Page 175 - ARM 64 Bit Assembly Language
P. 175
162 Chapter 6
75 /**********************************************************/
76 /* wl_increment adds one to the count of the given word. */
77 /* If the word is not in the list, then it is added with */
78 /* a count of one. */
79 void wl_increment(wordlist *list, char *word)
80 {
81 wordlistnode *newword;
82 wordlistnode *wlst = wln_lookup(list->head,word);
83 if((wlst == NULL)||(strcmp(wlst->word, word) != 0))
84 {
85 list->nwords++;
86 newword = (wordlistnode*)malloc(sizeof(wordlistnode));
87 if(newword == NULL)
88 {
89 printf("Unable to allocate wordlistnode\n");
90 exit(1);
91 }
92 newword->word = strdup(word);
93 newword->count = 1;
94 if(wlst == NULL)
95 {
96 newword->next = list->head;
97 list->head = newword;
98 }
99 else
100 {
101 newword->next = wlst->next;
102 wlst->next = newword;
103 }
104 }
105 else
106 wlst->count++;
107 }
108
109 /**********************************************************/
110 /* wl_print prints a table showing the number */
111 /* of occurrences for each word, followed by the word. */
112 void wl_print(wordlist *list)
113 {
114 wordlistnode *wlist = list->head;
115 while(wlist != NULL) {
116 printf("%10d %s\n",wlist->count,wlist->word);
117 wlist=wlist->next;
118 }
119 printf("There are %d unique words in the document\n",
120 list->nwords);
121 }
122
123 /**********************************************************/
