Mercurial > hg
annotate mercurial/templatefilters.py @ 37056:861e9d37e56e
wireproto: buffer output frames when in half duplex mode
Previously, when told that a response was ready, the server reactor
would instruct the caller to send frames immediately. This was OK
as an initial implementation. But it would not work for half-duplex
connections where the sender can't receive until all data has been
transmitted - such as httplib based clients.
In this commit, we teach the reactor that output frames should
be buffered until end of input is seen. This required a new
event to inform the reactor of end of input. The result from that
event will instruct the consumer to send all buffered frames.
The HTTP server is buffered by default.
This change effectively hides the complexity of buffering within
the reactor so that transports need not be concerned about it.
This helps keep the transports "dumb" and will make implementing
multiple requests-responses per atomic exchange (like an HTTP
request) much simpler.
Differential Revision: https://phab.mercurial-scm.org/D2860
author | Gregory Szorc <gregory.szorc@gmail.com> |
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date | Wed, 14 Mar 2018 14:01:16 -0700 |
parents | 32f9b7e3f056 |
children | f0b6fbea00cf |
rev | line source |
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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 node, |
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18 pycompat, |
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19 registrar, |
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20 templateutil, |
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21 url, |
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22 util, |
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23 ) |
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24 from .utils import dateutil |
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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 dateutil.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 For example, "foo/bar/baz" becomes "baz" and "foo/bar//" becomes "". |
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95 """ |
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96 return os.path.basename(path) |
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97 |
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98 @templatefilter('count') |
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99 def count(i): |
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100 """List or text. Returns the length as an integer.""" |
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101 return len(i) |
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102 |
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103 @templatefilter('dirname') |
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104 def dirname(path): |
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105 """Any text. Treats the text as a path, and strips the last |
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106 component of the path after splitting by the path separator. |
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107 """ |
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108 return os.path.dirname(path) |
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109 |
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110 @templatefilter('domain') |
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111 def domain(author): |
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112 """Any text. Finds the first string that looks like an email |
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113 address, and extracts just the domain component. Example: ``User |
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114 <user@example.com>`` becomes ``example.com``. |
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115 """ |
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116 f = author.find('@') |
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117 if f == -1: |
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118 return '' |
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119 author = author[f + 1:] |
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120 f = author.find('>') |
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121 if f >= 0: |
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122 author = author[:f] |
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123 return author |
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124 |
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125 @templatefilter('email') |
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126 def email(text): |
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127 """Any text. Extracts the first string that looks like an email |
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128 address. Example: ``User <user@example.com>`` becomes |
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129 ``user@example.com``. |
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130 """ |
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131 return util.email(text) |
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132 |
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133 @templatefilter('escape') |
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134 def escape(text): |
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135 """Any text. Replaces the special XML/XHTML characters "&", "<" |
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136 and ">" with XML entities, and filters out NUL characters. |
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137 """ |
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138 return url.escape(text.replace('\0', ''), True) |
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139 |
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140 para_re = None |
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141 space_re = None |
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142 |
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143 def fill(text, width, initindent='', hangindent=''): |
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144 '''fill many paragraphs with optional indentation.''' |
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145 global para_re, space_re |
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146 if para_re is None: |
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147 para_re = re.compile('(\n\n|\n\\s*[-*]\\s*)', re.M) |
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148 space_re = re.compile(br' +') |
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149 |
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150 def findparas(): |
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151 start = 0 |
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152 while True: |
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153 m = para_re.search(text, start) |
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154 if not m: |
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155 uctext = encoding.unifromlocal(text[start:]) |
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156 w = len(uctext) |
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157 while 0 < w and uctext[w - 1].isspace(): |
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158 w -= 1 |
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159 yield (encoding.unitolocal(uctext[:w]), |
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160 encoding.unitolocal(uctext[w:])) |
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161 break |
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162 yield text[start:m.start(0)], m.group(1) |
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163 start = m.end(1) |
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164 |
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165 return "".join([util.wrap(space_re.sub(' ', util.wrap(para, width)), |
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166 width, initindent, hangindent) + rest |
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167 for para, rest in findparas()]) |
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168 |
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169 @templatefilter('fill68') |
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170 def fill68(text): |
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171 """Any text. Wraps the text to fit in 68 columns.""" |
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172 return fill(text, 68) |
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173 |
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174 @templatefilter('fill76') |
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175 def fill76(text): |
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176 """Any text. Wraps the text to fit in 76 columns.""" |
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177 return fill(text, 76) |
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178 |
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179 @templatefilter('firstline') |
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180 def firstline(text): |
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181 """Any text. Returns the first line of text.""" |
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182 try: |
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183 return text.splitlines(True)[0].rstrip('\r\n') |
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184 except IndexError: |
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185 return '' |
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186 |
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187 @templatefilter('hex') |
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188 def hexfilter(text): |
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189 """Any text. Convert a binary Mercurial node identifier into |
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190 its long hexadecimal representation. |
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191 """ |
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192 return node.hex(text) |
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193 |
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194 @templatefilter('hgdate') |
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195 def hgdate(text): |
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196 """Date. Returns the date as a pair of numbers: "1157407993 |
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197 25200" (Unix timestamp, timezone offset). |
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198 """ |
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199 return "%d %d" % text |
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200 |
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201 @templatefilter('isodate') |
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202 def isodate(text): |
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203 """Date. Returns the date in ISO 8601 format: "2009-08-18 13:00 |
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204 +0200". |
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205 """ |
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206 return dateutil.datestr(text, '%Y-%m-%d %H:%M %1%2') |
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207 |
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208 @templatefilter('isodatesec') |
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209 def isodatesec(text): |
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210 """Date. Returns the date in ISO 8601 format, including |
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211 seconds: "2009-08-18 13:00:13 +0200". See also the rfc3339date |
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212 filter. |
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213 """ |
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214 return dateutil.datestr(text, '%Y-%m-%d %H:%M:%S %1%2') |
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215 |
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216 def indent(text, prefix): |
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217 '''indent each non-empty line of text after first with prefix.''' |
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218 lines = text.splitlines() |
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219 num_lines = len(lines) |
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220 endswithnewline = text[-1:] == '\n' |
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221 def indenter(): |
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222 for i in xrange(num_lines): |
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223 l = lines[i] |
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224 if i and l.strip(): |
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225 yield prefix |
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226 yield l |
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227 if i < num_lines - 1 or endswithnewline: |
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228 yield '\n' |
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229 return "".join(indenter()) |
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230 |
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231 @templatefilter('json') |
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232 def json(obj, paranoid=True): |
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233 if obj is None: |
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234 return 'null' |
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235 elif obj is False: |
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236 return 'false' |
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237 elif obj is True: |
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238 return 'true' |
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239 elif isinstance(obj, (int, long, float)): |
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240 return pycompat.bytestr(obj) |
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241 elif isinstance(obj, bytes): |
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242 return '"%s"' % encoding.jsonescape(obj, paranoid=paranoid) |
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243 elif isinstance(obj, str): |
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244 # This branch is unreachable on Python 2, because bytes == str |
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245 # and we'll return in the next-earlier block in the elif |
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246 # ladder. On Python 3, this helps us catch bugs before they |
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247 # hurt someone. |
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248 raise error.ProgrammingError( |
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249 'Mercurial only does output with bytes on Python 3: %r' % obj) |
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250 elif util.safehasattr(obj, 'keys'): |
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251 out = ['"%s": %s' % (encoding.jsonescape(k, paranoid=paranoid), |
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252 json(v, paranoid)) |
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253 for k, v in sorted(obj.iteritems())] |
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254 return '{' + ', '.join(out) + '}' |
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255 elif util.safehasattr(obj, '__iter__'): |
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256 out = [json(i, paranoid) for i in obj] |
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257 return '[' + ', '.join(out) + ']' |
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258 else: |
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259 raise TypeError('cannot encode type %s' % obj.__class__.__name__) |
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260 |
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261 @templatefilter('lower') |
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262 def lower(text): |
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263 """Any text. Converts the text to lowercase.""" |
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264 return encoding.lower(text) |
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265 |
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266 @templatefilter('nonempty') |
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267 def nonempty(text): |
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268 """Any text. Returns '(none)' if the string is empty.""" |
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269 return text or "(none)" |
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270 |
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271 @templatefilter('obfuscate') |
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272 def obfuscate(text): |
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273 """Any text. Returns the input text rendered as a sequence of |
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274 XML entities. |
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275 """ |
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276 text = unicode(text, pycompat.sysstr(encoding.encoding), r'replace') |
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277 return ''.join(['&#%d;' % ord(c) for c in text]) |
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278 |
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279 @templatefilter('permissions') |
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280 def permissions(flags): |
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281 if "l" in flags: |
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282 return "lrwxrwxrwx" |
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283 if "x" in flags: |
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284 return "-rwxr-xr-x" |
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285 return "-rw-r--r--" |
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286 |
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287 @templatefilter('person') |
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288 def person(author): |
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289 """Any text. Returns the name before an email address, |
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290 interpreting it as per RFC 5322. |
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291 |
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292 >>> person(b'foo@bar') |
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293 'foo' |
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294 >>> person(b'Foo Bar <foo@bar>') |
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295 'Foo Bar' |
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296 >>> person(b'"Foo Bar" <foo@bar>') |
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297 'Foo Bar' |
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298 >>> person(b'"Foo \"buz\" Bar" <foo@bar>') |
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299 'Foo "buz" Bar' |
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300 >>> # The following are invalid, but do exist in real-life |
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301 ... |
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302 >>> person(b'Foo "buz" Bar <foo@bar>') |
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303 'Foo "buz" Bar' |
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304 >>> person(b'"Foo Bar <foo@bar>') |
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305 'Foo Bar' |
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306 """ |
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307 if '@' not in author: |
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308 return author |
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309 f = author.find('<') |
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310 if f != -1: |
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311 return author[:f].strip(' "').replace('\\"', '"') |
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312 f = author.find('@') |
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313 return author[:f].replace('.', ' ') |
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314 |
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315 @templatefilter('revescape') |
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316 def revescape(text): |
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317 """Any text. Escapes all "special" characters, except @. |
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318 Forward slashes are escaped twice to prevent web servers from prematurely |
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319 unescaping them. For example, "@foo bar/baz" becomes "@foo%20bar%252Fbaz". |
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320 """ |
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321 return urlreq.quote(text, safe='/@').replace('/', '%252F') |
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322 |
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323 @templatefilter('rfc3339date') |
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324 def rfc3339date(text): |
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325 """Date. Returns a date using the Internet date format |
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326 specified in RFC 3339: "2009-08-18T13:00:13+02:00". |
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327 """ |
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328 return dateutil.datestr(text, "%Y-%m-%dT%H:%M:%S%1:%2") |
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329 |
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330 @templatefilter('rfc822date') |
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331 def rfc822date(text): |
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332 """Date. Returns a date using the same format used in email |
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333 headers: "Tue, 18 Aug 2009 13:00:13 +0200". |
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334 """ |
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335 return dateutil.datestr(text, "%a, %d %b %Y %H:%M:%S %1%2") |
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336 |
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337 @templatefilter('short') |
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338 def short(text): |
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339 """Changeset hash. Returns the short form of a changeset hash, |
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340 i.e. a 12 hexadecimal digit string. |
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341 """ |
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342 return text[:12] |
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343 |
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344 @templatefilter('shortbisect') |
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345 def shortbisect(label): |
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346 """Any text. Treats `label` as a bisection status, and |
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347 returns a single-character representing the status (G: good, B: bad, |
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348 S: skipped, U: untested, I: ignored). Returns single space if `text` |
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349 is not a valid bisection status. |
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350 """ |
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351 if label: |
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352 return label[0:1].upper() |
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353 return ' ' |
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354 |
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355 @templatefilter('shortdate') |
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356 def shortdate(text): |
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357 """Date. Returns a date like "2006-09-18".""" |
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358 return dateutil.shortdate(text) |
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359 |
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360 @templatefilter('slashpath') |
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361 def slashpath(path): |
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362 """Any text. Replaces the native path separator with slash.""" |
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363 return util.pconvert(path) |
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364 |
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365 @templatefilter('splitlines') |
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366 def splitlines(text): |
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367 """Any text. Split text into a list of lines.""" |
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368 return templateutil.hybridlist(text.splitlines(), name='line') |
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369 |
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370 @templatefilter('stringescape') |
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371 def stringescape(text): |
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372 return util.escapestr(text) |
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373 |
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374 @templatefilter('stringify') |
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375 def stringify(thing): |
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376 """Any type. Turns the value into text by converting values into |
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377 text and concatenating them. |
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378 """ |
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379 return templateutil.stringify(thing) |
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380 |
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381 @templatefilter('stripdir') |
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382 def stripdir(text): |
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383 """Treat the text as path and strip a directory level, if |
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384 possible. For example, "foo" and "foo/bar" becomes "foo". |
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385 """ |
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386 dir = os.path.dirname(text) |
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387 if dir == "": |
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388 return os.path.basename(text) |
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389 else: |
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390 return dir |
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391 |
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392 @templatefilter('tabindent') |
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393 def tabindent(text): |
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394 """Any text. Returns the text, with every non-empty line |
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395 except the first starting with a tab character. |
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396 """ |
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397 return indent(text, '\t') |
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398 |
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399 @templatefilter('upper') |
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400 def upper(text): |
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401 """Any text. Converts the text to uppercase.""" |
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402 return encoding.upper(text) |
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403 |
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404 @templatefilter('urlescape') |
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405 def urlescape(text): |
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406 """Any text. Escapes all "special" characters. For example, |
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407 "foo bar" becomes "foo%20bar". |
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408 """ |
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409 return urlreq.quote(text) |
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410 |
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411 @templatefilter('user') |
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412 def userfilter(text): |
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413 """Any text. Returns a short representation of a user name or email |
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414 address.""" |
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415 return util.shortuser(text) |
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416 |
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417 @templatefilter('emailuser') |
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418 def emailuser(text): |
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419 """Any text. Returns the user portion of an email address.""" |
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420 return util.emailuser(text) |
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421 |
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422 @templatefilter('utf8') |
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423 def utf8(text): |
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424 """Any text. Converts from the local character encoding to UTF-8.""" |
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425 return encoding.fromlocal(text) |
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426 |
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427 @templatefilter('xmlescape') |
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428 def xmlescape(text): |
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429 text = (text |
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430 .replace('&', '&') |
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431 .replace('<', '<') |
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432 .replace('>', '>') |
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433 .replace('"', '"') |
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434 .replace("'", ''')) # ' invalid in HTML |
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435 return re.sub('[\x00-\x08\x0B\x0C\x0E-\x1F]', ' ', text) |
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436 |
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437 def websub(text, websubtable): |
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438 """:websub: Any text. Only applies to hgweb. Applies the regular |
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439 expression replacements defined in the websub section. |
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440 """ |
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441 if websubtable: |
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442 for regexp, format in websubtable: |
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443 text = regexp.sub(format, text) |
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444 return text |
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445 |
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446 def loadfilter(ui, extname, registrarobj): |
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447 """Load template filter from specified registrarobj |
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448 """ |
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449 for name, func in registrarobj._table.iteritems(): |
6b3b958daf03
registrar: add templatefilter to mark a function as template filter (API)
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents:
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450 filters[name] = func |
6b3b958daf03
registrar: add templatefilter to mark a function as template filter (API)
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents:
28213
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changeset
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451 |
13591
264f292a0c6f
templatefilters: move doc from templates.txt to docstrings
Patrick Mezard <pmezard@gmail.com>
parents:
13590
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452 # tell hggettext to extract docstrings from these functions: |
264f292a0c6f
templatefilters: move doc from templates.txt to docstrings
Patrick Mezard <pmezard@gmail.com>
parents:
13590
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changeset
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453 i18nfunctions = filters.values() |