commit 64b08e1e5fe43e66f9ec1e54408492907975b724
from: Oliver Lowe <o@olowe.co>
date: Sun Apr  6 00:48:58 2025 UTC

internal/sip: extract containsSpace function

We'll need it later and we're a few nested for loops and if stmts
down so a little cleaner once we do this a few more times.

commit - 5740e5eef190ea7e2a372f6c5da31c40910fe507
commit + 64b08e1e5fe43e66f9ec1e54408492907975b724
blob - ef73037cc9d6f7a5afef4090b30f7e5fb2bc9e5b
blob + 2c65b272dda9d6e1bc870a40e60b4740d887f46b
--- internal/sip/sip.go
+++ internal/sip/sip.go
@@ -259,15 +259,22 @@ func parseStartLine(text string) (line [3]string, err 
 		return line, fmt.Errorf("expected 3 fields, read %d", len(fields))
 	}
 	for i, s := range fields {
-		for _, r := range s {
-			if unicode.IsSpace(r) {
-				return line, fmt.Errorf("illegal space character in field %d", i)
-			}
+		if containsSpace(s) {
+			return line, fmt.Errorf("illegal space character in field %d", i)
 		}
 	}
 	return [3]string{fields[0], fields[1], fields[2]}, nil
 }
 
+func containsSpace(s string) bool {
+	for _, r := range s {
+		if unicode.IsSpace(r) {
+			return true
+		}
+	}
+	return false
+}
+
 type CommandSequence struct {
 	Number int
 	Method string