From 375d87a9b0ec1cf2fffd705adb870c86144d2400 Mon Sep 17 00:00:00 2001 From: Johannes Hofmann Date: Mon, 26 Oct 2026 20:05:20 +0100 Subject: Replace the C++ implementation with the Rust port The Rust port (formerly gipfel-rs) is now the official successor to the FLTK/GSL C++ code base. This squashes the port into a single commit and removes the C++ sources (they remain in the git history below). Layout: crates/gipfel-core headless core: hills, panorama geometry, projections (maxima-generated derivatives), pure-Rust LM fit, gipfel: JPEG comment + EXIF I/O, profiles, stitching crates/gipfel-cli command-line tools (export, info, stitch, profiles) crates/gipfel-app Cosmic DE (libcosmic) GUI, binary name `gipfel` codegen/ maxima scripts + regen.sh for the projection code tests/ golden files + C++ reference harnesses (historical) The original README is kept for now; it will be updated to describe the Rust build. gipfel.dat, AUTHORS, ChangeLog and NEWS are unchanged. --- codegen/expr2rust.mac | 31 +++++++++++++++++++++++++++++++ 1 file changed, 31 insertions(+) create mode 100644 codegen/expr2rust.mac (limited to 'codegen/expr2rust.mac') diff --git a/codegen/expr2rust.mac b/codegen/expr2rust.mac new file mode 100644 index 0000000..e4e6be8 --- /dev/null +++ b/codegen/expr2rust.mac @@ -0,0 +1,31 @@ +/* + * Rust code generation for gipfel-rs. + * + * Port of gipfel's expr2c.mac (Copyright 2006-2009 Johannes Hofmann). + * Emits one Rust function per line (grep "^pub fn"); integer literals are + * converted to float literals by fixup.py afterwards. + */ + +load("stringproc")$ + +varsubst(v) := ssubst("_", "%", string(v))$ + +printdecl(vars) := ( + sprint("let mut", varsubst(first(vars)), ": f64 = 0.0;"), + for v in rest(vars) do sprint("let mut", varsubst(v), ": f64 = 0.0;"))$ + +printdef(expr) := sprint(varsubst(first(expr)), "=", varsubst(second(expr)), ";")$ + +block2rust(expr) := + if ?equal(op(expr), block) then ( + printdecl(first(expr)), + for d in reverse(rest(reverse(rest(expr)))) do printdef(d), + sprint("return", varsubst(last(expr)), ";")) + else + sprint("return", varsubst(expr), ";")$ + +expr2rust(funcname, argstr, expr) := ( + sprint("pub fn", funcname, "(", argstr, ") -> f64 {"), + block2rust(subst(pow, "^", optimize(expr))), + sprint("}", " +"))$ -- cgit v1.2.3