C.f. http://man7.org/linux/man-pages/man4/console_codes.4.html
Signed-off-by: Bryce Harrington <br...@osg.samsung.com>
---
clients/terminal.c | 72 +++++++++++++++++++++++++++---------------------------
1 file changed, 36 insertions(+), 36 deletions(-)
diff --git a/clients/terminal.c b/clients/terminal.c
index a70fef3..01dc2d2 100644
--- a/clients/terminal.c
+++ b/clients/terminal.c
@@ -1333,12 +1333,12 @@ handle_escape(struct terminal *terminal)
}
switch (*p) {
- case '@': /* ICH */
+ case '@': /* ICH - Insert <count> blank characters */
count = set[0] ? args[0] : 1;
if (count == 0) count = 1;
terminal_shift_line(terminal, count);
break;
- case 'A': /* CUU */
+ case 'A': /* CUU - Move cursor up <count> rows */
count = set[0] ? args[0] : 1;
if (count == 0) count = 1;
if (terminal->row - count >= terminal->margin_top)
@@ -1346,7 +1346,7 @@ handle_escape(struct terminal *terminal)
else
terminal->row = terminal->margin_top;
break;
- case 'B': /* CUD */
+ case 'B': /* CUD - Move cursor down <count> rows */
count = set[0] ? args[0] : 1;
if (count == 0) count = 1;
if (terminal->row + count <= terminal->margin_bottom)
@@ -1354,7 +1354,7 @@ handle_escape(struct terminal *terminal)
else
terminal->row = terminal->margin_bottom;
break;
- case 'C': /* CUF */
+ case 'C': /* CUF - Move cursor right by <count> columns */
count = set[0] ? args[0] : 1;
if (count == 0) count = 1;
if ((terminal->column + count) < terminal->width)
@@ -1362,7 +1362,7 @@ handle_escape(struct terminal *terminal)
else
terminal->column = terminal->width - 1;
break;
- case 'D': /* CUB */
+ case 'D': /* CUB - Move cursor left <count> columns */
count = set[0] ? args[0] : 1;
if (count == 0) count = 1;
if ((terminal->column - count) >= 0)
@@ -1370,7 +1370,7 @@ handle_escape(struct terminal *terminal)
else
terminal->column = 0;
break;
- case 'E': /* CNL */
+ case 'E': /* CNL - Move cursor down <count> rows, to column 1 */
count = set[0] ? args[0] : 1;
if (terminal->row + count <= terminal->margin_bottom)
terminal->row += count;
@@ -1378,7 +1378,7 @@ handle_escape(struct terminal *terminal)
terminal->row = terminal->margin_bottom;
terminal->column = 0;
break;
- case 'F': /* CPL */
+ case 'F': /* CPL - Move cursour up <count> rows, to column 1 */
count = set[0] ? args[0] : 1;
if (terminal->row - count >= terminal->margin_top)
terminal->row -= count;
@@ -1386,14 +1386,14 @@ handle_escape(struct terminal *terminal)
terminal->row = terminal->margin_top;
terminal->column = 0;
break;
- case 'G': /* CHA */
+ case 'G': /* CHA - Move cursor to column <y> in current row */
y = set[0] ? args[0] : 1;
y = y <= 0 ? 1 : y > terminal->width ? terminal->width : y;
terminal->column = y - 1;
break;
- case 'f': /* HVP */
- case 'H': /* CUP */
+ case 'f': /* HVP - Move cursor to <x, y> */
+ case 'H': /* CUP - Move cursor to <x, y> (origin at 1,1) */
x = (set[1] ? args[1] : 1) - 1;
x = x < 0 ? 0 :
(x >= terminal->width ? terminal->width - 1 : x);
@@ -1420,7 +1420,7 @@ handle_escape(struct terminal *terminal)
}
terminal->column--;
break;
- case 'J': /* ED */
+ case 'J': /* ED - Erase display */
row = terminal_get_row(terminal, terminal->row);
attr_row = terminal_get_attr_row(terminal, terminal->row);
if (!set[0] || args[0] == 0 || args[0] > 2) {
@@ -1449,7 +1449,7 @@ handle_escape(struct terminal *terminal)
terminal->end - terminal->start);
}
break;
- case 'K': /* EL */
+ case 'K': /* EL - Erase line */
row = terminal_get_row(terminal, terminal->row);
attr_row = terminal_get_attr_row(terminal, terminal->row);
if (!set[0] || args[0] == 0 || args[0] > 2) {
@@ -1465,7 +1465,7 @@ handle_escape(struct terminal *terminal)
attr_init(attr_row, terminal->curr_attr,
terminal->width);
}
break;
- case 'L': /* IL */
+ case 'L': /* IL - Insert <count> blank lines */
count = set[0] ? args[0] : 1;
if (count == 0) count = 1;
if (terminal->row >= terminal->margin_top &&
@@ -1482,7 +1482,7 @@ handle_escape(struct terminal *terminal)
terminal->curr_attr, terminal->width);
}
break;
- case 'M': /* DL */
+ case 'M': /* DL - Delete <count> lines */
count = set[0] ? args[0] : 1;
if (count == 0) count = 1;
if (terminal->row >= terminal->margin_top &&
@@ -1497,7 +1497,7 @@ handle_escape(struct terminal *terminal)
0, terminal->data_pitch);
}
break;
- case 'P': /* DCH */
+ case 'P': /* DCH - Delete <count> characters on current line */
count = set[0] ? args[0] : 1;
if (count == 0) count = 1;
terminal_shift_line(terminal, 0 - count);
@@ -1508,7 +1508,7 @@ handle_escape(struct terminal *terminal)
case 'T': /* SD */
terminal_scroll(terminal, 0 - (set[0] ? args[0] : 1));
break;
- case 'X': /* ECH */
+ case 'X': /* ECH - Erase <count> characters on current line */
count = set[0] ? args[0] : 1;
if (count == 0) count = 1;
if ((terminal->column + count) > terminal->width)
@@ -1527,7 +1527,7 @@ handle_escape(struct terminal *terminal)
}
terminal->column++;
break;
- case '`': /* HPA */
+ case '`': /* HPA - Move cursor to <y> column in current row */
y = set[0] ? args[0] : 1;
y = y <= 0 ? 1 : y > terminal->width ? terminal->width : y;
@@ -1541,33 +1541,33 @@ handle_escape(struct terminal *terminal)
handle_char(terminal, terminal->last_char);
terminal->last_char.byte[0] = 0;
break;
- case 'c': /* Primary DA */
+ case 'c': /* Primary DA - Answer "I am a VT102" */
terminal_write(terminal, "\e[?6c", 5);
break;
- case 'd': /* VPA */
+ case 'd': /* VPA - Move cursor to <x> row, current column */
x = set[0] ? args[0] : 1;
x = x <= 0 ? 1 : x > terminal->height ? terminal->height : x;
terminal->row = x - 1;
break;
- case 'g': /* TBC */
+ case 'g': /* TBC - Clear tab stop(s) */
if (!set[0] || args[0] == 0) {
terminal->tab_ruler[terminal->column] = 0;
} else if (args[0] == 3) {
memset(terminal->tab_ruler, 0, terminal->width);
}
break;
- case 'h': /* SM */
+ case 'h': /* SM - Set mode */
for (i = 0; i < 10 && set[i]; i++) {
handle_term_parameter(terminal, args[i], 1);
}
break;
- case 'l': /* RM */
+ case 'l': /* RM - Reset mode */
for (i = 0; i < 10 && set[i]; i++) {
handle_term_parameter(terminal, args[i], 0);
}
break;
- case 'm': /* SGR */
+ case 'm': /* SGR - Set attributes */
for (i = 0; i < 10; i++) {
if (i <= 7 && set[i] && set[i + 1] &&
set[i + 2] && args[i + 1] == 5)
@@ -1590,7 +1590,7 @@ handle_escape(struct terminal *terminal)
}
}
break;
- case 'n': /* DSR */
+ case 'n': /* DSR - Status report */
i = set[0] ? args[0] : 0;
if (i == 0 || i == 5) {
terminal_write(terminal, "\e[0n", 4);
@@ -1602,7 +1602,7 @@ handle_escape(struct terminal *terminal)
terminal_write(terminal, response, strlen(response));
}
break;
- case 'r':
+ case 'r': /* DECSTBM - Set scrolling region */
if (!set[0]) {
terminal->margin_top = 0;
terminal->margin_bottom = terminal->height-1;
@@ -1629,7 +1629,7 @@ handle_escape(struct terminal *terminal)
terminal->column = 0;
}
break;
- case 's':
+ case 's': /* Save cursor location */
terminal->saved_row = terminal->row;
terminal->saved_column = terminal->column;
break;
@@ -1676,7 +1676,7 @@ handle_escape(struct terminal *terminal)
fprintf(stderr, "Unimplemented windowOp %d\n",
args[0]);
break;
}
- case 'u':
+ case 'u': /* Restore cursor location */
terminal->row = terminal->saved_row;
terminal->column = terminal->saved_column;
break;
@@ -1690,30 +1690,30 @@ static void
handle_non_csi_escape(struct terminal *terminal, char code)
{
switch(code) {
- case 'M': /* RI */
+ case 'M': /* RI - Reverse linefeed */
terminal->row -= 1;
if (terminal->row < terminal->margin_top) {
terminal->row = terminal->margin_top;
terminal_scroll(terminal, -1);
}
break;
- case 'E': /* NEL */
+ case 'E': /* NEL - Newline */
terminal->column = 0;
// fallthrough
- case 'D': /* IND */
+ case 'D': /* IND - Linefeed */
terminal->row += 1;
if (terminal->row > terminal->margin_bottom) {
terminal->row = terminal->margin_bottom;
terminal_scroll(terminal, +1);
}
break;
- case 'c': /* RIS */
+ case 'c': /* RIS - Reset*/
terminal_init(terminal);
break;
- case 'H': /* HTS */
+ case 'H': /* HTS - Set tab stop at current column */
terminal->tab_ruler[terminal->column] = 1;
break;
- case '7': /* DECSC */
+ case '7': /* DECSC - Save current state */
terminal->saved_row = terminal->row;
terminal->saved_column = terminal->column;
terminal->saved_attr = terminal->curr_attr;
@@ -1722,7 +1722,7 @@ handle_non_csi_escape(struct terminal *terminal, char
code)
terminal->saved_g0 = terminal->g0;
terminal->saved_g1 = terminal->g1;
break;
- case '8': /* DECRC */
+ case '8': /* DECRC - Restore state most recently saved by ESC 7 */
terminal->row = terminal->saved_row;
terminal->column = terminal->saved_column;
terminal->curr_attr = terminal->saved_attr;
@@ -1731,10 +1731,10 @@ handle_non_csi_escape(struct terminal *terminal, char
code)
terminal->g0 = terminal->saved_g0;
terminal->g1 = terminal->saved_g1;
break;
- case '=': /* DECPAM */
+ case '=': /* DECPAM - Set application keypad mode */
terminal->key_mode = KM_APPLICATION;
break;
- case '>': /* DECPNM */
+ case '>': /* DECPNM - Set numeric keypad mode */
terminal->key_mode = KM_NORMAL;
break;
default:
--
1.9.1
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