blob: c5aa2d02af3ccb5d7d23092bd5e4bda668173dc1 [file] [log] [blame]
// Copyright 2012 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 scanner_test
import (
"fmt"
)
import (
"code.google.com/p/gcfg/scanner"
"code.google.com/p/gcfg/token"
)
func ExampleScanner_Scan() {
// src is the input that we want to tokenize.
src := []byte(`[profile "A"]
color = blue ; Comment`)
// Initialize the scanner.
var s scanner.Scanner
fset := token.NewFileSet() // positions are relative to fset
file := fset.AddFile("", fset.Base(), len(src)) // register input "file"
s.Init(file, src, nil /* no error handler */, scanner.ScanComments)
// Repeated calls to Scan yield the token sequence found in the input.
for {
pos, tok, lit := s.Scan()
if tok == token.EOF {
break
}
fmt.Printf("%s\t%s\t%q\n", fset.Position(pos), tok, lit)
}
// output:
// 1:1 [ ""
// 1:2 IDENT "profile"
// 1:10 STRING "\"A\""
// 1:13 ] ""
// 1:14 EOL ""
// 2:1 IDENT "color"
// 2:7 = ""
// 2:9 STRING "blue"
// 2:14 COMMENT "; Comment"
}