67 lines
1.0 KiB
Go
67 lines
1.0 KiB
Go
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package term
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import (
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"fmt"
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"strings"
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)
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// ASCII list the possible supported ASCII key sequence
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var ASCII = []string{
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"ctrl-@",
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"ctrl-a",
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"ctrl-b",
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"ctrl-c",
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"ctrl-d",
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"ctrl-e",
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"ctrl-f",
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"ctrl-g",
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"ctrl-h",
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"ctrl-i",
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"ctrl-j",
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"ctrl-k",
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"ctrl-l",
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"ctrl-m",
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"ctrl-n",
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"ctrl-o",
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"ctrl-p",
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"ctrl-q",
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"ctrl-r",
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"ctrl-s",
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"ctrl-t",
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"ctrl-u",
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"ctrl-v",
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"ctrl-w",
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"ctrl-x",
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"ctrl-y",
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"ctrl-z",
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"ctrl-[",
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"ctrl-\\",
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"ctrl-]",
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"ctrl-^",
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"ctrl-_",
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}
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// ToBytes converts a string representing a suite of key-sequence to the corresponding ASCII code.
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func ToBytes(keys string) ([]byte, error) {
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codes := []byte{}
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next:
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for _, key := range strings.Split(keys, ",") {
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if len(key) != 1 {
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for code, ctrl := range ASCII {
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if ctrl == key {
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codes = append(codes, byte(code))
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continue next
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}
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}
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if key == "DEL" {
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codes = append(codes, 127)
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} else {
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return nil, fmt.Errorf("Unknown character: '%s'", key)
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}
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} else {
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codes = append(codes, key[0])
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}
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}
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return codes, nil
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}
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