/vqdr/trunk : contents of src/libvqdr/function/function

: (revision 64)

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1 by Gustav Hartvigsson * Initial code - far from done	1	using Gee;
	2
	3	using VQDR.Expression;
64 by Gustav Hartvigsson [General] Major refactoring. Utils -> Vee nenaming.	4	using Vee;
1 by Gustav Hartvigsson * Initial code - far from done	5
	6	namespace VQDR.Expression {
	7	public abstract class FunctionToken : Token {
	8	protected FunctionToken () {
	9	base (0);
	10	}
	11
26 by Gustav Hartvigsson * Fixed the "allowed function token type" map...	12	private struct Entry {
	13	public string key;
	14	public Type? val;
	15	}
	16
	17
1 by Gustav Hartvigsson * Initial code - far from done	18	// We only store the type, as that is what is important.
	19	private static Gee.HashMap<string, Type?> _allowed_functions;
	20
57 by Gustav Hartvigsson Made sure that no text rows exeed 80 columns.	21	// +1 so that I can still use int64.MIN_VALUE.
	22	protected const int64 UNDEFINED = int64.MIN + 1;
1 by Gustav Hartvigsson * Initial code - far from done	23	/** Right arrow */
	24	protected const string CH_RARR = "\u2192";
	25	/** Left arrow */
	26	protected const string CH_LARR = "\u2190";
	27	/** Round up open bracket */
	28	protected const string CH_RUP_OP = "\u2308";
	29	/** Round up closed bracket */
	30	protected const string CH_RUP_CL = "\u2309";
	31	/** Round down open bracket */
	32	protected const string CH_RDN_OP = "\u230a";
	33	/** Round down closed bracket */
	34	protected const string CH_RDN_CL = "\u230b";
	35	/** Absolute open bracket */
	36	protected const string CH_ABS_OP = "\|";
	37	/** Absolute closed bracket */
	38	protected const string CH_ABS_CL = "\|";
	39	/** Greater than */
	40	protected const string CH_GT = ">";
	41	/** Lower than */
	42	protected const string CH_LT = "<";
	43	/** Equal */
	44	protected const string CH_EQUAL = "=";
	45
	46	/** Begin of a complex result */
	47	protected const string SYM_BEGIN = "[";
	48	/** End of a complex result */
	49	protected const string SYM_END = "]";
	50	/** Begin of a complex result, alternative */
	51	protected const string SYM_BEGIN_ALT = "{";
	52	/** End of a complex result, alternative */
	53	protected const string SYM_END_ALT = "}";
	54	/** Separator for different roll result */
	55	protected const string SYM_SEP = ",";
	56	/** Separator for different value of same roll */
	57	protected const string SYM_SEP_SAME = ":";
	58	/** Separator for overall (fumble, critical, botch, glitch) */
	59	protected const string SYM_SEP_ = "\u2261"; //"=" (with 3 lines)
	60	/** Denotes a success */
	61	protected const string SYM_SUCCESS = "!";
	62	/** Denotes a failure */
	63	protected const string SYM_FAILURE = "*";
	64	/** Denotes an extra result */
	65	protected const string SYM_EXTRA = "!";
	66	/** Denotes a selected result */
	67	protected const string SYM_SELECTED = "!";
	68	/** Separator for exploding rolls */
	69	protected const string SYM_EXPLODE = "\u00bb"; //">>"
	70
	71	/** Truncated output: ellipsis */
	72	protected const string SYM_TRUNK_PART_ELLIPSIS = "\u2026"; //"..."
	73	/** Truncated output: equal */
	74	protected const string SYM_TRUNK_PART_EQUAL = CH_EQUAL; //"="
	75	/** Truncated output: begin */
57 by Gustav Hartvigsson Made sure that no text rows exeed 80 columns.	76	protected const string SYM_TRUNK_BEGIN = SYM_BEGIN
	77	+ SYM_TRUNK_PART_ELLIPSIS
	78	+ SYM_TRUNK_PART_EQUAL; //"[...="
1 by Gustav Hartvigsson * Initial code - far from done	79	/** Truncated output: end */
	80	protected const string SYM_TRUNK_END = SYM_END; //"]"
	81
	82	construct {
14 by Gustav Hartvigsson * Use enum instead of static values for the priority of operations.	83	this.priority = Prio.FUNCTION;
1 by Gustav Hartvigsson * Initial code - far from done	84	}
1 by Gustav Hartvigsson * Initial code - far from done	85
26 by Gustav Hartvigsson * Fixed the "allowed function token type" map...	86
1 by Gustav Hartvigsson * Initial code - far from done	87	/**
62 by Gustav Hartvigsson various changes	88	* Initialise the right function token by it's name.
1 by Gustav Hartvigsson * Initial code - far from done	89	*
	90	* @param token Token of the Function.
	91	* @param position Token position.
	92	* @return An instance representing the function, or @c null if not found.
	93	*/
52.1.3 by Gustav Hartvigsson int -> int32	94	public static FunctionToken? init_token (string token, int32 position) {
26 by Gustav Hartvigsson * Fixed the "allowed function token type" map...	95
	96	if (_allowed_functions == null) {
62 by Gustav Hartvigsson various changes	97	// Initialise the HashMap if it is not created.
26 by Gustav Hartvigsson * Fixed the "allowed function token type" map...	98	_allowed_functions = new Gee.HashMap<string, Type?> ();
	99
	100	Entry[] entries = {
	101	{"round_up", typeof (RoundUpFunctionToken)},
	102	{"round_down", typeof (RoundDownFunctionToken)},
35 by Gustav Hartvigsson a few things: FastNumbers, simplifications and AbstractPoolToken.	103	{"roll_and_keep", typeof (RollAndKeepFunctionToken)},
26 by Gustav Hartvigsson * Fixed the "allowed function token type" map...	104	{null, null}
	105	};
	106
	107	foreach (Entry e in entries) {
	108	_allowed_functions.@set (e.key, e.val);
	109	}
	110
	111	}
	112
1 by Gustav Hartvigsson * Initial code - far from done	113	// We get the token type.
	114	Type? t = _allowed_functions.@get (token.down ());
	115
	116	if (t != null) {
	117	// Construct a new instance of the token.
45 by Gustav Hartvigsson * woopes.	118	return (FunctionToken) GLib.Object.@new (t, null, null);
1 by Gustav Hartvigsson * Initial code - far from done	119	}
45 by Gustav Hartvigsson * woopes.	120	return null;
1 by Gustav Hartvigsson * Initial code - far from done	121	}
	122
	123	/**
	124	* Add a FunctionToken Type to the list of allowed functions.
	125	*
	126	* Note: The Type must be derived from FunctionToken, as there is an
	127	* assert that chkecks.
	128	*/
	129	public static void add_function (string token, Type t) {
	130	assert (t.is_a (typeof (FunctionToken)) == true);
	131	_allowed_functions.@set (token, t);
	132	}
	133
	134	public static string get_function_name (Type t) {
	135	assert (t.is_a (typeof (FunctionToken)) == true);
	136	string ret_val = null;
	137
	138	_allowed_functions.map_iterator ().@foreach ((k,v) => {
	139	if (v == t) {
	140	ret_val = k;
	141	return false;
	142	}
	143	return true;
	144	});
	145
	146	return ret_val;
	147	}
	148
12.1.1 by Gustav Hartvigsson * Switch to using FastNumber instead of something else.	149	protected FastNumber get_optional_child_raw_result (Context instance,
52.1.3 by Gustav Hartvigsson int -> int32	150	int32 index,
52.1.2 by Gustav Hartvigsson no more 's	151	int64 default_result)
1 by Gustav Hartvigsson * Initial code - far from done	152	throws GLib.Error {
	153	Token? tmp_roll = get_child (index);
	154
	155	if (tmp_roll != null) {
	156	tmp_roll.evaluate (instance);
	157	return tmp_roll.result_value;
	158	} else {
12.1.2 by Gustav Hartvigsson * Fastnumber is now a struct,	159	return FastNumber.raw (default_result);
1 by Gustav Hartvigsson * Initial code - far from done	160	}
26 by Gustav Hartvigsson * Fixed the "allowed function token type" map...	161
1 by Gustav Hartvigsson * Initial code - far from done	162	}
	163	}
	164	}