mirror of
https://github.com/genodelabs/genode.git
synced 2024-12-30 18:47:01 +00:00
2041f957da
Add additional parsing modes to the sequence decoder to detect and discard unhandled sequences for ECMA-48, DEC private, and Xterm. Add new behavior for cursor movement, cursor hiding, character deletion, and line-wrapping. Fix #2923
141 lines
3.2 KiB
C++
141 lines
3.2 KiB
C++
/*
|
|
* \brief Character printing utilities
|
|
* \author Emery Hemingway
|
|
* \date 2018-07-27
|
|
*/
|
|
|
|
/*
|
|
* Copyright (C) 2018 Genode Labs GmbH
|
|
*
|
|
* This file is part of the Genode OS framework, which is distributed
|
|
* under the terms of the GNU Affero General Public License version 3.
|
|
*/
|
|
|
|
#ifndef _TERMINAL__PRINT_H_
|
|
#define _TERMINAL__PRINT_H_
|
|
|
|
#include <log_session/connection.h>
|
|
#include <base/output.h>
|
|
|
|
namespace Terminal {
|
|
|
|
class Log_buffer : public Genode::Output
|
|
{
|
|
private:
|
|
|
|
enum { BUF_SIZE = Genode::Log_session::MAX_STRING_LEN };
|
|
|
|
char _buf[BUF_SIZE];
|
|
unsigned _num_chars = 0;
|
|
|
|
public:
|
|
|
|
Log_buffer() { }
|
|
|
|
void flush_ok()
|
|
{
|
|
log(Genode::Cstring(_buf, _num_chars));
|
|
_num_chars = 0;
|
|
}
|
|
|
|
void flush_warning()
|
|
{
|
|
warning(Genode::Cstring(_buf, _num_chars));
|
|
_num_chars = 0;
|
|
}
|
|
|
|
void flush_error()
|
|
{
|
|
error(Genode::Cstring(_buf, _num_chars));
|
|
_num_chars = 0;
|
|
}
|
|
|
|
void out_char(char c) override
|
|
{
|
|
_buf[_num_chars++] = c;
|
|
if (_num_chars >= sizeof(_buf))
|
|
flush_ok();
|
|
}
|
|
|
|
template <typename... ARGS>
|
|
void print(ARGS &&... args) {
|
|
Output::out_args(*this, args...); }
|
|
};
|
|
|
|
struct Ascii
|
|
{
|
|
unsigned char const _c;
|
|
|
|
template <typename T>
|
|
explicit Ascii(T c) : _c(c) { }
|
|
|
|
void print(Genode::Output &out) const
|
|
{
|
|
switch (_c) {
|
|
case 000: out.out_string("NUL"); break;
|
|
case 001: out.out_string("SOH"); break;
|
|
case 002: out.out_string("STX"); break;
|
|
case 003: out.out_string("ETX"); break;
|
|
case 004: out.out_string("EOT"); break;
|
|
case 005: out.out_string("ENQ"); break;
|
|
case 006: out.out_string("ACK"); break;
|
|
case 007: out.out_string("BEL"); break;
|
|
case 010: out.out_string("BS"); break;
|
|
case 011: out.out_string("HT"); break;
|
|
case 012: out.out_string("LF"); break;
|
|
case 013: out.out_string("VT"); break;
|
|
case 014: out.out_string("FF"); break;
|
|
case 015: out.out_string("CR"); break;
|
|
case 016: out.out_string("SO"); break;
|
|
case 017: out.out_string("SI"); break;
|
|
case 020: out.out_string("DLE"); break;
|
|
case 021: out.out_string("DC1"); break;
|
|
case 022: out.out_string("DC2"); break;
|
|
case 023: out.out_string("DC3"); break;
|
|
case 024: out.out_string("DC4"); break;
|
|
case 025: out.out_string("NAK"); break;
|
|
case 026: out.out_string("SYN"); break;
|
|
case 027: out.out_string("ETB"); break;
|
|
case 030: out.out_string("CAN"); break;
|
|
case 031: out.out_string("EM"); break;
|
|
case 032: out.out_string("SUB"); break;
|
|
case 033: out.out_string("ESC"); break;
|
|
case 034: out.out_string("FS"); break;
|
|
case 035: out.out_string("GS"); break;
|
|
case 036: out.out_string("RS"); break;
|
|
case 037: out.out_string("US"); break;
|
|
case 040: out.out_string("SPACE"); break;
|
|
case 0177: out.out_string("DEL"); break;
|
|
default:
|
|
if (_c & 0x80)
|
|
Genode::Hex(_c).print(out);
|
|
else
|
|
out.out_char(_c);
|
|
break;
|
|
}
|
|
}
|
|
};
|
|
|
|
struct Ecma
|
|
{
|
|
unsigned char const _c;
|
|
|
|
template <typename T>
|
|
explicit Ecma(T c) : _c(c) { }
|
|
|
|
void print(Genode::Output &out) const
|
|
{
|
|
Ascii(_c).print(out);
|
|
out.out_char('(');
|
|
|
|
Genode::print(out, (_c)/160, (_c>>4)%10,
|
|
"/", (_c&0xf)/10, (_c&0xf)%10);
|
|
|
|
out.out_char(')');
|
|
}
|
|
};
|
|
|
|
}
|
|
|
|
#endif
|