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Code Picture MVP
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require "bundler/inline" | |
gemfile do | |
source "https://rubygems.org" | |
gem "prism" | |
gem "nokogiri" | |
end | |
require "prism" | |
require "nokogiri" | |
file = ARGV[0] | |
abort("Missing file") if file.nil? || !File.exist?(file) | |
result = Prism.lex_file(file) | |
if result.failure? | |
errors = result.errors.map { " - #{_1.message}" } | |
abort("Failed to parse file:\n#{errors.join("\n")}") | |
end | |
# nicer colors than just pure random | |
def rand_color | |
"hsl(#{rand(0..360)},#{rand(70..110)}%,#{rand(40..90)}%)" | |
end | |
random_colors = {} | |
RANDOM_COLORS_THEME = ->(token_type) { random_colors[token_type] ||= rand_color } | |
THEME = RANDOM_COLORS_THEME | |
Pixel = Data.define(:color, :token_type, :token_value) | |
pixels = result.value.filter_map do |(token, _)| | |
next if token.type == :WORDS_SEP | |
next if token.type == :IGNORED_NEWLINE | |
next if token.type == :NEWLINE | |
next if token.type == :EOF | |
next if token.type == :MISSING | |
next if token.type == :NOT_PROVIDED | |
Pixel.new(THEME[token.type], token.type, token.value) | |
end | |
row_size = Math.sqrt(pixels.size).ceil | |
builder = Nokogiri::HTML4::Builder.new do |doc| | |
doc.html do | |
doc.style do | |
doc.text( | |
<<~CSS | |
.pixel { | |
display: table-cell; | |
width: 15px; | |
height: 15px; | |
position: relative; | |
} | |
CSS | |
) | |
doc.text( | |
<<~CSS | |
.pixel:hover::after { | |
display: block; | |
content: attr(data-content); | |
position: absolute; | |
z-index: 100; | |
top: 30px; | |
background: white; | |
color: black; | |
padding: 5px; | |
min-width: 150px; | |
min-height: 30px; | |
border-radius: 5px; | |
box-shadow: 0 0 10px rgba(0,0,0,0.5); | |
} | |
CSS | |
) | |
doc.text(".row { display: table-row; }") | |
end | |
doc.body do | |
pixels.each_slice(row_size).each do |row| | |
doc.div(class: "row") do | |
row.each do |pixel| | |
doc.span( | |
class: "pixel", | |
style: "background-color: #{pixel.color}", | |
"data-content": "Type: #{pixel.token_type}\nValue: #{pixel.token_value.inspect}" | |
) | |
end | |
end | |
end | |
end | |
end | |
end | |
File.write("code-picture.html", builder.to_html) | |
`open code-picture.html` |
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