On Wed, Jun 12, 2019 at 5:26 PM Yanghao Hua <yanghao...@gmail.com> wrote: > > On Tue, Jun 11, 2019 at 11:35 PM Barry Scott <ba...@barrys-emacs.org> wrote: > > Some times a DSL is usable within the python syntax and that is great. > > I have use python for a number of DSL's. > > > > But when the DSL is beyond what python can help with directly I'm wondering > > why you do not parse the DSL with python and execute the results. > > > > In that way you can have any semantics that you want from any syntax that > > you > > wish to have. However you do not need the python language to be changed at > > all. > > > > And it must be clear that you are making little to no progress on > > convincing people > > that changing python is a good idea. > > > > Barry > > Hi Barry, realized that. Please do allow me sometime for formalize > everything. You are absolutely right in that writing a new parser > might not be a bad idea, but it is just soooo close for enabling > Python to be used as the DSL language. We do not even need a DSL for > HDL in this case, as Python can co-simulate with any HDL simulator > that supports VPI/DPI/etc., but writing a full featured HDL is really > just a few hundred of lines of code which enables you to throw away > the entire HDL simulator (hundreds of thousands of lines, plus another > hundreds of lines of glue code in between python and HDL simulator.
If Python is really THAT close, then devise two syntaxes: an abstract syntax for your actual source code, and then a concrete syntax that can be executed. It's okay for things to be a little bit ugly (like "signal[:] = 42") in the concrete form, because you won't actually be editing that. Then your program just has to transform one into the other, and then run the program. ChrisA _______________________________________________ Python-ideas mailing list -- python-ideas@python.org To unsubscribe send an email to python-ideas-le...@python.org https://mail.python.org/mailman3/lists/python-ideas.python.org/ Message archived at https://mail.python.org/archives/list/python-ideas@python.org/message/FZF7UJLKUOLRVUH6EBHATFQAGKH4V7SS/ Code of Conduct: http://python.org/psf/codeofconduct/
