Add support for !num inside of named capture groups

processor/regex.go

@@ -80,6 +80,20 @@ func (p *RegexProcessor) ProcessContent(content string, pattern string, luaExpr
 		log.Printf("Pattern modified to include (?s): %s", pattern)
 	}
 
+	// The order of these replaces is important
+	// This one handles !num-s inside of named capture groups
+	// If it were not here our !num in a named capture group would
+	// Expand to another capture group in the capture group
+	// We really only want one (our named) capture group
+	namedGroupNum := regexp.MustCompile(`(?:(\?<[^>]+>)(!num))`)
+	pattern = namedGroupNum.ReplaceAllStringFunc(pattern, func(match string) string {
+		parts := namedGroupNum.FindStringSubmatch(match)
+		if len(parts) != 3 {
+			return match
+		}
+		replacement := `\d*\.?\d+`
+		return parts[1] + replacement
+	})
 	pattern = strings.ReplaceAll(pattern, "!num", `"?(\d*\.?\d+)"?`)
 	pattern = strings.ReplaceAll(pattern, "!any", `.*?`)
 	repPattern := regexp.MustCompile(`!rep\(([^,]+),\s*(\d+)\)`)
@@ -125,7 +139,7 @@ func (p *RegexProcessor) ProcessContent(content string, pattern string, luaExpr
 			log.Printf("Error creating Lua state: %v", err)
 			return "", 0, 0, fmt.Errorf("error creating Lua state: %v", err)
 		}
-		// Hmm... Maybe we don't want to defer this.. 		
+		// Hmm... Maybe we don't want to defer this..
 		// Maybe we want to close them every iteration
 		// We'll leave it as is for now
 		defer L.Close()