| Commit message (Collapse) | Author | Age | Files | Lines |
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* stream.h (struct strm_ops): seek operation's second argument
is now just a val.
* stream.c (unimpl_seek, null_seek): Second argument is a val,
not cnum, to conform with function pointer in stream
structure.
(stdio_seek): Accept offset as val, which could be a fixnum
or bignum. Use new stdio_ftell and stdio_fseek functions
so large values work.
(seek_stream): No need to convert offset argument to cnum;
pass the val directly to seek virtual function.
* sysif.c (off_t_num, num_off_t, stdio_ftell,
stdio_fseek): New functions.
* sysif.h (OFF_T_MAX, OFF_T_MIN): New preprocessor symbols.
(off_t_num, num_off_t, stdio_ftell, stdio_fseek): Declared.
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* configure: Test for ftruncate and chsize.
* stream.c (unimpl_truncate): New static function.
(fill_stream_ops): Default the truncate operation to unimpl_truncate.
(null_ops): Initialize truncate to unimpl_truncate.
(stdio_truncate): New static function.
(stdio_ops, tail_ops): Initialize truncate to stdio_truncate.
(pipe_ops, dir_ops, string_ops, byte_in_ops, string_out_ops,
strlist_out_ops, cat_stream_ops): Initialize truncate to null,
so it gets defaulted by fill_stream_ops.
(truncate_stream): New function.
(stream_init): Register truncate-stream intrinsic.
* stream.h (struct strm_ops): New member, truncate.
(strm_ops_init): New truncate argument added to macro.
(truncate_stream): Declared.
*syslog.c (syslog_strm_ops): Initialize truncate to null.
* txr.1: Documented.
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* lib.c (init): Move hash_init and struct init
before sysif_init.
* share/txr/stdlib/path-test.tl (sys:path-test-mode,
path-mine-p, path-my-group-p, sys:path-access,
path-newer, path-examine): Convert to struct return
of stat functions.
* stream.c (dev_k, ino_k, mode_k, nlink_k, uid_k,
gid_k, rdev_k, size_k, blksize_k, blocks_k, atime_k,
mtime_k, ctime_k): Global variable definitions removed from here.
(stream_init): Initializations of moved global
variables removed from here.
* stream.h (dev_k, ino_k, mode_k, nlink_k, uid_k,
gid_k, rdev_k, size_k, blksize_k, blocks_k, atime_k,
mtime_k, ctime_k): Declarations removed from here.
* sysif.c (stat_s, dev_s, ino_s, mode_s, nlink_s,
uid_s, gid_s, rdev_s, size_s, blksize_s, blocks_s,
atime_s, mtime_s, ctime_s): New global variables.
(dev_k, ino_k, mode_k, nlink_k, uid_k, gid_k, rdev_k,
size_k, blksize_k, blocks_k, atime_k, mtime_k,
ctime_k): Existing variables moved here.
(stat_to_struct): New static function.
(stat_impl): Use stat_to_struct, except under
113 compatibility.
(sysif_init): Initialize new symbol variables.
Make stat struct type.
* sysif.h (stat_s, dev_s, ino_s, mode_s, nlink_s,
uid_s, gid_s, rdev_s, size_s, blksize_s, blocks_s,
atime_s, mtime_s, ctime_s): Declared.
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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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* stream.h (statf): Declaration removed.
* sysif.c (w_stat): Function takes val instead of const wchar_t *
as leftmost argument.
(w_lstat, w_fstat): New static functions, with same interface as w_stat.
(stat_to_list, stat_impl): New static functions.
(statp, statl): New static functions.
(statf): Function removed, name re-used for new static function.
(sysif_init): stat intrinsic registered to statp function, not statf.
lstat and fstat intrinsics registered to statl and statf.
* txr.1: Documented lstat and fstat.
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* hash.c (hash_print_op): Take third argument,
and call cobj_print_impl rather than cobj_print.
* lib.c (cobj_print_op): Take third argument. The object class is
* printed with obj_print_impl.
(obj_print_impl): Static function becomes extern. Passes its pretty
flag argument to cobj print virtual function.
* lib.h (cobj_ops): print takes third argument.
(cobj_print_op): Declaration updated.
(obj_print_impl): Declared.
* regex.c (regex_print): Takes third argument, and ignores it.
* stream.c (stream_print_op, stdio_stream_print, cat_stream_print):
Take third argument, and ignore it.
* stream.h (stream_print_op): Declaration updated.
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* eval.c (op_error): New static function.
(macro_form_p, fboundp): Static to external.
(special_operator_p): New function.
(eval_init): Register macrolet and symacrolet to op_error.
These are recognized and processed by expand, but we want
them in the op table so they are reported by special_operator_p.
* eval.h (fboundp, macro_form_p, special_operator_p): Declared.
* hash.c (print_key_val): Break long lines on spaces
between pairs with stream_width_check.
(hash_print_op): Implement split and indented printing.
* lib.c (obj_print_impl): New static function, resulting
from a merge of obj_print and obj_pprint. Fixes some
wrong-way recursion bugs: obj_pprint recursed into obj_print
in some places. Adds support for multi-line printing of
vectors and lists, with indentation using the new
interfaces in streams.
* stream.c (strm_base_init): Update initializer.
(put_indent, indent_mode_put_string): New static functions.
(put_string): Use indent_mode_put_string in either of the
two indent modes.
(put_char): Implement indent mode.
(get_indent_mode, test_set_indent_mode,
set_indent_mode, get_indent, set_indent,
inc_indent, width_check): New functions.
* stream.h (enum indent_mode): New.
(struct strm_base): indent_on member becomes indent_mode.
New members data_width and code_width.
(get_indent_mode, test_set_indent_mode,
set_indent_mode, get_indent, set_indent,
inc_indent, width_check): Declared.
* tests/009/json.expected: Updated.
* tests/010/seq.expected: Likewise.
* tests/011/macros-2.expected: Likewise.
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we can give streams some common slots.
* stream.c (strm_base_init, strm_base_cleanup, strm_base_mark,
stream_destroy_op, stream_mark_op): New functions.
(null_ops): Switch to stream_destroy_op and stream_mark_op.
(make_null_stream): Associate a strm_base instance with the
cobj handle rather than a null pointer.
(struct stdio_handle): Inherit struct strm_base.
(stdio_stream_destroy): Clean up the strm_base part.
(stdio_stream_mark): Mark the strm_base part.
(make_stdio_stream_common): Initialize the strm_base part.
(struct dir_handle): Inherit struct strm_base.
(dir_destroy): Clean up the strm_base part.
(dir_mark): Mark the strm_base part.
(make_dir_stream): Initialize the strm_base part.
(struct string_in): New structure. Replaces ad-hoc cons
cell used for string input streams.
(string_in_stream_mark): Mark new structure.
(string_in_get_line, string_in_get_char, string_in_unget_char,
string_in_get_prop, string_in_get_error, make_string_input_stream):
Convert to new structure.
(string_in_ops): Switch to stream_destroy_op.
(struct byte_input): Inherit struct strm_base.
(byte_in_stream_destroy): No need to check handle for null.
No need to set handle to null after freeing: gc does it.
Clean up the strm_base part.
(byte_in_ops): Switch to stream_mark_op.
(make_string_byte_input_stream): Initialize the strm_base part.
(struct string_output): Inherit struct strm_base.
(string_out_stream_destroy): No need to check handle for null
since the logic elsewhere has changed.
Clean up the strm_base part.
No need to set handle to null.
(string_out_ops): Switch to stream_mark_op.
(make_string_output_stream): Initialize the strm_base part.
(get_string_from_stream): Don't free the handle.
Null out the buffer so->buf whose ownership passes to the string.
(struct strlist_out): New structure. Replaces ad-hoc cons cell
used for string list output stream.
(strlist_mark): Renamed to strlist_out_mark. Mark the strm_base
part.
(strlist_out_put_string, strlist_out_put_char,
make_strlist_output_stream, get_list_from_stream):
Convert to new structure.
(strlist_out_ops): Switch to stream_destroy_op.
Follow rename of strlist_mark.
(struct cat_strm): New structure, replacing ad-hoc list pointer
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* stream.c (null_stream_print): Static function removed.
(stream_print_op): New function. Prints stream's name and address.
(null_get_prop): Pull stream name from strm_ops structure
rather than hard-coding to "null-stream".
(null_ops, stdio_ops, tail_ops, pipe_ops, string_in_ops,
byte_in_ops, string_out_ops, strlist_out_ops, dir_ops,
cat_stream_ops): Use stream_print_op in place of cobj_print_op.
Initialize name.
(stdio_stream_print): Use name from ops structure,
and include object address.
(string_in_get_prop): Likewise.
(cat_stream_print): Likewise.
* stream.h (struct strm_ops): New member, name.
(strm_ops_init): Initialize name.
(stream_print_op): Declared.
* syslog.c (syslog_strm_ops): Use stream_print_op. Initialize name.
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In many cases, if a stream operation is not applicable to a stream, it
is not appropriate to just do nothing and return nil. An error
must be thrown.
* stream.c (unimpl, unimpl_put_string, unimpl_put_char,
unimpl_put_byte, unimpl_get_line, unimpl_get_char, unimpl_get_byte,
unimpl_unget_char, unimpl_unget_byte, unimpl_seek, null_put_string,
null_put_char, null_put_byte, null_get_line, null_get_char,
null_get_byte, null_close, null_flush, null_seek, null_set_prop,
null_get_error, null_get_error_str, null_clear_error): New
static functions.
(fill_stream_ops): New function.
(null_ops): Use null_put_string, etc., instead of null pointers.
(stdio_clear_error, dir_clear_error, cat_clear_error): Return value now
indicating whether an error was cleared.
(stream_set_prop, stream_get_prop, real_time_stream_p, close_stream,
get_error, get_error_str, clear_error, get_line, get_char, get_byte,
unget_char, unget_byte, put_string, put_char, put_byte,
flush_stream): Do not test whether a function in the ops table
is defined; just call it, and return its value.
(stream_init): Call fill_stream_ops on all stream operation
structures so any null pointers are defaulted to appropriate
functions.
* stream.h (struct strm_ops): clear_error gets return value.
(fill_stream_ops): Declared.
* syslog.c (syslog_init): Call fill_stream_ops on syslog_strm_ops.
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* stream.h (catenated_stream_p, catenated_stream_push): Declared.
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* configure: Check for the poll function and set
HAVE_POLL accordingly in config.h.
* stream.h (fd_k): External declaration added.
* sysif.c (poll_wrap): New function.
(sysif_init): Registered poll-in, poll-out, poll-err,
poll-pri, poll-rdhup, poll-nval, poll-rdband, poll-wrband
variables and poll function.
* txr.1: Documented poll.
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* stream.c (fd_k): New keyword variable.
(stdio_get_prop): Handle the :fd property by returning
the file descriptor.
(open_fileno): New function.
(stream_init): Initialize fd_k, and register fileno and open-fileno.
* stream.h (open_fileno): Declared.
* txr.1: Documented open-fileno and fileno.
* utf8.c (w_fdopen): New function.
* utf8.h (w_fdopen): Declared.
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* lib.c (cobj_ops): New function.
* lib.h (cobj_ops): Declared.
* stream.c (null_ops): Initializer updated.
(struct stdio_handle): New member, err.
(stdio_stream_mark): Mark the err member.
(errno_to_string): New static function.
(stdio_maybe_read_error, stdio_maybe_error): Set persistent error
state. Use errno_to_string_function.
(stdio_put_string, stdio_put_char, stdio_put_byte, stdio_seek,
stdio_get_line): Set errno to zero, so that if the underlying
operations do not set errno on err, we don't misinterpret some pervious
errno value as pertaining to the failed stream operation.
(stdio_get_error, stdio_get_error_str, stdio_clear_error): New static
functions.
(stdio_ops, tail_ops, pipe_ops): Update initializer with new functions.
(string_in_get_error, string_in_get_error_str): New static functions.
(string_in_ops): Update initializer with new functions.
(byte_in_get_error, byte_in_get_error_str): New static functions.
(byte_in_ops): Update initializer with new functions.
(string_out_ops, strlist_out_ops): Update initializer with null
pointers for new functions.
(struct dir_handle): New struct type.
(dir_destroy, dir_mark): New functions.
(dir_get_line): Refactor for struct dir_handle context rather than DIR.
Persist error state.
(dir_close): Refactor for struct dir_handle.
(dir_get_error, dir_get_error_str, dir_clear_error): New static functions.
(dir_ops): Update initializer with new functions.
(make_stdio_stream_common): Initialize new err member.
(make_dir_stream): Refactor for struct dir_handle.
(get_error, get_error_str, clear_error): New functions.
(cat_get_error, cat_get_error_str, cat_clear_error): New static
functions.
(cat_stream_ops): Update initializer with new functions.
(stream_init): Register get-error, get-error-str, clear-error intrinsics.
* stream.h (struct strm_ops): New function pointer members, get_error,
get_error_str and clear_error.
(strm_ops_init): Macro extended with new arguments for new function pointers.
(get_error, get_error_str, clear_error): Declared.
* syslog.c (syslog_strm_ops): Update initializer with null
pointers for new functions.
* txr.1: Documented get-error, get-error-str and clear-error.
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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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* stream.h (strm_ops_init): New macro.
* stream.c (null_ops, stdio_ops, tail_ops, pipe_ops, string_in_ops,
byte_in_ops, string_out_ops, strlist_out_ops, dir_ops,
cat_stream_ops): Initialize using macro.
* syslog.c (syslog_strm_ops): Likewise.
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Close the stream unless close_after_p is specified and is nil,
or when it is missing, an there is no compatibility or it's
newer than version 102.
* stream.h (get_string): Updated declartion.
* txr.1: Documented default closing behavior of get-string
and the new optional argument for overriding it.
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the eval and stream modules.
* Makefile (OBJS): Add sysif.o.
* dep.mk: Regenerated.
* eval.c (errno_wrap, daemon_wrap, exit_wrap, usleep_wrap, getpid_wrap,
getppid_wrap, env_hash): Functions moved to sysif.c and changed
to static functions.
(eval_init): Registrations of functions moved to sysif.c.
* lib.c (init): Call sysif_init.
* stream.c (w_stat, statf, mkdir_wrap, chdir_wrap, getcwd_wrap,
makedev_wrap, minor_wrap, major_wrap, mknod_wrap): Functions
moved to sysif.c and become static functions.
(stream_init): Registration of stat moved to sysif.c.
(open_files, open_files_star): Bugfix: no longer erroneously included
in #ifdef HAVE_UNISTD_H block.
* stream.h (mkdir_wrap, chdir_wrap, getcwd_wrap, makedev_wrap,
minor_wrap, major_wrap, mknod_wrap, symlink_wrap, link_wrap,
readlink_wrap): Declarations removed.
* sysif.c: New file.
* sysif.h: New file.
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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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(stream_init): Registered new functions as intrinsics.
* stream.h (put_strings, put_lines): Declared.
* txr.1: Documented.
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* stream.c (get_string): New function.
* stream.h (get_string): Declared.
(stream_init): get_string registered as get-string intrinsic.
* txr.1: Documented get-string, and get-lines as a synonym for
lazy-stream-cons. Documented the behavioral difference of
lazy-stream-cons lazy lists for real-time and non-real-time streams.
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checking for leading slash.
* stream.c (abs_path_p): New function.
(stream_init): Register abs_path_p as abs-path-p.
* stream.h (abs_path_p): Declared.
* txr.1: Documented abs-path-p.
* dep.mk: Updated.
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be explicitly requested by the -B option.
* match.c (opt_nobindings): Variable removed.
(opt_print_bindings): New variable.
(extract): Print bindings or "false" if opt_print_bindings is true.
* stream.c (output_produced): Variable removed.
(stdio_put_string, stdio_put_char, stdio_put_byte): Remove
update of output_produced.
* stream.h (output_produced): Declaration removed.
* txr.1: Documentation updated.
* txr.c (txr_main): Option 'b' does nothing. 'B', 'l', 'a',
and '--lisp-bindings' set opt_print_bindings to 1.
* txr.h (opt_nobindings): Declaration removed.
(opt_print_bindings): Declared.
* unwind.c (uw_throw): When exiting due to a query error or
file error, print false when opt_print_bindings is true.
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GC. The issue being solved here is the accuracy of the gc_set function.
The existing impelmentation is too conservative. It has no generation
information about the memory location being stored, and so it assumes
the worst: that it is a location in the middle of a gen 1 object.
This is sub-optimal, creating unacceptable pressure against the
checkobj array and, worse, as a consequence causing unreachable gen 0
objects to be tenured into gen 1.
To solve this problem, we replace "val *" pointers with a structure
of type "loc" which keeps track of the object too, which lets us
discover the generation.
I tried another approach: using just a pointer with a bitfield
indicating the generation. This turned out to have a serious issue:
such a bitfield goes stale when the object is moved to a different
generation. The object holding the memory location is in gen 1, but the
annotated pointer still indicates gen 0. The gc_set function then
makes the wrong decision, and premature reclamation takes place.
* combi.c (perm_init_common, comb_gen_fun_common,
rcomb_gen_fun_common, rcomb_list_gen_fun): Update to new interfaces
for managing mutation.
* debug.c (debug): Update to new interfaces for managing mutation.
Avoid loc variable name.
* eval.c (env_fbind, env_fbind): Update to new interfaces
for managing mutation.
(lookup_var_l, dwim_loc): Return loc type and update to new interfaces.
(apply_frob_args, op_modplace, op_dohash, transform_op, mapcarv,
mappendv, repeat_infinite_func, repeat_times_func): Update to new
interfaces for managing mutation.
* eval.h (lookup_var_l): Declaration updated.
* filter.c (trie_add, trie_compress, trie_compress_intrinsic,
* build_filter, built_filter_from_list, filter_init): Update to new
* interfaces.
* gc.c (gc_set): Rewritten to use loc type which provides the exact
generation. We do not need the in_malloc_range hack any more, since
we have the backpointer to the object.
(gc_push): Take loc rather than raw pointer.
* gc.h (gc_set, gc_push): Declarations updated.
* hash.c (struct hash): The acons* functions use loc instead
of val * now.
(hash_equal_op, copy_hash, gethash_c, inhash, gethash_n, pushhash,
Change to how locations are passed around, for the sake of generational
GC. The issue being solved here is the accuracy of the gc_set function.
The existing impelmentation is too conservative. It has no generation
information about the memory location being stored, and so it assumes
the worst: that it is a location in the middle of a gen 1 object.
This is sub-optimal, creating unacceptable pressure against the
checkobj array and, worse, as a consequence causing unreachable gen 0
objects to be tenured into gen 1.
To solve this problem, we replace "val *" pointers with a structure
of type "loc" which keeps track of the object too, which lets us
discover the generation.
I tried another approach: using just a pointer with a bitfield
indicating the generation. This turned out to have a serious issue:
such a bitfield goes stale when the object is moved to a different
generation. The object holding the memory location is in gen 1, but the
annotated pointer still indicates gen 0. The gc_set function then
makes the wrong decision, and premature reclamation takes place.
* combi.c (perm_init_common, comb_gen_fun_common,
rcomb_gen_fun_common, rcomb_list_gen_fun): Update to new interfaces
for managing mutation.
* debug.c (debug): Update to new interfaces for managing mutation.
Avoid loc variable name.
* eval.c (env_fbind, env_fbind): Update to new interfaces
for managing mutation.
(lookup_var_l, dwim_loc): Return loc type and update to new interfaces.
(apply_frob_args, op_modplace, op_dohash, transform_op, mapcarv,
mappendv, repeat_infinite_func, repeat_times_func): Update to new
interfaces for managing mutation.
* eval.h (lookup_var_l): Declaration updated.
* filter.c (trie_add, trie_compress, trie_compress_intrinsic,
* build_filter, built_filter_from_list, filter_init): Update to new
* interfaces.
* gc.c (gc_set): Rewritten to use loc type which provides the exact
generation. We do not need the in_malloc_range hack any more, since
we have the backpointer to the object.
(gc_push): Take loc rather than raw pointer.
* gc.h (gc_set, gc_push): Declarations updated.
* hash.c (struct hash): The acons* functions use loc instead
of val * now.
(hash_equal_op, copy_hash, gethash_c, inhash, gethash_n, pushhash,
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(op_prof, me_pprof): New static functions.
(eval_init): Intern prof symbol, store in prof_s.
Captured interned + symbol in plus_s. Register prof operator and pprof
macro.
* gc.c (gc_bytes): New global variable.
(more): Use nse function chk_malloc_gc_more instead of chk_malloc.
(make_obj): Increment gc_bytes.
* lib.c (malloc_bytes): New global variable.
(chk_malloc, chk_realloc): Increment malloc_bytes.
(chk_calloc): Bugfix: incorrect size in recursion into oom_realloc.
Incorrect calculation of malloc_high_bound. Increment malloc_bytes.
(chk_malloc_gc_more): New function.
* lib.h (alloc_bytes_t): New typedef.
(malloc_bytes, gc_bytes): Declared.
(chk_malloc_gc_more): Declared.
* stream.c (format_s): New symbol global.
(stream_init): format_s inited.
format_s used to register formatv function.
* stream.h (format_s): Declared.
* txr.1: Documented prof and pprof.
* genvim.txr: Recognize reg_fun calls with intern
followed by a preceding assignment or other syntax.
* txr.vim: Updated.
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* eval.c (env_k): Duplicate global variable definition removed.
* lib.c (vector, vec_set_length): Fixed signed/unsigned comparison
warnings.
* stream.h (stdin_s, stdout_s, stddebug_s, stderr_s, stdnull_s):
Declarations were definitions due to missing extern.
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re-binding. C code now has to go through the dynamic environment lookup
to access things like *random-state*, or *stdout*. As part of this,
I'm moving some intrinsic variable and function initializations out of
eval.c and into their respective modules. Macros are are used to make
global variables look like ordinary C variables. This is very similar
to the errno trick in POSIX threads implementations.
* eval.c (looup_var, lookup_var_l): Restructured to eliminate silly
goto, the cobjp handling is gone.
(reg_fun, reg_var): Internal function becomes external.
reg_var registers a simple cons cell binding now, without any
C pointer tricks to real C global variables.
(c_var_mark): Static function removed.
(c_var_ops): Static struct removed.
(eval_init): Numerous initializations for streams, syslog, rand,
signals and others moved to their respective modules.
The new symbol variables user_package_s, keyword_package_s
and system_package_s are interned here, and the variables are
created in a special way.
* eval.h (reg_var, reg_fun): Declared.
* gc.c (prot1): Added assert that the loc pointer isn't null.
This happened, and blew up during garbage collection.
* lib.c (system_package, keyword_package, user_package): Variables
removed these become macros.
(system_package_var, keyword_package_var, user_package_var): New
global variables.
(system_package_s, keyword_package_s, user_package_s): New
symbol globals.
(get_user_package, get_system_package, get_keyword_package): New
functions.
(obj_init): Protect new variables. Initialization order of modules
tweaked: the modules sig_init, stream_init, and rand_init are moved
after eval_init because they register variables.
* lib.h (keyword_package, system_pckage, user_package): Variables
turned into macros.
(system_package_var, keyword_package_var, user_package_var): Declared.
(system_package_s, keyword_package_s, user_package_s): Declared.
(get_user_package, get_system_package, get_keyword_package): Declared.
* rand.c (struct random_state): Renamed to struct rand_state to
avoid clash with new random_state macro.
(random_state): Global variable removed.
(random_state_s): New symbol global.
(make_state, rand32, make_random_state, random_fixnum, random):
Follow rename of struct random_state.
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* stream.c (symlink_wrap, link_wrap, readlink_wrap): New functions.
* stream.h (symlink_wrap, link_wrap, readlink_wrap): Declared.
* txr.1: Documented.
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Register mkdir_wrap, chdir_wrap, getcwd_wrap, makedev_wrap, minor_wrap,
major_wrap and mknod_wrap.
* stream.c (mkdir_wrap, chdir_wrap, getcwd_wrap, makedev_wrap,
minor_wrap, major_wrap, mknod_wrap): New functions.
(stream_init): Initialize forgotten variable s-ifsock.
* stream.h (s_ifsock): Declared.
(mkdir_wrap, chdir_wrap, getcwd_wrap, makedev_wrap,
minor_wrap, major_wrap, mknod_wrap): Declared.
* txr.1: Forgotten documentation for remove-path and rename-path
added. Forgotten mention of s-ifsock. Documented new Unix functions.
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* stream.h (remove_path, rename_path): Declared.
* utf8.c (w_remove, w_rename): New functions.
* utf8.h (w_remove, w_rename): Declared.
* eval.c (eval_init): Registered remove_path and rename_path
as intrinsics.
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* stream.c (null_ops, stdio_ops, tail_ops, pipe_ops,
string_in_ops, byte_in_ops, string_out_ops, strlist_out_ops,
dir_ops, cat_stream_ops): Structure definition updated
with new initializers for two new virtuals.
(stdio_handle): New member, unget_c.
(snarf_line, stdio_get_char): Handle pushed-back character in
h->unget_c.
(stdio_unget_char, stdio_unget_byte, string_in_unget_char,
byte_in_unget_byte): New static functions.
(make_stdio_stream_common): Initialize unget_c member.
(unget_char, unget_byte): New functions.
* stream.h (struct strm_ops): New virtuals: unget_char and unget_byte.
(unget_char, unget_byte): New functions declared.
* syslog.c (syslog_strm_ops): Two new initializers.
* eval.c (eval_init): Registered unget_char and unget_byte as
intrinsics.
* txr.1: Documented.
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New catenated streams make the Yacc hack possible.
* eval.c (eval_init): Register lisp_parse as intrinsic.
* parser.h (lisp_parse): Declared.
* parser.l: New lexical hack to produce SECRET_ESCAPE_E token.
(regex_parse): Move declaration before statements.
(lisp_parse): New function.
* parser.y (SECRET_ESCAPE_E): New token type.
(spec): New production rule for single expression.
* stream.c (cat_stream_print, cat_get_line, cat_get_char,
cat_get_byte, cat_get_prop): New static functions.
(cat_stream_ops): New static function.
(make_catenated_stream): New function.
* stream.h (make_catenated_stream): Declared.
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their name: some kind of string.
* stream.c (name_k): New variable.
(null_get_prop): New static function.
(null_ops): Wire null_get_prop into ops structure.
(stdio_get_prop): Report h->descr as name.
(string_in_get_prop): New function.
(string_in_ops): Wire string_in_get_prop into ops structure.
(stream_init): Initialize name_k.
* stream.h (name_k): Declared.
* syslog.c (syslog_get_prop): Report "syslog" as
stream name.
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Fixing some errors in copyright comments.
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stream_get_prop and stream_set_prop as intrinsics.
* stream.c (stream_get_prop): New function.
* stream.h (stream_get_prop): Declared.
* syslog.c (syslog_get_prop): Bugfix: check for prio_k not real_time_k.
* txr.1: Updated.
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* Makefile: Use -iquote to restrict our #include search paths from
being processed for #include <...>. Add syslog.o to OBJS-y if
have_syslog is y.
* configure (have_syslog): New variable, set by detecting syslog API.
* eval.c (eval_init): logand and logior registrations changed to
go to variadic versions. New syslog variables and functions registered.
* lib.c (logandv, logiorv): New functions.
* lib.h (logandv, logiorv): Declared.
* txr.c (main): Call syslog_init.
* syslog.c: New file.
* syslog.h: New file.
* txr.1: Updated.
* txr.vim: Regenerated.
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intrinsic function and std_null as new variable.
* parser.h (yylex_destroy): Existing function declared.
* parser.l (regex_parse): New function.
New lexical syntax added which returns SECRET_ESCAPE_R.
* parser.y (SECRET_ESCAPE_R): New token.
(spec): Added syntactic variant which lets us
smuggle a regex into the parser easily.
* stream.c:x (std_null): New global variable.
(null_stream_print): New static function.
(null_ops): New static structure.
(make_null_stream): New function.
(stream_init): Protect and initialize std_null.
* stream.h (std_null, make_null_stream): Declared.
* txr.1: New features documented: regex-parse, *stdnull*.
* txr.c (txr_main): Call yylex_destroy after parsing the program now
that I know about this function; this can free up some memory.
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The problem is that accurate lazy lists are not suitable for
real time use, where we want the TXR program to respond immediately
to matching some datum.
I'm implementing a simple, naive variant of lazy stream lists
which simply populates the lazy cons by reading from the stream when
the car or cdr fields are accessed. This type of stream can never
be nil (empty list) even if the file is empty; in that case
it will be (nil) and in general, it will have a spurious nil
item at the end instead of ending in a string.
(An adjustment was made in match.c to detect this; more
will be needed.)
I'm adding attributes to streams so streams can now have a
"real-time" attribute. When a lazy string list is constructed over
a real-time stream, the simple implementation is used.
File streams are automatically real-time if (on Unix) they are tied
to tty streams. Tail streams are also real-time.
More work is needed to achieve the goal of this change,
but this is a big step in the right direction.
* configure: Detect isatty function.
* lib.c (simple_lazy_stream_func): New static function.
(lazy_stream_cons): Use simple implementation for real-time streams.
* match.c (match_files): Do not call match_line_completely
with a data line that is nil (as a result of simple lazy list
over a real-time stream). A nil item in a lazy list of strings
is treated as eof.
* stream.c (real_time_k): New symbol variable.
(struct strm_ops): New members: get_prop, set_prop.
(struct stdio_handle): New member: is_real_time.
(stdio_get_prop, stdio_set_prop): New static function.
(stdio_ops, tail_ops, pipe_ops): stdio_get_prop and
stdio_set_prop funtions wired in.
(make_stdio_stream_common): Attribute streams as real-time
if they are tty devices.
(make_tail_stream): Tail streams are real-time attributed.
(stream_set_prop, real_time_stream_p): New functions.
(stream_init): Initialize real_time_k.
* stream.h (real_time_k): Declared.
(real_time_stream_p, stream_set_prop): Likewise.
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* eval.c (eval_init): Register new open_tail function as intrinsic.
* match.c (complex_snarf, complex_stream): Update calls to
make_stdio_stream and make_pipe_stream to take fewer arguments.
(match_files): Support a stream object as a data source specification
in place of a string.
* parser.l (parse_reset): Update call to make_stdio_stream to take
fewer arguments.
* stream.c: Inclusion of <unistd.h> made properly conditional.
(struct stdio_handle): pid member defined as pid_t only if we have fork
functionality, otherwise defined as int.
(tail_get_line, tail_get_char, tail_get_byte): New static functions.
(tail_ops): New static structure.
(make_stdio_stream_common): New static structure.
(make_stdio_stream, make_pipe_stream): These functions lose the input
and output parameters, which ended up never used. Reimplemented
in terms of new common function.
(make_tail_stream): New function.
(make_pipevp_stream): Reimplemented in terms of new common function.
(open_file, open_command): Simplified by removal of useless local
variables and their computation, which used to be extra arguments to
make_stdio_stream and make_pipe_stream.
(open_tail): New function.
(stream_init): Calls to make_stdio_stream updated.
* stream.h (make_stdio_stream, make_pipe_stream): Declarations updated.
(make_tail_stream, open_tail): Declared.
* txr.c (txr_main): Calls to make_stdio_stream updated.
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Bugfix in stdio_flush: check FILE * handle for null.
Minor cleanups.
* eval.c (eval_init): Register seek_stream as intrinsic.
* stream.c (from_start_k, from_current_k, from_end_k): New symbol
variables.
(strm_whence): New enum.
(strm_ops): New member, seek.
(stdio_maybe_write_error): Renamed to stdio_maybe_error; takes
new string argument to describe action.
(stdio_put_string, stdio_put_char, stdio_put_byte): Updated call to
stdio_maybe_error.
(stdio_flush): Updated call to stdio_maybe_error. Check
handle for null.
(stdio_seek): New static function.
(stdio_ops): Added stdio_seek.
(pipe_ops, string_in_ops, byte_in_ops, string_out_ops,
strlist_out_ops, dir_ops): Added explicit zero entries and comments for
unimplemented functions.
(seek_stream): New function.
(stream_init): New keyword symbols interned.
* stream.h (from_start_k, from_current_k, from_end_k): New
variables declared.
(dev_k, ino_k, mode_k, nlink_k, uid_k, gid_k, rdev_k, size_k,
blksize_k, blocks_k, atime_k, mtime_k, ctime_k, s_ifmt, s_iflnk,
s_ifreg, s_ifblk, s_ifdir, s_ifchr, s_ififo, s_isuid, s_isgid, s_isvtx,
s_irwxu, s_irusr, s_iwusr, s_ixusr, s_irwxg, s_irgrp,
s_iwgrp): Existing extern variables declared.
(seek_stream): New function declared.
* txr.1: Documented seek-stream.
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* eval.c (eval_init): Registered logtest.
Registered s-ifmt, s-iflnk, s-ifreg, s-ifblk, s-ifdir,
s-ifchr, s-ififo, s-isuid, s-isgid, s-isvtx, s-irwxu,
s-irusr, s-iwusr, s-ixusr, s-irwxg, s-irgrp, s-iwgrp,
s-ixgrp, s-irwxo, s-iroth, s-iwoth, s-ixoth variables.
* lib.h (logtest): Declared.
* stream.c (s_ifmt, s_ifsock, s_iflnk, s_ifreg, s_ifblk,
s_ifdir, s_ifchr, s_ififo, s_isuid, s_isgid, s_isvtx, s_irwxu, s_irusr,
s_iwusr, s_ixusr, s_irwxg, s_irgrp, s_iwgrp, s_ixgrp, s_irwxo, s_iroth,
s_iwoth, s_ixoth): New global variables.
* stream.h (s_ifmt, s_ifsock, s_iflnk, s_ifreg, s_ifblk,
s_ifdir, s_ifchr, s_ififo, s_isuid, s_isgid, s_isvtx, s_irwxu, s_irusr,
s_iwusr, s_ixusr, s_irwxg, s_irgrp, s_iwgrp, s_ixgrp, s_irwxo, s_iroth,
s_iwoth, s_ixoth): Declared.
* txr.1: Documented logtest and s-* variables for stat,
as well as open-file and open-directory.
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* eval.c: New intrinsic functions "stat" and "prop".
* stream.c: Include <sys/stat.h> if we have it.
(w_stat, statf): New functions.
(val dev_k, ino_k, mode_k, nlink_k, uid_k,
val gid_k, rdev_k, size_k, blksize_k, blocks_k;
val atime_k, mtime_k, ctime_k): New sybol variables.
(stream_init): Intern new keywords symbols.
* stream.h (statf): Declared.
* txr.1: prop documented. Stub for stat created.
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intrinsics. open-pipe is now deprecated but stays for backward
compatibility as a synonym for open-command.
* stream.c (open_pipe): Renamed to open_command.
(open_pipevp): Renamed to open_process.
* stream.h (open_pipe, open_pipevp): Declarations updated.
* txr.1: Documentation headings updated.
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that popen accepts a complete command. We need something which
accepts a program name, and a list of arguments, so that
we don't have to assemble together a correctly quoted string.
popen needs an alternative interface resembling execvp.
* eval.c (eval_init): New intrinsic registered, open-pipe-args.
* stream.c (struct stdio_handle): New member, pid.
(stdio_stream_print): Print the pid, if it is nonzero.
(pipevp_close): New close function.
(pipe_close): If h->pid is nonzero, it's a new-style pipe, which
must be closed with pipev_close.
(make_stdio_stream, make_pipe_stream): Initialize new stdio_handle
member to zero.
(make_pipevp_stream): New static function.
(open_pipevp): New function.
* stream.h (open_pipevp): Declared.
* txr.1: open-pipe-args added to stub section heading.
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that output has taken place and suppress the printing of bindings.
* debug.c (debug): std_output replaced with std_debug.
* eval.c (eval_init): Registered new *stddebug* variable.
* stream.c (std_debug): New variable.
(stdio_put_string): Check that stream is other than
std_debug, to determine that output has taken place.
* stream.h (std_debug): Declared.
* txr.1: Added *stddebug* to documentation stub heading.
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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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* stream.c (struct strm_ops): New member, put_byte.
(stdio_put_byte): New function.
(stdio_ops, pipe_ops, string_in_ops, byte_in_ops,
string_out_ops, strlist_out_ops, dir_ops): Updated.
(put_byte): New function.
* stream.h (put_byte): Declared.
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* debug.c (help, show_bindings): put_string arguments reversed.
* eval.c (bind_args): Support colon notation in interpreted
function lambda lists for optional arguments. Improved error checking.
(apply): Allow optional arguments to be left out.
(dwim_loc): Reversed arguments to replace_str, replace_vec,
replace_list.
(eval_init): Numerous intrinsics now have arguments that are optional.
New function rand introduced which reverses arguments relative to
random. New intrinsic function hash introduced for alternative
construction of hashes.
* gc.c (sweep): Reversed arguments to put_char.
* hash.c (weak_keys_k, weak_vals_k, equal_based_k): New keyword
symbol variables.
(hashv): New function.
(hash_init): Intern new symbols.
* hash.h (weak_keys_k, weak_vals_k, equal_based_k, hashv): Declared.
* lib.c (colon_k): New keyword symbol variable.
(replace_list, replace_str, replace_vec): Arguments rearranged.
(tree_find): testfun becomes optional argument.
(int_str): base becomes optional argument.
(func_f0, func_f1, func_f2, func_f3, func_f4, func_n0,
func_n1, func_n2, func_n3, func_n4, func_f0v, func_f1v,
func_f2v, func_f3v, func_f4v, func_n0v, func_n1v,
func_n2v, func_n3v, func_n4v, func_interp): Initialize optargs to zero.
(func_n0o, func_n1o, func_n2o, func_n3o, func_n4o): New functions.
(cobj_print_op): Reversed arguments to put_string.
(find): testfun and keyfun become optional arguments.
(replace): Parameters rearranged and arguments rearranged in calls to
replace_list, replace_str and replace_vec.
(obj_init): colon_k initialized.
(obj_print, obj_pprint): Arguments reversed, and stream defaults
to std_output. Arguments reversed in calls to put_char and put_string.
(dump): Arguments reversed in call to put_char.
* lib.h (struct func): sizes of minparam, fixparam bitfields
adjusted. New bitfield optargs. New unnamed bitfield added so
the previous ones add up to 16 bits.
(colon_k): Declared.
(func_n0o, func_n1o, func_n2o, func_n3o, func_n4o): Declared.
(replace_list, replace_str, replace_vec, replace): Declarations updated.
* match.c (debuglf, dump_shell_string, dump_byte_string, dump_var,
do_output_line, extract): Reversed arguments to put_char and
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or not. This is now done right inside the standard output stream.
* match.c (output_produced): Variable removed.
(complex_open): Assignment to output_produced removed.
* stream.c (output_produced): New global variable.
(stdio_put_string, stdio_put_char): Set output_produced
to t if the target of the output is stdout.
* stream.h (output_produced): Declared.
* txr.h (output_produced): Declaration removed.
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* match.c (v_do): Store match context.
(match_fun): New function.
* match.h (match_fun): Declared.
* stream.c (streamp): New function.
* stream.h (streamp): Declared.
* txr.1: Stub section for match-fun.
* txr.vim: Highlight match-fun.
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