Mercurial > python-cmd2
annotate cmd2.py @ 80:1e4ba836539e
fixed unit tests
author | catherine@Elli.myhome.westell.com |
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date | Fri, 04 Jul 2008 07:13:57 -0400 |
parents | f583663c610f |
children | a3b0ef23146f |
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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 < |
13 | 14 |
14 | 15 - Catherine Devlin, Jan 03 2008 - catherinedevlin.blogspot.com |
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16 |
14 | 17 CHANGES: |
18 As of 0.3.0, options should be specified as `optparse` options. See README.txt. | |
19 flagReader.py options are still supported for backward compatibility | |
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20 """ |
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21 import cmd, re, os, sys, optparse, subprocess, tempfile, pyparsing, doctest |
10 | 22 from optparse import make_option |
23 | |
11 | 24 class OptionParser(optparse.OptionParser): |
25 def exit(self, status=0, msg=None): | |
38 | 26 self.values._exit = True |
11 | 27 if msg: |
15 | 28 print msg |
11 | 29 |
30 def error(self, msg): | |
31 """error(msg : string) | |
32 | |
33 Print a usage message incorporating 'msg' to stderr and exit. | |
34 If you override this in a subclass, it should not return -- it | |
35 should either exit or raise an exception. | |
36 """ | |
15 | 37 raise |
11 | 38 |
10 | 39 def options(option_list): |
40 def option_setup(func): | |
11 | 41 optionParser = OptionParser() |
10 | 42 for opt in option_list: |
43 optionParser.add_option(opt) | |
12 | 44 optionParser.set_usage("%s [options] arg" % func.__name__.strip('do_')) |
10 | 45 def newFunc(instance, arg): |
46 try: | |
20 | 47 opts, arg = optionParser.parse_args(arg.split()) |
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48 arg = ' '.join(arg) |
20 | 49 except (optparse.OptionValueError, optparse.BadOptionError, |
50 optparse.OptionError, optparse.AmbiguousOptionError, | |
51 optparse.OptionConflictError), e: | |
10 | 52 print e |
53 optionParser.print_help() | |
38 | 54 return |
55 if hasattr(opts, '_exit'): | |
56 return None | |
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57 result = func(instance, arg, opts) |
10 | 58 return result |
59 newFunc.__doc__ = '%s\n%s' % (func.__doc__, optionParser.format_help()) | |
60 return newFunc | |
61 return option_setup | |
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62 |
27 | 63 class PasteBufferError(EnvironmentError): |
64 if sys.platform[:3] == 'win': | |
65 errmsg = """Redirecting to or from paste buffer requires pywin32 | |
66 to be installed on operating system. | |
67 Download from http://sourceforge.net/projects/pywin32/""" | |
68 else: | |
69 errmsg = """Redirecting to or from paste buffer requires xclip | |
70 to be installed on operating system. | |
71 On Debian/Ubuntu, 'sudo apt-get install xclip' will install it.""" | |
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72 def __init__(self): |
27 | 73 Exception.__init__(self, self.errmsg) |
74 | |
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75 '''check here if functions exist; otherwise, stub out''' |
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76 pastebufferr = """Redirecting to or from paste buffer requires %s |
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77 to be installed on operating system. |
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78 %s""" |
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79 if subprocess.mswindows: |
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80 try: |
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81 import win32clipboard |
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82 def getPasteBuffer(): |
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83 win32clipboard.OpenClipboard(0) |
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84 try: |
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85 result = win32clipboard.GetClipboardData() |
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86 except TypeError: |
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87 result = '' #non-text |
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88 win32clipboard.CloseClipboard() |
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89 return result |
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90 def writeToPasteBuffer(txt): |
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91 win32clipboard.OpenClipboard(0) |
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92 win32clipboard.EmptyClipboard() |
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93 win32clipboard.SetClipboardText(txt) |
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94 win32clipboard.CloseClipboard() |
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95 except ImportError: |
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96 def getPasteBuffer(): |
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97 raise OSError, pastebufferr % ('pywin32', 'Download from http://sourceforge.net/projects/pywin32/') |
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98 setPasteBuffer = getPasteBuffer |
27 | 99 else: |
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100 can_clip = False |
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101 try: |
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102 subprocess.check_call('xclip -o -sel clip', shell=True, stdout=subprocess.PIPE, stdin=subprocess.PIPE) |
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103 can_clip = True |
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104 except AttributeError: # check_call not defined, Python < 2.5 |
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105 teststring = 'Testing for presence of xclip.' |
31 | 106 xclipproc = subprocess.Popen('xclip -sel clip', shell=True, stdout=subprocess.PIPE, stdin=subprocess.PIPE) |
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107 xclipproc.stdin.write(teststring) |
31 | 108 xclipproc.stdin.close() |
109 xclipproc = subprocess.Popen('xclip -o -sel clip', shell=True, stdout=subprocess.PIPE, stdin=subprocess.PIPE) | |
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110 if xclipproc.stdout.read() == teststring: |
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111 can_clip = True |
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112 except (subprocess.CalledProcessError, OSError, IOError): |
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113 pass |
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114 if can_clip: |
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115 def getPasteBuffer(): |
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116 xclipproc = subprocess.Popen('xclip -o -sel clip', shell=True, stdout=subprocess.PIPE, stdin=subprocess.PIPE) |
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117 return xclipproc.stdout.read() |
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118 def writeToPasteBuffer(txt): |
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119 xclipproc = subprocess.Popen('xclip -sel clip', shell=True, stdout=subprocess.PIPE, stdin=subprocess.PIPE) |
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120 xclipproc.stdin.write(txt) |
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121 xclipproc.stdin.close() |
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122 else: |
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123 def getPasteBuffer(): |
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124 raise OSError, pastebufferr % ('xclip', 'On Debian/Ubuntu, install with "sudo apt-get install xclip"') |
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125 setPasteBuffer = getPasteBuffer |
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126 |
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127 pyparsing.ParserElement.setDefaultWhitespaceChars(' \t') |
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128 def parseSearchResults(pattern, s): |
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129 try: |
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130 return pattern.searchString(s)[0] |
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131 except IndexError: |
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132 return pyparsing.ParseResults('') |
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133 |
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134 class Cmd(cmd.Cmd): |
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135 caseInsensitive = True |
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136 multilineCommands = [] |
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137 continuationPrompt = '> ' |
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138 shortcuts = {'?': 'help', '!': 'shell', '@': 'load'} |
47 | 139 excludeFromHistory = '''run r list l history hi ed edit li eof'''.split() |
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140 defaultExtension = 'txt' |
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141 defaultFileName = 'command.txt' |
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142 editor = os.environ.get('EDITOR') |
42 | 143 _STOP_AND_EXIT = 2 |
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144 if not editor: |
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145 if sys.platform[:3] == 'win': |
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146 editor = 'notepad' |
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147 else: |
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148 for editor in ['gedit', 'kate', 'vim', 'emacs', 'nano', 'pico']: |
47 | 149 if not os.system('which %s' % (editor)): |
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150 break |
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151 |
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152 settable = ['prompt', 'continuationPrompt', 'defaultFileName', 'editor', 'caseInsensitive'] |
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153 terminators = ';\n' |
23 | 154 _TO_PASTE_BUFFER = 1 |
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155 def do_cmdenvironment(self, args): |
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156 self.stdout.write(""" |
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157 Commands are %(casesensitive)scase-sensitive. |
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158 Commands may be terminated with: %(terminators)s |
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159 Settable parameters: %(settable)s |
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160 """ % |
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161 { 'casesensitive': ('not ' and self.caseInsensitive) or '', |
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162 'terminators': ' '.join(self.terminators), |
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163 'settable': ' '.join(self.settable) |
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164 }) |
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165 |
10 | 166 def do_help(self, arg): |
167 cmd.Cmd.do_help(self, arg) | |
168 try: | |
169 fn = getattr(self, 'do_' + arg) | |
170 if fn and fn.optionParser: | |
171 fn.optionParser.print_help(file=self.stdout) | |
172 except AttributeError: | |
173 pass | |
174 | |
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175 def __init__(self, *args, **kwargs): |
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176 cmd.Cmd.__init__(self, *args, **kwargs) |
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177 self.history = History() |
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178 |
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179 def do_shortcuts(self, args): |
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180 """Lists single-key shortcuts available.""" |
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181 result = "\n".join('%s: %s' % (sc[0], sc[1]) for sc in self.shortcuts.items()) |
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182 self.stdout.write("Single-key shortcuts for other commands:\n%s\n" % (result)) |
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183 |
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184 terminators = (pyparsing.Literal(';') ^ pyparsing.Literal('\n\n')) \ |
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185 ('terminator') |
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186 argSeparatorPattern = pyparsing.Word(pyparsing.printables)('command') \ |
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187 + pyparsing.SkipTo(pyparsing.StringEnd())('args') |
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188 filenamePattern = pyparsing.Word(pyparsing.alphanums + '#$-_~{},.!') |
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189 integerPattern = pyparsing.Word(pyparsing.nums).setParseAction( lambda s,l,t: [ int(t[0]) ] ) |
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190 pipePattern = pyparsing.Literal('|')('pipe') + pyparsing.restOfLine('pipeTo') |
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191 redirectOutPattern = (pyparsing.Literal('>>') ^ '>')('output') \ |
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192 + pyparsing.Optional(filenamePattern)('outputTo') |
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193 redirectInPattern = pyparsing.Literal('<')('input') \ |
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194 + pyparsing.Optional(filenamePattern)('inputFrom') |
80 | 195 punctuationPattern = pipePattern ^ redirectInPattern ^ redirectOutPattern |
196 for p in (terminators, pipePattern, redirectInPattern, redirectOutPattern, punctuationPattern): | |
79
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197 p.ignore(pyparsing.sglQuotedString) |
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198 p.ignore(pyparsing.dblQuotedString) |
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199 |
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200 def parsed(self, s): |
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201 ''' |
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202 >>> c = Cmd() |
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203 >>> c.parsed('quotes "are > ignored" < inp.txt').asDict() |
80 | 204 {'args': '"are > ignored"', 'inputFrom': 'inp.txt', 'command': 'quotes', 'statement': 'quotes "are > ignored"', 'input': '<', 'fullStatement': 'quotes "are > ignored" < inp.txt'} |
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205 >>> c.parsed('very complex; < from.txt >> to.txt etc.').asDict() |
80 | 206 {'args': 'complex;', 'inputFrom': 'from.txt', 'command': 'very', 'statement': 'very complex;', 'input': '<', 'output': '>>', 'outputTo': 'to.txt', 'fullStatement': 'very complex; < from.txt >> to.txt etc.'} |
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207 >>> c.parsed('nothing to parse').asDict() |
80 | 208 {'args': 'to parse', 'command': 'nothing', 'statement': 'nothing to parse', 'fullStatement': 'nothing to parse'} |
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209 >>> c.parsed('send it to | sort | wc').asDict() |
80 | 210 {'args': 'it to', 'pipe': '|', 'pipeTo': ' sort | wc', 'command': 'send', 'statement': 'send it to', 'fullStatement': 'send it to | sort | wc'} |
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211 >>> r = c.parsed('got from < thisfile.txt plus blah blah') |
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212 >>> r.asDict() |
80 | 213 {'args': 'from', 'inputFrom': 'thisfile.txt', 'command': 'got', 'statement': 'got from', 'input': '<', 'fullStatement': 'got from < thisfile.txt plus blah blah'} |
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214 >>> c.parsed(r).asDict() |
80 | 215 {'args': 'from', 'inputFrom': 'thisfile.txt', 'command': 'got', 'statement': 'got from', 'input': '<', 'fullStatement': 'got from < thisfile.txt plus blah blah'} |
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216 ''' |
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217 if isinstance(s, pyparsing.ParseResults): |
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218 return s |
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219 result = (pyparsing.SkipTo(pyparsing.StringEnd()))('fullStatement').parseString(s) |
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220 result['statement'] = result.fullStatement |
45 | 221 try: |
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222 result += (pyparsing.SkipTo(self.punctuationPattern)('statement') \ |
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223 + self.punctuationPattern).parseString(s) |
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224 result += parseSearchResults(self.pipePattern, s) |
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225 result += parseSearchResults(self.redirectInPattern, s) |
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226 result += parseSearchResults(self.redirectOutPattern, s) |
45 | 227 except pyparsing.ParseException: |
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228 pass |
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229 finally: |
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230 try: |
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231 result += self.argSeparatorPattern.parseString(result.statement) |
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232 except pyparsing.ParseException: |
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233 return result |
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234 if self.caseInsensitive: |
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235 result['command'] = result.command.lower() |
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236 result['statement'] = '%s %s' % (result.command, result.args) |
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237 return result |
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238 |
3 | 239 def extractCommand(self, statement): |
240 try: | |
241 (command, args) = statement.split(None,1) | |
242 except ValueError: | |
243 (command, args) = statement, '' | |
244 if self.caseInsensitive: | |
245 command = command.lower() | |
246 return command, args | |
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247 |
44 | 248 def onecmd(self, line, assumeComplete=False): |
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249 """Interpret the argument as though it had been typed in response |
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250 to the prompt. |
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251 |
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252 This may be overridden, but should not normally need to be; |
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253 see the precmd() and postcmd() methods for useful execution hooks. |
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254 The return value is a flag indicating whether interpretation of |
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255 commands by the interpreter should stop. |
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256 |
3 | 257 """ |
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258 statement = self.parsed(line) |
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259 while (statement.command in self.multilineCommands) and not \ |
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260 (statement.terminator or assumeComplete): |
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261 statement = self.parsed('%s\n%s' % (statement.fullStatement, |
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262 self.pseudo_raw_input(self.continuationPrompt))) |
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263 |
0
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264 statekeeper = None |
25 | 265 stop = 0 |
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266 if statement.input: |
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267 if statement.inputFrom: |
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268 try: |
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269 newinput = open(statement.inputFrom, 'r').read() |
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270 except OSError, e: |
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271 print e |
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272 return 0 |
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273 else: |
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274 newinput = getPasteBuffer() |
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275 start, end = self.redirectInPattern.scanString(statement.fullStatement).next()[1:] |
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276 return self.onecmd('%s%s%s' % (statement.fullStatement[:start], |
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277 newinput, statement.fullStatement[end:])) |
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278 if statement.pipe and statement.pipeTo: |
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279 redirect = subprocess.Popen(statement.pipeTo, shell=True, stdout=subprocess.PIPE, stdin=subprocess.PIPE) |
51 | 280 statekeeper = Statekeeper(self, ('stdout',)) |
47 | 281 self.stdout = redirect.stdin |
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282 elif statement.output: |
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283 statekeeper = Statekeeper(self, ('stdout',)) |
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284 if statement.outputTo: |
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285 mode = 'w' |
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286 if statement.output == '>>': |
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287 mode = 'a' |
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288 try: |
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289 self.stdout = open(statement.outputTo, mode) |
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290 except OSError, e: |
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291 print e |
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292 return 0 |
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293 else: |
51 | 294 statekeeper = Statekeeper(self, ('stdout',)) |
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295 self.stdout = tempfile.TemporaryFile() |
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296 if statement.output == '>>': |
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297 self.stdout.write(getPasteBuffer()) |
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298 stop = cmd.Cmd.onecmd(self, statement.statement) |
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299 try: |
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300 if statement.command not in self.excludeFromHistory: |
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301 self.history.append(statement.fullStatement) |
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302 finally: |
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303 if statekeeper: |
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304 if statement.output and not statement.outputTo: |
27 | 305 self.stdout.seek(0) |
306 writeToPasteBuffer(self.stdout.read()) | |
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307 elif statement.pipe: |
52
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308 for result in redirect.communicate(): |
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309 statekeeper.stdout.write(result or '') |
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310 self.stdout.close() |
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311 statekeeper.restore() |
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312 |
0
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313 return stop |
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314 |
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315 def pseudo_raw_input(self, prompt): |
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316 """copied from cmd's cmdloop; like raw_input, but accounts for changed stdin, stdout""" |
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317 |
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318 if self.use_rawinput: |
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319 try: |
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320 line = raw_input(prompt) |
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321 except EOFError: |
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322 line = 'EOF' |
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323 else: |
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324 self.stdout.write(prompt) |
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325 self.stdout.flush() |
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326 line = self.stdin.readline() |
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327 if not len(line): |
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328 line = 'EOF' |
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329 else: |
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330 if line[-1] == '\n': # this was always true in Cmd |
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331 line = line[:-1] |
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332 return line |
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diff
changeset
|
333 |
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changeset
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334 def cmdloop(self, intro=None): |
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changeset
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335 """Repeatedly issue a prompt, accept input, parse an initial prefix |
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336 off the received input, and dispatch to action methods, passing them |
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changeset
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337 the remainder of the line as argument. |
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changeset
|
338 """ |
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changeset
|
339 |
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340 # An almost perfect copy from Cmd; however, the pseudo_raw_input portion |
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341 # has been split out so that it can be called separately |
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342 |
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changeset
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343 self.preloop() |
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344 if self.use_rawinput and self.completekey: |
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changeset
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345 try: |
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changeset
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346 import readline |
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347 self.old_completer = readline.get_completer() |
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348 readline.set_completer(self.complete) |
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349 readline.parse_and_bind(self.completekey+": complete") |
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350 except ImportError: |
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changeset
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351 pass |
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352 try: |
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changeset
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353 if intro is not None: |
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changeset
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354 self.intro = intro |
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355 if self.intro: |
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356 self.stdout.write(str(self.intro)+"\n") |
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changeset
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357 stop = None |
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changeset
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358 while not stop: |
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changeset
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359 if self.cmdqueue: |
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changeset
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360 line = self.cmdqueue.pop(0) |
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changeset
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361 else: |
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362 line = self.pseudo_raw_input(self.prompt) |
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363 line = self.precmd(line) |
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changeset
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364 stop = self.onecmd(line) |
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changeset
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365 stop = self.postcmd(stop, line) |
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changeset
|
366 self.postloop() |
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changeset
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367 finally: |
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changeset
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368 if self.use_rawinput and self.completekey: |
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changeset
|
369 try: |
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changeset
|
370 import readline |
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changeset
|
371 readline.set_completer(self.old_completer) |
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changeset
|
372 except ImportError: |
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changeset
|
373 pass |
43 | 374 return stop |
0
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changeset
|
375 |
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changeset
|
376 def do_EOF(self, arg): |
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changeset
|
377 return True |
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diff
changeset
|
378 do_eof = do_EOF |
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diff
changeset
|
379 |
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changeset
|
380 def clean(self, s): |
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changeset
|
381 """cleans up a string""" |
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changeset
|
382 if self.caseInsensitive: |
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changeset
|
383 return s.strip().lower() |
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diff
changeset
|
384 return s.strip() |
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diff
changeset
|
385 |
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diff
changeset
|
386 def showParam(self, param): |
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changeset
|
387 param = self.clean(param) |
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changeset
|
388 if param in self.settable: |
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changeset
|
389 val = getattr(self, param) |
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changeset
|
390 self.stdout.write('%s: %s\n' % (param, str(getattr(self, param)))) |
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diff
changeset
|
391 |
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diff
changeset
|
392 def do_quit(self, arg): |
43 | 393 return self._STOP_AND_EXIT |
0
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changeset
|
394 do_exit = do_quit |
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diff
changeset
|
395 do_q = do_quit |
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parents:
diff
changeset
|
396 |
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parents:
diff
changeset
|
397 def do_show(self, arg): |
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diff
changeset
|
398 'Shows value of a parameter' |
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parents:
diff
changeset
|
399 if arg.strip(): |
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parents:
diff
changeset
|
400 self.showParam(arg) |
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parents:
diff
changeset
|
401 else: |
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parents:
diff
changeset
|
402 for param in self.settable: |
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parents:
diff
changeset
|
403 self.showParam(param) |
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parents:
diff
changeset
|
404 |
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parents:
diff
changeset
|
405 def do_set(self, arg): |
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parents:
diff
changeset
|
406 'Sets a parameter' |
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changeset
|
407 try: |
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diff
changeset
|
408 paramName, val = arg.split(None, 1) |
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changeset
|
409 paramName = self.clean(paramName) |
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parents:
diff
changeset
|
410 if paramName not in self.settable: |
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parents:
diff
changeset
|
411 raise NotSettableError |
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parents:
diff
changeset
|
412 currentVal = getattr(self, paramName) |
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changeset
|
413 val = cast(currentVal, val.strip(self.terminators)) |
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parents:
diff
changeset
|
414 setattr(self, paramName, val) |
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parents:
diff
changeset
|
415 self.stdout.write('%s - was: %s\nnow: %s\n' % (paramName, currentVal, val)) |
febfdc79550b
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parents:
diff
changeset
|
416 except (ValueError, AttributeError, NotSettableError), e: |
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parents:
diff
changeset
|
417 self.do_show(arg) |
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parents:
diff
changeset
|
418 |
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parents:
diff
changeset
|
419 def do_shell(self, arg): |
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parents:
diff
changeset
|
420 'execute a command as if at the OS prompt.' |
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parents:
diff
changeset
|
421 os.system(arg) |
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parents:
diff
changeset
|
422 |
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parents:
diff
changeset
|
423 def do_history(self, arg): |
febfdc79550b
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parents:
diff
changeset
|
424 """history [arg]: lists past commands issued |
febfdc79550b
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parents:
diff
changeset
|
425 |
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parents:
diff
changeset
|
426 no arg -> list all |
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parents:
diff
changeset
|
427 arg is integer -> list one history item, by index |
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parents:
diff
changeset
|
428 arg is string -> string search |
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parents:
diff
changeset
|
429 arg is /enclosed in forward-slashes/ -> regular expression search |
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parents:
diff
changeset
|
430 """ |
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parents:
diff
changeset
|
431 if arg: |
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parents:
diff
changeset
|
432 history = self.history.get(arg) |
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parents:
diff
changeset
|
433 else: |
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parents:
diff
changeset
|
434 history = self.history |
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parents:
diff
changeset
|
435 for hi in history: |
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parents:
diff
changeset
|
436 self.stdout.write(hi.pr()) |
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parents:
diff
changeset
|
437 def last_matching(self, arg): |
febfdc79550b
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parents:
diff
changeset
|
438 try: |
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parents:
diff
changeset
|
439 if arg: |
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parents:
diff
changeset
|
440 return self.history.get(arg)[-1] |
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parents:
diff
changeset
|
441 else: |
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parents:
diff
changeset
|
442 return self.history[-1] |
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parents:
diff
changeset
|
443 except: |
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parents:
diff
changeset
|
444 return None |
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parents:
diff
changeset
|
445 def do_list(self, arg): |
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parents:
diff
changeset
|
446 """list [arg]: lists last command issued |
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parents:
diff
changeset
|
447 |
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parents:
diff
changeset
|
448 no arg -> list absolute last |
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parents:
diff
changeset
|
449 arg is integer -> list one history item, by index |
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parents:
diff
changeset
|
450 - arg, arg - (integer) -> list up to or after #arg |
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parents:
diff
changeset
|
451 arg is string -> list last command matching string search |
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parents:
diff
changeset
|
452 arg is /enclosed in forward-slashes/ -> regular expression search |
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parents:
diff
changeset
|
453 """ |
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parents:
diff
changeset
|
454 try: |
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parents:
diff
changeset
|
455 self.stdout.write(self.last_matching(arg).pr()) |
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parents:
diff
changeset
|
456 except: |
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parents:
diff
changeset
|
457 pass |
febfdc79550b
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parents:
diff
changeset
|
458 do_hi = do_history |
febfdc79550b
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parents:
diff
changeset
|
459 do_l = do_list |
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parents:
diff
changeset
|
460 do_li = do_list |
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parents:
diff
changeset
|
461 |
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parents:
diff
changeset
|
462 def do_ed(self, arg): |
febfdc79550b
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parents:
diff
changeset
|
463 """ed: edit most recent command in text editor |
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parents:
diff
changeset
|
464 ed [N]: edit numbered command from history |
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parents:
diff
changeset
|
465 ed [filename]: edit specified file name |
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parents:
diff
changeset
|
466 |
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parents:
diff
changeset
|
467 commands are run after editor is closed. |
febfdc79550b
moved repository to Assembla
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parents:
diff
changeset
|
468 "set edit (program-name)" or set EDITOR environment variable |
febfdc79550b
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parents:
diff
changeset
|
469 to control which editing program is used.""" |
febfdc79550b
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catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
470 if not self.editor: |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
471 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
|
472 return |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
473 filename = self.defaultFileName |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
474 buffer = '' |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
475 try: |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
476 arg = int(arg) |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
477 buffer = self.last_matching(arg) |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
478 except: |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
479 if arg: |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
480 filename = arg |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
481 else: |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
482 buffer = self.last_matching(arg) |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
483 |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
484 if buffer: |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
485 f = open(filename, 'w') |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
486 f.write(buffer or '') |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
487 f.close() |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
488 |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
489 os.system('%s %s' % (self.editor, filename)) |
48 | 490 self.do__load(filename) |
0
febfdc79550b
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catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
491 do_edit = do_ed |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
492 |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
493 def do_save(self, fname=None): |
febfdc79550b
moved repository to Assembla
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parents:
diff
changeset
|
494 """Saves most recent command to a file.""" |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
495 |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
496 if fname is None: |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
497 fname = self.defaultFileName |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
498 try: |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
499 f = open(fname, 'w') |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
500 f.write(self.history[-1]) |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
501 f.close() |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
502 except Exception, e: |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
503 print 'Error saving %s: %s' % (fname, str(e)) |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
504 |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
505 def do_load(self, fname=None): |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
506 """Runs command(s) from a file.""" |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
507 if fname is None: |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
508 fname = self.defaultFileName |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
509 keepstate = Statekeeper(self, ('stdin','use_rawinput','prompt','continuationPrompt')) |
41 | 510 if isinstance(fname, file): |
511 self.stdin = fname | |
512 else: | |
0
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
513 try: |
41 | 514 self.stdin = open(fname, 'r') |
515 except IOError, e: | |
516 try: | |
517 self.stdin = open('%s.%s' % (fname, self.defaultExtension), 'r') | |
518 except IOError: | |
519 print 'Problem opening file %s: \n%s' % (fname, e) | |
520 keepstate.restore() | |
521 return | |
0
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
522 self.use_rawinput = False |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
523 self.prompt = self.continuationPrompt = '' |
42 | 524 stop = self.cmdloop() |
0
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
525 self.stdin.close() |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
526 keepstate.restore() |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
527 self.lastcmd = '' |
48 | 528 return (stop == self._STOP_AND_EXIT) and self._STOP_AND_EXIT |
529 do__load = do_load # avoid an unfortunate legacy use of do_load from sqlpython | |
43 | 530 |
0
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
531 def do_run(self, arg): |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
532 """run [arg]: re-runs an earlier command |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
533 |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
534 no arg -> run most recent command |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
535 arg is integer -> run one history item, by index |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
536 arg is string -> run most recent command by string search |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
537 arg is /enclosed in forward-slashes/ -> run most recent by regex |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
538 """ |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
539 'run [N]: runs the SQL that was run N commands ago' |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
540 runme = self.last_matching(arg) |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
541 print runme |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
542 if runme: |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
543 runme = self.precmd(runme) |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
544 stop = self.onecmd(runme) |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
545 stop = self.postcmd(stop, runme) |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
546 do_r = do_run |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
547 |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
548 def fileimport(self, statement, source): |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
549 try: |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
550 f = open(source) |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
551 except IOError: |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
552 self.stdout.write("Couldn't read from file %s\n" % source) |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
553 return '' |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
554 data = f.read() |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
555 f.close() |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
556 return data |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
557 |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
558 class HistoryItem(str): |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
559 def __init__(self, instr): |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
560 str.__init__(self, instr) |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
561 self.lowercase = self.lower() |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
562 self.idx = None |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
563 def pr(self): |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
564 return '-------------------------[%d]\n%s\n' % (self.idx, str(self)) |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
565 |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
566 class History(list): |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
567 rangeFrom = re.compile(r'^([\d])+\s*\-$') |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
568 def append(self, new): |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
569 new = HistoryItem(new) |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
570 list.append(self, new) |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
571 new.idx = len(self) |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
572 def extend(self, new): |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
573 for n in new: |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
574 self.append(n) |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
575 def get(self, getme): |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
576 try: |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
577 getme = int(getme) |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
578 if getme < 0: |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
579 return self[:(-1 * getme)] |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
580 else: |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
581 return [self[getme-1]] |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
582 except IndexError: |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
583 return [] |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
584 except (ValueError, TypeError): |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
585 getme = getme.strip() |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
586 mtch = self.rangeFrom.search(getme) |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
587 if mtch: |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
588 return self[(int(mtch.group(1))-1):] |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
589 if getme.startswith(r'/') and getme.endswith(r'/'): |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
590 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
|
591 def isin(hi): |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
592 return finder.search(hi) |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
593 else: |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
594 def isin(hi): |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
595 return (getme.lower() in hi.lowercase) |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
596 return [itm for itm in self if isin(itm)] |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
597 |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
598 class NotSettableError(Exception): |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
599 pass |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
600 |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
601 def cast(current, new): |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
602 """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
|
603 typ = type(current) |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
604 if typ == bool: |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
605 try: |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
606 return bool(int(new)) |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
607 except ValueError, TypeError: |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
608 pass |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
609 try: |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
610 new = new.lower() |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
611 except: |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
612 pass |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
613 if (new=='on') or (new[0] in ('y','t')): |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
614 return True |
febfdc79550b
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615 if (new=='off') or (new[0] in ('n','f')): |
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616 return False |
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617 else: |
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618 try: |
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619 return typ(new) |
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620 except: |
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621 pass |
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622 print "Problem setting parameter (now %s) to %s; incorrect type?" % (current, new) |
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623 return current |
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624 |
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625 class Statekeeper(object): |
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626 def __init__(self, obj, attribs): |
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627 self.obj = obj |
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628 self.attribs = attribs |
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629 self.save() |
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630 def save(self): |
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631 for attrib in self.attribs: |
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632 setattr(self, attrib, getattr(self.obj, attrib)) |
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633 def restore(self): |
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634 for attrib in self.attribs: |
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635 setattr(self.obj, attrib, getattr(self, attrib)) |
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636 |
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637 if __name__ == '__main__': |
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638 doctest.testmod() |