| Anand S Katti | 0954135 | 2020-01-29 15:54:01 +0530 | [diff] [blame] | 1 | // +build windows |
| 2 | // +build !appengine |
| 3 | |
| 4 | package runewidth |
| 5 | |
| 6 | import ( |
| 7 | "syscall" |
| 8 | ) |
| 9 | |
| 10 | var ( |
| 11 | kernel32 = syscall.NewLazyDLL("kernel32") |
| 12 | procGetConsoleOutputCP = kernel32.NewProc("GetConsoleOutputCP") |
| 13 | ) |
| 14 | |
| 15 | // IsEastAsian return true if the current locale is CJK |
| 16 | func IsEastAsian() bool { |
| 17 | r1, _, _ := procGetConsoleOutputCP.Call() |
| 18 | if r1 == 0 { |
| 19 | return false |
| 20 | } |
| 21 | |
| 22 | switch int(r1) { |
| 23 | case 932, 51932, 936, 949, 950: |
| 24 | return true |
| 25 | } |
| 26 | |
| 27 | return false |
| 28 | } |