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Size: 1.79 KB
Versions: 13
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Contents
class CodeArea
class << self
def languages
require 'rouge'
Rouge::Lexer.all.map {|lexer| lexer.tag}.sort
end
def lexers
require 'rouge'
Rouge::Lexer.all.sort_by(&:title)
end
end
include Glimmer::LibUI::CustomControl
REGEX_COLOR_HEX6 = /^#([0-9a-f]{2})([0-9a-f]{2})([0-9a-f]{2})$/
option :language, default: 'ruby'
option :theme, default: 'glimmer'
option :code
body {
area {
rectangle(0, 0, 8000, 8000) {
fill :white
}
text {
default_font family: OS.mac? ? 'Consolas' : 'Courier', size: 13, weight: :medium, italic: :normal, stretch: :normal
syntax_highlighting(code).each do |token|
style_data = Rouge::Theme.find(theme).new.style_for(token[:token_type])
string(token[:token_text]) {
color style_data[:fg] || :black
background style_data[:bg] || :white
}
end
}
}
}
def lexer
require 'rouge'
require 'glimmer-dsl-libui/ext/rouge/theme/glimmer'
# TODO Try to use Rouge::Lexer.find_fancy('guess', code) in the future to guess the language or otherwise detect it from file extension
@lexer ||= Rouge::Lexer.find_fancy(language)
@lexer ||= Rouge::Lexer.find_fancy('ruby') # default to Ruby if no lexer is found
end
def syntax_highlighting(text)
return [] if text.to_s.strip.empty?
@syntax_highlighting ||= {}
unless @syntax_highlighting.keys.include?(text)
lex = lexer.lex(text).to_a
text_size = 0
@syntax_highlighting[text] = lex.map do |pair|
{token_type: pair.first, token_text: pair.last}
end.each do |hash|
hash[:token_index] = text_size
text_size += hash[:token_text].size
end
end
@syntax_highlighting[text]
end
end
Version data entries
13 entries across 13 versions & 1 rubygems