Golang Letters.Len方法代码示例

//line sw_type.got:17
func drawSWTableLetters(rSeq, qSeq alphabet.Letters, index alphabet.Index, table []int, a [][]int) {
	tw := tabwriter.NewWriter(os.Stdout, 0, 0, 0, ' ', tabwriter.AlignRight|tabwriter.Debug)
	fmt.Printf("rSeq: %s\n", rSeq)
	fmt.Printf("qSeq: %s\n", qSeq)
	fmt.Fprint(tw, "\tqSeq\t")
	for _, l := range qSeq {
		fmt.Fprintf(tw, "%c\t", l)
	}
	fmt.Fprintln(tw)

	r, c := rSeq.Len()+1, qSeq.Len()+1
	fmt.Fprint(tw, "rSeq\t")
	for i := 0; i < r; i++ {
		if i != 0 {
			fmt.Fprintf(tw, "%c\t", rSeq[i-1])
		}

		for j := 0; j < c; j++ {
			p := pointerSWLetters(rSeq, qSeq, i, j, table, index, a, c)
			fmt.Fprintf(tw, "%s %3v\t", p, table[i*c+j])
		}
		fmt.Fprintln(tw)
	}
	tw.Flush()
}

//line sw_affine_type.got:17
func drawSWAffineTableLetters(rSeq, qSeq alphabet.Letters, index alphabet.Index, table [][3]int, a SWAffine) {
	tw := tabwriter.NewWriter(os.Stdout, 0, 0, 0, ' ', tabwriter.AlignRight|tabwriter.Debug)
	fmt.Printf("rSeq: %s\n", rSeq)
	fmt.Printf("qSeq: %s\n", qSeq)
	for l := 0; l < 3; l++ {
		fmt.Fprintf(tw, "%c\tqSeq\t", "MUL"[l])
		for _, l := range qSeq {
			fmt.Fprintf(tw, "%c\t", l)
		}
		fmt.Fprintln(tw)

		r, c := rSeq.Len()+1, qSeq.Len()+1
		fmt.Fprint(tw, "rSeq\t")
		for i := 0; i < r; i++ {
			if i != 0 {
				fmt.Fprintf(tw, "%c\t", rSeq[i-1])
			}

			for j := 0; j < c; j++ {
				p := pointerSWAffineLetters(rSeq, qSeq, i, j, l, table, index, a, c)
				var vi interface{}
				if vi = table[i*c+j][l]; vi == minInt {
					vi = "-Inf"
				}
				fmt.Fprintf(tw, "%s % 4v\t", p, vi)
			}
			fmt.Fprintln(tw)
		}
		fmt.Fprintln(tw)
	}
	tw.Flush()
}

func (a SWAffine) alignLetters(rSeq, qSeq alphabet.Letters, alpha alphabet.Alphabet) ([]feat.Pair, error) {
	let := len(a.Matrix)
	if let < alpha.Len() {
		return nil, ErrMatrixWrongSize{Size: let, Len: alpha.Len()}
	}
	la := make([]int, 0, let*let)
	for _, row := range a.Matrix {
		if len(row) != let {
			return nil, ErrMatrixNotSquare
		}
		la = append(la, row...)
	}
	r, c := rSeq.Len()+1, qSeq.Len()+1
	table := make([][3]int, r*c)

	var (
		index = alpha.LetterIndex()

		maxS, maxI, maxJ = 0, 0, 0

		score  int
		scores [3]int
	)

	for i := 1; i < r; i++ {
		for j := 1; j < c; j++ {
			var (
				rVal = index[rSeq[i-1]]
				qVal = index[qSeq[j-1]]
			)
			if rVal < 0 || qVal < 0 {
				continue
			}
			p := i*c + j
			scores = [3]int{
				diag: table[p-c-1][diag],
				up:   table[p-c-1][up],
				left: table[p-c-1][left],
			}
			score = max(&scores)
			matched := score == scores[diag]
			score += la[rVal*let+qVal]
			switch {
			case score > 0:
				if score >= maxS && matched {
					maxS, maxI, maxJ = score, i, j
				}
			default:
				score = 0
			}
			table[p][diag] = score

			score = max2(
				table[p-c][diag]+a.GapOpen+la[rVal*let],
				table[p-c][up]+la[rVal*let],
			)
			if score < 0 {
				score = 0
			}
			table[p][up] = score

			score = max2(
				table[p-1][diag]+a.GapOpen+la[qVal],
				table[p-1][left]+la[qVal],
			)
			if score < 0 {
				score = 0
			}
			table[p][left] = score
		}
	}
	if debugSmithAffine {
		drawSWAffineTableLetters(rSeq, qSeq, index, table, a)
	}

	var aln []feat.Pair
	score, last, layer := 0, diag, diag
	i, j := maxI, maxJ
loop:
	for i > 0 && j > 0 {
		var (
			rVal = index[rSeq[i-1]]
			qVal = index[qSeq[j-1]]
		)
		if rVal < 0 || qVal < 0 {
			continue
		}
		switch p := i*c + j; table[p][layer] {
		case 0:
			break loop
		case table[p-c][up] + la[rVal*let]:
			if last != up && p != len(table)-1 {
				aln = append(aln, &featPair{
					a:     feature{start: i, end: maxI},
					b:     feature{start: j, end: maxJ},
					score: score,
				})
				maxI, maxJ = i, j
				score = 0
			}
//.........这里部分代码省略.........

func (a SW) alignLetters(rSeq, qSeq alphabet.Letters, alpha alphabet.Alphabet) ([]feat.Pair, error) {
	let := len(a)
	la := make([]int, 0, let*let)
	for _, row := range a {
		if len(row) != let {
			return nil, ErrMatrixNotSquare
		}
		la = append(la, row...)
	}
	r, c := rSeq.Len()+1, qSeq.Len()+1
	table := make([]int, r*c)

	var (
		index = alpha.LetterIndex()

		maxS, maxI, maxJ = 0, 0, 0

		score  int
		scores [3]int
	)

	for i := 1; i < r; i++ {
		for j := 1; j < c; j++ {
			var (
				rVal = index[rSeq[i-1]]
				qVal = index[qSeq[j-1]]
			)
			if rVal < 0 || qVal < 0 {
				continue
			}
			p := i*c + j
			scores = [3]int{
				diag: table[p-c-1] + la[rVal*let+qVal],
				up:   table[p-c] + la[rVal*let],
				left: table[p-1] + la[qVal],
			}
			score = max(&scores)
			switch {
			case score > 0:
				if score >= maxS && score == scores[diag] {
					maxS, maxI, maxJ = score, i, j
				}
			default:
				score = 0
			}
			table[p] = score
		}
	}
	if debugSmith {
		drawSWTableLetters(rSeq, qSeq, index, table, a)
	}

	var aln []feat.Pair
	score, last := 0, diag
	i, j := maxI, maxJ
loop:
	for i > 0 && j > 0 {
		var (
			rVal = index[rSeq[i-1]]
			qVal = index[qSeq[j-1]]
		)
		if rVal < 0 || qVal < 0 {
			continue
		}
		switch p := i*c + j; table[p] {
		case 0:
			break loop
		case table[p-c-1] + la[rVal*let+qVal]:
			if last != diag {
				aln = append(aln, &featPair{
					a:     feature{start: i, end: maxI},
					b:     feature{start: j, end: maxJ},
					score: score,
				})
				maxI, maxJ = i, j
				score = 0
			}
			score += table[p] - table[p-c-1]
			i--
			j--
			last = diag
		case table[p-c] + la[rVal*let]:
			if last != up {
				aln = append(aln, &featPair{
					a:     feature{start: i, end: maxI},
					b:     feature{start: j, end: maxJ},
					score: score,
				})
				maxI, maxJ = i, j
				score = 0
			}
			score += table[p] - table[p-c]
			i--
			last = up
		case table[p-1] + la[qVal]:
			if last != left {
				aln = append(aln, &featPair{
					a:     feature{start: i, end: maxI},
					b:     feature{start: j, end: maxJ},
					score: score,
//.........这里部分代码省略.........

func (a NWAffine) alignLetters(rSeq, qSeq alphabet.Letters, alpha alphabet.Alphabet) ([]feat.Pair, error) {
	let := len(a.Matrix)
	la := make([]int, 0, let*let)
	for _, row := range a.Matrix {
		if len(row) != let {
			return nil, ErrMatrixNotSquare
		}
		la = append(la, row...)
	}

	index := alpha.LetterIndex()
	r, c := rSeq.Len()+1, qSeq.Len()+1
	table := make([][3]int, r*c)
	table[0] = [3]int{
		diag: 0,
		up:   minInt,
		left: minInt,
	}
	table[1] = [3]int{
		diag: minInt,
		up:   minInt,
		left: a.GapOpen + la[index[qSeq[0]]],
	}
	for j := range table[2:c] {
		table[j+2] = [3]int{
			diag: minInt,
			up:   minInt,
			left: table[j+1][left] + la[index[qSeq[j+1]]],
		}
	}
	table[c] = [3]int{
		diag: minInt,
		up:   a.GapOpen + la[index[rSeq[0]]*let],
		left: minInt,
	}
	for i := 2; i < r; i++ {
		table[i*c] = [3]int{
			diag: minInt,
			up:   table[(i-1)*c][up] + la[index[rSeq[i-1]]*let],
			left: minInt,
		}
	}

	var scores [3]int
	for i := 1; i < r; i++ {
		for j := 1; j < c; j++ {
			var (
				rVal = index[rSeq[i-1]]
				qVal = index[qSeq[j-1]]
			)
			if rVal < 0 || qVal < 0 {
				continue
			}
			p := i*c + j
			scores = [3]int{
				diag: table[p-c-1][diag],
				up:   table[p-c-1][up],
				left: table[p-c-1][left],
			}
			table[p][diag] = max(&scores) + la[rVal*let+qVal]

			table[p][up] = max2(
				add(table[p-c][diag], a.GapOpen+la[rVal*let]),
				add(table[p-c][up], la[rVal*let]),
			)

			table[p][left] = max2(
				add(table[p-1][diag], a.GapOpen+la[qVal]),
				add(table[p-1][left], la[qVal]),
			)
		}
	}
	if debugNeedleAffine {
		drawNWAffineTableLetters(rSeq, qSeq, index, table, a)
	}

	var (
		aln   []feat.Pair
		layer int
	)
	score, last := 0, diag
	i, j := r-1, c-1
	t := table[i*c+j]
	best := t[0]
	for i, s := range t[1:] {
		if s > best {
			best, layer = s, i+1
		}
	}
	maxI, maxJ := i, j
	for i > 0 && j > 0 {
		var (
			rVal = index[rSeq[i-1]]
			qVal = index[qSeq[j-1]]
		)
		if rVal < 0 || qVal < 0 {
			continue
		}
		switch p := i*c + j; table[p][layer] {
		case table[p-c][up] + la[rVal*let]:
//.........这里部分代码省略.........

func (a Fitted) alignLetters(rSeq, qSeq alphabet.Letters, alpha alphabet.Alphabet) ([]feat.Pair, error) {
	let := len(a)
	la := make([]int, 0, let*let)
	for _, row := range a {
		if len(row) != let {
			return nil, ErrMatrixNotSquare
		}
		la = append(la, row...)
	}

	index := alpha.LetterIndex()
	r, c := rSeq.Len()+1, qSeq.Len()+1
	table := make([]int, r*c)
	for j := range table[1:c] {
		table[j+1] = table[j] + la[index[qSeq[j]]]
	}

	for i := 1; i < r; i++ {
		for j := 1; j < c; j++ {
			var (
				rVal = index[rSeq[i-1]]
				qVal = index[qSeq[j-1]]
			)
			if rVal < 0 {
				return nil, fmt.Errorf("align: illegal letter %q at position %d in rSeq", rSeq[i-1], i-1)
			}
			if qVal < 0 {
				return nil, fmt.Errorf("align: illegal letter %q at position %d in qSeq", qSeq[j-1], j-1)
			}
			p := i*c + j

			diagScore := table[p-c-1] + la[rVal*let+qVal]
			upScore := table[p-c] + la[rVal*let]
			leftScore := table[p-1] + la[qVal]

			table[p] = max3(diagScore, upScore, leftScore)
		}
	}
	if debugFitted {
		drawFittedTableLetters(rSeq, qSeq, index, table, a)
	}

	var aln []feat.Pair
	score, last := 0, diag
	max := minInt
	var (
		i    int
		j    = c - 1
		qVal int
	)
	for {
		qVal = index[qSeq[j-1]]
		if qVal >= 0 {
			break
		}
		j--
	}
	for y := 1; y < r; y++ {
		v := table[(y*c)+c-1]
		rVal := index[rSeq[y-1]]
		if rVal < 0 {
			continue
		}
		if v >= max && la[rVal*let+qVal] >= 0 {
			i = y
			max = v
		}
	}
	maxI, maxJ := i, j
	for i > 0 && j > 0 {
		var (
			rVal = index[rSeq[i-1]]
			qVal = index[qSeq[j-1]]
		)
		switch p := i*c + j; table[p] {
		case table[p-c-1] + la[rVal*let+qVal]:
			if last != diag {
				aln = append(aln, &featPair{
					a:     feature{start: i, end: maxI},
					b:     feature{start: j, end: maxJ},
					score: score,
				})
				maxI, maxJ = i, j
				score = 0
			}
			score += table[p] - table[p-c-1]
			i--
			j--
			last = diag
		case table[p-c] + la[rVal*let]:
			if last != up && p != len(table)-1 {
				aln = append(aln, &featPair{
					a:     feature{start: i, end: maxI},
					b:     feature{start: j, end: maxJ},
					score: score,
				})
				maxI, maxJ = i, j
				score = 0
			}
			score += table[p] - table[p-c]
//.........这里部分代码省略.........

func (a FittedAffine) alignLetters(rSeq, qSeq alphabet.Letters, alpha alphabet.Alphabet) ([]feat.Pair, error) {
	let := len(a.Matrix)
	la := make([]int, 0, let*let)
	for _, row := range a.Matrix {
		if len(row) != let {
			return nil, ErrMatrixNotSquare
		}
		la = append(la, row...)
	}

	index := alpha.LetterIndex()
	r, c := rSeq.Len()+1, qSeq.Len()+1
	table := make([][3]int, r*c)
	table[0] = [3]int{
		diag: 0,
		up:   minInt,
		left: minInt,
	}
	table[1] = [3]int{
		diag: minInt,
		up:   minInt,
	}
	table[1][left] = a.GapOpen + la[index[qSeq[0]]]
	for j := range table[2:c] {
		table[j+2] = [3]int{
			diag: minInt,
			up:   minInt,
			left: table[j+1][left] + la[index[qSeq[j+1]]],
		}
	}
	table[c] = [3]int{
		diag: minInt,
		left: minInt,
	}
	for i := 2; i < r; i++ {
		table[i*c] = [3]int{
			diag: minInt,
			left: minInt,
		}
	}

	for i := 1; i < r; i++ {
		for j := 1; j < c; j++ {
			var (
				rVal = index[rSeq[i-1]]
				qVal = index[qSeq[j-1]]
			)
			if rVal < 0 {
				return nil, fmt.Errorf("align: illegal letter %q at position %d in rSeq", rSeq[i-1], i-1)
			}
			if qVal < 0 {
				return nil, fmt.Errorf("align: illegal letter %q at position %d in qSeq", qSeq[j-1], j-1)
			}
			p := i*c + j

			diagScore := table[p-c-1][diag]
			upScore := table[p-c-1][up]
			leftScore := table[p-c-1][left]

			table[p][diag] = max3(diagScore, upScore, leftScore) + la[rVal*let+qVal]

			table[p][up] = max2(
				add(table[p-c][diag], a.GapOpen+la[rVal*let]),
				add(table[p-c][up], la[rVal*let]),
			)

			table[p][left] = max2(
				add(table[p-1][diag], a.GapOpen+la[qVal]),
				add(table[p-1][left], la[qVal]),
			)
		}
	}
	if debugFittedAffine {
		drawFittedAffineTableLetters(rSeq, qSeq, index, table, a)
	}

	var aln []feat.Pair
	score, last, layer := 0, diag, diag
	var (
		i int
		j = c - 1
	)
	max := minInt
	for y := 1; y < r; y++ {
		v := table[(y*c)+c-1][diag]
		if v >= max {
			i = y
			max = v
		}
	}
	maxI, maxJ := i, j
	for i > 0 && j > 0 {
		var (
			rVal = index[rSeq[i-1]]
			qVal = index[qSeq[j-1]]
		)
		switch p := i*c + j; table[p][layer] {
		case table[p-c][up] + la[rVal*let]:
			if last != up && p != len(table)-1 {
				aln = append(aln, &featPair{
//.........这里部分代码省略.........

func (a NW) alignLetters(rSeq, qSeq alphabet.Letters, alpha alphabet.Alphabet) ([]feat.Pair, error) {
	let := len(a)
	if let < alpha.Len() {
		return nil, ErrMatrixWrongSize{Size: let, Len: alpha.Len()}
	}
	la := make([]int, 0, let*let)
	for _, row := range a {
		if len(row) != let {
			return nil, ErrMatrixNotSquare
		}
		la = append(la, row...)
	}

	index := alpha.LetterIndex()
	r, c := rSeq.Len()+1, qSeq.Len()+1
	table := make([]int, r*c)
	for j := range table[1:c] {
		table[j+1] = table[j] + la[index[qSeq[j]]]
	}
	for i := 1; i < r; i++ {
		table[i*c] = table[(i-1)*c] + la[index[rSeq[i-1]]*let]
	}

	var scores [3]int
	for i := 1; i < r; i++ {
		for j := 1; j < c; j++ {
			var (
				rVal = index[rSeq[i-1]]
				qVal = index[qSeq[j-1]]
			)
			if rVal < 0 || qVal < 0 {
				continue
			}
			p := i*c + j
			scores = [3]int{
				diag: table[p-c-1] + la[rVal*let+qVal],
				up:   table[p-c] + la[rVal*let],
				left: table[p-1] + la[qVal],
			}
			table[p] = max(&scores)
		}
	}
	if debugNeedle {
		drawNWTableLetters(rSeq, qSeq, index, table, a)
	}

	var aln []feat.Pair
	score, last := 0, diag
	i, j := r-1, c-1
	maxI, maxJ := i, j
	for i > 0 && j > 0 {
		var (
			rVal = index[rSeq[i-1]]
			qVal = index[qSeq[j-1]]
		)
		if rVal < 0 || qVal < 0 {
			continue
		}
		switch p := i*c + j; table[p] {
		case table[p-c-1] + la[rVal*let+qVal]:
			if last != diag {
				aln = append(aln, &featPair{
					a:     feature{start: i, end: maxI},
					b:     feature{start: j, end: maxJ},
					score: score,
				})
				maxI, maxJ = i, j
				score = 0
			}
			score += table[p] - table[p-c-1]
			i--
			j--
			last = diag
		case table[p-c] + la[rVal*let]:
			if last != up && p != len(table)-1 {
				aln = append(aln, &featPair{
					a:     feature{start: i, end: maxI},
					b:     feature{start: j, end: maxJ},
					score: score,
				})
				maxI, maxJ = i, j
				score = 0
			}
			score += table[p] - table[p-c]
			i--
			last = up
		case table[p-1] + la[qVal]:
			if last != left && p != len(table)-1 {
				aln = append(aln, &featPair{
					a:     feature{start: i, end: maxI},
					b:     feature{start: j, end: maxJ},
					score: score,
				})
				maxI, maxJ = i, j
				score = 0
			}
			score += table[p] - table[p-1]
			j--
			last = left
		default:
//.........这里部分代码省略.........