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#include "line_accumulator.h"
#include <iostream>
#include <algorithm>
LineAccumulator::LineAccumulator(const std::size_t max_length):
max_length_{max_length},
random_{},
length_{0},
tokens_{} { }
LineAccumulator::~LineAccumulator() {
this->discharge(false);
}
void LineAccumulator::operator()(const std::string& word) {
if ( ( this->length_ + word.length() ) > this->max_length_ ) {
this->discharge(true);
}
this->tokens_.emplace_back(word, 0);
this->length_ += word.length();
if ( this->length_ < this->max_length_ ) {
this->tokens_.back().second += 1;
this->length_ += 1;
}
}
void LineAccumulator::discharge(const bool full) {
if ( full ) {
this->length_ -= this->tokens_.back().second;
this->tokens_.back().second = 0;
const std::size_t missing = this->max_length_ - this->length_;
const std::size_t base = missing / (this->tokens_.size()-1);
std::for_each(
this->tokens_.begin(),
this->tokens_.end()-2,
[base, this](auto& token) {
token.second += base;
this->length_ += base;
}
);
auto range = this->random_.makeRange(0, this->tokens_.size()-2);
while ( this->length_ < this->max_length_ ) {
this->tokens_[range.get()].second += 1;
this->length_ += 1;
}
}
for ( const auto& token : this->tokens_ ) {
std::cout << token.first
<< std::string(token.second, ' ');
}
std::cout << '\n';
this->length_ = 0;
this->tokens_.clear();
}
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