dtl/examples/fpatch.cpp
2024-06-03 09:59:35 -05:00

65 lines
1.2 KiB
C++

#include "common.hpp"
using dtl::Diff;
int main(int argc, char *argv[]) {
if (isFewArgs(argc)) {
std::cerr << "Too few arguments." << std::endl;
return -1;
}
std::string A(argv[1]);
std::string B(argv[2]);
bool fileExist = true;
if (!isFileExist(A)) {
std::cerr << "file A does not exist" << std::endl;
fileExist = false;
}
if (!isFileExist(B)) {
std::cerr << "file B does not exist" << std::endl;
fileExist = false;
}
if (!fileExist) {
return -1;
}
typedef std::string elem;
typedef std::vector<elem> sequence;
std::ifstream Aifs(A.c_str());
std::ifstream Bifs(B.c_str());
elem buf;
sequence ALines, BLines;
std::ostringstream ossLine, ossInfo;
while (getline(Aifs, buf)) {
ALines.push_back(buf);
}
while (getline(Bifs, buf)) {
BLines.push_back(buf);
}
Diff<elem> d(ALines, BLines);
d.compose();
sequence s1 = ALines;
sequence s2 = d.patch(s1);
// fpatch
assert(BLines == s2);
std::cout << "fpatch succeeded" << std::endl;
d.composeUnifiedHunks();
sequence s3 = d.uniPatch(s1);
// unipatch
assert(BLines == s3);
std::cout << "unipatch succeeded" << std::endl;
return 0;
}