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Diffstat (limited to 'pygments/formatters/irc.py')
| -rw-r--r-- | pygments/formatters/irc.py | 182 |
1 files changed, 182 insertions, 0 deletions
diff --git a/pygments/formatters/irc.py b/pygments/formatters/irc.py new file mode 100644 index 00000000..d1eed0ac --- /dev/null +++ b/pygments/formatters/irc.py @@ -0,0 +1,182 @@ +# -*- coding: utf-8 -*- +""" + pygments.formatters.irc + ~~~~~~~~~~~~~~~~~~~~~~~ + + Formatter for IRC output + + :copyright: Copyright 2006-2015 by the Pygments team, see AUTHORS. + :license: BSD, see LICENSE for details. +""" + +import sys + +from pygments.formatter import Formatter +from pygments.token import Keyword, Name, Comment, String, Error, \ + Number, Operator, Generic, Token, Whitespace +from pygments.util import get_choice_opt + + +__all__ = ['IRCFormatter'] + + +#: Map token types to a tuple of color values for light and dark +#: backgrounds. +IRC_COLORS = { + Token: ('', ''), + + Whitespace: ('lightgray', 'darkgray'), + Comment: ('lightgray', 'darkgray'), + Comment.Preproc: ('teal', 'turquoise'), + Keyword: ('darkblue', 'blue'), + Keyword.Type: ('teal', 'turquoise'), + Operator.Word: ('purple', 'fuchsia'), + Name.Builtin: ('teal', 'turquoise'), + Name.Function: ('darkgreen', 'green'), + Name.Namespace: ('_teal_', '_turquoise_'), + Name.Class: ('_darkgreen_', '_green_'), + Name.Exception: ('teal', 'turquoise'), + Name.Decorator: ('darkgray', 'lightgray'), + Name.Variable: ('darkred', 'red'), + Name.Constant: ('darkred', 'red'), + Name.Attribute: ('teal', 'turquoise'), + Name.Tag: ('blue', 'blue'), + String: ('brown', 'brown'), + Number: ('darkblue', 'blue'), + + Generic.Deleted: ('red', 'red'), + Generic.Inserted: ('darkgreen', 'green'), + Generic.Heading: ('**', '**'), + Generic.Subheading: ('*purple*', '*fuchsia*'), + Generic.Error: ('red', 'red'), + + Error: ('_red_', '_red_'), +} + + +IRC_COLOR_MAP = { + 'white': 0, + 'black': 1, + 'darkblue': 2, + 'green': 3, + 'red': 4, + 'brown': 5, + 'purple': 6, + 'orange': 7, + 'darkgreen': 7, #compat w/ ansi + 'yellow': 8, + 'lightgreen': 9, + 'turquoise': 9, # compat w/ ansi + 'teal': 10, + 'lightblue': 11, + 'darkred': 11, # compat w/ ansi + 'blue': 12, + 'fuchsia': 13, + 'darkgray': 14, + 'lightgray': 15, +} + +def ircformat(color, text): + if len(color) < 1: + return text + add = sub = '' + if '_' in color: # italic + add += '\x1D' + sub = '\x1D' + sub + color = color.strip('_') + if '*' in color: # bold + add += '\x02' + sub = '\x02' + sub + color = color.strip('*') + # underline (\x1F) not supported + # backgrounds (\x03FF,BB) not supported + if len(color) > 0: # actual color - may have issues with ircformat("red", "blah")+"10" type stuff + add += '\x03' + str(IRC_COLOR_MAP[color]).zfill(2) + sub = '\x03' + sub + return add + text + sub + return '<'+add+'>'+text+'</'+sub+'>' + + +class IRCFormatter(Formatter): + r""" + Format tokens with IRC color sequences + + The `get_style_defs()` method doesn't do anything special since there is + no support for common styles. + + Options accepted: + + `bg` + Set to ``"light"`` or ``"dark"`` depending on the terminal's background + (default: ``"light"``). + + `colorscheme` + A dictionary mapping token types to (lightbg, darkbg) color names or + ``None`` (default: ``None`` = use builtin colorscheme). + + `linenos` + Set to ``True`` to have line numbers in the output as well + (default: ``False`` = no line numbers). + """ + name = 'IRC' + aliases = ['irc', 'IRC'] + filenames = [] + + def __init__(self, **options): + Formatter.__init__(self, **options) + self.darkbg = get_choice_opt(options, 'bg', + ['light', 'dark'], 'light') == 'dark' + self.colorscheme = options.get('colorscheme', None) or IRC_COLORS + self.linenos = options.get('linenos', False) + self._lineno = 0 + + def _write_lineno(self, outfile): + self._lineno += 1 + outfile.write("\n%04d: " % self._lineno) + + def _format_unencoded_with_lineno(self, tokensource, outfile): + self._write_lineno(outfile) + + for ttype, value in tokensource: + if value.endswith("\n"): + self._write_lineno(outfile) + value = value[:-1] + color = self.colorscheme.get(ttype) + while color is None: + ttype = ttype[:-1] + color = self.colorscheme.get(ttype) + if color: + color = color[self.darkbg] + spl = value.split('\n') + for line in spl[:-1]: + self._write_lineno(outfile) + if line: + outfile.write(ircformat(color, line[:-1])) + if spl[-1]: + outfile.write(ircformat(color, spl[-1])) + else: + outfile.write(value) + + outfile.write("\n") + + def format_unencoded(self, tokensource, outfile): + if self.linenos: + self._format_unencoded_with_lineno(tokensource, outfile) + return + + for ttype, value in tokensource: + color = self.colorscheme.get(ttype) + while color is None: + ttype = ttype[:-1] + color = self.colorscheme.get(ttype) + if color: + color = color[self.darkbg] + spl = value.split('\n') + for line in spl[:-1]: + if line: + outfile.write(ircformat(color, line)) + outfile.write('\n') + if spl[-1]: + outfile.write(ircformat(color, spl[-1])) + else: + outfile.write(value) |