Class: Simplabs::Highlight::PygmentsWrapper

Inherits:
Object
  • Object
show all
Defined in:
lib/simplabs/highlight/pygments_wrapper.rb

Overview

Wraps the actual pygments syntax highlighter and exposes its functionality to Ruby code.

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(code, language) ⇒ PygmentsWrapper

Initializes a new Simplabs::Highlight::PygmentsWrapper.

Parameters:

  • code (String) —

    the actual code to highlight

  • language (String, Symbol) —

    the language the code to highlight is in



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# File 'lib/simplabs/highlight/pygments_wrapper.rb', line 25

def initialize(code, language)
  @code     = code
  @language = language
end

Instance Attribute Details

#code ⇒ Object (readonly)

The code the wrapper highlights



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# File 'lib/simplabs/highlight/pygments_wrapper.rb', line 12

def code
  @code
end

#language ⇒ Object (readonly)

The language the #code to highlight is in



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# File 'lib/simplabs/highlight/pygments_wrapper.rb', line 16

def language
  @language
end

Instance Method Details

#highlight(options = {}) ⇒ String

Highlights the #code.

Returns:

  • (String) —

    the highlighted code or simply the HTML-escaped code if the language is not supported.



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# File 'lib/simplabs/highlight/pygments_wrapper.rb', line 36

def highlight(options = {})
  command = "pygmentize -f html -O nowrap=true -l #{@language}"
  IO.popen(command, mode = 'r+') do |pygments|
    pygments << @code
    pygments.close_write
    result = pygments.read.chomp
  end
end