Merge commit '35dec7c96f7ee3eb17dd444f7067f0c776fb56ae'

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Bjørn Erik Pedersen
2023-12-04 15:24:01 +01:00
810 changed files with 24147 additions and 7766 deletions

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---
title: strings.ReplaceRE
linkTitle: replaceRE
description: Returns a string, replacing all occurrences of a regular expression with a replacement pattern.
categories: [functions]
description: Returns a copy of INPUT, replacing all occurrences of a regular expression with a replacement pattern.
categories: []
keywords: []
menu:
docs:
parent: functions
function:
action:
aliases: [replaceRE]
related:
- functions/strings/FindRE
- functions/strings/FindRESubmatch
- functions/strings/Replace
returnType: string
signatures: ['strings.ReplaceRE PATTERN REPLACEMENT INPUT [LIMIT]']
relatedFunctions:
- strings.FindRE
- strings.FindRESubmatch
- strings.Replace
- strings.ReplaceRE
aliases: [/functions/replacere]
---
By default, `replaceRE` replaces all matches. You can limit the number of matches with an optional LIMIT argument.
{{% readfile file="/functions/_common/regular-expressions.md" %}}
This example replaces two or more consecutive hyphens with a single hyphen:
{{% include "functions/_common/regular-expressions.md" %}}
```go-html-template
{{ $s := "a-b--c---d" }}
{{ replaceRE `(-{2,})` "-" $s }} → a-b-c-d
```
To limit the number of replacements to one:
Limit the number of replacements using the LIMIT argument:
```go-html-template
{{ $s := "a-b--c---d" }}
{{ replaceRE `(-{2,})` "-" $s 1 }} → a-b-c---d
```
You can use `$1`, `$2`, etc. within the replacement string to insert the groups captured within the regular expression:
Use `$1`, `$2`, etc. within the replacement string to insert the content of each capturing group within the regular expression:
```go-html-template
{{ $s := "http://gohugo.io/docs" }}