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* Spelling in car/cdr doc.Kaz Kylheku2015-05-101-1/+1
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* Minor formatting fix in ret macro description.Kaz Kylheku2015-05-091-1/+1
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* Crack down on redefinitions of built-ins.Kaz Kylheku2015-05-081-3/+11
| | | | | | | | | | | | | | | | | | | | | | | | | | | * eval.c (builtin, eval_initing): New global variable. (op_defun, op_defmacro): During initialization, record functions and macros in builtin hash. (builtin_reject_test): New static function. (expand_macrolet): Perform builtin reject test for fbind, lbind, and macrolet. (regfun, reg_mac): Add symbol to builtin hash. (eval_init): GC-protect new hash table variable and initialize it. Set eval_initing to true over eval initialization. The flip function is renamed fo flipargs. (eval_compat_fixup): New function, for dealing with the operator/function conflict over flip. * eval.h (eval_compat_fixup): Declared. * lib.c (compat_fixup): Call eval_compat_fixup. * tests/011/macros-2.txr: This test was defining a macro called while which is now illegal. Renamed to whilst. * tests/011/macros-2.expected: Regenerated. * txr.1: Function flip renamed to flipargs and documented in Compatibility section.
* * Makefile (LISP_TO_C_STRING): Strip comments, but not comment lines,Kaz Kylheku2015-05-071-1/+13
| | | | | | | | | | | | | | | | | | so line numbers don't change. * eval.c (eval_init): Fix registrations of lisp-parse and read. * lisplib.c (place_instantiate): Give name to parsed string stream using new lisp_parse argument. * parser.c (lisp_parse): Takes new argument to override name. * parser.h (lisp_parse): Declaration updated. * txr.c (txr_main): Call lisp_parse with four args, defaulting the new one. * txr.1: Documented new argument.
* Fix corruption triggered by extended gc disabling.Kaz Kylheku2015-05-011-0/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | The issue is that when gc is disabled, the gc function does nothing. But various code depends on calls to gc() doing something, like making space available in various static arrays. When gc is disabled for long periods, there are issues, like array overruns. * gc.c (gc): Must no longer be called at all if gc_enabled is false, and asserts that it is true. Callers must check the gc_enabled flag and implement appropriate cases. (make_obj): Only call gc when gc_enabled is true. If there is no space in the freshobj array after trying gc, or gc couldn't be tried because it is disabled, then schedule a full gc. (gc_set): If the checkobj array is full, only call gc if gc is enabled, otherwise schedule a full_gc. (gc_mutated): Do not assume that the mutobj array has room for another object; only set the object's generation to -1 and put it into the array if there is room. Similarly to gc_set, do a gc if there is no room, but if gc is not enabled, then schedule a full gc. (gc_wrap): Only call gc if gc_enabled is true, and return t in that case rathe than nil. * txr.1: Document return value of sys:gc function.
* Adding poll function.Kaz Kylheku2015-04-281-0/+51
| | | | | | | | | | | | | | * configure: Check for the poll function and set HAVE_POLL accordingly in config.h. * stream.h (fd_k): External declaration added. * sysif.c (poll_wrap): New function. (sysif_init): Registered poll-in, poll-out, poll-err, poll-pri, poll-rdhup, poll-nval, poll-rdband, poll-wrband variables and poll function. * txr.1: Documented poll.
* Version 107.txr-107Kaz Kylheku2015-04-261-2/+2
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* Allow (force ...) to be an assignable place.Kaz Kylheku2015-04-251-8/+5
| | | | | | | | | | | | | | This allows mlet variables to be assignable. * eval.c (force_s): New global variable. (op_modplace): Handle force form. (me_mlet): Use force_s symbol. (force_l): New static function. (eval_init): Initialize force_s variable. Use it in registration of force function. * txr.1: Remove text in mlet definition that variables are not assignable. Replace with note about an unspecified behavior.
* Introducing mlet macro.Kaz Kylheku2015-04-251-1/+107
| | | | | | | * eval.c (me_mlet): New static function. (eval_init): Registered mlet macro. * txr.1: Documented mlet.
* * txr.1: lconsp: unterminated syntax block.Kaz Kylheku2015-04-231-0/+1
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* * txr.1: name typo in lcons sample implementation.Kaz Kylheku2015-04-231-1/+1
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* * txr.1: Fix formatting issuesKaz Kylheku2015-04-221-10/+10
| | | | whilet, whenlet, iflet, for*
* Version 106.txr-106Kaz Kylheku2015-04-211-2/+2
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* Do not allow unrecognized escapes in regex.Kaz Kylheku2015-04-191-5/+18
| | | | | | | | | | | | * parser.l (REGOP): New regex alias for matching all regex special characters. (grammar): Several rules for regex special characters merged together. New rule introduced to match a special character after a backslash, making it literal. The old rule which makes literal any character after a backslash now throws an error, unless version 105 comaptibility is selected. * txr.1: Documented this behavior change.
* Adding lcons macro.Kaz Kylheku2015-04-181-1/+62
| | | | | | | | | * eval.c (me_lcons): New function. (eval_init): Registered lcons macro. * txr.1: Documented lcons. * tl.vim, txr.vim: Regenerated.
* Adding getenv, setenv and unsetenv.Kaz Kylheku2015-04-181-0/+66
| | | | | | | | | | | | | | * lib.c (setenv, unsetenv): Changed static functions to external. Moved them out of the #if !HAVE_TIMEGM block. * lib.h (setenv, unsetenv): Declared. * sysif.c (getenv_wrap, setenv_wrap, unsetenv_wrap): New functions. (sysif_init): Registered getenv, setenv and unsetenv. * txr.1: Documented getenv, setenv and unsetenv. * tl.vim, txr.vim: Regenerated.
* Adding exit* function which calls _exit.Kaz Kylheku2015-04-161-0/+21
| | | | | | | | | * sysif.c (exit_star_wrap): New static function. (sysif_init): Registered exit* intrinsic. * txr.1: Documented exit*. * tl.vim, txr.vim: Regenerated.
* * txr.1: Fixed inconsistency in style of some function headings.Kaz Kylheku2015-04-161-6/+6
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* Add exec and pipe functions.Kaz Kylheku2015-04-161-0/+43
| | | | | | | | | | | * configure: Check for pipe. * sysif.c (exec_wrap, pipe_wrap): New static functions. (sysif_init): Register exec and pipe intrinsics. * txr.1: Documented exec and pipe. * tl.vim, txr.vim: Regenerated.
* Adding chmod.Kaz Kylheku2015-04-161-0/+40
| | | | | | | | | | | * configure: Detect chmod. * sysif.c (chmod_wrap): New function. (sysif_init): Register chmod intrinsic. * txr.1: Documented. * tl.vim, txr.vim: Regenerated.
* * txr.1: Moving Unix-specific material to appropriate sections.Kaz Kylheku2015-04-161-131/+134
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* Adding dotimes macro.Kaz Kylheku2015-04-161-0/+41
| | | | | | | * eval.c (me_dotimes): New function. (eval_init): Registering dotimes macro. * txr.1: Documented dotimes.
* Implementing while* and until* loops.Kaz Kylheku2015-04-111-0/+30
| | | | | | | | | | | * eval.c (while_star_s, until_star_s): New symbol variables. (me_while_star, me_until_star): New static functions. (eval_init): Initialize new variables. Register while* and until* macros. * txr.1: Documented while* and until*. * txr.vim, tl.vim: Regenerated.
* * txr.1: Add powerset example under comb functionKaz Kylheku2015-04-111-0/+10
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* Exposing dup and dup2.Kaz Kylheku2015-04-111-0/+13
| | | | | | | | | | * sysif.c (dup_wrap): New static function. (sysif_init): Register dup_wrap as dupfd. The name dup conflicts with an existing function. * txr.1: Documented dupfd. * txr.vim, tl.vim: Regenerated.
* Functions open-fileno and fileno.Kaz Kylheku2015-04-101-0/+36
| | | | | | | | | | | | | | | | * stream.c (fd_k): New keyword variable. (stdio_get_prop): Handle the :fd property by returning the file descriptor. (open_fileno): New function. (stream_init): Initialize fd_k, and register fileno and open-fileno. * stream.h (open_fileno): Declared. * txr.1: Documented open-fileno and fileno. * utf8.c (w_fdopen): New function. * utf8.h (w_fdopen): Declared.
* * txr.1: Flurry of formatting fixes.Kaz Kylheku2015-04-091-6/+6
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* Fork and wait support.Kaz Kylheku2015-04-091-0/+132
| | | | | | | | | | | | | | * sysif.c (work_wrap, wait_wrap, wifexited, wexitstatus, wifsignaled, wtermsig, wcoredump, wifstopped, wstopsig, wifcontinued): New static functions. (sysif_init): Register new intrinsics: functions fork, wait, w-ifexited, w-exitstatus, w-ifsignaled, w-termsig, w-coredump, w-ifstopped, w-stopsig, w-ifcontinued; and variables w-nohang, w-untraced, w-continued. * txr.1: Documented. * tl.vim, txr.vim: Regenerated.
* * eval.c (iflet_s, when_s): New global variables.Kaz Kylheku2015-04-061-0/+77
| | | | | | | | | | | (me_iflet_whenlet): New static function. (eval_init): Initialize when_s, iflet_s. Use when_s for registering me_when. Register me_iflet_whenlet. * txr.1: Documented iflet and whenlet. * tl.vim, txr.vim: Regenerated.
* Move documentation of macros from between cond and if.Kaz Kylheku2015-04-061-139/+138
| | | | | | * txr.1: move the documentation of some control and iterative macros from between if and cond to after the control constructs.
* * txr.1: formatting fix in pos-min/pos-max.Kaz Kylheku2015-04-061-2/+2
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* New whilet macro.Kaz Kylheku2015-04-051-0/+63
| | | | | | | | | | | * eval.c (while_s): New symbol variable. (me_whilet): New static function. (eval_init): Initialize while_s. Use while_s in registration of while macro. Register new whilet macro. * txr.1: whilet is documented. * tl.vim, txr.vim: Regenerated.
* * txr.1: Formatting issue in for/for* syntax.Kaz Kylheku2015-04-041-4/+4
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* New zap operator.Kaz Kylheku2015-04-011-1/+23
| | | | | | | | * eval.c (zap_s): New global variable. (op_modplace): Support zap. (eval_init): Initialize zap_s, and register as operator. * txr.1: Documented zap.
* New -n option. New "i" mode letter in file opening functions.Kaz Kylheku2015-03-291-21/+66
| | | | | | | | | | | | | | | | | | | | | | | | * stream.c (struct stdio_mode): New struct type. (stdio_mode_init_trivial): New initializer macro. (parse_mode, format_mode, normalize_mode, set_mode_props): New static functions. (make_stdio_stream_common): the isatty check, and automatic marking of tty device streams as real-time is no longer done, unless backward compatibility 105 or earlier is requested. (open_file, open_tail, open_command, open_process): Use new mode parsing, which supports the "i" flag. (stream_init): If we have isatty, and standard input is a tty, then mark the *std-input* stream as real-time. * txr.1: Document -n/--noninteractive option. Fix typo where real-time-stream-p is referred to as stream-real-time-p. Document "i" flag on open-file and others. * txr.c (opt_noninteractive): New global. (help): Help text for -n/--noninteractive. (txr_main): Handle new options. * txr.h (opt_noninteractive): Declared.
* * eval.c (prinl, pprinl): Become external functions.Kaz Kylheku2015-03-281-0/+41
| | | | | | | | | | | (tprint): New function. (eval_init): Register tprint as intrinsic. * eval.h (prinl, pprinl, tprint): Declared. * txr.c (txr_main): New option, -t. * txr.1: Documented tprint and -t option.
* * eval.c (eval_init): register get-lines as having one optionalKaz Kylheku2015-03-281-2/+8
| | | | | | | | argument. * lib.c (lazy_stream_cons): Default the argument to std_input. * txr.1: Document that the stream is optional in get-lines.
* * txr.1: formatting fixes in weave description.Kaz Kylheku2015-03-241-1/+2
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* * lib.c (int_str): Workaround for wcstol recognizing the 0x prefix whenKaz Kylheku2015-03-201-0/+1
| | | | | | | radix is 16. Also, thrown an error if radix is not in the range 0 to 36. * txr.1: Document int-str's radix range restriction.
* * txr.c (help): Added missing documentation for -e and -p.Kaz Kylheku2015-03-171-6/+18
| | | | | | | Also documented -P. (txr_main): New option implemented, -P. * txr.1: Document -P, and clean up -e and -p documentation.
* Version 105.txr-105Kaz Kylheku2015-03-141-2/+2
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* * sysif.c (mkdir_nothrow_exists): New static function.Kaz Kylheku2015-03-101-1/+9
| | | | | | | (ensure_dir): New function. (sysif_init): ensure_dir registered as intrinsic. * txr.1: ensure_dir documented.
* New ignerr macro.Kaz Kylheku2015-02-251-0/+30
| | | | | | | | | * eval.c (me_ignerr): New static function. (eval_init): Registered ignerr macro. * txr.1: Documented. * tl.vim, txr.vim: Regenerated.
* Introducing persistent error state on streams.Kaz Kylheku2015-02-251-0/+58
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * lib.c (cobj_ops): New function. * lib.h (cobj_ops): Declared. * stream.c (null_ops): Initializer updated. (struct stdio_handle): New member, err. (stdio_stream_mark): Mark the err member. (errno_to_string): New static function. (stdio_maybe_read_error, stdio_maybe_error): Set persistent error state. Use errno_to_string_function. (stdio_put_string, stdio_put_char, stdio_put_byte, stdio_seek, stdio_get_line): Set errno to zero, so that if the underlying operations do not set errno on err, we don't misinterpret some pervious errno value as pertaining to the failed stream operation. (stdio_get_error, stdio_get_error_str, stdio_clear_error): New static functions. (stdio_ops, tail_ops, pipe_ops): Update initializer with new functions. (string_in_get_error, string_in_get_error_str): New static functions. (string_in_ops): Update initializer with new functions. (byte_in_get_error, byte_in_get_error_str): New static functions. (byte_in_ops): Update initializer with new functions. (string_out_ops, strlist_out_ops): Update initializer with null pointers for new functions. (struct dir_handle): New struct type. (dir_destroy, dir_mark): New functions. (dir_get_line): Refactor for struct dir_handle context rather than DIR. Persist error state. (dir_close): Refactor for struct dir_handle. (dir_get_error, dir_get_error_str, dir_clear_error): New static functions. (dir_ops): Update initializer with new functions. (make_stdio_stream_common): Initialize new err member. (make_dir_stream): Refactor for struct dir_handle. (get_error, get_error_str, clear_error): New functions. (cat_get_error, cat_get_error_str, cat_clear_error): New static functions. (cat_stream_ops): Update initializer with new functions. (stream_init): Register get-error, get-error-str, clear-error intrinsics. * stream.h (struct strm_ops): New function pointer members, get_error, get_error_str and clear_error. (strm_ops_init): Macro extended with new arguments for new function pointers. (get_error, get_error_str, clear_error): Declared. * syslog.c (syslog_strm_ops): Update initializer with null pointers for new functions. * txr.1: Documented get-error, get-error-str and clear-error.
* String-returning wrappers for some regex matching functions.Kaz Kylheku2015-02-201-4/+33
| | | | | | | | | | | * eval.c (eval_init): Register search-regst, match-regst and match-regst-right intrinsics. * regex.c (search_regst, match_regst, match_regst_right): New functions. * regex.h (search_regst, match_regst, match_regst_right): Declared. * txr.1: Documented new variants.
* New functions pad and weave.Kaz Kylheku2015-02-121-0/+61
| | | | | | | | * eval.c (pad_func, pad, weave_while, weave_gen, weavev): New static functions. (eval_init): Registered pad and weave intrisics. * txr.1: Documented pad and weave.
* * eval.c (symacro_k, fun_k): New keyword variables.Kaz Kylheku2015-02-101-0/+36
| | | | | | | | | | (lexical_lisp1_binding): New static function. (eval_init): Initialize symacro_k and fun_k; register new intrinsic function lexical-lisp1-binding. * match.h (var_k): Existing external name declared. * txr.1: Documented lexical-lisp1-binding.
* Version 104.txr-104Kaz Kylheku2015-02-081-2/+2
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* * arith.c (trunc_rem): New function.Kaz Kylheku2015-02-071-1/+21
| | | | | | | | | | * eval.c (eval_init): Register trunc-rem intrinsic. * lib.h (trunc_rem): Declared. * txr.1: Documented trunc-rem. * tl.vim, txr.vim: Updated.
* * txr.1: fixed flurry of phrasing, formatting fumbles.Kaz Kylheku2015-02-071-12/+22
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