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1 # Copyright (c) 2004 Gavin E. Crooks <gec@compbio.berkeley.edu>
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2 #
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3 # This software is distributed under the MIT Open Source License.
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4 # <http://www.opensource.org/licenses/mit-license.html>
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5 #
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6 # Permission is hereby granted, free of charge, to any person obtaining a
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7 # copy of this software and associated documentation files (the "Software"),
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8 # to deal in the Software without restriction, including without limitation
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9 # the rights to use, copy, modify, merge, publish, distribute, sublicense,
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10 # and/or sell copies of the Software, and to permit persons to whom the
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11 # Software is furnished to do so, subject to the following conditions:
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12 #
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13 # The above copyright notice and this permission notice shall be included
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14 # in all copies or substantial portions of the Software.
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15 #
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16 # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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17 # IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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18 # FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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19 # AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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20 # LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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21 # OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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22 # THE SOFTWARE.
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23 #
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24
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25 """Custom extensions to OptionParse for parsing command line options."""
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26 # FIXME: Docstring
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27
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28 # TODO: Add profiling option
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29
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30 # DeOptionParser :
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31 #
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32 # http://docs.python.org/lib/module-optparse.html
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33 #
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34 # Random_options :
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35 # Set random generator and seed. Use options.random as
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36 # source of random numbers
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37 # Copyright :
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38 # print copyright information
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39
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40 # Documentation :
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41 # print extended document information
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42 #
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43 # Additional file_in and file_out types
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44
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45 import sys
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46 from copy import copy
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47 from optparse import Option
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48 from optparse import OptionParser
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49 from optparse import IndentedHelpFormatter
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50 from optparse import OptionValueError
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51 import random
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52
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53
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54
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55 def _copyright_callback(option, opt, value, parser):
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56 if option or opt or value or parser: pass # Shut up lint checker
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57 print parser.copyright
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58 sys.exit()
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59
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60 def _doc_callback(option, opt, value, parser):
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61 if option or opt or value or parser: pass # Shut up lint checker
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62 print parser.long_description
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63 sys.exit()
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64
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65
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66 class DeHelpFormatter(IndentedHelpFormatter) :
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67 def __init__ (self,
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68 indent_increment=2,
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69 max_help_position=32,
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70 width=78,
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71 short_first=1):
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72 IndentedHelpFormatter.__init__(
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73 self, indent_increment, max_help_position,
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74 width, short_first)
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75
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76 def format_option_strings (self, option):
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77 """Return a comma-separated list of option strings & metavariables."""
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78 if option.takes_value():
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79 metavar = option.metavar or option.dest.upper()
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80 short_opts = option._short_opts
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81 long_opts = [lopt + " " + metavar for lopt in option._long_opts]
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82 else:
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83 short_opts = option._short_opts
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84 long_opts = option._long_opts
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85
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86 if not short_opts : short_opts = [" ",]
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87
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88 if self.short_first:
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89 opts = short_opts + long_opts
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90 else:
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91 opts = long_opts + short_opts
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92
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93 return " ".join(opts)
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94
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95
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96
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97 def _check_file_in(option, opt, value):
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98 if option or opt or value : pass # Shut up lint checker
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99 try:
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100 return file(value, "r")
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101 except IOError:
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102 raise OptionValueError(
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103 "option %s: cannot open file: %s" % (opt, value) )
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104
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105 def _check_file_out(option, opt, value):
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106 if option or opt or value : pass # Shut up lint checker
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107 try:
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108 return file(value, "w+")
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109 except IOError:
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110 raise OptionValueError(
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111 "option %s: cannot open file: %s" % (opt, value) )
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112
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113 def _check_boolean(option, opt, value) :
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114 if option or opt or value : pass # Shut up lint checker
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115 v = value.lower()
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116 choices = {'no': False, 'false':False, '0': False,
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117 'yes': True, 'true': True, '1':True }
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118 try:
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119 return choices[v]
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120 except KeyError:
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121 raise OptionValueError(
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122 "option %s: invalid choice: '%s' " \
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123 "(choose from 'yes' or 'no', 'true' or 'false')" % (opt, value))
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124
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125 def _check_dict(option, opt, value) :
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126 if option or opt or value : pass # Shut up lint checker
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127 v = value.lower()
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128 choices = option.choices
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129 try:
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130 return choices[v]
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131 except KeyError:
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132 raise OptionValueError(
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133 "option %s: invalid choice: '%s' " \
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134 "(choose from '%s')" % (opt, value, "', '".join(choices)))
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135
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136
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137
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138 class DeOption(Option):
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139 TYPES = Option.TYPES + ("file_in","file_out", "boolean", "dict")
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140 TYPE_CHECKER = copy(Option.TYPE_CHECKER)
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141 TYPE_CHECKER["file_in"] = _check_file_in
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142 TYPE_CHECKER["file_out"] = _check_file_out
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143 TYPE_CHECKER["boolean"] = _check_boolean
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144 TYPE_CHECKER["dict"] = _check_dict
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145 choices = None
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146
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147 def _new_check_choice(self):
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148 if self.type == "dict":
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149 if self.choices is None:
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150 raise OptionValueError(
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151 "must supply a dictionary of choices for type 'dict'")
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152 elif not isinstance(self.choices, dict):
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153 raise OptionValueError(
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154 "choices must be a dictinary ('%s' supplied)"
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155 % str(type(self.choices)).split("'")[1])
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156 return
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157 self._check_choice()
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158
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159 # Have to override _check_choices so that we can parse
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160 # a dict through to check_dict
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161 CHECK_METHODS = Option.CHECK_METHODS
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162 CHECK_METHODS[2] = _new_check_choice
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163
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164
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165
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166
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167
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168 class DeOptionParser(OptionParser) :
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169 def __init__(self,
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170 usage=None,
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171 option_list=None,
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172 option_class=DeOption,
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173 version=None,
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174 conflict_handler="error",
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175 description=None,
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176 long_description = None,
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177 formatter=DeHelpFormatter(),
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178 add_help_option=True,
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179 prog=None,
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180 copyright=None,
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181 add_verbose_options=True,
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182 add_random_options=False
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183 ):
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184
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185 OptionParser.__init__(self,
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186 usage,
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187 option_list,
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188 option_class,
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189 version,
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190 conflict_handler,
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191 description,
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192 formatter,
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193 add_help_option,
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194 prog )
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195
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196 if long_description :
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197 self.long_description = long_description
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198 self.add_option("--doc",
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199 action="callback",
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200 callback=_doc_callback,
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201 help="Detailed documentation")
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202
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203 if copyright :
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204 self.copyright = copyright
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205 self.add_option("--copyright",
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206 action="callback",
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207 callback=_copyright_callback,
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208 help="")
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209
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210 if add_verbose_options :
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211 self.add_option("-q", "--quite",
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212 action="store_false",
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213 dest="verbose",
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214 default=False,
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215 help="Run quietly (default)")
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216
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217 self.add_option("-v", "--verbose",
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218 action="store_true",
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219 dest="verbose",
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220 default=False,
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221 help="Verbose output (Not quite)")
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222
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223 self.random_options = False
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224 if add_random_options :
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225 self.random_options = True
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226 self.add_option("--seed",
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227 action="store",
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228 type = "int",
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229 dest="random_seed",
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230 help="Initial seed for pseudo-random number generator. (default: System time)",
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231 metavar="INTEGER" )
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232
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233 self.add_option("--generator",
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234 action="store",
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235 dest="random_generator",
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236 default="MersenneTwister",
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237 help="Select MersenneTwister (default) or WichmannHill pseudo-random number generator",
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238 metavar="TYPE" )
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239
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240 def parse_args(self,args, values=None) :
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241 (options, args) = OptionParser.parse_args(self, args, values)
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242
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243 if self.random_options :
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244 if options.random_generator is None or options.random_generator =="MersenneTwister" :
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245 r = random.Random()
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246 elif options.random_generator == "WichmannHill" :
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247 r = random.WichmannHill()
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248 else :
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249 self.error("Acceptible generators are MersenneTwister (default) or WichmannHill")
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250 if options.random_seed :
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251 r.seed(options.random_seed)
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252
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253 options.__dict__["random"] = r
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254
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255
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256 return (options, args)
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257
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258 |