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
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
|
// Copyright 2015 xeipuuv ( https://github.com/xeipuuv )
//
// 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.
// author xeipuuv
// author-github https://github.com/xeipuuv
// author-mail xeipuuv@gmail.com
//
// repository-name gojsonschema
// repository-desc An implementation of JSON Schema, based on IETF's draft v4 - Go language.
//
// description Various utility functions.
//
// created 26-02-2013
package gojsonschema
import (
"encoding/json"
"fmt"
"math"
"reflect"
"strconv"
)
func isKind(what interface{}, kind reflect.Kind) bool {
return reflect.ValueOf(what).Kind() == kind
}
func existsMapKey(m map[string]interface{}, k string) bool {
_, ok := m[k]
return ok
}
func isStringInSlice(s []string, what string) bool {
for i := range s {
if s[i] == what {
return true
}
}
return false
}
func marshalToJsonString(value interface{}) (*string, error) {
mBytes, err := json.Marshal(value)
if err != nil {
return nil, err
}
sBytes := string(mBytes)
return &sBytes, nil
}
func isJsonNumber(what interface{}) bool {
switch what.(type) {
case json.Number:
return true
}
return false
}
func checkJsonNumber(what interface{}) (isValidFloat64 bool, isValidInt64 bool, isValidInt32 bool) {
jsonNumber := what.(json.Number)
_, errFloat64 := jsonNumber.Float64()
_, errInt64 := jsonNumber.Int64()
isValidFloat64 = errFloat64 == nil
isValidInt64 = errInt64 == nil
_, errInt32 := strconv.ParseInt(jsonNumber.String(), 10, 32)
isValidInt32 = isValidInt64 && errInt32 == nil
return
}
// same as ECMA Number.MAX_SAFE_INTEGER and Number.MIN_SAFE_INTEGER
const (
max_json_float = float64(1<<53 - 1) // 9007199254740991.0 2^53 - 1
min_json_float = -float64(1<<53 - 1) //-9007199254740991.0 -2^53 - 1
)
func isFloat64AnInteger(f float64) bool {
if math.IsNaN(f) || math.IsInf(f, 0) || f < min_json_float || f > max_json_float {
return false
}
return f == float64(int64(f)) || f == float64(uint64(f))
}
func mustBeInteger(what interface{}) *int {
if isJsonNumber(what) {
number := what.(json.Number)
_, _, isValidInt32 := checkJsonNumber(number)
if isValidInt32 {
int64Value, err := number.Int64()
if err != nil {
return nil
}
int32Value := int(int64Value)
return &int32Value
} else {
return nil
}
}
return nil
}
func mustBeNumber(what interface{}) *float64 {
if isJsonNumber(what) {
number := what.(json.Number)
float64Value, err := number.Float64()
if err == nil {
return &float64Value
} else {
return nil
}
}
return nil
}
// formats a number so that it is displayed as the smallest string possible
func resultErrorFormatJsonNumber(n json.Number) string {
if int64Value, err := n.Int64(); err == nil {
return fmt.Sprintf("%d", int64Value)
}
float64Value, _ := n.Float64()
return fmt.Sprintf("%g", float64Value)
}
// formats a number so that it is displayed as the smallest string possible
func resultErrorFormatNumber(n float64) string {
if isFloat64AnInteger(n) {
return fmt.Sprintf("%d", int64(n))
}
return fmt.Sprintf("%g", n)
}
func convertDocumentNode(val interface{}) interface{} {
if lval, ok := val.([]interface{}); ok {
res := []interface{}{}
for _, v := range lval {
res = append(res, convertDocumentNode(v))
}
return res
}
if mval, ok := val.(map[interface{}]interface{}); ok {
res := map[string]interface{}{}
for k, v := range mval {
res[k.(string)] = convertDocumentNode(v)
}
return res
}
return val
}
|
