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* Make len a synonym for length.Kaz Kylheku2017-08-072-2/+10
| | | | | | | * eval.c (eval_init): Register the same function under length and len. * txr.1: Documented.
* New spl and tok: variants of tok-str and split-str.Kaz Kylheku2017-08-074-0/+86
| | | | | | | | * eval.c (eval_init): Register spl and tok intrinsics. * lib.c (spl, tok): New functions. * txr.1: Documented.
* tok-str requires two arguments, not just one.Kaz Kylheku2017-08-071-1/+1
| | | | * eval.c (eval_init): Fix incorrect registration of tok-str.
* bugfix: n-ary arith functions must check single arg.Kaz Kylheku2017-08-052-9/+60
| | | | | | | | | | | | | | | | We are allowing calls like (* "a") and (+ "a") without diagnosing that the argument isn't of a valid type. Note that (max "a") is fine beacause min and max use the less function; they are not strictly numeric. * lib.c (nary_op): Beef up function with additional argument for type checking the unary case. (unary_num, unary_arith, unary_int): New static functions. (plusv, mulv, logandv, logiorv): Use new nary_op interface. (gtv, ltv, gev, lev, numeqv, numneq): Check the first number. * lib.c (nary_op): Declaration updated.
* Add sum and prod convenience functions.Kaz Kylheku2017-08-054-0/+60
| | | | | | | | | | * eval.c (eval_init): prod and sum intrinsics registered. * lib.c (sum, prod): New functions. * lib.h (sum, prod): Declared. * txr.1: Documented.
* New functions digpow and digits.Kaz Kylheku2017-08-053-0/+143
| | | | | | | | | | | * arith.c (digcommon): New static function. (digpow, digits): New functions. (arith_init): New digpow and digits intrinsic functions registered. * arith.h (digpow, digits): Declared. * txr.1: New functions documented.
* Bugfix: (sys:expr . atom) bad syntax out of parser.Kaz Kylheku2017-08-021-1/+1
| | | | | | | | | | | | | * parser.y (expand_meta): Fix incorrect conversion of (sys:var x) when x is a non-bindable term to (sys:expr . x). Should be (sys:expr x). This doesn't have that much of an impact, I don't think. It prevent certain degenerate forms from working like @(bind x @"str"). The bad thing is that this particular one has a silent problem: @"str" wrongly evaluates to #\s. Neverheless, this doesn't seem worth the addition of a compat flag test; the odds of someone depending on @"str" producing #\s in some pattern language code see vanishingly low.
* Bi-directional string tree match for non-vars.Kaz Kylheku2017-08-022-2/+40
| | | | | | | | | | | | | | | | | | There is an inconsistency in @(bind) in that given @(bind x y) where x is a variable, both directions are tried for a string tree match. x could be tree of strings and y a string atom, or vice versa. But if x is just an atom, or a Lisp evaluation, then only one direction is tried. @(bind @(list "a" "b") "a") succeeds, but @(bind "a" @(list "a" "b")) fails. * match.c (dest_bind): Test both directions in the scalar and Lisp evaluated cases of the left hand side. Subject to compatibility, just in case. * txr.1: Compat note added.
* doc: aret description refers to ret.Kaz Kylheku2017-08-021-1/+1
| | | | | * txr.1: Fix description of aret, which wrongly refers to the ret macro.
* doc: explain qref and uref.Kaz Kylheku2017-08-021-6/+17
| | | | | * txr.1: Under the qref and uref operators, mention what these stand for and how the terminology is derived.
* doc: note about global symbol macros.Kaz Kylheku2017-08-021-0/+4
| | | | | * txr.1: Adding note that a symbol cannot be a global symbol macro and global variable at the same time.
* doc: missing formatting in qref equivalence.Kaz Kylheku2017-08-021-0/+2
| | | | | * txr.1: equivalence between .(qref ...) and (uref ...) now typeset properly in monospaced font.
* doc: mention listener in Lisp intro.Kaz Kylheku2017-08-021-4/+6
| | | | | | * txr.1: Remove clumsy "firstly, secondly, thirdly" because we need a "fourthly" which is too much. Intro now mentions that Lisp evaluation is also possible via the listener.
* doc: cross reference different #b.Kaz Kylheku2017-08-021-0/+13
| | | | | * txr.1: Note under #b binary number syntax that #b is also used for buffer literals, and vice versa.
* bugfix: spurious nils in pad function's output.Kaz Kylheku2017-08-021-5/+6
| | | | | | * eval.c (pad): Incoming sequence must be nullified, otherwise empty vectors and strings produce a spurious nil. This affects the weave function, which uses pad.
* genvim: ^ is constituent of identifiers.Kaz Kylheku2017-08-011-1/+1
| | | | | * genvim.txr (iskeyword): add ^ character. Now r^ and others are colorized properly.
* Evaluate doloop forms in an implicit tagbody.Kaz Kylheku2017-07-312-12/+22
| | | | | | | | | | This eliminates one incompatibility between doloop and ANSI CL do. * share/txr/stdlib/doloop.tl (sys:expand-doloop): Wrap body in tagbody form. * txr.1: Documentation updated.
* doc: note about label symbols in tagbody.Kaz Kylheku2017-07-311-0/+11
| | | | | * txr.1: Note added that a tagbody label may be any symbol whatsoever.
* Small code cleanup in tagbody.Kaz Kylheku2017-07-311-4/+3
| | | | | | | * share/txr/stdlib/tagbody.tl (tagbody): Reduce unnecessary use of DWIM brackets to parentheses in calculation of bblocks. Remove entry-lbl local variable, propagating its initform to its one and only use site.
* bugfix: tagbody mustn't expose anonymous block.Kaz Kylheku2017-07-301-8/+9
| | | | | | | | * share/txr/stdlib/tagbody.tl (tagbody): Use progn for the trivial case, and in the ordinary case, the sys:for-op special form directly rather than the for loop maro. sys:for-op doesn't introduce a block; the for macro is doing that.
* Optimize trivial tagbody.Kaz Kylheku2017-07-301-35/+37
| | | | | | | | | * share/txr/stdlib/tagbody.tl (tagbody): If the body contains no labels, then emit a simple block. Note that we should just be emitting a progn here; however, there is a bug in tagbody in that there is an anonymous block. This is not documented, and a consequence of the looping construct used. So for now we preserve that behavior in the reduced case.
* listener: handle incomplete buf literals.Kaz Kylheku2017-07-301-1/+23
| | | | | * parser.c (is_balanced_line): Handle #b'...' syntax with some new states and transitions.
* New macros doloop and doloop*.Kaz Kylheku2017-07-303-0/+236
| | | | | | | | | | * lisplib.c (doloop_set_entries, doloop_instantiate): New functions. (lisplib_init): Register autoload for doloop macros. * share/txr/stdlib/doloop.tl: New file. * txr.1: Documented.
* doc: grammar under Ranges.Kaz Kylheku2017-07-291-1/+1
| | | | * txr.1: Superfluous article a deleted, and sentence reworded.
* genvim: flag trailing junk in #x #o #b literals.Kaz Kylheku2017-07-291-9/+14
| | | | | | | | | | | * genvim.txr (txr_pnum): New match; matches a superset of the #x, #o and #b literals with the inclusion of trailing alphanumeric junk. Highlighted as Error. (txr_xnum, txr_onum, txr_bnum): New match categories, formed by renaming the previous #x, #o and #b matches. These are contained in txr_pnum, highlighted as Number. (txr_bracevar, txr_directive, txr_list, txr_bracket, txr_mlist, txr_mbracket): Include txr_pnum.
* doc: struct literals: bad syntax synopsis.Kaz Kylheku2017-07-291-1/+1
| | | | * txr.1: Fix incorrect #H prefix which should of course be #S.
* doc: grammar in setuid section.Kaz Kylheku2017-07-291-1/+1
| | | | * txr.1: anything code -> any code.
* genvim: flag invalid # syntax.Kaz Kylheku2017-07-281-0/+2
| | | | | | | * genvim.txr (txr_error): New match in this category for # followed by something other than H, S or R. Some characters other than these are valid after #, but are covered by explicit matches that occur later.
* genvim: fix buggy tl_ident containing #.Kaz Kylheku2017-07-281-1/+1
| | | | | | | * genvim.txr (tl_ident): Fix the incorrect match which allows things beginning with # to be categorized as identifier tokens. The new match reflects the true original intent: the match must not begin with #, but may contain #.
* genvim: highlight buffer literals.Kaz Kylheku2017-07-281-4/+11
| | | | | | | * genvim.txr (txr_buf_error, txr_buf_interior): New matches. (txr_list, txr_bracket, txr_mlist, txr_mbracket): Now also contain txr_buf. (txr_buf): New region, in the new txr_string matchgroup.
* genvim: bugfix for #x, #o and #b integer tokensKaz Kylheku2017-07-271-3/+3
| | | | | | | * genvim.txr (txr_num): Move the syn match definitions for hex, octal and binary integer tokens after tl_ident, which is a more general match that matches them also, and causes them to be colorized as symbols rather than numbers.
* lib: deprecate set-diff; extend set operations.Kaz Kylheku2017-07-264-20/+164
| | | | | | | | | | | | | | * eval.c (eval_init): Register set-diff under two names: set-diff and diff. Register new isec and uni intrinsics. * lib.c (isec, uni): New functions. * lib.h (isec, uni): Declared. * txr.1: Documented new uni and isec functions, new diff function name, and the deprecation of set-diff and its order guarantee w.r.t the left sequence.
* Version 183.txr-183Kaz Kylheku2017-07-197-928/+984
| | | | | | | | | | * RELNOTES: Updated. * configure, txr.1: Bumped version and date. * share/txr/stdlib/ver.tl: Likewise. * txr.vim, tl.vim, protsym.c: Regenerated.
* doc: fix bad *args-full* heading.Kaz Kylheku2017-07-191-1/+1
| | | | | | | * txr.1: We are missing an "and" in the heading for the section about the *args-full* and related variables. This was caught due to the fix in checkman.txr to handle Special variables sections.
* checkman: verify Special variables sections.Kaz Kylheku2017-07-191-4/+4
| | | | | | * checkman.txr (check-var): This pattern function must handle "Special variable{s,}" sections not only "Variable{s,}".
* doc: log-emerg et al are not special variables.Kaz Kylheku2017-07-191-2/+2
| | | | | * txr.1: the syslog-related constants are global lexical variables and so must not be documented as special variables.
* Named filters now stored in new *filters* hash.Kaz Kylheku2017-07-193-21/+64
| | | | | | | | | | | | | | | | * filter.c (filters): Global variable removed. (filter_s): New symbol variable. (filter_init): Remove gc-protection from removed variable. Intern the *filters* symbol. Use local variable for filters hash, create the *filters* special variable and store the hash into that. * filter.h (filters): Variable declaraton removed. (filters): New macro: expands to an expression designating the current value of *filters* in the dynamic environment. * txr.1: Documented *filters*, adding a forward reference to it from the description of filtering.
* gc: remove assertion from make_obj.Kaz Kylheku2017-07-191-1/+0
| | | | | | | * gc.c (make_obj): remove assertion that the object pulled from the free list is marked FREE. This hasn't proved to be valuable and adds a nonzero cost to a frequently executed path.
* doc: listener: parenthesis matching jumps forward also.Kaz Kylheku2017-07-181-1/+1
| | | | | | * txr.1: Under "Parentheses Matching" correct the introductory sentence which misleadingly claims that parenthesis matching jumps only backwards.
* doc: listener: remove bogus sentence.Kaz Kylheku2017-07-181-2/+1
| | | | | * txr.1: Under "Making a Selection", remove an unclear sentence which contributes nothing.
* doc: ffi out semantics wrongly refers to in semantics.Kaz Kylheku2017-07-181-1/+1
| | | | | | * txr.1: of course, the out operation of a type recursively invokes the out operation on embedded pointers, not the in operation.
* doc: *trace-output* font.Kaz Kylheku2017-07-181-1/+1
| | | | | * txr.1: Special varaible *trace-output* not typeset in typewriter font in heading.
* doc: no such method as lambda-ref.Kaz Kylheku2017-07-181-1/+1
| | | | | * txr.1: Under description of length function, reference to nonexistent lambda-ref should be lambda-set.
* doc: no such function as make-bufferKaz Kylheku2017-07-181-1/+1
| | | | | * txr.1: In description of buffer literal syntax, reference to make-buffer should be make-buf.
* doc: no ffi type operator "bits".Kaz Kylheku2017-07-181-2/+2
| | | | | * txr.1: Under description of bool, fix references to nonexistent (bits n type).
* find, pos: optimize and support objects properly.Kaz Kylheku2017-07-181-21/+114
| | | | | | | | | | | * lib.c (find, pos): Provide specialized behavior based on type and test and key functions. Lists and list-like objects are treated by marching down with cdr. Vectors are traversed with numeric index, as are vector-like objects which exhibit a length function. A special optimization is put in for non-lazy strings which use identity as their key function, and one of the built-in equality operators for the test function: wcschr is used on the underlying C string.
* new function: nthKaz Kylheku2017-07-185-0/+44
| | | | | | | | | | | | | | | | Just the ANSI CL nth for lists. * eval.c (eval_init): Register nth intrinsic. * lib.c (nth): New function. * lib.h (nth): Declared. * share/txr/stdlib/place.tl (nth): New place macro, trivially takes care of making nth an accessor. Place macros are terrific! * txr.1: Documented.
* new function: path-catKaz Kylheku2017-07-183-0/+125
| | | | | | | | | * stream.c (path_cat): New function. (stream_init): Registered path_cat. * stream.h (path_cat): Declared. * txr.1: Documented.
* remove-path: exception semantics adjusted.Kaz Kylheku2017-07-172-8/+14
| | | | | | | | | | | | * stream.c (remove_path): The second argument now defaults to false rather than true, and controls only whether an exception is thrown in the non-existence case. Thus, the function throws errors by default, as before, but doesn't throw by default if the failure reason is that the path doesn't exist. Previously it threw by default in all situations, and the flag turned all errors into a nil return. * txr.1: Documented.
* lib: new function, relate.Kaz Kylheku2017-07-174-0/+85
| | | | | | | | | | | * eval.c (eval_init): Register new intrinsic relate. * lib.c (do_relate, do_relate_dfl): New static functions. (relate): New function. * lib.h (relate): Declared. * txr.1: Documented.
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