initial commit

vendor/golang.org/x/net/html/charset/gen.go

@@ -0,0 +1,111 @@
+// 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
+
+// Download http://encoding.spec.whatwg.org/encodings.json and use it to
+// generate table.go.
+
+import (
+	"encoding/json"
+	"fmt"
+	"log"
+	"net/http"
+	"strings"
+)
+
+type enc struct {
+	Name   string
+	Labels []string
+}
+
+type group struct {
+	Encodings []enc
+	Heading   string
+}
+
+const specURL = "http://encoding.spec.whatwg.org/encodings.json"
+
+func main() {
+	resp, err := http.Get(specURL)
+	if err != nil {
+		log.Fatalf("error fetching %s: %s", specURL, err)
+	}
+	if resp.StatusCode != 200 {
+		log.Fatalf("error fetching %s: HTTP status %s", specURL, resp.Status)
+	}
+	defer resp.Body.Close()
+
+	var groups []group
+	d := json.NewDecoder(resp.Body)
+	err = d.Decode(&groups)
+	if err != nil {
+		log.Fatalf("error reading encodings.json: %s", err)
+	}
+
+	fmt.Println("// generated by go run gen.go; DO NOT EDIT")
+	fmt.Println()
+	fmt.Println("package charset")
+	fmt.Println()
+
+	fmt.Println("import (")
+	fmt.Println(`"golang.org/x/text/encoding"`)
+	for _, pkg := range []string{"charmap", "japanese", "korean", "simplifiedchinese", "traditionalchinese", "unicode"} {
+		fmt.Printf("\"golang.org/x/text/encoding/%s\"\n", pkg)
+	}
+	fmt.Println(")")
+	fmt.Println()
+
+	fmt.Println("var encodings = map[string]struct{e encoding.Encoding; name string} {")
+	for _, g := range groups {
+		for _, e := range g.Encodings {
+			goName, ok := miscNames[e.Name]
+			if !ok {
+				for k, v := range prefixes {
+					if strings.HasPrefix(e.Name, k) {
+						goName = v + e.Name[len(k):]
+						break
+					}
+				}
+				if goName == "" {
+					log.Fatalf("unrecognized encoding name: %s", e.Name)
+				}
+			}
+
+			for _, label := range e.Labels {
+				fmt.Printf("%q: {%s, %q},\n", label, goName, e.Name)
+			}
+		}
+	}
+	fmt.Println("}")
+}
+
+var prefixes = map[string]string{
+	"iso-8859-": "charmap.ISO8859_",
+	"windows-":  "charmap.Windows",
+}
+
+var miscNames = map[string]string{
+	"utf-8":          "encoding.Nop",
+	"ibm866":         "charmap.CodePage866",
+	"iso-8859-8-i":   "charmap.ISO8859_8",
+	"koi8-r":         "charmap.KOI8R",
+	"koi8-u":         "charmap.KOI8U",
+	"macintosh":      "charmap.Macintosh",
+	"x-mac-cyrillic": "charmap.MacintoshCyrillic",
+	"gbk":            "simplifiedchinese.GBK",
+	"gb18030":        "simplifiedchinese.GB18030",
+	"hz-gb-2312":     "simplifiedchinese.HZGB2312",
+	"big5":           "traditionalchinese.Big5",
+	"euc-jp":         "japanese.EUCJP",
+	"iso-2022-jp":    "japanese.ISO2022JP",
+	"shift_jis":      "japanese.ShiftJIS",
+	"euc-kr":         "korean.EUCKR",
+	"replacement":    "encoding.Replacement",
+	"utf-16be":       "unicode.UTF16(unicode.BigEndian, unicode.IgnoreBOM)",
+	"utf-16le":       "unicode.UTF16(unicode.LittleEndian, unicode.IgnoreBOM)",
+	"x-user-defined": "charmap.XUserDefined",
+}