gno.land/p/nt/bptree/pager/v0⧉

1package pager23import (4	"gno.land/p/nt/bptree/v0"5	"gno.land/p/nt/seqid/v0"6	"gno.land/p/nt/ufmt/v0"7)89func ExamplePager() {10	// Create a new tree and populate it with some key-value pairs.11	var id seqid.ID12	tree := bptree.NewBPTree32()13	for i := 0; i < 42; i++ {14		tree.Set(id.Next().String(), i)15	}1617	// Create a new pager.18	pager1 := NewPager(tree, 7, false)1920	for pn := -1; pn < 8; pn++ {21		page := pager1.GetPage(pn)2223		println(ufmt.Sprintf("## Page %d of %d", page.PageNumber, page.TotalPages))24		for idx, item := range page.Items {25			println(ufmt.Sprintf("- idx=%d key=%s value=%d", idx, item.Key, item.Value))26		}27		println(page.Picker("/"))28		println()29	}3031	// Output:32	// ## Page 0 of 633	// _0_ | [1](?page=1) | [2](?page=2) | … | [6](?page=6)34	//35	// ## Page 0 of 636	// _0_ | [1](?page=1) | [2](?page=2) | … | [6](?page=6)37	//38	// ## Page 1 of 639	// - idx=0 key=0000001 value=040	// - idx=1 key=0000002 value=141	// - idx=2 key=0000003 value=242	// - idx=3 key=0000004 value=343	// - idx=4 key=0000005 value=444	// - idx=5 key=0000006 value=545	// - idx=6 key=0000007 value=646	// **1** | [2](?page=2) | [3](?page=3) | … | [6](?page=6)47	//48	// ## Page 2 of 649	// - idx=0 key=0000008 value=750	// - idx=1 key=0000009 value=851	// - idx=2 key=000000a value=952	// - idx=3 key=000000b value=1053	// - idx=4 key=000000c value=1154	// - idx=5 key=000000d value=1255	// - idx=6 key=000000e value=1356	// [1](?page=1) | **2** | [3](?page=3) | [4](?page=4) | … | [6](?page=6)57	//58	// ## Page 3 of 659	// - idx=0 key=000000f value=1460	// - idx=1 key=000000g value=1561	// - idx=2 key=000000h value=1662	// - idx=3 key=000000j value=1763	// - idx=4 key=000000k value=1864	// - idx=5 key=000000m value=1965	// - idx=6 key=000000n value=2066	// [1](?page=1) | [2](?page=2) | **3** | [4](?page=4) | [5](?page=5) | [6](?page=6)67	//68	// ## Page 4 of 669	// - idx=0 key=000000p value=2170	// - idx=1 key=000000q value=2271	// - idx=2 key=000000r value=2372	// - idx=3 key=000000s value=2473	// - idx=4 key=000000t value=2574	// - idx=5 key=000000v value=2675	// - idx=6 key=000000w value=2776	// [1](?page=1) | [2](?page=2) | [3](?page=3) | **4** | [5](?page=5) | [6](?page=6)77	//78	// ## Page 5 of 679	// - idx=0 key=000000x value=2880	// - idx=1 key=000000y value=2981	// - idx=2 key=000000z value=3082	// - idx=3 key=0000010 value=3183	// - idx=4 key=0000011 value=3284	// - idx=5 key=0000012 value=3385	// - idx=6 key=0000013 value=3486	// [1](?page=1) | … | [3](?page=3) | [4](?page=4) | **5** | [6](?page=6)87	//88	// ## Page 6 of 689	// - idx=0 key=0000014 value=3590	// - idx=1 key=0000015 value=3691	// - idx=2 key=0000016 value=3792	// - idx=3 key=0000017 value=3893	// - idx=4 key=0000018 value=3994	// - idx=5 key=0000019 value=4095	// - idx=6 key=000001a value=4196	// [1](?page=1) | … | [4](?page=4) | [5](?page=5) | **6**97	//98	// ## Page 7 of 699	// [1](?page=1) | … | [5](?page=5) | [6](?page=6) | _7_100}101