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+#!/usr/bin/env julia
+
+#=
+
+AUTHOR: Robert DiCicco
+
+DATE: 2022-11-07
+
+Challenge 190 Capital Detection ( Julia )
+
+
+
+You are given a string with alphabetic characters only: A..Z and a..z.
+
+Write a script to find out if the usage of Capital is appropriate
+
+if it satisfies at least one of the following rules:
+
+
+
+1) Only first letter is capital and all others are small.
+
+2) Every letter is small.
+
+3) Every letter is capital.
+
+
+
+SAMPLE OUTPUT
+
+Input: $s = "Perl"
+
+Output: 1
+
+
+
+Input: $s = "TPF"
+
+Output: 3
+
+
+
+Input: $s = "PyThon"
+
+Output: 0
+
+
+
+Input: $s = "raku"
+
+Output: 2
+
+=#
+
+
+
+using Printf
+
+words = ["Perl", "TPF", "PyThon", "raku"]
+
+
+
+for s in words
+
+  @printf("Input: \$s = \"%s\"\n",s)
+
+  if occursin(r"^[A-Z][a-z]*$", s )
+
+    @printf("Output: 1\n")
+
+  elseif occursin(r"^[a-z]*$", s)
+
+    @printf("Output: 2\n")
+
+  elseif occursin(r"^[A-Z]*$", s)
+
+    @printf("Output: 3\n")
+
+  else
+
+    @printf("Output: 0\n")
+
+  end
+
+  println(" ")
+
+end