--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/eric6/ThirdParty/Pygments/pygments/formatters/terminal256.py Sun Apr 14 15:09:21 2019 +0200
@@ -0,0 +1,309 @@
+# -*- coding: utf-8 -*-
+"""
+ pygments.formatters.terminal256
+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+ Formatter for 256-color terminal output with ANSI sequences.
+
+ RGB-to-XTERM color conversion routines adapted from xterm256-conv
+ tool (http://frexx.de/xterm-256-notes/data/xterm256-conv2.tar.bz2)
+ by Wolfgang Frisch.
+
+ Formatter version 1.
+
+ :copyright: Copyright 2006-2017 by the Pygments team, see AUTHORS.
+ :license: BSD, see LICENSE for details.
+"""
+
+# TODO:
+# - Options to map style's bold/underline/italic/border attributes
+# to some ANSI attrbutes (something like 'italic=underline')
+# - An option to output "style RGB to xterm RGB/index" conversion table
+# - An option to indicate that we are running in "reverse background"
+# xterm. This means that default colors are white-on-black, not
+# black-on-while, so colors like "white background" need to be converted
+# to "white background, black foreground", etc...
+
+import sys
+
+from pygments.formatter import Formatter
+from pygments.console import codes
+from pygments.style import ansicolors
+
+
+__all__ = ['Terminal256Formatter', 'TerminalTrueColorFormatter']
+
+
+class EscapeSequence:
+ def __init__(self, fg=None, bg=None, bold=False, underline=False):
+ self.fg = fg
+ self.bg = bg
+ self.bold = bold
+ self.underline = underline
+
+ def escape(self, attrs):
+ if len(attrs):
+ return "\x1b[" + ";".join(attrs) + "m"
+ return ""
+
+ def color_string(self):
+ attrs = []
+ if self.fg is not None:
+ if self.fg in ansicolors:
+ esc = codes[self.fg[5:]]
+ if ';01m' in esc:
+ self.bold = True
+ # extract fg color code.
+ attrs.append(esc[2:4])
+ else:
+ attrs.extend(("38", "5", "%i" % self.fg))
+ if self.bg is not None:
+ if self.bg in ansicolors:
+ esc = codes[self.bg[5:]]
+ # extract fg color code, add 10 for bg.
+ attrs.append(str(int(esc[2:4])+10))
+ else:
+ attrs.extend(("48", "5", "%i" % self.bg))
+ if self.bold:
+ attrs.append("01")
+ if self.underline:
+ attrs.append("04")
+ return self.escape(attrs)
+
+ def true_color_string(self):
+ attrs = []
+ if self.fg:
+ attrs.extend(("38", "2", str(self.fg[0]), str(self.fg[1]), str(self.fg[2])))
+ if self.bg:
+ attrs.extend(("48", "2", str(self.bg[0]), str(self.bg[1]), str(self.bg[2])))
+ if self.bold:
+ attrs.append("01")
+ if self.underline:
+ attrs.append("04")
+ return self.escape(attrs)
+
+ def reset_string(self):
+ attrs = []
+ if self.fg is not None:
+ attrs.append("39")
+ if self.bg is not None:
+ attrs.append("49")
+ if self.bold or self.underline:
+ attrs.append("00")
+ return self.escape(attrs)
+
+
+class Terminal256Formatter(Formatter):
+ """
+ Format tokens with ANSI color sequences, for output in a 256-color
+ terminal or console. Like in `TerminalFormatter` color sequences
+ are terminated at newlines, so that paging the output works correctly.
+
+ The formatter takes colors from a style defined by the `style` option
+ and converts them to nearest ANSI 256-color escape sequences. Bold and
+ underline attributes from the style are preserved (and displayed).
+
+ .. versionadded:: 0.9
+
+ .. versionchanged:: 2.2
+ If the used style defines foreground colors in the form ``#ansi*``, then
+ `Terminal256Formatter` will map these to non extended foreground color.
+ See :ref:`AnsiTerminalStyle` for more information.
+
+ Options accepted:
+
+ `style`
+ The style to use, can be a string or a Style subclass (default:
+ ``'default'``).
+ """
+ name = 'Terminal256'
+ aliases = ['terminal256', 'console256', '256']
+ filenames = []
+
+ def __init__(self, **options):
+ Formatter.__init__(self, **options)
+
+ self.xterm_colors = []
+ self.best_match = {}
+ self.style_string = {}
+
+ self.usebold = 'nobold' not in options
+ self.useunderline = 'nounderline' not in options
+
+ self._build_color_table() # build an RGB-to-256 color conversion table
+ self._setup_styles() # convert selected style's colors to term. colors
+
+ def _build_color_table(self):
+ # colors 0..15: 16 basic colors
+
+ self.xterm_colors.append((0x00, 0x00, 0x00)) # 0
+ self.xterm_colors.append((0xcd, 0x00, 0x00)) # 1
+ self.xterm_colors.append((0x00, 0xcd, 0x00)) # 2
+ self.xterm_colors.append((0xcd, 0xcd, 0x00)) # 3
+ self.xterm_colors.append((0x00, 0x00, 0xee)) # 4
+ self.xterm_colors.append((0xcd, 0x00, 0xcd)) # 5
+ self.xterm_colors.append((0x00, 0xcd, 0xcd)) # 6
+ self.xterm_colors.append((0xe5, 0xe5, 0xe5)) # 7
+ self.xterm_colors.append((0x7f, 0x7f, 0x7f)) # 8
+ self.xterm_colors.append((0xff, 0x00, 0x00)) # 9
+ self.xterm_colors.append((0x00, 0xff, 0x00)) # 10
+ self.xterm_colors.append((0xff, 0xff, 0x00)) # 11
+ self.xterm_colors.append((0x5c, 0x5c, 0xff)) # 12
+ self.xterm_colors.append((0xff, 0x00, 0xff)) # 13
+ self.xterm_colors.append((0x00, 0xff, 0xff)) # 14
+ self.xterm_colors.append((0xff, 0xff, 0xff)) # 15
+
+ # colors 16..232: the 6x6x6 color cube
+
+ valuerange = (0x00, 0x5f, 0x87, 0xaf, 0xd7, 0xff)
+
+ for i in range(217):
+ r = valuerange[(i // 36) % 6]
+ g = valuerange[(i // 6) % 6]
+ b = valuerange[i % 6]
+ self.xterm_colors.append((r, g, b))
+
+ # colors 233..253: grayscale
+
+ for i in range(1, 22):
+ v = 8 + i * 10
+ self.xterm_colors.append((v, v, v))
+
+ def _closest_color(self, r, g, b):
+ distance = 257*257*3 # "infinity" (>distance from #000000 to #ffffff)
+ match = 0
+
+ for i in range(0, 254):
+ values = self.xterm_colors[i]
+
+ rd = r - values[0]
+ gd = g - values[1]
+ bd = b - values[2]
+ d = rd*rd + gd*gd + bd*bd
+
+ if d < distance:
+ match = i
+ distance = d
+ return match
+
+ def _color_index(self, color):
+ index = self.best_match.get(color, None)
+ if color in ansicolors:
+ # strip the `#ansi` part and look up code
+ index = color
+ self.best_match[color] = index
+ if index is None:
+ try:
+ rgb = int(str(color), 16)
+ except ValueError:
+ rgb = 0
+
+ r = (rgb >> 16) & 0xff
+ g = (rgb >> 8) & 0xff
+ b = rgb & 0xff
+ index = self._closest_color(r, g, b)
+ self.best_match[color] = index
+ return index
+
+ def _setup_styles(self):
+ for ttype, ndef in self.style:
+ escape = EscapeSequence()
+ # get foreground from ansicolor if set
+ if ndef['ansicolor']:
+ escape.fg = self._color_index(ndef['ansicolor'])
+ elif ndef['color']:
+ escape.fg = self._color_index(ndef['color'])
+ if ndef['bgansicolor']:
+ escape.bg = self._color_index(ndef['bgansicolor'])
+ elif ndef['bgcolor']:
+ escape.bg = self._color_index(ndef['bgcolor'])
+ if self.usebold and ndef['bold']:
+ escape.bold = True
+ if self.useunderline and ndef['underline']:
+ escape.underline = True
+ self.style_string[str(ttype)] = (escape.color_string(),
+ escape.reset_string())
+
+ def format(self, tokensource, outfile):
+ # hack: if the output is a terminal and has an encoding set,
+ # use that to avoid unicode encode problems
+ if not self.encoding and hasattr(outfile, "encoding") and \
+ hasattr(outfile, "isatty") and outfile.isatty() and \
+ sys.version_info < (3,):
+ self.encoding = outfile.encoding
+ return Formatter.format(self, tokensource, outfile)
+
+ def format_unencoded(self, tokensource, outfile):
+ for ttype, value in tokensource:
+ not_found = True
+ while ttype and not_found:
+ try:
+ # outfile.write( "<" + str(ttype) + ">" )
+ on, off = self.style_string[str(ttype)]
+
+ # Like TerminalFormatter, add "reset colors" escape sequence
+ # on newline.
+ spl = value.split('\n')
+ for line in spl[:-1]:
+ if line:
+ outfile.write(on + line + off)
+ outfile.write('\n')
+ if spl[-1]:
+ outfile.write(on + spl[-1] + off)
+
+ not_found = False
+ # outfile.write( '#' + str(ttype) + '#' )
+
+ except KeyError:
+ # ottype = ttype
+ ttype = ttype[:-1]
+ # outfile.write( '!' + str(ottype) + '->' + str(ttype) + '!' )
+
+ if not_found:
+ outfile.write(value)
+
+
+class TerminalTrueColorFormatter(Terminal256Formatter):
+ r"""
+ Format tokens with ANSI color sequences, for output in a true-color
+ terminal or console. Like in `TerminalFormatter` color sequences
+ are terminated at newlines, so that paging the output works correctly.
+
+ .. versionadded:: 2.1
+
+ Options accepted:
+
+ `style`
+ The style to use, can be a string or a Style subclass (default:
+ ``'default'``).
+ """
+ name = 'TerminalTrueColor'
+ aliases = ['terminal16m', 'console16m', '16m']
+ filenames = []
+
+ def _build_color_table(self):
+ pass
+
+ def _color_tuple(self, color):
+ try:
+ rgb = int(str(color), 16)
+ except ValueError:
+ return None
+ r = (rgb >> 16) & 0xff
+ g = (rgb >> 8) & 0xff
+ b = rgb & 0xff
+ return (r, g, b)
+
+ def _setup_styles(self):
+ for ttype, ndef in self.style:
+ escape = EscapeSequence()
+ if ndef['color']:
+ escape.fg = self._color_tuple(ndef['color'])
+ if ndef['bgcolor']:
+ escape.bg = self._color_tuple(ndef['bgcolor'])
+ if self.usebold and ndef['bold']:
+ escape.bold = True
+ if self.useunderline and ndef['underline']:
+ escape.underline = True
+ self.style_string[str(ttype)] = (escape.true_color_string(),
+ escape.reset_string())
