String comparison

# title: String comparison
# source: https://rosettacode.org/wiki/String_comparison
# category: Rosetta Code
# difficulty: Intro
# summary: Compare sample string pairs lexicographically and report the sign of each comparison.
# tags: popular, strings, basics, comparison
# vibe: 0.2

def compare_strings(left, right)
  if left < right
    -1
  elsif left > right
    1
  else
    0
  end
end

def run
  [
    { left: "alpha", right: "beta", result: compare_strings("alpha", "beta") },
    { left: "gamma", right: "gamma", result: compare_strings("gamma", "gamma") },
    { left: "zeta", right: "epsilon", result: compare_strings("zeta", "epsilon") }
  ]
end