void HtmlParser::parseExtraAttributes(const char* szAttributesText, HtmlNode* pTargetNode, const char* szNamePrefix)
{
assert(pTargetNode);
const char* p = szAttributesText;
const char* ps = NULL;
MemBuffer mem;
bool inQuote1 = false, inQuote2 = false;
unsigned char c;
while(c = *p)
{
if(c == '\'')
inQuote1 = !inQuote1;
else if(c == '\"')
inQuote2 = !inQuote2;
bool notInQuote = (!inQuote1 && !inQuote2);
if(notInQuote && (c == '\"' || c == '\'') && !isspace(p[1]))
{
//处理属性值引号后面没有空白分隔符的情况：a="v1"b=v2 （这种错误写法不少见，应兼容之）
if(ps)
{
mem.appendPointer(duplicateStrAndUnquote(ps, p - ps + 1));
ps = NULL;
}
p++;
continue;
}
if(notInQuote && (c == '=' || isspace(c)))
{
if(ps)
{
mem.appendPointer(duplicateStrAndUnquote(ps, p - ps));
ps = NULL;
}
if(c == '=')
mem.appendPointer(NULL);
}
else
{
if(ps == NULL)
ps = p;
}
p++;
}
if(ps)
mem.appendPointer(duplicateStrAndUnquote(ps, p - ps));
mem.appendPointer(NULL);
mem.appendPointer(NULL);
char** pp = (char**) mem.getData();
//下面把解析出来的属性值存入pTargetNode->attributes
MemBuffer* attributes = pTargetNode->attributes;
if(attributes == NULL)
{
attributes = new MemBuffer();
pTargetNode->attributes = attributes;
}
for(int i = 0, n = mem.getDataSize() / sizeof(char*) - 2; i < n; i++)
{
if(!szNamePrefix)
{
attributes->appendPointer(pp[i]); //attribute name
} else {
char* newAttributeName = duplicateStr(pp[i], -1, szNamePrefix);
attributes->appendPointer(newAttributeName); //attribute name
freeDuplicatedStr(pp[i]);
}
if(pp[i+1] == NULL)
{
attributes->appendPointer(pp[i+2]); //attribute value
i += 2;
}
else
attributes->appendPointer(NULL); //attribute vlalue
//标记需free属性名称和属性值文本
//TODO: 将来优化到尽量少复制文本
attributes->appendInt(FLAG_NEED_FREE_NAME | FLAG_NEED_FREE_VALUE); //attribute flags
}
attributes->shrink();
pTargetNode->attributeCount = attributes->getDataSize() / sizeof(HtmlAttribute);
}
static int test_MemBuffer (){
cout << "Go Testing" << __FILE__ << endl;
MemBuffer mem;
cout << "default capacity:" << mem.capacity () << endl;
mem.require (512);
cout << "now capacity:" << mem.capacity () << endl;
mem.require (513);
cout << "now capacity:" << mem.capacity () << endl;
cout << "not use=>" << mem.data () << endl;
mem.appendData ("hello", 5);
cout << "=>" << ( mem.data ()!=NULL?(char*) mem.data (): NULL) << endl;
mem.appendData (" world", 6);
cout << "=>" << ( mem.data ()!=NULL?(char*) mem.data (): NULL) << endl;
cout << "now size:" << mem.size () << " capacity:" << mem.capacity () << endl;
mem.shrink ();
cout << "now size:" << mem.size () << " capacity:" << mem.capacity () << endl;
mem.insertData (6, "code ", 5);
cout << "inserted size:" << mem.size () << " capacity:" << mem.capacity () << endl;
cout << "=>" << ( mem.data ()!=NULL?(char*) mem.data (): NULL) << endl;
mem.deleteData (6, 5);
cout << "deleted size:" << mem.size () << " capacity:" << mem.capacity () << endl;
cout << "=>" << ( mem.data ()!=NULL?(char*) mem.data (): NULL) << endl;
MemBuffer other;
other = mem;
cout << "other size:" << other.size () << " capacity:" << other.capacity () << endl;
cout << "other=>" << ( other.data ()!=NULL?(char*) other.data (): NULL) << endl;
size_t rs = other.saveToFile ("/tmp/temp_test");
cout << "write :" << rs << endl;
mem.empty ();
rs = mem.loadFromFile ("/tmp/temp_test");
cout << "read :" << rs << endl;
cout << "read size:" << mem.size () << " capacity:" << mem.capacity () << endl;
cout << "=>" << ( mem.data ()!=NULL?(char*) mem.data (): NULL) << endl;
unlink ("/tmp/temp_test");
cout << "=============================\n\n" << endl;
int i = 1;
long l = 1000;
char string[] = "hello world";
bool b = true;
float f = 2.0f;
double d = 100.1;
mem.empty ();
mem.pushInt ( &i );
mem.pushLong ( &l );
mem.pushString ( string, strlen(string) );
mem.pushBool ( &b );
mem.pushFloat ( &f );
mem.pushDouble ( &d );
cout << "push size:" << mem.size () << " capacity:" << mem.capacity () << endl;
other.empty ();
other = mem;
cout << "double:" << other.popDouble () << endl;
cout << "float:" << other.popFloat () << endl;
cout << "bool:" << other.popBool () << endl;
cout << "stirng:" << other.popString () << endl;
cout << "loing:" << other.popLong () << endl;
cout << "int:" << other.popInt () << endl;
return 0;
}
