c - 使用strtok分隔单词并删除, and ()

Question

我的程序应该采用一个短语并分隔所有单词并将它们打印在新行上，不带任何“，”，“(”或“)”。这是我的代码。到目前为止，它似乎有效，但如果可能的话，我想改进它。另外，我不知道这是否有问题，但它似乎从单个单词中删除了“(”和“)”，但不是两个都删除了。因此，“(test”或“test)”将按预期仅输出“test”，但“(test)”输出“test)”。不确定这是否可以......无论如何我该如何改进？

#include <stdio.h>
#include <string.h>

void function(char *string)
{
    const char delim[2] = " ";
    char *token;
    int n, i, j;

    token = strtok(string, delim);
    while (token != NULL) {
        n = strlen(token);
        if (strstr(token, ",")) {
            for (i = j = 0; i < n; i++) {
                if (token[i] != ',')
                    token[j++] = token[i];
            }
            token[j] = '\0';
        }else if (strstr(token, "(")) {
            for (i = j = 0; i < n; i++) {
                if (token[i] != '(')
                    token[j++] = token[i];
            }
            token[j] = '\0';
        } else if (strstr(token, ")")) {
            for (i = j = 0; i < n; i++) {
                if (token[i] != ')')
                    token[j++] = token[i];
            }
            token[j] = '\0';
        }

        printf("%s\n", token);
        token = strtok(NULL, delim);
    }
}

int main(void)
{
    char test[80] = "The next appointment is on the 7.1.2019, 10:00 a.m., in HS 1 (Building C)";
    char input[80];

    gets(input);
    function(test);
    function(input);
    return 0;
}

Answer 1

您可以像下面的代码一样进行操作:

#include <stdio.h>
#include <string.h>

void function(char *string)
{
    const char delim[10] = " ,()";
    char *token = strtok(string, delim);
    while (token != NULL) {
        printf("%s\n", token);
        token = strtok(NULL, delim);
    }
}

int main(void)
{
    char test[80] = "The next appointment is on the 7.1.2019, 10:00 a.m., in HS 1 (Building C)";

    function(test);

    return 0;
}

解释:

Each call to strtok() returns a pointer to a null-terminated string containing the next token. This string does not include the delimiting byte. If no more tokens are found, strtok() returns NULL.

参见http://man7.org/linux/man-pages/man3/strtok.3.html