2023:List Match (Value Extractor)

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A List Match is an extractor type that can be used when configuring several data extraction tools such as a Value Reader or Data Type. It is designed to return values matching one or more items in a defined list. The List Match extractor does not use or require regular expressions (regex) by default.

About

The List Match is one of the the simplest extractors used in Grooper. It is designed to return values matching one or more items in a defined list. This can be used to extract numbers, specific words, or full phrases contained within a document. A List Match extractor returns an exact match including any spaces, numbers, punctuation, or special characters.

To configure a List Match, you can input the desired extracted value as a Local Entry or reference a pre-configured Lexicon.

Unlike a Pattern Match, the List Match extractor does not use or require regular expressions by default, but regex can be enabled in the properties menu. Similar to a Pattern Match, Suffix and Prefix Patterns can be added to help anchor the expression and limit the amount of false positives extracted.

How To

Configuring With Local EntriesReferencing LexiconsProperties of a List Match

1. In your Node Tree, right click and create the desired item such as a Data Type or Value Reader.
2. Select the item created to bring up its configuration properties.
3. In the Value Reader tab, click the drop down list next to Extractor and select List Match.
4. Save and select the Tester tab and make sure the Expressions sub-tab is selected.
5. Under LOCAL ENTRIES, type the desired text to be extracted.
   • If needed, add a Prefix and Suffix Pattern to anchor your extraction.
6. Save and test your extraction.

1. In your Node Tree, right click and create the desired item such as a Data Type or Value Reader.
2. Select the item created to bring up its configuration properties.
3. In the Value Reader tab, click the drop down list next to Extractor and select List Match.
4. Save and select the Tester tab and make sure the Properties sub-tab is selected.
5. Click the arrow next to Vocabulary to access additional properties.
6. Click the ellipsis button next to the Included Lexicons property. This should open a new window where you can add pre-configured Lexicons.
7. In the new window, click through the Projects and Folders until you find the desired Lexicon. Click the check boxes next to the desired Lexicons.
8. Click OK to apply the Lexicon.
9. Save and test your extraction.

See Also

• Value Reader