claude: fold in old sow-tools

internal/topdata/wiki_preserve.go

@@ -0,0 +1,54 @@
+package topdata
+
+import "strings"
+
+func normalizePreservedSectionBodies(content string) string {
+	var out strings.Builder
+	offset := 0
+	for {
+		startRel := strings.Index(content[offset:], manualStartMarkerPrefix)
+		if startRel < 0 {
+			out.WriteString(content[offset:])
+			break
+		}
+		start := offset + startRel
+		startEndRel := strings.Index(content[start:], "-->")
+		if startEndRel < 0 {
+			out.WriteString(content[offset:])
+			break
+		}
+		startMarker := content[start : start+startEndRel+len("-->")]
+		id := markerID(startMarker)
+		if id == "" {
+			out.WriteString(content[offset : start+len(startMarker)])
+			offset = start + len(startMarker)
+			continue
+		}
+		endPrefix := manualEndMarkerPrefix + " id=\"" + id + "\""
+		endRel := strings.Index(content[start+len(startMarker):], endPrefix)
+		if endRel < 0 {
+			out.WriteString(content[offset:])
+			break
+		}
+		end := start + len(startMarker) + endRel
+		endEndRel := strings.Index(content[end:], "-->")
+		if endEndRel < 0 {
+			out.WriteString(content[offset:])
+			break
+		}
+		endMarker := content[end : end+endEndRel+len("-->")]
+		out.WriteString(content[offset:start])
+		out.WriteString(startMarker)
+		out.WriteString("\n<!-- preserved-section-body -->\n")
+		out.WriteString(endMarker)
+		offset = end + len(endMarker)
+	}
+	return out.String()
+}
+
+func defaultWikiManualSections() []wikiManualSection {
+	return []wikiManualSection{
+		{ID: "user_top", Alias: "UserTopSection", Heading: "", InitialHTML: "<p></p>"},
+		{ID: "user_bottom", Alias: "UserBottomSection", Heading: "", InitialHTML: "<p></p>"},
+	}
+}