| 1 |
/* Copyright (c) 1994 Regents of the University of California */ |
| 2 |
|
| 3 |
#ifndef lint |
| 4 |
static char SCCSid[] = "$SunId$ LBL"; |
| 5 |
#endif |
| 6 |
|
| 7 |
/* |
| 8 |
* Header file for tracking hierarchical object names |
| 9 |
*/ |
| 10 |
|
| 11 |
#include <stdio.h> |
| 12 |
#include <string.h> |
| 13 |
#include "parser.h" |
| 14 |
|
| 15 |
|
| 16 |
int obj_nnames; /* depth of name hierarchy */ |
| 17 |
char **obj_name; /* name list */ |
| 18 |
|
| 19 |
static int obj_maxname; /* allocated list size */ |
| 20 |
|
| 21 |
#define ALLOC_INC 16 /* list increment ( > 1 ) */ |
| 22 |
|
| 23 |
|
| 24 |
int |
| 25 |
obj_handler(ac, av) /* handle an object entity statement */ |
| 26 |
int ac; |
| 27 |
char **av; |
| 28 |
{ |
| 29 |
if (ac == 1) { /* just pop top object */ |
| 30 |
if (obj_nnames < 1) |
| 31 |
return(MG_OK); /* should be error? */ |
| 32 |
free((MEM_PTR)obj_name[--obj_nnames]); |
| 33 |
obj_name[obj_nnames] = NULL; |
| 34 |
return(MG_OK); |
| 35 |
} |
| 36 |
if (ac != 2) |
| 37 |
return(MG_EARGC); |
| 38 |
if (!isname(av[1])) |
| 39 |
return(MG_EILL); |
| 40 |
if (obj_nnames >= obj_maxname-1) { /* enlarge array */ |
| 41 |
if (!obj_maxname) |
| 42 |
obj_name = (char **)malloc( |
| 43 |
(obj_maxname=ALLOC_INC)*sizeof(char *)); |
| 44 |
else |
| 45 |
obj_name = (char **)realloc((MEM_PTR)obj_name, |
| 46 |
(obj_maxname+=ALLOC_INC)*sizeof(char *)); |
| 47 |
if (obj_name == NULL) |
| 48 |
return(MG_EMEM); |
| 49 |
} |
| 50 |
/* allocate new entry */ |
| 51 |
obj_name[obj_nnames] = (char *)malloc(strlen(av[1])+1); |
| 52 |
if (obj_name[obj_nnames] == NULL) |
| 53 |
return(MG_EMEM); |
| 54 |
strcpy(obj_name[obj_nnames++], av[1]); |
| 55 |
obj_name[obj_nnames] = NULL; |
| 56 |
return(MG_OK); |
| 57 |
} |
| 58 |
|
| 59 |
|
| 60 |
void |
| 61 |
obj_clear() /* clear object stack */ |
| 62 |
{ |
| 63 |
while (obj_nnames) |
| 64 |
free((MEM_PTR)obj_name[--obj_nnames]); |
| 65 |
if (obj_maxname) { |
| 66 |
free((MEM_PTR)obj_name); |
| 67 |
obj_maxname = 0; |
| 68 |
} |
| 69 |
} |
