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Copy pathrevxml.cpp
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3130 lines (2831 loc) · 85.3 KB
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/* Copyright (C) 2003-2015 LiveCode 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 <libxml/xpath.h>
#include <libxslt/transform.h>
#include <libxslt/xsltutils.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,
XPATHERR_BADDOCCONTEXT,
XPATHERR_CANTRESOLVE,
XPATHERR_BADDOCPOINTER,
};
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",
"xmlerr, couldn't assign document context",
"xmlerr, can't resolve xpath",
"xmlerr, bad document pointer",
};
//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);
// MDW-2013-07-09: [[ RevXmlXPath ]]
if (NULL != curobject->GetXPathContext())
xmlXPathFreeContext(curobject->GetXPathContext());
// MDW-2013-09-04: [[ RevXmlXslt ]]
if (NULL != curobject->GetXsltContext())
xsltFreeStylesheet(curobject->GetXsltContext());
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(const char *messagename, const char *tmessage)
{
int retvalue = 0;
SetGlobal("xmlvariable",tmessage,&retvalue);
char mcmessage[256];
// MDW-2013-07-09: [[ RevXmlXPath ]]
sprintf(mcmessage,"global xmlvariable;try;send \"%s xmlvariable\" to current card of stack the topstack;catch errno;end try;put 0 into xmlvariable",messagename);
SendCardMessage(mcmessage, &retvalue);
}
bool stringToBool(const 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 (nothrow) 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
// MDW-2013-06-22: [[ RevXmlXPath ]]
#define REVXML_VERSIONSTRING "6.5.0"
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;
if (nargs < 2){
*error = True;
result = istrdup(xmlerrors[XMLERR_BADARGUMENTS]);
}
else{
CXMLDocument *newdoc = new (nothrow) CXMLDocument;
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)
{
*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 (nothrow) 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;
}
free(tfile);
free(t_native_path);
delete[] t_resolved_path; /* Allocated with new[] */
}
*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);
if (p_source_tree == p_destination_tree)
{
// 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]);
}
else
{
if (!t_destination_element . MoveRemoteElement(&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;