wrap

• Usage:

  wrap(wid,sep,s)

• Inputs:
  • wid, an integer
  • sep, a string
  • s, a string
• Outputs:
  • a string obtained by wrapping the string s, in case it is wider than the number wid, so that it occupies multiple lines, separated by lines filled with the single character in the string sep, if provided

i1 : wrap(10,"abcdefghijklmnopqrstuvwxyz")

o1 = abcdefghij
     klmnopqrst
     uvwxyz

i2 : wrap(10,"-","abcdefghijklmnopqrstuvwxyz")

o2 = abcdefghij
     ----------
     klmnopqrst
     ----------
     uvwxyz