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annotate mercurial/color.py @ 31101:9021a94a7dbf

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color: move 'modesetup' into the core module Yet another piece of code moving from the extensions to the module in core!
author Pierre-Yves David <pierre-yves.david@ens-lyon.org>
date Thu, 22 Dec 2016 14:30:46 +0100
parents 8903f67b9ca8
children c1997c5d1ae3
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30652
1ec42bdd7874 color: move hgext.color._styles to mercurial.color.style
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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 from .i18n import _
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11
31101
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12 from . import (
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13 encoding,
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14 pycompat,
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15 util
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16 )
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17
30968
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18 try:
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19 import curses
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20 # Mapping from effect name to terminfo attribute name (or raw code) or
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21 # color number. This will also force-load the curses module.
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22 _terminfo_params = {'none': (True, 'sgr0', ''),
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23 'standout': (True, 'smso', ''),
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24 'underline': (True, 'smul', ''),
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25 'reverse': (True, 'rev', ''),
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26 'inverse': (True, 'rev', ''),
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27 'blink': (True, 'blink', ''),
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28 'dim': (True, 'dim', ''),
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29 'bold': (True, 'bold', ''),
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30 'invisible': (True, 'invis', ''),
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31 'italic': (True, 'sitm', ''),
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32 'black': (False, curses.COLOR_BLACK, ''),
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33 'red': (False, curses.COLOR_RED, ''),
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34 'green': (False, curses.COLOR_GREEN, ''),
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35 'yellow': (False, curses.COLOR_YELLOW, ''),
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36 'blue': (False, curses.COLOR_BLUE, ''),
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37 'magenta': (False, curses.COLOR_MAGENTA, ''),
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38 'cyan': (False, curses.COLOR_CYAN, ''),
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39 'white': (False, curses.COLOR_WHITE, '')}
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40 except ImportError:
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41 curses = None
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42 _terminfo_params = {}
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43
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44 # start and stop parameters for effects
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45 _effects = {'none': 0,
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46 'black': 30,
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47 'red': 31,
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48 'green': 32,
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49 'yellow': 33,
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50 'blue': 34,
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51 'magenta': 35,
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52 'cyan': 36,
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53 'white': 37,
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54 'bold': 1,
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55 'italic': 3,
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56 'underline': 4,
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57 'inverse': 7,
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58 'dim': 2,
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59 'black_background': 40,
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60 'red_background': 41,
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61 'green_background': 42,
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62 'yellow_background': 43,
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63 'blue_background': 44,
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64 'purple_background': 45,
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65 'cyan_background': 46,
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66 'white_background': 47}
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67
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68 _styles = {'grep.match': 'red bold',
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69 'grep.linenumber': 'green',
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70 'grep.rev': 'green',
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71 'grep.change': 'green',
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72 'grep.sep': 'cyan',
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73 'grep.filename': 'magenta',
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74 'grep.user': 'magenta',
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75 'grep.date': 'magenta',
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76 'bookmarks.active': 'green',
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77 'branches.active': 'none',
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78 'branches.closed': 'black bold',
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79 'branches.current': 'green',
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80 'branches.inactive': 'none',
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81 'diff.changed': 'white',
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82 'diff.deleted': 'red',
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83 'diff.diffline': 'bold',
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84 'diff.extended': 'cyan bold',
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85 'diff.file_a': 'red bold',
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86 'diff.file_b': 'green bold',
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87 'diff.hunk': 'magenta',
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88 'diff.inserted': 'green',
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89 'diff.tab': '',
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90 'diff.trailingwhitespace': 'bold red_background',
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91 'changeset.public' : '',
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92 'changeset.draft' : '',
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93 'changeset.secret' : '',
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94 'diffstat.deleted': 'red',
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95 'diffstat.inserted': 'green',
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96 'histedit.remaining': 'red bold',
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97 'ui.prompt': 'yellow',
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98 'log.changeset': 'yellow',
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99 'patchbomb.finalsummary': '',
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100 'patchbomb.from': 'magenta',
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101 'patchbomb.to': 'cyan',
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102 'patchbomb.subject': 'green',
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103 'patchbomb.diffstats': '',
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104 'rebase.rebased': 'blue',
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105 'rebase.remaining': 'red bold',
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106 'resolve.resolved': 'green bold',
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107 'resolve.unresolved': 'red bold',
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108 'shelve.age': 'cyan',
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109 'shelve.newest': 'green bold',
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110 'shelve.name': 'blue bold',
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111 'status.added': 'green bold',
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112 'status.clean': 'none',
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113 'status.copied': 'none',
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114 'status.deleted': 'cyan bold underline',
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115 'status.ignored': 'black bold',
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116 'status.modified': 'blue bold',
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117 'status.removed': 'red bold',
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118 'status.unknown': 'magenta bold underline',
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119 'tags.normal': 'green',
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120 'tags.local': 'black bold'}
30653
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121
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122 def loadcolortable(ui, extname, colortable):
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123 _styles.update(colortable)
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124
31100
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125 def _terminfosetup(ui, mode):
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126 '''Initialize terminfo data and the terminal if we're in terminfo mode.'''
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127
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128 # If we failed to load curses, we go ahead and return.
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129 if curses is None:
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130 return
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131 # Otherwise, see what the config file says.
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132 if mode not in ('auto', 'terminfo'):
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133 return
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134
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135 for key, val in ui.configitems('color'):
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136 if key.startswith('color.'):
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137 newval = (False, int(val), '')
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138 _terminfo_params[key[6:]] = newval
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139 elif key.startswith('terminfo.'):
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140 newval = (True, '', val.replace('\\E', '\x1b'))
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141 _terminfo_params[key[9:]] = newval
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142 try:
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143 curses.setupterm()
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144 except curses.error as e:
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145 _terminfo_params.clear()
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146 return
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147
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148 for key, (b, e, c) in _terminfo_params.items():
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149 if not b:
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150 continue
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151 if not c and not curses.tigetstr(e):
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152 # Most terminals don't support dim, invis, etc, so don't be
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153 # noisy and use ui.debug().
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154 ui.debug("no terminfo entry for %s\n" % e)
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155 del _terminfo_params[key]
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156 if not curses.tigetstr('setaf') or not curses.tigetstr('setab'):
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157 # Only warn about missing terminfo entries if we explicitly asked for
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158 # terminfo mode.
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159 if mode == "terminfo":
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160 ui.warn(_("no terminfo entry for setab/setaf: reverting to "
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161 "ECMA-48 color\n"))
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162 _terminfo_params.clear()
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163
31101
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164 def _modesetup(ui, coloropt):
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165 if coloropt == 'debug':
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166 return 'debug'
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167
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168 auto = (coloropt == 'auto')
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169 always = not auto and util.parsebool(coloropt)
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170 if not always and not auto:
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171 return None
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172
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173 formatted = (always or (encoding.environ.get('TERM') != 'dumb'
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174 and ui.formatted()))
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175
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176 mode = ui.config('color', 'mode', 'auto')
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177
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178 # If pager is active, color.pagermode overrides color.mode.
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179 if getattr(ui, 'pageractive', False):
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180 mode = ui.config('color', 'pagermode', mode)
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181
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182 realmode = mode
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183 if mode == 'auto':
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184 if pycompat.osname == 'nt':
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185 term = encoding.environ.get('TERM')
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186 # TERM won't be defined in a vanilla cmd.exe environment.
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187
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188 # UNIX-like environments on Windows such as Cygwin and MSYS will
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189 # set TERM. They appear to make a best effort attempt at setting it
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190 # to something appropriate. However, not all environments with TERM
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191 # defined support ANSI. Since "ansi" could result in terminal
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192 # gibberish, we error on the side of selecting "win32". However, if
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193 # w32effects is not defined, we almost certainly don't support
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194 # "win32", so don't even try.
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195 if (term and 'xterm' in term) or not w32effects:
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196 realmode = 'ansi'
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197 else:
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198 realmode = 'win32'
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199 else:
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200 realmode = 'ansi'
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201
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202 def modewarn():
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203 # only warn if color.mode was explicitly set and we're in
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204 # a formatted terminal
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205 if mode == realmode and ui.formatted():
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206 ui.warn(_('warning: failed to set color mode to %s\n') % mode)
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207
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208 if realmode == 'win32':
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209 _terminfo_params.clear()
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210 if not w32effects:
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diff changeset
211 modewarn()
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212 return None
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213 _effects.update(w32effects)
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214 elif realmode == 'ansi':
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215 _terminfo_params.clear()
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216 elif realmode == 'terminfo':
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217 _terminfosetup(ui, mode)
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218 if not _terminfo_params:
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219 ## FIXME Shouldn't we return None in this case too?
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220 modewarn()
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221 realmode = 'ansi'
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222 else:
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223 return None
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224
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225 if always or (auto and formatted):
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226 return realmode
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227 return None
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228
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229 def configstyles(ui):
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230 for status, cfgeffects in ui.configitems('color'):
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231 if '.' not in status or status.startswith(('color.', 'terminfo.')):
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232 continue
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233 cfgeffects = ui.configlist('color', status)
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234 if cfgeffects:
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235 good = []
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236 for e in cfgeffects:
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237 if valideffect(e):
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238 good.append(e)
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239 else:
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240 ui.warn(_("ignoring unknown color/effect %r "
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241 "(configured in color.%s)\n")
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242 % (e, status))
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243 _styles[status] = ' '.join(good)
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244
30969
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245 def valideffect(effect):
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246 'Determine if the effect is valid or not.'
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247 return ((not _terminfo_params and effect in _effects)
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248 or (effect in _terminfo_params
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249 or effect[:-11] in _terminfo_params))
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250
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251 def _effect_str(effect):
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252 '''Helper function for render_effects().'''
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253
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254 bg = False
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255 if effect.endswith('_background'):
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256 bg = True
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257 effect = effect[:-11]
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258 try:
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259 attr, val, termcode = _terminfo_params[effect]
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260 except KeyError:
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261 return ''
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262 if attr:
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263 if termcode:
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264 return termcode
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265 else:
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266 return curses.tigetstr(val)
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267 elif bg:
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268 return curses.tparm(curses.tigetstr('setab'), val)
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269 else:
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270 return curses.tparm(curses.tigetstr('setaf'), val)
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271
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272 def _render_effects(text, effects):
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273 'Wrap text in commands to turn on each effect.'
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274 if not text:
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275 return text
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276 if _terminfo_params:
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277 start = ''.join(_effect_str(effect)
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278 for effect in ['none'] + effects.split())
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279 stop = _effect_str('none')
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280 else:
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281 start = [str(_effects[e]) for e in ['none'] + effects.split()]
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282 start = '\033[' + ';'.join(start) + 'm'
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283 stop = '\033[' + str(_effects['none']) + 'm'
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284 return ''.join([start, text, stop])
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285
31086
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286 def colorlabel(ui, msg, label):
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287 """add color control code according to the mode"""
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288 if ui._colormode == 'debug':
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289 if label and msg:
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290 if msg[-1] == '\n':
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291 msg = "[%s|%s]\n" % (label, msg[:-1])
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292 else:
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293 msg = "[%s|%s]" % (label, msg)
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294 elif ui._colormode is not None:
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295 effects = []
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296 for l in label.split():
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297 s = _styles.get(l, '')
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298 if s:
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299 effects.append(s)
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300 elif valideffect(l):
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diff changeset
301 effects.append(l)
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diff changeset
302 effects = ' '.join(effects)
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diff changeset
303 if effects:
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diff changeset
304 msg = '\n'.join([_render_effects(line, effects)
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diff changeset
305 for line in msg.split('\n')])
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diff changeset
306 return msg
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diff changeset
307
31067
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diff changeset
308 w32effects = None
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diff changeset
309 if pycompat.osname == 'nt':
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diff changeset
310 import ctypes
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diff changeset
311 import re
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312
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diff changeset
313 _kernel32 = ctypes.windll.kernel32
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314
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diff changeset
315 _WORD = ctypes.c_ushort
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316
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diff changeset
317 _INVALID_HANDLE_VALUE = -1
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318
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diff changeset
319 class _COORD(ctypes.Structure):
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320 _fields_ = [('X', ctypes.c_short),
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321 ('Y', ctypes.c_short)]
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322
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323 class _SMALL_RECT(ctypes.Structure):
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diff changeset
324 _fields_ = [('Left', ctypes.c_short),
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diff changeset
325 ('Top', ctypes.c_short),
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diff changeset
326 ('Right', ctypes.c_short),
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diff changeset
327 ('Bottom', ctypes.c_short)]
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diff changeset
328
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diff changeset
329 class _CONSOLE_SCREEN_BUFFER_INFO(ctypes.Structure):
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diff changeset
330 _fields_ = [('dwSize', _COORD),
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diff changeset
331 ('dwCursorPosition', _COORD),
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diff changeset
332 ('wAttributes', _WORD),
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diff changeset
333 ('srWindow', _SMALL_RECT),
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diff changeset
334 ('dwMaximumWindowSize', _COORD)]
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diff changeset
335
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diff changeset
336 _STD_OUTPUT_HANDLE = 0xfffffff5 # (DWORD)-11
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diff changeset
337 _STD_ERROR_HANDLE = 0xfffffff4 # (DWORD)-12
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diff changeset
338
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diff changeset
339 _FOREGROUND_BLUE = 0x0001
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340 _FOREGROUND_GREEN = 0x0002
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341 _FOREGROUND_RED = 0x0004
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342 _FOREGROUND_INTENSITY = 0x0008
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diff changeset
343
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344 _BACKGROUND_BLUE = 0x0010
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345 _BACKGROUND_GREEN = 0x0020
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346 _BACKGROUND_RED = 0x0040
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347 _BACKGROUND_INTENSITY = 0x0080
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348
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349 _COMMON_LVB_REVERSE_VIDEO = 0x4000
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350 _COMMON_LVB_UNDERSCORE = 0x8000
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351
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352 # http://msdn.microsoft.com/en-us/library/ms682088%28VS.85%29.aspx
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353 w32effects = {
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354 'none': -1,
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355 'black': 0,
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356 'red': _FOREGROUND_RED,
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357 'green': _FOREGROUND_GREEN,
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358 'yellow': _FOREGROUND_RED | _FOREGROUND_GREEN,
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359 'blue': _FOREGROUND_BLUE,
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360 'magenta': _FOREGROUND_BLUE | _FOREGROUND_RED,
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361 'cyan': _FOREGROUND_BLUE | _FOREGROUND_GREEN,
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362 'white': _FOREGROUND_RED | _FOREGROUND_GREEN | _FOREGROUND_BLUE,
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363 'bold': _FOREGROUND_INTENSITY,
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364 'black_background': 0x100, # unused value > 0x0f
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365 'red_background': _BACKGROUND_RED,
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366 'green_background': _BACKGROUND_GREEN,
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367 'yellow_background': _BACKGROUND_RED | _BACKGROUND_GREEN,
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368 'blue_background': _BACKGROUND_BLUE,
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369 'purple_background': _BACKGROUND_BLUE | _BACKGROUND_RED,
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370 'cyan_background': _BACKGROUND_BLUE | _BACKGROUND_GREEN,
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371 'white_background': (_BACKGROUND_RED | _BACKGROUND_GREEN |
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372 _BACKGROUND_BLUE),
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373 'bold_background': _BACKGROUND_INTENSITY,
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374 'underline': _COMMON_LVB_UNDERSCORE, # double-byte charsets only
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375 'inverse': _COMMON_LVB_REVERSE_VIDEO, # double-byte charsets only
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376 }
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377
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378 passthrough = set([_FOREGROUND_INTENSITY,
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379 _BACKGROUND_INTENSITY,
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380 _COMMON_LVB_UNDERSCORE,
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381 _COMMON_LVB_REVERSE_VIDEO])
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382
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383 stdout = _kernel32.GetStdHandle(
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384 _STD_OUTPUT_HANDLE) # don't close the handle returned
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385 if stdout is None or stdout == _INVALID_HANDLE_VALUE:
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386 w32effects = None
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387 else:
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388 csbi = _CONSOLE_SCREEN_BUFFER_INFO()
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389 if not _kernel32.GetConsoleScreenBufferInfo(
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390 stdout, ctypes.byref(csbi)):
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391 # stdout may not support GetConsoleScreenBufferInfo()
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392 # when called from subprocess or redirected
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393 w32effects = None
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394 else:
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395 origattr = csbi.wAttributes
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396 ansire = re.compile('\033\[([^m]*)m([^\033]*)(.*)',
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397 re.MULTILINE | re.DOTALL)
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398
31089
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399 def win32print(writefunc, *msgs, **opts):
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diff changeset
400 for text in msgs:
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401 _win32print(text, writefunc, **opts)
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402
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403 def _win32print(text, writefunc, **opts):
31067
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404 label = opts.get('label', '')
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405 attr = origattr
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406
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407 def mapcolor(val, attr):
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408 if val == -1:
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409 return origattr
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410 elif val in passthrough:
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411 return attr | val
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412 elif val > 0x0f:
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413 return (val & 0x70) | (attr & 0x8f)
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414 else:
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415 return (val & 0x07) | (attr & 0xf8)
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416
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417 # determine console attributes based on labels
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418 for l in label.split():
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419 style = _styles.get(l, '')
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420 for effect in style.split():
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diff changeset
421 try:
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422 attr = mapcolor(w32effects[effect], attr)
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423 except KeyError:
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424 # w32effects could not have certain attributes so we skip
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diff changeset
425 # them if not found
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diff changeset
426 pass
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diff changeset
427 # hack to ensure regexp finds data
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428 if not text.startswith('\033['):
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429 text = '\033[m' + text
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diff changeset
430
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431 # Look for ANSI-like codes embedded in text
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432 m = re.match(ansire, text)
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diff changeset
433
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diff changeset
434 try:
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diff changeset
435 while m:
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diff changeset
436 for sattr in m.group(1).split(';'):
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diff changeset
437 if sattr:
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diff changeset
438 attr = mapcolor(int(sattr), attr)
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diff changeset
439 _kernel32.SetConsoleTextAttribute(stdout, attr)
31088
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diff changeset
440 writefunc(m.group(2), **opts)
31067
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diff changeset
441 m = re.match(ansire, m.group(3))
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diff changeset
442 finally:
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443 # Explicitly reset original attributes
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diff changeset
444 _kernel32.SetConsoleTextAttribute(stdout, origattr)