chore: update encoding of multiple xml files

CHANGELOG.md

@@ -5,6 +5,12 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## [0.0.4] - 2024-04-03
+
+### Changed
+
+- Handle encoding on xml header or not encoding.
+
 ## [0.0.3] - 2024-04-03
 
 ### Changed

feedback/feedback.go

@@ -5,6 +5,7 @@ import (
 	"fmt"
 	"io"
 	"os"
+	"regexp"
 	"strings"
 )
 
@@ -81,7 +82,11 @@ func (r *AggregatedReports) ReadFromStdin() error {
 		return fmt.Errorf("error reading from stdin: %v", err)
 	}
 
-	xmlDocs := strings.Split(string(stdinData), `<?xml version="1.0" encoding="UTF-8" ?>`)
+	// Split the input data into individual XML documents using a regular expression.
+	xmlDeclPattern := `\<\?xml version="1.0"( encoding="UTF-8")?\s*\?\>`
+	re := regexp.MustCompile(xmlDeclPattern)
+	xmlDocs := re.Split(string(stdinData), -1)
+
 	for _, xmlDoc := range xmlDocs {
 		if strings.TrimSpace(xmlDoc) == "" {
 			continue