Open LLwanran opened 5 years ago
function formatValueByGapRule( gapRule, value, gap = ' ', range, isAdd = 1 ) { const arr = value ? value.split('') : []; let showValue = ''; const rule = []; gapRule.split('|').some((n, j) => { rule[j] = +n + (rule[j - 1] ? +rule[j - 1] : 0); }); let j = 0; arr.some((n, i) => { // Remove the excess part if (i > rule[rule.length - 1] - 1) { return; } if (i > 0 && i === rule[j]) { showValue = showValue + gap + n; j++; } else { showValue = showValue + '' + n; } }); let adapt = 0; rule.some((n, j) => { if (range === +n + 1 + j) { adapt = 1 * isAdd; } }); range = typeof range !== 'undefined' ? range === 0 ? 0 : range + adapt : showValue.length; return { value: showValue, range: range }; }
function formatValueByGapStep( step, value, gap = ' ', direction = 'right', range, isAdd = 1, oldValue = '' ) { if (value.length === 0) { return { value, range }; } const arr = value && value.split(''); let _range = range; let showValue = ''; if (direction === 'right') { for (let j = arr.length - 1, k = 0; j >= 0; j--, k++) { const m = arr[j]; showValue = k > 0 && k % step === 0 ? m + gap + showValue : m + '' + showValue; } if (isAdd === 1) { // 在添加的情况下,如果添加前字符串的长度减去新的字符串的长度为2,说明多了一个间隔符,需要调整range if (oldValue.length - showValue.length === -2) { _range = range + 1; } } else { // 在删除情况下,如果删除前字符串的长度减去新的字符串的长度为2,说明少了一个间隔符,需要调整range if (oldValue.length - showValue.length === 2) { _range = range - 1; } // 删除到最开始,range 保持 0 if (_range <= 0) { _range = 0; } } } else { arr.some((n, i) => { showValue = i > 0 && i % step === 0 ? showValue + gap + n : showValue + '' + n; }); const adapt = range % (step + 1) === 0 ? 1 * isAdd : 0; _range = typeof range !== 'undefined' ? range === 0 ? 0 : range + adapt : showValue.length; } return { value: showValue, range: _range }; }