Vendor used libs

vendor/github.com/dsnet/compress/bzip2/internal/sais/common.go

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+// Copyright 2015, Joe Tsai. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE.md file.
+
+// Package sais implements a linear time suffix array algorithm.
+package sais
+
+//go:generate go run sais_gen.go byte sais_byte.go
+//go:generate go run sais_gen.go int sais_int.go
+
+// This package ports the C sais implementation by Yuta Mori. The ports are
+// located in sais_byte.go and sais_int.go, which are identical to each other
+// except for the types. Since Go does not support generics, we use generators to
+// create the two files.
+//
+// References:
+//	https://sites.google.com/site/yuta256/sais
+//	https://www.researchgate.net/publication/221313676_Linear_Time_Suffix_Array_Construction_Using_D-Critical_Substrings
+//	https://www.researchgate.net/publication/224176324_Two_Efficient_Algorithms_for_Linear_Time_Suffix_Array_Construction
+
+// ComputeSA computes the suffix array of t and places the result in sa.
+// Both t and sa must be the same length.
+func ComputeSA(t []byte, sa []int) {
+	if len(sa) != len(t) {
+		panic("mismatching sizes")
+	}
+	computeSA_byte(t, sa, 0, len(t), 256)
+}