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CommandArgumentsDescriptionExample
break
<element_id>
Create a breakpoint, causing the debugger to stop when the element with the <element_id> name is created
break element.foo
clear
 Clear the screen
clear
condition
<breakpoint_id> <dfdl_expression>
Set a condition on a specified breakpoint. When a break point is encountered, the debugger only pauses if the DFDL expression evaluates to true
condition 1 dfdl:occursIndex() = 3
continue
 Continue parsing the input data until a breakpoint is encountered. At which point, pause parsing and display a debugger console to the user
continue
delete
<breakpoint_id>
Delete a specified breakpoint.
delete 1
disable
<type> <id>
Disable a specified breakpoint or display. To disable a breakpoint, set <type> to "breakpoint". To disable a display, set <type> to "display".
disable breakpoint 1
disable display 1
display
<debugger command>
Execute a debugger command every time a debugger console is displayed to the user
display info infoset
enable
<type> <id>
Enable a specified breakpoint or display. To enable a breakpoint, set <type> to "breakpoint". To enable a display, set <type> to "display".
enable breakpoint 1
enable display 1
eval
[type] <dfdl_expression>
Evaluate a DFDL expression. The <type> argument determines how to display the result of the dfdl_expression. <type> may be "string", "number", "boolean", or "node". If <type> is not give, then "node" is assumed.
eval number dfdl:occursIndex()
help
[<command>]
Display help. If a command is given, display specific help for that command and its subcommands.
help
help info
info
<item>...

Print various pieces of internal information to the console. The valid items are:

itemdescription
arrayIndexcurrent index of the element in an array
bitLimitcurrent bit limit
bitPositioncurrent bit position in the data
breakpointslist of breakpoints
childIndexcurrent child index
datainput data
discriminatorwhether or not a discriminator is set
displayslist of displays
groupIndexcurrent group index
infosetcurrent infoset
occursCountoccurs count
pathpath in the schema, using schema component designator
info data infoset
quit
 Immediately abort all processing.
quit
set
<setting> <value>

Change a debugger setting. The settings are:

SettingTypeDescription
dataLengthintegernumber of bytes to display when displaying input data. If negative, display all input data.
infosetLinesintegernumber of lines of the infoset to display. This displays the last X number of lines. If negative, display the entire infoset
removeHiddenbooleanwhether or not to remove hidden elements (via dfdl:hiddenGroupRef) when displaying the infoset
wrapLengthintegernumber of character at which to wrap data or infoset when printed to the console
set dataLength -1
set wrapLength 50
set removeHidden true
step
 Perform a single parse action, pause parsing, and display a debugger console to the user
step
undisplay
<display_id>
Remove a display created using the "display" command
undisplay 1