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* Version 79txr-79Kaz Kylheku2014-02-115-4/+36
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* * eval.c (if_fun): Bugfix: forgotten handling of optionalKaz Kylheku2014-02-112-1/+6
| | | | alternative argument.
* * eval.c (subst_vars): Bugfix: results of expressions notKaz Kylheku2014-02-113-9/+34
| | | | | | | | | | | | treated in the same way as variables: lists not stringified, causing expansions with parentheses, and sometimes errors due to unhandled objects. Also, use tostringp instead of format for stringifying objects. stringifying object. Bugfix.k * match.c (subst_vars): Added comment similar to the one in the subst_vars of eval.c. Removed superfluous conversion code where the str variable is already known to be a string.
* * eval.c (apply): Fix regression in dwim operator: not handlingKaz Kylheku2014-02-112-1/+7
| | | | | nil object properly. Since dwim now trivially delegates to apply, apply must recognize nil.
* * combi.c (comb_hash_while_fun, comb_hash_gen_fun, comb_hash): NewKaz Kylheku2014-02-114-7/+61
| | | | | | | | | | | | | static functions. (comb): Support hash tables. * hash.c (print_key_val): When values are nil, print in a more condensed way by omitting the second element. This notation is accepted as input already by the parser. (hash_insert_pair): New function. * txr.1: Description of comb updated to indicate that it works over hashes.
* * arith.c: Remove inclusion of unneeded headers: <limits.h>Kaz Kylheku2014-02-112-3/+5
| | | | and <dirent.h>.
* * Makefile (OBJS): New object file, combi.o.Kaz Kylheku2014-02-118-614/+703
| | | | | | | | | | | | | | | | * dep.mk: Updated. * eval.c: Removed combination and permutation functions; they now reside in combi.c. (generate): Changed from static to external linkage. * eval.h (generate): Declared. * combi.c: New file. * combi.h: New file. * txr.vim: Regenerated.
* * eval.c (rcomb_gen_fun_common): Streamlined implementation.Kaz Kylheku2014-02-102-10/+14
| | | | Got rid of stack that is consed up on each call.
* Relaxed behavior: don't throw errors for impossible permutations,Kaz Kylheku2014-02-103-50/+78
| | | | | | | | | | | | | | | but return an empty list. * eval.c (perm_init_common): Do not throw error; return a nil state if permutation length exceeds sequence length. (perm_vec, perm_list, perm_str): Check for null return from perm_init_common and return empty list. (k_conses): Do not throw error; return empty list. (comb_list_gen_fun): Check for nil value out of k_conses. (comb): For vectors and strings, check length against k and return nil if necessary. For lists, comb_list_gen_fun handles it. * txr.1: Section order rearranged, and updated.
* * eval.c (rcomb_while_fun, rcomb_gen_fun_common,Kaz Kylheku2014-02-103-3/+159
| | | | | | | | rcomb_list_gen_fun, rcomb_list, rcomb_vec_gen_fun, rcomb_vec, rcomb_str_gen_fun, rcomb_str, rcomb): New static functions. (eval_init): Register rcomb as intrinsic. * txr.1: Documented rcomb.
* * eval.c (rperm, perm_str): Just in case, return a mutable emptyKaz Kylheku2014-02-103-2/+172
| | | | | | | | | | string, rather than null_string, which is a literal. (k_conses, comb_while_fun, comb_gen_fun_common, comb_list_gen_fun, comb_list, comb_vec_gen_fun, comb_vec, comb_str_gen_fun, comb_str, comb): New static functions. (eval_init): Registered comb as instrinsic. * txr.1: Documented comb.
* * eval.c (rperm_list, rperm_vec, rperm_str): n variable renamedKaz Kylheku2014-02-095-22/+271
| | | | | | | | | | | | | | | | | | to k, for consistency with rperm. (rperm): Likewise, and the behavior in the k == zero case is changed to return a single empty permutation. (perm_while_fun, perm_index, perm_gen_fun_common, perm_init_common, perm_vec_gen_fill, perm_vec_gen_fun, perm_vec, perm_list_gen_fill, perm_list_gen_fun, perm_list, perm_str_gen_fill, perm_str_gen_fun, perm_str, perm): New static functions. (eval_init): perm registered as intrinsic. * lib.c (vecref_l): Bugfix: allow negative indices, just like vecref. * lib.h (three, four): New macros. * txr.1: Updated documentation for rperm. Documented perm.
* * lib.c (vector, vec_set_length, cat_vec): When the vector sizeKaz Kylheku2014-02-082-4/+26
| | | | overflows the size_t type that is passed to malloc, throw an exception.
* * eval.c (nperm_while_fun, nperm_gen_fun, nperm_list,Kaz Kylheku2014-02-073-0/+141
| | | | | | | | nperm_vec_gen_fun, nperm_vec, nperm_str_gen_fun, nperm_str, nperm): New static functions. (eval_init): nperm registered as intrinsic. * txr.1: Documented nperm function.
* Version 78.txr-78Kaz Kylheku2014-02-066-72/+131
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* * lib.c (int_str): Regression: handle base argument properly.Kaz Kylheku2014-02-062-1/+5
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* * hash.c (hash_grow, make_hash, make_similar_hash, copy_hash):Kaz Kylheku2014-02-066-12/+30
| | | | | | | | | | | | | | | Pass second argument to vector. * lib.c (vector): Takes additional argument specifying the value for the slots of the vector. (vector_list, sub_vec): Pass second argument to vector. * lib.h (vector): Declaration updated. * eval.c (eval_init): Register vector as two-argument function with one required arg. * txr.1: Updated.
* * eval.c (op_dwim): Gutted down to just a few lines.Kaz Kylheku2014-02-064-92/+27
| | | | | | | | | | | | 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.
* * lib.c (generic_funcall): If a cons cell is passed asKaz Kylheku2014-02-053-0/+43
| | | | | | | one argument to a sequence being used as a function, split it into two arguments. This is consistent with the DWIM operator behavior. * txr.1: Document callable objects.
* Allow sequences and hashes to be called as functions.Kaz Kylheku2014-02-054-25/+79
| | | | | | | | | | | | | | | | This is already supported in the DWIM operator. * eval.c (apply): If object isn't a function, gather the arguments into an array and delegate to generic_funcall. * lib.c (generic_funcall): Changed from static to external linkage. Supports sequences and hashes as functions. Error messages fixed not to refer to "funcall". (funcall, funcall1, funcall2, funcall3, funcall4): Do not throw exception if fun is not of FUN type; instead, delegate to generic_funcall. Error messages fixed not to refer to "funcall". * lib.h (generic_function): Declared.
* * arith.c (lognot): Conform to new scheme for defaulting optional args.Kaz Kylheku2014-02-0511-221/+223
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * eval.c (apply): Unconditionally use colon_k for missing optional args, for intrinsic functions. (eval_intrinsic, rangev, rangev_star, errno_wrap): Conform to new scheme for defaulting optional args. (reg_fun_mark): Function removed. (eval_init): Switch reduce_left and reduce_right back to reg_fun registration. * hash.c (gethash_n): Conform to new scheme for defaulting optional arguments. * lib.c (sub_list, replace_list, remove_if, keep_if, remove_if_lazy, keep_if_lazy, tree_find, count_if, some_satisfy, all_satisfy, none_satisfy, search_str, match_str, match_str_tree, sub_str, replace_str, cat_str, tok_str, intern, rehome_sym, sub_vec, replace_vec, lazy_str, sort, multi_sort, find, find_if, set_diff, obj_print, obj_pprint): Conform to new scheme for defaulting optional arguments. (func_f0, func_f1, func_f2, func_f3, func_f4, func_n0, func_n1, func_n2, func_n3, func_n4, func_n5, func_n6, func_n7, func_f0v, func_f1v, func_f2v, func_f3v, func_f4v, func_n0v, func_n1v, func_n2v, func_n3v, func_n4v, func_n5v, func_n6v, func_n7v): Remove references to removed mark_missing_args member of struct func. (func_set_mark_missing): Function removed. (generic_funcall): Unconditionally use colon_k for missing optional args, for intrinsic functions. * lib.h (struct func): mark_missing_args member removed. (func_set_mark_missing): Declaration removed. (default_arg, default_bool_arg): New inline functions. * rand.c (random): Left argument is not optional. (rnd): Conform to new scheme for defaulting optional arguments. * regex.c (search_regex, match_regex): Conform to new scheme for defaulting optional arguments. * stream.c (unget_char, unget_byte, put_string, put_char, put_byte, put_line): Conform to new scheme for defaulting optional arguments. * syslog.c (openlog_wrap): Conform to new scheme for defaulting optional arguments. * txr.1: Remove the specification that nil is a sentinel value in default arguments, where necessary. Use consistent syntax for specifying variable parts in argument lists. A few errors and omissions addressed.
* * eval.c (bind_args): Support optional parameters in theKaz Kylheku2014-02-053-16/+75
| | | | | | | | form (sym initform present-p-sym). Also, support the convention that a value of : explicitly passed for an optional argument produces the same behavior as if that argument value were missing. * txr.1: Document new conventions.
* * eval.c (apply): Pass missing optional arguments as colon_k.Kaz Kylheku2014-02-055-24/+107
| | | | | | | | | | | | | | | | | | | | | | | to functions for which this is requested. (reg_fun_mark): New static function. (eval_init): Register reduce_left and reduce_right as requiring marking for missing optionals. * lib.c (func_set_mark_missing): New function. (generic_funcall): Pass missing optional arguments as colon_k to functions for which this is requested. (reduce_left, reduce_right): Handle missing values of init and key. (func_f0, func_f1, func_f2, func_f3, func_f4, func_n0, func_n1, func_n2, func_n3, func_n4, func_n5, func_n6, func_n7, func_f0v, func_f1v, func_f2v, func_f3v, func_f4v, func_n0v, func_n1v, func_n2v, func_n3v, func_n4v, func_n5v, func_n6v, func_n7v): Initialize new mark_missing_args member of struct func. * lib.h (struct func): New bitfield member, mark_missing_args. (func_set_mark_missing): Declared. (missingp, null_or_missing_p): New inline functions. * txr.1: Updated descriptions of reduce-left and reduce-right.
* * lib.c (nullp): Function removed.Kaz Kylheku2014-02-033-7/+10
| | | | | * lib.h (nullp): New inline function. (eq): Removed useless parentheses: it's not a macro.
* * eval.c (op_modplace): Fixing a few argument count mismatchesKaz Kylheku2014-02-032-2/+7
| | | | in format calls.
* Tighten up environment visibility semantics of default argumentKaz Kylheku2014-02-033-23/+26
| | | | | | | | | | | | | | | init forms, while streamlining the implementation. * eval.c (bind_args): Get rid of opt_init_parm array hack; turns out we already have a useful function for extending an environment object, namely env_vbind: hitherto unused! We now make a blank environment upfront and extend it destructively with env_vbind. Except that after evaluating an init form, we create a new environment: this is in case a lexical closure was made by the init form, in which event we don't want to be destructively manipulating the environment any more. * txr.1: Clarified.
* * eval.c (eval_init): Fix incorrect registration ofKaz Kylheku2014-02-032-1/+6
| | | | list_star_intrinsic, diagnosed by compiler.
* * txr.1: Mention that regular expression character classes haveKaz Kylheku2014-02-021-0/+2
| | | | no locale-dependent silliness.
* Adding list* since we get it "for free" thanks to theKaz Kylheku2014-02-023-0/+52
| | | | | | | | | new helper function that supports apply. * eval.c (list_star_intrinsic): New static function. (eval_init): Register list_star_intrinsic as list*. * txr.1: Document list*.
* append can now take additional leading arguments before the list.Kaz Kylheku2014-02-025-21/+64
| | | | | | | | | | | | | * eval.c (apply_frob_args): New static function. (apply_intrinsic): Process arguments with apply_frob_args. (eval_init): apply_intrinsic registered differently, as a variadic function with one mandatory arg. * lib.c (lastcons): New function. * lib.h (lastcons): Declared. * txr.1: Updated append documentation.
* * txr.1: Clarify that arbitrary expressions cannot be usedKaz Kylheku2014-02-021-3/+11
| | | | in the dot position of a function call form.
* * eval.c (apply): Support string and vector arglist.Kaz Kylheku2014-02-025-13/+55
| | | | | | | | | | | (do_eval_args): Support string or vector in dot position. * lib.c (tolist): New function. * lib.h (tolist): Declared. * txr.1: Document how apply and dot position in compound forms supports strings as well as vectors.
* * eval.c (do_eval_args): If the dotted position of the argumentKaz Kylheku2014-02-023-4/+75
| | | | | | | list evaluates to a vector, then convert the vector to a list. * txr.1: Document compound forms, and how they allow the dotted position and how it may be a vector.
* * eval.c (eval_init): Register vector_list function a second timeKaz Kylheku2014-02-023-0/+20
| | | | | | under the name vec, as a variadic function. * txr.1: Document vec.
* * txr.1: Fix bad directives example. Regexes are prefixed by #.Kaz Kylheku2014-02-021-1/+1
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* * txr.1: Fix bad grammar.Kaz Kylheku2014-02-021-3/+3
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* * txr.1: Documented forbidden hash table configuration ofKaz Kylheku2014-02-011-0/+3
| | | | weak keys that are equal-based.
* * hash.c (hash_mark, hash_grow, make_similar_hash,Kaz Kylheku2014-02-013-41/+82
| | | | | | | | | | | | | | | copy_hash, gethash_l, gethash, gethash_f, gethash_n, hash_count, hash_next, hash_eql, hash_equal): Use num_fast instead of num. (make_hash): An attempt to make a weak-keys hash that has equal-based keys is nonsensical; it is now diagnosed with an exception. Use num_fast instead of num. (hash_process_weak): Call breakpt whenever the weak object(s) due to which entries are being deleted match the value in break_obj. Use num_fast instead of num. * parser.l (parse_init): Bugfix: the forms_to_ln_hash was equal-based, which makes no sense.
* Export break_obj.Kaz Kylheku2014-02-013-2/+15
| | | | | | | * gc.c (break_obj): Change to external linkage. (mark): Use t variable instead of re-evaluating obj->t.type. * gc.h (break_obj): Declared.
* * lib.c (d): Disable garbage collection around the dump.Kaz Kylheku2014-02-012-0/+9
| | | | | | It's importa for this function not to have the side effect of triggering garbage collection, when it is used for debugging issues that show up under --gc-debug.
* Whitespace.Kaz Kylheku2014-02-011-1/+1
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* * configure: remove stray debugging printf from theKaz Kylheku2014-01-312-1/+5
| | | | GNU Make check. This was introduced in May 2012.
* * genvim.txr: Support floating-point constants.Kaz Kylheku2014-01-303-10/+21
| | | | | | Do not color embedded decimal integers in symbols as integers. * txr.vim: Regenerated.
* * eval.c (expand_op): When the variant is do, and the symbolKaz Kylheku2014-01-303-2/+17
| | | | | | | | | is an operator, then suppress the addition of the rest parameter in the dotted cons position at the end of the form, since this mechanism for applying additional arguments is only supported by function calls, not by special forms. * lib.h (and2, and3): New macros.
* * eval.c (expand_op): Fix broken do operator. In the case of the doKaz Kylheku2014-01-302-1/+9
| | | | | | | operator, we must feed the entire form to the expander, not the individual forms. That is to say (do operator arg) must expand the form (operator arg), whereas (op fun arg) just expands the forms fun and arg individually.
* Version 77txr-77Kaz Kylheku2014-01-296-64/+130
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* * regex.c (match_regex_right): Fix not returning value.Kaz Kylheku2014-01-292-0/+6
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* Default argument initializer scoping rule change, allowingKaz Kylheku2014-01-293-13/+50
| | | | | | | | | | | | | things like (defun foo (s : (l (length s))) ...). Default arguments can be initialized by expressions that refer to the arguments. * eval.c (bind_args): By means of a local array, defer the evaluation of optional argument init forms until the lexical environment, including all the parameters, is captured. Then valuates the forms in the array, and set the variable values. * txr.1: Clarify the new scoping rules.
* * eval.c (eval_init): Registered existing make_catenated_stream asKaz Kylheku2014-01-284-5/+95
| | | | | | | | | | | | | | intrinsic. * stream.c (cat_get_line, cat_get_char, cat_get_byte): Do not remove the last stream from the stream list, so that there is some stream object there which can take the unget-char or unget-byte operations. (cat_unget_byte, cat_unget_char): New static functions. (cat_stream_ops): unget_char and unget_byte function pointers filled in. * txr.1: Documented catenated-streams.
* * stream.c (struct stdio_handle): New member, is_rotated.Kaz Kylheku2014-01-282-17/+89
| | | | | | | | | | Moved mode member down. (make_stdio_stream_common): Initialize is_rotated. (tail_strategy): Substantially rewritten in order to address a possible race condition, when a file is rotated. The issue is that even when the file disappears, or when the file has been replaced, we must continue reading from the old stream until the end, and only then can we switch to the newly rotated file.
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