Mercurial > hg
annotate mercurial/templatefilters.py @ 14554:68db17047637
hg: add peer method
author | Matt Mackall <mpm@selenic.com> |
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date | Fri, 10 Jun 2011 11:43:38 -0500 |
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1 # template-filters.py - common template expansion filters |
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2 # |
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3 # Copyright 2005-2008 Matt Mackall <mpm@selenic.com> |
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4 # |
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5 # This software may be used and distributed according to the terms of the |
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7 |
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8 import cgi, re, os, time, urllib |
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9 import encoding, node, util |
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10 |
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11 def addbreaks(text): |
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12 """:addbreaks: Any text. Add an XHTML "<br />" tag before the end of |
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13 every line except the last. |
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14 """ |
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15 return text.replace('\n', '<br/>\n') |
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16 |
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17 agescales = [("year", 3600 * 24 * 365), |
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18 ("month", 3600 * 24 * 30), |
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19 ("week", 3600 * 24 * 7), |
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20 ("day", 3600 * 24), |
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21 ("hour", 3600), |
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22 ("minute", 60), |
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23 ("second", 1)] |
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24 |
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25 def age(date): |
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26 """:age: Date. Returns a human-readable date/time difference between the |
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27 given date/time and the current date/time. |
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28 """ |
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29 |
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30 def plural(t, c): |
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31 if c == 1: |
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32 return t |
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33 return t + "s" |
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34 def fmt(t, c): |
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35 return "%d %s" % (c, plural(t, c)) |
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36 |
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37 now = time.time() |
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38 then = date[0] |
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39 future = False |
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40 if then > now: |
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41 future = True |
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42 delta = max(1, int(then - now)) |
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43 if delta > agescales[0][1] * 30: |
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44 return 'in the distant future' |
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45 else: |
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46 delta = max(1, int(now - then)) |
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47 if delta > agescales[0][1] * 2: |
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48 return util.shortdate(date) |
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49 |
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50 for t, s in agescales: |
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51 n = delta // s |
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52 if n >= 2 or s == 1: |
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53 if future: |
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54 return '%s from now' % fmt(t, n) |
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55 return '%s ago' % fmt(t, n) |
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56 |
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57 def basename(path): |
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58 """:basename: Any text. Treats the text as a path, and returns the last |
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59 component of the path after splitting by the path separator |
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60 (ignoring trailing separators). For example, "foo/bar/baz" becomes |
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61 "baz" and "foo/bar//" becomes "bar". |
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62 """ |
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63 return os.path.basename(path) |
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64 |
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65 def datefilter(text): |
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66 """:date: Date. Returns a date in a Unix date format, including the |
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67 timezone: "Mon Sep 04 15:13:13 2006 0700". |
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68 """ |
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69 return util.datestr(text) |
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70 |
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71 def domain(author): |
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72 """:domain: Any text. Finds the first string that looks like an email |
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73 address, and extracts just the domain component. Example: ``User |
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74 <user@example.com>`` becomes ``example.com``. |
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75 """ |
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76 f = author.find('@') |
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77 if f == -1: |
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78 return '' |
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79 author = author[f + 1:] |
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80 f = author.find('>') |
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81 if f >= 0: |
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82 author = author[:f] |
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83 return author |
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84 |
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85 def email(text): |
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86 """:email: Any text. Extracts the first string that looks like an email |
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87 address. Example: ``User <user@example.com>`` becomes |
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88 ``user@example.com``. |
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89 """ |
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90 return util.email(text) |
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91 |
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92 def escape(text): |
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93 """:escape: Any text. Replaces the special XML/XHTML characters "&", "<" |
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94 and ">" with XML entities. |
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95 """ |
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96 return cgi.escape(text, True) |
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97 |
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98 para_re = None |
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99 space_re = None |
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100 |
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101 def fill(text, width): |
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102 '''fill many paragraphs.''' |
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103 global para_re, space_re |
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104 if para_re is None: |
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105 para_re = re.compile('(\n\n|\n\\s*[-*]\\s*)', re.M) |
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106 space_re = re.compile(r' +') |
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107 |
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108 def findparas(): |
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109 start = 0 |
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110 while True: |
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111 m = para_re.search(text, start) |
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112 if not m: |
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113 uctext = unicode(text[start:], encoding.encoding) |
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114 w = len(uctext) |
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115 while 0 < w and uctext[w - 1].isspace(): |
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116 w -= 1 |
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117 yield (uctext[:w].encode(encoding.encoding), |
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118 uctext[w:].encode(encoding.encoding)) |
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119 break |
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120 yield text[start:m.start(0)], m.group(1) |
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121 start = m.end(1) |
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122 |
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123 return "".join([space_re.sub(' ', util.wrap(para, width=width)) + rest |
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124 for para, rest in findparas()]) |
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125 |
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126 def fill68(text): |
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127 """:fill68: Any text. Wraps the text to fit in 68 columns.""" |
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128 return fill(text, 68) |
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129 |
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130 def fill76(text): |
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131 """:fill76: Any text. Wraps the text to fit in 76 columns.""" |
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132 return fill(text, 76) |
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133 |
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134 def firstline(text): |
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135 """:firstline: Any text. Returns the first line of text.""" |
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136 try: |
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137 return text.splitlines(True)[0].rstrip('\r\n') |
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138 except IndexError: |
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139 return '' |
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140 |
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141 def hexfilter(text): |
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142 """:hex: Any text. Convert a binary Mercurial node identifier into |
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143 its long hexadecimal representation. |
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144 """ |
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145 return node.hex(text) |
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146 |
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147 def hgdate(text): |
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148 """:hgdate: Date. Returns the date as a pair of numbers: "1157407993 |
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149 25200" (Unix timestamp, timezone offset). |
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150 """ |
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151 return "%d %d" % text |
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152 |
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153 def isodate(text): |
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154 """:isodate: Date. Returns the date in ISO 8601 format: "2009-08-18 13:00 |
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155 +0200". |
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156 """ |
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157 return util.datestr(text, '%Y-%m-%d %H:%M %1%2') |
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158 |
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159 def isodatesec(text): |
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160 """:isodatesec: Date. Returns the date in ISO 8601 format, including |
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161 seconds: "2009-08-18 13:00:13 +0200". See also the rfc3339date |
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162 filter. |
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163 """ |
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164 return util.datestr(text, '%Y-%m-%d %H:%M:%S %1%2') |
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165 |
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166 def indent(text, prefix): |
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167 '''indent each non-empty line of text after first with prefix.''' |
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168 lines = text.splitlines() |
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169 num_lines = len(lines) |
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170 endswithnewline = text[-1:] == '\n' |
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171 def indenter(): |
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172 for i in xrange(num_lines): |
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173 l = lines[i] |
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174 if i and l.strip(): |
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175 yield prefix |
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176 yield l |
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177 if i < num_lines - 1 or endswithnewline: |
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178 yield '\n' |
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179 return "".join(indenter()) |
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180 |
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181 def json(obj): |
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182 if obj is None or obj is False or obj is True: |
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183 return {None: 'null', False: 'false', True: 'true'}[obj] |
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184 elif isinstance(obj, int) or isinstance(obj, float): |
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185 return str(obj) |
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186 elif isinstance(obj, str): |
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187 u = unicode(obj, encoding.encoding, 'replace') |
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188 return '"%s"' % jsonescape(u) |
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189 elif isinstance(obj, unicode): |
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190 return '"%s"' % jsonescape(obj) |
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191 elif hasattr(obj, 'keys'): |
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192 out = [] |
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193 for k, v in obj.iteritems(): |
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194 s = '%s: %s' % (json(k), json(v)) |
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195 out.append(s) |
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196 return '{' + ', '.join(out) + '}' |
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197 elif hasattr(obj, '__iter__'): |
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198 out = [] |
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199 for i in obj: |
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200 out.append(json(i)) |
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201 return '[' + ', '.join(out) + ']' |
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202 else: |
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203 raise TypeError('cannot encode type %s' % obj.__class__.__name__) |
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204 |
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205 def _uescape(c): |
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206 if ord(c) < 0x80: |
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207 return c |
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208 else: |
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209 return '\\u%04x' % ord(c) |
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210 |
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211 _escapes = [ |
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212 ('\\', '\\\\'), ('"', '\\"'), ('\t', '\\t'), ('\n', '\\n'), |
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213 ('\r', '\\r'), ('\f', '\\f'), ('\b', '\\b'), |
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214 ] |
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215 |
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216 def jsonescape(s): |
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217 for k, v in _escapes: |
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218 s = s.replace(k, v) |
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219 return ''.join(_uescape(c) for c in s) |
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220 |
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221 def localdate(text): |
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222 """:localdate: Date. Converts a date to local date.""" |
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223 return (text[0], util.makedate()[1]) |
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224 |
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225 def nonempty(str): |
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226 """:nonempty: Any text. Returns '(none)' if the string is empty.""" |
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227 return str or "(none)" |
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228 |
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229 def obfuscate(text): |
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230 """:obfuscate: Any text. Returns the input text rendered as a sequence of |
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231 XML entities. |
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232 """ |
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233 text = unicode(text, encoding.encoding, 'replace') |
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234 return ''.join(['&#%d;' % ord(c) for c in text]) |
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235 |
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236 def permissions(flags): |
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237 if "l" in flags: |
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238 return "lrwxrwxrwx" |
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239 if "x" in flags: |
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240 return "-rwxr-xr-x" |
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241 return "-rw-r--r--" |
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242 |
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243 def person(author): |
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244 """:person: Any text. Returns the text before an email address.""" |
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245 if not '@' in author: |
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246 return author |
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247 f = author.find('<') |
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248 if f != -1: |
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249 return author[:f].rstrip() |
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250 f = author.find('@') |
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251 return author[:f].replace('.', ' ') |
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252 |
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253 def rfc3339date(text): |
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254 """:rfc3339date: Date. Returns a date using the Internet date format |
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255 specified in RFC 3339: "2009-08-18T13:00:13+02:00". |
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256 """ |
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257 return util.datestr(text, "%Y-%m-%dT%H:%M:%S%1:%2") |
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258 |
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259 def rfc822date(text): |
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260 """:rfc822date: Date. Returns a date using the same format used in email |
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261 headers: "Tue, 18 Aug 2009 13:00:13 +0200". |
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262 """ |
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263 return util.datestr(text, "%a, %d %b %Y %H:%M:%S %1%2") |
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264 |
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265 def short(text): |
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266 """:short: Changeset hash. Returns the short form of a changeset hash, |
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267 i.e. a 12 hexadecimal digit string. |
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268 """ |
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269 return text[:12] |
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270 |
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271 def shortdate(text): |
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272 """:shortdate: Date. Returns a date like "2006-09-18".""" |
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273 return util.shortdate(text) |
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274 |
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275 def stringescape(text): |
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276 return text.encode('string_escape') |
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277 |
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278 def stringify(thing): |
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279 """:stringify: Any type. Turns the value into text by converting values into |
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280 text and concatenating them. |
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281 """ |
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282 if hasattr(thing, '__iter__') and not isinstance(thing, str): |
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283 return "".join([stringify(t) for t in thing if t is not None]) |
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284 return str(thing) |
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285 |
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286 def strip(text): |
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287 """:strip: Any text. Strips all leading and trailing whitespace.""" |
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288 return text.strip() |
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289 |
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290 def stripdir(text): |
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291 """:stripdir: Treat the text as path and strip a directory level, if |
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292 possible. For example, "foo" and "foo/bar" becomes "foo". |
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293 """ |
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294 dir = os.path.dirname(text) |
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295 if dir == "": |
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296 return os.path.basename(text) |
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297 else: |
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298 return dir |
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299 |
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300 def tabindent(text): |
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301 """:tabindent: Any text. Returns the text, with every line except the |
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302 first starting with a tab character. |
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303 """ |
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304 return indent(text, '\t') |
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305 |
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306 def urlescape(text): |
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307 """:urlescape: Any text. Escapes all "special" characters. For example, |
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308 "foo bar" becomes "foo%20bar". |
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309 """ |
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310 return urllib.quote(text) |
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311 |
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312 def userfilter(text): |
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313 """:user: Any text. Returns the user portion of an email address.""" |
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314 return util.shortuser(text) |
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315 |
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316 def xmlescape(text): |
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317 text = (text |
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318 .replace('&', '&') |
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319 .replace('<', '<') |
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320 .replace('>', '>') |
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321 .replace('"', '"') |
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322 .replace("'", ''')) # ' invalid in HTML |
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323 return re.sub('[\x00-\x08\x0B\x0C\x0E-\x1F]', ' ', text) |
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324 |
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325 filters = { |
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326 "addbreaks": addbreaks, |
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327 "age": age, |
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328 "basename": basename, |
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329 "date": datefilter, |
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330 "domain": domain, |
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331 "email": email, |
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332 "escape": escape, |
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333 "fill68": fill68, |
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334 "fill76": fill76, |
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335 "firstline": firstline, |
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336 "hex": hexfilter, |
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337 "hgdate": hgdate, |
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338 "isodate": isodate, |
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339 "isodatesec": isodatesec, |
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340 "json": json, |
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341 "jsonescape": jsonescape, |
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342 "localdate": localdate, |
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343 "nonempty": nonempty, |
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344 "obfuscate": obfuscate, |
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345 "permissions": permissions, |
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346 "person": person, |
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347 "rfc3339date": rfc3339date, |
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348 "rfc822date": rfc822date, |
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349 "short": short, |
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350 "shortdate": shortdate, |
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351 "stringescape": stringescape, |
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352 "stringify": stringify, |
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353 "strip": strip, |
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354 "stripdir": stripdir, |
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355 "tabindent": tabindent, |
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356 "urlescape": urlescape, |
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357 "user": userfilter, |
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358 "xmlescape": xmlescape, |
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359 } |
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360 |
264f292a0c6f
templatefilters: move doc from templates.txt to docstrings
Patrick Mezard <pmezard@gmail.com>
parents:
13590
diff
changeset
|
361 # tell hggettext to extract docstrings from these functions: |
264f292a0c6f
templatefilters: move doc from templates.txt to docstrings
Patrick Mezard <pmezard@gmail.com>
parents:
13590
diff
changeset
|
362 i18nfunctions = filters.values() |