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terminal fixes
- handle line wraps in 'ech()' - take (1,1) origin into account in 'hpa()' and 'vpa()' - unify handling of SGR escape sequences of different lengths - accept the '[?2004h' and '[?2004l' escape sequences (used by midnight commander) Fixes #2671
This commit is contained in:
Christian Prochaska
Norman Feske
parent
fefeb29d5f
commit
12c8e51071
@ -276,12 +276,31 @@ class Char_cell_array_character_screen : public Terminal::Character_screen
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void ech(int v)
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{
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Cursor_guard guard(*this);
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/* clear number of characters */
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for (int i = 0; i < v; i++, _cursor_pos.x++)
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_char_cell_array.set_cell(_cursor_pos.x, _cursor_pos.y,
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int x = _cursor_pos.x;
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int y = _cursor_pos.y;
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while (v-- > 0) {
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_char_cell_array.set_cell(x, y,
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Char_cell(' ', Font_face::REGULAR,
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_color_index, _inverse, _highlight));
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if (x == (_boundary.width - 1)) {
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/* end of line reached */
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if (y < (_boundary.height - 1)) {
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/* continue at beginning of next line */
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x = 0;
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y++;
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} else {
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/* end of screen reached */
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return;
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}
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} else {
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x++;
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}
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}
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}
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void ed()
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@ -311,8 +330,11 @@ class Char_cell_array_character_screen : public Terminal::Character_screen
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{
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Cursor_guard guard(*this);
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_cursor_pos.x = x;
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_cursor_pos.x = Genode::min(_boundary.width - 1, _cursor_pos.x);
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/* top-left cursor position is reported as (1, 1) */
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x--;
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using namespace Genode;
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_cursor_pos.x = max(0, min(x, _boundary.width - 1));
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}
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void hts() { Genode::warning(__func__, " not implemented"); }
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@ -348,7 +370,6 @@ class Char_cell_array_character_screen : public Terminal::Character_screen
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void setab(int value)
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{
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//_inverse = (value != 0);
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_color_index &= ~0x38; /* clear 111000 */
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_color_index |= (((value == 9) ? DEFAULT_COLOR_INDEX_BG : value) << 3);
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}
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@ -361,12 +382,22 @@ class Char_cell_array_character_screen : public Terminal::Character_screen
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void sgr(int value)
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{
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_highlight = (value & 0x1) != 0;
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_inverse = (value & 0x2) != 0;
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/* sgr 0 is the command to reset all attributes, including color */
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if (value == 0)
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switch (value) {
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case 0:
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/* sgr 0 is the command to reset all attributes, including color */
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_highlight = false;
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_inverse = false;
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_color_index = DEFAULT_COLOR_INDEX | (DEFAULT_COLOR_INDEX_BG << 3);
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break;
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case 1:
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_highlight = true;
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break;
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case 7:
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_inverse = true;
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break;
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default:
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break;
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}
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}
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void sgr0()
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@ -387,8 +418,11 @@ class Char_cell_array_character_screen : public Terminal::Character_screen
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{
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Cursor_guard guard(*this);
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_cursor_pos.y = y;
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_cursor_pos.y = Genode::min(_boundary.height - 1, _cursor_pos.y);
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/* top-left cursor position is reported as (1, 1) */
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y--;
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using namespace Genode;
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_cursor_pos.y = max(0, min(y, _boundary.height - 1));
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}
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};
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@ -175,6 +175,22 @@ class Terminal::Decoder
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_number = 0;
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}
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bool _sgr(int const p)
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{
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if (p < 30)
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return (_screen.sgr(p), true);
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/* p starting with digit '3' -> set foreground color */
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if (starts_with_digit(3, p))
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return (_screen.setaf(remove_first_digit(p)), true);
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/* p starting with digit '4' -> set background color */
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if (starts_with_digit(4, p))
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return (_screen.setab(remove_first_digit(p)), true);
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return false;
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}
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/**
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* Try to handle single-element escape sequence
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*
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@ -244,18 +260,7 @@ class Terminal::Decoder
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char const command = _escape_stack[2].value;
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switch (command) {
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case 'm':
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if (p1 < 30)
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return (_screen.sgr(p1), true);
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/* p1 starting with digit '3' -> set foreground color */
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if (starts_with_digit(3, p1))
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return (_screen.setaf(remove_first_digit(p1)), true);
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/* p1 starting with digit '4' -> set background color */
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if (starts_with_digit(4, p1))
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return (_screen.setab(remove_first_digit(p1)), true);
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case 'm': return _sgr(p1);
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case 'D': return (_screen.cub(p1), true);
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case 'd': return (_screen.vpa(p1), true);
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case 'g': return (p1 == 3) && (_screen.tbc(), true);
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@ -292,12 +297,22 @@ class Terminal::Decoder
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switch (command) {
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case 'l':
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if (p1 == 7) return (_screen.rmam(), true);
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if (p1 == 25) return (_screen.civis(), true);
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if (p1 == 7) return (_screen.rmam(), true);
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if (p1 == 25) return (_screen.civis(), true);
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if (p1 == 2004) {
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/* disable bracketed paste */
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Genode::warning("Sequence '[?2004l' is not implemented");
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return true;
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}
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return false;
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case 'h':
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if (p1 == 7) return (_screen.smam(), true);
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if (p1 == 25) return (_screen.cnorm(), true);
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if (p1 == 7) return (_screen.smam(), true);
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if (p1 == 25) return (_screen.cnorm(), true);
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if (p1 == 2004) {
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/* enable bracketed paste */
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Genode::warning("Sequence '[?2004h' is not implemented");
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return true;
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}
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return false;
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case 'c':
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if (p1 == 0) return true; /* appended to cnorm */
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@ -328,39 +343,17 @@ class Terminal::Decoder
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switch (command) {
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case 'r': return (_screen.csr(p[0], p[1]), true);
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case 'H': return (_screen.cup(p[0], p[1]), true);
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case 'm': {
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bool result = false;
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case 'm':
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for (int i = 0; i < 2; i++) {
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for (int i = 0; i < 2; i++)
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if (!_sgr(p[i]))
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Genode::warning("Number ", p[i],
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" in sequence '[",
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p[0], ";",
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p[1], "m' is not implemented");
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if (p[i] == 0) {
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/* turn off all attributes */
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_screen.sgr0();
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result = true;
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return true;
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} else if (p[i] == 1) {
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/*
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* attribute
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* 1 bold (turn into highlight)
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*/
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_screen.sgr(p[i]);
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result = true;
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} else if ((p[i] >= 30) && (p[i] <= 37)) {
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/*
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* color
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* 30...37 text colors
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* 40...47 background colors
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*/
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_screen.setaf(p[i] - 30);
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return true;
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} else if ((p[i] == 39) && (p[!i] == 49))
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return (_screen.op(), true);
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}
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return result;
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}
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case 'R': return (_screen.u6(p[0], p[1]), true);
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default: return false;
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}
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@ -381,20 +374,24 @@ class Terminal::Decoder
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|| (_escape_stack[5].type != Escape_stack::Entry::NUMBER))
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return false;
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int const p1 = _escape_stack[1].value;
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int const p2 = _escape_stack[2].value;
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int const p3 = _escape_stack[3].value;
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int const p[3] = { _escape_stack[1].value,
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_escape_stack[3].value,
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_escape_stack[5].value };
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int const command = _escape_stack[6].value;
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switch (command) {
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case 'm':
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/*
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* Currently returning true w/o actually handling the
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* sequence
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*/
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Genode::warning("Sequence '[", p1, ";", p2, ";", p3, "m' is not implemented");
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for (int i = 0; i < 3; i++)
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if (!_sgr(p[i]))
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Genode::warning("Number ", p[i],
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" in sequence '[",
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p[0], ";",
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p[1], ";",
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p[2], "m' is not implemented");
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return true;
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default: return false;
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}
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