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OSC sequence support for GNU Screen and tmux

This commit is contained in:
Markus Gans 2016-02-04 01:27:15 +01:00
parent ffff3aa5ca
commit 4dca45036e
5 changed files with 180 additions and 81 deletions
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4
ChangeLog
View File

@ -1,3 +1,7 @@
2016-02-04 Markus Gans <guru.mail@muenster.de>
* KDE Konsole detection improved
* OSC sequence support for GNU Screen and tmux
2016-01-31 Markus Gans <guru.mail@muenster.de>
* Better escape sequences readability through
symbolic names like ESC, CSI or OSC

6
doc/TODO
View File

@ -4,11 +4,7 @@ Bugs
Improvements
~~~~~~~~~~~~
- Every OSC sequence ("\033]") should have been a special prefix and
postfix sequence for screen and tmux:
screen = "\033P" + OSC + control sequence + "\a\033\\"
tmux = "\033Ptmux:\033" + OSC + control sequence + "\033\\"
-
Missing Features
~~~~~~~~~~~~~~~~

232
src/fterm.cpp
View File

@ -495,7 +495,7 @@ int FTerm::parseKeyString ( char* buffer
const long key_timeout = 100000; // 100 ms
int key, len, n;
if ( firstchar == 0x1b )
if ( firstchar == ESC[0] )
{
// x11 mouse tracking
if ( buf_len >= 6 && buffer[1] == '[' && buffer[2] == 'M' )
@ -766,8 +766,6 @@ char* FTerm::init_256colorTerminal()
if ( (s5 && strlen(s5) > 0) || (s6 && strlen(s6) > 0) )
kde_konsole = true;
else
kde_konsole = false;
if ( (s1 && strncmp(s1, "gnome-terminal", 14) == 0) || s2 )
{
@ -777,8 +775,6 @@ char* FTerm::init_256colorTerminal()
new_termtype = const_cast<char*>("gnome");
gnome_terminal = true;
}
else
gnome_terminal = false;
return new_termtype;
}
@ -803,7 +799,7 @@ char* FTerm::parseAnswerbackMsg (char*& current_termtype)
putty_terminal = false;
if ( cygwin_terminal )
putchar(0x8); // cygwin needs a backspace to delete the '♣' char
putchar (BS[0]); // cygwin needs a backspace to delete the '♣' char
return new_termtype;
}
@ -872,23 +868,13 @@ char* FTerm::parseSecDA (char*& current_termtype)
switch ( terminal_id_type )
{
case 0:
if ( terminal_id_version == 136 )
if ( terminal_id_version == 115 )
kde_konsole = true;
else if ( terminal_id_version == 136 )
putty_terminal = true; // PuTTY
break;
case 1:
// Read the terminal (firmware) version
try
{
if ( Sec_DA_components[1] )
terminal_id_version = Sec_DA_components[1].toInt();
else
terminal_id_version = -1;
}
catch (const std::exception&)
{
terminal_id_version = -1;
}
if ( ! sec_da_supported )
{
if ( terminal_id_version == 2 ) // also used by apple terminal
@ -950,6 +936,31 @@ char* FTerm::parseSecDA (char*& current_termtype)
return new_termtype;
}
//----------------------------------------------------------------------
void FTerm::oscPrefix()
{
if ( tmux_terminal )
{
// tmux device control string
putstring (ESC "Ptmux;" ESC);
}
else if ( screen_terminal )
{
// GNU Screen device control string
putstring (ESC "P");
}
}
//----------------------------------------------------------------------
void FTerm::oscPostfix()
{
if ( screen_terminal || tmux_terminal )
{
// GNU Screen/tmux string terminator
putstring (ESC "\\");
}
}
//----------------------------------------------------------------------
void FTerm::init_alt_charset()
{
@ -1081,7 +1092,7 @@ void FTerm::init_termcaps()
ansi_default_color = tgetflag(const_cast<char*>("AX"));
// terminal supports operating system commands (OSC)
// OSC = Esc + ]
// OSC = Esc + ']'
osc_support = tgetflag(const_cast<char*>("XT"));
if ( isTeraTerm() )
@ -1195,11 +1206,35 @@ void FTerm::init_termcaps()
// fallback if "Ic" is not found
if ( ! tcap[t_initialize_color].string )
tcap[t_initialize_color].string = \
const_cast<char*>(OSC "P%p1%x"
"%p2%{255}%*%{1000}%/%02x"
"%p3%{255}%*%{1000}%/%02x"
"%p4%{255}%*%{1000}%/%02x");
{
if ( screen_terminal )
{
if ( tmux_terminal )
{
tcap[t_initialize_color].string = \
const_cast<char*>(ESC "Ptmux;" ESC OSC "4;%p1%d;rgb:"
"%p2%{255}%*%{1000}%/%2.2X/"
"%p3%{255}%*%{1000}%/%2.2X/"
"%p4%{255}%*%{1000}%/%2.2X" BEL ESC "\\");
}
else
{
tcap[t_initialize_color].string = \
const_cast<char*>(ESC "P" OSC "4;%p1%d;rgb:"
"%p2%{255}%*%{1000}%/%2.2X/"
"%p3%{255}%*%{1000}%/%2.2X/"
"%p4%{255}%*%{1000}%/%2.2X" BEL ESC "\\");
}
}
else
{
tcap[t_initialize_color].string = \
const_cast<char*>(OSC "P%p1%x"
"%p2%{255}%*%{1000}%/%02x"
"%p3%{255}%*%{1000}%/%02x"
"%p4%{255}%*%{1000}%/%02x");
}
}
// fallback if "ti" is not found
if ( ! tcap[t_enter_ca_mode].string )
@ -1483,6 +1518,8 @@ void FTerm::init()
force_vt100 = \
tera_terminal = \
kterm_terminal = \
gnome_terminal = \
kde_konsole = \
rxvt_terminal = \
urxvt_terminal = \
mlterm_terminal = \
@ -1707,7 +1744,7 @@ void FTerm::init()
setXTermMouseForeground ("rgb:0000/0000/0000");
if ( ! gnome_terminal )
setXTermCursorColor("rgb:ffff/ffff/ffff");
if ( ! mintty_terminal && ! rxvt_terminal )
if ( ! mintty_terminal && ! rxvt_terminal && ! screen_terminal )
{
// mintty and rxvt can't reset these settings
setXTermBackground("rgb:8080/a4a4/ecec");
@ -2564,10 +2601,12 @@ bool FTerm::setVGAFont()
VGAFont = true;
if ( xterm || osc_support )
if ( xterm || screen_terminal || osc_support )
{
// Set font in xterm to vga
oscPrefix();
putstring (OSC "50;vga" BEL);
oscPostfix();
fflush(stdout);
NewFont = false;
pc_charset_console = true;
@ -2618,11 +2657,13 @@ bool FTerm::setNewFont()
if ( NewFont )
return true;
if ( xterm || urxvt_terminal || osc_support )
if ( xterm || screen_terminal || urxvt_terminal || osc_support )
{
NewFont = true;
// Set font in xterm to 8x16graph
oscPrefix();
putstring (OSC "50;8x16graph" BEL);
oscPostfix();
fflush(stdout);
pc_charset_console = true;
Encoding = fc::PC;
@ -2677,14 +2718,22 @@ bool FTerm::setOldFont()
NewFont = \
VGAFont = false;
if ( xterm || urxvt_terminal || osc_support )
if ( xterm || screen_terminal || urxvt_terminal || osc_support )
{
if ( xterm_font && xterm_font->getLength() > 2 )
{
// restore saved xterm font
oscPrefix();
putstringf (OSC "50;%s" BEL, xterm_font->c_str() );
oscPostfix();
}
else
{
// Set font in xterm to vga
oscPrefix();
putstring (OSC "50;vga" BEL);
oscPostfix();
}
fflush(stdout);
retval = true;
}
@ -2961,9 +3010,11 @@ void FTerm::updateTerminal()
void FTerm::setKDECursor (fc::kde_konsole_CursorShape style)
{
// Set cursor style in KDE konsole
if ( kde_konsole || osc_support )
if ( kde_konsole )
{
putstringf (OSC "50;CursorShape=%d\007", style);
oscPrefix();
putstringf (OSC "50;CursorShape=%d" BEL, style);
oscPostfix();
fflush(stdout);
}
}
@ -2972,23 +3023,27 @@ void FTerm::setKDECursor (fc::kde_konsole_CursorShape style)
FString FTerm::getXTermFont()
{
FString font("");
if ( raw_mode && non_blocking_stdin && osc_support )
if ( xterm || screen_terminal || osc_support )
{
int n;
char temp[150] = {};
putstring (OSC "50;?" BEL); // get font
fflush(stdout);
usleep(150000); // wait 150 ms
// read the terminal answer
n = int(read(fileno(stdin), &temp, sizeof(temp)-1));
// BEL + '\0' = string terminator
if ( n >= 6 && temp[n-1] == '\07' && temp[n] == '\0' )
if ( raw_mode && non_blocking_stdin )
{
temp[n-1] = '\0';
font = static_cast<char*>(temp + 5);
int n;
char temp[150] = {};
oscPrefix();
putstring (OSC "50;?" BEL); // get font
oscPostfix();
fflush(stdout);
usleep(150000); // wait 150 ms
// read the terminal answer
n = int(read(fileno(stdin), &temp, sizeof(temp)-1));
// BEL + '\0' = string terminator
if ( n >= 6 && temp[n-1] == BEL[0] && temp[n] == '\0' )
{
temp[n-1] = '\0';
font = static_cast<char*>(temp + 5);
}
}
}
return font;
@ -3014,7 +3069,7 @@ FString FTerm::getXTermTitle()
n = int(read(fileno(stdin), &temp, sizeof(temp)-1));
// Esc + \ = OSC string terminator
if ( n >= 5 && temp[n-1] == '\\' && temp[n-2] == 0x1b )
if ( n >= 5 && temp[n-1] == '\\' && temp[n-2] == ESC[0] )
{
temp[n-2] = '\0';
title = static_cast<char*>(temp + 3);
@ -3024,7 +3079,7 @@ FString FTerm::getXTermTitle()
}
//----------------------------------------------------------------------
void FTerm::setXTermCursorStyle(fc::xterm_cursor_style style)
void FTerm::setXTermCursorStyle (fc::xterm_cursor_style style)
{
// Set the xterm cursor style
if ( (xterm || mintty_terminal) && ! gnome_terminal && ! kde_konsole )
@ -3038,9 +3093,13 @@ void FTerm::setXTermCursorStyle(fc::xterm_cursor_style style)
void FTerm::setXTermTitle (const FString& title)
{
// Set the xterm title
if ( xterm || mintty_terminal || putty_terminal || osc_support )
if ( xterm || screen_terminal
|| mintty_terminal || putty_terminal
|| osc_support )
{
oscPrefix();
putstringf (OSC "0;%s" BEL, title.c_str());
oscPostfix();
fflush(stdout);
}
}
@ -3049,9 +3108,13 @@ void FTerm::setXTermTitle (const FString& title)
void FTerm::setXTermForeground (const FString& fg)
{
// Set the VT100 text foreground color
if ( xterm || mintty_terminal || mlterm_terminal || osc_support )
if ( xterm || screen_terminal
|| mintty_terminal || mlterm_terminal
|| osc_support )
{
oscPrefix();
putstringf (OSC "10;%s" BEL, fg.c_str());
oscPostfix();
fflush(stdout);
}
}
@ -3060,9 +3123,13 @@ void FTerm::setXTermForeground (const FString& fg)
void FTerm::setXTermBackground (const FString& bg)
{
// Set the VT100 text background color
if ( xterm || mintty_terminal || mlterm_terminal || osc_support )
if ( xterm || screen_terminal
|| mintty_terminal || mlterm_terminal
|| osc_support )
{
oscPrefix();
putstringf (OSC "11;%s" BEL, bg.c_str());
oscPostfix();
fflush(stdout);
}
}
@ -3071,9 +3138,13 @@ void FTerm::setXTermBackground (const FString& bg)
void FTerm::setXTermCursorColor (const FString& cc)
{
// Set the text cursor color
if ( xterm || mintty_terminal || urxvt_terminal || osc_support )
if ( xterm || screen_terminal
|| mintty_terminal || urxvt_terminal
|| osc_support )
{
oscPrefix();
putstringf (OSC "12;%s" BEL, cc.c_str());
oscPostfix();
fflush(stdout);
}
}
@ -3082,9 +3153,11 @@ void FTerm::setXTermCursorColor (const FString& cc)
void FTerm::setXTermMouseForeground (const FString& mfg)
{
// Set the mouse foreground color
if ( xterm || urxvt_terminal || osc_support )
if ( xterm || screen_terminal || urxvt_terminal || osc_support )
{
oscPrefix();
putstringf (OSC "13;%s" BEL, mfg.c_str());
oscPostfix();
fflush(stdout);
}
}
@ -3093,9 +3166,11 @@ void FTerm::setXTermMouseForeground (const FString& mfg)
void FTerm::setXTermMouseBackground (const FString& mbg)
{
// Set the mouse background color
if ( xterm || osc_support )
if ( xterm || screen_terminal || osc_support )
{
oscPrefix();
putstringf (OSC "14;%s" BEL, mbg.c_str());
oscPostfix();
fflush(stdout);
}
}
@ -3104,9 +3179,11 @@ void FTerm::setXTermMouseBackground (const FString& mbg)
void FTerm::setXTermHighlightBackground (const FString& hbg)
{
// Set the highlight background color
if ( xterm || urxvt_terminal || osc_support )
if ( xterm || screen_terminal || urxvt_terminal || osc_support )
{
oscPrefix();
putstringf (OSC "17;%s" BEL, hbg.c_str());
oscPostfix();
fflush(stdout);
}
}
@ -3115,9 +3192,11 @@ void FTerm::setXTermHighlightBackground (const FString& hbg)
void FTerm::resetXTermColors()
{
// Reset the entire color table
if ( xterm || osc_support )
if ( xterm || screen_terminal || osc_support )
{
oscPrefix();
putstringf (OSC "104" BEL);
oscPostfix();
fflush(stdout);
}
}
@ -3126,9 +3205,11 @@ void FTerm::resetXTermColors()
void FTerm::resetXTermForeground()
{
// Reset the VT100 text foreground color
if ( xterm || osc_support )
if ( xterm || screen_terminal || osc_support )
{
oscPrefix();
putstring (OSC "110" BEL);
oscPostfix();
fflush(stdout);
}
}
@ -3137,9 +3218,11 @@ void FTerm::resetXTermForeground()
void FTerm::resetXTermBackground()
{
// Reset the VT100 text background color
if ( xterm || osc_support )
if ( xterm || screen_terminal || osc_support )
{
oscPrefix();
putstring (OSC "111" BEL);
oscPostfix();
fflush(stdout);
}
}
@ -3148,9 +3231,11 @@ void FTerm::resetXTermBackground()
void FTerm::resetXTermCursorColor()
{
// Reset the text cursor color
if ( xterm || osc_support )
if ( xterm || screen_terminal || osc_support )
{
oscPrefix();
putstring (OSC "112" BEL);
oscPostfix();
fflush(stdout);
}
}
@ -3159,9 +3244,11 @@ void FTerm::resetXTermCursorColor()
void FTerm::resetXTermMouseForeground()
{
// Reset the mouse foreground color
if ( xterm || osc_support )
if ( xterm || screen_terminal || osc_support )
{
oscPrefix();
putstring (OSC "113" BEL);
oscPostfix();
fflush(stdout);
}
}
@ -3170,9 +3257,11 @@ void FTerm::resetXTermMouseForeground()
void FTerm::resetXTermMouseBackground()
{
// Reset the mouse background color
if ( xterm || osc_support )
if ( xterm || screen_terminal || osc_support )
{
oscPrefix();
putstring (OSC "114" BEL);
oscPostfix();
fflush(stdout);
}
}
@ -3181,9 +3270,11 @@ void FTerm::resetXTermMouseBackground()
void FTerm::resetXTermHighlightBackground()
{
// Reset the highlight background color
if ( xterm || urxvt_terminal || osc_support )
if ( xterm || screen_terminal || urxvt_terminal || osc_support )
{
oscPrefix();
putstringf (OSC "117" BEL);
oscPostfix();
fflush(stdout);
}
}
@ -3249,7 +3340,6 @@ void FTerm::setPalette (short index, int r, int g, int b)
color_str = tparm(Ic, index, rr, gg, bb, 0, 0, 0, 0, 0);
else if ( Ip )
color_str = tparm(Ip, index, 0, 0, 0, rr, gg, bb, 0, 0);
putstring (color_str);
}
else if ( linux_terminal )
@ -3430,10 +3520,10 @@ bool FTerm::hideCursor (bool on)
}
else
{
if ( vs )
appendOutputBuffer (vs);
else if ( ve )
if ( ve )
appendOutputBuffer (ve);
else if ( vs )
appendOutputBuffer (vs);
hiddenCursor = false;
}
flush_out();
@ -3619,7 +3709,7 @@ FString FTerm::getAnswerbackMsg()
tv.tv_sec = 0;
tv.tv_usec = 150000; // 150 ms
putchar(0x05); // send enquiry character
putchar (ENQ[0]); // send enquiry character
fflush(stdout);
// read the answerback message
@ -3655,10 +3745,10 @@ FString FTerm::getSecDA()
tv.tv_usec = 550000; // 150 ms
// get the secondary device attributes
putchar(0x1b); // ESC
putchar(0x5b); // [
putchar(0x3e); // >
putchar(0x63); // c
putchar (SECDA[0]);
putchar (SECDA[1]);
putchar (SECDA[2]);
putchar (SECDA[3]);
fflush(stdout);
usleep(150000); // min. wait time 150 ms (need for mintty)

15
src/fterm.h
View File

@ -70,10 +70,13 @@
#endif
// ascii sequences
#define BEL "\07" // Bell (ctrl‐g)
#define SO "\016" // Shift out (alternative character set)
#define SI "\017" // Shift in (regular character set)
#define OSC ESC "]" // Operating system command (7-bit)
#define ENQ "\005" // Enquiry
#define BEL "\007" // Bell (ctrl‐g)
#define BS "\010" // Backspace
#define SO "\016" // Shift out (alternative character set)
#define SI "\017" // Shift in (regular character set)
#define OSC ESC "]" // Operating system command (7-bit)
#define SECDA ESC "[>c" // Secondary Device Attributes
// VGA I/O-ports
#define VideoIOBase ( (inb(0x3CC) & 0x01) ? 0x3D0 : 0x3B0 )
@ -240,9 +243,11 @@ class FTerm
static char* init_256colorTerminal();
static char* parseAnswerbackMsg (char*&);
static char* parseSecDA (char*&);
static void init_termcaps();
static void oscPrefix();
static void oscPostfix();
static void init_alt_charset();
static void init_pc_charset();
static void init_termcaps();
static void init_encoding();
void init();
void finish();

4
test/ui.cpp
View File

@ -573,10 +573,14 @@ void MyDialog::cb_about (FWidget*, void*)
//----------------------------------------------------------------------
void MyDialog::cb_terminfo (FWidget*, void*)
{
int x = getColumnNumber();
int y = getLineNumber();
FMessageBox info1 ( "Environment"
, " Type: " + FString(getTermType()) + "\n"
" Name: " + FString(getTermName()) + "\n"
" Mode: " + FString(getEncoding()) + "\n"
" Size: " + FString().setNumber(x) + fc::Times
+ FString().setNumber(y) + "\n"
"Colors: " + FString().setNumber(getMaxColor())
, FMessageBox::Ok, 0, 0, this );
info1.setHeadline("Terminal:");