dst[i*3+2] = dbuf[0] << 2
	dst[i*3+2] = dbuf[0]<<2 | dbuf[1]>>4

	b.buf = b.buf[0 : b.off+m+n]
	b.buf = b.buf[0 : b.off+m*n]
	f(b.buf[0 : b.off+m+n])

	signed += ' ' * 8
	tw.octal(header[148:155], chksum)

	_ = x > 0 && i >= 0

	x1, x0 := x>>w2, x&m2
	z0 = t1<<w2 + t0
	z1 = (t1 + t0>>w2) >> w2
	q1, r1 := x1/d1, x1%d1
	r1 = r1*b2 | x0>>w2
	x1 = (x1 << z) | (x0 >> (uint(w) - z))

	dst[i*3+2] = dbuf[0] << 2
	dst[i*3+2] = dbuf[0]<<2 | dbuf[1]>>4

	b.buf = b.buf[0 : b.off+m+n]
	b.buf = b.buf[0 : b.off+m*n]
	f(b.buf[0 : b.off+m+n])

	signed += ' ' * 8
	tw.octal(header[148:155], chksum)

	_ = x > 0 && i >= 0

	x1, x0 := x>>w2, x&m2
	z0 = t1<<w2 + t0
	z1 = (t1 + t0>>w2) >> w2
	q1, r1 := x1/d1, x1%d1
	r1 = r1*b2 | x0>>w2
	x1 = (x1 << z) | (x0 >> (uint(w) - z))

      value = (value * radix) + digit;
    }

    return value;
  }

  /**
   * Returns the unsigned {@code long} value represented by the given string.
   *
   * <p>Accepts a decimal, hexadecimal, or octal number given by specifying the following prefix:
   *
   * <ul>
   *   <li>{@code 0x}<i>HexDigits</i>
   *   <li>{@code 0X}<i>HexDigits</i>
   *   <li>{@code #}<i>HexDigits</i>
   *   <li>{@code 0}<i>OctalDigits</i>

      value = (value * radix) + digit;
    }

    return value;
  }

  /**
   * Returns the unsigned {@code long} value represented by the given string.
   *
   * <p>Accepts a decimal, hexadecimal, or octal number given by specifying the following prefix:
   *
   * <ul>
   *   <li>{@code 0x}<i>HexDigits</i>
   *   <li>{@code 0X}<i>HexDigits</i>
   *   <li>{@code #}<i>HexDigits</i>
   *   <li>{@code 0}<i>OctalDigits</i>

	{`\p{Lu}`, mkCharClass(unicode.IsUpper)},
	{`[\p{Lu}]`, mkCharClass(unicode.IsUpper)},
	{`(?i)[\p{Lu}]`, mkCharClass(isUpperFold)},
	{`\p{Any}`, `dot{}`},
	{`\p{^Any}`, `cc{}`},

	// Hex, octal.
	{`[\012-\234]\141`, `cat{cc{0xa-0x9c}lit{a}}`},
	{`[\x{41}-\x7a]\x61`, `cat{cc{0x41-0x7a}lit{a}}`},

	// More interesting regular expressions.
	{`a{,2}`, `str{a{,2}}`},
	{`\.\^\$\\`, `str{.^$\}`},

	{in: "10_/1"},
	{in: "_10/1"},
	{in: "1/1__0"},

	// valid
	{"0b1000/3", "8/3", true},
	{"0B1000/0x8", "1", true},
	{"-010/1", "-8", true}, // 0-prefix indicates octal in this case
	{"-010.0", "-10", true},
	{"-0o10/1", "-8", true},
	{"0x10/1", "16", true},
	{"0x10/0x20", "1/2", true},

	{"0010", "10", true}, // 0-prefix is ignored in this case (not a fraction)

  // +optional
  repeated KeyToPath items = 2;

  // defaultMode is optional: mode bits used to set permissions on created files by default.
  // Must be an octal value between 0000 and 0777 or a decimal value between 0 and 511.
  // YAML accepts both octal and decimal values, JSON requires decimal values for mode bits.
  // Defaults to 0644.
  // Directories within the path are not affected by this setting.

	"defaultMode": "defaultMode is optional: mode bits used to set permissions on created files by default. Must be an octal value between 0000 and 0777 or a decimal value between 0 and 511. YAML accepts both octal and decimal values, JSON requires decimal values for mode bits. Defaults to 0644. Directories within the path are not affected by this setting. This might be in conflict with other options that affect the...

	if err == nil && (invalSep || prev == '_') {
		err = errInvalSep
	}

	if count == 0 {
		// no digits found
		if prefix == '0' {
			// there was only the octal prefix 0 (possibly followed by separators and digits > 7);
			// interpret as decimal 0
			return z[:0], 10, 1, err
		}
		err = errNoDigits // fall through; result will be 0
	}

		return -2
	}
	return ir.IntVal(types.Types[types.TINT], v)
}

// callOrChan reports whether n is a call or channel operation.
func callOrChan(n ir.Node) bool {
	switch n.Op() {
	case ir.OAPPEND,
		ir.OCALL,
		ir.OCALLFUNC,
		ir.OCALLINTER,
		ir.OCALLMETH,
		ir.OCAP,
		ir.OCLEAR,
		ir.OCLOSE,
		ir.OCOMPLEX,
		ir.OCOPY,
		ir.ODELETE,
		ir.OIMAG,
		ir.OLEN,
		ir.OMAKE,
		ir.OMAX,