* module/ice-9/boot-9.scm (cond, case): Reimplement using syntax-case,
with improved error messages and support for '=>' within 'case' as
mandated by the R7RS. Add warnings for duplicate case datums and
case datums that cannot be meaningfully compared using 'eqv?'.
* module/system/base/message.scm (%warning-types): Add 'bad-case-datum'
and 'duplicate-case-datum' warning types.
* test-suite/tests/syntax.test (cond, case): Update tests to reflect
improved error reporting. Add tests for '=>' within 'case'.
* test-suite/tests/tree-il.test (partial evaluation): Update tests to
reflect changes in how 'case' is expanded.
* doc/ref/api-control.texi (Conditionals): Document '=>' within 'case'.
Based on a patch by Julian Graham <julian@member.fsf.org>
* libguile/values.c, libguile/values.h (scm_c_value_ref): New function.
* doc/ref/api-control.texi (Multiple Values): Add documentation.
* test-suite/standalone/test-scm-values.c: New test program.
* test-suite/standalone/Makefile.am: Add test-scm-values test.
* libguile/deprecated.h: Mark scm_immutable_cell and
scm_immutable_double_cell as being SCM_DEPRECATED, not SCM_API.
Deprecate SCM_ASRTGO.
* libguile/deprecated.c (scm_i_deprecated_asrtgo): New support
procedure.
* doc/ref/api-control.texi (Handling Errors): Remove ASRTGO docs.
* doc/ref/api-control.texi (begin): Update to distinguish between
splicing begin and sequencing begin.
* module/ice-9/psyntax.scm (expand-expr): Add a back-compatibility shim
for `(begin)'.
* module/ice-9/psyntax-pp.scm: Regenerate.
* test-suite/tests/syntax.test: Update to run illegal (begin) test only
if we are not including deprecated features.
* doc/ref/api-control.texi (Prompt Primitives): Break call-with-prompt
and abort-to-prompt out into a subsubsection.
(Shift and Reset): New subsubsection.
* module/ice-9/boot-9.scm (while): Specify the return value as #f under
normal conditions, #t under (break), and arg... under (break arg...).
* test-suite/tests/syntax.test ("while"): Test.
* doc/ref/api-control.texi (while do): Document.
Conflicts:
doc/ref/api-procedures.texi
doc/ref/misc-modules.texi
(Caused by me removing `@page' from a couple of sections that have been modified
by others.)
* doc/ref/api-control.texi (Handling Errors): Move the "Signalling Type
Errors" section here.
* doc/ref/data-rep.texi (Data Representation): Refactor, lopping and
cropping and stitching.
* doc/ref/libguile-concepts.texi (Dynamic Types):
* doc/ref/libguile-smobs.texi (Describing a New Type, Double Smobs):
* doc/ref/guile.texi (Guile Implementation, Programming in C): Adapt to
refactorings.
* doc/ref/history.texi (A Scheme of Many Maintainers):
(A Timeline of Selected Guile Releases, Status): Update.
* libguile/deprecated.h:
* libguile/deprecated.c (scm_internal_lazy_catch, scm_lazy_catch):
Deprecate, and print out a nasty warning that people should change to
with-throw-handler.
* libguile/throw.h:
* libguile/throw.c (scm_c_with_throw_handler): Deprecate the use of the
lazy_catch_p argument, printing out a nasty warning if someone
actually passes 1 as that argument. The combination of the pre-unwind
and post-unwind handlers should be sufficient.
* test-suite/tests/exceptions.test: Remove lazy-catch tests, as they are
deprecated. Two of them fail:
* throw/catch: effect of lazy-catch unwinding on throw to another key
* throw/catch: repeat of previous test but with lazy-catch
Hopefully people are not depending on this behavior, and the warning is
sufficiently nasty for people to switch. We will see.
* test-suite/tests/eval.test ("promises"): Use with-throw-handler
instead of lazy-catch.
* doc/ref/api-debug.texi:
* doc/ref/api-control.texi: Update to remove references to lazy-catch,
folding in the useful bits to with-throw-handler.
Thanks to Inge Gutheil for raising this problem.
* doc/ref/api-control.texi (Dynamic Wind): Remove doc for
scm_t_dynwind_flags, and change uses of scm_t_dynwind_flags to int.
Mention possible flags inside doc for scm_dynwind_begin instead.
Similarly for scm_t_wind_flags. In this case the doc on possible
flags is moved to after the four functions that can use them.
* libguile/dynwind.c (scm_dynwind_begin): Change scm_t_dynwind_flags
to int.
(scm_dynwind_unwind_handler): Change scm_t_wind_flags to int.
(scm_dynwind_rewind_handler): Ditto.
(scm_dynwind_unwind_handler_with_scm): Ditto.
(scm_dynwind_rewind_handler_with_scm): Ditto.
* libguile/dynwind.h (SCM_F_DYNWIND_REWINDABLE): Use #define instead
of typedef enum.
(SCM_F_WIND_EXPLICITLY): Ditto.
(function declarations): Change scm_t_dynwind_flags and
scm_t_wind_flags to int.
* test-suite/standalone/test-unwind.c (check_cont_body): Change
scm_t_dynwind_flags to int.
Since continuation barriers protect against non-local exits, it makes
better sense to document them in the same section as continuations and
exceptions.
(Throw): Moved to after the Lazy Catch node.
(Catch): Enhance to cover the optional pre-unwind handler, and new
APIs scm_c_catch, scm_catch_with_pre_unwind_handler.
(Lazy Catch): Describe relationship to with-throw-handler.
Document that the handler may return, and what happens if it does.
(Throw): Mention that a throw can be handled by a throw handler as
well as by a catch.
* scheme-compound.texi: Renamed to api-compound.texi.
* scheme-control.texi: Renamed to api-control.texi.
* scheme-data.texi: Renamed to api-data.texi.
* scheme-debug.texi: Renamed to api-debug.texi.
* deprecated.texi: Renamed to api-deprecated.texi.
* scheme-evaluation.texi: Renamed to api-evaluation.texi.
* ref-init.texi: Renamed to api-init.texi.
* scheme-io.texi: Renamed to api-io.texi.
* scheme-memory.texi: Renamed to api-memory.texi.
* scheme-modules.texi: Renamed to api-modules.texi.
* scheme-options.texi: Renamed to api-options.texi.
* scm.texi: Renamed to api-overview.texi.
* scheme-procedures.texi: Renamed to api-procedures.texi.
* scheme-scheduling.texi: Renamed to api-scheduling.texi.
* scheme-scm.texi: Renamed to api-scm.texi.
* scheme-smobs.texi: Renamed to api-smobs.texi.
* scheme-snarf.texi: Renamed to api-snarf.texi.
* scheme-translation.texi: Renamed to api-translation.texi.
* scheme-utility.texi: Renamed to api-utility.texi.
* debugging.texi: Renamed to scheme-debugging.texi.
* scripts.texi: Renamed to scheme-scripts.texi.
* program.texi: Renamed to libguile-program.texi.
