Fix confusion between index and limit in URL parse

cache.go

@@ -122,7 +122,10 @@ func (c *caches) run() {
 				continue
 			}
 
-			if r.limit == 0 || r.limit > lfiles {
+			if r.limit == 0 {
+				r.limit = 1
+			}
+			if r.limit > lfiles {
 				r.limit = lfiles
 			}
 

config.go

@@ -45,7 +45,7 @@ type config struct {
 
 func newConfig() *config {
 	keys := makeIndexKeys()
-	keys.add("", keyTypeAny)
+	keys.add("", keyTypeNormal)
 	keys.add("from", keyTypeAddr)
 	keys.add("to", keyTypeAddr)
 

mail.go

@@ -64,9 +64,6 @@ func (m *mailIndexer) cacheEntries(file mailFile, msg *mail.Message) []cacheEntr
 
 	for key, kt := range m.keys {
 		headerKey, val := headers.get(key)
-		if val == nil {
-			continue
-		}
 
 		switch kt {
 		case keyTypeAny:
@@ -86,6 +83,13 @@ func (m *mailIndexer) cacheEntries(file mailFile, msg *mail.Message) []cacheEntr
 				log.Print(file, ": error parsing header ", headerKey, ": ", err)
 			}
 		default:
+			if val == nil && key == "" {
+				entries = append(entries, cacheEntry{
+					name: "", key: "", value: file,
+				})
+				continue
+			}
+
 			for _, v := range val {
 				entries = append(entries, cacheEntry{
 					name:  key,

urls.go

@@ -39,7 +39,6 @@ func makeCacheRequest(url string) (*cacheRequest, error) {
 	}
 
 	if len(parts) < 2 {
-		cr.limit = 1
 		return cr, nil
 	}
 
@@ -100,10 +99,10 @@ func makeCacheRequest(url string) (*cacheRequest, error) {
 		return cr, nil
 	}
 
-	if limit, err := strconv.ParseInt(parts[1], 10, 32); err != nil {
+	if index, err := strconv.ParseInt(parts[1], 10, 32); err != nil {
 		return nil, err
 	} else {
-		cr.limit = int(limit)
+		cr.index = int(index)
 		return cr, nil
 	}
 

urls_test.go

@@ -5,14 +5,14 @@ import (
 )
 
 func TestUrlLatest(t *testing.T) {
-	cr, err := makeCacheRequest("/latest/1")
+	cr, err := makeCacheRequest("/latest/2")
 	if err != nil {
 		t.Error("No error expected, got: ", err)
 	}
-	if cr.limit != 1 {
+	if cr.limit != 0 {
 		t.Error("Limit is not set correctly")
 	}
-	if cr.index != 0 {
+	if cr.index != 2 {
 		t.Error("Index is not set correctly")
 	}
 	if cr.oldest == true {
@@ -25,10 +25,10 @@ func TestUrlOldest(t *testing.T) {
 	if err != nil {
 		t.Error("No error expected, got: ", err)
 	}
-	if cr.limit != 17 {
+	if cr.limit != 0 {
 		t.Error("Limit is not set correctly")
 	}
-	if cr.index != 0 {
+	if cr.index != 17 {
 		t.Error("Index is not set correctly")
 	}
 	if cr.oldest != true {
@@ -73,10 +73,10 @@ func TestUrlFrom(t *testing.T) {
 	if err != nil {
 		t.Error("No error expected, got: ", err)
 	}
-	if cr.limit != 17 {
+	if cr.limit != 0 {
 		t.Error("Limit is not set correctly")
 	}
-	if cr.index != 0 {
+	if cr.index != 17 {
 		t.Error("Index is not set correctly")
 	}
 	if cr.oldest != true {