/
tosca_commons.go
74 lines (65 loc) · 2.39 KB
/
tosca_commons.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
// Copyright 2018 Bull S.A.S. Atos Technologies - Bull, Rue Jean Jaures, B.P.68, 78340, Les Clayes-sous-Bois, France.
//
// 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 tosca
import (
"strconv"
"strings"
"github.com/pkg/errors"
)
// UNBOUNDED is the maximum value of a Range
// Max uint64 as per https://golang.org/ref/spec#Numeric_types
const UNBOUNDED uint64 = 18446744073709551615
// An Range is the representation of a TOSCA Range Type
//
// See http://docs.oasis-open.org/tosca/TOSCA-Simple-Profile-YAML/v1.2/TOSCA-Simple-Profile-YAML-v1.2.html#TYPE_TOSCA_RANGE
// for more details
type Range struct {
LowerBound uint64
UpperBound uint64
}
// UnmarshalYAML unmarshals a yaml into a Range
func (r *Range) UnmarshalYAML(unmarshal func(interface{}) error) error {
var v []string
if err := unmarshal(&v); err != nil {
return err
}
if len(v) != 2 {
return errors.Errorf("Invalid range definition expected %d elements, actually found %d", 2, len(v))
}
bound, err := strconv.ParseUint(v[0], 10, 0)
if err != nil {
return errors.Errorf("Expecting a unsigned integer as lower bound of the range")
}
r.LowerBound = bound
if bound, err := strconv.ParseUint(v[1], 10, 0); err != nil {
if strings.ToUpper(v[1]) != "UNBOUNDED" {
return errors.Errorf("Expecting a unsigned integer or the 'UNBOUNDED' keyword as upper bound of the range")
}
r.UpperBound = UNBOUNDED
} else {
r.UpperBound = bound
}
return nil
}
func shouldQuoteYamlString(s string) bool {
return strings.ContainsAny(s, ":[],\"{}#") ||
strings.HasPrefix(strings.TrimSpace(s), "- ") ||
strings.HasPrefix(strings.TrimSpace(s), "*") ||
strings.HasPrefix(strings.TrimSpace(s), "?") ||
strings.HasPrefix(strings.TrimSpace(s), "|") ||
strings.HasPrefix(strings.TrimSpace(s), "!") ||
strings.HasPrefix(strings.TrimSpace(s), "%") ||
strings.HasPrefix(strings.TrimSpace(s), "@") ||
strings.HasPrefix(strings.TrimSpace(s), "&")
}