56 lines
1.4 KiB
TypeScript
56 lines
1.4 KiB
TypeScript
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import { Text } from '@codemirror/state'
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import { Marked } from '@ts-stack/markdown'
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import type * as LSP from 'vscode-languageserver-protocol'
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// takes a function and executes it after the wait time, if the function is called again before the wait time is up, the timer is reset
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export function deferExecution<T>(func: (args: T) => any, wait: number) {
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let timeout: ReturnType<typeof setTimeout> | null
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let latestArgs: T
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function later() {
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timeout = null
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func(latestArgs)
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}
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function deferred(args: T) {
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latestArgs = args
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if (timeout) {
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clearTimeout(timeout)
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}
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timeout = setTimeout(later, wait)
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}
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return deferred
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}
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export function posToOffset(
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doc: Text,
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pos: { line: number; character: number }
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): number | undefined {
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if (pos.line >= doc.lines) return
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const offset = doc.line(pos.line + 1).from + pos.character
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if (offset > doc.length) return
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return offset
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}
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export function offsetToPos(doc: Text, offset: number) {
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const line = doc.lineAt(offset)
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return {
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line: line.number - 1,
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character: offset - line.from,
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}
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}
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export function formatMarkdownContents(
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contents: LSP.MarkupContent | LSP.MarkedString | LSP.MarkedString[]
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): string {
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if (Array.isArray(contents)) {
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return contents.map((c) => formatMarkdownContents(c) + '\n\n').join('')
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} else if (typeof contents === 'string') {
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return Marked.parse(contents)
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} else {
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return Marked.parse(contents.value)
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}
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}
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