Mercurial > hg
annotate mercurial/color.py @ 46779:49fd21f32695
revlog: guarantee that p1 != null if a non-null parent exists
This change does not affect the hashing (which already did this
transformation), but can change the log output in the rare case where
this behavior was observed in repositories. The change can simplify
iteration code where regular changesets and merges are distinct
branches.
Differential Revision: https://phab.mercurial-scm.org/D10150
author | Joerg Sonnenberger <joerg@bec.de> |
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date | Wed, 10 Mar 2021 18:09:21 +0100 |
parents | d3f776c4760e |
children | fd2cf9e0c64e |
rev | line source |
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1 # utility for color output for Mercurial commands |
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2 # |
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3 # Copyright (C) 2007 Kevin Christen <kevin.christen@gmail.com> and other |
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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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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 re |
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11 |
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12 from .i18n import _ |
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13 from .pycompat import getattr |
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14 |
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15 from . import ( |
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16 encoding, |
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17 pycompat, |
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18 ) |
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19 |
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20 from .utils import stringutil |
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21 |
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22 try: |
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23 import curses |
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24 |
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25 # Mapping from effect name to terminfo attribute name (or raw code) or |
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26 # color number. This will also force-load the curses module. |
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27 _baseterminfoparams = { |
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28 b'none': (True, b'sgr0', b''), |
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29 b'standout': (True, b'smso', b''), |
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30 b'underline': (True, b'smul', b''), |
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31 b'reverse': (True, b'rev', b''), |
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32 b'inverse': (True, b'rev', b''), |
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33 b'blink': (True, b'blink', b''), |
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34 b'dim': (True, b'dim', b''), |
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35 b'bold': (True, b'bold', b''), |
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36 b'invisible': (True, b'invis', b''), |
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37 b'italic': (True, b'sitm', b''), |
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38 b'black': (False, curses.COLOR_BLACK, b''), |
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39 b'red': (False, curses.COLOR_RED, b''), |
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40 b'green': (False, curses.COLOR_GREEN, b''), |
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41 b'yellow': (False, curses.COLOR_YELLOW, b''), |
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42 b'blue': (False, curses.COLOR_BLUE, b''), |
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43 b'magenta': (False, curses.COLOR_MAGENTA, b''), |
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44 b'cyan': (False, curses.COLOR_CYAN, b''), |
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45 b'white': (False, curses.COLOR_WHITE, b''), |
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46 } |
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47 except (ImportError, AttributeError): |
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48 curses = None |
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49 _baseterminfoparams = {} |
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50 |
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51 # start and stop parameters for effects |
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52 _effects = { |
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53 b'none': 0, |
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54 b'black': 30, |
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55 b'red': 31, |
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56 b'green': 32, |
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57 b'yellow': 33, |
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58 b'blue': 34, |
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59 b'magenta': 35, |
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60 b'cyan': 36, |
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61 b'white': 37, |
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62 b'bold': 1, |
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63 b'italic': 3, |
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64 b'underline': 4, |
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65 b'inverse': 7, |
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66 b'dim': 2, |
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67 b'black_background': 40, |
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68 b'red_background': 41, |
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69 b'green_background': 42, |
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70 b'yellow_background': 43, |
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71 b'blue_background': 44, |
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72 b'purple_background': 45, |
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73 b'cyan_background': 46, |
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74 b'white_background': 47, |
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75 } |
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76 |
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77 _defaultstyles = { |
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78 b'grep.match': b'red bold', |
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79 b'grep.linenumber': b'green', |
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80 b'grep.rev': b'blue', |
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81 b'grep.sep': b'cyan', |
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82 b'grep.filename': b'magenta', |
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83 b'grep.user': b'magenta', |
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84 b'grep.date': b'magenta', |
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85 b'grep.inserted': b'green bold', |
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86 b'grep.deleted': b'red bold', |
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87 b'bookmarks.active': b'green', |
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88 b'branches.active': b'none', |
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89 b'branches.closed': b'black bold', |
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90 b'branches.current': b'green', |
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91 b'branches.inactive': b'none', |
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92 b'diff.changed': b'white', |
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93 b'diff.deleted': b'red', |
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94 b'diff.deleted.changed': b'red bold underline', |
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95 b'diff.deleted.unchanged': b'red', |
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96 b'diff.diffline': b'bold', |
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97 b'diff.extended': b'cyan bold', |
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98 b'diff.file_a': b'red bold', |
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99 b'diff.file_b': b'green bold', |
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100 b'diff.hunk': b'magenta', |
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101 b'diff.inserted': b'green', |
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102 b'diff.inserted.changed': b'green bold underline', |
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103 b'diff.inserted.unchanged': b'green', |
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104 b'diff.tab': b'', |
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105 b'diff.trailingwhitespace': b'bold red_background', |
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106 b'changeset.public': b'', |
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107 b'changeset.draft': b'', |
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108 b'changeset.secret': b'', |
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109 b'diffstat.deleted': b'red', |
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110 b'diffstat.inserted': b'green', |
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111 b'formatvariant.name.mismatchconfig': b'red', |
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112 b'formatvariant.name.mismatchdefault': b'yellow', |
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113 b'formatvariant.name.uptodate': b'green', |
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114 b'formatvariant.repo.mismatchconfig': b'red', |
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115 b'formatvariant.repo.mismatchdefault': b'yellow', |
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116 b'formatvariant.repo.uptodate': b'green', |
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117 b'formatvariant.config.special': b'yellow', |
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118 b'formatvariant.config.default': b'green', |
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119 b'formatvariant.default': b'', |
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120 b'histedit.remaining': b'red bold', |
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121 b'ui.addremove.added': b'green', |
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122 b'ui.addremove.removed': b'red', |
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123 b'ui.error': b'red', |
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124 b'ui.prompt': b'yellow', |
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125 b'log.changeset': b'yellow', |
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126 b'patchbomb.finalsummary': b'', |
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127 b'patchbomb.from': b'magenta', |
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128 b'patchbomb.to': b'cyan', |
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129 b'patchbomb.subject': b'green', |
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130 b'patchbomb.diffstats': b'', |
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131 b'rebase.rebased': b'blue', |
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132 b'rebase.remaining': b'red bold', |
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133 b'resolve.resolved': b'green bold', |
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134 b'resolve.unresolved': b'red bold', |
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135 b'shelve.age': b'cyan', |
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136 b'shelve.newest': b'green bold', |
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137 b'shelve.name': b'blue bold', |
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138 b'status.added': b'green bold', |
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139 b'status.clean': b'none', |
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140 b'status.copied': b'none', |
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141 b'status.deleted': b'cyan bold underline', |
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142 b'status.ignored': b'black bold', |
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143 b'status.modified': b'blue bold', |
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144 b'status.removed': b'red bold', |
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145 b'status.unknown': b'magenta bold underline', |
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146 b'tags.normal': b'green', |
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147 b'tags.local': b'black bold', |
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148 b'upgrade-repo.requirement.preserved': b'cyan', |
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149 b'upgrade-repo.requirement.added': b'green', |
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150 b'upgrade-repo.requirement.removed': b'red', |
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151 } |
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152 |
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153 |
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154 def loadcolortable(ui, extname, colortable): |
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155 _defaultstyles.update(colortable) |
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156 |
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157 |
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158 def _terminfosetup(ui, mode, formatted): |
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159 '''Initialize terminfo data and the terminal if we're in terminfo mode.''' |
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160 |
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161 # If we failed to load curses, we go ahead and return. |
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162 if curses is None: |
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163 return |
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164 # Otherwise, see what the config file says. |
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165 if mode not in (b'auto', b'terminfo'): |
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166 return |
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167 ui._terminfoparams.update(_baseterminfoparams) |
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168 |
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169 for key, val in ui.configitems(b'color'): |
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170 if key.startswith(b'color.'): |
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171 newval = (False, int(val), b'') |
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172 ui._terminfoparams[key[6:]] = newval |
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173 elif key.startswith(b'terminfo.'): |
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174 newval = (True, b'', val.replace(b'\\E', b'\x1b')) |
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175 ui._terminfoparams[key[9:]] = newval |
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176 try: |
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177 curses.setupterm() |
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178 except curses.error: |
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179 ui._terminfoparams.clear() |
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180 return |
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181 |
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182 for key, (b, e, c) in ui._terminfoparams.copy().items(): |
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183 if not b: |
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184 continue |
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185 if not c and not curses.tigetstr(pycompat.sysstr(e)): |
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186 # Most terminals don't support dim, invis, etc, so don't be |
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187 # noisy and use ui.debug(). |
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188 ui.debug(b"no terminfo entry for %s\n" % e) |
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189 del ui._terminfoparams[key] |
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190 if not curses.tigetstr('setaf') or not curses.tigetstr('setab'): |
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191 # Only warn about missing terminfo entries if we explicitly asked for |
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192 # terminfo mode and we're in a formatted terminal. |
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193 if mode == b"terminfo" and formatted: |
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194 ui.warn( |
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195 _( |
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196 b"no terminfo entry for setab/setaf: reverting to " |
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197 b"ECMA-48 color\n" |
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198 ) |
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199 ) |
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200 ui._terminfoparams.clear() |
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201 |
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202 |
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203 def setup(ui): |
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204 """configure color on a ui |
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205 |
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206 That function both set the colormode for the ui object and read |
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207 the configuration looking for custom colors and effect definitions.""" |
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208 mode = _modesetup(ui) |
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209 ui._colormode = mode |
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210 if mode and mode != b'debug': |
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211 configstyles(ui) |
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212 |
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213 |
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214 def _modesetup(ui): |
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215 if ui.plain(b'color'): |
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216 return None |
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217 config = ui.config(b'ui', b'color') |
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218 if config == b'debug': |
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219 return b'debug' |
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220 |
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221 auto = config == b'auto' |
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222 always = False |
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223 if not auto and stringutil.parsebool(config): |
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224 # We want the config to behave like a boolean, "on" is actually auto, |
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225 # but "always" value is treated as a special case to reduce confusion. |
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226 if ( |
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227 ui.configsource(b'ui', b'color') == b'--color' |
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228 or config == b'always' |
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229 ): |
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230 always = True |
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231 else: |
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232 auto = True |
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233 |
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234 if not always and not auto: |
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235 return None |
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236 |
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237 formatted = always or ( |
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238 encoding.environ.get(b'TERM') != b'dumb' and ui.formatted() |
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239 ) |
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240 |
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241 mode = ui.config(b'color', b'mode') |
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242 |
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243 # If pager is active, color.pagermode overrides color.mode. |
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244 if getattr(ui, 'pageractive', False): |
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245 mode = ui.config(b'color', b'pagermode', mode) |
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246 |
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247 realmode = mode |
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249 from . import win32 |
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250 |
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251 term = encoding.environ.get(b'TERM') |
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252 # TERM won't be defined in a vanilla cmd.exe environment. |
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253 |
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254 # UNIX-like environments on Windows such as Cygwin and MSYS will |
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255 # set TERM. They appear to make a best effort attempt at setting it |
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256 # to something appropriate. However, not all environments with TERM |
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257 # defined support ANSI. |
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258 ansienviron = term and b'xterm' in term |
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259 |
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260 if mode == b'auto': |
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261 # Since "ansi" could result in terminal gibberish, we error on the |
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262 # side of selecting "win32". However, if w32effects is not defined, |
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263 # we almost certainly don't support "win32", so don't even try. |
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264 # w32effects is not populated when stdout is redirected, so checking |
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265 # it first avoids win32 calls in a state known to error out. |
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266 if ansienviron or not w32effects or win32.enablevtmode(): |
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267 realmode = b'ansi' |
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268 else: |
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269 realmode = b'win32' |
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270 # An empty w32effects is a clue that stdout is redirected, and thus |
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271 # cannot enable VT mode. |
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272 elif mode == b'ansi' and w32effects and not ansienviron: |
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273 win32.enablevtmode() |
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274 elif mode == b'auto': |
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275 realmode = b'ansi' |
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276 |
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277 def modewarn(): |
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278 # only warn if color.mode was explicitly set and we're in |
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279 # a formatted terminal |
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280 if mode == realmode and formatted: |
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281 ui.warn(_(b'warning: failed to set color mode to %s\n') % mode) |
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282 |
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283 if realmode == b'win32': |
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284 ui._terminfoparams.clear() |
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285 if not w32effects: |
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286 modewarn() |
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287 return None |
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288 elif realmode == b'ansi': |
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289 ui._terminfoparams.clear() |
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290 elif realmode == b'terminfo': |
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291 _terminfosetup(ui, mode, formatted) |
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292 if not ui._terminfoparams: |
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293 ## FIXME Shouldn't we return None in this case too? |
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294 modewarn() |
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295 realmode = b'ansi' |
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296 else: |
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297 return None |
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298 |
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299 if always or (auto and formatted): |
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300 return realmode |
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301 return None |
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302 |
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303 |
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304 def configstyles(ui): |
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305 ui._styles.update(_defaultstyles) |
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306 for status, cfgeffects in ui.configitems(b'color'): |
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307 if b'.' not in status or status.startswith((b'color.', b'terminfo.')): |
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308 continue |
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309 cfgeffects = ui.configlist(b'color', status) |
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310 if cfgeffects: |
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311 good = [] |
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312 for e in cfgeffects: |
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313 if valideffect(ui, e): |
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314 good.append(e) |
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315 else: |
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316 ui.warn( |
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317 _( |
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318 b"ignoring unknown color/effect %s " |
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319 b"(configured in color.%s)\n" |
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320 ) |
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321 % (stringutil.pprint(e), status) |
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322 ) |
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323 ui._styles[status] = b' '.join(good) |
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324 |
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325 |
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326 def _activeeffects(ui): |
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327 '''Return the effects map for the color mode set on the ui.''' |
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328 if ui._colormode == b'win32': |
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329 return w32effects |
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330 elif ui._colormode is not None: |
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331 return _effects |
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332 return {} |
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333 |
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334 |
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335 def valideffect(ui, effect): |
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336 """Determine if the effect is valid or not.""" |
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337 return (not ui._terminfoparams and effect in _activeeffects(ui)) or ( |
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338 effect in ui._terminfoparams or effect[:-11] in ui._terminfoparams |
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339 ) |
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340 |
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341 |
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342 def _effect_str(ui, effect): |
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343 '''Helper function for render_effects().''' |
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344 |
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345 bg = False |
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346 if effect.endswith(b'_background'): |
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347 bg = True |
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348 effect = effect[:-11] |
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349 try: |
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350 attr, val, termcode = ui._terminfoparams[effect] |
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351 except KeyError: |
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352 return b'' |
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353 if attr: |
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354 if termcode: |
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355 return termcode |
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356 else: |
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357 return curses.tigetstr(pycompat.sysstr(val)) |
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358 elif bg: |
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359 return curses.tparm(curses.tigetstr('setab'), val) |
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360 else: |
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361 return curses.tparm(curses.tigetstr('setaf'), val) |
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362 |
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363 |
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364 def _mergeeffects(text, start, stop): |
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365 """Insert start sequence at every occurrence of stop sequence |
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366 |
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367 >>> s = _mergeeffects(b'cyan', b'[C]', b'|') |
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368 >>> s = _mergeeffects(s + b'yellow', b'[Y]', b'|') |
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369 >>> s = _mergeeffects(b'ma' + s + b'genta', b'[M]', b'|') |
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370 >>> s = _mergeeffects(b'red' + s, b'[R]', b'|') |
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371 >>> s |
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372 '[R]red[M]ma[Y][C]cyan|[R][M][Y]yellow|[R][M]genta|' |
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373 """ |
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374 parts = [] |
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375 for t in text.split(stop): |
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376 if not t: |
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377 continue |
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378 parts.extend([start, t, stop]) |
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379 return b''.join(parts) |
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380 |
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381 |
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382 def _render_effects(ui, text, effects): |
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383 """Wrap text in commands to turn on each effect.""" |
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384 if not text: |
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385 return text |
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386 if ui._terminfoparams: |
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387 start = b''.join( |
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388 _effect_str(ui, effect) for effect in [b'none'] + effects.split() |
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389 ) |
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390 stop = _effect_str(ui, b'none') |
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391 else: |
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392 activeeffects = _activeeffects(ui) |
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393 start = [ |
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394 pycompat.bytestr(activeeffects[e]) |
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395 for e in [b'none'] + effects.split() |
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396 ] |
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397 start = b'\033[' + b';'.join(start) + b'm' |
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398 stop = b'\033[' + pycompat.bytestr(activeeffects[b'none']) + b'm' |
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399 return _mergeeffects(text, start, stop) |
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400 |
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401 |
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402 _ansieffectre = re.compile(br'\x1b\[[0-9;]*m') |
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403 |
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404 |
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405 def stripeffects(text): |
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406 """Strip ANSI control codes which could be inserted by colorlabel()""" |
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407 return _ansieffectre.sub(b'', text) |
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408 |
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409 |
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410 def colorlabel(ui, msg, label): |
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411 """add color control code according to the mode""" |
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412 if ui._colormode == b'debug': |
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413 if label and msg: |
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414 if msg.endswith(b'\n'): |
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415 msg = b"[%s|%s]\n" % (label, msg[:-1]) |
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416 else: |
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417 msg = b"[%s|%s]" % (label, msg) |
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418 elif ui._colormode is not None: |
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419 effects = [] |
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420 for l in label.split(): |
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421 s = ui._styles.get(l, b'') |
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422 if s: |
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423 effects.append(s) |
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424 elif valideffect(ui, l): |
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425 effects.append(l) |
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426 effects = b' '.join(effects) |
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427 if effects: |
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428 msg = b'\n'.join( |
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429 [ |
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430 _render_effects(ui, line, effects) |
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431 for line in msg.split(b'\n') |
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432 ] |
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433 ) |
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434 return msg |
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435 |
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436 |
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437 w32effects = None |
34645 | 438 if pycompat.iswindows: |
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439 import ctypes |
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440 |
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441 _kernel32 = ctypes.windll.kernel32 # pytype: disable=module-attr |
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442 |
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443 _WORD = ctypes.c_ushort |
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444 |
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445 _INVALID_HANDLE_VALUE = -1 |
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446 |
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447 class _COORD(ctypes.Structure): |
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448 _fields_ = [('X', ctypes.c_short), ('Y', ctypes.c_short)] |
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449 |
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450 class _SMALL_RECT(ctypes.Structure): |
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451 _fields_ = [ |
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452 ('Left', ctypes.c_short), |
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453 ('Top', ctypes.c_short), |
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454 ('Right', ctypes.c_short), |
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455 ('Bottom', ctypes.c_short), |
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456 ] |
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457 |
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458 class _CONSOLE_SCREEN_BUFFER_INFO(ctypes.Structure): |
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459 _fields_ = [ |
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460 ('dwSize', _COORD), |
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461 ('dwCursorPosition', _COORD), |
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462 ('wAttributes', _WORD), |
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463 ('srWindow', _SMALL_RECT), |
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464 ('dwMaximumWindowSize', _COORD), |
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465 ] |
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466 |
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467 _STD_OUTPUT_HANDLE = 0xFFFFFFF5 # (DWORD)-11 |
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468 _STD_ERROR_HANDLE = 0xFFFFFFF4 # (DWORD)-12 |
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469 |
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470 _FOREGROUND_BLUE = 0x0001 |
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471 _FOREGROUND_GREEN = 0x0002 |
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472 _FOREGROUND_RED = 0x0004 |
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473 _FOREGROUND_INTENSITY = 0x0008 |
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474 |
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475 _BACKGROUND_BLUE = 0x0010 |
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476 _BACKGROUND_GREEN = 0x0020 |
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477 _BACKGROUND_RED = 0x0040 |
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478 _BACKGROUND_INTENSITY = 0x0080 |
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479 |
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480 _COMMON_LVB_REVERSE_VIDEO = 0x4000 |
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481 _COMMON_LVB_UNDERSCORE = 0x8000 |
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482 |
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483 # http://msdn.microsoft.com/en-us/library/ms682088%28VS.85%29.aspx |
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484 w32effects = { |
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485 b'none': -1, |
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486 b'black': 0, |
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487 b'red': _FOREGROUND_RED, |
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488 b'green': _FOREGROUND_GREEN, |
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489 b'yellow': _FOREGROUND_RED | _FOREGROUND_GREEN, |
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490 b'blue': _FOREGROUND_BLUE, |
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491 b'magenta': _FOREGROUND_BLUE | _FOREGROUND_RED, |
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492 b'cyan': _FOREGROUND_BLUE | _FOREGROUND_GREEN, |
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493 b'white': _FOREGROUND_RED | _FOREGROUND_GREEN | _FOREGROUND_BLUE, |
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494 b'bold': _FOREGROUND_INTENSITY, |
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495 b'black_background': 0x100, # unused value > 0x0f |
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496 b'red_background': _BACKGROUND_RED, |
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497 b'green_background': _BACKGROUND_GREEN, |
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498 b'yellow_background': _BACKGROUND_RED | _BACKGROUND_GREEN, |
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499 b'blue_background': _BACKGROUND_BLUE, |
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500 b'purple_background': _BACKGROUND_BLUE | _BACKGROUND_RED, |
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501 b'cyan_background': _BACKGROUND_BLUE | _BACKGROUND_GREEN, |
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502 b'white_background': ( |
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503 _BACKGROUND_RED | _BACKGROUND_GREEN | _BACKGROUND_BLUE |
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504 ), |
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505 b'bold_background': _BACKGROUND_INTENSITY, |
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506 b'underline': _COMMON_LVB_UNDERSCORE, # double-byte charsets only |
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507 b'inverse': _COMMON_LVB_REVERSE_VIDEO, # double-byte charsets only |
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508 } |
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509 |
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510 passthrough = { |
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511 _FOREGROUND_INTENSITY, |
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512 _BACKGROUND_INTENSITY, |
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513 _COMMON_LVB_UNDERSCORE, |
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514 _COMMON_LVB_REVERSE_VIDEO, |
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515 } |
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516 |
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517 stdout = _kernel32.GetStdHandle( |
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518 _STD_OUTPUT_HANDLE |
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519 ) # don't close the handle returned |
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520 if stdout is None or stdout == _INVALID_HANDLE_VALUE: |
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521 w32effects = None |
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522 else: |
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523 csbi = _CONSOLE_SCREEN_BUFFER_INFO() |
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524 if not _kernel32.GetConsoleScreenBufferInfo(stdout, ctypes.byref(csbi)): |
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525 # stdout may not support GetConsoleScreenBufferInfo() |
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526 # when called from subprocess or redirected |
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527 w32effects = None |
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528 else: |
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529 origattr = csbi.wAttributes |
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530 ansire = re.compile( |
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531 br'\033\[([^m]*)m([^\033]*)(.*)', re.MULTILINE | re.DOTALL |
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532 ) |
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533 |
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534 def win32print(ui, writefunc, text, **opts): |
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535 label = opts.get('label', b'') |
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536 attr = origattr |
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537 |
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538 def mapcolor(val, attr): |
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539 if val == -1: |
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540 return origattr |
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541 elif val in passthrough: |
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542 return attr | val |
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543 elif val > 0x0F: |
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544 return (val & 0x70) | (attr & 0x8F) |
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545 else: |
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546 return (val & 0x07) | (attr & 0xF8) |
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547 |
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548 # determine console attributes based on labels |
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549 for l in label.split(): |
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550 style = ui._styles.get(l, b'') |
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551 for effect in style.split(): |
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552 try: |
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553 attr = mapcolor(w32effects[effect], attr) |
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554 except KeyError: |
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555 # w32effects could not have certain attributes so we skip |
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556 # them if not found |
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557 pass |
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558 # hack to ensure regexp finds data |
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559 if not text.startswith(b'\033['): |
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560 text = b'\033[m' + text |
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561 |
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562 # Look for ANSI-like codes embedded in text |
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563 m = re.match(ansire, text) |
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564 |
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565 try: |
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566 while m: |
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567 for sattr in m.group(1).split(b';'): |
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568 if sattr: |
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569 attr = mapcolor(int(sattr), attr) |
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570 ui.flush() |
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571 _kernel32.SetConsoleTextAttribute(stdout, attr) |
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572 writefunc(m.group(2)) |
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573 m = re.match(ansire, m.group(3)) |
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574 finally: |
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575 # Explicitly reset original attributes |
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576 ui.flush() |
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577 _kernel32.SetConsoleTextAttribute(stdout, origattr) |