refactor calling of toxic_string functions

src/toxic_strings.h

@@ -20,42 +20,42 @@
  *
  */
 
-/* Adds char to buffer at pos */
-void add_char_to_buf(wchar_t *buf, size_t *pos, size_t *len, wint_t ch);
+/* Adds char to line at pos */
+void add_char_to_buf(ChatContext *ctx, wint_t ch);
 
 /* Deletes the character before pos */
-void del_char_buf_bck(wchar_t *buf, size_t *pos, size_t *len);
+void del_char_buf_bck(ChatContext *ctx);
 
 /* Deletes the character at pos */
-void del_char_buf_frnt(wchar_t *buf, size_t *pos, size_t *len);
+void del_char_buf_frnt(ChatContext *ctx);
 
 /* Deletes the line from beginning to pos */
-void discard_buf(wchar_t *buf, size_t *pos, size_t *len);
+void discard_buf(ChatContext *ctx);
 
 /* Deletes the line from pos to len */
-void kill_buf(wchar_t *buf, size_t *pos, size_t *len);
+void kill_buf(ChatContext *ctx);
 
-/* nulls buf and sets pos and len to 0 */
-void reset_buf(wchar_t *buf, size_t *pos, size_t *len);
+/* nulls line and sets pos and len to 0 */
+void reset_buf(ChatContext *ctx);
 
-/* Removes trailing spaces from buf. */
-void rm_trailing_spaces_buf(wchar_t *buf, size_t *pos, size_t *len);
+/* Removes trailing spaces from line. */
+void rm_trailing_spaces_buf(ChatContext *ctx);
 
-/* looks for the first instance in list that begins with the last entered word in buf according to pos,
-   then fills buf with the complete word. e.g. "Hello jo" would complete the buffer
+/* looks for the first instance in list that begins with the last entered word in line according to pos,
+   then fills line with the complete word. e.g. "Hello jo" would complete the line
    with "Hello john".
 
    list is a pointer to the list of strings being compared, n_items is the number of items
    in the list, and size is the size of each item in the list.
 
-   Returns the difference between the old len and new len of buf on success, -1 if error */
-int complete_line(wchar_t *buf, size_t *pos, size_t *len, const void *list, int n_items, int size);
+   Returns the difference between the old len and new len of line on success, -1 if error */
+int complete_line(ChatContext *ctx, const void *list, int n_items, int size);
 
 /* adds a line to the ln_history buffer at hst_pos and sets hst_pos to last history item. */
-void add_line_to_hist(const wchar_t *buf, size_t len, wchar_t (*hst)[MAX_STR_SIZE], int *hst_tot,
-                      int *hst_pos);
+void add_line_to_hist(ChatContext *ctx);
 
-/* copies history item at hst_pos to buf. Sets pos and len to the len of the history item.
-   hst_pos is decremented or incremented depending on key_dir. */
-void fetch_hist_item(wchar_t *buf, size_t *pos, size_t *len, wchar_t (*hst)[MAX_STR_SIZE],
-                     int hst_tot, int *hst_pos, int key_dir);
+/* copies history item at hst_pos to line. Sets pos and len to the len of the history item.
+   hst_pos is decremented or incremented depending on key_dir.
+
+   resets line if at end of history */
+void fetch_hist_item(ChatContext *ctx, int key_dir);