Mercurial > hg
annotate mercurial/templatefilters.py @ 35350:82ee401135dd
py3: handle keyword arguments correctly in cmdutil.py
Differential Revision: https://phab.mercurial-scm.org/D1626
author | Pulkit Goyal <7895pulkit@gmail.com> |
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date | Sun, 10 Dec 2017 04:45:10 +0530 |
parents | 4fdc4adbc838 |
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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 . import ( |
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15 encoding, |
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16 error, |
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17 hbisect, |
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18 node, |
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19 pycompat, |
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20 registrar, |
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21 templatekw, |
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22 url, |
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23 util, |
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24 ) |
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25 |
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26 urlerr = util.urlerr |
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27 urlreq = util.urlreq |
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28 |
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29 if pycompat.ispy3: |
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30 long = int |
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31 |
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32 # filters are callables like: |
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33 # fn(obj) |
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34 # with: |
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35 # obj - object to be filtered (text, date, list and so on) |
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36 filters = {} |
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37 |
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38 templatefilter = registrar.templatefilter(filters) |
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39 |
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40 @templatefilter('addbreaks') |
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41 def addbreaks(text): |
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42 """Any text. Add an XHTML "<br />" tag before the end of |
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43 every line except the last. |
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44 """ |
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45 return text.replace('\n', '<br/>\n') |
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46 |
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47 agescales = [("year", 3600 * 24 * 365, 'Y'), |
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48 ("month", 3600 * 24 * 30, 'M'), |
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49 ("week", 3600 * 24 * 7, 'W'), |
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50 ("day", 3600 * 24, 'd'), |
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51 ("hour", 3600, 'h'), |
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52 ("minute", 60, 'm'), |
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53 ("second", 1, 's')] |
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54 |
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55 @templatefilter('age') |
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56 def age(date, abbrev=False): |
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57 """Date. Returns a human-readable date/time difference between the |
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58 given date/time and the current date/time. |
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59 """ |
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60 |
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61 def plural(t, c): |
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62 if c == 1: |
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63 return t |
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64 return t + "s" |
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65 def fmt(t, c, a): |
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66 if abbrev: |
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67 return "%d%s" % (c, a) |
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68 return "%d %s" % (c, plural(t, c)) |
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69 |
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70 now = time.time() |
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71 then = date[0] |
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72 future = False |
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73 if then > now: |
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74 future = True |
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75 delta = max(1, int(then - now)) |
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76 if delta > agescales[0][1] * 30: |
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77 return 'in the distant future' |
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78 else: |
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79 delta = max(1, int(now - then)) |
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80 if delta > agescales[0][1] * 2: |
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81 return util.shortdate(date) |
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82 |
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83 for t, s, a in agescales: |
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84 n = delta // s |
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85 if n >= 2 or s == 1: |
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86 if future: |
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87 return '%s from now' % fmt(t, n, a) |
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88 return '%s ago' % fmt(t, n, a) |
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89 |
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90 @templatefilter('basename') |
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91 def basename(path): |
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92 """Any text. Treats the text as a path, and returns the last |
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93 component of the path after splitting by the path separator |
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94 (ignoring trailing separators). For example, "foo/bar/baz" becomes |
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95 "baz" and "foo/bar//" becomes "bar". |
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96 """ |
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97 return os.path.basename(path) |
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98 |
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99 @templatefilter('count') |
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100 def count(i): |
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101 """List or text. Returns the length as an integer.""" |
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102 return len(i) |
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103 |
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104 @templatefilter('domain') |
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105 def domain(author): |
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106 """Any text. Finds the first string that looks like an email |
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107 address, and extracts just the domain component. Example: ``User |
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108 <user@example.com>`` becomes ``example.com``. |
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109 """ |
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110 f = author.find('@') |
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111 if f == -1: |
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112 return '' |
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113 author = author[f + 1:] |
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114 f = author.find('>') |
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115 if f >= 0: |
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116 author = author[:f] |
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117 return author |
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118 |
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119 @templatefilter('email') |
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120 def email(text): |
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121 """Any text. Extracts the first string that looks like an email |
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122 address. Example: ``User <user@example.com>`` becomes |
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123 ``user@example.com``. |
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124 """ |
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125 return util.email(text) |
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126 |
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127 @templatefilter('escape') |
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128 def escape(text): |
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129 """Any text. Replaces the special XML/XHTML characters "&", "<" |
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130 and ">" with XML entities, and filters out NUL characters. |
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131 """ |
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132 return url.escape(text.replace('\0', ''), True) |
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133 |
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134 para_re = None |
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135 space_re = None |
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136 |
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137 def fill(text, width, initindent='', hangindent=''): |
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138 '''fill many paragraphs with optional indentation.''' |
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139 global para_re, space_re |
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140 if para_re is None: |
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141 para_re = re.compile('(\n\n|\n\\s*[-*]\\s*)', re.M) |
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142 space_re = re.compile(r' +') |
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143 |
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144 def findparas(): |
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145 start = 0 |
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146 while True: |
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147 m = para_re.search(text, start) |
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148 if not m: |
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149 uctext = unicode(text[start:], encoding.encoding) |
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150 w = len(uctext) |
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151 while 0 < w and uctext[w - 1].isspace(): |
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152 w -= 1 |
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153 yield (uctext[:w].encode(encoding.encoding), |
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154 uctext[w:].encode(encoding.encoding)) |
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155 break |
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156 yield text[start:m.start(0)], m.group(1) |
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157 start = m.end(1) |
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158 |
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159 return "".join([util.wrap(space_re.sub(' ', util.wrap(para, width)), |
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160 width, initindent, hangindent) + rest |
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161 for para, rest in findparas()]) |
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162 |
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163 @templatefilter('fill68') |
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164 def fill68(text): |
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165 """Any text. Wraps the text to fit in 68 columns.""" |
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166 return fill(text, 68) |
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167 |
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168 @templatefilter('fill76') |
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169 def fill76(text): |
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170 """Any text. Wraps the text to fit in 76 columns.""" |
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171 return fill(text, 76) |
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172 |
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173 @templatefilter('firstline') |
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174 def firstline(text): |
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175 """Any text. Returns the first line of text.""" |
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176 try: |
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177 return text.splitlines(True)[0].rstrip('\r\n') |
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178 except IndexError: |
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179 return '' |
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180 |
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181 @templatefilter('hex') |
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182 def hexfilter(text): |
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183 """Any text. Convert a binary Mercurial node identifier into |
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184 its long hexadecimal representation. |
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185 """ |
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186 return node.hex(text) |
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187 |
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188 @templatefilter('hgdate') |
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189 def hgdate(text): |
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190 """Date. Returns the date as a pair of numbers: "1157407993 |
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191 25200" (Unix timestamp, timezone offset). |
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192 """ |
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193 return "%d %d" % text |
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194 |
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195 @templatefilter('isodate') |
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196 def isodate(text): |
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197 """Date. Returns the date in ISO 8601 format: "2009-08-18 13:00 |
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198 +0200". |
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199 """ |
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200 return util.datestr(text, '%Y-%m-%d %H:%M %1%2') |
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201 |
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202 @templatefilter('isodatesec') |
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203 def isodatesec(text): |
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204 """Date. Returns the date in ISO 8601 format, including |
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205 seconds: "2009-08-18 13:00:13 +0200". See also the rfc3339date |
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206 filter. |
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207 """ |
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208 return util.datestr(text, '%Y-%m-%d %H:%M:%S %1%2') |
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209 |
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210 def indent(text, prefix): |
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211 '''indent each non-empty line of text after first with prefix.''' |
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212 lines = text.splitlines() |
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213 num_lines = len(lines) |
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214 endswithnewline = text[-1:] == '\n' |
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215 def indenter(): |
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216 for i in xrange(num_lines): |
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217 l = lines[i] |
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218 if i and l.strip(): |
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219 yield prefix |
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220 yield l |
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221 if i < num_lines - 1 or endswithnewline: |
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222 yield '\n' |
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223 return "".join(indenter()) |
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224 |
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225 @templatefilter('json') |
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226 def json(obj, paranoid=True): |
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227 if obj is None: |
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228 return 'null' |
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229 elif obj is False: |
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230 return 'false' |
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231 elif obj is True: |
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232 return 'true' |
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233 elif isinstance(obj, (int, long, float)): |
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234 return pycompat.bytestr(obj) |
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235 elif isinstance(obj, bytes): |
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236 return '"%s"' % encoding.jsonescape(obj, paranoid=paranoid) |
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237 elif isinstance(obj, str): |
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238 # This branch is unreachable on Python 2, because bytes == str |
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239 # and we'll return in the next-earlier block in the elif |
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240 # ladder. On Python 3, this helps us catch bugs before they |
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241 # hurt someone. |
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242 raise error.ProgrammingError( |
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243 'Mercurial only does output with bytes on Python 3: %r' % obj) |
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244 elif util.safehasattr(obj, 'keys'): |
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245 out = ['"%s": %s' % (encoding.jsonescape(k, paranoid=paranoid), |
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246 json(v, paranoid)) |
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247 for k, v in sorted(obj.iteritems())] |
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248 return '{' + ', '.join(out) + '}' |
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249 elif util.safehasattr(obj, '__iter__'): |
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250 out = [json(i, paranoid) for i in obj] |
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251 return '[' + ', '.join(out) + ']' |
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252 else: |
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253 raise TypeError('cannot encode type %s' % obj.__class__.__name__) |
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254 |
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255 @templatefilter('lower') |
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256 def lower(text): |
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257 """Any text. Converts the text to lowercase.""" |
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258 return encoding.lower(text) |
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259 |
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260 @templatefilter('nonempty') |
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261 def nonempty(str): |
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262 """Any text. Returns '(none)' if the string is empty.""" |
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263 return str or "(none)" |
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264 |
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265 @templatefilter('obfuscate') |
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266 def obfuscate(text): |
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267 """Any text. Returns the input text rendered as a sequence of |
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268 XML entities. |
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269 """ |
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270 text = unicode(text, encoding.encoding, 'replace') |
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271 return ''.join(['&#%d;' % ord(c) for c in text]) |
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272 |
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273 @templatefilter('permissions') |
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274 def permissions(flags): |
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275 if "l" in flags: |
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276 return "lrwxrwxrwx" |
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277 if "x" in flags: |
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278 return "-rwxr-xr-x" |
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279 return "-rw-r--r--" |
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280 |
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281 @templatefilter('person') |
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282 def person(author): |
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283 """Any text. Returns the name before an email address, |
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284 interpreting it as per RFC 5322. |
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285 |
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286 >>> person(b'foo@bar') |
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287 'foo' |
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288 >>> person(b'Foo Bar <foo@bar>') |
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289 'Foo Bar' |
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290 >>> person(b'"Foo Bar" <foo@bar>') |
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291 'Foo Bar' |
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292 >>> person(b'"Foo \"buz\" Bar" <foo@bar>') |
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293 'Foo "buz" Bar' |
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294 >>> # The following are invalid, but do exist in real-life |
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295 ... |
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296 >>> person(b'Foo "buz" Bar <foo@bar>') |
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297 'Foo "buz" Bar' |
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298 >>> person(b'"Foo Bar <foo@bar>') |
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299 'Foo Bar' |
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300 """ |
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301 if '@' not in author: |
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302 return author |
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303 f = author.find('<') |
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304 if f != -1: |
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305 return author[:f].strip(' "').replace('\\"', '"') |
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306 f = author.find('@') |
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307 return author[:f].replace('.', ' ') |
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308 |
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309 @templatefilter('revescape') |
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310 def revescape(text): |
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311 """Any text. Escapes all "special" characters, except @. |
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312 Forward slashes are escaped twice to prevent web servers from prematurely |
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313 unescaping them. For example, "@foo bar/baz" becomes "@foo%20bar%252Fbaz". |
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314 """ |
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315 return urlreq.quote(text, safe='/@').replace('/', '%252F') |
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316 |
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317 @templatefilter('rfc3339date') |
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318 def rfc3339date(text): |
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319 """Date. Returns a date using the Internet date format |
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320 specified in RFC 3339: "2009-08-18T13:00:13+02:00". |
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321 """ |
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322 return util.datestr(text, "%Y-%m-%dT%H:%M:%S%1:%2") |
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323 |
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324 @templatefilter('rfc822date') |
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325 def rfc822date(text): |
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326 """Date. Returns a date using the same format used in email |
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327 headers: "Tue, 18 Aug 2009 13:00:13 +0200". |
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328 """ |
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329 return util.datestr(text, "%a, %d %b %Y %H:%M:%S %1%2") |
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330 |
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331 @templatefilter('short') |
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332 def short(text): |
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333 """Changeset hash. Returns the short form of a changeset hash, |
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334 i.e. a 12 hexadecimal digit string. |
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335 """ |
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336 return text[:12] |
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337 |
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338 @templatefilter('shortbisect') |
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339 def shortbisect(text): |
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340 """Any text. Treats `text` as a bisection status, and |
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341 returns a single-character representing the status (G: good, B: bad, |
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342 S: skipped, U: untested, I: ignored). Returns single space if `text` |
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343 is not a valid bisection status. |
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344 """ |
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345 return hbisect.shortlabel(text) or ' ' |
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346 |
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347 @templatefilter('shortdate') |
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348 def shortdate(text): |
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349 """Date. Returns a date like "2006-09-18".""" |
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350 return util.shortdate(text) |
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351 |
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352 @templatefilter('splitlines') |
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353 def splitlines(text): |
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354 """Any text. Split text into a list of lines.""" |
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355 return templatekw.hybridlist(text.splitlines(), name='line') |
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356 |
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357 @templatefilter('stringescape') |
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358 def stringescape(text): |
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359 return util.escapestr(text) |
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360 |
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361 @templatefilter('stringify') |
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362 def stringify(thing): |
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363 """Any type. Turns the value into text by converting values into |
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364 text and concatenating them. |
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365 """ |
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366 thing = templatekw.unwraphybrid(thing) |
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367 if util.safehasattr(thing, '__iter__') and not isinstance(thing, bytes): |
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368 return "".join([stringify(t) for t in thing if t is not None]) |
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369 if thing is None: |
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370 return "" |
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371 return pycompat.bytestr(thing) |
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372 |
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373 @templatefilter('stripdir') |
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374 def stripdir(text): |
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375 """Treat the text as path and strip a directory level, if |
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376 possible. For example, "foo" and "foo/bar" becomes "foo". |
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377 """ |
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378 dir = os.path.dirname(text) |
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379 if dir == "": |
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380 return os.path.basename(text) |
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381 else: |
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382 return dir |
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383 |
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384 @templatefilter('tabindent') |
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385 def tabindent(text): |
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386 """Any text. Returns the text, with every non-empty line |
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387 except the first starting with a tab character. |
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388 """ |
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389 return indent(text, '\t') |
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390 |
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391 @templatefilter('upper') |
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392 def upper(text): |
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393 """Any text. Converts the text to uppercase.""" |
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394 return encoding.upper(text) |
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395 |
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396 @templatefilter('urlescape') |
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397 def urlescape(text): |
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398 """Any text. Escapes all "special" characters. For example, |
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399 "foo bar" becomes "foo%20bar". |
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400 """ |
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401 return urlreq.quote(text) |
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402 |
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403 @templatefilter('user') |
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404 def userfilter(text): |
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405 """Any text. Returns a short representation of a user name or email |
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406 address.""" |
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407 return util.shortuser(text) |
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408 |
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409 @templatefilter('emailuser') |
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410 def emailuser(text): |
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411 """Any text. Returns the user portion of an email address.""" |
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412 return util.emailuser(text) |
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413 |
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414 @templatefilter('utf8') |
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415 def utf8(text): |
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416 """Any text. Converts from the local character encoding to UTF-8.""" |
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417 return encoding.fromlocal(text) |
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418 |
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419 @templatefilter('xmlescape') |
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420 def xmlescape(text): |
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421 text = (text |
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422 .replace('&', '&') |
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423 .replace('<', '<') |
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424 .replace('>', '>') |
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425 .replace('"', '"') |
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426 .replace("'", ''')) # ' invalid in HTML |
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427 return re.sub('[\x00-\x08\x0B\x0C\x0E-\x1F]', ' ', text) |
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428 |
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429 def websub(text, websubtable): |
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430 """:websub: Any text. Only applies to hgweb. Applies the regular |
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431 expression replacements defined in the websub section. |
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432 """ |
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433 if websubtable: |
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434 for regexp, format in websubtable: |
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435 text = regexp.sub(format, text) |
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436 return text |
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437 |
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438 def loadfilter(ui, extname, registrarobj): |
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439 """Load template filter from specified registrarobj |
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440 """ |
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441 for name, func in registrarobj._table.iteritems(): |
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442 filters[name] = func |
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443 |
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444 # tell hggettext to extract docstrings from these functions: |
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445 i18nfunctions = filters.values() |