Mercurial > sqlpython

annotate cmd2.py @ 17:25e908abf199

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multiline into cmd2
author devlinjs@FA7CZA6N1254998.wrightpatterson.afmc.ds.af.mil
date Wed, 19 Dec 2007 11:11:24 -0500
parents 2776755a3a7e
children d0f0b3e0b89b
rev   line source
16
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diff changeset
1 import cmd, re
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2
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3 class HistoryItem(str):
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4 def __init__(self, instr):
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5 str.__init__(self, instr)
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6 self.lowercase = self.lower()
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7 self.idx = None
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8 def pr(self):
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9 print '-------------------------[%d]' % (self.idx)
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10 print self
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11
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12 class History(list):
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13 rangeFrom = re.compile(r'^([\d])+\s*\-$')
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14 def append(self, new):
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15 new = HistoryItem(new)
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16 list.append(self, new)
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17 new.idx = len(self)
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18 def extend(self, new):
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19 for n in new:
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20 self.append(n)
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21 def get(self, getme):
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22 try:
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23 getme = int(getme)
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24 if getme < 0:
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25 return self[:(-1 * getme)]
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26 else:
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27 return [self[getme-1]]
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28 except IndexError:
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29 return []
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30 except (ValueError, TypeError):
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31 getme = getme.strip()
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32 mtch = self.rangeFrom.search(getme)
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33 if mtch:
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34 return self[(int(mtch.group(1))-1):]
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35 if getme.startswith(r'/') and getme.endswith(r'/'):
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36 finder = re.compile(getme[1:-1], re.DOTALL | re.MULTILINE | re.IGNORECASE)
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37 def isin(hi):
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38 return finder.search(hi)
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39 else:
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40 def isin(hi):
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41 return (getme.lower() in hi.lowercase)
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42 return [itm for itm in self if isin(itm)]
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43
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44 class Cmd(cmd.Cmd):
17
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45 excludeFromHistory = '''run r list l history hi ed li'''.split()
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46 caseInsensitive = True
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47 multilineCommands = []
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48 continuationPrompt = '> '
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49 def __init__(self, *args, **kwargs):
16
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50 cmd.Cmd.__init__(self, *args, **kwargs)
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51 self.history = History()
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52
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53 def precmd(self, line):
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54 """Hook method executed just before the command line is
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55 interpreted, but after the input prompt is generated and issued.
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56
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57 Makes commands case-insensitive (but unfortunately does not alter command completion).
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58 """
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59 try:
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60 (command, args) = line.split(None,1)
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61 except ValueError:
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62 (command, args) = line, ''
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63 if self.caseInsensitive:
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64 command = command.lower()
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65 statement = ' '.join([command, args])
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66 if (not self.multilineCommands) or (command not in self.multilineCommands):
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67 return statement
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68 return self.finishStatement(statement)
16
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69
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70 def postcmd(self, stop, line):
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71 """Hook method executed just after a command dispatch is finished."""
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72 try:
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73 command = line.split(None,1)[0].lower()
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74 if command not in self.excludeFromHistory:
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75 self.history.append(line)
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76 finally:
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77 return stop
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78
17
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79 def finishStatement(self, firstline):
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80 statement = firstline
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81 while not self.statementHasEnded(statement):
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82 statement = '%s\n%s' % (statement, raw_input(self.continuationPrompt))
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83 return statement
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84 # assembling a list of lines and joining them at the end would be faster,
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85 # but statementHasEnded needs a string arg; anyway, we're getting
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86 # user input and users are slow.
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87
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88 def statementHasEnded(self, lines):
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89 """This version lets statements end with ; or with a blank line.
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90 Override for your own needs."""
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91 if not lines.splitlines()[-1].strip():
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92 return True
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93 return (lines.strip()[-1] == ';')
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94
16
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95 def do_history(self, arg):
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96 """history [arg]: lists past commands issued
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97
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98 no arg -> list all
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99 arg is integer -> list one history item, by index
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100 arg is string -> string search
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101 arg is /enclosed in forward-slashes/ -> regular expression search
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102 """
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103 if arg:
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104 history = self.history.get(arg)
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105 else:
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106 history = self.history
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107 for hi in history:
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108 hi.pr()
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109 def last_matching(self, arg):
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110 try:
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111 if arg:
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112 return self.history.get(arg)[-1]
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113 else:
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114 return self.history[-1]
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115 except:
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116 return None
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117 def do_list(self, arg):
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118 """list [arg]: lists last command issued
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119
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120 no arg -> list absolute last
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121 arg is integer -> list one history item, by index
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122 - arg, arg - (integer) -> list up to or after #arg
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123 arg is string -> list last command matching string search
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124 arg is /enclosed in forward-slashes/ -> regular expression search
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125 """
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126 try:
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127 self.last_matching(arg).pr()
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128 except:
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129 pass
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devlinjs@FA7CZA6N1254998.wrightpatterson.afmc.ds.af.mil
parents:
diff changeset
130 do_hi = do_history
2776755a3a7e beginning separation of cmd2
devlinjs@FA7CZA6N1254998.wrightpatterson.afmc.ds.af.mil
parents:
diff changeset
131 do_l = do_list
2776755a3a7e beginning separation of cmd2
devlinjs@FA7CZA6N1254998.wrightpatterson.afmc.ds.af.mil
parents:
diff changeset
132 do_li = do_list
17
25e908abf199 multiline into cmd2
devlinjs@FA7CZA6N1254998.wrightpatterson.afmc.ds.af.mil
parents: 16
diff changeset
133
25e908abf199 multiline into cmd2
devlinjs@FA7CZA6N1254998.wrightpatterson.afmc.ds.af.mil
parents: 16
diff changeset
134
16
2776755a3a7e beginning separation of cmd2
devlinjs@FA7CZA6N1254998.wrightpatterson.afmc.ds.af.mil
parents:
diff changeset
135