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* If one of the blocks which are subordinate to a @(trailer)Kaz Kylheku2012-03-311-0/+30
| | | | | | | | | | | | | | | | | | | | | happen to request a successful termination by invoking @(accept) the position must not advance into the trailer material. * match.c (v_trailer): Added an unwind protect which detects that an accept is taking place and adjusts the return value to restrict the input position at the point given to trailer. (accept_fail): Use uw_block_return_proto instead of uw_block_return and pass the symbol as the protocol identifier. * unwind.c (uw_current_exit_point): New function. (uw_block_return): Function renamed to uw_block_return_proto; takes new parameter which is stored in the block structure. * unwind.h (struct uw_block): New member, protocol. (uw_block_return): Becomes an inline wrapper for uw_block_return_proto. (uw_block_return_proto, uw_current_exit_point): Declared. * txr.1: Interaction between @(trailer) and @(accept) documented.
* * match.c (h_var): Disallow the variable named by the symbol tKaz Kylheku2012-03-301-0/+12
| | | | | | | | by throwing an exception. Allow nil, but wherever nil occurs, do not produce a binding. * txr.1: State the restrictions against using t in the section on Variables and also describe the nil ignore feature.
* * txr.1: Correction: backtracking does NOT take place into a blockKaz Kylheku2012-03-301-3/+3
| | | | which completed.
* * txr.1: Documenting the debugger with an example session.Kaz Kylheku2012-03-301-0/+192
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* Version 63txr-63Kaz Kylheku2012-03-301-2/+2
| | | | | | | | | | * txr.c (version): Bumped. * txr.1: Bumped version and set date. * configure (txr_ver): Bumped. * RELNOTES: Updated.
* * lib.c (num_str): Much more accurate test for deciding whetherKaz Kylheku2012-03-301-4/+41
| | | | | | | | | to treat the number as floating or integer. We can't just look for the presence of E, e or . because these coudl be part of trailing junk for instance "123XYZE." should convert to the integer 123, where "XYZE." is trailing junk. * txr.1: Documented int-str, flo-str and num-str.
* * lib.c (min2, max2): Semantics tweak. If the numbers are equal,Kaz Kylheku2012-03-291-0/+25
| | | | | | favor the left one. * txr.1: Documented min and max.
* * arith.c (numeq): New function.Kaz Kylheku2012-03-291-5/+131
| | | | | | | | | | | | | | | | | (exptmod): Bugfix: was no normalizing the bignum, ouch. Also was reporting "non-integral operands" for other errors. * eval.c (eval_init): Registered = intrinsic function. * lib.c (numeqv): New function. * lib.h (numeq, numeqv): Declared. * txr.1: Documented expt, sqrt, isqrt, exptmod, fixnump, bignump, integerp, floatp, numberp, zerop, evenp, oddp, >, <, >=, <= and =. * txr.vim: Highlight =
* * arith.c (gcd): Allow zeros. Don't issue "non-integral"Kaz Kylheku2012-03-291-1/+92
| | | | | | | | | | | | | | | exception if MPI fails. (floorf, ceili): Map integer argument to itself. (tang, asine, acosi): New functions. * eval.c (eval_init): New intrinsics: tan, asin, acos. * lib.h (tang, asine, acosi): Declared. * txr.1: Documented gcd, abs, floor, ceil, sin, cos, tan asin, acos, atan, log, and exp. * txr.vim: Highlighting for tang, asine, acosi.
* * arith.c (dmod): New static function.Kaz Kylheku2012-03-291-4/+34
| | | | | | | | (mod): Use dmod instead of fmod directly, to calculate the correct semantics for combinations of negative operands in the floating point domain also. * txr.1: Documented /, trunc and mod.
* * txr.1: Documented +, - and *.Kaz Kylheku2012-03-291-1/+69
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* * txr.1: num-str added to doc stub.Kaz Kylheku2012-03-291-1/+1
| | | | * txr.vim: num-str added.
* * eval.c (eval_init): New intrinsic num-str registered.Kaz Kylheku2012-03-261-5/+34
| | | | | | | | | | | | | | | * filter.c (tonumber_k, tointeger_k, tofloat_k, hextoint_k): New keyword variables. (filter_init): New variables initialized; new filters registered. * filter.h (tonumber_k, tointeger_k, tofloat_k, hextoint_k): Declared. * lib.c (num_str): New function. * lib.h (num_str): Declared. * txr.1: New filters documented.
* * lib.c (rebind_s): New symbol variable.Kaz Kylheku2012-03-241-3/+37
| | | | | | | | | | * lib.h (rebind_s): Declared. * match.c (v_rebind): New static function. (dir_tables_init): Registered rebind_s to v_rebind, and also to hv_trampoline in the horizontal directive table. * txr.1: Documented it.
* * eval.c (eval_init): Register match-str and match-str-treeKaz Kylheku2012-03-241-0/+4
| | | | | | | | | | intrinsics. * lib.c (match_str, match_str_tree): Default position to zero. * txr.1: Doc stubs created. * txr.vim: Highlighting for match-str and match-str-tree.
* Version 62txr-62Kaz Kylheku2012-03-231-2/+2
| | | | | | | | * txr.c (version): Bumped. * txr.1: Bumped version and set date. * configure (txr_ver): Bumped.
* * RELNOTES: Updated.Kaz Kylheku2012-03-231-2/+48
| | | | * txr.1: Describe floating-point constants.
* * arith.c (expo): New function.Kaz Kylheku2012-03-221-1/+1
| | | | | | | | | | * eval.c (eval_init): expo registered as intrinsic exp. * lib.h (expo): Declared. * txr.1: Added to stub heading. * txr.vim: Highlighting for exp.
* Fix sqrt confusion. There must be a separate isqrtKaz Kylheku2012-03-221-2/+6
| | | | | | | | | | | | | | | | | for the integer square root. * arith.c (sqroot_fixnum): Renamed back to isqrt_fixnum. (sqroot): Rewritten to handle only floating-point square root. (isqrt): New function, based on previous sqroot, handles only integers. * eval.c (eval_init): New intrinsic, isqrt. * lib.h (isqrt): New declaration. * txr.1: Doc stubs. * txr.vim: Highlighting for isqrt.
* * arith.c (floorf, ceili, sine, cosi, atang, loga): New functions.Kaz Kylheku2012-03-221-0/+2
| | | | | | | | | | | * eval.c (eval_init): New intrinsic functions registered: floor, ceil, sin, cons, atan, log. * lib.h (floorf, ceili, sine, cosi, atang, loga): Declared. * txr.1: Doc stub section for new functions. * txr.vim: Highighting added.
* * arith.c (divi): New function.Kaz Kylheku2012-03-211-1/+1
| | | | | | | | | | * eval.c (eval_init): divi registered as / intrinsic. * lib.h (divi): Declared. * txr.1: divi added to stub heading. * txr.vim: / operator highlighted.
* * txr.1: Doc stubs for new functions floatp, integerp,Kaz Kylheku2012-03-211-2/+4
| | | | | | float-str, int-flo and flo-int. * txr.vim: Highlighting for new functions.
* * eval.c (eval_init): url_decode has two parameters now,Kaz Kylheku2012-03-181-4/+14
| | | | | | | | | | | | | | | | | | so we make the second one optional. * filter.c (topercent_k, frompercent_k): New keyword variables. (url_encode, url_decode): Take a second parameter, space_plus. This determines whether or not to apply the rule that a space encodes as a + character. (filter_init): Initialize new keyword variables, and register :topercent and :frompercent filters. Fix the previous registrations of :tourl and :fromurl using currying. * filter.h (urlencode, urldecode): Declarations updated. (topercent_k, frompercent_k): Declared. * txr.1: Documented.
* * eval.c (eval_init): New intrinsic functionsKaz Kylheku2012-03-161-0/+6
| | | | | | | | | | | | | | | | | | chain, andf, orf, iff. * lib.c (chainv): New function. (do_and, do_or): Generalized to handle functions of any arguments via apply. (andf, orf): Turn do_and and do_or into variadic function instead of a monadic function. (do_iff): New static function. (andv, orv, iff): New functions. * lib.h (chainv, andv, orv, iff): New functions declared. * txr.1: Doc stubs created. * txr.vim: Updated.
* Formatting fix.Kaz Kylheku2012-03-161-3/+1
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* Version 61txr-61Kaz Kylheku2012-03-151-2/+2
| | | | | | | | | | | | | | | | | | | | | * txr.c (version): Bumped. * txr.1: Bumped version and set date. * configure (txr_ver): Bumped. * eval.c (op_modplace): Fix warning about uninitialized variable. No bug. * filter.c: gcc compilation regresion: missing <stdio.h> breaks inclusion of "stream.h" header. Strangely, didn't show up when configured for compiling with g++ on Ubuntu. * match.c (match_filter): Fixed ununsed variable warning. * txr.vim: Bunch of missing keywords added. * dep.mk: Regenerated.
* * txr.1: Documented hash and vector quasiliterals.Kaz Kylheku2012-03-141-2/+45
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* Implementing #H((...) ...) read/print syntax for hash tables.Kaz Kylheku2012-03-141-1/+13
| | | | | | | | | | | | | | | | * hash.c (print_key_val, hash_print_op): New static functions. (hash_ops): hash_print_op wired in in place of cobj_print_op. * parser.l (HASH_H): New token recognized. * parser.y (HASH_H): New terminal symbol. (hash): New nonterminal symbol. (expr): Acquires hash as a constituent. (hash_from_notation): New static function. * txr.1: Hash syntax described. * txr.vim: Updated.
* Change: @(block) requires @(end) from now on.Kaz Kylheku2012-03-131-21/+80
| | | | | | | | | | | | | | | | | | | Blocks no longer extend to the end of the surrounding scope. * match.c (v_block): Rewrite for new syntax. * parser.l (BLOCK): New token type handled. * parser.y (BLOCK): New token. (block_clause): New nonterminal grammar symbol. (clause): Collateral fix: replaced a bunch of list(X, nao) forms with cons(X, nil). Introduced block_clause as a constituent of clause. * txr.1: Revamped documentation of block, and wrote about using blocks for reducing nested skips and reducing backtracking in general.
* Implementing URL filtering.Kaz Kylheku2012-03-131-0/+21
| | | | | | | | | | | | | | | | * eval.c (eval_init): New intrinsic functions: url-encode, url-decode. * filter.c (tourl_k, fromurl_k): New keyword variables. (is_url_reserved, digit_value): New static functions. (url_encode, url_decode): New functions. (filter_init): Intialize new keyword variables and register new :tourl and :fromurl filters. * filter.h (tourl_k, fromurl_k, url_encode, url_decode): Declared. * txr.1: Updated. * txr.vim: Likewise.
* Fix brace/paren mismatch.Kaz Kylheku2012-03-051-1/+1
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* * eval.c (eval_init): New intrinsic function, regsub.Kaz Kylheku2012-03-041-0/+2
| | | | | | | | * regex.c (regsub): New function. * regex.h (regsub): Declared. * txr.1: Doc stub added.
* Version 60Kaz Kylheku2012-03-041-2/+2
| | | | | | | | | | | | | | | | | | | * txr.c (version): Bumped. * txr.1: Bumped version and set date. * configure (txr_ver): Bumped. * RELNOTES: Updated. * txr.vim: Handle : symbol properly. * eval.c (op_defun): Bugfix: documentation says that defun supports the same parameter list as lambda, and that is the intent. But this was broken, since op_defun was expecting the parameter list to be a proper list containing only bindable symbols, ruling out the use of the consing dot for rest parameter as well as the colon keyword symbol for optional parmeters.
* * eval.c (eval_init): Expose remq, remql and remqual.Kaz Kylheku2012-03-031-0/+18
| | | | * txr.1: Documented.
* Adding major section headings for the basic directives,Kaz Kylheku2012-03-011-0/+4
| | | | and for load.
* Pluralization fix in bind directive.Kaz Kylheku2012-03-011-23/+23
| | | | Load directive moved before Output section.
* Or operator computes logical or, not and.Kaz Kylheku2012-03-011-2/+2
| | | | Fixed typo.
* Confusing comment removed from examples of the op operator.Kaz Kylheku2012-03-011-2/+0
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* Another instance of bad troff syntax.Kaz Kylheku2012-03-011-5/+5
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* Fix bad troff syntax caused by apostrophe at the start of a line.Kaz Kylheku2012-03-011-2/+2
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* Clarification about TXR Syntax.Kaz Kylheku2012-03-011-2/+3
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* Capitalization.Kaz Kylheku2012-03-011-1/+1
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* Minor fix.Kaz Kylheku2012-03-011-1/+1
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* Version 59txr-59Kaz Kylheku2012-02-281-2/+2
| | | | | | | | | | * txr.c (version): Bumped. * txr.1: Bumped version and set date. * configure (txr_ver): Bumped. * RELNOTES: Updated.
* * match.c (extract): Check for negative value of opt_nobindings,Kaz Kylheku2012-02-271-1/+9
| | | | | | | | | | | which forces the printing. * txr.c (help): Under -b, mention that printing the word false is suppressed also. Added documentation for -B. (main): Implemented -B option. * txr.1: Documented -B option and added clarifying text under -b option explaining the conditions under which bindings are printed.
* Fix the issue properly, once and for all, of how to determineKaz Kylheku2012-02-271-1/+1
| | | | | | | | | | | | | | | | that output has taken place and suppress the printing of bindings. * debug.c (debug): std_output replaced with std_debug. * eval.c (eval_init): Registered new *stddebug* variable. * stream.c (std_debug): New variable. (stdio_put_string): Check that stream is other than std_debug, to determine that output has taken place. * stream.h (std_debug): Declared. * txr.1: Added *stddebug* to documentation stub heading.
* Bug #35625Kaz Kylheku2012-02-261-0/+6
| | | | | | | | | | | | | | | | | | | | | | * parser.l (BSCHR, BSYM, BTOK): New lexical definitions. (BRACED): New state. (grammar): Refactored so that braced variables are now handled in the BRACED state, allowing for lexical differences between braced variables and Lisp. This allows us to have the /regex/ syntax in braces, but /regex/ is just a symbol in the Lisp. The new #/ token is recognized and returned as HASH_SLASH. All rules reformatted to a more easily maintainble convention. * parser.y (HASH_SLASH): New token. (modifiers, lisp_regex): New nonterminals. (var): Grammar changed to use modifiers nonterminal instead of exprs. (var_op): Rule moved closer to var. (expr): Produces lisp_regex rather than regex. (yybadtoken): Handle HASH_SLASH in the switch statement. Bugfix: HASH_BACKSLASH was not handled. * txr.1: Documented #/regex/ syntax.
* * parser.l (num_esc): Skip octal indicator 'o' if present.Kaz Kylheku2012-02-251-3/+4
| | | | | | | This is needed for character constants. (CHRLIT): Fix broken hex constants, being treated as octal. * txr.1: Document octal character constants.
* Version 58txr-58Kaz Kylheku2012-02-251-2/+2
| | | | | | | | | | | | | | | | | * txr.c (version): Bumped. * txr.1: Bumped version and set date. * configure (txr_ver): Bumped. * RELNOTES: Updated. * eval.c (eval_init): Updated. * rand.c (rand): Function renamed to rnd due to a clash with standard C library (that does not show up when compiling as C++). * rand.h (rand): Declaration renamed to rnd.
* * parser.l (source_loc_str): Missing function re-written.Kaz Kylheku2012-02-251-0/+5
| | | | | | | | (Accidentally originally written in lex.yy.c file!) (parse_reset): If file can't be opened, try adding .txr suffix to it. * txr.1: Suffix-handling behavior documented.
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