Cleanup main package

gilo.go

@@ -2,68 +2,15 @@ package main
 
 import (
 	"bufio"
-	"fmt"
-	"golang.org/x/term"
 	"os"
+	"timshome.page/gilo/internal/rune"
+	"timshome.page/gilo/internal/terminal"
 )
 
-func isAscii(char rune) bool {
-	ord := int(char)
-
-	return ord < 0x80
-}
-
-func isCtrl(char rune) bool {
-	if !isAscii(char) {
-		return false
-	}
-
-	ord := int(char)
-
-	return ord == 0x7f || ord < 0x20
-}
-
-// Return the input code of a Ctrl-key chord.
-func ctrlKey(char rune) rune {
-	ord := int(char)
-	raw := ord & 0x1f
-
-	if !isCtrl(rune(raw)) {
-		return 0
-	}
-
-	return rune(raw)
-}
-
-// Put the terminal in raw mode
-func rawOn() *term.State {
-	oldState, err := term.MakeRaw(int(os.Stdin.Fd()))
-	if err != nil {
-		panic(err)
-	}
-
-	return oldState
-}
-
-// Restore the terminal to canonical mode
-func rawOff(oldState *term.State) {
-	err := term.Restore(int(os.Stdin.Fd()), oldState)
-	if err != nil {
-		panic(err)
-	}
-}
-
-// Print a formatted string to stdout, with CRLF line endings for proper terminal formatting
-func outLn(format string, a ...interface{}) {
-	formatted := fmt.Sprintf(format, a...)
-
-	fmt.Printf("%s\r\n", formatted)
-}
-
 func main() {
-	// Go to proper raw mode, but restore canonical mode at extit
-	oldState := rawOn()
-	defer rawOff(oldState)
+	// Go to proper raw mode, but restore canonical mode at exit
+	oldState := terminal.RawOn()
+	defer terminal.RawOff(oldState)
 
 	reader := bufio.NewReader(os.Stdin)
 
@@ -75,13 +22,13 @@ func main() {
 
 		// Ugliest syntax structure ever?
 		switch {
-		case char == ctrlKey('q'):
-			outLn("bye!")
+		case char == rune.Ctrl('q'):
+			terminal.OutLn("bye!")
 			return
-		case isCtrl(char):
-			outLn("%d", char)
+		case rune.IsCtrl(char):
+			terminal.OutLn("%d", char)
 		default:
-			outLn("%d ('%c')", char, char)
+			terminal.OutLn("%d ('%c')", char, char)
 		}
 	}
 }

go.mod

@@ -1,4 +1,4 @@
-module timshomepage.net/gilo
+module timshome.page/gilo
 
 go 1.16