After commit c018f5fd29 Fenrir is being switched over to go. If you do not want to be part of the testing process, please switch to master.

internal/presentation/indentation.go

@@ -0,0 +1,37 @@
+// Copyright (c) 2026 Storm Dragon
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+package presentation
+
+import (
+	"strconv"
+	"unicode"
+
+	"git.stormux.org/storm/fenrir/internal/i18n"
+)
+
+// Indentation_level counts leading visible whitespace cells. Terminal backends
+// normally expand tabs already; a literal tab advances to the next 8-cell stop.
+// Blank rows have no meaningful indentation, including terminal padding.
+func Indentation_level(line []rune) (int, bool) {
+	level := 0
+	for _, char := range line {
+		if !unicode.IsSpace(char) {
+			return level, true
+		}
+		if char == '\t' {
+			level += 8 - level%8
+		} else {
+			level++
+		}
+	}
+	return 0, false
+}
+
+func Indentation_message(level int, mode string) Message {
+	message := Message{Text: i18n.T("indented ") + strconv.Itoa(level) + " "}
+	if mode == "beeps" || mode == "both" {
+		message.Indentation = &Indentation{Level: level, Speech: mode == "both"}
+	}
+	return message
+}