Mercurial > hg
annotate mercurial/templatefilters.py @ 42437:9609430d3625
rust-filepatterns: use bytes instead of String
In my initial patch, I introduced an unnecessary hard constraint on UTF-8
filenames and patterns which I forgot to remove. Although the performance
penalty for using String might be negligible, we don't want to break
compatibility with non-UTF-8 encodings for no reason.
Moreover, this change allows for a cleaner Rust core API.
This patch introduces a new utils module that is used with this fix.
Finally, PatternError was not put inside the Python module generated by
Rust, which would have raised a NameError.
Differential Revision: https://phab.mercurial-scm.org/D6485
author | Raphaël Gomès <rgomes@octobus.net> |
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date | Thu, 06 Jun 2019 15:30:56 +0200 |
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1 # templatefilters.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 from __future__ import absolute_import |
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9 |
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10 import os |
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11 import re |
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12 import time |
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13 |
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14 from .i18n import _ |
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15 from . import ( |
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16 encoding, |
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17 error, |
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18 node, |
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19 pycompat, |
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20 registrar, |
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21 templateutil, |
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22 url, |
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23 util, |
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24 ) |
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25 from .utils import ( |
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26 cborutil, |
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27 dateutil, |
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28 stringutil, |
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29 ) |
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30 |
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31 urlerr = util.urlerr |
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32 urlreq = util.urlreq |
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33 |
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34 if pycompat.ispy3: |
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35 long = int |
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36 |
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37 # filters are callables like: |
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38 # fn(obj) |
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39 # with: |
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40 # obj - object to be filtered (text, date, list and so on) |
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41 filters = {} |
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42 |
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43 templatefilter = registrar.templatefilter(filters) |
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44 |
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45 @templatefilter('addbreaks', intype=bytes) |
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46 def addbreaks(text): |
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47 """Any text. Add an XHTML "<br />" tag before the end of |
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48 every line except the last. |
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49 """ |
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50 return text.replace('\n', '<br/>\n') |
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51 |
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52 agescales = [("year", 3600 * 24 * 365, 'Y'), |
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53 ("month", 3600 * 24 * 30, 'M'), |
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54 ("week", 3600 * 24 * 7, 'W'), |
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55 ("day", 3600 * 24, 'd'), |
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56 ("hour", 3600, 'h'), |
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57 ("minute", 60, 'm'), |
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58 ("second", 1, 's')] |
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59 |
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60 @templatefilter('age', intype=templateutil.date) |
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61 def age(date, abbrev=False): |
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62 """Date. Returns a human-readable date/time difference between the |
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63 given date/time and the current date/time. |
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64 """ |
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65 |
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66 def plural(t, c): |
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67 if c == 1: |
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68 return t |
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69 return t + "s" |
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70 def fmt(t, c, a): |
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71 if abbrev: |
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72 return "%d%s" % (c, a) |
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73 return "%d %s" % (c, plural(t, c)) |
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74 |
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75 now = time.time() |
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76 then = date[0] |
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77 future = False |
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78 if then > now: |
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79 future = True |
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80 delta = max(1, int(then - now)) |
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81 if delta > agescales[0][1] * 30: |
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82 return 'in the distant future' |
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83 else: |
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84 delta = max(1, int(now - then)) |
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85 if delta > agescales[0][1] * 2: |
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86 return dateutil.shortdate(date) |
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87 |
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88 for t, s, a in agescales: |
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89 n = delta // s |
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90 if n >= 2 or s == 1: |
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91 if future: |
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92 return '%s from now' % fmt(t, n, a) |
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93 return '%s ago' % fmt(t, n, a) |
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94 |
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95 @templatefilter('basename', intype=bytes) |
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96 def basename(path): |
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97 """Any text. Treats the text as a path, and returns the last |
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98 component of the path after splitting by the path separator. |
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99 For example, "foo/bar/baz" becomes "baz" and "foo/bar//" becomes "". |
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100 """ |
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101 return os.path.basename(path) |
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102 |
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103 @templatefilter('cbor') |
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104 def cbor(obj): |
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105 """Any object. Serializes the object to CBOR bytes.""" |
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106 return b''.join(cborutil.streamencode(obj)) |
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107 |
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108 @templatefilter('commondir') |
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109 def commondir(filelist): |
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110 """List of text. Treats each list item as file name with / |
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111 as path separator and returns the longest common directory |
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112 prefix shared by all list items. |
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113 Returns the empty string if no common prefix exists. |
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114 |
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115 The list items are not normalized, i.e. "foo/../bar" is handled as |
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116 file "bar" in the directory "foo/..". Leading slashes are ignored. |
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117 |
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118 For example, ["foo/bar/baz", "foo/baz/bar"] becomes "foo" and |
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119 ["foo/bar", "baz"] becomes "". |
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120 """ |
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121 def common(a, b): |
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122 if len(a) > len(b): |
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123 a = b[:len(a)] |
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124 elif len(b) > len(a): |
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125 b = b[:len(a)] |
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126 if a == b: |
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127 return a |
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128 for i in pycompat.xrange(len(a)): |
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129 if a[i] != b[i]: |
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130 return a[:i] |
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131 return a |
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132 try: |
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133 if not filelist: |
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134 return "" |
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135 dirlist = [f.lstrip('/').split('/')[:-1] for f in filelist] |
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136 if len(dirlist) == 1: |
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137 return '/'.join(dirlist[0]) |
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138 a = min(dirlist) |
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139 b = max(dirlist) |
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140 # The common prefix of a and b is shared with all |
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141 # elements of the list since Python sorts lexicographical |
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142 # and [1, x] after [1]. |
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143 return '/'.join(common(a, b)) |
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144 except TypeError: |
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145 raise error.ParseError(_('argument is not a list of text')) |
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146 |
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147 @templatefilter('count') |
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148 def count(i): |
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149 """List or text. Returns the length as an integer.""" |
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150 try: |
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151 return len(i) |
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152 except TypeError: |
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153 raise error.ParseError(_('not countable')) |
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154 |
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155 @templatefilter('dirname', intype=bytes) |
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156 def dirname(path): |
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157 """Any text. Treats the text as a path, and strips the last |
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158 component of the path after splitting by the path separator. |
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159 """ |
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160 return os.path.dirname(path) |
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161 |
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162 @templatefilter('domain', intype=bytes) |
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163 def domain(author): |
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164 """Any text. Finds the first string that looks like an email |
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165 address, and extracts just the domain component. Example: ``User |
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166 <user@example.com>`` becomes ``example.com``. |
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167 """ |
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168 f = author.find('@') |
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169 if f == -1: |
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170 return '' |
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171 author = author[f + 1:] |
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172 f = author.find('>') |
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173 if f >= 0: |
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174 author = author[:f] |
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175 return author |
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176 |
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177 @templatefilter('email', intype=bytes) |
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178 def email(text): |
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179 """Any text. Extracts the first string that looks like an email |
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180 address. Example: ``User <user@example.com>`` becomes |
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181 ``user@example.com``. |
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182 """ |
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183 return stringutil.email(text) |
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184 |
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185 @templatefilter('escape', intype=bytes) |
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186 def escape(text): |
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187 """Any text. Replaces the special XML/XHTML characters "&", "<" |
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188 and ">" with XML entities, and filters out NUL characters. |
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189 """ |
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190 return url.escape(text.replace('\0', ''), True) |
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191 |
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192 para_re = None |
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193 space_re = None |
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194 |
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195 def fill(text, width, initindent='', hangindent=''): |
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196 '''fill many paragraphs with optional indentation.''' |
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197 global para_re, space_re |
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198 if para_re is None: |
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199 para_re = re.compile('(\n\n|\n\\s*[-*]\\s*)', re.M) |
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200 space_re = re.compile(br' +') |
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201 |
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202 def findparas(): |
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203 start = 0 |
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204 while True: |
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205 m = para_re.search(text, start) |
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206 if not m: |
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207 uctext = encoding.unifromlocal(text[start:]) |
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208 w = len(uctext) |
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209 while w > 0 and uctext[w - 1].isspace(): |
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210 w -= 1 |
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211 yield (encoding.unitolocal(uctext[:w]), |
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212 encoding.unitolocal(uctext[w:])) |
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213 break |
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214 yield text[start:m.start(0)], m.group(1) |
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215 start = m.end(1) |
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216 |
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217 return "".join([stringutil.wrap(space_re.sub(' ', |
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218 stringutil.wrap(para, width)), |
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219 width, initindent, hangindent) + rest |
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220 for para, rest in findparas()]) |
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221 |
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222 @templatefilter('fill68', intype=bytes) |
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223 def fill68(text): |
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224 """Any text. Wraps the text to fit in 68 columns.""" |
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225 return fill(text, 68) |
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226 |
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227 @templatefilter('fill76', intype=bytes) |
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228 def fill76(text): |
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229 """Any text. Wraps the text to fit in 76 columns.""" |
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230 return fill(text, 76) |
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231 |
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232 @templatefilter('firstline', intype=bytes) |
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233 def firstline(text): |
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234 """Any text. Returns the first line of text.""" |
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235 try: |
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236 return text.splitlines(True)[0].rstrip('\r\n') |
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237 except IndexError: |
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238 return '' |
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239 |
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240 @templatefilter('hex', intype=bytes) |
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241 def hexfilter(text): |
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242 """Any text. Convert a binary Mercurial node identifier into |
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243 its long hexadecimal representation. |
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244 """ |
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245 return node.hex(text) |
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246 |
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247 @templatefilter('hgdate', intype=templateutil.date) |
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248 def hgdate(text): |
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249 """Date. Returns the date as a pair of numbers: "1157407993 |
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250 25200" (Unix timestamp, timezone offset). |
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251 """ |
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252 return "%d %d" % text |
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253 |
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254 @templatefilter('isodate', intype=templateutil.date) |
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255 def isodate(text): |
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256 """Date. Returns the date in ISO 8601 format: "2009-08-18 13:00 |
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257 +0200". |
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258 """ |
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259 return dateutil.datestr(text, '%Y-%m-%d %H:%M %1%2') |
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260 |
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261 @templatefilter('isodatesec', intype=templateutil.date) |
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262 def isodatesec(text): |
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263 """Date. Returns the date in ISO 8601 format, including |
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264 seconds: "2009-08-18 13:00:13 +0200". See also the rfc3339date |
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265 filter. |
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266 """ |
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267 return dateutil.datestr(text, '%Y-%m-%d %H:%M:%S %1%2') |
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268 |
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269 def indent(text, prefix): |
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270 '''indent each non-empty line of text after first with prefix.''' |
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271 lines = text.splitlines() |
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272 num_lines = len(lines) |
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273 endswithnewline = text[-1:] == '\n' |
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274 def indenter(): |
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275 for i in pycompat.xrange(num_lines): |
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276 l = lines[i] |
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277 if i and l.strip(): |
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278 yield prefix |
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279 yield l |
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280 if i < num_lines - 1 or endswithnewline: |
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281 yield '\n' |
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282 return "".join(indenter()) |
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283 |
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284 @templatefilter('json') |
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285 def json(obj, paranoid=True): |
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286 """Any object. Serializes the object to a JSON formatted text.""" |
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287 if obj is None: |
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288 return 'null' |
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289 elif obj is False: |
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290 return 'false' |
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291 elif obj is True: |
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292 return 'true' |
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293 elif isinstance(obj, (int, long, float)): |
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294 return pycompat.bytestr(obj) |
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295 elif isinstance(obj, bytes): |
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296 return '"%s"' % encoding.jsonescape(obj, paranoid=paranoid) |
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297 elif isinstance(obj, type(u'')): |
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298 raise error.ProgrammingError( |
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299 'Mercurial only does output with bytes: %r' % obj) |
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300 elif util.safehasattr(obj, 'keys'): |
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301 out = ['"%s": %s' % (encoding.jsonescape(k, paranoid=paranoid), |
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302 json(v, paranoid)) |
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303 for k, v in sorted(obj.iteritems())] |
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304 return '{' + ', '.join(out) + '}' |
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305 elif util.safehasattr(obj, '__iter__'): |
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306 out = [json(i, paranoid) for i in obj] |
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307 return '[' + ', '.join(out) + ']' |
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308 raise error.ProgrammingError('cannot encode %r' % obj) |
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309 |
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310 @templatefilter('lower', intype=bytes) |
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311 def lower(text): |
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312 """Any text. Converts the text to lowercase.""" |
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313 return encoding.lower(text) |
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314 |
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315 @templatefilter('nonempty', intype=bytes) |
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316 def nonempty(text): |
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317 """Any text. Returns '(none)' if the string is empty.""" |
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318 return text or "(none)" |
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319 |
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320 @templatefilter('obfuscate', intype=bytes) |
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321 def obfuscate(text): |
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322 """Any text. Returns the input text rendered as a sequence of |
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323 XML entities. |
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324 """ |
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325 text = unicode(text, pycompat.sysstr(encoding.encoding), r'replace') |
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326 return ''.join(['&#%d;' % ord(c) for c in text]) |
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327 |
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328 @templatefilter('permissions', intype=bytes) |
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329 def permissions(flags): |
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330 if "l" in flags: |
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331 return "lrwxrwxrwx" |
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332 if "x" in flags: |
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333 return "-rwxr-xr-x" |
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334 return "-rw-r--r--" |
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335 |
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336 @templatefilter('person', intype=bytes) |
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337 def person(author): |
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338 """Any text. Returns the name before an email address, |
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339 interpreting it as per RFC 5322. |
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340 """ |
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341 return stringutil.person(author) |
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342 |
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343 @templatefilter('revescape', intype=bytes) |
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344 def revescape(text): |
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345 """Any text. Escapes all "special" characters, except @. |
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346 Forward slashes are escaped twice to prevent web servers from prematurely |
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347 unescaping them. For example, "@foo bar/baz" becomes "@foo%20bar%252Fbaz". |
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348 """ |
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349 return urlreq.quote(text, safe='/@').replace('/', '%252F') |
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350 |
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351 @templatefilter('rfc3339date', intype=templateutil.date) |
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352 def rfc3339date(text): |
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353 """Date. Returns a date using the Internet date format |
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354 specified in RFC 3339: "2009-08-18T13:00:13+02:00". |
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355 """ |
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356 return dateutil.datestr(text, "%Y-%m-%dT%H:%M:%S%1:%2") |
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357 |
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358 @templatefilter('rfc822date', intype=templateutil.date) |
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359 def rfc822date(text): |
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360 """Date. Returns a date using the same format used in email |
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361 headers: "Tue, 18 Aug 2009 13:00:13 +0200". |
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362 """ |
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363 return dateutil.datestr(text, "%a, %d %b %Y %H:%M:%S %1%2") |
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364 |
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365 @templatefilter('short', intype=bytes) |
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366 def short(text): |
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367 """Changeset hash. Returns the short form of a changeset hash, |
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368 i.e. a 12 hexadecimal digit string. |
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369 """ |
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370 return text[:12] |
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371 |
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372 @templatefilter('shortbisect', intype=bytes) |
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373 def shortbisect(label): |
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374 """Any text. Treats `label` as a bisection status, and |
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375 returns a single-character representing the status (G: good, B: bad, |
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376 S: skipped, U: untested, I: ignored). Returns single space if `text` |
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377 is not a valid bisection status. |
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378 """ |
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379 if label: |
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380 return label[0:1].upper() |
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381 return ' ' |
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382 |
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383 @templatefilter('shortdate', intype=templateutil.date) |
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384 def shortdate(text): |
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385 """Date. Returns a date like "2006-09-18".""" |
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386 return dateutil.shortdate(text) |
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387 |
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388 @templatefilter('slashpath', intype=bytes) |
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389 def slashpath(path): |
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390 """Any text. Replaces the native path separator with slash.""" |
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391 return util.pconvert(path) |
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392 |
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393 @templatefilter('splitlines', intype=bytes) |
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394 def splitlines(text): |
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395 """Any text. Split text into a list of lines.""" |
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396 return templateutil.hybridlist(text.splitlines(), name='line') |
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397 |
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398 @templatefilter('stringescape', intype=bytes) |
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399 def stringescape(text): |
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400 return stringutil.escapestr(text) |
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401 |
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402 @templatefilter('stringify', intype=bytes) |
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403 def stringify(thing): |
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404 """Any type. Turns the value into text by converting values into |
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405 text and concatenating them. |
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406 """ |
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407 return thing # coerced by the intype |
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408 |
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409 @templatefilter('stripdir', intype=bytes) |
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410 def stripdir(text): |
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411 """Treat the text as path and strip a directory level, if |
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412 possible. For example, "foo" and "foo/bar" becomes "foo". |
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413 """ |
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414 dir = os.path.dirname(text) |
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415 if dir == "": |
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416 return os.path.basename(text) |
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417 else: |
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418 return dir |
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419 |
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420 @templatefilter('tabindent', intype=bytes) |
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421 def tabindent(text): |
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422 """Any text. Returns the text, with every non-empty line |
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423 except the first starting with a tab character. |
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424 """ |
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425 return indent(text, '\t') |
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426 |
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427 @templatefilter('upper', intype=bytes) |
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428 def upper(text): |
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429 """Any text. Converts the text to uppercase.""" |
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430 return encoding.upper(text) |
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431 |
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432 @templatefilter('urlescape', intype=bytes) |
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433 def urlescape(text): |
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434 """Any text. Escapes all "special" characters. For example, |
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435 "foo bar" becomes "foo%20bar". |
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436 """ |
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437 return urlreq.quote(text) |
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438 |
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439 @templatefilter('user', intype=bytes) |
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440 def userfilter(text): |
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441 """Any text. Returns a short representation of a user name or email |
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442 address.""" |
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443 return stringutil.shortuser(text) |
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444 |
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445 @templatefilter('emailuser', intype=bytes) |
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446 def emailuser(text): |
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447 """Any text. Returns the user portion of an email address.""" |
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448 return stringutil.emailuser(text) |
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449 |
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450 @templatefilter('utf8', intype=bytes) |
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451 def utf8(text): |
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452 """Any text. Converts from the local character encoding to UTF-8.""" |
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453 return encoding.fromlocal(text) |
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454 |
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455 @templatefilter('xmlescape', intype=bytes) |
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456 def xmlescape(text): |
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457 text = (text |
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458 .replace('&', '&') |
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459 .replace('<', '<') |
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460 .replace('>', '>') |
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461 .replace('"', '"') |
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462 .replace("'", ''')) # ' invalid in HTML |
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463 return re.sub('[\x00-\x08\x0B\x0C\x0E-\x1F]', ' ', text) |
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464 |
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465 def websub(text, websubtable): |
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466 """:websub: Any text. Only applies to hgweb. Applies the regular |
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467 expression replacements defined in the websub section. |
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468 """ |
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469 if websubtable: |
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470 for regexp, format in websubtable: |
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471 text = regexp.sub(format, text) |
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472 return text |
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473 |
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474 def loadfilter(ui, extname, registrarobj): |
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475 """Load template filter from specified registrarobj |
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476 """ |
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477 for name, func in registrarobj._table.iteritems(): |
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478 filters[name] = func |
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479 |
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480 # tell hggettext to extract docstrings from these functions: |
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481 i18nfunctions = filters.values() |