Mercurial > hg
annotate mercurial/templatefilters.py @ 20137:9f1d4323c749
patch: add support for git delta hunks
When creating patches modifying binary files using "git format-patch",
git creates 'literal' and 'delta' hunks. Mercurial currently supports
'literal' hunks only, which makes it impossible to import patches with
'delta' hunks.
This changeset adds support for 'delta' hunks. It is a reimplementation
of patch-delta.c from git :
http://git.kernel.org/cgit/git/git.git/tree/patch-delta.c
author | Nicolas Vigier <boklm@mars-attacks.org> |
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date | Wed, 27 Nov 2013 18:39:00 +0100 |
parents | e828975722c8 |
children | cce404b0c918 829f2dd99f5c |
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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 |
10263 | 6 # GNU General Public License version 2 or any later version. |
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7 |
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8 import cgi, re, os, time, urllib |
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9 import encoding, node, util |
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10 import hbisect |
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11 |
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12 def addbreaks(text): |
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13 """:addbreaks: Any text. Add an XHTML "<br />" tag before the end of |
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14 every line except the last. |
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15 """ |
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16 return text.replace('\n', '<br/>\n') |
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17 |
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18 agescales = [("year", 3600 * 24 * 365, 'Y'), |
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19 ("month", 3600 * 24 * 30, 'M'), |
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20 ("week", 3600 * 24 * 7, 'W'), |
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21 ("day", 3600 * 24, 'd'), |
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22 ("hour", 3600, 'h'), |
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23 ("minute", 60, 'm'), |
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24 ("second", 1, 's')] |
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25 |
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26 def age(date, abbrev=False): |
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27 """:age: Date. Returns a human-readable date/time difference between the |
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28 given date/time and the current date/time. |
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29 """ |
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30 |
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31 def plural(t, c): |
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32 if c == 1: |
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33 return t |
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34 return t + "s" |
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35 def fmt(t, c, a): |
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36 if abbrev: |
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37 return "%d%s" % (c, a) |
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38 return "%d %s" % (c, plural(t, c)) |
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39 |
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40 now = time.time() |
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41 then = date[0] |
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42 future = False |
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43 if then > now: |
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44 future = True |
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45 delta = max(1, int(then - now)) |
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46 if delta > agescales[0][1] * 30: |
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47 return 'in the distant future' |
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48 else: |
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49 delta = max(1, int(now - then)) |
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50 if delta > agescales[0][1] * 2: |
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51 return util.shortdate(date) |
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52 |
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53 for t, s, a in agescales: |
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54 n = delta // s |
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55 if n >= 2 or s == 1: |
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56 if future: |
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57 return '%s from now' % fmt(t, n, a) |
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58 return '%s ago' % fmt(t, n, a) |
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59 |
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60 def basename(path): |
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61 """:basename: Any text. Treats the text as a path, and returns the last |
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62 component of the path after splitting by the path separator |
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63 (ignoring trailing separators). For example, "foo/bar/baz" becomes |
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64 "baz" and "foo/bar//" becomes "bar". |
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65 """ |
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66 return os.path.basename(path) |
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67 |
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68 def datefilter(text): |
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69 """:date: Date. Returns a date in a Unix date format, including the |
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70 timezone: "Mon Sep 04 15:13:13 2006 0700". |
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71 """ |
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72 return util.datestr(text) |
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73 |
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74 def domain(author): |
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75 """:domain: Any text. Finds the first string that looks like an email |
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76 address, and extracts just the domain component. Example: ``User |
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77 <user@example.com>`` becomes ``example.com``. |
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78 """ |
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79 f = author.find('@') |
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80 if f == -1: |
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81 return '' |
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82 author = author[f + 1:] |
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83 f = author.find('>') |
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84 if f >= 0: |
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85 author = author[:f] |
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86 return author |
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87 |
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88 def email(text): |
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89 """:email: Any text. Extracts the first string that looks like an email |
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90 address. Example: ``User <user@example.com>`` becomes |
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91 ``user@example.com``. |
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92 """ |
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93 return util.email(text) |
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94 |
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95 def escape(text): |
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96 """:escape: Any text. Replaces the special XML/XHTML characters "&", "<" |
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97 and ">" with XML entities, and filters out NUL characters. |
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98 """ |
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99 return cgi.escape(text.replace('\0', ''), True) |
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100 |
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101 para_re = None |
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102 space_re = None |
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103 |
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104 def fill(text, width, initindent='', hangindent=''): |
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105 '''fill many paragraphs with optional indentation.''' |
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106 global para_re, space_re |
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107 if para_re is None: |
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108 para_re = re.compile('(\n\n|\n\\s*[-*]\\s*)', re.M) |
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109 space_re = re.compile(r' +') |
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110 |
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111 def findparas(): |
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112 start = 0 |
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113 while True: |
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114 m = para_re.search(text, start) |
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115 if not m: |
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116 uctext = unicode(text[start:], encoding.encoding) |
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117 w = len(uctext) |
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118 while 0 < w and uctext[w - 1].isspace(): |
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119 w -= 1 |
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120 yield (uctext[:w].encode(encoding.encoding), |
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121 uctext[w:].encode(encoding.encoding)) |
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122 break |
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123 yield text[start:m.start(0)], m.group(1) |
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124 start = m.end(1) |
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125 |
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126 return "".join([util.wrap(space_re.sub(' ', util.wrap(para, width)), |
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127 width, initindent, hangindent) + rest |
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128 for para, rest in findparas()]) |
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129 |
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130 def fill68(text): |
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131 """:fill68: Any text. Wraps the text to fit in 68 columns.""" |
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132 return fill(text, 68) |
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133 |
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134 def fill76(text): |
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135 """:fill76: Any text. Wraps the text to fit in 76 columns.""" |
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136 return fill(text, 76) |
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137 |
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138 def firstline(text): |
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139 """:firstline: Any text. Returns the first line of text.""" |
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140 try: |
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141 return text.splitlines(True)[0].rstrip('\r\n') |
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142 except IndexError: |
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143 return '' |
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144 |
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145 def hexfilter(text): |
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146 """:hex: Any text. Convert a binary Mercurial node identifier into |
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147 its long hexadecimal representation. |
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148 """ |
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149 return node.hex(text) |
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150 |
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151 def hgdate(text): |
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152 """:hgdate: Date. Returns the date as a pair of numbers: "1157407993 |
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153 25200" (Unix timestamp, timezone offset). |
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154 """ |
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155 return "%d %d" % text |
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156 |
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157 def isodate(text): |
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158 """:isodate: Date. Returns the date in ISO 8601 format: "2009-08-18 13:00 |
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159 +0200". |
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160 """ |
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161 return util.datestr(text, '%Y-%m-%d %H:%M %1%2') |
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162 |
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163 def isodatesec(text): |
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164 """:isodatesec: Date. Returns the date in ISO 8601 format, including |
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165 seconds: "2009-08-18 13:00:13 +0200". See also the rfc3339date |
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166 filter. |
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167 """ |
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168 return util.datestr(text, '%Y-%m-%d %H:%M:%S %1%2') |
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169 |
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170 def indent(text, prefix): |
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171 '''indent each non-empty line of text after first with prefix.''' |
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172 lines = text.splitlines() |
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173 num_lines = len(lines) |
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174 endswithnewline = text[-1:] == '\n' |
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175 def indenter(): |
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176 for i in xrange(num_lines): |
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177 l = lines[i] |
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178 if i and l.strip(): |
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179 yield prefix |
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180 yield l |
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181 if i < num_lines - 1 or endswithnewline: |
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182 yield '\n' |
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183 return "".join(indenter()) |
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184 |
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185 def json(obj): |
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186 if obj is None or obj is False or obj is True: |
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187 return {None: 'null', False: 'false', True: 'true'}[obj] |
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188 elif isinstance(obj, int) or isinstance(obj, float): |
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189 return str(obj) |
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190 elif isinstance(obj, str): |
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191 u = unicode(obj, encoding.encoding, 'replace') |
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192 return '"%s"' % jsonescape(u) |
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193 elif isinstance(obj, unicode): |
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194 return '"%s"' % jsonescape(obj) |
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195 elif util.safehasattr(obj, 'keys'): |
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196 out = [] |
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197 for k, v in obj.iteritems(): |
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198 s = '%s: %s' % (json(k), json(v)) |
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199 out.append(s) |
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200 return '{' + ', '.join(out) + '}' |
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201 elif util.safehasattr(obj, '__iter__'): |
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202 out = [] |
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203 for i in obj: |
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204 out.append(json(i)) |
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205 return '[' + ', '.join(out) + ']' |
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206 else: |
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207 raise TypeError('cannot encode type %s' % obj.__class__.__name__) |
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208 |
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209 def _uescape(c): |
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210 if ord(c) < 0x80: |
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211 return c |
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212 else: |
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213 return '\\u%04x' % ord(c) |
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214 |
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215 _escapes = [ |
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216 ('\\', '\\\\'), ('"', '\\"'), ('\t', '\\t'), ('\n', '\\n'), |
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217 ('\r', '\\r'), ('\f', '\\f'), ('\b', '\\b'), |
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218 ('<', '\\u003c'), ('>', '\\u003e') |
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219 ] |
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220 |
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221 def jsonescape(s): |
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222 for k, v in _escapes: |
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223 s = s.replace(k, v) |
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224 return ''.join(_uescape(c) for c in s) |
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225 |
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226 def localdate(text): |
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227 """:localdate: Date. Converts a date to local date.""" |
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228 return (util.parsedate(text)[0], util.makedate()[1]) |
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229 |
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230 def nonempty(str): |
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231 """:nonempty: Any text. Returns '(none)' if the string is empty.""" |
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232 return str or "(none)" |
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233 |
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234 def obfuscate(text): |
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235 """:obfuscate: Any text. Returns the input text rendered as a sequence of |
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236 XML entities. |
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237 """ |
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238 text = unicode(text, encoding.encoding, 'replace') |
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239 return ''.join(['&#%d;' % ord(c) for c in text]) |
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240 |
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241 def permissions(flags): |
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242 if "l" in flags: |
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243 return "lrwxrwxrwx" |
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244 if "x" in flags: |
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245 return "-rwxr-xr-x" |
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246 return "-rw-r--r--" |
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247 |
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248 def person(author): |
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249 """:person: Any text. Returns the name before an email address, |
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250 interpreting it as per RFC 5322. |
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251 |
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252 >>> person('foo@bar') |
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253 'foo' |
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254 >>> person('Foo Bar <foo@bar>') |
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255 'Foo Bar' |
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256 >>> person('"Foo Bar" <foo@bar>') |
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257 'Foo Bar' |
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258 >>> person('"Foo \"buz\" Bar" <foo@bar>') |
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259 'Foo "buz" Bar' |
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260 >>> # The following are invalid, but do exist in real-life |
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261 ... |
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262 >>> person('Foo "buz" Bar <foo@bar>') |
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263 'Foo "buz" Bar' |
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264 >>> person('"Foo Bar <foo@bar>') |
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265 'Foo Bar' |
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266 """ |
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267 if '@' not in author: |
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268 return author |
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269 f = author.find('<') |
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270 if f != -1: |
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271 return author[:f].strip(' "').replace('\\"', '"') |
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272 f = author.find('@') |
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273 return author[:f].replace('.', ' ') |
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274 |
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275 def rfc3339date(text): |
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276 """:rfc3339date: Date. Returns a date using the Internet date format |
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277 specified in RFC 3339: "2009-08-18T13:00:13+02:00". |
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278 """ |
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279 return util.datestr(text, "%Y-%m-%dT%H:%M:%S%1:%2") |
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280 |
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281 def rfc822date(text): |
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282 """:rfc822date: Date. Returns a date using the same format used in email |
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283 headers: "Tue, 18 Aug 2009 13:00:13 +0200". |
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284 """ |
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285 return util.datestr(text, "%a, %d %b %Y %H:%M:%S %1%2") |
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286 |
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287 def short(text): |
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288 """:short: Changeset hash. Returns the short form of a changeset hash, |
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289 i.e. a 12 hexadecimal digit string. |
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290 """ |
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291 return text[:12] |
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292 |
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293 def shortbisect(text): |
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294 """:shortbisect: Any text. Treats `text` as a bisection status, and |
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295 returns a single-character representing the status (G: good, B: bad, |
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296 S: skipped, U: untested, I: ignored). Returns single space if `text` |
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297 is not a valid bisection status. |
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298 """ |
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299 return hbisect.shortlabel(text) or ' ' |
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300 |
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301 def shortdate(text): |
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302 """:shortdate: Date. Returns a date like "2006-09-18".""" |
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303 return util.shortdate(text) |
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304 |
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305 def stringescape(text): |
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306 return text.encode('string_escape') |
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307 |
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308 def stringify(thing): |
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309 """:stringify: Any type. Turns the value into text by converting values into |
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310 text and concatenating them. |
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311 """ |
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312 if util.safehasattr(thing, '__iter__') and not isinstance(thing, str): |
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313 return "".join([stringify(t) for t in thing if t is not None]) |
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314 return str(thing) |
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315 |
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316 def strip(text): |
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317 """:strip: Any text. Strips all leading and trailing whitespace.""" |
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318 return text.strip() |
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319 |
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320 def stripdir(text): |
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321 """:stripdir: Treat the text as path and strip a directory level, if |
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322 possible. For example, "foo" and "foo/bar" becomes "foo". |
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323 """ |
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324 dir = os.path.dirname(text) |
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325 if dir == "": |
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326 return os.path.basename(text) |
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327 else: |
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328 return dir |
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329 |
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330 def tabindent(text): |
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331 """:tabindent: Any text. Returns the text, with every non-empty line |
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332 except the first starting with a tab character. |
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333 """ |
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334 return indent(text, '\t') |
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335 |
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336 def urlescape(text): |
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337 """:urlescape: Any text. Escapes all "special" characters. For example, |
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338 "foo bar" becomes "foo%20bar". |
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339 """ |
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340 return urllib.quote(text) |
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341 |
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342 def userfilter(text): |
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343 """:user: Any text. Returns a short representation of a user name or email |
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344 address.""" |
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345 return util.shortuser(text) |
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346 |
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347 def emailuser(text): |
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348 """:emailuser: Any text. Returns the user portion of an email address.""" |
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349 return util.emailuser(text) |
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350 |
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351 def xmlescape(text): |
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352 text = (text |
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353 .replace('&', '&') |
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354 .replace('<', '<') |
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355 .replace('>', '>') |
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356 .replace('"', '"') |
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357 .replace("'", ''')) # ' invalid in HTML |
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358 return re.sub('[\x00-\x08\x0B\x0C\x0E-\x1F]', ' ', text) |
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359 |
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360 filters = { |
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361 "addbreaks": addbreaks, |
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362 "age": age, |
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363 "basename": basename, |
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364 "date": datefilter, |
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365 "domain": domain, |
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366 "email": email, |
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367 "escape": escape, |
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368 "fill68": fill68, |
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369 "fill76": fill76, |
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370 "firstline": firstline, |
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371 "hex": hexfilter, |
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372 "hgdate": hgdate, |
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373 "isodate": isodate, |
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374 "isodatesec": isodatesec, |
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375 "json": json, |
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376 "jsonescape": jsonescape, |
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377 "localdate": localdate, |
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378 "nonempty": nonempty, |
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379 "obfuscate": obfuscate, |
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380 "permissions": permissions, |
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381 "person": person, |
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382 "rfc3339date": rfc3339date, |
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383 "rfc822date": rfc822date, |
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384 "short": short, |
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385 "shortbisect": shortbisect, |
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386 "shortdate": shortdate, |
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387 "stringescape": stringescape, |
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388 "stringify": stringify, |
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389 "strip": strip, |
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390 "stripdir": stripdir, |
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391 "tabindent": tabindent, |
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392 "urlescape": urlescape, |
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393 "user": userfilter, |
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394 "emailuser": emailuser, |
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395 "xmlescape": xmlescape, |
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396 } |
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397 |
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398 def websub(text, websubtable): |
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399 """:websub: Any text. Only applies to hgweb. Applies the regular |
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400 expression replacements defined in the websub section. |
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401 """ |
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402 if websubtable: |
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403 for regexp, format in websubtable: |
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404 text = regexp.sub(format, text) |
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405 return text |
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406 |
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407 # tell hggettext to extract docstrings from these functions: |
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408 i18nfunctions = filters.values() |