Mercurial > hg
annotate mercurial/config.py @ 37762:7269b87f817c
scmutil: teach the file prefetch hook to handle multiple commits
The remainder of the commands that need prefetch deal with multiple revisions.
I initially coded this as a separate hook, but then it needed a list of files
to handle `diff` and `grep`, so it didn't seem worth keeping them separate.
Not every matcher will emit bad file messages (some are built from a list of
files that are known to exist). But it seems better to filter this in one place
than to push this on either each caller or each hook implementation.
author | Matt Harbison <matt_harbison@yahoo.com> |
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date | Sat, 14 Apr 2018 18:50:45 -0400 |
parents | 6d6bc544467a |
children | 48378d0e9479 |
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1 # config.py - configuration parsing for Mercurial |
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2 # |
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3 # Copyright 2009 Matt Mackall <mpm@selenic.com> and others |
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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 errno |
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11 import os |
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12 |
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13 from .i18n import _ |
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14 from . import ( |
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15 error, |
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16 pycompat, |
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17 util, |
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18 ) |
8144 | 19 |
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20 class config(object): |
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21 def __init__(self, data=None, includepaths=None): |
8144 | 22 self._data = {} |
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23 self._unset = [] |
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24 self._includepaths = includepaths or [] |
8144 | 25 if data: |
26 for k in data._data: | |
27 self._data[k] = data[k].copy() | |
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28 self._source = data._source.copy() |
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29 else: |
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30 self._source = util.cowdict() |
8144 | 31 def copy(self): |
32 return config(self) | |
33 def __contains__(self, section): | |
34 return section in self._data | |
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35 def hasitem(self, section, item): |
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36 return item in self._data.get(section, {}) |
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37 def __getitem__(self, section): |
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38 return self._data.get(section, {}) |
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39 def __iter__(self): |
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40 for d in self.sections(): |
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41 yield d |
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42 def update(self, src): |
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43 self._source = self._source.preparewrite() |
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44 for s, n in src._unset: |
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45 ds = self._data.get(s, None) |
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46 if ds is not None and n in ds: |
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47 self._data[s] = ds.preparewrite() |
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48 del self._data[s][n] |
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49 del self._source[(s, n)] |
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50 for s in src: |
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51 ds = self._data.get(s, None) |
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52 if ds: |
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53 self._data[s] = ds.preparewrite() |
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54 else: |
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55 self._data[s] = util.cowsortdict() |
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56 self._data[s].update(src._data[s]) |
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57 self._source.update(src._source) |
8144 | 58 def get(self, section, item, default=None): |
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59 return self._data.get(section, {}).get(item, default) |
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60 |
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61 def backup(self, section, item): |
17527 | 62 """return a tuple allowing restore to reinstall a previous value |
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63 |
17530 | 64 The main reason we need it is because it handles the "no data" case. |
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65 """ |
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66 try: |
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67 value = self._data[section][item] |
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68 source = self.source(section, item) |
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69 return (section, item, value, source) |
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70 except KeyError: |
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71 return (section, item) |
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72 |
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73 def source(self, section, item): |
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74 return self._source.get((section, item), "") |
8144 | 75 def sections(self): |
76 return sorted(self._data.keys()) | |
77 def items(self, section): | |
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78 return list(self._data.get(section, {}).iteritems()) |
8144 | 79 def set(self, section, item, value, source=""): |
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80 if pycompat.ispy3: |
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81 assert not isinstance(value, str), ( |
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82 'config values may not be unicode strings on Python 3') |
8144 | 83 if section not in self: |
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84 self._data[section] = util.cowsortdict() |
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85 else: |
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86 self._data[section] = self._data[section].preparewrite() |
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87 self._data[section][item] = value |
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88 if source: |
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89 self._source = self._source.preparewrite() |
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90 self._source[(section, item)] = source |
8144 | 91 |
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92 def restore(self, data): |
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93 """restore data returned by self.backup""" |
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94 self._source = self._source.preparewrite() |
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95 if len(data) == 4: |
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96 # restore old data |
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97 section, item, value, source = data |
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98 self._data[section] = self._data[section].preparewrite() |
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99 self._data[section][item] = value |
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100 self._source[(section, item)] = source |
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101 else: |
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102 # no data before, remove everything |
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103 section, item = data |
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104 if section in self._data: |
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105 self._data[section].pop(item, None) |
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106 self._source.pop((section, item), None) |
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107 |
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108 def parse(self, src, data, sections=None, remap=None, include=None): |
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109 sectionre = util.re.compile(br'\[([^\[]+)\]') |
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110 itemre = util.re.compile(br'([^=\s][^=]*?)\s*=\s*(.*\S|)') |
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111 contre = util.re.compile(br'\s+(\S|\S.*\S)\s*$') |
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112 emptyre = util.re.compile(br'(;|#|\s*$)') |
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113 commentre = util.re.compile(br'(;|#)') |
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114 unsetre = util.re.compile(br'%unset\s+(\S+)') |
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115 includere = util.re.compile(br'%include\s+(\S|\S.*\S)\s*$') |
8144 | 116 section = "" |
117 item = None | |
118 line = 0 | |
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119 cont = False |
8180 | 120 |
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121 if remap: |
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122 section = remap.get(section, section) |
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123 |
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124 for l in data.splitlines(True): |
8144 | 125 line += 1 |
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126 if line == 1 and l.startswith('\xef\xbb\xbf'): |
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127 # Someone set us up the BOM |
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128 l = l[3:] |
8144 | 129 if cont: |
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130 if commentre.match(l): |
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131 continue |
8144 | 132 m = contre.match(l) |
133 if m: | |
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134 if sections and section not in sections: |
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135 continue |
8144 | 136 v = self.get(section, item) + "\n" + m.group(1) |
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137 self.set(section, item, v, "%s:%d" % (src, line)) |
8144 | 138 continue |
139 item = None | |
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140 cont = False |
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141 m = includere.match(l) |
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142 |
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143 if m and include: |
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144 expanded = util.expandpath(m.group(1)) |
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145 includepaths = [os.path.dirname(src)] + self._includepaths |
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146 |
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147 for base in includepaths: |
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148 inc = os.path.normpath(os.path.join(base, expanded)) |
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149 |
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150 try: |
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151 include(inc, remap=remap, sections=sections) |
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152 break |
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153 except IOError as inst: |
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154 if inst.errno != errno.ENOENT: |
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155 raise error.ParseError(_("cannot include %s (%s)") |
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156 % (inc, inst.strerror), |
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157 "%s:%d" % (src, line)) |
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158 continue |
8144 | 159 if emptyre.match(l): |
160 continue | |
161 m = sectionre.match(l) | |
162 if m: | |
163 section = m.group(1) | |
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164 if remap: |
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165 section = remap.get(section, section) |
8144 | 166 if section not in self: |
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167 self._data[section] = util.cowsortdict() |
8144 | 168 continue |
169 m = itemre.match(l) | |
170 if m: | |
171 item = m.group(1) | |
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172 cont = True |
8193
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173 if sections and section not in sections: |
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174 continue |
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175 self.set(section, item, m.group(2), "%s:%d" % (src, line)) |
8144 | 176 continue |
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177 m = unsetre.match(l) |
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178 if m: |
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179 name = m.group(1) |
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180 if sections and section not in sections: |
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181 continue |
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182 if self.get(section, name) is not None: |
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183 self._data[section] = self._data[section].preparewrite() |
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184 del self._data[section][name] |
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185 self._unset.append((section, name)) |
8184
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186 continue |
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187 |
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188 raise error.ParseError(l.rstrip(), ("%s:%d" % (src, line))) |
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189 |
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190 def read(self, path, fp=None, sections=None, remap=None): |
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191 if not fp: |
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192 fp = util.posixfile(path, 'rb') |
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193 assert getattr(fp, 'mode', r'rb') == r'rb', ( |
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194 'config files must be opened in binary mode, got fp=%r mode=%r' % ( |
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195 fp, fp.mode)) |
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196 self.parse(path, fp.read(), |
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197 sections=sections, remap=remap, include=self.read) |
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198 |
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199 def parselist(value): |
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200 """parse a configuration value as a list of comma/space separated strings |
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201 |
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202 >>> parselist(b'this,is "a small" ,test') |
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203 ['this', 'is', 'a small', 'test'] |
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204 """ |
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205 |
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206 def _parse_plain(parts, s, offset): |
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207 whitespace = False |
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208 while offset < len(s) and (s[offset:offset + 1].isspace() |
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209 or s[offset:offset + 1] == ','): |
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210 whitespace = True |
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211 offset += 1 |
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212 if offset >= len(s): |
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213 return None, parts, offset |
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214 if whitespace: |
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215 parts.append('') |
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216 if s[offset:offset + 1] == '"' and not parts[-1]: |
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217 return _parse_quote, parts, offset + 1 |
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218 elif s[offset:offset + 1] == '"' and parts[-1][-1] == '\\': |
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219 parts[-1] = parts[-1][:-1] + s[offset:offset + 1] |
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220 return _parse_plain, parts, offset + 1 |
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221 parts[-1] += s[offset:offset + 1] |
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222 return _parse_plain, parts, offset + 1 |
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223 |
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224 def _parse_quote(parts, s, offset): |
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225 if offset < len(s) and s[offset:offset + 1] == '"': # "" |
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226 parts.append('') |
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227 offset += 1 |
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228 while offset < len(s) and (s[offset:offset + 1].isspace() or |
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229 s[offset:offset + 1] == ','): |
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230 offset += 1 |
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231 return _parse_plain, parts, offset |
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232 |
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233 while offset < len(s) and s[offset:offset + 1] != '"': |
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234 if (s[offset:offset + 1] == '\\' and offset + 1 < len(s) |
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235 and s[offset + 1:offset + 2] == '"'): |
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236 offset += 1 |
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237 parts[-1] += '"' |
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238 else: |
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239 parts[-1] += s[offset:offset + 1] |
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240 offset += 1 |
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241 |
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242 if offset >= len(s): |
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243 real_parts = _configlist(parts[-1]) |
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244 if not real_parts: |
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245 parts[-1] = '"' |
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246 else: |
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247 real_parts[0] = '"' + real_parts[0] |
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248 parts = parts[:-1] |
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249 parts.extend(real_parts) |
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250 return None, parts, offset |
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251 |
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252 offset += 1 |
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253 while offset < len(s) and s[offset:offset + 1] in [' ', ',']: |
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254 offset += 1 |
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255 |
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256 if offset < len(s): |
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257 if offset + 1 == len(s) and s[offset:offset + 1] == '"': |
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258 parts[-1] += '"' |
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259 offset += 1 |
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260 else: |
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261 parts.append('') |
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262 else: |
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263 return None, parts, offset |
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264 |
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265 return _parse_plain, parts, offset |
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266 |
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267 def _configlist(s): |
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268 s = s.rstrip(' ,') |
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269 if not s: |
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270 return [] |
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271 parser, parts, offset = _parse_plain, [''], 0 |
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272 while parser: |
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273 parser, parts, offset = parser(parts, s, offset) |
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274 return parts |
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275 |
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276 if value is not None and isinstance(value, bytes): |
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277 result = _configlist(value.lstrip(' ,\n')) |
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278 else: |
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279 result = value |
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280 return result or [] |