feat: prettify stats when figure was passed in as 0

The code understands 0 as "no limit", but I want to convey the
no-limit concept to readers of the file who don't have a notion of how
the program works. So I convert 0 to ∞ in the string output here.

1 files changed, 9 insertions, 1 deletions

diff --git a/xml.go b/xml.go
index e1a253f..74ecc0d 100644
--- a/xml.go
+++ b/xml.go
@@ -37,7 +37,7 @@ func toSitemap(seen map[url.URL]int, maxDepth, maxURLs int) (string, error) {
 	set := XMLURLset{
 		Xmlns:   "http://www.sitemaps.org/schemas/sitemap/0.9",
 		URLs:    xmlURLs,
-		Comment: fmt.Sprintf("max depth: %d, max urls: %d", maxDepth, maxURLs),
+		Comment: fmt.Sprintf("max depth: %s, max urls: %s", toSymbol(maxDepth), toSymbol(maxURLs)),
 	}
 
 	output, err := xml.MarshalIndent(&set, "", "\t")
@@ -48,3 +48,11 @@ func toSitemap(seen map[url.URL]int, maxDepth, maxURLs int) (string, error) {
 	withHeader := fmt.Sprintf("%s\n%s", xml.Header, output)
 	return withHeader, nil
 }
+
+func toSymbol(figure int) string {
+	if figure == 0 {
+		return "∞"
+	}
+
+	return fmt.Sprintf("%d", figure)
+}