}
			if c > unicode.MaxASCII {
				t.Skipf("skipping %#q: contains a non-ASCII character %q", s, c)
			}
			if !unicode.IsGraphic(rune(c)) && !unicode.IsSpace(rune(c)) {
				t.Skipf("skipping %#q: contains non-graphic character %q", s, c)
			}
			if runtime.GOOS == "windows" && c == '\r' || c == '\n' {
				t.Skipf("skipping %#q on Windows: contains unescapable character %q", s, c)
			}
		}

		var b bytes.Buffer

			if c > unicode.MaxASCII {
				t.Skipf("skipping %#q: contains a non-ASCII character %q", b, c)
			}
			if !unicode.IsGraphic(rune(c)) && !unicode.IsSpace(rune(c)) {
				t.Skipf("skipping %#q: contains non-graphic character %q", b, c)
			}
		}

		args, err := splitPkgConfigOutput(b)
		if err != nil {
			// We haven't checked that the shell would actually reject this input too,

	b := &bytes.Buffer{}
	b.WriteString(headerStr)
	b.WriteString(paletteStr)
	for transparentIndex := 0; transparentIndex < 3; transparentIndex++ {
		if transparentIndex < 2 {
			// Write the graphic control for the transparent index.
			b.WriteString("\x21\xf9\x04\x01\x00\x00")
			b.WriteByte(byte(transparentIndex))
			b.WriteByte(0)
		}
		// Write an image with bounds 2x1, as per TestDecode.

package gif

import (
	"bufio"
	"bytes"
	"compress/lzw"
	"errors"
	"image"
	"image/color"
	"image/color/palette"
	"image/draw"
	"internal/byteorder"
	"io"
)

// Graphic control extension fields.
const (
	gcLabel     = 0xF9
	gcBlockSize = 0x04
)

var log2Lookup = [8]int{2, 4, 8, 16, 32, 64, 128, 256}

func log2(x int) int {
	for i, v := range log2Lookup {
		if x <= v {

	0xee5e,
	0xee60,
	0xee63,
	0xee6b,
	0xee73,
	0xee78,
	0xee7d,
	0xee7f,
	0xee8a,
	0xeea4,
	0xeeaa,
	0xf0c0,
	0xf0d0,
	0xfabe,
	0xfb93,
}

// isGraphic lists the graphic runes not matched by IsPrint.
var isGraphic = []uint16{
	0x00a0,
	0x1680,
	0x2000,
	0x2001,
	0x2002,
	0x2003,
	0x2004,
	0x2005,
	0x2006,
	0x2007,
	0x2008,
	0x2009,
	0x200a,

        }
    }

    /**
     * Display attributes, also know as
     * <a href="https://en.wikipedia.org/wiki/ANSI_escape_code#SGR_(Select_Graphic_Rendition)_parameters">SGR
     * (Select Graphic Rendition) parameters</a>.
     */
    public enum Attribute {
        RESET(0, "RESET"),
        INTENSITY_BOLD(1, "INTENSITY_BOLD"),
        INTENSITY_FAINT(2, "INTENSITY_FAINT"),
        ITALIC(3, "ITALIC_ON"),

   * not specified.)
   *
   * @since 8.0
   */
  public static final byte US = 31;

  /**
   * Space: A normally non-printing graphic character used to separate words. It is also a format
   * effector which controls the movement of the printing position, one printing position forward.
   * (Applicable also to display devices.)
   *
   * @since 8.0

   * not specified.)
   *
   * @since 8.0
   */
  public static final byte US = 31;

  /**
   * Space: A normally non-printing graphic character used to separate words. It is also a format
   * effector which controls the movement of the printing position, one printing position forward.
   * (Applicable also to display devices.)
   *
   * @since 8.0

        losses.
    *   Added `LinearOperator.adjoint` and `LinearOperator.H` (alias).
    *   Expose CriticalSection in core as `tf.CriticalSection`.
    *   Enhanced graphviz output.
    *   Add opkernel templates for common table operations.
    *   Fix callbacks do not log values in eager mode when a deferred build
        model is used.

	//
	// spec: "Implementation restriction: A compiler may restrict
	// ImportPaths to non-empty strings using only characters belonging
	// to Unicode's L, M, N, P, and S general categories (the Graphic
	// characters without spaces) and may also exclude the characters
	// !"#$%&'()*,:;<=>?[\]^`{|} and the Unicode replacement character
	// U+FFFD."
	if s == "" {
		return lit
	}