jmake 编译当前目录c/c++单文件 指定文件 可加选项

基础版本的jmake是将所有当前文件夹下的C/C++文件生成单文件编译命令，并且jmake命令不可加选项。

现在做的改进是能在输入命令jmake时加上一些选项了，‘-’开头的选项加入到每个编译单文件的生成命令中去，其他的选项则是指定要编译的源文件。当然，如果没有指定源文件，就把所有.c，.cc，.cpp文件都分别编译。

代码如下：

/*
 * author: huanglianjing
 *
 * this is a program to compile all single c/c++ file of current directory
 *
 * usage: jmake <files> <-options>
 * if no files assigned, all files in directory will be searched
 * any option will be added to every instruction
 */

#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <dirent.h>
#include <string.h>
#include <sys/stat.h>

][], option[][];
int filenum, optionnum;

];

int file_in_argv(char *filename)//whether filename in argv
{
    int i;
    ; i<filenum; ++i) {
        ) ;
    }
    ;
}

void suffix(char *filename)//get filetype, return empty string if not has
{
    int len = strlen(filename);
    int pos;
    ; pos>=; --pos) {
        if (filename[pos] == '.') break;
    }
     || pos == len-) suf[] = ;
    else {
        int i;
        ; i<len--pos; ++i) suf[i] = filename[pos++i];
        suf[len--pos] = ;
    }
}

int main(int argc, char *argv[])
{
    struct dirent *entry;
    struct stat statbuf;

    int i;
    filenum = optionnum = ;
    ; i<argc; ++i) {
        ] == '-') {//option
            strcpy(option[optionnum++],argv[i]);
        }
        else {//file
            strcpy(file[filenum++],argv[i]);
        }
    }

    DIR *dp = opendir(".");
    ;
    while ((entry=readdir(dp)) != NULL) {
        lstat(entry->d_name,&statbuf);
        if (!S_ISDIR(statbuf.st_mode)) {
            ], ename[], instruction[];
            strcpy(fname,entry->d_name);
            strcpy(ename,entry->d_name);
             || file_in_argv(fname)) ;//consider this file
            else continue;//not consider this file
            int len = strlen(fname);
            suffix(fname);
            ) {//.c
                ename[len-] = '\0';
                sprintf(instruction,"gcc %s -o %s",fname,ename);
                ; i<optionnum; ++i) {
                    strcat(instruction," ");
                    strcat(instruction,option[i]);
                }
                ++insnum;
                printf("%s\n",instruction);
                system(instruction);
            }
            ) {//.cc
                ename[len-] = '\0';
                sprintf(instruction,"g++ %s -o %s",fname,ename);
                ; i<optionnum; ++i) {
                    strcat(instruction," ");
                    strcat(instruction,option[i]);
                }
                ++insnum;
                printf("%s\n",instruction);
                system(instruction);
            }
            ) {//.cpp
                ename[len-] = '\0';
                sprintf(instruction,"g++ %s -o %s",fname,ename);
                ; i<optionnum; ++i) {
                    strcat(instruction," ");
                    strcat(instruction,option[i]);
                }
                ++insnum;
                printf("%s\n",instruction);
                system(instruction);
            }
        }
    }
    ) puts("no file compiled");

    closedir(dp);
    exit();
}