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#include <ctype.h>

#include <errno.h>

#include <regex.h>

#include <stdio.h>

#include <stdlib.h>

#include <string.h>

#include <sys/types.h>

#include <limits.h>

#include "main.h"

#define to_find "^[a-zA-Z0-9]+$"

int main(int argc, char * argv[])

{

int ret_val;

regex_t regex;

FILE *fp;

char file[PATH_MAX];

char line[1024];

if (regcomp(&regex, to_find, REG_EXTENDED) != 0)

{

fprintf(stderr, "Failed to compile regex '%s'\n", to_find);

return EXIT_FAILURE;

}

if (argc > 2)

{

printf("Usage: tree OR tree [filename]\n");

return EXIT_FAILURE;

}

else if (argc == 2)

{

fp = fopen(strcat(argv[1],".dat"), "r");

sprintf(file, "%s.dat", argv[1]);

fp = fopen(file, "r");

if( fp == NULL ) {

perror("Error");

return -1;

}

printf("file opened\n");

while ((fgets(line, 1024, fp)) != NULL)

while (fscanf(fp, "%1023s", line) > 0)

{

line[strlen(line) - 1] = '\0';

if ((ret_val = regexec(&regex, line, 0, NULL, 0)) != 0)

if ((ret_val = regexec(&regex, line, 0, NULL, 0)) != 0);

{

printf("Error: %s\n", line);

printf("Not match: %s\n", line);

return EXIT_FAILURE;

//return EXIT_FAILURE;

} else {

printf("Match: %s\n", line);

}

regfree(&regex);

fclose(fp);

printf("File closed\n");

}

return 0;

}

Diferenças salvas

Texto original

Abrir arquivo

#include <ctype.h>
#include <errno.h>
#include <regex.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/types.h>

#include "main.h"

int main(int argc, char * argv[])
{
    int ret_val;
    regex_t regex;
    FILE *fp;
    char line[1024];

if (regcomp(&regex, to_find, REG_EXTENDED) != 0)
     {
        fprintf(stderr, "Failed to compile regex '%s'\n", to_find);
        return EXIT_FAILURE;
     }

if (argc > 2)
    {
        printf("Usage: tree OR tree [filename]\n");
        return EXIT_FAILURE;
    }

else if (argc == 2)
    {
        fp = fopen(strcat(argv[1],".dat"), "r");

printf("file opened\n");
        while ((fgets(line, 1024, fp)) != NULL)
        {
            line[strlen(line) - 1] = '\0';
            if ((ret_val = regexec(&regex, line, 0, NULL, 0)) != 0);
            {
                printf("Error: %s\n", line);
                return EXIT_FAILURE;
            }
        }

fclose(fp);
        printf("File closed\n");        
    }

return 0;
}

Texto alterado

Abrir arquivo

#include <ctype.h>
#include <errno.h>
#include <regex.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/types.h>
#include <limits.h>

#define to_find "^[a-zA-Z0-9]+$"

int main(int argc, char * argv[])
{
    int ret_val;
    regex_t regex;
    FILE *fp;
    char file[PATH_MAX];
    char line[1024];

if (regcomp(&regex, to_find, REG_EXTENDED) != 0)
     {
        fprintf(stderr, "Failed to compile regex '%s'\n", to_find);
        return EXIT_FAILURE;
     }

if (argc > 2)
    {
        printf("Usage: tree OR tree [filename]\n");
        return EXIT_FAILURE;
    }

else if (argc == 2)
    {
        sprintf(file, "%s.dat", argv[1]);
        fp = fopen(file, "r");
        if( fp == NULL ) {
            perror("Error");
            return -1;
        }

printf("file opened\n");
        while (fscanf(fp, "%1023s", line) > 0)
        {
            if ((ret_val = regexec(&regex, line, 0, NULL, 0)) != 0)
            {
                printf("Not match: %s\n", line);
                //return EXIT_FAILURE;
            } else {
                printf("Match: %s\n", line);
            }
        }

regfree(&regex);
        fclose(fp);
        printf("File closed\n");        
    }

return 0;
}