--- stack/stack.h 2002/03/12 14:06:05 1.12 +++ stack/stack.h 2003/08/11 14:31:48 1.26 @@ -22,20 +22,67 @@ #define HASHTBLSIZE 2048 +#define CAR(X) ((X)->content.c->car) +#define CDR(X) ((X)->content.c->cdr) + +/* printf, sscanf, fgets, fprintf, fopen, perror */ +#include +/* exit, EXIT_SUCCESS, malloc, free */ +#include +/* NULL */ +#include +/* dlopen, dlsym, dlerror */ +#include +/* strcmp, strcpy, strlen, strcat, strdup */ +#include +/* getopt, STDIN_FILENO, STDOUT_FILENO, usleep */ +#include +/* EX_NOINPUT, EX_USAGE */ +#include +/* assert */ +#include +/* waitpid */ +#include +/* va_list, va_start, va_arg, va_end */ +#include + +#ifdef __linux__ +/* mtrace, muntrace */ +#include +/* ioctl */ +#include +/* KDMKTONE */ +#include +#endif /* __linux__ */ + + + /* First, define some types. */ struct cons_struct; +struct symbol_struct; +struct environment_struct; + +/* A type for pointers to external functions */ +typedef void (*funcp)(struct environment_struct*); +/* funcp is a pointer to a void function (environment *) */ + +enum type_enum { + unknown, + empty, /* The empty list */ + integer, + tfloat, + string, + func, /* Function pointer */ + symb, /* Symbol */ + tcons, /* A pair of two values */ + port /* An I/O port */ +}; /* Type of stack element */ + /* A value of some type */ typedef struct { - enum { - integer, - tfloat, - string, - func, /* Function pointer */ - symb, /* Symbol */ - tcons /* A pair of two values */ - } type:4; /* Type of stack element */ + enum type_enum type:4; union { struct { @@ -48,8 +95,12 @@ union { void *ptr; /* Pointer to the content */ struct cons_struct *c; /* ...or a pointer to a cons cell */ + struct symbol_struct *sym; /* ...or a pointer to a symbol */ + FILE *p; /* ...or an I/O stream */ int i; /* ...or an integer */ float f; /* ...or a floating point number */ + funcp func; /* ...or a function pointer */ + char *string; /* ...or a string */ } content; /* Stores a pointer or an integer */ } value; @@ -65,7 +116,7 @@ typedef struct cons_struct { /* A pair of two values */ value *car; value *cdr; -} cons; +} pair; /* A symbol with a name and possible value */ /* (These do not need reference counters, they are kept unique by @@ -82,31 +133,33 @@ /* An environment; gives access to the stack and a hash table of defined symbols */ typedef struct { - stackitem *gc_ref; - int gc_limit, gc_count; - value *head; /* Head of the stack */ hashtbl symbols; /* Hash table of all variable bindings */ int err; /* Error flag */ + char *errsymb; char *in_string; /* Input pending to be read */ char *free_string; /* Free this string when all input is read from in_string */ FILE *inputstream; /* stdin or a file, most likely */ int interactive; /* print prompts, stack, etc */ + + /* Garbage Collector stuff*/ + stackitem *gc_ref; /* Stack of all allocated values */ + int gc_limit; /* Run GC when this much is allocated */ + int gc_count; /* Amount currently allocated */ } environment; -/* A type for pointers to external functions */ -typedef void (*funcp)(environment*); /* funcp is a pointer to a void - function (environment *) */ void init_env(environment*); -void printerr(const char*); +void printerr(environment*, const char*); extern void toss(environment*); symbol **hash(hashtbl, const char*); value* new_val(environment*); void gc_mark(value*); -void gc_maybe(environment *env); +void gc_maybe(environment*); extern void gc_init(environment*); +void protect(value*); +void unprotect(value*); void push_val(environment*, value*); void push_int(environment*, int); void push_float(environment*, float); @@ -114,14 +167,19 @@ char *mangle_str(const char*); extern void mangle(environment*); void push_sym(environment*, const char*); -extern void nl(); +extern void nl(environment*); +extern void nlport(environment*); extern void type(environment*); -void print_h(value*, int); +void print_val(environment *, value*, int, stackitem*, FILE*); extern void print_(environment*); extern void print(environment*); extern void princ_(environment*); extern void princ(environment*); -void print_st(value*, long); +extern void printport_(environment*); +extern void printport(environment*); +extern void princport_(environment*); +extern void princport(environment*); +void print_st(environment*, value*, long); extern void printstack(environment*); extern void swap(environment*); extern void rot(environment*); @@ -143,24 +201,41 @@ extern void sx_2b(environment*); extern void sx_2d(environment*); extern void sx_3e(environment*); +extern void sx_3c(environment*); +extern void sx_3c3d(environment*); +extern void sx_3e3d(environment*); value *copy_val(environment*, value*); extern void sx_647570(environment*); extern void sx_6966(environment*); extern void ifelse(environment*); +extern void sx_656c7365(environment*); +extern void then(environment*); extern void sx_7768696c65(environment*); extern void sx_666f72(environment*); +extern void foreach(environment*); extern void to(environment*); extern void readline(environment*); +extern void readlineport(environment*); +void readlinestream(environment*, FILE*); extern void sx_72656164(environment*); -extern void foreach(environment*); -void protect(value*); -void unprotect(value*); +extern void readport(environment*); +void readstream(environment*, FILE*); +extern void beep(environment*); +extern void sx_77616974(environment*); extern void copying(environment*); extern void warranty(environment*); extern void sx_2a(environment*); extern void sx_2f(environment*); extern void mod(environment*); -extern void sx_3c(environment*); -extern void sx_3c3d(environment*); -extern void sx_3e3d(environment*); extern void sx_646976(environment*); +extern void setcar(environment*); +extern void setcdr(environment*); +extern void car(environment*); +extern void cdr(environment*); +extern void cons(environment*); +extern void assq(environment*); +void assocgen(environment*, funcp); +extern void sx_646f(environment *); +extern void sx_6f70656e(environment*); +extern void sx_636c6f7365(environment*); +int check_args(environment*, ...);