Class Project status

The actual submission source files for my C Programming class final
project

Author: EndilWayfare

sudoku.c

@@ -0,0 +1,120 @@
+/******************************************************************************
+ * Program: sudoku.c
+ *
+ * Purpose: To implement a sudoku application, with assistant functions to help
+ *          user solve sudoku puzzles
+ *
+ * Developer: Philip Ormand
+ *
+ * Date: 5/13/16
+ *
+ ****************************************************************************/
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "sudoku_board.h"
+#include "sudoku_commands.h"
+#include "sudoku_test_digits.h"
+#include "sudoku_utility.h"
+
+/*
+ * ======= SUDOKU SEMANTICS =======   (AKA, my chosen definitions for terms in variable names, etc.)
+ * 'board': the sudoku puzzle space. The actual matrix that makes up a given puzzle or solution.
+ * 'square': individual space for a digit on a sudoku board. A sudoku board is 9 squares by 9 squares.
+ * 'row' / 'column': self-explanitory. A horizontal or vertical row of squares on the sudoku board.
+ * 'block' : the 9 3x3 blocks of squares that must each contain the digits 1-9 on the sudoku board.
+ * 
+ * Which block is which?
+ *   +---+---+---+
+ *   | 1 | 2 | 3 |
+ *   +---+---+---+
+ *   | 4 | 5 | 6 |
+ *   +---+---+---+
+ *   | 7 | 8 | 9 |
+ *   +---+---+---+
+ */
+
+int main(int argc, char* argv[])
+{
+     bool running = true;
+     struct SudokuBoard board = { 0 };
+     struct SudokuCommandInput commandInput = { 0 };
+     const struct SudokuCommand *command = NULL;
+     SudokuCommandResult status = SUDOKU_COMMAND_SUCCESS;
+
+     initializeSudokuBoard(&board);
+     initializeString(&commandInput.string);
+
+     // if one argument was provided, go ahead and load sudoku board from textfile
+     if (argc > 1)
+     {
+          // if filename provided by argument cannot be found/read, loadSudokuBoard will
+          // print an error statement, and execution will continue with a blank board
+          loadSudokuBoard(argv[1], &board);
+     }
+
+     puts("========== Sudoku Game ==========");
+     puts(showAllCommandsPrompt);
+     putchar('\n');
+     printSudokuBoard(&board);
+
+     while (running)
+     {          
+          // put extra space between previous output and command prompt
+          putchar('\n');
+
+          command = getCommand(&commandInput);
+
+          status = command->commandFunction(&board, &commandInput);
+
+          if (status == SUDOKU_COMMAND_USAGE)
+          {
+               printf("Usage: '%s'\n", command->usagePrompt);
+          }
+          else if (status == SUDOKU_COMMAND_EXIT)
+          {
+               running = false;
+          }
+     }
+
+     freeHistory(&board.history);
+
+     return 0;
+}
+
+
+/*
+int main(int argc, char **argv)
+{
+     char *fileName = "sudoku_text_file.txt";
+     FILE *sudokuTextFile;
+     struct SudokuBoard board;
+
+     if (argc == 2)
+     {
+          // if an argument was provided
+          fileName = argv[1];
+     }
+
+     initializeSudokuBoard(&board);
+
+     if ( (sudokuTextFile = fopen(fileName, "r")) == NULL )
+     {
+          terminate("ERROR: couldn't open sudoku file");
+     }
+
+     if ( !readSudokuBoard(sudokuTextFile, &board) )
+     {
+          exit(EXIT_FAILURE); // error message printed by readSudokuBoard
+     }
+
+     printSudokuBoard(&board);
+     putchar('\n');
+
+     puts("Evaluating solution:");
+     evaluateDigitsPresent(&board);
+
+     exit(EXIT_SUCCESS);
+}
+*/