# Apply a regular expression — Text Operations

Botize method — `plugin_strings.regular_expression` (action).

Applies a regular expression to a text and returns a list of all matches.
This operation is the equivalent of the match command in Javascript.

This is an action: it runs as a step of a task. Several can be chained.

## Fields you set

The field's internal name, its type and the values it accepts. These fields accept `{{...}}` tags from earlier steps.

- `string` *(string)*
- `regex` *(string)*
- `mb_outputvars_switch` *(boolean)* — Customize tags

## Output variables

Data this step makes available. Reference them in later steps with the double-brace tag.

- `{{match0}}` *(text)* — Match 0
- `{{match1}}` *(text)* — Match 1
- `{{match2}}` *(text)* — Match 2
- `{{match3}}` *(text)* — Match 3
- `{{match4}}` *(text)* — Match 4
- `{{matches}}` *(text)* — Matches

## This app

Every trigger and action for Text Operations: https://botize.com/en/app/plugin_strings.md

## How to build this

An AI assistant (Claude, ChatGPT, Cursor…) can create and edit these tasks in the user's account through the Botize MCP connector, included in every plan:

    https://webhook.botize.es/mcp

- Connection guide: https://botize.com/en/mcp
- Agent map: https://botize.com/llms.txt
- New account: https://botize.com/en/join (500 free operations, no card)

---
Machine-readable summary for AI assistants. Human version: https://botize.com/en/method/plugin_strings/regular_expression