From 53b1d39270dad5bcba362bf9d399d9c592d842c3 Mon Sep 17 00:00:00 2001
From: Pierre Habouzit <madcoder@debian.org>
Date: Tue, 2 Jan 2007 08:06:54 +0100
Subject: [PATCH] simplify hooks code a lot.

Signed-off-by: Pierre Habouzit <madcoder@debian.org>
---
 hook.c | 94 ++++++++++++++++++++--------------------------------------
 1 file changed, 32 insertions(+), 62 deletions(-)

diff --git a/hook.c b/hook.c
index 6747771..69ca2a0 100644
--- a/hook.c
+++ b/hook.c
@@ -16,24 +16,30 @@
 #include "alias.h"
 #include "pattern.h"
 
-#define ERROR_STOP      0
-
-typedef struct hook {
+typedef struct hook_t {
   int type;                     /* hook type */
   rx_t rx;                      /* regular expression */
   char *command;                /* filename, command or pattern to execute */
   pattern_t *pattern;           /* used for fcc,save,send-hook */
-  struct hook *next;
-} HOOK;
+  struct hook_t *next;
+} hook_t;
 
-static HOOK *Hooks = NULL;
+DO_INIT(hook_t, hook);
+static inline void hook_wipe(hook_t *hk) {
+    p_delete(&hk->command);
+    pattern_list_wipe(&hk->pattern);
+}
+DO_NEW(hook_t, hook);
+DO_DELETE(hook_t, hook);
+DO_SLIST(hook_t, hook, hook_delete);
 
+static hook_t *Hooks = NULL;
 static unsigned long current_hook_type = 0;
 
 int mutt_parse_hook (BUFFER * buf __attribute__ ((unused)), BUFFER * s,
                      unsigned long data, BUFFER * err)
 {
-  HOOK *ptr;
+  hook_t *ptr;
   BUFFER command, pattern;
   int rc, not = 0;
   regex_t *rx = NULL;
@@ -166,11 +172,11 @@ int mutt_parse_hook (BUFFER * buf __attribute__ ((unused)), BUFFER * s,
   }
 
   if (ptr) {
-    ptr->next = p_new(HOOK, 1);
+    ptr->next = p_new(hook_t, 1);
     ptr = ptr->next;
   }
   else
-    Hooks = ptr = p_new(HOOK, 1);
+    Hooks = ptr = p_new(hook_t, 1);
   ptr->type = data;
   ptr->command = command.data;
   ptr->pattern = pat;
@@ -185,39 +191,19 @@ error:
   return (-1);
 }
 
-static void delete_hook (HOOK * h)
-{
-  p_delete(&h->command);
-  p_delete(&h->rx.pattern);
-  if (h->rx.rx) {
-    regfree (h->rx.rx);
-  }
-  pattern_list_wipe(&h->pattern);
-  p_delete(&h);
-}
-
 /* Deletes all hooks of type ``type'', or all defined hooks if ``type'' is 0 */
 static void delete_hooks (long type)
 {
-  HOOK *h;
-  HOOK *prev;
-
-  while (h = Hooks, h && (type == 0 || type == h->type)) {
-    Hooks = h->next;
-    delete_hook (h);
-  }
-
-  prev = h;                     /* Unused assignment to avoid compiler warnings */
-
-  while (h) {
-    if (type == h->type) {
-      prev->next = h->next;
-      delete_hook (h);
+    hook_t **l = &Hooks;
+
+    while (*l) {
+        if ((*l)->type == type) {
+            hook_t *tmp = hook_list_pop(l);
+            hook_delete(&tmp);
+        } else {
+            l = &(*l)->next;
+        }
     }
-    else
-      prev = h;
-    h = prev->next;
-  }
 }
 
 int mutt_parse_unhook (BUFFER * buf, BUFFER * s, unsigned long data __attribute__ ((unused)),
@@ -231,9 +217,8 @@ int mutt_parse_unhook (BUFFER * buf, BUFFER * s, unsigned long data __attribute_
                   _("unhook: Can't do unhook * from within a hook."));
         return -1;
       }
-      delete_hooks (0);
-    }
-    else {
+      hook_list_wipe(&Hooks);
+    } else {
       unsigned long type = mutt_get_hook_type (buf->data);
 
       if (!type) {
@@ -255,7 +240,7 @@ int mutt_parse_unhook (BUFFER * buf, BUFFER * s, unsigned long data __attribute_
 
 void mutt_folder_hook (char *path)
 {
-  HOOK *tmp = Hooks;
+  hook_t *tmp = Hooks;
   BUFFER err, token;
   char buf[STRING];
 
@@ -273,11 +258,6 @@ void mutt_folder_hook (char *path)
         if (mutt_parse_rc_line (tmp->command, &token, &err) == -1) {
           mutt_error ("%s", err.data);
           mutt_sleep (1);       /* pause a moment to let the user see the error */
-          if (ERROR_STOP) {
-            p_delete(&token.data);
-            current_hook_type = 0;
-            return;
-          }
         }
       }
     }
@@ -289,7 +269,7 @@ void mutt_folder_hook (char *path)
 
 char *mutt_find_hook (int type, const char *pat)
 {
-  HOOK *tmp = Hooks;
+  hook_t *tmp = Hooks;
 
   for (; tmp; tmp = tmp->next)
     if (tmp->type & type) {
@@ -302,7 +282,7 @@ char *mutt_find_hook (int type, const char *pat)
 void mutt_message_hook (CONTEXT * ctx, HEADER * hdr, int type)
 {
   BUFFER err, token;
-  HOOK *hook;
+  hook_t *hook;
   char buf[STRING];
 
   current_hook_type = type;
@@ -319,11 +299,6 @@ void mutt_message_hook (CONTEXT * ctx, HEADER * hdr, int type)
         if (mutt_parse_rc_line (hook->command, &token, &err) != 0) {
           mutt_error ("%s", err.data);
           mutt_sleep (1);
-          if (ERROR_STOP) {
-            p_delete(&token.data);
-            current_hook_type = 0;
-            return;
-          }
         }
   }
   p_delete(&token.data);
@@ -334,7 +309,7 @@ static int
 mutt_addr_hook (char *path, ssize_t pathlen, unsigned long type, CONTEXT * ctx,
                 HEADER * hdr)
 {
-  HOOK *hook;
+  hook_t *hook;
 
   /* determine if a matching hook exists */
   for (hook = Hooks; hook; hook = hook->next) {
@@ -400,7 +375,7 @@ void mutt_select_fcc (char *path, ssize_t pathlen, HEADER * hdr)
 
 static const char *_mutt_string_hook (const char *match, int hook)
 {
-  HOOK *tmp = Hooks;
+  hook_t *tmp = Hooks;
 
   for (; tmp; tmp = tmp->next) {
     if ((tmp->type & hook)
@@ -427,7 +402,7 @@ const char *mutt_crypt_hook (address_t * adr)
 
 void mutt_account_hook (const char *url)
 {
-  HOOK *hook;
+  hook_t *hook;
   BUFFER token;
   BUFFER err;
   char buf[STRING];
@@ -444,11 +419,6 @@ void mutt_account_hook (const char *url)
       if (mutt_parse_rc_line (hook->command, &token, &err) == -1) {
         mutt_error ("%s", err.data);
         mutt_sleep (1);
-        if (ERROR_STOP) {
-          p_delete(&token.data);
-          current_hook_type = 0;
-          return;
-        }
       }
     }
   }
-- 
2.20.1