Remove validation

Signed-off-by: Ulysses Souza <[email protected]>

Author: ulyssessouza

godotenv.go

@@ -311,9 +311,6 @@ func parseLine(line string, envMap map[string]string, lookupFn func(string)(stri
 	// Parse the key
 	key = strings.TrimSpace(strings.TrimPrefix(splitString[0], "export "))
 	key = exportRegex.ReplaceAllString(key, "$1")
-	if err = validateVariableName(key); err != nil {
-		return
-	}
 
 	// Environment inherited variable
 	if firstEquals < 0 && firstColon < 0 {
@@ -335,20 +332,11 @@ func parseLine(line string, envMap map[string]string, lookupFn func(string)(stri
 	return
 }
 
-func validateVariableName(key string) error {
-	key = strings.TrimSpace(strings.TrimPrefix(key, "export "))
-	if !variableNameRegex.MatchString(key) {
-		return fmt.Errorf("invalid variable name %q", key)
-	}
-	return nil
-}
-
 var (
 	singleQuotesRegex  = regexp.MustCompile(`\A'(.*)'\z`)
 	doubleQuotesRegex  = regexp.MustCompile(`\A"(.*)"\z`)
 	escapeRegex        = regexp.MustCompile(`\\.`)
 	unescapeCharsRegex = regexp.MustCompile(`\\([^$])`)
-	variableNameRegex  = regexp.MustCompile(`^[_\\.a-zA-Z0-9]+$`)
 
 	noLookupFn = func(string)(string, bool) {return "", true}
 )