Improved structure and added comments

1 files changed, 90 insertions, 0 deletions

diff --git a/go-src/csi/csi.go b/go-src/csi/csi.go
new file mode 100644
index 0000000..100db59
--- /dev/null
+++ b/go-src/csi/csi.go
@@ -0,0 +1,90 @@
+package csi
+
+import (
+	"fmt"
+	"os"
+	"os/exec"
+	"runtime"
+)
+
+const (
+	ansiCUUf = "\033[%vA" // Cursor (move) Up, formatted version (expects to be given a number)
+	ansiCUDf = "\033[%vB" // Cursor (move) Down, formated version (expects to be given a number)
+	ansiCUFf = "\033[%vC" // Cursor (move) Forward (to the right), formatted version (expects to be given a number)
+
+	ansiCUU = "\033[A"  // Cursor (move) Up
+	ansiCUD = "\033[B"  // Cursor (move) Down
+	ansiCUF = "\033[C"  // Cursor (move) Forward (to the right)
+	ansiCNL = "\033[E"  // Cursor (move) Next Line
+	ansiED  = "\033[2J" // Erase in Display (clears entire screen)
+	ansiEL  = "\033[K"  // Erase in Line (clears from cursor to end of line)
+
+	ansiSCP = "\033[s" // Save Current Cursor Position
+	ansiRCP = "\033[u" // Restore Saved Cursor Position
+)
+
+func MoveCursorUpN(times int) {
+	fmt.Printf(ansiCUUf, times)
+}
+
+func MoveCursorDownN(times int) {
+	fmt.Printf(ansiCUDf, times)
+}
+
+func MoveCursorRightN(times int) {
+	fmt.Printf(ansiCUFf, times)
+}
+
+func MoveCursorUp() {
+	fmt.Print(ansiCUU)
+}
+
+func MoveCursorDown() {
+	fmt.Print(ansiCUD)
+}
+
+func MoveCursorRight() {
+	fmt.Printf(ansiCUF)
+}
+
+func MoveCursorToBeginningOfLine() {
+	fmt.Print(ansiCNL)
+}
+
+func ClearLine() {
+	fmt.Print(ansiEL)
+}
+
+var blockClearing = false
+
+func ClearScreen() {
+	if blockClearing {
+		blockClearing = false
+		return
+	}
+
+	if runtime.GOOS == "windows" {
+		cmd := exec.Command("cmd", "/c", "cls")
+		cmd.Stdout = os.Stdout
+		cmd.Run()
+	} else {
+		fmt.Println(ansiED)
+	}
+}
+
+// The next time that ClearScreen is called, it won't clear the screen
+func BlockClearScreenNextTime() {
+	blockClearing = true
+}
+
+func EraseToEndOfLine() {
+	fmt.Print(ansiEL)
+}
+
+func SaveCursorPosition() {
+	fmt.Print(ansiSCP)
+}
+
+func RestoreCursorPosition() {
+	fmt.Print(ansiRCP)
+}