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Contents
# -*- coding: utf-8 -*-
#
#--
# Copyright (C) 2009-2016 Thomas Leitner <t_leitner@gmx.at>
#
# This file is part of kramdown which is licensed under the MIT.
#++
#
module Kramdown::Converter::MathEngine
# Uses the MathJax javascript library for displaying math.
#
# Note that the javascript library itself is not include or linked, this has to be done
# separately. Only the math content is marked up correctly.
module Mathjax
def self.call(converter, el, opts)
type = el.options[:category]
text = (el.value =~ /<|&/ ? "% <![CDATA[\n#{el.value} %]]>" : el.value)
text.gsub!(/<\/?script>?/, '')
preview = preview_string(converter, el, opts)
attr = {:type => "math/tex#{type == :block ? '; mode=display' : ''}"}
if type == :block
preview << converter.format_as_block_html('script', attr, text, opts[:indent])
else
preview << converter.format_as_span_html('script', attr, text)
end
end
def self.preview_string(converter, el, opts)
preview = converter.options[:math_engine_opts][:preview]
return '' unless preview
preview = (preview == true ? converter.escape_html(el.value) : preview.to_s)
preview_as_code = converter.options[:math_engine_opts][:preview_as_code]
if el.options[:category] == :block
if preview_as_code
converter.format_as_block_html('pre', {'class' => 'MathJax_Preview'},
converter.format_as_span_html('code', {}, preview),
opts[:indent])
else
converter.format_as_block_html('div', {'class' => 'MathJax_Preview'}, preview,
opts[:indent])
end
else
converter.format_as_span_html(preview_as_code ? 'code' : 'span',
{'class' => 'MathJax_Preview'}, preview)
end
end
end
end
Version data entries
64 entries across 61 versions & 16 rubygems