.. _auto_string_excludes:

*STRING EXCLUDES*
=================

Checks whether a string (haystack) does NOT contain a given substring (needle), returning a boolean-like scalar result. Use this worker in workflow branching or validation steps where a condition must confirm the absence of a specific pattern or token in a string.

When to use
-----------

Classification: **process**.

Tagged: ``contains``, ``excludes``, ``filter``, ``process``, ``scalar``, ``search``, ``string``, ``substring``.

Inputs
------

.. list-table::
   :header-rows: 1
   :widths: 20 20 20 20 20 20

   * - Label
     - ID
     - Type
     - Default
     - Required
     - Description
   * - Haystack
     - haystack
     - scalar
     - —
     - ✓
     - The source string to search within; provide any plain-text scalar value that will be tested for the absence of the needle substring.
   * - Needle
     - needle
     - scalar
     - —
     - ✓
     - The substring to look for in the haystack; if this string is NOT found in the haystack, the worker returns a truthy result.

Outputs
-------

.. list-table::
   :header-rows: 1
   :widths: 20 20 20 20

   * - Label
     - ID
     - Type
     - Description
   * - string_excludes_output_1
     - string_excludes_output_1
     - scalar
     - Boolean-like scalar (true/false or 1/0) indicating whether the haystack does NOT contain the needle; true means the needle is absent.

Disciplines
-----------

- data.dataset.transform

Runnable example
----------------

A runnable example is registered for this worker. Open the example workflow on the d3VIEW canvas: `/api/workflow/example?id=string_excludes <https://www.d3view.com/api/workflow/example?id=string_excludes>`_

.. raw:: html

   <hr style="margin-top:2em">
   <p style="font-size:11px;color:#888">
   Auto-generated from <code>transformation</code> schema. Worker id: <code>string_excludes</code>. Schema hash: <code>e16b899b310d</code>. Hand-curated docs in <code>workerexamples/</code> override this page when present.
   </p>