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
55
56
57
58
59
60
61
62
|
package conf
import (
"bufio"
"io"
)
type tokentype int
const (
Name tokentype = iota
Literal
Delimiter
Nothing
IfStatement
)
type token struct {
Type tokentype
}
type scanner struct {
r io.Reader
bs bufio.Scanner
prev token
cur token
}
func newScanner(r io.Reader) *scanner {
ns := bufio.NewScanner(r)
ns.Split(bufio.ScanWords)
sc := scanner{
r: r,
bs: *ns,
}
return &sc
}
func getTokenType(s string) tokentype {
return Nothing
}
func (s *scanner) Next() (tokentype, string, error) {
more := s.bs.Scan()
if !more {
err := s.bs.Err()
if err != nil {
return Nothing, "", err
}
return Nothing, "", io.EOF
}
tokstr := s.bs.Text()
token := getTokenType(tokstr)
return token, tokstr, nil
}
func (s *scanner) peek() (tokentype, string, error) {
return Nothing, "", nil
}
|