ThirdParty/Pygments/pygments/formatters/terminal256.py

Wed, 20 Oct 2010 08:39:56 +0200

author
Detlev Offenbach <detlev@die-offenbachs.de>
date
Wed, 20 Oct 2010 08:39:56 +0200
changeset 684
2f29a0b6e1c7
parent 0
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child 1705
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permissions
-rw-r--r--

Updated Pygments to version 1.3.1.

0
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1 # -*- coding: utf-8 -*-
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2 """
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3 pygments.formatters.terminal256
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4 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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5
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6 Formatter for 256-color terminal output with ANSI sequences.
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7
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8 RGB-to-XTERM color conversion routines adapted from xterm256-conv
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9 tool (http://frexx.de/xterm-256-notes/data/xterm256-conv2.tar.bz2)
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10 by Wolfgang Frisch.
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11
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12 Formatter version 1.
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13
684
2f29a0b6e1c7 Updated Pygments to version 1.3.1.
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14 :copyright: Copyright 2006-2010 by the Pygments team, see AUTHORS.
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15 :license: BSD, see LICENSE for details.
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16 """
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17
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18 # TODO:
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19 # - Options to map style's bold/underline/italic/border attributes
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20 # to some ANSI attrbutes (something like 'italic=underline')
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21 # - An option to output "style RGB to xterm RGB/index" conversion table
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22 # - An option to indicate that we are running in "reverse background"
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23 # xterm. This means that default colors are white-on-black, not
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24 # black-on-while, so colors like "white background" need to be converted
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25 # to "white background, black foreground", etc...
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26
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27 from pygments.formatter import Formatter
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28
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29
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30 __all__ = ['Terminal256Formatter']
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31
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32
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33 class EscapeSequence:
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34 def __init__(self, fg=None, bg=None, bold=False, underline=False):
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35 self.fg = fg
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36 self.bg = bg
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37 self.bold = bold
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38 self.underline = underline
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39
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40 def escape(self, attrs):
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41 if len(attrs):
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42 return "\x1b[" + ";".join(attrs) + "m"
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43 return ""
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44
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45 def color_string(self):
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46 attrs = []
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47 if self.fg is not None:
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48 attrs.extend(("38", "5", "%i" % self.fg))
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49 if self.bg is not None:
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50 attrs.extend(("48", "5", "%i" % self.bg))
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51 if self.bold:
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52 attrs.append("01")
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53 if self.underline:
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54 attrs.append("04")
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55 return self.escape(attrs)
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56
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57 def reset_string(self):
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58 attrs = []
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59 if self.fg is not None:
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60 attrs.append("39")
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61 if self.bg is not None:
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62 attrs.append("49")
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63 if self.bold or self.underline:
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64 attrs.append("00")
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65 return self.escape(attrs)
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66
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67 class Terminal256Formatter(Formatter):
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68 r"""
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69 Format tokens with ANSI color sequences, for output in a 256-color
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70 terminal or console. Like in `TerminalFormatter` color sequences
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71 are terminated at newlines, so that paging the output works correctly.
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72
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73 The formatter takes colors from a style defined by the `style` option
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74 and converts them to nearest ANSI 256-color escape sequences. Bold and
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75 underline attributes from the style are preserved (and displayed).
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76
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77 *New in Pygments 0.9.*
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78
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79 Options accepted:
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80
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81 `style`
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82 The style to use, can be a string or a Style subclass (default:
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83 ``'default'``).
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84 """
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85 name = 'Terminal256'
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86 aliases = ['terminal256', 'console256', '256']
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87 filenames = []
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88
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89 def __init__(self, **options):
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90 Formatter.__init__(self, **options)
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91
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92 self.xterm_colors = []
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93 self.best_match = {}
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94 self.style_string = {}
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95
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96 self.usebold = 'nobold' not in options
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97 self.useunderline = 'nounderline' not in options
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98
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99 self._build_color_table() # build an RGB-to-256 color conversion table
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100 self._setup_styles() # convert selected style's colors to term. colors
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101
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102 def _build_color_table(self):
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103 # colors 0..15: 16 basic colors
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104
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105 self.xterm_colors.append((0x00, 0x00, 0x00)) # 0
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106 self.xterm_colors.append((0xcd, 0x00, 0x00)) # 1
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107 self.xterm_colors.append((0x00, 0xcd, 0x00)) # 2
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108 self.xterm_colors.append((0xcd, 0xcd, 0x00)) # 3
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109 self.xterm_colors.append((0x00, 0x00, 0xee)) # 4
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110 self.xterm_colors.append((0xcd, 0x00, 0xcd)) # 5
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111 self.xterm_colors.append((0x00, 0xcd, 0xcd)) # 6
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112 self.xterm_colors.append((0xe5, 0xe5, 0xe5)) # 7
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113 self.xterm_colors.append((0x7f, 0x7f, 0x7f)) # 8
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114 self.xterm_colors.append((0xff, 0x00, 0x00)) # 9
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115 self.xterm_colors.append((0x00, 0xff, 0x00)) # 10
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116 self.xterm_colors.append((0xff, 0xff, 0x00)) # 11
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117 self.xterm_colors.append((0x5c, 0x5c, 0xff)) # 12
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118 self.xterm_colors.append((0xff, 0x00, 0xff)) # 13
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119 self.xterm_colors.append((0x00, 0xff, 0xff)) # 14
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120 self.xterm_colors.append((0xff, 0xff, 0xff)) # 15
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121
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122 # colors 16..232: the 6x6x6 color cube
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123
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124 valuerange = (0x00, 0x5f, 0x87, 0xaf, 0xd7, 0xff)
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125
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126 for i in range(217):
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127 r = valuerange[(i // 36) % 6]
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128 g = valuerange[(i // 6) % 6]
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Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
129 b = valuerange[i % 6]
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
130 self.xterm_colors.append((r, g, b))
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
131
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
132 # colors 233..253: grayscale
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
133
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
134 for i in range(1, 22):
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
135 v = 8 + i * 10
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
136 self.xterm_colors.append((v, v, v))
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
137
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
138 def _closest_color(self, r, g, b):
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
139 distance = 257*257*3 # "infinity" (>distance from #000000 to #ffffff)
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
140 match = 0
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
141
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
142 for i in range(0, 254):
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
143 values = self.xterm_colors[i]
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
144
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
145 rd = r - values[0]
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
146 gd = g - values[1]
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
147 bd = b - values[2]
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
148 d = rd*rd + gd*gd + bd*bd
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
149
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
150 if d < distance:
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
151 match = i
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
152 distance = d
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
153 return match
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
154
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
155 def _color_index(self, color):
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
156 index = self.best_match.get(color, None)
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
157 if index is None:
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
158 try:
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
159 rgb = int(str(color), 16)
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
160 except ValueError:
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
161 rgb = 0
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
162
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
163 r = (rgb >> 16) & 0xff
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
164 g = (rgb >> 8) & 0xff
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
165 b = rgb & 0xff
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
166 index = self._closest_color(r, g, b)
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
167 self.best_match[color] = index
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
168 return index
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
169
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
170 def _setup_styles(self):
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
171 for ttype, ndef in self.style:
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
172 escape = EscapeSequence()
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
173 if ndef['color']:
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
174 escape.fg = self._color_index(ndef['color'])
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
175 if ndef['bgcolor']:
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
176 escape.bg = self._color_index(ndef['bgcolor'])
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
177 if self.usebold and ndef['bold']:
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
178 escape.bold = True
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
179 if self.useunderline and ndef['underline']:
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
180 escape.underline = True
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
181 self.style_string[str(ttype)] = (escape.color_string(),
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
182 escape.reset_string())
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
183
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
184 def format(self, tokensource, outfile):
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
185 # hack: if the output is a terminal and has an encoding set,
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
186 # use that to avoid unicode encode problems
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
187 if not self.encoding and hasattr(outfile, "encoding") and \
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
188 hasattr(outfile, "isatty") and outfile.isatty():
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
189 self.encoding = outfile.encoding
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
190 return Formatter.format(self, tokensource, outfile)
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
191
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
192 def format_unencoded(self, tokensource, outfile):
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
193 for ttype, value in tokensource:
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
194 not_found = True
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
195 while ttype and not_found:
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
196 try:
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
197 #outfile.write( "<" + str(ttype) + ">" )
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
198 on, off = self.style_string[str(ttype)]
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
199
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
200 # Like TerminalFormatter, add "reset colors" escape sequence
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
201 # on newline.
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
202 spl = value.split('\n')
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
203 for line in spl[:-1]:
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
204 if line:
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
205 outfile.write(on + line + off)
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
206 outfile.write('\n')
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
207 if spl[-1]:
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
208 outfile.write(on + spl[-1] + off)
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
209
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
210 not_found = False
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
211 #outfile.write( '#' + str(ttype) + '#' )
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
212
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
213 except KeyError:
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
214 #ottype = ttype
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
215 ttype = ttype[:-1]
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
216 #outfile.write( '!' + str(ottype) + '->' + str(ttype) + '!' )
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
217
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
218 if not_found:
de9c2efb9d02 Started porting eric4 to Python3
Detlev Offenbach <detlev@die-offenbachs.de>
parents:
diff changeset
219 outfile.write(value)

eric ide

mercurial