62 lines
1.2 KiB
C++
62 lines
1.2 KiB
C++
#pragma once
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#include <istream>
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#include <streambuf>
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namespace fsh::util
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{
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/**
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* Applies some settings to terminals to fix some inconsistencies between
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* windows and linux terminals
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*
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* * **Windows** : it enables using ansii characters
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* * **Linux** : it enables [Noncanonical Mode](https://www.gnu.org/software/libc/manual/html_node/Noncanonical-Input.html)
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*/
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void prepTerminal();
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#if defined(__unix__) || defined(__APPLE__)
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class CursorIStreamBuffer : public std::streambuf {
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public:
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enum EscapeSequence {
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FAILED,
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POSSIBLE,
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LEFT_ARROW,
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RIGHT_ARROW
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};
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CursorIStreamBuffer() : valid(0), read_chars(0), cursor_pos(0), buffer() {
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setg(buffer,buffer,buffer);
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}
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protected:
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int underflow() override;
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// int uflow() override;
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// std::streamsize xsgetn(char* s, std::streamsize n) override;
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private:
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int valid;
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EscapeSequence testForEscapeCodes(char chr);
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int readInputToNewLine();
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std::string input;
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int read_chars;
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int cursor_pos;
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char buffer[32];
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};
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class CursorIStream : public std::istream {
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public:
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CursorIStream() : std::istream(&buffer) {}
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private:
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CursorIStreamBuffer buffer;
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};
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extern CursorIStream cin;
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#endif
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} |