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* repl: bugfix: half-baked source auto loading in completion.Kaz Kylheku2021-10-251-5/+6
| | | | | | | | | | | | | | | | | | | | | | | The following behavior is observed. When we clean the compiled files using "make clean-tlo", then autoloading during completion does not work reliably for some symbols like dissassemble and compile. The symbols don't complete, and afterward, the functions remain undefined, and no longer autoload. The root cause is that when some modules are loaded form source, deferred warnings occur, due to code referring to symbols that are defined later. But the provide_completions function installs a catch for all exceptions, including deferred warnings. It thereby abruptly terminates loads which trigger deferred warnings, leaving them half-complete. The fix is to catch only errors. * parser.c (catch_error): New global variable. (load_rcfile): Use catch_error from now on instead of locally consing this. (provide_completions): Use catch_error instead of catch_all. (parse_init): gc-protect catch_error and initialize it.
* random: new function random-float-incl.Kaz Kylheku2021-10-253-2/+70
| | | | | | | | | | | | This function includes the 1.0 value excluded by random-float. * rand.c (random_float_incl): New static function. (rand_init): Register random_float_incl intrinsic. * txr.1: Document, and add discussion about uniformity requirements and what they mean and do not mean. * stdlib/doc-syms.tl: Updated.
* ffi: implement in-semantics for carray, cptr.Kaz Kylheku2021-10-243-10/+117
| | | | | | | | | | | | | * ffi.c (ff_cptr_in, ffi_carray_in): New static functions. (ffi_type_compile): Wire in new functions for dynamically compiled cptr and carray types. (ffi_init_types): Also, wire in ffi_cptr_in function for the non-parametrized cptr type. (carray_set_ptr): New function. * ffi.h (carray_set_ptr): Declared. * txr.1: Documented.
* compiler: improvement in wasteful jmp elimination.Kaz Kylheku2021-10-232-5/+31
| | | | | | | | | | | | | | | * stdlib/compiler.tl (compiler optimize): After the dataflow-driven peephole optimization, call elim-dead-code again. * stdlib/optimize.tl (basic-blocks check-bypass-empty): New method. (basic-bocks elim-dead-code): After eliminating unreachable blocks from the list, we use check-bypass-empty to squeeze out any empty blocks: blocks that have no instructions in their list, other than the leading label. This helps elim-next-jmp to find more opportunities to eliminate a wasteful jump, because sometimes these jumps straddle over empty blocks. Furthermore, elim-next-jmp can generate more empty blocks itself; so we check for this situation, delete the blocks and iterate.
* compiler: also clear .next before re-linking graph.Kaz Kylheku2021-10-231-0/+1
| | | | | | | | | | | * stdlib/optimize.tl (basic-blocks elim-dead-code): When clearing the links before recalculating the graph, also clear the next field of every block, because link-graph only sets this if necessary, assuming that the value is already nil. Thus by not resetting it, we risk leaving stale values in these .next fields. The code reachability calculation relies on next fields, so if they falsely point to dead blocks, those blocks could be falsely retained.
* parser: bugfix: #; at front of list.Kaz Kylheku2021-10-232-218/+222
| | | | | | | | | | | | | | | | | | | The parser wrongly reads #(#; abc) as (nil) instead of (), and related cases derived from this one are all likewise wrong. A number of tests added in the previous commit target this and fail. They are hereby fixed. * parser.y (listacc): In the productions that begin with HASH_SEMI, do not produce a (nil . nil) leading cons, but a (nao . nil) leading cons; so the fact that the first item is commented out is represented by a nao in the car field of the leading cons. (n_exprs): If the first element of the list produced by the listacc grammar symbol is nao, then pop it off. Thereby, we lose the spurious nil that we previously had there left by the commented-out item. * y.tab.c.shipped: Updated.
* syntax: add tests for #; syntax.Kaz Kylheku2021-10-231-0/+12
| | | | * tests/012/syntax.tl: New tests, some of which fail.
* compiler: fix failing load-time tests.Kaz Kylheku2021-10-221-2/+1
| | | | | | | | | | | * stdlib/compiler.tl (usr:compile-toplevel): Do not bind *load-time* to t at the top level. The idea behind this binding was to treat load-time as a transparent form that does nothing if it occurs in the top-level since the top-level is already at load-time. However, this is problematic because it breaks the expectation that load-time calculations are factored out of a form and done prior to its evaluation, even if that form is top-level.
* load-time: new tests.Kaz Kylheku2021-10-221-0/+30
| | | | | | Add three tests; the first and third fail. * tests/019/load-time.tl: New file.
* ffi: deffi, deffi-cb: eliminate generated globals.Kaz Kylheku2021-10-221-31/+21
| | | | | | | | | | | | | | | | | | | The immediate problem is that with-dyn-lib creates a defvarl, but deffi uses load-time forms to refer to that. In compiled code, these load-time evaluations will occur before the defvarl exists. The conceptual problem is that with-dyn-lib might not be a top-level form. It can be conditionally executed, as it happens in stdlib/doc-syms.tl, which is now broken. Let's not use load-time, but straight lexical environments. * stdlib/ffi.tl (with-dyn-lib): Translate to a simple let which binds sys:ffi-lib as a lexical variable. (sys:with-dyn-lib-check): Use lexical-var-p to test what sys:ffi-lib is lexically bound as a variable. (deffi, sys:deffi-cb-expander): Instead of gloval defvarl variables, bind the needed pieces to lexical variables, placing the generated defun into that scope.
* ffi: take advantage of hardware unaligned access.Kaz Kylheku2021-10-201-0/+11
| | | | | | | | | * ffi.c (align_sw_get, align_sw_end, align_sw_put_end, align_sw_put): On Intel, PowerPC and also on ARM if certain compiler options are in effect (set by the user building TXR, not us), define these macros to do nothing. This shrinks and speeds up all the functions which use these macros for handling unaligned accesses.
* path-equal: enable and fix failing tests.Kaz Kylheku2021-10-202-5/+5
| | | | | | | | | * stdlib/copy-file.tl (path-simplify): If the incoming path's first component is "", it is absolute; in that case swallow any components that go above. * tests/018/path-equal.tl: Uncomment two previously failing tests.
* doc: document (...) pic patternsKaz Kylheku2021-10-201-21/+58
| | | | | | * txr.1: Document the parenthesized pattern notation for obtaining a negative number with parentheses. Also putting the escape syntax first, because it's a short section.
* pic: support parenthesis negative notation.Kaz Kylheku2021-10-192-4/+41
| | | | | | | | | | * pic.tl (add-neg-parens): New system function. (expand-neg-parens): New macro. (expand-pic): New numeric pattern with parentheses. Also suport escaping of parentheses. (pic): Recognize parenthesized numeric pattern here also. * tests/018/format.tl: New tests.
* pic: digit separator tests.Kaz Kylheku2021-10-181-0/+24
| | | | * tests/018/format.tl: New test cases.
* pic: bug: handle ! in digit separator logicKaz Kylheku2021-10-181-1/+1
| | | | | * stdlib/pic.tl (comma-positions): Must also look for ! point if the . point is not found.
* pic: preserve decimal period in ### overflow fill.Kaz Kylheku2021-10-183-8/+29
| | | | | | | | | | | | | | | | | | * pic.tl (expand-pic-num): If the overflowing field specifies a decimal point other than in the rightmost position, then stick one into the fill pattern. The motivation for this is that it harmonizes with the digit separators. The new digit separator insertion logic will treat the # characters like digits, and requires the embedded decimal in order to work properly. Allowing digit separation to work in the fill pattern will make for better looking output in column displays. That's the same reason why we insert digit separators among leading zeros. * tests/018/format.tl: Overflow test cases updated in light of this requirement change. * txr.1: Documented.
* doc: doc-syms refresh.Kaz Kylheku2021-10-181-0/+1
| | | | * stdlib/doc-syms.tl: Updated.
* pic: new feature: digit-separating commas.Kaz Kylheku2021-10-182-6/+83
| | | | | | | | | | | | | | | | This allows for pic patterns like #,###,###.### which incorporate digit separating commas into the output. * stdlib/pic.tl (comma-positions, insert-commas, expand-pic-num-commas): New system functions. (expand-pic): Recogize comma as a character which can be escaped using the tilde. Recognize a more complicated numeric pattern with commas. If the matched token contains commas, treat it using expand-pic-num-commas. (pic): Propagate a copy of the new numeric pattern here, where it is used for separation into tokens. * txr.1: Documented.
* quips: five new ones: quippy day today.Kaz Kylheku2021-10-151-0/+5
| | | | | * stdlib/quips.tl: New quips about rights, Lisp smugness, macros and Reddit.
* printer: bug: fallback syms printed without prefix.Kaz Kylheku2021-10-125-8/+49
| | | | | | | | | | | | | | | | | | | | | | | | | | This is a basic read/print consistency problem. When a symbol is printed that is anywhere in the fallback list of the current package, we are dumping it unqualified, even if it is hidden by a same-named symbol in the current package itself or such a symbol occurring earlier in the fallback list. * lib.c (symbol_needs_prefix): When the to-be-printed symbol is found in the fallback list, re-scan the current package for a symbol having the same name, as well as the preceding nodes in the fallback list. If such a symbol is found, then the to-be printed symbol must be package-qualified. * tests/012/syms.expected: New file. * tests/012/syms.tl: Likewise. * tests/012/compile.tl: Pull syms into compile job. * txr.1: Clarify text about this. The existing text's only reasonable interpretation supports the behavior which this patch ensures (which is needed on grounds of read/print consistency) but the text lacks precision.
* path-equal: propagate fixes from rel-path.Kaz Kylheku2021-10-111-12/+10
| | | | | | | * stdlib/copy-file.tl (path-equal): This function is based on rel-path and so suffers the same bugs. Retarget it to use the new functions and approach to volumes from rel-path, so it benefits from the fixes.
* rel-path: multiple bugs for native Windows.Kaz Kylheku2021-10-111-21/+55
| | | | | | | | | | | | | The first bug is that we are using the spl function with pat-sep-chars. But spl does not take a set of characters; we need the sspl function. Other bugs are handling drive letters or UNC paths properly on Windows. * stdlib/copy-file.tl (path-split, path-volume): New functions. (rel-path): Split path properly. Diagnose for all bad combinations of mismatching absolute/relative paths with or without a volume or incompatible volumes.
* New path-equal function.Kaz Kylheku2021-10-104-0/+101
| | | | | | | | | | * lisplib.c (copy_file_set_entries): Add path-equal to autoload symbols. * stdlib/copy-file.tl (path-equal): New function. * tests/018/path-equal.tl: New file. * txr.1: Documented.
* rel-path: refactor, fix diagnostic message.Kaz Kylheku2021-10-101-32/+29
| | | | | | | * stdlib/copy-file.tl (path-simplify): New function. (rel-path): Get rid of macrolet by using macro-time expression; remove flet since canon is now path-simplify at the top level. Fix diagnostic.
* math: two bad edge cases in double_uintptr_t conversion.Kaz Kylheku2021-10-092-4/+30
| | | | | | | | | | | | | | | | | | | | | | | | This fixes two failing test cases introduced in the parent commit. * arith.c (c_dbl_unum): Here, what is wrong that if the incoming value is a CHR or NUM, we just convert it to a signed cnum, and return that value. The problem with this is that negative values are supposed to be out of range for double_uintptr_t. We now check for negative and route to the out-of-range error. * mpi/mpi.c (s_mp_in_big_range): Here, the edge case of handling the most negative two's complement value is incorrectly coded. We replace the logic by a simple test for that exact special case. If a negative bignum being tested whether it fits into the signed double_intptr_t, then we check whether its mantissa has the 0x80..00 bit pattern. That is the only value greater than 0x7F..FF that is still in range, so we return 1 for that case. We remove the bogus subtraction (top - neg). After handling the above special value, we just need to look whether the most significant word of the bignum is 0x7F...FF or lower.
* ffi: fix broken range checks in enumed type.Kaz Kylheku2021-10-092-25/+76
| | | | | | | | | | | | | Reported by Paul A. Patience. * ffi.c (make_ffi_type_enum): Do not use the cnum native type for doing the member value calculations. Work with Lisp numbers, and verify their range by passing them into the put function of the underlying integer type. Duplicated code is merged, too. * tests/017/ffi-misc.tl: New tests. Two 64 bit ones fail due to conversion bugs.
* ffi: remove useless locals from enum constructor.Kaz Kylheku2021-10-091-8/+1
| | | | | * ffi.c (make_ffi_type_enum): the variables lowest, highest and count do not serve any purpose; they are hereby removed.
* ffi: insufficient format args in enum error handling.Kaz Kylheku2021-10-091-2/+2
| | | | | * ffi.c (make_ffi_type_enum): Add missing argument to two uw_throwf calls. Reported by Paul A. Patience.
* ffi: C++ upkeep.Kaz Kylheku2021-10-081-3/+3
| | | | | | * ffi.c (sock_opt, sock_set_opt): Fix a few integer conversions to use convert (mapping to static_cast) rather than coerce (reinterpret_cast).
* Version 271.txr-271Kaz Kylheku2021-10-057-1351/+1435
| | | | | | | | | | | | | | * RELNOTES: Updated. * configure (txr_ver): Bumped version. * stdlib/ver.tl (lib-version): Bumped. * txr.1: Bumped version and date. * txr.vim, tl.vim: Regenerated. * protsym.c: Likewise.
* unix: fix sock-opt test case.Kaz Kylheku2021-10-051-2/+2
| | | | | | | | | | | | | | | On systems with true Unix heritage, like Solaris, MacOS/Darwin, and undoubtedly various BSDs, getsockopt is returning a bitmask value for some options , rather than 1. For instance if we enable SO_REUSEADDR, and then read back the value of the option, we get 4 and not 1. This is because the value of the SO_REUSEADDR symbol itself is 4; it is a mask. The kernel code is evidently just masking out the desired option out of the option mask, and returning the mask value without reducing it to 0 or 1. * tests/014/socket-misc.tl: Test the result of sock-opt for nonzero using nzerop rather than testing specifically for 1.
* cygwin: environment-related fixes.Kaz Kylheku2021-10-052-15/+16
| | | | | | | * stream.c (run): replace_env takes only one argument. * tests/018/process.tl: *child-env* tests are reporting some extra environment variables on Windows; let's just disable them.
* awk: :fields specifies conversions.Kaz Kylheku2021-10-044-74/+185
| | | | | | | | | | | | | | | | | | | | | | | | | | | | * stdlib/awk.tl (sys:awk-compile-time): Slot field-names renamed to field-name-conv. (sys:awk-expander): Parse the new syntax which allows (sym fn) pairs with optional fn, creating a list of normalized items in the field-name-conv slot of the compile-time structure. (sys:awk-symac-let): Adjust the code to the pair representation in field-name-conv. (sys:awk-field-name-code): New function for generating the field conversion code. (awk): Now that we have two optional pieces of code to wrap around p-actions form, we factor that out of the awk-lambda, to a series of conditional assignments. Here we handle the generation of the field conversionns. * conv.tl (sys:conv-expand-sym): New macro, used in sys:awk-field-name-code and sys:conv-let. (sys:conv-let): Simplify with sys:conv-expand-sym. Drop optional argument from i; it connects with no documented feature, and is not usable from fconv. * tests/015/awk-fields.tl: New tests. * txr.1: Updated, including cruft in fconv documentation. Change-Id: Ie42819f58af039fdbcdb1ae365c89dc1add55c93
* doc: fix trivial typos and stylistic issues.Paul A. Patience2021-10-041-73/+71
| | | | * txr.1: Fix typos and stylistic issues.
* doc: fix refs to inexistent fill- and put-array.Paul A. Patience2021-10-041-8/+8
| | | | | | | * txr.1: fill-array -> fill-carray, put-array -> put-carray. Refer to fill-buf and put-buf with .code (or .codn). Use .code when referring to a carray object rather than an argument called carray.
* exceptions: fix leftover uw_throwfs with errno.Paul A. Patience2021-10-042-6/+6
| | | | | | * ffi.c (mmap_wrap, mmap_op): Switch to uw_ethrowf. * sysif.c (getresgid_wrap): Same.
* ffi: add cptr-carray function.Paul A. Patience2021-10-024-0/+47
| | | | | | | | | | | * ffi.c (cptr_carray): New function. (ffi_init): Register cptr-carray intrinsic. * ffi.h (cptr_carray): Declared. * txr.1: Documented. * stdlib/doc-syms.tl: Updated.
* awk: new :fields feature for named fields.Kaz Kylheku2021-10-013-30/+100
| | | | | | | | | | | | | * stdlib/awk.tl (sys:awk-compile-time): New slot, field-names. (sys:awk-expander): Validate and store field-names into compile-time structure. (sys:awk-symac-let): New macro. (awk): Wrap sys:awk-symac-let around code to generate field name macros. * tests/015/awk-fields.tl: New file. * txr.1: Documented.
* compiler: peephole: recalc and rescan in a few more cases.Kaz Kylheku2021-09-301-0/+9
| | | | | | * stdlib/optimize.tl (basic-block peephole-block): In a few more cases, we should be setting the recalc flag to recalculate liveness, and adding some block to the rescan list.
* compiler: fix up linkage and recalc liveness in one peephole case.Kaz Kylheku2021-09-301-8/+11
| | | | | | | | * stdlib/optimize.tl (basic-blocks peephole-block): Rearrange the code a bit so we don't calculate the xbl, which potentially performs the cut-block, if there is no ybl. We set the bb.recalc flag since we may have cut a block into two and have redirected a jump, and also update the links for that reason.
* compiler: eliminate some redundant hash lookups.Kaz Kylheku2021-09-301-11/+12
| | | | | | | * stdlib/optimize.tl (basic-blocks thread-jumps-block, basic-blocks peephole-block): Streamline various cases of [bb.hash jlabel] being wastefully called twice to look up the same block referenced by the same label.
* compiler: eliminate basic-block next-block method.Kaz Kylheku2021-09-301-23/+19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | The next-block method performs a linear search through the basic block list, which is physically ordered, to find the physically next block. This is actually not needed in several places that use the method; they want the logically next block, which is nil if the last instruction of the current doesn't potentially fall through to the next block. In the one place where we need the physical next block, in the elim-next-jump method, the caller can dynamically provide this, since it walks the list. * stdlib/optimize.tl (basic-block next-block): Method removed. (basic-block link-graph): We revise the logic here a little bit. All of the cases now consistently use the mechanism of setting link-next to nil to indicate that they don't fall through to the next block. The special case handling of the close instruction is clearer. (basic-block (thread-jumps-block, peephole-block)): Several cases here referred to the physically next block via the next-block method. This can be replaced by just using the next pointer, which will be the same. (basic-blocks elim-next-jump): This method now takes the next block as an argument, since there is no next-block method it can call to get the physcally next block. The argument is guaranteed non-null, so we don't need the .? null-safe slot access syntax. (basic-blocks elim-dead-code): Iterate over the next blocks simultaneously, and pass the next block into elim-next-jump. We no longer iterate over the last block, which has no physical next block.
* compiler: cosmetic: merge set assignments.Kaz Kylheku2021-09-301-7/+7
| | | | | | * stdlib/optimize.tl (basic-blocks join-block): Merge set forms into one. (basic-blocks elim-dead-code): Likewise.
* compiler: improvement in next-block linking.Kaz Kylheku2021-09-291-3/+3
| | | | | | | * stdlib/optimize.tl (basic-blocks link-graph): Do not search the entire list for a block's successor. Iterate over the cdr of the list in parallel, so that the next block is directly available at each iteration.
* compiler: remove impossible cases in jump threading.Kaz Kylheku2021-09-291-8/+4
| | | | | | | | | | | | | | * stdlib/optimize.tl (basic-blocks thread-jumps-block): There can't be any instructions in a basic block after an if or ifq, so in these cases, jrest is always nil. Let's ignore that nil efficiently with @nil, and get rid of the cut-block branches of the code. There is a similar case in peephole-block, but the target of the jump is an (end ...) which doesn't necessarily end a basic block. I temporarily put in an (assert (null jrest)), and, surprisingly, it never went off during a rebuild of the library or running of the test case. Still, only a jend ends a basic block; it would not be correct to simplify it like these two cases in thread-jumps-block.
* compiler: peephole: merge basic blocks when jmp removed.Kaz Kylheku2021-09-291-5/+16
| | | | | | | | | | | | | | | | | | | | | | | | | | | When a jmp instruction is removed from (necessarily) the end of a basic block, that basic block can be merged with the next one, and marked for re-scanning. A test case where this eliminates wasteful register-register move instruction is (match #(@a) #(3) a). * stdlib/optimize.tl (basic-blocks): New slot, tryjoin. (basic-blocks join-block): Null out the instruction list of the joined block. This helps if we do this during peephole processing, because it happens in the middle of an iteration over a list of blocks which can still visit the next block that has been merged into its predecesor; we don't want to be processing instructions that are no longer relevant. (basic-blocks peephole-block): In the one case where a conditional instruction is deleted from the end of the basic block, we add the block to the rescan list, and also to the tryjoin list. If the block can be merged with the next one, that can create more opportunities for peephole optimization. (basic-blocks peephole): Use zap in a few places to condense the logic of sampling a state variable that needs to be nulled out. Add the processing of the tryjoin list: pop basic blocks from the list, and try to merge them with their successor, if possible. We handle cases here where the next block could itself be in tryjoin. Also, if we join any blocks, we set the recalc flag to recalculate the liveness info.
* compiler: code clean-up in peephole optimizer.Kaz Kylheku2021-09-281-5/+5
| | | | | | | | | | | * stdlib/optimize.tl (basic-blocks peephole-block): When we match a branching instruction, including jend, we know that's the end of the basic block. So there is no need to splice the (rest insns) into the output; let's get rid of that. On the other hand, there is also no need to have a specific pattern match for the end of the list such as ((jmp @label)). This costs extra cycles to validate. Let's consistently match these basic-block terminating instructions using prefix patterns like ((jmp @label) . @nil)).
* quantile: fix test needing nonportable amount of precision.Kaz Kylheku2021-09-272-11/+14
| | | | | | | | | | | | | | * tests/common.tl (sstest): New macro. Like stest, but the right hand side is an object which the macro turns to a string, rather than expecting a string. * tests/016/arith.tl: Use the sstest macro for the main quantile test to compare the result and expected value as character strings rather than objects. Specify the expected values using no more than 14 decimal digits of precision, and over the scope of the test case, restrict floating-point printing to 14 digits. Thus, we effectively have quick and dirty epsilon comparison to 14 digits that recurses over the list, without having to write that as a function.
* quips: one in French.Kaz Kylheku2021-09-261-0/+1
| | | | * quips.tl: New quip.
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