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September Morn Update

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This commit is contained in:
Ingy döt Net 2019-09-12 10:33:56 -07:00
parent 4e2d22a71d
commit aac6731f2c
6856 changed files with 141342 additions and 21127 deletions
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28
Task/Caesar-cipher/OCaml/caesar-cipher-1.ocaml
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@ -5,31 +5,6 @@ let isupper c =
c >= 'A' && c <= 'Z'
let rot x str =
let upchars = "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
and lowchars = "abcdefghijklmnopqrstuvwxyz" in
let rec decal x =
if x < 0 then decal (x + 26) else x
in
let x = (decal x) mod 26 in
let decal_up = x - (int_of_char 'A')
and decal_low = x - (int_of_char 'a') in
let len = String.length str in
let res = String.create len in
for i = 0 to pred len do
let c = str.[i] in
if islower c then
let j = ((int_of_char c) + decal_low) mod 26 in
res.[i] <- lowchars.[j]
else if isupper c then
let j = ((int_of_char c) + decal_up) mod 26 in
res.[i] <- upchars.[j]
else
res.[i] <- c
done;
(res)
(* or in OCaml 4.00+:
let rot x =
let upchars = "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
and lowchars = "abcdefghijklmnopqrstuvwxyz" in
let rec decal x =
@ -47,5 +22,4 @@ let rot x =
upchars.[j]
else
c
)
*)
) str