Source File
	eastasian.go

Belonging Package
	github.com/pancsta/tcell-v2

// Copyright 2025 The TCell Authors
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use 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 tcell

import (
	"os"
	"strings"

	"github.com/rivo/uniseg"
)

func init() {
	if rw := strings.ToLower(os.Getenv("RUNEWIDTH_EASTASIAN")); rw == "1" || rw == "true" || rw == "yes" {
		uniseg.EastAsianAmbiguousWidth = 2
	} else {
		uniseg.EastAsianAmbiguousWidth = 1
	}
}

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