predicate.cpp File Reference

Predicate handling. More...

#include <config.h>
#include <cstdlib>
#include <memory>
#include <unordered_set>
#include <exception>
#include <algorithm>
#include <football/football.h>
#include <parsnip/parsnip.h>
#include <parsnip/parsnip_command.h>
#include "fundamentals.h"
#include "lookup.h"
#include "utility.h"
#include "interpreter.h"
#include "predicate.h"
#include "connection.h"
#include "retainedlist.h"
#include "filter.h"
#include "querylist.h"
#include "mediaunit.h"
#include "mediamanager.h"

Include dependency graph for predicate.cpp:

Classes
struct	Predicate::Predicate

Namespaces
	Predicate
	Functions and types for parsing and interpreting predicates.

Macros
#define	PREDKEY_EXPRESSION   "expression"
#define	PREDKEY_ITEMLIST   "items"
#define	PREDKEY_FULFILLMENT   "fulfill"
#define	PREDKEY_SOURCENAME   "sourcename"
#define	PREDKEY_SEEDTYPE   "seedtype"
#define	SEEDPREP   " <to|from|for>"

Enumerations
enum class	Predicate::MANNER {   Predicate::NAME , Predicate::ID , Predicate::WHERE , Predicate::LIKE ,   Predicate::SOURCE }
	Manners in which predicates may be specified. More...

Functions
void	Predicate::construct_predicate_parsers (PianodParser *parser)
static Predicate	Predicate::getFullPredicate (const PianodConnection &conn, const Parsnip::Data &predicate, Filter::Field field)
	Parse a command's predicate and return a matching filter. More...
std::unique_ptr< Filter >	Predicate::getPredicate (const PianodConnection &conn, const Parsnip::Data &predicate, Filter::Field field)
	Return just the filter portion of a predicate, for external use. More...
static ThingieList	Predicate::getPredicateIdItems (const Parsnip::Data &predicate)
	Specialization for getting things by ID. More...
static ThingieList	Predicate::getPartialSpecifiedThings (Predicate &pred, SearchRange search_what)
	Gather a list of assorted things specified by a predicate, which must be present. More...
ThingieList	Predicate::getSpecifiedThings (const PianodConnection &conn, const Parsnip::Data &predicate, SearchRange search_what)
	Gather a list of assorted things specified by a predicate. More...
MusicThingie *	Predicate::getSpecifiedThing (const PianodConnection &conn, const Parsnip::Data &predicate)
	Interpret a request for an unspecified type of thing and return it. More...
static PlaylistList	Predicate::getSpecifiedPlaylistsById (const Parsnip::Data &predicate)
	Get playlist items by id. More...
PlaylistList	Predicate::getSpecifiedPlaylists (const PianodConnection &conn, const Parsnip::Data &predicate)
	Interpret a list of playlists specified by a predicate. More...
PianodPlaylist *	Predicate::getSpecifiedPlaylist (const PianodConnection &conn, const Parsnip::Data &predicate)
	Gather a request for a single playlist and return it. More...
SongList	Predicate::getSpecifiedSongs (const PianodConnection &conn, const Parsnip::Data &predicate, SearchRange search_what)
	Interpret a list of songs specified by a predicate. More...
PianodSong *	Predicate::getSpecifiedSong (const PianodConnection &conn, const Parsnip::Data &predicate)
	Gather a request for a single song and return it. More...

Variables
const LookupTable< MANNER >	Predicate::PredicateManners ({ { "name", MANNER::NAME }, { "id", MANNER::ID }, { "where", MANNER::WHERE }, { "like", MANNER::LIKE } })
	Lookup table for manner names to enumeration. More...
const LookupTable< Filter::Field >	Predicate::SearchFields ({ { "any", Filter::Field::Search }, { "artist", Filter::Field::Artist }, { "album", Filter::Field::Album }, { "song", Filter::Field::Title }, { "playlist", Filter::Field::Playlist }, { "genre", Filter::Field::Genre } })
	Lookup table for optional type to filter field. More...

Detailed Description

Predicate handling.

Predicate parsing and interpretation.

• pianod2

  Author

  Perette Barella

  Date

  2015-10-12

  Copyright

  Copyright (c) 2015-2021 Devious Fish. All rights reserved.

Macro Definition Documentation

PREDKEY_EXPRESSION

#define PREDKEY_EXPRESSION   "expression"

PREDKEY_FULFILLMENT

#define PREDKEY_FULFILLMENT   "fulfill"

PREDKEY_ITEMLIST

#define PREDKEY_ITEMLIST   "items"

PREDKEY_SEEDTYPE

#define PREDKEY_SEEDTYPE   "seedtype"

PREDKEY_SOURCENAME

#define PREDKEY_SOURCENAME   "sourcename"

SEEDPREP

#define SEEDPREP   " <to|from|for>"