When you add a step to a labeler asset, Data Quality prompts you to define a step with a regular expression or with a dictionary.
The following image shows the options that you configure when you define a step with a regular expression:
The regular expression options include the following properties:
Labeler mode.
Indicates the type of labeling operations to perform on the input data.
Add Step option.
Adds a step to the asset. A step describes a labeling operation that a mapping can apply to an input data field.
Up and Down options.
Moves a step that you select up or down within the step sequence.
Step sequence.
Defines the order in which a mapping applies each step to the input field at run time. The mapping performs labeling operations in the order that you specify.
Options name.
Identifies the type of regular expression in the step.
Test input field.
Contains the input data that the Secure Agent uses to test the steps in the labeler sequence.
Test output fields.
Contain the result of the test.
The test output fields contain the following data:
A copy of the input field data in which any value that conforms to the regular expression logic is replaced by the label that you specify.
A copy of the input field data.
Import file option.
Imports data to the test panel.
Step type.
Identifies the type of step to which the properties apply.
Regular expression type.
Specifies whether the step uses a built-in regular expression or a regular expression that you define.
A built-in regular expression is one that you select from a list that the asset provides. A custom regular expression is one that you define.
Regular Expression.
In Custom mode, the field contains the regular expression that you specify. You enter the regular expression logic in the field.
In Built-in mode, the Regular Expression Name field displays the name of the regular expression that you select. Additional fields display the regular expression logic and a description of the regular expression.
Label name.
Specifies the label that the step applies to the values in an input string.
You provide the label for a custom regular expression. A built-in regular expression has a default label. You can accept the default label or specify a label you prefer.
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