chromium/src/third_party/blink/renderer/platform/text/web_entities.cc

/*
 * Copyright (C) 2009 Google Inc. All rights reserved.
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 * modification, are permitted provided that the following conditions are
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 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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#include "third_party/blink/renderer/platform/text/web_entities.h"

#include <string.h>
#include "third_party/blink/public/platform/web_string.h"
#include "third_party/blink/renderer/platform/wtf/text/string_builder.h"

namespace blink {

WebEntities::WebEntities(bool xml_entities) {
  DCHECK(entities_map_.IsEmpty());
  entities_map_.Set(0x003c, "lt");
  entities_map_.Set(0x003e, "gt");
  entities_map_.Set(0x0026, "amp");
  entities_map_.Set(0x0027, "apos");
  entities_map_.Set(0x0022, "quot");
  // We add #39 for test-compatibility reason.
  if (!xml_entities)
    entities_map_.Set(0x0027, String("#39"));
}

String WebEntities::EntityNameByCode(int code) const {
  // FIXME: We should use find so we only do one hash lookup.
  if (entities_map_.Contains(code))
    return entities_map_.at(code);
  return "";
}

String WebEntities::ConvertEntitiesInString(const String& value) const {
  StringBuilder result;
  bool did_convert_entity = false;
  unsigned length = value.length();
  for (unsigned i = 0; i < length; ++i) {
    UChar c = value[i];
    // FIXME: We should use find so we only do one hash lookup.
    if (entities_map_.Contains(c)) {
      did_convert_entity = true;
      result.Append('&');
      result.Append(entities_map_.at(c));
      result.Append(';');
    } else {
      result.Append(c);
    }
  }

  if (!did_convert_entity)
    return value;

  return result.ToString();
}

}  // namespace blink