5 // ========================================
6 // RPN command code, written by divVerent
7 // Last updated: December 28th, 2011
8 // ========================================
14 return rpn_stack[rpn_sp];
16 LOG_INFO("rpn: stack underflow");
21 void rpn_push(string s)
23 if(rpn_sp < MAX_RPN_STACK) {
24 rpn_stack[rpn_sp] = s;
27 LOG_INFO("rpn: stack overflow");
34 return rpn_stack[rpn_sp - 1];
36 LOG_INFO("rpn: empty stack");
41 void rpn_set(string s)
44 rpn_stack[rpn_sp - 1] = s;
46 LOG_INFO("rpn: empty stack");
51 float rpn_getf() { return stof(rpn_get()); }
52 float rpn_popf() { return stof(rpn_pop()); }
53 void rpn_pushf(float f) { return rpn_push(sprintf("%.9g", f)); }
54 void rpn_setf(float f) { return rpn_set(sprintf("%.9g", f)); }
62 void GenericCommand_rpn(int request, int argc, string command)
66 case CMD_REQUEST_COMMAND:
68 float i, j, f, f2, f3, rpnpos;
75 db_put(rpn_db, "stack.pointer", "0");
76 db_put(rpn_db, "stack.pos", "-1");
83 for(rpnpos = 1; rpnpos < argc; ++rpnpos)
85 rpncmd = argv(rpnpos);
88 } else if(stof(substring(rpncmd, 0, 1)) > 0) {
90 } else if(substring(rpncmd, 0, 1) == "0") {
92 } else if(f >= 2 && substring(rpncmd, 0, 1) == "+") {
94 } else if(f >= 2 && substring(rpncmd, 0, 1) == "-") {
96 } else if(f >= 2 && substring(rpncmd, 0, 1) == "/") {
97 rpn_push(substring(rpncmd, 1, strlen(rpncmd) - 1));
98 } else if(rpncmd == "clear") {
100 } else if(rpncmd == "def" || rpncmd == "=") {
107 registercvar(s2, "", 0);
109 registercvar(s2, "");
111 if(!rpn_error) // don't change cvars if a stack error had happened!
116 LOG_INFO("rpn: empty cvar name for 'def'");
119 } else if(rpncmd == "defs" || rpncmd == "@") {
123 while(rpn_sp > 1 && (j || i > 0))
125 s = strcat("/", rpn_pop(), " ", s);
132 registercvar(s2, "", 0);
134 registercvar(s2, "");
136 if(!rpn_error) // don't change cvars if a stack error had happened!
141 LOG_INFO("rpn: empty cvar name for 'defs'");
144 } else if(rpncmd == "load") {
145 rpn_set(cvar_string(rpn_get()));
146 } else if(rpncmd == "exch") {
151 } else if(rpncmd == "dup") {
153 } else if(rpncmd == "pop") {
155 } else if(rpncmd == "add" || rpncmd == "+") {
157 rpn_setf(rpn_getf() + f);
158 } else if(rpncmd == "sub" || rpncmd == "-") {
160 rpn_setf(rpn_getf() - f);
161 } else if(rpncmd == "mul" || rpncmd == "*") {
163 rpn_setf(rpn_getf() * f);
164 } else if(rpncmd == "div" || rpncmd == "/") {
166 rpn_setf(rpn_getf() / f);
167 } else if(rpncmd == "mod" || rpncmd == "%") {
170 rpn_setf(f2 - f * floor(f2 / f));
171 } else if(rpncmd == "pow" || rpncmd == "**") {
173 rpn_setf(rpn_getf() ** f);
174 } else if(rpncmd == "bitand" || rpncmd == "&") {
176 rpn_setf(rpn_getf() & f);
177 } else if(rpncmd == "bitor" || rpncmd == "|") {
179 rpn_setf(rpn_getf() | f);
180 } else if(rpncmd == "bitxor" || rpncmd == "^") {
182 rpn_setf(rpn_getf() ^ f);
183 } else if(rpncmd == "and" || rpncmd == "&&") {
185 rpn_setf(rpn_getf() && f);
186 } else if(rpncmd == "or" || rpncmd == "||") {
188 rpn_setf(rpn_getf() || f);
189 } else if(rpncmd == "xor" || rpncmd == "^^") {
191 rpn_setf(!rpn_getf() != !f);
192 } else if(rpncmd == "bitnot") {
193 rpn_setf(~rpn_popf());
194 } else if(rpncmd == "not") {
195 rpn_setf(!rpn_popf());
196 } else if(rpncmd == "abs") {
197 rpn_setf(fabs(rpn_getf()));
198 } else if(rpncmd == "sgn") {
206 } else if(rpncmd == "neg" || rpncmd == "~") {
207 rpn_setf(-rpn_getf());
208 } else if(rpncmd == "floor" || rpncmd == "f") {
209 rpn_setf(floor(rpn_getf()));
210 } else if(rpncmd == "ceil" || rpncmd == "c") {
211 rpn_setf(ceil(rpn_getf()));
212 } else if(rpncmd == "exp") {
213 rpn_setf(exp(rpn_getf()));
214 } else if(rpncmd == "log") {
215 rpn_setf(exp(rpn_getf()));
216 } else if(rpncmd == "sin") {
217 rpn_setf(sin(rpn_getf()));
218 } else if(rpncmd == "cos") {
219 rpn_setf(cos(rpn_getf()));
220 } else if(rpncmd == "max") {
223 rpn_setf(max(f2, f));
224 } else if(rpncmd == "min") {
227 rpn_setf(min(f2, f));
228 } else if(rpncmd == "bound") {
232 rpn_setf(bound(f3, f2, f));
233 } else if(rpncmd == "when") {
241 } else if(rpncmd == ">" || rpncmd == "gt") {
243 rpn_setf(rpn_getf() > f);
244 } else if(rpncmd == "<" || rpncmd == "lt") {
246 rpn_setf(rpn_getf() < f);
247 } else if(rpncmd == "==" || rpncmd == "eq") {
249 rpn_setf(rpn_getf() == f);
250 } else if(rpncmd == ">=" || rpncmd == "ge") {
252 rpn_setf(rpn_getf() >= f);
253 } else if(rpncmd == "<=" || rpncmd == "le") {
255 rpn_setf(rpn_getf() <= f);
256 } else if(rpncmd == "!=" || rpncmd == "ne") {
258 rpn_setf(rpn_getf() != f);
259 } else if(rpncmd == "rand") {
260 rpn_setf(ceil(random() * rpn_getf()) - 1);
261 } else if(rpncmd == "crc16") {
262 rpn_setf(crc16(false, rpn_get()));
263 } else if(rpncmd == "put") {
269 db_put(rpn_db, s, s2);
271 } else if(rpncmd == "get") {
274 rpn_push(db_get(rpn_db, s));
275 } else if(rpncmd == "dbpush") {
279 i = stof(db_get(rpn_db, "stack.pointer"));
280 db_put(rpn_db, "stack.pointer", ftos(i+1));
281 db_put(rpn_db, strcat("stack.", ftos(i)), s);
283 db_put(rpn_db, "stack.pos", "0");
285 } else if(rpncmd == "dbpop") {
286 i = stof(db_get(rpn_db, "stack.pointer"));
290 db_put(rpn_db, "stack.pointer", s);
291 rpn_push(db_get(rpn_db, strcat("stack.", s)));
292 j = stof(db_get(rpn_db, "stack.pos"));
294 db_put(rpn_db, "stack.pos", ftos(i-2));
297 LOG_INFO("rpn: database underflow");
299 } else if(rpncmd == "dbget") {
301 i = stof(db_get(rpn_db, "stack.pointer"));
304 rpn_push(db_get(rpn_db, strcat("stack.", ftos(i-1))));
307 LOG_INFO("rpn: database empty");
309 } else if(rpncmd == "dblen") {
310 rpn_push(db_get(rpn_db, "stack.pointer"));
311 } else if(rpncmd == "dbclr") {
313 rpn_db = db_create();
314 db_put(rpn_db, "stack.pointer", "0");
315 db_put(rpn_db, "stack.pos", "-1");
316 } else if(rpncmd == "dbsave") {
320 } else if(rpncmd == "dbload") {
327 } else if(rpncmd == "dbins") {
332 j = stof(db_get(rpn_db, "stack.pointer"));
333 i = stof(db_get(rpn_db, "stack.pos"));
338 db_put(rpn_db, "stack.pos", "0");
341 db_put(rpn_db, "stack.pointer", ftos(j+1));
342 for(--j; j >= i; --j)
344 db_put(rpn_db, strcat("stack.", ftos(j+1)),
345 db_get(rpn_db, (strcat("stack.", ftos(j))))
348 db_put(rpn_db, strcat("stack.", ftos(i)), s);
350 } else if(rpncmd == "dbext") {
351 j = stof(db_get(rpn_db, "stack.pointer"));
352 i = stof(db_get(rpn_db, "stack.pos"));
356 LOG_INFO("rpn: empty database");
359 rpn_push(db_get(rpn_db, strcat("stack.", ftos(i))));
360 db_put(rpn_db, "stack.pointer", ftos(j));
363 db_put(rpn_db, "stack.pos", ftos(j-1));
367 db_put(rpn_db, strcat("stack.", ftos(i)),
368 db_get(rpn_db, (strcat("stack.", ftos(i+1))))
374 } else if(rpncmd == "dbread") {
375 s = db_get(rpn_db, "stack.pos");
378 rpn_push(db_get(rpn_db, strcat("stack.", s)));
381 LOG_INFO("rpn: empty database");
383 } else if(rpncmd == "dbat") {
384 rpn_push(db_get(rpn_db, "stack.pos"));
385 } else if(rpncmd == "dbmov") {
386 j = stof(db_get(rpn_db, "stack.pointer"));
387 i = stof(db_get(rpn_db, "stack.pos"));
393 LOG_INFO("rpn: database cursor out of bounds");
398 db_put(rpn_db, "stack.pos", ftos(i));
401 } else if(rpncmd == "dbgoto") {
403 j = stof(db_get(rpn_db, "stack.pointer"));
407 LOG_INFO("rpn: empty database, cannot move cursor");
412 i = stof(db_get(rpn_db, "stack.pointer"))-1;
418 j = stof(db_get(rpn_db, "stack.pointer"));
421 LOG_INFO("rpn: database cursor destination out of bounds");
426 db_put(rpn_db, "stack.pos", ftos(i));
429 } else if(rpncmd == "union") {
433 f = tokenize_console(s);
434 f2 = tokenize_console(strcat(s, " ", s2));
435 // tokens 0..(f-1) represent s
436 // tokens f..f2 represent s2
437 // UNION: add all tokens to s that are in s2 but not in s
439 for(i = 0; i < f; ++i)
440 s = strcat(s, " ", argv(i));
441 for(i = f; i < f2; ++i) {
442 for(j = 0; j < f; ++j)
443 if(argv(i) == argv(j))
445 s = strcat(s, " ", argv(i));
448 if(substring(s, 0, 1) == " ")
449 s = substring(s, 1, 99999);
451 tokenize_console(command);
452 } else if(rpncmd == "intersection") {
456 f = tokenize_console(s);
457 f2 = tokenize_console(strcat(s, " ", s2));
458 // tokens 0..(f-1) represent s
459 // tokens f..f2 represent s2
460 // INTERSECTION: keep only the tokens from s that are also in s2
462 for(i = 0; i < f; ++i) {
463 for(j = f; j < f2; ++j)
464 if(argv(i) == argv(j))
466 s = strcat(s, " ", argv(i));
470 if(substring(s, 0, 1) == " ")
471 s = substring(s, 1, 99999);
473 tokenize_console(command);
474 } else if(rpncmd == "difference") {
478 f = tokenize_console(s);
479 f2 = tokenize_console(strcat(s, " ", s2));
480 // tokens 0..(f-1) represent s
481 // tokens f..f2 represent s2
482 // DIFFERENCE: keep only the tokens from s that are not in s2
484 for(i = 0; i < f; ++i) {
485 for(j = f; j < f2; ++j)
486 if(argv(i) == argv(j))
487 goto skip_difference;
488 s = strcat(s, " ", argv(i));
489 LABEL(skip_difference)
491 if(substring(s, 0, 1) == " ")
492 s = substring(s, 1, 99999);
494 tokenize_console(command);
495 } else if(rpncmd == "shuffle") {
498 f = tokenize_console(s);
500 for(i = 0; i < f - 1; ++i) {
501 // move a random item from i..f-1 to position i
503 f2 = floor(random() * (f - i) + i);
504 for(j = 0; j < i; ++j)
505 s = strcat(s, " ", argv(j));
506 s = strcat(s, " ", argv(f2));
507 for(j = i; j < f; ++j)
509 s = strcat(s, " ", argv(j));
510 f = tokenize_console(s);
513 if(substring(s, 0, 1) == " ")
514 s = substring(s, 1, 99999);
516 tokenize_console(command);
517 } else if(rpncmd == "fexists_assert") {
523 LOG_INFO("rpn: ERROR: ", s, " does not exist!");
527 } else if(rpncmd == "fexists") {
536 } else if(rpncmd == "localtime") {
537 rpn_set(strftime(true, rpn_get()));
538 } else if(rpncmd == "gmtime") {
539 rpn_set(strftime(false, rpn_get()));
540 } else if(rpncmd == "time") {
542 } else if(rpncmd == "digest") {
544 rpn_set(digest_hex(s, rpn_get()));
545 } else if(rpncmd == "sprintf1s") {
547 rpn_set(sprintf(s, rpn_get()));
548 } else if(rpncmd == "eval") {
550 command = strcat(s, substring(command, argv_end_index(rpnpos), -1));
551 argc = tokenize_console(command);
554 rpn_push(cvar_string(rpncmd));
562 LOG_INFO("rpn: still on stack: ", s);
570 case CMD_REQUEST_USAGE:
572 LOG_HELP("Usage:^3 ", GetProgramCommandPrefix(), " rpn EXPRESSION...");
573 LOG_HELP(" Operator description (x: string, s: set, f: float):");
574 LOG_HELP(" x pop -----------------------------> : removes the top");
575 LOG_HELP(" x dup -----------------------------> x x : duplicates the top");
576 LOG_HELP(" x x exch --------------------------> x x : swap the top two");
577 LOG_HELP(" /cvarname load --------------------> x : loads a cvar");
578 LOG_HELP(" /cvarname x def -------------------> : writes to a cvar");
579 LOG_HELP(" f f add|sub|mul|div|mod|pow -------> f : adds/... two numbers");
580 LOG_HELP(" f f and|or|xor|bitand|bitor|bitxor > f : logical and bitwise operations");
581 LOG_HELP(" f f eq|ne|gt|ge|lt|le|max|min -----> f : compares two numbers");
582 LOG_HELP(" f neg|abs|sgn|rand|floor|ceil------> f : negates/... a number");
583 LOG_HELP(" f not|bitnot ----------------------> f : logical and bitwise negation");
584 LOG_HELP(" f exp|log|sin|cos -----------------> f : exponential function & Co.");
585 LOG_HELP(" f f f bound -----------------------> f : bounds the middle number");
586 LOG_HELP(" f1 f2 b when ----------------------> f : f1 if b, f2 otherwise");
587 LOG_HELP(" s s union|intersection|difference -> s : set operations");
588 LOG_HELP(" s shuffle -------------------------> s : randomly arrange elements");
589 LOG_HELP(" /key /value put -------------------> : set a database key");
590 LOG_HELP(" /key get --------------------------> s : get a database value");
591 LOG_HELP(" x dbpush --------------------------> : pushes the top onto the database");
592 LOG_HELP(" dbpop|dbget -----------------------> x : removes/reads DB's top");
593 LOG_HELP(" dblen|dbat ------------------------> f : gets the DB's size/cursor pos");
594 LOG_HELP(" dbclr -----------------------------> : clear the DB");
595 LOG_HELP(" s dbsave|dbload--------------------> : save/load the DB to/from a file");
596 LOG_HELP(" x dbins ---------------------------> : moves the top into the DB");
597 LOG_HELP(" dbext|dbread ----------------------> x : extract/get from the DB's cursor");
598 LOG_HELP(" f dbmov|dbgoto --------------------> : move or set the DB's cursor");
599 LOG_HELP(" s localtime -----------------------> s : formats the current local time");
600 LOG_HELP(" s gmtime --------------------------> s : formats the current UTC time");
601 LOG_HELP(" time ------------------------------> f : seconds since VM start");
602 LOG_HELP(" s /MD4 digest ---------------------> s : MD4 digest");
603 LOG_HELP(" s /SHA256 digest ------------------> s : SHA256 digest");
604 LOG_HELP(" s /formatstring sprintf1s ---------> s : sprintf with 1 string (pad, cut)");
605 LOG_HELP(" s eval ----------------------------> : does something eval");
606 LOG_HELP(" Set operations operate on 'such''strings'.");
607 LOG_HELP(" Unknown tokens insert their cvar value.");