mirror of
https://github.com/alrayyes/wiki.git
synced 2024-11-22 19:46:23 +00:00
135 lines
3.3 KiB
Markdown
135 lines
3.3 KiB
Markdown
---
|
||
title: Syntax Highlighting
|
||
tags:
|
||
- plugin/transformer
|
||
---
|
||
|
||
Syntax highlighting in Quartz is completely done at build-time. This means that Quartz only ships pre-calculated CSS to highlight the right words so there is no heavy client-side bundle that does the syntax highlighting.
|
||
|
||
And, unlike some client-side highlighters, it has a full TextMate parser grammar instead of using Regexes, allowing for highly accurate code highlighting.
|
||
|
||
In short, it generates HTML that looks exactly like your code in an editor like VS Code. Under the hood, it's powered by [Rehype Pretty Code](https://rehype-pretty-code.netlify.app/) which uses [Shiki](https://github.com/shikijs/shiki).
|
||
|
||
> [!warning]
|
||
> Syntax highlighting does have an impact on build speed if you have a lot of code snippets in your notes.
|
||
|
||
## Formatting
|
||
|
||
Text inside `backticks` on a line will be formatted like code.
|
||
|
||
````
|
||
```ts
|
||
export function trimPathSuffix(fp: string): string {
|
||
fp = clientSideSlug(fp)
|
||
let [cleanPath, anchor] = fp.split("#", 2)
|
||
anchor = anchor === undefined ? "" : "#" + anchor
|
||
|
||
return cleanPath + anchor
|
||
}
|
||
```
|
||
````
|
||
|
||
```ts
|
||
export function trimPathSuffix(fp: string): string {
|
||
fp = clientSideSlug(fp)
|
||
let [cleanPath, anchor] = fp.split("#", 2)
|
||
anchor = anchor === undefined ? "" : "#" + anchor
|
||
|
||
return cleanPath + anchor
|
||
}
|
||
```
|
||
|
||
### Titles
|
||
|
||
Add a file title to your code block, with text inside double quotes (`""`):
|
||
|
||
````
|
||
```js title="..."
|
||
|
||
```
|
||
````
|
||
|
||
```ts title="quartz/path.ts"
|
||
export function trimPathSuffix(fp: string): string {
|
||
fp = clientSideSlug(fp)
|
||
let [cleanPath, anchor] = fp.split("#", 2)
|
||
anchor = anchor === undefined ? "" : "#" + anchor
|
||
|
||
return cleanPath + anchor
|
||
}
|
||
```
|
||
|
||
### Line highlighting
|
||
|
||
Place a numeric range inside `{}`.
|
||
|
||
````
|
||
```js {1-3,4}
|
||
|
||
```
|
||
````
|
||
|
||
```ts {2-3,6}
|
||
export function trimPathSuffix(fp: string): string {
|
||
fp = clientSideSlug(fp)
|
||
let [cleanPath, anchor] = fp.split("#", 2)
|
||
anchor = anchor === undefined ? "" : "#" + anchor
|
||
|
||
return cleanPath + anchor
|
||
}
|
||
```
|
||
|
||
### Word highlighting
|
||
|
||
A series of characters, like a literal regex.
|
||
|
||
````
|
||
```js /useState/
|
||
const [age, setAge] = useState(50);
|
||
const [name, setName] = useState('Taylor');
|
||
```
|
||
````
|
||
|
||
```js /useState/
|
||
const [age, setAge] = useState(50)
|
||
const [name, setName] = useState("Taylor")
|
||
```
|
||
|
||
### Line numbers
|
||
|
||
Syntax highlighting has line numbers configured automatically. If you want to start line numbers at a specific number, use `showLineNumbers{number}`:
|
||
|
||
````
|
||
```js showLineNumbers{number}
|
||
|
||
```
|
||
````
|
||
|
||
```ts showLineNumbers{20}
|
||
export function trimPathSuffix(fp: string): string {
|
||
fp = clientSideSlug(fp)
|
||
let [cleanPath, anchor] = fp.split("#", 2)
|
||
anchor = anchor === undefined ? "" : "#" + anchor
|
||
|
||
return cleanPath + anchor
|
||
}
|
||
```
|
||
|
||
### Escaping code blocks
|
||
|
||
You can format a codeblock inside of a codeblock by wrapping it with another level of backtick fences that has one more backtick than the previous fence.
|
||
|
||
`````
|
||
````
|
||
```js /useState/
|
||
const [age, setAge] = useState(50);
|
||
const [name, setName] = useState('Taylor');
|
||
```
|
||
````
|
||
`````
|
||
|
||
## Customization
|
||
|
||
- Removing syntax highlighting: delete all usages of `Plugin.SyntaxHighlighting()` from `quartz.config.ts`.
|
||
- Style: By default, Quartz uses derivatives of the GitHub light and dark themes. You can customize the colours in the `quartz/styles/syntax.scss` file.
|
||
- Plugin: `quartz/plugins/transformers/syntax.ts`
|