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#include <map>
#include <string>
#include <fstream>
#include <iostream>
#include <set>
#include <algorithm>
#include <vector>
#include <cctype>
using namespace std;
class rec{
public:
string name;
string type;
string value;
bool operator==(const rec& r1) const {
return r1.name==this->name;
}
bool operator<(const rec& r1) const {
return r1.name<this->name;
}
friend ostream& operator<<(ostream& os, const rec& r);
};
ostream& operator<<(ostream& os, const rec& r) {
os << '[' << r.name << '|' << r.type << "](" << r.value << ")" << endl;
return os;
}
auto loadmap(ifstream& ifs) {
string line;
set<rec> res;
while(getline(ifs, line), ifs.good()) {
auto pos=line.find("-D");
if (pos==string::npos) {
continue;
}
while (pos+2<line.size() && (line[pos+2]==' ')) {
pos++;
}
pos+=2;
auto tpos=line.find(':', pos);
auto eqpos=line.find('=', pos);
auto end=line.find_last_of('\\');
if (eqpos==string::npos) {
continue;
}
if (end==string::npos) {
end=line.size()-1;
} else {
end-=1; // move back from the backslash
}
while (isspace(line[end])) {
end--;
}
rec r;
r.value=line.substr(eqpos+1, end-eqpos);
if (tpos!=string::npos) {
r.type=line.substr(tpos+1, eqpos-tpos-1);
} else {
tpos=eqpos; // type is missing so we pretend = and : coincide
}
r.name=line.substr(pos,tpos-pos);
res.insert(r);
//cout << r.name << ' ' << r.type << " " << r.value << endl;
}
return res;
}
int main(int argc, char** argv) {
if (argc!=3) {
cerr << argv[0] << " file1 file2\n";
return 1;
}
string line;
ifstream f1(argv[1]);
ifstream f2(argv[2]);
if (!f1 || !f2) {
cerr << "Can't open file\n";
return 2;
}
set<rec> r1=loadmap(f1);
set<rec> r2=loadmap(f2);
vector<rec> all;
vector<rec> only_left;
vector<rec> only_right;
vector<pair<rec,rec>> diff_types;
vector<pair<rec,rec>> diff_values;
all.reserve(r1.size()+r2.size());
set_union(r1.begin(), r1.end(), r2.begin(), r2.end(), inserter(all, all.begin()));
for (auto it=all.begin();it!=all.end();++it) {
const rec* lhs=0;
const rec* rhs=0;
for (auto il=r1.begin();il!=r1.end();++il) {
if (il->name==it->name) {
lhs=&(*il);
}
}
for (auto il=r2.begin();il!=r2.end();++il) {
if (il->name==it->name) {
rhs=&(*il);
}
}
if (rhs==0) {
only_left.push_back(*lhs);
} else if (lhs==0) {
only_right.push_back(*rhs);
} else if (lhs->value!=rhs->value) {
diff_values.push_back(pair<rec,rec>(*lhs, *rhs));
} else if (lhs->type!=rhs->type) {
diff_types.push_back(pair<rec,rec>(*lhs, *rhs));
} else {
}
}
if (!only_left.empty())
{
cout << "Only in LHS:\n";
for (auto it=only_left.begin();it!=only_left.end();++it) {
cout << " -D" << it->name;
if (!it->type.empty()) {
cout << ':' << it->type;
}
cout << '=' << it->value << " \\\n";
}
}
if (!only_right.empty())
{
cout << "Only in RHS:\n";
for (auto it=only_right.begin();it!=only_right.end();++it) {
cout << " -D" << it->name;
if (!it->type.empty()) {
cout << ':' << '{' << it->type << '}';
}
cout << '=' << it->value << " \\\n";
}
}
if (!diff_values.empty())
{
cout << "Different values:\n";
for (auto it=diff_values.begin();it!=diff_values.end();++it) {
cout << " " << it->first.name;
if (!it->first.type.empty()) {
cout << ':' << it->first.type;
} else if (!it->second.type.empty()) {
cout << ':' << it->second.type;
}
cout << " LHS=" << it->first.value << " RHS=" << it->second.value << endl;
}
}
if (!diff_types.empty()) {
cout << "Different types:\n";
for (auto it=diff_types.begin();it!=diff_types.end();++it) {
cout << " " << it->first.name;
cout << " LHS=" << it->first.type << " RHS=" << it->second.type << endl;
}
}
}
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