---
title: custom | CodeWeaver Docs
description: API reference for codeweaver.engine.chunker.delimiters.custom
url: "https://docs.knitli.com/api/engine/chunker/delimiters/custom"
type: static
generatedAt: "2026-04-17T17:21:08.392Z"
---

# custom
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# `codeweaver.engine.chunker.delimiters.custom`
[Section titled “codeweaver.engine.chunker.delimiters.custom”](#codeweaverenginechunkerdelimiterscustom)
Language-specific delimiter patterns and customizations.

This module defines custom delimiter patterns for languages that have unique syntax not covered by their family patterns, or require overrides.

Example: >>> CUSTOM_PATTERNS[“bash”] [bash_while_pattern, bash_until_pattern, …]

## Function: `generate_rst_character_ranges`
[Section titled “Function: generate_rst_character_ranges”](#function-generate_rst_character_ranges)

**

```
generate_rst_character_ranges()
```

Generate a list of RST section underline characters based on a given character.

Args: character: A single character to generate underline patterns for.

Returns: A list of strings representing RST section underline patterns.

Example: >>> generate_rst_character_ranges(”=”) [’=’, ’==’, ’===’, ’====’, ’=====‘]

## Function: `get_custom_patterns`
[Section titled “Function: get_custom_patterns”](#function-get_custom_patterns)

**

```
get_custom_patterns()
```

Get custom delimiter patterns for a language.

Args: language: Language name (normalized to lowercase)

Returns: List of custom DelimiterPattern objects, or empty list if none

Example: >>> patterns = get_custom_patterns(“bash”) >>> len(patterns) 6