| # -*- 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 Itex2MML library for converting math formulas to MathML. |
| module Itex2MML |
| |
| begin |
| require 'itextomml' |
| |
| # Itex2MML is available if this constant is +true+. |
| AVAILABLE = true |
| rescue LoadError |
| AVAILABLE = false # :nodoc: |
| end |
| |
| def self.call(converter, el, opts) |
| type = el.options[:category] |
| parser = ::Itex2MML::Parser.new |
| result = (type == :block ? parser.block_filter(el.value) : parser.inline_filter(el.value)) |
| |
| attr = el.attr.dup |
| attr.delete('xmlns') |
| attr.delete('display') |
| result.insert("<math".length, converter.html_attributes(attr)) |
| |
| (type == :block ? "#{' '*opts[:indent]}#{result}\n" : result) |
| end |
| |
| end |
| |
| end |
