// match runs the machine over the input starting at pos.
// It reports whether a match was found.
// If so, m.matchcap holds the submatch information.
func (m *machine) match(i input, pos int) bool {
	startCond := m.re.cond
	if startCond == ^syntax.EmptyOp(0) { // impossible
		return false
	}
	m.matched = false
	for i := range m.matchcap {
		m.matchcap[i] = -1
	}
	runq, nextq := &m.q0, &m.q1
	r, r1 := endOfText, endOfText

		matchcap = 2
	}
	regexp := &Regexp{
		expr:        expr,
		prog:        prog,
		onepass:     compileOnePass(prog),
		numSubexp:   maxCap,
		subexpNames: capNames,
		cond:        prog.StartCond(),
		longest:     longest,
		matchcap:    matchcap,
		minInputLen: minInputLen(re),
	}
	if regexp.onepass == nil {
		regexp.prefix, regexp.prefixComplete = prog.Prefix()

func (p *Paragraph) Line(start, end int) (Ordering, error) {
	lineTypes := p.types[start:end]
	para, err := newParagraph(lineTypes, p.pairTypes[start:end], p.pairValues[start:end], -1)
	if err != nil {
		return Ordering{}, err
	}
	levels := para.getLevels([]int{len(lineTypes)})
	o := calculateOrdering(levels, p.runes[start:end])
	return o, nil
}

		t.Error("missing GC mark assist time")
	}
}

func TestSummarizeGoroutinesRegionsTrace(t *testing.T) {
	summaries := summarizeTraceTest(t, "testdata/tests/go122-annotations.test").Goroutines
	type region struct {
		startKind trace.EventKind
		endKind   trace.EventKind
	}
	wantRegions := map[string]region{
		// N.B. "pre-existing region" never even makes it into the trace.
		//

		end := start + rb.rune[i].size
		rb.out = append(rb.out, rb.byte[start:end]...)
	}
	return true
}

// flush appends the normalized segment to out and resets rb.
func (rb *reorderBuffer) flush(out []byte) []byte {
	for i := 0; i < rb.nrune; i++ {
		start := rb.rune[i].pos
		end := start + rb.rune[i].size
		out = append(out, rb.byte[start:end]...)
	}
	rb.reset()
	return out
}

	}
	t, _, _ := tileForIndex(h, index)
	return t
}

// tileForIndex returns the tile of height h ≥ 1
// storing the given hash index, which can be
// reconstructed using tileHash(data[start:end]).
func tileForIndex(h int, index int64) (t Tile, start, end int) {
	level, n := SplitStoredHashIndex(index)
	t.H = h
	t.L = level / h
	level -= t.L * h // now level within tile
	t.N = n << uint(level) >> uint(t.H)

		end := start + rb.rune[i].size
		rb.out = append(rb.out, rb.byte[start:end]...)
	}
	return true
}

// flush appends the normalized segment to out and resets rb.
func (rb *reorderBuffer) flush(out []byte) []byte {
	for i := 0; i < rb.nrune; i++ {
		start := rb.rune[i].pos
		end := start + rb.rune[i].size
		out = append(out, rb.byte[start:end]...)
	}
	rb.reset()
	return out
}

//
// For a given subscript, returns a tuple (start, end) denoting the start
// axis index and the (negative) end axis index respectively. For any input
// Tensor `x` described by the subscript, `x[start:end]` would be the slice
// represented by the ellipsis. E.g. For `ab...cd` returns `[1, -2]`.
//
// If ellipsis is not present in `subscripts`, returns `(0, 0)`.
//
// Parameters:

	lim := end - UTFMax
	if lim < 0 {
		lim = 0
	}
	for start--; start >= lim; start-- {
		if RuneStart(p[start]) {
			break
		}
	}
	if start < 0 {
		start = 0
	}
	r, size = DecodeRune(p[start:end])
	if start+size != end {
		return RuneError, 1
	}
	return r, size
}

// DecodeLastRuneInString is like [DecodeLastRune] but its input is a string. If

		}
		name := trimSpace(data[0:16])
		var err error
		get := func(start, end, base, bitsize int) int64 {
			if err != nil {
				return 0
			}
			var v int64
			v, err = strconv.ParseInt(trimSpace(data[start:end]), base, bitsize)
			return v
		}
		size := get(48, 58, 10, 64)
		var (
			mtime    int64
			uid, gid int
			mode     os.FileMode
		)
		if verbose {
			mtime = get(16, 28, 10, 64)