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..., I am getting an error message from the try function that I don't understand so I am hoping that someone can help. I am scraping from web pages, but sometimes they disappear. When that happens I need to control for it with some sort of function. This web page is parsed without a problem. exh<-"NASDAQ" tic<-"EGHT" URL<-paste("http://www.advfn.com/p.php?pid=financials&btn=istart_date&mode=quarterly_reports&symbol=", exh,"%3A",tic,"&istart_date=0", sep = "") doc <- htmlParse(URL) However, when I chang...

Hi Trevor, DWARF exception handling is an amalgam of several different documents and code tables, which all conspire to give us exception handling. :-) The documents you should read are: * Exception Handling Tables (http://www.codesourcery.com/public/cxx-abi/exceptions.pdf) This explains in detail what the table in the "__TEXT,__gcc_except_tab" section is all about. * DWARF

Hi, I'm trying to learn all that I can about exception handling from the compiler's point of view. Although much has been written about compiler theory in general -- parsing, code generation, you name it -- I can find almost nothing on the specific problem of exception handling support. In fact, the most informative document I've been able to find so far is "Bill's