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Code Issues Projects Releases Packages Wiki Activity Actions 9

Terminal: Add support for some more escape sequences.

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This commit is contained in:
Andreas Kling 2019-01-23 08:55:59 +01:00
parent c7ded89f05
commit 9ae20a153e
Notes: sideshowbarker 2024-07-19 15:58:06 +09:00
2 changed files with 75 additions and 1 deletions
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73
Terminal/Terminal.cpp
View file

@ -7,6 +7,7 @@
#include <stdio.h>
#include <gui.h>
//#define TERMINAL_DEBUG
#define FAST_SCROLL
void Terminal::create_window()
@ -211,23 +212,77 @@ void Terminal::escape$A(const Vector<unsigned>& params)
int num = 1;
if (params.size() >= 1)
num = params[0];
if (num == 0)
num = 1;
int new_row = (int)m_cursor_row - num;
if (new_row < 0)
new_row = 0;
set_cursor(new_row, m_cursor_column);
}
void Terminal::escape$B(const Vector<unsigned>& params)
{
int num = 1;
if (params.size() >= 1)
num = params[0];
if (num == 0)
num = 1;
int new_row = (int)m_cursor_row + num;
if (new_row >= m_rows)
new_row = m_rows - 1;
set_cursor(new_row, m_cursor_column);
}
void Terminal::escape$C(const Vector<unsigned>& params)
{
int num = 1;
if (params.size() >= 1)
num = params[0];
if (num == 0)
num = 1;
int new_column = (int)m_cursor_column + num;
if (new_column >= m_columns)
new_column = m_columns - 1;
set_cursor(m_cursor_row, new_column);
}
void Terminal::escape$D(const Vector<unsigned>& params)
{
int num = 1;
if (params.size() >= 1)
num = params[0];
if (num == 0)
num = 1;
int new_column = (int)m_cursor_column - num;
if (new_column < 0)
new_column = 0;
set_cursor(m_cursor_row, new_column);
}
void Terminal::escape$K(const Vector<unsigned>& params)
{
int mode = 0;
if (params.size() >= 1)
mode = params[0];
switch (mode) {
case 0:
for (int i = m_cursor_column; i < m_columns; ++i) {
put_character_at(m_cursor_row, i, ' ');
}
break;
case 1:
// FIXME: Clear from cursor to beginning of screen.
notImplemented();
break;
case 2:
notImplemented();
break;
default:
notImplemented();
break;
}
}
void Terminal::escape$J(const Vector<unsigned>& params)
{
int mode = 0;
@ -249,6 +304,9 @@ void Terminal::escape$J(const Vector<unsigned>& params)
// FIXME: <esc>[3J should also clear the scrollback buffer.
clear();
break;
default:
notImplemented();
break;
}
}
@ -267,13 +325,18 @@ void Terminal::execute_escape_sequence(byte final)
}
switch (final) {
case 'A': escape$A(params); break;
case 'B': escape$B(params); break;
case 'C': escape$C(params); break;
case 'D': escape$D(params); break;
case 'H': escape$H(params); break;
case 'J': escape$J(params); break;
case 'K': escape$K(params); break;
case 'm': escape$m(params); break;
case 's': escape$s(params); break;
case 'u': escape$u(params); break;
default: break;
default:
dbgprintf("Terminal::execute_escape_sequence: Unhandled final '%c'\n", final);
break;
}
m_parameters.clear();
@ -306,6 +369,8 @@ void Terminal::scroll_up()
void Terminal::set_cursor(unsigned row, unsigned column)
{
if (row == m_cursor_row && column == m_cursor_column)
return;
ASSERT(row < rows());
ASSERT(column < columns());
invalidate_cursor();
@ -325,6 +390,9 @@ void Terminal::put_character_at(unsigned row, unsigned column, byte ch)
void Terminal::on_char(byte ch)
{
#ifdef TERMINAL_DEBUG
dbgprintf("Terminal::on_char: %b (%c)\n", ch, ch);
#endif
switch (m_escape_state) {
case ExpectBracket:
if (ch == '[')
@ -383,6 +451,9 @@ void Terminal::on_char(byte ch)
}
return;
}
case '\r':
set_cursor(m_cursor_row, 0);
return;
case '\n':
scroll_up();
return;

3
Terminal/Terminal.h
View file

@ -28,9 +28,12 @@ private:
void invalidate_window(const Rect& = Rect());
void escape$A(const Vector<unsigned>&);
void escape$B(const Vector<unsigned>&);
void escape$C(const Vector<unsigned>&);
void escape$D(const Vector<unsigned>&);
void escape$H(const Vector<unsigned>&);
void escape$J(const Vector<unsigned>&);
void escape$K(const Vector<unsigned>&);
void escape$m(const Vector<unsigned>&);
void escape$s(const Vector<unsigned>&);
void escape$u(const Vector<unsigned>&);