MSYSで変換される引数を元に戻すラッパー（不完全）

revert-args.cpp

#include <cstdio>
#include <vector>
#include <string>
#include <process.h>

using namespace std;

string root1 = "C:/MinGW/msys/1.0/";

string replace(const string &a, const string &b, const string &c) {
    string ret = a;
    int p;
    while ((p = ret.find(b)) >= 0)
        ret.replace(p, b.length(), c);
    return ret;
}

string root2 = replace(root1, "/", "\\");

bool prefix(const string &a, const string &b) {
    return a.substr(0, b.length()) == b;
}

int main(int argc, char *argv[]) {
    vector<string> args(argc - 1);
    vector<const char *> cargs(argc);
    for (int i = 1; i < argc; i++) {
        string arg = argv[i];
        if (prefix(arg, root1) || prefix(arg, root2)) {
            string arg2 = replace(arg.substr(root1.length()), ";", ":");
            int p1 = arg2.find('\\');
            int p2 = arg2.find(':');
            if (p1 < 0 || (p2 >= 0 && p2 < p1)) {
                arg = "/" + arg2;
            }
        } else if (arg.length() > 1 && arg[1] == ':') {
            if (arg.length() < 3 || arg[2] != '\\')
                arg = "/" + arg;
        }
        args[i - 1] = arg;
    }
    for (int i = 1; i < argc; i++) {
        cargs[i - 1] = args[i - 1].c_str();
        printf("%d: %s -> %s\n", i, argv[i], cargs[i - 1]);
    }
    return _spawnv(_P_WAIT, cargs[0], &cargs[0]);
}