Implementierung der Wortsuche und Eingabeverarbeitung

Startcode/input.c

@@ -6,7 +6,47 @@
 // 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
-int readWords(FILE *file, char words[][MAX_WORD_LEN], unsigned int maxWordCount)
+int readWords(FILE *file, char words[][MAX_WORD_LEN],
+              unsigned int maxWordCount)
 {
+    unsigned int wordCount = 0;
+    unsigned int charIndex = 0;
+    int c;
 
+    if (file == NULL) {
+        return 0;
+    }
+
+    while ((c = fgetc(file)) != EOF) {
+
+        if (c == ',' || c == ';' || c == ' ' ||
+            c == '\n' || c == '\t' || c == '\r') {
+
+            if (charIndex > 0) {
+                words[wordCount][charIndex] = '\0';
+
+                wordCount++;
+                charIndex = 0;
+
+                if (wordCount >= maxWordCount) {
+                    return (int)wordCount;
+                }
+            }
+            }
+        else {
+            if (wordCount < maxWordCount &&
+                charIndex < MAX_WORD_LEN - 1) {
+
+                words[wordCount][charIndex] = (char)c;
+                charIndex++;
+                }
+        }
+    }
+
+    if (charIndex > 0 && wordCount < maxWordCount) {
+        words[wordCount][charIndex] = '\0';
+        wordCount++;
+    }
+
+    return (int)wordCount;
 }