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-rw-r--r--src/command/DatabaseCommands.cxx9
-rw-r--r--src/command/OtherCommands.cxx9
-rw-r--r--src/command/OutputCommands.cxx7
-rw-r--r--src/command/PlayerCommands.cxx29
-rw-r--r--src/command/PlaylistCommands.cxx14
-rw-r--r--src/command/QueueCommands.cxx46
-rw-r--r--src/command/Request.hxx40
-rw-r--r--src/command/TagCommands.cxx5
-rw-r--r--src/protocol/ArgParser.hxx4
9 files changed, 96 insertions, 67 deletions
diff --git a/src/command/DatabaseCommands.cxx b/src/command/DatabaseCommands.cxx
index 99a200848..6e6f3399b 100644
--- a/src/command/DatabaseCommands.cxx
+++ b/src/command/DatabaseCommands.cxx
@@ -33,7 +33,6 @@
#include "util/Error.hxx"
#include "SongFilter.hxx"
#include "protocol/Result.hxx"
-#include "protocol/ArgParser.hxx"
#include "BulkEdit.hxx"
#include <string.h>
@@ -54,7 +53,7 @@ CommandResult
handle_lsinfo2(Client &client, Request args)
{
/* default is root directory */
- const char *const uri = args.IsEmpty() ? "" : args.front();
+ const auto uri = args.GetOptional(0, "");
const DatabaseSelection selection(uri, false);
@@ -70,7 +69,7 @@ handle_match(Client &client, Request args, bool fold_case)
{
RangeArg window;
if (args.size >= 2 && strcmp(args[args.size - 2], "window") == 0) {
- if (!ParseCommandArg(client, window, args.back()))
+ if (!args.Parse(args.size - 1, window, client))
return CommandResult::ERROR;
args.pop_back();
@@ -190,7 +189,7 @@ CommandResult
handle_listall(Client &client, Request args)
{
/* default is root directory */
- const char *const uri = args.IsEmpty() ? "" : args.front();
+ const auto uri = args.GetOptional(0, "");
Error error;
return db_selection_print(client, DatabaseSelection(uri, true),
@@ -275,7 +274,7 @@ CommandResult
handle_listallinfo(Client &client, Request args)
{
/* default is root directory */
- const char *const uri = args.IsEmpty() ? "" : args.front();
+ const auto uri = args.GetOptional(0, "");
Error error;
return db_selection_print(client, DatabaseSelection(uri, true),
diff --git a/src/command/OtherCommands.cxx b/src/command/OtherCommands.cxx
index 816764a5d..2e20d8dd5 100644
--- a/src/command/OtherCommands.cxx
+++ b/src/command/OtherCommands.cxx
@@ -32,7 +32,6 @@
#include "tag/TagHandler.hxx"
#include "TimePrint.hxx"
#include "decoder/DecoderPrint.hxx"
-#include "protocol/ArgParser.hxx"
#include "protocol/Result.hxx"
#include "ls.hxx"
#include "mixer/Volume.hxx"
@@ -116,7 +115,7 @@ CommandResult
handle_listfiles(Client &client, Request args)
{
/* default is root directory */
- const char *const uri = args.IsEmpty() ? "" : args.front();
+ const auto uri = args.GetOptional(0, "");
if (memcmp(uri, "file:///", 8) == 0)
/* list local directory */
@@ -155,7 +154,7 @@ CommandResult
handle_lsinfo(Client &client, Request args)
{
/* default is root directory */
- const char *const uri = args.IsEmpty() ? "" : args.front();
+ const auto uri = args.GetOptional(0, "");
if (memcmp(uri, "file:///", 8) == 0) {
/* print information about an arbitrary local file */
@@ -309,7 +308,7 @@ CommandResult
handle_setvol(Client &client, Request args)
{
unsigned level;
- if (!ParseCommandArg(client, level, args.front(), 100))
+ if (!args.Parse(0, level, client, 100))
return CommandResult::ERROR;
if (!volume_level_change(client.partition.outputs, level)) {
@@ -325,7 +324,7 @@ CommandResult
handle_volume(Client &client, Request args)
{
int relative;
- if (!ParseCommandArg(client, relative, args.front(), -100, 100))
+ if (!args.Parse(0, relative, client, -100, 100))
return CommandResult::ERROR;
const int old_volume = volume_level_get(client.partition.outputs);
diff --git a/src/command/OutputCommands.cxx b/src/command/OutputCommands.cxx
index 885144168..39602aba8 100644
--- a/src/command/OutputCommands.cxx
+++ b/src/command/OutputCommands.cxx
@@ -23,7 +23,6 @@
#include "output/OutputPrint.hxx"
#include "output/OutputCommand.hxx"
#include "protocol/Result.hxx"
-#include "protocol/ArgParser.hxx"
#include "client/Client.hxx"
#include "Partition.hxx"
#include "util/ConstBuffer.hxx"
@@ -34,7 +33,7 @@ handle_enableoutput(Client &client, Request args)
assert(args.size == 1);
unsigned device;
- if (!ParseCommandArg(client, device, args.front()))
+ if (!args.Parse(0, device, client))
return CommandResult::ERROR;
if (!audio_output_enable_index(client.partition.outputs, device)) {
@@ -52,7 +51,7 @@ handle_disableoutput(Client &client, Request args)
assert(args.size == 1);
unsigned device;
- if (!ParseCommandArg(client, device, args.front()))
+ if (!args.Parse(0, device, client))
return CommandResult::ERROR;
if (!audio_output_disable_index(client.partition.outputs, device)) {
@@ -70,7 +69,7 @@ handle_toggleoutput(Client &client, Request args)
assert(args.size == 1);
unsigned device;
- if (!ParseCommandArg(client, device, args.front()))
+ if (!args.Parse(0, device, client))
return CommandResult::ERROR;
if (!audio_output_toggle_index(client.partition.outputs, device)) {
diff --git a/src/command/PlayerCommands.cxx b/src/command/PlayerCommands.cxx
index ac7fdecfd..e0c0f61a8 100644
--- a/src/command/PlayerCommands.cxx
+++ b/src/command/PlayerCommands.cxx
@@ -28,7 +28,6 @@
#include "Partition.hxx"
#include "Instance.hxx"
#include "protocol/Result.hxx"
-#include "protocol/ArgParser.hxx"
#include "AudioFormat.hxx"
#include "ReplayGainConfig.hxx"
#include "util/ConstBuffer.hxx"
@@ -61,7 +60,7 @@ CommandResult
handle_play(Client &client, Request args)
{
int song = -1;
- if (!args.IsEmpty() && !ParseCommandArg(client, song, args.front()))
+ if (!args.ParseOptional(0, song, client))
return CommandResult::ERROR;
PlaylistResult result = client.partition.PlayPosition(song);
@@ -72,7 +71,7 @@ CommandResult
handle_playid(Client &client, Request args)
{
int id = -1;
- if (!args.IsEmpty() && !ParseCommandArg(client, id, args.front()))
+ if (!args.ParseOptional(0, id, client))
return CommandResult::ERROR;
PlaylistResult result = client.partition.PlayId(id);
@@ -98,7 +97,7 @@ handle_pause(Client &client, Request args)
{
if (!args.IsEmpty()) {
bool pause_flag;
- if (!ParseCommandArg(client, pause_flag, args.front()))
+ if (!args.Parse(0, pause_flag, client))
return CommandResult::ERROR;
client.player_control.SetPause(pause_flag);
@@ -249,7 +248,7 @@ CommandResult
handle_repeat(Client &client, Request args)
{
bool status;
- if (!ParseCommandArg(client, status, args.front()))
+ if (!args.Parse(0, status, client))
return CommandResult::ERROR;
client.partition.SetRepeat(status);
@@ -260,7 +259,7 @@ CommandResult
handle_single(Client &client, Request args)
{
bool status;
- if (!ParseCommandArg(client, status, args.front()))
+ if (!args.Parse(0, status, client))
return CommandResult::ERROR;
client.partition.SetSingle(status);
@@ -271,7 +270,7 @@ CommandResult
handle_consume(Client &client, Request args)
{
bool status;
- if (!ParseCommandArg(client, status, args.front()))
+ if (!args.Parse(0, status, client))
return CommandResult::ERROR;
client.partition.SetConsume(status);
@@ -282,7 +281,7 @@ CommandResult
handle_random(Client &client, Request args)
{
bool status;
- if (!ParseCommandArg(client, status, args.front()))
+ if (!args.Parse(0, status, client))
return CommandResult::ERROR;
client.partition.SetRandom(status);
@@ -303,9 +302,9 @@ handle_seek(Client &client, Request args)
unsigned song;
SongTime seek_time;
- if (!ParseCommandArg(client, song, args[0]))
+ if (!args.Parse(0, song, client))
return CommandResult::ERROR;
- if (!ParseCommandArg(client, seek_time, args[1]))
+ if (!args.Parse(1, seek_time, client))
return CommandResult::ERROR;
PlaylistResult result =
@@ -318,9 +317,9 @@ handle_seekid(Client &client, Request args)
{
unsigned id;
SongTime seek_time;
- if (!ParseCommandArg(client, id, args[0]))
+ if (!args.Parse(0, id, client))
return CommandResult::ERROR;
- if (!ParseCommandArg(client, seek_time, args[1]))
+ if (!args.Parse(1, seek_time, client))
return CommandResult::ERROR;
PlaylistResult result =
@@ -346,7 +345,7 @@ CommandResult
handle_crossfade(Client &client, Request args)
{
unsigned xfade_time;
- if (!ParseCommandArg(client, xfade_time, args.front()))
+ if (!args.Parse(0, xfade_time, client))
return CommandResult::ERROR;
client.player_control.SetCrossFade(xfade_time);
@@ -357,7 +356,7 @@ CommandResult
handle_mixrampdb(Client &client, Request args)
{
float db;
- if (!ParseCommandArg(client, db, args.front()))
+ if (!args.Parse(0, db, client))
return CommandResult::ERROR;
client.player_control.SetMixRampDb(db);
@@ -368,7 +367,7 @@ CommandResult
handle_mixrampdelay(Client &client, Request args)
{
float delay_secs;
- if (!ParseCommandArg(client, delay_secs, args.front()))
+ if (!args.Parse(0, delay_secs, client))
return CommandResult::ERROR;
client.player_control.SetMixRampDelay(delay_secs);
diff --git a/src/command/PlaylistCommands.cxx b/src/command/PlaylistCommands.cxx
index f6f610d7a..0122cecbd 100644
--- a/src/command/PlaylistCommands.cxx
+++ b/src/command/PlaylistCommands.cxx
@@ -33,7 +33,6 @@
#include "queue/Playlist.hxx"
#include "TimePrint.hxx"
#include "client/Client.hxx"
-#include "protocol/ArgParser.hxx"
#include "protocol/Result.hxx"
#include "ls.hxx"
#include "Mapper.hxx"
@@ -71,10 +70,8 @@ handle_save(Client &client, Request args)
CommandResult
handle_load(Client &client, Request args)
{
- RangeArg range;
- if (args.size < 2)
- range.SetAll();
- else if (!ParseCommandArg(client, range, args[1]))
+ RangeArg range = RangeArg::All();
+ if (!args.ParseOptional(1, range, client))
return CommandResult::ERROR;
const ScopeBulkEdit bulk_edit(client.partition);
@@ -146,7 +143,7 @@ handle_playlistdelete(Client &client, Request args)
{
const char *const name = args[0];
unsigned from;
- if (!ParseCommandArg(client, from, args[1]))
+ if (!args.Parse(1, from, client))
return CommandResult::ERROR;
Error error;
@@ -160,9 +157,8 @@ handle_playlistmove(Client &client, Request args)
{
const char *const name = args.front();
unsigned from, to;
- if (!ParseCommandArg(client, from, args[1]))
- return CommandResult::ERROR;
- if (!ParseCommandArg(client, to, args[2]))
+ if (!args.Parse(1, from, client) ||
+ !args.Parse(2, to, client))
return CommandResult::ERROR;
Error error;
diff --git a/src/command/QueueCommands.cxx b/src/command/QueueCommands.cxx
index 9a64ceb25..1413a68c9 100644
--- a/src/command/QueueCommands.cxx
+++ b/src/command/QueueCommands.cxx
@@ -30,7 +30,6 @@
#include "client/Client.hxx"
#include "Partition.hxx"
#include "BulkEdit.hxx"
-#include "protocol/ArgParser.hxx"
#include "protocol/Result.hxx"
#include "ls.hxx"
#include "util/ConstBuffer.hxx"
@@ -105,8 +104,9 @@ handle_addid(Client &client, Request args)
if (args.size == 2) {
unsigned to;
- if (!ParseCommandArg(client, to, args[1]))
+ if (!args.Parse(1, to, client))
return CommandResult::ERROR;
+
PlaylistResult result = client.partition.MoveId(added_id, to);
if (result != PlaylistResult::SUCCESS) {
CommandResult ret =
@@ -155,7 +155,7 @@ CommandResult
handle_rangeid(Client &client, Request args)
{
unsigned id;
- if (!ParseCommandArg(client, id, args.front()))
+ if (!args.Parse(0, id, client))
return CommandResult::ERROR;
SongTime start, end;
@@ -177,7 +177,7 @@ CommandResult
handle_delete(Client &client, Request args)
{
RangeArg range;
- if (!ParseCommandArg(client, range, args.front()))
+ if (!args.Parse(0, range, client))
return CommandResult::ERROR;
auto result = client.partition.DeleteRange(range.start, range.end);
@@ -188,7 +188,7 @@ CommandResult
handle_deleteid(Client &client, Request args)
{
unsigned id;
- if (!ParseCommandArg(client, id, args.front()))
+ if (!args.Parse(0, id, client))
return CommandResult::ERROR;
PlaylistResult result = client.partition.DeleteId(id);
@@ -205,10 +205,8 @@ handle_playlist(Client &client, gcc_unused Request args)
CommandResult
handle_shuffle(gcc_unused Client &client, Request args)
{
- RangeArg range;
- if (args.IsEmpty())
- range.SetAll();
- else if (!ParseCommandArg(client, range, args.front()))
+ RangeArg range = RangeArg::All();
+ if (!args.ParseOptional(0, range, client))
return CommandResult::ERROR;
client.partition.Shuffle(range.start, range.end);
@@ -249,10 +247,8 @@ handle_plchangesposid(Client &client, Request args)
CommandResult
handle_playlistinfo(Client &client, Request args)
{
- RangeArg range;
- if (args.IsEmpty())
- range.SetAll();
- else if (!ParseCommandArg(client, range, args.front()))
+ RangeArg range = RangeArg::All();
+ if (!args.ParseOptional(0, range, client))
return CommandResult::ERROR;
if (!playlist_print_info(client, client.playlist,
@@ -268,7 +264,7 @@ handle_playlistid(Client &client, Request args)
{
if (!args.IsEmpty()) {
unsigned id;
- if (!ParseCommandArg(client, id, args.front()))
+ if (!args.Parse(0, id, client))
return CommandResult::ERROR;
bool ret = playlist_print_id(client, client.playlist, id);
@@ -312,9 +308,8 @@ handle_playlistsearch(Client &client, Request args)
CommandResult
handle_prio(Client &client, Request args)
{
- const char *const priority_string = args.shift();
unsigned priority;
- if (!ParseCommandArg(client, priority, priority_string, 0xff))
+ if (!args.ParseShift(0, priority, client, 0xff))
return CommandResult::ERROR;
for (const char *i : args) {
@@ -336,9 +331,8 @@ handle_prio(Client &client, Request args)
CommandResult
handle_prioid(Client &client, Request args)
{
- const char *const priority_string = args.shift();
unsigned priority;
- if (!ParseCommandArg(client, priority, priority_string, 0xff))
+ if (!args.ParseShift(0, priority, client, 0xff))
return CommandResult::ERROR;
for (const char *i : args) {
@@ -361,8 +355,8 @@ handle_move(Client &client, Request args)
RangeArg range;
int to;
- if (!ParseCommandArg(client, range, args[0]) ||
- !ParseCommandArg(client, to, args[1]))
+ if (!args.Parse(0, range, client) ||
+ !args.Parse(1, to, client))
return CommandResult::ERROR;
PlaylistResult result =
@@ -375,8 +369,8 @@ handle_moveid(Client &client, Request args)
{
unsigned id;
int to;
- if (!ParseCommandArg(client, id, args[0]) ||
- !ParseCommandArg(client, to, args[1]))
+ if (!args.Parse(0, id, client) ||
+ !args.Parse(1, to, client))
return CommandResult::ERROR;
PlaylistResult result = client.partition.MoveId(id, to);
@@ -387,8 +381,8 @@ CommandResult
handle_swap(Client &client, Request args)
{
unsigned song1, song2;
- if (!ParseCommandArg(client, song1, args[0]) ||
- !ParseCommandArg(client, song2, args[1]))
+ if (!args.Parse(0, song1, client) ||
+ !args.Parse(1, song2, client))
return CommandResult::ERROR;
PlaylistResult result =
@@ -400,8 +394,8 @@ CommandResult
handle_swapid(Client &client, Request args)
{
unsigned id1, id2;
- if (!ParseCommandArg(client, id1, args[0]) ||
- !ParseCommandArg(client, id2, args[1]))
+ if (!args.Parse(0, id1, client) ||
+ !args.Parse(1, id2, client))
return CommandResult::ERROR;
PlaylistResult result = client.partition.SwapIds(id1, id2);
diff --git a/src/command/Request.hxx b/src/command/Request.hxx
index 18fdff7f3..38b3c584c 100644
--- a/src/command/Request.hxx
+++ b/src/command/Request.hxx
@@ -21,14 +21,54 @@
#define MPD_REQUEST_HXX
#include "check.h"
+#include "protocol/ArgParser.hxx"
#include "util/ConstBuffer.hxx"
+#include <utility>
+
+#include <assert.h>
+
+class Client;
+
class Request : public ConstBuffer<const char *> {
typedef ConstBuffer<const char *> Base;
public:
constexpr Request(const char *const*argv, size_type n)
:Base(argv, n) {}
+
+ constexpr const char *GetOptional(unsigned idx,
+ const char *default_value=nullptr) const {
+ return idx < size
+ ? data[idx]
+ : default_value;
+ }
+
+ template<typename T, typename... Args>
+ bool Parse(unsigned idx, T &value_r, Client &client,
+ Args&&... args) {
+ assert(idx < size);
+
+ return ParseCommandArg(client, value_r, data[idx],
+ std::forward<Args>(args)...);
+ }
+
+ template<typename T, typename... Args>
+ bool ParseOptional(unsigned idx, T &value_r, Client &client,
+ Args&&... args) {
+ return idx >= size ||
+ Parse(idx, value_r, client,
+ std::forward<Args>(args)...);
+ }
+
+ template<typename T, typename... Args>
+ bool ParseShift(unsigned idx, T &value_r, Client &client,
+ Args&&... args) {
+ bool success = Parse(idx, value_r, client,
+ std::forward<Args>(args)...);
+ shift();
+ return success;
+ }
};
#endif
diff --git a/src/command/TagCommands.cxx b/src/command/TagCommands.cxx
index aa8cf139d..2690f39bf 100644
--- a/src/command/TagCommands.cxx
+++ b/src/command/TagCommands.cxx
@@ -22,7 +22,6 @@
#include "Request.hxx"
#include "CommandError.hxx"
#include "client/Client.hxx"
-#include "protocol/ArgParser.hxx"
#include "protocol/Result.hxx"
#include "tag/Tag.hxx"
#include "Partition.hxx"
@@ -32,7 +31,7 @@ CommandResult
handle_addtagid(Client &client, Request args)
{
unsigned song_id;
- if (!ParseCommandArg(client, song_id, args.front()))
+ if (!args.Parse(0, song_id, client))
return CommandResult::ERROR;
const char *const tag_name = args[1];
@@ -57,7 +56,7 @@ CommandResult
handle_cleartagid(Client &client, Request args)
{
unsigned song_id;
- if (!ParseCommandArg(client, song_id, args.front()))
+ if (!args.Parse(0, song_id, client))
return CommandResult::ERROR;
TagType tag_type = TAG_NUM_OF_ITEM_TYPES;
diff --git a/src/protocol/ArgParser.hxx b/src/protocol/ArgParser.hxx
index 87f15846a..b05d7224e 100644
--- a/src/protocol/ArgParser.hxx
+++ b/src/protocol/ArgParser.hxx
@@ -47,6 +47,10 @@ struct RangeArg {
start = 0;
end = std::numeric_limits<unsigned>::max();
}
+
+ static constexpr RangeArg All() {
+ return { 0, std::numeric_limits<unsigned>::max() };
+ }
};
bool