Transifex autosync
[xonotic/xonotic-data.pk3dir.git] / qcsrc / common / command / rpn.qc
1 #include "rpn.qh"
2
3 #include <common/command/command.qh>
4
5
6 // ========================================
7 //  RPN command code, written by divVerent
8 //  Last updated: December 28th, 2011
9 // ========================================
10
11 string rpn_pop()
12 {
13         if(rpn_sp > 0) {
14                 --rpn_sp;
15                 return rpn_stack[rpn_sp];
16         } else {
17                 LOG_INFO("rpn: stack underflow");
18                 rpn_error = true;
19                 return "";
20         }
21 }
22 void rpn_push(string s)
23 {
24         if(rpn_sp < MAX_RPN_STACK) {
25                 rpn_stack[rpn_sp] = s;
26                 ++rpn_sp;
27         } else {
28                 LOG_INFO("rpn: stack overflow");
29                 rpn_error = true;
30         }
31 }
32 string rpn_get()
33 {
34         if(rpn_sp > 0) {
35                 return rpn_stack[rpn_sp - 1];
36         } else {
37                 LOG_INFO("rpn: empty stack");
38                 rpn_error = true;
39                 return "";
40         }
41 }
42 void rpn_set(string s)
43 {
44         if(rpn_sp > 0) {
45                 rpn_stack[rpn_sp - 1] = s;
46         } else {
47                 LOG_INFO("rpn: empty stack");
48                 rpn_error = true;
49         }
50 }
51
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)); }
56
57 SHUTDOWN(_rpndb)
58 {
59         if(rpn_db)
60                 db_close(rpn_db);
61 }
62
63 void GenericCommand_rpn(int request, int argc, string command)
64 {
65         switch(request)
66         {
67                 case CMD_REQUEST_COMMAND:
68                 {
69                         float i, j, f, f2, f3, rpnpos;
70                         //vector rgb;
71                         string s, s2, rpncmd;
72
73                         if(!rpn_db)
74                         {
75                                 rpn_db = db_create();
76                                 db_put(rpn_db, "stack.pointer", "0");
77                                 db_put(rpn_db, "stack.pos", "-1");
78                         }
79
80                         if(argc >= 2)
81                         {
82                                 rpn_sp = 0;
83                                 rpn_error = false;
84                                 for(rpnpos = 1; rpnpos < argc; ++rpnpos)
85                                 {
86                                         rpncmd = argv(rpnpos);
87                                         f = strlen(rpncmd);
88                                         if(rpncmd == "") {
89                                         } else if(stof(substring(rpncmd, 0, 1)) > 0) {
90                                                 rpn_push(rpncmd);
91                                         } else if(substring(rpncmd, 0, 1) == "0") {
92                                                 rpn_push(rpncmd);
93                                         } else if(f >= 2 && substring(rpncmd, 0, 1) == "+") {
94                                                 rpn_push(rpncmd);
95                                         } else if(f >= 2 && substring(rpncmd, 0, 1) == "-") {
96                                                 rpn_push(rpncmd);
97                                         } else if(f >= 2 && substring(rpncmd, 0, 1) == "/") {
98                                                 rpn_push(substring(rpncmd, 1, strlen(rpncmd) - 1));
99                                         } else if(rpncmd == "clear") {
100                                                 rpn_sp = 0;
101                                         } else if(rpncmd == "def" || rpncmd == "=") {
102                                                 s = rpn_pop();
103                                                 s2 = rpn_pop();
104
105                                                 if(s2 != "")
106                                                 {
107                                                         #ifdef MENUQC
108                                                         registercvar(s2, "", 0);
109                                                         #else
110                                                         registercvar(s2, "");
111                                                         #endif
112                                                         if(!rpn_error) // don't change cvars if a stack error had happened!
113                                                                 cvar_set(s2, s);
114                                                 }
115                                                 else
116                                                 {
117                                                         LOG_INFO("rpn: empty cvar name for 'def'");
118                                                         rpn_error = true;
119                                                 }
120                                         } else if(rpncmd == "defs" || rpncmd == "@") {
121                                                 s = "";
122                                                 i = rpn_popf();
123                                                 j = (i == 0);
124                                                 while(rpn_sp > 1 && (j || i > 0))
125                                                 {
126                                                         s = strcat("/", rpn_pop(), " ", s);
127                                                         --i;
128                                                 }
129                                                 s2 = rpn_pop();
130                                                 if(s2 != "")
131                                                 {
132                                                         #ifdef MENUQC
133                                                         registercvar(s2, "", 0);
134                                                         #else
135                                                         registercvar(s2, "");
136                                                         #endif
137                                                         if(!rpn_error) // don't change cvars if a stack error had happened!
138                                                                 cvar_set(s2, s);
139                                                 }
140                                                 else
141                                                 {
142                                                         LOG_INFO("rpn: empty cvar name for 'defs'");
143                                                         rpn_error = true;
144                                                 }
145                                         } else if(rpncmd == "load") {
146                                                 rpn_set(cvar_string(rpn_get()));
147                                         } else if(rpncmd == "exch") {
148                                                 s = rpn_pop();
149                                                 s2 = rpn_get();
150                                                 rpn_set(s);
151                                                 rpn_push(s2);
152                                         } else if(rpncmd == "dup") {
153                                                 rpn_push(rpn_get());
154                                         } else if(rpncmd == "pop") {
155                                                 rpn_pop();
156                                         } else if(rpncmd == "add" || rpncmd == "+") {
157                                                 f = rpn_popf();
158                                                 rpn_setf(rpn_getf() + f);
159                                         } else if(rpncmd == "sub" || rpncmd == "-") {
160                                                 f = rpn_popf();
161                                                 rpn_setf(rpn_getf() - f);
162                                         } else if(rpncmd == "mul" || rpncmd == "*") {
163                                                 f = rpn_popf();
164                                                 rpn_setf(rpn_getf() * f);
165                                         } else if(rpncmd == "div" || rpncmd == "/") {
166                                                 f = rpn_popf();
167                                                 rpn_setf(rpn_getf() / f);
168                                         } else if(rpncmd == "mod" || rpncmd == "%") {
169                                                 f = rpn_popf();
170                                                 f2 = rpn_getf();
171                                                 rpn_setf(f2 - f * floor(f2 / f));
172                                         } else if(rpncmd == "pow" || rpncmd == "**") {
173                                                 f = rpn_popf();
174                                                 rpn_setf(rpn_getf() ** f);
175                                         } else if(rpncmd == "bitand" || rpncmd == "&") {
176                                                 f = rpn_popf();
177                                                 rpn_setf(rpn_getf() & f);
178                                         } else if(rpncmd == "bitor" || rpncmd == "|") {
179                                                 f = rpn_popf();
180                                                 rpn_setf(rpn_getf() | f);
181                                         } else if(rpncmd == "bitxor" || rpncmd == "^") {
182                                                 f = rpn_popf();
183                                                 rpn_setf(rpn_getf() ^ f);
184                                         } else if(rpncmd == "and" || rpncmd == "&&") {
185                                                 f = rpn_popf();
186                                                 rpn_setf(rpn_getf() && f);
187                                         } else if(rpncmd == "or" || rpncmd == "||") {
188                                                 f = rpn_popf();
189                                                 rpn_setf(rpn_getf() || f);
190                                         } else if(rpncmd == "xor" || rpncmd == "^^") {
191                                                 f = rpn_popf();
192                                                 rpn_setf(!rpn_getf() != !f);
193                                         } else if(rpncmd == "bitnot") {
194                                                 rpn_setf(~rpn_popf());
195                                         } else if(rpncmd == "not") {
196                                                 rpn_setf(!rpn_popf());
197                                         } else if(rpncmd == "abs") {
198                                                 rpn_setf(fabs(rpn_getf()));
199                                         } else if(rpncmd == "sgn") {
200                                                 f = rpn_getf();
201                                                 if(f < 0)
202                                                         rpn_set("-1");
203                                                 else if(f > 0)
204                                                         rpn_set("1");
205                                                 else
206                                                         rpn_set("0");
207                                         } else if(rpncmd == "neg" || rpncmd == "~") {
208                                                 rpn_setf(-rpn_getf());
209                                         } else if(rpncmd == "floor" || rpncmd == "f") {
210                                                 rpn_setf(floor(rpn_getf()));
211                                         } else if(rpncmd == "ceil" || rpncmd == "c") {
212                                                 rpn_setf(ceil(rpn_getf()));
213                                         } else if(rpncmd == "exp") {
214                                                 rpn_setf(exp(rpn_getf()));
215                                         } else if(rpncmd == "log") {
216                                                 rpn_setf(exp(rpn_getf()));
217                                         } else if(rpncmd == "sin") {
218                                                 rpn_setf(sin(rpn_getf()));
219                                         } else if(rpncmd == "cos") {
220                                                 rpn_setf(cos(rpn_getf()));
221                                         } else if(rpncmd == "max") {
222                                                 f = rpn_popf();
223                                                 f2 = rpn_getf();
224                                                 rpn_setf(max(f2, f));
225                                         } else if(rpncmd == "min") {
226                                                 f = rpn_popf();
227                                                 f2 = rpn_getf();
228                                                 rpn_setf(min(f2, f));
229                                         } else if(rpncmd == "bound") {
230                                                 f = rpn_popf();
231                                                 f2 = rpn_popf();
232                                                 f3 = rpn_getf();
233                                                 rpn_setf(bound(f3, f2, f));
234                                         } else if(rpncmd == "when") {
235                                                 f = rpn_popf();
236                                                 s = rpn_pop();
237                                                 s2 = rpn_get();
238                                                 if(f)
239                                                         rpn_set(s2);
240                                                 else
241                                                         rpn_set(s);
242                                         } else if(rpncmd == ">" || rpncmd == "gt") {
243                                                 f = rpn_popf();
244                                                 rpn_setf(rpn_getf() > f);
245                                         } else if(rpncmd == "<" || rpncmd == "lt") {
246                                                 f = rpn_popf();
247                                                 rpn_setf(rpn_getf() < f);
248                                         } else if(rpncmd == "==" || rpncmd == "eq") {
249                                                 f = rpn_popf();
250                                                 rpn_setf(rpn_getf() == f);
251                                         } else if(rpncmd == ">=" || rpncmd == "ge") {
252                                                 f = rpn_popf();
253                                                 rpn_setf(rpn_getf() >= f);
254                                         } else if(rpncmd == "<=" || rpncmd == "le") {
255                                                 f = rpn_popf();
256                                                 rpn_setf(rpn_getf() <= f);
257                                         } else if(rpncmd == "!=" || rpncmd == "ne") {
258                                                 f = rpn_popf();
259                                                 rpn_setf(rpn_getf() != f);
260                                         } else if(rpncmd == "rand") {
261                                                 rpn_setf(ceil(random() * rpn_getf()) - 1);
262                                         } else if(rpncmd == "crc16") {
263                                                 rpn_setf(crc16(false, rpn_get()));
264                                         } else if(rpncmd == "put") {
265                                                 s2 = rpn_pop();
266                                                 if (!rpn_error)
267                                                 {
268                                                         s = rpn_pop();
269                                                         if (!rpn_error)
270                                                                 db_put(rpn_db, s, s2);
271                                                 }
272                                         } else if(rpncmd == "get") {
273                                                 s = rpn_pop();
274                                                 if (!rpn_error)
275                                                         rpn_push(db_get(rpn_db, s));
276                                         } else if(rpncmd == "dbpush") {
277                                                 s = rpn_pop();
278                                                 if(!rpn_error)
279                                                 {
280                                                         i = stof(db_get(rpn_db, "stack.pointer"));
281                                                         db_put(rpn_db, "stack.pointer", ftos(i+1));
282                                                         db_put(rpn_db, strcat("stack.", ftos(i)), s);
283                                                         if(!i)
284                                                                 db_put(rpn_db, "stack.pos", "0");
285                                                 }
286                                         } else if(rpncmd == "dbpop") {
287                                                 i = stof(db_get(rpn_db, "stack.pointer"));
288                                                 if(i)
289                                                 {
290                                                         s = ftos(i-1);
291                                                         db_put(rpn_db, "stack.pointer", s);
292                                                         rpn_push(db_get(rpn_db, strcat("stack.", s)));
293                                                         j = stof(db_get(rpn_db, "stack.pos"));
294                                                         if(j >= i)
295                                                                 db_put(rpn_db, "stack.pos", ftos(i-2));
296                                                 } else {
297                                                         rpn_error = 1;
298                                                         LOG_INFO("rpn: database underflow");
299                                                 }
300                                         } else if(rpncmd == "dbget") {
301
302                                                 i = stof(db_get(rpn_db, "stack.pointer"));
303                                                 if(i)
304                                                 {
305                                                         rpn_push(db_get(rpn_db, strcat("stack.", ftos(i-1))));
306                                                 } else {
307                                                         rpn_error = 1;
308                                                         LOG_INFO("rpn: database empty");
309                                                 }
310                                         } else if(rpncmd == "dblen") {
311                                                 rpn_push(db_get(rpn_db, "stack.pointer"));
312                                         } else if(rpncmd == "dbclr") {
313                                                 db_close(rpn_db);
314                                                 rpn_db = db_create();
315                                                 db_put(rpn_db, "stack.pointer", "0");
316                                                 db_put(rpn_db, "stack.pos", "-1");
317                                         } else if(rpncmd == "dbsave") {
318                                                 s = rpn_pop();
319                                                 if(!rpn_error)
320                                                         db_save(rpn_db, s);
321                                         } else if(rpncmd == "dbload") {
322                                                 s = rpn_pop();
323                                                 if(!rpn_error)
324                                                 {
325                                                         db_close(rpn_db);
326                                                         rpn_db = db_load(s);
327                                                 }
328                                         } else if(rpncmd == "dbins") {
329                                                 s = rpn_pop();
330                                                 if(!rpn_error)
331                                                         //if(rpn_sp > 0)
332                                                 {
333                                                         j = stof(db_get(rpn_db, "stack.pointer"));
334                                                         i = stof(db_get(rpn_db, "stack.pos"));
335
336                                                         if(i < 0)
337                                                         {
338                                                                 i = 0;
339                                                                 db_put(rpn_db, "stack.pos", "0");
340                                                         }
341
342                                                         db_put(rpn_db, "stack.pointer", ftos(j+1));
343                                                         for(--j; j >= i; --j)
344                                                         {
345                                                                 db_put(rpn_db, strcat("stack.", ftos(j+1)),
346                                                                                          db_get(rpn_db, (strcat("stack.", ftos(j))))
347                                                                         );
348                                                         }
349                                                         db_put(rpn_db, strcat("stack.", ftos(i)), s);
350                                                 }
351                                         } else if(rpncmd == "dbext") {
352                                                 j = stof(db_get(rpn_db, "stack.pointer"));
353                                                 i = stof(db_get(rpn_db, "stack.pos"));
354                                                 if(!j)
355                                                 {
356                                                         rpn_error = true;
357                                                         LOG_INFO("rpn: empty database");
358                                                 } else {
359                                                         --j;
360                                                         rpn_push(db_get(rpn_db, strcat("stack.", ftos(i))));
361                                                         db_put(rpn_db, "stack.pointer", ftos(j));
362                                                         if(i == j)
363                                                         {
364                                                                 db_put(rpn_db, "stack.pos", ftos(j-1));
365                                                         } else {
366                                                                 while(i < j)
367                                                                 {
368                                                                         db_put(rpn_db, strcat("stack.", ftos(i)),
369                                                                                                  db_get(rpn_db, (strcat("stack.", ftos(i+1))))
370                                                                                 );
371                                                                         ++i;
372                                                                 }
373                                                         }
374                                                 }
375                                         } else if(rpncmd == "dbread") {
376                                                 s = db_get(rpn_db, "stack.pos");
377                                                 if(stof(s) >= 0)
378                                                 {
379                                                         rpn_push(db_get(rpn_db, strcat("stack.", s)));
380                                                 } else {
381                                                         rpn_error = 1;
382                                                         LOG_INFO("rpn: empty database");
383                                                 }
384                                         } else if(rpncmd == "dbat") {
385                                                 rpn_push(db_get(rpn_db, "stack.pos"));
386                                         } else if(rpncmd == "dbmov") {
387                                                 j = stof(db_get(rpn_db, "stack.pointer"));
388                                                 i = stof(db_get(rpn_db, "stack.pos"));
389                                                 i += rpn_popf();
390                                                 if(!rpn_error)
391                                                 {
392                                                         if(i < 0 || i >= j)
393                                                         {
394                                                                 LOG_INFO("rpn: database cursor out of bounds");
395                                                                 rpn_error = true;
396                                                         }
397                                                         if(!rpn_error)
398                                                         {
399                                                                 db_put(rpn_db, "stack.pos", ftos(i));
400                                                         }
401                                                 }
402                                         } else if(rpncmd == "dbgoto") {
403                                                 s = rpn_pop();
404                                                 j = stof(db_get(rpn_db, "stack.pointer"));
405                                                 if(!j)
406                                                 {
407                                                         rpn_error = true;
408                                                         LOG_INFO("rpn: empty database, cannot move cursor");
409                                                 }
410                                                 if(!rpn_error)
411                                                 {
412                                                         if(s == "end")
413                                                                 i = stof(db_get(rpn_db, "stack.pointer"))-1;
414                                                         else if(s == "beg")
415                                                                 i = 0;
416                                                         else
417                                                                 i = stof(s);
418
419                                                         j = stof(db_get(rpn_db, "stack.pointer"));
420                                                         if(i < 0 || i >= j)
421                                                         {
422                                                                 LOG_INFO("rpn: database cursor destination out of bounds");
423                                                                 rpn_error = true;
424                                                         }
425                                                         if(!rpn_error)
426                                                         {
427                                                                 db_put(rpn_db, "stack.pos", ftos(i));
428                                                         }
429                                                 }
430                                         } else if(rpncmd == "union") {
431                                                 // s s2 union
432                                                 s2 = rpn_pop();
433                                                 s = rpn_get();
434                                                 f = tokenize_console(s);
435                                                 f2 = tokenize_console(strcat(s, " ", s2));
436                                                 // tokens 0..(f-1) represent s
437                                                 // tokens f..f2 represent s2
438                                                 // UNION: add all tokens to s that are in s2 but not in s
439                                                 s = "";
440                                                 for(i = 0; i < f; ++i)
441                                                         s = strcat(s, " ", argv(i));
442                                                 for(i = f; i < f2; ++i) {
443                                                         for(j = 0; j < f; ++j)
444                                                                 if(argv(i) == argv(j))
445                                                                         goto skip_union;
446                                                         s = strcat(s, " ", argv(i));
447 LABEL(skip_union)
448                                                 }
449                                                 if(substring(s, 0, 1) == " ")
450                                                         s = substring(s, 1, 99999);
451                                                 rpn_set(s);
452                                                 tokenize_console(command);
453                                         } else if(rpncmd == "intersection") {
454                                                 // s s2 intersection
455                                                 s2 = rpn_pop();
456                                                 s = rpn_get();
457                                                 f = tokenize_console(s);
458                                                 f2 = tokenize_console(strcat(s, " ", s2));
459                                                 // tokens 0..(f-1) represent s
460                                                 // tokens f..f2 represent s2
461                                                 // INTERSECTION: keep only the tokens from s that are also in s2
462                                                 s = "";
463                                                 for(i = 0; i < f; ++i) {
464                                                         for(j = f; j < f2; ++j)
465                                                                 if(argv(i) == argv(j))
466                                                                 {
467                                                                         s = strcat(s, " ", argv(i));
468                                                                         break;
469                                                                 }
470                                                 }
471                                                 if(substring(s, 0, 1) == " ")
472                                                         s = substring(s, 1, 99999);
473                                                 rpn_set(s);
474                                                 tokenize_console(command);
475                                         } else if(rpncmd == "difference") {
476                                                 // s s2 difference
477                                                 s2 = rpn_pop();
478                                                 s = rpn_get();
479                                                 f = tokenize_console(s);
480                                                 f2 = tokenize_console(strcat(s, " ", s2));
481                                                 // tokens 0..(f-1) represent s
482                                                 // tokens f..f2 represent s2
483                                                 // DIFFERENCE: keep only the tokens from s that are not in s2
484                                                 s = "";
485                                                 for(i = 0; i < f; ++i) {
486                                                         for(j = f; j < f2; ++j)
487                                                                 if(argv(i) == argv(j))
488                                                                         goto skip_difference;
489                                                         s = strcat(s, " ", argv(i));
490 LABEL(skip_difference)
491                                                 }
492                                                 if(substring(s, 0, 1) == " ")
493                                                         s = substring(s, 1, 99999);
494                                                 rpn_set(s);
495                                                 tokenize_console(command);
496                                         } else if(rpncmd == "shuffle") {
497                                                 // s shuffle
498                                                 s = rpn_get();
499                                                 f = tokenize_console(s);
500
501                                                 for(i = 0; i < f - 1; ++i) {
502                                                         // move a random item from i..f-1 to position i
503                                                         s = "";
504                                                         f2 = floor(random() * (f - i) + i);
505                                                         for(j = 0; j < i; ++j)
506                                                                 s = strcat(s, " ", argv(j));
507                                                         s = strcat(s, " ", argv(f2));
508                                                         for(j = i; j < f; ++j)
509                                                                 if(j != f2)
510                                                                         s = strcat(s, " ", argv(j));
511                                                         f = tokenize_console(s);
512                                                 }
513
514                                                 if(substring(s, 0, 1) == " ")
515                                                         s = substring(s, 1, 99999);
516                                                 rpn_set(s);
517                                                 tokenize_console(command);
518                                         } else if(rpncmd == "fexists_assert") {
519                                                 s = rpn_pop();
520                                                 if(!rpn_error)
521                                                 {
522                                                         if (!fexists(s))
523                                                         {
524                                                                 LOG_INFO("rpn: ERROR: ", s, " does not exist!");
525                                                                 rpn_error = true;
526                                                         }
527                                                 }
528                                         } else if(rpncmd == "fexists") {
529                                                 s = rpn_get();
530                                                 if(!rpn_error)
531                                                 {
532                                                         if (fexists(s))
533                                                                 rpn_setf(1);
534                                                         else
535                                                                 rpn_setf(0);
536                                                 }
537                                         } else if(rpncmd == "localtime") {
538                                                 rpn_set(strftime(true, rpn_get()));
539                                         } else if(rpncmd == "gmtime") {
540                                                 rpn_set(strftime(false, rpn_get()));
541                                         } else if(rpncmd == "time") {
542                                                 rpn_pushf(time);
543                                         } else if(rpncmd == "digest") {
544                                                 s = rpn_pop();
545                                                 rpn_set(digest_hex(s, rpn_get()));
546                                         } else if(rpncmd == "sprintf1s") {
547                                                 s = rpn_pop();
548                                                 rpn_set(sprintf(s, rpn_get()));
549                                         } else if(rpncmd == "eval") {
550                                                 s = rpn_pop();
551                                                 command = strcat(s, substring(command, argv_end_index(rpnpos), -1));
552                                                 argc = tokenize_console(command);
553                                                 rpnpos = -1;
554                                         } else {
555                                                 rpn_push(cvar_string(rpncmd));
556                                         }
557                                         if(rpn_error)
558                                                 break;
559                                 }
560                                 while(rpn_sp > 0)
561                                 {
562                                         s = rpn_pop();
563                                         LOG_INFO("rpn: still on stack: ", s);
564                                 }
565                         }
566
567                         return;
568                 }
569
570                 default:
571                 case CMD_REQUEST_USAGE:
572                 {
573                         LOG_HELP("Usage:^3 ", GetProgramCommandPrefix(), " rpn <expression>");
574                         LOG_HELP("    Operator description (x: string, s: set, f: float):");
575                         LOG_HELP("    x pop ----------------------------->     : removes the top");
576                         LOG_HELP("    x dup -----------------------------> x x : duplicates the top");
577                         LOG_HELP("    x x exch --------------------------> x x : swap the top two");
578                         LOG_HELP("    /cvarname load --------------------> x   : loads a cvar");
579                         LOG_HELP("    /cvarname x def ------------------->     : writes to a cvar");
580                         LOG_HELP("    f f add|sub|mul|div|mod|pow -------> f   : adds/... two numbers");
581                         LOG_HELP("    f f and|or|xor|bitand|bitor|bitxor > f   : logical and bitwise operations");
582                         LOG_HELP("    f f eq|ne|gt|ge|lt|le|max|min -----> f   : compares two numbers");
583                         LOG_HELP("    f neg|abs|sgn|rand|floor|ceil------> f   : negates/... a number");
584                         LOG_HELP("    f not|bitnot ----------------------> f   : logical and bitwise negation");
585                         LOG_HELP("    f exp|log|sin|cos -----------------> f   : exponential function & Co.");
586                         LOG_HELP("    f f f bound -----------------------> f   : bounds the middle number");
587                         LOG_HELP("    f1 f2 b when ----------------------> f   : f1 if b, f2 otherwise");
588                         LOG_HELP("    s s union|intersection|difference -> s   : set operations");
589                         LOG_HELP("    s shuffle -------------------------> s   : randomly arrange elements");
590                         LOG_HELP("    /key /value put ------------------->     : set a database key");
591                         LOG_HELP("    /key get --------------------------> s   : get a database value");
592                         LOG_HELP("    x dbpush -------------------------->     : pushes the top onto the database");
593                         LOG_HELP("    dbpop|dbget -----------------------> x   : removes/reads DB's top");
594                         LOG_HELP("    dblen|dbat ------------------------> f   : gets the DB's size/cursor pos");
595                         LOG_HELP("    dbclr ----------------------------->     : clear the DB");
596                         LOG_HELP("    s dbsave|dbload-------------------->     : save/load the DB to/from a file");
597                         LOG_HELP("    x dbins --------------------------->     : moves the top into the DB");
598                         LOG_HELP("    dbext|dbread ----------------------> x   : extract/get from the DB's cursor");
599                         LOG_HELP("    f dbmov|dbgoto -------------------->     : move or set the DB's cursor");
600                         LOG_HELP("    s localtime -----------------------> s   : formats the current local time");
601                         LOG_HELP("    s gmtime --------------------------> s   : formats the current UTC time");
602                         LOG_HELP("    time ------------------------------> f   : seconds since VM start");
603                         LOG_HELP("    s /MD4 digest ---------------------> s   : MD4 digest");
604                         LOG_HELP("    s /SHA256 digest ------------------> s   : SHA256 digest");
605                         LOG_HELP("    s /formatstring sprintf1s ---------> s   : sprintf with 1 string (pad, cut)");
606                         LOG_HELP("    s eval ---------------------------->     : does something eval");
607                         LOG_HELP("    Set operations operate on 'such''strings'.");
608                         LOG_HELP("    Unknown tokens insert their cvar value.");
609                         return;
610                 }
611         }
612 }