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- /***********************************************************
-
- Copyright 1995 by Tom Lord
-
- All Rights Reserved
-
- Permission to use, copy, modify, and distribute this software and its
- documentation for any purpose and without fee is hereby granted,
- provided that the above copyright notice appear in all copies and that
- both that copyright notice and this permission notice appear in
- supporting documentation, and that the name of the copyright holder not be
- used in advertising or publicity pertaining to distribution of the
- software without specific, written prior permission.
-
- Tom Lord DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
- INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
- EVENT SHALL TOM LORD BE LIABLE FOR ANY SPECIAL, INDIRECT OR
- CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF
- USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
- OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
- PERFORMANCE OF THIS SOFTWARE.
-
- ******************************************************************/
-
-
-
- #include "rxall.h"
- #include "rxbasic.h"
- #include "rxunfa.h"
- #include "rxstr.h"
-
-
-
-
- int rx_basic_unfaniverse_delay = 64;
- struct rx_unfaniverse * rx_basic_uv = 0;
-
-
-
- static int
- init_basic_once ()
- {
- if (rx_basic_uv)
- return 0;
- rx_basic_uv = rx_make_unfaniverse (rx_basic_unfaniverse_delay);
- return (rx_basic_uv ? 0 : -1);
- }
-
-
- static char * silly_hack = 0;
-
- #ifdef __STDC__
- struct rx_solutions *
- rx_basic_make_solutions (struct rx_registers * regs,
- struct rexp_node * expression,
- struct rexp_node ** subexps,
- int start, int end,
- struct rx_context_rules * rules,
- char * str)
- #else
- struct rx_solutions *
- rx_basic_make_solutions (regs, rexp, subexps, start, end, rules, str)
- struct rx_registers * regs;
- struct rexp_node * expression;
- struct rexp_node ** subexps;
- int start;
- int end;
- struct rx_context_rules * rules;
- char * str;
- #endif
- {
- struct rx_str_closure * closure;
- if (init_basic_once ())
- return 0;
- if (silly_hack)
- {
- closure = (struct rx_str_closure *)silly_hack;
- silly_hack = 0;
- }
- else
- closure = (struct rx_str_closure *)malloc (sizeof (*closure));
- if (!closure)
- return 0;
- closure->str = str;
- closure->len = end;
- closure->rules = *rules;
- return rx_make_solutions (regs, rx_basic_uv, expression, subexps, 256,
- start, end, rx_str_vmfn, rx_str_contextfn,
- (void *)closure);
- }
-
-
-
- #ifdef __STDC__
- void
- rx_basic_free_solutions (struct rx_solutions * solns)
- #else
- void
- rx_basic_free_solutions (solns)
- struct rx_solutions * solns;
- #endif
- {
- if (!silly_hack)
- silly_hack = (char *)solns->closure;
- else
- free (solns->closure);
- solns->closure = 0;
- rx_free_solutions (solns);
- }
-