{ Rouge }

An elegant, extendable code highlighter written in pure Ruby.

Available on GitHub

bottle := method(i,
  if(i==0, return "no more bottles of beer")
  if(i==1, return "1 bottle of beer")
  return i asString .. " bottles of beer"
)

for(i, 99, 1, -1,
  write(bottle(i), " on the wall, ", bottle(i), ",\n")
  write("take one down, pass it around,\n")
  write(bottle(i - 1), " on the wall.\n\n")
)