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* * 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.
* * stream.c (remove_path, rename_path): New functions.Kaz Kylheku2014-01-286-1/+54
| | | | | | | | | | | * 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.
* * eval.c (meta_meta_p, meta_meta_strip): New static functions.Kaz Kylheku2014-01-287-104/+175
| | | | | | | | | | | | | | | (transform_op): Recognize compounded metas, and strip one level off. (eval_init): Intern sys:expand function so we have access to the form expander from TXR Lisp. * lib.c (obj_print, obj_pprint): Fix: wasn't rendering metanumbers. * parser.y (list): Support @ in front of anything. If it's an atom, treat it similarly to a metasymbol or metanumber. * txr.1: Documented meta-meta arguments in nested op. * genvim.txr, txr.vim: Support coloring for compounded meta syntax.
* * txr.vim, genvim.txr: There can now be whitespace in TXR LispKaz Kylheku2014-01-273-80/+84
| | | | like @ (a b c) and @ [1 2 3].
* Lexing and parsing improvements, leaving things less hacky than before,Kaz Kylheku2014-01-273-61/+60
| | | | | | | | | | | | | | | | | | | | | | | albeit hacky. * parser.l (BSYM, NSYM): Regex definitions gone. (BT0, BT1, BT2, NT0, NT1, NT2): New regex definitions. (BTREG, BTKEY, NTREG, NTKEY): Rewritten, so that they cannot match a lone @ character as a symbol name. (grammar): Rules for returning METAPAR, METABKT and METAQUO are gone. Instead, we just recognize a @ in the NESTED and BRACED states and return it as a token. * parser.y (METAPAR, METABKT, METAQUO): Token types removed. (meta_expr): Nonterminal symbol removed. ('@'): New token type. (list): Quotes and splices handling removed from this rule. The new token '@' is handled here, on the other hand, because there are places that reference the list rule that need to support @ expressions. (n_expr): Reference to meta_expr removed. Quote, unquote and splice added here. (yybadtoken): Removed references to METAPAR, METABKT and METAQUO.
* * parser.y (yybadtoken): Handle METAQUO in switch.Kaz Kylheku2014-01-272-0/+5
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* * lib.c (reduce_left, reduce_right): changing the behavior so thatKaz Kylheku2014-01-273-22/+84
| | | | | | | | | the initial value is optional. this creates the possibility that the effective list of operands is empty, in which case the function must support a call with no arguments, just like in the common lisp reduce. * txr.1: rewrote reduce-left and reduce-right documentation.
* * regex.c (match_regex_right): Fix semantics of second argumentKaz Kylheku2014-01-273-11/+74
| | | | | | | | to something more useful. * regex.h (match_regex_right): Change name of parameter. * txr.1: Documented match-regex-right.
* * lib.c (obj_print, obj_pprint): Bugfix: there may beKaz Kylheku2014-01-272-2/+9
| | | | | | additional expressions forms in (sys:var <sym>) after the sym. These were not being printed. Such syntax occurs often in the TXR pattern language.
* * regex.c (match_regex_right): New function.Kaz Kylheku2014-01-264-0/+31
| | | | | | * regex.h (match_regex_right): Declared. * eval.c (eval_init): Register match_regex_right as instrinsic.
* Implementing more correct treatment of meta formsKaz Kylheku2014-01-262-36/+105
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | like @[...] and @(...) occurring in the TXR pattern language. The previous behavior is that the parser always expands the interior of these forms when they occur. This is wrong. These forms only denote TXR Lisp (and so require expansion) when they occur in a directive, inside a sub-expression that is not already known to be Lisp. For instance in @(do @(op foo)), the inner @(op foo) should not be subject to expansion. The reason that the argument forms of @(do) are TXR Lisp. The @(op foo) form denotes (sys:expr foo), and that operator currently has no meaning; and so we should not expand it. The previous, buggy behavior would turn the @(op ..) into a @(lambda ...). Another example is @(bind a @(list @(op foo))) where @(list ...) denotes TXR Lisp and so the interior of the form should be expanded. However, the @(op foo) should not be expanded into @(lambda ...) Expanding @(...) forms is not currently harmful, but it interferes with code that wants to use the @(...) syntax for its own use, The solution involves adding shims in the parser so that the expansion is only applied when expressions are reduced to the top level within a directive, and then to walk the expressions, looking for the @ syntax and expanding only the outermost occurrence thereof. * parser.y (expand_meta): New static function. (n_exprs n_expr): New nonterminal symbols. (elem): The arguments of the list elem (representing a generic directive) now need to be put through expand_meta when it is not @(do ...) or @(require ...). (list): Use n_exprs instead of exprs. (meta_expr): Do not call expand, and use n_expr(s) instead of expr(s). (exprs, expr): These rules no become just a shim which expands the outer-most metas. The actual parsing is represented by n_expr and n_exprs ("n" stands for nested), which behave just like the old expr and exprs.
* Sigh; more lexical-syntactic hacks. This adds handlingKaz Kylheku2014-01-263-10/+41
| | | | | | | | | | for the @' combination, as in @(bind a @'(foo ,bar)) * parser.l: Handle the new METAQUO token. * parser.y (METAQUO): New token. (meta_expr): New "METAQUO expr" case. Added missing METABKT error handling case.
* * hash.c (hash_update): New function.Kaz Kylheku2014-01-247-0/+95
| | | | | | | | | | | | * hash.h (hash_update): Declared. * lib.c (update): New function. * lib.h (update): Declared. * eval.c (eval_init): Register hash_update and update as intrinsics. * txr.1: Documented.
* * eval.c (expand): Bugfix in expansion of dohash: neglectedKaz Kylheku2014-01-232-1/+8
| | | | to insert result form into the expanded output.
* Version 76txr-76Kaz Kylheku2014-01-238-92/+144
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* * eval.c (expand_op): Takes sym argument to distinguish op and do.Kaz Kylheku2014-01-233-4/+38
| | | | | | | | The dwim operator is deleted when the symbol is do. (expand): Expand do_s form with expand_op, not only op_s. Pass down symbol. * txr.1: Document do operator.
* * eval.c (do_eval): Fix incorrect, recently introduced codeKaz Kylheku2014-01-232-10/+16
| | | | | rearrangement that gives precedence to operator lookup over function lookup.
* Bugfix: @(require ...) not expanding forms.Kaz Kylheku2014-01-234-10/+19
| | | | | | | | | | * eval.c (expand_forms): Static function becomes external. (expand_form): Remove case which handles do_s. * eval.h (expand_forms): Declared. * parser.y (elem): Expand both do_s and require_s forms by using expand_forms.
* * lib.c (conses, lazy_conses, func_set_env): New functions.Kaz Kylheku2014-01-235-1/+102
| | | | | | | | | | | (lazy_conses_func): New static function. * lib.h (conses, lazy_conses, func_set_env): Declared. * eval.c (eval_init): conses, lazy_conses and func_set_env registered as intrinsics. * txr.1: Documented.
* Changes to the list collection mechanism to improveKaz Kylheku2014-01-228-140/+252
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | the extension of list operations over vectors and strings. * eval.c (do_eval_args, bindings_helper, op_each, subst_vars, supplement_op_syms, mapcarv, mappendv): Switch from list_collect_* macros to functions. * lib.c (copy_list): Switch from list_collect* macros to functions. Use list_collect_nconc for the final terminator. Doing a copy there with list_collect_append was actually wasteful, and now that list_collect_append calls copy_list in places, it triggered runaway recursion. (make_like): Bugfix: list_vector was used instead of vector_list. (to_seq, list_collect, list_collect_nconc, list_collect_append): New functions. (append2, appendv, nappend2, sub_list, replace_list, ldiff, remq, remql, remqual, remove_if, keep_if, proper_plist_to_alist, improper_plist_to_alist, split_str, split_str_set, tok_str, list_str, chain, andf, orf, lis_vector, mapcar, mapcon, mappend, merge, set_diff, env): Switch from list_collect* macros to functions. (replace_str, replace_vec): Allow single item replacement sequence. * lib.h (to_seq): Declared. (list_collect, list_collect_nconc, list_collect_append): Macros removed, replaced by function declarations of the same name. These functions return the new ptail since they cannot assign to it, requiring all uses to be updated to do the assignment of the returned value. (list_collect_decl): Use val rather than obj_t *. * match.c (vars_to_bindings, h_coll, subst_vars, extract_vars, extract_bindings, do_output_line, do_output, v_gather, v_collect): Switch from list_collect* macros to functions. * parser.y (o_elems_transform): Likewise. * regex.c (dv_compile_regex, regsub): Likewise. * txr.c (txr_main): Likewise.
* Support function versions of if, and, or so that partialKaz Kylheku2014-01-223-13/+91
| | | | | | | | | | | | | | evaluation like (op or @1 42) or (op if (eq @1 foo) bar xyzzy) is possible. * eval.c (do_eval): Change precedence between operator and function lookup to favor operators. This is important since there are several operators now which are also functions. (if_fun, or_fun, and_fun): New static functions. (eval_init): New functions registered as intrinsics. * txr.1: Documented that if, and, or exist as both functions and operators.
* * eval.c (eval_instrinsic): Changed to external linkage.Kaz Kylheku2014-01-225-16/+55
| | | | | | | | | * eval.h (eval_intrinsic): Declared. * txr.c (spec_file): Global variable removed. (txr_main): Support for -e and -p options. Minor code cleanup. * txr.1: Documented new options.
* * eval.c (mapcarv, mappendv): Convert output to type of leftmostKaz Kylheku2014-01-215-12/+69
| | | | | | | | | | | | | input sequence. * lib.c (make_like): New function. (reverse, remq, remql, remqual, remove_if, keep_if, mapcar, mapcon, mappend, set_diff): Convert output list to type of leftmost input sequence. * lib.h (make_like): Declared. * txr.1: Documented.
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