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gnoemoe/gnoemoe/parser/functions.c

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/******************************************************************************
Copyright (c) 1992, 1995, 1996 Xerox Corporation. All rights reserved.
Portions of this code were written by Stephen White, aka ghond.
Use and copying of this software and preparation of derivative works based
upon this software are permitted. Any distribution of this software or
derivative works must comply with all applicable United States export
control laws. This software is made available AS IS, and Xerox Corporation
makes no warranty about the software, its performance or its conformity to
any specification. Any person obtaining a copy of this software is requested
to send their name and post office or electronic mail address to:
Pavel Curtis
Xerox PARC
3333 Coyote Hill Rd.
Palo Alto, CA 94304
Pavel@Xerox.Com
*****************************************************************************/
#include <stdarg.h>
#include "pconfig.h"
#include "functions.h"
#include "list.h"
#include "storage.h"
#include "streams.h"
#include "structures.h"
#include "utils.h"
/*****************************************************************************
* This is the table of procedures that register MOO built-in functions. To
* add new built-in functions to the server, add to the list below the name of
* a C function that will register your new MOO built-ins; your C function will
* be called exactly once, during server initialization. Also add a
* declaration of that C function to `bf_register.h' and add the necessary .c
* files to the `CSRCS' line in the Makefile.
****************************************************************************/
typedef void (*registry) ();
void register_disassemble();
void register_execute();
void register_functions();
void register_list();
void register_log();
void register_numbers();
void register_objects();
void register_property();
void register_server();
void register_tasks();
void register_verbs();
/* Added functions */
void register_ansi();
void register_martian();
void register_files();
static registry bi_function_registries[] =
{
register_disassemble,
register_execute,
register_functions,
register_list,
register_log,
register_numbers,
register_objects,
register_property,
register_server,
register_tasks,
register_verbs,
/* Added functions */
register_ansi,
register_martian,
register_files
};
struct bft_entry {
const char *name;
const char *protect_str;
const char *verb_str;
int minargs;
int maxargs;
var_type *prototype;
bf_type func;
bf_read_type read;
bf_write_type write;
int protected;
};
static struct bft_entry bf_table[MAX_FUNC];
static unsigned top_bf_table = 0;
void
register_bi_functions()
{
int loop, num_registries =
sizeof(bi_function_registries) / sizeof(bi_function_registries[0]);
if (top_bf_table != 0)
return;
for (loop = 0; loop < num_registries; loop++)
(void) (*(bi_function_registries[loop])) ();
}
/*** register ***/
static unsigned
register_common(const char *name, int minargs, int maxargs, bf_type func,
bf_read_type read, bf_write_type write, va_list args)
{
int va_index;
int num_arg_types = maxargs == -1 ? minargs : maxargs;
static Stream *s = 0;
if (!s)
s = new_stream(30);
if (top_bf_table == MAX_FUNC) {
return 0;
}
bf_table[top_bf_table].name = str_dup(name);
stream_printf(s, "protect_%s", name);
bf_table[top_bf_table].protect_str = str_dup(reset_stream(s));
stream_printf(s, "bf_%s", name);
bf_table[top_bf_table].verb_str = str_dup(reset_stream(s));
bf_table[top_bf_table].minargs = minargs;
bf_table[top_bf_table].maxargs = maxargs;
bf_table[top_bf_table].func = func;
bf_table[top_bf_table].read = read;
bf_table[top_bf_table].write = write;
bf_table[top_bf_table].protected = 0;
if (num_arg_types > 0)
bf_table[top_bf_table].prototype =
mymalloc(num_arg_types * sizeof(var_type), M_PROTOTYPE);
else
bf_table[top_bf_table].prototype = 0;
for (va_index = 0; va_index < num_arg_types; va_index++)
bf_table[top_bf_table].prototype[va_index] = va_arg(args, var_type);
return top_bf_table++;
}
unsigned
register_function(const char *name, int minargs, int maxargs,
bf_type func,...)
{
va_list args;
unsigned ans;
va_start(args, func);
ans = register_common(name, minargs, maxargs, func, 0, 0, args);
va_end(args);
return ans;
}
unsigned
register_function_with_read_write(const char *name, int minargs, int maxargs,
bf_type func, bf_read_type read,
bf_write_type write,...)
{
va_list args;
unsigned ans;
va_start(args, write);
ans = register_common(name, minargs, maxargs, func, read, write, args);
va_end(args);
return ans;
}
/*** looking up functions -- by name or num ***/
static const char *func_not_found_msg = "no such function";
unsigned
number_func_by_name(const char *name)
{ /* used by parser only */
unsigned i;
for (i = 0; i < top_bf_table; i++)
if (!mystrcasecmp(name, bf_table[i].name))
return i;
return FUNC_NOT_FOUND;
}
/*** calling built-in functions ***/
void
register_functions(void)
{
register_function("function_info", 0, 1, NULL, TYPE_STR);
register_function("load_server_options", 0, 0, NULL);
}
void
register_disassemble(void)
{
register_function("disassemble", 2, 2, NULL, TYPE_OBJ, TYPE_ANY);
}
void
register_execute(void)
{
register_function_with_read_write("call_function", 1, -1, NULL,
NULL, NULL, TYPE_STR);
register_function("raise", 1, 3, NULL, TYPE_ANY, TYPE_STR, TYPE_ANY);
register_function("suspend", 0, 1, NULL, TYPE_INT);
register_function("read", 0, 2, NULL, TYPE_OBJ, TYPE_ANY);
register_function("seconds_left", 0, 0, NULL);
register_function("ticks_left", 0, 0, NULL);
register_function("pass", 0, -1, NULL);
register_function("set_task_perms", 1, 1, NULL, TYPE_OBJ);
register_function("caller_perms", 0, 0, NULL);
register_function("callers", 0, 1, NULL, TYPE_ANY);
register_function("task_stack", 1, 2, NULL, TYPE_INT, TYPE_ANY);
}
void
register_log(void)
{
register_function("server_log", 1, 2, NULL, TYPE_STR, TYPE_ANY);
}
void
register_objects(void)
{
register_function("toobj", 1, 1, NULL, TYPE_ANY);
register_function("typeof", 1, 1, NULL, TYPE_ANY);
register_function_with_read_write("create", 1, 2, NULL,
NULL, NULL, TYPE_OBJ, TYPE_OBJ);
register_function_with_read_write("recycle", 1, 1, NULL,
NULL, NULL, TYPE_OBJ);
register_function("object_bytes", 1, 1, NULL, TYPE_OBJ);
register_function("valid", 1, 1, NULL, TYPE_OBJ);
register_function("parent", 1, 1, NULL, TYPE_OBJ);
register_function("children", 1, 1, NULL, TYPE_OBJ);
register_function("chparent", 2, 2, NULL, TYPE_OBJ, TYPE_OBJ);
register_function("max_object", 0, 0, NULL);
register_function("players", 0, 0, NULL);
register_function("is_player", 1, 1, NULL, TYPE_OBJ);
register_function("set_player_flag", 2, 2, NULL,
TYPE_OBJ, TYPE_ANY);
register_function_with_read_write("move", 2, 2, NULL,
NULL, NULL,
TYPE_OBJ, TYPE_OBJ);
register_function("is_group", 1, 1, NULL, TYPE_OBJ);
register_function("is_groupmember", 2, 2, NULL,
TYPE_OBJ, TYPE_OBJ);
register_function("set_group_flag", 2, 2, NULL,
TYPE_OBJ, TYPE_ANY);
register_function("groupwise_equiv", 2, 2, NULL,
TYPE_OBJ, TYPE_OBJ);
}
void
register_property(void)
{
register_function("properties", 1, 1, NULL, TYPE_OBJ);
register_function("property_info", 2, 2, NULL,
TYPE_OBJ, TYPE_STR);
register_function("set_property_info", 3, 3, NULL,
TYPE_OBJ, TYPE_STR, TYPE_LIST);
register_function("add_property", 4, 4, NULL,
TYPE_OBJ, TYPE_STR, TYPE_ANY, TYPE_LIST);
register_function("delete_property", 2, 2, NULL,
TYPE_OBJ, TYPE_STR);
register_function("clear_property", 2, 2, NULL,
TYPE_OBJ, TYPE_STR);
register_function("is_clear_property", 2, 2, NULL,
TYPE_OBJ, TYPE_STR);
register_function("prop_bytes", 2, 2, NULL,
TYPE_OBJ, TYPE_STR);
}
void
register_server(void)
{
register_function("server_version", 0, 0, NULL);
register_function("renumber", 1, 1, NULL, TYPE_OBJ);
register_function("reset_max_object", 0, 0, NULL);
register_function("memory_usage", 0, 0, NULL);
register_function("shutdown", 0, 1, NULL, TYPE_STR);
register_function("dump_database", 0, 0, NULL);
register_function("db_disk_size", 0, 0, NULL);
register_function("open_network_connection", 0, -1,
NULL);
register_function("connected_players", 0, 1, NULL,
TYPE_ANY);
register_function("connected_seconds", 1, 1, NULL,
TYPE_OBJ);
register_function("idle_seconds", 1, 1, NULL, TYPE_OBJ);
register_function("connection_name", 1, 1, NULL, TYPE_OBJ);
register_function("notify", 2, 3, NULL, TYPE_OBJ, TYPE_STR, TYPE_ANY);
register_function("notify_ansi", 2, 3, NULL, TYPE_OBJ, TYPE_STR,
TYPE_ANY);
register_function("boot_player", 1, 1, NULL, TYPE_OBJ);
register_function("set_connection_option", 3, 3, NULL,
TYPE_OBJ, TYPE_STR, TYPE_ANY);
register_function("connection_option", 2, 2, NULL,
TYPE_OBJ, TYPE_STR);
register_function("connection_options", 1, 1, NULL,
TYPE_OBJ);
register_function("listen", 2, 3, NULL, TYPE_OBJ, TYPE_ANY, TYPE_ANY);
register_function("unlisten", 1, 1, NULL, TYPE_ANY);
register_function("listeners", 0, 0, NULL);
register_function("buffered_output_length", 0, 1,
NULL, TYPE_OBJ);
}
void
register_tasks(void)
{
register_function("task_id", 0, 0, NULL);
register_function("queued_tasks", 0, 0, NULL);
register_function("kill_task", 1, 1, NULL, TYPE_INT);
register_function("output_delimiters", 1, 1, NULL,
TYPE_OBJ);
register_function("queue_info", 0, 1, NULL, TYPE_OBJ);
register_function("resume", 1, 2, NULL, TYPE_INT, TYPE_ANY);
register_function("force_input", 2, 3, NULL,
TYPE_OBJ, TYPE_STR, TYPE_ANY);
register_function("flush_input", 1, 2, NULL, TYPE_OBJ, TYPE_ANY);
}
void
register_verbs(void)
{
register_function("verbs", 1, 1, NULL, TYPE_OBJ);
register_function("verb_info", 2, 2, NULL, TYPE_OBJ, TYPE_ANY);
register_function("set_verb_info", 3, 3, NULL,
TYPE_OBJ, TYPE_ANY, TYPE_LIST);
register_function("verb_args", 2, 2, NULL, TYPE_OBJ, TYPE_ANY);
register_function("set_verb_args", 3, 3, NULL,
TYPE_OBJ, TYPE_ANY, TYPE_LIST);
register_function("add_verb", 3, 3, NULL,
TYPE_OBJ, TYPE_LIST, TYPE_LIST);
register_function("delete_verb", 2, 2, NULL, TYPE_OBJ, TYPE_ANY);
register_function("verb_code", 2, 4, NULL,
TYPE_OBJ, TYPE_ANY, TYPE_ANY, TYPE_ANY);
register_function("set_verb_code", 3, 3, NULL,
TYPE_OBJ, TYPE_ANY, TYPE_LIST);
register_function("eval", 1, 1, NULL, TYPE_STR);
register_function("verb_bytes", 2, 2, NULL, TYPE_OBJ, TYPE_STR);
}
void
register_ansi(void)
{
register_function("ansi_delete", 1, 1, NULL, TYPE_STR);
register_function("ansi_escape", 1, 1, NULL, TYPE_STR);
register_function("ansi_cutoff", 3, 3, NULL, TYPE_STR, TYPE_INT, TYPE_INT);
}
void
register_martian()
{
register_function("xor", 2, 2, NULL, TYPE_ANY, TYPE_ANY);
register_function("us_time", 0, 0, NULL);
register_function("nprogs", 0, 0, NULL);
register_function("random_of", 1, 1, NULL, TYPE_LIST);
register_function("enlist", 1, 1, NULL, TYPE_ANY);
register_function("explode", 1, 2, NULL, TYPE_STR, TYPE_STR);
register_function("panic", 0, 1, NULL, TYPE_STR);
register_function("isa", 2, 2, NULL, TYPE_OBJ, TYPE_OBJ);
}
void
register_files(void)
{
register_function("fileappend", 3, 3, NULL, TYPE_STR, TYPE_STR, TYPE_LIST);
register_function("filechmod", 3, 3, NULL, TYPE_STR, TYPE_STR, TYPE_STR);
register_function("filedelete", 2, 2, NULL, TYPE_STR, TYPE_STR);
register_function("fileerror", 0, 0, NULL);
register_function("fileexists", 2, 2, NULL, TYPE_STR, TYPE_STR);
register_function("fileextract", 4, 5, NULL, TYPE_STR, TYPE_STR, TYPE_STR, TYPE_STR, TYPE_STR);
register_function("filegrep", 3, 4, NULL, TYPE_STR, TYPE_STR, TYPE_STR, TYPE_STR);
register_function("fileinfo", 2, 2, NULL, TYPE_STR, TYPE_STR);
register_function("filelength", 2, 2, NULL, TYPE_STR, TYPE_STR);
register_function("filelist", 1, 2, NULL, TYPE_STR, TYPE_STR);
register_function("filemkdir", 2, 2, NULL, TYPE_STR, TYPE_STR);
register_function("fileread", 2, 4, NULL, TYPE_STR, TYPE_STR, TYPE_INT, TYPE_INT);
register_function("filerename", 3, 3, NULL, TYPE_STR, TYPE_STR, TYPE_STR);
register_function("filermdir", 2, 2, NULL, TYPE_STR, TYPE_STR);
register_function("filerun", 1, -1, NULL, TYPE_STR, TYPE_LIST, TYPE_LIST);
register_function("filesize", 2, 2, NULL, TYPE_STR, TYPE_STR);
register_function("fileversion", 0, 0, NULL);
register_function("filewrite", 3, 5, NULL, TYPE_STR, TYPE_STR, TYPE_LIST, TYPE_INT, TYPE_INT);
}
void
register_numbers(void)
{
register_function("toint", 1, 1, NULL, TYPE_ANY);
register_function("tonum", 1, 1, NULL, TYPE_ANY);
register_function("tofloat", 1, 1, NULL, TYPE_ANY);
register_function("min", 1, -1, NULL, TYPE_NUMERIC);
register_function("max", 1, -1, NULL, TYPE_NUMERIC);
register_function("abs", 1, 1, NULL, TYPE_NUMERIC);
register_function("random", 0, 1, NULL, TYPE_INT);
register_function("time", 0, 0, NULL);
register_function("ctime", 0, 1, NULL, TYPE_INT);
register_function("floatstr", 2, 3, NULL,
TYPE_FLOAT, TYPE_INT, TYPE_ANY);
register_function("sqrt", 1, 1, NULL, TYPE_FLOAT);
register_function("sin", 1, 1, NULL, TYPE_FLOAT);
register_function("cos", 1, 1, NULL, TYPE_FLOAT);
register_function("tan", 1, 1, NULL, TYPE_FLOAT);
register_function("asin", 1, 1, NULL, TYPE_FLOAT);
register_function("acos", 1, 1, NULL, TYPE_FLOAT);
register_function("atan", 1, 2, NULL, TYPE_FLOAT, TYPE_FLOAT);
register_function("sinh", 1, 1, NULL, TYPE_FLOAT);
register_function("cosh", 1, 1, NULL, TYPE_FLOAT);
register_function("tanh", 1, 1, NULL, TYPE_FLOAT);
register_function("exp", 1, 1, NULL, TYPE_FLOAT);
register_function("log", 1, 1, NULL, TYPE_FLOAT);
register_function("log10", 1, 1, NULL, TYPE_FLOAT);
register_function("ceil", 1, 1, NULL, TYPE_FLOAT);
register_function("floor", 1, 1, NULL, TYPE_FLOAT);
register_function("trunc", 1, 1, NULL, TYPE_FLOAT);
}
void
register_list(void)
{
register_function("value_bytes", 1, 1, NULL, TYPE_ANY);
register_function("value_hash", 1, 1, NULL, TYPE_ANY);
register_function("string_hash", 1, 1, NULL, TYPE_STR);
register_function("binary_hash", 1, 1, NULL, TYPE_STR);
register_function("decode_binary", 1, 2, NULL,
TYPE_STR, TYPE_ANY);
register_function("encode_binary", 0, -1, NULL);
/* list */
register_function("length", 1, 1, NULL, TYPE_ANY);
register_function("setadd", 2, 2, NULL, TYPE_LIST, TYPE_ANY);
register_function("setremove", 2, 2, NULL, TYPE_LIST, TYPE_ANY);
register_function("listappend", 2, 3, NULL,
TYPE_LIST, TYPE_ANY, TYPE_INT);
register_function("listinsert", 2, 3, NULL,
TYPE_LIST, TYPE_ANY, TYPE_INT);
register_function("listdelete", 2, 2, NULL, TYPE_LIST, TYPE_INT);
register_function("listset", 3, 3, NULL,
TYPE_LIST, TYPE_ANY, TYPE_INT);
register_function("equal", 2, 2, NULL, TYPE_ANY, TYPE_ANY);
register_function("is_member", 2, 2, NULL, TYPE_ANY, TYPE_LIST);
/* string */
register_function("tostr", 0, -1, NULL);
register_function("toliteral", 1, 1, NULL, TYPE_ANY);
register_function("match", 2, 3, NULL, TYPE_STR, TYPE_STR, TYPE_ANY);
register_function("rmatch", 2, 3, NULL, TYPE_STR, TYPE_STR, TYPE_ANY);
register_function("substitute", 2, 2, NULL, TYPE_STR, TYPE_LIST);
register_function("crypt", 1, 2, NULL, TYPE_STR, TYPE_STR);
register_function("index", 2, 3, NULL, TYPE_STR, TYPE_STR, TYPE_ANY);
register_function("rindex", 2, 3, NULL, TYPE_STR, TYPE_STR, TYPE_ANY);
register_function("strcmp", 2, 2, NULL, TYPE_STR, TYPE_STR);
register_function("strsub", 3, 4, NULL,
TYPE_STR, TYPE_STR, TYPE_STR, TYPE_ANY);
}
char rcsid_functions[] = "$Id: functions.c,v 1.3 2005/01/21 12:07:31 jesse Exp $";
/*
* $Log: functions.c,v $
* Revision 1.3 2005/01/21 12:07:31 jesse
* Added FUP
*
* Revision 1.2 2004/02/26 14:16:02 jesse
* added martian functions
*
* Revision 1.1.1.1 2004/02/26 13:13:55 jesse
* Initial import into CVS
*
* Revision 1.5 1998/12/14 13:17:53 nop
* Merge UNSAFE_OPTS (ref fixups); fix Log tag placement to fit CVS whims
*
* Revision 1.4 1997/07/07 03:24:54 nop
* Merge UNSAFE_OPTS (r5) after extensive testing.
*
* Revision 1.3.2.2 1997/05/12 04:03:21 bjj
* This time for sure!
*
* Revision 1.3.2.1 1997/05/11 04:31:54 bjj
* Missed the place in bf_function_info where TYPE_* constants make it into
* the database. Masked off the complex flag in the obvious place.
*
* Revision 1.3 1997/03/03 05:03:50 nop
* steak2: move protectedness into builtin struct, load_server_options()
* now required for $server_options updates.
*
* Revision 1.2 1997/03/03 04:18:42 nop
* GNU Indent normalization
*
* Revision 1.1.1.1 1997/03/03 03:45:00 nop
* LambdaMOO 1.8.0p5
*
* Revision 2.6 1996/04/19 01:20:49 pavel
* Fixed bug in how $bf_FOO() verbs are called to override built-in functions.
* Added code to screen out the worst of the problems this bug could
* potentially cause. Added a way for built-in functions to tail-call a MOO
* verb (i.e., to do so without having to handle the verb's returned value).
* Release 1.8.0p4.
*
* Revision 2.5 1996/04/08 01:03:59 pavel
* Moved `protected' verb test to before arg-count and -type checks.
* Release 1.8.0p3.
*
* Revision 2.4 1996/03/19 07:13:04 pavel
* Fixed $bf_FOO() calling to work even for wizards. Release 1.8.0p2.
*
* Revision 2.3 1996/03/10 01:19:49 pavel
* Added support for calling $bf_FOO() when FOO() is wiz-only. Made
* verbs on #0 exempt from the wiz-only check. Release 1.8.0.
*
* Revision 2.2 1996/02/08 07:03:21 pavel
* Renamed err/logf() to errlog/oklog() and TYPE_NUM to TYPE_INT. Added
* support for TYPE_NUMERIC wildcard. Updated copyright notice for 1996.
* Release 1.8.0beta1.
*
* Revision 2.1 1996/01/16 07:27:37 pavel
* Added `function_info()' built-in function. Release 1.8.0alpha6.
*
* Revision 2.0 1995/11/30 04:23:49 pavel
* New baseline version, corresponding to release 1.8.0alpha1.
*
* Revision 1.14 1992/10/23 23:03:47 pavel
* Added copyright notice.
*
* Revision 1.13 1992/10/23 19:25:30 pavel
* Eliminated all uses of the useless macro NULL.
*
* Revision 1.12 1992/10/21 03:02:35 pavel
* Converted to use new automatic configuration system.
*
* Revision 1.11 1992/10/17 20:31:03 pavel
* Changed return-type of read_bi_func_data() from char to int, for systems
* that use unsigned chars.
* Global rename of strdup->str_dup, strref->str_ref, vardup->var_dup, and
* varref->var_ref.
* Fixed bug in register_common() that sometimes read the wrong number of
* argument-types from the argument list.
*
* Revision 1.10 1992/09/08 22:02:46 pjames
* Updated register_* list to call functions by their new names.
*
* Revision 1.9 1992/08/28 16:01:31 pjames
* Changed myfree(*, M_STRING) to free_str(*).
*
* Revision 1.8 1992/08/14 01:20:25 pavel
* Made it entirely clear how to add new MOO built-in functions to the server.
*
* Revision 1.7 1992/08/14 00:40:31 pavel
* Added missing #include "my-stdarg.h"...
*
* Revision 1.6 1992/08/14 00:01:03 pavel
* Converted to a typedef of `var_type' = `enum var_type'.
*
* Revision 1.5 1992/08/13 21:27:11 pjames
* Added register_bi_functions() which calls all procedures which
* register built in functions. To add another such procedure, just add
* it to the static list and to functions.h
*
* Revision 1.4 1992/08/12 01:48:42 pjames
* Builtin functions may now have as many arguments as desired.
*
* Revision 1.3 1992/08/10 17:39:46 pjames
* Changed registration method to use var_args. Changed 'next' field to
* be func_pc.
*
* Revision 1.2 1992/07/21 00:02:29 pavel
* Added rcsid_<filename-root> declaration to hold the RCS ident. string.
*
* Revision 1.1 1992/07/20 23:23:12 pavel
* Initial RCS-controlled version.
*/
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