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63 lines
2 KiB
Markdown
63 lines
2 KiB
Markdown
---
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title: relLangURL
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description: Returns a relative URL with a language prefix, if any.
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categories: [functions]
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menu:
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docs:
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parent: functions
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keywords: [urls, multilingual,i18n]
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signature: ["relLangURL INPUT"]
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---
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Use this function with both monolingual and multilingual configurations. The URL returned by this function depends on:
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- Whether the input begins with a slash
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- The `baseURL` in site configuration
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- The language prefix, if any
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In examples that follow, the project is multilingual with content in both Español (`es`) and English (`en`). The default language is Español. The returned values are from the English site.
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### Input does not begin with a slash
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If the input does not begin with a slash, the resulting URL will be correct regardless of the `baseURL`.
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With `baseURL = https://example.org/`
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```go-html-template
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{{ relLangURL "" }} → /en/
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{{ relLangURL "articles" }} → /en/articles
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{{ relLangURL "style.css" }} → /en/style.css
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```
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With `baseURL = https://example.org/docs/`
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```go-html-template
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{{ relLangURL "" }} → /docs/en/
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{{ relLangURL "articles" }} → /docs/en/articles
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{{ relLangURL "style.css" }} → /docs/en/style.css
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```
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### Input begins with a slash
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If the input begins with a slash, the resulting URL will be incorrect when the `baseURL` includes a subdirectory. With a leading slash, the function returns a URL relative to the protocol+host section of the `baseURL`.
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With `baseURL = https://example.org/`
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```go-html-template
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{{ relLangURL "/" }} → /en/
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{{ relLangURL "/articles" }} → /en/articles
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{{ relLangURL "/style.css" }} → /en/style.css
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```
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With `baseURL = https://example.org/docs/`
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```go-html-template
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{{ relLangURL "/" }} → /en/
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{{ relLangURL "/articles" }} → /en/articles
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{{ relLangURL "/style.css" }} → /en/style.css
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```
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{{% note %}}
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The last three examples are not desirable in most situations. As a best practice, never include a leading slash when using this function.
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{{% /note %}}
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