forked from revel/revel
-
Notifications
You must be signed in to change notification settings - Fork 55
/
util.go
80 lines (70 loc) · 1.87 KB
/
util.go
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
74
75
76
77
78
79
80
// Various utility functions to make the standard library a bit easier to deal
// with.
package play
import (
"bytes"
"io"
"io/ioutil"
"net/url"
"reflect"
"regexp"
"strings"
)
// Add some more methods to the default Template.
type ExecutableTemplate interface {
Execute(io.Writer, interface{}) error
}
// Execute a template and returns the result as a string.
func ExecuteTemplate(tmpl ExecutableTemplate, data interface{}) string {
var b bytes.Buffer
tmpl.Execute(&b, data)
return b.String()
}
// Reads the lines of the given file. Panics in the case of error.
func MustReadLines(filename string) []string {
r, err := ReadLines(filename)
if err != nil {
panic(err)
}
return r
}
// Reads the lines of the given file. Panics in the case of error.
func ReadLines(filename string) ([]string, error) {
bytes, err := ioutil.ReadFile(filename)
if err != nil {
return nil, err
}
return strings.Split(string(bytes), "\n"), nil
}
func ContainsString(list []string, target string) bool {
for _, el := range list {
if el == target {
return true
}
}
return false
}
// Return the reflect.Method, given a Receiver type and Func value.
func FindMethod(recvType reflect.Type, funcVal *reflect.Value) *reflect.Method {
// It is not possible to get the name of the method from the Func.
// Instead, compare it to each method of the Controller.
for i := 0; i < recvType.NumMethod(); i++ {
method := recvType.Method(i)
if method.Func == *funcVal {
return &method
}
}
return nil
}
var (
cookieKeyValueParser = regexp.MustCompile("\x00([^:]*):([^\x00]*)\x00")
)
// Takes the raw (escaped) cookie value and parses out key values.
func ParseKeyValueCookie(val string, cb func(key, val string)) {
val, _ = url.QueryUnescape(val)
if matches := cookieKeyValueParser.FindAllStringSubmatch(val, -1); matches != nil {
for _, match := range matches {
cb(match[1], match[2])
}
}
}