Mercurial > hg > decoupage

annotate decoupage/formatters.py @ 32:983c13e1b71f

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included a links formatter; restructure index template
author k0s <k0scist@gmail.com>
date Mon, 08 Feb 2010 11:10:54 -0500
parents 6b27461955d1
children e384d4569ac3
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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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6
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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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17
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18 def __init__(self, string):
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19 args = [ i.strip() for i in string.split(',')]
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20 for index, arg in enumerate(args):
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21 if '=' in arg:
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22 break
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23 else:
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24 self.args = args
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25 for key, default in self.defaults.items():
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26 setattr(self, key, default)
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27 return
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28 self.args = args[:index]
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29 self.kw = dict([i.split('=', 1) for i in args[index:]])
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30 for key, default in self.defaults.items():
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31 value = self.kw.pop(key, default)
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32 setattr(self, key, value)
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34
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35 ### formatters
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36
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37 class Ignore(object):
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38 """ignore files of a certain pattern"""
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39
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40 def __init__(self, ignore):
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41 self.match = ignore.split()
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43 def __call__(self, request, data):
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44 _files = []
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45 for f in data['files']:
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46 for pattern in self.match:
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47 if fnmatch(f['name'], pattern):
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48 break
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49 else:
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50 _files.append(f)
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51 data['files'] = _files
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52
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53
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54 class All(object):
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55 """
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56 only pass files of a certain pattern;
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57 the inverse of ignore
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58 calling all with no arguments means only files with descriptions are used
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59 """
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60
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61 def __init__(self, pattern):
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62 self.match = pattern.split()
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64 def __call__(self, request, data):
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65 _files = []
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66 for f in data['files']:
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67 if self.match:
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68 for pattern in self.match:
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69 if fnmatch(f['name'], pattern):
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70 _files.append(f)
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71 break
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72 else:
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73 # use only files where the description is not None
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74 if f['description'] is not None:
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75 _files.append(f)
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76 data['files'] = _files
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77
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78 class Sort(object):
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79 """ determines how to sort the files in a directory """
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80 def __init__(self, pattern):
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81 self.args = [i.strip() for i in pattern.split(',')]
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82
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83 def __call__(self, request, data):
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84
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85 data['files'] = sorted(data['files'], key=lambda x: x['name'].lower())
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86
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87 if 'reverse' in self.args:
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88 data['files'] = list(reversed(data['files']))
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89
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91 class FilenameDescription(FormatterBase):
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92 """substitute the description for the filename"""
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94 def __call__(self, request, data):
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95 for f in data['files']:
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96 if f['description'] is None:
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97 description = f['name']
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98 description = description.rsplit('.', 1)[0]
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99 decription = description.strip('_')
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100 if '_' in description:
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101 description = ' '.join([i.title() for i in description.split('_')])
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102 f['description'] = description
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103
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104
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105 class TitleDescription(FormatterBase):
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106 """splits a description into a title and a description with a separator"""
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107
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108 defaults = { 'separator': ':' }
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109
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110 def __call__(self, request, data):
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111 for f in data['files']:
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112 if f['description'] and self.separator in f['description']:
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113 title, description = f['description'].split(self.separator, 1)
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114 f['title'] = title
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115 f['description'] = description
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116 else:
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117 f['title'] = f['description']
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118 f['description'] = None
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119
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120 class Links(FormatterBase):
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121 """
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122 allow list of links per item:
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123 foo.html = description of foo; [PDF]=foo.pdf; [TXT]=foo.txt
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124 """
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125
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126 defaults = { 'separator': ';' }
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127
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128 def __call__(self, request, data):
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129 for f in data['files']:
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130 if f['description'] and self.separator in f['description']:
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131 f['description'], links = f['description'].split(self.separator, 1)
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132 links = links.split(self.separator)
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133 assert min(['=' in link for link in links])
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134 links = [ link.split('=', 1) for link in links ]
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135 f['links'] = [ { 'text': text, 'link': link }
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136 for text, link in links ]
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137
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138 class CSS(object):
32
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139 """specify CSS for the page"""
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140
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141 def __init__(self, arg):
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142 self.css = arg.split()
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143 def __call__(self, request, data):
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144 data['css'] = self.css
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145
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146 class Include(object):
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147 """include a file at the top of the body"""
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148
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149 def __init__(self, arg):
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150 self.include = arg
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151 def __call__(self, request, data):
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152 data['include'] = self.include
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153
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154
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155 def formatters():
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156 formatters = {}
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157 for entry_point in iter_entry_points('decoupage.formatters'):
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158 try:
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159 formatter = entry_point.load()
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160 except:
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161 continue
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162 formatters[entry_point.name] = formatter
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163 return formatters
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164
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165 def main(args=sys.argv[1:]):
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166 for name, formatter in formatters().items():
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167 print '%s%s' % (name, formatter.__doc__ and ': ' + formatter.__doc__ or '')
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168
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169 if __name__ == '__main__':
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170 main()