unicode: move unicode and related packages to Unicode 6.2.0.

R=r, mpvl
CC=golang-dev
https://golang.org/cl/6818067

src/pkg/exp/locale/collate/build/builder.go

@@ -129,7 +129,7 @@ func (b *Builder) Add(runes []rune, colelems [][]int, variables []int) error {
 			if ce[0] > b.varTop {
 				b.varTop = ce[0]
 			}
-		} else if ce[0] > 0 {
+		} else if ce[0] > 1 { // 1 is a special primary value reserved for FFFE
 			if ce[0] <= b.varTop {
 				return fmt.Errorf("primary value %X of non-variable is smaller than the highest variable %X", ce[0], b.varTop)
 			}

src/pkg/exp/locale/collate/maketables.go

@@ -38,7 +38,7 @@ var (
 		`URL of the Default Unicode Collation Element Table (DUCET). This can be a zip
 file containing the file allkeys_CLDR.txt or an allkeys.txt file.`)
 	cldr = flag.String("cldr",
-		"http://www.unicode.org/Public/cldr/2.0.1/core.zip",
+		"http://www.unicode.org/Public/cldr/22/core.zip",
 		"URL of CLDR archive.")
 	test = flag.Bool("test", false,
 		"test existing tables; can be used to compare web data with package data.")

src/pkg/unicode/graphic.go

@@ -15,6 +15,8 @@ const (
 	pLl                // a lower-case letter.
 	pp                 // a printable character according to Go's definition.
 	pg     = pp | pZ   // a graphical character according to the Unicode definition.
+	pLo    = pLl | pLu // a letter that is neither upper nor lower case.
+	pLmask = pLo
 )
 
 // GraphicRanges defines the set of graphic characters according to Unicode.
@@ -76,7 +78,7 @@ func IsControl(r rune) bool {
 // IsLetter reports whether the rune is a letter (category L).
 func IsLetter(r rune) bool {
 	if uint32(r) <= MaxLatin1 {
-		return properties[uint8(r)]&(pLu|pLl) != 0
+		return properties[uint8(r)]&(pLmask) != 0
 	}
 	return isExcludingLatin(Letter, r)
 }

src/pkg/unicode/letter.go

@@ -180,7 +180,7 @@ func isExcludingLatin(rangeTab *RangeTable, r rune) bool {
 func IsUpper(r rune) bool {
 	// See comment in IsGraphic.
 	if uint32(r) <= MaxLatin1 {
-		return properties[uint8(r)]&pLu != 0
+		return properties[uint8(r)]&pLmask == pLu
 	}
 	return isExcludingLatin(Upper, r)
 }
@@ -189,7 +189,7 @@ func IsUpper(r rune) bool {
 func IsLower(r rune) bool {
 	// See comment in IsGraphic.
 	if uint32(r) <= MaxLatin1 {
-		return properties[uint8(r)]&pLl != 0
+		return properties[uint8(r)]&pLmask == pLl
 	}
 	return isExcludingLatin(Lower, r)
 }

src/pkg/unicode/maketables.go

@@ -41,7 +41,7 @@ func main() {
 var dataURL = flag.String("data", "", "full URL for UnicodeData.txt; defaults to --url/UnicodeData.txt")
 var casefoldingURL = flag.String("casefolding", "", "full URL for CaseFolding.txt; defaults to --url/CaseFolding.txt")
 var url = flag.String("url",
-	"http://www.unicode.org/Public/6.0.0/ucd/",
+	"http://www.unicode.org/Public/6.2.0/ucd/",
 	"URL of Unicode database directory")
 var tablelist = flag.String("tables",
 	"all",
@@ -367,7 +367,7 @@ func loadCasefold() {
 			}
 			logger.Fatal(err)
 		}
-		if line[0] == '#' {
+		if line[0] == '#' || len(strings.TrimSpace(line)) == 0 {
 			continue
 		}
 		field := strings.Split(line, "; ")
@@ -1040,6 +1040,8 @@ func printLatinProperties() {
 			property = "0"
 		case "Ll":
 			property = "pLl | pp"
+		case "Lo":
+			property = "pLo | pp"
 		case "Lu":
 			property = "pLu | pp"
 		case "Nd", "No":

src/pkg/unicode/script_test.go

@@ -14,7 +14,7 @@ type T struct {
 	script string
 }
 
-// Hand-chosen tests from Unicode 5.1.0 & 6.0..0, mostly to discover when new
+// Hand-chosen tests from Unicode 5.1.0, 6.0.0 and 6.2.0 mostly to discover when new
 // scripts and categories arise.
 var inTest = []T{
 	{0x06e2, "Arabic"},
@@ -31,6 +31,7 @@ var inTest = []T{
 	{0x11011, "Brahmi"},
 	{0x156d, "Canadian_Aboriginal"},
 	{0x102a9, "Carian"},
+	{0x11111, "Chakma"},
 	{0xaa4d, "Cham"},
 	{0x13c2, "Cherokee"},
 	{0x0020, "Common"},
@@ -76,6 +77,9 @@ var inTest = []T{
 	{0x0d42, "Malayalam"},
 	{0x0843, "Mandaic"},
 	{0xabd0, "Meetei_Mayek"},
+	{0x1099f, "Meroitic_Hieroglyphs"},
+	{0x109a0, "Meroitic_Cursive"},
+	{0x16f00, "Miao"},
 	{0x1822, "Mongolian"},
 	{0x104c, "Myanmar"},
 	{0x19c3, "New_Tai_Lue"},
@@ -94,8 +98,10 @@ var inTest = []T{
 	{0x16c0, "Runic"},
 	{0x081d, "Samaritan"},
 	{0xa892, "Saurashtra"},
+	{0x111a0, "Sharada"},
 	{0x10463, "Shavian"},
 	{0x0dbd, "Sinhala"},
+	{0x110d0, "Sora_Sompeng"},
 	{0x1ba3, "Sundanese"},
 	{0xa803, "Syloti_Nagri"},
 	{0x070f, "Syriac"},
@@ -104,6 +110,7 @@ var inTest = []T{
 	{0x1972, "Tai_Le"},
 	{0x1a62, "Tai_Tham"},
 	{0xaadc, "Tai_Viet"},
+	{0x116c9, "Takri"},
 	{0x0bbf, "Tamil"},
 	{0x0c55, "Telugu"},
 	{0x07a7, "Thaana"},
@@ -121,7 +128,7 @@ var outTest = []T{ // not really worth being thorough
 
 var inCategoryTest = []T{
 	{0x0081, "Cc"},
-	{0x17b4, "Cf"},
+	{0x200B, "Cf"},
 	{0xf0000, "Co"},
 	{0xdb80, "Cs"},
 	{0x0236, "Ll"},