Transpiler from J to Fortran

· Fortran Lang Discourse · Aug. 15, 2026, 4:22 p.m.
Summary
The blog post discusses a transpiler created to convert the J programming language into modern Fortran. The author highlights the utility of J as a token-efficient language suitable for LLMs and details the functionality of the transpiler that includes a REPL for on-the-fly code translation. It can handle simple J programs, but struggles with more complex applications, and notes potential for further integration with Python/Numpy.
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