1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
|
// 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"
"log"
"github.com/go-git/gcfg/v2/scanner"
"github.com/go-git/gcfg/v2/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, err := fset.AddFile("", fset.Base(), len(src)) // register input "file"
if err != nil {
log.Fatalf("failed to add file: %v", err)
}
err = s.Init(file, src, nil /* no error handler */, scanner.ScanComments)
if err != nil {
log.Fatalf("failed to initialize scanner: %v", err)
}
// Repeated calls to Scan yield the token sequence found in the input.
for {
pos, tok, lit, err := s.Scan()
if err != nil {
log.Fatalf("failed to scan: %v", err)
}
if tok == token.EOF {
break
}
fmt.Printf("%s\t%q\t%q\n", fset.Position(pos), tok, lit)
}
// output:
// 1:1 "[" ""
// 1:2 "IDENT" "profile"
// 1:10 "STRING" "\"A\""
// 1:13 "]" ""
// 1:14 "\n" ""
// 2:1 "IDENT" "color"
// 2:7 "=" ""
// 2:9 "STRING" "blue"
// 2:14 "COMMENT" "; Comment"
}
|
