You are viewing a plain text version of this content. The canonical link for it is here.
Posted to c-dev@xerces.apache.org by Magnus Strand <ma...@tim.se> on 2003/03/27 10:16:21 UTC
Getting text off all subnodes
Hi,
Is there a method to return all text merged from all text subnodes from
a certain nod in a DOM tree?
I mean if i have this as part of an xml:
<header>It is <b>sunny</b>weather today</header>
I have a DOMNode* to the header element and would like to return all the
text:
"It is sunny weather today"
Regards,
Magnus Strand
System Developer, MSc
Teknik i Media Sverige AB (publ)
Södra Förstadsgatan 2, SE-211 43 Malmö, Sweden
Mobile: +46 704 20 57 16
Direct: +46 40 601 57 16
Office: +46 40 601 57 00
http://www.tim.se
DISCLAIMER: "The information contained in this email and any
attachment is confidential. It is intended only for the named
addressee(s). If you are not the named addressee please notify the
sender immediately and do not disclose, copy or distribute the
contents to any other person other than the intended addressee(s)."
---------------------------------------------------------------------
To unsubscribe, e-mail: xerces-c-dev-unsubscribe@xml.apache.org
For additional commands, e-mail: xerces-c-dev-help@xml.apache.org
RE: Re: Getting text off all subnodes
Posted by Gareth Reakes <ga...@decisionsoft.com>.
Hi,
code looks good to me. If someone volunteers to write a couple of
tests in tests/DOM/DOMTest/DTest.cpp then I will commit it.
Gareth
On Thu, 27 Mar 2003, Erik Rydgren wrote:
> Here is another variant that doesn't copy around the data as much.
>
> const XMLCh* DOMNodeImpl::getTextContent() const
> {
> DOMNode *thisNode = castToNode(this);
> int nContentLength = 0;
> { // Get total length of content
> DOMNodeIteratorImpl nodeIterator(thisNode, 0x00000004, NULL, false); //
> SHOW_TEXT
> DOMNode *currentNode = nodeIterator.nextNode();
> while (currentNode) {
> nContentLength += XMLString::stringLen(currentNode->getNodeValue());
> currentNode = nodeIterator.nextNode();
> }
> }
>
> // Allocate buffer
> XMLCh* pzContentStr = new XMLCh[nContentLength+1];
> *pzContentStr = 0;
>
> { // Fetch content
> DOMNodeIteratorImpl nodeIterator(thisNode, 0x00000004, NULL, false); //
> SHOW_TEXT
> DOMNode *currentNode = nodeIterator.nextNode();
> while (currentNode) {
> XMLString::catString(pzContentStr, currentNode->getNodeValue());
> currentNode = nodeIterator.nextNode();
> }
> }
>
> return pzContentStr;
> }
>
> This of course forces the user to delete the returned string, which is
> non-standard behavour.
> BTW, this is completly untested code. It compiles but not more.
>
> Regards
>
> Erik Rydgren
> Mandarinen systems AB
> Sweden
>
>
> -----Original Message-----
> From: Andreï V. FOMITCHEV [mailto:afomitchev@odixion.com]
> Sent: den 27 mars 2003 15:56
> To: xerces-c-dev@xml.apache.org
> Subject: Re: Re: Getting text off all subnodes
>
>
> a beginning:
>
> String * XML::getTextContent(DOMNode * node)
> {
> String * res = new String("");
>
> DOMNodeList * laListe = node->getChildNodes();
> DOMNode * noeud_courant;
> for(XMLSize_t i = 0; i < laListe->getLength(); i++)
> {
> noeud_courant = laListe->item(i);
> // NodeType
> switch(noeud_courant->getNodeType())
> {
> case DOMNode::ELEMENT_NODE:
> {
> printf("ELEMENT_NODE ");
> String * tampon = getTextContent(noeud_courant);
> *res += *tampon;
> delete tampon;
> break;
> }
> case DOMNode::ATTRIBUTE_NODE:
> //pas de contenu texte ...
> break;
> case DOMNode::TEXT_NODE:
> {
>
> char * tampon =
> XMLString::transcode(noeud_courant->getNodeValue());
> printf("tampon = '%s'\n", tampon);
> if(tampon != NULL)
> *res += String(tampon);
> delete [] tampon;
> break;
> }
> case DOMNode::CDATA_SECTION_NODE:
> case DOMNode::ENTITY_REFERENCE_NODE:
> case DOMNode::ENTITY_NODE:
> case DOMNode::PROCESSING_INSTRUCTION_NODE:
> case DOMNode::COMMENT_NODE:
> case DOMNode::DOCUMENT_NODE:
> case DOMNode::DOCUMENT_TYPE_NODE:
> case DOMNode::DOCUMENT_FRAGMENT_NODE:
> case DOMNode::NOTATION_NODE:
> default :
> printf("Others: %d node\n", noeud_courant->getNodeType());
> break;
> }
> }
> return res;
> }
> where class String is a Al Dev's class.
> This piece of code functions except with the accentuated letters (There
> is always nobody to help me with the accents?).
>
>
> Gareth Reakes wrote:
>
> >Hi,
> > getTextContent does what you want but is unimplemented. If you
> >decide to implement it then we will gladly accept your code :)
> >
> >Gareth
> >
> >
> >
> >
> >On Thu, 27 Mar 2003, Magnus Strand wrote:
> >
> >
> >
> >>Hi,
> >>
> >>Is there a method to return all text merged from all text subnodes from
> >>a certain nod in a DOM tree?
> >>
> >>I mean if i have this as part of an xml:
> >><header>It is <b>sunny</b>weather today</header>
> >>
> >>I have a DOMNode* to the header element and would like to return all the
> >>text:
> >>"It is sunny weather today"
> >>
> >>Regards,
> >>Magnus Strand
> >>
> >>
> --
> Andreï V. FOMITCHEV [Quand faut-il arrêter l'informatique]
> Software R&D Engineer [Lorsque, dans un kilo, on trouve 1024 grammes]
> Odixion, FRANCE
>
>
>
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: xerces-c-dev-unsubscribe@xml.apache.org
> For additional commands, e-mail: xerces-c-dev-help@xml.apache.org
>
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: xerces-c-dev-unsubscribe@xml.apache.org
> For additional commands, e-mail: xerces-c-dev-help@xml.apache.org
>
>
--
Gareth Reakes, Head of Product Development +44-1865-203192
DecisionSoft Limited http://www.decisionsoft.com
XML Development and Services
---------------------------------------------------------------------
To unsubscribe, e-mail: xerces-c-dev-unsubscribe@xml.apache.org
For additional commands, e-mail: xerces-c-dev-help@xml.apache.org
RE: Re: Getting text off all subnodes
Posted by Gareth Reakes <ga...@decisionsoft.com>.
Hi,
thats great if you want to test it. Take a look in
tests/DOM/DOMTest/DTest.cpp. The spec says we have to return an XMLCh so
Eriks is closer.
> const XMLCh* DOMNodeImpl::getTextContent() const
> {
> DOMNode *thisNode = castToNode(this);
> int nContentLength = 0;
> { // Get total length of content
> DOMNodeIteratorImpl nodeIterator(thisNode, 0x00000004, NULL, false);
> //
> SHOW_TEXT
> DOMNode *currentNode = nodeIterator.nextNode();
> while (currentNode) {
> nContentLength +=
> XMLString::stringLen(currentNode->getNodeValue());
> currentNode = nodeIterator.nextNode();
> }
> }
>
> // Allocate buffer
> XMLCh* pzContentStr = new XMLCh[nContentLength+1];
> *pzContentStr = 0;
>
> { // Fetch content
> DOMNodeIteratorImpl nodeIterator(thisNode, 0x00000004, NULL, false);
> //
> SHOW_TEXT
> DOMNode *currentNode = nodeIterator.nextNode();
> while (currentNode) {
> XMLString::catString(pzContentStr, currentNode->getNodeValue());
> currentNode = nodeIterator.nextNode();
> }
> }
>
> return pzContentStr;
//to get arround the memory problem we can do
XMLCh *stringCopy =
((DOMDocumentImpl*)getOwnerDocument())->cloneString(pzContentStr);
delete pzContentStr;
return stringCopy;
//the user does not have to delete this memory
> }
give us a shout if you need any help.
Gareth
--
Gareth Reakes, Head of Product Development +44-1865-203192
DecisionSoft Limited http://www.decisionsoft.com
XML Development and Services
---------------------------------------------------------------------
To unsubscribe, e-mail: xerces-c-dev-unsubscribe@xml.apache.org
For additional commands, e-mail: xerces-c-dev-help@xml.apache.org
RE: Re: Getting text off all subnodes
Posted by Magnus Strand <ma...@tim.se>.
Thanks Erik and Andreï,
It is just what I need.
I will soon test it.
Regards,
Magnus Strand
System Developer, MSc
Teknik i Media Sverige AB (publ)
Södra Förstadsgatan 2, SE-211 43 Malmö, Sweden
Mobile: +46 704 20 57 16
Direct: +46 40 601 57 16
Office: +46 40 601 57 00
http://www.tim.se
DISCLAIMER: "The information contained in this email and any
attachment is confidential. It is intended only for the named
addressee(s). If you are not the named addressee please notify the
sender immediately and do not disclose, copy or distribute the
contents to any other person other than the intended addressee(s)."
-----Original Message-----
From: Erik Rydgren [mailto:erik.rydgren@mandarinen.se]
Sent: den 27 mars 2003 17:55
To: xerces-c-dev@xml.apache.org; xerces-c-dev@xml.apache.org
Subject: RE: Re: Getting text off all subnodes
Here is another variant that doesn't copy around the data as much.
const XMLCh* DOMNodeImpl::getTextContent() const
{
DOMNode *thisNode = castToNode(this);
int nContentLength = 0;
{ // Get total length of content
DOMNodeIteratorImpl nodeIterator(thisNode, 0x00000004, NULL, false);
//
SHOW_TEXT
DOMNode *currentNode = nodeIterator.nextNode();
while (currentNode) {
nContentLength +=
XMLString::stringLen(currentNode->getNodeValue());
currentNode = nodeIterator.nextNode();
}
}
// Allocate buffer
XMLCh* pzContentStr = new XMLCh[nContentLength+1];
*pzContentStr = 0;
{ // Fetch content
DOMNodeIteratorImpl nodeIterator(thisNode, 0x00000004, NULL, false);
//
SHOW_TEXT
DOMNode *currentNode = nodeIterator.nextNode();
while (currentNode) {
XMLString::catString(pzContentStr, currentNode->getNodeValue());
currentNode = nodeIterator.nextNode();
}
}
return pzContentStr;
}
This of course forces the user to delete the returned string, which is
non-standard behavour.
BTW, this is completly untested code. It compiles but not more.
Regards
Erik Rydgren
Mandarinen systems AB
Sweden
-----Original Message-----
From: Andreï V. FOMITCHEV [mailto:afomitchev@odixion.com]
Sent: den 27 mars 2003 15:56
To: xerces-c-dev@xml.apache.org
Subject: Re: Re: Getting text off all subnodes
a beginning:
String * XML::getTextContent(DOMNode * node)
{
String * res = new String("");
DOMNodeList * laListe = node->getChildNodes();
DOMNode * noeud_courant;
for(XMLSize_t i = 0; i < laListe->getLength(); i++)
{
noeud_courant = laListe->item(i);
// NodeType
switch(noeud_courant->getNodeType())
{
case DOMNode::ELEMENT_NODE:
{
printf("ELEMENT_NODE ");
String * tampon = getTextContent(noeud_courant);
*res += *tampon;
delete tampon;
break;
}
case DOMNode::ATTRIBUTE_NODE:
//pas de contenu texte ...
break;
case DOMNode::TEXT_NODE:
{
char * tampon =
XMLString::transcode(noeud_courant->getNodeValue());
printf("tampon = '%s'\n", tampon);
if(tampon != NULL)
*res += String(tampon);
delete [] tampon;
break;
}
case DOMNode::CDATA_SECTION_NODE:
case DOMNode::ENTITY_REFERENCE_NODE:
case DOMNode::ENTITY_NODE:
case DOMNode::PROCESSING_INSTRUCTION_NODE:
case DOMNode::COMMENT_NODE:
case DOMNode::DOCUMENT_NODE:
case DOMNode::DOCUMENT_TYPE_NODE:
case DOMNode::DOCUMENT_FRAGMENT_NODE:
case DOMNode::NOTATION_NODE:
default :
printf("Others: %d node\n", noeud_courant->getNodeType());
break;
}
}
return res;
}
where class String is a Al Dev's class.
This piece of code functions except with the accentuated letters (There
is always nobody to help me with the accents?).
Gareth Reakes wrote:
>Hi,
> getTextContent does what you want but is unimplemented. If you
>decide to implement it then we will gladly accept your code :)
>
>Gareth
>
>
>
>
>On Thu, 27 Mar 2003, Magnus Strand wrote:
>
>
>
>>Hi,
>>
>>Is there a method to return all text merged from all text subnodes
from
>>a certain nod in a DOM tree?
>>
>>I mean if i have this as part of an xml:
>><header>It is <b>sunny</b>weather today</header>
>>
>>I have a DOMNode* to the header element and would like to return all
the
>>text:
>>"It is sunny weather today"
>>
>>Regards,
>>Magnus Strand
>>
>>
--
Andreï V. FOMITCHEV [Quand faut-il arrêter l'informatique]
Software R&D Engineer [Lorsque, dans un kilo, on trouve 1024 grammes]
Odixion, FRANCE
---------------------------------------------------------------------
To unsubscribe, e-mail: xerces-c-dev-unsubscribe@xml.apache.org
For additional commands, e-mail: xerces-c-dev-help@xml.apache.org
---------------------------------------------------------------------
To unsubscribe, e-mail: xerces-c-dev-unsubscribe@xml.apache.org
For additional commands, e-mail: xerces-c-dev-help@xml.apache.org
---------------------------------------------------------------------
To unsubscribe, e-mail: xerces-c-dev-unsubscribe@xml.apache.org
For additional commands, e-mail: xerces-c-dev-help@xml.apache.org
RE: Re: Getting text off all subnodes
Posted by Erik Rydgren <er...@mandarinen.se>.
Here is another variant that doesn't copy around the data as much.
const XMLCh* DOMNodeImpl::getTextContent() const
{
DOMNode *thisNode = castToNode(this);
int nContentLength = 0;
{ // Get total length of content
DOMNodeIteratorImpl nodeIterator(thisNode, 0x00000004, NULL, false); //
SHOW_TEXT
DOMNode *currentNode = nodeIterator.nextNode();
while (currentNode) {
nContentLength += XMLString::stringLen(currentNode->getNodeValue());
currentNode = nodeIterator.nextNode();
}
}
// Allocate buffer
XMLCh* pzContentStr = new XMLCh[nContentLength+1];
*pzContentStr = 0;
{ // Fetch content
DOMNodeIteratorImpl nodeIterator(thisNode, 0x00000004, NULL, false); //
SHOW_TEXT
DOMNode *currentNode = nodeIterator.nextNode();
while (currentNode) {
XMLString::catString(pzContentStr, currentNode->getNodeValue());
currentNode = nodeIterator.nextNode();
}
}
return pzContentStr;
}
This of course forces the user to delete the returned string, which is
non-standard behavour.
BTW, this is completly untested code. It compiles but not more.
Regards
Erik Rydgren
Mandarinen systems AB
Sweden
-----Original Message-----
From: Andreï V. FOMITCHEV [mailto:afomitchev@odixion.com]
Sent: den 27 mars 2003 15:56
To: xerces-c-dev@xml.apache.org
Subject: Re: Re: Getting text off all subnodes
a beginning:
String * XML::getTextContent(DOMNode * node)
{
String * res = new String("");
DOMNodeList * laListe = node->getChildNodes();
DOMNode * noeud_courant;
for(XMLSize_t i = 0; i < laListe->getLength(); i++)
{
noeud_courant = laListe->item(i);
// NodeType
switch(noeud_courant->getNodeType())
{
case DOMNode::ELEMENT_NODE:
{
printf("ELEMENT_NODE ");
String * tampon = getTextContent(noeud_courant);
*res += *tampon;
delete tampon;
break;
}
case DOMNode::ATTRIBUTE_NODE:
//pas de contenu texte ...
break;
case DOMNode::TEXT_NODE:
{
char * tampon =
XMLString::transcode(noeud_courant->getNodeValue());
printf("tampon = '%s'\n", tampon);
if(tampon != NULL)
*res += String(tampon);
delete [] tampon;
break;
}
case DOMNode::CDATA_SECTION_NODE:
case DOMNode::ENTITY_REFERENCE_NODE:
case DOMNode::ENTITY_NODE:
case DOMNode::PROCESSING_INSTRUCTION_NODE:
case DOMNode::COMMENT_NODE:
case DOMNode::DOCUMENT_NODE:
case DOMNode::DOCUMENT_TYPE_NODE:
case DOMNode::DOCUMENT_FRAGMENT_NODE:
case DOMNode::NOTATION_NODE:
default :
printf("Others: %d node\n", noeud_courant->getNodeType());
break;
}
}
return res;
}
where class String is a Al Dev's class.
This piece of code functions except with the accentuated letters (There
is always nobody to help me with the accents?).
Gareth Reakes wrote:
>Hi,
> getTextContent does what you want but is unimplemented. If you
>decide to implement it then we will gladly accept your code :)
>
>Gareth
>
>
>
>
>On Thu, 27 Mar 2003, Magnus Strand wrote:
>
>
>
>>Hi,
>>
>>Is there a method to return all text merged from all text subnodes from
>>a certain nod in a DOM tree?
>>
>>I mean if i have this as part of an xml:
>><header>It is <b>sunny</b>weather today</header>
>>
>>I have a DOMNode* to the header element and would like to return all the
>>text:
>>"It is sunny weather today"
>>
>>Regards,
>>Magnus Strand
>>
>>
--
Andreï V. FOMITCHEV [Quand faut-il arrêter l'informatique]
Software R&D Engineer [Lorsque, dans un kilo, on trouve 1024 grammes]
Odixion, FRANCE
---------------------------------------------------------------------
To unsubscribe, e-mail: xerces-c-dev-unsubscribe@xml.apache.org
For additional commands, e-mail: xerces-c-dev-help@xml.apache.org
---------------------------------------------------------------------
To unsubscribe, e-mail: xerces-c-dev-unsubscribe@xml.apache.org
For additional commands, e-mail: xerces-c-dev-help@xml.apache.org
Re: Re: Getting text off all subnodes
Posted by "Andreï V. FOMITCHEV" <af...@odixion.com>.
a beginning:
String * XML::getTextContent(DOMNode * node)
{
String * res = new String("");
DOMNodeList * laListe = node->getChildNodes();
DOMNode * noeud_courant;
for(XMLSize_t i = 0; i < laListe->getLength(); i++)
{
noeud_courant = laListe->item(i);
// NodeType
switch(noeud_courant->getNodeType())
{
case DOMNode::ELEMENT_NODE:
{
printf("ELEMENT_NODE ");
String * tampon = getTextContent(noeud_courant);
*res += *tampon;
delete tampon;
break;
}
case DOMNode::ATTRIBUTE_NODE:
//pas de contenu texte ...
break;
case DOMNode::TEXT_NODE:
{
char * tampon =
XMLString::transcode(noeud_courant->getNodeValue());
printf("tampon = '%s'\n", tampon);
if(tampon != NULL)
*res += String(tampon);
delete [] tampon;
break;
}
case DOMNode::CDATA_SECTION_NODE:
case DOMNode::ENTITY_REFERENCE_NODE:
case DOMNode::ENTITY_NODE:
case DOMNode::PROCESSING_INSTRUCTION_NODE:
case DOMNode::COMMENT_NODE:
case DOMNode::DOCUMENT_NODE:
case DOMNode::DOCUMENT_TYPE_NODE:
case DOMNode::DOCUMENT_FRAGMENT_NODE:
case DOMNode::NOTATION_NODE:
default :
printf("Others: %d node\n", noeud_courant->getNodeType());
break;
}
}
return res;
}
where class String is a Al Dev's class.
This piece of code functions except with the accentuated letters (There
is always nobody to help me with the accents?).
Gareth Reakes wrote:
>Hi,
> getTextContent does what you want but is unimplemented. If you
>decide to implement it then we will gladly accept your code :)
>
>Gareth
>
>
>
>
>On Thu, 27 Mar 2003, Magnus Strand wrote:
>
>
>
>>Hi,
>>
>>Is there a method to return all text merged from all text subnodes from
>>a certain nod in a DOM tree?
>>
>>I mean if i have this as part of an xml:
>><header>It is <b>sunny</b>weather today</header>
>>
>>I have a DOMNode* to the header element and would like to return all the
>>text:
>>"It is sunny weather today"
>>
>>Regards,
>>Magnus Strand
>>
>>
--
Andreï V. FOMITCHEV [Quand faut-il arrêter l'informatique]
Software R&D Engineer [Lorsque, dans un kilo, on trouve 1024 grammes]
Odixion, FRANCE
---------------------------------------------------------------------
To unsubscribe, e-mail: xerces-c-dev-unsubscribe@xml.apache.org
For additional commands, e-mail: xerces-c-dev-help@xml.apache.org
Re: Getting text off all subnodes
Posted by Gareth Reakes <ga...@decisionsoft.com>.
Hi,
getTextContent does what you want but is unimplemented. If you
decide to implement it then we will gladly accept your code :)
Gareth
On Thu, 27 Mar 2003, Magnus Strand wrote:
> Hi,
>
> Is there a method to return all text merged from all text subnodes from
> a certain nod in a DOM tree?
>
> I mean if i have this as part of an xml:
> <header>It is <b>sunny</b>weather today</header>
>
> I have a DOMNode* to the header element and would like to return all the
> text:
> "It is sunny weather today"
>
> Regards,
> Magnus Strand
>
--
Gareth Reakes, Head of Product Development +44-1865-203192
DecisionSoft Limited http://www.decisionsoft.com
XML Development and Services
---------------------------------------------------------------------
To unsubscribe, e-mail: xerces-c-dev-unsubscribe@xml.apache.org
For additional commands, e-mail: xerces-c-dev-help@xml.apache.org