refactor php7

pkg/parser/parser.go

@@ -0,0 +1,34 @@
+package parser
+
+import (
+	"github.com/z7zmey/php-parser/internal/php5"
+	"github.com/z7zmey/php-parser/internal/php7"
+	"github.com/z7zmey/php-parser/internal/version"
+	"github.com/z7zmey/php-parser/pkg/ast"
+	"github.com/z7zmey/php-parser/pkg/errors"
+)
+
+// Parser interface
+type Parser interface {
+	Parse() int
+	GetRootNode() ast.Vertex
+	GetErrors() []*errors.Error
+	WithTokens()
+}
+
+func NewParser(src []byte, v string) (Parser, error) {
+	var parser Parser
+
+	r, err := version.Compare(v, "7.0")
+	if err != nil {
+		return nil, err
+	}
+
+	if r == -1 {
+		parser = php5.NewParser(src, v)
+	} else {
+		parser = php7.NewParser(src, v)
+	}
+
+	return parser, nil
+}