Hi, I'm very intrested in any sort of protocol of such conversion. Within the next week I'll start to develop a utility converting delphi programs, at least basic ones for the beginning, into freepascal, but without loosing the possibility to compile it under delphi. The second way would be possible too, to get freepascal/lazarus code compatible with delphi.
I've posted a message, something like a month ago, to ask for opinion if such a program would be useful, the thread was named "Code universalizator". I've got an answer from the university that I can release it under my name and under any license I'd like, so it's about time to start. Best regards, Matej On Tuesday 6 December 2005 05:19, Alexsander Rosa wrote: > Today I started the porting of a medium-sized application (~100 kloc) from > D7 with CLX to Lazarus (used the 2005-12-05 snapshot). I was wondering if a > diary of this could be useful - I do not want to forget what I'm doing. > Right now I'm porting the Object Persistence Framework (OPF), and managed > to get a working test program already (on Windows XP). The main changes > were: > > - DB Express has a TStringList named Params; all databases use it, so to > access PostgreSQL (the DB I use) there were a line DriverName := > 'PostgreSQL'. Using SqlDB, I used the TPQConnectin component; > > - My OPF has an option to trim the strings it gets from (or write to) the > DB. It used Trim(X) where X is a Variant. FPC did not like that, and I had > to change it to Trim(VarToStr(X)). There's hundreds of files that use that > construct in my project, but thanks God it's all code that is automagically > generated by a custom made tool. > > - Bug 4323: http://www.freepascal.org/bugs/showrec.php3?ID=4323 - the > workaround was use ShortDateFormat and others instead of the thread safe > TFormatSettings. > > - Instead of TTransactionDesc, there is TSQLTransaction. It led to a lot of > changes, including this one that I'm afraid is not a good one (the > condition seems to be different): > if Transaction.Active {FdscTrans.InTransaction} then ... > My OPF controls the transactions, throwing its own errors when you try to > start a transaction when there's one started, or try to commit when there's > no transaction. Is the TSQLTransaction is always active when the connection > is open? > > - A weird thing was an error using the LIMIT clause of some SQL queries. I > removed them by now, but these LIMIT clauses are needed for the correct > operation of the OPF. I will get back to this later. > > Thats it. Also, there was a lot of strange behaviours of the IDE (remember > I'm using Windows XP), but nothing that can be considered a showstopper. It > includes wrong syntax highlight, some weird things with Ctrl-Space and > ghost carets. Are these known bugs? > > -- > Atenciosamente, > > Alexsander da Rosa _________________________________________________________________ To unsubscribe: mail [EMAIL PROTECTED] with "unsubscribe" as the Subject archives at http://www.lazarus.freepascal.org/mailarchives
