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
|
// License: GPLv3 Copyright: 2023, Kovid Goyal, <kovid at kovidgoyal.net>
package utils
import (
"bytes"
"compress/bzip2"
"encoding/binary"
"fmt"
"io"
)
var _ = fmt.Print
func ReadAll(r io.Reader, expected_size int) ([]byte, error) {
b := make([]byte, 0, expected_size)
for {
if len(b) == cap(b) {
// Add more capacity (let append pick how much).
b = append(b, 0)[:len(b)]
}
n, err := r.Read(b[len(b):cap(b)])
b = b[:len(b)+n]
if err != nil {
if err == io.EOF {
err = nil
}
return b, err
}
}
}
func ReadCompressedEmbeddedData(raw string) []byte {
compressed := UnsafeStringToBytes(raw)
uncompressed_size := binary.LittleEndian.Uint32(compressed)
r := bzip2.NewReader(bytes.NewReader(compressed[4:]))
ans, err := ReadAll(r, int(uncompressed_size))
if err != nil {
panic(err)
}
return ans
}
func ReaderForCompressedEmbeddedData(raw string) io.Reader {
return bzip2.NewReader(bytes.NewReader(UnsafeStringToBytes(raw)[4:]))
}
|
