FTXUI/include/ftxui/screen/string.hpp
Arthur Sonzogni 52276c8a2b
Bugfix Input use std::string (#279)
Use std::string by default for the implementation of FTXUI's input
component.

Along the way:
- Give a correct implementation for fullwidth characters.
- Add tests
- Modify the way the cursor is drawn.
2021-12-12 21:31:54 +01:00

41 lines
1.3 KiB
C++

#ifndef FTXUI_SCREEN_STRING_HPP
#define FTXUI_SCREEN_STRING_HPP
#include <string> // for string, wstring, to_string
#include <vector> // for vector
namespace ftxui {
std::string to_string(const std::wstring& s);
std::wstring to_wstring(const std::string& s);
template <typename T>
std::wstring to_wstring(T s) {
return to_wstring(std::to_string(s));
}
int string_width(const std::string&);
// Split the string into a its glyphs. An empty one is inserted ater fullwidth
// ones.
std::vector<std::string> Utf8ToGlyphs(const std::string& input);
// If |input| was an array of glyphs, this returns the number of char to eat
// before reaching the glyph at index |glyph_index|.
int GlyphPosition(const std::string& input,
size_t glyph_index,
size_t start = 0);
// Returns the number of glyphs in |input|.
int GlyphCount(const std::string& input);
// Map every cells drawn by |input| to their corresponding Glyphs. Half-size
// Glyphs takes one cell, full-size Glyphs take two cells.
std::vector<int> CellToGlyphIndex(const std::string& input);
} // namespace ftxui
#include "ftxui/screen/deprecated.hpp"
#endif /* end of include guard: FTXUI_SCREEN_STRING_HPP */
// Copyright 2020 Arthur Sonzogni. All rights reserved.
// Use of this source code is governed by the MIT license that can be found in
// the LICENSE file.