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
|
// Copyright 2015 Matthew Holt and The Caddy Authors
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package caddyscript
import (
"fmt"
"regexp"
"go.starlark.net/starlark"
)
// Regexp represents a regexp type for caddyscript.
type Regexp struct{}
// AttrNames defines what properties and methods are available on the Time type.
func (r Regexp) AttrNames() []string {
return []string{"match_string"}
}
// Attr defines what happens when props or methods are called on the Time type.
func (r Regexp) Attr(name string) (starlark.Value, error) {
switch name {
case "match_string":
b := starlark.NewBuiltin("match_string", r.MatchString)
b = b.BindReceiver(r)
return b, nil
}
return nil, nil
}
// MatchString reports whether the string s contains any match of the regular expression pattern. More complicated queries need to use Compile and the full Regexp interface.
func (r Regexp) MatchString(thread *starlark.Thread, fn *starlark.Builtin, args starlark.Tuple, kwargs []starlark.Tuple) (starlark.Value, error) {
var pattern, match string
err := starlark.UnpackPositionalArgs(fn.Name(), args, kwargs, 2, &pattern, &match)
if err != nil {
return starlark.None, fmt.Errorf("could not unpack args: %v", err.Error())
}
matched, err := regexp.MatchString(pattern, match)
if err != nil {
return starlark.False, fmt.Errorf("matchstring: %v", err.Error())
}
return starlark.Bool(matched), nil
}
func (r Regexp) Freeze() {}
func (r Regexp) Hash() (uint32, error) { return 0, fmt.Errorf("unhashable: Regexp") }
func (r Regexp) String() string { return "Regexp" }
func (r Regexp) Type() string { return "Regexp" }
func (r Regexp) Truth() starlark.Bool { return true }
|
