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34 lines
995 B
TypeScript
34 lines
995 B
TypeScript
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/**
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* Adapted from CodeMirror 6 (@codemirror/autocomplete), licensed under the MIT license:
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* https://github.com/codemirror/autocomplete/blob/08f63add9f470a032d3802a4599caa86c75de5cb/src/snippet.ts#L29-L45
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*/
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import { indentUnit } from '@codemirror/language'
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import { EditorState } from '@codemirror/state'
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// apply correct indentation to passed lines
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export function prepareLines(
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lines: (string | null)[],
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state: EditorState,
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pos: number
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) {
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const text = []
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const lineStart = [pos]
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const lineObj = state.doc.lineAt(pos)
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const baseIndent = /^\s*/.exec(lineObj.text)![0]
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for (let line of lines) {
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if (line === null) continue
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if (text.length) {
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let indent = baseIndent
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const tabs = /^\t*/.exec(line)![0].length
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for (let i = 0; i < tabs; i++) indent += state.facet(indentUnit)
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lineStart.push(pos + indent.length - tabs)
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line = indent + line.slice(tabs)
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}
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text.push(line)
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pos += line.length + 1
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}
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return text.join('\n')
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}
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