// Copyright 2026 肖其顿 (XIAO QI DUN)
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

package main

// displayWidth 计算字符串显示宽度
// 入参: s 字符串
// 返回: w 视觉宽度 (中字2, 英字1)
func displayWidth(s string) int {
	w := 0
	for _, r := range s {
		if r > 127 {
			w += 2
		} else {
			w += 1
		}
	}
	return w
}