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11_33.cpp
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11_33.cpp
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#include <iostream>
#include <fstream>
#include <sstream>
#include <string>
#include <map>
using namespace std;
map<string, string> buildMap(ifstream &map_file)
{
map<string, string> trans_map;
string key;
string value;
while(map_file >> key && getline(map_file, value)){
if(value.size() > 1)
trans_map[key] = value.substr(1);
else
throw runtime_error("no rule for" + key);
}
return trans_map;
}
const string& transform(const string & key, const map<string, string> &trans_map)
{
auto map_it = trans_map.find(key);
//auto map_it = trans_map[key];
if(map_it != trans_map.cend())
return map_it->second;
else
return key;
}
void word_tranform(ifstream &map_file, ifstream &input)
{
auto trans_map = buildMap(map_file);
string text;
while(getline(input, text)){
istringstream stream(text);
string word;
bool firstword = true;
while(stream >> word){
if(firstword)
firstword = false;
else
cout << " ";
cout << transform(word, trans_map);
}
cout << endl;
}
}
int main()
{
ifstream rule_file("./data/11_33_map_rule.txt");
ifstream input_file("./data/11_33_input.txt");
word_tranform(rule_file,input_file);
return 0;
}