Mercurial > hg > decoupage
annotate decoupage/formatters.py @ 45:650e1b62a628
add order formatter (untested)
author | Jeff Hammel <jhammel@mozilla.com> |
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date | Wed, 08 Sep 2010 23:12:57 -0700 |
parents | 677e2fe1239c |
children | 8002dcdb8e82 |
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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 def __init__(self, string): |
10 | 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 |
10 | 25 for key, default in self.defaults.items(): |
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:]]) |
10 | 30 for key, default in self.defaults.items(): |
31 value = self.kw.pop(key, default) | |
32 setattr(self, key, value) | |
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33 |
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34 |
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35 ### formatters |
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36 |
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37 class Ignore(object): |
27 | 38 """ |
28 | 39 ignore files of a glob patterns. |
40 These files will not be linked to in the template. | |
27 | 41 e.g. /ignore = .* *.pdf # don't list dotfiles and PDFs |
42 """ | |
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43 |
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44 def __init__(self, ignore): |
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45 self.match = ignore.split() |
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46 |
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47 def __call__(self, request, data): |
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48 _files = [] |
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49 for f in data['files']: |
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50 for pattern in self.match: |
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51 if fnmatch(f['name'], pattern): |
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52 break |
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53 else: |
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54 _files.append(f) |
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55 data['files'] = _files |
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56 |
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57 |
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58 class All(object): |
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59 """ |
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60 only pass files of a certain pattern; |
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61 the inverse of ignore |
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62 calling all with no arguments means only files with descriptions are used |
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63 """ |
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64 |
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65 def __init__(self, pattern): |
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66 self.match = pattern.split() |
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67 |
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68 def __call__(self, request, data): |
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69 _files = [] |
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70 for f in data['files']: |
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71 if self.match: |
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72 for pattern in self.match: |
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73 if fnmatch(f['name'], pattern): |
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74 _files.append(f) |
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75 break |
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76 else: |
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77 # use only files where the description is not None |
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78 if f['description'] is not None: |
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79 _files.append(f) |
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80 data['files'] = _files |
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81 |
22 | 82 class Sort(object): |
27 | 83 """ |
84 determines how to sort the files in a directory; | |
85 right now only by case-insensitive alphabetically | |
28 | 86 * reverse : reverse the order of the sorting |
27 | 87 """ |
22 | 88 def __init__(self, pattern): |
89 self.args = [i.strip() for i in pattern.split(',')] | |
90 | |
91 def __call__(self, request, data): | |
92 | |
93 data['files'] = sorted(data['files'], key=lambda x: x['name'].lower()) | |
94 | |
95 if 'reverse' in self.args: | |
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96 data['files'] = list(reversed(data['files'])) |
22 | 97 |
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98 |
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99 class Order(object): |
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100 """ |
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101 put the files in a particular order |
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102 """ |
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103 def __init__(self, pattern): |
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104 if '=' in pattern: |
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105 key, value = pattern.split('=', 1) |
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106 assert key == 'file' |
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107 self.file = value |
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108 else: |
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109 self.order = [i.strip() for i in pattern.split(',')] |
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110 |
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111 def __call__(self, request, data): |
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112 |
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113 if self.file: |
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114 raise NotImplementedError |
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115 |
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116 files = [] |
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117 file_hash = dict([(i['name'], i) for i in data['files']]) |
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118 for f in self.order: |
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119 files.append(file_hash.get(f, None)) |
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120 files = [ i for i in files if i is not None ] |
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121 |
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122 |
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123 class FilenameDescription(FormatterBase): |
28 | 124 """ |
125 obtain the description from the filename | |
126 the file extension (if any) will be dropped and | |
127 spaces will be substituted for underscores | |
128 """ | |
129 # TODO : deal with CamelCaseFilenames | |
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130 |
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131 def __call__(self, request, data): |
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132 for f in data['files']: |
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133 if f['description'] is None: |
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134 description = f['name'] |
28 | 135 if '.' in description: |
136 description = description.rsplit('.', 1)[0] | |
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137 decription = description.strip('_') |
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138 if '_' in description: |
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139 description = ' '.join([i.title() for i in description.split('_')]) |
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140 f['description'] = description |
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141 |
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142 |
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143 class TitleDescription(FormatterBase): |
28 | 144 """ |
145 splits a description into a title and a description via a separator in | |
146 the description. The template will now have an additional variable, | |
147 'title', per file | |
148 Arguments: | |
149 * separator: what separator to use (':' by default) | |
150 """ | |
151 # XXX what about setting the page title? | |
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152 |
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153 defaults = { 'separator': ':' } |
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154 |
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155 def __call__(self, request, data): |
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156 for f in data['files']: |
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157 if f['description'] and self.separator in f['description']: |
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158 title, description = f['description'].split(self.separator, 1) |
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159 title = title.strip() |
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160 description = description.strip() |
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161 if not title: |
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162 title = f['name'] |
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163 f['title'] = title |
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164 f['description'] = description |
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165 else: |
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166 f['title'] = f['description'] |
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167 f['description'] = None |
10 | 168 |
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169 class Links(FormatterBase): |
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170 """ |
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171 allow list of links per item: |
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172 foo.html = description of foo; [PDF]=foo.pdf; [TXT]=foo.txt |
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173 """ |
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174 |
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175 defaults = { 'separator': ';' } |
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176 |
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177 def __call__(self, request, data): |
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178 for f in data['files']: |
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179 if f['description'] and self.separator in f['description']: |
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180 f['description'], links = f['description'].split(self.separator, 1) |
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181 links = links.split(self.separator) |
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182 assert min(['=' in link for link in links]) |
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183 links = [ link.split('=', 1) for link in links ] |
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184 f['links'] = [ { 'text': text, 'link': link } |
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185 for text, link in links ] |
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186 |
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187 |
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188 class Up(object): |
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189 """ |
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190 provides an up link to the path above: |
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191 /up = .. |
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192 """ |
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193 |
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194 def __init__(self, arg): |
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195 self.up = arg.strip() |
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196 |
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197 def __call__(self, request, data): |
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198 path = request.path_info |
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199 if (path != '/') and self.up: |
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200 data['files'].insert(0, {'path': '..', |
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201 'name': path.rsplit('/', 1)[0] + '/', |
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202 'description': self.up}) |
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203 |
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204 class CSS(object): |
28 | 205 """specify CSS used (whitespace separated list)""" |
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206 |
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207 def __init__(self, arg): |
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208 self.css = arg.split() |
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209 def __call__(self, request, data): |
24 | 210 data['css'] = self.css |
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211 |
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212 class JavaScript(object): |
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213 """specify JS for the page""" |
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214 |
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215 def __init__(self, arg): |
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216 self.scripts = arg.split() |
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217 def __call__(self, request, data): |
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218 data['scripts'] = self.scripts |
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219 |
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220 class Favicon(object): |
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221 """specify favicons for the page""" |
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222 |
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223 def __init__(self, icon): |
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224 self.icon = icon |
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225 def __call__(self, request, data): |
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226 data['icon'] = self.icon |
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227 |
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228 class Include(object): |
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229 """include a file at the top of the body""" |
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230 |
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231 def __init__(self, arg): |
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232 self.include = arg |
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233 def __call__(self, request, data): |
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234 data['include'] = self.include |
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235 |
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236 |
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237 def formatters(): |
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238 formatters = {} |
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239 for entry_point in iter_entry_points('decoupage.formatters'): |
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240 try: |
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241 formatter = entry_point.load() |
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242 except: |
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243 continue |
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244 formatters[entry_point.name] = formatter |
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245 return formatters |
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246 |
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247 def main(args=sys.argv[1:]): |
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248 for name, formatter in formatters().items(): |
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249 print '%s%s' % (name, formatter.__doc__ and ': ' + formatter.__doc__ or '') |
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250 |
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251 if __name__ == '__main__': |
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252 main() |