gecko-dev/dom/xslt/xml/txXMLUtils.h

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C++

/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/* 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/. */
/**
* An XML Utility class
**/
#ifndef MITRE_XMLUTILS_H
#define MITRE_XMLUTILS_H
#include "txCore.h"
#include "nsDependentSubstring.h"
#include "txXPathNode.h"
#define kExpatSeparatorChar 0xFFFF
extern "C" int MOZ_XMLIsLetter(const char* ptr);
extern "C" int MOZ_XMLIsNCNameChar(const char* ptr);
class nsIAtom;
class XMLUtils {
public:
static nsresult splitExpatName(const char16_t *aExpatName,
nsIAtom **aPrefix, nsIAtom **aLocalName,
int32_t* aNameSpaceID);
static nsresult splitQName(const nsAString& aName, nsIAtom** aPrefix,
nsIAtom** aLocalName);
/*
* Returns true if the given character is whitespace.
*/
static bool isWhitespace(const char16_t& aChar)
{
return (aChar <= ' ' &&
(aChar == ' ' || aChar == '\r' ||
aChar == '\n'|| aChar == '\t'));
}
/**
* Returns true if the given string has only whitespace characters
*/
static bool isWhitespace(const nsAFlatString& aText);
/**
* Normalizes the value of a XML processingInstruction
**/
static void normalizePIValue(nsAString& attValue);
/**
* Returns true if the given string is a valid XML QName
*/
static bool isValidQName(const nsAFlatString& aQName,
const char16_t** aColon);
/**
* Returns true if the given character represents an Alpha letter
*/
static bool isLetter(char16_t aChar)
{
return !!MOZ_XMLIsLetter(reinterpret_cast<const char*>(&aChar));
}
/**
* Returns true if the given character is an allowable NCName character
*/
static bool isNCNameChar(char16_t aChar)
{
return !!MOZ_XMLIsNCNameChar(reinterpret_cast<const char*>(&aChar));
}
/*
* Walks up the document tree and returns true if the closest xml:space
* attribute is "preserve"
*/
static bool getXMLSpacePreserve(const txXPathNode& aNode);
};
#endif