142 lines
3.1 KiB
Ruby
142 lines
3.1 KiB
Ruby
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# -*- coding: utf-8 -*- #
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# frozen_string_literal: true
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module Rouge
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module Lexers
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class HTML < RegexLexer
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title "HTML"
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desc "HTML, the markup language of the web"
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tag 'html'
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filenames '*.htm', '*.html', '*.xhtml'
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mimetypes 'text/html', 'application/xhtml+xml'
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def self.detect?(text)
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return true if text.doctype?(/\bhtml\b/i)
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return false if text =~ /\A<\?xml\b/
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return true if text =~ /<\s*html\b/
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end
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start do
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@javascript = Javascript.new(options)
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@css = CSS.new(options)
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end
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state :root do
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rule %r/[^<&]+/m, Text
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rule %r/&\S*?;/, Name::Entity
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rule %r/<!DOCTYPE .*?>/im, Comment::Preproc
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rule %r/<!\[CDATA\[.*?\]\]>/m, Comment::Preproc
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rule %r/<!--/, Comment, :comment
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rule %r/<\?.*?\?>/m, Comment::Preproc # php? really?
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rule %r/<\s*script\s*/m do
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token Name::Tag
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@javascript.reset!
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push :script_content
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push :tag
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end
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rule %r/<\s*style\s*/m do
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token Name::Tag
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@css.reset!
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@lang = @css
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push :style_content
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push :tag
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end
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rule %r(</), Name::Tag, :tag_end
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rule %r/</, Name::Tag, :tag_start
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rule %r(<\s*[a-zA-Z0-9:-]+), Name::Tag, :tag # opening tags
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rule %r(<\s*/\s*[a-zA-Z0-9:-]+\s*>), Name::Tag # closing tags
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end
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state :tag_end do
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mixin :tag_end_end
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rule %r/[a-zA-Z0-9:-]+/ do
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token Name::Tag
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goto :tag_end_end
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end
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end
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state :tag_end_end do
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rule %r/\s+/, Text
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rule %r/>/, Name::Tag, :pop!
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end
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state :tag_start do
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rule %r/\s+/, Text
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rule %r/[a-zA-Z0-9:-]+/ do
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token Name::Tag
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goto :tag
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end
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rule(//) { goto :tag }
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end
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state :comment do
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rule %r/[^-]+/, Comment
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rule %r/-->/, Comment, :pop!
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rule %r/-/, Comment
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end
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state :tag do
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rule %r/\s+/m, Text
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rule %r/[a-zA-Z0-9_:\[\]()*.-]+\s*=\s*/m, Name::Attribute, :attr
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rule %r/[a-zA-Z0-9_:#*-]+/, Name::Attribute
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rule %r(/?\s*>)m, Name::Tag, :pop!
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end
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state :attr do
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# TODO: are backslash escapes valid here?
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rule %r/"/ do
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token Str
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goto :dq
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end
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rule %r/'/ do
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token Str
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goto :sq
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end
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rule %r/[^\s>]+/, Str, :pop!
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end
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state :dq do
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rule %r/"/, Str, :pop!
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rule %r/[^"]+/, Str
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end
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state :sq do
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rule %r/'/, Str, :pop!
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rule %r/[^']+/, Str
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end
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state :script_content do
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rule %r([^<]+) do
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delegate @javascript
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end
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rule %r(<\s*/\s*script\s*>)m, Name::Tag, :pop!
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rule %r(<) do
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delegate @javascript
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end
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end
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state :style_content do
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rule %r/[^<]+/ do
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delegate @lang
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end
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rule %r(<\s*/\s*style\s*>)m, Name::Tag, :pop!
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rule %r/</ do
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delegate @lang
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end
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end
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end
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end
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end
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