37 lines
953 B
C++
37 lines
953 B
C++
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#include "freq_analyser.hh"
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#define DEBUG 0
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namespace LibCryptAfinity {
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std::list<TextCounter> FreqAnalyser::getPriorities(Text text, int keylen, int column){
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std::list<TextCounter> result;
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std::map<Text, int> counter;
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std::map<Text, int>::iterator countIt;
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int i;
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for (i=0; i<text.size(); i += keylen) {
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Text letter;
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letter.push_back(text[i+column]);
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if (counter.find(letter) == counter.end()){
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counter[letter] = 1;
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} else {
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counter[letter] = counter[letter] + 1;
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}
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}
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// on relit le map et on cr<63>e la liste...
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pDEBUG("FreqAnaliser","Column %d\n", column);
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for (countIt = counter.begin(); countIt != counter.end(); countIt++){
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TextCounter tc;
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tc.setText(countIt->first);
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tc.setCount(countIt->second);
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pDEBUG("FreqAnalyser"," Letter %s found %d times\n",tc.getText().toString().c_str(), tc.getCount());
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result.push_back(tc);
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}
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result.sort();
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result.reverse();
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return result;
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}
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}
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