Wiki List Support

internal/topdata/wiki_template_expr.go

@@ -185,6 +185,8 @@ func (ctx *wikiContext) applyWikiTemplateFilter(value any, filter string, state
 		return text, nil
 	case "join":
 		return joinWikiTemplateValue(value, firstArg(args)), nil
+	case "list":
+		return wikiTemplateHTML(renderWikiTemplateList(value, firstArg(args))), nil
 	case "ordinal":
 		return ordinalWikiTableValue(numericWikiTableValue(value)), nil
 	case "default":
@@ -361,6 +363,50 @@ func joinWikiTemplateValue(value any, sep string) string {
 	}
 }
 
+func renderWikiTemplateList(value any, class string) string {
+	items := wikiTemplateListItems(value)
+	if len(items) == 0 {
+		return ""
+	}
+	var out strings.Builder
+	out.WriteString("<ul")
+	out.WriteString(attrClass(class))
+	out.WriteString(">")
+	for _, item := range items {
+		out.WriteString("<li>")
+		out.WriteString(renderWikiLinks(item))
+		out.WriteString("</li>")
+	}
+	out.WriteString("</ul>")
+	return out.String()
+}
+
+func wikiTemplateListItems(value any) []string {
+	switch typed := value.(type) {
+	case []string:
+		out := make([]string, 0, len(typed))
+		for _, item := range typed {
+			if text := strings.TrimSpace(item); text != "" {
+				out = append(out, text)
+			}
+		}
+		return out
+	case []any:
+		out := make([]string, 0, len(typed))
+		for _, item := range typed {
+			if text := strings.TrimSpace(stringifyWikiTemplatePlain(item)); text != "" {
+				out = append(out, text)
+			}
+		}
+		return out
+	default:
+		if text := strings.TrimSpace(stringifyWikiTemplatePlain(value)); text != "" {
+			return []string{text}
+		}
+		return nil
+	}
+}
+
 func (ctx *wikiContext) renderTemplateReference(value any, dataset string) string {
 	return ctx.renderReference(value, ctx.wikiIDMapForDataset(dataset), ctx.wikiNameResolverForDataset(dataset))
 }