Class: Syntax::Convertors::HTML

Inherits:
Abstract
  • Object
show all
Defined in:
lib/syntax/convertors/html.rb

Overview

A simple class for converting a text into HTML.

Instance Attribute Summary

Attributes inherited from Abstract

#tokenizer

Instance Method Summary collapse

Methods inherited from Abstract

for_syntax, #initialize

Constructor Details

This class inherits a constructor from Syntax::Convertors::Abstract

Instance Method Details

#convert(text, pre = true) ⇒ Object

Converts the given text to HTML, using spans to represent token groups of any type but :normal (which is always unhighlighted). If pre is true, the html is automatically wrapped in pre tags.



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# File 'lib/syntax/convertors/html.rb', line 12

def convert( text, pre=true )
  html = "".dup
  html << "<pre>" if pre
  regions = []
  @tokenizer.tokenize( text ) do |tok|
    value = html_escape(tok)
    case tok.instruction
      when :region_close then
        regions.pop
        html << "</span>"
      when :region_open then
        regions.push tok.group
        html << "<span class=\"#{tok.group}\">#{value}"
      else
        if tok.group == ( regions.last || :normal )
          html << value
        else
          html << "<span class=\"#{tok.group}\">#{value}</span>"
        end
    end
  end
  html << "</span>" while regions.pop
  html << "</pre>" if pre
  html
end