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Classic Modula-2 Source to Source Translator

C 100.00%

modula-2 translator pim c cross-platform cross-platform-native

motto's Introduction

MOTTO — Classic Modula-2 Translator Tokyo

A replacement for the venerable Modula-2 Compiler Karlsruhe (MOCKA)

MOTTO is a source to source Modula-2 Translator for the classic Modula-2 dialects described in the 2nd, 3rd and 4th editions of Niklaus Wirth's book "Programming in Modula-2" (PIM) published by Springer Verlag and is intended as a replacement for the venerable MOCKA compiler. Due to a backend generated by an undocumented proprietary backend generator, MOCKA will forever be limited to the Intel x86 32-bit architecture; therefore, a replacement that is platform independent and 100% open source is desirable.

MOTTO will translate source files written in the classic dialects, including language extensions of the MOCKA compiler, to semantically equivalent source files in C99 and Modula-2 Revision 2010 (M2R10). ISO Modula-2 will not be supported.

As of April 2023, the project has been repurposed from its original objective and scope. Rework will take some time.

For more details please visit the project wiki at the URL: https://github.com/trijezdci/motto/wiki

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motto's Issues

new identifier conversion specification

The previous identifier conversion scheme was far too complex and caused the entire project to be put on indefinite hold.

A new much simpler identifier conversion scheme has now been defined and documented:

https://github.com/trijezdci/m2c/wiki/Identifier-Mapping

The new scheme still needs to be implemented and identconv.c needs a complete rewrite.

Syntax rule varSizeRecordType uses IN instead of +

The prefix to mark an indeterminate field in a record has long since changed from IN to +.

This needs to be updated in

the syntax diagrams
the grammar file m2c-grammar.gll
the parser implementation m2-parser.c

The parser function actually implements even older syntax.

missing file in repo?

Hello,
File "m2-stats.h" defined as a dependency in m2-parser.h appears to be missing in the repository. Can you please confirm?

in m2-parser.h
#include "m2-stats.h"

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