C語言實現中英文字幕合併

以下程序實現將一箇中文字幕和一個英文字幕合併成一箇中英字幕。

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#define SUBFORM ".srt*"

long FileRow(char *filepath) /*讀取文件行數*/
{
    FILE *fp;
    long row_count = 0;
    char c;

    if((fp = fopen(filepath, "r")) == NULL)
    {
        perror("Can't open!");
        exit(1);
    }

    while(!feof(fp))
    {
        if(c = fgetc(fp) == '\n')
            row_count++;
    }

    fclose(fp);
    return row_count;
}

void chs_eng(char *filepath_eng, char *filepath_chs)
{
    char **engsub; /*按時間段存取所有英文字幕*/
    char *chs_time_buf; /*存取每一行的中文時間*/
    char *chs_str_buf; /*存取每一行的中文字幕*/
    FILE *fp_eng, *fp_chs, *fp_new;
    char *buf; /*每一行數據緩存*/
    char *filepath_new;
    int index = 0, englen = 0;
    long row_count = 0;

    if((fp_eng = fopen(filepath_eng, "r")) == NULL)
    {
        perror("Faile to popen\n");
        exit(1);
    }
    if((fp_chs = fopen(filepath_chs, "r")) == NULL)
    {
        perror("Faile to popen\n");
        exit(1);
    }
    filepath_new = (char *)calloc(strlen(filepath_chs) + 5, sizeof(char));
    strcpy(filepath_new, filepath_chs);
    strcat(filepath_new, "*");
    if(strstr(filepath_new, SUBFORM) == false)
    {
        perror("Subfile type wrong!");
        exit(1);
    }
    *strstr(filepath_new, SUBFORM) = '\0';
    strcat(filepath_new, "_eng");
    strcat(filepath_new, SUBFORM);
    *(filepath_new + strlen(filepath_new) - 1) = '\0';
    if((fp_new = fopen(filepath_new, "wb+")) == NULL)
    {
        perror("Faile to popen\n");
        exit(1);
    }

    if(FileRow(filepath_eng) > FileRow(filepath_chs)) row_count = FileRow(filepath_eng);
    else row_count = FileRow(filepath_chs);
    engsub = (char **)calloc(row_count / 3, sizeof(char *));
    chs_time_buf = (char *)calloc(128, sizeof(char));
    chs_str_buf = (char *)calloc(128, sizeof(char));
    buf = (char *)calloc(128, sizeof(char));

    while(!feof(fp_eng)) /*遍歷英文字幕文件，存取數據*/
    {
        fgets(buf, 128, fp_eng);
        if(strstr(buf, "-->") != NULL)
        {
            engsub[index] = (char *)calloc(128, sizeof(char));
            while(!feof(fp_eng))
            {
                fgets(buf, 128, fp_eng);
                if(strcmp(buf, "\n") == 0) break;
                strcat(engsub[index], buf);
            }
            index++;
        }
    }

    englen = index;
	index = 0;
    while(!feof(fp_chs) && index < englen) /*遍歷中文字幕文件，存取數據*/
    {
        fgets(buf, 128, fp_chs);
        if(strstr(buf, "-->") != NULL)
        {
            if(index > 0 && strcmp(buf, chs_time_buf) == 0) continue;
            strcpy(chs_time_buf, buf);
            strcpy(chs_str_buf, "");
            while(!feof(fp_chs) && index < englen)
            {
                fgets(buf, 128, fp_chs);
                if(strcmp(buf, "\n") == 0)
                {
					strcat(chs_str_buf, engsub[index]); /*如果遇到空行，添加英文字幕*/
					break;
                }
                strcat(chs_str_buf, buf);
            }
            if(strstr(chs_str_buf, "{")) continue;
            fprintf(fp_new, "%d\n", index + 1);
            fputs(chs_time_buf, fp_new);
            fputs(chs_str_buf, fp_new);
            fputs("\n", fp_new);
            index++;
        }
    }

    for(index = 0; index < englen; index++)
		free(engsub[index]);
    free(engsub);
    free(filepath_new);
    free(chs_time_buf);
    free(chs_str_buf);
    free(buf);
    fclose(fp_chs);
    fclose(fp_eng);
    fclose(fp_new);
}

int main()
{
    char *filepath_eng = "D:\\文檔\\CB\\sub\\subfile\\Elementary.S02E24.720p.HDTV.X264-DIMENSION.英文.srt";
    char *filepath_chs = "D:\\文檔\\CB\\sub\\subfile\\Elementary.S02E24.720p.HDTV.X264-DIMENSION.簡體.srt";

    chs_eng(filepath_eng, filepath_chs);

	return 0;
}