Mercurial > hg > decoupage
annotate decoupage/formatters.py @ 28:fc1c479296c3
more docmentation updates
author | k0s <k0scist@gmail.com> |
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date | Tue, 19 Jan 2010 09:15:35 -0500 |
parents | 9e86c5cb111a |
children | 527ccb76d043 |
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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 |
10 | 16 defaults = {} # default values for attrs to be set on the instance |
17 | |
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18 |
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19 def __init__(self, string): |
10 | 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 |
10 | 26 for key, default in self.defaults.items(): |
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:]]) |
10 | 31 for key, default in self.defaults.items(): |
32 value = self.kw.pop(key, default) | |
33 setattr(self, key, value) | |
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34 |
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35 |
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36 ### formatters |
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37 |
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38 class Ignore(object): |
27 | 39 """ |
28 | 40 ignore files of a glob patterns. |
41 These files will not be linked to in the template. | |
27 | 42 e.g. /ignore = .* *.pdf # don't list dotfiles and PDFs |
43 """ | |
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44 |
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45 |
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46 def __init__(self, ignore): |
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47 self.match = ignore.split() |
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48 |
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49 def __call__(self, request, data): |
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50 _files = [] |
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51 for f in data['files']: |
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52 for pattern in self.match: |
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53 if fnmatch(f['name'], pattern): |
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54 break |
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55 else: |
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56 _files.append(f) |
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57 data['files'] = _files |
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58 |
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59 |
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60 class All(object): |
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61 """ |
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62 only pass files of a certain pattern; |
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63 the inverse of ignore |
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64 calling all with no arguments means only files with descriptions are used |
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65 """ |
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66 |
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67 def __init__(self, pattern): |
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68 self.match = pattern.split() |
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69 |
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70 |
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71 def __call__(self, request, data): |
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72 _files = [] |
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73 for f in data['files']: |
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74 if self.match: |
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75 for pattern in self.match: |
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76 if fnmatch(f['name'], pattern): |
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77 _files.append(f) |
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78 break |
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79 else: |
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80 # use only files where the description is not None |
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81 if f['description'] is not None: |
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82 _files.append(f) |
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83 data['files'] = _files |
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84 |
22 | 85 class Sort(object): |
27 | 86 """ |
87 determines how to sort the files in a directory; | |
88 right now only by case-insensitive alphabetically | |
28 | 89 * reverse : reverse the order of the sorting |
27 | 90 """ |
22 | 91 def __init__(self, pattern): |
92 self.args = [i.strip() for i in pattern.split(',')] | |
93 | |
94 def __call__(self, request, data): | |
95 | |
96 data['files'] = sorted(data['files'], key=lambda x: x['name'].lower()) | |
97 | |
98 if 'reverse' in self.args: | |
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99 data['files'] = list(reversed(data['files'])) |
22 | 100 |
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101 |
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102 class FilenameDescription(FormatterBase): |
28 | 103 """ |
104 obtain the description from the filename | |
105 the file extension (if any) will be dropped and | |
106 spaces will be substituted for underscores | |
107 """ | |
108 # TODO : deal with CamelCaseFilenames | |
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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'] is None: |
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113 description = f['name'] |
28 | 114 if '.' in description: |
115 description = description.rsplit('.', 1)[0] | |
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116 decription = description.strip('_') |
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117 if '_' in description: |
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118 description = ' '.join([i.title() for i in description.split('_')]) |
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119 f['description'] = description |
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120 |
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121 |
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122 class TitleDescription(FormatterBase): |
28 | 123 """ |
124 splits a description into a title and a description via a separator in | |
125 the description. The template will now have an additional variable, | |
126 'title', per file | |
127 Arguments: | |
128 * separator: what separator to use (':' by default) | |
129 """ | |
130 # XXX what about setting the page title? | |
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131 |
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132 defaults = { 'separator': ':' } |
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133 |
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134 def __call__(self, request, data): |
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135 for f in data['files']: |
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136 if f['description'] and self.separator in f['description']: |
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137 title, description = f['description'].split(self.separator, 1) |
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138 f['title'] = title |
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139 f['description'] = description |
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140 else: |
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141 f['title'] = f['description'] |
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142 f['description'] = None |
10 | 143 |
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144 class CSS(object): |
28 | 145 """specify CSS used (whitespace separated list)""" |
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146 |
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147 def __init__(self, arg): |
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148 self.css = arg.split() |
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149 def __call__(self, request, data): |
24 | 150 data['css'] = self.css |
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151 |
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152 class Include(object): |
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153 """include a file at the top of the body""" |
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154 |
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155 def __init__(self, arg): |
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156 self.include = arg |
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157 def __call__(self, request, data): |
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158 data['include'] = self.include |
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159 |
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160 |
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161 def formatters(): |
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162 formatters = {} |
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163 for entry_point in iter_entry_points('decoupage.formatters'): |
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164 try: |
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165 formatter = entry_point.load() |
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166 except: |
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167 continue |
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168 formatters[entry_point.name] = formatter |
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169 return formatters |
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170 |
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171 def main(args=sys.argv[1:]): |
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172 for name, formatter in formatters().items(): |
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173 print '%s%s' % (name, formatter.__doc__ and ': ' + formatter.__doc__ or '') |
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174 |
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175 if __name__ == '__main__': |
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176 main() |