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Contents
module Rouge
module Lexers
class TeX < RegexLexer
desc "The TeX typesetting system"
tag 'tex'
aliases 'TeX', 'LaTeX', 'latex'
filenames '*.tex', '*.aux', '*.toc'
mimetypes 'text/x-tex', 'text/x-latex'
def self.analyze_text(text)
return 1 if text =~ /\A\s*\\documentclass/
return 1 if text =~ /\A\s*\\input/
return 1 if text =~ /\A\s*\\documentstyle/
return 1 if text =~ /\A\s*\\relax/
end
command = /\\([a-z]+|\s+|.)/i
state :general do
rule /%.*$/, 'Comment'
rule /[{}&_^]/, 'Punctuation'
end
state :root do
rule /\\\[/, 'Punctuation', :displaymath
rule /\\\(/, 'Punctuation', :inlinemath
rule /\$\$/, 'Punctuation', :displaymath
rule /\$/, 'Punctuation', :inlinemath
rule /\\(begin|end)\{.*?\}/, 'Name.Tag'
rule /(\\verb)\b(\S)(.*?)(\2)/ do |m|
group 'Name.Builtin'
group 'Keyword.Pseudo'
group 'Literal.String.Other'
group 'Keyword.Pseudo'
end
rule command, 'Keyword', :command
mixin :general
rule /[^\\$%&_^{}]+/, 'Text'
end
state :math do
rule command, 'Name.Variable'
mixin :general
rule /[0-9]+/, 'Literal.Number'
rule /[-=!+*\/()\[\]]/, 'Operator'
rule /[^=!+*\/()\[\]\\$%&_^{}0-9-]+/, 'Name.Builtin'
end
state :inlinemath do
rule /\\\)/, 'Punctuation', :pop!
rule /\$/, 'Punctuation', :pop!
mixin :math
end
state :displaymath do
rule /\\\]/, 'Punctuation', :pop!
rule /\$\$/, 'Punctuation', :pop!
rule /\$/, 'Name.Builtin'
mixin :math
end
state :command do
rule /\[.*?\]/, 'Name.Attribute'
rule /\*/, 'Keyword'
rule(//) { pop! }
end
end
end
end
Version data entries
27 entries across 27 versions & 1 rubygems