html tidy 编译,html解析利器Html Tidy-附示例与交叉编译方式

最近用curl模拟一些网站的登录要对html进行解析，而libxml2要求比较严格，很多html页面无法正确解析，为此才接触到一个c库Html Tidy,故引出本文。

此库官方：http://tidy.sourceforge.net/libintro.html

最新代码可通过cvs下载

cvs -d:pserver:[e-mail]:/cvsroot/tidy login

cvs -z3 -d:pserver:[e-mail]:/cvsroot/tidy co -P tidy

交叉编译

cd tidy

./build/gnuauto/setup.sh

mkdir ../build-tidy

cd ../build-tidy

../tidy/configure --host=arm-linux CC=arm-linux-gcc --prefix=`pwd`/out

mkdir ./out/include/tidy

mv ./out/include/*.h ./out/include/tidy/

make

make install

cd ../

cvs上下来的源码编译安装后include目录下少了tidy目录，而其示例程序用的是#include ，不手动添加就无法编译通过

作者：帅得不敢出门 C++哈哈堂<31843264>

废话不说，上示例：

#include

#include

#include

#include

/* curl write callback, to fill tidy's input buffer... */

uint write_cb(char *in, uint size, uint nmemb, TidyBuffer *out) {

uint r;

r = size * nmemb;

tidyBufAppend( out, in, r );

return(r);

}

/* Traverse the document tree */

void dumpNode(TidyDoc doc, TidyNode tnod, int indent ) {

TidyNode child;

for ( child = tidyGetChild(tnod); child; child = tidyGetNext(child) )

{

ctmbstr name = tidyNodeGetName( child );

if ( name )

{

/* if it has a name, then it's an HTML tag ... */

TidyAttr attr;

printf( "%*.*s%s ", indent, indent, "

/* walk the attribute list */

for ( attr=tidyAttrFirst(child); attr; attr=tidyAttrNext(attr) ) {

printf(tidyAttrName(attr));

tidyAttrValue(attr)?printf("=\"%s\" ", tidyAttrValue(attr)):printf(" ");

}

printf( ">\n");

} else {

/* if it doesn't have a name, then it's probably text, cdata, etc... */

TidyBuffer buf;

tidyBufInit(&buf);

tidyNodeGetText(doc, child, &buf);

printf("%*.*s\n", indent, indent, buf.bp?(char *)buf.bp:"");

tidyBufFree(&buf);

}

dumpNode( doc, child, indent + 4 ); /* recursive */

}

}

int main(int argc, char **argv ) {

CURL *curl;

char curl_errbuf[CURL_ERROR_SIZE];

TidyDoc tdoc;

TidyBuffer docbuf = {0};

TidyBuffer tidy_errbuf = {0};

int err;

if ( argc == 2) {

curl = curl_easy_init();

curl_easy_setopt(curl, CURLOPT_URL, argv[1]);

curl_easy_setopt(curl, CURLOPT_ERRORBUFFER, curl_errbuf);

curl_easy_setopt(curl, CURLOPT_NOPROGRESS, no);

curl_easy_setopt(curl, CURLOPT_VERBOSE, yes);

curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, write_cb);

tdoc = tidyCreate();

tidyOptSetBool(tdoc, TidyForceOutput, yes); /* try harder */

tidyOptSetInt(tdoc, TidyWrapLen, 4096);

tidySetErrorBuffer( tdoc, &tidy_errbuf );

tidyBufInit(&docbuf);

curl_easy_setopt(curl, CURLOPT_WRITEDATA, &docbuf);

err=curl_easy_perform(curl);

if ( !err ) {

err = tidyParseBuffer(tdoc, &docbuf); /* parse the input */

if ( err >= 0 ) {

err = tidyCleanAndRepair(tdoc); /* fix any problems */

if ( err >= 0 ) {

err = tidyRunDiagnostics(tdoc); /* load tidy error buffer */

if ( err >= 0 ) {

dumpNode( tdoc, tidyGetRoot(tdoc), 0 ); /* walk the tree */

fprintf(stderr, "%s\n", tidy_errbuf.bp); /* show errors */

}

}

}

} else fprintf(stderr, "%s\n", curl_errbuf);

/* clean-up */

curl_easy_cleanup(curl);

tidyBufFree(&docbuf);

tidyBufFree(&tidy_errbuf);

tidyRelease(tdoc);

return(err);

} else printf( "usage: %s \n", argv[0] );

return(0);

}