本文介紹作者寫的一個小工具，簡單的代碼中包含了C語言對字符串的處理技巧，對文本文件的簡單解析，二進制文件的數據復制的方法，以及格式化輸出文本文件的示例。

工具的輸入是如下內容的配置文件：

?

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;資源管理器配置腳本??

??

;以行為單位，每行不能超過255個字符??

;空行和以;開頭的注釋行會被忽略掉??

;每行都關聯一個資源文件，資源序號從0開始，依次遞增??

??

.\img\img128x128.bin??

.\snd\start.wav??

.\img\sheis1.bin??

.\snd\balloon.wav??

.\img\sheis2.bin??

工具的源代碼貼在這里：

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#include?<ctype.h>??

#include?<string.h>??

#include?<stdlib.h>??

#include?<stdio.h>??

??

/*?定義相關文件名?*/??

#define?CONFIG_FILE_NAME????????("config.txt")??

#define?RESPAK_FILE_NAME????????("resmm.bin")??

#define?ADDRS_C_FILE_NAME???????("resmm_addrs.c")??

??

/*?定義配置行最大的字符數?*/??

#define?LINE_CHARS??????(255)??

/*?定義復制文件數據時的緩沖區大小?*/??

#define?BUF_SIZE????????(8?*?1024)??

??

/*?從配置行提取文件名?*/??

static?char*?extract_file_name(const?char*?line,?char*?file_name)??

{??

????/*?過濾配置行左邊的空格符?*/??

????while(isspace(*line++)){};??

????line--;??

????/*?忽略空行和注釋行?*/??

????if((*line?==?'\0')?||?(*line?==?';'))??

????????return?NULL;??

??

????/*?提取文件名，并去掉右邊的空格符?*/??

????strcpy(file_name,?line);??

????{??

????????char*?p?=?file_name?+?strlen(file_name)?-?1;??

????????while(isspace(*p--)){};??

????????p++;??

????????p++;??

????????*p?=?'\0';??

????}??

??

????return?file_name;??

}??

??

/*?掃描有效文件數?*/??

static?int?scan_file_count(FILE*?cf)??

{??

????char?line[LINE_CHARS?+?1];??

????char?file_name[LINE_CHARS?+?1];??

????int?count?=?0;??

??

????while(!feof(cf))??

????{??

????????fgets(line,?LINE_CHARS,?cf);??

????????if(extract_file_name(line,?file_name)?!=?NULL)??

????????????count++;??

????}??

??

????return?count;??

}??

??

/*?復制文件數據?*/??

static?size_t?copy_file_datas(FILE*?pf,?FILE*?rf)??

{??

????unsigned?char?buf[BUF_SIZE];??

????size_t?total?=?0;??

????size_t?len;??

??

????do{??

????????len?=?fread(buf,?sizeof(unsigned?char),?BUF_SIZE,?rf);??

????????fwrite(buf,?sizeof(unsigned?char),?len,?pf);??

????????total?+=?len;??

????}while(len?==?BUF_SIZE);??

??

????return?total;??

}??

??

/*?主函數?*/??

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

{??

????FILE*?cf;??

????FILE*?pf;??

????FILE*?rf;??

????int?count;??

????size_t*?lens;??

????size_t?len;??

????unsigned?int?addr;??

????char?line[LINE_CHARS?+?1];??

????char?file_name[LINE_CHARS?+?1];??

????int?i;??

??

????/*?打開配置文件，并掃描有效文件數?*/??

????if((cf?=?fopen(CONFIG_FILE_NAME,?"rt"))?==?NULL)??

????{??

????????printf("Can\'t?open?%s!\n",?CONFIG_FILE_NAME);??

????????return?-1;??

????}??

????count?=?scan_file_count(cf);??

????fseek(cf,?0L,?SEEK_SET);??

??

????/*?打開資源包文件?*/??

????if((pf?=?fopen(RESPAK_FILE_NAME,?"wb"))?==?NULL)??

????{??

????????printf("Can\'t?create?%s!\n",?RESPAK_FILE_NAME);??

????????fclose(cf);??

????????return?-1;??

????}??

??

????/*?復制打包資源文件，并統計其大小?*/??

????if((lens?=?(size_t*)malloc(sizeof(size_t)?*?count))?==?NULL)??

????{??

????????printf("No?enough?memory!\n");??

????????fclose(pf);??

????????fclose(cf);??

????????return?-1;??

????}??

????i?=?0;??

????while(!feof(cf))??

????{??

????????fgets(line,?LINE_CHARS,?cf);??

????????if(extract_file_name(line,?file_name)?!=?NULL)??

????????{??

????????????if((rf?=?fopen(file_name,?"rb"))?==?NULL)??

????????????{??

????????????????printf("Can\'t?open?%s!\n",?file_name);??

????????????????fclose(pf);??

????????????????fclose(cf);??

????????????????return?-1;??

????????????}??

????????????if((len?=?copy_file_datas(pf,?rf))?==?0)??

????????????{??

????????????????printf("File?%s?is?empty!\n",?file_name);??

????????????????fclose(pf);??

????????????????fclose(cf);??

????????????????return?-1;??

????????????}??

????????????lens[i++]?=?len;??

????????????fclose(rf);??

????????}??

????}??

????fclose(pf);??

????fclose(cf);??

??

????/*?打開地址描述的C語言源文件?*/??

????if((cf?=?fopen(ADDRS_C_FILE_NAME,?"wt"))?==?NULL)??

????{??

????????printf("Can\'t?open?%s!\n",?ADDRS_C_FILE_NAME);??

????????return?-1;??

????}??

??

????/*?把各個資源的地址和長度信息寫入C語言數組?*/??

????fprintf(cf,?"#define?RES_COUNT\t(%d)\n\n",?count);??

????fprintf(cf,?"static?const?INT32U?addrs[RES_COUNT]?=?\n{\n");??

????addr?=?0;??

????for(i?=?0;?i?<?count;?i++)??

????{??

????????fprintf(cf,?"\t\t0x%08x,\n",?addr);??

????????addr?+=?lens[i];??

????}??

????fprintf(cf,?"};\n\n");??

????fprintf(cf,?"static?const?INT32U?lens[RES_COUNT]?=?\n{\n");??

????for(i?=?0;?i?<?count;?i++)??

????????fprintf(cf,?"\t\t0x%08x,\n",?lens[i]);??

????fprintf(cf,?"};");??

??

????fclose(cf);??

????free(lens);??

????return?0;??

}??

格式化輸出的文本文件是這樣的：

?

?

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#define?RES_COUNT???(5)??

??

static?const?INT32U?addrs[RES_COUNT]?=???

{??

????????0x00000000,??

????????0x00008000,??

????????0x0000889a,??

????????0x0001089a,??

????????0x0001219a,??

};??

??

static?const?INT32U?lens[RES_COUNT]?=???

{??

????????0x00008000,??

????????0x0000089a,??

????????0x00008000,??

????????0x00001900,??

????????0x00008000,??

}; ?

轉載于:https://www.cnblogs.com/pengkunfan/p/3486604.html

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