* Allow certain commands, like schedule and on_* to take unquoted

multi-arg commands. So "on_start = link1,create_link=tied,,.started"
now works again.


git-svn-id: svn://rakshasa.no/libtorrent/trunk/rtorrent@879 e378c898-3ddf-0310-93e7-cc216c733640

src/option_handler_rules.cc

@@ -210,7 +210,7 @@ apply_stop_on_ratio(const torrent::Object::list_type& args) {
 
 void
 apply_on_state_change(core::DownloadList::slot_map* slotMap, const torrent::Object::list_type& args) {
-  if (args.size() != 2)
+  if (args.size() < 2)
     throw torrent::input_error("Too few arguments.");
 
   if (args.front().as_string().empty())
@@ -221,7 +221,8 @@ apply_on_state_change(core::DownloadList::slot_map* slotMap, const torrent::Obje
   if (args.back().as_string().empty())
     slotMap->erase(key);
   else
-    (*slotMap)[key] = sigc::bind(sigc::mem_fun(control->download_variables(), &utils::VariableMap::process_d_std_single), args.back().as_string());
+    (*slotMap)[key] = sigc::bind(sigc::mem_fun(control->download_variables(), &utils::VariableMap::process_d_std_single),
+                                 utils::convert_list_to_command(++args.begin(), args.end()));
 }
 
 void
@@ -406,17 +407,16 @@ apply_try_import(const std::string& path) {
 
 void
 apply_schedule(const torrent::Object::list_type& args) {
-  if (args.size() != 4)
-    throw torrent::input_error("Wrong argument count.");
+  if (args.size() < 4)
+    throw torrent::input_error("Too few arguments.");
 
   torrent::Object::list_type::const_iterator itr = args.begin();
 
   const std::string& arg1 = (itr++)->as_string();
   const std::string& arg2 = (itr++)->as_string();
   const std::string& arg3 = (itr++)->as_string();
-  const std::string& arg4 = (itr++)->as_string();
 
-  control->command_scheduler()->parse(arg1, arg2, arg3, arg4);
+  control->command_scheduler()->parse(arg1, arg2, arg3, utils::convert_list_to_command(itr, args.end()));
 }
 
 void

src/utils/parse.cc

@@ -184,17 +184,82 @@ convert_list_to_string(const torrent::Object& src) {
   if (!src.is_list())
     throw torrent::internal_error("convert_list_to_string(...) !src->is_list().");
 
+  return convert_list_to_string(src.as_list().begin(), src.as_list().end());
+}
+
+std::string
+convert_list_to_string(torrent::Object::list_type::const_iterator first,
+                       torrent::Object::list_type::const_iterator last) {
   std::string dest;
 
-  for (torrent::Object::list_type::const_iterator itr = src.as_list().begin(), last = src.as_list().end(); itr != last; itr++) {
-    if (!itr->is_string())
+  while (first != last) {
+    if (!first->is_string())
       throw torrent::input_error("Could not convert non-string list element to string.");
 
     // Meh.
     if (!dest.empty())
-      dest += ",";
+      dest += ",\"";
+    else
+      dest += '"';
 
-    dest += itr->as_string();
+    std::string::size_type quoteItr = dest.size();
+    dest += first->as_string();
+
+    // Finding a quote inside the string should be relatively rare, so
+    // use something that is fast in the general case and ignore the
+    // cost of the unusual one.
+    while (quoteItr != dest.size()) {
+      if (dest[quoteItr] == '"' || dest[quoteItr] == '\\')
+        dest.insert(quoteItr++, 1, '\\');
+
+      quoteItr++;
+    }
+
+    dest += '"';
+    first++;
+  }
+
+  return dest;
+}
+
+std::string
+convert_list_to_command(torrent::Object::list_type::const_iterator first,
+                        torrent::Object::list_type::const_iterator last) {
+  if (first == last)
+    throw torrent::input_error("Too few arguments.");
+
+  std::string dest = (first++)->as_string();
+  std::string::size_type quoteItr = dest.find('=');
+  
+  if (quoteItr == std::string::npos)
+    throw torrent::input_error("Could not find '=' in command.");
+
+  // We should only escape backslash, not quote here as the string
+  // will start with the command name which isn't quoted.
+  while ((quoteItr = dest.find('\\', quoteItr + 1)) != std::string::npos)
+    dest.insert(quoteItr++, 1, '\\');
+
+  while (first != last) {
+    if (!first->is_string())
+      throw torrent::input_error("Could not convert non-string list element to string.");
+
+    dest += ",\"";
+
+    std::string::size_type quoteItr = dest.size();
+    dest += first->as_string();
+
+    // Finding a quote inside the string should be relatively rare, so
+    // use something that is fast in the general case and ignore the
+    // cost of the unusual one.
+    while (quoteItr != dest.size()) {
+      if (dest[quoteItr] == '"' || dest[quoteItr] == '\\')
+        dest.insert(quoteItr++, 1, '\\');
+
+      quoteItr++;
+    }
+
+    dest += '"';
+    first++;
   }
 
   return dest;

src/utils/parse.h

@@ -61,6 +61,9 @@ const char* parse_list(const char* first, const char* last, torrent::Object* des
 const char* parse_whole_list(const char* first, const char* last, torrent::Object* dest);
 
 std::string convert_list_to_string(const torrent::Object& src);
+std::string convert_list_to_string(torrent::Object::list_type::const_iterator first, torrent::Object::list_type::const_iterator last);
+std::string convert_list_to_command(torrent::Object::list_type::const_iterator first, torrent::Object::list_type::const_iterator last);
+
 int64_t     convert_to_value(const torrent::Object& src, int base = 0, int unit = 1);
 
 }