first commit

uni_modules/tdesign-uniapp/components/input/utils.js

@@ -0,0 +1,38 @@
+import { getCharacterLength, coalesce } from '../common/utils';
+
+
+export function getInnerMaxLen({
+  allowInputOverMax,
+  maxcharacter,
+  maxlength,
+  dataValue,
+  rawValue,
+  count,
+}) {
+  if (allowInputOverMax) {
+    return -1;
+  }
+  if (!maxcharacter || maxcharacter < 0) {
+    return maxlength;
+  }
+  if (!dataValue) {
+    return maxcharacter;
+  }
+
+
+  const { length: realCount } = getCharacterLength('maxcharacter', rawValue, Infinity);
+
+  if (realCount >= maxcharacter) {
+    return dataValue.length;
+  }
+
+  const { length: computedCount } = getCharacterLength(
+    'maxcharacter',
+    rawValue,
+    allowInputOverMax ? Infinity : maxcharacter,
+  );
+
+  const extra = (coalesce(count, computedCount)) - dataValue.length;
+
+  return maxcharacter - extra;
+}