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* New quasiquote idea: let's have two quasiquote macros sharing oneKaz Kylheku2014-03-011-9/+13
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | expander. One macro based on sys:qquote, sys:unquote and sys:splice, and the other based on qquote, unquote and splice in the user package. The read syntax puts out the sys: one. * eval.c (expand_qquote): Takes three additional arguments: the qquote, unquote and splice symbols to recognize. The invalid splice diagnostic is adjusted based on which backquote we are expanding. (me_qquote): Look at the symbol in the first position of the form and then expand either the internal quasiquote macro or the public one, passing the right symbols into expand_qquote. (eval_init): Register error-throwing stub functions for the sys_qquote_s, sys_unquote_s and sys_splice_s symbols. Register a macro for sys_qquote_s. * lib.c (sys_qquote_s, sys_unquote_s, sys_splice_s): New symbol variables. (obj_init): Initialize new variables. Change qquote_s, unquote_s and splice_s to user package. (obj_print, obj_pprint): Convert only sys_qquote_s, sys_unquote_s and sys_splice_s to the read syntax. The quote_s, unquote_s and splice_s symbols are not treated specially. * lib.h (sys_qquote_s, sys_unquote_s, sys_splice_s): Declared. * parser.y (n_expr): Use sys_qquote_s, sys_unquote_s and sys_splice_s rather than qquote_s, unquote_s and splice_s. (unquotes_occur): Likewise. * txr.1: Documented.
* Turn *gensym-counter* into proper special variable.Kaz Kylheku2014-02-281-4/+3
| | | | | | | | | | | | | | | | | * eval.c (eval_init): Save *gensym-counter* symbol in gensym_counter_s symbol variable right after interning, and use zero as the inital value rather than the gensym_counter variable which is removed now. * lib.c (gensym_counter_s): New symbol variable. (gensym_counter): Variable removed. (gensym): Slight refactoring to avoid a double variable lookup. Also, for generational GC correctness, use the set macro to update it, since the variable could live inside heap object and the counter could overflow to bignums which are heap objects. (obj_init): Remove initialization of gensym_counter. * lib.h (gensym_counter_s): Declared. (gensym_counter): Declaration removed, replaced by macro.
* Change in the design of how special variables work, to fix the brokenKaz Kylheku2014-02-281-8/+30
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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.
* * lib.c (copy): New function.Kaz Kylheku2014-02-271-0/+18
| | | | | | | | * lib.h (copy): Declared. * eval.c (eval_init): Registered copy function as intrinsic. * txr.1: Added missing documentation for length. Documented copy.
* * lib.c (make_like): If the first element of list isn'tKaz Kylheku2014-02-261-1/+3
| | | | | | a character, then don't try to make it into a string; keep it as a list. This allows [mapcar list "abc" "def"] to work intuitively rather than blow up.
* * lib.c (lit_s): New symbol.Kaz Kylheku2014-02-261-5/+8
| | | | | | | (code2type): Return lit_s for LIT type. (typeof): Return lit_s for TAG_LIT. (replace_str): Error message wording. (obj_init): lit_s interned.
* * lib.c (obj_init): Revert qquote, unquote and spliceKaz Kylheku2014-02-251-3/+3
| | | | | | to the system namespace, for hygiene. * txr.1: Updated.
* * lib.c (obj_print, obj_pprint): Render quasi-quote hash andKaz Kylheku2014-02-241-1/+13
| | | | | | | | | | | | vector literals using their original notation. * parser.y (unquotes_occur): Takes new argument, level. Only finds quotes which are at the given quasiquoting level. Finally, this is the right semantics. In the first version of this function, we were not eager enough: we neglected to find unquotes that were wrapped in nested quasiquotes. Then we were too eager: finding any unquotes, even ones belonging to the inner backquotes. (vector, hash, choose_quote): Pass zero to unquotes_occur function.
* * lib.c (obj_init): changing the quote, qquote, unquoteKaz Kylheku2014-02-221-4/+4
| | | | | and splice symbols to be in the regular user package, rather than the system package.
* * parser.y: Allow the (. expr) syntax to denote expr.Kaz Kylheku2014-02-221-0/+28
| | | | | | | | | * eval.h: Declare existing lambda_s extern variable. * lib.c (obj_print, obj_pprint): print (lambda sym ...) as (lambda (. sym) ...) and (lambda sym) as (lambda (. sym)). * txr.1: document it.
* Replacing uses of the eq function which are used only as C booleans,Kaz Kylheku2014-02-221-10/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | with just using the == operator. Removing cobj_equal_op since it's indistinguishable from eq. Streamlining missingp and null_or_missing_p. * eval.c (transform_op): eq to ==. (c_var_ops): cobj_equal_op to eq. * filter.c (trie_compress, trie_lookup_feed_char, filter_string_tree, html_hex_continue, html_dec_continue): eq to ==. * hash.c (hash_iter_ops): cobj_equal to eq. * lib.c (countq, getplist, getplist_f, search_str_tree, posq): eq to ==. (cobj_equal_op): Function removed. * lib.h (cobj_equal_op): Declaration removed. (missingp): Becomes a simple macro that yields a C boolean instead of t/nil val, because it's only used that way. (null_or_missing_p): Becomes inline function returning int. * match.c (v_output): eq to ==. * rand.c (random_state_ops): cobj_equal_op to eq. * regex.c (char_set_obj_ops, regex_obj_ops): cobj_equal_op to eq. (reg_derivative): Silly if3 expression replaced by null. (regexp): Redundant if2 expression wrapped around eq removed. * 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): cobj_equal_op to eq. * syslog.c (syslog_strm_ops): cobj_equal_op to eq.
* The C function nullp is being renamed to null, and the rarelyKaz Kylheku2014-02-221-10/+10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | used global variable null which holds a symbol becomes null_s. A new macro called nilp is added that more efficiently checks whether an object is nil, producing a C boolean value rather than t or nil. Most of the uses of nullp in the codebase just become the more streamlined nilp. * debug.c (show_bindings): nullp to nilp * eval.c (lookup_var, lookup_var_l, lookup_fun, lookup_sym_lisp1, do_eval, expand_qquote, expand_quasi, expand_op): nullp to nilp. (op_modplace): nullp to null. (eval_init): Update registration of null and not from C function nullp to null. * filter.c (trie_compress, html_hex_continue): nullp to nil. (filter_string_tree): null to null_s. * hash.c (hash_next): nullp to nilp. * lib.c (null): Variable renamed to null_s. (code2type): null to null_s. (lazy_flatten_scan, chainv, lazy_str, lazy_str_force_upto, obj_print, obj_pprint): nullp to nilp. (obj_init): null to null_s; nullp to null. * lib.h (null): declaration changed to null_s. (nullp): Inline function renamed to null. (nilp): New macro. * match.c (do_match_line): nullp to nilp. * rand.c (make_random_state): Likewise. * regex.c (compile_regex): Likewise.
* * eval.c (env_hash): new function.Kaz Kylheku2014-02-181-0/+2
| | | | | | | | | | | | | | | | (eval_init): Register env and env_hash functions. Register prog_args and prog_args_full as *args* and *full-args*. * lib.c (timegm_hack): Invalidate env_list, after mucking with the environment via setenv and unsetenv. * txr.c (prog_args_full, prog_args): New global variables. (txr_main): Command-line processing converted to use TXR's library. Populates prog_args_full and prog_args. * txr.h (prog_args_full, prog_args): Declared. * txr.1: Documented *args*, *full-args*, env and env-hash.
* * eval.c (eval_init): Register gensym function as the gensymKaz Kylheku2014-02-171-7/+1
| | | | | | | | | | | | | | intrinsic, rather than gensymv. Register gensym_counter as *gensym-counter*. * lib.c (gensym): Handle missing prefix argument by defaulting the prefix to "g". (gensymv): Function removed. * lib.h (gensymv): Declaration removed. * txr.1: Fixed omission: missing documentation for gensym. Documented *gensym-counter*.
* Replacing acons_new_l and aconsq_new_l interfaces with onesKaz Kylheku2014-02-141-9/+10
| | | | | | | | | | | | | | | | | | | | | | | | | | | that return the new or old cons cell rather than a pointer to its cdr field. * eval.c (transform_op): use of acons_new_l replaced with acons_new_c. * hash.c (struct hash): acons_new_l_fun member replaced with acons_new_c_fun. (make_hash, make_similar_hash): initialize acons_new_l_fun member using either acons_new_c or aconsql_new_c. (gethash_l): function becomes an inline in hash.h. (gethash_c): new function, based on gethash_l. (inhash, gethash_n): updated w.r.t struct hash change. * hash.h (gethash_c): declared. (gethash_l): becomes an inline wrapper for gethash_c. * lib.c (acons_new_l, aconsql_new_l): functions removed. (acons_new_c, aconsql_new_c): new functions. (obj_init): use gethash_c and rplacd instead of gethash_l and set. * lib.h (acons_new_l, aconsql_new_l): declarations removed. (acons_new_c, aconsql_new_c): declared.
* * lib.c (class_check): Bugfix: the function was assuming thatKaz Kylheku2014-02-141-1/+2
| | | | | the argument is a pointer type object, leading to a crash if given a fixnum integer or string literal.
* * lib.c (some_satisfy, all_satisfy, none_satisfy): Fix codingKaz Kylheku2014-02-121-3/+3
| | | | mistake from two commits ago leading to a regression.
* * eval.c (eval_init): Register new functions posqual, posql,Kaz Kylheku2014-02-111-0/+66
| | | | | | | | | | posq, pos, and pos_if as intrinsics. * lib.c (posqual, posql, posq, pos, pos_if): New functions. * lib.h (posqual, posql, posq, pos, pos_if): Declared. * txr.1: Documented
* * eval.c (eval_init): Turn a require argument into an optionalKaz Kylheku2014-02-111-0/+3
| | | | | | | | | | one for the functions some, all and none. * lib.c (some_satisfy, all_satisfy, none_satisfy): Add defaulting behavior for pred parameter. * txr.1: Document that the predicate function is optional in calls to some, all and none.
* * eval.c (rperm_list, rperm_vec, rperm_str): n variable renamedKaz Kylheku2014-02-091-0/+2
| | | | | | | | | | | | | | | | | | 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 Kylheku2014-02-081-4/+21
| | | | overflows the size_t type that is passed to malloc, throw an exception.
* * lib.c (int_str): Regression: handle base argument properly.Kaz Kylheku2014-02-061-1/+1
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* * hash.c (hash_grow, make_hash, make_similar_hash, copy_hash):Kaz Kylheku2014-02-061-4/+5
| | | | | | | | | | | | | | | 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 Kylheku2014-02-061-4/+13
| | | | | | | | | | | | 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 Kylheku2014-02-051-0/+2
| | | | | | | 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 Kylheku2014-02-051-25/+51
| | | | | | | | | | | | | | | | 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 Kylheku2014-02-051-100/+45
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * 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 (apply): Pass missing optional arguments as colon_k.Kaz Kylheku2014-02-051-11/+48
| | | | | | | | | | | | | | | | | | | | | | | 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 Kylheku2014-02-031-5/+0
| | | | | * lib.h (nullp): New inline function. (eq): Removed useless parentheses: it's not a macro.
* append can now take additional leading arguments before the list.Kaz Kylheku2014-02-021-0/+10
| | | | | | | | | | | | | * 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.
* * eval.c (apply): Support string and vector arglist.Kaz Kylheku2014-02-021-0/+17
| | | | | | | | | | | (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.
* * lib.c (d): Disable garbage collection around the dump.Kaz Kylheku2014-02-011-0/+2
| | | | | | 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.
* * eval.c (meta_meta_p, meta_meta_strip): New static functions.Kaz Kylheku2014-01-281-2/+6
| | | | | | | | | | | | | | | (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.
* * lib.c (reduce_left, reduce_right): changing the behavior so thatKaz Kylheku2014-01-271-1/+24
| | | | | | | | | 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.
* * lib.c (obj_print, obj_pprint): Bugfix: there may beKaz Kylheku2014-01-271-2/+2
| | | | | | additional expressions forms in (sys:var <sym>) after the sym. These were not being printed. Such syntax occurs often in the TXR pattern language.
* * hash.c (hash_update): New function.Kaz Kylheku2014-01-241-0/+37
| | | | | | | | | | | | * 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.
* * lib.c (conses, lazy_conses, func_set_env): New functions.Kaz Kylheku2014-01-231-0/+37
| | | | | | | | | | | (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 Kylheku2014-01-221-70/+161
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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.
* * eval.c (mapcarv, mappendv): Convert output to type of leftmostKaz Kylheku2014-01-211-10/+41
| | | | | | | | | | | | | 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.
* * lib.c (car, cdr, ldiff): Extend to handle vectors and strings.Kaz Kylheku2014-01-211-3/+33
| | | | | | | Thereby, numerous previously list-only operations in TXR Lisp now magically handle strings and vectors. * txr.1: Documented.
* * lib.c (broken_down_time_list): New static function.Kaz Kylheku2014-01-201-0/+34
| | | | | | | | | | | (time_fields_local, time_fields_utc): New functions. * lib.h (time_fields_local, time_fields_utc): Declared. * eval.c (eval_init): Intern time_fields_local and time_fields_utc as intrinsic functions. * txr.1: Documented.
* * lib.c (obj_print, obj_pprint): Convert the internal representationKaz Kylheku2014-01-151-0/+12
| | | | | of @sym and @(expr ...) syntax back to these notations instead of leaving them as (sys:var sym) and (sys:expr expr ...).
* * arith.c: Revised error messages to refer to Lisp names insteadKaz Kylheku2014-01-151-11/+11
| | | | | | | | | | of C names of functions, or otherwise clarified them. * filter.c: Likewise. * lib.c: Likewise. * match.c: Likewise.
* * configure: Detect platforms which don't reveal declarationsKaz Kylheku2014-01-101-5/+0
| | | | | | | | | | | | | | in C headers which are extensions to standard C, like popen or fileno, in response to standard feature selection macros like -D_POSIX_SOURCE. MinGW and Cygwin are offenders. These platforms hide the declarations when gcc is in -ansi mode, by testing for __STRICT_ANSI__. Turns out, however, that -U__STRICT_ANSI__ on the gcc command line strips this away, causing the declarations to be revealed. * lib.c, parser.l, stream.c, utf8.c: Removed the declarations which compensated for the above problem. Yippee! Fuck you, stupid Cygwin troglodytes, and the MinGW horse you rode in on. http://cygwin.com/ml/cygwin/2011-10/msg00131.html
* * configure (lang_flags): Let us switch from using _XOPEN_SOURCE=2Kaz Kylheku2014-01-101-2/+2
| | | | | | | | | | | | | | | | | | | to _POSIX_C_SOURCE=199309L and _BSD_SOURCE. In the .exe suffix test, try harder to redirect ls's output. Test for fork stuff now needs <sys/types.h> evidently; <unistd.h> does not necessarily pid_t, even though it defines functions that return and accept pid_t! The timegm test no longer needs _SVID_SOURCE since _BSD_SOURCE covers it, and so we end up not using _SVID_SOURCE any more. New tests for usleep and nanosleep. The test for setenv is not conditional on timegm failing. * eval.c: Include <time.h> and conditionally <windows.h>. (usleep_wrap): New function. (eval_init): New usleep_wrap function registered as usleep intrinsic. * lib.c: Only define setenv and unsetenv if we don't have timegm, because only in that situation they are used.
* * configure: Generate HAVE_VALGRIND as #define-d to 1, rathernKaz Kylheku2014-01-101-5/+5
| | | | | | | | | | | | | | | than just fdefined. * gc.c: Use #if HAVE_VALGRIND instaed of #ifdef HAVE_VALGRIND, consistently with other HAVE_* config variables. * lib.c: Likewise. * lib.h: Likewise. * txr.c: Likewise. * txr.h: Likewise.
* Long overdue MinGW port maintenance.Kaz Kylheku2014-01-091-0/+51
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * Makefile: Use new EXE variable from config.mk. * configure (exe, have_windows_h): New variables. Handle situations with .exe suffix; on MiGW, the rm command doesn't work on executables if the .exe suffix is not given. New tests for localtime_r and gmtime_r. * lib.c: Supply declarations which are missing on MinGW because we use gcc -ansi, because MinGW doesn't follow established conventions like -D_POSIX_SOURCE. Supply definitions for gmtime_r, localtime_r, setenv and unsetenv. * parser.l: Supply declarations which are missing on MinGW. * signal.h (async_sig_enabled): Declare differently based on HAVE_POSIX_SIGS. Misspelled typedef fixed in the code for !HAVE_POSIX_SIGS that has hitherto not been compiled. (sig_mask): Wrap declaration in #ifdef HAVE_POSIX_SIGS because it relies on sigset_t. * stream.c: Supply declarations which are missing on MinGW. Include <windows.h> if we have it. (sleep): Define for Windows. (statf): Handle missing st_blksize and st_blocks members in struct stat. (stream_init): Handle numerous missing S_* macros. * utf8.c: Supply declarations which are missing on MinGW.
* * lib.c (intern): fix the previous diagnostic bug once more with moreKaz Kylheku2013-12-161-3/+4
| | | | | | | | | | feeling. * parser.l (grammar): Recognize package prefixes in symbol tokens. Got rid of special rule for handling lone colon. * parser.y (sym_helper): Catch undefined package as a parsing error rather allowing intern function to throw exception.
* Changing the tokenizer to get rid of IDENT, KEYWORD and METAVARKaz Kylheku2013-12-151-3/+4
| | | | | | | | | | | | | | | | | | | | | token categories, replaced by a single one called SYMTOK. Package prefixes are now recognized and processed in tokens. * lib.c (delete_package): Fix problem in no-such-package error case: it would always report nil as the name. (intern): Fix nonsensical error message: in the no-such-package case it would report that the symbol exists already. * parser.l (grammar): Occurences of KEYWORD, METAVAR, and IDENT scrubbed. All rules reporting any of these now return SYMTOK. The main one of these is greatly simplified. * parser.y (sym_helper): New function. (char_from_name): const qualifier inside param's type declaration. (grammar): IDENT, KEYWORD and METAVAR tokens are gone. New token SYMTOK. Grammar refactored around SYMTOK and using the new sym_helper function. (char_from_name): Updated.
* First cut at signal handling support.Kaz Kylheku2013-12-121-0/+16
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * Makefile (OBJS-y): Include signal.o if have_posix_sigs is "y". * configure (have_posix_sigs): New variable, set by detecting POSIX signal stuff. * dep.mk: Regenerated. * arith.c, debug.c, eval.c, filter.c, hash.c, match.c, parser.y, parser.l, rand.c, regex.c, syslog.c, txr.c, utf8.c: Include new signal.h header, now required by unwind, and the <signal.h> system header. * eval.c (exit_wrap): New function. (eval_init): New functions registered as intrinsics: exit_wrap, set_sig_handler, get_sig_handler, sig_check. * gc.c (release): Unused functions removed. * gc.h (release): Declaration removed. * lib.c (init): Call sig_init. * stream.c (set_putc, se_getc, se_fflush): New static functions. (stdio_put_char_callback, stdio_get_char_callback, stdio_put_byte, stdio_flush, stdio_get_byte): Use new functions to enable signals when blocked on I/O. (tail_strategy): Allow signals across sleep. (pipev_close): Allow signals across waitpid. (se_pclose): New static function. (pipe_close): Use new function to enable signals across pclose. * unwind.c (uw_unwind_to_exit_point): use extended_longjmp instead of longjmp. * unwind.h (struct uw_block, struct uw_catch): jb member changes from jmp_buf to extended_jmp_buf. (uw_block_begin, uw_simple_catch_begin, uw_catch_begin): Use extended_setjmp instead of setjmp. * signal.c: New file. * signal.h: New file.
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