in reply to Re^3: Writing a Programming Language in Perl
in thread Writing a Programming Language in Perl

I am extremely greatful of the info that has been givenfrom everyone, really I am. But how does Marpa help me create a language/compiler in Perl?
  • Comment on Re^4: Writing a Programming Language in Perl

Replies are listed 'Best First'.
Re^5: Writing a Programming Language in Perl
by ikegami (Patriarch) on Oct 25, 2011 at 22:32 UTC
    You need to be able to parse the code before you can compile or execute it. It helps you by creating the parser for you.
[reply]
      So the parsed code goes through a compiler? And then it is executed?
[reply]

        A compiler (or interpreter) has a few parts.

        A parser converts a file full of source code into a data structure.

        An interpreter traverses that data structure and executes the appropriate commands for each significant node in the structure.

        A compiler transforms that data structure and emits something else. Perhaps this other is object code for a specific processor or perhaps it's binary code for a virtual machine or perhaps it's source code for another language entirely.

        If you look at compiling and implementing languages this way, you already know the general technique. (everything is a compiler).

        Improve your skills with Modern Perl: the free book.

[reply]

In Section Seekers of Perl Wisdom