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Unified Diff: third_party/twisted_8_1/twisted/conch/recvline.py

Issue 12261012: Remove third_party/twisted_8_1 (Closed) Base URL: svn://svn.chromium.org/chrome/trunk/tools/build
Patch Set: Created 7 years, 10 months ago
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Index: third_party/twisted_8_1/twisted/conch/recvline.py
diff --git a/third_party/twisted_8_1/twisted/conch/recvline.py b/third_party/twisted_8_1/twisted/conch/recvline.py
deleted file mode 100644
index 6f1a0cae8e0f955b196a667688a3ed1c871c420c..0000000000000000000000000000000000000000
--- a/third_party/twisted_8_1/twisted/conch/recvline.py
+++ /dev/null
@@ -1,328 +0,0 @@
-# -*- test-case-name: twisted.conch.test.test_recvline -*-
-# Copyright (c) 2001-2004 Twisted Matrix Laboratories.
-# See LICENSE for details.
-
-"""
-Basic line editing support.
-
-@author: U{Jp Calderone<mailto:exarkun@twistedmatrix.com>}
-"""
-
-import string
-
-from zope.interface import implements
-
-from twisted.conch.insults import insults, helper
-
-from twisted.python import log, reflect
-
-_counters = {}
-class Logging(object):
- """Wrapper which logs attribute lookups.
-
- This was useful in debugging something, I guess. I forget what.
- It can probably be deleted or moved somewhere more appropriate.
- Nothing special going on here, really.
- """
- def __init__(self, original):
- self.original = original
- key = reflect.qual(original.__class__)
- count = _counters.get(key, 0)
- _counters[key] = count + 1
- self._logFile = file(key + '-' + str(count), 'w')
-
- def __str__(self):
- return str(super(Logging, self).__getattribute__('original'))
-
- def __repr__(self):
- return repr(super(Logging, self).__getattribute__('original'))
-
- def __getattribute__(self, name):
- original = super(Logging, self).__getattribute__('original')
- logFile = super(Logging, self).__getattribute__('_logFile')
- logFile.write(name + '\n')
- return getattr(original, name)
-
-class TransportSequence(object):
- """An L{ITerminalTransport} implementation which forwards calls to
- one or more other L{ITerminalTransport}s.
-
- This is a cheap way for servers to keep track of the state they
- expect the client to see, since all terminal manipulations can be
- send to the real client and to a terminal emulator that lives in
- the server process.
- """
- implements(insults.ITerminalTransport)
-
- for keyID in ('UP_ARROW', 'DOWN_ARROW', 'RIGHT_ARROW', 'LEFT_ARROW',
- 'HOME', 'INSERT', 'DELETE', 'END', 'PGUP', 'PGDN',
- 'F1', 'F2', 'F3', 'F4', 'F5', 'F6', 'F7', 'F8', 'F9',
- 'F10', 'F11', 'F12'):
- exec '%s = object()' % (keyID,)
-
- TAB = '\t'
- BACKSPACE = '\x7f'
-
- def __init__(self, *transports):
- assert transports, "Cannot construct a TransportSequence with no transports"
- self.transports = transports
-
- for method in insults.ITerminalTransport:
- exec """\
-def %s(self, *a, **kw):
- for tpt in self.transports:
- result = tpt.%s(*a, **kw)
- return result
-""" % (method, method)
-
-class LocalTerminalBufferMixin(object):
- """A mixin for RecvLine subclasses which records the state of the terminal.
-
- This is accomplished by performing all L{ITerminalTransport} operations on both
- the transport passed to makeConnection and an instance of helper.TerminalBuffer.
-
- @ivar terminalCopy: A L{helper.TerminalBuffer} instance which efforts
- will be made to keep up to date with the actual terminal
- associated with this protocol instance.
- """
-
- def makeConnection(self, transport):
- self.terminalCopy = helper.TerminalBuffer()
- self.terminalCopy.connectionMade()
- return super(LocalTerminalBufferMixin, self).makeConnection(
- TransportSequence(transport, self.terminalCopy))
-
- def __str__(self):
- return str(self.terminalCopy)
-
-class RecvLine(insults.TerminalProtocol):
- """L{TerminalProtocol} which adds line editing features.
-
- Clients will be prompted for lines of input with all the usual
- features: character echoing, left and right arrow support for
- moving the cursor to different areas of the line buffer, backspace
- and delete for removing characters, and insert for toggling
- between typeover and insert mode. Tabs will be expanded to enough
- spaces to move the cursor to the next tabstop (every four
- characters by default). Enter causes the line buffer to be
- cleared and the line to be passed to the lineReceived() method
- which, by default, does nothing. Subclasses are responsible for
- redrawing the input prompt (this will probably change).
- """
- width = 80
- height = 24
-
- TABSTOP = 4
-
- ps = ('>>> ', '... ')
- pn = 0
-
- def connectionMade(self):
- # A list containing the characters making up the current line
- self.lineBuffer = []
-
- # A zero-based (wtf else?) index into self.lineBuffer.
- # Indicates the current cursor position.
- self.lineBufferIndex = 0
-
- t = self.terminal
- # A map of keyIDs to bound instance methods.
- self.keyHandlers = {
- t.LEFT_ARROW: self.handle_LEFT,
- t.RIGHT_ARROW: self.handle_RIGHT,
- t.TAB: self.handle_TAB,
-
- # Both of these should not be necessary, but figuring out
- # which is necessary is a huge hassle.
- '\r': self.handle_RETURN,
- '\n': self.handle_RETURN,
-
- t.BACKSPACE: self.handle_BACKSPACE,
- t.DELETE: self.handle_DELETE,
- t.INSERT: self.handle_INSERT,
- t.HOME: self.handle_HOME,
- t.END: self.handle_END}
-
- self.initializeScreen()
-
- def initializeScreen(self):
- # Hmm, state sucks. Oh well.
- # For now we will just take over the whole terminal.
- self.terminal.reset()
- self.terminal.write(self.ps[self.pn])
- # XXX Note: I would prefer to default to starting in insert
- # mode, however this does not seem to actually work! I do not
- # know why. This is probably of interest to implementors
- # subclassing RecvLine.
-
- # XXX XXX Note: But the unit tests all expect the initial mode
- # to be insert right now. Fuck, there needs to be a way to
- # query the current mode or something.
- # self.setTypeoverMode()
- self.setInsertMode()
-
- def currentLineBuffer(self):
- s = ''.join(self.lineBuffer)
- return s[:self.lineBufferIndex], s[self.lineBufferIndex:]
-
- def setInsertMode(self):
- self.mode = 'insert'
- self.terminal.setModes([insults.modes.IRM])
-
- def setTypeoverMode(self):
- self.mode = 'typeover'
- self.terminal.resetModes([insults.modes.IRM])
-
- def drawInputLine(self):
- """
- Write a line containing the current input prompt and the current line
- buffer at the current cursor position.
- """
- self.terminal.write(self.ps[self.pn] + ''.join(self.lineBuffer))
-
- def terminalSize(self, width, height):
- # XXX - Clear the previous input line, redraw it at the new
- # cursor position
- self.terminal.eraseDisplay()
- self.terminal.cursorHome()
- self.width = width
- self.height = height
- self.drawInputLine()
-
- def unhandledControlSequence(self, seq):
- pass
-
- def keystrokeReceived(self, keyID, modifier):
- m = self.keyHandlers.get(keyID)
- if m is not None:
- m()
- elif keyID in string.printable:
- self.characterReceived(keyID, False)
- else:
- log.msg("Received unhandled keyID: %r" % (keyID,))
-
- def characterReceived(self, ch, moreCharactersComing):
- if self.mode == 'insert':
- self.lineBuffer.insert(self.lineBufferIndex, ch)
- else:
- self.lineBuffer[self.lineBufferIndex:self.lineBufferIndex+1] = [ch]
- self.lineBufferIndex += 1
- self.terminal.write(ch)
-
- def handle_TAB(self):
- n = self.TABSTOP - (len(self.lineBuffer) % self.TABSTOP)
- self.terminal.cursorForward(n)
- self.lineBufferIndex += n
- self.lineBuffer.extend(' ' * n)
-
- def handle_LEFT(self):
- if self.lineBufferIndex > 0:
- self.lineBufferIndex -= 1
- self.terminal.cursorBackward()
-
- def handle_RIGHT(self):
- if self.lineBufferIndex < len(self.lineBuffer):
- self.lineBufferIndex += 1
- self.terminal.cursorForward()
-
- def handle_HOME(self):
- if self.lineBufferIndex:
- self.terminal.cursorBackward(self.lineBufferIndex)
- self.lineBufferIndex = 0
-
- def handle_END(self):
- offset = len(self.lineBuffer) - self.lineBufferIndex
- if offset:
- self.terminal.cursorForward(offset)
- self.lineBufferIndex = len(self.lineBuffer)
-
- def handle_BACKSPACE(self):
- if self.lineBufferIndex > 0:
- self.lineBufferIndex -= 1
- del self.lineBuffer[self.lineBufferIndex]
- self.terminal.cursorBackward()
- self.terminal.deleteCharacter()
-
- def handle_DELETE(self):
- if self.lineBufferIndex < len(self.lineBuffer):
- del self.lineBuffer[self.lineBufferIndex]
- self.terminal.deleteCharacter()
-
- def handle_RETURN(self):
- line = ''.join(self.lineBuffer)
- self.lineBuffer = []
- self.lineBufferIndex = 0
- self.terminal.nextLine()
- self.lineReceived(line)
-
- def handle_INSERT(self):
- assert self.mode in ('typeover', 'insert')
- if self.mode == 'typeover':
- self.setInsertMode()
- else:
- self.setTypeoverMode()
-
- def lineReceived(self, line):
- pass
-
-class HistoricRecvLine(RecvLine):
- """L{TerminalProtocol} which adds both basic line-editing features and input history.
-
- Everything supported by L{RecvLine} is also supported by this class. In addition, the
- up and down arrows traverse the input history. Each received line is automatically
- added to the end of the input history.
- """
- def connectionMade(self):
- RecvLine.connectionMade(self)
-
- self.historyLines = []
- self.historyPosition = 0
-
- t = self.terminal
- self.keyHandlers.update({t.UP_ARROW: self.handle_UP,
- t.DOWN_ARROW: self.handle_DOWN})
-
- def currentHistoryBuffer(self):
- b = tuple(self.historyLines)
- return b[:self.historyPosition], b[self.historyPosition:]
-
- def _deliverBuffer(self, buf):
- if buf:
- for ch in buf[:-1]:
- self.characterReceived(ch, True)
- self.characterReceived(buf[-1], False)
-
- def handle_UP(self):
- if self.lineBuffer and self.historyPosition == len(self.historyLines):
- self.historyLines.append(self.lineBuffer)
- if self.historyPosition > 0:
- self.handle_HOME()
- self.terminal.eraseToLineEnd()
-
- self.historyPosition -= 1
- self.lineBuffer = []
-
- self._deliverBuffer(self.historyLines[self.historyPosition])
-
- def handle_DOWN(self):
- if self.historyPosition < len(self.historyLines) - 1:
- self.handle_HOME()
- self.terminal.eraseToLineEnd()
-
- self.historyPosition += 1
- self.lineBuffer = []
-
- self._deliverBuffer(self.historyLines[self.historyPosition])
- else:
- self.handle_HOME()
- self.terminal.eraseToLineEnd()
-
- self.historyPosition = len(self.historyLines)
- self.lineBuffer = []
- self.lineBufferIndex = 0
-
- def handle_RETURN(self):
- if self.lineBuffer:
- self.historyLines.append(''.join(self.lineBuffer))
- self.historyPosition = len(self.historyLines)
- return RecvLine.handle_RETURN(self)

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