70 lines
1.9 KiB
TypeScript
70 lines
1.9 KiB
TypeScript
import type { LyricLine } from '@applemusic-like-lyrics/lyric'
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const TIME_TAG_REGEX = /\[(\d{2}):(\d{2})\.(\d{2,3})\]/g
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const META_TAG_REGEX = /^\[[a-z]+:/i
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export const parseLrc = (lrcContent: string): LyricLine[] => {
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if (!lrcContent) return []
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const lines = lrcContent.split(/\r?\n/)
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const result: LyricLine[] = []
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for (const line of lines) {
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const trimmedLine = line.trim()
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if (!trimmedLine) continue
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// 跳过元数据
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if (META_TAG_REGEX.test(trimmedLine)) continue
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const matches = [...trimmedLine.matchAll(TIME_TAG_REGEX)]
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if (matches.length === 0) continue
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// 提取歌词文本（移除所有时间标签）
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const text = trimmedLine.replace(TIME_TAG_REGEX, '').trim()
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// 允许空行（作为间奏），但通常我们忽略完全空的行，除非为了显示间隔
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if (!text) continue
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// 处理一行多个时间标签的情况（重复歌词）
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for (const match of matches) {
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const min = parseInt(match[1], 10)
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const sec = parseInt(match[2], 10)
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// 补齐毫秒
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const msStr = match[3].padEnd(3, '0').slice(0, 3)
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const ms = parseInt(msStr, 10)
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const startTime = min * 60 * 1000 + sec * 1000 + ms
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result.push({
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startTime,
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endTime: 0, // 稍后计算
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words: [{ word: text, startTime, endTime: 0, romanWord: '' }],
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translatedLyric: '',
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romanLyric: '',
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isBG: false,
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isDuet: false
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})
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}
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}
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// 按时间排序
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result.sort((a, b) => a.startTime - b.startTime)
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// 计算结束时间
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for (let i = 0; i < result.length; i++) {
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const line = result[i]
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const nextLine = result[i + 1]
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if (nextLine) {
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line.endTime = nextLine.startTime
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} else {
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line.endTime = line.startTime + 5000 // 最后一行默认 5秒
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}
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// 更新单词结束时间
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if (line.words.length > 0) {
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line.words[0].endTime = line.endTime
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}
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}
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return result
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}
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