4 #include "../../warpzonelib/mathlib.qh"
6 // ========================================
7 // RPN command code, written by divVerent
8 // Last updated: December 28th, 2011
9 // ========================================
15 return rpn_stack[rpn_sp];
17 print("rpn: stack underflow\n");
22 void rpn_push(string s)
24 if(rpn_sp < MAX_RPN_STACK) {
25 rpn_stack[rpn_sp] = s;
28 print("rpn: stack overflow\n");
35 return rpn_stack[rpn_sp - 1];
37 print("rpn: empty stack\n");
42 void rpn_set(string s)
45 rpn_stack[rpn_sp - 1] = s;
47 print("rpn: empty stack\n");
52 float rpn_getf() { return stof(rpn_get()); }
53 float rpn_popf() { return stof(rpn_pop()); }
54 void rpn_pushf(float f) { return rpn_push(sprintf("%.9g", f)); }
55 void rpn_setf(float f) { return rpn_set(sprintf("%.9g", f)); }
57 void GenericCommand_rpn(float request, float argc, string command)
61 case CMD_REQUEST_COMMAND:
63 float i, j, f, f2, f3, rpnpos;
70 db_put(rpn_db, "stack.pointer", "0");
71 db_put(rpn_db, "stack.pos", "-1");
78 for(rpnpos = 1; rpnpos < argc; ++rpnpos)
80 rpncmd = argv(rpnpos);
83 } else if(stof(substring(rpncmd, 0, 1)) > 0) {
85 } else if(substring(rpncmd, 0, 1) == "0") {
87 } else if(f >= 2 && substring(rpncmd, 0, 1) == "+") {
89 } else if(f >= 2 && substring(rpncmd, 0, 1) == "-") {
91 } else if(f >= 2 && substring(rpncmd, 0, 1) == "/") {
92 rpn_push(substring(rpncmd, 1, strlen(rpncmd) - 1));
93 } else if(rpncmd == "clear") {
95 } else if(rpncmd == "def" || rpncmd == "=") {
102 registercvar(s2, "", 0);
104 registercvar(s2, "");
106 if(!rpn_error) // don't change cvars if a stack error had happened!
111 print("rpn: empty cvar name for 'def'\n");
114 } else if(rpncmd == "defs" || rpncmd == "@") {
118 while(rpn_sp > 1 && (j || i > 0))
120 s = strcat("/", rpn_pop(), " ", s);
127 registercvar(s2, "", 0);
129 registercvar(s2, "");
131 if(!rpn_error) // don't change cvars if a stack error had happened!
136 print("rpn: empty cvar name for 'defs'\n");
139 } else if(rpncmd == "load") {
140 rpn_set(cvar_string(rpn_get()));
141 } else if(rpncmd == "exch") {
146 } else if(rpncmd == "dup") {
148 } else if(rpncmd == "pop") {
150 } else if(rpncmd == "add" || rpncmd == "+") {
152 rpn_setf(rpn_getf() + f);
153 } else if(rpncmd == "sub" || rpncmd == "-") {
155 rpn_setf(rpn_getf() - f);
156 } else if(rpncmd == "mul" || rpncmd == "*") {
158 rpn_setf(rpn_getf() * f);
159 } else if(rpncmd == "div" || rpncmd == "/") {
161 rpn_setf(rpn_getf() / f);
162 } else if(rpncmd == "mod" || rpncmd == "%") {
165 rpn_setf(f2 - f * floor(f2 / f));
166 } else if(rpncmd == "pow" || rpncmd == "**") {
168 rpn_setf(pow(rpn_getf(), f));
169 } else if(rpncmd == "bitand" || rpncmd == "&") {
171 rpn_setf(rpn_getf() & f);
172 } else if(rpncmd == "bitor" || rpncmd == "|") {
174 rpn_setf(rpn_getf() | f);
175 } else if(rpncmd == "bitxor" || rpncmd == "^") {
177 rpn_setf(rpn_getf() ^ f);
178 } else if(rpncmd == "and" || rpncmd == "&&") {
180 rpn_setf(rpn_getf() && f);
181 } else if(rpncmd == "or" || rpncmd == "||") {
183 rpn_setf(rpn_getf() || f);
184 } else if(rpncmd == "xor" || rpncmd == "^^") {
186 rpn_setf(!rpn_getf() != !f);
187 } else if(rpncmd == "bitnot") {
188 rpn_setf(~rpn_popf());
189 } else if(rpncmd == "not") {
190 rpn_setf(!rpn_popf());
191 } else if(rpncmd == "abs") {
192 rpn_setf(fabs(rpn_getf()));
193 } else if(rpncmd == "sgn") {
201 } else if(rpncmd == "neg" || rpncmd == "~") {
202 rpn_setf(-rpn_getf());
203 } else if(rpncmd == "floor" || rpncmd == "f") {
204 rpn_setf(floor(rpn_getf()));
205 } else if(rpncmd == "ceil" || rpncmd == "c") {
206 rpn_setf(ceil(rpn_getf()));
207 } else if(rpncmd == "exp") {
208 rpn_setf(exp(rpn_getf()));
209 } else if(rpncmd == "log") {
210 rpn_setf(exp(rpn_getf()));
211 } else if(rpncmd == "sin") {
212 rpn_setf(sin(rpn_getf()));
213 } else if(rpncmd == "cos") {
214 rpn_setf(cos(rpn_getf()));
215 } else if(rpncmd == "max") {
218 rpn_setf(max(f2, f));
219 } else if(rpncmd == "min") {
222 rpn_setf(min(f2, f));
223 } else if(rpncmd == "bound") {
227 rpn_setf(bound(f3, f2, f));
228 } else if(rpncmd == "when") {
236 } else if(rpncmd == ">" || rpncmd == "gt") {
238 rpn_setf(rpn_getf() > f);
239 } else if(rpncmd == "<" || rpncmd == "lt") {
241 rpn_setf(rpn_getf() < f);
242 } else if(rpncmd == "==" || rpncmd == "eq") {
244 rpn_setf(rpn_getf() == f);
245 } else if(rpncmd == ">=" || rpncmd == "ge") {
247 rpn_setf(rpn_getf() >= f);
248 } else if(rpncmd == "<=" || rpncmd == "le") {
250 rpn_setf(rpn_getf() <= f);
251 } else if(rpncmd == "!=" || rpncmd == "ne") {
253 rpn_setf(rpn_getf() != f);
254 } else if(rpncmd == "rand") {
255 rpn_setf(ceil(random() * rpn_getf()) - 1);
256 } else if(rpncmd == "crc16") {
257 rpn_setf(crc16(false, rpn_get()));
258 } else if(rpncmd == "put") {
264 db_put(rpn_db, s, s2);
266 } else if(rpncmd == "get") {
269 rpn_push(db_get(rpn_db, s));
270 } else if(rpncmd == "dbpush") {
274 i = stof(db_get(rpn_db, "stack.pointer"));
275 db_put(rpn_db, "stack.pointer", ftos(i+1));
276 db_put(rpn_db, strcat("stack.", ftos(i)), s);
278 db_put(rpn_db, "stack.pos", "0");
280 } else if(rpncmd == "dbpop") {
281 i = stof(db_get(rpn_db, "stack.pointer"));
285 db_put(rpn_db, "stack.pointer", s);
286 rpn_push(db_get(rpn_db, strcat("stack.", s)));
287 j = stof(db_get(rpn_db, "stack.pos"));
289 db_put(rpn_db, "stack.pos", ftos(i-2));
292 print("rpn: database underflow\n");
294 } else if(rpncmd == "dbget") {
296 i = stof(db_get(rpn_db, "stack.pointer"));
299 rpn_push(db_get(rpn_db, strcat("stack.", ftos(i-1))));
302 print("rpn: database empty\n");
304 } else if(rpncmd == "dblen") {
305 rpn_push(db_get(rpn_db, "stack.pointer"));
306 } else if(rpncmd == "dbclr") {
308 rpn_db = db_create();
309 db_put(rpn_db, "stack.pointer", "0");
310 db_put(rpn_db, "stack.pos", "-1");
311 } else if(rpncmd == "dbsave") {
315 } else if(rpncmd == "dbload") {
322 } else if(rpncmd == "dbins") {
327 j = stof(db_get(rpn_db, "stack.pointer"));
328 i = stof(db_get(rpn_db, "stack.pos"));
333 db_put(rpn_db, "stack.pos", "0");
336 db_put(rpn_db, "stack.pointer", ftos(j+1));
337 for(--j; j >= i; --j)
339 db_put(rpn_db, strcat("stack.", ftos(j+1)),
340 db_get(rpn_db, (strcat("stack.", ftos(j))))
343 db_put(rpn_db, strcat("stack.", ftos(i)), s);
345 } else if(rpncmd == "dbext") {
346 j = stof(db_get(rpn_db, "stack.pointer"));
347 i = stof(db_get(rpn_db, "stack.pos"));
351 print("rpn: empty database\n");
354 rpn_push(db_get(rpn_db, strcat("stack.", ftos(i))));
355 db_put(rpn_db, "stack.pointer", ftos(j));
358 db_put(rpn_db, "stack.pos", ftos(j-1));
362 db_put(rpn_db, strcat("stack.", ftos(i)),
363 db_get(rpn_db, (strcat("stack.", ftos(i+1))))
369 } else if(rpncmd == "dbread") {
370 s = db_get(rpn_db, "stack.pos");
373 rpn_push(db_get(rpn_db, strcat("stack.", s)));
376 print("rpn: empty database\n");
378 } else if(rpncmd == "dbat") {
379 rpn_push(db_get(rpn_db, "stack.pos"));
380 } else if(rpncmd == "dbmov") {
381 j = stof(db_get(rpn_db, "stack.pointer"));
382 i = stof(db_get(rpn_db, "stack.pos"));
388 print("rpn: database cursor out of bounds\n");
393 db_put(rpn_db, "stack.pos", ftos(i));
396 } else if(rpncmd == "dbgoto") {
398 j = stof(db_get(rpn_db, "stack.pointer"));
402 print("rpn: empty database, cannot move cursor\n");
407 i = stof(db_get(rpn_db, "stack.pointer"))-1;
413 j = stof(db_get(rpn_db, "stack.pointer"));
416 print("rpn: database cursor destination out of bounds\n");
421 db_put(rpn_db, "stack.pos", ftos(i));
424 } else if(rpncmd == "union") {
428 f = tokenize_console(s);
429 f2 = tokenize_console(strcat(s, " ", s2));
430 // tokens 0..(f-1) represent s
431 // tokens f..f2 represent s2
432 // UNION: add all tokens to s that are in s2 but not in s
434 for(i = 0; i < f; ++i)
435 s = strcat(s, " ", argv(i));
436 for(i = f; i < f2; ++i) {
437 for(j = 0; j < f; ++j)
438 if(argv(i) == argv(j))
440 s = strcat(s, " ", argv(i));
443 if(substring(s, 0, 1) == " ")
444 s = substring(s, 1, 99999);
446 tokenize_console(command);
447 } else if(rpncmd == "intersection") {
451 f = tokenize_console(s);
452 f2 = tokenize_console(strcat(s, " ", s2));
453 // tokens 0..(f-1) represent s
454 // tokens f..f2 represent s2
455 // INTERSECTION: keep only the tokens from s that are also in s2
457 for(i = 0; i < f; ++i) {
458 for(j = f; j < f2; ++j)
459 if(argv(i) == argv(j))
461 s = strcat(s, " ", argv(i));
465 if(substring(s, 0, 1) == " ")
466 s = substring(s, 1, 99999);
468 tokenize_console(command);
469 } else if(rpncmd == "difference") {
473 f = tokenize_console(s);
474 f2 = tokenize_console(strcat(s, " ", s2));
475 // tokens 0..(f-1) represent s
476 // tokens f..f2 represent s2
477 // DIFFERENCE: keep only the tokens from s that are not in s2
479 for(i = 0; i < f; ++i) {
480 for(j = f; j < f2; ++j)
481 if(argv(i) == argv(j))
482 goto skip_difference;
483 s = strcat(s, " ", argv(i));
486 if(substring(s, 0, 1) == " ")
487 s = substring(s, 1, 99999);
489 tokenize_console(command);
490 } else if(rpncmd == "shuffle") {
493 f = tokenize_console(s);
495 for(i = 0; i < f - 1; ++i) {
496 // move a random item from i..f-1 to position i
498 f2 = floor(random() * (f - i) + i);
499 for(j = 0; j < i; ++j)
500 s = strcat(s, " ", argv(j));
501 s = strcat(s, " ", argv(f2));
502 for(j = i; j < f; ++j)
504 s = strcat(s, " ", argv(j));
505 f = tokenize_console(s);
508 if(substring(s, 0, 1) == " ")
509 s = substring(s, 1, 99999);
511 tokenize_console(command);
512 } else if(rpncmd == "fexists_assert") {
518 print("rpn: ERROR: ", s, " does not exist!\n");
522 } else if(rpncmd == "fexists") {
531 } else if(rpncmd == "localtime") {
532 rpn_set(strftime(true, rpn_get()));
533 } else if(rpncmd == "gmtime") {
534 rpn_set(strftime(false, rpn_get()));
535 } else if(rpncmd == "time") {
537 } else if(rpncmd == "digest") {
539 rpn_set(digest_hex(s, rpn_get()));
540 } else if(rpncmd == "sprintf1s") {
542 rpn_set(sprintf(s, rpn_get()));
543 } else if(rpncmd == "eval") {
545 command = strcat(s, substring(command, argv_end_index(rpnpos), -1));
546 argc = tokenize_console(command);
549 rpn_push(cvar_string(rpncmd));
557 print("rpn: still on stack: ", s, "\n");
565 case CMD_REQUEST_USAGE:
567 print(strcat("\nUsage:^3 ", GetProgramCommandPrefix(), " rpn EXPRESSION...\n"));
568 print(" Operator description (x: string, s: set, f: float):\n");
569 print(" x pop -----------------------------> : removes the top\n");
570 print(" x dup -----------------------------> x x : duplicates the top\n");
571 print(" x x exch --------------------------> x x : swap the top two\n");
572 print(" /cvarname load --------------------> x : loads a cvar\n");
573 print(" /cvarname x def -------------------> : writes to a cvar\n");
574 print(" f f add|sub|mul|div|mod|pow -------> f : adds/... two numbers\n");
575 print(" f f and|or|xor|bitand|bitor|bitxor > f : logical and bitwise operations\n");
576 print(" f f eq|ne|gt|ge|lt|le|max|min -----> f : compares two numbers\n");
577 print(" f neg|abs|sgn|rand|floor|ceil------> f : negates/... a number\n");
578 print(" f not|bitnot ----------------------> f : logical and bitwise negation\n");
579 print(" f exp|log|sin|cos -----------------> f : exponential function & Co.\n");
580 print(" f f f bound -----------------------> f : bounds the middle number\n");
581 print(" f1 f2 b when ----------------------> f : f1 if b, f2 otherwise\n");
582 print(" s s union|intersection|difference -> s : set operations\n");
583 print(" s shuffle -------------------------> s : randomly arrange elements\n");
584 print(" /key /value put -------------------> : set a database key\n");
585 print(" /key get --------------------------> s : get a database value\n");
586 print(" x dbpush --------------------------> : pushes the top onto the database\n");
587 print(" dbpop|dbget -----------------------> x : removes/reads DB's top\n");
588 print(" dblen|dbat ------------------------> f : gets the DB's size/cursor pos\n");
589 print(" dbclr -----------------------------> : clear the DB\n");
590 print(" s dbsave|dbload--------------------> : save/load the DB to/from a file\n");
591 print(" x dbins ---------------------------> : moves the top into the DB\n");
592 print(" dbext|dbread ----------------------> x : extract/get from the DB's cursor\n");
593 print(" f dbmov|dbgoto --------------------> : move or set the DB's cursor\n");
594 print(" s localtime -----------------------> s : formats the current local time\n");
595 print(" s gmtime --------------------------> s : formats the current UTC time\n");
596 print(" time ------------------------------> f : seconds since VM start\n");
597 print(" s /MD4 digest ---------------------> s : MD4 digest\n");
598 print(" s /SHA256 digest ------------------> s : SHA256 digest\n");
599 print(" s /formatstring sprintf1s ---------> s : sprintf with 1 string (pad, cut)\n");
600 print(" s eval ----------------------------> : does something eval\n");
601 print(" Set operations operate on 'such''strings'.\n");
602 print(" Unknown tokens insert their cvar value.\n");