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Contents
module Polytexnic
module Preprocessor
module Latex
def to_processed_latex
@polytex = polish_tables(process_asides(clean_latex_document))
end
# Returns LaTeX with hashed versions of literal environments.
# Literal environments are hashed and passed through the pipeline
# so that we can process things like refs to hyperrefs using gsubs.
def clean_latex_document
cache_literal(@polytex, :latex)
end
def polish_tables(text)
text.tap do
text.gsub!(/^\s*(\\begin\{table\})/) do
"#{$1}\n\\begin{center}\n\\small\n"
end
text.gsub!(/^\s*(\\end\{table\})/) { "\\end{center}\n#{$1}" }
end
end
# Processes aside environments.
# In order to get nice framed & shaded aside boxes, we need to
# transform the default aside into a new environment.
def process_asides(text)
# Transform asides with headings and labels.
aside_regex = /\\begin{aside}\n\s*
\\heading{(.*?)}\s*
\\label{(.*?)}\n
(.*?)
\\end{aside}/mx
text.tap do
text.gsub!(aside_regex) do
%(\\begin{shaded_aside}{#{$1}}{#{$2}}\n#{$3}\n\\end{shaded_aside})
end
end
end
end
end
end
Version data entries
8 entries across 8 versions & 1 rubygems