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Diffstat (limited to 'vendor/golang.org/x/text/encoding/charmap/maketables.go')
-rw-r--r--vendor/golang.org/x/text/encoding/charmap/maketables.go556
1 files changed, 556 insertions, 0 deletions
diff --git a/vendor/golang.org/x/text/encoding/charmap/maketables.go b/vendor/golang.org/x/text/encoding/charmap/maketables.go
new file mode 100644
index 0000000..f794170
--- /dev/null
+++ b/vendor/golang.org/x/text/encoding/charmap/maketables.go
@@ -0,0 +1,556 @@
+// Copyright 2013 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// +build ignore
+
+package main
+
+import (
+ "bufio"
+ "fmt"
+ "log"
+ "net/http"
+ "sort"
+ "strings"
+ "unicode/utf8"
+
+ "golang.org/x/text/encoding"
+ "golang.org/x/text/internal/gen"
+)
+
+const ascii = "\x00\x01\x02\x03\x04\x05\x06\x07\x08\x09\x0a\x0b\x0c\x0d\x0e\x0f" +
+ "\x10\x11\x12\x13\x14\x15\x16\x17\x18\x19\x1a\x1b\x1c\x1d\x1e\x1f" +
+ ` !"#$%&'()*+,-./0123456789:;<=>?` +
+ `@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_` +
+ "`abcdefghijklmnopqrstuvwxyz{|}~\u007f"
+
+var encodings = []struct {
+ name string
+ mib string
+ comment string
+ varName string
+ replacement byte
+ mapping string
+}{
+ {
+ "IBM Code Page 037",
+ "IBM037",
+ "",
+ "CodePage037",
+ 0x3f,
+ "http://source.icu-project.org/repos/icu/data/trunk/charset/data/ucm/glibc-IBM037-2.1.2.ucm",
+ },
+ {
+ "IBM Code Page 437",
+ "PC8CodePage437",
+ "",
+ "CodePage437",
+ encoding.ASCIISub,
+ "http://source.icu-project.org/repos/icu/data/trunk/charset/data/ucm/glibc-IBM437-2.1.2.ucm",
+ },
+ {
+ "IBM Code Page 850",
+ "PC850Multilingual",
+ "",
+ "CodePage850",
+ encoding.ASCIISub,
+ "http://source.icu-project.org/repos/icu/data/trunk/charset/data/ucm/glibc-IBM850-2.1.2.ucm",
+ },
+ {
+ "IBM Code Page 852",
+ "PCp852",
+ "",
+ "CodePage852",
+ encoding.ASCIISub,
+ "http://source.icu-project.org/repos/icu/data/trunk/charset/data/ucm/glibc-IBM852-2.1.2.ucm",
+ },
+ {
+ "IBM Code Page 855",
+ "IBM855",
+ "",
+ "CodePage855",
+ encoding.ASCIISub,
+ "http://source.icu-project.org/repos/icu/data/trunk/charset/data/ucm/glibc-IBM855-2.1.2.ucm",
+ },
+ {
+ "Windows Code Page 858", // PC latin1 with Euro
+ "IBM00858",
+ "",
+ "CodePage858",
+ encoding.ASCIISub,
+ "http://source.icu-project.org/repos/icu/data/trunk/charset/data/ucm/windows-858-2000.ucm",
+ },
+ {
+ "IBM Code Page 860",
+ "IBM860",
+ "",
+ "CodePage860",
+ encoding.ASCIISub,
+ "http://source.icu-project.org/repos/icu/data/trunk/charset/data/ucm/glibc-IBM860-2.1.2.ucm",
+ },
+ {
+ "IBM Code Page 862",
+ "PC862LatinHebrew",
+ "",
+ "CodePage862",
+ encoding.ASCIISub,
+ "http://source.icu-project.org/repos/icu/data/trunk/charset/data/ucm/glibc-IBM862-2.1.2.ucm",
+ },
+ {
+ "IBM Code Page 863",
+ "IBM863",
+ "",
+ "CodePage863",
+ encoding.ASCIISub,
+ "http://source.icu-project.org/repos/icu/data/trunk/charset/data/ucm/glibc-IBM863-2.1.2.ucm",
+ },
+ {
+ "IBM Code Page 865",
+ "IBM865",
+ "",
+ "CodePage865",
+ encoding.ASCIISub,
+ "http://source.icu-project.org/repos/icu/data/trunk/charset/data/ucm/glibc-IBM865-2.1.2.ucm",
+ },
+ {
+ "IBM Code Page 866",
+ "IBM866",
+ "",
+ "CodePage866",
+ encoding.ASCIISub,
+ "http://encoding.spec.whatwg.org/index-ibm866.txt",
+ },
+ {
+ "IBM Code Page 1047",
+ "IBM1047",
+ "",
+ "CodePage1047",
+ 0x3f,
+ "http://source.icu-project.org/repos/icu/data/trunk/charset/data/ucm/glibc-IBM1047-2.1.2.ucm",
+ },
+ {
+ "IBM Code Page 1140",
+ "IBM01140",
+ "",
+ "CodePage1140",
+ 0x3f,
+ "http://source.icu-project.org/repos/icu/data/trunk/charset/data/ucm/ibm-1140_P100-1997.ucm",
+ },
+ {
+ "ISO 8859-1",
+ "ISOLatin1",
+ "",
+ "ISO8859_1",
+ encoding.ASCIISub,
+ "http://source.icu-project.org/repos/icu/data/trunk/charset/data/ucm/iso-8859_1-1998.ucm",
+ },
+ {
+ "ISO 8859-2",
+ "ISOLatin2",
+ "",
+ "ISO8859_2",
+ encoding.ASCIISub,
+ "http://encoding.spec.whatwg.org/index-iso-8859-2.txt",
+ },
+ {
+ "ISO 8859-3",
+ "ISOLatin3",
+ "",
+ "ISO8859_3",
+ encoding.ASCIISub,
+ "http://encoding.spec.whatwg.org/index-iso-8859-3.txt",
+ },
+ {
+ "ISO 8859-4",
+ "ISOLatin4",
+ "",
+ "ISO8859_4",
+ encoding.ASCIISub,
+ "http://encoding.spec.whatwg.org/index-iso-8859-4.txt",
+ },
+ {
+ "ISO 8859-5",
+ "ISOLatinCyrillic",
+ "",
+ "ISO8859_5",
+ encoding.ASCIISub,
+ "http://encoding.spec.whatwg.org/index-iso-8859-5.txt",
+ },
+ {
+ "ISO 8859-6",
+ "ISOLatinArabic",
+ "",
+ "ISO8859_6,ISO8859_6E,ISO8859_6I",
+ encoding.ASCIISub,
+ "http://encoding.spec.whatwg.org/index-iso-8859-6.txt",
+ },
+ {
+ "ISO 8859-7",
+ "ISOLatinGreek",
+ "",
+ "ISO8859_7",
+ encoding.ASCIISub,
+ "http://encoding.spec.whatwg.org/index-iso-8859-7.txt",
+ },
+ {
+ "ISO 8859-8",
+ "ISOLatinHebrew",
+ "",
+ "ISO8859_8,ISO8859_8E,ISO8859_8I",
+ encoding.ASCIISub,
+ "http://encoding.spec.whatwg.org/index-iso-8859-8.txt",
+ },
+ {
+ "ISO 8859-9",
+ "ISOLatin5",
+ "",
+ "ISO8859_9",
+ encoding.ASCIISub,
+ "http://source.icu-project.org/repos/icu/data/trunk/charset/data/ucm/iso-8859_9-1999.ucm",
+ },
+ {
+ "ISO 8859-10",
+ "ISOLatin6",
+ "",
+ "ISO8859_10",
+ encoding.ASCIISub,
+ "http://encoding.spec.whatwg.org/index-iso-8859-10.txt",
+ },
+ {
+ "ISO 8859-13",
+ "ISO885913",
+ "",
+ "ISO8859_13",
+ encoding.ASCIISub,
+ "http://encoding.spec.whatwg.org/index-iso-8859-13.txt",
+ },
+ {
+ "ISO 8859-14",
+ "ISO885914",
+ "",
+ "ISO8859_14",
+ encoding.ASCIISub,
+ "http://encoding.spec.whatwg.org/index-iso-8859-14.txt",
+ },
+ {
+ "ISO 8859-15",
+ "ISO885915",
+ "",
+ "ISO8859_15",
+ encoding.ASCIISub,
+ "http://encoding.spec.whatwg.org/index-iso-8859-15.txt",
+ },
+ {
+ "ISO 8859-16",
+ "ISO885916",
+ "",
+ "ISO8859_16",
+ encoding.ASCIISub,
+ "http://encoding.spec.whatwg.org/index-iso-8859-16.txt",
+ },
+ {
+ "KOI8-R",
+ "KOI8R",
+ "",
+ "KOI8R",
+ encoding.ASCIISub,
+ "http://encoding.spec.whatwg.org/index-koi8-r.txt",
+ },
+ {
+ "KOI8-U",
+ "KOI8U",
+ "",
+ "KOI8U",
+ encoding.ASCIISub,
+ "http://encoding.spec.whatwg.org/index-koi8-u.txt",
+ },
+ {
+ "Macintosh",
+ "Macintosh",
+ "",
+ "Macintosh",
+ encoding.ASCIISub,
+ "http://encoding.spec.whatwg.org/index-macintosh.txt",
+ },
+ {
+ "Macintosh Cyrillic",
+ "MacintoshCyrillic",
+ "",
+ "MacintoshCyrillic",
+ encoding.ASCIISub,
+ "http://encoding.spec.whatwg.org/index-x-mac-cyrillic.txt",
+ },
+ {
+ "Windows 874",
+ "Windows874",
+ "",
+ "Windows874",
+ encoding.ASCIISub,
+ "http://encoding.spec.whatwg.org/index-windows-874.txt",
+ },
+ {
+ "Windows 1250",
+ "Windows1250",
+ "",
+ "Windows1250",
+ encoding.ASCIISub,
+ "http://encoding.spec.whatwg.org/index-windows-1250.txt",
+ },
+ {
+ "Windows 1251",
+ "Windows1251",
+ "",
+ "Windows1251",
+ encoding.ASCIISub,
+ "http://encoding.spec.whatwg.org/index-windows-1251.txt",
+ },
+ {
+ "Windows 1252",
+ "Windows1252",
+ "",
+ "Windows1252",
+ encoding.ASCIISub,
+ "http://encoding.spec.whatwg.org/index-windows-1252.txt",
+ },
+ {
+ "Windows 1253",
+ "Windows1253",
+ "",
+ "Windows1253",
+ encoding.ASCIISub,
+ "http://encoding.spec.whatwg.org/index-windows-1253.txt",
+ },
+ {
+ "Windows 1254",
+ "Windows1254",
+ "",
+ "Windows1254",
+ encoding.ASCIISub,
+ "http://encoding.spec.whatwg.org/index-windows-1254.txt",
+ },
+ {
+ "Windows 1255",
+ "Windows1255",
+ "",
+ "Windows1255",
+ encoding.ASCIISub,
+ "http://encoding.spec.whatwg.org/index-windows-1255.txt",
+ },
+ {
+ "Windows 1256",
+ "Windows1256",
+ "",
+ "Windows1256",
+ encoding.ASCIISub,
+ "http://encoding.spec.whatwg.org/index-windows-1256.txt",
+ },
+ {
+ "Windows 1257",
+ "Windows1257",
+ "",
+ "Windows1257",
+ encoding.ASCIISub,
+ "http://encoding.spec.whatwg.org/index-windows-1257.txt",
+ },
+ {
+ "Windows 1258",
+ "Windows1258",
+ "",
+ "Windows1258",
+ encoding.ASCIISub,
+ "http://encoding.spec.whatwg.org/index-windows-1258.txt",
+ },
+ {
+ "X-User-Defined",
+ "XUserDefined",
+ "It is defined at http://encoding.spec.whatwg.org/#x-user-defined",
+ "XUserDefined",
+ encoding.ASCIISub,
+ ascii +
+ "\uf780\uf781\uf782\uf783\uf784\uf785\uf786\uf787" +
+ "\uf788\uf789\uf78a\uf78b\uf78c\uf78d\uf78e\uf78f" +
+ "\uf790\uf791\uf792\uf793\uf794\uf795\uf796\uf797" +
+ "\uf798\uf799\uf79a\uf79b\uf79c\uf79d\uf79e\uf79f" +
+ "\uf7a0\uf7a1\uf7a2\uf7a3\uf7a4\uf7a5\uf7a6\uf7a7" +
+ "\uf7a8\uf7a9\uf7aa\uf7ab\uf7ac\uf7ad\uf7ae\uf7af" +
+ "\uf7b0\uf7b1\uf7b2\uf7b3\uf7b4\uf7b5\uf7b6\uf7b7" +
+ "\uf7b8\uf7b9\uf7ba\uf7bb\uf7bc\uf7bd\uf7be\uf7bf" +
+ "\uf7c0\uf7c1\uf7c2\uf7c3\uf7c4\uf7c5\uf7c6\uf7c7" +
+ "\uf7c8\uf7c9\uf7ca\uf7cb\uf7cc\uf7cd\uf7ce\uf7cf" +
+ "\uf7d0\uf7d1\uf7d2\uf7d3\uf7d4\uf7d5\uf7d6\uf7d7" +
+ "\uf7d8\uf7d9\uf7da\uf7db\uf7dc\uf7dd\uf7de\uf7df" +
+ "\uf7e0\uf7e1\uf7e2\uf7e3\uf7e4\uf7e5\uf7e6\uf7e7" +
+ "\uf7e8\uf7e9\uf7ea\uf7eb\uf7ec\uf7ed\uf7ee\uf7ef" +
+ "\uf7f0\uf7f1\uf7f2\uf7f3\uf7f4\uf7f5\uf7f6\uf7f7" +
+ "\uf7f8\uf7f9\uf7fa\uf7fb\uf7fc\uf7fd\uf7fe\uf7ff",
+ },
+}
+
+func getWHATWG(url string) string {
+ res, err := http.Get(url)
+ if err != nil {
+ log.Fatalf("%q: Get: %v", url, err)
+ }
+ defer res.Body.Close()
+
+ mapping := make([]rune, 128)
+ for i := range mapping {
+ mapping[i] = '\ufffd'
+ }
+
+ scanner := bufio.NewScanner(res.Body)
+ for scanner.Scan() {
+ s := strings.TrimSpace(scanner.Text())
+ if s == "" || s[0] == '#' {
+ continue
+ }
+ x, y := 0, 0
+ if _, err := fmt.Sscanf(s, "%d\t0x%x", &x, &y); err != nil {
+ log.Fatalf("could not parse %q", s)
+ }
+ if x < 0 || 128 <= x {
+ log.Fatalf("code %d is out of range", x)
+ }
+ if 0x80 <= y && y < 0xa0 {
+ // We diverge from the WHATWG spec by mapping control characters
+ // in the range [0x80, 0xa0) to U+FFFD.
+ continue
+ }
+ mapping[x] = rune(y)
+ }
+ return ascii + string(mapping)
+}
+
+func getUCM(url string) string {
+ res, err := http.Get(url)
+ if err != nil {
+ log.Fatalf("%q: Get: %v", url, err)
+ }
+ defer res.Body.Close()
+
+ mapping := make([]rune, 256)
+ for i := range mapping {
+ mapping[i] = '\ufffd'
+ }
+
+ charsFound := 0
+ scanner := bufio.NewScanner(res.Body)
+ for scanner.Scan() {
+ s := strings.TrimSpace(scanner.Text())
+ if s == "" || s[0] == '#' {
+ continue
+ }
+ var c byte
+ var r rune
+ if _, err := fmt.Sscanf(s, `<U%x> \x%x |0`, &r, &c); err != nil {
+ continue
+ }
+ mapping[c] = r
+ charsFound++
+ }
+
+ if charsFound < 200 {
+ log.Fatalf("%q: only %d characters found (wrong page format?)", url, charsFound)
+ }
+
+ return string(mapping)
+}
+
+func main() {
+ mibs := map[string]bool{}
+ all := []string{}
+
+ w := gen.NewCodeWriter()
+ defer w.WriteGoFile("tables.go", "charmap")
+
+ printf := func(s string, a ...interface{}) { fmt.Fprintf(w, s, a...) }
+
+ printf("import (\n")
+ printf("\t\"golang.org/x/text/encoding\"\n")
+ printf("\t\"golang.org/x/text/encoding/internal/identifier\"\n")
+ printf(")\n\n")
+ for _, e := range encodings {
+ varNames := strings.Split(e.varName, ",")
+ all = append(all, varNames...)
+ varName := varNames[0]
+ switch {
+ case strings.HasPrefix(e.mapping, "http://encoding.spec.whatwg.org/"):
+ e.mapping = getWHATWG(e.mapping)
+ case strings.HasPrefix(e.mapping, "http://source.icu-project.org/repos/icu/data/trunk/charset/data/ucm/"):
+ e.mapping = getUCM(e.mapping)
+ }
+
+ asciiSuperset, low := strings.HasPrefix(e.mapping, ascii), 0x00
+ if asciiSuperset {
+ low = 0x80
+ }
+ lvn := 1
+ if strings.HasPrefix(varName, "ISO") || strings.HasPrefix(varName, "KOI") {
+ lvn = 3
+ }
+ lowerVarName := strings.ToLower(varName[:lvn]) + varName[lvn:]
+ printf("// %s is the %s encoding.\n", varName, e.name)
+ if e.comment != "" {
+ printf("//\n// %s\n", e.comment)
+ }
+ printf("var %s *Charmap = &%s\n\nvar %s = Charmap{\nname: %q,\n",
+ varName, lowerVarName, lowerVarName, e.name)
+ if mibs[e.mib] {
+ log.Fatalf("MIB type %q declared multiple times.", e.mib)
+ }
+ printf("mib: identifier.%s,\n", e.mib)
+ printf("asciiSuperset: %t,\n", asciiSuperset)
+ printf("low: 0x%02x,\n", low)
+ printf("replacement: 0x%02x,\n", e.replacement)
+
+ printf("decode: [256]utf8Enc{\n")
+ i, backMapping := 0, map[rune]byte{}
+ for _, c := range e.mapping {
+ if _, ok := backMapping[c]; !ok && c != utf8.RuneError {
+ backMapping[c] = byte(i)
+ }
+ var buf [8]byte
+ n := utf8.EncodeRune(buf[:], c)
+ if n > 3 {
+ panic(fmt.Sprintf("rune %q (%U) is too long", c, c))
+ }
+ printf("{%d,[3]byte{0x%02x,0x%02x,0x%02x}},", n, buf[0], buf[1], buf[2])
+ if i%2 == 1 {
+ printf("\n")
+ }
+ i++
+ }
+ printf("},\n")
+
+ printf("encode: [256]uint32{\n")
+ encode := make([]uint32, 0, 256)
+ for c, i := range backMapping {
+ encode = append(encode, uint32(i)<<24|uint32(c))
+ }
+ sort.Sort(byRune(encode))
+ for len(encode) < cap(encode) {
+ encode = append(encode, encode[len(encode)-1])
+ }
+ for i, enc := range encode {
+ printf("0x%08x,", enc)
+ if i%8 == 7 {
+ printf("\n")
+ }
+ }
+ printf("},\n}\n")
+
+ // Add an estimate of the size of a single Charmap{} struct value, which
+ // includes two 256 elem arrays of 4 bytes and some extra fields, which
+ // align to 3 uint64s on 64-bit architectures.
+ w.Size += 2*4*256 + 3*8
+ }
+ // TODO: add proper line breaking.
+ printf("var listAll = []encoding.Encoding{\n%s,\n}\n\n", strings.Join(all, ",\n"))
+}
+
+type byRune []uint32
+
+func (b byRune) Len() int { return len(b) }
+func (b byRune) Less(i, j int) bool { return b[i]&0xffffff < b[j]&0xffffff }
+func (b byRune) Swap(i, j int) { b[i], b[j] = b[j], b[i] }