64 lines
1.6 KiB
Ruby
64 lines
1.6 KiB
Ruby
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#--
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# Copyright (C) 2006 Andrea Censi <andrea (at) rubyforge.org>
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#
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# This file is part of Maruku.
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#
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# Maruku is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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#
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# Maruku is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with Maruku; if not, write to the Free Software
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# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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#++
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class String
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# These are TeX's special characters
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LATEX_ADD_SLASH = [ ?{, ?}, ?$, ?&, ?#, ?_, ?%]
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# These, we transform to {\tt \char<ascii code>}
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LATEX_TO_CHARCODE = [ ?^, ?~, ?>,?<]
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def escape_to_latex(s)
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s2 = ""
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s.each_byte do |b|
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if LATEX_TO_CHARCODE.include? b
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s2 += "{\\tt \\char#{b}}"
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elsif LATEX_ADD_SLASH.include? b
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s2 << ?\\ << b
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elsif b == ?\\
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# there is no backslash in cmr10 fonts
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s2 += "$\\backslash$"
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else
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s2 << b
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end
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end
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s2
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end
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# escapes special characters
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def to_latex
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s = escape_to_latex(self)
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OtherGoodies.each do |k, v|
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s.gsub!(k, v)
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end
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s
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end
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# other things that are good on the eyes
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OtherGoodies = {
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/(\s)LaTeX/ => '\1\\LaTeX\\xspace ', # XXX not if already \LaTeX
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# 'HTML' => '\\textsc{html}\\xspace ',
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# 'PDF' => '\\textsc{pdf}\\xspace '
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}
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end
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