Implement readWords

Startcode/input.c

@@ -5,8 +5,41 @@
 // 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
+// Read words from file and store in 'words'
-int readWords(FILE *file, char words[][MAX_WORD_LEN], unsigned int maxWordCount)
-{
 
-}
+
+int readWords(FILE *file, char words[][MAX_WORD_LEN],
+              unsigned int maxWordCount)
+{
+    if (file == NULL) {
+        return 0;
+    }
+
+    char line[MAX_LINE_LEN];
+    unsigned int wordCount = 0;
+
+    while (wordCount < maxWordCount &&
+           fgets(line, sizeof(line), file) != NULL) {
+
+        char *word = strtok(line, " ,;\n\t\r");
+
+        while (word != NULL && wordCount < maxWordCount) {
+            strncpy(words[wordCount], word, MAX_WORD_LEN - 1);
+            words[wordCount][MAX_WORD_LEN - 1] = '\0';
+
+            unsigned int i = 0;
+
+            while (words[wordCount][i] != '\0') {
+                words[wordCount][i] =
+                    (char)toupper((unsigned char)words[wordCount][i]);
+                i++;
+            }
+
+            wordCount++;
+
+            word = strtok(NULL, " ,;\n\t\r");
+        }
+           }
+
+    return (int)wordCount;
+}