Add Chapter 29 for tech debt cleanup with the parser splitmain

Keep Chapter 28b intact and carry the grammar-oriented parser package, Var move, IterPeeps move, and parser regression tests into Chapter 29. Defer privacy and exclude its experimental tests and fixture changes.

Register the chapter in the indexes, IntelliJ modules and run configurations, Maven reactor, roadmap, and linear-history publisher. Windows and Linux each pass 573 tests, release builds, 199 allocation replays, and 29 native checks.

1 files changed, 44 insertions, 0 deletions

diff --git a/chapter29/src/main/smp/sys/libc.smp b/chapter29/src/main/smp/sys/libc.smp
new file mode 100644
index 00000000..17ee65cb
--- /dev/null
+++ b/chapter29/src/main/smp/sys/libc.smp
@@ -0,0 +1,44 @@
+
+// libc bindings:
+//   https://www.man7.org/linux/man-pages/man2/<libc call>.2.html
+
+// The buffers are int-versions of zero-terminated strings.
+//     int buf = aryu8.str0("some_file");
+// buf mode perm-> fd
+{  i64 i32  i32 -> i32 } open = "C";
+// buf perm -> fd
+{  i64 i32 -> i32 } creat = "C";
+
+// fd  buf len -> len
+{  i32 i64 u32 -> i32 } write = "C";
+// fd  buf len -> len
+{  i32 i64 u32 -> i32 } read = "C";
+// fd  -> err
+{  i32 -> i32 } close = "C";
+// path -> err
+{  i64 -> i32 } unlink = "C";
+
+i32 O_RDONLY = 0;
+i32 O_WRONLY = 1;
+i32 O_RDWR   = 2;
+i32 O_CREAT = 512; // 02000 on x86_64-pc-cygwin
+i32 O_TRUNC = 1024; // 04000 on x86_64-pc-cygwin
+
+i32 STDIN  = 0;
+i32 STDOUT = 1;
+i32 STDERR = 2;
+
+// status
+{  i32 -> i32 } _exit = "C";
+// errno is not an ordinary C data symbol; read it through the native runtime.
+{ i32 } simple_errno = "C";
+val errno = { -> simple_errno(); };
+// addr len prot flags fd  off -> void*
+{  i64  i64 i32  i32   i32 i32 -> i64 } mmap = "C";
+// mmap flags
+i32 PROT_EXEC = 4;
+i32 PROT_READ = 1;
+i32 PROT_WRITE= 2;
+i32 PROT_NONE = 0;
+i32 MAP_PRIVATE = 2;
+i32 MAP_ANON = 32;