txXSLTNumber.h - mozsearch

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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */

/* 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/. */

#ifndef TRANSFRMX_TXXSLTNUMBER_H

#define TRANSFRMX_TXXSLTNUMBER_H

#include "nsError.h"

#include "txList.h"

#include "nsString.h"

class Expr;

class txPattern;

class txIEvalContext;

class txIMatchContext;

class txXPathTreeWalker;

class txXSLTNumber {

 public:

  enum LevelType { eLevelSingle, eLevelMultiple, eLevelAny };

  static nsresult createNumber(Expr* aValueExpr, txPattern* aCountPattern,

                               txPattern* aFromPattern, LevelType aLevel,

                               Expr* aGroupSize, Expr* aGroupSeparator,

                               Expr* aFormat, txIEvalContext* aContext,

                               nsAString& aResult);

 private:

  static nsresult getValueList(Expr* aValueExpr, txPattern* aCountPattern,

                               txPattern* aFromPattern, LevelType aLevel,

                               txIEvalContext* aContext, txList& aValues,

                               nsAString& aValueString);

  static nsresult getCounters(Expr* aGroupSize, Expr* aGroupSeparator,

                              Expr* aFormat, txIEvalContext* aContext,

                              txList& aCounters, nsAString& aHead,

                              nsAString& aTail);

/**

   * getSiblingCount uses aWalker to walk the siblings of aWalker's current

   * position.

*/

  static nsresult getSiblingCount(txXPathTreeWalker& aWalker,

                                  txPattern* aCountPattern,

                                  txIMatchContext* aContext, int32_t* aCount);

  static bool getPrevInDocumentOrder(txXPathTreeWalker& aWalker);

  static bool isAlphaNumeric(char16_t ch);

};

class txFormattedCounter {

 public:

  virtual ~txFormattedCounter() = default;

  virtual void appendNumber(int32_t aNumber, nsAString& aDest) = 0;

  static nsresult getCounterFor(const nsString& aToken, int aGroupSize,

                                const nsAString& aGroupSeparator,

                                txFormattedCounter*& aCounter);

  nsString mSeparator;

};

#endif  // TRANSFRMX_TXXSLTNUMBER_H