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/* |
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stack - an interactive interpreter for a stack-based language |
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Copyright (C) 2002 Mats Alritzson and Teddy Hogeborn |
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This program is free software; you can redistribute it and/or modify |
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it under the terms of the GNU General Public License as published by |
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the Free Software Foundation; either version 2 of the License, or |
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(at your option) any later version. |
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This program is distributed in the hope that it will be useful, |
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but WITHOUT ANY WARRANTY; without even the implied warranty of |
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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GNU General Public License for more details. |
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You should have received a copy of the GNU General Public License |
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along with this program; if not, write to the Free Software |
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
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Authors: Mats Alritzson <masse@fukt.bth.se> |
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Teddy Hogeborn <teddy@fukt.bth.se> |
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*/ |
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#define HASHTBLSIZE 2048 |
#define HASHTBLSIZE 2048 |
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int err; /* Error flag */ |
int err; /* Error flag */ |
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char *in_string; /* Input pending to be read */ |
char *in_string; /* Input pending to be read */ |
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char *free_string; /* Free this string when all input is |
char *free_string; /* Free this string when all input is |
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read from in_string */ |
read from in_string */ |
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FILE *inputstream; /* stdin or a file, most likely */ |
FILE *inputstream; /* stdin or a file, most likely */ |
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int interactive; /* print prompts, stack, etc */ |
int interactive; /* print prompts, stack, etc */ |
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} environment; |
} environment; |
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extern void foreach(environment*); |
extern void foreach(environment*); |
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void protect(environment*, value*); |
void protect(environment*, value*); |
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void unprotect(environment*); |
void unprotect(environment*); |
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extern void copying(environment *env); |
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extern void warranty(environment *env); |