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Improved search documentation
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squidfunk
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@ -16,15 +16,15 @@ to [get access to Insiders][2].
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</div>
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<figcaption markdown="1">
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A demo is worth a thousand words — check it out at
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[squidfunk.github.io/mkdocs-material-insiders][3]
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The official documentation is built with Insiders
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[squidfunk.github.io/mkdocs-material][3]
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</figcaption>
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</figure>
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[1]: #how-sponsorship-works
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[2]: #how-to-become-a-sponsor
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[3]: https://squidfunk.github.io/mkdocs-material-insiders/
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[3]: https://squidfunk.github.io/mkdocs-material/
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## How sponsorship works
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@ -245,18 +245,8 @@ theme:
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- navigation.top
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```
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<figure markdown="1">
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[![back-to-top button][20]][20]
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<figcaption markdown="1">
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A demo is worth a thousand words — check it out at
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[squidfunk.github.io/mkdocs-material-insiders][21]
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</figcaption>
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</figure>
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[19]: https://github.com/squidfunk/mkdocs-material/blob/master/src/assets/stylesheets/main/layout/_top.scss
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[20]: ../assets/screenshots/back-to-top.png
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[21]: https://squidfunk.github.io/mkdocs-material-insiders/setup/setting-up-navigation/#back-to-top-button
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@ -151,23 +151,13 @@ theme:
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- search.suggest
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```
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Searching for ^^search su^^ yields ^^search suggestions^^ as a suggestion:
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Searching for [:octicons-search-24: ^^search su^^][9] yields ^^search suggestions^^ as a suggestion:
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<figure markdown="1">
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[![Search suggestions][9]][9]
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<figcaption markdown="1">
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A demo is worth a thousand words — check it out at
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[squidfunk.github.io/mkdocs-material-insiders][10]
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</figcaption>
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</figure>
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[![Search suggestions][10]][10]
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[8]: ../insiders/index.md
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[9]: ../assets/screenshots/search-suggestions.png
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[10]: https://squidfunk.github.io/mkdocs-material-insiders/reference/code-blocks/?q=code+high
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[9]: ?q=search+su
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[10]: ../assets/screenshots/search-suggestions.png
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### Search highlighting
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@ -186,22 +176,15 @@ theme:
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- search.highlight
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```
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Searching for ^^code highlighting^^ yields:
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Searching for [:octicons-search-24: ^^code highlighting^^][11] yields:
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<figure markdown="1">
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[![Search highlighting][11]][11]
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<figcaption markdown="1">
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A demo is worth a thousand words — check it out at
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[squidfunk.github.io/mkdocs-material-insiders][12]
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[![Search highlighting][12]][12]
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</figcaption>
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</figure>
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[11]: ../assets/screenshots/search-highlighting.png
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[12]: https://squidfunk.github.io/mkdocs-material-insiders/reference/code-blocks/?h=code+blocks
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[11]: ../reference/code-blocks.md?h=code+blocks
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[12]: ../assets/screenshots/search-highlighting.png
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### Search sharing
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@ -223,37 +206,26 @@ theme:
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When a user clicks the share button, the URL is automatically copied to the
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clipboard.
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<figure markdown="1">
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[![Search sharing][13]][13]
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<figcaption markdown="1">
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A demo is worth a thousand words — check it out at
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[squidfunk.github.io/mkdocs-material-insiders][14]
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</figcaption>
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</figure>
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[13]: ../assets/screenshots/search-share.png
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[14]: https://squidfunk.github.io/mkdocs-material-insiders/setup/setting-up-site-search/?q=share+search
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### Offline search
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[:octicons-file-code-24: Source][15] ·
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[:octicons-cpu-24: Plugin][16] · :octicons-beaker-24: Experimental
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[:octicons-file-code-24: Source][14] ·
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[:octicons-cpu-24: Plugin][15] · :octicons-beaker-24: Experimental
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If you distribute your documentation as `*.html` files, the built-in search
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will not work out-of-the-box due to the restrictions modern browsers impose for
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security reasons. This can be mitigated with the [localsearch][16] plugin in
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combination with @squidfunk's [iframe-worker][17] polyfill.
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security reasons. This can be mitigated with the [localsearch][15] plugin in
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combination with @squidfunk's [iframe-worker][16] polyfill.
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For setup instructions, refer to the [official documentation][18].
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For setup instructions, refer to the [official documentation][17].
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[15]: https://github.com/squidfunk/mkdocs-material/blob/master/src/base.html
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[16]: https://github.com/wilhelmer/mkdocs-localsearch/
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[17]: https://github.com/squidfunk/iframe-worker
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[18]: https://github.com/wilhelmer/mkdocs-localsearch#installation-material-v5
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[14]: https://github.com/squidfunk/mkdocs-material/blob/master/src/base.html
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[15]: https://github.com/wilhelmer/mkdocs-localsearch/
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[16]: https://github.com/squidfunk/iframe-worker
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[17]: https://github.com/wilhelmer/mkdocs-localsearch#installation-material-v5
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!!! tip
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@ -271,7 +243,7 @@ For setup instructions, refer to the [official documentation][18].
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In order to give specific pages a higher relevance in search, [lunr][4] supports
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page-specific boosts, which can be defined for each page by leveraging the
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[Metadata][19] extension:
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[Metadata][18] extension:
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``` bash
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---
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@ -283,7 +255,7 @@ search:
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...
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```
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[19]: ../../reference/meta-tags/#metadata
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[18]: ../../reference/meta-tags/#metadata
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## Customization
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@ -297,52 +269,45 @@ your needs.
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### Query transformation
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[:octicons-file-code-24: Source][20] ·
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[:octicons-file-code-24: Source][19] ·
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:octicons-mortar-board-24: Difficulty: _easy_
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When a user enters a query into the search box, the query is pre-processed
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before it is submitted to the search index. Material for MkDocs will apply the
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following transformations, which can be customized by [extending the theme][21]:
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following transformations, which can be customized by [extending the theme][20]:
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``` ts
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/**
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* Default transformation function
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*
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* 1. Search for terms in quotation marks and prepend a `+` modifier to denote
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* that the resulting document must contain all terms, converting the query
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* to an `AND` query (as opposed to the default `OR` behavior). While users
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* may expect terms enclosed in quotation marks to map to span queries, i.e.
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* for which order is important, `lunr` doesn't support them, so the best
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* we can do is to convert the terms to an `AND` query.
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*
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* 2. Replace control characters which are not located at the beginning of the
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* query or preceded by white space, or are not followed by a non-whitespace
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* character or are at the end of the query string. Furthermore, filter
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* unmatched quotation marks.
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*
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* 3. Trim excess whitespace from left and right.
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*
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* @param query - Query value
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*
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* @returns Transformed query value
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*/
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export function defaultTransform(query: string): string {
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return query
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.split(/"([^"]+)"/g) /* => 1 */
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.split(/"([^"]+)"/g) /* (1) */
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.map((terms, index) => index & 1
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? terms.replace(/^\b|^(?![^\x00-\x7F]|$)|\s+/g, " +")
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: terms
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)
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.join("")
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.replace(/"|(?:^|\s+)[*+\-:^~]+(?=\s+|$)/g, "") /* => 2 */
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.trim() /* => 3 */
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.replace(/"|(?:^|\s+)[*+\-:^~]+(?=\s+|$)/g, "") /* (2) */
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.trim() /* (3) */
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}
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```
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1. Search for terms in quotation marks and prepend a `+` modifier to denote
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that the resulting document must contain all terms, converting the query
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to an `AND` query (as opposed to the default `OR` behavior). While users
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may expect terms enclosed in quotation marks to map to span queries, i.e.
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for which order is important, `lunr` doesn't support them, so the best
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we can do is to convert the terms to an `AND` query.
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2. Replace control characters which are not located at the beginning of the
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query or preceded by white space, or are not followed by a non-whitespace
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character or are at the end of the query string. Furthermore, filter
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unmatched quotation marks.
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3. Trim excess whitespace from left and right.
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If you want to switch to the default behavior of the `mkdocs` and `readthedocs`
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themes, both of which don't transform the query prior to submission, or
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customize the `transform` function, you can do this by [overriding the
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`config` block][22]:
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`config` block][21]:
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``` html
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{% block config %}
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@ -360,19 +325,19 @@ customize the `transform` function, you can do this by [overriding the
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The `transform` function will receive the query string as entered by the user
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and must return the processed query string to be submitted to the search index.
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[20]: https://github.com/squidfunk/mkdocs-material/blob/master/src/assets/javascripts/integrations/search/transform/index.ts
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[21]: ../customization.md#extending-the-theme
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[22]: ../customization.md#overriding-blocks-recommended
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[19]: https://github.com/squidfunk/mkdocs-material/blob/master/src/assets/javascripts/integrations/search/transform/index.ts
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[20]: ../customization.md#extending-the-theme
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[21]: ../customization.md#overriding-blocks-recommended
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### Custom search
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[:octicons-file-code-24: Source][23] ·
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[:octicons-file-code-24: Source][22] ·
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:octicons-mortar-board-24: Difficulty: _challenging_
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Material for MkDocs implements search as part of a [web worker][24]. If you
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Material for MkDocs implements search as part of a [web worker][23]. If you
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want to switch the web worker with your own implementation, e.g. to submit
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search to an external service, you can add a custom JavaScript file to the
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`docs` directory and [override the `config` block][21]:
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`docs` directory and [override the `config` block][20]:
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``` html
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{% block config %}
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@ -390,8 +355,8 @@ format using _discriminated unions_, i.e. through the `type` property of the
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message. See the following interface definitions to learn about the message
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formats:
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- [:octicons-file-code-24: `SearchMessage`][25]
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- [:octicons-file-code-24: `SearchIndex` and `SearchResult`][26]
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- [:octicons-file-code-24: `SearchMessage`][24]
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- [:octicons-file-code-24: `SearchIndex` and `SearchResult`][25]
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The sequence and direction of messages is rather intuitive:
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@ -400,7 +365,7 @@ The sequence and direction of messages is rather intuitive:
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- :octicons-arrow-right-24: `SearchQueryMessage`
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- :octicons-arrow-left-24: `SearchResultMessage`
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[23]: https://github.com/squidfunk/mkdocs-material/blob/master/src/assets/javascripts/integrations/search/worker
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[24]: https://developer.mozilla.org/en-US/docs/Web/API/Web_Workers_API/Using_web_workers
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[25]: https://github.com/squidfunk/mkdocs-material/blob/master/src/assets/javascripts/integrations/search/worker/message/index.ts
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[26]: https://github.com/squidfunk/mkdocs-material/blob/master/src/assets/javascripts/integrations/search/_/index.ts
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[22]: https://github.com/squidfunk/mkdocs-material/blob/master/src/assets/javascripts/integrations/search/worker
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[23]: https://developer.mozilla.org/en-US/docs/Web/API/Web_Workers_API/Using_web_workers
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[24]: https://github.com/squidfunk/mkdocs-material/blob/master/src/assets/javascripts/integrations/search/worker/message/index.ts
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[25]: https://github.com/squidfunk/mkdocs-material/blob/master/src/assets/javascripts/integrations/search/_/index.ts
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