Subject: Mes 0.7 released I am pleased to announce the release of Mes 0.7, representing 32 commits over 4 weeks. Mescc now behaves more like a regular C compiler: supporting -E, -c, -o options and with a more complete set of header files [stubs]; enough to work on compiling tinycc's tcc.c albeit a somewhat modified version[8]. * About Mes aims to create full source bootstrapping for GuixSD: an entirely source-based bootstrap path. The target is to [have GuixSD] boostrap from a minimal, easily inspectable binary --that should be readable as source-- into something close to R6RS Scheme. It currently consists of a mutual self-hosting [close to Guile-] Scheme interpreter prototype in C and a Nyacc-based C compiler in [Guile] Scheme. The Scheme interpreter prototype (mes.c) has a Garbage Collector, a library of loadable Scheme modules-- notably Dominique Boucher's LALR[1], Pre-R6RS portable syntax-case[2] with R7RS ellipsis, Matt Wette's Nyacc[3] Guile's PEG[4] --and test suite just barely enough to support a simple REPL (repl.mes) and simple C-compiler (mescc.mes) that can produce the second initial ELF binary from binary from mes.c, in only about 2h30'. Mes was inspired by The Maxwell Equations of Software: LISP-1.5[5] -- John McCarthy page 13, GNU Guix's[6] source/binary packaging transparency and Jeremiah Orians's stage0[7] bootstrap project. * Download git clone https://gitlab.com/janneke/mes wget https://gitlab.com/janneke/mes/repository/archive.tar.gz?ref=v0.7 -O mes-0.7.tar.gz Mes runs from the source tree and can also be built, packaged and installed in Guix[SD] by the usual guix package -f guix.scm * Changes in 0.7 since 0.6 ** Core *** The minimal C reader is now always included; dependencies on i686-unknown-linux-gnu-gcc and binary read-0-32.mo have been dropped, these are now optional. ** Language *** Mes reader now supports octal numbers #oXXX. *** 10 new functions current-output-port, getopt-long, negate, open-output-file, option-ref, set-current-output-port, string-rindex, string-suffix?, with-ouwith-output-to-file, with-output-to-port. ** Mescc *** Mescc can now be installed and used alongside a gcc installation. *** Mescc can now handle const anywhere. *** Mescc now supports array fields in structs. *** Mescc now supports forward declarations and typedef. *** Mescc can now handle comments anywhere. *** Mescc now supports addition and substraction for enum field values. *** Mescc now supports anonymous enums. *** Mescc now supports all C99 header files needed to compile tcc.c. *** build: C sources are now preprocessed separately, then compiled and linked. *** build: mlibc and C sources are now compiled separately and then linked. *** mlibc has been moved from Scheme snippets into C. *** Mescc now supports -c, -D, -E, -I and -o options. **** open now supports optional third mode parameter. ** Noteworthy bug fixes *** string-index now supports function predicate. *** number->string for radix > 10 now produces `a' instead of `:'. Greetings, janneke [1] https://github.com/schemeway/lalr-scm [2] https://www.cs.indiana.edu/chezscheme/syntax-case/old-psyntax.html [3] https://www.nongnu.org/nyacc/ [4] https://www.gnu.org/software/guile/docs/master/guile.html/PEG-Parsing.html [5] http://www.softwarepreservation.org/projects/LISP/book/LISP%25201.5%2520Programmers%2520Manual.pdf [6] https://www.gnu.org/software/guix/ [7] https://github.com/oriansj/stage0 [8] https://gitlab.com/janneke/tinycc