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Added basic OSC handling

pull/162/head
Eugenio Parodi 3 years ago
parent
361ed52fe0
commit
ca47eb6dd8
2 changed files with 313 additions and 13 deletions
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  1. 324
      TermTk/TTkWidgets/TTkTerminal/terminal.py
  2. 2
      tests/test.pty.006.terminal.03.py

324
TermTk/TTkWidgets/TTkTerminal/terminal.py
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@ -60,14 +60,15 @@ __all__ = ['TTkTerminal']
class _termLog():
# debug = TTkLog.debug
# info = TTkLog.info
# error = TTkLog.error
# warn = TTkLog.warn
# fatal = TTkLog.fatal
error = TTkLog.error
warn = TTkLog.warn
fatal = TTkLog.fatal
debug = lambda _:None
info = lambda _:None
error = lambda _:None
warn = lambda _:None
fatal = lambda _:None
# error = lambda _:None
# warn = lambda _:None
# fatal = lambda _:None
class TTkTerminal(TTkWidget):
@dataclass
@ -91,8 +92,13 @@ class TTkTerminal(TTkWidget):
'_clipboard',
'_buffer_lines', '_buffer_screen',
'_keyboard', '_mouse', '_terminal',
'_screen_current', '_screen_normal', '_screen_alt')
'_screen_current', '_screen_normal', '_screen_alt',
# Signals
'titleChanged', 'bell')
def __init__(self, *args, **kwargs):
self.bell = pyTTkSignal()
self.titleChanged = pyTTkSignal(str)
self._shell = os.environ.get('SHELL', 'sh')
self._fd = None
self._proc = None
@ -108,9 +114,10 @@ class TTkTerminal(TTkWidget):
self._screen_current = self._screen_normal
self._clipboard = TTkClipboard()
self._screen_normal.bell.connect(lambda : _termLog.debug("BELL!!! 🔔🔔🔔"))
self._screen_alt.bell.connect( lambda : _termLog.debug("BELL!!! 🔔🔔🔔"))
# self._screen_normal.bell.connect(lambda : _termLog.debug("BELL!!! 🔔🔔🔔"))
# self._screen_alt.bell.connect( lambda : _termLog.debug("BELL!!! 🔔🔔🔔"))
self._screen_normal.bell.connect(self.bell.emit)
self._screen_alt.bell.connect( self.bell.emit)
super().__init__(*args, **kwargs)
@ -182,6 +189,8 @@ class TTkTerminal(TTkWidget):
re_DEC_SET_RST = re.compile('^\[(\??)(\d+)([lh])')
# re_CURSOR_1 = re.compile(r'^(\d+)([ABCDEFGIJKLMPSTXZHf])')
re_OSC_ps_Pt = re.compile('^(\d*);(.*)$')
@pyTTkSlot()
def _quit(self):
if self._quit_pipe:
@ -222,9 +231,10 @@ class TTkTerminal(TTkWidget):
SGR_SET = TTkTermColor.SGR_SET # Precacing those variables to
SGR_RST = TTkTermColor.SGR_RST # speedup the search
inputgenerator = self._inputGenerator()
leftUnhandled = ""
for out in inputgenerator:
sout = out.split('\033')
_termLog.debug(f"{sout[0]=}")
sout = (leftUnhandled+out).split('\033')
_termLog.debug(f"{leftUnhandled=} - {sout[0]=}")
# The first element is not an escaped sequence
if sout[0]:
@ -232,6 +242,7 @@ class TTkTerminal(TTkWidget):
escapeGenerator = (i for i in sout[1:])
for slice in escapeGenerator:
leftUnhandled = ""
ssss = slice.replace('\033','<ESC>').replace('\n','\\n').replace('\r','\\r')
_termLog.debug(f"slice: {ssss}")
@ -398,7 +409,7 @@ class TTkTerminal(TTkWidget):
self._terminal.DCSstring += sout[0]
escapeGenerator = (i for i in sout[1:])
ret, slice = __processDCSEscapeGenerator()
if not ret:
if ret:
return escapeGenerator, slice
ret, slice = __processDCSEscapeGenerator()
@ -409,11 +420,298 @@ class TTkTerminal(TTkWidget):
if not slice:
continue
# Operating System Commands = <ESC> ]
#
# OSC Ps ; Pt BEL
#
# OSC Ps ; Pt ST
# Set Text Parameters. Some control sequences return
# information:
# o For colors and font, if Pt is a "?", the control sequence
# elicits a response which consists of the control sequence
# which would set the corresponding value.
# o The dtterm control sequences allow you to determine the
# icon name and window title.
#
# XTerm accepts either BEL or ST for terminating OSC
# sequences, and when returning information, uses the same
# terminator used in a query. While the latter is preferred,
# the former is supported for legacy applications:
# o Although documented in the changes for X.V10R4 (December
# 1986), BEL as a string terminator dates from X11R4
# (December 1989).
# o Since XFree86-3.1.2Ee (August 1996), xterm has accepted ST
# (the documented string terminator in ECMA-48).
#
# Ps specifies the type of operation to perform:
# Ps = 0 -> Change Icon Name and Window Title to Pt.
# Ps = 1 -> Change Icon Name to Pt.
# Ps = 2 -> Change Window Title to Pt.
# Ps = 3 -> Set X property on top-level window. Pt should be
# in the form "prop=value", or just "prop" to delete the
# property.
# Ps = 4 ; c ; spec -> Change Color Number c to the color
# specified by spec.
#
# The spec can be a name or RGB specification as per
# XParseColor. Any number of c/spec pairs may be given. The
# color numbers correspond to the ANSI colors 0-7, their bright
# versions 8-15, and if supported, the remainder of the 88-color
# or 256-color table.
#
# If a "?" is given rather than a name or RGB specification,
# xterm replies with a control sequence of the same form which
# can be used to set the corresponding color. Because more than
# one pair of color number and specification can be given in one
# control sequence, xterm can make more than one reply.
#
# Ps = 5 ; c ; spec -> Change Special Color Number c to the
# color specified by spec.
#
# The spec parameter can be a name or RGB specification as per
# XParseColor. Any number of c/spec pairs may be given. The
# special colors can also be set by adding the maximum number of
# colors (e.g., 88 or 256) to these codes in an OSC 4 control:
#
# Pc = 0 <- resource colorBD (BOLD).
# Pc = 1 <- resource colorUL (UNDERLINE).
# Pc = 2 <- resource colorBL (BLINK).
# Pc = 3 <- resource colorRV (REVERSE).
# Pc = 4 <- resource colorIT (ITALIC).
#
# Ps = 6 ; c ; f -> Enable/disable Special Color Number c.
# The second parameter tells xterm to enable the corresponding
# color mode if nonzero, disable it if zero. OSC 6 is the same
# as OSC 1 0 6 .
#
# If no parameters are given, this control has no effect.
#
# The 10 colors (below) which may be set or queried using 1 0
# through 1 9 are denoted dynamic colors, since the
# corresponding control sequences were the first means for
# setting xterm's colors dynamically, i.e., after it was
# started. They are not the same as the ANSI colors (however,
# the dynamic text foreground and background colors are used
# when ANSI colors are reset using SGR 3 9 and 4 9 ,
# respectively). These controls may be disabled using the
# allowColorOps resource. At least one parameter is expected
# for Pt. Each successive parameter changes the next color in
# the list. The value of Ps tells the starting point in the
# list. The colors are specified by name or RGB specification
# as per XParseColor.
#
# If a "?" is given rather than a name or RGB specification,
# xterm replies with a control sequence of the same form which
# can be used to set the corresponding dynamic color. Because
# more than one pair of color number and specification can be
# given in one control sequence, xterm can make more than one
# reply.
#
# Ps = 1 0 -> Change VT100 text foreground color to Pt.
# Ps = 1 1 -> Change VT100 text background color to Pt.
# Ps = 1 2 -> Change text cursor color to Pt.
# Ps = 1 3 -> Change pointer foreground color to Pt.
# Ps = 1 4 -> Change pointer background color to Pt.
# Ps = 1 5 -> Change Tektronix foreground color to Pt.
# Ps = 1 6 -> Change Tektronix background color to Pt.
# Ps = 1 7 -> Change highlight background color to Pt.
# Ps = 1 8 -> Change Tektronix cursor color to Pt.
# Ps = 1 9 -> Change highlight foreground color to Pt.
#
# Ps = 2 2 -> Change pointer cursor to Pt.
#
# Ps = 4 6 -> Change Log File to Pt. This is normally
# disabled by a compile-time option.
#
# Ps = 5 0 -> Set Font to Pt. These controls may be disabled
# using the allowFontOps resource. If Pt begins with a "#",
# index in the font menu, relative (if the next character is a
# plus or minus sign) or absolute. A number is expected but not
# required after the sign (the default is the current entry for
# relative, zero for absolute indexing).
#
# The same rule (plus or minus sign, optional number) is used
# when querying the font. The remainder of Pt is ignored.
#
# A font can be specified after a "#" index expression, by
# adding a space and then the font specifier.
#
# If the TrueType Fonts menu entry is set (the renderFont
# resource), then this control sets/queries the faceName
# resource.
#
# Ps = 5 1 -> reserved for Emacs shell.
#
# Ps = 5 2 -> Manipulate Selection Data. These controls may
# be disabled using the allowWindowOps resource. The parameter
# Pt is parsed as
# Pc ; Pd
#
# The first, Pc, may contain zero or more characters from the
# set c , p , q , s , 0 , 1 , 2 , 3 , 4 , 5 , 6 , and 7 . It is
# used to construct a list of selection parameters for
# clipboard, primary, secondary, select, or cut-buffers 0
# through 7 respectively, in the order given. If the parameter
# is empty, xterm uses s 0 , to specify the configurable
# primary/clipboard selection and cut-buffer 0.
#
# The second parameter, Pd, gives the selection data. Normally
# this is a string encoded in base64 (RFC-4648). The data
# becomes the new selection, which is then available for pasting
# by other applications.
#
# If the second parameter is a ? , xterm replies to the host
# with the selection data encoded using the same protocol. It
# uses the first selection found by asking successively for each
# item from the list of selection parameters.
#
# If the second parameter is neither a base64 string nor ? ,
# then the selection is cleared.
#
# Ps = 6 0 -> Query allowed features (XTQALLOWED). XTerm
# replies with
#
# OSC 6 0 ; Pt ST
#
# where Pt is a comma-separated list of the allowed optional
# runtime features, i.e., zero or more of these resource names:
#
# allowColorOps
# allowFontOps
# allowMouseOps
# allowPasteControls
# allowTcapOps
# allowTitleOps
# allowWindowOps
#
# Ps = 6 1 -> Query disallowed features (XTQDISALLOWED). The
# second parameter (i.e., the main feature) must be one of the
# resource names returned by OSC 6 0 . XTerm replies with
#
# OSC 6 1 ; Pt ST
#
# where Pt is a comma-separated list of the optional runtime
# features which would be disallowed if the main feature is
# disabled.
#
# Ps = 1 0 4 ; c -> Reset Color Number c. It is reset to the
# color specified by the corresponding X resource. Any number
# of c parameters may be given. These parameters correspond to
# the ANSI colors 0-7, their bright versions 8-15, and if
# supported, the remainder of the 88-color or 256-color table.
# If no parameters are given, the entire table will be reset.
#
# Ps = 1 0 5 ; c -> Reset Special Color Number c. It is reset
# to the color specified by the corresponding X resource. Any
# number of c parameters may be given. These parameters
# correspond to the special colors which can be set using an OSC
# 5 control (or by adding the maximum number of colors using an
# OSC 4 control).
#
# If no parameters are given, all special colors will be reset.
#
# Ps = 1 0 6 ; c ; f -> Enable/disable Special Color Number c.
# The second parameter tells xterm to enable the corresponding
# color mode if nonzero, disable it if zero.
#
# Pc = 0 <- resource colorBDMode (BOLD).
# Pc = 1 <- resource colorULMode (UNDERLINE).
# Pc = 2 <- resource colorBLMode (BLINK).
# Pc = 3 <- resource colorRVMode (REVERSE).
# Pc = 4 <- resource colorITMode (ITALIC).
# Pc = 5 <- resource colorAttrMode (Override ANSI).
#
# If no parameters are given, this control has no effect.
#
# The dynamic colors can also be reset to their default
# (resource) values:
# Ps = 1 1 0 -> Reset VT100 text foreground color.
# Ps = 1 1 1 -> Reset VT100 text background color.
# Ps = 1 1 2 -> Reset text cursor color.
# Ps = 1 1 3 -> Reset pointer foreground color.
# Ps = 1 1 4 -> Reset pointer background color.
# Ps = 1 1 5 -> Reset Tektronix foreground color.
# Ps = 1 1 6 -> Reset Tektronix background color.
# Ps = 1 1 7 -> Reset highlight color.
# Ps = 1 1 8 -> Reset Tektronix cursor color.
# Ps = 1 1 9 -> Reset highlight foreground color.
#
# Ps = I ; c -> Set icon to file. Sun shelltool, CDE dtterm.
# The file is expected to be XPM format, and uses the same
# search logic as the iconHint resource.
#
# Ps = l ; c -> Set window title. Sun shelltool, CDE dtterm.
#
# Ps = L ; c -> Set icon label. Sun shelltool, CDE dtterm.
elif slice and slice[0] == ']':
# Sarting OSC (ESC ]) and wait for ST (ESC \) or BEL (\a)
slice = slice[1:]
oscString = ""
def __checkOSCBell(__osc:str, __oscString:str):
if '\a' in __osc: # BEL (Ctrl-G) (\a) as terminator
belIndex = __osc.index('\a')
__oscString += __osc[:belIndex]
return True, __osc[belIndex+1:], __oscString
__oscString += __osc
return False, "", __oscString
# I am using a closure in order to exit the routine at the end
def __processOSCEscapeGenerator(__oscString:str):
_slice = ""
for __osc in escapeGenerator:
if __osc[0] == '\\': # ST (0x9c) (<ESC> \) as terminator
return True, __osc[1:], __oscString
ret, _slice = __checkOSCBell(__osc, __oscString)
if ret:
return ret, _slice, __oscString
return False, "", __oscString
def __processOSCInputGenerator(__oscString:str):
# If the terminator is not in the current escaped slices
# I need to fetch from the input until I got all of them
# This is not the nicest thing but it save a bunch of extra
# hcecks at any input just to find if we are in OSC mode or not
for out in inputgenerator:
sout = out.split('\033')
self._terminal.DCSstring += sout[0]
escapeGenerator = (i for i in sout[1:])
ret, _slice, __oscString = __processOSCEscapeGenerator(__oscString)
if ret:
return escapeGenerator, slice, __oscString
ret, slice, oscString = __checkOSCBell(slice,oscString)
if not ret:
ret, slice, oscString = __processOSCEscapeGenerator(oscString)
if not ret:
escapeGenerator, slice, oscString = __processOSCInputGenerator(oscString)
_termLog.info(f"OSC: {oscString}")
if m := TTkTerminal.re_OSC_ps_Pt.match(oscString):
en = m.end()
ps = int(m.group(1))
pt = m.group(2)
# Ps specifies the type of operation to perform:
# Ps = 0 -> Change Icon Name and Window Title to Pt.
# Ps = 1 -> Change Icon Name to Pt.
# Ps = 2 -> Change Window Title to Pt.
if ps in (0,1,2):
self.titleChanged.emit(pt)
else:
_termLog.warn(f"OSC: {oscString} - Not Recognised - yet")
if not slice:
continue
################################################
# Everything else
################################################
else:
_termLog.warn(f"Unhandled Slice:'<ESC>{slice}'".replace('\n','\\n'))
leftUnhandled = "\033"+slice
continue
self._screen_current.pushLine(slice,irm=self._terminal.IRM)

2
tests/test.pty.006.terminal.03.py
Unescape View File

@ -76,6 +76,8 @@ cb_q.stateChanged.connect(lambda x: ttk.TTkTerm.setSigmask(ttk.TTkTerm.Sigmask.C
win1 = ttk.TTkWindow(pos=(90,5), size=(70,15), title="Terminallo n.1", border=True, layout=ttk.TTkVBoxLayout(), flags = ttk.TTkK.WindowFlag.WindowMinMaxButtonsHint)
term1 = ttk.TTkTerminal(parent=win1)
term1.bell.connect(lambda : ttk.TTkLog.debug("BELL!!! 🔔🔔🔔"))
term1.titleChanged.connect(win1.setTitle)
term1.runShell()
win2 = ttk.TTkWindow(pos=(10,0), size=(100,30), title="Terminallo n.2", border=True, layout=ttk.TTkVBoxLayout(), flags = ttk.TTkK.WindowFlag.WindowMinMaxButtonsHint)

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