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23 |
#define HASHTBLSIZE 2048 |
#define HASHTBLSIZE 2048 |
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25 |
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#define CAR(X) ((X)->content.c->car) |
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#define CDR(X) ((X)->content.c->cdr) |
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28 |
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/* printf, sscanf, fgets, fprintf, fopen, perror */ |
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#include <stdio.h> |
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/* exit, EXIT_SUCCESS, malloc, free */ |
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#include <stdlib.h> |
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/* NULL */ |
33 |
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#include <stddef.h> |
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/* dlopen, dlsym, dlerror */ |
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#include <dlfcn.h> |
36 |
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/* strcmp, strcpy, strlen, strcat, strdup */ |
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#include <string.h> |
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/* getopt, STDIN_FILENO, STDOUT_FILENO, usleep */ |
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#include <unistd.h> |
40 |
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/* EX_NOINPUT, EX_USAGE */ |
41 |
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#include <sysexits.h> |
42 |
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/* assert */ |
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#include <assert.h> |
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/* waitpid */ |
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#include <sys/wait.h> |
46 |
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/* va_list, va_start, va_arg, va_end */ |
47 |
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#include <stdarg.h> |
48 |
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49 |
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#ifdef __linux__ |
50 |
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/* mtrace, muntrace */ |
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#include <mcheck.h> |
52 |
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/* ioctl */ |
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#include <sys/ioctl.h> |
54 |
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/* KDMKTONE */ |
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#include <linux/kd.h> |
56 |
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#endif /* __linux__ */ |
57 |
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58 |
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59 |
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60 |
/* First, define some types. */ |
/* First, define some types. */ |
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struct cons_struct; |
struct cons_struct; |
63 |
struct symbol_struct; |
struct symbol_struct; |
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struct environment_struct; |
65 |
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66 |
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/* A type for pointers to external functions */ |
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typedef void (*funcp)(struct environment_struct*); |
68 |
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/* funcp is a pointer to a void function (environment *) */ |
69 |
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70 |
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enum type_enum { |
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unknown, |
72 |
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empty, /* The empty list */ |
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integer, |
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tfloat, |
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string, |
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func, /* Function pointer */ |
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symb, /* Symbol */ |
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tcons, /* A pair of two values */ |
79 |
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port /* An I/O port */ |
80 |
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}; /* Type of stack element */ |
81 |
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82 |
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83 |
/* A value of some type */ |
/* A value of some type */ |
84 |
typedef struct { |
typedef struct { |
85 |
enum { |
enum type_enum type:4; |
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empty, /* The empty list */ |
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integer, |
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tfloat, |
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string, |
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func, /* Function pointer */ |
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symb, /* Symbol */ |
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tcons, /* A pair of two values */ |
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port /* An I/O port */ |
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} type:4; /* Type of stack element */ |
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86 |
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87 |
union { |
union { |
88 |
struct { |
struct { |
99 |
FILE *p; /* ...or an I/O stream */ |
FILE *p; /* ...or an I/O stream */ |
100 |
int i; /* ...or an integer */ |
int i; /* ...or an integer */ |
101 |
float f; /* ...or a floating point number */ |
float f; /* ...or a floating point number */ |
102 |
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funcp func; /* ...or a function pointer */ |
103 |
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char *string; /* ...or a string */ |
104 |
} content; /* Stores a pointer or an integer */ |
} content; /* Stores a pointer or an integer */ |
105 |
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106 |
} value; |
} value; |
136 |
value *head; /* Head of the stack */ |
value *head; /* Head of the stack */ |
137 |
hashtbl symbols; /* Hash table of all variable bindings */ |
hashtbl symbols; /* Hash table of all variable bindings */ |
138 |
int err; /* Error flag */ |
int err; /* Error flag */ |
139 |
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char *errsymb; |
140 |
char *in_string; /* Input pending to be read */ |
char *in_string; /* Input pending to be read */ |
141 |
char *free_string; /* Free this string when all input is |
char *free_string; /* Free this string when all input is |
142 |
read from in_string */ |
read from in_string */ |
149 |
int gc_count; /* Amount currently allocated */ |
int gc_count; /* Amount currently allocated */ |
150 |
} environment; |
} environment; |
151 |
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/* A type for pointers to external functions */ |
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typedef void (*funcp)(environment*); /* funcp is a pointer to a void |
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function (environment *) */ |
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152 |
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153 |
void init_env(environment*); |
void init_env(environment*); |
154 |
void printerr(const char*); |
void printerr(environment*); |
155 |
extern void toss(environment*); |
extern void toss(environment*); |
156 |
symbol **hash(hashtbl, const char*); |
symbol **hash(hashtbl, const char*); |
157 |
value* new_val(environment*); |
value* new_val(environment*); |
238 |
extern void sx_646f(environment *); |
extern void sx_646f(environment *); |
239 |
extern void sx_6f70656e(environment*); |
extern void sx_6f70656e(environment*); |
240 |
extern void sx_636c6f7365(environment*); |
extern void sx_636c6f7365(environment*); |
241 |
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int check_args(environment*, ...); |