refactor(utilities): move utilities to seperate package

1 files changed, 31 insertions, 0 deletions

diff --git a/pkg/utilities/hex.go b/pkg/utilities/hex.go
new file mode 100644
index 0000000..30428b7
--- /dev/null
+++ b/pkg/utilities/hex.go
@@ -0,0 +1,31 @@
+package utilities
+
+import "unicode/utf8"
+
+// https://stackoverflow.com/a/43461796/14452787
+//
+// I cannot explain the joy that flew through me once I found this ISO-8859-1
+// (Latin-1) to UTF-8 converter. I was looking for a valid solution on how to
+// insert the username and password into a hex-escaped string sequence for
+// EncodeSessionInitialization for hours and this finally solved all of my
+// problems.
+func ISO88591ToString(iso string) string {
+	var utf []rune
+	for i := 0; i < len(iso); i++ {
+		r := iso[i]
+		if utf == nil {
+			if r < utf8.RuneSelf {
+				continue
+			}
+			utf = make([]rune, len(iso))
+			for j, r := range iso[:i] {
+				utf[j] = rune(r)
+			}
+		}
+		utf[i] = rune(r)
+	}
+	if utf == nil {
+		return string(iso)
+	}
+	return string(utf)
+}