英文:
Unable to process strings in files with different encoding [Not accepting answers]
问题
我正在尝试处理一个特定文件中的字符串,该文件是用英文编写的。当文件的编码与"UTF-8"不同时,问题就出现了。但是,编码为"UTF-16-le"的文件的行为与预期不符。我的主要目标是操作读取文件中的字符串。例如,strings.TrimSpace()
只适用于UTF-8文件。
我知道golang默认只支持UTF-8,任何替代方法都将很有帮助。
个人问题
>另外,我想指出,许多新的编程语言在处理字符串时不考虑编码。为什么Go只支持UTF-8?如果至少有一种替代方法可以将编码格式传递给读取器,那可能仍然有所帮助。
我尝试过的方法
- 我尝试使用utf-8和utf-16标准包。
代码
(main.go)
展示差异的示例代码。
package main
import (
"fmt"
"io/ioutil"
"net/http"
"strings"
)
func processFile(src string) {
data, _ := ioutil.ReadFile(src)
fmt.Println("--- 原始源码 ---")
fmt.Println(string(data))
fmt.Println(http.DetectContentType(data))
fmt.Println("\n--- 修改后的源码 ---")
for _, val := range strings.Split(string(data), "\n") {
fmt.Println(strings.TrimSpace(val))
}
}
func main() {
processFile("./utf-16-english.txt")
processFile("./utf-8-english.txt")
}
文件-1
(utf-8-english.txt)
Hello
This is
Sample
Document
文件-2
(utf-16-english.txt)
Hello
This is
Sample
Document
编辑
-
看起来更好的处理字符串的唯一方法是将它们转换为UTF-8。请参考标记的答案。
-
根据评论,我已将程序的结果写入了相应的文件。特殊符号不再存在,但是使用字符串处理函数在UTF-8下工作正常。
英文:
I am trying to process the strings present in a particular file, The file is written in English. The problem arises when the encoding of the file differs from "UTF-8". But the file with encoding as "UTF-16-le" does not behave as expected. My main goal is manipulate the strings from the read file. For example the strings.TrimSpace()
only works with the UTF-8 file,
I am aware that golang only supports UTF-8 by default, Any alternate approach would be helpful.
Personal Question
>Also I would like to point out, many new programming languages, do process the strings irrespective of the encoding, And why does Go only support UTF-8. If at least there would be an alternative way to pass the encoding format to the reader, that might still help.
What I tried
- I tried using utf-8 and utf-16 std packages
Code
(main.go)
sample code to show the difference.
package main
import (
"fmt"
"io/ioutil"
"net/http"
"strings"
)
func processFile(src string) {
data, _ := ioutil.ReadFile(src)
fmt.Println("--- original source ---")
fmt.Println(string(data))
fmt.Println(http.DetectContentType(data))
fmt.Println("\n--- modified source ---")
for _, val := range strings.Split(string(data), "\n") {
fmt.Println(strings.TrimSpace(val))
}
}
func main() {
processFile("./utf-16-english.txt")
processFile("./utf-8-english.txt")
}
File-1
(utf-8-english.txt)
Hello
This is
Sample
Document
File-2
(utf-16-english.txt)
Hello
This is
Sample
Document
EDIT
-
Seems that the only way to process strings in a better way is to convert them to UTF-8. Kindly refer the marked answer.
-
As per comments I have written the result from the program to respective files. And the special symbols are not present, but the process with strings, works fine with UTF-8
答案1
得分: 0
你需要解码UTF-16编码的文件。解码将把输入转换为UTF-8,之后你可以使用字符串库来处理输入。
你可以使用类似下面的代码:
import "unicode/utf16"
func processFile(src string, decode func(in []byte) string) {
data, _ := ioutil.ReadFile(src)
fmt.Println("--- 原始源码 ---")
fmt.Println(decode(data))
fmt.Println("\n--- 修改后的源码 ---")
for _, val := range strings.Split(decode(data), "\n") {
fmt.Println(strings.TrimSpace(val))
}
}
func main() {
processFile("./utf-16-english.txt", func(in []byte) string {
return string(utf16.Decode(in))
})
processFile("./utf-8-english.txt", func(in []byte) string {
return string(in)
})
}
这段代码会帮助你解码UTF-16编码的文件,并将其转换为UTF-8格式。然后,你可以使用字符串库来处理输入。
英文:
You have to decode the utf-16 encoded file. The decoding will convert the input to utf-8, after which you can use the string libraries to process the input.
You can use something like this:
import "unicode/utf16"
func processFile(src string, decode func(in[]byte) string) {
data, _ := ioutil.ReadFile(src)
fmt.Println("--- original source ---")
fmt.Println(decode(data))
fmt.Println("\n--- modified source ---")
for _, val := range strings.Split(decode(data), "\n") {
fmt.Println(strings.TrimSpace(val))
}
}
func main() {
processFile("./utf-16-english.txt",func(in []byte) string {
return string(utf16.Decode(in)) })
processFile("./utf-8-english.txt",func(in []byte) string {
return string(in)})
}
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