32 lines
857 B
TypeScript
32 lines
857 B
TypeScript
// 解析班级批量输入：逗号/换行分隔；数字区间 "1-10" 生成 "1班".."10班"（上限 100 防呆）
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const MAX_RANGE_LENGTH = 100
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export const parseClassInput = (text: unknown): string[] => {
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if (typeof text !== 'string') return []
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const segments = text
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.split(/[,，\n;；]/)
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.map((segment) => segment.trim())
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.filter(Boolean)
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const result: string[] = []
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for (const segment of segments) {
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const rangeMatch = segment.match(/^(\d+)-(\d+)$/)
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if (rangeMatch) {
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const start = parseInt(rangeMatch[1], 10)
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const end = parseInt(rangeMatch[2], 10)
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if (start >= 1 && end >= start && end - start < MAX_RANGE_LENGTH) {
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for (let i = start; i <= end; i++) {
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result.push(`${i}班`)
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}
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continue
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}
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}
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result.push(segment)
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}
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return [...new Set(result)]
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} |