119 lines
2.5 KiB
TypeScript
119 lines
2.5 KiB
TypeScript
/** 文本表示的数字取值范围，比如 : "2,3,5-8" 表示
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* () => 大于等于 小于等于
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* [] => 大于 小于
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*/
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export class MaskedNumberRange {
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maskedNumbers: any[]
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constructor(strRs: string) {
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let rs = []
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let strs = strRs.split(',')
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for (let str of strs) {
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if (str.trim() == '')
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continue
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let n = Number(str)
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let s_flag = 'in'
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let e_flag = 'in'
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if (!Number.isNaN(n)) {
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rs.push({ s: n, e: n, s_flag, e_flag })
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}
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else {
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let zys = str.split('-')
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if (zys.length != 2)
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continue
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if (zys[0].trim() == '' || zys[1].trim() == '')
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continue
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let start :any = zys[0]
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let end :any = zys[1]
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if (zys[0].trim().includes('(')) {
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s_flag = 'notIn'
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start = start.replaceAll('(', '')
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} else if (zys[0].trim().includes('[')) {
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s_flag = 'in'
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start = start.replaceAll('[', '')
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}
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if (start == 'x') {
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s_flag = 'infinite'
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}else{
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start = Number(start)
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}
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if (zys[1].trim().includes(')')) {
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e_flag = 'notIn'
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end = end.replaceAll(')', '')
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} else if (zys[1].trim().includes(']')) {
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e_flag = 'in'
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end = end.replaceAll(']', '')
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}
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if (end == 'x') {
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e_flag = 'infinite'
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}else{
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end = Number(end)
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}
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let s = start // Number(zys[0])
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let e = end //Number(zys[1])
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rs.push({ s: s, e: e, s_flag, e_flag })
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}
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}
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this.maskedNumbers = rs
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}
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/** 参数是否在给定范围内 */
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isInRange(r: number): boolean {
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let res = false
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for (let se of this.maskedNumbers) {
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if (se.s_flag == 'infinite') {
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// 无穷 不判断
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res = true
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} else if (se.s_flag == 'notIn') {
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if (r > se.s) {
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res = true
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}
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} else if (se.s_flag == 'in') {
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if (r >= se.s) {
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res = true
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}
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}
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if (res == true) {
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let res1 = false
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if (se.e_flag == 'infinite') {
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res1 = true
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} else if (se.e_flag == 'notIn') {
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if (r < se.e) {
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res1 = true
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}
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} else if (se.e_flag == 'in') {
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if (r <= se.e) {
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res1 = true
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}
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}
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res = res && res1
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}
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if(res == true){
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return true
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}
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// if (r > se.s && r < se.e)
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// return true
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}
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return res
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}
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}
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