| Commit message (Collapse) | Author | Age | Files | Lines |
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* unwind.c (uw_find_frame): New function.
(uw_late_init): Registered find-frame intrinsic.
* unwind.h (uw_find_frame): Declared.
* lib.h (default_arg_strict): New inline function.
Will not replace nil value with default.
* txr.1: Documented find-frame.
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* unwind.c (types_s, jump_s): New symbol variables.
(frame_type, catch_frame_type, handle_frame_type): New globals
denoting struct types.
(uw_get_frames, uw_invoke_catch): New functions.
(uw_late_init): Initialize new global variables.
Register get-frames and invoke-catch intrinsics.
* unwind.h (uw_get_frames, uw_invoke_catch): Declared.
* txr.1: Documented frame, catch-frame,
handle-frame, get-frames and invoke-catch.
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* eval.c (handler_bind_s): New symbol variable.
(op_handler_bind): New static function.
(do_expand): Traverse handler-bind forms.
(eval_init): Initialize handler_bind_s variable and register handler-bind
operator.
* lisplib.c (except_set_entries, except_instantiate): New functions.
(lisplib_init): Register new functions in dl_table.
* parser.c (intr_s): New symbol variable.
(repl_intr): Throw exception of type intr, rather than error.
This way we can interrupt accidental exception handling loops involving
exceptions derived from error.
(parse_init): Initialize intr_s.
* share/txr/stdlib/except.tl: New file, defines handle macro.
* unwind.c (uw_push_handler): New function.
(invoke_handler): New static function.
(uw_throw): Search loop looks for and processes handlers in addition to
catches.
* unwind.h (uw_frtype_t): New enum member, UW_HANDLE.
(struct uw_catch): Move member visible so it
is in the same position as in struct uw_handler.
(struct uw_handler): New struct type.
(union uw_frame): New member ha of type struct uw_handler.
(uw_push_handler): Function declared.
* txr.1: Added introductory paragraphs to Exception Handling section.
Documented handler-bind and handle. Some minor errors corrected.
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* args.c (args_copy_to_list): New function.
* args.h (ARGS_MIN): New preprocessor symbol.
(args_add_list): New inline function.
(args_copy_to_list): Declared.
* debug.c (debug): Args in debug frame are now struct args *.
Pull them out nondestructively for printing using
args_copy_to_list.
* eval.c (do_eval_args): Fill struct args argument list
rather than returning evaluated list.
Dot position evaluation is handled by installing
the dot position value as args->list.
(do_eval): Allocate args of at least ARGS_MAX for the
call to do_eval_args. Then use generic_funcall to
invoke the function rather than apply.
(eval_args_lisp1): Modified similarly to do_eval_args.
(eval_lisp1): New static function.
(expand_macro): Construct struct args argument list for
the sake of debug_frame.
(op_dwim): Allocate args which are filled by eval_args_lisp1,
and applied to the function/object with generic_funcall.
The object expression is separately evaluated with
eval_lisp1.
* match.c (h_fun, v_fun): Construct struct args arglist for
the sake of debug_frame call.
* unwind.c (uw_push_debug): args argument becomes
struct args *.
* unwind.h (struct uw_debug): args member becomes
struct args *.
(uw_push_debug): Declaration updated.
* txr.1: Update documentation about dot position argument in
function calls. (list . a) now works, which previously didn't.
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Function arguments are now allocated on the stack using alloca,
in conjunction with the struct alloc header structure.
The generic_funcall and apply functions are refactored
for this, as are most functions that take variadic arguments.
* args.c (args_add_list, args_cons_list): Functions removed.
(args_normalize, args_normalize_fill): New functions.
(args_get_checked): Draw arguments from list when array runs out.
(args_copy, args_copy_zap): New functions.
* args.h (ARGS_MAX): Reduced to 32.
(ARGS_MIN): New preprocessor symbol.
(args_init): Call args_init_list.
(args_add2, args_add3, args_add4): New inline functions.
(args_more): Take into account list, which may hold additional arguments.
(args_two_more): New inline function.
(args_normalize, args_normalize_fill): Declared.
(args_get_list): Normalize all arguments into one list and return it.
(args_get_rest, args_at, args_atz): New inline functions.
(args_get): Draw arguments from list when array runs out.
(args_clear): New inline function.
* arith.c (maskv): Convert to new args.
* eval.c (APPLY_ARGS): Preprocessor symbol removed.
(bind_args): Converted to accept struct args.
(apply): Function reduced down to trivial adapter which
converts a list of arguments to args, and calls the new
generic_funcall.
(applyv): New static function: struct args wrapper
around apply_intrinsic.
(iapply): Converted to struct args.
(call): Static function removed. The call intrinsic
function binding now goes directly to generic_funcall.
(list_star_intrinsic, interp_fun): Converted to struct args.
(op_catch): Adjustments for bind_args, which requires
a struct args arglist.
(me_op): Must use the new minl and maxl, since minv and maxv
don't take lists any more.
(mapcarv, mappendv, lazy_mapcarv, lazy_mappendv, mapdov,
weavev, or_fun, and_fun, tf, nilf, do_retf, do_apf,
do_ipf, callf, do_mapf, mapf): Converted.
(mapcarl): New function, like the old mapcarv.
(eval_init): call_f initialized from generic_funcall
rather than call. apply registered to applyv rather than
apply_intrinsic. Registrations for zip, hash_from_pairs, vec,
alist-remove, alist-nremove, and throw similarly updated to
new or renamed functions.
* eval.h (interp_fun, mapcarv): Declarations updated.
(mapcarl): Declard.
* hash.c (hashv): Converted to struct args.
(hashl): New function.
(hash_construct): Use hashl, not hashv.
(hash_from_pairs, hash_list, group_by): Converted.
* hash.h (hashv, hash_construct, hash_from_pairs, hash_list,
group_by): Declarations updated.
(hashl): Declared.
* lib.c (appendv, nconcv, lazy_appendv): Converted to
struct args.
(lazy_appendl): New function.
(multi): Converted.
(listv): New function.
(nary_op, plusv, mulv, logandv, logiorv, gtv, ltv, gev, lev,
numeqv, numneqv, maxv, minv): Converted.
(maxl, minl): New functions, like old maxv and minv.
(exptv, gcdv, lcmv, lessv, greaterv, lequalv, gequalv): Converted.
(func_f0v, func_f1v, func_f2v, func_f3v, func_f4v): Converted.
(func_n0v, func_n1v, func_n2v, func_n3v, func_n4v): Converted.
(func_n0v, func_n1v, func_n2v, func_n3v, func_n4v): Converted.
(func_n1ov, func_n2ov, func_n3ov): Converted.
(generic_funcall): Converted to take struct args.
(funcall, funcall1, funcall2, funcall4): Pass stack-allocated
struct args as trailing arguments to variadic functions, and to
generic_funcall.
(do_curry_12_1_v): New struct-args-based static function,
needed to implement curry_12_1_v now.
(curry_12_1_v): Converted.
(transposev): New function based on previous tranpose.
(transpose): Now a wrapper for transposev.
(do_chain, chainv, do_chand, chandv, do_juxt, juxtv,
do_and, andv, do_or, orv, do_not, do_iff): Converted.
(vectorv): New function. Implementation basis for vec intrinsic function.
(alist_removev, alist_nremovev): New functions.
(multi_sort): Switch from mapcarv to mapcarl.
(unique): Converted.
(uniq): Allocate struct args for calling unique.
(obj_init): list_f function now based on new listv, rather than
identity.
* list.h (varg): New typedef.
(struct func): All variadic function pointers converted to use
struct args.
(appendv, nconcv, lazy_appendv, multi, nary_op, plusv, minusv,
mulv, gtv, ltv, gev, lev, numeqv, numneqv, maxv, minv, exptv,
gcdv, lcmv, logadnv, logiorv, maskv, lessv, greaterv, lequalv,
gequalv, func_f0v, func_f1v, func_f2v, func_f3v, func_f4v,
func_n0v, func_n1v, func_n2v, func_n3v, func_n4v, func_n0v,
func_n1v, func_n2v, func_n3v, func_n4v, func_n1ov, func_n2ov,
func_n3ov, generic_funcall, chainv, chandv, juxtv, adnv, orv,
unique): Declarations updated.
(lazy_appendl, listv, maxl, minl, transposev,
vectorv, alist_removev, alist_nremovev): Declared.
* stream.c (make_catenated_stream_v): New function.
(aformat): Renamed to formatv. The recognition of the nil
and t streams (standard output and string) is done here now.
(vformat): Follow rename of aformat to formatv.
(formatv): Function removed. Nobody calls this anymore.
(stream_init): make-catenated-stream re-registered to new
make_catenated_stream_v function.
* stream.h (formatv): Declaration updated.
(make_catenated_v): Declared.
* syslog.c (syslog_init): syslog registred to syslog_wrapv.
(syslog_wrapv): New function based on syslog_wrap converted to struct
args.
(syslog_wrap): Now wrapper for syslog_wrapv.
* syslog.h (syslog_wrapv): Declared.
* unwind.h (uw_throwv): New function.
(uw_throwfv, uw_errorfv): Converted to struct args.
* unwind.h (uw_throwv): Declared.
(uw_throwfv, uw_errorfv): Declarations updated.
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One upshot of all this is that (throw 'foo "msg") now
does exactly the same thing as (throwf 'foo "msg").
A message-only exception really is a one-string exception argument
list ("message ..."), like the documentation says.
* unwind.h (struct uw_catch): exception member renamed to args.
(uw_catch): Macro follows structure member rename.
* eval.c (op_catch): Removed now unnecessary kludge of turning non-list
exception argument list into a one-element argument list.
* match.c (v_try): Similar hack to the one in op_catch
removed here.
* unwind.c (uw_unwind_to_exit_point, uw_push_catch): Follows rename of
exception member.
(uw_throw): The exception parameter is renamed to args. The kludge
removed from op_catch re-appears here, because numerous calls
to uw_throw just pass a string as args. It's less of a kludge here
because this is the master entry point to exception processing,
and it straightens out the representation right away.
The exception arguments or message are printed in a clearer way.
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(uw_throw): In the unhandled case, check if *unhandled-hook* variable
has a function, and use it instead of the default logic. If it's not a
function, abort with an error message. Clear it so that if the hook
function re-enters this code, it will not be used. Always exit now on
unhandled exceptions; do not abort.
(uw_late_init): New function.
* unwind.h (uw_late_init): Declared.
* lib.c (init): Call uw_late_init.
* txr.1: Documented *unhandled-hook*.
* genvim.txr: Scan the unwind.c file, since it has a reg_var now.
* tl.vim, txr.vim: Updated.
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* arith.c, arith.h, combi.c, combi.h, debug.c, debug.h, eval.c, eval.h,
filter.c, filter.h, gc.c, gc.h, hash.c, hash.h, lib.c, lib.h,
match.c, match.h, parser.h, rand.c, rand.h, regex.c, regex.h,
signal.c, signal.h, stream.c, stream.h, sysif.c, sysif.h, syslog.c,
syslog.h, txr.c, txr.h, unwind.c, unwind.h, utf8.c, utf8.h:
Update.
* LICENSE, METALICENSE: Likewise.
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replace with do { } while (0), since we don't have any instances of a
uw_block_begin followed by declarations.
(uw_catch_begin): Move SYMVAR and EXCVAR inside the do/while block,
so that the expansion doesn't begin with a declaration.
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debug.h, eval.c, eval.h, filter.c, filter.h, gc.c, gc.h, hash.c,
hash.h, lib.c, lib.h, match.c, match.h, parser.h, parser.l, parser.y,
rand.c, rand.h, regex.c, regex.h, signal.c, signal.h, stream.c,
stream.h, syslog.c, syslog.h, txr.c, txr.h, unwind.c, unwind.h,
utf8.c, utf8.h: Synchronize license header with LICENSE.
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directory.
* txr.c (help): Help text updated to document --license option.
(license): New function.
(txr_main): Implement --license option.
* unwind.h (uw_catch): Add cast to suppress warning about unused symbol.
* txr.1: Document --license option.
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Basically the dwim operator is just a Lisp-1 version of the call
operator now. It doesn't have to do anything funny with non-function
objects, since they are callable.
* lib.c (chr_str, chr_str_set, vecref, vecref_l): Replace
inappropriate internal assertions with error exceptions.
* unwind.h (numeric_assert, range_bug_unless): Unused macros
removed.
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* Makefile (OBJS-y): Include signal.o if have_posix_sigs is "y".
* configure (have_posix_sigs): New variable, set by detecting POSIX
signal stuff.
* dep.mk: Regenerated.
* arith.c, debug.c, eval.c, filter.c, hash.c, match.c, parser.y,
parser.l, rand.c, regex.c, syslog.c, txr.c, utf8.c: Include new
signal.h header, now required by unwind, and the <signal.h> system
header.
* eval.c (exit_wrap): New function.
(eval_init): New functions registered as intrinsics: exit_wrap,
set_sig_handler, get_sig_handler, sig_check.
* gc.c (release): Unused functions removed.
* gc.h (release): Declaration removed.
* lib.c (init): Call sig_init.
* stream.c (set_putc, se_getc, se_fflush): New static functions.
(stdio_put_char_callback, stdio_get_char_callback, stdio_put_byte,
stdio_flush, stdio_get_byte): Use new functions to enable
signals when blocked on I/O.
(tail_strategy): Allow signals across sleep.
(pipev_close): Allow signals across waitpid.
(se_pclose): New static function.
(pipe_close): Use new function to enable signals across pclose.
* unwind.c (uw_unwind_to_exit_point): use extended_longjmp instead of
longjmp.
* unwind.h (struct uw_block, struct uw_catch): jb member changes from
jmp_buf to extended_jmp_buf.
(uw_block_begin, uw_simple_catch_begin, uw_catch_begin): Use
extended_setjmp instead of setjmp.
* signal.c: New file.
* signal.h: New file.
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Fixing some errors in copyright comments.
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deviations from C90, like mixed declations and
statements. GCC doesn't diagnose these without the
--pedantic flag.
* configure: GCC's --ansi flag should be spelled -ansi.
* lib.c (split_str, obj_print): Reorder declaration before statements.
(make_sym): Fix similar problem by eliminating a statement.
(funcall1, funcall2, funcall3, funcall4): Use assignment to initialize
local array with non-constant elements. This is actually good for
performance because we only initialize those parts of the array that
we use.
* lib.h (struct func): Change functype member to unsigned,
since enum-typed bitfields are a GCC extension.
* match.c (ml_all, mf_all): Use assignments to initialize local
struct with non-constants.
(do_txeval, v_collect): Slightly revise unwinding macrology with help
of new macros to avoid mixing declarations and statements.
(spec_bind): Removed spurious semicolon from macro expansion.
(v_gather): Reorder two lines to avoid mixed decls and
statements.
(match_filter): Move declaration of ret a few lines up, ahead of
statements.
* unwind.c (uw_pop_until): New function.
* unwind.h (uw_pop_until): Declared.
(uw_mark_frame, uw_fast_return): New macros.
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happen to request a successful termination by invoking @(accept)
the position must not advance into the trailer material.
* match.c (v_trailer): Added an unwind protect which
detects that an accept is taking place and adjusts the return value to
restrict the input position at the point given to trailer.
(accept_fail): Use uw_block_return_proto instead of uw_block_return
and pass the symbol as the protocol identifier.
* unwind.c (uw_current_exit_point): New function.
(uw_block_return): Function renamed to uw_block_return_proto;
takes new parameter which is stored in the block structure.
* unwind.h (struct uw_block): New member, protocol.
(uw_block_return): Becomes an inline wrapper for uw_block_return_proto.
(uw_block_return_proto, uw_current_exit_point): Declared.
* txr.1: Interaction between @(trailer) and @(accept) documented.
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* arith.h: Likewise.
* debug.c: Added copyright header.
* debug.h: Updated copyright year.
* eval.c: Likewise.
* eval.h: Likewise.
* filter.c: Likewise.
* filter.h: Likewise.
* gc.c: Likewise.
* gc.h: Likewise.
* hash.c: Likewise.
* hash.h: Likewise.
* lib.c: Likewise.
* lib.h: Likewise.
* match.c: Likewise.
* match.h: Likewise.
* parser.h: Likewise.
* regex.c: Likewise.
* regex.h: Likewise.
* stream.c: Likewise.
* stream.h: Likewise.
* txr.c: Likewise, and e-mail address.
* txr.h: Updated copyright year.
* unwind.c: Likewise.
* unwind.h: Likewise.
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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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