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* doc: improvements in dwim and call documentationKaz Kylheku2024-03-071-4/+18
| | | | | | | | | | | * txr.1: Under call function, document that callable objects need not be functions; the dwim operator description has the details. Fix a formatting problem in the dwim operator syntax synopsis. Under dwim, clarify in more detail that the behavior for various objects are a consequence of their function calling semantics, rather than inherent in the dwim operator.
* New function: rangeref.Kaz Kylheku2024-03-075-5/+173
| | | | | | | | | | | | | | | | | | | | | Because ranges can be iterated like sequences, and are identified as vector-like, they have to support indexing. However, ranges already have semantics as a function: with a sequence argument, they slice it. Let's put the semantics into a function called rangeref, so it can be coherently documented. * eval.c (eval_init): Register rangeref intrinsic. * lib.c (generic_funcall): Range as a function works in terms of rangeref. (ref): Handle RNG case via rangeref. (rangeref): New function. * lib.h (rangeref): Declared. * tests/012/seq.tl: New tests.
* list-vec: replace int type.Kaz Kylheku2024-03-021-2/+2
| | | | | * lib.c (list_vec): use ucnum rather than int for the index and length variables.
* unique: covert to seq_build.Kaz Kylheku2024-03-021-3/+4
| | | | | | * lib.c (unique): Build output using seq_build_t, rather than consing up a list which is then converted to the desired sequence type.
* mapcar: avoid alloca proportional to number of args.Kaz Kylheku2024-03-014-2/+33
| | | | | | | | | | | | | | | * eval.c (MAP_ALLOCA_LIMIT): New preprocessor symbol. (map_common): If the number of args is greater than MAP_ALLOCA_LIMIT, then allocate the array of seq_iter_t structures from chk_malloc rather than alloca. In case an exception might be thrown during the execution of this function, we bind that memory to a buf object. If we return normally, we call the new function buf_free to release it. Otherwise we rely on the garbage collector. * buf.[ch] (buf_free): New function. * tests/012/seq.tl: Test case which hits this behavior.
* zip: make more generic.Kaz Kylheku2024-03-014-48/+120
| | | | | | | | | | | | | | | | * lib.c (do_pa_12_1_v, pa_12_1_v): Static functions removed. (transposev, transpose): Functions removed. * lib.c (transposev, transpose): Declarations removed. * eval.c (join_f): New global variable. (zip_fun, zipv, transpose): New static functions. (eval_init): gc-protect join_f, and initialize it. Registration of zip intrinsic goes to zipv rather than transposev. sys:fmt-join and join registered with help of global join_f rather than local. * tests/012/seq.tl: New zip test cases.
* doc: replace "index-list" with "index-seq".Kaz Kylheku2024-02-291-57/+60
| | | | | | | | * txr.1: All arguments that give a list of indices into a sequence are called index-seq, because they are not required to be lists. Only the COMPATIBILITY section refers to index-list arguments, mentioning that those arguments are now called index-seq.
* partition, split, split*: iter used for indicesKaz Kylheku2024-02-292-37/+43
| | | | | | | | | | | | | | | | | | * lib.c (partition_func, split_func, split_star_func): Indices passed through lazy cons are now iterator, rather than a sequence accessed via car and cdr, which is inefficient for nonlists. (partition-split-common): Use iter-begin to convert indices to iterator, which becomes the cdr field of the lazy cons. * txr.1: Update documentation for these functions to clarify that the second argument is a sequence. The inaccurate text claiming that "if the second argument is an atom other than a function" is rewritten. This doesn't describe the behavior that is implemented, where the test applied is seqp, not atom. The indices can be a vector of integers, which is an atom.
* partition-if: use seq_build for accumulating partitions.Kaz Kylheku2024-02-281-4/+6
| | | | | * lib.c (partition_if_func): Instead of list_collect_decl and make_like, use seq_build.
* partition-by: replace sequence traversal with iter.Kaz Kylheku2024-02-281-10/+13
| | | | | | | | * lib.c (partition_by_func): The seq object is now an iter object: use iter_more, iter_item and iter_step rather than non-null test, car and cdr. (partition_by): Obtain iterator for sequence using iter_begin, and use that in its place.
* partition-by: replace tuple accumulation with seq_build.Kaz Kylheku2024-02-281-6/+7
| | | | | * lib.c (partition_by_func): Use seq_build instead of list_collect_decl and make_like.
* seq_build: seq_pend must be nondestructive for lists.Kaz Kylheku2024-02-282-3/+21
| | | | | | | | | | | | | | | | | | | | Let's have both a seq_pend and seq_nconc, where seq_nconc can reuse the pieces of list passed to it. * lib.h (struct seq_build_ops): New member, nconc. (seq_build_ops_init): Add nconc parameter and initializer. (seq_nconc): Function declared. * lib.c (seq_build_list_pend): Switch to list_collect_append, otherwise mappend behaves destructively. (seq_build_list_nconc): New function. (sb_vec_ops, sb_str_ops, sb_buf_ops, sb_struct_ops, sb_carray_ops): Use seq_build_generic_pend for nconc operation. (sb_list_ops): Use new seq_build_list_nconc for nconc operation. (sb_finished_ops): Use null pointer for nconc operation. (seq_nconc): New function.
* seq_build: convert list buiding to list_collect.Kaz Kylheku2024-02-282-68/+10
| | | | | | | | | | | | | | | | | | | | | | | | | We want to use the list_collect functions for consistency. For instance, these functions allow an atom to be added to an improper list if the terminating atom is a sequence. (append '(1 . "abc") "d") yields (1 . "abcd"). * lib.h (struct seq_build): New member, tail. * lib.c (seq_build_list_add): Use list_collect. (seq_build_list_pend): Use list_collect_nconc. (seq_build_list_finish): Nothing to do here, except call seq_build_convert_to_finished since bu->obj is the head of the list at all times now. (seq_build_improper_add, seq_build_improper_pend): Functions removed. (sb_improper_ops): Structure removed. (seq_build_convert_to_improper): Function removed. (seq_build_convert_to_list): Different strategy needed here now. The list just goes into bu->obj, and we have to set up the tail to either point to the last cons cell's cdr, or else to bu->obj if the list is empty. (seq_build_init): Initialize bu->tail in the three cases that set up list collection.
* seq_build: whitespace.Kaz Kylheku2024-02-281-1/+1
| | | | * lib.c (sb_vec_ops): fix indentation.
* seq_build: remove unnecessary convert calls.Kaz Kylheku2024-02-281-2/+0
| | | | | | * lib.c (seq_build_struct_finish, seq_build_carray_finish): Do not call seq_build_convert_to_finished, since seq_build_list_finish has already done that.
* seq_build: remove one finish function.Kaz Kylheku2024-02-281-6/+1
| | | | | | | | * lib.c (seq_build_improper_finish): Function removed. (sb_improper_ops): Replace seq_build_improper_finish with null pointer. The seq_finish function checks for null and avoids calling, so we don't need the noop implementation.
* seq_build: safeguard against adding to finished object.Kaz Kylheku2024-02-281-0/+14
| | | | | | | | * lib.c (seq_build_convert_to_finished): New function. (seq_build_list_finish): call seq_build_convert_to_finished. (sb_finished_ops): New static struct. All operations except mark are null pointers so this will crash if used.
* mapcar, mappend: switch to seq_build.Kaz Kylheku2024-02-272-10/+25
| | | | | | | | | | | | | | * lib.c (mapcar): Implement with seq_iter and seq_build, rather than relying on mapcar_listout and make_like. (mappend): Replace list_collect_decl and make_like with seq_build. * eval.c (map_common): Replace list_collect_decl and make_like with seq_build. The collect_fn is now a pointer to either seq_add or seq_pend rather than list_collect or list_collect_append. (mapcarv, mappendv): Pass seq_add and seq_pend to map_common, rather than list_collect and list_collect_append.
* seq_build: support improper lists.Kaz Kylheku2024-02-271-1/+53
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | To be useful for some operations, the seq_build framework must handle the pend operation on lists specially. The appended piece must only be treated as a sequence if it is a cons. Moreover, if it is an atom, or of it is an improper list, then the list terminates. Subsequent add and pend operations must fail. The atom must appear as the terminator. We meet these objectives by switching the object's operations, sb_list_ops, to a new set of operations, sb_improper_ops. * lib.c (seq_build_list_pend): New static function. This individually adds all items from the input list, until it hits a terminating atom. If the atom isn't nil, it converts the seq_build_t object to improper operations. (seq_build_improper_add, seq_build_improper_pend): New static functions. These throw an error: adding anything to an improper list is impossible. (seq_build_improper_finish): New function, which does nothing: the improper list is finished already. (sb_list_ops): Use the seq_build_list_pend operation rather than the generic one. (sb_improper_ops): New static structure. (seq_build_convert_to_improper): New static function. Finishes the list, giving it the specified terminating atom, and then switches to sb_improper_ops so that adding is no longer possible.
* tuples: convert tuple generation to seq_build.Kaz Kylheku2024-02-272-5/+8
| | | | | | | | | | * lib.c (tuples_func): Replace list accumulation with make_like with seq_build. * tests/012/seq.tl: Fix one test case here which no longer errors out. It produces a tuple which is not a string, due to the inclusion of a non-character object.
* seq_build: fix: incompatible items must create list.Kaz Kylheku2024-02-271-12/+30
| | | | | | | | | | | | | | | | | | | | | In the make_like function, the list is converted to string or buffer if the first element of the list is a character, or integer. We need similar logic in seq_build. We can make it better. When any item is added which is incompatible, we can convert what we have so far to a list, change the seq_build type to list, and keep going. * lib.c (seq_build_convert_to_list): New static function. (seq_build_str_add, seq_build_buf_add): If the item is incompatible, convert the string or buffer to a list and pass to seq_build_convert_to_list. Then call bu->ops->add to add the item, now as a list. (seq_build_buf_pend): Function removed. (sb_buf_ops): Use the seq_build_generic_pend function for the pend operation. This is because we have to check each item one by one; we cannot use replace_buf.
* seq_build: struct/carray bugfix.Kaz Kylheku2024-02-271-3/+4
| | | | | | | * lib.c (seq_build_struct_finish, seq_build_carray_finish): These functions are still wrongly assuming that the list is finished by nreverse. We intead call seq_build_list_finish for that, which puts the list back into bu->obj.
* seq_build: put self name into structure.Kaz Kylheku2024-02-272-18/+20
| | | | | | | | | | | | | | | * lib.h (struct seq_build): New member, self. (struct seq_build_ops): Remove self parameter from pend function. (seq_build_init, seq_pend): Declarations updated. * lib.c (seq_build_generic_pend): Drop self parameter, take the value from structure. (seq_build_buf_pend): Drop self parameter. (seq_build_init): New self parameter. Pass recursively. (seq_pend): Self parameter dropped. (rem_impl, rem_if_impl, keep_keys_if, separate, separate_keys): Pass self to seq_build_init.
* seq_build: build lists in order using tail pointer.Kaz Kylheku2024-02-271-2/+19
| | | | | | | | | | * lib.c (seq_build_list_add, seq_build_list_finish): We use the trick that bu->obj (if not nil) points to the tail cons cell of the list being built, and the cdr of that tail always points back to the head. To finish the list, all we do is nil out that head pointer, so the list is properly terminated, and then plan the head as bu->obj.
* seq_build: remove unused struct member.Kaz Kylheku2024-02-271-1/+0
| | | | * lib.h (struct seq_build): Remove inf member.
* separate-keys: rework using seq_buildKaz Kylheku2024-02-271-62/+13
| | | | * lib.c (separate_keys): Rewrite using seq_info and seq_build.
* separate: rework using seq_build.Kaz Kylheku2024-02-271-75/+13
| | | | | * lib.c (separate): switch statement with type-specific coding replaced with generic sequence iteration and building.
* seq_build: allow initialization from iterator.Kaz Kylheku2024-02-271-0/+6
| | | | | | * lib.c (seq_build_init): Replicate a feature of make_like: if the reference object is an iterator, then we recurse: we initialize according to the object it is iterating.
* keep-keys-if: rework with generic sequence processing.Kaz Kylheku2024-02-261-56/+12
| | | | | * lib.c (keep_keys_if): Replace with generic sequence iteration and building.
* New sequence building framework.Kaz Kylheku2024-02-262-123/+231
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Just as the "seq_iter" iterators help to condense the code for iterating any kind of sequence, "seq_builder" objects solve the problem of producing a sequence of the same kind as an input sequence. Until now, two approaches have been taken for this. One was to have separately coded cases: code iterating over a string building up a string, and so on. The other has been to produce a list, which is then coerced to the right sequence type using make_like. The approach introduced here is similar to using make_like, but without wastefully consing up a temporary list. The remove-if, remqual, remql, remq and keep-if functions are retargetted to this new abstraction. * lib.h (struct seq_build, seq_build_t): New struct type. (struct seq_build_ops): New struct type. (seq_build_ops_init): New macro. (seq_build_init, seq_add, seq_pend, seq_finish): Functions declared. * lib.c (seq_build_generic_pend, seq_build_obj_mark, seq_build_struct_mark, seq_build_carray_mark, seq_build_vec_add, seq_build_str_add, seq_build_buf_add, seq_build_buf_pend, seq_build_buf_finish, seq_build_list_add, seq_build_list_finish, seq_build_struct_finish, seq_build_carray_finish): New static functions. (sb_vec_ops, sb_str_ops, sb_buf_ops, sb_struct_ops, sb_carray_ops, sb_list_ops): New static structs. (seq_build_init, seq_add, seq_pend, seq_finish): New functions. (rem_impl, rem_if_impl): Reworked in terms of seq_iter and seq_build, becoming much shorter, and handling all iterable objects.
* keep-if: don't report as remove-if in errors.Kaz Kylheku2024-02-261-3/+7
| | | | | | | * lib.c (rem_if_impl): New static function, based on renaming remove_if, and adding a self parameter. (remove_if): Now wrapper around rem_if_impl. (keep_if): Retarget to rem_if_impl, passing "keep-if" name.
* doc: add rationale about let vs let*.Kaz Kylheku2024-02-221-0/+22
| | | | | | * txr.1: Add Rationale: section to let and let* clarifying that the decision to make let parallel is for compatibility with other dialects like ANSI CL and Elisp.
* quips: new Lisp entry.Kaz Kylheku2024-02-181-0/+1
| | | | * quips.tl (%quips%): New dad humor.
* doc: fixes under macroexpand-params.Kaz Kylheku2024-02-151-17/+17
| | | | | * txr.1: Fix typo: for -> form; add missing leading indentation in example.
* compiler: use cons-count.Kaz Kylheku2024-02-091-1/+1
| | | | | | * stdlib/compiler.tl (simplify-variadic-lambda): Use cons-count to find occurrences of the rest variable rather than flatten and count.
* New function: cons-count.Kaz Kylheku2024-02-095-0/+71
| | | | | | | | | | | | | * eval.c (eval_init): Register cons-count intrinsic. * lib.c (cons_count_rec): New static function. (cons_count): New function. * lib.h (cons_count): Declared. * tests/012/cons.tl: New tests. * txr.1: Documented.
* New function: cons-find.Kaz Kylheku2024-02-095-22/+83
| | | | | | | | | | | | | | | | | * eval.c (cons_find): Static function removed; a new one is implemented in lib.c. (eval_init): Register cons-find intrinsic. * lib.c (cons_find_rec): New static function. (cons_find): New function. * lib.h (cons_find): Declared. * tests/012/cons.tl: New file. * txr.1: Documented cons-find together with tree-find. Document that tree-find's test-fun argument is optional, defaulting to equal.
* compiler: take advantage of fixed @(end) match.Kaz Kylheku2024-02-081-2/+1
| | | | | | * stdlib/compiler.tl (simplify-variadic-lambda): Remove work-around where two patterns are combined with or, expressing it the way it wants to be.
* match: remove bad restriction from @(sme) and @(end).Kaz Kylheku2024-02-083-14/+17
| | | | | | | | | | | | | | | | | | | | | | | | The end pattern in @(sme) and @(end) does not have to be a list pattern, dotted or otherwise. It should support any pattern whatsoever for a single object, which should match the terminating atom. The documentation says that, though not very clearly; it is reworded also. * stdlib/match.tl (check-end): Remove this function, since the end pattern can be any pattern. (pat-len): Bugfix: we are using the meq function incorrectly. The object being compared against several alternatives must be the leftmost argument of meq. This bug prevents a pattern like @(evenp @x) to be correctly considered of length zero. (sme, end): Remove calls to check-end, and just refer to original end variable. * tests/011/patmatch.tl: New tests. * txr.1: clarify that the end pattern may be any pattern, which can match just the terminating atom or a possibly dotted suffix.
* compiler: inlined chain: simplify variadic lambdas.Kaz Kylheku2024-02-081-2/+15
| | | | | | | | | | | | | | | The opip syntax often generates lambdas that have a trailing parameter and use [sys:apply ...]. This is wasteful in the second and subsequent argument positions of a chain, because we know that only a single value is coming from the previous function. We can pattern match these lambdas and convert the trailing argument to a single fixed parameter. * stdlib/compiler.tl (simplify-variadic-lambda): New function. (inline-chain-rec): Try to simplify every function through simplify-variadic-lambda. The leftmost function is treated in inline-chain, so these are all second and subsequent functions.
* compiler: implement inlining for chain expressions.Kaz Kylheku2024-02-072-2/+40
| | | | | | | | | | | | | | | | | | | | The opip syntax and its variants transforms into chain expressions. Currently, we emit actual chain function calls, and so all the chain arguments that are lambda expressions have become closures. In this commit, an inlining optimization is introduced which turns some chain function calls into chained expressions. The lambdas are then immediately called, and so succumb to the lambda-eliminating optimization. * stdlib/compiler.tl (compiler comp-fun-form): Handle chain forms. At optimization level 6 or higher, if the form is eligible for the transform, perform it. (inline-chain-rec, can-inline-chain, inline-chain): New functions. * txr.1: Mention that *opt-level* 6 does this chain optimization.
* compiler: whitespace issue.Kaz Kylheku2024-02-071-1/+1
| | | | | * stdlib/compiler (lambda-apply-transform): Fix misleading indentation.
* doc: missing plural.Kaz Kylheku2024-02-041-1/+1
| | | | | * txr.1: Under Pattern-Matching Notation: subject-verb agreement.
* New function: hist-sort-by.Kaz Kylheku2024-02-025-3/+37
| | | | | | | | | | | | | * eval.c (eval_init): Register hist-sort-by intrinsic. * lib.c (hist_sort_by): New function. (hist_sort): Wrapper for hist_sort_by now. * lib.h (hist_sort_by): Declared. * tests/012/sort.tl: Tests. * txr.1: Documented.
* hash-eql: regression: always returns zero.Kaz Kylheku2024-02-012-1/+7
| | | | | | | | | | | * hash.c (hash_eql): Use hash_traversal_limit for the initial value of the limit rather than zero. Commit 84e9903c27ede099e2361e15b16a05c6aa4dc819 in October 2019 fixed eql_hash to actually make use of the limit, which broke the assumption that we could use zero. * tests/010/hash.tl: Add a few tests for hash-equal and hash-eql.
* quips: new bad pun.Kaz Kylheku2024-01-201-0/+1
| | | | * stdlib/quips.tl (%quips%): New entry.
* We need a length-< special method.Kaz Kylheku2024-01-197-5/+67
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Structure objects can be used to implement lazy structures such as sequences. It is undesirable to take the length of a lazy sequence because it forces all of its elements to exist. Moreover, if the sequence is infinite, it is impossible. There are situations in which it is only necessary to know whether the length is less than a certain bound, and for that we have the length-< function. That works on infinite sequence such as lazy lists, requiring them to be forced only so far as to determine the truth value of the test. We need objects that implement lazy sequences to work with this function. * struct.h (enum special_slot): New member length_lt_m. * lib.h (length_lt_s): Symbol variable declared. * struct.c (special_sym): New entry in this table, associating the length_lt_m enum with the length_lt_s symbol variable. * lib.c (length_lt_s): Symbol variable defined. (length_lt): Handle COBJ objects that are structures. we test whether they have a length-< method, or else length method. If they don't have either, we throw. We don't fall back on the default case for objects that don't have a length-< method, because the diagnostic won't be good if they don't have a length method either; the programmer will be informed that the length function couldn't find a length method, without mentioning that it was actually length-< that is being used. * eval.c (eval_init): Register length-< using the length_lt_s symbol variable rather than using intern. * txr.1: Documented. * tests/012/oop-seq.tl: New tests.
* mmap: bug: low length diagnosed as "zero-sized element type"Kaz Kylheku2024-01-181-1/+1
| | | | | | | * ffi.c (mmap_wrap): Make the diagnostic depend on the actual condition that it's wording is about. If the element type is nonzero, but the length is too low for the array to have any elements, that is not strictly an error; we can let that pass.
* doc: mmap: document source parameter.Kaz Kylheku2024-01-181-0/+34
| | | | | | * txr.1: The source argument of mmap is not adequately documented. It can be an integer descriptor, stream or filename string.
* Copyright year bump 2024.Kaz Kylheku2024-01-18138-140/+140
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * LICENSE, LICENSE-CYG, METALICENSE, Makefile, alloca.h, args.c, args.h, arith.c, arith.h, autoload.c, autoload.h, buf.c, buf.h, cadr.c, cadr.h, chksum.c, chksum.h, chksums/crc32.c, chksums/crc32.h, combi.c, combi.h, configure, debug.c, debug.h, eval.c, eval.h, ffi.c, ffi.h, filter.c, filter.h, ftw.c, ftw.h, gc.c, gc.h, glob.c, glob.h, gzio.c, gzio.h, hash.c, hash.h, itypes.c, itypes.h, jmp.S, lib.c, lib.h, linenoise/linenoise.c, linenoise/linenoise.h, match.c, match.h, parser.c, parser.h, parser.l, parser.y, psquare.h, rand.c, rand.h, regex.c, regex.h, signal.c, signal.h, socket.c, socket.h, stdlib/arith-each.tl, stdlib/asm.tl, stdlib/awk.tl, stdlib/build.tl, stdlib/cadr.tl, stdlib/compiler.tl, stdlib/constfun.tl, stdlib/conv.tl, stdlib/copy-file.tl, stdlib/csort.tl, stdlib/debugger.tl, stdlib/defset.tl, stdlib/doloop.tl, stdlib/each-prod.tl, stdlib/error.tl, stdlib/except.tl, stdlib/expander-let.tl, stdlib/ffi.tl, stdlib/getopts.tl, stdlib/getput.tl, stdlib/glob.tl, stdlib/hash.tl, stdlib/ifa.tl, stdlib/keyparams.tl, stdlib/load-args.tl, stdlib/match.tl, stdlib/op.tl, stdlib/optimize.tl, stdlib/package.tl, stdlib/param.tl, stdlib/path-test.tl, stdlib/pic.tl, stdlib/place.tl, stdlib/pmac.tl, stdlib/quips.tl, stdlib/save-exe.tl, stdlib/socket.tl, stdlib/stream-wrap.tl, stdlib/struct.tl, stdlib/tagbody.tl, stdlib/termios.tl, stdlib/trace.tl, stdlib/txr-case.tl, stdlib/type.tl, stdlib/vm-param.tl, stdlib/with-resources.tl, stdlib/with-stream.tl, stdlib/yield.tl, stream.c, stream.h, struct.c, struct.h, strudel.c, strudel.h, sysif.c, sysif.h, syslog.c, syslog.h, termios.c, termios.h, time.c, time.h, tree.c, tree.h, txr.1, txr.c, txr.h, unwind.c, unwind.h, utf8.c, utf8.h, vm.c, vm.h, vmop.h, win/cleansvg.txr, y.tab.c.shipped: Copyright year bumped to 2024.
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