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annotate mercurial/templatefilters.py @ 8591:08c93b07f5ad

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templatefilters: add filter to convert date to local date (issue1674) Issue1674 suggests the localdate filter be applied as default to log, but this patch only introduces the filter, not the changed default behaviour.
author Henrik Stuart <hg@hstuart.dk>
date Sun, 24 May 2009 11:41:07 +0200
parents beae42f3d93b
children 3d53820381cb
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
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1 # template-filters.py - common template expansion filters
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2 #
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3 # Copyright 2005-2008 Matt Mackall <mpm@selenic.com>
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4 #
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5 # This software may be used and distributed according to the terms of the
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6 # GNU General Public License version 2, incorporated herein by reference.
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7
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8 import cgi, re, os, time, urllib, textwrap
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9 import util, encoding
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10
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11 def stringify(thing):
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12 '''turn nested template iterator into string.'''
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13 if hasattr(thing, '__iter__') and not isinstance(thing, str):
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14 return "".join([stringify(t) for t in thing if t is not None])
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15 return str(thing)
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16
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17 agescales = [("second", 1),
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18 ("minute", 60),
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19 ("hour", 3600),
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20 ("day", 3600 * 24),
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21 ("week", 3600 * 24 * 7),
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22 ("month", 3600 * 24 * 30),
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23 ("year", 3600 * 24 * 365)]
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24
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25 agescales.reverse()
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26
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27 def age(date):
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28 '''turn a (timestamp, tzoff) tuple into an age string.'''
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29
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30 def plural(t, c):
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31 if c == 1:
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32 return t
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33 return t + "s"
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34 def fmt(t, c):
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35 return "%d %s" % (c, plural(t, c))
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36
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37 now = time.time()
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38 then = date[0]
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39 if then > now:
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40 return 'in the future'
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41
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42 delta = max(1, int(now - then))
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43 for t, s in agescales:
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44 n = delta / s
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45 if n >= 2 or s == 1:
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46 return fmt(t, n)
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47
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48 para_re = None
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49 space_re = None
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50
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51 def fill(text, width):
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52 '''fill many paragraphs.'''
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53 global para_re, space_re
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54 if para_re is None:
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55 para_re = re.compile('(\n\n|\n\\s*[-*]\\s*)', re.M)
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56 space_re = re.compile(r' +')
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57
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58 def findparas():
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59 start = 0
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60 while True:
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61 m = para_re.search(text, start)
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62 if not m:
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63 w = len(text)
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64 while w > start and text[w-1].isspace(): w -= 1
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65 yield text[start:w], text[w:]
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66 break
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67 yield text[start:m.start(0)], m.group(1)
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68 start = m.end(1)
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69
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70 return "".join([space_re.sub(' ', textwrap.fill(para, width)) + rest
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71 for para, rest in findparas()])
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72
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73 def firstline(text):
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74 '''return the first line of text'''
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75 try:
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76 return text.splitlines(1)[0].rstrip('\r\n')
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77 except IndexError:
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78 return ''
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79
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80 def nl2br(text):
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81 '''replace raw newlines with xhtml line breaks.'''
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82 return text.replace('\n', '<br/>\n')
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83
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84 def obfuscate(text):
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85 text = unicode(text, encoding.encoding, 'replace')
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86 return ''.join(['&#%d;' % ord(c) for c in text])
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87
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88 def domain(author):
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89 '''get domain of author, or empty string if none.'''
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90 f = author.find('@')
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91 if f == -1: return ''
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92 author = author[f+1:]
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93 f = author.find('>')
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94 if f >= 0: author = author[:f]
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95 return author
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96
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97 def person(author):
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98 '''get name of author, or else username.'''
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99 f = author.find('<')
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100 if f == -1: return util.shortuser(author)
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101 return author[:f].rstrip()
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102
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103 def indent(text, prefix):
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104 '''indent each non-empty line of text after first with prefix.'''
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105 lines = text.splitlines()
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106 num_lines = len(lines)
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107 def indenter():
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108 for i in xrange(num_lines):
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109 l = lines[i]
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110 if i and l.strip():
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111 yield prefix
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112 yield l
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113 if i < num_lines - 1 or text.endswith('\n'):
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114 yield '\n'
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115 return "".join(indenter())
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116
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117 def permissions(flags):
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118 if "l" in flags:
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119 return "lrwxrwxrwx"
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120 if "x" in flags:
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121 return "-rwxr-xr-x"
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122 return "-rw-r--r--"
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123
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124 def xmlescape(text):
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125 text = (text
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126 .replace('&', '&amp;')
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127 .replace('<', '&lt;')
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128 .replace('>', '&gt;')
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129 .replace('"', '&quot;')
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130 .replace("'", '&#39;')) # &apos; invalid in HTML
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131 return re.sub('[\x00-\x08\x0B\x0C\x0E-\x1F]', ' ', text)
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132
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133 _escapes = [
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134 ('\\', '\\\\'), ('"', '\\"'), ('\t', '\\t'), ('\n', '\\n'),
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135 ('\r', '\\r'), ('\f', '\\f'), ('\b', '\\b'),
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136 ]
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137
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138 def jsonescape(s):
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139 for k, v in _escapes:
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140 s = s.replace(k, v)
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141 return s
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142
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143 def json(obj):
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144 if obj is None or obj is False or obj is True:
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145 return {None: 'null', False: 'false', True: 'true'}[obj]
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146 elif isinstance(obj, int) or isinstance(obj, float):
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147 return str(obj)
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148 elif isinstance(obj, str):
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149 return '"%s"' % jsonescape(obj)
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150 elif isinstance(obj, unicode):
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151 return json(obj.encode('utf-8'))
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152 elif hasattr(obj, 'keys'):
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153 out = []
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154 for k, v in obj.iteritems():
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155 s = '%s: %s' % (json(k), json(v))
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156 out.append(s)
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157 return '{' + ', '.join(out) + '}'
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158 elif hasattr(obj, '__iter__'):
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159 out = []
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160 for i in obj:
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161 out.append(json(i))
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162 return '[' + ', '.join(out) + ']'
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163 else:
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164 raise TypeError('cannot encode type %s' % obj.__class__.__name__)
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165
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166 def stripdir(text):
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167 '''Treat the text as path and strip a directory level, if possible.'''
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168 dir = os.path.dirname(text)
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169 if dir == "":
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170 return os.path.basename(text)
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171 else:
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172 return dir
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173
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174 def nonempty(str):
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175 return str or "(none)"
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176
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177 filters = {
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178 "addbreaks": nl2br,
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179 "basename": os.path.basename,
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180 "stripdir": stripdir,
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181 "age": age,
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182 "date": lambda x: util.datestr(x),
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183 "domain": domain,
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184 "email": util.email,
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185 "escape": lambda x: cgi.escape(x, True),
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186 "fill68": lambda x: fill(x, width=68),
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187 "fill76": lambda x: fill(x, width=76),
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188 "firstline": firstline,
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189 "tabindent": lambda x: indent(x, '\t'),
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190 "hgdate": lambda x: "%d %d" % x,
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191 "isodate": lambda x: util.datestr(x, '%Y-%m-%d %H:%M %1%2'),
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192 "isodatesec": lambda x: util.datestr(x, '%Y-%m-%d %H:%M:%S %1%2'),
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193 "json": json,
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194 "jsonescape": jsonescape,
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195 "localdate": lambda x: (x[0], util.makedate()[1]),
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196 "nonempty": nonempty,
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197 "obfuscate": obfuscate,
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198 "permissions": permissions,
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199 "person": person,
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200 "rfc822date": lambda x: util.datestr(x, "%a, %d %b %Y %H:%M:%S %1%2"),
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201 "rfc3339date": lambda x: util.datestr(x, "%Y-%m-%dT%H:%M:%S%1:%2"),
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202 "short": lambda x: x[:12],
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203 "shortdate": util.shortdate,
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204 "stringify": stringify,
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205 "strip": lambda x: x.strip(),
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206 "urlescape": lambda x: urllib.quote(x),
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207 "user": lambda x: util.shortuser(x),
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208 "stringescape": lambda x: x.encode('string_escape'),
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209 "xmlescape": xmlescape,
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210 }