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Solve the problem that libxml2 does not support Chinese Characters

Source: Internet
Author: User
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When libxml2 is used to process XML files, UTF-8 encoding is used by default. Therefore, when you modify and save the XML file as gb2312 encoding, you must convert the data to UTF-8 encoding before modifying and saving it!

Iconv is used for conversion. The following is the conversion code.

Char * convertenc (char * encfrom, char * encto, const char * in)
{
 
Static char bufin [1024], bufout [1024], * sin, * sout;
Int mode, Lenin, lenout, RET, nline;
Iconv_t c_pt;
 
If (c_pt = iconv_open (encto, encfrom) = (iconv_t)-1)
{
Printf ("iconv_open false: % s ==> % s/n", encfrom, encto );
Return NULL;
}
Iconv (c_pt, null );
 
Lenin = strlen (in) + 1;
Lenout = 1024;
Sin = (char *) in;
Sout = bufout;
Ret = iconv (c_pt, & sin, (size_t *) & Lenin, & sout, (size_t *) & lenout );

If (ret =-1)
{
Return NULL;

}

Iconv_close (c_pt );
 
Return bufout;
}

The following are examples

Test. xml

<? XML version = "1.0" encoding = "gb2312"?>
<Parent> test </parent>

Read code

Int main (void)
{
Xmldocptr Doc = NULL;
Xmlnodeptr cur = NULL;

Doc = xmlparsefile ("test. xml ");
Cur = xmldocgetrootelement (DOC );
Printf ("% s/n", convert ("UTF-8", "gb2312", (char *) xmlnodegetcontent (cur )));
}
Modify and save code

Test2.xml

<? XML version = "1.0" encoding = "gb2312"?>
<Story>
<Storyinfo>
<Author> JOHN fleck </author>
<Datewritten> June 2, 2002 </datewritten>
<Keyword> example keyword </keyword>
<Bibliography> C ++ </bibliography>
<Test> test </test>
</Storyinfo>
<Body>
<Headline> This is the headline <Para> This is the body text. </para>
</Body>
</Story>

Xmldocptr
Parsedoc (char * docname, char * URI ){

Xmldocptr Doc;
Xmlnodeptr cur;
Xmlnodeptr newnode;
Xmlattrptr newattr;

Doc = xmlparsefile (docname );
 
If (Doc = NULL ){
Fprintf (stderr, "document not parsed successfully./N ");
Return (null );
}
 
Cur = xmldocgetrootelement (DOC );
 
If (cur = NULL ){
Fprintf (stderr, "empty document/N ");
Xmlfreedoc (DOC );
Return (null );
}
 
If (xmlstrcmp (cur-> name, (const xmlchar *) "story ")){
Fprintf (stderr, "Document of the wrong type, root node! = Story ");
Xmlfreedoc (DOC );
Return (null );
}
 
Newnode = xmlnewtextchild (cur, null, (xmlchar *) "Reference", null );
Newattr = xmlnewprop (newnode, (xmlchar *) "Uri", (xmlchar *) URI );
Return (DOC );
}

Int main (INT argc, char ** argv)
{
Int Options = 0;
Xmldocptr Doc = NULL;
Char * output = NULL;
Char * sznode = NULL;
Int ret = 0;

Xmladdencodingalias ("UTF-8", "dvenc ");
Xmlkeepblanksdefault (0 );
Defaultentityloader = xmlgetexternalentityloader ();
Xmlsetexternalentityloader (xmllintexternalentityloader );
Xmllinenumbersdefault (1 );
 
Sznode = convert ("gb2312", "UTF-8", "test ");
Doc = parsedoc (argv [2], sznode );

Ret = xmlsaveformatfileenc (output? Output: "-", Doc, argv [1], 1 );
If (Ret <0)
{
Fprintf (stderr, "failed save to % s/n ",
Output? Output :"-");
}
Return 0;
}

Run

Xmlout gb2312 test2.xml

Result

<? XML version = "1.0" encoding = "gb2312"?>
<Story>
<Storyinfo>
<Author> JOHN fleck </author>
<Datewritten> June 2, 2002 </datewritten>
<Keyword> example keyword </keyword>
<Bibliography> C ++ </bibliography>
<Test> test </test>
</Storyinfo>
<Body>
<Headline> This is the headline <Para> This is the body text. </para>
</Body>
<Reference uri = "test"/>
</Story>

This article is an English version of an article which is originally in the Chinese language on aliyun.com and is provided for information purposes only. This website makes no representation or warranty of any kind, either expressed or implied, as to the accuracy, completeness ownership or reliability of the article or any translations thereof. If you have any concerns or complaints relating to the article, please send an email, providing a detailed description of the concern or complaint, to info-contact@alibabacloud.com. A staff member will contact you within 5 working days. Once verified, infringing content will be removed immediately.

Related Keywords:
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