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transEnigma.c
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transEnigma.c
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#include <stdio.h>
/*This is a program to translate human-readable text into something the Enigma program can read and vice versa. Created by Bailie Livingston.*/
#define FILENAME filename
#define MAXLENGTH 10000
#define toUppercase(c) if (c >= 'a' && c <= 'z') \
{ \
c+= ('A' - 'a'); \
}
int main(int argc, char *argv[]){ //main() takes two argments: the number of arguments and a pointer to an array of char strings. This allows for multiple command-line arguments.
//ints
int i, l, linePlace, fLPlace;
int tempFileLines = 0;
int debug = 0;
//chars
char c;
char fileline[MAXLENGTH];
char line[MAXLENGTH];
char *enigmaMode = "e";
char *humanMode = "h";
//FILEs
FILE *mainFile;
FILE *tempFile;
if (argc != 3)
{
printf("Usage: transEnigma.c filename mode\n");
printf("Mode is \"h\" for human-readable text and \"e\" for Enigma-readable text.\n");
}
else
{
mainFile = fopen(argv[1], "r"); //Opens the file that needs translating
tempFile = fopen("temp", "w");
if (debug == 1)
printf("Filename: %s\nMode: %s\n", argv[1], argv[2]);
if (*argv[2] == *enigmaMode)
{
for (i = 1; (fgets(fileline, MAXLENGTH, mainFile)) != NULL; i++){
linePlace = 0; //Start over for the place on the line to be written to the file
if (debug == 1)
{
printf("Fileline: %s\n", fileline);
}
for (fLPlace = 0; (c = fileline[fLPlace]) != '\0'; fLPlace++){
//ToUppercase
if (c >= 'a' && c <= 'z')
{
c+= ('A' - 'a');
line[linePlace++] = c;
}
else if (c >= 'A' && c <= 'Z')
{
line[linePlace++] = c;
if (debug == 1)
{
printf("%c\n", line[linePlace]);
}
}
/*Numbers are written out. Punctuation is assigned a value arbitrarily. Here is a list:
And symbol: written out
Asterisk: written out as "star"
At symbol: written out
Backslash: LQ
Close Parenthesis: QX
Colon: QZ
Comma: YY
Dash: YZ
Double quote: XZ
Equals: written out
Exclaimation point: ZY
Open Parenthesis: XQ
Percent symbol: PQ
Period: ZZ
Plus: written out
Pound sign: QP
Semicolon: ZQ
Single quote: ZX
Slash: QL
Space: XX
Question mark: QQ
*/
else if ((c < 65) || ((c >= 91) && (c <= 96))) //If it's not an alphabetic character,
{
switch(c){
//In alphebetical order: first the ones with letter combos, then the written-out ones.
case '\\': //I had to escape the backslash. It only looks for and replaces one.
line[linePlace++] = 'L';
line[linePlace++] = 'Q';
break;
case ')':
line[linePlace++] = 'Q';
line[linePlace++] = 'X';
break;
case ':':
line[linePlace++] = 'Q';
line[linePlace++] = 'Z';
break;
case ',':
line[linePlace++] = 'Y';
line[linePlace++] = 'Y';
break;
case '-':
line[linePlace++] = 'Y';
line[linePlace++] = 'Z';
break;
case '"':
line[linePlace++] = 'X';
line[linePlace++] = 'Z';
break;
case '!':
line[linePlace++] = 'Z';
line[linePlace++] = 'Y';
break;
case '(':
line[linePlace++] = 'X';
line[linePlace++] = 'Q';
break;
case '%':
line[linePlace++] = 'P';
line[linePlace++] = 'Q';
break;
case '.':
line[linePlace++] = 'Z';
line[linePlace++] = 'Z';
break;
case '#':
line[linePlace++] = 'Q';
line[linePlace++] = 'P';
break;
case ';':
line[linePlace++] = 'Z';
line[linePlace++] = 'Q';
break;
case '\'': //Escaped the single quote.
line[linePlace++] = 'Z';
line[linePlace++] = 'X';
break;
case '/':
line[linePlace++] = 'Q';
line[linePlace++] = 'L';
break;
case 32: //Space
line[linePlace++] = 'X';
line[linePlace++] = 'X';
break;
case '?':
line[linePlace++] = 'Q';
line[linePlace++] = 'Q';
break;
case '1':
line[linePlace++] = 'O';
line[linePlace++] = 'N';
line[linePlace++] = 'E';
break;
case '2':
line[linePlace++] = 'T';
line[linePlace++] = 'W';
line[linePlace++] = 'O';
break;
case '3':
line[linePlace++] = 'T';
line[linePlace++] = 'H';
line[linePlace++] = 'R';
line[linePlace++] = 'E';
line[linePlace++] = 'E';
break;
case '4':
line[linePlace++] = 'F';
line[linePlace++] = 'O';
line[linePlace++] = 'U';
line[linePlace++] = 'R';
break;
case '5':
line[linePlace++] = 'F';
line[linePlace++] = 'I';
line[linePlace++] = 'V';
line[linePlace++] = 'E';
break;
case '6':
line[linePlace++] = 'S';
line[linePlace++] = 'I';
line[linePlace++] = 'X';
break;
case '7':
line[linePlace++] = 'S';
line[linePlace++] = 'E';
line[linePlace++] = 'V';
line[linePlace++] = 'E';
line[linePlace++] = 'N';
break;
case '8':
line[linePlace++] = 'E';
line[linePlace++] = 'I';
line[linePlace++] = 'G';
line[linePlace++] = 'T';
break;
case '9':
line[linePlace++] = 'N';
line[linePlace++] = 'I';
line[linePlace++] = 'N';
line[linePlace++] = 'E';
break;
case '0':
line[linePlace++] = 'Z';
line[linePlace++] = 'E';
line[linePlace++] = 'R';
line[linePlace++] = 'O';
break;
case '&':
line[linePlace++] = 'A';
line[linePlace++] = 'N';
line[linePlace++] = 'D';
break;
case '@':
line[linePlace++] = 'A';
line[linePlace++] = 'T';
break;
case '=':
line[linePlace++] = 'E';
line[linePlace++] = 'Q';
line[linePlace++] = 'U';
line[linePlace++] = 'A';
line[linePlace++] = 'L';
line[linePlace++] = 'S';
break;
case '+':
line[linePlace++] = 'P';
line[linePlace++] = 'L';
line[linePlace++] = 'U';
line[linePlace++] = 'S';
break;
case '*':
line[linePlace++] = 'S';
line[linePlace++] = 'T';
line[linePlace++] = 'A';
line[linePlace++] = 'R';
break;
case 10: //Leaves the newline
line[linePlace++] = 10;
break;
case 13: //Carriage Return - windows uses that instead of newlinea
line[linePlace++] = 10;
break;
default:
printf("Sorry, error: %c is not permitted. Please remove it from your file and rerun the program.\n", c);
return -1;
}
}
else
{
printf("%c is not able to be translated. Please remove it from your file and try again.\n", c);
}
}
line[linePlace] = '\0';
if (debug == 1)
{
printf("Line: %s\n", line);
}
fprintf(tempFile, "%s", line);
}
fclose(tempFile);
fclose(mainFile);
}
else if (*argv[2] == *humanMode)
{
for (i = 1; (fgets(fileline, MAXLENGTH, mainFile)) != NULL; i++){
linePlace = 0; //Start over for the place on the line to be written to the file
if (debug == 1)
{
printf("Fileline: %s\n", fileline);
}
for (fLPlace = 0; (c = fileline[fLPlace]) != '\0'; fLPlace++){
toUppercase(c); //Should already be uppercase, so this is redundant and unnecessary, but whatever
//Since everything is uppercase anyway, the program will just go through and find patterns.
if (debug == 1)
printf("Place on fileline: %i\nCharacter: %c\n", fLPlace, fileline[fLPlace]);
switch (c){
case 'L':
if (fileline[fLPlace+1] == 'Q')
{
line[linePlace++] = '\\'; //Escaped the backslash
fLPlace++;
}
else
{
line[linePlace++] = c;
if (debug == 1)
{
printf("It was a letter.\n");
}
}
break;
case 'P':
if (fileline[fLPlace+1] == 'Q')
{
line[linePlace++] = '%';
fLPlace++;
}
else
{
line[linePlace++] = c;
if (debug == 1)
{
printf("It was a letter.\n");
}
}
break;
case 'Q':
if (fileline[fLPlace+1] == 'L')
{
line[linePlace++] = '/';
fLPlace++;
}
else if (fileline[fLPlace+1] == 'P')
{
line[linePlace++] = '#';
fLPlace++;
}
else if (fileline[fLPlace+1] == 'Q')
{
line[linePlace++] = '?';
fLPlace++;
}
else if (fileline[fLPlace+1] == 'X')
{
line[linePlace++] = ')';
fLPlace++;
}
else if (fileline[fLPlace+1] == 'Z')
{
line[linePlace++] = ':';
fLPlace++;
}
else
{
line[linePlace++] = c;
if (debug == 1)
{
printf("It was a letter.\n");
}
}
break;
case 'X':
if (fileline[fLPlace+1] == 'Q')
{
line[linePlace++] = '(';
fLPlace++;
}
else if (fileline[fLPlace+1] == 'X')
{
line[linePlace++] = ' '; //Space
fLPlace++;
}
else if (fileline[fLPlace+1] == 'Z')
{
line[linePlace++] = '"';
fLPlace++;
}
else
{
line[linePlace++] = c;
if (debug == 1)
{
printf("It was a letter.\n");
}
}
break;
case 'Y':
if (fileline[fLPlace+1] == 'Y')
{
line[linePlace++] = ',';
fLPlace++;
}
else if (fileline[fLPlace+1] == 'Z')
{
line[linePlace++] = '-';
fLPlace++;
}
else
{
line[linePlace++] = c;
if (debug == 1)
{
printf("It was a letter.\n");
}
}
break;
case 'Z':
if (fileline[fLPlace+1] == 'Q')
{
line[linePlace++] = ';';
fLPlace++;
}
else if (fileline[fLPlace+1] == 'X')
{
line[linePlace++] = '\''; //Escaped single quote
fLPlace++;
}
else if (fileline[fLPlace+1] == 'Y')
{
line[linePlace++] = '!';
fLPlace++;
}
else if (fileline[fLPlace+1] == 'Z')
{
line[linePlace++] = '.';
fLPlace++;
}
else
{
line[linePlace++] = c;
if (debug == 1)
{
printf("It was a letter.\n");
}
}
break;
default:
line[linePlace++] = c;
break;
}
}
line[linePlace] = '\0';
if (debug == 1)
{
printf("Line: %s\n", line);
}
fprintf(tempFile, "%s", line);
tempFileLines++;
}
fclose(tempFile);
fclose(mainFile);
}
else printf("The mode you specified was not either 'e' or 'h'. Please make sure you were using lowercase letters and that you specified one of those two modes.\n");
mainFile = fopen(argv[1], "w");
tempFile = fopen("temp", "r");
if (debug == 1)
{
printf("Number of lines in temp file: %i\n", tempFileLines);
printf("Number of lines in original file: %i\n", i);
}
for (l = 1; fgets(line, MAXLENGTH, tempFile) != NULL && (l < i || l == i); l++){
fprintf(mainFile, "%s", line);
if (debug == 1)
{
printf("Line %i of temp file: %s\n", l, line);
printf("l == %i\n", l);
}
}
if (debug == 1)
{
printf("Line %i of temp file: %s\n", l, line);
printf("l == %i\n", l);
}
printf("File was translated successfully.\n");
return 1;
}
}