-
-
Notifications
You must be signed in to change notification settings - Fork 456
/
array.go
186 lines (142 loc) · 3.51 KB
/
array.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
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
package types
import (
"fmt"
"log"
"strings"
)
// PDFArray represents a PDF array object.
type PDFArray []PDFObject
// NewStringArray returns a PDFArray with PDFStringLiteral entries.
func NewStringArray(sVars ...string) PDFArray {
a := PDFArray{}
for _, s := range sVars {
a = append(a, PDFStringLiteral(s))
}
return a
}
// NewNameArray returns a PDFArray with PDFName entries.
func NewNameArray(sVars ...string) PDFArray {
a := PDFArray{}
for _, s := range sVars {
a = append(a, PDFName(s))
}
return a
}
// NewNumberArray returns a PDFArray with PDFFloat entries.
func NewNumberArray(fVars ...float64) PDFArray {
a := PDFArray{}
for _, f := range fVars {
a = append(a, PDFFloat(f))
}
return a
}
// NewIntegerArray returns a PDFArray with PDFInteger entries.
func NewIntegerArray(fVars ...int) PDFArray {
a := PDFArray{}
for _, f := range fVars {
a = append(a, PDFInteger(f))
}
return a
}
func (array PDFArray) indentedString(level int) string {
logstr := []string{"["}
tabstr := strings.Repeat("\t", level)
first := true
sepstr := ""
for _, entry := range array {
if first {
first = false
sepstr = ""
} else {
sepstr = " "
}
if subdict, ok := entry.(PDFDict); ok {
dictstr := subdict.indentedString(level + 1)
logstr = append(logstr, fmt.Sprintf("\n%[1]s%[2]s\n%[1]s", tabstr, dictstr))
first = true
continue
}
if array, ok := entry.(PDFArray); ok {
arrstr := array.indentedString(level + 1)
logstr = append(logstr, fmt.Sprintf("%s%s", sepstr, arrstr))
continue
}
logstr = append(logstr, fmt.Sprintf("%s%v", sepstr, entry))
}
logstr = append(logstr, "]")
return strings.Join(logstr, "")
}
func (array PDFArray) String() string {
return array.indentedString(1)
}
// PDFString returns a string representation as found in and written to a PDF file.
func (array PDFArray) PDFString() string {
logstr := []string{}
logstr = append(logstr, "[")
first := true
var sepstr string
for _, entry := range array {
if first {
first = false
sepstr = ""
} else {
sepstr = " "
}
if entry == nil {
logstr = append(logstr, fmt.Sprintf("%snull", sepstr))
continue
}
subdict, ok := entry.(PDFDict)
if ok {
dictStr := subdict.PDFString()
logstr = append(logstr, fmt.Sprintf("%s", dictStr))
continue
}
array, ok := entry.(PDFArray)
if ok {
arrstr := array.PDFString()
logstr = append(logstr, fmt.Sprintf("%s", arrstr))
continue
}
indRef, ok := entry.(PDFIndirectRef)
if ok {
indRefstr := indRef.PDFString()
logstr = append(logstr, fmt.Sprintf("%s%s", sepstr, indRefstr))
continue
}
name, ok := entry.(PDFName)
if ok {
namestr := name.PDFString()
logstr = append(logstr, fmt.Sprintf("%s", namestr))
continue
}
i, ok := entry.(PDFInteger)
if ok {
logstr = append(logstr, fmt.Sprintf("%s%s", sepstr, i.String()))
continue
}
f, ok := entry.(PDFFloat)
if ok {
logstr = append(logstr, fmt.Sprintf("%s%s", sepstr, f.String()))
continue
}
b, ok := entry.(PDFBoolean)
if ok {
logstr = append(logstr, fmt.Sprintf("%s%s", sepstr, b.String()))
continue
}
sl, ok := entry.(PDFStringLiteral)
if ok {
logstr = append(logstr, fmt.Sprintf("%s%s", sepstr, sl.String()))
continue
}
hl, ok := entry.(PDFHexLiteral)
if ok {
logstr = append(logstr, fmt.Sprintf("%s%s", sepstr, hl.String()))
continue
}
log.Fatalf("PDFArray.PDFString(): entry of unknown object type: %[1]T %[1]v\n", entry)
}
logstr = append(logstr, "]")
return strings.Join(logstr, "")
}