GRegex输出空行的行号

#include

#include

#include

/**

*Print line no. of empty line

*gcc 004.c -o 004.app `pkg-config --cflags --libs glib-2.0`

*/

int main(int argc,char** argv){

    GRegex* regex = NULL;

    GMatchInfo* match_info = NULL;

    FILE* fp = fopen("./004.c","r");

    if(fp == NULL){

        g_print("%s\n",strerror(errno));

        return -1;

    }

    char line[1024];

    int line_no = 0;

    while(fgets(line,1024,fp)){

            line_no++;

   regex = g_regex_new("^$",0,0,NULL);

   g_regex_match(regex,line,0,&match_info);

   while(g_match_info_matches(match_info)){

g_match_info_next(match_info,NULL);

                g_print("%d:%s\n",line_no,"This is a blank line");

   }

   g_match_info_free(match_info);

   g_regex_unref(regex);

        

    }

    fclose(fp);

    return 0;

}