distinguishable from memoizing macros created on the scheme level
or from user provided primitive memoizing macros. The reason is,
that the internal memoizers are the only ones that are allowed to
transform their scheme input into memoizer byte code, while all
other memoizing macros may only transform scheme code into new
scheme code.
To achieve this, a new macro type 'builtin-macro!' is introduced.
Currently, 'builtin-macro!'s are handled as memoizing macros, but
this will change when the memoizer and executor are separated.
* macros.[ch] (scm_i_makbimacro): New.
* macros.h (SCM_BUILTIN_MACRO_P): New.
* macros.c (macro_print, scm_macro_type): Support builtin-macro!s.
* eval.c, goops.c: All of guile's primitive memoizing macros are
primitive builtin-macros now.
* eval.c (scm_macroexp, SCM_CEVAL): Make sure the primitive
builtin-macros are handled equally to memoizing macros.
scm_sym_macro, scm_macro_type), macros.h (scm_makmacro):
Deprecated the special kind of built-in dynamic syntax transformer
that was inaccurately named "macro". Note: The built-in syntax
transformers that are named "mmacro" or "memoizing-macro" still
exist, and it is these which come much closer to what one would
call a macro.
added append docs from R4RS.
* strings.c: Docstring typo fix, + eliminate unneeded IMP tests.
Thanks Dirk Hermann!
* chars.h: Provide SCM_CHARP, SCM_CHAR, SCM_MAKE_CHAR and
deprecate SCM_ICHRP, SCM_ICHR, SCM_MAKICHR. Thanks Dirk Hermann!
* *.h, *.c: Use SCM_CHARP, SCM_CHAR, SCM_MAKE_CHAR throughout.
Drop use of SCM_P for function prototypes... assume an ANSI C
compiler. Thanks Dirk Hermann!