Mercurial > kallithea

annotate rhodecode/lib/annotate.py @ 3181:efe23d6c178c rhodecode-0.0.1.5.2

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
merged with beta
author Marcin Kuzminski <marcin@python-works.com>
date Mon, 21 Jan 2013 00:49:59 +0100
parents c57a37430dc9
children 7000fc4aa569
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1 # -*- coding: utf-8 -*-
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2 """
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3 rhodecode.lib.annotate
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4 ~~~~~~~~~~~~~~~~~~~~~~
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5
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6 Anontation library for usage in rhodecode, previously part of vcs
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7
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8 :created_on: Dec 4, 2011
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9 :author: marcink
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89efedac4e6c 2012 copyrights
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10 :copyright: (C) 2011-2012 Marcin Kuzminski <marcin@python-works.com>
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11 :license: GPLv3, see COPYING for more details.
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12 """
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13
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14 from rhodecode.lib.vcs.exceptions import VCSError
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15 from rhodecode.lib.vcs.nodes import FileNode
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16 from pygments.formatters import HtmlFormatter
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17 from pygments import highlight
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18
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19 import StringIO
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20
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21
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22 def annotate_highlight(filenode, annotate_from_changeset_func=None,
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23 order=None, headers=None, **options):
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24 """
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25 Returns html portion containing annotated table with 3 columns: line
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26 numbers, changeset information and pygmentized line of code.
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27
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28 :param filenode: FileNode object
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29 :param annotate_from_changeset_func: function taking changeset and
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30 returning single annotate cell; needs break line at the end
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31 :param order: ordered sequence of ``ls`` (line numbers column),
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32 ``annotate`` (annotate column), ``code`` (code column); Default is
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33 ``['ls', 'annotate', 'code']``
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34 :param headers: dictionary with headers (keys are whats in ``order``
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35 parameter)
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36 """
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37 options['linenos'] = True
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38 formatter = AnnotateHtmlFormatter(filenode=filenode, order=order,
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39 headers=headers,
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40 annotate_from_changeset_func=annotate_from_changeset_func, **options)
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41 lexer = filenode.lexer
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42 highlighted = highlight(filenode.content, lexer, formatter)
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43 return highlighted
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44
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45
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46 class AnnotateHtmlFormatter(HtmlFormatter):
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47
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48 def __init__(self, filenode, annotate_from_changeset_func=None,
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49 order=None, **options):
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50 """
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51 If ``annotate_from_changeset_func`` is passed it should be a function
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52 which returns string from the given changeset. For example, we may pass
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53 following function as ``annotate_from_changeset_func``::
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54
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55 def changeset_to_anchor(changeset):
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56 return '<a href="/changesets/%s/">%s</a>\n' %\
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57 (changeset.id, changeset.id)
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58
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59 :param annotate_from_changeset_func: see above
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60 :param order: (default: ``['ls', 'annotate', 'code']``); order of
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61 columns;
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62 :param options: standard pygment's HtmlFormatter options, there is
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63 extra option tough, ``headers``. For instance we can pass::
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64
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65 formatter = AnnotateHtmlFormatter(filenode, headers={
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66 'ls': '#',
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67 'annotate': 'Annotate',
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68 'code': 'Code',
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69 })
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70
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71 """
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72 super(AnnotateHtmlFormatter, self).__init__(**options)
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73 self.annotate_from_changeset_func = annotate_from_changeset_func
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74 self.order = order or ('ls', 'annotate', 'code')
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75 headers = options.pop('headers', None)
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76 if headers and not ('ls' in headers and 'annotate' in headers and
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77 'code' in headers):
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78 raise ValueError("If headers option dict is specified it must "
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79 "all 'ls', 'annotate' and 'code' keys")
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80 self.headers = headers
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81 if isinstance(filenode, FileNode):
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82 self.filenode = filenode
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83 else:
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84 raise VCSError("This formatter expect FileNode parameter, not %r"
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85 % type(filenode))
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86
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87 def annotate_from_changeset(self, changeset):
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88 """
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89 Returns full html line for single changeset per annotated line.
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90 """
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91 if self.annotate_from_changeset_func:
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92 return self.annotate_from_changeset_func(changeset)
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93 else:
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94 return ''.join((changeset.id, '\n'))
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95
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96 def _wrap_tablelinenos(self, inner):
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97 dummyoutfile = StringIO.StringIO()
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98 lncount = 0
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99 for t, line in inner:
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100 if t:
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101 lncount += 1
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102 dummyoutfile.write(line)
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103
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104 fl = self.linenostart
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105 mw = len(str(lncount + fl - 1))
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106 sp = self.linenospecial
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107 st = self.linenostep
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108 la = self.lineanchors
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109 aln = self.anchorlinenos
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110 if sp:
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111 lines = []
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112
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113 for i in range(fl, fl + lncount):
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114 if i % st == 0:
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115 if i % sp == 0:
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116 if aln:
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117 lines.append('<a href="#%s-%d" class="special">'
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118 '%*d</a>' %
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119 (la, i, mw, i))
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120 else:
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121 lines.append('<span class="special">'
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122 '%*d</span>' % (mw, i))
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123 else:
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124 if aln:
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125 lines.append('<a href="#%s-%d">'
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126 '%*d</a>' % (la, i, mw, i))
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127 else:
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128 lines.append('%*d' % (mw, i))
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129 else:
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130 lines.append('')
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131 ls = '\n'.join(lines)
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132 else:
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133 lines = []
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134 for i in range(fl, fl + lncount):
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135 if i % st == 0:
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136 if aln:
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137 lines.append('<a href="#%s-%d">%*d</a>' \
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138 % (la, i, mw, i))
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139 else:
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140 lines.append('%*d' % (mw, i))
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141 else:
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142 lines.append('')
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143 ls = '\n'.join(lines)
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144
3044
c57a37430dc9 fixes #652 switch to generator approach when doing file annotation to prevent huge memory consumption when executed on large files. Thanks to ALexey Larikov for patch.
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145 # annotate_changesets = [tup[1] for tup in self.filenode.annotate]
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146 ## TODO: not sure what that fixes
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147 # # If pygments cropped last lines break we need do that too
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148 # ln_cs = len(annotate_changesets)
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149 # ln_ = len(ls.splitlines())
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150 # if ln_cs > ln_:
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151 # annotate_changesets = annotate_changesets[:ln_ - ln_cs]
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152 annotate = ''.join((self.annotate_from_changeset(el[2]())
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153 for el in self.filenode.annotate))
1753
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154 # in case you wonder about the seemingly redundant <div> here:
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155 # since the content in the other cell also is wrapped in a div,
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156 # some browsers in some configurations seem to mess up the formatting.
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157 '''
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158 yield 0, ('<table class="%stable">' % self.cssclass +
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159 '<tr><td class="linenos"><div class="linenodiv"><pre>' +
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160 ls + '</pre></div></td>' +
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161 '<td class="code">')
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162 yield 0, dummyoutfile.getvalue()
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163 yield 0, '</td></tr></table>'
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164
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165 '''
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166 headers_row = []
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167 if self.headers:
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168 headers_row = ['<tr class="annotate-header">']
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169 for key in self.order:
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170 td = ''.join(('<td>', self.headers[key], '</td>'))
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171 headers_row.append(td)
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172 headers_row.append('</tr>')
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173
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174 body_row_start = ['<tr>']
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175 for key in self.order:
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176 if key == 'ls':
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177 body_row_start.append(
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178 '<td class="linenos"><div class="linenodiv"><pre>' +
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179 ls + '</pre></div></td>')
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180 elif key == 'annotate':
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181 body_row_start.append(
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182 '<td class="annotate"><div class="annotatediv"><pre>' +
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183 annotate + '</pre></div></td>')
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184 elif key == 'code':
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185 body_row_start.append('<td class="code">')
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186 yield 0, ('<table class="%stable">' % self.cssclass +
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187 ''.join(headers_row) +
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188 ''.join(body_row_start)
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189 )
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190 yield 0, dummyoutfile.getvalue()
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191 yield 0, '</td></tr></table>'