Determine if the supplied chain iterator, is at the start of a legal HTML tag or anti-tag

Declared in file: hzDocument.h
Defined in file : hzDocHtml.cpp

Function Logic:

Function body:

hzHtagform& TagLookup (hzChain::Iter& ci)
{
   //  Category: Internet
   //  
   //  Determine if the supplied chain iterator, is at the start of a legal HTML tag or anti-tag
   //  
   //  Arguments: 1) ci A chain iterator to be tested to see if it is at the begening of an allowed HTML5
   //  
   //  Returns: Reference to the tag form for the tag
   hzChain     W ;         //  Working chain
   chIter      xi ;        //  Internal chain iterator
   hzString    word ;      //  Individual word
   //  If tagmap not loaded, load it
   if (!s_htagNam.Count())
       InitHtml() ;
   xi = ci ;
   if (*xi != CHAR_LESS)
       return s_tagformDuff ;
   xi++ ;
   if (*xi == CHAR_FWSLASH)
       xi++ ;
   for (;;)
   {
       if (*xi == CHAR_SPACE)  break ;
       if (*xi == CHAR_MORE)   break ;
       W.AddByte(*xi) ;
       xi++ ;
   }
   word = W ;
   word.ToLower() ;
   return s_htagNam[word] ;
}