From 01748cc2548aa19c160ddbb8d18e28dddc1efd9f Mon Sep 17 00:00:00 2001
From: Pierre Habouzit <madcoder@debian.org>
Date: Mon, 4 Dec 2006 01:03:58 +0100
Subject: [PATCH] impressive how mutt upstream don't get how list work.
 simplify lots of code, more to come.

Signed-off-by: Pierre Habouzit <madcoder@debian.org>
---
 init.c | 109 +++++++++++++++++++++++----------------------------------
 1 file changed, 43 insertions(+), 66 deletions(-)

diff --git a/init.c b/init.c
index 94c82b2..2be929e 100644
--- a/init.c
+++ b/init.c
@@ -585,41 +585,27 @@ int query_quadoption (int opt, const char *prompt)
   /* not reached */
 }
 
-static void add_to_list (string_list_t ** list, const char *str)
+static void add_to_list(string_list_t **list, const char *str)
 {
-  string_list_t *t, *last = NULL;
-
-  /* don't add a NULL or empty string to the list */
-  if (!str || *str == '\0')
-    return;
+    /* don't add a NULL or empty string to the list */
+    if (m_strisempty(str))
+        return;
 
-  /* check to make sure the item is not already on this list */
-  for (last = *list; last; last = last->next) {
-    if (ascii_strcasecmp (str, last->data) == 0) {
-      /* already on the list, so just ignore it */
-      last = NULL;
-      break;
+    /* check to make sure the item is not already on this list */
+    while (*list) {
+        if (!ascii_strcasecmp(str, (*list)->data))
+            return;
+        list = &(*list)->next;
     }
-    if (!last->next)
-      break;
-  }
 
-  if (!*list || last) {
-    t = p_new(string_list_t, 1);
-    t->data = m_strdup(str);
-    if (last) {
-      last->next = t;
-      last = last->next;
-    }
-    else
-      *list = last = t;
-  }
+    *list = p_new(string_list_t, 1);
+    (*list)->data = m_strdup(str);
 }
 
 static int
 add_to_rx_list(rx_t **list, const char *s, int flags, BUFFER *err)
 {
-    rx_t* rx;
+    rx_t *rx;
 
     if (m_strisempty(s))
         return 0;
@@ -640,7 +626,7 @@ add_to_rx_list(rx_t **list, const char *s, int flags, BUFFER *err)
 static int add_to_spam_list(rx_t **list, const char *pat,
                              const char *templ, BUFFER * err)
 {
-    rx_t **last, *rx;
+    rx_t *rx;
 
     if (m_strisempty(pat) || !templ)
         return 0;
@@ -651,62 +637,53 @@ static int add_to_spam_list(rx_t **list, const char *pat,
     }
 
     /* check to make sure the item is not already on this list */
-    for (last = list; *last; last = &(*last)->next) {
-        if (!ascii_strcasecmp(rx->pattern, (*last)->pattern) == 0) {
-            rx_t *tmp = rx_list_pop(last);
+    while (*list) {
+        if (!ascii_strcasecmp(rx->pattern, (*list)->pattern)) {
+            rx_t *tmp = rx_list_pop(list);
             rx_delete(&tmp);
-            last = rx_list_last(last);
-            break;
+        } else {
+            list = &(*list)->next;
         }
     }
 
-    *last = rx;
+    *list = rx;
     rx_set_template(rx, templ);
     return 0;
 }
 
 static int remove_from_spam_list (rx_t ** list, const char *pat)
 {
-  int nremoved = 0;
-
-  while (*list) {
-      if (!m_strcmp((*list)->pattern, pat)) {
-          rx_t *spam = rx_list_pop(list);
-          rx_delete(&spam);
-          nremoved++;
-      } else {
-          list = &(*list)->next;
-      }
-  }
+    int nremoved = 0;
+
+    while (*list) {
+        if (!m_strcmp((*list)->pattern, pat)) {
+            rx_t *spam = rx_list_pop(list);
+            rx_delete(&spam);
+            nremoved++;
+        } else {
+            list = &(*list)->next;
+        }
+    }
 
-  return nremoved;
+    return nremoved;
 }
 
 
-static void remove_from_list (string_list_t ** l, const char *str)
+static void remove_from_list(string_list_t **l, const char *str)
 {
-  string_list_t *p, *last = NULL;
+    if (!m_strcmp("*", str)) {
+        string_list_wipe(l);  /* ``unCMD *'' means delete all current entries */
+        return;
+    }
 
-  if (m_strcmp("*", str) == 0)
-    string_list_wipe(l);         /* ``unCMD *'' means delete all current entries */
-  else {
-    p = *l;
-    last = NULL;
-    while (p) {
-      if (ascii_strcasecmp (str, p->data) == 0) {
-        p_delete(&p->data);
-        if (last)
-          last->next = p->next;
-        else
-          (*l) = p->next;
-        p_delete(&p);
-      }
-      else {
-        last = p;
-        p = p->next;
-      }
+    while (*l) {
+        if (!ascii_strcasecmp(str, (*l)->data)) {
+            string_list_t *it = string_list_pop(l);
+            string_item_delete(&it);
+        } else {
+            l = &(*l)->next;
+        }
     }
-  }
 }
 
 static int remove_from_rx_list(rx_t **l, const char *str)
-- 
2.20.1