On 31 October 2014 18:46, Jason Merrill <jwmerr...@gmail.com> wrote: > On Thursday, October 30, 2014 11:42:38 PM UTC-7, Daniel Carrera wrote: > >> >> The point is that Julia will parse the entire line and form a parse tree >> before it begins to interpret the instruction. Therefore, the @run line has >> to parse correctly as valid Julia syntax. >> >> If you want to type fewer quotation marks, one could make a macro that >> takes everything as one string: >> >> @run "test.jl --fast a -r 3" >> >> The macro can split the string along the spaces. >> > > Note that macros that are meant to be called with a single string can be > non-standard string literals >
Yes, indeed. You could also shorten it to R"test.jl 1 2 3". But personally I don't think it makes sense for the @run macro to take in a single string. I think that would make it less useful. For example, suppose that you had a function that produced the parameters that go to the external script. I would rather write @run "script.jl" params() than R"script.jl $( params() )" Then again, this is just a personal preference. Personally I think that include() already does the job I want. Cheers, Daniel. -- When an engineer says that something can't be done, it's a code phrase that means it's not fun to do.
