mirror of
https://github.com/mozilla/gecko-dev.git
synced 2024-11-02 07:05:24 +00:00
102 lines
3.4 KiB
C++
102 lines
3.4 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
|
|
/* ***** BEGIN LICENSE BLOCK *****
|
|
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
|
|
*
|
|
* The contents of this file are subject to the Mozilla Public License Version
|
|
* 1.1 (the "License"); you may not use this file except in compliance with
|
|
* the License. You may obtain a copy of the License at
|
|
* http://www.mozilla.org/MPL/
|
|
*
|
|
* Software distributed under the License is distributed on an "AS IS" basis,
|
|
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
|
|
* for the specific language governing rights and limitations under the
|
|
* License.
|
|
*
|
|
* The Original Code is Mozilla XForms support.
|
|
*
|
|
* The Initial Developer of the Original Code is
|
|
* Novell, Inc.
|
|
* Portions created by the Initial Developer are Copyright (C) 2004
|
|
* the Initial Developer. All Rights Reserved.
|
|
*
|
|
* Contributor(s):
|
|
* Allan Beaufour <abeaufour@novell.com>
|
|
* David Landwehr <dlandwehr@novell.com>
|
|
*
|
|
* Alternatively, the contents of this file may be used under the terms of
|
|
* either the GNU General Public License Version 2 or later (the "GPL"), or
|
|
* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
|
|
* in which case the provisions of the GPL or the LGPL are applicable instead
|
|
* of those above. If you wish to allow use of your version of this file only
|
|
* under the terms of either the GPL or the LGPL, and not to allow others to
|
|
* use your version of this file under the terms of the MPL, indicate your
|
|
* decision by deleting the provisions above and replace them with the notice
|
|
* and other provisions required by the GPL or the LGPL. If you do not delete
|
|
* the provisions above, a recipient may use your version of this file under
|
|
* the terms of any one of the MPL, the GPL or the LGPL.
|
|
*
|
|
* ***** END LICENSE BLOCK ***** */
|
|
|
|
#ifndef __NSXFORMSXPATHSCANNER_H__
|
|
#define __NSXFORMSXPATHSCANNER_H__
|
|
|
|
#include "nsString.h"
|
|
|
|
/**
|
|
* The XPath Expression scanner, used by nsXFormsXPathParser.
|
|
*
|
|
* @note Should be reimplemented and moved to Transformiix
|
|
*
|
|
*/
|
|
class nsXFormsXPathScanner
|
|
{
|
|
public:
|
|
enum XPATHTOKEN {
|
|
LPARAN, RPARAN, LBRACK, RBRACK, AT, COMMA,
|
|
COLONCOLON, DOT, DOTDOT, SLASH, SLASHSLASH, UNION,
|
|
PLUS, MINUS, EQUAL, NOTEQUAL, LEQUAL, LESS, GEQUAL,
|
|
GREATER, MULTIPLYOPERATOR, WHITESPACE, NUMBER,
|
|
LITERAL, AND, OR, MOD, DIV, NODE, PI, TEXT, COMMENT,
|
|
FUNCTIONNAME, NCNAME, QNAME, VARIABLE, STAR, ANCESTOR,
|
|
ANCESTOR_OR_SELF, ATTRIBUTE, CHILD, DESCENDANT,
|
|
DESCENDANT_OR_SELF, FOLLOWING, FOLLOWING_SIBLING, NAMESPACE,
|
|
PARENT, PRECEDING, PRECEDING_SIBLING, SELF, XPATHEOF, ERRORXPATHTOKEN, NONE
|
|
};
|
|
|
|
private:
|
|
XPATHTOKEN mState, mLast;
|
|
nsAutoString mExpression;
|
|
PRInt32 mOffset, mLength, mSize;
|
|
|
|
PRUnichar PopChar();
|
|
PRUnichar PeekChar();
|
|
PRUnichar PeekChar(PRInt32 offset);
|
|
PRUnichar NextNonWhite();
|
|
PRInt32 GetOffsetForNonWhite();
|
|
|
|
PRBool SolveDiambiguate();
|
|
XPATHTOKEN SolveStar();
|
|
XPATHTOKEN ScanNumber();
|
|
XPATHTOKEN ScanVariable();
|
|
XPATHTOKEN ScanWhitespace();
|
|
XPATHTOKEN ScanLiteral();
|
|
XPATHTOKEN ScanQName();
|
|
XPATHTOKEN ScanNCName();
|
|
|
|
|
|
public:
|
|
nsXFormsXPathScanner();
|
|
nsXFormsXPathScanner(const nsAString& aExpression);
|
|
~nsXFormsXPathScanner();
|
|
|
|
void Init(const nsAString& aExpression);
|
|
XPATHTOKEN NextToken();
|
|
PRInt32 Offset();
|
|
PRInt32 Length();
|
|
void Image(PRInt32& aOffset, PRInt32& aLength);
|
|
PRBool HasMoreTokens();
|
|
nsAString& Expression();
|
|
};
|
|
|
|
#endif
|