#include "match_struct.h"

static int _LinearFindFunction(RegexCapture* capture, size_t* find)
{
	if (capture->number == *find) {
		// Equal
		return 0;
	} else if (capture->number < *find) {
		// Look to the right
		return 1;
	} else {
		// Look to the left
		return -1;
	}
}

bool RegexMatch_HaveNumberedCapture(RegexMatch* match, size_t number)
{
	if (match == NULL) {
		return false;
	}

	size_t capture_index = DynamicArray_FindFunctionLinear(
		&match->captures,
		(DynamicArrayLinearFindFunction) _LinearFindFunction,
		&number
	);

	return capture_index != SIZE_MAX;
}

RegexCapture* RegexMatch_GetNumberedCapture(RegexMatch* match, size_t number)
{
	if (match == NULL) {
		return false;
	}

	size_t capture_index = DynamicArray_FindFunctionLinear(
		&match->captures,
		(DynamicArrayLinearFindFunction) _LinearFindFunction,
		&number
	);

	return DynamicArray_GetPointer(&match->captures, capture_index);
}