| Commit message (Collapse) | Author | Age | Files | Lines |
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* eval.c (op_catch, expand_catch_clause,
expand_catch): New static functions.
(expand): Handle catch operator.
(eval_init): Added catch operator to op_table,
and registered new functions throw, throwf and error.
* txr.1: Documented catch operator and created
stub section for throw, throwf and error.
* txr.vim: Updated.
* unwind.c (uw_throwfv, uw_errorfv): New functions.
* unwind.h (uw_throwfv, uw_errorfv): Declared.
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(debug): In backtrace, show the renaming pairs for unbound
variables (up_p_a_pairs) if they are present.
* debug.h (debug_begin): Renamed to debug_frame.
* eval.c (eval): Wrap debug_begin/debug_end around function dispatch,
so TXR Lisp functions are included in backtraces.
* match.c (h_fun): Follow rename of debug_begin to debug_frame.
Pass in evaluated args, not the original ones.
(v_fun): Likewise.
* unwind.c (uw_push_debug): bindings argument renamed to env.
Bugfix: args argument was being assigned to ub_p_a_pairs.
* unwind.h (struct uw_debug): Member bindings renamed to env.
(uw_push_debug): Declaration updated.
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* unwind.c (uw_unwind_to_exit_point): When jumping to a catch frame,
do not mark it invisible.
* unwind.h (uw_catch): Flip the matches to nil so that this catch
frame can no longer be identified as an unwind point by uw_throw,
and thus will not be re-entered for the purposes of handling
an exception. It remains visible for the purposes of running the
clean up code.
(uw_unwind): Prior to executing cleanup forms, flip the visibility
to 0. This means that the frame will no longer be re-entered
for any reason.
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* eval.c (op_unwind_protect): Use uw_simple_catch_begin,
and remove the uw_catch (exsym, exvals) clause. Put
explicit braces around the unwind code even though it
is only one statement.
* match.c (do_txeval): Got rid of empty uw_unwind clause.
This is not needed any longer.
(v_try): Got rid of explicit uw_do_unwind calls.
* unwind.h (uw_simple_catch_begin): New macro.
(uw_do_unwind): Macro removed.
(uw_catch): Added goto uw_unwind_label at the front.
This way if the previous clause falls through,
control goes to the unwind logic.
(uw_unwind): Got rid of initial break. Previous
clause should fall through to unwind logic,
whether it is the main clause, or one of the catches.
(uw_catch_end): Default case aborts, because
we don't expect this.
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Lisp interpreter added.
* gc.c (finalize, mark_obj): Handle ENV objects.
* hash.c (struct hash): acons_new_l_fun function
pointer order of arguments change.
(equal_hash): Handle ENV.
(make_hash, gethash_l): Use cobj_handle for
type safety. Follow change in acons_new_l.
(gethash, gethash_f, remhash, hash_count,
hash_get_userdata, hash_set_userdata, hash_next): Use cobj_handle.
(gethash_n): New function.
* hash.h (gethash_n): Declared.
* lib.c (env_s): New symbol variable.
(code2type, equal): Handle ENV. (plusv, minusv, mul, mulv, trunc, mod,
gtv, ltv, gev, lev, maxv, minv, int_str): New functions.
(rehome_sym): New static function.
(func_f0, func_f1, func_f2, func_f3, func_f4, func_n0, func_n1,
func_n2, func_n3, func_n4): Initialize new fields of struct func.
(func_f0v, func_f1v, func_f2v, func_f3v, func_f4v,
func_n0v, func_n1v, func_n2v, func_n3v, func_n4v,
func_interp): New functions.
(apply): Function removed: sanely re-implemented in new eval.c file.
(funcall, funcall1, funcall2, funcall3, funcall4): Handle
variadic and interpreted functions.
(acons, acons_new, acons_new_l, aconsq_new, aconsq_new_l): Reordered
arguments for compatibility with Common Lisp acons.
(obj_init): Special hack to prepare hash_s symbol, which is
needed for type checking inside the hash table funtions invoked
by make_package, at a time when the symbol is not yet interned.
Initialize new env_s variable.
(obj_print, obj_pprint): Handle ENV. Fix confusing rendering of
of function type.
(init): Call new function eval_init.
* lib.h (enum type): New enumeration member ENV.
(struct func): functype member changed to bitfield.
New bitfied members minparam and variadic.
New members in f union: f0v, f1v, f2v, f3v,
f4v, n0v, n1v, n2v, n3v, n4v.
(struct env): New type.
(union obj): New member e of type struct env.
(env_s): Variable declared.
(plusv, minusv, mul, mulv, trunc, mod, gtv, ltv, gev, lev, maxv, minv,
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* Makefile (OBJS): New object file debug.o.
* dep.mk: Updated.
* match.c (h_fun): Use debug_begin and debug_end macros
to set up a debug frame for backtracing.
(match_line, match_files): Call debug_check to give debugger a chance
to instrument call.
(v_fun): Use debug_begin and debug_end macros to set up a debug frame
for backtracing. Call debug_check to give debugger a chance to
instrument call.
* stream.c (struct strm_ops): New function pointer, flush.
(stdio_maybe_write_error): Wrong word in error message corrected.
(stdio_flush): New static function.
(stdio_ops, pipe_ops): New function entered into tables.
(flush_stream): New function.
* stream.h (flush_stream): Declared.
* txr.c (help): New options documented.
(main): call to debug_init added. New debug options parsed and
opt_debugger set accordingly.
* unwind.c (uw_push_debug, uw_current_frame): New function.
* unwind.h (uw_frtype): New enumeration member UW_DBG.
(struct uw_debug): New frame variant.
(union uw_frame): New member, db.
(uw_push_debug, uw_current_frame): Declared,
* debug.c: New file.
* debug.h: New file.
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(get_filter): Handle (fun ...) syntax.
* match.c (v_bind): Establish dynamic environment frame around
dest_bind, and stash the bindings there so filters can have access
to the bindings.
(v_output): Likewise, around do_output calls.
(v_fun): New function.
(match_files): Function handling broken out into v_fun.
(match_funcall): New function.
* match.h (match_funcall): Declared.
* unwind.c (uw_push_env): Initialize match_context.
(uw_get_match_context, uw_set_match_context): New functions.
* unwind.h (struct uw_dynamic_env): New member, match_context.
(uw_get_match_context, uw_set_match_context): Declared.
* txr.1: Documented function filters.
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* unwind.c (uw_env_stack): New static variable.
(uw_unwind_to_exit_point): Maintain correct uw_env_stack
during unwinding.
(uw_find_env): Just retrieve the env stack pointer; no search.
(uw_push_env): Store a pointer to the previous
environmental frame and just initialize the bindings to nil.
No need to cons up a copy of the bindings from the previous frame.
(uw_get_func): Perform a search through the environment stack.
* unwind.h (struct uw_dynamic_env): New member, up_env.
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hash.h, lib.c, lib.h, match.c, match.h, parser.h, parser.l, parser.y,
regex.c, regex.h, stream.c, stream.h, txr.1, txr.c, txr.h, unwind.c,
unwind.h, utf8.c, utf8.h: Updated e-mail address.
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lib.h, match.c, match.h, parser.h, parser.l, parser.y, regex.c,
regex.h, stream.c, stream.h, txr.1, txr.c, txr.h, unwind.c, unwind.h,
utf8.c, utf8.h: Updated copyright year.
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have a _s suffix.
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can be converted to a type long and vice versa. The configure
script tries to detect the appropriate type to use. Also,
some run-time checking is performed in the streams module
to detect which conversions specifier strings to use for
printing numbers.
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we wouldn't have to declare object variables at all, so why
use an obtuse syntax to do so?)
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abstraction instead of directly using C standard I/O,
to eliminate most uses of C formatted I/O,
and fix numerous bugs, such variadic argument lists which
lack a terminating ``nao'' sentinel.
Bug 28033 is addressed by this patch, since streams no longer provide
printf-compatible formatting. The native formatter is extended with
some additional capabilities to take over.
The work on literal objects is expanded and they are now used
throughout the code base.
Fixed bad realloc in string output stream: reallocating by number
of wide chars rather than bytes.
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use wide character functions so that there is no illicit
mixing. (But the goal is to replace this usage with txr streams).
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This is incomplete. There are too many dependencies on
wide character support from the C stream I/O library,
and implicit use of some encoding which may not be UTF-8.
The regex code does not handle wide characters properly.
Character type is still int in some places, rather than wchar_t.
Test suite passes though.
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