Mercurial > python-cmd2
annotate cmd2.py @ 221:9aa1f34455b4 0.4.8
autobind test failing
author | catherine@Elli.myhome.westell.com |
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date | Wed, 18 Mar 2009 22:02:15 -0400 |
parents | 8c277a37e2bc |
children | 1702ce785a8d |
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 |
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12 Optional _onchange_{paramname} called when environment parameter changes |
13 | 13 Parsing commands with `optparse` options (flags) |
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14 Redirection to file with >, >>; input from file with < |
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15 Easy transcript-based testing of applications (see example/example.py) |
13 | 16 |
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17 Note that redirection with > and | will only work if `self.stdout.write()` |
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18 is used in place of `print`. The standard library's `cmd` module is |
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19 written to use `self.stdout.write()`, |
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20 |
14 | 21 - Catherine Devlin, Jan 03 2008 - catherinedevlin.blogspot.com |
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22 |
126 | 23 mercurial repository at http://www.assembla.com/wiki/show/python-cmd2 |
14 | 24 CHANGES: |
25 As of 0.3.0, options should be specified as `optparse` options. See README.txt. | |
26 flagReader.py options are still supported for backward compatibility | |
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27 """ |
192
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28 import cmd, re, os, sys, optparse, subprocess, tempfile, pyparsing, doctest |
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29 import unittest, string, datetime |
10 | 30 from optparse import make_option |
211 | 31 __version__ = '0.4.8' |
10 | 32 |
11 | 33 class OptionParser(optparse.OptionParser): |
34 def exit(self, status=0, msg=None): | |
38 | 35 self.values._exit = True |
11 | 36 if msg: |
15 | 37 print msg |
211 | 38 |
39 def print_help(self, *args, **kwargs): | |
40 # now, I need to call help of the calling function. Hmm. | |
41 try: | |
42 print self._func.__doc__ | |
43 except AttributeError: | |
44 pass | |
45 optparse.OptionParser.print_help(self, *args, **kwargs) | |
11 | 46 |
47 def error(self, msg): | |
48 """error(msg : string) | |
49 | |
50 Print a usage message incorporating 'msg' to stderr and exit. | |
51 If you override this in a subclass, it should not return -- it | |
52 should either exit or raise an exception. | |
53 """ | |
15 | 54 raise |
11 | 55 |
187 | 56 def remainingArgs(oldArgs, newArgList): |
57 ''' | |
58 >>> remainingArgs('-f bar bar cow', ['bar', 'cow']) | |
59 'bar cow' | |
60 ''' | |
189 | 61 pattern = '\s+'.join(re.escape(a) for a in newArgList) + '\s*$' |
187 | 62 matchObj = re.search(pattern, oldArgs) |
63 return oldArgs[matchObj.start():] | |
64 | |
10 | 65 def options(option_list): |
66 def option_setup(func): | |
11 | 67 optionParser = OptionParser() |
10 | 68 for opt in option_list: |
69 optionParser.add_option(opt) | |
12 | 70 optionParser.set_usage("%s [options] arg" % func.__name__.strip('do_')) |
211 | 71 optionParser._func = func |
10 | 72 def newFunc(instance, arg): |
73 try: | |
190 | 74 opts, newArgList = optionParser.parse_args(arg.split()) # doesn't understand quoted strings shouldn't be dissected! |
75 newArgs = remainingArgs(arg, newArgList) # should it permit flags after args? | |
20 | 76 except (optparse.OptionValueError, optparse.BadOptionError, |
77 optparse.OptionError, optparse.AmbiguousOptionError, | |
78 optparse.OptionConflictError), e: | |
10 | 79 print e |
80 optionParser.print_help() | |
38 | 81 return |
82 if hasattr(opts, '_exit'): | |
83 return None | |
214 | 84 if hasattr(arg, 'parser'): |
85 terminator = arg.parsed.terminator | |
86 try: | |
87 if arg.parsed.terminator[0] == '\n': | |
88 terminator = arg.parsed.terminator[0] | |
89 except IndexError: | |
90 pass | |
91 arg = arg.parser('%s %s%s%s' % (arg.parsed.command, newArgs, | |
92 terminator, arg.parsed.suffix)) | |
93 else: | |
94 arg = newArgs | |
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95 result = func(instance, arg, opts) |
159 | 96 return result |
10 | 97 newFunc.__doc__ = '%s\n%s' % (func.__doc__, optionParser.format_help()) |
98 return newFunc | |
99 return option_setup | |
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100 |
27 | 101 class PasteBufferError(EnvironmentError): |
102 if sys.platform[:3] == 'win': | |
103 errmsg = """Redirecting to or from paste buffer requires pywin32 | |
104 to be installed on operating system. | |
105 Download from http://sourceforge.net/projects/pywin32/""" | |
106 else: | |
107 errmsg = """Redirecting to or from paste buffer requires xclip | |
108 to be installed on operating system. | |
109 On Debian/Ubuntu, 'sudo apt-get install xclip' will install it.""" | |
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110 def __init__(self): |
27 | 111 Exception.__init__(self, self.errmsg) |
112 | |
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113 '''check here if functions exist; otherwise, stub out''' |
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114 pastebufferr = """Redirecting to or from paste buffer requires %s |
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115 to be installed on operating system. |
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116 %s""" |
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117 if subprocess.mswindows: |
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118 try: |
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119 import win32clipboard |
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120 def getPasteBuffer(): |
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121 win32clipboard.OpenClipboard(0) |
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122 try: |
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123 result = win32clipboard.GetClipboardData() |
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124 except TypeError: |
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125 result = '' #non-text |
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126 win32clipboard.CloseClipboard() |
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127 return result |
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128 def writeToPasteBuffer(txt): |
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129 win32clipboard.OpenClipboard(0) |
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130 win32clipboard.EmptyClipboard() |
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131 win32clipboard.SetClipboardText(txt) |
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132 win32clipboard.CloseClipboard() |
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133 except ImportError: |
106 | 134 def getPasteBuffer(*args): |
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135 raise OSError, pastebufferr % ('pywin32', 'Download from http://sourceforge.net/projects/pywin32/') |
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136 setPasteBuffer = getPasteBuffer |
27 | 137 else: |
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138 can_clip = False |
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139 try: |
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140 subprocess.check_call('xclip -o -sel clip', shell=True, stdout=subprocess.PIPE, stdin=subprocess.PIPE) |
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141 can_clip = True |
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142 except AttributeError: # check_call not defined, Python < 2.5 |
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143 teststring = 'Testing for presence of xclip.' |
31 | 144 xclipproc = subprocess.Popen('xclip -sel clip', shell=True, stdout=subprocess.PIPE, stdin=subprocess.PIPE) |
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145 xclipproc.stdin.write(teststring) |
31 | 146 xclipproc.stdin.close() |
147 xclipproc = subprocess.Popen('xclip -o -sel clip', shell=True, stdout=subprocess.PIPE, stdin=subprocess.PIPE) | |
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148 if xclipproc.stdout.read() == teststring: |
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149 can_clip = True |
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150 except (subprocess.CalledProcessError, OSError, IOError): |
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151 pass |
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152 if can_clip: |
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153 def getPasteBuffer(): |
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154 xclipproc = subprocess.Popen('xclip -o -sel clip', shell=True, stdout=subprocess.PIPE, stdin=subprocess.PIPE) |
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155 return xclipproc.stdout.read() |
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156 def writeToPasteBuffer(txt): |
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157 xclipproc = subprocess.Popen('xclip -sel clip', shell=True, stdout=subprocess.PIPE, stdin=subprocess.PIPE) |
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158 xclipproc.stdin.write(txt) |
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159 xclipproc.stdin.close() |
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160 # but we want it in both the "primary" and "mouse" clipboards |
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161 xclipproc = subprocess.Popen('xclip', shell=True, stdout=subprocess.PIPE, stdin=subprocess.PIPE) |
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162 xclipproc.stdin.write(txt) |
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163 xclipproc.stdin.close() |
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164 else: |
106 | 165 def getPasteBuffer(*args): |
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166 raise OSError, pastebufferr % ('xclip', 'On Debian/Ubuntu, install with "sudo apt-get install xclip"') |
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167 setPasteBuffer = getPasteBuffer |
106 | 168 writeToPasteBuffer = getPasteBuffer |
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169 |
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170 pyparsing.ParserElement.setDefaultWhitespaceChars(' \t') |
154 | 171 |
157 | 172 class ParsedString(str): |
173 pass | |
174 | |
203
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175 class SkipToLast(pyparsing.SkipTo): |
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176 def parseImpl( self, instring, loc, doActions=True ): |
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177 resultStore = [] |
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178 startLoc = loc |
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179 instrlen = len(instring) |
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180 expr = self.expr |
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181 failParse = False |
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182 while loc <= instrlen: |
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183 try: |
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184 if self.failOn: |
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185 failParse = True |
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186 self.failOn.tryParse(instring, loc) |
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187 failParse = False |
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188 loc = expr._skipIgnorables( instring, loc ) |
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189 expr._parse( instring, loc, doActions=False, callPreParse=False ) |
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190 skipText = instring[startLoc:loc] |
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191 if self.includeMatch: |
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192 loc,mat = expr._parse(instring,loc,doActions,callPreParse=False) |
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193 if mat: |
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194 skipRes = ParseResults( skipText ) |
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195 skipRes += mat |
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196 resultStore.append((loc, [ skipRes ])) |
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197 else: |
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198 resultStore,append((loc, [ skipText ])) |
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199 else: |
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200 resultStore.append((loc, [ skipText ])) |
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201 loc += 1 |
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202 except (pyparsing.ParseException,IndexError): |
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203 if failParse: |
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204 raise |
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205 else: |
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206 loc += 1 |
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207 if resultStore: |
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208 return resultStore[-1] |
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209 else: |
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210 exc = self.myException |
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211 exc.loc = loc |
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212 exc.pstr = instring |
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213 raise exc |
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214 |
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215 def replace_with_file_contents(fname): |
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216 if fname: |
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217 try: |
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218 result = open(os.path.expanduser(fname[0])).read() |
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219 except IOError: |
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220 result = '< %s' % fname[0] # wasn't a file after all |
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221 else: |
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222 result = getPasteBuffer() |
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223 return result |
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224 |
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225 class Cmd(cmd.Cmd): |
103 | 226 echo = False |
207 | 227 case_insensitive = True |
228 continuation_prompt = '> ' | |
192
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229 timing = False |
166
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230 legalChars = '!#$%.:?@_' + pyparsing.alphanums + pyparsing.alphas8bit # make sure your terminators are not in here! |
137 | 231 shortcuts = {'?': 'help', '!': 'shell', '@': 'load' } |
106 | 232 excludeFromHistory = '''run r list l history hi ed edit li eof'''.split() |
233 noSpecialParse = 'set ed edit exit'.split() | |
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234 defaultExtension = 'txt' |
207 | 235 default_file_name = 'command.txt' |
236 settable = ['prompt', 'continuation_prompt', 'default_file_name', 'editor', 'case_insensitive', | |
203
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237 'echo', 'timing'] |
199 | 238 settable.sort() |
169 | 239 |
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240 editor = os.environ.get('EDITOR') |
42 | 241 _STOP_AND_EXIT = 2 |
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242 if not editor: |
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243 if sys.platform[:3] == 'win': |
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244 editor = 'notepad' |
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245 else: |
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246 for editor in ['gedit', 'kate', 'vim', 'emacs', 'nano', 'pico']: |
47 | 247 if not os.system('which %s' % (editor)): |
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248 break |
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249 |
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250 def do_cmdenvironment(self, args): |
193 | 251 '''Summary report of interactive parameters.''' |
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252 self.stdout.write(""" |
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253 Commands are %(casesensitive)scase-sensitive. |
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254 Commands may be terminated with: %(terminators)s |
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255 Settable parameters: %(settable)s |
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256 """ % |
207 | 257 { 'casesensitive': (self.case_insensitive and 'not ') or '', |
171 | 258 'terminators': str(self.terminators), |
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259 'settable': ' '.join(self.settable) |
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260 }) |
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261 |
10 | 262 def do_help(self, arg): |
263 try: | |
264 fn = getattr(self, 'do_' + arg) | |
265 if fn and fn.optionParser: | |
266 fn.optionParser.print_help(file=self.stdout) | |
211 | 267 return |
10 | 268 except AttributeError: |
269 pass | |
211 | 270 cmd.Cmd.do_help(self, arg) |
10 | 271 |
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272 def __init__(self, *args, **kwargs): |
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273 cmd.Cmd.__init__(self, *args, **kwargs) |
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274 self.history = History() |
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275 self._init_parser() |
219 | 276 self.pystate = {} |
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277 |
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278 def do_shortcuts(self, args): |
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279 """Lists single-key shortcuts available.""" |
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280 result = "\n".join('%s: %s' % (sc[0], sc[1]) for sc in self.shortcuts.items()) |
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281 self.stdout.write("Single-key shortcuts for other commands:\n%s\n" % (result)) |
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282 |
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283 prefixParser = pyparsing.Empty() |
137 | 284 commentGrammars = pyparsing.Or([pyparsing.pythonStyleComment, pyparsing.cStyleComment]) |
153 | 285 commentGrammars.addParseAction(lambda x: '') |
136 | 286 commentInProgress = pyparsing.Literal('/*') + pyparsing.SkipTo(pyparsing.stringEnd) |
171 | 287 terminators = [';'] |
288 blankLinesAllowed = False | |
153 | 289 multilineCommands = [] |
152
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290 |
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291 def _init_parser(self): |
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292 r''' |
146 | 293 >>> c = Cmd() |
153 | 294 >>> c.multilineCommands = ['multiline'] |
207 | 295 >>> c.case_insensitive = True |
153 | 296 >>> c._init_parser() |
158 | 297 >>> print c.parser.parseString('').dump() |
298 [] | |
299 >>> print c.parser.parseString('/* empty command */').dump() | |
300 [] | |
301 >>> print c.parser.parseString('plainword').dump() | |
302 ['plainword', ''] | |
303 - command: plainword | |
304 - statement: ['plainword', ''] | |
305 - command: plainword | |
157 | 306 >>> print c.parser.parseString('termbare;').dump() |
158 | 307 ['termbare', '', ';', ''] |
308 - command: termbare | |
309 - statement: ['termbare', '', ';'] | |
310 - command: termbare | |
311 - terminator: ; | |
312 - terminator: ; | |
157 | 313 >>> print c.parser.parseString('termbare; suffx').dump() |
158 | 314 ['termbare', '', ';', 'suffx'] |
315 - command: termbare | |
316 - statement: ['termbare', '', ';'] | |
317 - command: termbare | |
318 - terminator: ; | |
319 - suffix: suffx | |
320 - terminator: ; | |
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321 >>> print c.parser.parseString('barecommand').dump() |
153 | 322 ['barecommand', ''] |
323 - command: barecommand | |
324 - statement: ['barecommand', ''] | |
325 - command: barecommand | |
326 >>> print c.parser.parseString('COMmand with args').dump() | |
157 | 327 ['command', 'with args'] |
328 - args: with args | |
153 | 329 - command: command |
157 | 330 - statement: ['command', 'with args'] |
331 - args: with args | |
153 | 332 - command: command |
152
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333 >>> print c.parser.parseString('command with args and terminator; and suffix').dump() |
158 | 334 ['command', 'with args and terminator', ';', 'and suffix'] |
153 | 335 - args: with args and terminator |
336 - command: command | |
337 - statement: ['command', 'with args and terminator', ';'] | |
338 - args: with args and terminator | |
339 - command: command | |
340 - terminator: ; | |
158 | 341 - suffix: and suffix |
342 - terminator: ; | |
153 | 343 >>> print c.parser.parseString('simple | piped').dump() |
157 | 344 ['simple', '', '|', ' piped'] |
153 | 345 - command: simple |
157 | 346 - pipeTo: piped |
153 | 347 - statement: ['simple', ''] |
348 - command: simple | |
199 | 349 >>> print c.parser.parseString('double-pipe || is not a pipe').dump() |
350 ['double', '-pipe || is not a pipe'] | |
351 - args: -pipe || is not a pipe | |
352 - command: double | |
353 - statement: ['double', '-pipe || is not a pipe'] | |
354 - args: -pipe || is not a pipe | |
355 - command: double | |
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356 >>> print c.parser.parseString('command with args, terminator;sufx | piped').dump() |
157 | 357 ['command', 'with args, terminator', ';', 'sufx', '|', ' piped'] |
153 | 358 - args: with args, terminator |
359 - command: command | |
157 | 360 - pipeTo: piped |
153 | 361 - statement: ['command', 'with args, terminator', ';'] |
362 - args: with args, terminator | |
363 - command: command | |
364 - terminator: ; | |
365 - suffix: sufx | |
155 | 366 - terminator: ; |
152
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367 >>> print c.parser.parseString('output into > afile.txt').dump() |
157 | 368 ['output', 'into', '>', 'afile.txt'] |
153 | 369 - args: into |
370 - command: output | |
371 - output: > | |
155 | 372 - outputTo: afile.txt |
157 | 373 - statement: ['output', 'into'] |
374 - args: into | |
375 - command: output | |
376 >>> print c.parser.parseString('output into;sufx | pipethrume plz > afile.txt').dump() | |
377 ['output', 'into', ';', 'sufx', '|', ' pipethrume plz', '>', 'afile.txt'] | |
378 - args: into | |
379 - command: output | |
380 - output: > | |
381 - outputTo: afile.txt | |
382 - pipeTo: pipethrume plz | |
153 | 383 - statement: ['output', 'into', ';'] |
384 - args: into | |
385 - command: output | |
386 - terminator: ; | |
387 - suffix: sufx | |
388 - terminator: ; | |
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389 >>> print c.parser.parseString('output to paste buffer >> ').dump() |
157 | 390 ['output', 'to paste buffer', '>>', ''] |
391 - args: to paste buffer | |
153 | 392 - command: output |
393 - output: >> | |
157 | 394 - statement: ['output', 'to paste buffer'] |
395 - args: to paste buffer | |
153 | 396 - command: output |
152
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397 >>> print c.parser.parseString('ignore the /* commented | > */ stuff;').dump() |
153 | 398 ['ignore', 'the /* commented | > */ stuff', ';', ''] |
399 - args: the /* commented | > */ stuff | |
400 - command: ignore | |
401 - statement: ['ignore', 'the /* commented | > */ stuff', ';'] | |
402 - args: the /* commented | > */ stuff | |
403 - command: ignore | |
404 - terminator: ; | |
405 - terminator: ; | |
406 >>> print c.parser.parseString('has > inside;').dump() | |
407 ['has', '> inside', ';', ''] | |
408 - args: > inside | |
409 - command: has | |
410 - statement: ['has', '> inside', ';'] | |
411 - args: > inside | |
412 - command: has | |
413 - terminator: ; | |
414 - terminator: ; | |
415 >>> print c.parser.parseString('multiline has > inside an unfinished command').dump() | |
173 | 416 ['multiline', ' has > inside an unfinished command'] |
153 | 417 - multilineCommand: multiline |
418 >>> print c.parser.parseString('multiline has > inside;').dump() | |
419 ['multiline', 'has > inside', ';', ''] | |
420 - args: has > inside | |
421 - multilineCommand: multiline | |
422 - statement: ['multiline', 'has > inside', ';'] | |
423 - args: has > inside | |
424 - multilineCommand: multiline | |
425 - terminator: ; | |
426 - terminator: ; | |
427 >>> print c.parser.parseString('multiline command /* with comment in progress;').dump() | |
173 | 428 ['multiline', ' command /* with comment in progress;'] |
153 | 429 - multilineCommand: multiline |
430 >>> print c.parser.parseString('multiline command /* with comment complete */ is done;').dump() | |
431 ['multiline', 'command /* with comment complete */ is done', ';', ''] | |
432 - args: command /* with comment complete */ is done | |
433 - multilineCommand: multiline | |
434 - statement: ['multiline', 'command /* with comment complete */ is done', ';'] | |
435 - args: command /* with comment complete */ is done | |
436 - multilineCommand: multiline | |
437 - terminator: ; | |
158 | 438 - terminator: ; |
186 | 439 >>> print c.parser.parseString('multiline command ends\n\n').dump() |
440 ['multiline', 'command ends', '\n', '\n'] | |
441 - args: command ends | |
442 - multilineCommand: multiline | |
443 - statement: ['multiline', 'command ends', '\n', '\n'] | |
444 - args: command ends | |
445 - multilineCommand: multiline | |
446 - terminator: ['\n', '\n'] | |
447 - terminator: ['\n', '\n'] | |
153 | 448 ''' |
195
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449 outputParser = (pyparsing.Literal('>>') | (pyparsing.WordStart() + '>') | pyparsing.Regex('[^=]>'))('output') |
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450 |
171 | 451 terminatorParser = pyparsing.Or([(hasattr(t, 'parseString') and t) or pyparsing.Literal(t) for t in self.terminators])('terminator') |
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452 stringEnd = pyparsing.stringEnd ^ '\nEOF' |
207 | 453 self.multilineCommand = pyparsing.Or([pyparsing.Keyword(c, caseless=self.case_insensitive) for c in self.multilineCommands])('multilineCommand') |
186 | 454 oneLineCommand = (~self.multilineCommand + pyparsing.Word(self.legalChars))('command') |
160 | 455 pipe = pyparsing.Keyword('|', identChars='|') |
203
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456 self.commentGrammars.ignore(pyparsing.quotedString).setParseAction(lambda x: '') |
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457 self.commentInProgress.ignore(pyparsing.quotedString).ignore(pyparsing.cStyleComment) |
153 | 458 afterElements = \ |
160 | 459 pyparsing.Optional(pipe + pyparsing.SkipTo(outputParser ^ stringEnd)('pipeTo')) + \ |
155 | 460 pyparsing.Optional(outputParser + pyparsing.SkipTo(stringEnd).setParseAction(lambda x: x[0].strip())('outputTo')) |
207 | 461 if self.case_insensitive: |
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462 self.multilineCommand.setParseAction(lambda x: x[0].lower()) |
153 | 463 oneLineCommand.setParseAction(lambda x: x[0].lower()) |
171 | 464 if self.blankLinesAllowed: |
184
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465 self.blankLineTerminationParser = pyparsing.NoMatch |
171 | 466 else: |
186 | 467 self.blankLineTerminator = (pyparsing.lineEnd + pyparsing.lineEnd)('terminator') |
184
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468 self.blankLineTerminator.setResultsName('terminator') |
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469 self.blankLineTerminationParser = ((self.multilineCommand ^ oneLineCommand) + pyparsing.SkipTo(self.blankLineTerminator).setParseAction(lambda x: x[0].strip())('args') + self.blankLineTerminator)('statement') |
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470 self.multilineParser = (((self.multilineCommand ^ oneLineCommand) + SkipToLast(terminatorParser).setParseAction(lambda x: x[0].strip())('args') + terminatorParser)('statement') + |
184
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471 pyparsing.SkipTo(outputParser ^ pipe ^ stringEnd).setParseAction(lambda x: x[0].strip())('suffix') + afterElements) |
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472 self.singleLineParser = ((oneLineCommand + pyparsing.SkipTo(terminatorParser ^ stringEnd ^ pipe ^ outputParser).setParseAction(lambda x:x[0].strip())('args'))('statement') + |
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473 pyparsing.Optional(terminatorParser) + afterElements) |
186 | 474 #self.multilineParser = self.multilineParser.setResultsName('multilineParser') |
475 #self.singleLineParser = self.singleLineParser.setResultsName('singleLineParser') | |
476 #self.blankLineTerminationParser = self.blankLineTerminationParser.setResultsName('blankLineTerminatorParser') | |
153 | 477 self.parser = ( |
173 | 478 stringEnd | |
215
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479 self.prefixParser + self.multilineParser | |
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480 self.prefixParser + self.singleLineParser | |
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481 self.prefixParser + self.blankLineTerminationParser | |
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diff
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482 self.prefixParser + self.multilineCommand + pyparsing.SkipTo(stringEnd) |
153 | 483 ) |
203
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diff
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|
484 self.parser.ignore(pyparsing.quotedString).ignore(self.commentGrammars).ignore(self.commentInProgress) |
169 | 485 |
154 | 486 inputMark = pyparsing.Literal('<') |
487 inputMark.setParseAction(lambda x: '') | |
204 | 488 fileName = pyparsing.Word(self.legalChars + '/\\') |
489 inputFrom = fileName('inputFrom') | |
203
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diff
changeset
|
490 inputFrom.setParseAction(replace_with_file_contents) |
204 | 491 # a not-entirely-satisfactory way of distinguishing < as in "import from" from < |
492 # as in "lesser than" | |
493 self.inputParser = inputMark + pyparsing.Optional(inputFrom) + pyparsing.Optional('>') + \ | |
494 pyparsing.Optional(fileName) + (pyparsing.stringEnd | '|') | |
203
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diff
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495 self.inputParser.ignore(pyparsing.quotedString).ignore(self.commentGrammars).ignore(self.commentInProgress) |
153 | 496 |
219 | 497 def preparse(self, raw, **kwargs): |
498 return raw | |
499 | |
165 | 500 def parsed(self, raw, **kwargs): |
162
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diff
changeset
|
501 if isinstance(raw, ParsedString): |
165 | 502 p = raw |
503 else: | |
219 | 504 raw = self.preparse(raw, **kwargs) |
171 | 505 s = self.inputParser.transformString(raw.lstrip()) |
165 | 506 for (shortcut, expansion) in self.shortcuts.items(): |
201 | 507 if s.lower().startswith(shortcut): |
165 | 508 s = s.replace(shortcut, expansion + ' ', 1) |
509 break | |
510 result = self.parser.parseString(s) | |
511 result['command'] = result.multilineCommand or result.command | |
512 result['raw'] = raw | |
513 result['clean'] = self.commentGrammars.transformString(result.args) | |
514 result['expanded'] = s | |
166
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diff
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|
515 p = ParsedString(result.clean) |
165 | 516 p.parsed = result |
517 p.parser = self.parsed | |
518 for (key, val) in kwargs.items(): | |
519 p.parsed[key] = val | |
157 | 520 return p |
521 | |
215
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diff
changeset
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522 def postparsing_precmd(self, statement): |
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diff
changeset
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523 stop = 0 |
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parents:
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diff
changeset
|
524 return stop, statement |
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parents:
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diff
changeset
|
525 def postparsing_postcmd(self, stop): |
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diff
changeset
|
526 return stop |
166
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diff
changeset
|
527 def onecmd(self, line): |
0
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changeset
|
528 """Interpret the argument as though it had been typed in response |
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changeset
|
529 to the prompt. |
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diff
changeset
|
530 |
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diff
changeset
|
531 This may be overridden, but should not normally need to be; |
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changeset
|
532 see the precmd() and postcmd() methods for useful execution hooks. |
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changeset
|
533 The return value is a flag indicating whether interpretation of |
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changeset
|
534 commands by the interpreter should stop. |
157 | 535 |
536 This (`cmd2`) version of `onecmd` already override's `cmd`'s `onecmd`. | |
0
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changeset
|
537 |
3 | 538 """ |
83
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merged copy to both clipboards in
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diff
changeset
|
539 if not line: |
157 | 540 return self.emptyline() |
135
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broken; midway through comments
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diff
changeset
|
541 if not pyparsing.Or(self.commentGrammars).setParseAction(lambda x: '').transformString(line): |
179
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oh no... must accept prompt changes
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diff
changeset
|
542 return 0 # command was empty except for comments |
154 | 543 try: |
544 statement = self.parsed(line) | |
170
310ebf4baa7a
\n endings still squirrely; watch blank spaces in saved files
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diff
changeset
|
545 while statement.parsed.multilineCommand and (statement.parsed.terminator == ''): |
192
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added settable timings param
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191
diff
changeset
|
546 statement = '%s\n%s' % (statement.parsed.raw, |
207 | 547 self.pseudo_raw_input(self.continuation_prompt)) |
192
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added settable timings param
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diff
changeset
|
548 statement = self.parsed(statement) |
154 | 549 except Exception, e: |
550 print e | |
551 return 0 | |
79
f583663c610f
switch to pyparsing worked
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parents:
56
diff
changeset
|
552 |
216 | 553 try: |
554 (stop, statement) = self.postparsing_precmd(statement) | |
555 except Exception, e: | |
556 print str(e) | |
557 return 0 | |
215
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diff
changeset
|
558 if stop: |
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diff
changeset
|
559 return self.postparsing_postcmd(stop) |
175 | 560 |
215
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diff
changeset
|
561 if not statement.parsed.command: |
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diff
changeset
|
562 return self.postparsing_postcmd(stop=0) |
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diff
changeset
|
563 |
0
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changeset
|
564 statekeeper = None |
154 | 565 |
157 | 566 if statement.parsed.pipeTo: |
567 redirect = subprocess.Popen(statement.parsed.pipeTo, shell=True, stdout=subprocess.PIPE, stdin=subprocess.PIPE) | |
51 | 568 statekeeper = Statekeeper(self, ('stdout',)) |
47 | 569 self.stdout = redirect.stdin |
157 | 570 elif statement.parsed.output: |
79
f583663c610f
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parents:
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diff
changeset
|
571 statekeeper = Statekeeper(self, ('stdout',)) |
157 | 572 if statement.parsed.outputTo: |
79
f583663c610f
switch to pyparsing worked
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parents:
56
diff
changeset
|
573 mode = 'w' |
157 | 574 if statement.parsed.output == '>>': |
79
f583663c610f
switch to pyparsing worked
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parents:
56
diff
changeset
|
575 mode = 'a' |
f583663c610f
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parents:
56
diff
changeset
|
576 try: |
202 | 577 self.stdout = open(os.path.expanduser(statement.parsed.outputTo), mode) |
79
f583663c610f
switch to pyparsing worked
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parents:
56
diff
changeset
|
578 except OSError, e: |
f583663c610f
switch to pyparsing worked
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parents:
56
diff
changeset
|
579 print e |
215
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parents:
214
diff
changeset
|
580 return self.postparsing_postcmd(stop=0) |
79
f583663c610f
switch to pyparsing worked
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parents:
56
diff
changeset
|
581 else: |
51 | 582 statekeeper = Statekeeper(self, ('stdout',)) |
79
f583663c610f
switch to pyparsing worked
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parents:
56
diff
changeset
|
583 self.stdout = tempfile.TemporaryFile() |
157 | 584 if statement.parsed.output == '>>': |
79
f583663c610f
switch to pyparsing worked
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parents:
56
diff
changeset
|
585 self.stdout.write(getPasteBuffer()) |
133
31674148b13c
just beginning to make comments work
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parents:
126
diff
changeset
|
586 try: |
157 | 587 # "heart" of the command, replace's cmd's onecmd() |
588 self.lastcmd = statement.parsed.expanded | |
589 try: | |
590 func = getattr(self, 'do_' + statement.parsed.command) | |
591 except AttributeError: | |
215
e9091d9a3a60
now hooks for pre and post but after parse
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parents:
214
diff
changeset
|
592 return self.postparsing_postcmd(self.default(statement)) |
192
c0d4c7ba14a9
added settable timings param
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parents:
191
diff
changeset
|
593 timestart = datetime.datetime.now() |
c0d4c7ba14a9
added settable timings param
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parents:
191
diff
changeset
|
594 stop = func(statement) |
c0d4c7ba14a9
added settable timings param
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parents:
191
diff
changeset
|
595 if self.timing: |
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added settable timings param
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parents:
191
diff
changeset
|
596 print 'Elapsed: %s' % str(datetime.datetime.now() - timestart) |
133
31674148b13c
just beginning to make comments work
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parents:
126
diff
changeset
|
597 except Exception, e: |
31674148b13c
just beginning to make comments work
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parents:
126
diff
changeset
|
598 print e |
0
febfdc79550b
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parents:
diff
changeset
|
599 try: |
157 | 600 if statement.parsed.command not in self.excludeFromHistory: |
601 self.history.append(statement.parsed.raw) | |
0
febfdc79550b
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parents:
diff
changeset
|
602 finally: |
febfdc79550b
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parents:
diff
changeset
|
603 if statekeeper: |
157 | 604 if statement.parsed.output and not statement.parsed.outputTo: |
27 | 605 self.stdout.seek(0) |
134
c28ae4f75c15
incorporated changes from branch at work
catherine@Elli.myhome.westell.com
parents:
133
diff
changeset
|
606 try: |
c28ae4f75c15
incorporated changes from branch at work
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parents:
133
diff
changeset
|
607 writeToPasteBuffer(self.stdout.read()) |
c28ae4f75c15
incorporated changes from branch at work
catherine@Elli.myhome.westell.com
parents:
133
diff
changeset
|
608 except Exception, e: |
c28ae4f75c15
incorporated changes from branch at work
catherine@Elli.myhome.westell.com
parents:
133
diff
changeset
|
609 print str(e) |
157 | 610 elif statement.parsed.pipeTo: |
52
49de899a05a8
new unified pipe and redirect works on wc
catherine@localhost
parents:
51
diff
changeset
|
611 for result in redirect.communicate(): |
49de899a05a8
new unified pipe and redirect works on wc
catherine@localhost
parents:
51
diff
changeset
|
612 statekeeper.stdout.write(result or '') |
0
febfdc79550b
moved repository to Assembla
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parents:
diff
changeset
|
613 self.stdout.close() |
febfdc79550b
moved repository to Assembla
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parents:
diff
changeset
|
614 statekeeper.restore() |
52
49de899a05a8
new unified pipe and redirect works on wc
catherine@localhost
parents:
51
diff
changeset
|
615 |
215
e9091d9a3a60
now hooks for pre and post but after parse
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parents:
214
diff
changeset
|
616 return self.postparsing_postcmd(stop) |
0
febfdc79550b
moved repository to Assembla
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parents:
diff
changeset
|
617 |
febfdc79550b
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parents:
diff
changeset
|
618 def pseudo_raw_input(self, prompt): |
febfdc79550b
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parents:
diff
changeset
|
619 """copied from cmd's cmdloop; like raw_input, but accounts for changed stdin, stdout""" |
febfdc79550b
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parents:
diff
changeset
|
620 |
febfdc79550b
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parents:
diff
changeset
|
621 if self.use_rawinput: |
febfdc79550b
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parents:
diff
changeset
|
622 try: |
febfdc79550b
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parents:
diff
changeset
|
623 line = raw_input(prompt) |
febfdc79550b
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parents:
diff
changeset
|
624 except EOFError: |
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parents:
diff
changeset
|
625 line = 'EOF' |
febfdc79550b
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parents:
diff
changeset
|
626 else: |
febfdc79550b
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parents:
diff
changeset
|
627 self.stdout.write(prompt) |
febfdc79550b
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parents:
diff
changeset
|
628 self.stdout.flush() |
febfdc79550b
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parents:
diff
changeset
|
629 line = self.stdin.readline() |
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parents:
diff
changeset
|
630 if not len(line): |
febfdc79550b
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parents:
diff
changeset
|
631 line = 'EOF' |
febfdc79550b
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parents:
diff
changeset
|
632 else: |
febfdc79550b
moved repository to Assembla
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parents:
diff
changeset
|
633 if line[-1] == '\n': # this was always true in Cmd |
febfdc79550b
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parents:
diff
changeset
|
634 line = line[:-1] |
febfdc79550b
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parents:
diff
changeset
|
635 return line |
febfdc79550b
moved repository to Assembla
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parents:
diff
changeset
|
636 |
febfdc79550b
moved repository to Assembla
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parents:
diff
changeset
|
637 def cmdloop(self, intro=None): |
febfdc79550b
moved repository to Assembla
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parents:
diff
changeset
|
638 """Repeatedly issue a prompt, accept input, parse an initial prefix |
febfdc79550b
moved repository to Assembla
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parents:
diff
changeset
|
639 off the received input, and dispatch to action methods, passing them |
febfdc79550b
moved repository to Assembla
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parents:
diff
changeset
|
640 the remainder of the line as argument. |
febfdc79550b
moved repository to Assembla
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parents:
diff
changeset
|
641 """ |
febfdc79550b
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parents:
diff
changeset
|
642 |
febfdc79550b
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parents:
diff
changeset
|
643 # An almost perfect copy from Cmd; however, the pseudo_raw_input portion |
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parents:
diff
changeset
|
644 # has been split out so that it can be called separately |
febfdc79550b
moved repository to Assembla
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parents:
diff
changeset
|
645 |
febfdc79550b
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parents:
diff
changeset
|
646 self.preloop() |
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parents:
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changeset
|
647 if self.use_rawinput and self.completekey: |
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parents:
diff
changeset
|
648 try: |
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parents:
diff
changeset
|
649 import readline |
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parents:
diff
changeset
|
650 self.old_completer = readline.get_completer() |
febfdc79550b
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parents:
diff
changeset
|
651 readline.set_completer(self.complete) |
febfdc79550b
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parents:
diff
changeset
|
652 readline.parse_and_bind(self.completekey+": complete") |
febfdc79550b
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parents:
diff
changeset
|
653 except ImportError: |
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parents:
diff
changeset
|
654 pass |
febfdc79550b
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parents:
diff
changeset
|
655 try: |
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parents:
diff
changeset
|
656 if intro is not None: |
febfdc79550b
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parents:
diff
changeset
|
657 self.intro = intro |
febfdc79550b
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parents:
diff
changeset
|
658 if self.intro: |
febfdc79550b
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parents:
diff
changeset
|
659 self.stdout.write(str(self.intro)+"\n") |
febfdc79550b
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parents:
diff
changeset
|
660 stop = None |
febfdc79550b
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parents:
diff
changeset
|
661 while not stop: |
febfdc79550b
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parents:
diff
changeset
|
662 if self.cmdqueue: |
febfdc79550b
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parents:
diff
changeset
|
663 line = self.cmdqueue.pop(0) |
febfdc79550b
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parents:
diff
changeset
|
664 else: |
febfdc79550b
moved repository to Assembla
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parents:
diff
changeset
|
665 line = self.pseudo_raw_input(self.prompt) |
103 | 666 if (self.echo) and (isinstance(self.stdin, file)): |
667 self.stdout.write(line + '\n') | |
0
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668 line = self.precmd(line) |
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|
669 stop = self.onecmd(line) |
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parents:
diff
changeset
|
670 stop = self.postcmd(stop, line) |
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parents:
diff
changeset
|
671 self.postloop() |
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parents:
diff
changeset
|
672 finally: |
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parents:
diff
changeset
|
673 if self.use_rawinput and self.completekey: |
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changeset
|
674 try: |
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parents:
diff
changeset
|
675 import readline |
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|
676 readline.set_completer(self.old_completer) |
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parents:
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changeset
|
677 except ImportError: |
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parents:
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changeset
|
678 pass |
43 | 679 return stop |
0
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parents:
diff
changeset
|
680 |
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parents:
diff
changeset
|
681 def do_EOF(self, arg): |
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diff
changeset
|
682 return True |
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diff
changeset
|
683 do_eof = do_EOF |
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parents:
diff
changeset
|
684 |
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diff
changeset
|
685 def showParam(self, param): |
206 | 686 any_shown = False |
133
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687 param = param.strip().lower() |
199 | 688 for p in self.settable: |
689 if p.startswith(param): | |
690 val = getattr(self, p) | |
691 self.stdout.write('%s: %s\n' % (p, str(getattr(self, p)))) | |
206 | 692 any_shown = True |
693 if not any_shown: | |
694 print "Parameter '%s' not supported (type 'show' for list of parameters)." % param | |
199 | 695 |
0
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|
696 def do_quit(self, arg): |
43 | 697 return self._STOP_AND_EXIT |
0
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parents:
diff
changeset
|
698 do_exit = do_quit |
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parents:
diff
changeset
|
699 do_q = do_quit |
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parents:
diff
changeset
|
700 |
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parents:
diff
changeset
|
701 def do_show(self, arg): |
217 | 702 '''Shows value of a parameter.''' |
0
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parents:
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changeset
|
703 if arg.strip(): |
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parents:
diff
changeset
|
704 self.showParam(arg) |
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parents:
diff
changeset
|
705 else: |
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parents:
diff
changeset
|
706 for param in self.settable: |
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parents:
diff
changeset
|
707 self.showParam(param) |
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parents:
diff
changeset
|
708 |
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parents:
diff
changeset
|
709 def do_set(self, arg): |
199 | 710 '''Sets a cmd2 parameter. Accepts abbreviated parameter names so long as there is no ambiguity. |
711 Call without arguments for a list of settable parameters with their values.''' | |
0
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changeset
|
712 try: |
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changeset
|
713 paramName, val = arg.split(None, 1) |
133
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|
714 paramName = paramName.strip().lower() |
199 | 715 hits = [paramName in p for p in self.settable] |
716 if hits.count(True) == 1: | |
717 paramName = self.settable[hits.index(True)] | |
718 currentVal = getattr(self, paramName) | |
719 if (val[0] == val[-1]) and val[0] in ("'", '"'): | |
720 val = val[1:-1] | |
721 else: | |
722 val = cast(currentVal, val) | |
723 setattr(self, paramName, val) | |
724 self.stdout.write('%s - was: %s\nnow: %s\n' % (paramName, currentVal, val)) | |
212 | 725 if currentVal != val: |
726 try: | |
727 onchange_hook = getattr(self, '_onchange_%s' % paramName) | |
728 onchange_hook(old=currentVal, new=val) | |
729 except AttributeError: | |
730 pass | |
199 | 731 else: |
732 self.do_show(paramName) | |
0
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parents:
diff
changeset
|
733 except (ValueError, AttributeError, NotSettableError), e: |
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parents:
diff
changeset
|
734 self.do_show(arg) |
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parents:
diff
changeset
|
735 |
182
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181
diff
changeset
|
736 def do_pause(self, arg): |
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181
diff
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|
737 'Displays the specified text then waits for the user to press RETURN.' |
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181
diff
changeset
|
738 raw_input(arg + '\n') |
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181
diff
changeset
|
739 |
0
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|
740 def do_shell(self, arg): |
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changeset
|
741 'execute a command as if at the OS prompt.' |
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parents:
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changeset
|
742 os.system(arg) |
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diff
changeset
|
743 |
218 | 744 def do_py(self, arg): |
220 | 745 ''' |
746 py <command>: Executes a Python command. | |
221 | 747 py: Enters interactive Python mode (end with `end py`). |
220 | 748 ''' |
218 | 749 if arg.strip(): |
750 try: | |
219 | 751 result = eval(arg, self.pystate) |
221 | 752 print repr(result) |
753 except SyntaxError: | |
754 try: | |
219 | 755 exec(arg, self.pystate) |
221 | 756 except Exception: |
757 raise | |
218 | 758 except Exception, e: |
759 print e | |
760 else: | |
221 | 761 print 'Now accepting python commands; end with `end py`' |
218 | 762 buffer = [self.pseudo_raw_input('>>> ')] |
221 | 763 while buffer[-1].lower().split()[:2] != ['end','py']: |
218 | 764 try: |
219 | 765 buf = '\n'.join(buffer) |
220 | 766 try: |
767 result = eval(buf, self.pystate) | |
768 print repr(result) | |
769 except SyntaxError: | |
219 | 770 exec(buf, self.pystate) |
218 | 771 buffer = [self.pseudo_raw_input('>>> ')] |
772 except SyntaxError: | |
773 buffer.append(self.pseudo_raw_input('... ')) | |
219 | 774 except Exception, e: |
775 print e | |
776 buffer = [self.pseudo_raw_input('>>> ')] | |
218 | 777 |
0
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parents:
diff
changeset
|
778 def do_history(self, arg): |
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parents:
diff
changeset
|
779 """history [arg]: lists past commands issued |
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parents:
diff
changeset
|
780 |
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parents:
diff
changeset
|
781 no arg -> list all |
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parents:
diff
changeset
|
782 arg is integer -> list one history item, by index |
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parents:
diff
changeset
|
783 arg is string -> string search |
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parents:
diff
changeset
|
784 arg is /enclosed in forward-slashes/ -> regular expression search |
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parents:
diff
changeset
|
785 """ |
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parents:
diff
changeset
|
786 if arg: |
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parents:
diff
changeset
|
787 history = self.history.get(arg) |
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parents:
diff
changeset
|
788 else: |
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parents:
diff
changeset
|
789 history = self.history |
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parents:
diff
changeset
|
790 for hi in history: |
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parents:
diff
changeset
|
791 self.stdout.write(hi.pr()) |
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parents:
diff
changeset
|
792 def last_matching(self, arg): |
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parents:
diff
changeset
|
793 try: |
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parents:
diff
changeset
|
794 if arg: |
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parents:
diff
changeset
|
795 return self.history.get(arg)[-1] |
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parents:
diff
changeset
|
796 else: |
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parents:
diff
changeset
|
797 return self.history[-1] |
133
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diff
changeset
|
798 except IndexError: |
0
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parents:
diff
changeset
|
799 return None |
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parents:
diff
changeset
|
800 def do_list(self, arg): |
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parents:
diff
changeset
|
801 """list [arg]: lists last command issued |
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parents:
diff
changeset
|
802 |
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parents:
diff
changeset
|
803 no arg -> list absolute last |
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parents:
diff
changeset
|
804 arg is integer -> list one history item, by index |
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parents:
diff
changeset
|
805 - arg, arg - (integer) -> list up to or after #arg |
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parents:
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changeset
|
806 arg is string -> list last command matching string search |
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parents:
diff
changeset
|
807 arg is /enclosed in forward-slashes/ -> regular expression search |
febfdc79550b
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parents:
diff
changeset
|
808 """ |
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parents:
diff
changeset
|
809 try: |
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changeset
|
810 self.stdout.write(self.last_matching(arg).pr()) |
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parents:
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changeset
|
811 except: |
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parents:
diff
changeset
|
812 pass |
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parents:
diff
changeset
|
813 do_hi = do_history |
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parents:
diff
changeset
|
814 do_l = do_list |
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parents:
diff
changeset
|
815 do_li = do_list |
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parents:
diff
changeset
|
816 |
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parents:
diff
changeset
|
817 def do_ed(self, arg): |
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changeset
|
818 """ed: edit most recent command in text editor |
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diff
changeset
|
819 ed [N]: edit numbered command from history |
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changeset
|
820 ed [filename]: edit specified file name |
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diff
changeset
|
821 |
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changeset
|
822 commands are run after editor is closed. |
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diff
changeset
|
823 "set edit (program-name)" or set EDITOR environment variable |
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diff
changeset
|
824 to control which editing program is used.""" |
febfdc79550b
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parents:
diff
changeset
|
825 if not self.editor: |
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parents:
diff
changeset
|
826 print "please use 'set editor' to specify your text editing program of choice." |
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parents:
diff
changeset
|
827 return |
207 | 828 filename = self.default_file_name |
133
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diff
changeset
|
829 if arg: |
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diff
changeset
|
830 try: |
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diff
changeset
|
831 buffer = self.last_matching(int(arg)) |
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diff
changeset
|
832 except ValueError: |
0
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parents:
diff
changeset
|
833 filename = arg |
133
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diff
changeset
|
834 buffer = '' |
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diff
changeset
|
835 else: |
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diff
changeset
|
836 buffer = self.history[-1] |
0
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parents:
diff
changeset
|
837 |
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parents:
diff
changeset
|
838 if buffer: |
202 | 839 f = open(os.path.expanduser(filename), 'w') |
0
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parents:
diff
changeset
|
840 f.write(buffer or '') |
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parents:
diff
changeset
|
841 f.close() |
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parents:
diff
changeset
|
842 |
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parents:
diff
changeset
|
843 os.system('%s %s' % (self.editor, filename)) |
48 | 844 self.do__load(filename) |
0
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parents:
diff
changeset
|
845 do_edit = do_ed |
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parents:
diff
changeset
|
846 |
91 | 847 saveparser = (pyparsing.Optional(pyparsing.Word(pyparsing.nums)^'*')("idx") + |
157 | 848 pyparsing.Optional(pyparsing.Word(legalChars + '/\\'))("fname") + |
91 | 849 pyparsing.stringEnd) |
850 def do_save(self, arg): | |
851 """`save [N] [filename.ext]` | |
852 Saves command from history to file. | |
853 N => Number of command (from history), or `*`; | |
854 most recent command if omitted""" | |
855 | |
856 try: | |
857 args = self.saveparser.parseString(arg) | |
858 except pyparsing.ParseException: | |
859 print self.do_save.__doc__ | |
860 return | |
207 | 861 fname = args.fname or self.default_file_name |
91 | 862 if args.idx == '*': |
863 saveme = '\n\n'.join(self.history[:]) | |
864 elif args.idx: | |
865 saveme = self.history[int(args.idx)-1] | |
866 else: | |
867 saveme = self.history[-1] | |
0
febfdc79550b
moved repository to Assembla
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parents:
diff
changeset
|
868 try: |
202 | 869 f = open(os.path.expanduser(fname), 'w') |
91 | 870 f.write(saveme) |
0
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
871 f.close() |
91 | 872 print 'Saved to %s' % (fname) |
0
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
873 except Exception, e: |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
874 print 'Error saving %s: %s' % (fname, str(e)) |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
875 |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
876 def do_load(self, fname=None): |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
877 """Runs command(s) from a file.""" |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
878 if fname is None: |
207 | 879 fname = self.default_file_name |
200
05c0e28306d3
expanding ~ in file names
catherine@Elli.myhome.westell.com
parents:
199
diff
changeset
|
880 fname = os.path.expanduser(fname) |
207 | 881 keepstate = Statekeeper(self, ('stdin','use_rawinput','prompt','continuation_prompt')) |
41 | 882 if isinstance(fname, file): |
883 self.stdin = fname | |
884 else: | |
0
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
885 try: |
202 | 886 self.stdin = open(os.path.expanduser(fname), 'r') |
41 | 887 except IOError, e: |
888 try: | |
202 | 889 self.stdin = open('%s.%s' % (os.path.expanduser(fname), self.defaultExtension), 'r') |
41 | 890 except IOError: |
891 print 'Problem opening file %s: \n%s' % (fname, e) | |
892 keepstate.restore() | |
893 return | |
0
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
894 self.use_rawinput = False |
207 | 895 self.prompt = self.continuation_prompt = '' |
42 | 896 stop = self.cmdloop() |
0
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
897 self.stdin.close() |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
898 keepstate.restore() |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
899 self.lastcmd = '' |
48 | 900 return (stop == self._STOP_AND_EXIT) and self._STOP_AND_EXIT |
901 do__load = do_load # avoid an unfortunate legacy use of do_load from sqlpython | |
43 | 902 |
0
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
903 def do_run(self, arg): |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
904 """run [arg]: re-runs an earlier command |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
905 |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
906 no arg -> run most recent command |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
907 arg is integer -> run one history item, by index |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
908 arg is string -> run most recent command by string search |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
909 arg is /enclosed in forward-slashes/ -> run most recent by regex |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
910 """ |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
911 'run [N]: runs the SQL that was run N commands ago' |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
912 runme = self.last_matching(arg) |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
913 print runme |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
914 if runme: |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
915 runme = self.precmd(runme) |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
916 stop = self.onecmd(runme) |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
917 stop = self.postcmd(stop, runme) |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
918 do_r = do_run |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
919 |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
920 def fileimport(self, statement, source): |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
921 try: |
202 | 922 f = open(os.path.expanduser(source)) |
0
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
923 except IOError: |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
924 self.stdout.write("Couldn't read from file %s\n" % source) |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
925 return '' |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
926 data = f.read() |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
927 f.close() |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
928 return data |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
929 |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
930 class HistoryItem(str): |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
931 def __init__(self, instr): |
121
fe432d010ecc
going to attempt 2.4 and 2.6 compatibility
catherine@dellzilla
parents:
119
diff
changeset
|
932 str.__init__(self) |
0
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
933 self.lowercase = self.lower() |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
934 self.idx = None |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
935 def pr(self): |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
936 return '-------------------------[%d]\n%s\n' % (self.idx, str(self)) |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
937 |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
938 class History(list): |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
939 rangeFrom = re.compile(r'^([\d])+\s*\-$') |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
940 def append(self, new): |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
941 new = HistoryItem(new) |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
942 list.append(self, new) |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
943 new.idx = len(self) |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
944 def extend(self, new): |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
945 for n in new: |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
946 self.append(n) |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
947 def get(self, getme): |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
948 try: |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
949 getme = int(getme) |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
950 if getme < 0: |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
951 return self[:(-1 * getme)] |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
952 else: |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
953 return [self[getme-1]] |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
954 except IndexError: |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
955 return [] |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
956 except (ValueError, TypeError): |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
957 getme = getme.strip() |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
958 mtch = self.rangeFrom.search(getme) |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
959 if mtch: |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
960 return self[(int(mtch.group(1))-1):] |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
961 if getme.startswith(r'/') and getme.endswith(r'/'): |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
962 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
|
963 def isin(hi): |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
964 return finder.search(hi) |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
965 else: |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
966 def isin(hi): |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
967 return (getme.lower() in hi.lowercase) |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
968 return [itm for itm in self if isin(itm)] |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
969 |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
970 class NotSettableError(Exception): |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
971 pass |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
972 |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
973 def cast(current, new): |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
974 """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
|
975 typ = type(current) |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
976 if typ == bool: |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
977 try: |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
978 return bool(int(new)) |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
979 except ValueError, TypeError: |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
980 pass |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
981 try: |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
982 new = new.lower() |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
983 except: |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
984 pass |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
985 if (new=='on') or (new[0] in ('y','t')): |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
986 return True |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
987 if (new=='off') or (new[0] in ('n','f')): |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
988 return False |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
989 else: |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
990 try: |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
991 return typ(new) |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
992 except: |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
993 pass |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
994 print "Problem setting parameter (now %s) to %s; incorrect type?" % (current, new) |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
995 return current |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
996 |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
997 class Statekeeper(object): |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
998 def __init__(self, obj, attribs): |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
999 self.obj = obj |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
1000 self.attribs = attribs |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
1001 self.save() |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
1002 def save(self): |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
1003 for attrib in self.attribs: |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
1004 setattr(self, attrib, getattr(self.obj, attrib)) |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
1005 def restore(self): |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
1006 for attrib in self.attribs: |
febfdc79550b
moved repository to Assembla
catherine@DellZilla.myhome.westell.com
parents:
diff
changeset
|
1007 setattr(self.obj, attrib, getattr(self, attrib)) |
79
f583663c610f
switch to pyparsing worked
catherine@Elli.myhome.westell.com
parents:
56
diff
changeset
|
1008 |
104 | 1009 class Borg(object): |
1010 '''All instances of any Borg subclass will share state. | |
1011 from Python Cookbook, 2nd Ed., recipe 6.16''' | |
1012 _shared_state = {} | |
1013 def __new__(cls, *a, **k): | |
1014 obj = object.__new__(cls, *a, **k) | |
1015 obj.__dict__ = cls._shared_state | |
1016 return obj | |
1017 | |
1018 class OutputTrap(Borg): | |
1019 '''Instantiate an OutputTrap to divert/capture ALL stdout output. For use in unit testing. | |
1020 Call `tearDown()` to return to normal output.''' | |
1021 def __init__(self): | |
105 | 1022 self.old_stdout = sys.stdout |
104 | 1023 self.trap = tempfile.TemporaryFile() |
1024 sys.stdout = self.trap | |
105 | 1025 def read(self): |
104 | 1026 self.trap.seek(0) |
1027 result = self.trap.read() | |
105 | 1028 self.trap.truncate(0) |
1029 return result.strip('\x00') | |
104 | 1030 def tearDown(self): |
1031 sys.stdout = self.old_stdout | |
1032 | |
1033 class Cmd2TestCase(unittest.TestCase): | |
1034 '''Subclass this, setting CmdApp and transcriptFileName, to make a unittest.TestCase class | |
109 | 1035 that will execute the commands in transcriptFileName and expect the results shown. |
1036 See example.py''' | |
104 | 1037 CmdApp = None |
1038 transcriptFileName = '' | |
1039 def setUp(self): | |
1040 if self.CmdApp: | |
105 | 1041 self.outputTrap = OutputTrap() |
104 | 1042 self.cmdapp = self.CmdApp() |
173 | 1043 try: |
202 | 1044 tfile = open(os.path.expanduser(self.transcriptFileName)) |
180 | 1045 self.transcript = iter(tfile.readlines()) |
173 | 1046 tfile.close() |
1047 except IOError: | |
1048 self.transcript = [] | |
181
24eff658997b
accepts wildcards in tests, maybe?
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1049 def assertEqualEnough(self, got, expected, message): |
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1050 got = got.strip().splitlines() |
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1051 expected = expected.strip().splitlines() |
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1052 self.assertEqual(len(got), len(expected), message) |
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1053 for (linegot, lineexpected) in zip(got, expected): |
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1054 matchme = re.escape(lineexpected.strip()).replace('\\*', '.*'). \ |
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1055 replace('\\ ', ' ') |
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1056 self.assert_(re.match(matchme, linegot.strip()), message) |
104 | 1057 def testall(self): |
180 | 1058 if self.CmdApp: |
1059 lineNum = 0 | |
1060 try: | |
1061 line = self.transcript.next() | |
1062 while True: | |
1063 while not line.startswith(self.cmdapp.prompt): | |
1064 line = self.transcript.next() | |
1065 command = [line[len(self.cmdapp.prompt):]] | |
1066 line = self.transcript.next() | |
207 | 1067 while line.startswith(self.cmdapp.continuation_prompt): |
1068 command.append(line[len(self.cmdapp.continuation_prompt):]) | |
180 | 1069 line = self.transcript.next() |
1070 command = ''.join(command) | |
1071 self.cmdapp.onecmd(command) | |
1072 result = self.outputTrap.read() | |
1073 if line.startswith(self.cmdapp.prompt): | |
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1074 self.assertEqualEnough(result.strip(), '', |
180 | 1075 '\nFile %s, line %d\nCommand was:\n%s\nExpected: (nothing) \nGot:\n%s\n' % |
1076 (self.transcriptFileName, lineNum, command, result)) | |
1077 continue | |
1078 expected = [] | |
1079 while not line.startswith(self.cmdapp.prompt): | |
1080 expected.append(line) | |
1081 line = self.transcript.next() | |
1082 expected = ''.join(expected) | |
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1083 self.assertEqualEnough(expected.strip(), result.strip(), |
180 | 1084 '\nFile %s, line %d\nCommand was:\n%s\nExpected:\n%s\nGot:\n%s\n' % |
1085 (self.transcriptFileName, lineNum, command, expected, result)) | |
1086 # this needs to account for a line-by-line strip()ping | |
1087 except StopIteration: | |
1088 pass | |
1089 # catch the final output? | |
104 | 1090 def tearDown(self): |
1091 if self.CmdApp: | |
1092 self.outputTrap.tearDown() | |
1093 | |
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1094 if __name__ == '__main__': |
158 | 1095 doctest.testmod(optionflags = doctest.NORMALIZE_WHITESPACE) |
1096 #c = Cmd() |