# SUBSTITUTE

#### Syntax <a href="#syntax.53" id="syntax.53"></a>

**SUBSTITUTE**(*text*; *oldText*; *newText; option*)

* *text* - the text in which to search for oldText - ***Value type**: text*
* *oldText* - the text which is to be found in parameter text - ***Value type**: text*
* *newText* - the text with which *oldText* should be replaced- ***Value type**: text*
* *option* - defines if the substitution should be done with a regular expression - ***Value type**: constant (optional, default: empty - i.e. plain text replacement)*

  Possible values are

  * *regex* - the replacement should be done using a regular expression for parameter *oldText*

#### Remarks <a href="#remarks.40" id="remarks.40"></a>

* The *text* parameter can also be a range with several texts. The SUBSTITUTE function is then applied to all these texts.&#x20;
* For the parameters *oldText* and *newText*, column ranges can be specified. The text replacement then takes place one after the other (from top to bottom) for all text pairs of these two parameters.
* The search is performed case-sensitive, so the found text within parameter *text* must have the same casing than the parameter *oldText*.

#### Examples <a href="#examples.17" id="examples.17"></a>

<figure><img src="/files/v2MMsxZ41mwMbRyA5zhd" alt=""><figcaption></figcaption></figure>

<figure><img src="/files/fN8UWHe6J9DY1MxmMo7O" alt=""><figcaption></figcaption></figure>

<figure><img src="/files/41a16HmFT4s3W2KfjoTV" alt=""><figcaption></figcaption></figure>

<figure><img src="/files/PXIQ91it4jEHX2JkCFTa" alt=""><figcaption></figcaption></figure>

<figure><img src="/files/Xt8kfrzkgulAs3cD94il" alt=""><figcaption></figcaption></figure>


---

# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://docs.nedyx.com/version-1.52-preview/clearlines-functions/text-functions/substitute.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.