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* tests: fix undefined variable warning.Kaz Kylheku2021-08-031-1/+3
| | | | | * tests/012/oop.tl: Adjust one recently added test case to eliminate undefined variable warning.
* oop: fix infelicity in new* and lnew* macros.Kaz Kylheku2021-07-311-0/+14
| | | | | | | | | | * stdlib/struct.tl (sys:new-expander): If the argument of new* or lnew* is dwim, then treat that as an expression, rather than as a boa-style construction. * tests/012/oop.tl: Tests for new* focusing on this issue. * txr.1: Documented.
* tests: multiple evaluation issue in amb.Kaz Kylheku2021-07-301-2/+2
| | | | | | | | | | | | | | | | This issue doesn't affect the tests. This is for the benefit of someone who happens to be copy-and-pasting the amb implementation from here. * tests/012/cont.tl (amb): This function has an issue in that it calls the continuation (future calculation) and then if that succeeds, it normally returns the value. This means that the future is executed again. In the case of N amb expressions, the successful future is executed 2**N times. What amb must do is this: call the continuation and capture the value. If the value is successful, then that is the master return value; just return that from amb-scope, bypassing the second re-execution of the future.
* tests: longer test for delimited continuations.Kaz Kylheku2021-07-301-0/+10
| | | | | * tests/012/cont.tl: New test case. This aborts prior to recent gc fixes.
* parser: allow trailing commas in json, via opt-in flag.Kaz Kylheku2021-07-291-0/+17
| | | | | | | | | | | | | | | | | | | | | | | * parser.c (read_bad_json_s): New symbol variable. (parser_common_init): Propagate value of *read-bad-json* into read_bad_json flag in parser structure. (parser_init): Initialize read_bad_json_s and register the *read-bad-json* dynamic variable. * parser.h (struct parser): New member, read_bad_json. (read_bad_json_s): Declared. * parser.y (json_val): Support an opt_comma symbol just before the closing bracket or brace. (opt_comma): New nonterminal symbol. Recognizes ',' or nothing. Error is flagged if ',' is recognized, and *read-bad-json* is nil. * y.tab.c.shipped: Updated. * tests/010/json.tl: New tests. * txr.1: Documented.
* subtypep: handle struct type objects.Kaz Kylheku2021-07-271-0/+48
| | | | | | | | | | | | | The subtypep function has poor requirements, handling only type symbols. Let's extend it to handle structure type objects. * lib.c (subtypep): In all cases when an argument is considered to be a possible structure symbol, and thus subject to find_struct_type, consider whether it already is a struct type, and just take it as-is. * tests/012/type.tl: New tests. * txr.1: Updated.
* pure-rel-path-p: add tests.Kaz Kylheku2021-07-221-0/+23
| | | | * tests/018/path.tl: New tests.
* op: set nested flag in correct context.Kaz Kylheku2021-07-191-0/+11
| | | | | | | | | | | | * stdlib/op.tl (sys:op-meta-p): Return an extended Boolean value: a true result is an integer indicating the depth of the variable. For instance @1 is depth 0, @@1 is depth 1 and so on. (sys:find-parent): New function. (sys:op-alpha-rename): When processing a nested meta, do not set the nested flag in the immediate parent. Use find-parent to go up to the correct level to which the meta belongs and set the flag there. * tests/012/op.tl: New test cases which depend on this.
* op: fix bug in do.Kaz Kylheku2021-07-191-0/+8
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The June 30 09e70c914ca83b5c7405aa633864db49f27efa05, subject "op: refactor do handling", introduced a regression breaking the tags.tl program. An implicit argument gets inserted twice: [[(do op list @1)] 'x] -> (x x) ;; incorrect/weird This was spotted by Paul A. Patience while working on extending tags.tl for Emacs. It's not exactly a regression because the original behavior is not documented or tested, and has issues; we simply cannot roll back the commit; a proper fix is required. How the above call is now supposed to work is that: - the @1 parameter belongs to the op, not to the do. - the do therefore has no explicitly given parameters of its own. - therefore the do inserts its parameter. In other words (do op list @1) is formally equivalent to (do op list @1 @@1). Both levels of function indirection require an argument: [[(do op list @1) 'x] 'y] -> (y x) [[(do op list @1 @@1) 'x] 'y] -> (y x) * stdlib/op.tl (sys:op-ctx): The structure gets a new slot, nested, which is a flag indicating whether unprocessed nested metas occur. This is critically needed because the sys:op-alpha-rename passes which are called with do-nested-metas being false do not insert nested metas into the gens list; they transform them and leave them in the syntax. Yet we must make decisions based on their presence. Conretely, we must be able to tell that (do op list @@1) has a meta against the outer (do ...), while we are just processing the do. (sys:op-alpha-rename): When replacing a nested meta syntax with the macro invocation, we set the nested flag of the parent context true. (sys:op-expand): Bring back the do-gen; we need it. We cannot simply insert @1 into the syntax, because that is not lexically transparent. If we add @1 to (do op ...) then that @1 is interpreted as belonging to the op, not to the do. We must also check the new Boolean flag nested to properly detect whether we have metas, including unexpanded nested metas. * tests/012/op.tl: New test cases combining (do op ...).
* paths: new tests.Kaz Kylheku2021-07-151-0/+46
| | | | | * tests/018/path.tl: test coverage for abs-path-p and portable-abs-path-p.
* tests: fix stack overflow test case for old gmake.Kaz Kylheku2021-07-141-2/+7
| | | | | | | | | | | | | | | * tests/012/stack.tl: The (if stack-limited ...) test is not correct because even if gerlimit indicates an unlimited stack, we impose a defualt limit, and so (get-stack-limit) returns a an integer value. The idea here was to try to skip this test case when the stack usage is unlmited, which happens under older versions of GNU make, before posix_spawn was introduced. Instead, let's execute this test case only if we have setrlimit. In the forked child, we try to impose a small stack limit that will give use the stack overflow crash we are testing for. The objective of the test case is to validate that when (set-stack-limit 0) is called, the child will abort due to a signal, rather than (recur) returning :so.
* rand: support buffers as random seeds.Kaz Kylheku2021-07-131-0/+84
| | | | | | | | | * rand.c (make_random_state): Recognize buffer object as sources of bits for seeding. * tests/013/rand.tl: New file. * txr.1: Documented.
* tests: guix fixes.Kaz Kylheku2021-07-135-4/+11
| | | | | | | | | | | | | | | | * tests/002/query-1.txr: Skip test if an executable /bin/sh doesn't exist, rather than the bogus reasons. * tests/010/json.tl: Change the condition for the command-put-json tests: not whether cat is found in the search path but whether /bin/sh exists and is executable. * tests/017/realpath.tl: Also quit if /usr/bin doesn't exist. * tests/018/path-test.tl: Exit succesfully if /bin/sh does not exist. Revert the earlier change. * tests/018/process.tl: Quit if no executable /bin/sh exists.
* tests: weaken condition in path search for sh.Kaz Kylheku2021-07-121-1/+1
| | | | | | | * tests/018/path-test.tl: In the Guix build environment, the shell might be found at a path not ending in bin. Let's ust test for ending in /bin. Reported and investigated by Paul A. Patience.
* tests: json: skip tests relying on cat, if missing.Kaz Kylheku2021-07-121-7/+9
| | | | | | | * tests/010/json.tl: skip several test cases which rely on the cat utility for testing command-put-json, if the cat utility is not found in the search path. Reported and investigated by Paul A. Patience.
* tests: json: fix accidentally excluded tests.Kaz Kylheku2021-07-121-2/+2
| | | | | | * tests/010/json.tl: Fix several tests being excluded from the (mtest ...) form to which they are expected to belong, one of them having an extra quote in the expected value, too.
* tests: 002 group: skip test if utils missing.Kaz Kylheku2021-07-121-0/+2
| | | | | | * tests/002/query-1.txr: Terminate with status 13 if the needed utils cannot be found in the search path. Reported and investigated by Paul A. Patience.
* New function: add-suffix.Kaz Kylheku2021-07-101-0/+19
| | | | | | | | | | | * stream.c, stream.h (add_suffix): New function. (stream_init): add-suffix intrinsic registered. * tests/018/path.tl: Tests. * txr.1: Documented. * stdlib/doc-syms.tl: Updated.
* New functions: trim-short-suffix, trim-long-suffix.Kaz Kylheku2021-07-101-0/+48
| | | | | | | | | | | | | | | * lib.c, lib.h (chk_substrdup): New function. * stream.c, stream.h (trim_short_suffix, trim_long_suffix): New functions. (stream_init): trim-short-suffix and trim-long-suffix intrinsics registered. * tests/018/path.tl: New tests. * txr.1: Documented. * stdlib/doc-syms.tl: Updated.
* suffix functions: new test cases.Kaz Kylheku2021-07-101-1/+3
| | | | | * tests/018/path.tl: New cases covering dotted name situation, which is not a suffix, but can have a suffix.
* lib: tests for keep-if, remove-if, separate.Kaz Kylheku2021-07-101-0/+42
| | | | * tests/012/seq.tl: New tests.
* subtypep: handle COBJ inheritance.Kaz Kylheku2021-07-091-0/+20
| | | | | | | | | | | | | | | | | | * lib.c (class_from_sym): New static function. (subtypep): Remove special case handling of stream versus stdio-stream. If the two types are not both structures, then check whether they are both cobj classes. If so, check if they are in an inheritance relationship via the cobj_hash. (cobj_populate_hash): Map each symbol to a fixnum integer which gives class handle'position in the cobj_class table. (cobj_class_exists): Style: compare to nil instead of 0. (obj_init): Do not call cobj_populate_hash here, it is far too early: only a couple of COBJ types exist at this point. Moreover, hash_init has not been called so hash_cls and hash_iter_cls still have null symbols. (init): Call obj_populate_hash here, as the last step. * tests/012/type.tl: New file.
* with-resources: undocumented nil skip behavior.Kaz Kylheku2021-07-071-0/+18
| | | | | | | | | | | | | | | Paul A. Patience discovered the hidden "feature" of with-resourcers, that the three-argument form of the binding (var init cleanup) causes the with-resources form to terminate if init returns nil. The (var init) syntax doesn't generate this logic. * stdlib/with-resources.tl (with-resources): Do not emit the when form unless <= 265 compatibility is in effect. * tests/012/oop-mac.tl: New file. * txr.1: Compat note added.
* tests: fix malformed chmod.tl.Paul A. Patience2021-07-051-11/+11
| | | | | | * tests/018/chmod.tl (os): Fix final parentheses of defvarl form accidentally encompassing the rest of the source file. Replace tabs with spaces.
* genman, lib, tests: use defvarl where possible.Paul A. Patience2021-07-058-37/+31
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | * genman.txr (dupes, tagnum): Replace defvar with defvarl. * stdlib/doc-lookup.tl (os-symbol): Same. * tests/011/macros-3.tl (x): Same. * tests/011/mandel.txr (x-centre, y-centre, width, i-max, j-max, n) (r-max, pixel-size, x-offset, y-offset): Same. (file, colour-max): Delete (unused) variables. * tests/012/circ.tl (x): Replace defvar with defvarl. * tests/012/stack.tl (stack-limited): Same. * tests/012/struct.tl (s): Same. * tests/013/maze.tl (vi, pa, sc): Delete variables. Use function arguments instead. (usage): Fix typo. * tests/014/dgram-stream.tl (family): Rename to... (*family*): ...this. * tests/014/socket-basic.tl (socktype): Rename to... (*socktype*): ...this. (%iters%): Replace defvar with defvarl.
* stack-limit: bug: not handling RLIM_INFINITY.Kaz Kylheku2021-07-041-6/+9
| | | | | | | | | | | | | | | | * gc.c (gc_init): We must check rlim_cur for the RLIM_INFINITY value indicating unlimited stack, and not misuse this value as a limit number, otherwise hilarity ensues. This reproduced on an older platform with make 3.81, which calls setrlimit to bring about an unlimited stack, passed on to child processes. Because of this txr segfaulted, as a consequence of a false positive. * tests/012/stack.tl (stack-limited): New variable which indicates whether there is a stack limit. If there isn't, we avoid running the fork-based test case. Also, we set the stack limit to 32768 so we have a limit against which to run some of the tests.
* path-search: fix test for sh not being in /bin.Kaz Kylheku2021-07-041-1/+1
| | | | | * tests/018/path-test.tl: Check that the result of a path-search for "sh" only ends in "/bin/sh", not that it is precisely "/bin/sh".
* suffix functions: ignore trailing slashes.Kaz Kylheku2021-07-031-2/+16
| | | | | | | | | | | | | | | | Another requirements tweak to short-suffix and long-suffix: ignore one or more trailing slashes, instead of just one. This harmonizes with base-name, which does same, that requirement being copies from the POSIX basename utility. * stream.c (short_suffix, long_suffix): If sl points to a trailing slash which is the start of a suffix that consists of nothing but trailing slashes, then we pretend it isn't there. * tests/018/path.tl: Adjusted two existing test cases, and added more. * txr.1: Documented.
* compiler: add failing inline lambda tests.Kaz Kylheku2021-07-031-0/+10
| | | | | * tests/012/lambda.tl: Add tests where apply list supplies : values to optional params, which must trigger defaulting.
* tests: support for compiled test forms.Kaz Kylheku2021-07-032-23/+51
| | | | | | | | * tests/common.tl (*compile-test*): New variable. (vtest): Compile cases via compile-toplevel if *compile-test* is true, catching compile-time exceptions. * tests/012/lambda.tl: Set *compile-test* true and repeat file.
* tests: include constp test in compile case.Kaz Kylheku2021-07-021-1/+1
| | | | * tests/012/compile.tl: Add const.tl file.
* tests: simplify file name handling in compile test.Kaz Kylheku2021-07-021-5/+5
| | | | | * tests/012/compile.tl: Remove suffixes from name list, and simplify code.
* lambda: tests.Kaz Kylheku2021-07-021-0/+88
| | | | * tests/012/lambda.tl: New file.
* constantp: tests.Kaz Kylheku2021-07-021-0/+23
| | | | * tests/012/const.tl: New file.
* op: bug in do: must insert @1 into unexpanded form.Kaz Kylheku2021-06-291-0/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | In the case when the do syntax has no metavariables, and it expands as-is without the addition of symbol in the tail position, we are doing something wrong: we are adding the @1 into the expanded version of the form, rather than the original. For instance: 1> (expand '(do pop a)) (lambda (#:arg-1-0017 . #:arg-rest-0016) (prog1 (car a) (sys:setq a (cdr a)) #:arg-1-0017)) Here, the @1 was inserted into the (prog1 ...) form which is the expansion of pop. This is incorrect; it must be inserted into the original (pop a) syntax as (pop a @1). * op.tl (op-expand): In this case when there are no metas and no do-gen that can be replaced by @1 via symacrolet, go back to the original args syntax, add the arg1 meta into that syntax, and process it from the beginning through parallel expansions steps. * tests/012/op.tl: Couple of tests added.
* path-cat: becomes variadic.Kaz Kylheku2021-06-291-0/+32
| | | | | | | | | | | | | * stream.c (path_vcat): New static function. (stream_init): Register path-cat instrinsic to path_vcat rather than path_cat. * tests/018/path.tl: path-cat tests: all examples from documentation, plus others. * txr.1: Documented existing behaviors that were not clear, like when inputs are empty. Documented new variadic semantics. Examples added.
* New function: path-search.Kaz Kylheku2021-06-291-0/+15
| | | | | | | | | | | | * lisplib.c (path_test_set_entries): Autoload on path-search. * stdlib/path-test.tl (path-search): New function. * tests/018/path-test.tl: New file. * txr.1: Documented. * stdlib/doc-lookup.tl: Updated.
* regex-from-trie: correctly handle empty trie.Kaz Kylheku2021-06-271-0/+4
| | | | | | | | | | * filter.c (regex_from_trie): An empty trie matches nothing, so we must return the t regex syntax (match nothing), not nil (match empty string). A hash-based trie matches nothing if it is empty; but if it has user data, then it matches the empty string. * tests/015/trie.tl: Test cases added.
* regex-from-trie: bugs processing compressed trie.Kaz Kylheku2021-06-271-0/+5
| | | | | | | | | | * filter.c (regex_from_trie): If a hash key maps to a string, do not treat that as a trie; it is the value for that node. A value is only a trie if it is a cons or hash. Also, in this case do not make a compound regex. * tests/015/trie.tl: Add duplicate of regex test case using regex from compressed tree.
* regex-from-trie: bugfix: incomplete regex.Kaz Kylheku2021-06-271-1/+1
| | | | | | | | | | * filter.c (regex_from_trie): The code is neglecting to check whether there is a match of the input *at* the given hash table, which is true if it has user data. In that case, the empty regex must be added as a parallel branch. * tests/015/trie.tl: The first regex test case works now. The second one is incorrect and is replaced.
* filter: regex-from-trie produces bad or syntax.Kaz Kylheku2021-06-271-0/+49
| | | | | | | | | | This is not a complete fix yet; the test case still fails. * filter.c (regex_from_trie): The (or ...) operator in the regex language is strictly binary. Do not produce a variable-argument or expression. * tests/015/trie.tl: New file.
* tests: reduce time spent in stack overflow test.Kaz Kylheku2021-06-261-0/+1
| | | | | | * tests/012/stack2.txr: This test case can prove its point in a much smaller stack limit than the one derived from the system default. Let's cut it to 32 kilobytes.
* base-name: bug with empty string suffix.Kaz Kylheku2021-06-261-0/+28
| | | | | | | | * stream.c (base_name): We must check for a zero length suffix, otherwise sub(base, zero, neg(length(suff))) produces an empty string. * tests/018/path.tl: Test cases for base-name.
* suffix functions: requirements change.Kaz Kylheku2021-06-261-22/+22
| | | | | | | | | | | | | | | | | The short-suffix and long-suffix functions will now return the suffix including the leading period. This was a suggestion from user Paul A. Patience, which is a good requirement. Since these functions were newly introduced just the last release, I'm not going to provide backwards compatibility switching for them. * stream.c (short_suffix, long_suffix): Duplicate the suffix starting at the dot, not dot + 1. * tests/018/path.tl: Test cases updated. * txr.1: Documentation updated.
* suffix functions: leading dot is not delimiterKaz Kylheku2021-06-261-13/+23
| | | | | | | | | | * stream.c (short_suffix, long_suffix): Do not treat the starting dot of the last componet as a suffix delimiter. * tests/018/path.tl: Test cases edited to reflect requirements change; new tests added. * txr.1: Updated.
* signals: disable stack overflow in handler.Kaz Kylheku2021-06-241-0/+11
| | | | | | | | | | | * signal.c (sig_handler): For a is_cpu_exception signal, we temporarily disable the stack limit. It might be executing on the sigaltstack buffer, which is almost certainly below the stack limit. * tests/012/stack.tl: New test case. We raise a SIGSEGV and check that in the handler, the stack limit is disabled, and that we can executed code.
* txr: stack protection in pattern language.Kaz Kylheku2021-06-242-0/+9
| | | | | | | | | * txr.c (do_match_line, match_files): call gc_stack_check on entry. * tests/012/stack2.txr: New file. * tests/012/stack2.expected: New file.
* Test for stack overflow protection.Kaz Kylheku2021-06-242-0/+34
| | | | | | * tests/012/stack.tl: New file. * tets/common.tl (mvtest): New macro.
* matcher: new looping macros.Kaz Kylheku2021-06-241-0/+25
| | | | | | | | | | | | | | * lisplib.c (match_set_entries): Autoload on new while-match, while-match-case and while-true-match-case symbols. * share/txr/stdlib/match.tl (while-match, while-match-case, while-true-match-case): New macros. * tests/011/patmatch.tl: Tests. * txr.1: Documented. * share/txr/stdlib/doc-syms.tl: Updated.
* short-suffix, long-suffix: no match across slash.Kaz Kylheku2021-06-221-0/+26
| | | | | | | | | | | * stream.c (short_suffix, long_suffix): Take path separator characters into account; the suffix must not span across separators. The trailing separator must also not appear in the suffix. * tests/018/path.tl: Test cases added. * txr.1: Redocumented.
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