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author | Nicolas Dumazet <nicdumz.commits@gmail.com> |
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date | Thu, 12 Aug 2010 16:53:23 +0900 |
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dagparser: parses and formats DAGs as concise text
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1 # dagparser.py - parser and generator for concise description of DAGs |
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2 # |
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3 # Copyright 2010 Peter Arrenbrecht <peter@arrenbrecht.ch> |
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4 # |
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5 # This software may be used and distributed according to the terms of the |
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6 # GNU General Public License version 2 or any later version. |
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7 |
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8 import re, string |
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9 import util |
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10 |
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11 def parsedag(desc): |
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12 '''parses a DAG from a concise textual description; generates events |
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13 |
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14 "+n" is a linear run of n nodes based on the current default parent |
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15 "." is a single node based on the current default parent |
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16 "$" resets the default parent to -1 (implied at the start); |
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17 otherwise the default parent is always the last node created |
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18 "<p" sets the default parent to the backref p |
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19 "*p" is a fork at parent p, where p is a backref |
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20 "*p1/p2/.../pn" is a merge of parents p1..pn, where the pi are backrefs |
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21 "/p2/.../pn" is a merge of the preceding node and p2..pn |
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22 ":name" defines a label for the preceding node; labels can be redefined |
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23 "@text" emits an annotation event for text |
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24 "!command" emits an action event for the current node |
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25 "!!my command\n" is like "!", but to the end of the line |
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26 "#...\n" is a comment up to the end of the line |
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27 |
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28 Whitespace between the above elements is ignored. |
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29 |
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30 A backref is either |
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31 * a number n, which references the node curr-n, where curr is the current |
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32 node, or |
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33 * the name of a label you placed earlier using ":name", or |
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34 * empty to denote the default parent. |
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35 |
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36 All string valued-elements are either strictly alphanumeric, or must |
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37 be enclosed in double quotes ("..."), with "\" as escape character. |
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38 |
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39 Generates sequence of |
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40 |
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41 ('n', (id, [parentids])) for node creation |
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42 ('l', (id, labelname)) for labels on nodes |
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43 ('a', text) for annotations |
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44 ('c', command) for actions (!) |
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45 ('C', command) for line actions (!!) |
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46 |
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47 Examples |
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48 -------- |
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49 |
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50 Example of a complex graph (output not shown for brevity): |
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51 |
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52 >>> len(list(parsedag(""" |
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53 ... |
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54 ... +3 # 3 nodes in linear run |
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55 ... :forkhere # a label for the last of the 3 nodes from above |
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56 ... +5 # 5 more nodes on one branch |
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57 ... :mergethis # label again |
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58 ... <forkhere # set default parent to labelled fork node |
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59 ... +10 # 10 more nodes on a parallel branch |
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60 ... @stable # following nodes will be annotated as "stable" |
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61 ... +5 # 5 nodes in stable |
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62 ... !addfile # custom command; could trigger new file in next node |
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63 ... +2 # two more nodes |
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64 ... /mergethis # merge last node with labelled node |
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65 ... +4 # 4 more nodes descending from merge node |
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66 ... |
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67 ... """))) |
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68 34 |
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69 |
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70 Empty list: |
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71 |
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72 >>> list(parsedag("")) |
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73 [] |
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74 |
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75 A simple linear run: |
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76 |
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77 >>> list(parsedag("+3")) |
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78 [('n', (0, [-1])), ('n', (1, [0])), ('n', (2, [1]))] |
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79 |
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80 Some non-standard ways to define such runs: |
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81 |
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82 >>> list(parsedag("+1+2")) |
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83 [('n', (0, [-1])), ('n', (1, [0])), ('n', (2, [1]))] |
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84 |
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85 >>> list(parsedag("+1*1*")) |
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86 [('n', (0, [-1])), ('n', (1, [0])), ('n', (2, [1]))] |
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87 |
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88 >>> list(parsedag("*")) |
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89 [('n', (0, [-1]))] |
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90 |
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91 >>> list(parsedag("...")) |
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92 [('n', (0, [-1])), ('n', (1, [0])), ('n', (2, [1]))] |
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93 |
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94 A fork and a join, using numeric back references: |
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95 |
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96 >>> list(parsedag("+2*2*/2")) |
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97 [('n', (0, [-1])), ('n', (1, [0])), ('n', (2, [0])), ('n', (3, [2, 1]))] |
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98 |
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99 >>> list(parsedag("+2<2+1/2")) |
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100 [('n', (0, [-1])), ('n', (1, [0])), ('n', (2, [0])), ('n', (3, [2, 1]))] |
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101 |
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102 Placing a label: |
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103 |
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104 >>> list(parsedag("+1 :mylabel +1")) |
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105 [('n', (0, [-1])), ('l', (0, 'mylabel')), ('n', (1, [0]))] |
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106 |
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107 An empty label (silly, really): |
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108 |
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109 >>> list(parsedag("+1:+1")) |
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110 [('n', (0, [-1])), ('l', (0, '')), ('n', (1, [0]))] |
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111 |
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112 Fork and join, but with labels instead of numeric back references: |
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113 |
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114 >>> list(parsedag("+1:f +1:p2 *f */p2")) |
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115 [('n', (0, [-1])), ('l', (0, 'f')), ('n', (1, [0])), ('l', (1, 'p2')), |
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116 ('n', (2, [0])), ('n', (3, [2, 1]))] |
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117 |
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118 >>> list(parsedag("+1:f +1:p2 <f +1 /p2")) |
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119 [('n', (0, [-1])), ('l', (0, 'f')), ('n', (1, [0])), ('l', (1, 'p2')), |
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120 ('n', (2, [0])), ('n', (3, [2, 1]))] |
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121 |
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122 Restarting from the root: |
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123 |
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124 >>> list(parsedag("+1 $ +1")) |
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125 [('n', (0, [-1])), ('n', (1, [-1]))] |
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126 |
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127 Annotations, which are meant to introduce sticky state for subsequent nodes: |
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128 |
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129 >>> list(parsedag("+1 @ann +1")) |
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130 [('n', (0, [-1])), ('a', 'ann'), ('n', (1, [0]))] |
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131 |
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132 >>> list(parsedag('+1 @"my annotation" +1')) |
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133 [('n', (0, [-1])), ('a', 'my annotation'), ('n', (1, [0]))] |
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134 |
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135 Commands, which are meant to operate on the most recently created node: |
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136 |
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137 >>> list(parsedag("+1 !cmd +1")) |
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138 [('n', (0, [-1])), ('c', 'cmd'), ('n', (1, [0]))] |
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139 |
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140 >>> list(parsedag('+1 !"my command" +1')) |
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141 [('n', (0, [-1])), ('c', 'my command'), ('n', (1, [0]))] |
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142 |
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143 >>> list(parsedag('+1 !!my command line\\n +1')) |
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144 [('n', (0, [-1])), ('C', 'my command line'), ('n', (1, [0]))] |
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145 |
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146 Comments, which extend to the end of the line: |
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147 |
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148 >>> list(parsedag('+1 # comment\\n+1')) |
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149 [('n', (0, [-1])), ('n', (1, [0]))] |
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150 |
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151 Error: |
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152 |
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153 >>> try: list(parsedag('+1 bad')) |
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154 ... except Exception, e: print e |
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155 invalid character in dag description: bad... |
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156 |
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157 ''' |
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158 if not desc: |
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159 return |
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160 |
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161 wordchars = string.ascii_letters + string.digits |
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162 |
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163 labels = {} |
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164 p1 = -1 |
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165 r = 0 |
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166 |
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167 def resolve(ref): |
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168 if not ref: |
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169 return p1 |
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170 elif ref[0] in string.digits: |
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171 return r - int(ref) |
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172 else: |
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173 return labels[ref] |
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174 |
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175 chiter = (c for c in desc) |
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176 |
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177 def nextch(): |
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178 try: |
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179 return chiter.next() |
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180 except StopIteration: |
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181 return '\0' |
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182 |
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183 def nextrun(c, allow): |
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184 s = '' |
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185 while c in allow: |
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186 s += c |
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187 c = nextch() |
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188 return c, s |
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189 |
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190 def nextdelimited(c, limit, escape): |
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191 s = '' |
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192 while c != limit: |
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193 if c == escape: |
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194 c = nextch() |
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195 s += c |
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196 c = nextch() |
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197 return nextch(), s |
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198 |
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199 def nextstring(c): |
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200 if c == '"': |
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201 return nextdelimited(nextch(), '"', '\\') |
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202 else: |
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203 return nextrun(c, wordchars) |
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204 |
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205 c = nextch() |
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206 while c != '\0': |
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207 while c in string.whitespace: |
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208 c = nextch() |
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209 if c == '.': |
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210 yield 'n', (r, [p1]) |
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211 p1 = r |
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212 r += 1 |
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213 c = nextch() |
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214 elif c == '+': |
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215 c, digs = nextrun(nextch(), string.digits) |
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216 n = int(digs) |
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217 for i in xrange(0, n): |
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218 yield 'n', (r, [p1]) |
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219 p1 = r |
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220 r += 1 |
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221 elif c == '*' or c == '/': |
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222 if c == '*': |
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223 c = nextch() |
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224 c, pref = nextstring(c) |
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225 prefs = [pref] |
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226 while c == '/': |
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227 c, pref = nextstring(nextch()) |
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228 prefs.append(pref) |
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229 ps = [resolve(ref) for ref in prefs] |
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230 yield 'n', (r, ps) |
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231 p1 = r |
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232 r += 1 |
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233 elif c == '<': |
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234 c, ref = nextstring(nextch()) |
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235 p1 = resolve(ref) |
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236 elif c == ':': |
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237 c, name = nextstring(nextch()) |
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238 labels[name] = p1 |
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239 yield 'l', (p1, name) |
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240 elif c == '@': |
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241 c, text = nextstring(nextch()) |
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242 yield 'a', text |
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243 elif c == '!': |
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244 c = nextch() |
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245 if c == '!': |
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246 cmd = '' |
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247 c = nextch() |
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248 while c not in '\n\r\0': |
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249 cmd += c |
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250 c = nextch() |
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251 yield 'C', cmd |
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252 else: |
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253 c, cmd = nextstring(c) |
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254 yield 'c', cmd |
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255 elif c == '#': |
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256 while c not in '\n\r\0': |
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257 c = nextch() |
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258 elif c == '$': |
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259 p1 = -1 |
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260 c = nextch() |
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261 elif c == '\0': |
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262 return # in case it was preceded by whitespace |
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263 else: |
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264 s = '' |
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265 i = 0 |
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266 while c != '\0' and i < 10: |
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267 s += c |
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268 i += 1 |
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269 c = nextch() |
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270 raise util.Abort("invalid character in dag description: %s..." % s) |
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271 |
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272 def dagtextlines(events, |
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273 addspaces=True, |
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274 wraplabels=False, |
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275 wrapannotations=False, |
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276 wrapcommands=False, |
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277 wrapnonlinear=False, |
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278 usedots=False, |
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279 maxlinewidth=70): |
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280 '''generates single lines for dagtext()''' |
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281 |
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282 def wrapstring(text): |
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283 if re.match("^[0-9a-z]*$", text): |
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284 return text |
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285 return '"' + text.replace('\\', '\\\\').replace('"', '\"') + '"' |
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286 |
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287 def gen(): |
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288 labels = {} |
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289 run = 0 |
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290 wantr = 0 |
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291 needroot = False |
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292 for kind, data in events: |
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293 if kind == 'n': |
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294 r, ps = data |
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295 |
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|
296 # sanity check |
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297 if r != wantr: |
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298 raise util.Abort("Expected id %i, got %i" % (wantr, r)) |
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299 if not ps: |
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300 ps = [-1] |
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301 else: |
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parents:
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|
302 for p in ps: |
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303 if p >= r: |
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304 raise util.Abort("Parent id %i is larger than " |
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|
305 "current id %i" % (p, r)) |
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306 wantr += 1 |
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|
307 |
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|
308 # new root? |
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309 p1 = r - 1 |
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310 if len(ps) == 1 and ps[0] == -1: |
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parents:
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311 if needroot: |
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Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents:
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|
312 if run: |
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Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents:
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|
313 yield '+' + str(run) |
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parents:
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|
314 run = 0 |
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parents:
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|
315 if wrapnonlinear: |
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parents:
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|
316 yield '\n' |
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Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents:
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|
317 yield '$' |
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|
318 p1 = -1 |
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319 else: |
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parents:
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|
320 needroot = True |
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parents:
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|
321 if len(ps) == 1 and ps[0] == p1: |
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parents:
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|
322 if usedots: |
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Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents:
diff
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|
323 yield "." |
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Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents:
diff
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|
324 else: |
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Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents:
diff
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|
325 run += 1 |
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parents:
diff
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|
326 else: |
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Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents:
diff
changeset
|
327 if run: |
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Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents:
diff
changeset
|
328 yield '+' + str(run) |
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Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents:
diff
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|
329 run = 0 |
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Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents:
diff
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|
330 if wrapnonlinear: |
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Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents:
diff
changeset
|
331 yield '\n' |
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Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents:
diff
changeset
|
332 prefs = [] |
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parents:
diff
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|
333 for p in ps: |
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Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents:
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|
334 if p == p1: |
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parents:
diff
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|
335 prefs.append('') |
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parents:
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|
336 elif p in labels: |
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|
337 prefs.append(labels[p]) |
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parents:
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|
338 else: |
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Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents:
diff
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|
339 prefs.append(str(r - p)) |
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Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents:
diff
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|
340 yield '*' + '/'.join(prefs) |
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Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents:
diff
changeset
|
341 else: |
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Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents:
diff
changeset
|
342 if run: |
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Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents:
diff
changeset
|
343 yield '+' + str(run) |
3201ff1459dd
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Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents:
diff
changeset
|
344 run = 0 |
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Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents:
diff
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|
345 if kind == 'l': |
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Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents:
diff
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|
346 rid, name = data |
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parents:
diff
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|
347 labels[rid] = name |
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Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents:
diff
changeset
|
348 yield ':' + name |
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Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents:
diff
changeset
|
349 if wraplabels: |
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Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents:
diff
changeset
|
350 yield '\n' |
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Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents:
diff
changeset
|
351 elif kind == 'c': |
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Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents:
diff
changeset
|
352 yield '!' + wrapstring(data) |
3201ff1459dd
dagparser: parses and formats DAGs as concise text
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents:
diff
changeset
|
353 if wrapcommands: |
3201ff1459dd
dagparser: parses and formats DAGs as concise text
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents:
diff
changeset
|
354 yield '\n' |
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Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents:
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355 elif kind == 'C': |
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Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents:
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356 yield '!!' + data |
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Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents:
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|
357 yield '\n' |
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Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents:
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358 elif kind == 'a': |
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parents:
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359 if wrapannotations: |
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Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents:
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360 yield '\n' |
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dagparser: parses and formats DAGs as concise text
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents:
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|
361 yield '@' + wrapstring(data) |
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Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents:
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362 elif kind == '#': |
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Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents:
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363 yield '#' + data |
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dagparser: parses and formats DAGs as concise text
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents:
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|
364 yield '\n' |
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Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents:
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365 else: |
11344
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parents:
11335
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366 raise util.Abort(_("invalid event type in dag: %s") |
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Martin Geisler <mg@aragost.com>
parents:
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367 % str((type, data))) |
11335
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parents:
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368 if run: |
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dagparser: parses and formats DAGs as concise text
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents:
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369 yield '+' + str(run) |
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Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents:
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370 |
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Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents:
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371 line = '' |
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Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents:
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372 for part in gen(): |
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Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents:
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373 if part == '\n': |
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Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents:
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374 if line: |
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dagparser: parses and formats DAGs as concise text
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents:
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|
375 yield line |
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dagparser: parses and formats DAGs as concise text
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents:
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376 line = '' |
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dagparser: parses and formats DAGs as concise text
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents:
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377 else: |
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Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents:
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378 if len(line) + len(part) >= maxlinewidth: |
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dagparser: parses and formats DAGs as concise text
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents:
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|
379 yield line |
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dagparser: parses and formats DAGs as concise text
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents:
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380 line = '' |
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Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents:
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381 elif addspaces and line and part != '.': |
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Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents:
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382 line += ' ' |
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parents:
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383 line += part |
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Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents:
diff
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|
384 if line: |
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dagparser: parses and formats DAGs as concise text
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents:
diff
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|
385 yield line |
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dagparser: parses and formats DAGs as concise text
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents:
diff
changeset
|
386 |
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Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents:
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387 def dagtext(dag, |
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Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents:
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388 addspaces=True, |
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parents:
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389 wraplabels=False, |
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Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents:
diff
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390 wrapannotations=False, |
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Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents:
diff
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391 wrapcommands=False, |
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Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents:
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392 wrapnonlinear=False, |
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Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents:
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393 usedots=False, |
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Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents:
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394 maxlinewidth=70): |
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Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents:
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395 '''generates lines of a textual representation for a dag event stream |
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Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents:
diff
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|
396 |
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dagparser: parses and formats DAGs as concise text
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents:
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397 events should generate what parsedag() does, so: |
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Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents:
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|
398 |
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Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents:
diff
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|
399 ('n', (id, [parentids])) for node creation |
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dagparser: parses and formats DAGs as concise text
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents:
diff
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|
400 ('l', (id, labelname)) for labels on nodes |
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dagparser: parses and formats DAGs as concise text
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents:
diff
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|
401 ('a', text) for annotations |
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dagparser: parses and formats DAGs as concise text
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents:
diff
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|
402 ('c', text) for commands |
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dagparser: parses and formats DAGs as concise text
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents:
diff
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|
403 ('C', text) for line commands ('!!') |
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dagparser: parses and formats DAGs as concise text
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents:
diff
changeset
|
404 ('#', text) for comment lines |
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dagparser: parses and formats DAGs as concise text
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents:
diff
changeset
|
405 |
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Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents:
diff
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|
406 Parent nodes must come before child nodes. |
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Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents:
diff
changeset
|
407 |
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dagparser: parses and formats DAGs as concise text
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents:
diff
changeset
|
408 Examples |
3201ff1459dd
dagparser: parses and formats DAGs as concise text
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents:
diff
changeset
|
409 -------- |
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dagparser: parses and formats DAGs as concise text
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents:
diff
changeset
|
410 |
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dagparser: parses and formats DAGs as concise text
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents:
diff
changeset
|
411 Linear run: |
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dagparser: parses and formats DAGs as concise text
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents:
diff
changeset
|
412 |
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dagparser: parses and formats DAGs as concise text
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents:
diff
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|
413 >>> dagtext([('n', (0, [-1])), ('n', (1, [0]))]) |
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Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents:
diff
changeset
|
414 '+2' |
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dagparser: parses and formats DAGs as concise text
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents:
diff
changeset
|
415 |
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dagparser: parses and formats DAGs as concise text
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents:
diff
changeset
|
416 Two roots: |
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dagparser: parses and formats DAGs as concise text
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents:
diff
changeset
|
417 |
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Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents:
diff
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|
418 >>> dagtext([('n', (0, [-1])), ('n', (1, [-1]))]) |
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Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents:
diff
changeset
|
419 '+1 $ +1' |
3201ff1459dd
dagparser: parses and formats DAGs as concise text
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents:
diff
changeset
|
420 |
3201ff1459dd
dagparser: parses and formats DAGs as concise text
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents:
diff
changeset
|
421 Fork and join: |
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Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents:
diff
changeset
|
422 |
3201ff1459dd
dagparser: parses and formats DAGs as concise text
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents:
diff
changeset
|
423 >>> dagtext([('n', (0, [-1])), ('n', (1, [0])), ('n', (2, [0])), |
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Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents:
diff
changeset
|
424 ... ('n', (3, [2, 1]))]) |
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dagparser: parses and formats DAGs as concise text
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents:
diff
changeset
|
425 '+2 *2 */2' |
3201ff1459dd
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Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents:
diff
changeset
|
426 |
3201ff1459dd
dagparser: parses and formats DAGs as concise text
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents:
diff
changeset
|
427 Fork and join with labels: |
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dagparser: parses and formats DAGs as concise text
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents:
diff
changeset
|
428 |
3201ff1459dd
dagparser: parses and formats DAGs as concise text
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents:
diff
changeset
|
429 >>> dagtext([('n', (0, [-1])), ('l', (0, 'f')), ('n', (1, [0])), |
3201ff1459dd
dagparser: parses and formats DAGs as concise text
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents:
diff
changeset
|
430 ... ('l', (1, 'p2')), ('n', (2, [0])), ('n', (3, [2, 1]))]) |
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dagparser: parses and formats DAGs as concise text
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents:
diff
changeset
|
431 '+1 :f +1 :p2 *f */p2' |
3201ff1459dd
dagparser: parses and formats DAGs as concise text
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents:
diff
changeset
|
432 |
3201ff1459dd
dagparser: parses and formats DAGs as concise text
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents:
diff
changeset
|
433 Annotations: |
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dagparser: parses and formats DAGs as concise text
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents:
diff
changeset
|
434 |
3201ff1459dd
dagparser: parses and formats DAGs as concise text
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents:
diff
changeset
|
435 >>> dagtext([('n', (0, [-1])), ('a', 'ann'), ('n', (1, [0]))]) |
3201ff1459dd
dagparser: parses and formats DAGs as concise text
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents:
diff
changeset
|
436 '+1 @ann +1' |
3201ff1459dd
dagparser: parses and formats DAGs as concise text
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents:
diff
changeset
|
437 |
3201ff1459dd
dagparser: parses and formats DAGs as concise text
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents:
diff
changeset
|
438 >>> dagtext([('n', (0, [-1])), ('a', 'my annotation'), ('n', (1, [0]))]) |
3201ff1459dd
dagparser: parses and formats DAGs as concise text
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents:
diff
changeset
|
439 '+1 @"my annotation" +1' |
3201ff1459dd
dagparser: parses and formats DAGs as concise text
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents:
diff
changeset
|
440 |
3201ff1459dd
dagparser: parses and formats DAGs as concise text
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents:
diff
changeset
|
441 Commands: |
3201ff1459dd
dagparser: parses and formats DAGs as concise text
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents:
diff
changeset
|
442 |
3201ff1459dd
dagparser: parses and formats DAGs as concise text
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents:
diff
changeset
|
443 >>> dagtext([('n', (0, [-1])), ('c', 'cmd'), ('n', (1, [0]))]) |
3201ff1459dd
dagparser: parses and formats DAGs as concise text
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents:
diff
changeset
|
444 '+1 !cmd +1' |
3201ff1459dd
dagparser: parses and formats DAGs as concise text
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents:
diff
changeset
|
445 |
3201ff1459dd
dagparser: parses and formats DAGs as concise text
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents:
diff
changeset
|
446 >>> dagtext([('n', (0, [-1])), ('c', 'my command'), ('n', (1, [0]))]) |
3201ff1459dd
dagparser: parses and formats DAGs as concise text
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents:
diff
changeset
|
447 '+1 !"my command" +1' |
3201ff1459dd
dagparser: parses and formats DAGs as concise text
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents:
diff
changeset
|
448 |
3201ff1459dd
dagparser: parses and formats DAGs as concise text
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents:
diff
changeset
|
449 >>> dagtext([('n', (0, [-1])), ('C', 'my command line'), ('n', (1, [0]))]) |
3201ff1459dd
dagparser: parses and formats DAGs as concise text
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents:
diff
changeset
|
450 '+1 !!my command line\\n+1' |
3201ff1459dd
dagparser: parses and formats DAGs as concise text
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents:
diff
changeset
|
451 |
3201ff1459dd
dagparser: parses and formats DAGs as concise text
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents:
diff
changeset
|
452 Comments: |
3201ff1459dd
dagparser: parses and formats DAGs as concise text
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents:
diff
changeset
|
453 |
3201ff1459dd
dagparser: parses and formats DAGs as concise text
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents:
diff
changeset
|
454 >>> dagtext([('n', (0, [-1])), ('#', ' comment'), ('n', (1, [0]))]) |
3201ff1459dd
dagparser: parses and formats DAGs as concise text
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents:
diff
changeset
|
455 '+1 # comment\\n+1' |
3201ff1459dd
dagparser: parses and formats DAGs as concise text
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents:
diff
changeset
|
456 |
3201ff1459dd
dagparser: parses and formats DAGs as concise text
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents:
diff
changeset
|
457 >>> dagtext([]) |
3201ff1459dd
dagparser: parses and formats DAGs as concise text
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents:
diff
changeset
|
458 '' |
3201ff1459dd
dagparser: parses and formats DAGs as concise text
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents:
diff
changeset
|
459 |
3201ff1459dd
dagparser: parses and formats DAGs as concise text
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents:
diff
changeset
|
460 Combining parsedag and dagtext: |
3201ff1459dd
dagparser: parses and formats DAGs as concise text
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents:
diff
changeset
|
461 |
3201ff1459dd
dagparser: parses and formats DAGs as concise text
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents:
diff
changeset
|
462 >>> dagtext(parsedag('+1 :f +1 :p2 *f */p2')) |
3201ff1459dd
dagparser: parses and formats DAGs as concise text
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents:
diff
changeset
|
463 '+1 :f +1 :p2 *f */p2' |
3201ff1459dd
dagparser: parses and formats DAGs as concise text
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents:
diff
changeset
|
464 |
3201ff1459dd
dagparser: parses and formats DAGs as concise text
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents:
diff
changeset
|
465 ''' |
3201ff1459dd
dagparser: parses and formats DAGs as concise text
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents:
diff
changeset
|
466 return "\n".join(dagtextlines(dag, |
3201ff1459dd
dagparser: parses and formats DAGs as concise text
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents:
diff
changeset
|
467 addspaces, |
3201ff1459dd
dagparser: parses and formats DAGs as concise text
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents:
diff
changeset
|
468 wraplabels, |
3201ff1459dd
dagparser: parses and formats DAGs as concise text
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents:
diff
changeset
|
469 wrapannotations, |
3201ff1459dd
dagparser: parses and formats DAGs as concise text
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents:
diff
changeset
|
470 wrapcommands, |
3201ff1459dd
dagparser: parses and formats DAGs as concise text
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents:
diff
changeset
|
471 wrapnonlinear, |
3201ff1459dd
dagparser: parses and formats DAGs as concise text
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents:
diff
changeset
|
472 usedots, |
3201ff1459dd
dagparser: parses and formats DAGs as concise text
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents:
diff
changeset
|
473 maxlinewidth)) |