Mercurial > sqlpython

annotate cmd2.py @ 31:5e2f6ec2e383

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load so close!
author devlinjs@FA7CZA6N1254998.wrightpatterson.afmc.ds.af.mil
date Fri, 21 Dec 2007 15:06:13 -0500
parents 2739250177ed
children ebefe2d57e3b
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 Searchable command history
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4 Multi-line commands
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5 Case-insensitive commands
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6 Special-character shortcut commands
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7 Load commands from file
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8 Settable environment parameters
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9
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10 still to do:
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11 edit
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12 run
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13 >
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14 """
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15 import cmd, re, os, sys
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16
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17 class Cmd(cmd.Cmd):
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18 caseInsensitive = True
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19 multilineCommands = []
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20 continuationPrompt = '> '
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21 shortcuts = {'?': 'help', '!': 'shell', '@': 'load'}
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22 excludeFromHistory = '''run r list l history hi ed li eof'''.split()
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23 defaultExtension = 'txt'
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24 defaultFileName = 'command.txt'
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25 editor = os.environ.get('EDITOR')
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26 if not editor:
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27 if sys.platform[:3] == 'win':
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28 editor = 'notepad'
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29 settable = ['prompt', 'continuationPrompt', 'defaultFileName', 'editor', 'caseInsensitive']
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30 terminators = ';\n'
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31 def do_cmdenvironment(self, args):
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32 self.stdout.write("""
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33 Commands are %(casesensitive)scase-sensitive.
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34 Commands may be terminated with: %(terminators)s
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35 Settable parameters: %(settable)s
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36 """ %
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37 { 'casesensitive': 'not ' if self.caseInsensitive else '',
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38 'terminators': ' '.join(self.terminators),
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39 'settable': ' '.join(self.settable)
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40 })
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41
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42 def __init__(self, *args, **kwargs):
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43 cmd.Cmd.__init__(self, *args, **kwargs)
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44 self.history = History()
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45
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46 def precmd(self, line):
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47 """Hook method executed just before the command line is
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48 interpreted, but after the input prompt is generated and issued.
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49
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50 Makes commands case-insensitive (but unfortunately does not alter command completion).
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51 """
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52 try:
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53 (command, args) = line.split(None,1)
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54 except ValueError:
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55 (command, args) = line, ''
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56 if self.caseInsensitive:
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57 command = command.lower()
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58 statement = ' '.join([command, args])
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59 if (not self.multilineCommands) or (command not in self.multilineCommands):
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60 return statement
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61 return self.finishStatement(statement)
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62
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63 def postcmd(self, stop, line):
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64 """Hook method executed just after a command dispatch is finished."""
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65 try:
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66 command = line.split(None,1)[0].lower()
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67 if command not in self.excludeFromHistory:
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68 self.history.append(line)
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69 finally:
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70 return stop
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71
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72 def finishStatement(self, firstline):
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73 statement = firstline
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74 while not self.statementHasEnded(statement):
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75 inp = self.pseudo_raw_input(self.continuationPrompt)
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76 statement = '%s\n%s' % (statement, inp)
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77 return statement
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78 # assembling a list of lines and joining them at the end would be faster,
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79 # but statementHasEnded needs a string arg; anyway, we're getting
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80 # user input and users are slow.
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81
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82 def pseudo_raw_input(self, prompt):
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83 """copied from cmd's cmdloop; like raw_input, but accounts for changed stdin, stdout"""
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84
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85 if self.use_rawinput:
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86 try:
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87 line = raw_input(prompt)
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88 except EOFError:
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89 line = 'EOF'
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90 else:
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91 self.stdout.write(prompt)
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92 self.stdout.flush()
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93 line = self.stdin.readline()
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94 if not len(line):
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95 line = 'EOF'
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96 else:
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97 line = line[:-1] # chop \n
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98 return line
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99
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100 def do_EOF(self, arg):
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101 return True
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102 do_eof = do_EOF
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103
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104 statementEndPattern = re.compile(r'([%s]\s*)|(EOF)$' % terminators)
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105 def statementHasEnded(self, lines):
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106 return bool(self.statementEndPattern.search(lines))
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107
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108 def clean(self, s):
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109 """cleans up a string"""
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110 if self.caseInsensitive:
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111 return s.strip().lower()
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112 return s.strip()
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113
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114 def parseline(self, line):
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115 """Parse the line into a command name and a string containing
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116 the arguments. Returns a tuple containing (command, args, line).
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117 'command' and 'args' may be None if the line couldn't be parsed.
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118 """
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119 line = line.strip()
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120 if not line:
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121 return None, None, line
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122 shortcut = self.shortcuts.get(line[0])
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123 if shortcut and hasattr(self, 'do_%s' % shortcut):
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124 line = '%s %s' % (shortcut, line[1:])
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125 i, n = 0, len(line)
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126 while i < n and line[i] in self.identchars: i = i+1
26
bb3fb24b6f5f settables ironed out
devlinjs@FA7CZA6N1254998.wrightpatterson.afmc.ds.af.mil
parents: 25
diff changeset
127 cmd, arg = line[:i], line[i:].strip().strip(self.terminators)
20
d6d64c2e3b98 shortcuts
devlinjs@FA7CZA6N1254998.wrightpatterson.afmc.ds.af.mil
parents: 19
diff changeset
128 return cmd, arg, line
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devlinjs@FA7CZA6N1254998.wrightpatterson.afmc.ds.af.mil
parents: 19
diff changeset
129
25
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devlinjs@FA7CZA6N1254998.wrightpatterson.afmc.ds.af.mil
parents: 24
diff changeset
130 def showParam(self, param):
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parents: 24
diff changeset
131 param = self.clean(param)
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devlinjs@FA7CZA6N1254998.wrightpatterson.afmc.ds.af.mil
parents: 24
diff changeset
132 if param in self.settable:
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devlinjs@FA7CZA6N1254998.wrightpatterson.afmc.ds.af.mil
parents: 24
diff changeset
133 val = getattr(self, param)
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devlinjs@FA7CZA6N1254998.wrightpatterson.afmc.ds.af.mil
parents: 24
diff changeset
134 self.stdout.write('%s: %s\n' % (param, str(getattr(self, param))))
c99853267a44 introducing parameters
devlinjs@FA7CZA6N1254998.wrightpatterson.afmc.ds.af.mil
parents: 24
diff changeset
135
c99853267a44 introducing parameters
devlinjs@FA7CZA6N1254998.wrightpatterson.afmc.ds.af.mil
parents: 24
diff changeset
136 def do_show(self, arg):
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devlinjs@FA7CZA6N1254998.wrightpatterson.afmc.ds.af.mil
parents: 24
diff changeset
137 'Shows value of a parameter'
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devlinjs@FA7CZA6N1254998.wrightpatterson.afmc.ds.af.mil
parents: 24
diff changeset
138 if arg.strip():
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devlinjs@FA7CZA6N1254998.wrightpatterson.afmc.ds.af.mil
parents: 24
diff changeset
139 self.showParam(arg)
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devlinjs@FA7CZA6N1254998.wrightpatterson.afmc.ds.af.mil
parents: 24
diff changeset
140 else:
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devlinjs@FA7CZA6N1254998.wrightpatterson.afmc.ds.af.mil
parents: 24
diff changeset
141 for param in self.settable:
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devlinjs@FA7CZA6N1254998.wrightpatterson.afmc.ds.af.mil
parents: 24
diff changeset
142 self.showParam(param)
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parents: 24
diff changeset
143
c99853267a44 introducing parameters
devlinjs@FA7CZA6N1254998.wrightpatterson.afmc.ds.af.mil
parents: 24
diff changeset
144 def do_set(self, arg):
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devlinjs@FA7CZA6N1254998.wrightpatterson.afmc.ds.af.mil
parents: 24
diff changeset
145 'Sets a parameter'
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devlinjs@FA7CZA6N1254998.wrightpatterson.afmc.ds.af.mil
parents: 24
diff changeset
146 try:
c99853267a44 introducing parameters
devlinjs@FA7CZA6N1254998.wrightpatterson.afmc.ds.af.mil
parents: 24
diff changeset
147 paramName, val = arg.split(None, 1)
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devlinjs@FA7CZA6N1254998.wrightpatterson.afmc.ds.af.mil
parents: 24
diff changeset
148 paramName = self.clean(paramName)
c99853267a44 introducing parameters
devlinjs@FA7CZA6N1254998.wrightpatterson.afmc.ds.af.mil
parents: 24
diff changeset
149 if paramName not in self.settable:
c99853267a44 introducing parameters
devlinjs@FA7CZA6N1254998.wrightpatterson.afmc.ds.af.mil
parents: 24
diff changeset
150 raise NotSettableError
c99853267a44 introducing parameters
devlinjs@FA7CZA6N1254998.wrightpatterson.afmc.ds.af.mil
parents: 24
diff changeset
151 currentVal = getattr(self, paramName)
26
bb3fb24b6f5f settables ironed out
devlinjs@FA7CZA6N1254998.wrightpatterson.afmc.ds.af.mil
parents: 25
diff changeset
152 val = cast(currentVal, val.strip(self.terminators))
25
c99853267a44 introducing parameters
devlinjs@FA7CZA6N1254998.wrightpatterson.afmc.ds.af.mil
parents: 24
diff changeset
153 setattr(self, paramName, val)
26
bb3fb24b6f5f settables ironed out
devlinjs@FA7CZA6N1254998.wrightpatterson.afmc.ds.af.mil
parents: 25
diff changeset
154 self.stdout.write('%s - was: %s\nnow: %s\n' % (paramName, currentVal, val))
30
2739250177ed load fixed?
devlinjs@FA7CZA6N1254998.wrightpatterson.afmc.ds.af.mil
parents: 29
diff changeset
155 except (ValueError, AttributeError, NotSettableError), e:
25
c99853267a44 introducing parameters
devlinjs@FA7CZA6N1254998.wrightpatterson.afmc.ds.af.mil
parents: 24
diff changeset
156 self.do_show(arg)
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parents: 24
diff changeset
157
20
d6d64c2e3b98 shortcuts
devlinjs@FA7CZA6N1254998.wrightpatterson.afmc.ds.af.mil
parents: 19
diff changeset
158 def do_shell(self, arg):
d6d64c2e3b98 shortcuts
devlinjs@FA7CZA6N1254998.wrightpatterson.afmc.ds.af.mil
parents: 19
diff changeset
159 'execute a command as if at the OS prompt.'
d6d64c2e3b98 shortcuts
devlinjs@FA7CZA6N1254998.wrightpatterson.afmc.ds.af.mil
parents: 19
diff changeset
160 os.system(arg)
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devlinjs@FA7CZA6N1254998.wrightpatterson.afmc.ds.af.mil
parents: 19
diff changeset
161
16
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devlinjs@FA7CZA6N1254998.wrightpatterson.afmc.ds.af.mil
parents:
diff changeset
162 def do_history(self, arg):
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devlinjs@FA7CZA6N1254998.wrightpatterson.afmc.ds.af.mil
parents:
diff changeset
163 """history [arg]: lists past commands issued
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devlinjs@FA7CZA6N1254998.wrightpatterson.afmc.ds.af.mil
parents:
diff changeset
164
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devlinjs@FA7CZA6N1254998.wrightpatterson.afmc.ds.af.mil
parents:
diff changeset
165 no arg -> list all
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devlinjs@FA7CZA6N1254998.wrightpatterson.afmc.ds.af.mil
parents:
diff changeset
166 arg is integer -> list one history item, by index
2776755a3a7e beginning separation of cmd2
devlinjs@FA7CZA6N1254998.wrightpatterson.afmc.ds.af.mil
parents:
diff changeset
167 arg is string -> string search
2776755a3a7e beginning separation of cmd2
devlinjs@FA7CZA6N1254998.wrightpatterson.afmc.ds.af.mil
parents:
diff changeset
168 arg is /enclosed in forward-slashes/ -> regular expression search
2776755a3a7e beginning separation of cmd2
devlinjs@FA7CZA6N1254998.wrightpatterson.afmc.ds.af.mil
parents:
diff changeset
169 """
2776755a3a7e beginning separation of cmd2
devlinjs@FA7CZA6N1254998.wrightpatterson.afmc.ds.af.mil
parents:
diff changeset
170 if arg:
2776755a3a7e beginning separation of cmd2
devlinjs@FA7CZA6N1254998.wrightpatterson.afmc.ds.af.mil
parents:
diff changeset
171 history = self.history.get(arg)
2776755a3a7e beginning separation of cmd2
devlinjs@FA7CZA6N1254998.wrightpatterson.afmc.ds.af.mil
parents:
diff changeset
172 else:
2776755a3a7e beginning separation of cmd2
devlinjs@FA7CZA6N1254998.wrightpatterson.afmc.ds.af.mil
parents:
diff changeset
173 history = self.history
2776755a3a7e beginning separation of cmd2
devlinjs@FA7CZA6N1254998.wrightpatterson.afmc.ds.af.mil
parents:
diff changeset
174 for hi in history:
21
8b55aaa52ce9 working on load, and preserving stdin/out
devlinjs@FA7CZA6N1254998.wrightpatterson.afmc.ds.af.mil
parents: 20
diff changeset
175 self.stdout.write(hi.pr())
16
2776755a3a7e beginning separation of cmd2
devlinjs@FA7CZA6N1254998.wrightpatterson.afmc.ds.af.mil
parents:
diff changeset
176 def last_matching(self, arg):
2776755a3a7e beginning separation of cmd2
devlinjs@FA7CZA6N1254998.wrightpatterson.afmc.ds.af.mil
parents:
diff changeset
177 try:
2776755a3a7e beginning separation of cmd2
devlinjs@FA7CZA6N1254998.wrightpatterson.afmc.ds.af.mil
parents:
diff changeset
178 if arg:
2776755a3a7e beginning separation of cmd2
devlinjs@FA7CZA6N1254998.wrightpatterson.afmc.ds.af.mil
parents:
diff changeset
179 return self.history.get(arg)[-1]
2776755a3a7e beginning separation of cmd2
devlinjs@FA7CZA6N1254998.wrightpatterson.afmc.ds.af.mil
parents:
diff changeset
180 else:
2776755a3a7e beginning separation of cmd2
devlinjs@FA7CZA6N1254998.wrightpatterson.afmc.ds.af.mil
parents:
diff changeset
181 return self.history[-1]
2776755a3a7e beginning separation of cmd2
devlinjs@FA7CZA6N1254998.wrightpatterson.afmc.ds.af.mil
parents:
diff changeset
182 except:
2776755a3a7e beginning separation of cmd2
devlinjs@FA7CZA6N1254998.wrightpatterson.afmc.ds.af.mil
parents:
diff changeset
183 return None
2776755a3a7e beginning separation of cmd2
devlinjs@FA7CZA6N1254998.wrightpatterson.afmc.ds.af.mil
parents:
diff changeset
184 def do_list(self, arg):
2776755a3a7e beginning separation of cmd2
devlinjs@FA7CZA6N1254998.wrightpatterson.afmc.ds.af.mil
parents:
diff changeset
185 """list [arg]: lists last command issued
2776755a3a7e beginning separation of cmd2
devlinjs@FA7CZA6N1254998.wrightpatterson.afmc.ds.af.mil
parents:
diff changeset
186
2776755a3a7e beginning separation of cmd2
devlinjs@FA7CZA6N1254998.wrightpatterson.afmc.ds.af.mil
parents:
diff changeset
187 no arg -> list absolute last
2776755a3a7e beginning separation of cmd2
devlinjs@FA7CZA6N1254998.wrightpatterson.afmc.ds.af.mil
parents:
diff changeset
188 arg is integer -> list one history item, by index
2776755a3a7e beginning separation of cmd2
devlinjs@FA7CZA6N1254998.wrightpatterson.afmc.ds.af.mil
parents:
diff changeset
189 - arg, arg - (integer) -> list up to or after #arg
2776755a3a7e beginning separation of cmd2
devlinjs@FA7CZA6N1254998.wrightpatterson.afmc.ds.af.mil
parents:
diff changeset
190 arg is string -> list last command matching string search
2776755a3a7e beginning separation of cmd2
devlinjs@FA7CZA6N1254998.wrightpatterson.afmc.ds.af.mil
parents:
diff changeset
191 arg is /enclosed in forward-slashes/ -> regular expression search
2776755a3a7e beginning separation of cmd2
devlinjs@FA7CZA6N1254998.wrightpatterson.afmc.ds.af.mil
parents:
diff changeset
192 """
2776755a3a7e beginning separation of cmd2
devlinjs@FA7CZA6N1254998.wrightpatterson.afmc.ds.af.mil
parents:
diff changeset
193 try:
21
8b55aaa52ce9 working on load, and preserving stdin/out
devlinjs@FA7CZA6N1254998.wrightpatterson.afmc.ds.af.mil
parents: 20
diff changeset
194 self.stdout.write(self.last_matching(arg).pr())
16
2776755a3a7e beginning separation of cmd2
devlinjs@FA7CZA6N1254998.wrightpatterson.afmc.ds.af.mil
parents:
diff changeset
195 except:
2776755a3a7e beginning separation of cmd2
devlinjs@FA7CZA6N1254998.wrightpatterson.afmc.ds.af.mil
parents:
diff changeset
196 pass
2776755a3a7e beginning separation of cmd2
devlinjs@FA7CZA6N1254998.wrightpatterson.afmc.ds.af.mil
parents:
diff changeset
197 do_hi = do_history
2776755a3a7e beginning separation of cmd2
devlinjs@FA7CZA6N1254998.wrightpatterson.afmc.ds.af.mil
parents:
diff changeset
198 do_l = do_list
2776755a3a7e beginning separation of cmd2
devlinjs@FA7CZA6N1254998.wrightpatterson.afmc.ds.af.mil
parents:
diff changeset
199 do_li = do_list
21
8b55aaa52ce9 working on load, and preserving stdin/out
devlinjs@FA7CZA6N1254998.wrightpatterson.afmc.ds.af.mil
parents: 20
diff changeset
200
27
ca6f34be3397 working on ed
devlinjs@FA7CZA6N1254998.wrightpatterson.afmc.ds.af.mil
parents: 26
diff changeset
201 def do_ed(self, arg):
ca6f34be3397 working on ed
devlinjs@FA7CZA6N1254998.wrightpatterson.afmc.ds.af.mil
parents: 26
diff changeset
202 'ed [N]: brings up SQL from N commands ago in text editor, and puts result in SQL buffer.'
ca6f34be3397 working on ed
devlinjs@FA7CZA6N1254998.wrightpatterson.afmc.ds.af.mil
parents: 26
diff changeset
203 if not self.editor:
30
2739250177ed load fixed?
devlinjs@FA7CZA6N1254998.wrightpatterson.afmc.ds.af.mil
parents: 29
diff changeset
204 print "please use 'set editor' to specify your text editing program of choice."
27
ca6f34be3397 working on ed
devlinjs@FA7CZA6N1254998.wrightpatterson.afmc.ds.af.mil
parents: 26
diff changeset
205 return
ca6f34be3397 working on ed
devlinjs@FA7CZA6N1254998.wrightpatterson.afmc.ds.af.mil
parents: 26
diff changeset
206 buffer = self.last_matching(arg)
ca6f34be3397 working on ed
devlinjs@FA7CZA6N1254998.wrightpatterson.afmc.ds.af.mil
parents: 26
diff changeset
207 f = open(self.defaultFileName, 'w')
31
5e2f6ec2e383 load so close!
devlinjs@FA7CZA6N1254998.wrightpatterson.afmc.ds.af.mil
parents: 30
diff changeset
208 f.write(buffer or '')
27
ca6f34be3397 working on ed
devlinjs@FA7CZA6N1254998.wrightpatterson.afmc.ds.af.mil
parents: 26
diff changeset
209 f.close()
ca6f34be3397 working on ed
devlinjs@FA7CZA6N1254998.wrightpatterson.afmc.ds.af.mil
parents: 26
diff changeset
210 os.system('%s %s' % (self.editor, self.defaultFileName))
30
2739250177ed load fixed?
devlinjs@FA7CZA6N1254998.wrightpatterson.afmc.ds.af.mil
parents: 29
diff changeset
211 self.do_load(self.defaultFileName)
27
ca6f34be3397 working on ed
devlinjs@FA7CZA6N1254998.wrightpatterson.afmc.ds.af.mil
parents: 26
diff changeset
212 do_edit = do_ed
ca6f34be3397 working on ed
devlinjs@FA7CZA6N1254998.wrightpatterson.afmc.ds.af.mil
parents: 26
diff changeset
213
ca6f34be3397 working on ed
devlinjs@FA7CZA6N1254998.wrightpatterson.afmc.ds.af.mil
parents: 26
diff changeset
214 def do_save(self, fname=None):
ca6f34be3397 working on ed
devlinjs@FA7CZA6N1254998.wrightpatterson.afmc.ds.af.mil
parents: 26
diff changeset
215 """Saves most recent command to a file."""
ca6f34be3397 working on ed
devlinjs@FA7CZA6N1254998.wrightpatterson.afmc.ds.af.mil
parents: 26
diff changeset
216
ca6f34be3397 working on ed
devlinjs@FA7CZA6N1254998.wrightpatterson.afmc.ds.af.mil
parents: 26
diff changeset
217 if fname is None:
ca6f34be3397 working on ed
devlinjs@FA7CZA6N1254998.wrightpatterson.afmc.ds.af.mil
parents: 26
diff changeset
218 fname = self.defaultFileName
ca6f34be3397 working on ed
devlinjs@FA7CZA6N1254998.wrightpatterson.afmc.ds.af.mil
parents: 26
diff changeset
219 try:
ca6f34be3397 working on ed
devlinjs@FA7CZA6N1254998.wrightpatterson.afmc.ds.af.mil
parents: 26
diff changeset
220 f = open(fname, 'w')
ca6f34be3397 working on ed
devlinjs@FA7CZA6N1254998.wrightpatterson.afmc.ds.af.mil
parents: 26
diff changeset
221 f.write(self.history[-1])
ca6f34be3397 working on ed
devlinjs@FA7CZA6N1254998.wrightpatterson.afmc.ds.af.mil
parents: 26
diff changeset
222 f.close()
ca6f34be3397 working on ed
devlinjs@FA7CZA6N1254998.wrightpatterson.afmc.ds.af.mil
parents: 26
diff changeset
223 except Exception, e:
ca6f34be3397 working on ed
devlinjs@FA7CZA6N1254998.wrightpatterson.afmc.ds.af.mil
parents: 26
diff changeset
224 print 'Error saving %s: %s' % (fname, str(e))
ca6f34be3397 working on ed
devlinjs@FA7CZA6N1254998.wrightpatterson.afmc.ds.af.mil
parents: 26
diff changeset
225
ca6f34be3397 working on ed
devlinjs@FA7CZA6N1254998.wrightpatterson.afmc.ds.af.mil
parents: 26
diff changeset
226 def do_load(self, fname=None):
21
8b55aaa52ce9 working on load, and preserving stdin/out
devlinjs@FA7CZA6N1254998.wrightpatterson.afmc.ds.af.mil
parents: 20
diff changeset
227 """Runs command(s) from a file."""
27
ca6f34be3397 working on ed
devlinjs@FA7CZA6N1254998.wrightpatterson.afmc.ds.af.mil
parents: 26
diff changeset
228 if fname is None:
ca6f34be3397 working on ed
devlinjs@FA7CZA6N1254998.wrightpatterson.afmc.ds.af.mil
parents: 26
diff changeset
229 fname = self.defaultFileName
24
7a89805a47b1 load cleaned up
devlinjs@FA7CZA6N1254998.wrightpatterson.afmc.ds.af.mil
parents: 23
diff changeset
230 keepstate = Statekeeper(self, ('stdin','use_rawinput','prompt','continuationPrompt'))
21
8b55aaa52ce9 working on load, and preserving stdin/out
devlinjs@FA7CZA6N1254998.wrightpatterson.afmc.ds.af.mil
parents: 20
diff changeset
231 try:
8b55aaa52ce9 working on load, and preserving stdin/out
devlinjs@FA7CZA6N1254998.wrightpatterson.afmc.ds.af.mil
parents: 20
diff changeset
232 self.stdin = open(fname, 'r')
8b55aaa52ce9 working on load, and preserving stdin/out
devlinjs@FA7CZA6N1254998.wrightpatterson.afmc.ds.af.mil
parents: 20
diff changeset
233 except IOError, e:
8b55aaa52ce9 working on load, and preserving stdin/out
devlinjs@FA7CZA6N1254998.wrightpatterson.afmc.ds.af.mil
parents: 20
diff changeset
234 try:
8b55aaa52ce9 working on load, and preserving stdin/out
devlinjs@FA7CZA6N1254998.wrightpatterson.afmc.ds.af.mil
parents: 20
diff changeset
235 self.stdin = open('%s.%s' % (fname, self.defaultExtension), 'r')
29
a6f68b25ae16 load is perfect
devlinjs@FA7CZA6N1254998.wrightpatterson.afmc.ds.af.mil
parents: 27
diff changeset
236 except IOError:
21
8b55aaa52ce9 working on load, and preserving stdin/out
devlinjs@FA7CZA6N1254998.wrightpatterson.afmc.ds.af.mil
parents: 20
diff changeset
237 print 'Problem opening file %s: \n%s' % (fname, e)
29
a6f68b25ae16 load is perfect
devlinjs@FA7CZA6N1254998.wrightpatterson.afmc.ds.af.mil
parents: 27
diff changeset
238 keepstate.restore()
a6f68b25ae16 load is perfect
devlinjs@FA7CZA6N1254998.wrightpatterson.afmc.ds.af.mil
parents: 27
diff changeset
239 return
a6f68b25ae16 load is perfect
devlinjs@FA7CZA6N1254998.wrightpatterson.afmc.ds.af.mil
parents: 27
diff changeset
240 self.use_rawinput = False
a6f68b25ae16 load is perfect
devlinjs@FA7CZA6N1254998.wrightpatterson.afmc.ds.af.mil
parents: 27
diff changeset
241 self.prompt = self.continuationPrompt = ''
a6f68b25ae16 load is perfect
devlinjs@FA7CZA6N1254998.wrightpatterson.afmc.ds.af.mil
parents: 27
diff changeset
242 self.cmdloop()
a6f68b25ae16 load is perfect
devlinjs@FA7CZA6N1254998.wrightpatterson.afmc.ds.af.mil
parents: 27
diff changeset
243 self.stdin.close()
a6f68b25ae16 load is perfect
devlinjs@FA7CZA6N1254998.wrightpatterson.afmc.ds.af.mil
parents: 27
diff changeset
244 keepstate.restore()
a6f68b25ae16 load is perfect
devlinjs@FA7CZA6N1254998.wrightpatterson.afmc.ds.af.mil
parents: 27
diff changeset
245 self.lastcmd = ''
24
7a89805a47b1 load cleaned up
devlinjs@FA7CZA6N1254998.wrightpatterson.afmc.ds.af.mil
parents: 23
diff changeset
246
20
d6d64c2e3b98 shortcuts
devlinjs@FA7CZA6N1254998.wrightpatterson.afmc.ds.af.mil
parents: 19
diff changeset
247 class HistoryItem(str):
d6d64c2e3b98 shortcuts
devlinjs@FA7CZA6N1254998.wrightpatterson.afmc.ds.af.mil
parents: 19
diff changeset
248 def __init__(self, instr):
d6d64c2e3b98 shortcuts
devlinjs@FA7CZA6N1254998.wrightpatterson.afmc.ds.af.mil
parents: 19
diff changeset
249 str.__init__(self, instr)
d6d64c2e3b98 shortcuts
devlinjs@FA7CZA6N1254998.wrightpatterson.afmc.ds.af.mil
parents: 19
diff changeset
250 self.lowercase = self.lower()
d6d64c2e3b98 shortcuts
devlinjs@FA7CZA6N1254998.wrightpatterson.afmc.ds.af.mil
parents: 19
diff changeset
251 self.idx = None
d6d64c2e3b98 shortcuts
devlinjs@FA7CZA6N1254998.wrightpatterson.afmc.ds.af.mil
parents: 19
diff changeset
252 def pr(self):
21
8b55aaa52ce9 working on load, and preserving stdin/out
devlinjs@FA7CZA6N1254998.wrightpatterson.afmc.ds.af.mil
parents: 20
diff changeset
253 return '-------------------------[%d]\n%s\n' % (self.idx, str(self))
20
d6d64c2e3b98 shortcuts
devlinjs@FA7CZA6N1254998.wrightpatterson.afmc.ds.af.mil
parents: 19
diff changeset
254
d6d64c2e3b98 shortcuts
devlinjs@FA7CZA6N1254998.wrightpatterson.afmc.ds.af.mil
parents: 19
diff changeset
255 class History(list):
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256 rangeFrom = re.compile(r'^([\d])+\s*\-$')
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257 def append(self, new):
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258 new = HistoryItem(new)
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259 list.append(self, new)
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260 new.idx = len(self)
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261 def extend(self, new):
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262 for n in new:
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263 self.append(n)
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264 def get(self, getme):
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265 try:
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266 getme = int(getme)
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267 if getme < 0:
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268 return self[:(-1 * getme)]
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269 else:
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270 return [self[getme-1]]
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271 except IndexError:
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272 return []
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273 except (ValueError, TypeError):
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274 getme = getme.strip()
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275 mtch = self.rangeFrom.search(getme)
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276 if mtch:
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277 return self[(int(mtch.group(1))-1):]
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278 if getme.startswith(r'/') and getme.endswith(r'/'):
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279 finder = re.compile(getme[1:-1], re.DOTALL | re.MULTILINE | re.IGNORECASE)
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280 def isin(hi):
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281 return finder.search(hi)
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282 else:
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283 def isin(hi):
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284 return (getme.lower() in hi.lowercase)
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285 return [itm for itm in self if isin(itm)]
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286
25
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287 class NotSettableError(Exception):
30
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288 pass
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289
26
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290 def cast(current, new):
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291 """Tries to force a new value into the same type as the current."""
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292 typ = type(current)
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293 if typ == bool:
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294 try:
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295 return bool(int(new))
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296 except ValueError, TypeError:
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297 pass
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298 try:
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299 new = new.lower()
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300 except:
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301 pass
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302 if (new=='on') or (new[0] in ('y','t')):
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303 return True
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304 if (new=='off') or (new[0] in ('n','f')):
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305 return False
30
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306 else:
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307 try:
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308 return typ(new)
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309 except:
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310 pass
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311 print "Problem setting parameter (now %s) to %s; incorrect type?" % (current, new)
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312 return current
26
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313
25
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314 class Statekeeper(object):
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315 def __init__(self, obj, attribs):
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316 self.obj = obj
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317 self.attribs = attribs
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318 self.save()
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319 def save(self):
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320 for attrib in self.attribs:
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321 setattr(self, attrib, getattr(self.obj, attrib))
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322 def restore(self):
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323 for attrib in self.attribs:
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324 setattr(self.obj, attrib, getattr(self, attrib))