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