将未编码的字符串转换为C中的对应字符串 [英] Convert unicoded string to corresponding string in C
问题描述
我需要将未编码的字符串转换为其适当的语言。我需要逐行读取文本文件。
I need to convert a unicoded string to its appropriate language. I need to read from a text file line by line. There is a possibility that a line may contain a unicode some thing like this
\xE6\xAC\xA2\xE8＼ \xBF\x8E
\xE6\xAC\xA2\xE8\xBF\x8E
这基本上是中文文本，等于
This is basically a chinese text which is equal to
欢迎
欢迎
现在我需要删除此行（\xE6\xAC\ xA2\xE8\xBF\x8E），将此unicode转换为中文文本，然后将此中文文本附加到文本文件中。
Now I need to remove this line (\xE6\xAC\xA2\xE8\xBF\x8E) from text file, convert this unicode to chinese text, append this chinese text to the text file.
下面是内容我的data.txt文件：
Below is the content of my data.txt file:
testing
programming
\xE6\xAC\xA2\xE8\xBF\x8E
development
我想获取文件内容为：
testing
programming
development
欢迎
以下是我到目前为止所做的事情
Below is what I have done so far
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#define MAX 256
int main()
{
int ctr = 0;
char ch;
FILE *fptr1, *fptr2;
char fname[MAX] = "data.txt";
char str[MAX], temp[] = "temp.txt";
char str2[256];
fptr1 = fopen(fname, "r");
if (!fptr1)
{
printf(" File not found or unable to open the input file!!\n");
return 0;
}
fptr2 = fopen(temp, "w"); // open the temporary file in write mode
if (!fptr2)
{
printf("Unable to open a temporary file to write!!\n");
fclose(fptr1);
return 0;
}
// copy all contents to the temporary file except the specific line with unicode characters
while (!feof(fptr1))
{
strcpy(str, "\0");
fgets(str, MAX, fptr1);
if (!feof(fptr1))
{
ctr++;
if(strstr(str,"\\")!=NULL)
{
memset(str2,'\0',sizeof(str2));
printf("Input String Contains Unicode Character\n");
str[strlen(str)-1]='\0';
sprintf(str2,"echo %s >> data.txt",str);
printf("Final String: %s\nUnicode String Size: %ld\n",str2,strlen(str));
system(str2);
}
else
{
fprintf(fptr2, "%s", str);
}
}
}
fclose(fptr1);
fclose(fptr2);
remove(fname); // remove the original file
rename(temp, fname); // rename the temporary file to original name
/*------ Read the file ----------------*/
fptr1=fopen(fname,"r");
ch=fgetc(fptr1);
printf(" Now the content of the file %s is : \n",fname);
while(ch!=EOF)
{
printf("%c",ch);
ch=fgetc(fptr1);
}
fclose(fptr1);
/*------- End of reading ---------------*/
return 0;
}
在尝试编译并运行此代码时，下面是我看到的输出
When tried to compile and run this code, below is the output I am seeing
Input String Contains Unicode Character
Final String: echo \xE6\xAC\xA2\xE8\xBF\x8E >> data.txt
Unicode String Size: 24
Now the content of the file data.txt is :
testing
programming
development
xE6xACxA2xE8xBFx8E
相同的代码在更改以下几行时，按预期运行
The same code when changed the below lines, it was working as expected
sprintf(str2,"echo %s >> data.txt",str);
sprintf(str2,"echo %s >> data.txt","\xE6\xAC\xA2\xE8\xBF\x8E");
但是当从文件中读取值时，它将无法正常工作。
But when the value is read from file it was not working.
在这一行中，该字符串也被标识为具有正确大小的Unicode字符串
Also this line, the string is identified as unicode string with correct size
printf("Final String: %s\nUnicode String Size: %ld\n",str2,strlen(str));
The String Size: 6
请问有人，如何转换从文本文件中读取时，将值转换为中文。
Can some one please let me know, how to convert the value to chinese when read from text file.
推荐答案
我能够完成转换。下面是我的最终代码
I was able to get the conversion done. Below is my final code
if(strstr(str,"\\")!=NULL)
{
memset(str2,'\0',sizeof(str2));
printf("Input String Contains Unicode Character\n");
str[strlen(str)-1]='\0';
sprintf(str2,"echo %s | sed \'s/[\\\\x]//g\' | xxd -r -p >> data.txt",str);
printf("Final String: %s\nUnicode String Size: %ld\n",str2,strlen(str));
system(str2);
}
感谢您的所有回复，并感谢@chux提出的建议
Thanks for all your response and thanks @chux for your pointer
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