aparler/RosettaCodeData
1
0
Fork 0
Code Issues 12 Pull requests 3 Projects Releases Packages Wiki Activity Actions

Just another update

Browse source
This commit is contained in:
Ingy döt Net 2015-02-20 00:35:01 -05:00
parent a25938f123
commit 00a190b0a6
6591 changed files with 94363 additions and 23227 deletions
Download patch file Download diff file Expand all files Collapse all files

8
Task/Vigen-re-cipher/D/vigen-re-cipher-1.d
View file

@ -1,21 +1,21 @@
import std.stdio, std.string;
string encrypt(in string txt, in string key) pure
string encrypt(in string txt, in string key) pure @safe
in {
assert(key.removechars("^A-Z") == key);
} body {
string res;
foreach (immutable i, immutable c; toUpper(txt).removechars("^A-Z"))
foreach (immutable i, immutable c; txt.toUpper.removechars("^A-Z"))
res ~= (c + key[i % $] - 2 * 'A') % 26 + 'A';
return res;
}
string decrypt(in string txt, in string key) pure
string decrypt(in string txt, in string key) pure @safe
in {
assert(key.removechars("^A-Z") == key);
} body {
string res;
foreach (immutable i, immutable c; toUpper(txt).removechars("^A-Z"))
foreach (immutable i, immutable c; txt.toUpper.removechars("^A-Z"))
res ~= (c - key[i % $] + 26) % 26 + 'A';
return res;
}

11
Task/Vigen-re-cipher/D/vigen-re-cipher-2.d
View file

@ -1,19 +1,20 @@
import std.stdio, std.range, std.ascii, std.string, std.algorithm,
std.conv;
enum mod = (in int m, in int n) pure nothrow => ((m % n) + n) % n;
enum mod = (in int m, in int n) pure nothrow @safe @nogc =>
((m % n) + n) % n;
enum _s2v = (in string s) pure /*nothrow*/ =>
enum _s2v = (in string s) pure /*nothrow*/ @safe =>
s.toUpper.removechars("^A-Z").map!q{ a - 'A' };
string _v2s(R)(R v) pure /*nothrow*/ {
string _v2s(R)(R v) pure /*nothrow*/ @safe {
return v.map!(x => uppercase[x.mod(26)]).text;
}
enum encrypt = (in string txt, in string key) pure /*nothrow*/ =>
enum encrypt = (in string txt, in string key) pure /*nothrow*/ @safe =>
txt._s2v.zip(key._s2v.cycle).map!q{ a[0] + a[1] }._v2s;
enum decrypt = (in string txt, in string key) pure /*nothrow*/ =>
enum decrypt = (in string txt, in string key) pure /*nothrow*/ @safe =>
txt._s2v.zip(key._s2v.cycle).map!q{ a[0] - a[1] }._v2s;
void main() {