[refactoring] parsing error handler

pkg/parser/parser.go

@@ -3,6 +3,7 @@ package parser
 import (
 	"github.com/z7zmey/php-parser/internal/php5"
 	"github.com/z7zmey/php-parser/internal/php7"
+	"github.com/z7zmey/php-parser/internal/scanner"
 	"github.com/z7zmey/php-parser/internal/version"
 	"github.com/z7zmey/php-parser/pkg/ast"
 	"github.com/z7zmey/php-parser/pkg/errors"
@@ -12,22 +13,31 @@ import (
 type Parser interface {
 	Parse() int
 	GetRootNode() ast.Vertex
-	GetErrors() []*errors.Error
 }
 
-func NewParser(src []byte, v string, withTokens bool) (Parser, error) {
+type Config struct {
+	WithTokens       bool
+	WithPositions    bool
+	ErrorHandlerFunc func(e *errors.Error)
+}
+
+func Parse(src []byte, ver string, cfg Config) (ast.Vertex, error) {
 	var parser Parser
 
-	r, err := version.Compare(v, "7.0")
+	r, err := version.Compare(ver, "7.0")
 	if err != nil {
 		return nil, err
 	}
 
+	lexer := scanner.NewLexer(src, ver, cfg.WithTokens, cfg.ErrorHandlerFunc)
+
 	if r == -1 {
-		parser = php5.NewParser(src, v, withTokens)
+		parser = php5.NewParser(lexer, cfg.WithTokens, cfg.ErrorHandlerFunc)
 	} else {
-		parser = php7.NewParser(src, v, withTokens)
+		parser = php7.NewParser(lexer, cfg.WithTokens, cfg.ErrorHandlerFunc)
 	}
 
-	return parser, nil
+	parser.Parse()
+
+	return parser.GetRootNode(), nil
 }