如何统计一个文件的行数

 


static int file_stat_info(char *file, long *size, long *line, long *word, long *long_max)




...{


#define    TMP_BUF_SIZE    8192


    char buf[TMP_BUF_SIZE];


    int buf_size = TMP_BUF_SIZE;




    FILE *fp = NULL;


    long file_size = 0;




    long file_line = 0;


    long file_word = 0;


    long line_long = 0;




    int read_count = 0;


    int read_size = 0;




    int word_in = 0;


    int word_out = 0;




    int long_tmp = 0;




    int i,j;




    if (fp = fopen(file, "rb"))




    ...{


        fseek(
4000
fp, 0, SEEK_END);


        file_size = ftell(fp);//size


        rewind(fp);




        if (file_size > 0)




        ...{


            file_line = 1;//line




            read_count = file_size/buf_size;


            read_count++;


        }




        for (i = 0; i < read_count; i++)




        ...{


            read_size = fread(buf, sizeof(char), buf_size, fp);


            if (read_size > 0)




            ...{


                for (j = 0; j < read_size; j++)




                ...{


                    //line


                    if (' ' == buf[j]) file_line++;




                    //word


                    if (' ' == buf[j] || ' ' == buf[j] || ' ' == buf[j] || ' ' == buf[j])




                    ...{


                        if (word_in)




                        ...{


                            file_word++;


                            word_in = 0;


                        }


                    }


                    else




                    ...{


                        word_in = 1;


                    }




                    //long_max


                    if (' ' == buf[j] || ' ' == buf[j])




                    ...{


                        long_tmp = 0;


                    }


                    else




                    ...{


                        long_tmp++;


                        if (long_tmp > line_long) line_long = long_tmp;


                    }


                }


                if (word_in) file_word++;//word


                if (long_tmp > line_long) line_long = long_tmp;//long_max


            }


        }




        if (size && file_size >= 0) *size = file_size;


        if (line && file_line >= 0) *line = file_line;


        if (word && file_word >= 0) *word = file_word;


        if (long_max && line_long >= 0) *long_max = line_long;




        fclose(fp);




        return 0;


    }




    return -1;


}