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@@ -1,139 +1,139 b'' | |||
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1 | 1 | # -*- coding: utf-8 -*- |
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2 | 2 | |
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3 | 3 | """ History related magics and functionality """ |
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4 | 4 | |
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5 | 5 | import IPython.ipapi |
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6 | 6 | ip = IPython.ipapi.get() |
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7 | 7 | |
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8 | 8 | import fnmatch |
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9 | 9 | |
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10 | 10 | def magic_history(self, parameter_s = ''): |
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11 | 11 | """Print input history (_i<n> variables), with most recent last. |
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12 | 12 | |
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13 | 13 | %history -> print at most 40 inputs (some may be multi-line)\\ |
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14 | 14 | %history n -> print at most n inputs\\ |
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15 | 15 | %history n1 n2 -> print inputs between n1 and n2 (n2 not included)\\ |
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16 | 16 | |
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17 | 17 | Each input's number <n> is shown, and is accessible as the |
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18 | 18 | automatically generated variable _i<n>. Multi-line statements are |
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19 | 19 | printed starting at a new line for easy copy/paste. |
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20 | 20 | |
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21 | 21 | |
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22 | 22 | Options: |
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23 | 23 | |
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24 | 24 | -n: do NOT print line numbers. This is useful if you want to get a |
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25 | 25 | printout of many lines which can be directly pasted into a text |
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26 | 26 | editor. |
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27 | 27 | |
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28 | 28 | This feature is only available if numbered prompts are in use. |
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29 | 29 | |
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30 | 30 | -t: print the 'translated' history, as IPython understands it. IPython |
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31 | 31 | filters your input and converts it all into valid Python source before |
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32 | 32 | executing it (things like magics or aliases are turned into function |
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33 | 33 | calls, for example). With this option, you'll see the native history |
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34 | 34 | instead of the user-entered version: '%cd /' will be seen as |
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35 | 35 | '_ip.magic("%cd /")' instead of '%cd /'. |
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36 | 36 | |
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37 | 37 | -g: treat the arg as a pattern to grep for in (full) history |
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38 | 38 | |
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39 | 39 | """ |
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40 | 40 | |
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41 | 41 | shell = self.shell |
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42 | 42 | if not shell.outputcache.do_full_cache: |
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43 | 43 | print 'This feature is only available if numbered prompts are in use.' |
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44 | 44 | return |
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45 | 45 | opts,args = self.parse_options(parameter_s,'gnt',mode='list') |
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46 | 46 | |
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47 | 47 | if not opts.has_key('t'): |
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48 | 48 | input_hist = shell.input_hist_raw |
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49 | 49 | else: |
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50 | 50 | input_hist = shell.input_hist |
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51 | 51 | |
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52 | 52 | default_length = 40 |
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53 | 53 | pattern = None |
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54 | 54 | if opts.has_key('g'): |
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55 | 55 | init = 1 |
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56 | 56 | final = len(input_hist) |
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57 | 57 | head, pattern = parameter_s.split(None,1) |
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58 | 58 | pattern = "*" + pattern + "*" |
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59 | 59 | elif len(args) == 0: |
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60 | 60 | final = len(input_hist) |
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61 | 61 | init = max(1,final-default_length) |
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62 | 62 | elif len(args) == 1: |
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63 | 63 | final = len(input_hist) |
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64 | 64 | init = max(1,final-int(args[0])) |
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65 | 65 | elif len(args) == 2: |
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66 | 66 | init,final = map(int,args) |
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67 | 67 | else: |
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68 | 68 | warn('%hist takes 0, 1 or 2 arguments separated by spaces.') |
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69 | 69 | print self.magic_hist.__doc__ |
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70 | 70 | return |
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71 | 71 | width = len(str(final)) |
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72 | 72 | line_sep = ['','\n'] |
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73 | 73 | print_nums = not opts.has_key('n') |
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74 | 74 | for in_num in range(init,final): |
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75 | 75 | inline = input_hist[in_num] |
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76 | 76 | if pattern is not None and not fnmatch.fnmatch(inline, pattern): |
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77 | 77 | continue |
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78 | 78 | |
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79 | 79 | multiline = int(inline.count('\n') > 1) |
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80 | 80 | if print_nums: |
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81 | 81 | print '%s:%s' % (str(in_num).ljust(width),line_sep[multiline]), |
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82 | 82 | print inline, |
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83 | 83 | |
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84 | 84 | ip.expose_magic("history",magic_history) |
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85 | 85 | |
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86 | 86 | def magic_hist(self, parameter_s=''): |
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87 | 87 | """Alternate name for %history.""" |
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88 | 88 | return self.magic_history(parameter_s) |
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89 | 89 | |
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90 | 90 | ip.expose_magic("hist",magic_hist) |
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91 | 91 | |
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92 | 92 | def rep_f(self, arg): |
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93 | 93 | r""" Repeat a command, or get command to input line for editing |
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94 | 94 | |
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95 | 95 | - %rep (no arguments): |
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96 | 96 | |
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97 | 97 | Place a string version of last input to the next input prompt. Allows you |
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98 | 98 | to create elaborate command lines without using copy-paste:: |
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99 | 99 | |
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100 | 100 | $ l = ["hei", "vaan"] |
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101 | 101 | $ "".join(l) |
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102 | 102 | ==> heivaan |
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103 | 103 | $ %rep |
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104 | 104 | $ heivaan_ <== cursor blinking |
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105 | 105 | |
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106 | 106 | %rep 45 |
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107 | 107 | |
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108 | 108 | Place history line 45 to next input prompt. Use %hist to find out the number. |
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109 | 109 | |
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110 | 110 | %rep 1-4 6-7 3 |
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111 | 111 | |
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112 | 112 | Repeat the specified lines immediately. Input slice syntax is the same as |
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113 | 113 | in %macro and %save. |
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114 | 114 | |
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115 | 115 | """ |
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116 | 116 | |
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117 | 117 | |
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118 | 118 | opts,args = self.parse_options(arg,'',mode='list') |
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119 | print args | |
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119 | ||
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120 | 120 | if not args: |
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121 | 121 | ip.set_next_input(str(ip.user_ns["_"])) |
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122 | 122 | return |
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123 | 123 | |
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124 | if len(arg) == 1: | |
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124 | if len(args) == 1: | |
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125 | 125 | try: |
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126 | 126 | num = int(args[0]) |
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127 | 127 | ip.set_next_input(str(ip.IP.input_hist_raw[num]).rstrip()) |
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128 | 128 | return |
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129 | 129 | except ValueError: |
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130 | 130 | pass |
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131 | 131 | |
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132 | 132 | |
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133 | 133 | lines = self.extract_input_slices(args, True) |
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134 | 134 | print "lines",lines |
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135 | 135 | ip.runlines(lines) |
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136 | 136 | |
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137 | 137 | ip.expose_magic("rep",rep_f) |
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138 | 138 | |
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139 | 139 |
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