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libxml2/doc/html/libxml-c14n.html
Daniel Veillard 4826743d16 preparing the release of 2.4.26 updated and rebuilt the documentation 
* configure.in: preparing the release of 2.4.26
* doc/*: updated and rebuilt the documentation
Daniel
2002-10-18 11:21:38 +00:00

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<HTML
><HEAD
><TITLE
>c14n</TITLE
><META
NAME="GENERATOR"
CONTENT="Modular DocBook HTML Stylesheet Version 1.76b+
"><LINK
REL="HOME"
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><BODY
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CLASS="NAVHEADER"
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WIDTH="25%"
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ALIGN="left"
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HREF="libxml-catalog.html"
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></DIV
><H1
><A
NAME="LIBXML-C14N">c14n</H1
><DIV
CLASS="REFNAMEDIV"
><A
NAME="AEN20734"
></A
><H2
>Name</H2
>c14n&nbsp;--&nbsp;</DIV
><DIV
CLASS="REFSYNOPSISDIV"
><A
NAME="AEN20737"><H2
>Synopsis</H2
><TABLE
BORDER="0"
BGCOLOR="#D6E8FF"
WIDTH="100%"
CELLPADDING="6"
><TR
><TD
><PRE
CLASS="SYNOPSIS"
>&#13;
int <A
HREF="libxml-c14n.html#XMLC14NDOCSAVETO"
>xmlC14NDocSaveTo</A
> (<A
HREF="libxml-tree.html#XMLDOCPTR"
>xmlDocPtr</A
> doc,
<A
HREF="libxml-xpath.html#XMLNODESETPTR"
>xmlNodeSetPtr</A
> nodes,
int exclusive,
<A
HREF="libxml-tree.html#XMLCHAR"
>xmlChar</A
> **inclusive_ns_prefixes,
int with_comments,
<A
HREF="libxml-tree.html#XMLOUTPUTBUFFERPTR"
>xmlOutputBufferPtr</A
> buf);
int <A
HREF="libxml-c14n.html#XMLC14NDOCDUMPMEMORY"
>xmlC14NDocDumpMemory</A
> (<A
HREF="libxml-tree.html#XMLDOCPTR"
>xmlDocPtr</A
> doc,
<A
HREF="libxml-xpath.html#XMLNODESETPTR"
>xmlNodeSetPtr</A
> nodes,
int exclusive,
<A
HREF="libxml-tree.html#XMLCHAR"
>xmlChar</A
> **inclusive_ns_prefixes,
int with_comments,
<A
HREF="libxml-tree.html#XMLCHAR"
>xmlChar</A
> **doc_txt_ptr);
int <A
HREF="libxml-c14n.html#XMLC14NDOCSAVE"
>xmlC14NDocSave</A
> (<A
HREF="libxml-tree.html#XMLDOCPTR"
>xmlDocPtr</A
> doc,
<A
HREF="libxml-xpath.html#XMLNODESETPTR"
>xmlNodeSetPtr</A
> nodes,
int exclusive,
<A
HREF="libxml-tree.html#XMLCHAR"
>xmlChar</A
> **inclusive_ns_prefixes,
int with_comments,
const char *filename,
int compression);
int (<A
HREF="libxml-c14n.html#XMLC14NISVISIBLECALLBACK"
>*xmlC14NIsVisibleCallback</A
>) (void *user_data,
<A
HREF="libxml-tree.html#XMLNODEPTR"
>xmlNodePtr</A
> node,
<A
HREF="libxml-tree.html#XMLNODEPTR"
>xmlNodePtr</A
> parent);
int <A
HREF="libxml-c14n.html#XMLC14NEXECUTE"
>xmlC14NExecute</A
> (<A
HREF="libxml-tree.html#XMLDOCPTR"
>xmlDocPtr</A
> doc,
<A
HREF="libxml-c14n.html#XMLC14NISVISIBLECALLBACK"
>xmlC14NIsVisibleCallback</A
> is_visible_callback,
void *user_data,
int exclusive,
<A
HREF="libxml-tree.html#XMLCHAR"
>xmlChar</A
> **inclusive_ns_prefixes,
int with_comments,
<A
HREF="libxml-tree.html#XMLOUTPUTBUFFERPTR"
>xmlOutputBufferPtr</A
> buf);</PRE
></TD
></TR
></TABLE
></DIV
><DIV
CLASS="REFSECT1"
><A
NAME="AEN20762"
></A
><H2
>Description</H2
><P
></P
></DIV
><DIV
CLASS="REFSECT1"
><A
NAME="AEN20765"
></A
><H2
>Details</H2
><DIV
CLASS="REFSECT2"
><A
NAME="AEN20767"
></A
><H3
><A
NAME="XMLC14NDOCSAVETO"
></A
>xmlC14NDocSaveTo ()</H3
><TABLE
BORDER="0"
BGCOLOR="#D6E8FF"
WIDTH="100%"
CELLPADDING="6"
><TR
><TD
><PRE
CLASS="PROGRAMLISTING"
>int xmlC14NDocSaveTo (<A
HREF="libxml-tree.html#XMLDOCPTR"
>xmlDocPtr</A
> doc,
<A
HREF="libxml-xpath.html#XMLNODESETPTR"
>xmlNodeSetPtr</A
> nodes,
int exclusive,
<A
HREF="libxml-tree.html#XMLCHAR"
>xmlChar</A
> **inclusive_ns_prefixes,
int with_comments,
<A
HREF="libxml-tree.html#XMLOUTPUTBUFFERPTR"
>xmlOutputBufferPtr</A
> buf);</PRE
></TD
></TR
></TABLE
><P
>Dumps the canonized image of given XML document into the provided buffer.
For details see "Canonical XML" (http://www.w3.org/TR/xml-c14n) or
"Exclusive XML Canonicalization" (http://www.w3.org/TR/xml-exc-c14n)</P
><P
></P
><DIV
CLASS="INFORMALTABLE"
><A
NAME="AEN20777"><P
></P
><TABLE
BORDER="0"
WIDTH="100%"
BGCOLOR="#FFD0D0"
CELLSPACING="0"
CELLPADDING="4"
CLASS="CALSTABLE"
><TBODY
><TR
><TD
WIDTH="20%"
ALIGN="RIGHT"
VALIGN="TOP"
><TT
CLASS="PARAMETER"
><I
>doc</I
></TT
>&nbsp;:</TD
><TD
WIDTH="80%"
ALIGN="LEFT"
VALIGN="TOP"
> the XML document for canonization</TD
></TR
><TR
><TD
WIDTH="20%"
ALIGN="RIGHT"
VALIGN="TOP"
><TT
CLASS="PARAMETER"
><I
>nodes</I
></TT
>&nbsp;:</TD
><TD
WIDTH="80%"
ALIGN="LEFT"
VALIGN="TOP"
> the nodes set to be included in the canonized image
or NULL if all document nodes should be included</TD
></TR
><TR
><TD
WIDTH="20%"
ALIGN="RIGHT"
VALIGN="TOP"
><TT
CLASS="PARAMETER"
><I
>exclusive</I
></TT
>&nbsp;:</TD
><TD
WIDTH="80%"
ALIGN="LEFT"
VALIGN="TOP"
> the exclusive flag (0 - non-exclusive canonicalization;
otherwise - exclusive canonicalization)</TD
></TR
><TR
><TD
WIDTH="20%"
ALIGN="RIGHT"
VALIGN="TOP"
><TT
CLASS="PARAMETER"
><I
>inclusive_ns_prefixes</I
></TT
>&nbsp;:</TD
><TD
WIDTH="80%"
ALIGN="LEFT"
VALIGN="TOP"
> the list of inclusive namespace prefixes
ended with a NULL or NULL if there is no
inclusive namespaces (only for exclusive
canonicalization, ignored otherwise)</TD
></TR
><TR
><TD
WIDTH="20%"
ALIGN="RIGHT"
VALIGN="TOP"
><TT
CLASS="PARAMETER"
><I
>with_comments</I
></TT
>&nbsp;:</TD
><TD
WIDTH="80%"
ALIGN="LEFT"
VALIGN="TOP"
> include comments in the result (!=0) or not (==0)</TD
></TR
><TR
><TD
WIDTH="20%"
ALIGN="RIGHT"
VALIGN="TOP"
><TT
CLASS="PARAMETER"
><I
>buf</I
></TT
>&nbsp;:</TD
><TD
WIDTH="80%"
ALIGN="LEFT"
VALIGN="TOP"
> the output buffer to store canonical XML; this
buffer MUST have encoder==NULL because C14N requires
UTF-8 output</TD
></TR
><TR
><TD
WIDTH="20%"
ALIGN="RIGHT"
VALIGN="TOP"
><SPAN
CLASS="emphasis"
><I
CLASS="EMPHASIS"
>Returns</I
></SPAN
> :</TD
><TD
WIDTH="80%"
ALIGN="LEFT"
VALIGN="TOP"
>non-negative value on success or a negative value on fail </TD
></TR
></TBODY
></TABLE
><P
></P
></DIV
></DIV
><HR><DIV
CLASS="REFSECT2"
><A
NAME="AEN20810"
></A
><H3
><A
NAME="XMLC14NDOCDUMPMEMORY"
></A
>xmlC14NDocDumpMemory ()</H3
><TABLE
BORDER="0"
BGCOLOR="#D6E8FF"
WIDTH="100%"
CELLPADDING="6"
><TR
><TD
><PRE
CLASS="PROGRAMLISTING"
>int xmlC14NDocDumpMemory (<A
HREF="libxml-tree.html#XMLDOCPTR"
>xmlDocPtr</A
> doc,
<A
HREF="libxml-xpath.html#XMLNODESETPTR"
>xmlNodeSetPtr</A
> nodes,
int exclusive,
<A
HREF="libxml-tree.html#XMLCHAR"
>xmlChar</A
> **inclusive_ns_prefixes,
int with_comments,
<A
HREF="libxml-tree.html#XMLCHAR"
>xmlChar</A
> **doc_txt_ptr);</PRE
></TD
></TR
></TABLE
><P
>Dumps the canonized image of given XML document into memory.
For details see "Canonical XML" (http://www.w3.org/TR/xml-c14n) or
"Exclusive XML Canonicalization" (http://www.w3.org/TR/xml-exc-c14n)</P
><P
></P
><DIV
CLASS="INFORMALTABLE"
><A
NAME="AEN20820"><P
></P
><TABLE
BORDER="0"
WIDTH="100%"
BGCOLOR="#FFD0D0"
CELLSPACING="0"
CELLPADDING="4"
CLASS="CALSTABLE"
><TBODY
><TR
><TD
WIDTH="20%"
ALIGN="RIGHT"
VALIGN="TOP"
><TT
CLASS="PARAMETER"
><I
>doc</I
></TT
>&nbsp;:</TD
><TD
WIDTH="80%"
ALIGN="LEFT"
VALIGN="TOP"
> the XML document for canonization</TD
></TR
><TR
><TD
WIDTH="20%"
ALIGN="RIGHT"
VALIGN="TOP"
><TT
CLASS="PARAMETER"
><I
>nodes</I
></TT
>&nbsp;:</TD
><TD
WIDTH="80%"
ALIGN="LEFT"
VALIGN="TOP"
> the nodes set to be included in the canonized image
or NULL if all document nodes should be included</TD
></TR
><TR
><TD
WIDTH="20%"
ALIGN="RIGHT"
VALIGN="TOP"
><TT
CLASS="PARAMETER"
><I
>exclusive</I
></TT
>&nbsp;:</TD
><TD
WIDTH="80%"
ALIGN="LEFT"
VALIGN="TOP"
> the exclusive flag (0 - non-exclusive canonicalization;
otherwise - exclusive canonicalization)</TD
></TR
><TR
><TD
WIDTH="20%"
ALIGN="RIGHT"
VALIGN="TOP"
><TT
CLASS="PARAMETER"
><I
>inclusive_ns_prefixes</I
></TT
>&nbsp;:</TD
><TD
WIDTH="80%"
ALIGN="LEFT"
VALIGN="TOP"
> the list of inclusive namespace prefixes
ended with a NULL or NULL if there is no
inclusive namespaces (only for exclusive
canonicalization, ignored otherwise)</TD
></TR
><TR
><TD
WIDTH="20%"
ALIGN="RIGHT"
VALIGN="TOP"
><TT
CLASS="PARAMETER"
><I
>with_comments</I
></TT
>&nbsp;:</TD
><TD
WIDTH="80%"
ALIGN="LEFT"
VALIGN="TOP"
> include comments in the result (!=0) or not (==0)</TD
></TR
><TR
><TD
WIDTH="20%"
ALIGN="RIGHT"
VALIGN="TOP"
><TT
CLASS="PARAMETER"
><I
>doc_txt_ptr</I
></TT
>&nbsp;:</TD
><TD
WIDTH="80%"
ALIGN="LEFT"
VALIGN="TOP"
> the memory pointer for allocated canonical XML text;
the caller of this functions is responsible for calling
<A
HREF="libxml-globals.html#XMLFREE"
>xmlFree</A
>() to free allocated memory </TD
></TR
><TR
><TD
WIDTH="20%"
ALIGN="RIGHT"
VALIGN="TOP"
><SPAN
CLASS="emphasis"
><I
CLASS="EMPHASIS"
>Returns</I
></SPAN
> :</TD
><TD
WIDTH="80%"
ALIGN="LEFT"
VALIGN="TOP"
>the number of bytes written on success or a negative value on fail </TD
></TR
></TBODY
></TABLE
><P
></P
></DIV
></DIV
><HR><DIV
CLASS="REFSECT2"
><A
NAME="AEN20854"
></A
><H3
><A
NAME="XMLC14NDOCSAVE"
></A
>xmlC14NDocSave ()</H3
><TABLE
BORDER="0"
BGCOLOR="#D6E8FF"
WIDTH="100%"
CELLPADDING="6"
><TR
><TD
><PRE
CLASS="PROGRAMLISTING"
>int xmlC14NDocSave (<A
HREF="libxml-tree.html#XMLDOCPTR"
>xmlDocPtr</A
> doc,
<A
HREF="libxml-xpath.html#XMLNODESETPTR"
>xmlNodeSetPtr</A
> nodes,
int exclusive,
<A
HREF="libxml-tree.html#XMLCHAR"
>xmlChar</A
> **inclusive_ns_prefixes,
int with_comments,
const char *filename,
int compression);</PRE
></TD
></TR
></TABLE
><P
>Dumps the canonized image of given XML document into the file.
For details see "Canonical XML" (http://www.w3.org/TR/xml-c14n) or
"Exclusive XML Canonicalization" (http://www.w3.org/TR/xml-exc-c14n)</P
><P
></P
><DIV
CLASS="INFORMALTABLE"
><A
NAME="AEN20863"><P
></P
><TABLE
BORDER="0"
WIDTH="100%"
BGCOLOR="#FFD0D0"
CELLSPACING="0"
CELLPADDING="4"
CLASS="CALSTABLE"
><TBODY
><TR
><TD
WIDTH="20%"
ALIGN="RIGHT"
VALIGN="TOP"
><TT
CLASS="PARAMETER"
><I
>doc</I
></TT
>&nbsp;:</TD
><TD
WIDTH="80%"
ALIGN="LEFT"
VALIGN="TOP"
> the XML document for canonization</TD
></TR
><TR
><TD
WIDTH="20%"
ALIGN="RIGHT"
VALIGN="TOP"
><TT
CLASS="PARAMETER"
><I
>nodes</I
></TT
>&nbsp;:</TD
><TD
WIDTH="80%"
ALIGN="LEFT"
VALIGN="TOP"
> the nodes set to be included in the canonized image
or NULL if all document nodes should be included</TD
></TR
><TR
><TD
WIDTH="20%"
ALIGN="RIGHT"
VALIGN="TOP"
><TT
CLASS="PARAMETER"
><I
>exclusive</I
></TT
>&nbsp;:</TD
><TD
WIDTH="80%"
ALIGN="LEFT"
VALIGN="TOP"
> the exclusive flag (0 - non-exclusive canonicalization;
otherwise - exclusive canonicalization)</TD
></TR
><TR
><TD
WIDTH="20%"
ALIGN="RIGHT"
VALIGN="TOP"
><TT
CLASS="PARAMETER"
><I
>inclusive_ns_prefixes</I
></TT
>&nbsp;:</TD
><TD
WIDTH="80%"
ALIGN="LEFT"
VALIGN="TOP"
> the list of inclusive namespace prefixes
ended with a NULL or NULL if there is no
inclusive namespaces (only for exclusive
canonicalization, ignored otherwise)</TD
></TR
><TR
><TD
WIDTH="20%"
ALIGN="RIGHT"
VALIGN="TOP"
><TT
CLASS="PARAMETER"
><I
>with_comments</I
></TT
>&nbsp;:</TD
><TD
WIDTH="80%"
ALIGN="LEFT"
VALIGN="TOP"
> include comments in the result (!=0) or not (==0)</TD
></TR
><TR
><TD
WIDTH="20%"
ALIGN="RIGHT"
VALIGN="TOP"
><TT
CLASS="PARAMETER"
><I
>filename</I
></TT
>&nbsp;:</TD
><TD
WIDTH="80%"
ALIGN="LEFT"
VALIGN="TOP"
> the filename to store canonical XML image</TD
></TR
><TR
><TD
WIDTH="20%"
ALIGN="RIGHT"
VALIGN="TOP"
><TT
CLASS="PARAMETER"
><I
>compression</I
></TT
>&nbsp;:</TD
><TD
WIDTH="80%"
ALIGN="LEFT"
VALIGN="TOP"
> the compression level (zlib requred):
-1 - libxml default,
0 - uncompressed,
&gt;0 - compression level</TD
></TR
><TR
><TD
WIDTH="20%"
ALIGN="RIGHT"
VALIGN="TOP"
><SPAN
CLASS="emphasis"
><I
CLASS="EMPHASIS"
>Returns</I
></SPAN
> :</TD
><TD
WIDTH="80%"
ALIGN="LEFT"
VALIGN="TOP"
>the number of bytes written success or a negative value on fail </TD
></TR
></TBODY
></TABLE
><P
></P
></DIV
></DIV
><HR><DIV
CLASS="REFSECT2"
><A
NAME="AEN20900"
></A
><H3
><A
NAME="XMLC14NISVISIBLECALLBACK"
></A
>xmlC14NIsVisibleCallback ()</H3
><TABLE
BORDER="0"
BGCOLOR="#D6E8FF"
WIDTH="100%"
CELLPADDING="6"
><TR
><TD
><PRE
CLASS="PROGRAMLISTING"
>int (*xmlC14NIsVisibleCallback) (void *user_data,
<A
HREF="libxml-tree.html#XMLNODEPTR"
>xmlNodePtr</A
> node,
<A
HREF="libxml-tree.html#XMLNODEPTR"
>xmlNodePtr</A
> parent);</PRE
></TD
></TR
></TABLE
><P
></P
><DIV
CLASS="INFORMALTABLE"
><A
NAME="AEN20907"><P
></P
><TABLE
BORDER="0"
WIDTH="100%"
BGCOLOR="#FFD0D0"
CELLSPACING="0"
CELLPADDING="4"
CLASS="CALSTABLE"
><TBODY
><TR
><TD
WIDTH="20%"
ALIGN="RIGHT"
VALIGN="TOP"
><TT
CLASS="PARAMETER"
><I
>user_data</I
></TT
>&nbsp;:</TD
><TD
WIDTH="80%"
ALIGN="LEFT"
VALIGN="TOP"
>&nbsp;</TD
></TR
><TR
><TD
WIDTH="20%"
ALIGN="RIGHT"
VALIGN="TOP"
><TT
CLASS="PARAMETER"
><I
>node</I
></TT
>&nbsp;:</TD
><TD
WIDTH="80%"
ALIGN="LEFT"
VALIGN="TOP"
>&nbsp;</TD
></TR
><TR
><TD
WIDTH="20%"
ALIGN="RIGHT"
VALIGN="TOP"
><TT
CLASS="PARAMETER"
><I
>parent</I
></TT
>&nbsp;:</TD
><TD
WIDTH="80%"
ALIGN="LEFT"
VALIGN="TOP"
>&nbsp;</TD
></TR
><TR
><TD
WIDTH="20%"
ALIGN="RIGHT"
VALIGN="TOP"
><SPAN
CLASS="emphasis"
><I
CLASS="EMPHASIS"
>Returns</I
></SPAN
> :</TD
><TD
WIDTH="80%"
ALIGN="LEFT"
VALIGN="TOP"
>&nbsp;</TD
></TR
></TBODY
></TABLE
><P
></P
></DIV
></DIV
><HR><DIV
CLASS="REFSECT2"
><A
NAME="AEN20928"
></A
><H3
><A
NAME="XMLC14NEXECUTE"
></A
>xmlC14NExecute ()</H3
><TABLE
BORDER="0"
BGCOLOR="#D6E8FF"
WIDTH="100%"
CELLPADDING="6"
><TR
><TD
><PRE
CLASS="PROGRAMLISTING"
>int xmlC14NExecute (<A
HREF="libxml-tree.html#XMLDOCPTR"
>xmlDocPtr</A
> doc,
<A
HREF="libxml-c14n.html#XMLC14NISVISIBLECALLBACK"
>xmlC14NIsVisibleCallback</A
> is_visible_callback,
void *user_data,
int exclusive,
<A
HREF="libxml-tree.html#XMLCHAR"
>xmlChar</A
> **inclusive_ns_prefixes,
int with_comments,
<A
HREF="libxml-tree.html#XMLOUTPUTBUFFERPTR"
>xmlOutputBufferPtr</A
> buf);</PRE
></TD
></TR
></TABLE
><P
>Dumps the canonized image of given XML document into the provided buffer.
For details see "Canonical XML" (http://www.w3.org/TR/xml-c14n) or
"Exclusive XML Canonicalization" (http://www.w3.org/TR/xml-exc-c14n)</P
><P
></P
><DIV
CLASS="INFORMALTABLE"
><A
NAME="AEN20938"><P
></P
><TABLE
BORDER="0"
WIDTH="100%"
BGCOLOR="#FFD0D0"
CELLSPACING="0"
CELLPADDING="4"
CLASS="CALSTABLE"
><TBODY
><TR
><TD
WIDTH="20%"
ALIGN="RIGHT"
VALIGN="TOP"
><TT
CLASS="PARAMETER"
><I
>doc</I
></TT
>&nbsp;:</TD
><TD
WIDTH="80%"
ALIGN="LEFT"
VALIGN="TOP"
> the XML document for canonization</TD
></TR
><TR
><TD
WIDTH="20%"
ALIGN="RIGHT"
VALIGN="TOP"
><TT
CLASS="PARAMETER"
><I
>is_visible_callback</I
></TT
>&nbsp;:</TD
><TD
WIDTH="80%"
ALIGN="LEFT"
VALIGN="TOP"
>the function to use to determine is node visible
or not</TD
></TR
><TR
><TD
WIDTH="20%"
ALIGN="RIGHT"
VALIGN="TOP"
><TT
CLASS="PARAMETER"
><I
>user_data</I
></TT
>&nbsp;:</TD
><TD
WIDTH="80%"
ALIGN="LEFT"
VALIGN="TOP"
> the first parameter for <TT
CLASS="PARAMETER"
><I
>is_visible_callback</I
></TT
> function
(in most cases, it is nodes set)</TD
></TR
><TR
><TD
WIDTH="20%"
ALIGN="RIGHT"
VALIGN="TOP"
><TT
CLASS="PARAMETER"
><I
>exclusive</I
></TT
>&nbsp;:</TD
><TD
WIDTH="80%"
ALIGN="LEFT"
VALIGN="TOP"
> the exclusive flag (0 - non-exclusive canonicalization;
otherwise - exclusive canonicalization)</TD
></TR
><TR
><TD
WIDTH="20%"
ALIGN="RIGHT"
VALIGN="TOP"
><TT
CLASS="PARAMETER"
><I
>inclusive_ns_prefixes</I
></TT
>&nbsp;:</TD
><TD
WIDTH="80%"
ALIGN="LEFT"
VALIGN="TOP"
> the list of inclusive namespace prefixes
ended with a NULL or NULL if there is no
inclusive namespaces (only for exclusive
canonicalization, ignored otherwise)</TD
></TR
><TR
><TD
WIDTH="20%"
ALIGN="RIGHT"
VALIGN="TOP"
><TT
CLASS="PARAMETER"
><I
>with_comments</I
></TT
>&nbsp;:</TD
><TD
WIDTH="80%"
ALIGN="LEFT"
VALIGN="TOP"
> include comments in the result (!=0) or not (==0)</TD
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>&nbsp;:</TD
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