Function dumpInst

regexp/copy.go:182–223

(b *bytes.Buffer, i *syntax.Inst)

}

func dumpInst(b *bytes.Buffer, i *syntax.Inst) {
	switch i.Op {
	case syntax.InstAlt:
		bw(b, "alt -> ", u32(i.Out), ", ", u32(i.Arg))
	case syntax.InstAltMatch:
		bw(b, "altmatch -> ", u32(i.Out), ", ", u32(i.Arg))
	case syntax.InstCapture:
		bw(b, "cap ", u32(i.Arg), " -> ", u32(i.Out))
	case syntax.InstEmptyWidth:
		bw(b, "empty ", u32(i.Arg), " -> ", u32(i.Out))
	case syntax.InstMatch:
		bw(b, "match")
	case syntax.InstFail:
		bw(b, "fail")
	case syntax.InstNop:
		bw(b, "nop -> ", u32(i.Out))
	case instByteRange:
		fmt.Fprintf(b, "byte %02x-%02x", (i.Arg>>8)&0xFF, i.Arg&0xFF)
		if i.Arg&argFold != 0 {
			bw(b, "/i")
		}
		bw(b, " -> ", u32(i.Out))

	// Should not happen
	case syntax.InstRune:
		if i.Rune == nil {
			// shouldn't happen
			bw(b, "rune <nil>")
		}
		bw(b, "rune ", strconv.QuoteToASCII(string(i.Rune)))
		if syntax.Flags(i.Arg)&syntax.FoldCase != 0 {
			bw(b, "/i")
		}
		bw(b, " -> ", u32(i.Out))
	case syntax.InstRune1:
		bw(b, "rune1 ", strconv.QuoteToASCII(string(i.Rune)), " -> ", u32(i.Out))
	case syntax.InstRuneAny:
		bw(b, "any -> ", u32(i.Out))
	case syntax.InstRuneAnyNotNL:
		bw(b, "anynotnl -> ", u32(i.Out))
	}
}