doctype.h

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// Copyright 2010 Google Inc.

#ifndef PAGESPEED_KERNEL_HTML_DOCTYPE_H_
#define PAGESPEED_KERNEL_HTML_DOCTYPE_H_

#include "pagespeed/kernel/base/string_util.h"  

namespace net_instaweb {
struct ContentType;

class DocType {
 public:
  DocType() : doctype_(UNKNOWN) {}
  DocType(const DocType& src) : doctype_(src.doctype_) {}
  ~DocType() {}

  DocType& operator=(const DocType& src) {
    if (&src != this) {
      doctype_ = src.doctype_;
    }
    return *this;
  }

  bool operator==(const DocType& other) const {
    return doctype_ == other.doctype_;
  }

  bool operator!=(const DocType& other) const {
    return doctype_ != other.doctype_;
  }

  bool IsXhtml() const;
  bool IsVersion5() const;

  static const DocType kUnknown;
  static const DocType kHTML5;
  static const DocType kHTML4Strict;
  static const DocType kHTML4Transitional;
  static const DocType kXHTML5;
  static const DocType kXHTML11;
  static const DocType kXHTML10Strict;
  static const DocType kXHTML10Transitional;

  bool Parse(const StringPiece& directive,
             const ContentType& content_type);

 private:
  enum DocTypeEnum {
    UNKNOWN = 0,
    HTML_5,
    HTML_4_STRICT,
    HTML_4_TRANSITIONAL,
    XHTML_5,
    XHTML_1_1,
    XHTML_1_0_STRICT,
    XHTML_1_0_TRANSITIONAL,
    OTHER_XHTML,
  };

  explicit DocType(DocTypeEnum doctype) : doctype_(doctype) {}

  DocTypeEnum doctype_;
};

}  

#endif