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Dasic is a complete standalone interpreter for a dialect of the original BASIC language.

Dasic - Dart BASIC interpreter #

Dasic is a complete standalone interpreter for a dialect of the original BASIC language. It handles tokenizing, parsing, interpreting, output, variables, expressions, and flow control, like a full-scale compiler or interpreter, just in miniature. I tried to keep the code simple and readable while still being short and readable.

If you've ever wanted a gentle introduction to how a programming languages work under the hood, Dasic is a good place to start.

Sample #

Result of dasic packages/dasic/scripts/mandel.das

                                                ----------
                                          ---------++*+++-------
                                      -------------+++*=*=++-------
                                  ---------------++*==@@@=+++---------
                               -------------++++++=*@@@@@@@+++---------
                            ------------+++++++++===@@@@@@==++++++++++---
                         ------------+++**@@@=*@@@@@@@@@@@@@@@@===*====---
                     -------------++++++==*@@@@@@@@@@@@@@@@@@@@@@@@@*+++---
               -----++++++++++++++++++=@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@+++----
        -----------++=====+=*=+++++++*@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@*+----
    --------------+++++=@@@@@@@@*@===@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@=++-----
  -------------++++++=@@@@@@@@@@@@@@*@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@*+------
 ------++++++++++=*@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@+++------
 --++++=+++=+++@=*@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@=++++------
 ---------+++++++=====@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@=++------
   --------------++++===@@@@@@@@@@@==@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@++-----
     -------------++++==@*==*@=@==+==@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@*=++----
           --------+++=+++++=++++++++=@*@@@@@@@@@@@@@@@@@@@@@@@@@@@@@==*+----
                  --------------++++++=@=@@@@@@@@@@@@@@@@@@@@@@@@@@*=+++----
                       ------------++++++=@@@@@@@@@@@@@@@@@@@@@@*@@@@=+----
                           -----------++=@*==+=@@@**@@@@@@*=*=@=++++==+---
                              ------------++++++++=@@@@@@@@++++++-------
                                 --------------+++*@*@@@*=@++----------
                                    --------------++++=@=+++---------
                                        -----------++==++++-------
                                             -------=+--------

Install #

If you don't have Dart on your machine - Download and install it from here

Install Dasic

    pub global activate dasic

Update Dasic

    # activate dasic again
    pub global activate dasic

Uninstall Dasic

    pub global deactivate dasic   

Usage #

Try


    dasic packages/dasic/scripts/hello.das
    dasic packages/dasic/scripts/hellos.das
    dasic packages/dasic/scripts/mandel.das

More Info #

The real information about Dasic, including the language syntax and how the interpreter works is all in with the code, so go ahead and read through Dasi.

If you have any questions, feel free to get in touch. Cheers!

Features and bugs

Please file feature requests and bugs at the issue tracker.

Thanks

I want to thank "Bob Nystrom" for his base-work "JASIC"! You can read more from Bob and about "A Complete Interpreter in One Java File" here on his Blog.
Java-Version of Dasic is Jasic

License

Copyright 2015 Michael Mitterer (office@mikemitterer.at),
IT-Consulting and Development Limited, Austrian Branch

Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at

   http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing,
software distributed under the License is distributed on an
"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND,
either express or implied. See the License for the specific language
governing permissions and limitations under the License.
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Dasic is a complete standalone interpreter for a dialect of the original BASIC language.

Repository (GitHub)
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License

unknown (LICENSE)

Dependencies

args, console_log_handler, logging, validate, yaml

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