Mercurial > python-cmd2
annotate cmd2.py @ 163:61a57c44cd93
ugh - parsing stripping command causes real trouble
author | catherine@dellzilla |
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date | Wed, 03 Dec 2008 17:21:08 -0500 |
parents | c50615cf814f |
children | 5209d230f96b |
rev | line source |
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1 """Variant on standard library's cmd with extra features. |
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2 |
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3 To use, simply import cmd2.Cmd instead of cmd.Cmd; use precisely as though you |
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4 were using the standard library's cmd, while enjoying the extra features. |
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5 |
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6 Searchable command history (commands: "hi", "li", "run") |
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7 Load commands from file, save to file, edit commands in file |
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8 Multi-line commands |
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9 Case-insensitive commands |
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10 Special-character shortcut commands (beyond cmd's "@" and "!") |
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11 Settable environment parameters |
13 | 12 Parsing commands with `optparse` options (flags) |
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13 Redirection to file with >, >>; input from file with < |
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14 Easy transcript-based testing of applications (see example/example.py) |
13 | 15 |
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16 Note that redirection with > and | will only work if `self.stdout.write()` |
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17 is used in place of `print`. The standard library's `cmd` module is |
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18 written to use `self.stdout.write()`, |
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19 |
14 | 20 - Catherine Devlin, Jan 03 2008 - catherinedevlin.blogspot.com |
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21 |
126 | 22 mercurial repository at http://www.assembla.com/wiki/show/python-cmd2 |
14 | 23 CHANGES: |
24 As of 0.3.0, options should be specified as `optparse` options. See README.txt. | |
25 flagReader.py options are still supported for backward compatibility | |
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26 """ |
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27 import cmd, re, os, sys, optparse, subprocess, tempfile, pyparsing, doctest, unittest, string |
10 | 28 from optparse import make_option |
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29 __version__ = '0.4.4' |
10 | 30 |
11 | 31 class OptionParser(optparse.OptionParser): |
32 def exit(self, status=0, msg=None): | |
38 | 33 self.values._exit = True |
11 | 34 if msg: |
15 | 35 print msg |
11 | 36 |
37 def error(self, msg): | |
38 """error(msg : string) | |
39 | |
40 Print a usage message incorporating 'msg' to stderr and exit. | |
41 If you override this in a subclass, it should not return -- it | |
42 should either exit or raise an exception. | |
43 """ | |
15 | 44 raise |
11 | 45 |
10 | 46 def options(option_list): |
47 def option_setup(func): | |
11 | 48 optionParser = OptionParser() |
10 | 49 for opt in option_list: |
50 optionParser.add_option(opt) | |
12 | 51 optionParser.set_usage("%s [options] arg" % func.__name__.strip('do_')) |
10 | 52 def newFunc(instance, arg): |
53 try: | |
157 | 54 opts, newArgs = optionParser.parse_args(arg.split()) |
162
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55 newArgs = (newArgs and arg[arg.find(newArgs[0]):]) or '' |
20 | 56 except (optparse.OptionValueError, optparse.BadOptionError, |
57 optparse.OptionError, optparse.AmbiguousOptionError, | |
58 optparse.OptionConflictError), e: | |
10 | 59 print e |
60 optionParser.print_help() | |
38 | 61 return |
62 if hasattr(opts, '_exit'): | |
63 return None | |
159 | 64 arg = arg.parser('%s %s' % (arg.parsed.command, newArgs)) |
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65 result = func(instance, arg, opts) |
159 | 66 return result |
10 | 67 newFunc.__doc__ = '%s\n%s' % (func.__doc__, optionParser.format_help()) |
68 return newFunc | |
69 return option_setup | |
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70 |
27 | 71 class PasteBufferError(EnvironmentError): |
72 if sys.platform[:3] == 'win': | |
73 errmsg = """Redirecting to or from paste buffer requires pywin32 | |
74 to be installed on operating system. | |
75 Download from http://sourceforge.net/projects/pywin32/""" | |
76 else: | |
77 errmsg = """Redirecting to or from paste buffer requires xclip | |
78 to be installed on operating system. | |
79 On Debian/Ubuntu, 'sudo apt-get install xclip' will install it.""" | |
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80 def __init__(self): |
27 | 81 Exception.__init__(self, self.errmsg) |
82 | |
29
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83 '''check here if functions exist; otherwise, stub out''' |
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84 pastebufferr = """Redirecting to or from paste buffer requires %s |
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85 to be installed on operating system. |
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86 %s""" |
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87 if subprocess.mswindows: |
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88 try: |
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89 import win32clipboard |
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90 def getPasteBuffer(): |
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91 win32clipboard.OpenClipboard(0) |
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92 try: |
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93 result = win32clipboard.GetClipboardData() |
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94 except TypeError: |
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95 result = '' #non-text |
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96 win32clipboard.CloseClipboard() |
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97 return result |
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98 def writeToPasteBuffer(txt): |
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99 win32clipboard.OpenClipboard(0) |
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100 win32clipboard.EmptyClipboard() |
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101 win32clipboard.SetClipboardText(txt) |
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102 win32clipboard.CloseClipboard() |
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103 except ImportError: |
106 | 104 def getPasteBuffer(*args): |
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105 raise OSError, pastebufferr % ('pywin32', 'Download from http://sourceforge.net/projects/pywin32/') |
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106 setPasteBuffer = getPasteBuffer |
27 | 107 else: |
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108 can_clip = False |
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109 try: |
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110 subprocess.check_call('xclip -o -sel clip', shell=True, stdout=subprocess.PIPE, stdin=subprocess.PIPE) |
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111 can_clip = True |
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112 except AttributeError: # check_call not defined, Python < 2.5 |
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113 teststring = 'Testing for presence of xclip.' |
31 | 114 xclipproc = subprocess.Popen('xclip -sel clip', shell=True, stdout=subprocess.PIPE, stdin=subprocess.PIPE) |
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115 xclipproc.stdin.write(teststring) |
31 | 116 xclipproc.stdin.close() |
117 xclipproc = subprocess.Popen('xclip -o -sel clip', shell=True, stdout=subprocess.PIPE, stdin=subprocess.PIPE) | |
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118 if xclipproc.stdout.read() == teststring: |
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119 can_clip = True |
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120 except (subprocess.CalledProcessError, OSError, IOError): |
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121 pass |
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122 if can_clip: |
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123 def getPasteBuffer(): |
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124 xclipproc = subprocess.Popen('xclip -o -sel clip', shell=True, stdout=subprocess.PIPE, stdin=subprocess.PIPE) |
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125 return xclipproc.stdout.read() |
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126 def writeToPasteBuffer(txt): |
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127 xclipproc = subprocess.Popen('xclip -sel clip', shell=True, stdout=subprocess.PIPE, stdin=subprocess.PIPE) |
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128 xclipproc.stdin.write(txt) |
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129 xclipproc.stdin.close() |
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130 # but we want it in both the "primary" and "mouse" clipboards |
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131 xclipproc = subprocess.Popen('xclip', shell=True, stdout=subprocess.PIPE, stdin=subprocess.PIPE) |
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132 xclipproc.stdin.write(txt) |
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133 xclipproc.stdin.close() |
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134 else: |
106 | 135 def getPasteBuffer(*args): |
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136 raise OSError, pastebufferr % ('xclip', 'On Debian/Ubuntu, install with "sudo apt-get install xclip"') |
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137 setPasteBuffer = getPasteBuffer |
106 | 138 writeToPasteBuffer = getPasteBuffer |
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139 |
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140 pyparsing.ParserElement.setDefaultWhitespaceChars(' \t') |
159 | 141 ''' |
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142 def parseSearchResults(pattern, s): |
81 | 143 generator = pattern.scanString(s) |
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144 try: |
81 | 145 result, start, stop = generator.next() |
146 result['before'], result['after'] = s[:start], s[stop:] | |
82 | 147 result['upToIncluding'] = s[:stop] |
81 | 148 except StopIteration: |
149 result = pyparsing.ParseResults('') | |
150 result['before'] = s | |
151 return result | |
159 | 152 ''' |
154 | 153 |
154 def replaceInput(source): | |
155 if source: | |
156 newinput = open(source[0], 'r').read() | |
157 else: | |
158 newinput = getPasteBuffer() | |
159 | |
160 try: | |
161 if statement.inputFrom: | |
162 newinput = open(statement.inputFrom, 'r').read() | |
163 else: | |
164 newinput = getPasteBuffer() | |
165 except (OSError,), e: | |
166 print e | |
167 return 0 | |
168 start, end = self.redirectInPattern.scanString(statement.fullStatement).next()[1:] | |
169 return self.onecmd('%s%s%s' % (statement.fullStatement[:start], | |
170 newinput, statement.fullStatement[end:])) | |
171 | |
157 | 172 class ParsedString(str): |
173 pass | |
174 | |
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175 class Cmd(cmd.Cmd): |
103 | 176 echo = False |
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177 caseInsensitive = True |
157 | 178 continuationPrompt = '> ' |
179 legalChars = '!#$%.:?@_' # make sure your terminators are not in here! | |
137 | 180 shortcuts = {'?': 'help', '!': 'shell', '@': 'load' } |
106 | 181 excludeFromHistory = '''run r list l history hi ed edit li eof'''.split() |
182 noSpecialParse = 'set ed edit exit'.split() | |
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183 defaultExtension = 'txt' |
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184 defaultFileName = 'command.txt' |
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185 editor = os.environ.get('EDITOR') |
42 | 186 _STOP_AND_EXIT = 2 |
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187 if not editor: |
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188 if sys.platform[:3] == 'win': |
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189 editor = 'notepad' |
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190 else: |
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191 for editor in ['gedit', 'kate', 'vim', 'emacs', 'nano', 'pico']: |
47 | 192 if not os.system('which %s' % (editor)): |
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193 break |
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194 |
103 | 195 settable = ['prompt', 'continuationPrompt', 'defaultFileName', 'editor', 'caseInsensitive', 'echo'] |
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196 def do_cmdenvironment(self, args): |
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197 self.stdout.write(""" |
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198 Commands are %(casesensitive)scase-sensitive. |
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199 Commands may be terminated with: %(terminators)s |
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200 Settable parameters: %(settable)s |
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201 """ % |
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202 { 'casesensitive': ('not ' and self.caseInsensitive) or '', |
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203 'terminators': self.terminatorPattern, |
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204 'settable': ' '.join(self.settable) |
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205 }) |
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206 |
10 | 207 def do_help(self, arg): |
208 cmd.Cmd.do_help(self, arg) | |
209 try: | |
210 fn = getattr(self, 'do_' + arg) | |
211 if fn and fn.optionParser: | |
212 fn.optionParser.print_help(file=self.stdout) | |
213 except AttributeError: | |
214 pass | |
215 | |
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216 def __init__(self, *args, **kwargs): |
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217 cmd.Cmd.__init__(self, *args, **kwargs) |
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218 self.history = History() |
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219 self._init_parser() |
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220 |
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221 def do_shortcuts(self, args): |
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222 """Lists single-key shortcuts available.""" |
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223 result = "\n".join('%s: %s' % (sc[0], sc[1]) for sc in self.shortcuts.items()) |
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224 self.stdout.write("Single-key shortcuts for other commands:\n%s\n" % (result)) |
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225 |
137 | 226 commentGrammars = pyparsing.Or([pyparsing.pythonStyleComment, pyparsing.cStyleComment]) |
153 | 227 commentGrammars.addParseAction(lambda x: '') |
136 | 228 commentInProgress = pyparsing.Literal('/*') + pyparsing.SkipTo(pyparsing.stringEnd) |
146 | 229 terminators = [';', '\n\n'] |
153 | 230 multilineCommands = [] |
152
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231 |
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232 def _init_parser(self): |
146 | 233 ''' |
234 >>> c = Cmd() | |
153 | 235 >>> c.multilineCommands = ['multiline'] |
236 >>> c.caseInsensitive = True | |
237 >>> c._init_parser() | |
158 | 238 >>> print c.parser.parseString('').dump() |
239 [] | |
240 >>> print c.parser.parseString('/* empty command */').dump() | |
241 [] | |
242 >>> print c.parser.parseString('plainword').dump() | |
243 ['plainword', ''] | |
244 - command: plainword | |
245 - statement: ['plainword', ''] | |
246 - command: plainword | |
157 | 247 >>> print c.parser.parseString('termbare;').dump() |
158 | 248 ['termbare', '', ';', ''] |
249 - command: termbare | |
250 - statement: ['termbare', '', ';'] | |
251 - command: termbare | |
252 - terminator: ; | |
253 - terminator: ; | |
157 | 254 >>> print c.parser.parseString('termbare; suffx').dump() |
158 | 255 ['termbare', '', ';', 'suffx'] |
256 - command: termbare | |
257 - statement: ['termbare', '', ';'] | |
258 - command: termbare | |
259 - terminator: ; | |
260 - suffix: suffx | |
261 - terminator: ; | |
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262 >>> print c.parser.parseString('barecommand').dump() |
153 | 263 ['barecommand', ''] |
264 - command: barecommand | |
265 - statement: ['barecommand', ''] | |
266 - command: barecommand | |
267 >>> print c.parser.parseString('COMmand with args').dump() | |
157 | 268 ['command', 'with args'] |
269 - args: with args | |
153 | 270 - command: command |
157 | 271 - statement: ['command', 'with args'] |
272 - args: with args | |
153 | 273 - command: command |
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274 >>> print c.parser.parseString('command with args and terminator; and suffix').dump() |
158 | 275 ['command', 'with args and terminator', ';', 'and suffix'] |
153 | 276 - args: with args and terminator |
277 - command: command | |
278 - statement: ['command', 'with args and terminator', ';'] | |
279 - args: with args and terminator | |
280 - command: command | |
281 - terminator: ; | |
158 | 282 - suffix: and suffix |
283 - terminator: ; | |
153 | 284 >>> print c.parser.parseString('simple | piped').dump() |
157 | 285 ['simple', '', '|', ' piped'] |
153 | 286 - command: simple |
157 | 287 - pipeTo: piped |
153 | 288 - statement: ['simple', ''] |
289 - command: simple | |
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290 >>> print c.parser.parseString('command with args, terminator;sufx | piped').dump() |
157 | 291 ['command', 'with args, terminator', ';', 'sufx', '|', ' piped'] |
153 | 292 - args: with args, terminator |
293 - command: command | |
157 | 294 - pipeTo: piped |
153 | 295 - statement: ['command', 'with args, terminator', ';'] |
296 - args: with args, terminator | |
297 - command: command | |
298 - terminator: ; | |
299 - suffix: sufx | |
155 | 300 - terminator: ; |
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301 >>> print c.parser.parseString('output into > afile.txt').dump() |
157 | 302 ['output', 'into', '>', 'afile.txt'] |
153 | 303 - args: into |
304 - command: output | |
305 - output: > | |
155 | 306 - outputTo: afile.txt |
157 | 307 - statement: ['output', 'into'] |
308 - args: into | |
309 - command: output | |
310 >>> print c.parser.parseString('output into;sufx | pipethrume plz > afile.txt').dump() | |
311 ['output', 'into', ';', 'sufx', '|', ' pipethrume plz', '>', 'afile.txt'] | |
312 - args: into | |
313 - command: output | |
314 - output: > | |
315 - outputTo: afile.txt | |
316 - pipeTo: pipethrume plz | |
153 | 317 - statement: ['output', 'into', ';'] |
318 - args: into | |
319 - command: output | |
320 - terminator: ; | |
321 - suffix: sufx | |
322 - terminator: ; | |
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323 >>> print c.parser.parseString('output to paste buffer >> ').dump() |
157 | 324 ['output', 'to paste buffer', '>>', ''] |
325 - args: to paste buffer | |
153 | 326 - command: output |
327 - output: >> | |
157 | 328 - statement: ['output', 'to paste buffer'] |
329 - args: to paste buffer | |
153 | 330 - command: output |
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331 >>> print c.parser.parseString('ignore the /* commented | > */ stuff;').dump() |
153 | 332 ['ignore', 'the /* commented | > */ stuff', ';', ''] |
333 - args: the /* commented | > */ stuff | |
334 - command: ignore | |
335 - statement: ['ignore', 'the /* commented | > */ stuff', ';'] | |
336 - args: the /* commented | > */ stuff | |
337 - command: ignore | |
338 - terminator: ; | |
339 - terminator: ; | |
340 >>> print c.parser.parseString('has > inside;').dump() | |
341 ['has', '> inside', ';', ''] | |
342 - args: > inside | |
343 - command: has | |
344 - statement: ['has', '> inside', ';'] | |
345 - args: > inside | |
346 - command: has | |
347 - terminator: ; | |
348 - terminator: ; | |
349 >>> print c.parser.parseString('multiline has > inside an unfinished command').dump() | |
350 ['multiline', 'has > inside an unfinished command'] | |
351 - multilineCommand: multiline | |
352 >>> print c.parser.parseString('multiline has > inside;').dump() | |
353 ['multiline', 'has > inside', ';', ''] | |
354 - args: has > inside | |
355 - multilineCommand: multiline | |
356 - statement: ['multiline', 'has > inside', ';'] | |
357 - args: has > inside | |
358 - multilineCommand: multiline | |
359 - terminator: ; | |
360 - terminator: ; | |
361 >>> print c.parser.parseString('multiline command /* with comment in progress;').dump() | |
362 ['multiline', 'command /* with comment in progress;'] | |
363 - multilineCommand: multiline | |
364 >>> print c.parser.parseString('multiline command /* with comment complete */ is done;').dump() | |
365 ['multiline', 'command /* with comment complete */ is done', ';', ''] | |
366 - args: command /* with comment complete */ is done | |
367 - multilineCommand: multiline | |
368 - statement: ['multiline', 'command /* with comment complete */ is done', ';'] | |
369 - args: command /* with comment complete */ is done | |
370 - multilineCommand: multiline | |
371 - terminator: ; | |
158 | 372 - terminator: ; |
153 | 373 ''' |
146 | 374 outputParser = pyparsing.oneOf(['>>','>'])('output') |
375 terminatorParser = pyparsing.oneOf(self.terminators)('terminator') | |
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376 stringEnd = pyparsing.stringEnd ^ '\nEOF' |
153 | 377 multilineCommand = pyparsing.Or([pyparsing.Keyword(c, caseless=self.caseInsensitive) for c in self.multilineCommands])('multilineCommand') |
158 | 378 oneLineCommand = pyparsing.Word(self.legalChars + pyparsing.alphanums + pyparsing.alphas8bit)('command') |
160 | 379 pipe = pyparsing.Keyword('|', identChars='|') |
153 | 380 afterElements = \ |
160 | 381 pyparsing.Optional(pipe + pyparsing.SkipTo(outputParser ^ stringEnd)('pipeTo')) + \ |
155 | 382 pyparsing.Optional(outputParser + pyparsing.SkipTo(stringEnd).setParseAction(lambda x: x[0].strip())('outputTo')) |
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383 if self.caseInsensitive: |
153 | 384 multilineCommand.setParseAction(lambda x: x[0].lower()) |
385 oneLineCommand.setParseAction(lambda x: x[0].lower()) | |
386 self.parser = ( | |
158 | 387 pyparsing.stringEnd |
388 ^ | |
157 | 389 (((multilineCommand ^ oneLineCommand) + pyparsing.SkipTo(terminatorParser).setParseAction(lambda x: x[0].strip())('args') + terminatorParser)('statement') + |
160 | 390 pyparsing.SkipTo(outputParser ^ pipe ^ stringEnd).setParseAction(lambda x: x[0].strip())('suffix') + afterElements) |
153 | 391 ^ |
392 multilineCommand + pyparsing.SkipTo(pyparsing.stringEnd) | |
393 ^ | |
160 | 394 ((oneLineCommand + pyparsing.SkipTo(terminatorParser ^ stringEnd ^ pipe ^ outputParser).setParseAction(lambda x:x[0].strip())('args'))('statement') + |
157 | 395 pyparsing.Optional(terminatorParser) + afterElements) |
153 | 396 ) |
148 | 397 self.commentGrammars.ignore(pyparsing.sglQuotedString).ignore(pyparsing.dblQuotedString).setParseAction(lambda x: '') |
398 self.commentInProgress.ignore(pyparsing.sglQuotedString).ignore(pyparsing.dblQuotedString).ignore(pyparsing.cStyleComment) | |
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399 self.parser.ignore(pyparsing.sglQuotedString).ignore(pyparsing.dblQuotedString).ignore(self.commentGrammars).ignore(self.commentInProgress) |
154 | 400 |
401 inputMark = pyparsing.Literal('<') | |
402 inputMark.setParseAction(lambda x: '') | |
157 | 403 inputFrom = pyparsing.Word(self.legalChars)('inputFrom') |
154 | 404 inputFrom.setParseAction(lambda x: (x and open(x[0]).read()) or getPasteBuffer()) |
405 self.inputParser = inputMark + pyparsing.Optional(inputFrom) | |
406 self.inputParser.ignore(pyparsing.sglQuotedString).ignore(pyparsing.dblQuotedString).ignore(self.commentGrammars).ignore(self.commentInProgress) | |
153 | 407 |
157 | 408 def parsed(self, raw, useTerminatorFrom=None): |
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409 if isinstance(raw, ParsedString): |
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410 if useTerminatorFrom: |
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411 raw['terminator'] = useTerminatorFrom.parsed.terminator |
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412 raw['suffix'] = useTerminatorFrom.parsed.suffix |
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413 return raw |
161 | 414 s = self.inputParser.transformString(raw.strip()) |
154 | 415 for (shortcut, expansion) in self.shortcuts.items(): |
416 if s.startswith(shortcut): | |
417 s = s.replace(shortcut, expansion + ' ', 1) | |
418 break | |
153 | 419 result = self.parser.parseString(s) |
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420 if useTerminatorFrom: |
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421 return self.parsed('%s %s%s%s' % (result.command, result.args, useTerminatorFrom.parsed.terminator, useTerminatorFrom.parsed.suffix)) |
153 | 422 result['command'] = result.multilineCommand or result.command |
154 | 423 result['raw'] = raw |
157 | 424 result['clean'] = self.commentGrammars.transformString(result.args) |
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425 result['expanded'] = s |
157 | 426 p = ParsedString(result.args) |
427 p.parsed = result | |
159 | 428 p.parser = self.parsed |
157 | 429 return p |
430 | |
44 | 431 def onecmd(self, line, assumeComplete=False): |
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432 """Interpret the argument as though it had been typed in response |
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433 to the prompt. |
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434 |
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435 This may be overridden, but should not normally need to be; |
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436 see the precmd() and postcmd() methods for useful execution hooks. |
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437 The return value is a flag indicating whether interpretation of |
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438 commands by the interpreter should stop. |
157 | 439 |
440 This (`cmd2`) version of `onecmd` already override's `cmd`'s `onecmd`. | |
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441 |
3 | 442 """ |
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443 line = line.strip() |
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444 if not line: |
157 | 445 return self.emptyline() |
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446 if not pyparsing.Or(self.commentGrammars).setParseAction(lambda x: '').transformString(line): |
157 | 447 return 0 |
154 | 448 try: |
449 statement = self.parsed(line) | |
156 | 450 if assumeComplete: |
157 | 451 if statement.parsed.multilineCommand and not statement.parsed.terminator: |
452 statement.parsed.terminator = self.terminators[0] | |
156 | 453 else: |
157 | 454 while statement.parsed.multilineCommand and not statement.parsed.terminator: |
455 statement = self.parsed('%s\n%s' % (statement.parsed.raw, | |
156 | 456 self.pseudo_raw_input(self.continuationPrompt))) |
154 | 457 except Exception, e: |
458 print e | |
459 return 0 | |
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460 |
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461 statekeeper = None |
25 | 462 stop = 0 |
154 | 463 |
157 | 464 if statement.parsed.pipeTo: |
465 redirect = subprocess.Popen(statement.parsed.pipeTo, shell=True, stdout=subprocess.PIPE, stdin=subprocess.PIPE) | |
51 | 466 statekeeper = Statekeeper(self, ('stdout',)) |
47 | 467 self.stdout = redirect.stdin |
157 | 468 elif statement.parsed.output: |
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469 statekeeper = Statekeeper(self, ('stdout',)) |
157 | 470 if statement.parsed.outputTo: |
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471 mode = 'w' |
157 | 472 if statement.parsed.output == '>>': |
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473 mode = 'a' |
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474 try: |
157 | 475 self.stdout = open(statement.parsed.outputTo, mode) |
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476 except OSError, e: |
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477 print e |
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478 return 0 |
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479 else: |
51 | 480 statekeeper = Statekeeper(self, ('stdout',)) |
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481 self.stdout = tempfile.TemporaryFile() |
157 | 482 if statement.parsed.output == '>>': |
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483 self.stdout.write(getPasteBuffer()) |
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484 try: |
157 | 485 # "heart" of the command, replace's cmd's onecmd() |
486 self.lastcmd = statement.parsed.expanded | |
487 try: | |
488 func = getattr(self, 'do_' + statement.parsed.command) | |
489 except AttributeError: | |
490 return self.default(statement) | |
491 stop = func(statement) | |
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492 except Exception, e: |
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493 print e |
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494 try: |
157 | 495 if statement.parsed.command not in self.excludeFromHistory: |
496 self.history.append(statement.parsed.raw) | |
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497 finally: |
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498 if statekeeper: |
157 | 499 if statement.parsed.output and not statement.parsed.outputTo: |
27 | 500 self.stdout.seek(0) |
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501 try: |
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502 writeToPasteBuffer(self.stdout.read()) |
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503 except Exception, e: |
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504 print str(e) |
157 | 505 elif statement.parsed.pipeTo: |
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506 for result in redirect.communicate(): |
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507 statekeeper.stdout.write(result or '') |
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508 self.stdout.close() |
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509 statekeeper.restore() |
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510 |
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511 return stop |
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512 |
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513 def pseudo_raw_input(self, prompt): |
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514 """copied from cmd's cmdloop; like raw_input, but accounts for changed stdin, stdout""" |
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parents:
diff
changeset
|
515 |
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parents:
diff
changeset
|
516 if self.use_rawinput: |
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parents:
diff
changeset
|
517 try: |
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parents:
diff
changeset
|
518 line = raw_input(prompt) |
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parents:
diff
changeset
|
519 except EOFError: |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
520 line = 'EOF' |
febfdc79550b
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parents:
diff
changeset
|
521 else: |
febfdc79550b
moved repository to Assembla
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parents:
diff
changeset
|
522 self.stdout.write(prompt) |
febfdc79550b
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parents:
diff
changeset
|
523 self.stdout.flush() |
febfdc79550b
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parents:
diff
changeset
|
524 line = self.stdin.readline() |
febfdc79550b
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parents:
diff
changeset
|
525 if not len(line): |
febfdc79550b
moved repository to Assembla
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parents:
diff
changeset
|
526 line = 'EOF' |
febfdc79550b
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catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
527 else: |
febfdc79550b
moved repository to Assembla
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parents:
diff
changeset
|
528 if line[-1] == '\n': # this was always true in Cmd |
febfdc79550b
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parents:
diff
changeset
|
529 line = line[:-1] |
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catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
530 return line |
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catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
531 |
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catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
532 def cmdloop(self, intro=None): |
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moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
533 """Repeatedly issue a prompt, accept input, parse an initial prefix |
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parents:
diff
changeset
|
534 off the received input, and dispatch to action methods, passing them |
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moved repository to Assembla
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parents:
diff
changeset
|
535 the remainder of the line as argument. |
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catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
536 """ |
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moved repository to Assembla
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parents:
diff
changeset
|
537 |
febfdc79550b
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parents:
diff
changeset
|
538 # An almost perfect copy from Cmd; however, the pseudo_raw_input portion |
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moved repository to Assembla
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parents:
diff
changeset
|
539 # has been split out so that it can be called separately |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
540 |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
541 self.preloop() |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
542 if self.use_rawinput and self.completekey: |
febfdc79550b
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catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
543 try: |
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parents:
diff
changeset
|
544 import readline |
febfdc79550b
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parents:
diff
changeset
|
545 self.old_completer = readline.get_completer() |
febfdc79550b
moved repository to Assembla
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parents:
diff
changeset
|
546 readline.set_completer(self.complete) |
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moved repository to Assembla
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parents:
diff
changeset
|
547 readline.parse_and_bind(self.completekey+": complete") |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
548 except ImportError: |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
549 pass |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
550 try: |
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moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
551 if intro is not None: |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
552 self.intro = intro |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
553 if self.intro: |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
554 self.stdout.write(str(self.intro)+"\n") |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
555 stop = None |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
556 while not stop: |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
557 if self.cmdqueue: |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
558 line = self.cmdqueue.pop(0) |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
559 else: |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
560 line = self.pseudo_raw_input(self.prompt) |
103 | 561 if (self.echo) and (isinstance(self.stdin, file)): |
562 self.stdout.write(line + '\n') | |
0
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
563 line = self.precmd(line) |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
564 stop = self.onecmd(line) |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
565 stop = self.postcmd(stop, line) |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
566 self.postloop() |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
567 finally: |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
568 if self.use_rawinput and self.completekey: |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
569 try: |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
570 import readline |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
571 readline.set_completer(self.old_completer) |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
572 except ImportError: |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
573 pass |
43 | 574 return stop |
0
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
575 |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
576 def do_EOF(self, arg): |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
577 return True |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
578 do_eof = do_EOF |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
579 |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
580 def showParam(self, param): |
133
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parents:
126
diff
changeset
|
581 param = param.strip().lower() |
0
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
582 if param in self.settable: |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
583 val = getattr(self, param) |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
584 self.stdout.write('%s: %s\n' % (param, str(getattr(self, param)))) |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
585 |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
586 def do_quit(self, arg): |
43 | 587 return self._STOP_AND_EXIT |
0
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
588 do_exit = do_quit |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
589 do_q = do_quit |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
590 |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
591 def do_show(self, arg): |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
592 'Shows value of a parameter' |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
593 if arg.strip(): |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
594 self.showParam(arg) |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
595 else: |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
596 for param in self.settable: |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
597 self.showParam(param) |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
598 |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
599 def do_set(self, arg): |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
600 'Sets a parameter' |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
601 try: |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
602 paramName, val = arg.split(None, 1) |
133
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just beginning to make comments work
catherine@Elli.myhome.westell.com
parents:
126
diff
changeset
|
603 paramName = paramName.strip().lower() |
0
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
604 if paramName not in self.settable: |
106 | 605 raise NotSettableError |
0
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
606 currentVal = getattr(self, paramName) |
106 | 607 if (val[0] == val[-1]) and val[0] in ("'", '"'): |
608 val = val[1:-1] | |
609 else: | |
163
61a57c44cd93
ugh - parsing stripping command causes real trouble
catherine@dellzilla
parents:
162
diff
changeset
|
610 val = cast(currentVal, val) |
0
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
611 setattr(self, paramName, val) |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
612 self.stdout.write('%s - was: %s\nnow: %s\n' % (paramName, currentVal, val)) |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
613 except (ValueError, AttributeError, NotSettableError), e: |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
614 self.do_show(arg) |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
615 |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
616 def do_shell(self, arg): |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
617 'execute a command as if at the OS prompt.' |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
618 os.system(arg) |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
619 |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
620 def do_history(self, arg): |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
621 """history [arg]: lists past commands issued |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
622 |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
623 no arg -> list all |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
624 arg is integer -> list one history item, by index |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
625 arg is string -> string search |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
626 arg is /enclosed in forward-slashes/ -> regular expression search |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
627 """ |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
628 if arg: |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
629 history = self.history.get(arg) |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
630 else: |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
631 history = self.history |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
632 for hi in history: |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
633 self.stdout.write(hi.pr()) |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
634 def last_matching(self, arg): |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
635 try: |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
636 if arg: |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
637 return self.history.get(arg)[-1] |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
638 else: |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
639 return self.history[-1] |
133
31674148b13c
just beginning to make comments work
catherine@Elli.myhome.westell.com
parents:
126
diff
changeset
|
640 except IndexError: |
0
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
641 return None |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
642 def do_list(self, arg): |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
643 """list [arg]: lists last command issued |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
644 |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
645 no arg -> list absolute last |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
646 arg is integer -> list one history item, by index |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
647 - arg, arg - (integer) -> list up to or after #arg |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
648 arg is string -> list last command matching string search |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
649 arg is /enclosed in forward-slashes/ -> regular expression search |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
650 """ |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
651 try: |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
652 self.stdout.write(self.last_matching(arg).pr()) |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
653 except: |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
654 pass |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
655 do_hi = do_history |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
656 do_l = do_list |
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moved repository to Assembla
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parents:
diff
changeset
|
657 do_li = do_list |
febfdc79550b
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parents:
diff
changeset
|
658 |
febfdc79550b
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parents:
diff
changeset
|
659 def do_ed(self, arg): |
febfdc79550b
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parents:
diff
changeset
|
660 """ed: edit most recent command in text editor |
febfdc79550b
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parents:
diff
changeset
|
661 ed [N]: edit numbered command from history |
febfdc79550b
moved repository to Assembla
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parents:
diff
changeset
|
662 ed [filename]: edit specified file name |
febfdc79550b
moved repository to Assembla
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parents:
diff
changeset
|
663 |
febfdc79550b
moved repository to Assembla
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parents:
diff
changeset
|
664 commands are run after editor is closed. |
febfdc79550b
moved repository to Assembla
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parents:
diff
changeset
|
665 "set edit (program-name)" or set EDITOR environment variable |
febfdc79550b
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parents:
diff
changeset
|
666 to control which editing program is used.""" |
febfdc79550b
moved repository to Assembla
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parents:
diff
changeset
|
667 if not self.editor: |
febfdc79550b
moved repository to Assembla
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parents:
diff
changeset
|
668 print "please use 'set editor' to specify your text editing program of choice." |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
669 return |
febfdc79550b
moved repository to Assembla
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parents:
diff
changeset
|
670 filename = self.defaultFileName |
133
31674148b13c
just beginning to make comments work
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parents:
126
diff
changeset
|
671 if arg: |
31674148b13c
just beginning to make comments work
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parents:
126
diff
changeset
|
672 try: |
31674148b13c
just beginning to make comments work
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parents:
126
diff
changeset
|
673 buffer = self.last_matching(int(arg)) |
31674148b13c
just beginning to make comments work
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parents:
126
diff
changeset
|
674 except ValueError: |
0
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
675 filename = arg |
133
31674148b13c
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parents:
126
diff
changeset
|
676 buffer = '' |
31674148b13c
just beginning to make comments work
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parents:
126
diff
changeset
|
677 else: |
31674148b13c
just beginning to make comments work
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parents:
126
diff
changeset
|
678 buffer = self.history[-1] |
0
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
679 |
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moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
680 if buffer: |
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moved repository to Assembla
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parents:
diff
changeset
|
681 f = open(filename, 'w') |
febfdc79550b
moved repository to Assembla
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parents:
diff
changeset
|
682 f.write(buffer or '') |
febfdc79550b
moved repository to Assembla
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parents:
diff
changeset
|
683 f.close() |
febfdc79550b
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catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
684 |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
685 os.system('%s %s' % (self.editor, filename)) |
48 | 686 self.do__load(filename) |
0
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
687 do_edit = do_ed |
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catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
688 |
91 | 689 saveparser = (pyparsing.Optional(pyparsing.Word(pyparsing.nums)^'*')("idx") + |
157 | 690 pyparsing.Optional(pyparsing.Word(legalChars + '/\\'))("fname") + |
91 | 691 pyparsing.stringEnd) |
692 def do_save(self, arg): | |
693 """`save [N] [filename.ext]` | |
694 Saves command from history to file. | |
695 N => Number of command (from history), or `*`; | |
696 most recent command if omitted""" | |
697 | |
698 try: | |
699 args = self.saveparser.parseString(arg) | |
700 except pyparsing.ParseException: | |
701 print self.do_save.__doc__ | |
702 return | |
703 fname = args.fname or self.defaultFileName | |
704 if args.idx == '*': | |
705 saveme = '\n\n'.join(self.history[:]) | |
706 elif args.idx: | |
707 saveme = self.history[int(args.idx)-1] | |
708 else: | |
709 saveme = self.history[-1] | |
0
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
710 try: |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
711 f = open(fname, 'w') |
91 | 712 f.write(saveme) |
0
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
713 f.close() |
91 | 714 print 'Saved to %s' % (fname) |
0
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
715 except Exception, e: |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
716 print 'Error saving %s: %s' % (fname, str(e)) |
febfdc79550b
moved repository to Assembla
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parents:
diff
changeset
|
717 |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
718 def do_load(self, fname=None): |
febfdc79550b
moved repository to Assembla
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parents:
diff
changeset
|
719 """Runs command(s) from a file.""" |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
720 if fname is None: |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
721 fname = self.defaultFileName |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
722 keepstate = Statekeeper(self, ('stdin','use_rawinput','prompt','continuationPrompt')) |
41 | 723 if isinstance(fname, file): |
724 self.stdin = fname | |
725 else: | |
0
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
726 try: |
41 | 727 self.stdin = open(fname, 'r') |
728 except IOError, e: | |
729 try: | |
730 self.stdin = open('%s.%s' % (fname, self.defaultExtension), 'r') | |
731 except IOError: | |
732 print 'Problem opening file %s: \n%s' % (fname, e) | |
733 keepstate.restore() | |
734 return | |
0
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
735 self.use_rawinput = False |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
736 self.prompt = self.continuationPrompt = '' |
42 | 737 stop = self.cmdloop() |
0
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
738 self.stdin.close() |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
739 keepstate.restore() |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
740 self.lastcmd = '' |
48 | 741 return (stop == self._STOP_AND_EXIT) and self._STOP_AND_EXIT |
742 do__load = do_load # avoid an unfortunate legacy use of do_load from sqlpython | |
43 | 743 |
0
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
744 def do_run(self, arg): |
febfdc79550b
moved repository to Assembla
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parents:
diff
changeset
|
745 """run [arg]: re-runs an earlier command |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
746 |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
747 no arg -> run most recent command |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
748 arg is integer -> run one history item, by index |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
749 arg is string -> run most recent command by string search |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
750 arg is /enclosed in forward-slashes/ -> run most recent by regex |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
751 """ |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
752 'run [N]: runs the SQL that was run N commands ago' |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
753 runme = self.last_matching(arg) |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
754 print runme |
febfdc79550b
moved repository to Assembla
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parents:
diff
changeset
|
755 if runme: |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
756 runme = self.precmd(runme) |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
757 stop = self.onecmd(runme) |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
758 stop = self.postcmd(stop, runme) |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
759 do_r = do_run |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
760 |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
761 def fileimport(self, statement, source): |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
762 try: |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
763 f = open(source) |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
764 except IOError: |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
765 self.stdout.write("Couldn't read from file %s\n" % source) |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
766 return '' |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
767 data = f.read() |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
768 f.close() |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
769 return data |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
770 |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
771 class HistoryItem(str): |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
772 def __init__(self, instr): |
121
fe432d010ecc
going to attempt 2.4 and 2.6 compatibility
catherine@dellzilla
parents:
119
diff
changeset
|
773 str.__init__(self) |
0
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
774 self.lowercase = self.lower() |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
775 self.idx = None |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
776 def pr(self): |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
777 return '-------------------------[%d]\n%s\n' % (self.idx, str(self)) |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
778 |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
779 class History(list): |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
780 rangeFrom = re.compile(r'^([\d])+\s*\-$') |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
781 def append(self, new): |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
782 new = HistoryItem(new) |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
783 list.append(self, new) |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
784 new.idx = len(self) |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
785 def extend(self, new): |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
786 for n in new: |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
787 self.append(n) |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
788 def get(self, getme): |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
789 try: |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
790 getme = int(getme) |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
791 if getme < 0: |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
792 return self[:(-1 * getme)] |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
793 else: |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
794 return [self[getme-1]] |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
795 except IndexError: |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
796 return [] |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
797 except (ValueError, TypeError): |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
798 getme = getme.strip() |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
799 mtch = self.rangeFrom.search(getme) |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
800 if mtch: |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
801 return self[(int(mtch.group(1))-1):] |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
802 if getme.startswith(r'/') and getme.endswith(r'/'): |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
803 finder = re.compile(getme[1:-1], re.DOTALL | re.MULTILINE | re.IGNORECASE) |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
804 def isin(hi): |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
805 return finder.search(hi) |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
806 else: |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
807 def isin(hi): |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
808 return (getme.lower() in hi.lowercase) |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
809 return [itm for itm in self if isin(itm)] |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
810 |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
811 class NotSettableError(Exception): |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
812 pass |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
813 |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
814 def cast(current, new): |
febfdc79550b
moved repository to Assembla
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parents:
diff
changeset
|
815 """Tries to force a new value into the same type as the current.""" |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
816 typ = type(current) |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
817 if typ == bool: |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
818 try: |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
819 return bool(int(new)) |
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820 except ValueError, TypeError: |
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821 pass |
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822 try: |
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823 new = new.lower() |
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824 except: |
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825 pass |
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826 if (new=='on') or (new[0] in ('y','t')): |
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827 return True |
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828 if (new=='off') or (new[0] in ('n','f')): |
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829 return False |
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830 else: |
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831 try: |
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832 return typ(new) |
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833 except: |
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834 pass |
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835 print "Problem setting parameter (now %s) to %s; incorrect type?" % (current, new) |
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836 return current |
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837 |
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838 class Statekeeper(object): |
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839 def __init__(self, obj, attribs): |
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840 self.obj = obj |
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841 self.attribs = attribs |
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842 self.save() |
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843 def save(self): |
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844 for attrib in self.attribs: |
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845 setattr(self, attrib, getattr(self.obj, attrib)) |
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846 def restore(self): |
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847 for attrib in self.attribs: |
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848 setattr(self.obj, attrib, getattr(self, attrib)) |
79
f583663c610f
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diff
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849 |
104 | 850 class Borg(object): |
851 '''All instances of any Borg subclass will share state. | |
852 from Python Cookbook, 2nd Ed., recipe 6.16''' | |
853 _shared_state = {} | |
854 def __new__(cls, *a, **k): | |
855 obj = object.__new__(cls, *a, **k) | |
856 obj.__dict__ = cls._shared_state | |
857 return obj | |
858 | |
859 class OutputTrap(Borg): | |
860 '''Instantiate an OutputTrap to divert/capture ALL stdout output. For use in unit testing. | |
861 Call `tearDown()` to return to normal output.''' | |
862 def __init__(self): | |
105 | 863 self.old_stdout = sys.stdout |
104 | 864 self.trap = tempfile.TemporaryFile() |
865 sys.stdout = self.trap | |
105 | 866 def read(self): |
104 | 867 self.trap.seek(0) |
868 result = self.trap.read() | |
105 | 869 self.trap.truncate(0) |
870 return result.strip('\x00') | |
104 | 871 def tearDown(self): |
872 sys.stdout = self.old_stdout | |
873 | |
874 class TranscriptReader(object): | |
875 def __init__(self, cmdapp, filename='test_cmd2.txt'): | |
876 self.cmdapp = cmdapp | |
877 try: | |
878 tfile = open(filename) | |
879 self.transcript = tfile.read() | |
880 tfile.close() | |
881 except IOError: | |
882 self.transcript = '' | |
883 self.bookmark = 0 | |
884 def refreshCommandFinder(self): | |
885 prompt = pyparsing.Suppress(pyparsing.lineStart + self.cmdapp.prompt) | |
886 continuationPrompt = pyparsing.Suppress(pyparsing.lineStart + self.cmdapp.continuationPrompt) | |
887 self.cmdtxtPattern = (prompt + pyparsing.restOfLine + pyparsing.ZeroOrMore( | |
119
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888 pyparsing.lineEnd + continuationPrompt + pyparsing.restOfLine))("command") |
104 | 889 def inputGenerator(self): |
890 while True: | |
891 self.refreshCommandFinder() | |
892 (thiscmd, startpos, endpos) = self.cmdtxtPattern.scanString(self.transcript[self.bookmark:], maxMatches=1).next() | |
893 lineNum = self.transcript.count('\n', 0, self.bookmark+startpos) + 2 | |
894 self.bookmark += endpos | |
895 yield (''.join(thiscmd.command), lineNum) | |
896 def nextExpected(self): | |
897 self.refreshCommandFinder() | |
898 try: | |
899 (thiscmd, startpos, endpos) = self.cmdtxtPattern.scanString(self.transcript[self.bookmark:], maxMatches=1).next() | |
900 result = self.transcript[self.bookmark:self.bookmark+startpos] | |
901 self.bookmark += startpos | |
902 return result | |
903 except StopIteration: | |
904 return self.transcript[self.bookmark:] | |
122 | 905 |
104 | 906 class Cmd2TestCase(unittest.TestCase): |
907 '''Subclass this, setting CmdApp and transcriptFileName, to make a unittest.TestCase class | |
109 | 908 that will execute the commands in transcriptFileName and expect the results shown. |
909 See example.py''' | |
104 | 910 # problem: this (raw) case gets called by unittest.main - we don't want it to be. hmm |
911 CmdApp = None | |
912 transcriptFileName = '' | |
913 def setUp(self): | |
914 if self.CmdApp: | |
105 | 915 self.outputTrap = OutputTrap() |
104 | 916 self.cmdapp = self.CmdApp() |
917 self.transcriptReader = TranscriptReader(self.cmdapp, self.transcriptFileName) | |
918 def testall(self): | |
919 if self.CmdApp: | |
920 for (cmdInput, lineNum) in self.transcriptReader.inputGenerator(): | |
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921 self.cmdapp.onecmd(cmdInput, assumeComplete=True) |
105 | 922 result = self.outputTrap.read() |
104 | 923 expected = self.transcriptReader.nextExpected() |
107
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924 self.assertEqual(self.stripByLine(result), self.stripByLine(expected), |
104 | 925 '\nFile %s, line %d\nCommand was:\n%s\nExpected:\n%s\nGot:\n%s\n' % |
926 (self.transcriptFileName, lineNum, cmdInput, expected, result)) | |
107
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diff
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927 def stripByLine(self, s): |
117
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diff
changeset
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928 bareprompt = self.cmdapp.continuationPrompt.strip() |
122 | 929 lines = [] |
930 for line in s.splitlines(): | |
931 line = line.rstrip() | |
932 if line.startswith(bareprompt): | |
933 line = line.replace(bareprompt, '', 1) | |
126 | 934 lines.append(line) |
117
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935 return '\n'.join(lines).strip() |
104 | 936 def tearDown(self): |
937 if self.CmdApp: | |
938 self.outputTrap.tearDown() | |
939 | |
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56
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940 if __name__ == '__main__': |
158 | 941 doctest.testmod(optionflags = doctest.NORMALIZE_WHITESPACE) |
942 #c = Cmd() |