C中的双重分裂 [英] Double split in C

问题描述

好的.例如，我的 txt 文件中有这一行:

OK. For example I have this line in my txt file:

1|1,12;7,19;6,4;8,19;2,2
如您所见，它有 2 个部分，由 | 分隔.我得到两个部分都没有问题，并使用 ; 分隔符分隔第二部分 1,12;7,19;6,4;8,19;2,2 .但是我确实在通过 , 进一步分离以获得每个集合的第一个和第二个数字时遇到问题.

1|1,12;7,19;6,4;8,19;2,2
As you can see, it has 2 parts, separated by |. I have no problems getting both parts, and separating second part 1,12;7,19;6,4;8,19;2,2 using ; separator. BUT I do have problems with separating further by , to get first and second number of each set.

这是我当前的代码:

  result = strtok(result, ";");

  while(result != NULL ) {
      printf("%s\n", result);
      result = strtok(NULL, ";");
  }

它输出我:

1,12
7,19
6,4
8,19
2,2

1,12
7,19
6,4
8,19
2,2

好的，太好了.但是当我尝试strtok"时(我正在使用这种方法进行拆分)像这样:

OK, great. But when I try to 'strtok' (I'm using this method for splitting) like this:

 result = strtok(result, ";");

 while(result != NULL ) {
     //printf("%s\n", result);
     help    = strtok(result, ",");    
     while(help != NULL) {
         printf("<%s>", help);
         help = strtok(NULL, ",");
     }

     result  = strtok(NULL, ";");
 }

我只得到 "<1>,<12>" 就像在这组数字中只有一组一样.我不明白其余的数字在哪里.相反，输出应该是:<1>、<12>、<7>、<19>、<6>、<4>、<8>、<19>、<2>，＜2＞.有人可以给出解决方案，如何获得每组数字的每个数字.也许还有其他方法，或者我做错了什么:)

I only get "<1>,<12>" like there is only one set in this set of numbers. I dont understand where are the rest of the numbers. Instead, output should be: <1>,<12>,<7>,<19>,<6>,<4>,<8>,<19>,<2>,<2>. Could someone please give a solution, how to get EACH number of each set this set of numbers. Maybe there are other methods or I'm doing something wrong :)

谢谢！

推荐答案

char *strtok(c​​har *str, const char *delim);(来自手册页)
delim 参数指定一组字符，用于分隔解析字符串中的标记.在解析相同字符串的连续调用中，调用者可以在 delim 中指定不同的字符串.

char *strtok(char *str, const char *delim); (from man pages)
The delim argument specifies a set of characters that delimit the tokens in the parsed string. The caller may specify different strings in delim in successive calls that parse the same string.

因此，同时使用 ; 和 , 作为分隔符来获取所有数字.

So, use both ; and , as delimiter to get all the numbers.

//this will delimit result whenever ";" or "," is found
result = strtok(result, ";,"); 

while(result != NULL ) {
    printf("%s\n", result);
    result = strtok(NULL, ";,");
}

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