gecko-dev/xpcom/string/nsStringComparator.cpp

/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

#include <ctype.h>
#include "nsAString.h"
#include "plstr.h"


// define nsStringComparator
#include "string-template-def-unichar.h"
#include "nsTStringComparator.cpp"
#include "string-template-undef.h"

// define nsCStringComparator
#include "string-template-def-char.h"
#include "nsTStringComparator.cpp"
#include "string-template-undef.h"


int
nsCaseInsensitiveCStringComparator::operator()(const char_type* aLhs,
                                               const char_type* aRhs,
                                               uint32_t aLhsLength,
                                               uint32_t aRhsLength) const
{
  if (aLhsLength != aRhsLength) {
    return (aLhsLength > aRhsLength) ? 1 : -1;
  }
  int32_t result = int32_t(PL_strncasecmp(aLhs, aRhs, aLhsLength));
  //Egads. PL_strncasecmp is returning *very* negative numbers.
  //Some folks expect -1,0,1, so let's temper its enthusiasm.
  if (result < 0) {
    result = -1;
  }
  return result;
}