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Re: console enhancements: mouse events etc
Hi,
here is my VT100 graphics mode patch, plus the one-liner I forgot to
mention in the change log last time, I hope that's OK.
Thomas
2009-12-17 Thomas Wolff <towo@towo.net>
* fhandler_console.cc (write_console): Check for VT100
graphics mode and transform wide characters in ASCII small
letter range to corresponding graphics.
(__vt100_conv): Table to transform small ASCII letters to line
drawing graphics for use in VT100 graphics mode.
(write_normal): Check for SO/SI control characters to
enable/disable VT100 graphics mode.
(base_chars): Enable SO/SI control characters for detection.
(write): Check for ESC ( 0 / ESC ( B escape sequences to
enable/disable VT100 graphics mode. Also detect ">" while
parsing ESC [ sequences to distinguish specific requests.
(char_command): Distinguish Secondary from Primary Device Attribute
request to report more details about cygwin console terminal version.
* fhandler.h (vt100_graphics_mode_active): New flag to indicate mode.
(saw_greater_than_sign): New parse flag for ESC [ > sequences.
(gotparen, gotrparen): New state values to parse ESC ( / ) sequences.
2009-12-16 Thomas Wolff <towo@towo.net>
* fhandler_console.cc (read): Allow combined Alt-AltGr modifiers
to also produce an ESC prefix like a plain Alt modifier, e.g. to make
Alt-@ work on a keyboard where @ is AltGr-q.
? src/config.log
? src/i686-pc-cygwin
? src/serdep.tmp
? src/etc/Makefile
? src/etc/config.cache
? src/etc/config.log
? src/etc/config.status
? src/etc/configure.info
? src/etc/standards.info
? src/winsup/cygwin/@mined.mar
? src/winsup/cygwin/cygwin-console-mouse-enhancements.patch
? src/winsup/cygwin/orig
? src/winsup/cygwin/patched
Index: src/winsup/cygwin/fhandler.h
===================================================================
RCS file: /cvs/src/src/winsup/cygwin/fhandler.h,v
retrieving revision 1.385
diff -u -p -r1.385 fhandler.h
--- src/winsup/cygwin/fhandler.h 16 Dec 2009 14:56:10 -0000 1.385
+++ src/winsup/cygwin/fhandler.h 17 Dec 2009 01:47:10 -0000
@@ -889,6 +889,8 @@ enum ansi_intensity
#define gotcommand 5
#define gettitle 6
#define eattitle 7
+#define gotparen 8
+#define gotrparen 9
#define MAXARGS 10
class dev_console
@@ -904,6 +906,8 @@ class dev_console
int nargs_;
unsigned rarg;
bool saw_question_mark;
+ bool saw_greater_than_sign;
+ bool vt100_graphics_mode_active;
bool alternate_charset_active;
bool metabit;
Index: src/winsup/cygwin/fhandler_console.cc
===================================================================
RCS file: /cvs/src/src/winsup/cygwin/fhandler_console.cc,v
retrieving revision 1.209
diff -u -p -r1.209 fhandler_console.cc
--- src/winsup/cygwin/fhandler_console.cc 16 Dec 2009 14:56:10 -0000 1.209
+++ src/winsup/cygwin/fhandler_console.cc 17 Dec 2009 01:47:21 -0000
@@ -405,9 +405,12 @@ fhandler_console::read (void *pv, size_t
/* Determine if the keystroke is modified by META. The tricky
part is to distinguish whether the right Alt key should be
recognized as Alt, or as AltGr. */
- bool meta;
- meta = (control_key_state & ALT_PRESSED) != 0
+ bool meta =
+ /* Alt but not AltGr (= left ctrl + right alt)? */
+ (control_key_state & ALT_PRESSED) != 0
&& ((control_key_state & CTRL_PRESSED) == 0
+ /* but also allow Alt-AltGr: */
+ || (control_key_state & ALT_PRESSED) == ALT_PRESSED
|| (wch <= 0x1f || wch == 0x7f));
if (!meta)
{
@@ -1113,9 +1116,53 @@ fhandler_console::cursor_get (int *x, in
*x = dev_state->info.dwCursorPosition.X;
}
+static wchar_t __vt100_conv [31] = {
+/* VT100 line drawing graphics mode maps
+ `abcdefghijklmnopqrstuvwxyz{|}~
+ to
+ â??â??â??â??â??â??°±â?¤â??â??â??â??â??â?¼â?ºâ?»â??â?¼â?½â??â?¤â?´â?¬â??â?¤â?¥Ï?â??£·
+*/
+ 0x25C6 /* â?? */,
+ 0x2592 /* â?? */,
+ 0x2409 /* â?? */,
+ 0x240C /* â?? */,
+ 0x240D /* â?? */,
+ 0x240A /* â?? */,
+ 0x00B0 /* ° */,
+ 0x00B1 /* ± */,
+ 0x2424 /* â?¤ */,
+ 0x240B /* â?? */,
+ 0x2518 /* â?? */,
+ 0x2510 /* â?? */,
+ 0x250C /* â?? */,
+ 0x2514 /* â?? */,
+ 0x253C /* â?¼ */,
+ 0x23BA /* â?º */,
+ 0x23BB /* â?» */,
+ 0x2500 /* â?? */,
+ 0x23BC /* â?¼ */,
+ 0x23BD /* â?½ */,
+ 0x251C /* â?? */,
+ 0x2524 /* â?¤ */,
+ 0x2534 /* â?´ */,
+ 0x252C /* â?¬ */,
+ 0x2502 /* â?? */,
+ 0x2264 /* â?¤ */,
+ 0x2265 /* â?¥ */,
+ 0x03C0 /* Ï? */,
+ 0x2260 /* â?? */,
+ 0x00A3 /* £ */,
+ 0x00B7 /* · */,
+};
+
inline
bool fhandler_console::write_console (PWCHAR buf, DWORD len, DWORD& done)
{
+ if (dev_state->vt100_graphics_mode_active)
+ for (DWORD i = 0; i < len; i ++)
+ if (buf[i] >= (unsigned char) '`' && buf[i] <= (unsigned char) '~')
+ buf[i] = __vt100_conv[buf[i] - (unsigned char) '`'];
+
while (len > 0)
{
DWORD nbytes = len > MAX_WRITE_CHARS ? MAX_WRITE_CHARS : len;
@@ -1144,11 +1191,13 @@ bool fhandler_console::write_console (PW
#define TAB 8 /* We should't let the console deal with these */
#define CR 13
#define LF 10
+#define SO 14
+#define SI 15
static const char base_chars[256] =
{
/*00 01 02 03 04 05 06 07 */ IGN, ERR, ERR, NOR, NOR, NOR, NOR, BEL,
-/*08 09 0A 0B 0C 0D 0E 0F */ BAK, TAB, DWN, ERR, ERR, CR, ERR, IGN,
+/*08 09 0A 0B 0C 0D 0E 0F */ BAK, TAB, DWN, ERR, ERR, CR, SO, SI,
/*10 11 12 13 14 15 16 17 */ NOR, NOR, ERR, ERR, ERR, ERR, ERR, ERR,
/*18 19 1A 1B 1C 1D 1E 1F */ NOR, NOR, ERR, ESC, ERR, ERR, ERR, ERR,
/* ! " # $ % & ' */ NOR, NOR, NOR, NOR, NOR, NOR, NOR, NOR,
@@ -1497,7 +1546,16 @@ fhandler_console::char_command (char c)
WriteFile (get_output_handle (), &dev_state->args_[0], 1, (DWORD *) &x, 0);
break;
case 'c': /* u9 - Terminal enquire string */
- strcpy (buf, "\033[?6c");
+ if (dev_state->saw_greater_than_sign)
+ /* Generate Secondary Device Attribute report, using 67 = ASCII 'C'
+ to indicate Cygwin (convention used by Rxvt, Urxvt, Screen, Mintty),
+ and cygwin version for terminal version. */
+ __small_sprintf (buf, "\033[>67;%d%02d;0c", CYGWIN_VERSION_DLL_MAJOR, CYGWIN_VERSION_DLL_MINOR);
+ else
+ strcpy (buf, "\033[?6c");
+ /* The generated report needs to be injected for read-ahead into the
+ fhandler_console object associated with standard input.
+ The current call does not work. */
puts_readahead (buf);
break;
case 'n':
@@ -1673,6 +1731,12 @@ fhandler_console::write_normal (const un
int x, y;
switch (base_chars[*found])
{
+ case SO:
+ dev_state->vt100_graphics_mode_active = true;
+ break;
+ case SI:
+ dev_state->vt100_graphics_mode_active = false;
+ break;
case BEL:
beep ();
break;
@@ -1763,45 +1827,54 @@ fhandler_console::write (const void *vsr
return -1;
break;
case gotesc:
- if (*src == '[')
+ if (*src == '[') /* CSI Control Sequence Introducer */
{
dev_state->state_ = gotsquare;
dev_state->saw_question_mark = false;
+ dev_state->saw_greater_than_sign = false;
for (dev_state->nargs_ = 0; dev_state->nargs_ < MAXARGS; dev_state->nargs_++)
dev_state->args_[dev_state->nargs_] = 0;
dev_state->nargs_ = 0;
}
- else if (*src == ']')
+ else if (*src == ']') /* OSC Operating System Command */
{
dev_state->rarg = 0;
dev_state->my_title_buf[0] = '\0';
dev_state->state_ = gotrsquare;
}
- else if (*src == 'M') /* Reverse Index */
+ else if (*src == '(') /* Designate G0 character set */
+ {
+ dev_state->state_ = gotparen;
+ }
+ else if (*src == ')') /* Designate G1 character set */
+ {
+ dev_state->state_ = gotrparen;
+ }
+ else if (*src == 'M') /* Reverse Index (scroll down) */
{
dev_state->fillin_info (get_output_handle ());
scroll_screen (0, 0, -1, -1, 0, dev_state->info.winTop + 1);
dev_state->state_ = normal;
}
- else if (*src == 'c') /* Reset Linux terminal */
+ else if (*src == 'c') /* RIS Full Reset */
{
dev_state->set_default_attr ();
clear_screen (0, 0, -1, -1);
cursor_set (true, 0, 0);
dev_state->state_ = normal;
}
- else if (*src == '8') /* Restore cursor position */
+ else if (*src == '8') /* DECRC Restore cursor position */
{
cursor_set (true, dev_state->savex, dev_state->savey);
dev_state->state_ = normal;
}
- else if (*src == '7') /* Save cursor position */
+ else if (*src == '7') /* DECSC Save cursor position */
{
cursor_get (&dev_state->savex, &dev_state->savey);
dev_state->savey -= dev_state->info.winTop;
dev_state->state_ = normal;
}
- else if (*src == 'R')
+ else if (*src == 'R') /* ? */
dev_state->state_ = normal;
else
{
@@ -1875,12 +1948,31 @@ fhandler_console::write (const void *vsr
{
if (*src == '?')
dev_state->saw_question_mark = true;
+ else if (*src == '>')
+ dev_state->saw_greater_than_sign = true;
/* ignore any extra chars between [ and first arg or command */
src++;
}
else
dev_state->state_ = gotarg1;
break;
+ case gotparen:
+ if (*src == '0')
+ dev_state->vt100_graphics_mode_active = true;
+ else
+ dev_state->vt100_graphics_mode_active = false;
+ dev_state->state_ = normal;
+ src++;
+ break;
+ case gotrparen:
+ /* This is not strictly needed, ^N/^O can just always be enabled */
+ if (*src == '0')
+ /*dev_state->vt100_graphics_mode_SOSI_enabled = true*/;
+ else
+ /*dev_state->vt100_graphics_mode_SOSI_enabled = false*/;
+ dev_state->state_ = normal;
+ src++;
+ break;
}
}