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#include "ptoc.h"
const array<1,36,char> letters = "ABCDEFGHIJKLMNOPQRSTUVWXYZ1234567890";
varying_string<30> name;
varying_string<5> number;
void alphanum();
static string z;
static byte p;
static void replace(char what,char whatwith)
{;
p=pos(what,z); if (p>0) z[p]=whatwith;
}
void alphanum()
{
byte fv;
;
z="";
for( fv=1; fv <= length(name); fv ++)
if (set::of(range('A','Z'), eos).has(name[fv]))
z=z+'7'+name[fv]; else
z=z+upcase(name[fv]);
replace(' ','1');
replace('.','2');
replace('-','3');
replace('\'','4');
replace('"','5');
replace('!','6');
replace(',','9');
replace('?','0');
for( fv=1; fv <= length(number); fv ++)
number[fv]=upcase(number[fv]);
name=z+'8'+number;
}
void scramble()
{
byte fv,what;
;
for( fv=1; fv <= length(name); fv ++)
{;
what=pos(name[fv],letters);
what += 177;
what += (fv+1)*3;
name[fv]=letters[(what % 36)+1-1];
}
}
void checks()
{
byte fv,total;
;
total=177;
for( fv=1; fv <= length(name); fv ++)
total += ord(name[fv]);
name=string('T')+name+letters[total % 36-1];
}
void negate()
{
byte fv;
;
name[1]='N';
for( fv=2; fv <= length(name); fv ++)
name[fv]=letters[37-pos(name[fv],letters)-1];
}
int main(int argc, const char* argv[])
{pio_initialize(argc, argv);
;
output << "Registrant's name?"; input >> name >> NL;
output << "And number (eg, A1)?"; input >> number >> NL;
alphanum();
output << "Name = " << name << NL;
scramble();
output << "Scrambled = " << name << NL;
checks();
output << "With checks = " << name << NL;
negate();
output << "Or, negated, = " << name << NL;
return EXIT_SUCCESS;
}
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