Mercurial > hg > decoupage

annotate decoupage/formatters.py @ 27:9e86c5cb111a

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minor documentation updates
author k0s <k0scist@gmail.com>
date Mon, 18 Jan 2010 15:33:42 -0500
parents 6b27461955d1
children fc1c479296c3
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1 #!/usr/bin/env python
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2
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3 import sys
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4 from fnmatch import fnmatch
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5 from pkg_resources import iter_entry_points
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7 ### abstract base classes for formatters
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8
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9 class FormatterBase(object):
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10 """
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11 abstract base class if you want to use __init__ methods
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12 in the form of
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13 'arg1, arg2, arg3, kw1=foo, kw2=bar, kw3=baz
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14 """
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15
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16 defaults = {} # default values for attrs to be set on the instance
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19 def __init__(self, string):
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20 args = [ i.strip() for i in string.split(',')]
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21 for index, arg in enumerate(args):
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22 if '=' in arg:
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23 break
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24 else:
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25 self.args = args
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26 for key, default in self.defaults.items():
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27 setattr(self, key, default)
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28 return
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29 self.args = args[:index]
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30 self.kw = dict([i.split('=', 1) for i in args[index:]])
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31 for key, default in self.defaults.items():
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32 value = self.kw.pop(key, default)
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33 setattr(self, key, value)
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35
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36 ### formatters
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37
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38 class Ignore(object):
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39 """
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40 ignore files of a glob patterns. These files will not be used in the index template.
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41 e.g. /ignore = .* *.pdf # don't list dotfiles and PDFs
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42 """
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45 def __init__(self, ignore):
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46 self.match = ignore.split()
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48 def __call__(self, request, data):
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49 _files = []
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50 for f in data['files']:
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51 for pattern in self.match:
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52 if fnmatch(f['name'], pattern):
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53 break
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54 else:
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55 _files.append(f)
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56 data['files'] = _files
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59 class All(object):
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60 """
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61 only pass files of a certain pattern;
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62 the inverse of ignore
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63 calling all with no arguments means only files with descriptions are used
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64 """
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66 def __init__(self, pattern):
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67 self.match = pattern.split()
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70 def __call__(self, request, data):
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71 _files = []
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72 for f in data['files']:
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73 if self.match:
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74 for pattern in self.match:
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75 if fnmatch(f['name'], pattern):
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76 _files.append(f)
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77 break
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78 else:
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79 # use only files where the description is not None
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80 if f['description'] is not None:
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81 _files.append(f)
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82 data['files'] = _files
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83
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84 class Sort(object):
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85 """
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86 determines how to sort the files in a directory;
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87 right now only by case-insensitive alphabetically
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88 * reverse : reverse the
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89 """
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90 def __init__(self, pattern):
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91 self.args = [i.strip() for i in pattern.split(',')]
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92
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93 def __call__(self, request, data):
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94
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95 data['files'] = sorted(data['files'], key=lambda x: x['name'].lower())
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96
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97 if 'reverse' in self.args:
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98 data['files'] = list(reversed(data['files']))
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99
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101 class FilenameDescription(FormatterBase):
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102 """substitute the description for the filename"""
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104 def __call__(self, request, data):
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105 for f in data['files']:
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106 if f['description'] is None:
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107 description = f['name']
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108 description = description.rsplit('.', 1)[0]
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109 decription = description.strip('_')
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110 if '_' in description:
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111 description = ' '.join([i.title() for i in description.split('_')])
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112 f['description'] = description
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115 class TitleDescription(FormatterBase):
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116 """splits a description into a title and a description with a separator"""
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117
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118
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119 defaults = { 'separator': ':' }
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120
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121 def __call__(self, request, data):
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122 for f in data['files']:
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123 if f['description'] and self.separator in f['description']:
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124 title, description = f['description'].split(self.separator, 1)
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125 f['title'] = title
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126 f['description'] = description
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127 else:
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128 f['title'] = f['description']
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129 f['description'] = None
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130
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131 class CSS(object):
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132 """specify CSS"""
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133
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134 def __init__(self, arg):
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135 self.css = arg.split()
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136 def __call__(self, request, data):
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137 data['css'] = self.css
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138
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139 class Include(object):
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140 """include a file at the top of the body"""
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141
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142 def __init__(self, arg):
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143 self.include = arg
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144 def __call__(self, request, data):
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145 data['include'] = self.include
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146
0
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147
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148 def formatters():
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149 formatters = {}
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150 for entry_point in iter_entry_points('decoupage.formatters'):
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151 try:
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152 formatter = entry_point.load()
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153 except:
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154 continue
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155 formatters[entry_point.name] = formatter
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156 return formatters
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157
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158 def main(args=sys.argv[1:]):
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159 for name, formatter in formatters().items():
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160 print '%s%s' % (name, formatter.__doc__ and ': ' + formatter.__doc__ or '')
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161
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162 if __name__ == '__main__':
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163 main()