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Sebastiaan van Stijn
44fce07069
Contains various performance optimisations. full diff: https://github.com/mattn/go-runewidth/compare/v0.0.13...v0.0.14 Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
29 lines
479 B
Go
29 lines
479 B
Go
//go:build windows && !appengine
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// +build windows,!appengine
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package runewidth
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import (
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"syscall"
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)
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var (
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kernel32 = syscall.NewLazyDLL("kernel32")
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procGetConsoleOutputCP = kernel32.NewProc("GetConsoleOutputCP")
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)
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// IsEastAsian return true if the current locale is CJK
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func IsEastAsian() bool {
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r1, _, _ := procGetConsoleOutputCP.Call()
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if r1 == 0 {
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return false
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}
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switch int(r1) {
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case 932, 51932, 936, 949, 950:
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return true
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}
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return false
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}
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