iconv-go/examples/sample.go

107 lines
3.6 KiB
Go

package main
import (
"encoding/hex"
"fmt"
iconv "github.com/djimenez/iconv-go"
"io/ioutil"
"os"
)
func main() {
// read bytes from sample.utf8
utf8Bytes, err := ioutil.ReadFile("sample.utf8")
if err != nil {
fmt.Println("Could not open 'sample.utf8': ", err)
}
// read bytes from sample.ebcdic-us
ebcdicBytes, err := ioutil.ReadFile("sample.ebcdic-us")
if err != nil {
fmt.Println("Could not open 'sample.ebcdic-us': ", err)
}
// use iconv to check conversions both ways
utf8String := string(utf8Bytes)
ebcdicString := string(ebcdicBytes)
// convert from utf-8 to ebcdic
utf8ConvertedString, err := iconv.ConvertString(utf8String, "utf-8", "ebcdic-us")
if err != nil || ebcdicString != utf8ConvertedString {
// generate hex string
ebcdicHexString := hex.EncodeToString(ebcdicBytes)
utf8ConvertedHexString := hex.EncodeToString([]byte(utf8ConvertedString))
fmt.Println("utf-8 was not properly converted to ebcdic-us by iconv.ConvertString, error: ", err)
fmt.Println(ebcdicHexString, " - ", len(ebcdicString))
fmt.Println(utf8ConvertedHexString, " - ", len(utf8ConvertedString))
} else {
fmt.Println("utf-8 was properly converted to ebcdic-us by iconv.ConvertString")
}
// convert from ebcdic to utf-8
ebcdicConvertedString, err := iconv.ConvertString(ebcdicString, "ebcdic-us", "utf-8")
if err != nil || utf8String != ebcdicConvertedString {
// generate hex string
utf8HexString := hex.EncodeToString(utf8Bytes)
ebcdicConvertedHexString := hex.EncodeToString([]byte(ebcdicConvertedString))
fmt.Println("ebcdic-us was not properly converted to utf-8 by iconv.ConvertString, error: ", err)
fmt.Println(utf8HexString, " - ", len(utf8String))
fmt.Println(ebcdicConvertedHexString, " - ", len(ebcdicConvertedString))
} else {
fmt.Println("ebcdic-us was properly converted to utf-8 by iconv.ConvertString")
}
testBuffer := make([]byte, len(ebcdicBytes)*2)
// convert from ebdic bytes to utf-8 bytes
bytesRead, bytesWritten, err := iconv.Convert(ebcdicBytes, testBuffer, "ebcdic-us", "utf-8")
if err != nil || bytesRead != len(ebcdicBytes) || bytesWritten != len(utf8Bytes) {
fmt.Println("ebcdic-us was not properly converted to utf-8 by iconv.Convert, error: ", err)
} else {
fmt.Println("ebcdic-us was properly converted to utf-8 by iconv.Convert")
}
// convert from utf-8 bytes to ebcdic bytes
bytesRead, bytesWritten, err = iconv.Convert(utf8Bytes, testBuffer, "utf-8", "ebcdic-us")
if err != nil || bytesRead != len(utf8Bytes) || bytesWritten != len(ebcdicBytes) {
fmt.Println("utf-8 was not properly converted to ebcdic-us by iconv.Convert, error: ", err)
} else {
fmt.Println("utf-8 was properly converted to ebcdic-us by iconv.Convert")
}
// test iconv.Reader
utf8File, _ := os.Open("sample.utf8")
utf8Reader, _ := iconv.NewReader(utf8File, "utf-8", "ebcdic-us")
bytesRead, err = utf8Reader.Read(testBuffer)
if err != nil || bytesRead != len(ebcdicBytes) {
fmt.Println("utf8 was not properly converted to ebcdic-us by iconv.Reader", err)
} else {
fmt.Println("utf8 was property converted to ebcdic-us by iconv.Reader")
}
ebcdicFile, _ := os.Open("sample.ebcdic-us")
ebcdicReader, _ := iconv.NewReader(ebcdicFile, "ebcdic-us", "utf-8")
bytesRead, err = ebcdicReader.Read(testBuffer)
if err != nil || bytesRead != len(utf8Bytes) {
fmt.Println("ebcdic-us was not properly converted to utf-8 by iconv.Reader: ", err)
if bytesRead > 0 {
fmt.Println(string(testBuffer[:bytesRead]))
fmt.Println(hex.EncodeToString(testBuffer[:bytesRead]))
fmt.Println(hex.EncodeToString(utf8Bytes))
}
} else {
fmt.Println("ebcdic-us was properly converted to utf-8 by iconv.Reader")
}
}