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crib/samples/ruby.rb

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#!/usr/bin/env ruby
# Unicode / Emoji / CJK stress-test Ruby file
# Purpose: Test syntax highlighting + width calculation in your editor
# ---------------------------------------------------------------
# Basic output
def greet
puts "Hello, 世界! 👋🌏"
end
# Emoji-heavy strings
emojis = "👋🌏👋🌏👋🌏👋🌏👋🌏👋🌏👋🌏👋🌏👋🌏👋🌏👋🌏👋🌏👋🌏👋🌏👋🌏👋🌏👋🌏👋🌏👋🌏👋🌏👋🌏👋🌏👋🌏👋🌏👋🌏👋🌏👋🌏👋🌏👋🌏👋🌏👋🌏👋🌏👋🌏👋🌏👋🌏👋🌏👋🌏👋🌏👋🌏👋🌏👋🌏👋🌏👋🌏👋🌏👋🌏👋🌏👋🌏👋🌏👋🌏👋🌏👋🌏👋🌏👋🌏👋🌏👋🌏👋🌏👋🌏👋🌏👋🌏👋🌏👋🌏👋🌏👋🌏👋🌏👋🌏👋🌏👋🌏👋🌏👋🌏👋🌏👋🌏👋🌏👋🌏👋🌏👋🌏👋🌏👋🌏👋🌏👋🌏👋🌏👋🌏👋🌏👋🌏👋🌏👋🌏👋🌏👋🌏👋🌏👋🌏👋🌏👋🌏👋🌏👋🌏👋🌏👋🌏👋🌏👋🌏👋🌏👋🌏👋🌏👋🌏👋🌏👋🌏👋🌏👋🌏👋🌏👋🌏👋🌏👋🌏👋🌏👋🌏👋🌏👋🌏👋🌏👋🌏👋🌏👋🌏👋🌏👋🌏👋🌏👋🌏👋🌏👋🌏👋🌏👋🌏👋🌏👋🌏👋🌏👋🌏👋🌏👋🌏👋🌏👋🌏👋🌏👋🌏👋🌏👋🌏👋🌏👋🌏👋🌏👋🌏👋🌏👋🌏👋🌏👋🌏👋🌏👋🌏👋🌏👋🌏👋🌏👋🌏👋🌏👋🌏👋🌏👋🌏👋🌏👋🌏👋🌏👋🌏👋🌏👋🌏👋🌏👋🌏👋🌏👋🌏👋🌏👋🌏👋🌏👋🌏👋🌏👋🌏👋🌏👋🌏👋🌏👋🌏👋🌏👋🌏👋🌏👋🌏👋🌏👋🌏👋🌏👋🌏👋🌏👋🌏👋🌏👋🌏👋🌏👋🌏👋🌏👋🌏👋🌏👋🌏👋🌏👋🌏👋🌏👋🌏👋🌏👋🌏👋🌏👋🌏👋🌏👋🌏👋🌏👋🌏👋🌏👋🌏👋🌏👋🌏👋🌏👋🌏👋🌏👋🌏👋🌏👋🌏👋🌏👋🌏👋🌏👋🌏👋🌏👋🌏👋🌏👋🌏👋🌏👋🌏👋🌏👋🌏👋🌏👋🌏👋🌏👋🌏👋🌏👋🌏👋🌏👋🌏👋🌏👋🌏👋🌏👋🌏👋🌏👋🌏👋🌏👋🌏👋🌏👋🌏👋🌏👋🌏👋🌏👋🌏👋🌏👋🌏"
# Mixed-width CJK blocks
cjk_samples = [
"漢字テスト",
"測試中文字串",
"한국어 테스트",
"ひらがなカタカナ😀混合",
"大量の文字列🚀🚀🚀",
]
# Ruby regex with unicode
unicode_regex = /[一-龯ぁ-んァ-ヶー々〆〤]/
# Unicode identifiers (valid in Ruby)
= 123
π = 3.14159
= -> { "こんにちは" }
# Method using unicode variable names
def math_test
puts "π * 2 = #{π * 2}"
end
# Iterate through CJK samples
cjk_samples.each_with_index do |str, idx|
puts "CJK[#{idx}] => #{str} (len=#{str.length})"
end
# Test emoji width behaviors
puts "Emoji count: #{emojis.length}"
# Multi-line string with unicode
multi = <<~EOF
Emojis inside heredoc: 🎉🔥💀🧡💛💚💙💜🖤🤍🤎
End of block.
EOF
puts multi
# Arrays mixing everything
mixed = [
"🐍 Ruby + Python? sacrilege! 🐍",
"日本語とEnglishと🔧mix",
"Spacing test →→→→→→→",
"Zero-width joiner test: 👨‍👩‍👧‍👦 family emoji",
]
mixed.each { |m| puts m }
# Unicode in comments — highlight me!
# コメント:エディタのハイライトを確認します✨
# Emojis should not break formatting: 🦀🦊🐱‍👤🤖
# Dummy Ruby logic
5.times do |i|
puts "Loop #{i}: 🌟 #{cjk_samples[i % cjk_samples.size]}"
end
# String escape sequences + unicode
escaped = "Line1\nLine2\tTabbed 😀"
puts escaped
# Frozen string literal test
# frozen_string_literal: true
const_str = "定数文字列🔒".freeze
puts const_str
# End marker
puts "--- END OF UNICODE TEST FILE ---"
# Ruby syntax highlighting test
=begin
This is a multi-line comment.
It spans multiple lines.
Good for testing highlighting.
This is a wrapped line test, This is a wrapped line test, This is a wrapped line test, This is a wrapped line test, This is a wrapped line test, This is a wrapped line test, This is a wrapped line test, This is a wrapped line test, This is a wrapped line test, This is a wrapped line test, This is a wrapped line test, This is a wrapped line test, This is a wrapped line test, This is a wrapped line test, This is a wrapped line test, This is a wrapped line test, This is a wrapped line test, This is a wrapped line test, This is a wrapped line test, This is a wrapped line test, This is a wrapped line test, This is a wrapped line test, This is a wrapped line test, This is a wrapped line test, This is a wrapped line test, This is a wrapped line test, This is a wrapped line test, This is a wrapped line test, This is a wrapped line test, This is a wrapped line test, This is a wrapped line test, This is a wrapped line test, This is a wrapped line test, This is a wrapped line test, This is a wrapped line test, This is a wrapped line test, This is a wrapped line test, This is a wrapped line test, This is a wrapped line test, This is a wrapped line test, This is a wrapped line test, This is a wrapped line test, This is a wrapped line test, This is a wrapped line test, This is a wrapped line test, This is a wrapped line test, This is a wrapped line test, This is a wrapped line test, This is a wrapped line test, This is a wrapped line test, This is a wrapped line test, This is a wrapped line test, This is a wrapped line test, This is a wrapped line test,
=end
# Constants
PI = 3.14159
MAX_ITER = 5
# Module
module Utilities
def self.random_greeting
["Hello", "Hi", "Hey", "Hola", "Bonjour", "Merhaba"].sample
end
def self.factorial(n)
return 1 if n <= 1
n * factorial(n - 1)
end
end
# Class
class TestObject
attr_accessor :name, :value
def initialize(name, value)
@name = name
@value = value
end
def display
puts "#{@name}: #{@value}"
end
def double_value
@value * 2
end
end
# Inheritance
class SpecialObject < TestObject
def triple_value
@value * 3
end
end
# Lambda
adder = ->(x, y) { x + y }
# Array and hash
numbers = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10]
hash = { a: 1, b: 2, c: 3 }
# Iteration
numbers.each do |n|
puts "Number: #{n}"
end
# Hash iteration
hash.each do |key, value|
puts "#{key} => #{value}"
end
# Conditional
numbers.each do |n|
if n.even?
puts "#{n} is even"
else
puts "#{n} is odd"
end
end
# Method definition
def greet_person(name)
puts "#{Utilities.random_greeting}, #{name}!"
end
# Calling methods
greet_person("Alice")
greet_person("Bob")
# Loops
i = 0
while i < 5
puts "Loop iteration #{i}"
i += 1
end
for j in 1..3
puts "For loop #{j}"
end
# Begin-rescue-ensure
begin
risky = 10 / 2
puts "Risky operation succeeded: #{risky}"
rescue ZeroDivisionError => e
puts "Caught an error: #{e}"
ensure
puts "This runs no matter what"
end
# Arrays of objects
objs = []
5.times do |k|
objs << TestObject.new("Obj#{k}", k)
end
objs.each(&:display)
# Nested arrays
nested = [[1, 2], [3, 4], [5, 6]]
nested.each do |arr|
arr.each { |x| print "#{x} " }
puts
end
# Case statement
numbers.each do |n|
case n
when 1..3
puts "#{n} is small"
when 4..7
puts "#{n} is medium"
else
puts "#{n} is large"
end
end
# Using factorial
(0..5).each do |n|
puts "Factorial of #{n} is #{Utilities.factorial(n)}"
end
# Special objects
so = SpecialObject.new("Special", 10)
puts "Double: #{so.double_value}, Triple: #{so.triple_value}"
# String interpolation and formatting
puts "PI is approximately #{PI.round(2)}"
# Multi-line strings
multi_line = <<~TEXT
This is a multi-line string.
It spans multiple lines.
Good for testing highlighting.
TEXT
puts multi_line
# Symbols and strings
sym = :my_symbol
str = "my string"
puts "Symbol: #{sym}, String: #{str}"
# Random numbers
rand_nums = Array.new(5) { rand(100) }
puts "Random numbers: #{rand_nums.join(', ')}"
# More loops
rand_nums.each_with_index do |num, idx|
puts "Index #{idx} has number #{num}"
end
# Ternary operator
rand_nums.each do |num|
puts num.even? ? "#{num} is even" : "#{num} is odd"
end
# Block with yield
def wrapper
puts "Before block"
yield if block_given?
puts "After block"
end
wrapper { puts "Inside block" }
# Sorting
sorted = rand_nums.sort
puts "Sorted: #{sorted.join(', ')}"
# Regex
sample_text = "The quick brown fox jumps over the lazy dog"
puts "Match 'fox'?" if sample_text =~ /fox/
# End of test script
puts "Ruby syntax highlighting test complete."