code review 3050041: go/ast: use token.Pos instead of token.Position; adjus...

src/pkg/ebnf/parser.go

 // Copyright 2009 The Go Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
 package ebnf
 
 import (
         "go/scanner"
         "go/token"
         "os"
@@ skipping 180 matching lines @@
                 }
         }
 
         return grammar
 }
 
 
 // Parse parses a set of EBNF productions from source src.
 // It returns a set of productions. Errors are reported
 // for incorrect syntax and if a production is declared
-// more than once.
+// more than once. Position information is recorded relative
+// to the file set fset.
 //
 func Parse(fset *token.FileSet, filename string, src []byte) (Grammar, os.Error) {
         var p parser
         grammar := p.parse(fset, filename, src)
         return grammar, p.GetError(scanner.Sorted)
 }