65 lines
1.3 KiB
Plaintext
65 lines
1.3 KiB
Plaintext
func index a$[] c$ .
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for ind = 1 to len a$[]
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if a$[ind] = c$ : return ind
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.
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return 0
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.
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left$ = "HXUCZVAMDSLKPEFJRIGTWOBNYQ"
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right$ = "PTLNBQDEOYSFAVZKGJRIHWXUMC"
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#
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func$ chao txt$ mode .
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left$[] = strchars left$
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right$[] = strchars right$
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len tmp$[] 26
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for c$ in strchars txt$
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if mode = 1
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ind = index right$[] c$
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if ind = 0 : return ""
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r$ &= left$[ind]
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else
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ind = index left$[] c$
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if ind = 0
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print c$
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return ""
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.
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r$ &= right$[ind]
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.
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# permute left
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for j = ind to 26
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tmp$[j - ind + 1] = left$[j]
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.
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for j = 1 to ind - 1
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tmp$[26 - ind + j + 1] = left$[j]
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.
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h$ = tmp$[2]
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for j = 3 to 14
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tmp$[j - 1] = tmp$[j]
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.
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tmp$[14] = h$
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swap tmp$[] left$[]
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#
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# permute right
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for j = ind to 26
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tmp$[j - ind + 1] = right$[j]
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.
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for j = 1 to ind - 1
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tmp$[26 - ind + j + 1] = right$[j]
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.
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h$ = tmp$[1]
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for j = 2 to 26
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tmp$[j - 1] = tmp$[j]
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.
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tmp$[26] = h$
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h$ = tmp$[3]
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for j = 4 to 14
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tmp$[j - 1] = tmp$[j]
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.
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tmp$[14] = h$
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swap tmp$[] right$[]
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.
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return r$
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.
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h$ = chao "WELLDONEISBETTERTHANWELLSAID" 1
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print h$
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print chao h$ 2
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