vendor/github.com/mattn/go-runewidth/runewidth_windows.go


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package runewidth

import (
    "syscall"
)

var (
    kernel32               = syscall.NewLazyDLL("kernel32")
    procGetConsoleOutputCP = kernel32.NewProc("GetConsoleOutputCP")
)

// IsEastAsian return true if the current locale is CJK
func IsEastAsian() bool {
    r1, _, _ := procGetConsoleOutputCP.Call()
    if r1 == 0 {
        return false
    }

    switch int(r1) {
    case 932, 51932, 936, 949, 950:
        return true
    }

    return false
}