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iterations.ts
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iterations.ts
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//================================================================
/**
* @packageDocumentation
* @module std.ranges
*/
//================================================================
import * as base from "../../algorithm/iterations";
import { IForwardContainer } from "../container/IForwardContainer";
import { Pair } from "../../utility/Pair";
import { begin, end } from "../../iterator/factory";
import { size } from "../../iterator/global";
import { equal_to, less } from "../../functional/comparators";
import { UnaryPredicator } from "../../internal/functional/UnaryPredicator";
import { BinaryPredicator } from "../../internal/functional/BinaryPredicator";
import { Comparator } from "../../internal/functional/Comparator";
import { Temporary } from "../../internal/functional/Temporary";
type BinaryPredicatorInferrer<
Range1 extends Array<any> | IForwardContainer<any>,
Range2 extends Array<any> | IForwardContainer<any>>
= BinaryPredicator<IForwardContainer.ValueType<Range1>, IForwardContainer.ValueType<Range2>>;
/* ---------------------------------------------------------
FOR_EACH
--------------------------------------------------------- */
/**
* Apply a function to elements in range.
*
* @param range An iterable ranged container.
* @param fn The function to apply.
*
* @return The function *fn* itself.
*/
export function for_each<
Range extends Array<any> | IForwardContainer<any>,
Func extends (val: IForwardContainer.ValueType<Range>) => any>
(range: Range, fn: Func) :Func
{
return base.for_each(begin(range), end(range), fn);
}
/**
* Apply a function to elements in steps.
*
* @param range An iterable ranged container.
* @param n Steps to maximum advance.
* @param fn The function to apply.
*
* @return Iterator advanced from *first* for *n* steps.
*/
export function for_each_n<
Range extends Array<any> | IForwardContainer<any>,
Func extends (val: IForwardContainer.ValueType<Range>) => any>
(range: Range, n: number, fn: Func): IForwardContainer.IteratorType<Range>
{
return base.for_each_n(begin(range), n, fn);
}
/* ---------------------------------------------------------
AGGREGATE CONDITIONS
--------------------------------------------------------- */
/**
* Test whether all elements meet a specific condition.
*
* @param range An iterable ranged container.
* @param pred A function predicates the specific condition.
*
* @return Whether the *pred* returns always `true` for all elements.
*/
export function all_of<Range extends Array<any> | IForwardContainer<any>>
(range: Range, pred: UnaryPredicator<IForwardContainer.ValueType<Range>>): boolean
{
return base.all_of(begin(range), end(range), pred);
}
/**
* Test whether any element meets a specific condition.
*
* @param range An iterable ranged container.
* @param pred A function predicates the specific condition.
*
* @return Whether the *pred* returns at least a `true` for all elements.
*/
export function any_of<Range extends Array<any> | IForwardContainer<any>>
(range: Range, pred: UnaryPredicator<IForwardContainer.ValueType<Range>>): boolean
{
return base.any_of(begin(range), end(range), pred);
}
/**
* Test whether any element doesn't meet a specific condition.
*
* @param range An iterable ranged container.
* @param pred A function predicates the specific condition.
*
* @return Whether the *pred* doesn't return `true` for all elements.
*/
export function none_of<Range extends Array<any> | IForwardContainer<any>>
(range: Range, pred: UnaryPredicator<IForwardContainer.ValueType<Range>>): boolean
{
return base.none_of(begin(range), end(range), pred);
}
/**
* Test whether two ranges are equal.
*
* @param range1 The 1st iterable ranged container.
* @param range2 The 2nd iterable ranged container.
* @param pred A binary function predicates two arguments are equal.
*
* @return Whether two ranges are equal.
*/
export function equal<
Range1 extends Array<any> | (IForwardContainer<any>),
Range2 extends IForwardContainer.SimilarType<Range1>>
(range1: Range1, range2: Range2): boolean;
/**
* Test whether two ranges are equal.
*
* @param range1 The 1st iterable ranged container.
* @param range2 The 2nd iterable ranged container.
* @param pred A binary function predicates two arguments are equal.
*
* @return Whether two ranges are equal.
*/
export function equal<
Range1 extends Array<any> | IForwardContainer<any>,
Range2 extends Array<any> | IForwardContainer<any>>
(range1: Range1, range2: Range2, pred: BinaryPredicatorInferrer<Range1, Range2>): boolean;
export function equal<
Range1 extends Array<any> | IForwardContainer<any>,
Range2 extends Array<any> | IForwardContainer<any>>
(range1: Range1, range2: Range2, pred: BinaryPredicatorInferrer<Range1, Range2> = <any>equal_to): boolean
{
if (size(range1) !== size(range2))
return false;
else
return base.equal(begin(range1), end(range1), begin(range2), pred);
}
/**
* Compare lexicographically.
*
* @param range1 The 1st iterable ranged container.
* @param range2 The 2nd iterable ranged container.
* @param comp A binary function predicates *x* element would be placed before *y*. When returns `true`, then *x* precedes *y*. Default is {@link less}.
*
* @return Whether the 1st range precedes the 2nd.
*/
export function lexicographical_compare<
Range1 extends Array<any> | IForwardContainer<any>,
Range2 extends IForwardContainer.SimilarType<Range1>>
(range1: Range1, range2: Range2, comp: BinaryPredicatorInferrer<Range1, Range1> = less): boolean
{
return base.lexicographical_compare(begin(range1), end(range1), <Temporary>begin(range2), end(range2), comp);
}
/* ---------------------------------------------------------
FINDERS
--------------------------------------------------------- */
/**
* Find a value in range.
*
* @param range An iterable ranged container.
* @param val The value to find.
*
* @return Iterator to the first element {@link equal to equal_to} the value.
*/
export function find<Range extends Array<any> | IForwardContainer<any>>
(range: Range, val: IForwardContainer.ValueType<Range>): IForwardContainer.IteratorType<Range>
{
return base.find(begin(range), end(range), val);
}
/**
* Find a matched condition in range.
*
* @param range An iterable ranged container.
* @param pred A function predicates the specific condition.
*
* @return Iterator to the first element *pred* returns `true`.
*/
export function find_if<Range extends Array<any> | IForwardContainer<any>>
(range: Range, pred: UnaryPredicator<IForwardContainer.ValueType<Range>>): IForwardContainer.IteratorType<Range>
{
return base.find_if(begin(range), end(range), pred);
}
/**
* Find a mismatched condition in range.
*
* @param range An iterable ranged container.
* @param pred A function predicates the specific condition.
*
* @return Iterator to the first element *pred* returns `false`.
*/
export function find_if_not<Range extends Array<any> | IForwardContainer<any>>
(range: Range, pred: UnaryPredicator<IForwardContainer.ValueType<Range>>): IForwardContainer.IteratorType<Range>
{
return base.find_if_not(begin(range), end(range), pred);
}
/**
* Find the last sub range.
*
* @param range1 The 1st iterable ranged container.
* @param range2 The 2nd iterable ranged container.
*
* @return Iterator to the first element of the last sub range.
*/
export function find_end<
Range1 extends Array<any> | IForwardContainer<any>,
Range2 extends IForwardContainer.SimilarType<Range1>>
(range1: Range1, range2: Range2): IForwardContainer.IteratorType<Range1>;
/**
* Find the last sub range.
*
* @param range1 The 1st iterable ranged container.
* @param range2 The 2nd iterable ranged container.
* @param pred A binary function predicates two arguments are equal.
*
* @return Iterator to the first element of the last sub range.
*/
export function find_end<
Range1 extends Array<any> | IForwardContainer<any>,
Range2 extends Array<any> | IForwardContainer<any>>
(
range1: Range1,
range2: Range2,
pred: BinaryPredicatorInferrer<Range1, Range2>
): IForwardContainer.IteratorType<Range1>;
export function find_end<
Range1 extends Array<any> | IForwardContainer<any>,
Range2 extends Array<any> | IForwardContainer<any>>
(
range1: Range1,
range2: Range2,
pred: BinaryPredicatorInferrer<Range1, Range2> = <any>equal_to
): IForwardContainer.IteratorType<Range1>
{
return base.find_end(begin(range1), end(range1), begin(range2), end(range2), pred);
}
/**
* Find the first sub range.
*
* @param range1 The 1st iterable ranged container.
* @param range2 The 2nd iterable ranged container.
*
* @return Iterator to the first element of the first sub range.
*/
export function find_first_of<
Range1 extends Array<any> | IForwardContainer<any>,
Range2 extends IForwardContainer.SimilarType<Range1>>
(range1: Range1, range2: Range2): IForwardContainer.IteratorType<Range1>;
/**
* Find the first sub range.
*
* @param range1 The 1st iterable ranged container.
* @param range2 The 2nd iterable ranged container.
* @param pred A binary function predicates two arguments are equal.
*
* @return Iterator to the first element of the first sub range.
*/
export function find_first_of<
Range1 extends Array<any> | IForwardContainer<any>,
Range2 extends Array<any> | IForwardContainer<any>>
(
range1: Range1,
range2: Range2,
pred: BinaryPredicatorInferrer<Range1, Range2>
): IForwardContainer.IteratorType<Range1>;
export function find_first_of<
Range1 extends Array<any> | IForwardContainer<any>,
Range2 extends Array<any> | IForwardContainer<any>>
(
range1: Range1,
range2: Range2,
pred: BinaryPredicatorInferrer<Range1, Range2> = <any>equal_to
): IForwardContainer.IteratorType<Range1>
{
return base.find_first_of(begin(range1), end(range1), begin(range2), end(range2), pred);
}
/**
* Find the first adjacent element.
*
* @param range An iterable ranged container.
* @param pred A binary function predicates two arguments are equal. Default is {@link equal_to}.
*
* @return Iterator to the first element of adjacent find.
*/
export function adjacent_find<Range extends Array<any> | IForwardContainer<any>>
(
range: Range,
pred: Comparator<IForwardContainer.ValueType<Range>> = equal_to
): IForwardContainer.IteratorType<Range>
{
return base.adjacent_find(begin(range), end(range), pred);
}
/**
* Search sub range.
*
* @param range1 The 1st iterable ranged container.
* @param range2 The 2nd iterable ranged container.
*
* @return Iterator to the first element of the sub range.
*/
export function search<
Range1 extends Array<any> | IForwardContainer<any>,
Range2 extends Array<any> | IForwardContainer.SimilarType<Range1>>
(range1: Range1, range2: Range2): IForwardContainer.IteratorType<Range1>;
/**
* Search sub range.
*
* @param range1 The 1st iterable ranged container.
* @param range2 The 2nd iterable ranged container.
* @param pred A binary function predicates two arguments are equal.
*
* @return Iterator to the first element of the sub range.
*/
export function search<
Range1 extends Array<any> | IForwardContainer<any>,
Range2 extends Array<any> | IForwardContainer<any>>
(
range1: Range1,
range2: Range2,
pred: BinaryPredicatorInferrer<Range1, Range2>
): IForwardContainer.IteratorType<Range1>;
export function search<
Range1 extends Array<any> | IForwardContainer<any>,
Range2 extends Array<any> | IForwardContainer<any>>
(
range1: Range1,
range2: Range2,
pred: BinaryPredicatorInferrer<Range1, Range2> = <any>equal_to
): IForwardContainer.IteratorType<Range1>
{
return base.search(begin(range1), end(range1), begin(range2), end(range2), pred);
}
/**
* Search specific and repeated elements.
*
* @param range An iterable ranged container.
* @param count Count to be repeated.
* @param val Value to search.
* @param pred A binary function predicates two arguments are equal. Default is {@link equal_to}.
*
* @return Iterator to the first element of the repetition.
*/
export function search_n<Range extends Array<any> | IForwardContainer<any>>
(
range: Range,
count: number, val: IForwardContainer.ValueType<Range>,
pred: Comparator<IForwardContainer.ValueType<Range>> = equal_to
): IForwardContainer.IteratorType<Range>
{
return base.search_n(begin(range), end(range), count, val, pred);
}
/**
* Find the first mistmached position between two ranges.
*
* @param range1 The 1st iterable ranged container.
* @param range2 The 2nd iterable ranged container.
*
* @return A {@link Pair} of mismatched positions.
*/
export function mismatch<
Range1 extends Array<any> | IForwardContainer<any>,
Range2 extends Array<any> | IForwardContainer.SimilarType<Range1>>
(range1: Range1, range2: Range2): Pair<IForwardContainer.IteratorType<Range1>, IForwardContainer.IteratorType<Range2>>;
/**
* Find the first mistmached position between two ranges.
*
* @param range1 The 1st iterable ranged container.
* @param range2 The 2nd iterable ranged container.
* @param pred A binary function predicates two arguments are equal.
*
* @return A {@link Pair} of mismatched positions.
*/
export function mismatch<
Range1 extends Array<any> | IForwardContainer<any>,
Range2 extends Array<any> | IForwardContainer<any>>
(
range1: Range1,
range2: Range2,
pred: BinaryPredicatorInferrer<Range1, Range2>
): Pair<IForwardContainer.IteratorType<Range1>, IForwardContainer.IteratorType<Range2>>;
export function mismatch<
Range1 extends Array<any> | IForwardContainer<any>,
Range2 extends Array<any> | IForwardContainer<any>>
(
range1: Range1,
range2: Range2,
pred: BinaryPredicatorInferrer<Range1, Range2> = <any>equal_to
): Pair<IForwardContainer.IteratorType<Range1>, IForwardContainer.IteratorType<Range2>>
{
if (size(range1) === size(range2))
return base.mismatch(begin(range1), end(range1), begin(range2), pred);
let limit: number = Math.min(size(range1), size(range2));
let x: IForwardContainer.IteratorType<Range1> = begin(range1);
let y: IForwardContainer.IteratorType<Range2> = begin(range2);
for (let i: number = 0; i < limit; ++i)
{
if (pred(x.value, y.value) === false)
break;
x = x.next();
y = y.next();
}
return new Pair(x, y);
}
/* ---------------------------------------------------------
COUNTERS
--------------------------------------------------------- */
/**
* Count matched value in range.
*
* @param range An iterable ranged container.
* @param val The value to count.
*
* @return The matched count.
*/
export function count<Range extends Array<any> | IForwardContainer<any>>
(range: Range, val: IForwardContainer.ValueType<Range>): number
{
return base.count(begin(range), end(range), val);
}
/**
* Count matched condition in range.
*
* @param range An iterable ranged container.
* @param pred A function predicates the specific condition.
*
* @return The matched count.
*/
export function count_if<Range extends Array<any> | IForwardContainer<any>>
(range: Range, pred: UnaryPredicator<IForwardContainer.ValueType<Range>>): number
{
return base.count_if(begin(range), end(range), pred);
}