created basic functionality

Startcode/input.c

@@ -1,12 +1,55 @@
 #include "input.h"
 #include <string.h>
 #include <ctype.h>
+#include <stdio.h>
 
 // TODO:
 // eine Funktion implementieren, die ein einzelnes Wort aus einer Textdatei (words.txt) einliest und als C-String zurückgibt.
 
 // Read words from file and store in 'words' array
+static int createSingleWords(char text[MAX_LINE_LEN], char words[][MAX_WORD_LEN], unsigned int maxWordCount);
+
 int readWords(FILE *file, char words[][MAX_WORD_LEN], unsigned int maxWordCount)
 {
+    int wordCount = 0;
+    int i = 0;
+    char lineRead[MAX_LINE_LEN];
 
+    while(fgets(lineRead, MAX_LINE_LEN, file) != NULL && i < maxWordCount)
+    {
+        wordCount += createSingleWords(lineRead, words, maxWordCount);
+        i++;
+    }
+
+    return wordCount;
+}
+
+static int createSingleWords(char text[MAX_LINE_LEN], char words[][MAX_WORD_LEN], unsigned int maxWordCount)
+{
+    char *teiler = " ;,.\n";
+    char *token;
+    
+    int i = 0;
+
+    token = strtok(text, teiler);
+
+    while(token != NULL && i < maxWordCount)
+    {
+        strncpy(words[i], token, MAX_WORD_LEN - 1);
+        //kleinbuchstaben --> GROßBUCHSTABEN
+        int length = strlen(words[i]);
+        for(int j = 0; j < length; i++)
+        {
+            if(islower(words[i][j]))
+            {
+                words[i][j] = toupper(words[i][j]);
+            }
+        }
+        words[i][MAX_WORD_LEN - 1] = '\0';
+
+        token = strtok(NULL, teiler);
+        i++;
+    }
+
+    return i;
 }