#!/usr/bin/env python import curses, curses.ascii, getpass, os, re, string, sys, termios, time import traceback from subprocess import Popen, PIPE, STDOUT import buffer, buffer.about, buffer.color, buffer.console, buffer.data import buffer.fs import bufferlist, color, completer, ispell, keyinput, method, minibuffer import mode, util, window from point import Point class Application(object): def __init__(self, stdscr, buffers=[], jump_to_line=None, init_mode=None): # initalize curses primitives self.stdscr = stdscr self.y, self.x = self.stdscr.getmaxyx() # initialize some basic stuff self.config = {} self.highlighted_ranges = [] self.mini_active = False self.mini_buffer = None self.mini_prompt = "" self.error_string = "" self.error_timestamp = None self.need_draw = True self.input = keyinput.Handler() # let's prepopulate some default token colors self.token_colors = { 'comment': ('red', 'default', 'bold'), 'comment.start': ('red', 'default', 'bold'), 'comment.data': ('red', 'default', 'bold'), 'comment.null': ('red', 'default', 'bold'), 'comment.end': ('red', 'default', 'bold'), 'continuation': ('red', 'default', 'bold'), 'string.start': ('green', 'default', 'bold'), 'string.data': ('green', 'default', 'bold'), 'string.null': ('green', 'default', 'bold'), 'string.hex': ('magenta', 'default', 'bold'), 'string.octal': ('magenta', 'default', 'bold'), 'string.escaped': ('magenta', 'default', 'bold'), 'string.end': ('green', 'default', 'bold'), 'char': ('green', 'default', 'bold'), 'integer': ('default', 'default', 'bold'), 'float': ('default', 'default', 'bold'), 'number': ('default', 'default', 'bold'), 'label': ('magenta', 'default', 'bold'), 'keyword': ('cyan', 'default', 'bold'), 'function': ('blue', 'default', 'bold'), 'builtin': ('magenta', 'default', 'bold'), 'method': ('cyan', 'default', 'bold'), 'bareword': ('default', 'default', 'bold'), 'delimiter': ('default', 'default', 'bold'), } self.default_color = ('default', 'default',) # initialize configuration defaults self._load_config_defaults() # initialize our colors if curses.has_colors(): curses.start_color() try: curses.use_default_colors() color.default_color = True except: color.default_color = False color.init() # this is how we can change color settings if curses.can_change_color(): #curses.init_color(curses.COLOR_BLUE, 750, 400, 0) pass else: self.set_error("Dynamic color not available") # initialize our modes # the first dict stores our modes by (lowercase) name, and the other # dicts all store various ways to "auto-detecting" the correct mode, # in the precedence with which they are used. self.modes = {} self.mode_paths = {} self.mode_basenames = {} self.mode_extensions = {} self.mode_detection = {} # initialize our methods self.methods = {} names = ('method', 'method.svn', 'method.cvs', 'method.search', 'method.buffers', 'method.move', 'method.shell', 'method.introspect', 'method.help', 'method.numbers') for name in names: exec("import %s" % name) mod = eval(name) for mname in dir(mod): cls = eval("%s.%s" % (name, mname)) if hasattr(cls, '_is_method') and cls._is_method: self.methods[cls._name()] = cls() # ok, now let's load all the "standard" modes mode.install(self) names = ('blame', 'c', 'console', 'consolemini', 'css', 'diff', 'dir', 'elisp', 'hex', 'html', 'java', 'javascript', 'lisp', 'make', 'mini', 'mutt', 'nasm', 'ocaml', 'perl', 'python', 'replace', 'rst', 'scheme', 'search', 'sh', 'sql', 'tt', 'text', 'text2', 'which', 'xml', 'cheetah', 'colortext', 'latex', 'insertmini', 'conf', 'haskell', 'erlang', 'iperl', 'iperlmini', 'ipython', 'ipythonmini', 'awk', 'shell', 'shellmini', 'fstab', 'yacc', 'pipe', ) for name in names: exec("import mode.%s; mode.%s.install(self)" % (name, name)) # create all the insert methods for the character ranges we like for c in string.letters + string.digits + string.punctuation: obj = method.InsertString(c) self.methods[obj.name] = obj obj = method.OverwriteChar(c) self.methods[obj.name] = obj # buffer list stuff height = self.y - 1 width = self.x self.bufferlist = bufferlist.BufferList(height, width) self.active_slot = 0 self.complete_slot = None # run user custom code here self.rcerror = None self.loadrc() # initialize our buffers # note that only the first buffer will be initially visible buffers.append(buffer.about.AboutBuffer()) if self.rcerror: buffers.insert(0, buffer.data.DataBuffer('*RcError*', self.rcerror)) # build windows for our buffers for b in buffers: if b.modename: window.Window(b, self) else: window.Window(b, self, mode_name=init_mode) self.bufferlist.add_buffer(b) self.bufferlist.set_slot(self.active_slot, buffers[0]) # see if the user has requested that we go to a particular line if not self.rcerror and jump_to_line: w = self.bufferlist.slots[0].window self.methods['goto-line'].execute(w, lineno=jump_to_line) # initialize our kill ring and last action self.kill_ring = [] self.kill_commands = ['kill', 'kill-region'] self.last_action = None self.last_search = None self.last_replace_before = None self.last_replace_after = None self.registers = {} # initialize tab handlers completer.set('path', completer.FileCompleter(self)) completer.set('buffer', completer.BufferCompleter(self)) completer.set('command', completer.CommandCompleter(self)) completer.set('shell', completer.ShellCompleter(self)) completer.set('config', completer.ConfigCompleter(self)) completer.set('method', completer.MethodCompleter(self)) completer.set('register', completer.RegisterCompleter(self)) completer.set('mode', completer.ModeCompleter(self)) completer.set('token', completer.TokenCompleter(self)) # set up curses self.win = curses.newwin(self.y, self.x, 0, 0) self.win.leaveok(0) curses.meta(1) curses.cbreak() curses.noecho() curses.nonl() curses.halfdelay(1) curses.def_prog_mode() def _load_config_defaults(self): self.config['ignore_suffix'] = ['~', '-'] self.config['error_timeout'] = -1 self.config['max_error_len'] = 192 self.config['max_num_kills'] = 64 self.config['word_letters'] = string.letters + string.digits self.config['default_color'] = ('default', 'default',) def completion_window_is_open(self): n = self.complete_slot if n is None: pass elif n >= len(self.bufferlist.slots): self.complete_slot = None elif self.bufferlist.slots[n].window is None: self.complete_slot = None elif not hasattr(self.bufferlist.slots[n].window.buffer, '_completion'): self.complete_slot = None else: return True return False def get_completion_window(self): return self.bufferlist.slots[self.complete_slot].window def open_completion_buffer(self, s, candidates): opened = False previous = None if len(self.bufferlist.slots) == 1: self.add_slot() opened = True n = len(self.bufferlist.slots) - 1 if self.active_slot == n: n -= 1 if not opened: previous = self.bufferlist.slots[n].window.buffer lines = [] clen = len(candidates) if clen > self.bufferlist.slots[n].height: maxlen = 0 for c in candidates: maxlen = max(maxlen, len(c)) # NOTE: this is not an optimal packing, but it's fast and easy to # understand. i encourage someone else to write something better. numcols = max(self.bufferlist.slots[n].width // (maxlen + 2), 1) numrows = clen - ((clen // numcols) * (numcols - 1)) for i in range(0, numrows): names = [] index = i * numcols for j in range(0, numcols): if index + j < clen: names.append('%-*s' % (maxlen, candidates[index + j])) else: break lines.append(' '.join(names)) else: lines = list(candidates) data = '\n'.join(lines) b = self.data_buffer("*Completions*", data, switch_to=False) b._completion = s b._opened = opened b._previous = previous self.bufferlist.set_slot(n, b) self.complete_slot = n def close_completion_buffer(self): w = self.get_completion_window() opened = w.buffer._opened if opened: self.bufferlist.remove_slot(self.complete_slot) else: self.bufferlist.set_slot(self.complete_slot, w.buffer._previous) self.close_buffer(w.buffer) self.complete_slot = None def set_completer(self, datatype, comp): completer.set(datatype, comp) # this sets up a mode, as well as optionally adding information on when to # auto-load the mode def setmode(self, name, cls, paths=[], bases=[], exts=[], detection=[]): self.modes[name] = cls for p in paths: self.mode_paths[p] = name for b in bases: self.mode_basenames[b] = name for e in exts: self.mode_extensions[e] = name for d in detection: self.mode_detection[d] = name def globals(self): return globals() def locals(self): return locals() def add_slot(self): # XYZ b = self.bufferlist.slots[self.active_slot].window.buffer n = self.bufferlist.add_slot() self.bufferlist.set_slot(n, b) def remove_slot(self, n): assert len(self.bufferlist.slots) > 1, "oh no you didn't!" assert n >= 0 and n < len(self.bufferlist.slots), \ "invalid slot: %r (%r)" % (n, len(self.bufferlist.slots)) self.bufferlist.remove_slot(n) if self.active_slot > n: self.active_slot = max(0, self.active_slot - 1) #XYZ def single_slot(self): while len(self.bufferlist.slots) > 1: if self.active_slot == 0: self.remove_slot(1) else: self.remove_slot(0) def get_window_height_width(self, i): assert i >= 0 and i < len(self.bufferlist.slots), \ "invalid slot: %r" % slotname slot = self.bufferlist.slots[i] return (slot.height, slot.width) # files and stuff def close_buffer(self, b): blist = self.bufferlist blist.remove_buffer(b) b.close() active_slot = blist.slots[self.active_slot] for i in range(0, len(blist.slots)): if blist.slots[i].is_empty(): if blist.hidden_buffers: blist.set_slot(i, blist.hidden_buffers[0]) else: blist.set_slot(i, active_slot.window.buffer) def open_path(self, path, binary=False, cipher=None, password=None): path = os.path.abspath(os.path.realpath(util.expand_tilde(path))) b = self.get_buffer_by_path(path) if b is None: name = os.path.basename(path) if self.has_buffer_name(name): i = 1 auxname = '%s/%d' % (name, i) while self.has_buffer_name(auxname): i += 1 auxname = '%s/%d' % (name, i) name = auxname mode_name = None if cipher is None: if not os.path.exists(path) or os.path.isfile(path): if binary: b = buffer.Binary32Buffer(path, name=name) else: b = buffer.FileBuffer(path, name=name) elif os.path.isdir(path): b = buffer.fs.DirBuffer(path, name=name) mode_name = 'dir' else: raise Exception, "not a file or dir: %r" % path elif cipher == 'aes': if not password: raise Exception, "password is required" if not os.path.exists(path) or os.path.isfile(path): b = buffer.AesBuffer(path, password, name=name) else: raise Exception, "not a file or dir: %r" % path try: b.open() except buffer.BinaryDataException: if binary: raise else: binary = True b = buffer.Binary32Buffer(path, name=name) b.open() if mode_name is None: mode_name = 'hex' window.Window(b, self, height=0, width=0, mode_name=mode_name) self.add_buffer(b) return b # mini buffer handling def get_mini_buffer(self): return self.mini_buffer def mini_buffer_is_open(self): return self.mini_buffer is not None def open_mini_buffer(self, prompt, cb, method=None, tabber=None, modename=None, startvalue=None): if self.mini_buffer_is_open(): self.close_mini_buffer() self.mini_prompt = prompt self.mini_buffer = minibuffer.MiniBuffer(cb, method, tabber, modename) try: w = self.x - 1 - len(self.mini_prompt) - 1 window.Window(self.mini_buffer, self, height=1, width=w) if startvalue: self.mini_buffer.set_data(startvalue) self.mini_active = True except minibuffer.MiniBufferError: self.mini_buffer = None self.mini_prompt = '' def exec_mini_buffer(self): self.mini_buffer.callback(self.mini_buffer.make_string()) self.close_mini_buffer() def close_mini_buffer(self): self.mini_active = False if self.mini_buffer_is_open(): self.mini_buffer.close() self.mini_buffer = None self.mini_prompt = "" assert not self.mini_active def get_mini_buffer_prompt(self): return self.mini_prompt def set_mini_buffer_prompt(self, p): self.mini_prompt = p # window handling def toggle_window(self): blist = self.bufferlist assert 0 <= self.active_slot and self.active_slot < len(blist.slots) self.active_slot = (self.active_slot + 1) % len(blist.slots) def window(self): return self.bufferlist.slots[self.active_slot].window def active_window(self): if self.mini_active: return self.mini_buffer.windows[0] else: slot = self.active_slot assert 0 <= slot and slot < len(self.bufferlist.slots), \ "0 <= %d < %d" % (slot, len(self.bufferlist.slots)) i = self.active_slot return self.bufferlist.slots[i].window # buffer handling def new_file_buffer(self, path, data, switch_to=True): assert not self.has_buffer_name(path), '%r is already open' % path assert not os.path.exists(path), '%r already exists' % path # touch the file f = open(path, 'w') f.write(data) f.close() # create the buffer b = buffer.FileBuffer(path) try: b.open() except buffer.BinaryDataException: b = buffer.Binary32Buffer(path) b.open() b.modename = 'hex' window.Window(b, self, height=0, width=0) self.add_buffer(b) if switch_to: self.switch_buffer(b) def data_buffer(self, name, data, switch_to=True, modename=None): if self.has_buffer_name(name): b = self.bufferlist.buffer_names[name] self.remove_buffer(b) b = buffer.data.DataBuffer(name, data) if modename is not None: b.modename = modename window.Window(b, self, height=0, width=0) self.add_buffer(b) if switch_to: self.switch_buffer(b) return b def color_data_buffer(self, name, data, switch_to=True, modename='colortext'): if self.has_buffer_name(name): b = self.bufferlist.buffer_names[name] self.remove_buffer(b) b = buffer.color.ColorDataBuffer(name, data) if modename is not None: b.modename = modename window.Window(b, self, height=0, width=0) self.add_buffer(b) if switch_to: self.switch_buffer(b) def get_buffer_by_path(self, path): return self.bufferlist.get_buffer_by_path(path) def has_buffer_name(self, name): return self.bufferlist.has_buffer_name(name) def get_buffer_by_name(self, name): return self.bufferlist.get_buffer_by_name(name) def has_buffer(self, b): return self.bufferlist.has_buffer(b) def add_buffer(self, b): self.bufferlist.add_buffer(b) def remove_buffer(self, b): assert self.bufferlist.has_buffer(b), "can't kill what's not there" assert len(self.bufferlist.buffers) > 1, "can't kill with no other buffers" self.bufferlist.remove_buffer(b) b.close() if self.bufferlist.empty_slot(self.active_slot): b2 = self.bufferlist.hidden_buffers[0] self.bufferlist.set_slot(self.active_slot, b2) def switch_buffer(self, b): assert self.has_buffer_name(b.name()), "buffer %s does not exist" % (b.name()) assert 0 <= self.active_slot and self.active_slot < len(self.bufferlist.slots) #self.add_window_to_buffer(b, self.active_slot) self.bufferlist.set_slot(self.active_slot, b) def add_window_to_buffer(self, b, slotname): # XYZ if not b.has_window(slotname): slot = self.bufferlist.slots[slotname] window.Window(b, self, height=slot.height, width=slot.width) # error string handling def set_error(self, s): self.error_string = s self.error_timestamp = time.time() def clear_error(self): self.error_string = "" self.error_timestamp = None def resize_event(self): (self.y, self.x) = self.stdscr.getmaxyx() self.resize_slots() def resize_slots(self): n = len(self.bufferlist.slots) assert n > 0 x = self.x - 1 y_sum = self.y - n self.bufferlist.resize(y_sum, x) # exit def exit(self): self.done = True # kill stack manipulation def push_kill(self, s): if s is not None: if self.last_action in self.kill_commands and \ len(self.kill_ring): self.kill_ring[-1] = self.kill_ring[-1] + s else: self.kill_ring.append(s) #if KILL_RING_LIMIT and len(self.kill_ring) > KILL_RING_LIMIT: maxnum = self.config['max_num_kills'] if maxnum and len(self.kill_ring) > maxnum: self.kill_ring.pop(0) def pop_kill(self): return self.kill_ring.pop(-1) def has_kill(self, i=-1): return len(self.kill_ring) >= abs(i) def get_kill(self, i=-1): return self.kill_ring[i] # undo/redo def undo(self): try: self.window().undo() except Exception, e: self.set_error("%s" % (e)) def redo(self): try: self.window().redo() except Exception, e: self.set_error("%s" % (e)) # action creating methods def make_insert_action(self, c): return lambda: self.window().insert_string(c) def make_window_action(self, methodname): f = getattr(self.window(), methodname) f() # we are evil def eval(self, s): return eval(s) # load user configuration NOW def loadrc(self): path = os.path.join(os.getenv('HOME'), '.pmc', 'conf') if os.path.exists(path): try: f = open(path, 'r') #execfile(path) exec(f) f.close() except Exception, e: s = traceback.format_exc() self.rcerror = 'There was an error during startup:\n\n%s' % s # the mighty run-loop! def run(self): self.done = False self.draw() if os.getenv('PMC_EARLY_OUT'): return while not self.done: i = self.win.getch() #if not self.mini_active and self.completion_window_is_open(): # self.close_completion_buffer() if i == curses.KEY_RESIZE: while i == curses.KEY_RESIZE: i = self.win.getch() self.resize_event() self.need_draw = True err = '' try: self.input.parse(i) except Exception, e: err = str(e) if self.input.tokens: self.need_draw = True while self.input.tokens: t = self.input.tokens.pop(0) self.active_window().mode.handle_token(t) if self.need_draw: self.draw(err) self.need_draw = False # clear the error line; it might look confusing to the user try: self.win.addstr(self.y-1, 0, ' ' * self.x) except: pass self.win.refresh() return # highlighting def add_highlighted_range(self, hr): self.highlighted_ranges.append(hr) def clear_highlighted_ranges(self, name=None): if name is None: self.highlighted_ranges = [] else: i = 0 while i < len(self.highlighted_ranges): if self.highlighted_ranges[i].name == name: del self.highlighted_ranges[i] else: i += 1 def run_external(self, *args): curses.reset_shell_mode() try: pipe = Popen(args) pipe.wait() except OSError, e: self.set_error("%s: %s" % (args[0], e)) curses.reset_prog_mode() self.win.redrawwin() self.draw() # full screen drawer def draw(self, err=""): try: n = len(self.get_minibuffer_lines()) assert n > 0 if n != self.bufferlist.mini_height: self.bufferlist.resize_mini(n) self.draw_slots() self.draw_minibuffer() self.draw_cursor() self.win.refresh() except Exception, e: raise # ok, so there was a problem... # let's see if the screen changed sizes and if so, resize our slots self.resize_event() if err: self.set_error(err) if (self.error_timestamp is not None and self.config['error_timeout'] > 0 and time.time() - self.error_timestamp > self.config['error_timeout']): self.clear_error() (y, x) = self.stdscr.getmaxyx() if y != self.y or x != self.x: self.resize_event() def draw_cursor(self): if self.mini_active: b = self.mini_buffer w = b.windows[0] p = w.logical_cursor() x = p.x + len(self.mini_prompt) y = p.y if y >= len(b.lines): return lines = self.get_minibuffer_lines() while x > self.x - 1: y += 1 x -= self.x - 1 vy, vx = self.y - len(lines) + y, x else: slot = self.bufferlist.slots[self.active_slot] w = slot.window swidth = slot.width - w.mode.lmargin - w.mode.rmargin if w.active_point is not None and w.point_is_visible(w.active_point): p = w.active_point else: p = w.logical_cursor() blen = len(w.buffer.lines) count = 0 (x, y) = w.first.xy() (vy, vx) = (None, None) while count < slot.height: if p.y == y and p.x >= x and p.x <= x + swidth: vy, vx = slot.y_offset + count, p.x - x + w.mode.lmargin break if y >= blen or x + swidth >= len(w.buffer.lines[y]): x = 0 y += 1 else: x += swidth count += 1 if vy is None or vx is None: return try: self.win.move(vy, vx) except: raise Exception, "(%r=%r) no (%r)" % ((vx, vy), p, (self.x, self.y)) # sub-drawing methods def draw_slots(self): self.win.erase() for i in range(0, len(self.bufferlist.slots)): slot = self.bufferlist.slots[i] self.draw_slot(i) self.draw_status_bar(i) def highlight_char(self, sy, sx, fg='default', bg='default'): junk = self.win.inch(sy, sx) char = chr(junk & 255) attr = color.build(fg, bg) try: self.win.addstr(sy, sx, char, attr) except Exception, e: raise Exception, "(%d, %d, %r, %r) v. (%d, %d)" % \ (sy, sx, fg, bg, self.y, self.x) def highlight_chars(self, sy, sx1, sx2, fg='default', bg='default'): assert sx2 < self.x, "%d < %d" % (sx2, self.x) for x in range(sx1, sx2): self.highlight_char(sy, x, fg, bg) def map_point(self, p): count = 0 x, y = w.first.xy() while count < slot.height: if p1.y == y and p1.x >= x and p1.x - x < slot.width: return (count, x) if x + slot.width > len(w.buffer.lines[y]): x = 0 y += 1 else: x += slot.width count += 1 def draw_slot(self, i): assert self.active_slot < len(self.bufferlist.slots), \ "strange: %d < %d" % (self.active_slot, len(self.bufferlist.slots)) assert i < len(self.bufferlist.slots), \ "puzzling: %d < %d" % (i, len(self.bufferlist.slots)) slot = self.bufferlist.slots[i] if slot.window is None: return w = slot.window modename = w.mode.name() self._draw_slot(i) # highlighted regions for hr in self.highlighted_ranges: (high_w, p1, p2, fg, bg) = hr if w is high_w and p2 >= w.first and p1 <= w.last: count = 0 x, y = w.first.xy() px = p1.x while count < slot.height: if p1.y == y and px >= x and px - x < slot.width: if slot.width > p2.x - x: self.highlight_chars(slot.y_offset + count, px-x + w.mode.lmargin, p2.x-x, fg, bg) break else: self.highlight_chars(slot.y_offset + count, px-x + w.mode.lmargin, slot.width - 1, fg, bg) px += slot.width - px + x - 1 if x + slot.width > len(w.buffer.lines[y]): x = 0 y += 1 else: x += slot.width - 1 count += 1 if w.margins_visible: for (limit, shade) in w.margins: if limit < self.x: for j in range(0, slot.height): char = chr(self.win.inch(j + slot.y_offset, limit) & 255) attr = color.build('default', shade, 'bold') self.win.addstr(j + slot.y_offset, limit + w.mode.lmargin, char, attr) def _draw_slot(self, i): slot = self.bufferlist.slots[i] w = slot.window redattr = color.build_attr(color.pairs('red', 'default')) x, y = w.first.xy() lm, rm = w.mode.lmargin, w.mode.rmargin lines = w.buffer.lines count = 0 k = x // (slot.width - lm - rm) modename = w.mode.name() lit = w.mode.name() in w.buffer.highlights ended = False while count < slot.height: if lit: rlines = w.render_line_lit(y, slot.width - lm - rm) else: rlines = w.render_line_raw(y, slot.width - lm - rm) for j in range(k, len(rlines)): if lm: lcont = j > 0 for rstr in slot.window.mode.get_lmargin(w, y, x, ended, lcont): rstr.draw(self.win, slot.y_offset + count, 0) for rstr in rlines[j]: rstr.draw(self.win, slot.y_offset + count, 0 + lm) if rm: rcont = j < len(rlines) - 1 for rstr in slot.window.mode.get_rmargin(w, y, x, ended, rcont): rstr.draw(self.win, slot.y_offset + count, slot.width - rm) count += 1 if count >= slot.height: break k = 0 y += 1 ended = ended or y >= len(w.buffer.lines) def draw_status_bar(self, slotname): slot = self.bufferlist.slots[slotname] if slot.window is None: return status = slot.window.mode.get_status_bar() status = status.ljust(slot.width)[:slot.width] self.win.addstr(slot.height + slot.y_offset, 0, status, curses.A_REVERSE) # input bar drawing def draw_minibuffer(self): lines = self.get_minibuffer_lines() for i in range(0, len(lines)): line = '%- *s' % (self.x - 1, lines[i]) try: self.win.addstr(self.y - len(lines) + i, 0, line) except: pass def get_minibuffer_lines(self): lines, lines2 = [], [] if self.error_string: maxlen = self.config['max_error_len'] if len(self.error_string) < maxlen: s = self.error_string else: s = self.error_string[:maxlen] + '...' elif self.mini_buffer_is_open(): s = self.mini_prompt + self.mini_buffer.lines[0] lines2 = self.mini_buffer.lines[1:] else: return [' ' * (self.x - 1)] i = 0 lines = [] while i < len(s): lines.append(s[i:i + self.x - 1]) i += self.x - 1 lines.extend(lines2) return lines def open_aes_file(path, name=None, binary=False): if os.path.isfile(path) or not os.path.exists(path): p = getpass.getpass("Please enter the AES password: ") return buffer.AesBuffer(path, p, name) else: raise Exception, "can't open %r; unsupported file type" % path def open_plain_file(path, name=None, binary=False): if os.path.isfile(path) or not os.path.exists(path): if binary: return buffer.Binary32Buffer(path, name) else: return buffer.FileBuffer(path, name) elif os.path.isdir(path): return buffer.fs.DirBuffer(path, name) else: raise Exception, "can't open %r; unsupported file type" % path def run_app(stdscr, buffers, jump_to_line=None, init_mode=None): curses.def_shell_mode() a = Application(stdscr, buffers, jump_to_line, init_mode) a.run() return 0 if __name__ == "__main__": ciphers = { 'none': open_plain_file, 'aes': open_aes_file, } # preprocess args argv = list(sys.argv[1:]) goto_line = None i = 0 while i < len(argv): if argv[i] == '-nw': del argv[i] elif argv[i].startswith('+'): goto_line = int(argv.pop(i)) else: i += 1 import optparse parser = optparse.OptionParser() parser.set_defaults(debug=False) parser.set_defaults(goto=None) parser.set_defaults(mode=None) parser.set_defaults(cipher='none') parser.set_defaults(linetype='unix') parser.set_defaults(binary=False) parser.add_option('-b', '--binary', dest='binary', action='store_true', help='open file(s) in hex binary mode') parser.add_option('-d', '--debug', dest='debug', action='store_true', help='run in debug mode') parser.add_option('-e', '--encrypt', dest='cipher', metavar='CIPHER', help='decrypt and encrypt with CIPHER (default: none)') parser.add_option('-g', '--goto', dest='goto', metavar='NUM', type='int', help='jump to line NUM of the first argument') parser.add_option('-m', '--mode', dest='mode', metavar='MODE', help='open arguments in MODE') (opts, args) = parser.parse_args(argv) # if debugging, disable error handling to produce backtraces if opts.debug: mode.DEBUG = True # if -b but no -m, then use -m hex if opts.binary and not opts.mode: opts.mode = 'hex' # we will support using +19 as the first argument to indicate opening the # first file on line 19 (same as -g 19 or --goto 19) if goto_line: opts.goto = goto_line # figure out what kind of file open function to use if opts.cipher not in ciphers: sys.stderr.write('invalid cipher: %r' % opts.cipher) sys.exit(2) f = ciphers[opts.cipher] # open each path using our callback to get a buffer, open that buffer, etc. buffers = [] names = set() paths = set() for path in args: path = os.path.abspath(os.path.realpath(util.expand_tilde(path))) if path in paths: continue name = os.path.basename(path) if name in names: i = 1 auxname = '%s/%d' % (name, i) while auxname in names: i += 1 auxname = '%s/%d' % (name, i) name = auxname try: b = f(path, name, opts.binary) b.open() except buffer.BinaryDataException, e: if not opts.mode: opts.mode = 'hex' b = f(path, name, True) b.open() buffers.append(b) paths.add(path) names.add(name) # save terminal state so we can restore it when the program exits attr = termios.tcgetattr(sys.stdin) keyinput.disable_control_chars() # ok, now run our app try: curses.wrapper(run_app, buffers, opts.goto, opts.mode) err = 0 except: traceback.print_exc() err = 1 # restore terminal state termios.tcsetattr(sys.stdin, termios.TCSANOW, attr) ispell.free() if not err: os.system('clear') sys.exit(err)