/* Copyright (C) 2003-2013 Runtime Revolution Ltd.

This file is part of LiveCode.

LiveCode is free software; you can redistribute it and/or modify it under

the terms of the GNU General Public License v3 as published by the Free

Software Foundation.

LiveCode is distributed in the hope that it will be useful, but WITHOUT ANY

WARRANTY; without even the implied warranty of MERCHANTABILITY or

FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License

for more details.

You should have received a copy of the GNU General Public License

along with LiveCode. If not see <http://www.gnu.org/licenses/>. */

#include <cstdlib>

#include <cstdio>

#include <cmath>

#include <ctime>

#include <vector>

#include <revolution/external.h>

#include <revolution/support.h>

#include "cxml.h"

#define istrdup strdup

#define INTSTRSIZE 16

#ifdef _MACOSX

char *_strrev(char *str)

{

int SmallIndex = 0;

int BigIndex = strlen(str) - 1;

while (SmallIndex < BigIndex) {

char Temp = str[SmallIndex];

str[SmallIndex] = str[BigIndex];

str[BigIndex] = Temp;

SmallIndex++;

BigIndex--;

}

return str;

}

char *strlwr(char *str)

{

while (*str)

{

*str = tolower(*str);

str++;

}

return str;

}

#endif

#if defined _LINUX || defined(TARGET_SUBPLATFORM_IPHONE) || defined(TARGET_SUBPLATFORM_ANDROID)

#define stricmp strcasecmp

char *_strrev(char * str)

{

int SmallIndex = 0;

int BigIndex = strlen(str) - 1;

while (SmallIndex < BigIndex) {

char Temp = str[SmallIndex];

str[SmallIndex] = str[BigIndex];

str[BigIndex] = Temp;

SmallIndex++;

BigIndex--;

}

return str;

}

char *strlwr(char *str)

{

while (*str)

{

*str = tolower(*str);

str++;

}

return str;

}

#endif

using namespace std;

typedef vector<CXMLDocument *> VXMLDocList;

enum XMLErrs

{

XMLERR_BADARGUMENTS,

XMLERR_BADXML,

XMLERR_BADELEMENT,

XMLERR_BADATTRIBUTE,

XMLERR_BADDOCID,

XMLERR_BADDTD,

XMLERR_LICENSE,

XMLERR_BADMOVE,

XMLERR_BADCOPY,

XMLERR_NOFILEPERMS,

};

const char *xmlerrors[] = {

"xmlerr, invalid number of arguments",

"xmlerr, can't parse xml",

"xmlerr, can't find element",

"xmlerr, can't find attribute",

"xmlerr, bad document id",

"xmlerr, validation error",

"xmlerr, restricted under current license",

"xmlerr, can't move node into itself",

"xmlerr, can't copy node into itself",

"xmlerr, file access not permitted",

};

//HS-2010-10-11: [[ Bug 7586 ]] Reinstate libxml2 to create name spaces. Implement new liveCode commands to suppress name space creation.

Bool XML_ProcessNameSpaces = True;

//A class wrapped around a vector object used to keep a list of parsed XML documents

class XMLDocumentList

{

public:

//when class terminates make sure to free all documents

~XMLDocumentList() {clear();}

//loop through, and free all documents

void clear()

{

if (doclist.empty())

return;

VXMLDocList::iterator theIterator;

for (theIterator = doclist.begin(); theIterator != doclist.end(); theIterator++){

CXMLDocument *curobject = (CXMLDocument *)(*theIterator);

delete curobject;

}

doclist.clear();

}

VXMLDocList *getList() {return &doclist;}

//remove document from list by document id.

Bool erase(const int fid)

{

VXMLDocList::iterator theIterator;

for (theIterator = doclist.begin(); theIterator != doclist.end(); theIterator++){

CXMLDocument *curobject = (CXMLDocument *)(*theIterator);

if (curobject->GetID() == fid){

delete curobject;

doclist.erase(theIterator);

return True;

}

}

return False;

}

//find CXMLDocument by document id

CXMLDocument *find(const int fid)

{

VXMLDocList::iterator theIterator;

for (theIterator = doclist.begin(); theIterator != doclist.end(); theIterator++){

CXMLDocument *curobject = (CXMLDocument *)(*theIterator);

if (curobject->GetID() == fid)

return curobject;

}

return NULL;

}

//return size of list

int getsize() {return doclist.size();}

//add xml document to list

void add(CXMLDocument *newxmldoc) {doclist.push_back(newxmldoc);}

protected:

VXMLDocList doclist;

};

XMLDocumentList doclist;

//DUMMY FUNCTIONS TO KEEP LIBXML FROM DISPLAYING A CONSOLE WINDOW

void REVXML_INIT()

{

}

void REVXML_QUIT()

{

doclist.clear();

}

//------------------------------------UTILITY FUNCTIONS--------------------------

void DispatchMetaCardMessage(char *messagename,char *tmessage)

{

int retvalue = 0;

SetGlobal("xmlvariable",tmessage,&retvalue);

char mcmessage[256];

sprintf(mcmessage,"global xmlvariable;try;send \"%s xmlvariable\" to current card of stack the topstack;catch errno;end try;put 0 into extvariable",messagename);

SendCardMessage(mcmessage, &retvalue);

}

bool stringToBool(char *p_string)

{

if (stricmp(p_string, "true") == 0)

return true;

else

return false;

}

//------------------------------------XML MESSAGES----------------------------------------

/*MESSAGE: startDocument - Called when starting parsing document*/

void CB_startDocument()

{

DispatchMetaCardMessage("revxmlStartTree","");

}

/*MESSAGE: endDocument - Called when finished parsing document*/

void CB_endDocument()

{

DispatchMetaCardMessage("revxmlEndTree","");

}

/*MESSAGE: startElement attlist - Called when an element's opening tag is encountered, with

a return delimited list of attribute names and values*/

void CB_startElement(const char *name, const char **attributes)

{

char *buffer = NULL;

int bufsize = 0,buflen = 0;

if (attributes) {

const char **cur;

for(cur = attributes; cur && *cur; cur++) {

util_concatstring((char *)*cur, strlen(*cur), buffer, buflen , bufsize);

util_concatstring(",", 1 ,buffer, buflen , bufsize);

cur++;

util_concatstring((char *)*cur, strlen(*cur), buffer, buflen , bufsize);

util_concatstring("\n", 1 ,buffer, buflen , bufsize);

}

}

if (buflen)

buffer[buflen-1] = '\0';

int retvalue = 0;

char mcmessage[256];

SetGlobal("xmlvariable",buffer,&retvalue);

sprintf(mcmessage,"global xmlvariable;send \"revStartXMLNode %s,xmlvariable\" to current card of stack the topstack;put 0 into xmlvariable",

name);

SendCardMessage(mcmessage, &retvalue);

}

/*MESSAGE: endElement - Called when an element's closing tag is encountered, or immediately\par

tab after start_element() if the tag is in <tag/> format.*/

void CB_endElement(const char *name)

{

DispatchMetaCardMessage("revEndXMLNode",(char *)name);

}

//MESSAGE: XMLElementData data - sent when element data is encountered between tags

void CB_elementData(const char *data, int length)

{

char *buffer = new char[length+1];

memcpy(buffer, data, length);

buffer[length] = '\0';

DispatchMetaCardMessage("revStartXMLData",(char *)buffer);

delete buffer;

}

static Bool REVXMLinited = False;

#define simpleparse(a,b,c) (((b > a) | (c < a))?True:False)

#ifndef REVDB

static int computehash(char *keystr)

{

unsigned int value = 0;

int length = strlen(keystr);

const char *sptr = keystr;

while (length--){

value += tolower(*sptr++);

value = value * 3;

}

return value & 96000 -1;

}

#else

extern int computehash(char *keystr);

extern char * _strrev(char * str);

extern char *strlwr(char *str);

#endif

#define REVXML_VERSIONSTRING "2.9.0"

void REVXML_Version(char *args[], int nargs, char **retstring,

Bool *pass, Bool *error)

{

char *result = NULL;

*error = False;

*pass = False;

result = istrdup(REVXML_VERSIONSTRING);

*retstring = (result != NULL ? result : (char *)calloc(1,1));

}

void XML_Init(char *args[], int nargs, char **retstring,

Bool *pass, Bool *error)

{

int count;

static Bool littlecheat = False;

char *buffer;

int passkey = 0;

char lencode[] = "clubfvhsqkjpymziadgxonrev";

*pass = False;

if (nargs == 2){*error = False;

buffer = istrdup(args[0]);

strlwr(buffer);

_strrev(buffer);

int keylen = strlen(buffer);

if (simpleparse(keylen,5,40) == True || littlecheat == True)

{*retstring = istrdup("FALSE"); free(buffer);return;}

for (count=0;count<keylen;count++)

if (simpleparse(buffer[count]-97,0,26) == True){

*retstring = istrdup("FALSE");

free(buffer);

return;

}

else buffer[count] = lencode[buffer[count]-97];

passkey = computehash(buffer);

free(buffer);

if (atoi(args[1]) == passkey || REVXMLinited == True) {

*retstring = istrdup("TRUE");

REVXMLinited = True;

}

else {

*retstring = istrdup("FALSE");

littlecheat = True;

}

}

else *error = True; *retstring = (char *)calloc(1, 1);

}

//------------------------------------DOCUMENT CALLBACKS--------------------------------------

/*

Function: XML_NewDocument - Parse XML document/data

Input: [0]=xml data

[1] = flag to determine whether to try parse xml data that is not well formed

(ie. be forgiving)

Output: XML document ID. On error, 'can't parse xml' and error message.

Example: if xml_newdocument(data) is a number then beep

*/

void XML_NewDocument(char *args[], int nargs, char **retstring,

Bool *pass, Bool *error)

{

*pass = False;

*error = False;

char *result = NULL;

CXMLDocument *newdoc = new CXMLDocument;

if (nargs < 2){

*error = True;

result = istrdup(xmlerrors[XMLERR_BADARGUMENTS]);

}

else{

Bool wellformed = util_strnicmp(args[1],"TRUE",4) == 0;

Bool buildtree = True;

Bool sendmessages = False;

if (nargs >= 3)

buildtree = util_strnicmp(args[2],"TRUE",4) == 0;

if (nargs >= 4)

sendmessages = util_strnicmp(args[3],"TRUE",4) == 0;

CXMLDocument::allowcallbacks = sendmessages;

CXMLDocument::buildtree = buildtree;

if (newdoc->Read(args[0],strlen(args[0]),wellformed)){

if (CXMLDocument::buildtree){

doclist.add(newdoc);

unsigned int docid = newdoc->GetID();

result = (char *)malloc(INTSTRSIZE);

sprintf(result,"%d",docid);

}

else {

delete newdoc;

result = (char *)istrdup("0");

}

}

else {

result = (char *)malloc(1024);

sprintf(result,"%s\n%s",xmlerrors[XMLERR_BADXML],newdoc->GetError());

delete newdoc;

}

}

*retstring = (result != NULL ? result : (char *)calloc(1,1));

}

//HS-2010-10-11: [[ Bug 7586 ]] Reinstate libxml2 to create name spaces. Implement new liveCode commands to suppress name space creation.

// See the comments of Function XML_NewDocument for detailed information of the operation

void XML_NewDocumentNNS(char *args[], int nargs, char **retstring, Bool *pass, Bool *error)

{

XML_ProcessNameSpaces = False;

XML_NewDocument(args, nargs, retstring, pass, error);

}

//HS-2010-10-11: [[ Bug 7586 ]] Reinstate libxml2 to create name spaces. Implement new liveCode commands to suppress name space creation.

// See the comments of Function XML_NewDocument for detailed information of the operation

void XML_NewDocumentNS(char *args[], int nargs, char **retstring, Bool *pass, Bool *error)

{

XML_ProcessNameSpaces = True;

XML_NewDocument(args, nargs, retstring, pass, error);

}

/*Command: XML_AddDTD - Add DTD to xml document

Input: [0]=document id

[1] = dtd data

Output: On error, DTD parser or validation error.

Example: xml_AddDTD docid,dtddata

*/

void XML_AddDTD(char *args[], int nargs, char **retstring,

Bool *pass, Bool *error)

{

*pass = False;

*error = False;

static int dtdcounter = 0;

char *result = NULL;

if (dtdcounter)

if (nargs != 2){

*error = True;

result = istrdup(xmlerrors[XMLERR_BADARGUMENTS]);

}

else{

int docid = atoi(args[0]);

CXMLDocument *tdoc = doclist.find(docid);

if (!tdoc)

result = istrdup(xmlerrors[XMLERR_BADDOCID]);

else if (!tdoc->AddDTD(args[1], strlen(args[1]))) {

result = (char *)malloc(1024);

sprintf(result,"%s\n%s",xmlerrors[XMLERR_BADDTD],tdoc->GetError());

}

}

*retstring = (result != NULL ? result : (char *)calloc(1,1));

}

/*Command: XML_ValidateDTD - validate DTD against xml document

Input: [0]=document id

[1] = dtd data

Output: empty if validated, or validation error.

Example: if xml_ValidateDTD(docid,dtddata) is empty then put "validated"

*/

void XML_ValidateDTD(char *args[], int nargs, char **retstring,

Bool *pass, Bool *error)

{

static int dtdcounter = 0;

*pass = False;

*error = False;

char *result = NULL;

if (nargs != 2){

*error = True;

result = istrdup(xmlerrors[XMLERR_BADARGUMENTS]);

}

else{

int docid = atoi(args[0]);

CXMLDocument *tdoc = doclist.find(docid);

if (!tdoc)

result = istrdup(xmlerrors[XMLERR_BADDOCID]);

else if (!tdoc->ValidateDTD(args[1], strlen(args[1]))) {

result = (char *)malloc(1024);

sprintf(result,"%s\n%s",xmlerrors[XMLERR_BADDTD],tdoc->GetError());

}

}

*retstring = (result != NULL ? result : (char *)calloc(1,1));

}

/*Function: XML_NewDocumentFromFile - Parse XML file

Input: [0]=xml data

[1] = flag to determine whether to try parse xml data that is not well formed

(ie. be forgiving)

Output: XML document ID. On error, 'can't parse xml' and error message.

Example: if xml_newdocument(data) is a number then beep

*/

void XML_NewDocumentFromFile(char *args[], int nargs, char **retstring,

Bool *pass, Bool *error)

{

*pass = False;

*error = False;

char *result = NULL;

if (nargs < 2)

{

*error = True;

result = istrdup(xmlerrors[XMLERR_BADARGUMENTS]);

}

if (!*error)

{

if (!SecurityCanAccessFile(args[0]))

{

*error = True;

result = istrdup(xmlerrors[XMLERR_NOFILEPERMS]);

}

}

if (!*error)

{

Bool wellformed = util_strnicmp(args[1],"TRUE",4) == 0;

CXMLDocument *newdoc = new CXMLDocument;

Bool buildtree = True;

Bool sendmessages = False;

if (nargs >= 3)

buildtree = util_strnicmp(args[2],"TRUE",4) == 0;

if (nargs >= 4)

sendmessages = util_strnicmp(args[3],"TRUE",4) == 0;

CXMLDocument::allowcallbacks = sendmessages;

CXMLDocument::buildtree = buildtree;

char *tfile = istrdup(args[0]);

// OK-2008-01-08 : Bug 5702. Resolve ~ characters in the path

char *t_resolved_path;

t_resolved_path = os_path_resolve(tfile);

// OK-2007-12-18 : Bug 4905. New path_to_native function declared which allocates a new path buffer.

char *t_native_path;

t_native_path = os_path_to_native(t_resolved_path);

if (newdoc->ReadFile(t_native_path, wellformed))

{

if (CXMLDocument::buildtree)

{

doclist.add(newdoc);

unsigned int docid = newdoc->GetID();

result = (char *)malloc(INTSTRSIZE);

sprintf(result,"%d",docid);

}

else

{

delete newdoc;

result = (char *)istrdup("0");

}

}

else

{

result = (char *)malloc(1024);

sprintf(result,"%s\n%s",xmlerrors[XMLERR_BADXML],newdoc->GetError());

delete newdoc;

}

delete tfile;

free(t_native_path);

free(t_resolved_path);

}

*retstring = (result != NULL ? result : (char *)calloc(1,1));

}

//HS-2010-10-11: [[ Bug 7586 ]] Reinstate libxml2 to create name spaces. Implement new liveCode commands to suppress name space creation.

// See the comments of Function XML_NewDocumentFromFile for detailed information of the operation

void XML_NewDocumentFromFileNNS(char *args[], int nargs, char **retstring, Bool *pass, Bool *error)

{

XML_ProcessNameSpaces = False;

XML_NewDocumentFromFile(args, nargs, retstring, pass, error);

}

//HS-2010-10-11: [[ Bug 7586 ]] Reinstate libxml2 to create name spaces. Implement new liveCode commands to suppress name space creation.

// See the comments of Function XML_NewDocumentFromFile for detailed information of the operation

void XML_NewDocumentFromFileNS(char *args[], int nargs, char **retstring, Bool *pass, Bool *error)

{

XML_ProcessNameSpaces = True;

XML_NewDocumentFromFile(args, nargs, retstring, pass, error);

}

/*

Function: XML_GetDocText - Dump contents of XML document or XML element

Input: [0]=xml document id

[1]=element path (if empty dumps contents of entire document)

Output: XML formatted data

Example: put XML_GetDocText(docid,"") into field "xmlcontents"

*/

void XML_GetDocText(char *args[], int nargs, char **retstring,

Bool *pass, Bool *error)

{

*pass = False;

*error = False;

char *result = NULL;

if (nargs < 1){

*error = True;

result = istrdup(xmlerrors[XMLERR_BADARGUMENTS]);

}

else{

int docid = atoi(args[0]);

Bool isformatted = False;

if (nargs ==3 && util_strnicmp(args[2],"TRUE",4) == 0)

isformatted = True;

CXMLDocument *tdoc = doclist.find(docid);

if (!tdoc)

result = istrdup(xmlerrors[XMLERR_BADDOCID]);

else {

int doclength;

CXMLElement telement;

if (nargs > 1 && *args[1]){

if (!tdoc->GetElementByPath(&telement,args[1]))

result = istrdup(xmlerrors[XMLERR_BADELEMENT]);

else

telement.Write(&result,&doclength,isformatted);

}

else

tdoc->Write(&result,&doclength,isformatted);

}

}

*retstring = (result != NULL ? result : (char *)calloc(1,1));

}

/*

Command: XML_FreeDocument - Delete/Release XML Document

Input: [0]=xml document id

Output: empty or bad doc id error

Example: XML_FreeDocument docid

*/

void XML_FreeDocument(char *args[], int nargs, char **retstring,

Bool *pass, Bool *error)

{

*pass = False;

*error = False;

char *result = NULL;

if (nargs != 1){

*error = True;

result = istrdup(xmlerrors[XMLERR_BADARGUMENTS]);

}

else{

int docid = atoi(*args);

if (doclist.find(docid)) doclist.erase(docid);

else result = istrdup(xmlerrors[XMLERR_BADDOCID]);

}

*retstring = (result != NULL ? result : (char *)calloc(1,1));

}

/*

Command: XML_BuildTree - set true to build xml tree

Input: [0]=TRUE or FALSE

Output: empty or bad doc id error

Example: XML_BuildTree true

*/

/*void XML_BuildTree(char *args[], int nargs, char **retstring,

Bool *pass, Bool *error)

{

*pass = False;

*error = False;

char *result = NULL;

if (nargs != 1){

*error = True;

result = istrdup(xmlerrors[XMLERR_BADARGUMENTS]);

}

else

CXMLDocument::buildtree = util_strnicmp(*args,"TRUE",4) == 0;

*retstring = (result != NULL ? result : (char *)calloc(1,1));

}*/

/*

Command: XML_AllowCallbacks - set true to recieve messages while parsing

Input: [0]=TRUE or FALSE

Output: empty or bad doc id error

Example: XML_AllowCallbacks true

*/

/*void XML_AllowCallbacks(char *args[], int nargs, char **retstring,

Bool *pass, Bool *error)

{

*pass = False;

*error = False;

char *result = NULL;

if (nargs != 1){

*error = True;

result = istrdup(xmlerrors[XMLERR_BADARGUMENTS]);

}

else

CXMLDocument::allowcallbacks = util_strnicmp(*args,"TRUE",4) == 0;

*retstring = (result != NULL ? result : (char *)calloc(1,1));;

}*/

/*

Function: XML_Documents - Returns list of loaded xml documents

Input: none

Output: return delimited list of xml document id

Example: put XML_Documents() into doclist

*/

void XML_Documents(char *args[], int nargs, char **retstring,

Bool *pass, Bool *error)

{

char *result = NULL;

*error = False;

*pass = False;

VXMLDocList *vdoclist = doclist.getList();

VXMLDocList::iterator theIterator;

if (!vdoclist->empty()){

result = (char *)malloc(vdoclist->size() * INTSTRSIZE);

result[0] = '\0';

int numdocs = 0;

for (theIterator = vdoclist->begin(); theIterator != vdoclist->end(); theIterator++){

CXMLDocument *tdoc = (CXMLDocument *)(*theIterator);

char idbuffer[INTSTRSIZE];

sprintf(idbuffer,"%d",tdoc->GetID());

strcat(result,idbuffer);

if (++numdocs != vdoclist->size())

strcat(result,"\n");

}

}

*retstring = (result != NULL ? result : (char *)calloc(1,1));

}

/*

Command: XML_FreeAll - unload/release all xml documents

Input: none

Output: none

Example: XML_FreeAll

*/

void XML_FreeAll(char *args[], int nargs, char **retstring,

Bool *pass, Bool *error)

{

char *result = NULL;

*error = False;

*pass = False;

doclist.clear();

*retstring = (result != NULL ? result : (char *)calloc(1,1));

}

//-----------------------ELEMENT CALLBACKS-----------------------------------------

/*

Command: XML_AddElement - Add a child element and sets its value

Input: [0]=xml document id

[1]=parent element path

[2]=new child element name

[3]=new child element value

[4]=[ 'before' or 'after' ]

Output: full path of new child element or bad doc id error

Example: XML_AddElement docid,elementpath,"newelement",newvalue

*/

void XML_AddElement(char *args[], int nargs, char **retstring,

Bool *pass, Bool *error)

{

*pass = False;

*error = False;

char *result = NULL;

bool before;

if (nargs == 5)

{

nargs = 4;

if (strcasecmp(args[4], "before") == 0)

before = true;

else if (strcasecmp(args[4], "after") == 0)

before = false;

else

nargs = 5;

}

else

before = false;

if (nargs != 4){

*error = True;

result = istrdup(xmlerrors[XMLERR_BADARGUMENTS]);

}

else{

int docid = atoi(args[0]);

CXMLDocument *tdoc = doclist.find(docid);

CXMLElement telement;

if (!tdoc)

result = istrdup(xmlerrors[XMLERR_BADDOCID]);

else {

if (!tdoc->GetElementByPath(&telement,args[1]))

result = istrdup(xmlerrors[XMLERR_BADELEMENT]);

else {

CXMLElement newelement;

if (!telement.AddChild(args[2],args[3],&newelement, before))

result = istrdup(xmlerrors[XMLERR_BADELEMENT]);

else

result = newelement.GetPath();

}

}

}

*retstring = (result != NULL ? result : (char *)calloc(1,1));

}

/*

Command: XML_InsertElement - Insert an element before the specified

element as a sibling

Input: [0]=xml document id

[1]=next sibling element

[2]=new element name

[3]=new element value

Output: full path of new sibling element or bad doc id error

Example: XML_InsertElement docid,elementpath,"newelement",newvalue

*/

void XML_InsertElement(char *args[], int nargs, char **retstring,

Bool *pass, Bool *error)

{

*pass = False;

*error = False;

char *result = NULL;

bool before;

if (nargs == 5)

{

nargs = 4;

if (strcasecmp(args[4], "before") == 0)

before = true;

else if (strcasecmp(args[4], "after") == 0)

before = false;

else

nargs = 5;

}

else

before = false;

if (nargs != 4){

*error = True;

result = istrdup(xmlerrors[XMLERR_BADARGUMENTS]);

}

else{

int docid = atoi(args[0]);

CXMLDocument *tdoc = doclist.find(docid);

CXMLElement telement;

if (!tdoc)

result = istrdup(xmlerrors[XMLERR_BADDOCID]);

else {

if (!tdoc->GetElementByPath(&telement,args[1]))

result = istrdup(xmlerrors[XMLERR_BADELEMENT]);

else {

CXMLElement newelement;

if (!telement.AddSibling(args[2],args[3],&newelement, before))

result = istrdup(xmlerrors[XMLERR_BADELEMENT]);

else

result = newelement.GetPath();

}

}

}

*retstring = (result != NULL ? result : (char *)calloc(1,1));

}

char *XML_ManipulateElement(int p_source_tree, char *p_source_node, int p_destination_tree, char *p_destination_node, bool p_copy, bool p_before, bool p_sibling)

{

// Locate the source and destination documents in the list of open xml docs.

CXMLDocument *t_source_doc;

t_source_doc = doclist . find(p_source_tree);

if (t_source_doc == NULL)

return istrdup(xmlerrors[XMLERR_BADDOCID]);

CXMLDocument *t_destination_doc;

t_destination_doc = doclist . find(p_destination_tree);

if (t_destination_doc == NULL)

return istrdup(xmlerrors[XMLERR_BADDOCID]);

// Locate the source and destination elements in their respective documents

CXMLElement t_source_element;

if (!t_source_doc -> GetElementByPath(&t_source_element, p_source_node))

return istrdup(xmlerrors[XMLERR_BADELEMENT]);

CXMLElement t_destination_element;

if (!t_destination_doc -> GetElementByPath(&t_destination_element, p_destination_node))

return istrdup(xmlerrors[XMLERR_BADELEMENT]);

// If we are copying, then we first duplicate the node before moving it

if (p_copy)

t_source_element . CopyElement(&t_source_element, true);

// Now move the source element to the new location, returning an error if fails

if (!t_destination_element . MoveElement(&t_source_element, p_sibling, p_before))

return istrdup(xmlerrors[XMLERR_BADCOPY]);

// If succeeded, we return the new path of the moved element.

return t_source_element . GetPath();

}

// [0] Doc ID

// [1] Source Element

// [2] Target Element

// [3] before/after [after]

// [4] sibling/child [child]

//

void XML_MoveElement(char *args[], int nargs, char **retstring, Bool *pass, Bool *error)

{

*pass = False;

*error = False;

char *result = NULL;

bool before;

if (nargs >= 4)

{

nargs -= 1;

if (strcasecmp(args[3], "before") == 0)

before = true;

else if (strcasecmp(args[3], "after") == 0)

before = false;

else

nargs = 6;

}

else

before = false;

bool sibling;

if (nargs >= 4)

{

nargs -= 1;

if (strcasecmp(args[4], "sibling") == 0)

sibling = true;

else if (strcasecmp(args[4], "child") == 0)

sibling = false;

else

nargs = 6;

}

else

sibling = false;

if (nargs != 3)

{

*error = True;

result = istrdup(xmlerrors[XMLERR_BADARGUMENTS]);

}

else

{

int t_doc_id;

t_doc_id = atoi(args[0]);

result = XML_ManipulateElement(t_doc_id, args[1], t_doc_id, args[2], false, before, sibling);

}

*retstring = (result != NULL ? result : (char *)calloc(1,1));

}

// [0] Doc ID

// [1] Source Element

// [2] Target Element

// [3] before/after [after]

// [4] sibling/child [child]

//

void XML_CopyElement(char *args[], int nargs, char **retstring, Bool *pass, Bool *error)

{

*pass = False;

*error = False;

char *result = NULL;

bool before;

if (nargs >= 4)

{

nargs -= 1;

if (strcasecmp(args[3], "before") == 0)

before = true;

else if (strcasecmp(args[3], "after") == 0)

before = false;

else

nargs = 6;

}

else

before = false;

bool sibling;

if (nargs >= 4)

{

nargs -= 1;

if (strcasecmp(args[4], "sibling") == 0)

sibling = true;

else if (strcasecmp(args[4], "child") == 0)

sibling = false;

else

nargs = 6;

}

else

sibling = false;

if (nargs != 3)

{

*error = True;

result = istrdup(xmlerrors[XMLERR_BADARGUMENTS]);

}

else

{

int t_doc_id;

t_doc_id = atoi(args[0]);

result = XML_ManipulateElement(t_doc_id, args[1], t_doc_id, args[2], true, before, sibling);

}

*retstring = (result != NULL ? result : (char *)calloc(1,1));

}

void XML_CopyRemoteElement(char *args[], int nargs, char **retstring, Bool *pass, Bool *error)