use generic functions for dealing with lists.

helpers.go

@@ -2,12 +2,11 @@ package nostr
 
 import (
 	"strings"
+
+	"golang.org/x/exp/constraints"
 )
 
-type StringList []string
-type IntList []int
-
-func (as StringList) Equals(bs StringList) bool {
+func Similar[E constraints.Ordered](as, bs []E) bool {
 	if len(as) != len(bs) {
 		return false
 	}
@@ -28,37 +27,7 @@ func (as StringList) Equals(bs StringList) bool {
 	return true
 }
 
-func (as IntList) Equals(bs IntList) bool {
-	if len(as) != len(bs) {
-		return false
-	}
-
-	for _, a := range as {
-		for _, b := range bs {
-			if b == a {
-				goto next
-			}
-		}
-		// didn't find a B that corresponded to the current A
-		return false
-
-	next:
-		continue
-	}
-
-	return true
-}
-
-func (haystack StringList) Contains(needle string) bool {
-	for _, hay := range haystack {
-		if hay == needle {
-			return true
-		}
-	}
-	return false
-}
-
-func (haystack StringList) ContainsPrefixOf(needle string) bool {
+func ContainsPrefixOf(haystack []string, needle string) bool {
 	for _, hay := range haystack {
 		if strings.HasPrefix(needle, hay) {
 			return true
@@ -66,12 +35,3 @@ func (haystack StringList) ContainsPrefixOf(needle string) bool {
 	}
 	return false
 }
-
-func (haystack IntList) Contains(needle int) bool {
-	for _, hay := range haystack {
-		if hay == needle {
-			return true
-		}
-	}
-	return false
-}