public class ParameterScriptProcessor
extends Object
implements ScriptProcessor

A ScriptProcessor which parses the script's input and output parameters from the script header.

SciJava's scripting framework supports specifying @Parameter-style inputs and outputs in a preamble. The format is a simplified version of the Java @Parameter annotation syntax. The following syntaxes are supported:

• #@ <type> <varName>
• #@ <type>(<attr1>=<value1>, ..., <attrN>=<valueN>) <varName>
• #@<IOType> <varName>
• #@<IOType> <type> <varName>
• #@<IOType>(<attr1>=<value1>, ..., <attrN>=<valueN>) <type> <varName>

Where:

• #@ - signals a special script processing instruction, so that the parameter line is ignored by the script engine itself.
• <IOType> - one of INPUT, OUTPUT, or BOTH.
• <varName> - the name of the input or output variable.
• <type> - the Java Class of the variable, or Object if none specified.
• <attr*> - an attribute key.
• <value*> - an attribute value.

See the @Parameter annotation for a list of valid attributes.

Here are a few examples:

• #@Dataset dataset
• #@double(type=OUTPUT) result
• #@both ImageDisplay display
• #@input(persist=false, visibility=INVISIBLE) boolean verbose
• #@output thing

Parameters will be parsed and filled just like @Parameter-annotated fields in Commands.