Closed as not planned
Description
Is your feature request related to a problem? Please describe.
如果代码块中的代码特别长特别多的时候有时候想高亮一大片就特别麻烦，需要每行都写[!code ++] 或者[!code --]标记
现在的方式：
```js
foo // [!code ++]
foo // [!code ++]
foo // [!code ++]
foo // [!code ++]
foo // [!code ++]
foo // [!code ++]
foo // [!code ++]
foo // [!code ++]
foo // [!code ++]
bar // [!code ++]
bar // [!code ++]
bar // [!code ++]
bar // [!code ++]
bar // [!code ++]
```
希望的方式
```js
foo // [!code ++:start]
foo
foo
foo
foo
foo
foo
foo
foo
bar
bar
bar
bar
bar // [!code ++:end]
```
为什么会有这个想法是因为这是从实际的文档维护中遇到的麻烦的地方，并不是我无端的想法，希望可以把这个特性内置到vitepress中
Describe the solution you'd like
这里有一个解决方案
也是我之前提出的问题#4602，根据答案进行的演化
import { defineConfig } from 'vitepress'
export default defineConfig({
markdown: {
codeTransformers: [
{
span(span, i, j, line) {
if (
!['js', 'javascript', 'ts', 'typescript'].includes(
this.options.lang,
)
) {
return
}
const text = span.children[0]
if (!text || text.type !== 'text') return
const startMarker = '[!code ++:start]'
const endMarker = '[!code ++:end]'
const markers = [startMarker, endMarker]
if (markers.some((marker) => text.value.includes(marker))) {
this.addClassToHast(this.pre, 'has-diff')
this.addClassToHast(line, ['diff', 'add'])
}
if (text.value.includes(startMarker)) {
text.value = text.value.slice(0, -20)
this.insideHighlightBlock = true // 标记高亮开始
} else if (text.value.includes(endMarker)) {
text.value = text.value.slice(0, -20)
this.insideHighlightBlock = false // 标记高亮结束
}
},
line(line, i) {
if (this.insideHighlightBlock) {
// 从开始标记开始高亮
this.addClassToHast(line, ['diff', 'add'])
}
},
}
]
}
})上面的代码考虑的还是不够周全，但是想法和简单实现已经给出，如果觉得可行，请内置到viterepss中
Describe alternatives you've considered
No response
Additional context
No response
Validations
- Follow our Code of Conduct
- Read the docs.
- Read the Contributing Guidelines.
- Check that there isn't already an issue that asks for the same feature to avoid creating a duplicate.