Enable go module

Set go version to 1.18
Add arguments to set press delay and release delay
Add better handling for unknown characters

ghid/keyboard.go

@@ -103,15 +103,19 @@ func (k *Keyboard) Write(p []byte) (int, error) {
 			}
 			cur, ok := k.CurrentKeymap()[string(r)]
 			if !ok {
-				if i == 3 { // can't press two keys from different keymaps
+				if i == 2 { // We can change the keymap if we are on the first key
 					ok, err = k.changeKeymap(r)
-					if !ok && k.ErrOnUnknownKey {
+					if !ok { // rune does not have a mapping
-						if err != nil {
+						if k.ErrOnUnknownKey {
-							return index, err
+							if err != nil {
+								return index, err
+							}
+							return index, fmt.Errorf("rune not in keymap: %c", r)
 						}
-						return index, fmt.Errorf("rune not in keymap: %c", r)
+						index += s
+						break press
 					}
-				} else {
+				} else { // rune does not have a mapping in this keymaps
 					break press
 				}
 			}
@@ -157,7 +161,7 @@ func (k *Keyboard) Write(p []byte) (int, error) {
 					if report[i-1] != 0 {
 						break press
 					}
-					// Add the modifier of the current key eg 'D' adds shift 'd' does not
+					// Add the modifier of the current key eg 'D' adds shift; 'd' does not
 					flag |= mod
 				}
 

go.mod

@@ -0,0 +1,3 @@
+module github.com/lordwelch/hid
+
+go 1.18

main.go

@@ -6,19 +6,23 @@ import (
 	"io"
 	"os"
 	"path"
+	"time"
 
-	hid "timmy.narnian.us/hid/ghid"
+	hid "github.com/lordwelch/hid/ghid"
 )
 
 func main() {
 	var (
-		Shortcut   string
+		Shortcut     string
-		filePath   string
+		filePath     string
-		keymapPath string
+		keymapPath   string
-		err        error
+		ghidPath     string
-		ghid0      *os.File
+		pressDelay   time.Duration
-		tmp        *os.File
+		releaseDelay time.Duration
-		keyboard   *hid.Keyboard
+		err          error
+		ghid         *os.File
+		tmp          *os.File
+		keyboard     *hid.Keyboard
 	)
 	if _, exists := os.LookupEnv("XDG_CONFIG_HOME"); !exists {
 		_ = os.Setenv("XDG_CONFIG_HOME", path.Join(os.ExpandEnv("$HOME"), ".config"))
@@ -29,6 +33,10 @@ func main() {
 	flag.StringVar(&keymapPath, "p", path.Join(os.ExpandEnv("$XDG_CONFIG_HOME"), "hid"), "Path to config dir default: $XDG_CONFIG_HOME")
 	flag.StringVar(&filePath, "f", "-", "The file to read content from. Defaults to stdin")
 	flag.StringVar(&filePath, "file", "-", "The file to read content from. Defaults to stdin")
+	flag.StringVar(&ghidPath, "g", "/dev/hidg0", "The device to send key presses to. Defaults to /dev/hidg0")
+	flag.StringVar(&ghidPath, "ghid", "/dev/hidg0", "The device to send key presses to. Defaults to /dev/hidg0")
+	flag.DurationVar(&pressDelay, "press", 0, "sets the default delay between presses of individual keys")
+	flag.DurationVar(&releaseDelay, "press", 0, "sets the default delay between sending the press of an individual key and sending the release")
 	flag.Parse()
 	if flag.NArg() < 0 {
 		flag.Usage()
@@ -44,13 +52,15 @@ func main() {
 		}
 	}
 
-	ghid0, err = os.OpenFile("/dev/hidg0", os.O_APPEND|os.O_WRONLY, 0600)
+	ghid, err = os.OpenFile(ghidPath, os.O_APPEND|os.O_WRONLY, 0600)
 	if err != nil {
 		panic(err)
 	}
-	defer ghid0.Close()
+	defer ghid.Close()
 
-	keyboard = hid.NewKeyboard(hid.Modifiers, flag.Args(), keymapPath, ghid0)
+	keyboard = hid.NewKeyboard(hid.Modifiers, flag.Args(), keymapPath, ghid)
+	keyboard.PressDelay = pressDelay
+	keyboard.ReleaseDelay = releaseDelay
 
 	_, err = io.Copy(keyboard, os.Stdin)