mirror of
https://github.com/letic/terraform-provider-google.git
synced 2024-09-06 09:06:44 +00:00
961c878e0d
Switch to using Go modules. This migrates our vendor.json to use Go 1.11's modules system, and replaces the vendor folder with the output of go mod vendor. The vendored code should remain basically the same; I believe some tree shaking of packages and support scripts/licenses/READMEs/etc. happened. This also fixes Travis and our Makefile to no longer use govendor.
885 lines
20 KiB
Go
885 lines
20 KiB
Go
// +build windows
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// +build !appengine
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package colorable
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import (
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"bytes"
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"io"
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"math"
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"os"
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"strconv"
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"strings"
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"syscall"
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"unsafe"
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"github.com/mattn/go-isatty"
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)
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const (
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foregroundBlue = 0x1
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foregroundGreen = 0x2
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foregroundRed = 0x4
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foregroundIntensity = 0x8
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foregroundMask = (foregroundRed | foregroundBlue | foregroundGreen | foregroundIntensity)
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backgroundBlue = 0x10
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backgroundGreen = 0x20
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backgroundRed = 0x40
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backgroundIntensity = 0x80
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backgroundMask = (backgroundRed | backgroundBlue | backgroundGreen | backgroundIntensity)
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)
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type wchar uint16
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type short int16
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type dword uint32
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type word uint16
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type coord struct {
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x short
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y short
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}
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type smallRect struct {
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left short
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top short
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right short
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bottom short
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}
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type consoleScreenBufferInfo struct {
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size coord
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cursorPosition coord
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attributes word
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window smallRect
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maximumWindowSize coord
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}
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type consoleCursorInfo struct {
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size dword
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visible int32
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}
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var (
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kernel32 = syscall.NewLazyDLL("kernel32.dll")
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procGetConsoleScreenBufferInfo = kernel32.NewProc("GetConsoleScreenBufferInfo")
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procSetConsoleTextAttribute = kernel32.NewProc("SetConsoleTextAttribute")
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procSetConsoleCursorPosition = kernel32.NewProc("SetConsoleCursorPosition")
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procFillConsoleOutputCharacter = kernel32.NewProc("FillConsoleOutputCharacterW")
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procFillConsoleOutputAttribute = kernel32.NewProc("FillConsoleOutputAttribute")
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procGetConsoleCursorInfo = kernel32.NewProc("GetConsoleCursorInfo")
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procSetConsoleCursorInfo = kernel32.NewProc("SetConsoleCursorInfo")
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procSetConsoleTitle = kernel32.NewProc("SetConsoleTitleW")
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)
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// Writer provide colorable Writer to the console
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type Writer struct {
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out io.Writer
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handle syscall.Handle
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oldattr word
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oldpos coord
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}
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// NewColorable return new instance of Writer which handle escape sequence from File.
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func NewColorable(file *os.File) io.Writer {
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if file == nil {
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panic("nil passed instead of *os.File to NewColorable()")
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}
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if isatty.IsTerminal(file.Fd()) {
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var csbi consoleScreenBufferInfo
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handle := syscall.Handle(file.Fd())
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procGetConsoleScreenBufferInfo.Call(uintptr(handle), uintptr(unsafe.Pointer(&csbi)))
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return &Writer{out: file, handle: handle, oldattr: csbi.attributes, oldpos: coord{0, 0}}
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}
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return file
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}
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// NewColorableStdout return new instance of Writer which handle escape sequence for stdout.
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func NewColorableStdout() io.Writer {
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return NewColorable(os.Stdout)
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}
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// NewColorableStderr return new instance of Writer which handle escape sequence for stderr.
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func NewColorableStderr() io.Writer {
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return NewColorable(os.Stderr)
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}
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var color256 = map[int]int{
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0: 0x000000,
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1: 0x800000,
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2: 0x008000,
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3: 0x808000,
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4: 0x000080,
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5: 0x800080,
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6: 0x008080,
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7: 0xc0c0c0,
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8: 0x808080,
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9: 0xff0000,
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10: 0x00ff00,
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11: 0xffff00,
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12: 0x0000ff,
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13: 0xff00ff,
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14: 0x00ffff,
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15: 0xffffff,
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16: 0x000000,
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17: 0x00005f,
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18: 0x000087,
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19: 0x0000af,
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20: 0x0000d7,
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21: 0x0000ff,
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22: 0x005f00,
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23: 0x005f5f,
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24: 0x005f87,
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25: 0x005faf,
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26: 0x005fd7,
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27: 0x005fff,
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28: 0x008700,
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29: 0x00875f,
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30: 0x008787,
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31: 0x0087af,
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32: 0x0087d7,
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33: 0x0087ff,
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34: 0x00af00,
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35: 0x00af5f,
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36: 0x00af87,
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37: 0x00afaf,
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38: 0x00afd7,
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39: 0x00afff,
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40: 0x00d700,
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41: 0x00d75f,
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42: 0x00d787,
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43: 0x00d7af,
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44: 0x00d7d7,
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45: 0x00d7ff,
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46: 0x00ff00,
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47: 0x00ff5f,
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48: 0x00ff87,
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49: 0x00ffaf,
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50: 0x00ffd7,
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51: 0x00ffff,
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52: 0x5f0000,
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53: 0x5f005f,
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54: 0x5f0087,
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55: 0x5f00af,
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56: 0x5f00d7,
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57: 0x5f00ff,
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58: 0x5f5f00,
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59: 0x5f5f5f,
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60: 0x5f5f87,
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61: 0x5f5faf,
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62: 0x5f5fd7,
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63: 0x5f5fff,
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64: 0x5f8700,
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65: 0x5f875f,
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66: 0x5f8787,
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67: 0x5f87af,
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68: 0x5f87d7,
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69: 0x5f87ff,
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70: 0x5faf00,
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71: 0x5faf5f,
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72: 0x5faf87,
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73: 0x5fafaf,
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74: 0x5fafd7,
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75: 0x5fafff,
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76: 0x5fd700,
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77: 0x5fd75f,
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78: 0x5fd787,
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79: 0x5fd7af,
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80: 0x5fd7d7,
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81: 0x5fd7ff,
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82: 0x5fff00,
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83: 0x5fff5f,
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84: 0x5fff87,
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85: 0x5fffaf,
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86: 0x5fffd7,
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87: 0x5fffff,
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88: 0x870000,
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89: 0x87005f,
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90: 0x870087,
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91: 0x8700af,
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92: 0x8700d7,
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93: 0x8700ff,
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94: 0x875f00,
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95: 0x875f5f,
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96: 0x875f87,
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97: 0x875faf,
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98: 0x875fd7,
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99: 0x875fff,
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100: 0x878700,
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101: 0x87875f,
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102: 0x878787,
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103: 0x8787af,
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104: 0x8787d7,
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105: 0x8787ff,
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106: 0x87af00,
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107: 0x87af5f,
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108: 0x87af87,
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109: 0x87afaf,
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110: 0x87afd7,
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111: 0x87afff,
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112: 0x87d700,
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113: 0x87d75f,
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114: 0x87d787,
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115: 0x87d7af,
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116: 0x87d7d7,
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117: 0x87d7ff,
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118: 0x87ff00,
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119: 0x87ff5f,
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120: 0x87ff87,
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121: 0x87ffaf,
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122: 0x87ffd7,
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123: 0x87ffff,
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124: 0xaf0000,
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125: 0xaf005f,
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126: 0xaf0087,
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127: 0xaf00af,
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128: 0xaf00d7,
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129: 0xaf00ff,
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130: 0xaf5f00,
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131: 0xaf5f5f,
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132: 0xaf5f87,
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133: 0xaf5faf,
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134: 0xaf5fd7,
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135: 0xaf5fff,
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136: 0xaf8700,
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137: 0xaf875f,
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138: 0xaf8787,
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139: 0xaf87af,
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140: 0xaf87d7,
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141: 0xaf87ff,
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142: 0xafaf00,
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143: 0xafaf5f,
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144: 0xafaf87,
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145: 0xafafaf,
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146: 0xafafd7,
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147: 0xafafff,
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148: 0xafd700,
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149: 0xafd75f,
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150: 0xafd787,
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151: 0xafd7af,
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152: 0xafd7d7,
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153: 0xafd7ff,
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154: 0xafff00,
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155: 0xafff5f,
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156: 0xafff87,
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157: 0xafffaf,
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158: 0xafffd7,
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159: 0xafffff,
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160: 0xd70000,
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161: 0xd7005f,
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162: 0xd70087,
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163: 0xd700af,
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164: 0xd700d7,
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165: 0xd700ff,
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166: 0xd75f00,
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167: 0xd75f5f,
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168: 0xd75f87,
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169: 0xd75faf,
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170: 0xd75fd7,
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171: 0xd75fff,
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172: 0xd78700,
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173: 0xd7875f,
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174: 0xd78787,
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175: 0xd787af,
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176: 0xd787d7,
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177: 0xd787ff,
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178: 0xd7af00,
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179: 0xd7af5f,
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180: 0xd7af87,
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181: 0xd7afaf,
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182: 0xd7afd7,
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183: 0xd7afff,
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184: 0xd7d700,
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185: 0xd7d75f,
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186: 0xd7d787,
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187: 0xd7d7af,
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188: 0xd7d7d7,
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189: 0xd7d7ff,
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190: 0xd7ff00,
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191: 0xd7ff5f,
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192: 0xd7ff87,
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193: 0xd7ffaf,
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194: 0xd7ffd7,
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195: 0xd7ffff,
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196: 0xff0000,
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197: 0xff005f,
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198: 0xff0087,
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199: 0xff00af,
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200: 0xff00d7,
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201: 0xff00ff,
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202: 0xff5f00,
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203: 0xff5f5f,
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204: 0xff5f87,
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205: 0xff5faf,
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206: 0xff5fd7,
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207: 0xff5fff,
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208: 0xff8700,
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209: 0xff875f,
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210: 0xff8787,
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211: 0xff87af,
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212: 0xff87d7,
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213: 0xff87ff,
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214: 0xffaf00,
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215: 0xffaf5f,
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216: 0xffaf87,
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217: 0xffafaf,
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218: 0xffafd7,
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219: 0xffafff,
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220: 0xffd700,
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221: 0xffd75f,
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222: 0xffd787,
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223: 0xffd7af,
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224: 0xffd7d7,
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225: 0xffd7ff,
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226: 0xffff00,
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227: 0xffff5f,
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228: 0xffff87,
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229: 0xffffaf,
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230: 0xffffd7,
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231: 0xffffff,
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232: 0x080808,
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233: 0x121212,
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234: 0x1c1c1c,
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235: 0x262626,
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236: 0x303030,
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237: 0x3a3a3a,
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238: 0x444444,
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239: 0x4e4e4e,
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240: 0x585858,
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241: 0x626262,
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242: 0x6c6c6c,
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243: 0x767676,
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244: 0x808080,
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245: 0x8a8a8a,
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246: 0x949494,
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247: 0x9e9e9e,
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248: 0xa8a8a8,
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249: 0xb2b2b2,
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250: 0xbcbcbc,
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251: 0xc6c6c6,
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252: 0xd0d0d0,
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253: 0xdadada,
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254: 0xe4e4e4,
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255: 0xeeeeee,
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}
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// `\033]0;TITLESTR\007`
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func doTitleSequence(er *bytes.Reader) error {
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var c byte
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var err error
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c, err = er.ReadByte()
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if err != nil {
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return err
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}
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if c != '0' && c != '2' {
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return nil
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}
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c, err = er.ReadByte()
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if err != nil {
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return err
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}
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if c != ';' {
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return nil
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}
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title := make([]byte, 0, 80)
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for {
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c, err = er.ReadByte()
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if err != nil {
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return err
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}
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if c == 0x07 || c == '\n' {
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break
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}
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title = append(title, c)
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}
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if len(title) > 0 {
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title8, err := syscall.UTF16PtrFromString(string(title))
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if err == nil {
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procSetConsoleTitle.Call(uintptr(unsafe.Pointer(title8)))
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}
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}
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return nil
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}
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// Write write data on console
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func (w *Writer) Write(data []byte) (n int, err error) {
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var csbi consoleScreenBufferInfo
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procGetConsoleScreenBufferInfo.Call(uintptr(w.handle), uintptr(unsafe.Pointer(&csbi)))
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er := bytes.NewReader(data)
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var bw [1]byte
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loop:
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for {
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c1, err := er.ReadByte()
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if err != nil {
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break loop
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}
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if c1 != 0x1b {
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bw[0] = c1
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w.out.Write(bw[:])
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continue
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}
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c2, err := er.ReadByte()
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if err != nil {
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break loop
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}
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if c2 == ']' {
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if err := doTitleSequence(er); err != nil {
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break loop
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}
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continue
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}
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if c2 != 0x5b {
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continue
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}
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var buf bytes.Buffer
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var m byte
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for {
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c, err := er.ReadByte()
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if err != nil {
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break loop
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}
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if ('a' <= c && c <= 'z') || ('A' <= c && c <= 'Z') || c == '@' {
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m = c
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break
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}
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buf.Write([]byte(string(c)))
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}
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switch m {
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case 'A':
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n, err = strconv.Atoi(buf.String())
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if err != nil {
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continue
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}
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procGetConsoleScreenBufferInfo.Call(uintptr(w.handle), uintptr(unsafe.Pointer(&csbi)))
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csbi.cursorPosition.y -= short(n)
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procSetConsoleCursorPosition.Call(uintptr(w.handle), *(*uintptr)(unsafe.Pointer(&csbi.cursorPosition)))
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case 'B':
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n, err = strconv.Atoi(buf.String())
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if err != nil {
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continue
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}
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procGetConsoleScreenBufferInfo.Call(uintptr(w.handle), uintptr(unsafe.Pointer(&csbi)))
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csbi.cursorPosition.y += short(n)
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procSetConsoleCursorPosition.Call(uintptr(w.handle), *(*uintptr)(unsafe.Pointer(&csbi.cursorPosition)))
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case 'C':
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n, err = strconv.Atoi(buf.String())
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if err != nil {
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continue
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}
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procGetConsoleScreenBufferInfo.Call(uintptr(w.handle), uintptr(unsafe.Pointer(&csbi)))
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csbi.cursorPosition.x += short(n)
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procSetConsoleCursorPosition.Call(uintptr(w.handle), *(*uintptr)(unsafe.Pointer(&csbi.cursorPosition)))
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case 'D':
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n, err = strconv.Atoi(buf.String())
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if err != nil {
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continue
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}
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procGetConsoleScreenBufferInfo.Call(uintptr(w.handle), uintptr(unsafe.Pointer(&csbi)))
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csbi.cursorPosition.x -= short(n)
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procSetConsoleCursorPosition.Call(uintptr(w.handle), *(*uintptr)(unsafe.Pointer(&csbi.cursorPosition)))
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case 'E':
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n, err = strconv.Atoi(buf.String())
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if err != nil {
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continue
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}
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procGetConsoleScreenBufferInfo.Call(uintptr(w.handle), uintptr(unsafe.Pointer(&csbi)))
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csbi.cursorPosition.x = 0
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csbi.cursorPosition.y += short(n)
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procSetConsoleCursorPosition.Call(uintptr(w.handle), *(*uintptr)(unsafe.Pointer(&csbi.cursorPosition)))
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case 'F':
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n, err = strconv.Atoi(buf.String())
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if err != nil {
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continue
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}
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procGetConsoleScreenBufferInfo.Call(uintptr(w.handle), uintptr(unsafe.Pointer(&csbi)))
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csbi.cursorPosition.x = 0
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csbi.cursorPosition.y -= short(n)
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procSetConsoleCursorPosition.Call(uintptr(w.handle), *(*uintptr)(unsafe.Pointer(&csbi.cursorPosition)))
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case 'G':
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n, err = strconv.Atoi(buf.String())
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if err != nil {
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continue
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}
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procGetConsoleScreenBufferInfo.Call(uintptr(w.handle), uintptr(unsafe.Pointer(&csbi)))
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csbi.cursorPosition.x = short(n - 1)
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procSetConsoleCursorPosition.Call(uintptr(w.handle), *(*uintptr)(unsafe.Pointer(&csbi.cursorPosition)))
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case 'H', 'f':
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procGetConsoleScreenBufferInfo.Call(uintptr(w.handle), uintptr(unsafe.Pointer(&csbi)))
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if buf.Len() > 0 {
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token := strings.Split(buf.String(), ";")
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switch len(token) {
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case 1:
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|
n1, err := strconv.Atoi(token[0])
|
|
if err != nil {
|
|
continue
|
|
}
|
|
csbi.cursorPosition.y = short(n1 - 1)
|
|
case 2:
|
|
n1, err := strconv.Atoi(token[0])
|
|
if err != nil {
|
|
continue
|
|
}
|
|
n2, err := strconv.Atoi(token[1])
|
|
if err != nil {
|
|
continue
|
|
}
|
|
csbi.cursorPosition.x = short(n2 - 1)
|
|
csbi.cursorPosition.y = short(n1 - 1)
|
|
}
|
|
} else {
|
|
csbi.cursorPosition.y = 0
|
|
}
|
|
procSetConsoleCursorPosition.Call(uintptr(w.handle), *(*uintptr)(unsafe.Pointer(&csbi.cursorPosition)))
|
|
case 'J':
|
|
n := 0
|
|
if buf.Len() > 0 {
|
|
n, err = strconv.Atoi(buf.String())
|
|
if err != nil {
|
|
continue
|
|
}
|
|
}
|
|
var count, written dword
|
|
var cursor coord
|
|
procGetConsoleScreenBufferInfo.Call(uintptr(w.handle), uintptr(unsafe.Pointer(&csbi)))
|
|
switch n {
|
|
case 0:
|
|
cursor = coord{x: csbi.cursorPosition.x, y: csbi.cursorPosition.y}
|
|
count = dword(csbi.size.x - csbi.cursorPosition.x + (csbi.size.y-csbi.cursorPosition.y)*csbi.size.x)
|
|
case 1:
|
|
cursor = coord{x: csbi.window.left, y: csbi.window.top}
|
|
count = dword(csbi.size.x - csbi.cursorPosition.x + (csbi.window.top-csbi.cursorPosition.y)*csbi.size.x)
|
|
case 2:
|
|
cursor = coord{x: csbi.window.left, y: csbi.window.top}
|
|
count = dword(csbi.size.x - csbi.cursorPosition.x + (csbi.size.y-csbi.cursorPosition.y)*csbi.size.x)
|
|
}
|
|
procFillConsoleOutputCharacter.Call(uintptr(w.handle), uintptr(' '), uintptr(count), *(*uintptr)(unsafe.Pointer(&cursor)), uintptr(unsafe.Pointer(&written)))
|
|
procFillConsoleOutputAttribute.Call(uintptr(w.handle), uintptr(csbi.attributes), uintptr(count), *(*uintptr)(unsafe.Pointer(&cursor)), uintptr(unsafe.Pointer(&written)))
|
|
case 'K':
|
|
n := 0
|
|
if buf.Len() > 0 {
|
|
n, err = strconv.Atoi(buf.String())
|
|
if err != nil {
|
|
continue
|
|
}
|
|
}
|
|
procGetConsoleScreenBufferInfo.Call(uintptr(w.handle), uintptr(unsafe.Pointer(&csbi)))
|
|
var cursor coord
|
|
var count, written dword
|
|
switch n {
|
|
case 0:
|
|
cursor = coord{x: csbi.cursorPosition.x + 1, y: csbi.cursorPosition.y}
|
|
count = dword(csbi.size.x - csbi.cursorPosition.x - 1)
|
|
case 1:
|
|
cursor = coord{x: csbi.window.left, y: csbi.window.top + csbi.cursorPosition.y}
|
|
count = dword(csbi.size.x - csbi.cursorPosition.x)
|
|
case 2:
|
|
cursor = coord{x: csbi.window.left, y: csbi.window.top + csbi.cursorPosition.y}
|
|
count = dword(csbi.size.x)
|
|
}
|
|
procFillConsoleOutputCharacter.Call(uintptr(w.handle), uintptr(' '), uintptr(count), *(*uintptr)(unsafe.Pointer(&cursor)), uintptr(unsafe.Pointer(&written)))
|
|
procFillConsoleOutputAttribute.Call(uintptr(w.handle), uintptr(csbi.attributes), uintptr(count), *(*uintptr)(unsafe.Pointer(&cursor)), uintptr(unsafe.Pointer(&written)))
|
|
case 'm':
|
|
procGetConsoleScreenBufferInfo.Call(uintptr(w.handle), uintptr(unsafe.Pointer(&csbi)))
|
|
attr := csbi.attributes
|
|
cs := buf.String()
|
|
if cs == "" {
|
|
procSetConsoleTextAttribute.Call(uintptr(w.handle), uintptr(w.oldattr))
|
|
continue
|
|
}
|
|
token := strings.Split(cs, ";")
|
|
for i := 0; i < len(token); i++ {
|
|
ns := token[i]
|
|
if n, err = strconv.Atoi(ns); err == nil {
|
|
switch {
|
|
case n == 0 || n == 100:
|
|
attr = w.oldattr
|
|
case 1 <= n && n <= 5:
|
|
attr |= foregroundIntensity
|
|
case n == 7:
|
|
attr = ((attr & foregroundMask) << 4) | ((attr & backgroundMask) >> 4)
|
|
case n == 22 || n == 25:
|
|
attr |= foregroundIntensity
|
|
case n == 27:
|
|
attr = ((attr & foregroundMask) << 4) | ((attr & backgroundMask) >> 4)
|
|
case 30 <= n && n <= 37:
|
|
attr &= backgroundMask
|
|
if (n-30)&1 != 0 {
|
|
attr |= foregroundRed
|
|
}
|
|
if (n-30)&2 != 0 {
|
|
attr |= foregroundGreen
|
|
}
|
|
if (n-30)&4 != 0 {
|
|
attr |= foregroundBlue
|
|
}
|
|
case n == 38: // set foreground color.
|
|
if i < len(token)-2 && (token[i+1] == "5" || token[i+1] == "05") {
|
|
if n256, err := strconv.Atoi(token[i+2]); err == nil {
|
|
if n256foreAttr == nil {
|
|
n256setup()
|
|
}
|
|
attr &= backgroundMask
|
|
attr |= n256foreAttr[n256]
|
|
i += 2
|
|
}
|
|
} else {
|
|
attr = attr & (w.oldattr & backgroundMask)
|
|
}
|
|
case n == 39: // reset foreground color.
|
|
attr &= backgroundMask
|
|
attr |= w.oldattr & foregroundMask
|
|
case 40 <= n && n <= 47:
|
|
attr &= foregroundMask
|
|
if (n-40)&1 != 0 {
|
|
attr |= backgroundRed
|
|
}
|
|
if (n-40)&2 != 0 {
|
|
attr |= backgroundGreen
|
|
}
|
|
if (n-40)&4 != 0 {
|
|
attr |= backgroundBlue
|
|
}
|
|
case n == 48: // set background color.
|
|
if i < len(token)-2 && token[i+1] == "5" {
|
|
if n256, err := strconv.Atoi(token[i+2]); err == nil {
|
|
if n256backAttr == nil {
|
|
n256setup()
|
|
}
|
|
attr &= foregroundMask
|
|
attr |= n256backAttr[n256]
|
|
i += 2
|
|
}
|
|
} else {
|
|
attr = attr & (w.oldattr & foregroundMask)
|
|
}
|
|
case n == 49: // reset foreground color.
|
|
attr &= foregroundMask
|
|
attr |= w.oldattr & backgroundMask
|
|
case 90 <= n && n <= 97:
|
|
attr = (attr & backgroundMask)
|
|
attr |= foregroundIntensity
|
|
if (n-90)&1 != 0 {
|
|
attr |= foregroundRed
|
|
}
|
|
if (n-90)&2 != 0 {
|
|
attr |= foregroundGreen
|
|
}
|
|
if (n-90)&4 != 0 {
|
|
attr |= foregroundBlue
|
|
}
|
|
case 100 <= n && n <= 107:
|
|
attr = (attr & foregroundMask)
|
|
attr |= backgroundIntensity
|
|
if (n-100)&1 != 0 {
|
|
attr |= backgroundRed
|
|
}
|
|
if (n-100)&2 != 0 {
|
|
attr |= backgroundGreen
|
|
}
|
|
if (n-100)&4 != 0 {
|
|
attr |= backgroundBlue
|
|
}
|
|
}
|
|
procSetConsoleTextAttribute.Call(uintptr(w.handle), uintptr(attr))
|
|
}
|
|
}
|
|
case 'h':
|
|
var ci consoleCursorInfo
|
|
cs := buf.String()
|
|
if cs == "5>" {
|
|
procGetConsoleCursorInfo.Call(uintptr(w.handle), uintptr(unsafe.Pointer(&ci)))
|
|
ci.visible = 0
|
|
procSetConsoleCursorInfo.Call(uintptr(w.handle), uintptr(unsafe.Pointer(&ci)))
|
|
} else if cs == "?25" {
|
|
procGetConsoleCursorInfo.Call(uintptr(w.handle), uintptr(unsafe.Pointer(&ci)))
|
|
ci.visible = 1
|
|
procSetConsoleCursorInfo.Call(uintptr(w.handle), uintptr(unsafe.Pointer(&ci)))
|
|
}
|
|
case 'l':
|
|
var ci consoleCursorInfo
|
|
cs := buf.String()
|
|
if cs == "5>" {
|
|
procGetConsoleCursorInfo.Call(uintptr(w.handle), uintptr(unsafe.Pointer(&ci)))
|
|
ci.visible = 1
|
|
procSetConsoleCursorInfo.Call(uintptr(w.handle), uintptr(unsafe.Pointer(&ci)))
|
|
} else if cs == "?25" {
|
|
procGetConsoleCursorInfo.Call(uintptr(w.handle), uintptr(unsafe.Pointer(&ci)))
|
|
ci.visible = 0
|
|
procSetConsoleCursorInfo.Call(uintptr(w.handle), uintptr(unsafe.Pointer(&ci)))
|
|
}
|
|
case 's':
|
|
procGetConsoleScreenBufferInfo.Call(uintptr(w.handle), uintptr(unsafe.Pointer(&csbi)))
|
|
w.oldpos = csbi.cursorPosition
|
|
case 'u':
|
|
procSetConsoleCursorPosition.Call(uintptr(w.handle), *(*uintptr)(unsafe.Pointer(&w.oldpos)))
|
|
}
|
|
}
|
|
|
|
return len(data), nil
|
|
}
|
|
|
|
type consoleColor struct {
|
|
rgb int
|
|
red bool
|
|
green bool
|
|
blue bool
|
|
intensity bool
|
|
}
|
|
|
|
func (c consoleColor) foregroundAttr() (attr word) {
|
|
if c.red {
|
|
attr |= foregroundRed
|
|
}
|
|
if c.green {
|
|
attr |= foregroundGreen
|
|
}
|
|
if c.blue {
|
|
attr |= foregroundBlue
|
|
}
|
|
if c.intensity {
|
|
attr |= foregroundIntensity
|
|
}
|
|
return
|
|
}
|
|
|
|
func (c consoleColor) backgroundAttr() (attr word) {
|
|
if c.red {
|
|
attr |= backgroundRed
|
|
}
|
|
if c.green {
|
|
attr |= backgroundGreen
|
|
}
|
|
if c.blue {
|
|
attr |= backgroundBlue
|
|
}
|
|
if c.intensity {
|
|
attr |= backgroundIntensity
|
|
}
|
|
return
|
|
}
|
|
|
|
var color16 = []consoleColor{
|
|
{0x000000, false, false, false, false},
|
|
{0x000080, false, false, true, false},
|
|
{0x008000, false, true, false, false},
|
|
{0x008080, false, true, true, false},
|
|
{0x800000, true, false, false, false},
|
|
{0x800080, true, false, true, false},
|
|
{0x808000, true, true, false, false},
|
|
{0xc0c0c0, true, true, true, false},
|
|
{0x808080, false, false, false, true},
|
|
{0x0000ff, false, false, true, true},
|
|
{0x00ff00, false, true, false, true},
|
|
{0x00ffff, false, true, true, true},
|
|
{0xff0000, true, false, false, true},
|
|
{0xff00ff, true, false, true, true},
|
|
{0xffff00, true, true, false, true},
|
|
{0xffffff, true, true, true, true},
|
|
}
|
|
|
|
type hsv struct {
|
|
h, s, v float32
|
|
}
|
|
|
|
func (a hsv) dist(b hsv) float32 {
|
|
dh := a.h - b.h
|
|
switch {
|
|
case dh > 0.5:
|
|
dh = 1 - dh
|
|
case dh < -0.5:
|
|
dh = -1 - dh
|
|
}
|
|
ds := a.s - b.s
|
|
dv := a.v - b.v
|
|
return float32(math.Sqrt(float64(dh*dh + ds*ds + dv*dv)))
|
|
}
|
|
|
|
func toHSV(rgb int) hsv {
|
|
r, g, b := float32((rgb&0xFF0000)>>16)/256.0,
|
|
float32((rgb&0x00FF00)>>8)/256.0,
|
|
float32(rgb&0x0000FF)/256.0
|
|
min, max := minmax3f(r, g, b)
|
|
h := max - min
|
|
if h > 0 {
|
|
if max == r {
|
|
h = (g - b) / h
|
|
if h < 0 {
|
|
h += 6
|
|
}
|
|
} else if max == g {
|
|
h = 2 + (b-r)/h
|
|
} else {
|
|
h = 4 + (r-g)/h
|
|
}
|
|
}
|
|
h /= 6.0
|
|
s := max - min
|
|
if max != 0 {
|
|
s /= max
|
|
}
|
|
v := max
|
|
return hsv{h: h, s: s, v: v}
|
|
}
|
|
|
|
type hsvTable []hsv
|
|
|
|
func toHSVTable(rgbTable []consoleColor) hsvTable {
|
|
t := make(hsvTable, len(rgbTable))
|
|
for i, c := range rgbTable {
|
|
t[i] = toHSV(c.rgb)
|
|
}
|
|
return t
|
|
}
|
|
|
|
func (t hsvTable) find(rgb int) consoleColor {
|
|
hsv := toHSV(rgb)
|
|
n := 7
|
|
l := float32(5.0)
|
|
for i, p := range t {
|
|
d := hsv.dist(p)
|
|
if d < l {
|
|
l, n = d, i
|
|
}
|
|
}
|
|
return color16[n]
|
|
}
|
|
|
|
func minmax3f(a, b, c float32) (min, max float32) {
|
|
if a < b {
|
|
if b < c {
|
|
return a, c
|
|
} else if a < c {
|
|
return a, b
|
|
} else {
|
|
return c, b
|
|
}
|
|
} else {
|
|
if a < c {
|
|
return b, c
|
|
} else if b < c {
|
|
return b, a
|
|
} else {
|
|
return c, a
|
|
}
|
|
}
|
|
}
|
|
|
|
var n256foreAttr []word
|
|
var n256backAttr []word
|
|
|
|
func n256setup() {
|
|
n256foreAttr = make([]word, 256)
|
|
n256backAttr = make([]word, 256)
|
|
t := toHSVTable(color16)
|
|
for i, rgb := range color256 {
|
|
c := t.find(rgb)
|
|
n256foreAttr[i] = c.foregroundAttr()
|
|
n256backAttr[i] = c.backgroundAttr()
|
|
}
|
|
}
|