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
63
|
// grammar of the config file
//
// config = module module module
// module = name object
// name = 'input' | 'filter' | 'etc.'
// object = '{' keyvalue | keyvalue | ... '}'
// keyvalue = statement '=>' value
// statement = name | if
// value = literal | '[' literal ']'
// literal = '"' name '"'
package conf
import (
"fmt"
"io"
"os"
)
// Having a Config to Manager function could be nice?
// Or we could just return a Manager from here.
type Config struct {
}
type parser struct {
s scanner
last token
cur token
}
func newParser(s *scanner) *parser {
p := &parser{
s: *s,
}
return p
}
func NewConfig(r io.Reader) *Config {
p := newParser(newScanner(r))
p.startparsing()
return &Config{}
}
func (p *parser) startparsing() {
var err error
p.last = p.cur
p.cur, err = p.s.Scan()
for err == nil {
fmt.Fprintf(os.Stderr, "tokentype: %d, token: %q offset: %d, line: %d\n", p.cur.Type, p.cur.Lit, p.cur.Offset, p.cur.LineNr)
p.last = p.cur
p.cur, err = p.s.Scan()
}
fmt.Fprintf(os.Stderr, "Error: tokentype: %d, token: %q, err: %v\n", p.cur.Type, p.cur.Lit, err)
}
func (p *parser) module(name string) {
}
func (p *parser) object() {
}
|