54 lines
1.3 KiB
TypeScript
54 lines
1.3 KiB
TypeScript
import { TAG_ESCAPED, TAG_UNESCAPED_REGEX } from './const'
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function escapeTag (value: string) {
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let processed = value
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for (let idx = 0; idx < TAG_ESCAPED.length; idx++) {
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processed = processed.replace(TAG_UNESCAPED_REGEX[idx], TAG_ESCAPED[idx])
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}
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return processed
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}
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export interface FormatArgs {
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tags?: Record<string, string>
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source?: string
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command: string
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params: string[]
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}
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export function format ({ tags, source, command, params }: FormatArgs) {
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const outs: string[] = []
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if (tags) {
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const tagsStr = []
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for (const [key, val] of Object.entries(tags).sort(([a], [b]) => a.localeCompare(b))) {
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if (val) tagsStr.push(`${key}=${escapeTag(val)}`)
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else tagsStr.push(key)
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}
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outs.push(`@${tagsStr.join(';')}`)
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}
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if (source) {
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outs.push(`:${source}`)
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}
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outs.push(command)
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if (params?.length) {
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const paramCopy = [...params]
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let last = paramCopy.pop()
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for (const param of paramCopy) {
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if (param.includes(' ')) throw new TypeError('non last params cannot have spaces')
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else if (param.startsWith(':')) throw new TypeError('non last params cannot start with colon')
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}
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outs.push(...paramCopy)
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if (!last || last.includes(' ') || last.startsWith(':')) {
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last = `:${last ?? ''}`
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}
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outs.push(last)
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}
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return outs.join(' ')
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}
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