nntp/group.go at master · sstutz/nntp · GitHub

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
64
65
66
67
68
69
70
71
72
73
package nntp

import (
	"net/textproto"
	"strconv"
	"strings"
)

type Group struct {
	Name   string
	Number int
	High   int
	Low    int
	Mode   string
}

type GroupListing struct {
	Number, Low, High int
	Group             string
	Range             []int
}

func groupFromLine(line string) (*Group, error) {
	var number, high, low int
	var err error

	params := strings.SplitN(strings.TrimSpace(line), " ", 4)

	if len(params) < 4 {
		return nil, textproto.ProtocolError("unexpected end of GROUP line")
	}

	if number, err = strconv.Atoi(params[0]); err != nil {
		return nil, textproto.ProtocolError("")
	}

	if low, err = strconv.Atoi(params[1]); err != nil {
		return nil, textproto.ProtocolError("")
	}

	if high, err = strconv.Atoi(params[2]); err != nil {
		return nil, textproto.ProtocolError("")
	}

	return &Group{
		Name:   params[3],
		Number: number,
		Low:    low,
		High:   high,
	}, nil
}

func groupFromListLine(line string) (*Group, error) {
	var high, low int
	var err error

	params := strings.Split(line, " ")

	if high, err = strconv.Atoi(params[1]); err != nil {
		return nil, err
	}

	if low, err = strconv.Atoi(params[2]); err != nil {
		return nil, err
	}

	return &Group{
		Name: params[0],
		High: high,
		Low:  low,
		Mode: params[3],
	}, nil
}