package compress/lzw
Golang compress/lzw.NewReader() function usage example. For decompressing LZW-compressed data.
package main
import (
"compress/lzw"
"fmt"
"io"
"os"
)
func main() {
inputFile, err := os.Open("file.txt.lzw")
if err != nil {
fmt.Println(err)
os.Exit(1)
}
defer inputFile.Close()
outputFile, err := os.Create("file.txt")
if err != nil {
fmt.Println(err)
os.Exit(1)
}
defer outputFile.Close()
// file.txt.lzw compressed by
// https://socketloop.com/references/golang-compress-lzw-newwriter-function-example
// litWidth is set to 8
lzwReader := lzw.NewReader(inputFile, lzw.LSB, 8) //<----- here !
if err != nil {
fmt.Println(err)
os.Exit(1)
}
defer lzwReader.Close()
io.Copy(outputFile, lzwReader)
}
Reference :
https://golang.org/pkg/compress/lzw/#NewReader
