fltrdr
/
src
/
fltrdr
/
fltrdr.hh
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175#ifndef FLTRDR_HH
#define FLTRDR_HH
#include "ob/timer.hh"
#include "ob/text.hh"
#include "ob/term.hh"
namespace aec = OB::Term::ANSI_Escape_Codes;
#include <cstddef>
#include <string>
#include <vector>
#include <sstream>
#include <iostream>
class Fltrdr
{
public:
// current rendered line
struct Line
{
std::string prev {};
std::string curr {};
std::string next {};
};
Fltrdr() = default;
void init();
bool parse(std::istream& input);
std::string content_id();
Fltrdr& screen_size(std::size_t const width, std::size_t const height);
bool eof();
void begin();
void end();
OB::Text::View buf_prev(std::size_t offset = 0);
OB::Text::View buf_next(std::size_t offset = 0);
void set_focus_point();
void set_line(std::size_t offset = 0);
Line get_line();
int get_wait();
void set_index(std::size_t i);
std::size_t get_index();
int get_wpm();
void set_wpm(int const i);
void inc_wpm();
void dec_wpm();
void set_wpm_avg(int const i);
int get_wpm_avg();
void calc_wpm_avg();
std::string get_stats();
void set_show_line(bool const val);
bool get_show_line();
void set_show_prev(int const val);
int get_show_prev();
void set_show_next(int const val);
int get_show_next();
std::size_t progress();
OB::Text::View word();
void current_word();
bool prev_word();
bool next_word();
void prev_sentence();
void next_sentence();
void prev_chapter();
void next_chapter();
bool search_next();
bool search_prev();
bool search(std::string const& rx, bool forward);
void reset_timer();
void reset_wpm_avg();
OB::Timer timer;
private:
struct Ctx
{
// current terminal size
std::size_t width {0};
std::size_t height {0};
// minimum terminal size
std::size_t width_min {20};
// current word focus point
double const focus {0.25};
std::size_t focus_point {0};
// current word display width in columns before focus point
std::size_t prefix_width {0};
// text buffer
OB::Text::String text;
// sha256 hash of the text buffer
std::string content_id;
// current rendered line
Line line;
// text position of leading space to current word
std::size_t pos {0};
// word index
std::size_t index {1};
// min word index
std::size_t index_min {1};
// max word index
std::size_t index_max {1};
// current word
OB::Text::View word;
OB::Text::View prev;
OB::Text::View next;
// words per minute
int const wpm_diff {10};
int const wpm_min {60};
int const wpm_max {1200};
int wpm {250};
int wpm_avg {0};
int wpm_count {0};
int wpm_total {0};
// wait time in milliseconds
int ms {0};
// toggle prev and next buffer surrounding current word in line
bool show_line {false};
int show_prev {1};
int show_next {1};
int show_min {0};
int show_max {60};
struct Search
{
OB::Text::Regex it;
std::string rx;
bool forward {true};
} search;
// sentence end characters
OB::Text::String sentence_end {".!?"};
} _ctx;
bool search_forward();
bool search_backward();
};
#endif // FLTRDR_HH