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28 lines
1.1 KiB
Markdown
28 lines
1.1 KiB
Markdown
---
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layout: default
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title: substitute_string
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parent: Processors
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grand_parent: Pipelines
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nav_order: 45
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---
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# substitute_string
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## Overview
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Matches a key's value against a regular expression and replaces all matches with a replacement string. `substitute_string` is part of [mutate string](https://github.com/opensearch-project/data-prepper/tree/main/data-prepper-plugins/mutate-string-processors#mutate-string-processors) processors.
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Option | Required | Type | Description
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:--- | :--- | :--- | :---
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entries | Yes | List | List of entries. Valid values are `source`, `from`, and `to`.
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source | N/A | N/A | The key to modify.
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from | N/A | N/A | The Regex String to be replaced. Special regex characters such as `[` and `]` must be escaped using `\\` when using double quotes and `\ ` when using single quotes. See [Java Patterns](https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/util/regex/Pattern.html) for more information.
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to | N/A | N/A | The String to be substituted for each match of `from`.
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<!---## Configuration
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Content will be added to this section.
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## Metrics
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Content will be added to this section.---> |