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2010-04-09remove libguile/lang.h, deprecate %nil (in favor of #nil)Andy Wingo1-43/+0
* libguile/Makefile.am: * libguile/init.c: * libguile/lang.c: * libguile/lang.h: Remove lang.c and lang.h. * libguile/pairs.h (SCM_NIL_P, SCM_NULL_OR_NIL_P): Moved here. * module/ice-9/deprecated.scm (%nil): %nil definition moved here. * libguile/alist.c: * libguile/async.c: * libguile/backtrace.c: * libguile/boolean.c: * libguile/dynl.c: * libguile/eval.c: * libguile/filesys.c: * libguile/fluids.c: * libguile/list.c: * libguile/load.c: * libguile/options.c: * libguile/posix.c: * libguile/print.c: * libguile/promises.c: * libguile/sort.c: * libguile/throw.c: * libguile/trees.c: * libguile/vectors.c: * libguile/vm.c: * libguile/weaks.c: * srfi/srfi-1.c: <libguile/lang.h> references removed.
2010-04-09lisp nil always enabledAndy Wingo1-9/+2
* configure.ac: Remove --disable-elisp option. Lisp nil is always enabled. * libguile/boolean.h: * libguile/gen-scmconfig.c: * libguile/gen-scmconfig.h.in: * libguile/init.c: * libguile/lang.c: * libguile/lang.h: * libguile/pairs.h: * libguile/private-options.h: * libguile/read.c: Remove conditionals for disabling elisp.
2009-10-27the cube of lisp booleans (#f nil () #t)Mark H Weaver1-2/+2
* Renumbers the IFLAG constants. * Adds several macros related to boolean type tests, null tests, and boolean-truth testing (including lisp-style boolean-truth tests). * Adds compile-time checks to verify the necessary IFLAG numbering properties needed for the checks to work properly. * Changes some existing code to use the new optimized macros, without changing the semantics of the code at all (except that scm_is_bool is changed from a function to a macro). I added the following macros, whose names explicitly state how %nil should be handled. See the comments in the patch for more information about these. scm_is_false_assume_not_lisp_nil scm_is_true_assume_not_lisp_nil scm_is_false_and_not_lisp_nil scm_is_true_or_lisp_nil scm_is_false_or_lisp_nil scm_is_true_and_not_lisp_nil scm_is_lisp_false scm_is_lisp_true scm_is_null_assume_not_lisp_nil scm_is_null_and_not_lisp_nil scm_is_null_or_lisp_nil scm_is_bool_and_not_lisp_nil scm_is_bool_or_lisp_nil The following already-existing macros are defined as aliases, such that their semantics is unchanged (although scm_is_bool used to be a function and is now a macro). scm_is_null --> scm_is_null_and_not_lisp_nil scm_is_false --> scm_is_false_and_not_lisp_nil scm_is_true --> scm_is_true_or_lisp_nil scm_is_bool --> scm_is_bool_and_not_lisp_nil (I still believe that these should be changed to versions that handle %nil properly, but await approval on that point, so these patches do not make those changes) Also, if the preprocessor macro SCM_ENABLE_ELISP is not true (this macro already existed and was used in lang.h), all overheads associated with %nil handling are eliminated from the above macros. * libguile/tags.h (SCM_BOOL_F, SCM_BOOL_T, SCM_UNSPECIFIED) (SCM_UNDEFINED, SCM_UNBOUND, SCM_ELISP_NIL): Renumber, so that a number of important distinctions (false versus true, end-of-list, etc) can be made by masking a single bit. Also define a number of build-time tests to assert that this condition holds. * libguile/boolean.h (scm_is_false_and_not_nil, scm_is_true_or_nil) (scm_is_false_assume_not_nil, scm_is_true_assume_not_nil): (scm_is_false_or_nil, scm_is_true_and_not_nil) (scm_is_bool_or_nil, scm_is_bool_and_not_nil): New exciting macros to test certain boolean/end-of-list properties. (scm_is_false, scm_is_true): Use a restrictive definition, where only SCM_BOOL_F is false. Should probably change in the future. (scm_is_bool): Incompatible change: changed to be a macro. Was a function before. Probably should allow nil as a boolean, but that will be for a later patch. (scm_is_lisp_false, scm_is_lisp_true): New macros, implementing the standard Lisp boolean predicates, where '() is actually false. * libguile/eval.i.c (CEVAL): Fix a number of false-or-nil and similar tests to use the new macros. * libguile/lang.h (SCM_NULL_OR_NIL_P): Use scm_is_null_or_nil. * libguile/pairs.c: Add a compile-time check that null and nil differ by only one bit. * libguile/pairs.h (scm_is_null_and_not_nil, scm_is_null_assume_not_nil) (scm_is_null_or_nil): New exciting macros! (scm_is_null): Just be scm_is_null_and_not_nil, for now. * libguile/print.c: Adapt to the reordering, and print suitably nasty things for the not-to-be-used values.
2009-06-17Change Guile license to LGPLv3+Neil Jerram1-6/+7
(Not quite finished, the following will be done tomorrow. module/srfi/*.scm module/rnrs/*.scm module/scripts/*.scm testsuite/*.scm guile-readline/* )
2008-05-31Add `SCM_INTERNAL' macro, use it.Ludovic Courtès1-2/+2
2006-04-17merge from 1.8 branchKevin Ryde1-1/+1
2005-05-23The FSF has a new address.Marius Vollmer1-1/+1
2004-09-22*** empty log message ***Marius Vollmer1-2/+2
2004-07-27* tags.h, deprecated.h (SCM_EQ_P): Deprecated by moving it intoMarius Vollmer1-1/+1
deprecated.h. Replaced all uses with scm_is_eq.
2003-04-05Changed license terms to the plain LGPL thru-out.Marius Vollmer1-35/+11
2003-03-27* lang.h: fix various preprocessor usages of new publicRob Browning1-1/+1
symbols to expect 0 or 1 values rather than 1 or undefined. i.e. change #ifdef to #if, etc.
2002-12-29Remove commented-out declarations (related to Elisp).Neil Jerram1-19/+3
2002-01-22* First batch of libguile changes for Elisp support.Neil Jerram1-1/+11
* Fixed a few typos. * Minor rationalization of macros relating to source breakpoints.
2001-11-02Prefixed each each exported symbol with SCM_API.Marius Vollmer1-9/+9
2001-08-31* Renamed header macros to the SCM_<filename>_H format.Dirk Herrmann1-7/+9
2001-06-14Replace "scm_*_t" with "scm_t_*", except "scm_lisp_t".Marius Vollmer1-1/+1
2001-06-14replace "scm_*_t" with "scm_t_*".Marius Vollmer1-1/+1
2000-04-03Lots of fixes to make guile (at some time) compile with strict typing.Dirk Herrmann1-2/+2
2000-03-19 * *.[hc]: add Emacs magic at the end of file, to ensure GNUMichael Livshin1-0/+6
indentation style.
2000-03-14* eval.c, lang.c, lang.h (scm_lisp_nil, scm_lisp_t): Renamed fromMikael Djurfeldt1-6/+6
scm_nil, scm_t. (Thanks to Dirk Herrmann.)
2000-03-02* list.c: Moved append docs to append! Thanks Dirk Hermann. Also,Greg J. Badros1-1/+1
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!
1999-07-27* Makefile.am (EXTRA_libguile_la_SOURCES): Added lang.c.Mikael Djurfeldt1-0/+71
* lang.c: New file: Beginning of multi-language support.