/[cvs]/stack/stack.h
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revision 1.2 by masse, Sun Feb 17 04:03:57 2002 UTC revision 1.4 by teddy, Thu Mar 7 03:28:29 2002 UTC
# Line 1  Line 1 
1    /*
2        stack - an interactive interpreter for a stack-based language
3        Copyright (C) 2002  Mats Alritzson and Teddy Hogeborn
4    
5        This program is free software; you can redistribute it and/or modify
6        it under the terms of the GNU General Public License as published by
7        the Free Software Foundation; either version 2 of the License, or
8        (at your option) any later version.
9    
10        This program is distributed in the hope that it will be useful,
11        but WITHOUT ANY WARRANTY; without even the implied warranty of
12        MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
13        GNU General Public License for more details.
14    
15        You should have received a copy of the GNU General Public License
16        along with this program; if not, write to the Free Software
17        Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
18    
19        Authors: Mats Alritzson <masse@fukt.bth.se>
20                 Teddy Hogeborn <teddy@fukt.bth.se>
21    */
22    
23  #define HASHTBLSIZE 2048  #define HASHTBLSIZE 2048
24    
# Line 46  typedef struct stackitem_struct Line 67  typedef struct stackitem_struct
67     defined symbols */     defined symbols */
68  typedef struct {  typedef struct {
69    stackitem *gc_ref;    stackitem *gc_ref;
70      stackitem *gc_protect;
71    int gc_limit, gc_count;    int gc_limit, gc_count;
72    
73    stackitem *head;              /* Head of the stack */    stackitem *head;              /* Head of the stack */
# Line 53  typedef struct { Line 75  typedef struct {
75    int err;                      /* Error flag */    int err;                      /* Error flag */
76    char *in_string;              /* Input pending to be read */    char *in_string;              /* Input pending to be read */
77    char *free_string;            /* Free this string when all input is    char *free_string;            /* Free this string when all input is
78                                     read from in_string */                                     read from in_string */
79    FILE *inputstream;            /* stdin or a file, most likely */    FILE *inputstream;            /* stdin or a file, most likely */
80    int interactive;              /* print prompts, stack, etc */    int interactive;              /* print prompts, stack, etc */
81  } environment;  } environment;
# Line 114  extern void to(environment*); Line 136  extern void to(environment*);
136  extern void readline(environment*);  extern void readline(environment*);
137  extern void sx_72656164(environment*);  extern void sx_72656164(environment*);
138  extern void foreach(environment*);  extern void foreach(environment*);
139    void protect(environment*, value*);
140    void unprotect(environment*);
141    extern void copying(environment *env);
142    extern void warranty(environment *env);
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