What I want is PureData syntax minus the current behaviour of backslash plus those constructs from Tcl: doublequotes, braces, backslash. There will still be some major differences between Tcl and the new Pd format, the biggest being that Pd distinguishes between float and symbol at the lexical analysis level (and in the spirit of that, the new syntax will also make string and nested-list distinct atom types at the lexical analysis level too).
well, i'm not a big fan of extending the pd syntax!
this would result an incompatibility from one pd interpreter to another one... although i like the idea of having an extended dataflow syntax (nested lists, exact numeric data types) compatibility should be a major concern.
this would be another project and it would be much cleaner to reimplement a whole dataflow language from scratch, rather than using the pd codebase for that... it's just not suited for that ... ... maybe a topic for my bachelor thesis, once i started to study again ...
cheers ... tim