mirror of
https://github.com/sorenisanerd/gotty.git
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106 lines
1.9 KiB
Go
106 lines
1.9 KiB
Go
package utils
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import "fmt"
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var CtrlChar = map[byte]string{
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0: "NUL",
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1: "SOH",
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2: "STX",
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3: "ETX",
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4: "EOT",
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5: "ENQ",
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6: "ACK",
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7: "BEL",
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8: "BS",
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9: "HT",
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10: "LF",
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11: "VT",
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12: "FF",
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13: "CR",
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14: "SO",
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15: "SI",
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16: "DLE",
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17: "DCI",
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18: "DC2",
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19: "DC3",
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20: "DC4",
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21: "NAK",
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22: "SYN",
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23: "TB",
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24: "CAN",
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25: "EM",
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26: "SUB",
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27: "ESC",
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28: "FS",
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29: "GS",
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30: "RS",
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31: "US",
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32: "SPACE",
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127: "DEL",
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}
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var CtrlCharGroup = map[string]string{
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"1B5B41": "UP",
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"1B5B42": "DOWN",
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"1B5B43": "RIGHT",
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"1B5B44": "LEFT",
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// shell control codes
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// codes[0]+codes[1]+codes[n-1]
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// for example:
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// [1B(ESC) 5B([) 32(2) 3B(;) 35(5) 52(R)]: row 2 col 5
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// [1B(ESC) 5B([) 31(1) 30(0) 3B(;) 35(5) 52(R)]: row 10 col 5
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// [1B(ESC) 5B([) 32(2) 32(2) 3B(;) 35(5) 52(R)]: row 22 col 5
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"1B5B52": "",
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// maybe there will be more control char group
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// ...
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}
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func FormatWriteLog(codes []byte, line *string) {
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n := len(codes)
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// when user uses the keyboard arrow keys
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// arrow keys are combination of 3 ASCII codes
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if n == 3 {
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if str, exist := ASCIIGroupToStr(fmt.Sprintf("%X", codes)); exist {
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*line += str
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return
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}
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}
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// for some shells
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// they will automatically send some control characters
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// after typing the command and pressing Enter
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// which indicate the current row and column.
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if n >= 6 {
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if str, exist := ASCIIGroupToStr(fmt.Sprintf("%X", []byte{codes[0], codes[1], codes[n-1]})); exist {
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*line += str
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return
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}
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}
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str := ASCIIToStr(codes)
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*line += str
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return
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}
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func ASCIIToStr(codes []byte) (str string) {
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for _, code := range codes {
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if value, ok := CtrlChar[code]; ok {
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str += value
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} else {
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str += string(code)
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}
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}
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return
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}
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func ASCIIGroupToStr(group string) (string, bool) {
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if value, ok := CtrlCharGroup[group]; ok {
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return value, true
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}
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return "", false
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}
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