanBeMissing="yes" emptyValueDelimiterPolicy="none" escapeSchemeRef="" fillByte="f" floating="no" ignoreCase="no" initiatedContent="no" initiator="" leadingSkip="0" separator="" separatorPolicy="suppressed" outputNewLine="%CR;%LF;" textStandardZeroRep="0" textStandardInfinityRep="Inf" textStandardExponentRep="E" textStandardNaNRep="NaN" textNumberPattern="#,##0.###;-#,##0.###" textNumberRounding="explicit" textNumberRoundingMode="roundUnnecessary" textNumberRoundingIncrement="0" textStandardGroupingSeparator="," separatorPosition="infix" sequenceKind="ordered" terminator="" textBidi="no" textNumberCheckPolicy="strict" textNumberRep="standard" textOutputMinLength="0" textPadKind="none" textStandardBase="10" textTrimKind="none" trailingSkip="0" truncateSpecifiedLengthString="no" utf16Width="fixed" encoding="US-ASCII" nilKind="literalValue" nilValueDelimiterPolicy="none" occursCountKind="parsed" choiceLengthKind="implicit" /> <!--daf:parseUnparsePolicy="parseOnly" />--> </xs:appinfo> </xs:annotation> <xs:element name="GIF"> <xs:complexType> <xs:sequence> <xs:element ref="Header" /> <xs:element ref="Logical_Screen_Descriptor" /> <xs:element ref="Global_Color_Table" minOccurs="0" dfdl:occursCountKind="implicit" /> <xs:element name="Wrapper" minOccurs="0" maxOccurs="unbounded" dfdl:occursCountKind="implicit"> <xs:complexType> <xs:sequence> <xs:element name="Byte1" type="unsignedint8"> <xs:annotation> <xs:appinfo source="http://www.ogf.org/dfdl/";> <dfdl:discriminator test="{ . ne 59 }" /> </xs:appinfo> </xs:annotation> </xs:element> <xs:element name="Byte2" type="unsignedint8" /> <xs:choice> <xs:sequence> <!-- Graphics control extension --> <xs:annotation> <xs:appinfo source="http://www.ogf.org/dfdl/";> <dfdl:discriminator test="{(Byte1 eq 33) and (Byte2 eq 249)}"/> <!-- hex 21 and F9 --> </xs:appinfo> </xs:annotation> <xs:element ref="Graphics_Control_Extension" /> </xs:sequence> <xs:sequence> <!-- Application extension --> <xs:annotation> <xs:appinfo source="http://www.ogf.org/dfdl/";> <dfdl:discriminator test="{(Byte1 eq 33) and (Byte2 eq 255)}"/> <!-- hex 21 and FF --> </xs:appinfo> </xs:annotation> <xs:element ref="Application_Extension" /> </xs:sequence> <xs:sequence> <!-- Comment extension --> <xs:annotation> <xs:appinfo source="http://www.ogf.org/dfdl/";> <dfdl:discriminator test="{(Byte1 eq 33) and (Byte2 eq 254)}"/> <!-- hex 21 and FE --> </xs:appinfo> </xs:annotation> <xs:element ref="Comment_Extension" /> </xs:sequence> <xs:sequence> <!-- Plain text extension --> <xs:annotation> <xs:appinfo source="http://www.ogf.org/dfdl/";> <dfdl:discriminator test="{(Byte1 eq 33) and (Byte2 eq 1)}"/> <!-- hex 21 and 1 --> </xs:appinfo> </xs:annotation> <xs:element ref="Plain_Text_Extension" /> </xs:sequence> <xs:sequence> <!-- Image Descriptor --> <xs:annotation> <xs:appinfo source="http://www.ogf.org/dfdl/";> <dfdl:discriminator test="{(Byte1 eq 44)}"/> <!-- hex 2C --> </xs:appinfo> </xs:annotation> <xs:element ref="Image_Descriptor_Minus_First_Two_Bytes" /> <xs:element ref="Local_Color_Table" /> <xs:element ref="Image_Data" /> </xs:sequence> </xs:choice> </xs:sequence> </xs:complexType> </xs:element> <xs:element ref="Trailer" /> </xs:sequence> </xs:complexType> </xs:element> <xs:element name="Header"> <xs:complexType> <xs:sequence> <!-- Signature - Identifies the GIF Data Stream. This field contains the fixed value 'GIF'. --> <xs:sequence dfdl:hiddenGroupRef="hidden_GIF_Signature_Group" /> <xs:element name='Signature' type='xs:string' dfdl:inputValueCalc='{ if (xs:string(../Hidden_Signature) eq "474946") then "GIF" else fn:error("gif", "fn:error called.", "Header") }' /> <!-- Version - Version number used to format the data stream. Version Numbers as of 10 July 1990 : "87a" - May 1987 and "89a" - July 1989 --> <xs:sequence dfdl:hiddenGroupRef="hidden_GIF_Version_Group"/> <xs:element name="Version" type="xs:string" dfdl:inputValueCalc='{ if (xs:string(../Hidden_Version) eq "383961") then "89a" else if (xs:string(../Hidden_Version) eq "383761") then "87a" else fn:error("gif", "fn:error called.", "Header") }'/> </xs:sequence> </xs:complexType> </xs:element> <xs:group name="hidden_GIF_Signature_Group"> <xs:sequence> <xs:element name="Hidden_Signature" type="xs:hexBinary" dfdl:length="3" dfdl:lengthKind="explicit" dfdl:lengthUnits="bytes" dfdl:outputValueCalc="{ if (../Signature eq 'GIF') then xs:hexBinary('474946') else fn:error('gif', 'fn:error called.', 'Hidden_Signature') }"> <xs:annotation> <xs:appinfo source="http://www.ogf.org/dfdl/";> <!-- The identifier is 47 49 46 (GIF) --> <dfdl:assert><![CDATA[{ xs:string(.) eq "474946" }]]></dfdl:assert> </xs:appinfo> </xs:annotation> </xs:element> </xs:sequence> </xs:group> <xs:group name="hidden_GIF_Version_Group"> <xs:sequence> <xs:element name="Hidden_Version" type="xs:hexBinary" dfdl:length="3" dfdl:lengthKind="explicit" dfdl:lengthUnits="bytes" dfdl:outputValueCalc="{ if (../Version eq '89a') then xs:hexBinary('383961') else if (../Version eq '87a') then xs:hexBinary('383761') else fn:error('gif', 'fn:error called.', 'Hidden_Version') }"> </xs:element> </xs:sequence> </xs:group> <xs:element name="Logical_Screen_Descriptor"> <xs:complexType> <xs:sequence> <xs:element name="Canvas_Width" type="unsignedint16" dfdl:byteOrder="littleEndian" /> <xs:element name="Canvas_Height" type="unsignedint16" dfdl:byteOrder="littleEndian" /> <xs:element name="Packed_Byte"> <xs:complexType> <xs:sequence> <xs:element name="Global_Color_Table_Flag" type="unsignedint1" /> <xs:element name="Color_Resolution" type="unsignedint3" /> <xs:element name="Sort_Flag" type="unsignedint1" /> <xs:element name="Size_of_Global_Color_Table" type="unsignedint3" /> </xs:sequence> </xs:complexType> </xs:element> <xs:element name="Background_Color_Index" type="unsignedint8" /> <xs:element name="Pixel_Aspect_Ratio" type="unsignedint8" /> </xs:sequence> </xs:complexType> </xs:element> <xs:element name="Global_Color_Table" dfdl:lengthKind="explicit" dfdl:lengthUnits="bytes" dfdl:length="{ if (../Logical_Screen_Descriptor/Packed_Byte/Global_Color_Table_Flag ne 1) then 0 else if (../Logical_Screen_Descriptor/Packed_Byte/Size_of_Global_Color_Table eq 0) then 3 * 2 else if (../Logical_Screen_Descriptor/Packed_Byte/Size_of_Global_Color_Table eq 1) then 3 * 4 else if (../Logical_Screen_Descriptor/Packed_Byte/Size_of_Global_Color_Table eq 2) then 3 * 8 else if (../Logical_Screen_Descriptor/Packed_Byte/Size_of_Global_Color_Table eq 3) then 3 * 16 else if (../Logical_Screen_Descriptor/Packed_Byte/Size_of_Global_Color_Table eq 4) then 3 * 32 else if (../Logical_Screen_Descriptor/Packed_Byte/Size_of_Global_Color_Table eq 5) then 3 * 64 else if (../Logical_Screen_Descriptor/Packed_Byte/Size_of_Global_Color_Table eq 6) then 3 * 128 else if (../Logical_Screen_Descriptor/Packed_Byte/Size_of_Global_Color_Table eq 7) then 3 * 256 else fn:error('gif', 'fn:error called.', 'Global_Color_Table') }"> <xs:complexType> <xs:sequence> <xs:element name="RGB" minOccurs="0" maxOccurs="unbounded" dfdl:occursCountKind="implicit"> <xs:complexType> <xs:sequence> <xs:element name="Red" type="unsignedint8"/> <xs:element name="Green" type="unsignedint8"/> <xs:element name="Blue" type="unsignedint8"/> </xs:sequence> </xs:complexType> </xs:element> </xs:sequence> </xs:complexType> </xs:element> <xs:element name="Graphics_Control_Extension"> <xs:complexType> <xs:sequence> <xs:element name="Byte_Size" type="unsignedint8" /> <xs:element name="Packed_Byte"> <xs:complexType> <xs:sequence> <xs:element name="Reserved_For_Future_Use" type="unsignedint3" /> <xs:element name="Disposal_Method" type="unsignedint3" /> <xs:element name="User_Input_Flag" type="unsignedint1" /> <xs:element name="Transparent_Color_Flag" type="unsignedint1" /> </xs:sequence> </xs:complexType> </xs:element> <xs:element name="Delay_Time" type="unsignedint16" dfdl:byteOrder="littleEndian" /> <xs:element name="Transparent_Color_Index" type="unsignedint8" /> <xs:element name="Block_Terminator" type="unsignedint8" /> </xs:sequence> </xs:complexType> </xs:element> <xs:element name="Image_Descriptor_Minus_First_Two_Bytes"> <xs:complexType> <xs:sequence> <!--<xs:element name="Image_Separator" type="unsignedint8" />--> <!-- Already consumed, in Byte1 --> <!--<xs:element name="Image_Left_Byte1" type="unsignedint8" />--> <!-- Already consumed, in Byte2 --> <xs:element name="Image_Left_Byte2" type="unsignedint8" /> <xs:element name="Image_Top" type="unsignedint16" dfdl:byteOrder="littleEndian" /> <xs:element name="Image_Width" type="unsignedint16" dfdl:byteOrder="littleEndian" /> <xs:element name="Image_Height" type="unsignedint16" dfdl:byteOrder="littleEndian" /> <xs:element name="Packed_Byte"> <xs:complexType> <xs:sequence> <xs:element name="Local_Color_Table_Flag" type="unsignedint1" /> <xs:element name="Interlace_Flag" type="unsignedint1" /> <xs:element name="Sort_Flag" type="unsignedint1" /> <xs:element name="Reserved_For_Future_Use" type="unsignedint2" /> <xs:element name="Size_of_Color_Table" type="unsignedint3" /> </xs:sequence> </xs:complexType> </xs:element> </xs:sequence> </xs:complexType> </xs:element> <xs:element name="Local_Color_Table" dfdl:lengthKind="explicit" dfdl:lengthUnits="bytes" dfdl:length="{if (../Image_Descriptor_Minus_First_Two_Bytes/Packed_Byte/Local_Color_Table_Flag ne 1) then 0 else if (../Image_Descriptor_Minus_First_Two_Bytes/Packed_Byte/Size_of_Color_Table eq 0) then 3 * 2 else if (../Image_Descriptor_Minus_First_Two_Bytes/Packed_Byte/Size_of_Color_Table eq 1) then 3 * 4 else if (../Image_Descriptor_Minus_First_Two_Bytes/Packed_Byte/Size_of_Color_Table eq 2) then 3 * 8 else if (../Image_Descriptor_Minus_First_Two_Bytes/Packed_Byte/Size_of_Color_Table eq 3) then 3 * 16 else if (../Image_Descriptor_Minus_First_Two_Bytes/Packed_Byte/Size_of_Color_Table eq 4) then 3 * 32 else if (../Image_Descriptor_Minus_First_Two_Bytes/Packed_Byte/Size_of_Color_Table eq 5) then 3 * 64 else if (../Image_Descriptor_Minus_First_Two_Bytes/Packed_Byte/Size_of_Color_Table eq 6) then 3 * 128 else if (../Image_Descriptor_Minus_First_Two_Bytes/Packed_Byte/Size_of_Color_Table eq 7) then 3 * 256 else fn:error('gif', 'fn:error called.', 'Local_Color_Table') }"> <xs:complexType> <xs:sequence> <xs:element name="RGB" minOccurs="0" maxOccurs="unbounded" dfdl:occursCountKind="implicit"> <xs:complexType> <xs:sequence> <xs:element name="Red" type="unsignedint8"/> <xs:element name="Green" type="unsignedint8"/> <xs:element name="Blue" type="unsignedint8"/> </xs:sequence> </xs:complexType> </xs:element> </xs:sequence> </xs:complexType> </xs:element> <xs:element name="Image_Data"> <xs:complexType> <xs:sequence> <xs:element name="LZW_Minimum_Code_Size" type="unsignedint8" /> <xs:element ref="Byte-Sub-block" maxOccurs="unbounded" dfdl:occursCountKind="implicit" /> <xs:element ref="Block_Terminator" /> </xs:sequence> </xs:complexType> </xs:element> <xs:element name="Plain_Text_Extension"> <xs:complexType> <xs:sequence> <xs:element name="Block_Size" type="unsignedint8" /> <xs:element name="Text_Grid_Left_Position" type="unsignedint16" dfdl:byteOrder="littleEndian" /> <xs:element name="Text_Grid_Top_Position" type="unsignedint16" dfdl:byteOrder="littleEndian" /> <xs:element name="Text_Grid_Width" type="unsignedint16" dfdl:byteOrder="littleEndian" /> <xs:element name="Text_Grid_Height" type="unsignedint16" dfdl:byteOrder="littleEndian" /> <xs:element name="Character_Cell_Width" type="unsignedint8" /> <xs:element name="Character_Cell_Height" type="unsignedint8" /> <xs:element name="Text_Foreground_Color_Index" type="unsignedint8" /> <xs:element name="Text_Background_Color_Index" type="unsignedint8" /> <xs:element ref="Text_Sub-block" maxOccurs="unbounded" dfdl:occursCountKind="implicit" /> <xs:element ref="Block_Terminator" /> </xs:sequence> </xs:complexType> </xs:element> <xs:element name="Application_Extension"> <xs:complexType> <xs:sequence> <xs:element name="Block_Size" type="unsignedint8" /> <xs:element name="Application_Identifier" type="xs:string" dfdl:lengthKind="explicit" dfdl:lengthUnits="bytes" dfdl:alignmentUnits="bytes" dfdl:length="{8}" /> <xs:element name="Application_Authentication_Code" type="xs:hexBinary" dfdl:lengthKind="explicit" dfdl:lengthUnits="bytes" dfdl:length="{3}" /> <xs:element ref="Byte-Sub-block" maxOccurs="unbounded" dfdl:occursCountKind="implicit" /> <xs:element ref="Block_Terminator" /> </xs:sequence> </xs:complexType> </xs:element> <xs:element name="Comment_Extension"> <xs:complexType> <xs:sequence> <xs:element ref="Text_Sub-block" maxOccurs="unbounded" dfdl:occursCountKind="implicit" /> <xs:element ref="Block_Terminator" /> </xs:sequence> </xs:complexType> </xs:element> <xs:element name="Text_Sub-block"> <xs:complexType> <xs:sequence> <xs:element name="Number_of_Bytes_of_Text" type="unsignedint8"> <xs:annotation> <xs:appinfo source="http://www.ogf.org/dfdl/";> <dfdl:assert><![CDATA[{ . gt 0 }]]></dfdl:assert> </xs:appinfo> </xs:annotation> </xs:element> <xs:element name="Text" type="xs:string" dfdl:lengthKind="explicit" dfdl:lengthUnits="bytes" dfdl:alignmentUnits="bytes" dfdl:length="{../Number_of_Bytes_of_Text}" /> </xs:sequence> </xs:complexType> </xs:element> <xs:element name="Byte-Sub-block"> <xs:complexType> <xs:sequence> <xs:element name="Number_of_Bytes" type="unsignedint8"> <xs:annotation> <xs:appinfo source="http://www.ogf.org/dfdl/";> <dfdl:discriminator test="{ . gt 0 }" /> </xs:appinfo> </xs:annotation> </xs:element> <xs:element name="Bytes" type="xs:hexBinary" dfdl:lengthKind="explicit" dfdl:lengthUnits="bytes" dfdl:length="{../Number_of_Bytes}" /> </xs:sequence> </xs:complexType> </xs:element> <!-- Must be 0 --> <xs:element name="Block_Terminator" type="unsignedint8"> <xs:annotation> <xs:appinfo source="http://www.ogf.org/dfdl/";> <dfdl:assert><![CDATA[{ . eq 0 }]]></dfdl:assert> </xs:appinfo> </xs:annotation> </xs:element> <!-- Must be 59 (hex 3B) --> <xs:element name="Trailer" type="unsignedint8"> <xs:annotation> <xs:appinfo source="http://www.ogf.org/dfdl/";> <dfdl:assert><![CDATA[{ . eq 59 }]]></dfdl:assert> </xs:appinfo> </xs:annotation> </xs:element> <xs:complexType name="empty"> <xs:sequence/> </xs:complexType> <xs:simpleType name="unsignedint1" dfdl:length="1" dfdl:lengthKind="explicit"> <xs:restriction base="xs:unsignedInt"/> </xs:simpleType> <xs:simpleType name="unsignedint2" dfdl:length="2" dfdl:lengthKind="explicit"> <xs:restriction base="xs:unsignedInt"/> </xs:simpleType> <xs:simpleType name="unsignedint3" dfdl:length="3" dfdl:lengthKind="explicit"> <xs:restriction base="xs:unsignedInt"/> </xs:simpleType> <xs:simpleType name="unsignedint4" dfdl:length="4" dfdl:lengthKind="explicit"> <xs:restriction base="xs:unsignedInt"/> </xs:simpleType> <xs:simpleType name="unsignedint8" dfdl:length="8" dfdl:lengthKind="explicit"> <xs:restriction base="xs:unsignedInt"/> </xs:simpleType> <xs:simpleType name="unsignedint16" dfdl:length="16" dfdl:lengthKind="explicit"> <xs:restriction base="xs:unsignedInt"/> </xs:simpleType> <xs:simpleType name="unsignedint24" dfdl:length="24" dfdl:lengthKind="explicit"> <xs:restriction base="xs:unsignedInt"/> </xs:simpleType> <xs:simpleType name="unsignedint30" dfdl:length="30" dfdl:lengthKind="explicit"> <xs:restriction base="xs:unsignedInt"/> </xs:simpleType> <xs:simpleType name="unsignedint32" dfdl:length="32" dfdl:lengthKind="explicit"> <xs:restriction base="xs:unsignedInt"/> </xs:simpleType> </xs:schema> ``` 2. Use this launch.json file which uses Daffodil 4.0.0 debugger ```JSON { "version": "0.2.0", "configurations": [ { "request": "launch", "type": "dfdl", "name": "Wizard Config", "schema": { "path": "${command:AskForSchemaName}", "rootName": null, "rootNamespace": null }, "data": "${command:AskForDataName}", "debugServer": 4711, "infosetFormat": "xml", "infosetOutput": { "type": "file", "path": "${workspaceFolder}/target/infoset.xml" }, "tdmlConfig": { "action": "generate", "name": "Default Test Case" }, "trace": true, "stopOnEntry": true, "useExistingServer": false, "openDataEditor": true, "openInfosetView": false, "openInfosetDiffView": false, "daffodilDebugClasspath": [], "dataEditor": { "port": 9000, "logging": { "file": "${workspaceFolder}/dataEditor-${omegaEditPort}.log", "level": "info" } }, "dfdlDebugger": { "daffodilVersion": "4.0.0", "timeout": "10s", "logging": { "file": "${workspaceFolder}/daffodil-debugger.log", "level": "INFO" } } } ] } ``` 3. Run the launch config <img width="530" height="317" alt="Image" src="https://github.com/user-attachments/assets/01b06062-f62b-42ec-b847-932b501016de"; /> 4. Press continue 5. Observe the long error message <img alt="Image" src="https://github.com/user-attachments/assets/5fb2ca2d-19fe-42a4-be87-9ddad49d7602"; /> ## Expected Behavior In step 5, the error message shouldn't be taking up the whole screen. It should be nice for it to show a snippet of the whole message or do say something like `Please see <INSERT LOG NAME>.log file` ## Actual Behavior <img alt="Image" src="https://github.com/user-attachments/assets/5fb2ca2d-19fe-42a4-be87-9ddad49d7602"; /> ## Additional Notes and Screenshots (optional) When testing a schema in different versions of Daffodil, the debugging session may throw out some error messages. For example, I have an older version of gif.dfdl.xsd which was able to debug a GIF file just fine in Daffodil 3.11 and 3.10, but in Daffodil 4.0.0 it output a long error message <img width="2555" height="1337" alt="Image" src="https://github.com/user-attachments/assets/5fb2ca2d-19fe-42a4-be87-9ddad49d7602"; /> ## Environment - Operating system(s): Ubuntu 24.04 - Browser/VS Code version: 1.5.0 SNAPSHOT - Extension version: <img width="484" height="247" alt="Image" src="https://github.com/user-attachments/assets/272a3eea-ba8d-448a-8a81-cfc9762440bc"; /> -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected]
