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txXSLTNumber.h
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00001 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
00002 /* ***** BEGIN LICENSE BLOCK *****
00003  * Version: MPL 1.1/GPL 2.0/LGPL 2.1
00004  *
00005  * The contents of this file are subject to the Mozilla Public License Version
00006  * 1.1 (the "License"); you may not use this file except in compliance with
00007  * the License. You may obtain a copy of the License at
00008  * http://www.mozilla.org/MPL/
00009  *
00010  * Software distributed under the License is distributed on an "AS IS" basis,
00011  * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
00012  * for the specific language governing rights and limitations under the
00013  * License.
00014  *
00015  * The Original Code is TransforMiiX XSLT processor code.
00016  *
00017  * The Initial Developer of the Original Code is
00018  * Jonas Sicking.
00019  * Portions created by the Initial Developer are Copyright (C) 2002
00020  * the Initial Developer. All Rights Reserved.
00021  *
00022  * Contributor(s):
00023  *   Jonas Sicking <sicking@bigfoot.com>
00024  *
00025  * Alternatively, the contents of this file may be used under the terms of
00026  * either the GNU General Public License Version 2 or later (the "GPL"), or
00027  * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
00028  * in which case the provisions of the GPL or the LGPL are applicable instead
00029  * of those above. If you wish to allow use of your version of this file only
00030  * under the terms of either the GPL or the LGPL, and not to allow others to
00031  * use your version of this file under the terms of the MPL, indicate your
00032  * decision by deleting the provisions above and replace them with the notice
00033  * and other provisions required by the GPL or the LGPL. If you do not delete
00034  * the provisions above, a recipient may use your version of this file under
00035  * the terms of any one of the MPL, the GPL or the LGPL.
00036  *
00037  * ***** END LICENSE BLOCK ***** */
00038 
00039 #ifndef TRANSFRMX_TXXSLTNUMBER_H
00040 #define TRANSFRMX_TXXSLTNUMBER_H
00041 
00042 #include "txError.h"
00043 #include "txList.h"
00044 #include "nsString.h"
00045 
00046 class Expr;
00047 class txPattern;
00048 class txIEvalContext;
00049 class txIMatchContext;
00050 class txXPathTreeWalker;
00051 
00052 class txXSLTNumber {
00053 public:
00054     enum LevelType {
00055         eLevelSingle,
00056         eLevelMultiple,
00057         eLevelAny
00058     };
00059 
00060     static nsresult createNumber(Expr* aValueExpr, txPattern* aCountPattern,
00061                                  txPattern* aFromPattern, LevelType aLevel,
00062                                  Expr* aGroupSize, Expr* aGroupSeparator,
00063                                  Expr* aFormat, txIEvalContext* aContext,
00064                                  nsAString& aResult);
00065 
00066 private:
00067     static nsresult getValueList(Expr* aValueExpr, txPattern* aCountPattern,
00068                                  txPattern* aFromPattern, LevelType aLevel,
00069                                  txIEvalContext* aContext, txList& aValues,
00070                                  nsAString& aValueString);
00071 
00072     static nsresult getCounters(Expr* aGroupSize, Expr* aGroupSeparator,
00073                                 Expr* aFormat, txIEvalContext* aContext,
00074                                 txList& aCounters, nsAString& aHead,
00075                                 nsAString& aTail);
00076 
00082     static PRInt32 getSiblingCount(txXPathTreeWalker& aWalker,
00083                                    txPattern* aCountPattern,
00084                                    txIMatchContext* aContext);
00085     
00086     static PRBool getPrevInDocumentOrder(txXPathTreeWalker& aWalker);
00087 
00088     static MBool isAlphaNumeric(PRUnichar ch);
00089 };
00090 
00091 class txFormattedCounter {
00092 public:
00093     virtual ~txFormattedCounter()
00094     {
00095     }
00096     
00097     virtual void appendNumber(PRInt32 aNumber, nsAString& aDest) = 0;
00098 
00099     static nsresult getCounterFor(const nsAFlatString& aToken, int aGroupSize,
00100                                   const nsAString& aGroupSeparator,
00101                                   txFormattedCounter*& aCounter);
00102     
00103     nsString mSeparator;
00104 };
00105 
00106 #endif //TRANSFRMX_TXXSLTNUMBER_H