From d6e254cdf9a5f68b1cb3c4f718a00510662c306f Mon Sep 17 00:00:00 2001
From: "Unknown (roddey)" <dev-null@apache.org>
Date: Tue, 30 Nov 1999 20:28:05 +0000
Subject: [PATCH] New sample which shows how to enumerate the contents of a
DTDValidator to get to the decl objects inside.
git-svn-id: https://svn.apache.org/repos/asf/xerces/c/trunk@171435 13f79535-47bb-0310-9956-ffa450edef68
---
samples/EnumVal/EnumVal.cpp | 331 ++++++++++++++++++++++++++++++++++++
1 file changed, 331 insertions(+)
create mode 100644 samples/EnumVal/EnumVal.cpp
diff --git a/samples/EnumVal/EnumVal.cpp b/samples/EnumVal/EnumVal.cpp
new file mode 100644
index 000000000..09dc0509e
--- /dev/null
+++ b/samples/EnumVal/EnumVal.cpp
@@ -0,0 +1,331 @@
+/*
+ * (C) Copyright IBM Corp. 1999 All rights reserved.
+ *
+ * US Government Users Restricted Rights Use, duplication or
+ * disclosure restricted by GSA ADP Schedule Contract with IBM Corp.
+ *
+ * The program is provided "as is" without any warranty express or
+ * implied, including the warranty of non-infringement and the implied
+ * warranties of merchantibility and fitness for a particular purpose.
+ * IBM will not be liable for any damages suffered by you as a result
+ * of using the Program. In no event will IBM be liable for any
+ * special, indirect or consequential damages or lost profits even if
+ * IBM has been advised of the possibility of their occurrence. IBM
+ * will not be liable for any third party claims against you.
+ */
+
+/**
+ * @version Revision: %M% %I% %W% %Q%
+ */
+
+
+// ---------------------------------------------------------------------------
+// Includes
+// ---------------------------------------------------------------------------
+#include <util/NameIdPool.hpp>
+#include <util/PlatformUtils.hpp>
+#include <framework/XMLValidator.hpp>
+#include <parsers/SAXParser.hpp>
+#include <validators/DTD/DTDValidator.hpp>
+#include <iostream.h>
+#include <stdlib.h>
+#include <string.h>
+
+
+// ---------------------------------------------------------------------------
+// Forward references
+// ---------------------------------------------------------------------------
+static void usage();
+
+
+
+// ---------------------------------------------------------------------------
+// This is a simple class that lets us do easy (though not terribly efficient)
+// trancoding of XMLCh data to local code page for display.
+// ---------------------------------------------------------------------------
+class StrX
+{
+public :
+ // -----------------------------------------------------------------------
+ // Constructors and Destructor
+ // -----------------------------------------------------------------------
+ StrX(const XMLCh* const toTranscode, const unsigned int len = 0) :
+
+ fLocalForm(0)
+ {
+ // Call the private transcoding method
+ transcode(toTranscode, len);
+ }
+
+ ~StrX()
+ {
+ delete [] fLocalForm;
+ }
+
+
+ // -----------------------------------------------------------------------
+ // Getter methods
+ // -----------------------------------------------------------------------
+ const char* localForm() const
+ {
+ return fLocalForm;
+ }
+
+
+private :
+ // -----------------------------------------------------------------------
+ // Private helper methods
+ // -----------------------------------------------------------------------
+ void transcode (const XMLCh* const toTranscode, const unsigned int len);
+
+
+ // -----------------------------------------------------------------------
+ // Private data members
+ //
+ // fLocalForm
+ // This is the local code page form of the string.
+ // -----------------------------------------------------------------------
+ char* fLocalForm;
+};
+
+inline ostream& operator<<(ostream& target, const StrX& toDump)
+{
+ target << toDump.localForm();
+ return target;
+}
+
+
+// ---------------------------------------------------------------------------
+// Program entry point
+// ---------------------------------------------------------------------------
+int main(int argc, char* args[])
+{
+ // Initialize the XML4C system
+ try
+ {
+ XMLPlatformUtils::Initialize();
+ }
+
+ catch (const XMLException& toCatch)
+ {
+ cerr << "Error during initialization! Message:\n"
+ << StrX(toCatch.getMessage()) << endl;
+ return 1;
+ }
+
+ // We only have one required parameter, which is the file to process
+ if (argc < 2)
+ {
+ usage();
+ return -1;
+ }
+ const char* xmlFile = args[1];
+ bool doValidation = false;
+
+ // Check for some special cases values of the parameter
+ if (!strncmp(xmlFile, "-?", 2))
+ {
+ usage();
+ return 0;
+ }
+ else if (!strncmp(xmlFile, "-v", 2))
+ {
+ doValidation = true;
+ if (argc < 3)
+ {
+ usage();
+ return -1;
+ }
+ xmlFile = args[2];
+ }
+ else if (xmlFile[0] == '-')
+ {
+ usage();
+ return -1;
+ }
+
+ //
+ // Create a DTD validator to be used for our validation work. Then create
+ // a SAX parser object and pass it our validator. Then, according to what
+ // we were told on the command line, set it to validate or not. He owns
+ // the validator, so we have to allocate it.
+ //
+ DTDValidator* valToUse = new DTDValidator;
+ SAXParser parser(valToUse);
+ parser.setDoValidation(doValidation);
+
+ //
+ // Get the starting time and kick off the parse of the indicated
+ // file. Catch any exceptions that might propogate out of it.
+ //
+ try
+ {
+ parser.parse(xmlFile);
+ }
+
+ catch (const XMLException& e)
+ {
+ cerr << "\nError during parsing: '" << xmlFile << "'\n"
+ << "Exception message is: \n"
+ << StrX(e.getMessage()) << "\n" << endl;
+ return -1;
+ }
+
+ //
+ // Now we will get an enumerator for the element pool from the validator
+ // and enumerate the elements, printing them as we go. For each element
+ // we get an enumerator for its attributes and print them also.
+ //
+ NameIdPoolEnumerator<DTDElementDecl> elemEnum = valToUse->getElemEnumerator();
+ if (elemEnum.hasMoreElements())
+ {
+ cout << "\nELEMENTS:\n----------------------------\n";
+ while(elemEnum.hasMoreElements())
+ {
+ const DTDElementDecl& curElem = elemEnum.nextElement();
+ cout << " Name: " << StrX(curElem.getFullName()) << "\n";
+
+ cout << " Content Model: "
+ << StrX(curElem.getFormattedContentModel(*valToUse))
+ << "\n";
+
+ // Get an enumerator for this guy's attributes if any
+ if (curElem.hasAttDefs())
+ {
+ cout << " Attributes:\n";
+ XMLAttDefList& attList = curElem.getAttDefList();
+ while (attList.hasMoreElements())
+ {
+ const XMLAttDef& curAttDef = attList.nextElement();
+ cout << " Name:" << StrX(curAttDef.getFullName())
+ << ", Type: ";
+
+ // Get the type and display it
+ const XMLAttDef::AttTypes type = curAttDef.getType();
+ switch(type)
+ {
+ case XMLAttDef::CData :
+ cout << "CDATA";
+ break;
+
+ case XMLAttDef::ID :
+ cout << "ID";
+ break;
+
+ case XMLAttDef::IDRef :
+ case XMLAttDef::IDRefs :
+ cout << "IDREF(S)";
+ break;
+
+ case XMLAttDef::Entity :
+ case XMLAttDef::Entities :
+ cout << "ENTITY(IES)";
+ break;
+
+ case XMLAttDef::NmToken :
+ case XMLAttDef::NmTokens :
+ cout << "NMTOKEN(S)";
+ break;
+
+ case XMLAttDef::Notation :
+ cout << "NOTATION";
+ break;
+
+ case XMLAttDef::Enumeration :
+ cout << "ENUMERATION";
+ break;
+ }
+
+ cout << "\n";
+ }
+ }
+ cout << endl;
+ }
+ }
+ else
+ {
+ cout << "The validator has no elements to display\n" << endl;
+ }
+ return 0;
+}
+
+
+// ---------------------------------------------------------------------------
+// Local helper methods
+// ---------------------------------------------------------------------------
+static void usage()
+{
+ cout << "\nUsage:\n"
+ " EnumVal [-v] <XML file>\n"
+ " -v Do a validating parse. Defaults to non-validating.\n"
+ "This program parses a file, then shows how to enumerate the"
+ "contents of the validator pools\n" << endl;
+}
+
+
+// ---------------------------------------------------------------------------
+// StrX: Private helper methods
+// ---------------------------------------------------------------------------
+void StrX::transcode(const XMLCh* const toTranscode, const unsigned int len)
+{
+ // Short circuit if its a null pointer
+ if (!toTranscode)
+ {
+ fLocalForm = new char[1];
+ fLocalForm[0] = 0;
+ return;
+ }
+
+ // See if our XMLCh and wchar_t as the same on this platform
+ const bool isSameSize = (sizeof(XMLCh) == sizeof(wchar_t));
+
+ //
+ // Get the actual number of chars. If the passed len is zero, its null
+ // terminated. Else we have to use the len.
+ //
+ wchar_t realLen = (wchar_t)len;
+ if (!realLen)
+ {
+ //
+ // We cannot just assume we can use wcslen() because we don't know
+ // if our XMLCh is the same as wchar_t on this platform.
+ //
+ const XMLCh* tmpPtr = toTranscode;
+ while (*(tmpPtr++))
+ realLen++;
+ }
+
+ //
+ // If either the passed length was non-zero or our char sizes are not
+ // same, we have to use a temp buffer. Since this is common in these
+ // samples, we just do it anyway.
+ //
+ wchar_t* tmpSource = new wchar_t[realLen + 1];
+ if (isSameSize)
+ {
+ memcpy(tmpSource, toTranscode, realLen * sizeof(wchar_t));
+ }
+ else
+ {
+ for (unsigned int index = 0; index < realLen; index++)
+ tmpSource[index] = (wchar_t)toTranscode[index];
+ }
+ tmpSource[realLen] = 0;
+
+ // See now many chars we need to transcode this guy
+ const unsigned int targetLen = ::wcstombs(0, tmpSource, 0);
+
+ // Allocate out storage member
+ fLocalForm = new char[targetLen + 1];
+
+ //
+ // And transcode our temp source buffer to the local buffer. Cap it
+ // off since the converter won't do it (because the null is beyond
+ // where the target will fill up.)
+ //
+ ::wcstombs(fLocalForm, tmpSource, targetLen);
+ fLocalForm[targetLen] = 0;
+
+ // Don't forget to delete our temp buffer
+ delete [] tmpSource;
+}
--
GitLab