78 lines
1.7 KiB
TypeScript
78 lines
1.7 KiB
TypeScript
import { extractNumericPart } from '@/utils/numeric-input-parse'
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const CN_DIGIT: Record<string, number> = {
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零: 0,
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一: 1,
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二: 2,
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两: 2,
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三: 3,
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四: 4,
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五: 5,
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六: 6,
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七: 7,
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八: 8,
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九: 9,
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十: 10
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}
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/** 解析简单中文数字（一～十、十一等），无法解析返回 null */
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export function parseChineseNumeral(text: string): number | null {
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const v = (text || '').trim()
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if (!v) return null
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if (/^\d+$/.test(v)) {
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const n = Number(v)
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return Number.isFinite(n) ? n : null
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}
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if (v.length === 1 && CN_DIGIT[v] != null) {
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return CN_DIGIT[v]
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}
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if (v.startsWith('十')) {
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const rest = v.slice(1)
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if (!rest) return 10
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const tail = CN_DIGIT[rest]
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return tail != null ? 10 + tail : null
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}
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if (v.endsWith('十')) {
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const head = CN_DIGIT[v.slice(0, 1)]
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return head != null ? head * 10 : null
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}
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const shiIdx = v.indexOf('十')
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if (shiIdx > 0) {
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const head = CN_DIGIT[v.slice(0, shiIdx)]
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const tail = CN_DIGIT[v.slice(shiIdx + 1)] ?? 0
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if (head != null) return head * 10 + tail
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}
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return null
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}
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/** 解析胎次：阿拉伯数字、中文数字、「N胎」 */
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export function parseBirthOrder(value: string): number | null | undefined {
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const v = (value || '').trim()
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if (!v) return undefined
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if (/头胎|第一胎/.test(v)) return 1
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const num = extractNumericPart(v)
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if (num != null && num !== '') {
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const n = Number(num)
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return Number.isFinite(n) ? n : undefined
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}
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const taiMatch = v.match(/([一二三四五六七八九十两]+)胎/)
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if (taiMatch) {
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const n = parseChineseNumeral(taiMatch[1])
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if (n != null) return n
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}
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const cn = parseChineseNumeral(v)
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if (cn != null) return cn
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return undefined
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}
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