2 pygments.formatters.terminal256
3 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
5 Formatter for 256-color terminal output with ANSI sequences.
7 RGB-to-XTERM color conversion routines adapted from xterm256-conv
8 tool (http://frexx.de/xterm-256-notes/data/xterm256-conv2.tar.bz2)
13 :copyright: Copyright 2006-2022 by the Pygments team, see AUTHORS.
14 :license: BSD, see LICENSE for details.
18 # - Options to map style's bold/underline/italic/border attributes
19 # to some ANSI attrbutes (something like 'italic=underline')
20 # - An option to output "style RGB to xterm RGB/index" conversion table
21 # - An option to indicate that we are running in "reverse background"
22 # xterm. This means that default colors are white-on-black, not
23 # black-on-while, so colors like "white background" need to be converted
24 # to "white background, black foreground", etc...
26 from pip._vendor.pygments.formatter import Formatter
27 from pip._vendor.pygments.console import codes
28 from pip._vendor.pygments.style import ansicolors
31 __all__ = ['Terminal256Formatter', 'TerminalTrueColorFormatter']
35 def __init__(self, fg=None, bg=None, bold=False, underline=False, italic=False):
39 self.underline = underline
42 def escape(self, attrs):
44 return "\x1b[" + ";".join(attrs) + "m"
47 def color_string(self):
49 if self.fg is not None:
50 if self.fg in ansicolors:
51 esc = codes[self.fg.replace('ansi','')]
54 # extract fg color code.
55 attrs.append(esc[2:4])
57 attrs.extend(("38", "5", "%i" % self.fg))
58 if self.bg is not None:
59 if self.bg in ansicolors:
60 esc = codes[self.bg.replace('ansi','')]
61 # extract fg color code, add 10 for bg.
62 attrs.append(str(int(esc[2:4])+10))
64 attrs.extend(("48", "5", "%i" % self.bg))
71 return self.escape(attrs)
73 def true_color_string(self):
76 attrs.extend(("38", "2", str(self.fg[0]), str(self.fg[1]), str(self.fg[2])))
78 attrs.extend(("48", "2", str(self.bg[0]), str(self.bg[1]), str(self.bg[2])))
85 return self.escape(attrs)
87 def reset_string(self):
89 if self.fg is not None:
91 if self.bg is not None:
93 if self.bold or self.underline or self.italic:
95 return self.escape(attrs)
98 class Terminal256Formatter(Formatter):
100 Format tokens with ANSI color sequences, for output in a 256-color
101 terminal or console. Like in `TerminalFormatter` color sequences
102 are terminated at newlines, so that paging the output works correctly.
104 The formatter takes colors from a style defined by the `style` option
105 and converts them to nearest ANSI 256-color escape sequences. Bold and
106 underline attributes from the style are preserved (and displayed).
108 .. versionadded:: 0.9
110 .. versionchanged:: 2.2
111 If the used style defines foreground colors in the form ``#ansi*``, then
112 `Terminal256Formatter` will map these to non extended foreground color.
113 See :ref:`AnsiTerminalStyle` for more information.
115 .. versionchanged:: 2.4
116 The ANSI color names have been updated with names that are easier to
117 understand and align with colornames of other projects and terminals.
118 See :ref:`this table <new-ansi-color-names>` for more information.
124 The style to use, can be a string or a Style subclass (default:
128 Set to ``True`` to have line numbers on the terminal output as well
129 (default: ``False`` = no line numbers).
132 aliases = ['terminal256', 'console256', '256']
135 def __init__(self, **options):
136 Formatter.__init__(self, **options)
138 self.xterm_colors = []
140 self.style_string = {}
142 self.usebold = 'nobold' not in options
143 self.useunderline = 'nounderline' not in options
144 self.useitalic = 'noitalic' not in options
146 self._build_color_table() # build an RGB-to-256 color conversion table
147 self._setup_styles() # convert selected style's colors to term. colors
149 self.linenos = options.get('linenos', False)
152 def _build_color_table(self):
153 # colors 0..15: 16 basic colors
155 self.xterm_colors.append((0x00, 0x00, 0x00)) # 0
156 self.xterm_colors.append((0xcd, 0x00, 0x00)) # 1
157 self.xterm_colors.append((0x00, 0xcd, 0x00)) # 2
158 self.xterm_colors.append((0xcd, 0xcd, 0x00)) # 3
159 self.xterm_colors.append((0x00, 0x00, 0xee)) # 4
160 self.xterm_colors.append((0xcd, 0x00, 0xcd)) # 5
161 self.xterm_colors.append((0x00, 0xcd, 0xcd)) # 6
162 self.xterm_colors.append((0xe5, 0xe5, 0xe5)) # 7
163 self.xterm_colors.append((0x7f, 0x7f, 0x7f)) # 8
164 self.xterm_colors.append((0xff, 0x00, 0x00)) # 9
165 self.xterm_colors.append((0x00, 0xff, 0x00)) # 10
166 self.xterm_colors.append((0xff, 0xff, 0x00)) # 11
167 self.xterm_colors.append((0x5c, 0x5c, 0xff)) # 12
168 self.xterm_colors.append((0xff, 0x00, 0xff)) # 13
169 self.xterm_colors.append((0x00, 0xff, 0xff)) # 14
170 self.xterm_colors.append((0xff, 0xff, 0xff)) # 15
172 # colors 16..232: the 6x6x6 color cube
174 valuerange = (0x00, 0x5f, 0x87, 0xaf, 0xd7, 0xff)
177 r = valuerange[(i // 36) % 6]
178 g = valuerange[(i // 6) % 6]
179 b = valuerange[i % 6]
180 self.xterm_colors.append((r, g, b))
182 # colors 233..253: grayscale
184 for i in range(1, 22):
186 self.xterm_colors.append((v, v, v))
188 def _closest_color(self, r, g, b):
189 distance = 257*257*3 # "infinity" (>distance from #000000 to #ffffff)
192 for i in range(0, 254):
193 values = self.xterm_colors[i]
198 d = rd*rd + gd*gd + bd*bd
205 def _color_index(self, color):
206 index = self.best_match.get(color, None)
207 if color in ansicolors:
208 # strip the `ansi/#ansi` part and look up code
210 self.best_match[color] = index
213 rgb = int(str(color), 16)
217 r = (rgb >> 16) & 0xff
218 g = (rgb >> 8) & 0xff
220 index = self._closest_color(r, g, b)
221 self.best_match[color] = index
224 def _setup_styles(self):
225 for ttype, ndef in self.style:
226 escape = EscapeSequence()
227 # get foreground from ansicolor if set
228 if ndef['ansicolor']:
229 escape.fg = self._color_index(ndef['ansicolor'])
231 escape.fg = self._color_index(ndef['color'])
232 if ndef['bgansicolor']:
233 escape.bg = self._color_index(ndef['bgansicolor'])
234 elif ndef['bgcolor']:
235 escape.bg = self._color_index(ndef['bgcolor'])
236 if self.usebold and ndef['bold']:
238 if self.useunderline and ndef['underline']:
239 escape.underline = True
240 if self.useitalic and ndef['italic']:
242 self.style_string[str(ttype)] = (escape.color_string(),
243 escape.reset_string())
245 def _write_lineno(self, outfile):
247 outfile.write("%s%04d: " % (self._lineno != 1 and '\n' or '', self._lineno))
249 def format(self, tokensource, outfile):
250 return Formatter.format(self, tokensource, outfile)
252 def format_unencoded(self, tokensource, outfile):
254 self._write_lineno(outfile)
256 for ttype, value in tokensource:
258 while ttype and not_found:
260 # outfile.write( "<" + str(ttype) + ">" )
261 on, off = self.style_string[str(ttype)]
263 # Like TerminalFormatter, add "reset colors" escape sequence
265 spl = value.split('\n')
266 for line in spl[:-1]:
268 outfile.write(on + line + off)
270 self._write_lineno(outfile)
275 outfile.write(on + spl[-1] + off)
278 # outfile.write( '#' + str(ttype) + '#' )
283 # outfile.write( '!' + str(ottype) + '->' + str(ttype) + '!' )
293 class TerminalTrueColorFormatter(Terminal256Formatter):
295 Format tokens with ANSI color sequences, for output in a true-color
296 terminal or console. Like in `TerminalFormatter` color sequences
297 are terminated at newlines, so that paging the output works correctly.
299 .. versionadded:: 2.1
304 The style to use, can be a string or a Style subclass (default:
307 name = 'TerminalTrueColor'
308 aliases = ['terminal16m', 'console16m', '16m']
311 def _build_color_table(self):
314 def _color_tuple(self, color):
316 rgb = int(str(color), 16)
319 r = (rgb >> 16) & 0xff
320 g = (rgb >> 8) & 0xff
324 def _setup_styles(self):
325 for ttype, ndef in self.style:
326 escape = EscapeSequence()
328 escape.fg = self._color_tuple(ndef['color'])
330 escape.bg = self._color_tuple(ndef['bgcolor'])
331 if self.usebold and ndef['bold']:
333 if self.useunderline and ndef['underline']:
334 escape.underline = True
335 if self.useitalic and ndef['italic']:
337 self.style_string[str(ttype)] = (escape.true_color_string(),
338 escape.reset_string())