### Field Selectors

Field selectors enable you to define which part of a record or search should be sent as part of the URL in the resource link.

Click Field Selectors in the left-hand sidebar.

Example Field Selectors are loaded initially, but you can edit or remove existing entries and create new entries as needed.

Name: this is used within URL construction and link text for the Resource. Substitute all spaces with an underline or hyphen.

Description: only seen by staff in the admin interface, so this is a brief note to clarify the name. Example: ISSN no hyphens

Definition: an Open URL meta tag

For additional information, refer to the Innovative Guide and Reference, Page #108100: Creating Field Selectors for OpenURL Elements.

Modify data with regular expression: Enter a regular expression in the Regular Expression text box. Use the format: <delimiter><match><delimiter><replace><delimiter>. For example, the following expression removes the hyphen from the ISSN field: /-// You can enter multiple regular expressions in one text box. Place an underscore ( _ ) between regular expressions to apply multiple regular expressions to the same data.

For additional information, refer to the Innovative Guide and Reference, Page #108035: Regular Expression.

Test regular expression with value: enter a regular expression and click apply to test if it is valid.

If you are going to use this field selector for a resource where it is being matched against coverage date, complete the following:

Normalize? To normalize the data from the record field before comparing it to the coverage database field, choose "Yes" for Normalize

Move coverage fields from Available to Selected.
The data from the record will be matched against data from the chosen coverage field that has been normalized according to system index rules.

Once completed save the new selector.

For additional information, refer to the Innovative Guide and Reference, Page #108100: Creating Field Selectors for OpenURL Elements

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