Imported Upstream version 1upstream/1

1 files changed, 0 insertions, 1694 deletions

diff --git a/src/pkg/xml/xml.go b/src/pkg/xml/xml.go
deleted file mode 100644
index e7ba44e4a..000000000
--- a/src/pkg/xml/xml.go
+++ /dev/null
@@ -1,1694 +0,0 @@
-// Copyright 2009 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.
-
-// Package xml implements a simple XML 1.0 parser that
-// understands XML name spaces.
-package xml
-
-// References:
-//    Annotated XML spec: http://www.xml.com/axml/testaxml.htm
-//    XML name spaces: http://www.w3.org/TR/REC-xml-names/
-
-// TODO(rsc):
-//	Test error handling.
-
-import (
-	"bufio"
-	"bytes"
-	"fmt"
-	"io"
-	"os"
-	"strconv"
-	"strings"
-	"unicode"
-	"utf8"
-)
-
-// A SyntaxError represents a syntax error in the XML input stream.
-type SyntaxError struct {
-	Msg  string
-	Line int
-}
-
-func (e *SyntaxError) String() string {
-	return "XML syntax error on line " + strconv.Itoa(e.Line) + ": " + e.Msg
-}
-
-// A Name represents an XML name (Local) annotated
-// with a name space identifier (Space).
-// In tokens returned by Parser.Token, the Space identifier
-// is given as a canonical URL, not the short prefix used
-// in the document being parsed.
-type Name struct {
-	Space, Local string
-}
-
-// An Attr represents an attribute in an XML element (Name=Value).
-type Attr struct {
-	Name  Name
-	Value string
-}
-
-// A Token is an interface holding one of the token types:
-// StartElement, EndElement, CharData, Comment, ProcInst, or Directive.
-type Token interface{}
-
-// A StartElement represents an XML start element.
-type StartElement struct {
-	Name Name
-	Attr []Attr
-}
-
-func (e StartElement) Copy() StartElement {
-	attrs := make([]Attr, len(e.Attr))
-	copy(e.Attr, attrs)
-	e.Attr = attrs
-	return e
-}
-
-// An EndElement represents an XML end element.
-type EndElement struct {
-	Name Name
-}
-
-// A CharData represents XML character data (raw text),
-// in which XML escape sequences have been replaced by
-// the characters they represent.
-type CharData []byte
-
-func makeCopy(b []byte) []byte {
-	b1 := make([]byte, len(b))
-	copy(b1, b)
-	return b1
-}
-
-func (c CharData) Copy() CharData { return CharData(makeCopy(c)) }
-
-// A Comment represents an XML comment of the form <!--comment-->.
-// The bytes do not include the <!-- and --> comment markers.
-type Comment []byte
-
-func (c Comment) Copy() Comment { return Comment(makeCopy(c)) }
-
-// A ProcInst represents an XML processing instruction of the form <?target inst?>
-type ProcInst struct {
-	Target string
-	Inst   []byte
-}
-
-func (p ProcInst) Copy() ProcInst {
-	p.Inst = makeCopy(p.Inst)
-	return p
-}
-
-// A Directive represents an XML directive of the form <!text>.
-// The bytes do not include the <! and > markers.
-type Directive []byte
-
-func (d Directive) Copy() Directive { return Directive(makeCopy(d)) }
-
-// CopyToken returns a copy of a Token.
-func CopyToken(t Token) Token {
-	switch v := t.(type) {
-	case CharData:
-		return v.Copy()
-	case Comment:
-		return v.Copy()
-	case Directive:
-		return v.Copy()
-	case ProcInst:
-		return v.Copy()
-	case StartElement:
-		return v.Copy()
-	}
-	return t
-}
-
-// A Parser represents an XML parser reading a particular input stream.
-// The parser assumes that its input is encoded in UTF-8.
-type Parser struct {
-	// Strict defaults to true, enforcing the requirements
-	// of the XML specification.
-	// If set to false, the parser allows input containing common
-	// mistakes:
-	//	* If an element is missing an end tag, the parser invents
-	//	  end tags as necessary to keep the return values from Token
-	//	  properly balanced.
-	//	* In attribute values and character data, unknown or malformed
-	//	  character entities (sequences beginning with &) are left alone.
-	//
-	// Setting:
-	//
-	//	p.Strict = false;
-	//	p.AutoClose = HTMLAutoClose;
-	//	p.Entity = HTMLEntity
-	//
-	// creates a parser that can handle typical HTML.
-	Strict bool
-
-	// When Strict == false, AutoClose indicates a set of elements to
-	// consider closed immediately after they are opened, regardless
-	// of whether an end element is present.
-	AutoClose []string
-
-	// Entity can be used to map non-standard entity names to string replacements.
-	// The parser behaves as if these standard mappings are present in the map,
-	// regardless of the actual map content:
-	//
-	//	"lt": "<",
-	//	"gt": ">",
-	//	"amp": "&",
-	//	"apos": "'",
-	//	"quot": `"`,
-	Entity map[string]string
-
-	// CharsetReader, if non-nil, defines a function to generate
-	// charset-conversion readers, converting from the provided
-	// non-UTF-8 charset into UTF-8. If CharsetReader is nil or
-	// returns an error, parsing stops with an error. One of the
-	// the CharsetReader's result values must be non-nil.
-	CharsetReader func(charset string, input io.Reader) (io.Reader, os.Error)
-
-	r         io.ByteReader
-	buf       bytes.Buffer
-	saved     *bytes.Buffer
-	stk       *stack
-	free      *stack
-	needClose bool
-	toClose   Name
-	nextToken Token
-	nextByte  int
-	ns        map[string]string
-	err       os.Error
-	line      int
-	tmp       [32]byte
-}
-
-// NewParser creates a new XML parser reading from r.
-func NewParser(r io.Reader) *Parser {
-	p := &Parser{
-		ns:       make(map[string]string),
-		nextByte: -1,
-		line:     1,
-		Strict:   true,
-	}
-	p.switchToReader(r)
-	return p
-}
-
-// Token returns the next XML token in the input stream.
-// At the end of the input stream, Token returns nil, os.EOF.
-//
-// Slices of bytes in the returned token data refer to the
-// parser's internal buffer and remain valid only until the next
-// call to Token.  To acquire a copy of the bytes, call CopyToken
-// or the token's Copy method.
-//
-// Token expands self-closing elements such as <br/>
-// into separate start and end elements returned by successive calls.
-//
-// Token guarantees that the StartElement and EndElement
-// tokens it returns are properly nested and matched:
-// if Token encounters an unexpected end element,
-// it will return an error.
-//
-// Token implements XML name spaces as described by
-// http://www.w3.org/TR/REC-xml-names/.  Each of the
-// Name structures contained in the Token has the Space
-// set to the URL identifying its name space when known.
-// If Token encounters an unrecognized name space prefix,
-// it uses the prefix as the Space rather than report an error.
-func (p *Parser) Token() (t Token, err os.Error) {
-	if p.nextToken != nil {
-		t = p.nextToken
-		p.nextToken = nil
-	} else if t, err = p.RawToken(); err != nil {
-		return
-	}
-
-	if !p.Strict {
-		if t1, ok := p.autoClose(t); ok {
-			p.nextToken = t
-			t = t1
-		}
-	}
-	switch t1 := t.(type) {
-	case StartElement:
-		// In XML name spaces, the translations listed in the
-		// attributes apply to the element name and
-		// to the other attribute names, so process
-		// the translations first.
-		for _, a := range t1.Attr {
-			if a.Name.Space == "xmlns" {
-				v, ok := p.ns[a.Name.Local]
-				p.pushNs(a.Name.Local, v, ok)
-				p.ns[a.Name.Local] = a.Value
-			}
-			if a.Name.Space == "" && a.Name.Local == "xmlns" {
-				// Default space for untagged names
-				v, ok := p.ns[""]
-				p.pushNs("", v, ok)
-				p.ns[""] = a.Value
-			}
-		}
-
-		p.translate(&t1.Name, true)
-		for i := range t1.Attr {
-			p.translate(&t1.Attr[i].Name, false)
-		}
-		p.pushElement(t1.Name)
-		t = t1
-
-	case EndElement:
-		p.translate(&t1.Name, true)
-		if !p.popElement(&t1) {
-			return nil, p.err
-		}
-		t = t1
-	}
-	return
-}
-
-// Apply name space translation to name n.
-// The default name space (for Space=="")
-// applies only to element names, not to attribute names.
-func (p *Parser) translate(n *Name, isElementName bool) {
-	switch {
-	case n.Space == "xmlns":
-		return
-	case n.Space == "" && !isElementName:
-		return
-	case n.Space == "" && n.Local == "xmlns":
-		return
-	}
-	if v, ok := p.ns[n.Space]; ok {
-		n.Space = v
-	}
-}
-
-func (p *Parser) switchToReader(r io.Reader) {
-	// Get efficient byte at a time reader.
-	// Assume that if reader has its own
-	// ReadByte, it's efficient enough.
-	// Otherwise, use bufio.
-	if rb, ok := r.(io.ByteReader); ok {
-		p.r = rb
-	} else {
-		p.r = bufio.NewReader(r)
-	}
-}
-
-// Parsing state - stack holds old name space translations
-// and the current set of open elements.  The translations to pop when
-// ending a given tag are *below* it on the stack, which is
-// more work but forced on us by XML.
-type stack struct {
-	next *stack
-	kind int
-	name Name
-	ok   bool
-}
-
-const (
-	stkStart = iota
-	stkNs
-)
-
-func (p *Parser) push(kind int) *stack {
-	s := p.free
-	if s != nil {
-		p.free = s.next
-	} else {
-		s = new(stack)
-	}
-	s.next = p.stk
-	s.kind = kind
-	p.stk = s
-	return s
-}
-
-func (p *Parser) pop() *stack {
-	s := p.stk
-	if s != nil {
-		p.stk = s.next
-		s.next = p.free
-		p.free = s
-	}
-	return s
-}
-
-// Record that we are starting an element with the given name.
-func (p *Parser) pushElement(name Name) {
-	s := p.push(stkStart)
-	s.name = name
-}
-
-// Record that we are changing the value of ns[local].
-// The old value is url, ok.
-func (p *Parser) pushNs(local string, url string, ok bool) {
-	s := p.push(stkNs)
-	s.name.Local = local
-	s.name.Space = url
-	s.ok = ok
-}
-
-// Creates a SyntaxError with the current line number.
-func (p *Parser) syntaxError(msg string) os.Error {
-	return &SyntaxError{Msg: msg, Line: p.line}
-}
-
-// Record that we are ending an element with the given name.
-// The name must match the record at the top of the stack,
-// which must be a pushElement record.
-// After popping the element, apply any undo records from
-// the stack to restore the name translations that existed
-// before we saw this element.
-func (p *Parser) popElement(t *EndElement) bool {
-	s := p.pop()
-	name := t.Name
-	switch {
-	case s == nil || s.kind != stkStart:
-		p.err = p.syntaxError("unexpected end element </" + name.Local + ">")
-		return false
-	case s.name.Local != name.Local:
-		if !p.Strict {
-			p.needClose = true
-			p.toClose = t.Name
-			t.Name = s.name
-			return true
-		}
-		p.err = p.syntaxError("element <" + s.name.Local + "> closed by </" + name.Local + ">")
-		return false
-	case s.name.Space != name.Space:
-		p.err = p.syntaxError("element <" + s.name.Local + "> in space " + s.name.Space +
-			"closed by </" + name.Local + "> in space " + name.Space)
-		return false
-	}
-
-	// Pop stack until a Start is on the top, undoing the
-	// translations that were associated with the element we just closed.
-	for p.stk != nil && p.stk.kind != stkStart {
-		s := p.pop()
-		p.ns[s.name.Local] = s.name.Space, s.ok
-	}
-
-	return true
-}
-
-// If the top element on the stack is autoclosing and
-// t is not the end tag, invent the end tag.
-func (p *Parser) autoClose(t Token) (Token, bool) {
-	if p.stk == nil || p.stk.kind != stkStart {
-		return nil, false
-	}
-	name := strings.ToLower(p.stk.name.Local)
-	for _, s := range p.AutoClose {
-		if strings.ToLower(s) == name {
-			// This one should be auto closed if t doesn't close it.
-			et, ok := t.(EndElement)
-			if !ok || et.Name.Local != name {
-				return EndElement{p.stk.name}, true
-			}
-			break
-		}
-	}
-	return nil, false
-}
-
-// RawToken is like Token but does not verify that
-// start and end elements match and does not translate
-// name space prefixes to their corresponding URLs.
-func (p *Parser) RawToken() (Token, os.Error) {
-	if p.err != nil {
-		return nil, p.err
-	}
-	if p.needClose {
-		// The last element we read was self-closing and
-		// we returned just the StartElement half.
-		// Return the EndElement half now.
-		p.needClose = false
-		return EndElement{p.toClose}, nil
-	}
-
-	b, ok := p.getc()
-	if !ok {
-		return nil, p.err
-	}
-
-	if b != '<' {
-		// Text section.
-		p.ungetc(b)
-		data := p.text(-1, false)
-		if data == nil {
-			return nil, p.err
-		}
-		return CharData(data), nil
-	}
-
-	if b, ok = p.mustgetc(); !ok {
-		return nil, p.err
-	}
-	switch b {
-	case '/':
-		// </: End element
-		var name Name
-		if name, ok = p.nsname(); !ok {
-			if p.err == nil {
-				p.err = p.syntaxError("expected element name after </")
-			}
-			return nil, p.err
-		}
-		p.space()
-		if b, ok = p.mustgetc(); !ok {
-			return nil, p.err
-		}
-		if b != '>' {
-			p.err = p.syntaxError("invalid characters between </" + name.Local + " and >")
-			return nil, p.err
-		}
-		return EndElement{name}, nil
-
-	case '?':
-		// <?: Processing instruction.
-		// TODO(rsc): Should parse the <?xml declaration to make sure
-		// the version is 1.0 and the encoding is UTF-8.
-		var target string
-		if target, ok = p.name(); !ok {
-			if p.err == nil {
-				p.err = p.syntaxError("expected target name after <?")
-			}
-			return nil, p.err
-		}
-		p.space()
-		p.buf.Reset()
-		var b0 byte
-		for {
-			if b, ok = p.mustgetc(); !ok {
-				return nil, p.err
-			}
-			p.buf.WriteByte(b)
-			if b0 == '?' && b == '>' {
-				break
-			}
-			b0 = b
-		}
-		data := p.buf.Bytes()
-		data = data[0 : len(data)-2] // chop ?>
-
-		if target == "xml" {
-			enc := procInstEncoding(string(data))
-			if enc != "" && enc != "utf-8" && enc != "UTF-8" {
-				if p.CharsetReader == nil {
-					p.err = fmt.Errorf("xml: encoding %q declared but Parser.CharsetReader is nil", enc)
-					return nil, p.err
-				}
-				newr, err := p.CharsetReader(enc, p.r.(io.Reader))
-				if err != nil {
-					p.err = fmt.Errorf("xml: opening charset %q: %v", enc, err)
-					return nil, p.err
-				}
-				if newr == nil {
-					panic("CharsetReader returned a nil Reader for charset " + enc)
-				}
-				p.switchToReader(newr)
-			}
-		}
-		return ProcInst{target, data}, nil
-
-	case '!':
-		// <!: Maybe comment, maybe CDATA.
-		if b, ok = p.mustgetc(); !ok {
-			return nil, p.err
-		}
-		switch b {
-		case '-': // <!-
-			// Probably <!-- for a comment.
-			if b, ok = p.mustgetc(); !ok {
-				return nil, p.err
-			}
-			if b != '-' {
-				p.err = p.syntaxError("invalid sequence <!- not part of <!--")
-				return nil, p.err
-			}
-			// Look for terminator.
-			p.buf.Reset()
-			var b0, b1 byte
-			for {
-				if b, ok = p.mustgetc(); !ok {
-					return nil, p.err
-				}
-				p.buf.WriteByte(b)
-				if b0 == '-' && b1 == '-' && b == '>' {
-					break
-				}
-				b0, b1 = b1, b
-			}
-			data := p.buf.Bytes()
-			data = data[0 : len(data)-3] // chop -->
-			return Comment(data), nil
-
-		case '[': // <![
-			// Probably <![CDATA[.
-			for i := 0; i < 6; i++ {
-				if b, ok = p.mustgetc(); !ok {
-					return nil, p.err
-				}
-				if b != "CDATA["[i] {
-					p.err = p.syntaxError("invalid <![ sequence")
-					return nil, p.err
-				}
-			}
-			// Have <![CDATA[.  Read text until ]]>.
-			data := p.text(-1, true)
-			if data == nil {
-				return nil, p.err
-			}
-			return CharData(data), nil
-		}
-
-		// Probably a directive: <!DOCTYPE ...>, <!ENTITY ...>, etc.
-		// We don't care, but accumulate for caller. Quoted angle
-		// brackets do not count for nesting.
-		p.buf.Reset()
-		p.buf.WriteByte(b)
-		inquote := uint8(0)
-		depth := 0
-		for {
-			if b, ok = p.mustgetc(); !ok {
-				return nil, p.err
-			}
-			if inquote == 0 && b == '>' && depth == 0 {
-				break
-			}
-			p.buf.WriteByte(b)
-			switch {
-			case b == inquote:
-				inquote = 0
-
-			case inquote != 0:
-				// in quotes, no special action
-
-			case b == '\'' || b == '"':
-				inquote = b
-
-			case b == '>' && inquote == 0:
-				depth--
-
-			case b == '<' && inquote == 0:
-				depth++
-			}
-		}
-		return Directive(p.buf.Bytes()), nil
-	}
-
-	// Must be an open element like <a href="foo">
-	p.ungetc(b)
-
-	var (
-		name  Name
-		empty bool
-		attr  []Attr
-	)
-	if name, ok = p.nsname(); !ok {
-		if p.err == nil {
-			p.err = p.syntaxError("expected element name after <")
-		}
-		return nil, p.err
-	}
-
-	attr = make([]Attr, 0, 4)
-	for {
-		p.space()
-		if b, ok = p.mustgetc(); !ok {
-			return nil, p.err
-		}
-		if b == '/' {
-			empty = true
-			if b, ok = p.mustgetc(); !ok {
-				return nil, p.err
-			}
-			if b != '>' {
-				p.err = p.syntaxError("expected /> in element")
-				return nil, p.err
-			}
-			break
-		}
-		if b == '>' {
-			break
-		}
-		p.ungetc(b)
-
-		n := len(attr)
-		if n >= cap(attr) {
-			nattr := make([]Attr, n, 2*cap(attr))
-			copy(nattr, attr)
-			attr = nattr
-		}
-		attr = attr[0 : n+1]
-		a := &attr[n]
-		if a.Name, ok = p.nsname(); !ok {
-			if p.err == nil {
-				p.err = p.syntaxError("expected attribute name in element")
-			}
-			return nil, p.err
-		}
-		p.space()
-		if b, ok = p.mustgetc(); !ok {
-			return nil, p.err
-		}
-		if b != '=' {
-			if p.Strict {
-				p.err = p.syntaxError("attribute name without = in element")
-				return nil, p.err
-			} else {
-				p.ungetc(b)
-				a.Value = a.Name.Local
-			}
-		} else {
-			p.space()
-			data := p.attrval()
-			if data == nil {
-				return nil, p.err
-			}
-			a.Value = string(data)
-		}
-	}
-	if empty {
-		p.needClose = true
-		p.toClose = name
-	}
-	return StartElement{name, attr}, nil
-}
-
-func (p *Parser) attrval() []byte {
-	b, ok := p.mustgetc()
-	if !ok {
-		return nil
-	}
-	// Handle quoted attribute values
-	if b == '"' || b == '\'' {
-		return p.text(int(b), false)
-	}
-	// Handle unquoted attribute values for strict parsers
-	if p.Strict {
-		p.err = p.syntaxError("unquoted or missing attribute value in element")
-		return nil
-	}
-	// Handle unquoted attribute values for unstrict parsers
-	p.ungetc(b)
-	p.buf.Reset()
-	for {
-		b, ok = p.mustgetc()
-		if !ok {
-			return nil
-		}
-		// http://www.w3.org/TR/REC-html40/intro/sgmltut.html#h-3.2.2
-		if 'a' <= b && b <= 'z' || 'A' <= b && b <= 'Z' ||
-			'0' <= b && b <= '9' || b == '_' || b == ':' || b == '-' {
-			p.buf.WriteByte(b)
-		} else {
-			p.ungetc(b)
-			break
-		}
-	}
-	return p.buf.Bytes()
-}
-
-// Skip spaces if any
-func (p *Parser) space() {
-	for {
-		b, ok := p.getc()
-		if !ok {
-			return
-		}
-		switch b {
-		case ' ', '\r', '\n', '\t':
-		default:
-			p.ungetc(b)
-			return
-		}
-	}
-}
-
-// Read a single byte.
-// If there is no byte to read, return ok==false
-// and leave the error in p.err.
-// Maintain line number.
-func (p *Parser) getc() (b byte, ok bool) {
-	if p.err != nil {
-		return 0, false
-	}
-	if p.nextByte >= 0 {
-		b = byte(p.nextByte)
-		p.nextByte = -1
-	} else {
-		b, p.err = p.r.ReadByte()
-		if p.err != nil {
-			return 0, false
-		}
-		if p.saved != nil {
-			p.saved.WriteByte(b)
-		}
-	}
-	if b == '\n' {
-		p.line++
-	}
-	return b, true
-}
-
-// Return saved offset.
-// If we did ungetc (nextByte >= 0), have to back up one.
-func (p *Parser) savedOffset() int {
-	n := p.saved.Len()
-	if p.nextByte >= 0 {
-		n--
-	}
-	return n
-}
-
-// Must read a single byte.
-// If there is no byte to read,
-// set p.err to SyntaxError("unexpected EOF")
-// and return ok==false
-func (p *Parser) mustgetc() (b byte, ok bool) {
-	if b, ok = p.getc(); !ok {
-		if p.err == os.EOF {
-			p.err = p.syntaxError("unexpected EOF")
-		}
-	}
-	return
-}
-
-// Unread a single byte.
-func (p *Parser) ungetc(b byte) {
-	if b == '\n' {
-		p.line--
-	}
-	p.nextByte = int(b)
-}
-
-var entity = map[string]int{
-	"lt":   '<',
-	"gt":   '>',
-	"amp":  '&',
-	"apos": '\'',
-	"quot": '"',
-}
-
-// Read plain text section (XML calls it character data).
-// If quote >= 0, we are in a quoted string and need to find the matching quote.
-// If cdata == true, we are in a <![CDATA[ section and need to find ]]>.
-// On failure return nil and leave the error in p.err.
-func (p *Parser) text(quote int, cdata bool) []byte {
-	var b0, b1 byte
-	var trunc int
-	p.buf.Reset()
-Input:
-	for {
-		b, ok := p.getc()
-		if !ok {
-			if cdata {
-				if p.err == os.EOF {
-					p.err = p.syntaxError("unexpected EOF in CDATA section")
-				}
-				return nil
-			}
-			break Input
-		}
-
-		// <![CDATA[ section ends with ]]>.
-		// It is an error for ]]> to appear in ordinary text.
-		if b0 == ']' && b1 == ']' && b == '>' {
-			if cdata {
-				trunc = 2
-				break Input
-			}
-			p.err = p.syntaxError("unescaped ]]> not in CDATA section")
-			return nil
-		}
-
-		// Stop reading text if we see a <.
-		if b == '<' && !cdata {
-			if quote >= 0 {
-				p.err = p.syntaxError("unescaped < inside quoted string")
-				return nil
-			}
-			p.ungetc('<')
-			break Input
-		}
-		if quote >= 0 && b == byte(quote) {
-			break Input
-		}
-		if b == '&' && !cdata {
-			// Read escaped character expression up to semicolon.
-			// XML in all its glory allows a document to define and use
-			// its own character names with <!ENTITY ...> directives.
-			// Parsers are required to recognize lt, gt, amp, apos, and quot
-			// even if they have not been declared.  That's all we allow.
-			var i int
-			for i = 0; i < len(p.tmp); i++ {
-				var ok bool
-				p.tmp[i], ok = p.getc()
-				if !ok {
-					if p.err == os.EOF {
-						p.err = p.syntaxError("unexpected EOF")
-					}
-					return nil
-				}
-				c := p.tmp[i]
-				if c == ';' {
-					break
-				}
-				if 'a' <= c && c <= 'z' ||
-					'A' <= c && c <= 'Z' ||
-					'0' <= c && c <= '9' ||
-					c == '_' || c == '#' {
-					continue
-				}
-				p.ungetc(c)
-				break
-			}
-			s := string(p.tmp[0:i])
-			if i >= len(p.tmp) {
-				if !p.Strict {
-					b0, b1 = 0, 0
-					p.buf.WriteByte('&')
-					p.buf.Write(p.tmp[0:i])
-					continue Input
-				}
-				p.err = p.syntaxError("character entity expression &" + s + "... too long")
-				return nil
-			}
-			var haveText bool
-			var text string
-			if i >= 2 && s[0] == '#' {
-				var n uint64
-				var err os.Error
-				if i >= 3 && s[1] == 'x' {
-					n, err = strconv.Btoui64(s[2:], 16)
-				} else {
-					n, err = strconv.Btoui64(s[1:], 10)
-				}
-				if err == nil && n <= unicode.MaxRune {
-					text = string(n)
-					haveText = true
-				}
-			} else {
-				if r, ok := entity[s]; ok {
-					text = string(r)
-					haveText = true
-				} else if p.Entity != nil {
-					text, haveText = p.Entity[s]
-				}
-			}
-			if !haveText {
-				if !p.Strict {
-					b0, b1 = 0, 0
-					p.buf.WriteByte('&')
-					p.buf.Write(p.tmp[0:i])
-					continue Input
-				}
-				p.err = p.syntaxError("invalid character entity &" + s + ";")
-				return nil
-			}
-			p.buf.Write([]byte(text))
-			b0, b1 = 0, 0
-			continue Input
-		}
-		p.buf.WriteByte(b)
-		b0, b1 = b1, b
-	}
-	data := p.buf.Bytes()
-	data = data[0 : len(data)-trunc]
-
-	// Inspect each rune for being a disallowed character.
-	buf := data
-	for len(buf) > 0 {
-		r, size := utf8.DecodeRune(buf)
-		if r == utf8.RuneError && size == 1 {
-			p.err = p.syntaxError("invalid UTF-8")
-			return nil
-		}
-		buf = buf[size:]
-		if !isInCharacterRange(r) {
-			p.err = p.syntaxError(fmt.Sprintf("illegal character code %U", r))
-			return nil
-		}
-	}
-
-	// Must rewrite \r and \r\n into \n.
-	w := 0
-	for r := 0; r < len(data); r++ {
-		b := data[r]
-		if b == '\r' {
-			if r+1 < len(data) && data[r+1] == '\n' {
-				continue
-			}
-			b = '\n'
-		}
-		data[w] = b
-		w++
-	}
-	return data[0:w]
-}
-
-// Decide whether the given rune is in the XML Character Range, per
-// the Char production of http://www.xml.com/axml/testaxml.htm,
-// Section 2.2 Characters.
-func isInCharacterRange(rune int) (inrange bool) {
-	return rune == 0x09 ||
-		rune == 0x0A ||
-		rune == 0x0D ||
-		rune >= 0x20 && rune <= 0xDF77 ||
-		rune >= 0xE000 && rune <= 0xFFFD ||
-		rune >= 0x10000 && rune <= 0x10FFFF
-}
-
-// Get name space name: name with a : stuck in the middle.
-// The part before the : is the name space identifier.
-func (p *Parser) nsname() (name Name, ok bool) {
-	s, ok := p.name()
-	if !ok {
-		return
-	}
-	i := strings.Index(s, ":")
-	if i < 0 {
-		name.Local = s
-	} else {
-		name.Space = s[0:i]
-		name.Local = s[i+1:]
-	}
-	return name, true
-}
-
-// Get name: /first(first|second)*/
-// Do not set p.err if the name is missing (unless unexpected EOF is received):
-// let the caller provide better context.
-func (p *Parser) name() (s string, ok bool) {
-	var b byte
-	if b, ok = p.mustgetc(); !ok {
-		return
-	}
-
-	// As a first approximation, we gather the bytes [A-Za-z_:.-\x80-\xFF]*
-	if b < utf8.RuneSelf && !isNameByte(b) {
-		p.ungetc(b)
-		return "", false
-	}
-	p.buf.Reset()
-	p.buf.WriteByte(b)
-	for {
-		if b, ok = p.mustgetc(); !ok {
-			return
-		}
-		if b < utf8.RuneSelf && !isNameByte(b) {
-			p.ungetc(b)
-			break
-		}
-		p.buf.WriteByte(b)
-	}
-
-	// Then we check the characters.
-	s = p.buf.String()
-	for i, c := range s {
-		if !unicode.Is(first, c) && (i == 0 || !unicode.Is(second, c)) {
-			p.err = p.syntaxError("invalid XML name: " + s)
-			return "", false
-		}
-	}
-	return s, true
-}
-
-func isNameByte(c byte) bool {
-	return 'A' <= c && c <= 'Z' ||
-		'a' <= c && c <= 'z' ||
-		'0' <= c && c <= '9' ||
-		c == '_' || c == ':' || c == '.' || c == '-'
-}
-
-// These tables were generated by cut and paste from Appendix B of
-// the XML spec at http://www.xml.com/axml/testaxml.htm
-// and then reformatting.  First corresponds to (Letter | '_' | ':')
-// and second corresponds to NameChar.
-
-var first = &unicode.RangeTable{
-	R16: []unicode.Range16{
-		{0x003A, 0x003A, 1},
-		{0x0041, 0x005A, 1},
-		{0x005F, 0x005F, 1},
-		{0x0061, 0x007A, 1},
-		{0x00C0, 0x00D6, 1},
-		{0x00D8, 0x00F6, 1},
-		{0x00F8, 0x00FF, 1},
-		{0x0100, 0x0131, 1},
-		{0x0134, 0x013E, 1},
-		{0x0141, 0x0148, 1},
-		{0x014A, 0x017E, 1},
-		{0x0180, 0x01C3, 1},
-		{0x01CD, 0x01F0, 1},
-		{0x01F4, 0x01F5, 1},
-		{0x01FA, 0x0217, 1},
-		{0x0250, 0x02A8, 1},
-		{0x02BB, 0x02C1, 1},
-		{0x0386, 0x0386, 1},
-		{0x0388, 0x038A, 1},
-		{0x038C, 0x038C, 1},
-		{0x038E, 0x03A1, 1},
-		{0x03A3, 0x03CE, 1},
-		{0x03D0, 0x03D6, 1},
-		{0x03DA, 0x03E0, 2},
-		{0x03E2, 0x03F3, 1},
-		{0x0401, 0x040C, 1},
-		{0x040E, 0x044F, 1},
-		{0x0451, 0x045C, 1},
-		{0x045E, 0x0481, 1},
-		{0x0490, 0x04C4, 1},
-		{0x04C7, 0x04C8, 1},
-		{0x04CB, 0x04CC, 1},
-		{0x04D0, 0x04EB, 1},
-		{0x04EE, 0x04F5, 1},
-		{0x04F8, 0x04F9, 1},
-		{0x0531, 0x0556, 1},
-		{0x0559, 0x0559, 1},
-		{0x0561, 0x0586, 1},
-		{0x05D0, 0x05EA, 1},
-		{0x05F0, 0x05F2, 1},
-		{0x0621, 0x063A, 1},
-		{0x0641, 0x064A, 1},
-		{0x0671, 0x06B7, 1},
-		{0x06BA, 0x06BE, 1},
-		{0x06C0, 0x06CE, 1},
-		{0x06D0, 0x06D3, 1},
-		{0x06D5, 0x06D5, 1},
-		{0x06E5, 0x06E6, 1},
-		{0x0905, 0x0939, 1},
-		{0x093D, 0x093D, 1},
-		{0x0958, 0x0961, 1},
-		{0x0985, 0x098C, 1},
-		{0x098F, 0x0990, 1},
-		{0x0993, 0x09A8, 1},
-		{0x09AA, 0x09B0, 1},
-		{0x09B2, 0x09B2, 1},
-		{0x09B6, 0x09B9, 1},
-		{0x09DC, 0x09DD, 1},
-		{0x09DF, 0x09E1, 1},
-		{0x09F0, 0x09F1, 1},
-		{0x0A05, 0x0A0A, 1},
-		{0x0A0F, 0x0A10, 1},
-		{0x0A13, 0x0A28, 1},
-		{0x0A2A, 0x0A30, 1},
-		{0x0A32, 0x0A33, 1},
-		{0x0A35, 0x0A36, 1},
-		{0x0A38, 0x0A39, 1},
-		{0x0A59, 0x0A5C, 1},
-		{0x0A5E, 0x0A5E, 1},
-		{0x0A72, 0x0A74, 1},
-		{0x0A85, 0x0A8B, 1},
-		{0x0A8D, 0x0A8D, 1},
-		{0x0A8F, 0x0A91, 1},
-		{0x0A93, 0x0AA8, 1},
-		{0x0AAA, 0x0AB0, 1},
-		{0x0AB2, 0x0AB3, 1},
-		{0x0AB5, 0x0AB9, 1},
-		{0x0ABD, 0x0AE0, 0x23},
-		{0x0B05, 0x0B0C, 1},
-		{0x0B0F, 0x0B10, 1},
-		{0x0B13, 0x0B28, 1},
-		{0x0B2A, 0x0B30, 1},
-		{0x0B32, 0x0B33, 1},
-		{0x0B36, 0x0B39, 1},
-		{0x0B3D, 0x0B3D, 1},
-		{0x0B5C, 0x0B5D, 1},
-		{0x0B5F, 0x0B61, 1},
-		{0x0B85, 0x0B8A, 1},
-		{0x0B8E, 0x0B90, 1},
-		{0x0B92, 0x0B95, 1},
-		{0x0B99, 0x0B9A, 1},
-		{0x0B9C, 0x0B9C, 1},
-		{0x0B9E, 0x0B9F, 1},
-		{0x0BA3, 0x0BA4, 1},
-		{0x0BA8, 0x0BAA, 1},
-		{0x0BAE, 0x0BB5, 1},
-		{0x0BB7, 0x0BB9, 1},
-		{0x0C05, 0x0C0C, 1},
-		{0x0C0E, 0x0C10, 1},
-		{0x0C12, 0x0C28, 1},
-		{0x0C2A, 0x0C33, 1},
-		{0x0C35, 0x0C39, 1},
-		{0x0C60, 0x0C61, 1},
-		{0x0C85, 0x0C8C, 1},
-		{0x0C8E, 0x0C90, 1},
-		{0x0C92, 0x0CA8, 1},
-		{0x0CAA, 0x0CB3, 1},
-		{0x0CB5, 0x0CB9, 1},
-		{0x0CDE, 0x0CDE, 1},
-		{0x0CE0, 0x0CE1, 1},
-		{0x0D05, 0x0D0C, 1},
-		{0x0D0E, 0x0D10, 1},
-		{0x0D12, 0x0D28, 1},
-		{0x0D2A, 0x0D39, 1},
-		{0x0D60, 0x0D61, 1},
-		{0x0E01, 0x0E2E, 1},
-		{0x0E30, 0x0E30, 1},
-		{0x0E32, 0x0E33, 1},
-		{0x0E40, 0x0E45, 1},
-		{0x0E81, 0x0E82, 1},
-		{0x0E84, 0x0E84, 1},
-		{0x0E87, 0x0E88, 1},
-		{0x0E8A, 0x0E8D, 3},
-		{0x0E94, 0x0E97, 1},
-		{0x0E99, 0x0E9F, 1},
-		{0x0EA1, 0x0EA3, 1},
-		{0x0EA5, 0x0EA7, 2},
-		{0x0EAA, 0x0EAB, 1},
-		{0x0EAD, 0x0EAE, 1},
-		{0x0EB0, 0x0EB0, 1},
-		{0x0EB2, 0x0EB3, 1},
-		{0x0EBD, 0x0EBD, 1},
-		{0x0EC0, 0x0EC4, 1},
-		{0x0F40, 0x0F47, 1},
-		{0x0F49, 0x0F69, 1},
-		{0x10A0, 0x10C5, 1},
-		{0x10D0, 0x10F6, 1},
-		{0x1100, 0x1100, 1},
-		{0x1102, 0x1103, 1},
-		{0x1105, 0x1107, 1},
-		{0x1109, 0x1109, 1},
-		{0x110B, 0x110C, 1},
-		{0x110E, 0x1112, 1},
-		{0x113C, 0x1140, 2},
-		{0x114C, 0x1150, 2},
-		{0x1154, 0x1155, 1},
-		{0x1159, 0x1159, 1},
-		{0x115F, 0x1161, 1},
-		{0x1163, 0x1169, 2},
-		{0x116D, 0x116E, 1},
-		{0x1172, 0x1173, 1},
-		{0x1175, 0x119E, 0x119E - 0x1175},
-		{0x11A8, 0x11AB, 0x11AB - 0x11A8},
-		{0x11AE, 0x11AF, 1},
-		{0x11B7, 0x11B8, 1},
-		{0x11BA, 0x11BA, 1},
-		{0x11BC, 0x11C2, 1},
-		{0x11EB, 0x11F0, 0x11F0 - 0x11EB},
-		{0x11F9, 0x11F9, 1},
-		{0x1E00, 0x1E9B, 1},
-		{0x1EA0, 0x1EF9, 1},
-		{0x1F00, 0x1F15, 1},
-		{0x1F18, 0x1F1D, 1},
-		{0x1F20, 0x1F45, 1},
-		{0x1F48, 0x1F4D, 1},
-		{0x1F50, 0x1F57, 1},
-		{0x1F59, 0x1F5B, 0x1F5B - 0x1F59},
-		{0x1F5D, 0x1F5D, 1},
-		{0x1F5F, 0x1F7D, 1},
-		{0x1F80, 0x1FB4, 1},
-		{0x1FB6, 0x1FBC, 1},
-		{0x1FBE, 0x1FBE, 1},
-		{0x1FC2, 0x1FC4, 1},
-		{0x1FC6, 0x1FCC, 1},
-		{0x1FD0, 0x1FD3, 1},
-		{0x1FD6, 0x1FDB, 1},
-		{0x1FE0, 0x1FEC, 1},
-		{0x1FF2, 0x1FF4, 1},
-		{0x1FF6, 0x1FFC, 1},
-		{0x2126, 0x2126, 1},
-		{0x212A, 0x212B, 1},
-		{0x212E, 0x212E, 1},
-		{0x2180, 0x2182, 1},
-		{0x3007, 0x3007, 1},
-		{0x3021, 0x3029, 1},
-		{0x3041, 0x3094, 1},
-		{0x30A1, 0x30FA, 1},
-		{0x3105, 0x312C, 1},
-		{0x4E00, 0x9FA5, 1},
-		{0xAC00, 0xD7A3, 1},
-	},
-}
-
-var second = &unicode.RangeTable{
-	R16: []unicode.Range16{
-		{0x002D, 0x002E, 1},
-		{0x0030, 0x0039, 1},
-		{0x00B7, 0x00B7, 1},
-		{0x02D0, 0x02D1, 1},
-		{0x0300, 0x0345, 1},
-		{0x0360, 0x0361, 1},
-		{0x0387, 0x0387, 1},
-		{0x0483, 0x0486, 1},
-		{0x0591, 0x05A1, 1},
-		{0x05A3, 0x05B9, 1},
-		{0x05BB, 0x05BD, 1},
-		{0x05BF, 0x05BF, 1},
-		{0x05C1, 0x05C2, 1},
-		{0x05C4, 0x0640, 0x0640 - 0x05C4},
-		{0x064B, 0x0652, 1},
-		{0x0660, 0x0669, 1},
-		{0x0670, 0x0670, 1},
-		{0x06D6, 0x06DC, 1},
-		{0x06DD, 0x06DF, 1},
-		{0x06E0, 0x06E4, 1},
-		{0x06E7, 0x06E8, 1},
-		{0x06EA, 0x06ED, 1},
-		{0x06F0, 0x06F9, 1},
-		{0x0901, 0x0903, 1},
-		{0x093C, 0x093C, 1},
-		{0x093E, 0x094C, 1},
-		{0x094D, 0x094D, 1},
-		{0x0951, 0x0954, 1},
-		{0x0962, 0x0963, 1},
-		{0x0966, 0x096F, 1},
-		{0x0981, 0x0983, 1},
-		{0x09BC, 0x09BC, 1},
-		{0x09BE, 0x09BF, 1},
-		{0x09C0, 0x09C4, 1},
-		{0x09C7, 0x09C8, 1},
-		{0x09CB, 0x09CD, 1},
-		{0x09D7, 0x09D7, 1},
-		{0x09E2, 0x09E3, 1},
-		{0x09E6, 0x09EF, 1},
-		{0x0A02, 0x0A3C, 0x3A},
-		{0x0A3E, 0x0A3F, 1},
-		{0x0A40, 0x0A42, 1},
-		{0x0A47, 0x0A48, 1},
-		{0x0A4B, 0x0A4D, 1},
-		{0x0A66, 0x0A6F, 1},
-		{0x0A70, 0x0A71, 1},
-		{0x0A81, 0x0A83, 1},
-		{0x0ABC, 0x0ABC, 1},
-		{0x0ABE, 0x0AC5, 1},
-		{0x0AC7, 0x0AC9, 1},
-		{0x0ACB, 0x0ACD, 1},
-		{0x0AE6, 0x0AEF, 1},
-		{0x0B01, 0x0B03, 1},
-		{0x0B3C, 0x0B3C, 1},
-		{0x0B3E, 0x0B43, 1},
-		{0x0B47, 0x0B48, 1},
-		{0x0B4B, 0x0B4D, 1},
-		{0x0B56, 0x0B57, 1},
-		{0x0B66, 0x0B6F, 1},
-		{0x0B82, 0x0B83, 1},
-		{0x0BBE, 0x0BC2, 1},
-		{0x0BC6, 0x0BC8, 1},
-		{0x0BCA, 0x0BCD, 1},
-		{0x0BD7, 0x0BD7, 1},
-		{0x0BE7, 0x0BEF, 1},
-		{0x0C01, 0x0C03, 1},
-		{0x0C3E, 0x0C44, 1},
-		{0x0C46, 0x0C48, 1},
-		{0x0C4A, 0x0C4D, 1},
-		{0x0C55, 0x0C56, 1},
-		{0x0C66, 0x0C6F, 1},
-		{0x0C82, 0x0C83, 1},
-		{0x0CBE, 0x0CC4, 1},
-		{0x0CC6, 0x0CC8, 1},
-		{0x0CCA, 0x0CCD, 1},
-		{0x0CD5, 0x0CD6, 1},
-		{0x0CE6, 0x0CEF, 1},
-		{0x0D02, 0x0D03, 1},
-		{0x0D3E, 0x0D43, 1},
-		{0x0D46, 0x0D48, 1},
-		{0x0D4A, 0x0D4D, 1},
-		{0x0D57, 0x0D57, 1},
-		{0x0D66, 0x0D6F, 1},
-		{0x0E31, 0x0E31, 1},
-		{0x0E34, 0x0E3A, 1},
-		{0x0E46, 0x0E46, 1},
-		{0x0E47, 0x0E4E, 1},
-		{0x0E50, 0x0E59, 1},
-		{0x0EB1, 0x0EB1, 1},
-		{0x0EB4, 0x0EB9, 1},
-		{0x0EBB, 0x0EBC, 1},
-		{0x0EC6, 0x0EC6, 1},
-		{0x0EC8, 0x0ECD, 1},
-		{0x0ED0, 0x0ED9, 1},
-		{0x0F18, 0x0F19, 1},
-		{0x0F20, 0x0F29, 1},
-		{0x0F35, 0x0F39, 2},
-		{0x0F3E, 0x0F3F, 1},
-		{0x0F71, 0x0F84, 1},
-		{0x0F86, 0x0F8B, 1},
-		{0x0F90, 0x0F95, 1},
-		{0x0F97, 0x0F97, 1},
-		{0x0F99, 0x0FAD, 1},
-		{0x0FB1, 0x0FB7, 1},
-		{0x0FB9, 0x0FB9, 1},
-		{0x20D0, 0x20DC, 1},
-		{0x20E1, 0x3005, 0x3005 - 0x20E1},
-		{0x302A, 0x302F, 1},
-		{0x3031, 0x3035, 1},
-		{0x3099, 0x309A, 1},
-		{0x309D, 0x309E, 1},
-		{0x30FC, 0x30FE, 1},
-	},
-}
-
-// HTMLEntity is an entity map containing translations for the
-// standard HTML entity characters.
-var HTMLEntity = htmlEntity
-
-var htmlEntity = map[string]string{
-	/*
-		hget http://www.w3.org/TR/html4/sgml/entities.html |
-		ssam '
-			,y /\&gt;/ x/\&lt;(.|\n)+/ s/\n/ /g
-			,x v/^\&lt;!ENTITY/d
-			,s/\&lt;!ENTITY ([^ ]+) .*U\+([0-9A-F][0-9A-F][0-9A-F][0-9A-F]) .+/	"\1": "\\u\2",/g
-		'
-	*/
-	"nbsp":     "\u00A0",
-	"iexcl":    "\u00A1",
-	"cent":     "\u00A2",
-	"pound":    "\u00A3",
-	"curren":   "\u00A4",
-	"yen":      "\u00A5",
-	"brvbar":   "\u00A6",
-	"sect":     "\u00A7",
-	"uml":      "\u00A8",
-	"copy":     "\u00A9",
-	"ordf":     "\u00AA",
-	"laquo":    "\u00AB",
-	"not":      "\u00AC",
-	"shy":      "\u00AD",
-	"reg":      "\u00AE",
-	"macr":     "\u00AF",
-	"deg":      "\u00B0",
-	"plusmn":   "\u00B1",
-	"sup2":     "\u00B2",
-	"sup3":     "\u00B3",
-	"acute":    "\u00B4",
-	"micro":    "\u00B5",
-	"para":     "\u00B6",
-	"middot":   "\u00B7",
-	"cedil":    "\u00B8",
-	"sup1":     "\u00B9",
-	"ordm":     "\u00BA",
-	"raquo":    "\u00BB",
-	"frac14":   "\u00BC",
-	"frac12":   "\u00BD",
-	"frac34":   "\u00BE",
-	"iquest":   "\u00BF",
-	"Agrave":   "\u00C0",
-	"Aacute":   "\u00C1",
-	"Acirc":    "\u00C2",
-	"Atilde":   "\u00C3",
-	"Auml":     "\u00C4",
-	"Aring":    "\u00C5",
-	"AElig":    "\u00C6",
-	"Ccedil":   "\u00C7",
-	"Egrave":   "\u00C8",
-	"Eacute":   "\u00C9",
-	"Ecirc":    "\u00CA",
-	"Euml":     "\u00CB",
-	"Igrave":   "\u00CC",
-	"Iacute":   "\u00CD",
-	"Icirc":    "\u00CE",
-	"Iuml":     "\u00CF",
-	"ETH":      "\u00D0",
-	"Ntilde":   "\u00D1",
-	"Ograve":   "\u00D2",
-	"Oacute":   "\u00D3",
-	"Ocirc":    "\u00D4",
-	"Otilde":   "\u00D5",
-	"Ouml":     "\u00D6",
-	"times":    "\u00D7",
-	"Oslash":   "\u00D8",
-	"Ugrave":   "\u00D9",
-	"Uacute":   "\u00DA",
-	"Ucirc":    "\u00DB",
-	"Uuml":     "\u00DC",
-	"Yacute":   "\u00DD",
-	"THORN":    "\u00DE",
-	"szlig":    "\u00DF",
-	"agrave":   "\u00E0",
-	"aacute":   "\u00E1",
-	"acirc":    "\u00E2",
-	"atilde":   "\u00E3",
-	"auml":     "\u00E4",
-	"aring":    "\u00E5",
-	"aelig":    "\u00E6",
-	"ccedil":   "\u00E7",
-	"egrave":   "\u00E8",
-	"eacute":   "\u00E9",
-	"ecirc":    "\u00EA",
-	"euml":     "\u00EB",
-	"igrave":   "\u00EC",
-	"iacute":   "\u00ED",
-	"icirc":    "\u00EE",
-	"iuml":     "\u00EF",
-	"eth":      "\u00F0",
-	"ntilde":   "\u00F1",
-	"ograve":   "\u00F2",
-	"oacute":   "\u00F3",
-	"ocirc":    "\u00F4",
-	"otilde":   "\u00F5",
-	"ouml":     "\u00F6",
-	"divide":   "\u00F7",
-	"oslash":   "\u00F8",
-	"ugrave":   "\u00F9",
-	"uacute":   "\u00FA",
-	"ucirc":    "\u00FB",
-	"uuml":     "\u00FC",
-	"yacute":   "\u00FD",
-	"thorn":    "\u00FE",
-	"yuml":     "\u00FF",
-	"fnof":     "\u0192",
-	"Alpha":    "\u0391",
-	"Beta":     "\u0392",
-	"Gamma":    "\u0393",
-	"Delta":    "\u0394",
-	"Epsilon":  "\u0395",
-	"Zeta":     "\u0396",
-	"Eta":      "\u0397",
-	"Theta":    "\u0398",
-	"Iota":     "\u0399",
-	"Kappa":    "\u039A",
-	"Lambda":   "\u039B",
-	"Mu":       "\u039C",
-	"Nu":       "\u039D",
-	"Xi":       "\u039E",
-	"Omicron":  "\u039F",
-	"Pi":       "\u03A0",
-	"Rho":      "\u03A1",
-	"Sigma":    "\u03A3",
-	"Tau":      "\u03A4",
-	"Upsilon":  "\u03A5",
-	"Phi":      "\u03A6",
-	"Chi":      "\u03A7",
-	"Psi":      "\u03A8",
-	"Omega":    "\u03A9",
-	"alpha":    "\u03B1",
-	"beta":     "\u03B2",
-	"gamma":    "\u03B3",
-	"delta":    "\u03B4",
-	"epsilon":  "\u03B5",
-	"zeta":     "\u03B6",
-	"eta":      "\u03B7",
-	"theta":    "\u03B8",
-	"iota":     "\u03B9",
-	"kappa":    "\u03BA",
-	"lambda":   "\u03BB",
-	"mu":       "\u03BC",
-	"nu":       "\u03BD",
-	"xi":       "\u03BE",
-	"omicron":  "\u03BF",
-	"pi":       "\u03C0",
-	"rho":      "\u03C1",
-	"sigmaf":   "\u03C2",
-	"sigma":    "\u03C3",
-	"tau":      "\u03C4",
-	"upsilon":  "\u03C5",
-	"phi":      "\u03C6",
-	"chi":      "\u03C7",
-	"psi":      "\u03C8",
-	"omega":    "\u03C9",
-	"thetasym": "\u03D1",
-	"upsih":    "\u03D2",
-	"piv":      "\u03D6",
-	"bull":     "\u2022",
-	"hellip":   "\u2026",
-	"prime":    "\u2032",
-	"Prime":    "\u2033",
-	"oline":    "\u203E",
-	"frasl":    "\u2044",
-	"weierp":   "\u2118",
-	"image":    "\u2111",
-	"real":     "\u211C",
-	"trade":    "\u2122",
-	"alefsym":  "\u2135",
-	"larr":     "\u2190",
-	"uarr":     "\u2191",
-	"rarr":     "\u2192",
-	"darr":     "\u2193",
-	"harr":     "\u2194",
-	"crarr":    "\u21B5",
-	"lArr":     "\u21D0",
-	"uArr":     "\u21D1",
-	"rArr":     "\u21D2",
-	"dArr":     "\u21D3",
-	"hArr":     "\u21D4",
-	"forall":   "\u2200",
-	"part":     "\u2202",
-	"exist":    "\u2203",
-	"empty":    "\u2205",
-	"nabla":    "\u2207",
-	"isin":     "\u2208",
-	"notin":    "\u2209",
-	"ni":       "\u220B",
-	"prod":     "\u220F",
-	"sum":      "\u2211",
-	"minus":    "\u2212",
-	"lowast":   "\u2217",
-	"radic":    "\u221A",
-	"prop":     "\u221D",
-	"infin":    "\u221E",
-	"ang":      "\u2220",
-	"and":      "\u2227",
-	"or":       "\u2228",
-	"cap":      "\u2229",
-	"cup":      "\u222A",
-	"int":      "\u222B",
-	"there4":   "\u2234",
-	"sim":      "\u223C",
-	"cong":     "\u2245",
-	"asymp":    "\u2248",
-	"ne":       "\u2260",
-	"equiv":    "\u2261",
-	"le":       "\u2264",
-	"ge":       "\u2265",
-	"sub":      "\u2282",
-	"sup":      "\u2283",
-	"nsub":     "\u2284",
-	"sube":     "\u2286",
-	"supe":     "\u2287",
-	"oplus":    "\u2295",
-	"otimes":   "\u2297",
-	"perp":     "\u22A5",
-	"sdot":     "\u22C5",
-	"lceil":    "\u2308",
-	"rceil":    "\u2309",
-	"lfloor":   "\u230A",
-	"rfloor":   "\u230B",
-	"lang":     "\u2329",
-	"rang":     "\u232A",
-	"loz":      "\u25CA",
-	"spades":   "\u2660",
-	"clubs":    "\u2663",
-	"hearts":   "\u2665",
-	"diams":    "\u2666",
-	"quot":     "\u0022",
-	"amp":      "\u0026",
-	"lt":       "\u003C",
-	"gt":       "\u003E",
-	"OElig":    "\u0152",
-	"oelig":    "\u0153",
-	"Scaron":   "\u0160",
-	"scaron":   "\u0161",
-	"Yuml":     "\u0178",
-	"circ":     "\u02C6",
-	"tilde":    "\u02DC",
-	"ensp":     "\u2002",
-	"emsp":     "\u2003",
-	"thinsp":   "\u2009",
-	"zwnj":     "\u200C",
-	"zwj":      "\u200D",
-	"lrm":      "\u200E",
-	"rlm":      "\u200F",
-	"ndash":    "\u2013",
-	"mdash":    "\u2014",
-	"lsquo":    "\u2018",
-	"rsquo":    "\u2019",
-	"sbquo":    "\u201A",
-	"ldquo":    "\u201C",
-	"rdquo":    "\u201D",
-	"bdquo":    "\u201E",
-	"dagger":   "\u2020",
-	"Dagger":   "\u2021",
-	"permil":   "\u2030",
-	"lsaquo":   "\u2039",
-	"rsaquo":   "\u203A",
-	"euro":     "\u20AC",
-}
-
-// HTMLAutoClose is the set of HTML elements that
-// should be considered to close automatically.
-var HTMLAutoClose = htmlAutoClose
-
-var htmlAutoClose = []string{
-	/*
-		hget http://www.w3.org/TR/html4/loose.dtd |
-		9 sed -n 's/<!ELEMENT (.*) - O EMPTY.+/	"\1",/p' | tr A-Z a-z
-	*/
-	"basefont",
-	"br",
-	"area",
-	"link",
-	"img",
-	"param",
-	"hr",
-	"input",
-	"col     ",
-	"frame",
-	"isindex",
-	"base",
-	"meta",
-}
-
-var (
-	esc_quot = []byte("&#34;") // shorter than "&quot;"
-	esc_apos = []byte("&#39;") // shorter than "&apos;"
-	esc_amp  = []byte("&amp;")
-	esc_lt   = []byte("&lt;")
-	esc_gt   = []byte("&gt;")
-)
-
-// Escape writes to w the properly escaped XML equivalent
-// of the plain text data s.
-func Escape(w io.Writer, s []byte) {
-	var esc []byte
-	last := 0
-	for i, c := range s {
-		switch c {
-		case '"':
-			esc = esc_quot
-		case '\'':
-			esc = esc_apos
-		case '&':
-			esc = esc_amp
-		case '<':
-			esc = esc_lt
-		case '>':
-			esc = esc_gt
-		default:
-			continue
-		}
-		w.Write(s[last:i])
-		w.Write(esc)
-		last = i + 1
-	}
-	w.Write(s[last:])
-}
-
-// procInstEncoding parses the `encoding="..."` or `encoding='...'`
-// value out of the provided string, returning "" if not found.
-func procInstEncoding(s string) string {
-	// TODO: this parsing is somewhat lame and not exact.
-	// It works for all actual cases, though.
-	idx := strings.Index(s, "encoding=")
-	if idx == -1 {
-		return ""
-	}
-	v := s[idx+len("encoding="):]
-	if v == "" {
-		return ""
-	}
-	if v[0] != '\'' && v[0] != '"' {
-		return ""
-	}
-	idx = strings.IndexRune(v[1:], int(v[0]))
-	if idx == -1 {
-		return ""
-	}
-	return v[1 : idx+1]
-}