when the engine is compiled with -DFILLALLCVARSWITHRUBBISH, there is an extra console...
[divverent/darkplaces.git] / cmd.c
1 /*
2 Copyright (C) 1996-1997 Id Software, Inc.
3
4 This program is free software; you can redistribute it and/or
5 modify it under the terms of the GNU General Public License
6 as published by the Free Software Foundation; either version 2
7 of the License, or (at your option) any later version.
8
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
12
13 See the GNU General Public License for more details.
14
15 You should have received a copy of the GNU General Public License
16 along with this program; if not, write to the Free Software
17 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
18
19 */
20 // cmd.c -- Quake script command processing module
21
22 #include "quakedef.h"
23
24 #define MAX_ALIAS_NAME  32
25 // this is the largest script file that can be executed in one step
26 // LordHavoc: inreased this from 8192 to 32768
27 // div0: increased this from 32k to 128k
28 // div0: increased this from 128k to 640k which ought to be enough for anyone
29 #define CMDBUFSIZE 655360
30 // maximum number of parameters to a command
31 #define MAX_ARGS 80
32 // maximum tokenizable commandline length (counting NUL terminations)
33 #define CMD_TOKENIZELENGTH (MAX_INPUTLINE + MAX_ARGS)
34
35 typedef struct cmdalias_s
36 {
37         struct cmdalias_s *next;
38         char name[MAX_ALIAS_NAME];
39         char *value;
40 } cmdalias_t;
41
42 static cmdalias_t *cmd_alias;
43
44 static qboolean cmd_wait;
45
46 static mempool_t *cmd_mempool;
47
48 static char cmd_tokenizebuffer[CMD_TOKENIZELENGTH];
49 static int cmd_tokenizebufferpos = 0;
50
51 //=============================================================================
52
53 /*
54 ============
55 Cmd_Wait_f
56
57 Causes execution of the remainder of the command buffer to be delayed until
58 next frame.  This allows commands like:
59 bind g "impulse 5 ; +attack ; wait ; -attack ; impulse 2"
60 ============
61 */
62 static void Cmd_Wait_f (void)
63 {
64         cmd_wait = true;
65 }
66
67 typedef struct cmddeferred_s
68 {
69         struct cmddeferred_s *next;
70         char *value;
71         double time;
72 } cmddeferred_t;
73
74 static cmddeferred_t *cmd_deferred_list = NULL;
75
76 /*
77 ============
78 Cmd_Defer_f
79
80 Cause a command to be executed after a delay.
81 ============
82 */
83 static void Cmd_Defer_f (void)
84 {
85         if(Cmd_Argc() == 1)
86         {
87                 double time = Sys_DoubleTime();
88                 cmddeferred_t *next = cmd_deferred_list;
89                 if(!next)
90                         Con_Printf("No commands are pending.\n");
91                 while(next)
92                 {
93                         Con_Printf("-> In %9.2f: %s\n", next->time-time, next->value);
94                         next = next->next;
95                 }
96         } else if(Cmd_Argc() == 2 && !strcasecmp("clear", Cmd_Argv(1)))
97         {
98                 while(cmd_deferred_list)
99                 {
100                         cmddeferred_t *cmd = cmd_deferred_list;
101                         cmd_deferred_list = cmd->next;
102                         Mem_Free(cmd->value);
103                         Mem_Free(cmd);
104                 }
105         } else if(Cmd_Argc() == 3)
106         {
107                 const char *value = Cmd_Argv(2);
108                 cmddeferred_t *defcmd = (cmddeferred_t*)Mem_Alloc(tempmempool, sizeof(*defcmd));
109                 size_t len = strlen(value);
110
111                 defcmd->time = Sys_DoubleTime() + atof(Cmd_Argv(1));
112                 defcmd->value = (char*)Mem_Alloc(tempmempool, len+1);
113                 memcpy(defcmd->value, value, len+1);
114                 defcmd->next = NULL;
115
116                 if(cmd_deferred_list)
117                 {
118                         cmddeferred_t *next = cmd_deferred_list;
119                         while(next->next)
120                                 next = next->next;
121                         next->next = defcmd;
122                 } else
123                         cmd_deferred_list = defcmd;
124                 /* Stupid me... this changes the order... so commands with the same delay go blub :S
125                   defcmd->next = cmd_deferred_list;
126                   cmd_deferred_list = defcmd;*/
127         } else {
128                 Con_Printf("usage: defer <seconds> <command>\n"
129                            "       defer clear\n");
130                 return;
131         }
132 }
133
134 /*
135 ============
136 Cmd_Centerprint_f
137
138 Print something to the center of the screen using SCR_Centerprint
139 ============
140 */
141 static void Cmd_Centerprint_f (void)
142 {
143         char msg[MAX_INPUTLINE];
144         unsigned int i, c, p;
145         c = Cmd_Argc();
146         if(c >= 2)
147         {
148                 strlcpy(msg, Cmd_Argv(1), sizeof(msg));
149                 for(i = 2; i < c; ++i)
150                 {
151                         strlcat(msg, " ", sizeof(msg));
152                         strlcat(msg, Cmd_Argv(i), sizeof(msg));
153                 }
154                 c = strlen(msg);
155                 for(p = 0, i = 0; i < c; ++i)
156                 {
157                         if(msg[i] == '\\')
158                         {
159                                 if(msg[i+1] == 'n')
160                                         msg[p++] = '\n';
161                                 else if(msg[i+1] == '\\')
162                                         msg[p++] = '\\';
163                                 else {
164                                         msg[p++] = '\\';
165                                         msg[p++] = msg[i+1];
166                                 }
167                                 ++i;
168                         } else {
169                                 msg[p++] = msg[i];
170                         }
171                 }
172                 msg[p] = '\0';
173                 SCR_CenterPrint(msg);
174         }
175 }
176
177 /*
178 =============================================================================
179
180                                                 COMMAND BUFFER
181
182 =============================================================================
183 */
184
185 static sizebuf_t        cmd_text;
186 static unsigned char            cmd_text_buf[CMDBUFSIZE];
187
188 /*
189 ============
190 Cbuf_AddText
191
192 Adds command text at the end of the buffer
193 ============
194 */
195 void Cbuf_AddText (const char *text)
196 {
197         int             l;
198
199         l = (int)strlen (text);
200
201         if (cmd_text.cursize + l >= cmd_text.maxsize)
202         {
203                 Con_Print("Cbuf_AddText: overflow\n");
204                 return;
205         }
206
207         SZ_Write (&cmd_text, (const unsigned char *)text, (int)strlen (text));
208 }
209
210
211 /*
212 ============
213 Cbuf_InsertText
214
215 Adds command text immediately after the current command
216 Adds a \n to the text
217 FIXME: actually change the command buffer to do less copying
218 ============
219 */
220 void Cbuf_InsertText (const char *text)
221 {
222         char    *temp;
223         int             templen;
224
225         // copy off any commands still remaining in the exec buffer
226         templen = cmd_text.cursize;
227         if (templen)
228         {
229                 temp = (char *)Mem_Alloc (tempmempool, templen);
230                 memcpy (temp, cmd_text.data, templen);
231                 SZ_Clear (&cmd_text);
232         }
233         else
234                 temp = NULL;
235
236         // add the entire text of the file
237         Cbuf_AddText (text);
238
239         // add the copied off data
240         if (temp != NULL)
241         {
242                 SZ_Write (&cmd_text, (const unsigned char *)temp, templen);
243                 Mem_Free (temp);
244         }
245 }
246
247 /*
248 ============
249 Cbuf_Execute_Deferred --blub
250 ============
251 */
252 void Cbuf_Execute_Deferred (void)
253 {
254         cmddeferred_t *cmd, *prev;
255         double time = Sys_DoubleTime();
256         prev = NULL;
257         cmd = cmd_deferred_list;
258         while(cmd)
259         {
260                 if(cmd->time <= time)
261                 {
262                         Cbuf_AddText(cmd->value);
263                         Cbuf_AddText(";\n");
264                         Mem_Free(cmd->value);
265
266                         if(prev) {
267                                 prev->next = cmd->next;
268                                 Mem_Free(cmd);
269                                 cmd = prev->next;
270                         } else {
271                                 cmd_deferred_list = cmd->next;
272                                 Mem_Free(cmd);
273                                 cmd = cmd_deferred_list;
274                         }
275                         continue;
276                 }
277                 prev = cmd;
278                 cmd = cmd->next;
279         }
280 }
281
282 /*
283 ============
284 Cbuf_Execute
285 ============
286 */
287 static void Cmd_PreprocessString( const char *intext, char *outtext, unsigned maxoutlen, cmdalias_t *alias );
288 void Cbuf_Execute (void)
289 {
290         int i;
291         char *text;
292         char line[MAX_INPUTLINE];
293         char preprocessed[MAX_INPUTLINE];
294         char *firstchar;
295         qboolean quotes, comment;
296
297         // LordHavoc: making sure the tokenizebuffer doesn't get filled up by repeated crashes
298         cmd_tokenizebufferpos = 0;
299
300         Cbuf_Execute_Deferred();
301         while (cmd_text.cursize)
302         {
303 // find a \n or ; line break
304                 text = (char *)cmd_text.data;
305
306                 quotes = false;
307                 comment = false;
308                 for (i=0 ; i < cmd_text.cursize ; i++)
309                 {
310                         if(!comment)
311                         {
312                                 if (text[i] == '"')
313                                         quotes = !quotes;
314
315                                 if(quotes)
316                                 {
317                                         // make sure i doesn't get > cursize which causes a negative
318                                         // size in memmove, which is fatal --blub
319                                         if (i < (cmd_text.cursize-1) && (text[i] == '\\' && (text[i+1] == '"' || text[i+1] == '\\')))
320                                                 i++;
321                                 }
322                                 else
323                                 {
324                                         if(text[i] == '/' && text[i + 1] == '/')
325                                                 comment = true;
326                                         if(text[i] == ';')
327                                                 break;  // don't break if inside a quoted string or comment
328                                 }
329                         }
330
331                         if (text[i] == '\r' || text[i] == '\n')
332                                 break;
333                 }
334
335                 // better than CRASHING on overlong input lines that may SOMEHOW enter the buffer
336                 if(i >= MAX_INPUTLINE)
337                 {
338                         Con_Printf("Warning: console input buffer had an overlong line. Ignored.\n");
339                         line[0] = 0;
340                 }
341                 else
342                 {
343                         memcpy (line, text, i);
344                         line[i] = 0;
345                 }
346
347 // delete the text from the command buffer and move remaining commands down
348 // this is necessary because commands (exec, alias) can insert data at the
349 // beginning of the text buffer
350
351                 if (i == cmd_text.cursize)
352                         cmd_text.cursize = 0;
353                 else
354                 {
355                         i++;
356                         cmd_text.cursize -= i;
357                         memmove (cmd_text.data, text+i, cmd_text.cursize);
358                 }
359
360 // execute the command line
361                 firstchar = line + strspn(line, " \t");
362                 if(
363                         (strncmp(firstchar, "alias", 5) || (firstchar[5] != ' ' && firstchar[5] != '\t'))
364                         &&
365                         (strncmp(firstchar, "bind", 4) || (firstchar[4] != ' ' && firstchar[4] != '\t'))
366                         &&
367                         (strncmp(firstchar, "in_bind", 7) || (firstchar[7] != ' ' && firstchar[7] != '\t'))
368                 )
369                 {
370                         Cmd_PreprocessString( line, preprocessed, sizeof(preprocessed), NULL );
371                         Cmd_ExecuteString (preprocessed, src_command);
372                 }
373                 else
374                 {
375                         Cmd_ExecuteString (line, src_command);
376                 }
377
378                 if (cmd_wait)
379                 {       // skip out while text still remains in buffer, leaving it
380                         // for next frame
381                         cmd_wait = false;
382                         break;
383                 }
384         }
385 }
386
387 /*
388 ==============================================================================
389
390                                                 SCRIPT COMMANDS
391
392 ==============================================================================
393 */
394
395 /*
396 ===============
397 Cmd_StuffCmds_f
398
399 Adds command line parameters as script statements
400 Commands lead with a +, and continue until a - or another +
401 quake +prog jctest.qp +cmd amlev1
402 quake -nosound +cmd amlev1
403 ===============
404 */
405 qboolean host_stuffcmdsrun = false;
406 void Cmd_StuffCmds_f (void)
407 {
408         int             i, j, l;
409         // this is for all commandline options combined (and is bounds checked)
410         char    build[MAX_INPUTLINE];
411
412         if (Cmd_Argc () != 1)
413         {
414                 Con_Print("stuffcmds : execute command line parameters\n");
415                 return;
416         }
417
418         // no reason to run the commandline arguments twice
419         if (host_stuffcmdsrun)
420                 return;
421
422         host_stuffcmdsrun = true;
423         build[0] = 0;
424         l = 0;
425         for (i = 0;i < com_argc;i++)
426         {
427                 if (com_argv[i] && com_argv[i][0] == '+' && (com_argv[i][1] < '0' || com_argv[i][1] > '9') && l + strlen(com_argv[i]) - 1 <= sizeof(build) - 1)
428                 {
429                         j = 1;
430                         while (com_argv[i][j])
431                                 build[l++] = com_argv[i][j++];
432                         i++;
433                         for (;i < com_argc;i++)
434                         {
435                                 if (!com_argv[i])
436                                         continue;
437                                 if ((com_argv[i][0] == '+' || com_argv[i][0] == '-') && (com_argv[i][1] < '0' || com_argv[i][1] > '9'))
438                                         break;
439                                 if (l + strlen(com_argv[i]) + 4 > sizeof(build) - 1)
440                                         break;
441                                 build[l++] = ' ';
442                                 if (strchr(com_argv[i], ' '))
443                                         build[l++] = '\"';
444                                 for (j = 0;com_argv[i][j];j++)
445                                         build[l++] = com_argv[i][j];
446                                 if (strchr(com_argv[i], ' '))
447                                         build[l++] = '\"';
448                         }
449                         build[l++] = '\n';
450                         i--;
451                 }
452         }
453         // now terminate the combined string and prepend it to the command buffer
454         // we already reserved space for the terminator
455         build[l++] = 0;
456         Cbuf_InsertText (build);
457 }
458
459
460 /*
461 ===============
462 Cmd_Exec_f
463 ===============
464 */
465 static void Cmd_Exec_f (void)
466 {
467         char *f;
468
469         if (Cmd_Argc () != 2)
470         {
471                 Con_Print("exec <filename> : execute a script file\n");
472                 return;
473         }
474
475         f = (char *)FS_LoadFile (Cmd_Argv(1), tempmempool, false, NULL);
476         if (!f)
477         {
478                 Con_Printf("couldn't exec %s\n",Cmd_Argv(1));
479                 return;
480         }
481         Con_Printf("execing %s\n",Cmd_Argv(1));
482
483         // if executing default.cfg for the first time, lock the cvar defaults
484         // it may seem backwards to insert this text BEFORE the default.cfg
485         // but Cbuf_InsertText inserts before, so this actually ends up after it.
486         if (!strcmp(Cmd_Argv(1), "default.cfg"))
487                 Cbuf_InsertText("\ncvar_lockdefaults\n");
488
489         // insert newline after the text to make sure the last line is terminated (some text editors omit the trailing newline)
490         // (note: insertion order here is backwards from execution order, so this adds it after the text, by calling it before...)
491         Cbuf_InsertText ("\n");
492         Cbuf_InsertText (f);
493         Mem_Free(f);
494 }
495
496
497 /*
498 ===============
499 Cmd_Echo_f
500
501 Just prints the rest of the line to the console
502 ===============
503 */
504 static void Cmd_Echo_f (void)
505 {
506         int             i;
507
508         for (i=1 ; i<Cmd_Argc() ; i++)
509                 Con_Printf("%s ",Cmd_Argv(i));
510         Con_Print("\n");
511 }
512
513 // DRESK - 5/14/06
514 // Support Doom3-style Toggle Console Command
515 /*
516 ===============
517 Cmd_Toggle_f
518
519 Toggles a specified console variable amongst the values specified (default is 0 and 1)
520 ===============
521 */
522 static void Cmd_Toggle_f(void)
523 {
524         // Acquire Number of Arguments
525         int nNumArgs = Cmd_Argc();
526
527         if(nNumArgs == 1)
528                 // No Arguments Specified; Print Usage
529                 Con_Print("Toggle Console Variable - Usage\n  toggle <variable> - toggles between 0 and 1\n  toggle <variable> <value> - toggles between 0 and <value>\n  toggle <variable> [string 1] [string 2]...[string n] - cycles through all strings\n");
530         else
531         { // Correct Arguments Specified
532                 // Acquire Potential CVar
533                 cvar_t* cvCVar = Cvar_FindVar( Cmd_Argv(1) );
534
535                 if(cvCVar != NULL)
536                 { // Valid CVar
537                         if(nNumArgs == 2)
538                         { // Default Usage
539                                 if(cvCVar->integer)
540                                         Cvar_SetValueQuick(cvCVar, 0);
541                                 else
542                                         Cvar_SetValueQuick(cvCVar, 1);
543                         }
544                         else
545                         if(nNumArgs == 3)
546                         { // 0 and Specified Usage
547                                 if(cvCVar->integer == atoi(Cmd_Argv(2) ) )
548                                         // CVar is Specified Value; // Reset to 0
549                                         Cvar_SetValueQuick(cvCVar, 0);
550                                 else
551                                 if(cvCVar->integer == 0)
552                                         // CVar is 0; Specify Value
553                                         Cvar_SetQuick(cvCVar, Cmd_Argv(2) );
554                                 else
555                                         // CVar does not match; Reset to 0
556                                         Cvar_SetValueQuick(cvCVar, 0);
557                         }
558                         else
559                         { // Variable Values Specified
560                                 int nCnt;
561                                 int bFound = 0;
562
563                                 for(nCnt = 2; nCnt < nNumArgs; nCnt++)
564                                 { // Cycle through Values
565                                         if( strcmp(cvCVar->string, Cmd_Argv(nCnt) ) == 0)
566                                         { // Current Value Located; Increment to Next
567                                                 if( (nCnt + 1) == nNumArgs)
568                                                         // Max Value Reached; Reset
569                                                         Cvar_SetQuick(cvCVar, Cmd_Argv(2) );
570                                                 else
571                                                         // Next Value
572                                                         Cvar_SetQuick(cvCVar, Cmd_Argv(nCnt + 1) );
573
574                                                 // End Loop
575                                                 nCnt = nNumArgs;
576                                                 // Assign Found
577                                                 bFound = 1;
578                                         }
579                                 }
580                                 if(!bFound)
581                                         // Value not Found; Reset to Original
582                                         Cvar_SetQuick(cvCVar, Cmd_Argv(2) );
583                         }
584
585                 }
586                 else
587                 { // Invalid CVar
588                         Con_Printf("ERROR : CVar '%s' not found\n", Cmd_Argv(1) );
589                 }
590         }
591 }
592
593 /*
594 ===============
595 Cmd_Alias_f
596
597 Creates a new command that executes a command string (possibly ; seperated)
598 ===============
599 */
600 static void Cmd_Alias_f (void)
601 {
602         cmdalias_t      *a;
603         char            cmd[MAX_INPUTLINE];
604         int                     i, c;
605         const char              *s;
606         size_t          alloclen;
607
608         if (Cmd_Argc() == 1)
609         {
610                 Con_Print("Current alias commands:\n");
611                 for (a = cmd_alias ; a ; a=a->next)
612                         Con_Printf("%s : %s", a->name, a->value);
613                 return;
614         }
615
616         s = Cmd_Argv(1);
617         if (strlen(s) >= MAX_ALIAS_NAME)
618         {
619                 Con_Print("Alias name is too long\n");
620                 return;
621         }
622
623         // if the alias already exists, reuse it
624         for (a = cmd_alias ; a ; a=a->next)
625         {
626                 if (!strcmp(s, a->name))
627                 {
628                         Z_Free (a->value);
629                         break;
630                 }
631         }
632
633         if (!a)
634         {
635                 cmdalias_t *prev, *current;
636
637                 a = (cmdalias_t *)Z_Malloc (sizeof(cmdalias_t));
638                 strlcpy (a->name, s, sizeof (a->name));
639                 // insert it at the right alphanumeric position
640                 for( prev = NULL, current = cmd_alias ; current && strcmp( current->name, a->name ) < 0 ; prev = current, current = current->next )
641                         ;
642                 if( prev ) {
643                         prev->next = a;
644                 } else {
645                         cmd_alias = a;
646                 }
647                 a->next = current;
648         }
649
650
651 // copy the rest of the command line
652         cmd[0] = 0;             // start out with a null string
653         c = Cmd_Argc();
654         for (i=2 ; i< c ; i++)
655         {
656                 strlcat (cmd, Cmd_Argv(i), sizeof (cmd));
657                 if (i != c)
658                         strlcat (cmd, " ", sizeof (cmd));
659         }
660         strlcat (cmd, "\n", sizeof (cmd));
661
662         alloclen = strlen (cmd) + 1;
663         if(alloclen >= 2)
664                 cmd[alloclen - 2] = '\n'; // to make sure a newline is appended even if too long
665         a->value = (char *)Z_Malloc (alloclen);
666         memcpy (a->value, cmd, alloclen);
667 }
668
669 /*
670 =============================================================================
671
672                                         COMMAND EXECUTION
673
674 =============================================================================
675 */
676
677 typedef struct cmd_function_s
678 {
679         struct cmd_function_s *next;
680         const char *name;
681         const char *description;
682         xcommand_t consolefunction;
683         xcommand_t clientfunction;
684         qboolean csqcfunc;
685 } cmd_function_t;
686
687 static int cmd_argc;
688 static const char *cmd_argv[MAX_ARGS];
689 static const char *cmd_null_string = "";
690 static const char *cmd_args;
691 cmd_source_t cmd_source;
692
693
694 static cmd_function_t *cmd_functions;           // possible commands to execute
695
696 static const char *Cmd_GetDirectCvarValue(const char *varname, cmdalias_t *alias, qboolean *is_multiple)
697 {
698         cvar_t *cvar;
699         long argno;
700         char *endptr;
701
702         if(is_multiple)
703                 *is_multiple = false;
704
705         if(!varname || !*varname)
706                 return NULL;
707
708         if(alias)
709         {
710                 if(!strcmp(varname, "*"))
711                 {
712                         if(is_multiple)
713                                 *is_multiple = true;
714                         return Cmd_Args();
715                 }
716                 else if(varname[strlen(varname) - 1] == '-')
717                 {
718                         argno = strtol(varname, &endptr, 10);
719                         if(endptr == varname + strlen(varname) - 1)
720                         {
721                                 // whole string is a number, apart from the -
722                                 const char *p = Cmd_Args();
723                                 for(; argno > 1; --argno)
724                                         if(!COM_ParseToken_Console(&p))
725                                                 break;
726                                 if(p)
727                                 {
728                                         if(is_multiple)
729                                                 *is_multiple = true;
730
731                                         // kill pre-argument whitespace
732                                         for (;*p && ISWHITESPACE(*p);p++)
733                                                 ;
734
735                                         return p;
736                                 }
737                         }
738                 }
739                 else
740                 {
741                         argno = strtol(varname, &endptr, 10);
742                         if(*endptr == 0)
743                         {
744                                 // whole string is a number
745                                 // NOTE: we already made sure we don't have an empty cvar name!
746                                 if(argno >= 0 && argno < Cmd_Argc())
747                                         return Cmd_Argv(argno);
748                         }
749                 }
750         }
751
752         if((cvar = Cvar_FindVar(varname)) && !(cvar->flags & CVAR_PRIVATE))
753                 return cvar->string;
754
755         return NULL;
756 }
757
758 qboolean Cmd_QuoteString(char *out, size_t outlen, const char *in, const char *quoteset)
759 {
760         qboolean quote_quot = !!strchr(quoteset, '"');
761         qboolean quote_backslash = !!strchr(quoteset, '\\');
762         qboolean quote_dollar = !!strchr(quoteset, '$');
763
764         while(*in)
765         {
766                 if(*in == '"' && quote_quot)
767                 {
768                         if(outlen <= 2)
769                         {
770                                 *out++ = 0;
771                                 return false;
772                         }
773                         *out++ = '\\'; --outlen;
774                         *out++ = '"'; --outlen;
775                 }
776                 else if(*in == '\\' && quote_backslash)
777                 {
778                         if(outlen <= 2)
779                         {
780                                 *out++ = 0;
781                                 return false;
782                         }
783                         *out++ = '\\'; --outlen;
784                         *out++ = '\\'; --outlen;
785                 }
786                 else if(*in == '$' && quote_dollar)
787                 {
788                         if(outlen <= 2)
789                         {
790                                 *out++ = 0;
791                                 return false;
792                         }
793                         *out++ = '$'; --outlen;
794                         *out++ = '$'; --outlen;
795                 }
796                 else
797                 {
798                         if(outlen <= 1)
799                         {
800                                 *out++ = 0;
801                                 return false;
802                         }
803                         *out++ = *in; --outlen;
804                 }
805                 ++in;
806         }
807         *out++ = 0;
808         return true;
809 }
810
811 static const char *Cmd_GetCvarValue(const char *var, size_t varlen, cmdalias_t *alias)
812 {
813         static char varname[MAX_INPUTLINE];
814         static char varval[MAX_INPUTLINE];
815         const char *varstr;
816         char *varfunc;
817
818         if(varlen >= MAX_INPUTLINE)
819                 varlen = MAX_INPUTLINE - 1;
820         memcpy(varname, var, varlen);
821         varname[varlen] = 0;
822         varfunc = strchr(varname, ' ');
823
824         if(varfunc)
825         {
826                 *varfunc = 0;
827                 ++varfunc;
828         }
829
830         if(*var == 0)
831         {
832                 // empty cvar name?
833                 return NULL;
834         }
835
836         varstr = NULL;
837
838         if(varname[0] == '$')
839                 varstr = Cmd_GetDirectCvarValue(Cmd_GetDirectCvarValue(varname + 1, alias, NULL), alias, NULL);
840         else
841         {
842                 qboolean is_multiple = false;
843                 // Exception: $* and $n- don't use the quoted form by default
844                 varstr = Cmd_GetDirectCvarValue(varname, alias, &is_multiple);
845                 if(is_multiple)
846                         if(!varfunc)
847                                 varfunc = "asis";
848         }
849
850         if(!varstr)
851         {
852                 if(alias)
853                         Con_Printf("Warning: Could not expand $%s in alias %s\n", varname, alias->name);
854                 else
855                         Con_Printf("Warning: Could not expand $%s\n", varname);
856                 return NULL;
857         }
858
859         if(!varfunc || !strcmp(varfunc, "q")) // note: quoted form is default, use "asis" to override!
860         {
861                 // quote it so it can be used inside double quotes
862                 // we just need to replace " by \", and of course, double backslashes
863                 Cmd_QuoteString(varval, sizeof(varval), varstr, "\"\\");
864                 return varval;
865         }
866         else if(!strcmp(varfunc, "asis"))
867         {
868                 return varstr;
869         }
870         else
871                 Con_Printf("Unknown variable function %s\n", varfunc);
872
873         return varstr;
874 }
875
876 /*
877 Cmd_PreprocessString
878
879 Preprocesses strings and replaces $*, $param#, $cvar accordingly
880 */
881 static void Cmd_PreprocessString( const char *intext, char *outtext, unsigned maxoutlen, cmdalias_t *alias ) {
882         const char *in;
883         size_t eat, varlen;
884         unsigned outlen;
885         const char *val;
886
887         // don't crash if there's no room in the outtext buffer
888         if( maxoutlen == 0 ) {
889                 return;
890         }
891         maxoutlen--; // because of \0
892
893         in = intext;
894         outlen = 0;
895
896         while( *in && outlen < maxoutlen ) {
897                 if( *in == '$' ) {
898                         // this is some kind of expansion, see what comes after the $
899                         in++;
900
901                         // The console does the following preprocessing:
902                         //
903                         // - $$ is transformed to a single dollar sign.
904                         // - $var or ${var} are expanded to the contents of the named cvar,
905                         //   with quotation marks and backslashes quoted so it can safely
906                         //   be used inside quotation marks (and it should always be used
907                         //   that way)
908                         // - ${var asis} inserts the cvar value as is, without doing this
909                         //   quoting
910                         // - prefix the cvar name with a dollar sign to do indirection;
911                         //   for example, if $x has the value timelimit, ${$x} will return
912                         //   the value of $timelimit
913                         // - when expanding an alias, the special variable name $* refers
914                         //   to all alias parameters, and a number refers to that numbered
915                         //   alias parameter, where the name of the alias is $0, the first
916                         //   parameter is $1 and so on; as a special case, $* inserts all
917                         //   parameters, without extra quoting, so one can use $* to just
918                         //   pass all parameters around. All parameters starting from $n
919                         //   can be referred to as $n- (so $* is equivalent to $1-).
920                         //
921                         // Note: when expanding an alias, cvar expansion is done in the SAME step
922                         // as alias expansion so that alias parameters or cvar values containing
923                         // dollar signs have no unwanted bad side effects. However, this needs to
924                         // be accounted for when writing complex aliases. For example,
925                         //   alias foo "set x NEW; echo $x"
926                         // actually expands to
927                         //   "set x NEW; echo OLD"
928                         // and will print OLD! To work around this, use a second alias:
929                         //   alias foo "set x NEW; foo2"
930                         //   alias foo2 "echo $x"
931                         //
932                         // Also note: lines starting with alias are exempt from cvar expansion.
933                         // If you want cvar expansion, write "alias" instead:
934                         //
935                         //   set x 1
936                         //   alias foo "echo $x"
937                         //   "alias" bar "echo $x"
938                         //   set x 2
939                         //
940                         // foo will print 2, because the variable $x will be expanded when the alias
941                         // gets expanded. bar will print 1, because the variable $x was expanded
942                         // at definition time. foo can be equivalently defined as
943                         //
944                         //   "alias" foo "echo $$x"
945                         //
946                         // because at definition time, $$ will get replaced to a single $.
947
948                         if( *in == '$' ) {
949                                 val = "$";
950                                 eat = 1;
951                         } else if(*in == '{') {
952                                 varlen = strcspn(in + 1, "}");
953                                 if(in[varlen + 1] == '}')
954                                 {
955                                         val = Cmd_GetCvarValue(in + 1, varlen, alias);
956                                         eat = varlen + 2;
957                                 }
958                                 else
959                                 {
960                                         // ran out of data?
961                                         val = NULL;
962                                         eat = varlen + 1;
963                                 }
964                         } else {
965                                 varlen = strspn(in, "*0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ_-");
966                                 val = Cmd_GetCvarValue(in, varlen, alias);
967                                 eat = varlen;
968                         }
969                         if(val)
970                         {
971                                 // insert the cvar value
972                                 while(*val && outlen < maxoutlen)
973                                         outtext[outlen++] = *val++;
974                                 in += eat;
975                         }
976                         else
977                         {
978                                 // copy the unexpanded text
979                                 outtext[outlen++] = '$';
980                                 while(eat && outlen < maxoutlen)
981                                 {
982                                         outtext[outlen++] = *in++;
983                                         --eat;
984                                 }
985                         }
986                 } else {
987                         outtext[outlen++] = *in++;
988                 }
989         }
990         outtext[outlen] = 0;
991 }
992
993 /*
994 ============
995 Cmd_ExecuteAlias
996
997 Called for aliases and fills in the alias into the cbuffer
998 ============
999 */
1000 static void Cmd_ExecuteAlias (cmdalias_t *alias)
1001 {
1002         static char buffer[ MAX_INPUTLINE ];
1003         static char buffer2[ MAX_INPUTLINE ];
1004         Cmd_PreprocessString( alias->value, buffer, sizeof(buffer) - 2, alias );
1005         // insert at start of command buffer, so that aliases execute in order
1006         // (fixes bug introduced by Black on 20050705)
1007
1008         // Note: Cbuf_PreprocessString will be called on this string AGAIN! So we
1009         // have to make sure that no second variable expansion takes place, otherwise
1010         // alias parameters containing dollar signs can have bad effects.
1011         Cmd_QuoteString(buffer2, sizeof(buffer2), buffer, "$");
1012         Cbuf_InsertText( buffer2 );
1013 }
1014
1015 /*
1016 ========
1017 Cmd_List
1018
1019         CmdList Added by EvilTypeGuy eviltypeguy@qeradiant.com
1020         Thanks to Matthias "Maddes" Buecher, http://www.inside3d.com/qip/
1021
1022 ========
1023 */
1024 static void Cmd_List_f (void)
1025 {
1026         cmd_function_t *cmd;
1027         const char *partial;
1028         size_t len;
1029         int count;
1030         qboolean ispattern;
1031
1032         if (Cmd_Argc() > 1)
1033         {
1034                 partial = Cmd_Argv (1);
1035                 len = strlen(partial);
1036         }
1037         else
1038         {
1039                 partial = NULL;
1040                 len = 0;
1041         }
1042
1043         ispattern = partial && (strchr(partial, '*') || strchr(partial, '?'));
1044
1045         count = 0;
1046         for (cmd = cmd_functions; cmd; cmd = cmd->next)
1047         {
1048                 if (partial && (ispattern ? !matchpattern_with_separator(cmd->name, partial, false, "", false) : strncmp(partial, cmd->name, len)))
1049                         continue;
1050                 Con_Printf("%s : %s\n", cmd->name, cmd->description);
1051                 count++;
1052         }
1053
1054         if (len)
1055         {
1056                 if(ispattern)
1057                         Con_Printf("%i Command%s matching \"%s\"\n\n", count, (count > 1) ? "s" : "", partial);
1058                 else
1059                         Con_Printf("%i Command%s beginning with \"%s\"\n\n", count, (count > 1) ? "s" : "", partial);
1060         }
1061         else
1062                 Con_Printf("%i Command%s\n\n", count, (count > 1) ? "s" : "");
1063 }
1064
1065 static void Cmd_Apropos_f(void)
1066 {
1067         cmd_function_t *cmd;
1068         cvar_t *cvar;
1069         cmdalias_t *alias;
1070         const char *partial;
1071         size_t len;
1072         int count;
1073         qboolean ispattern;
1074
1075         if (Cmd_Argc() > 1)
1076         {
1077                 partial = Cmd_Args();
1078                 len = strlen(partial);
1079         }
1080         else
1081         {
1082                 Con_Printf("usage: apropos <string>\n");
1083                 return;
1084         }
1085
1086         ispattern = partial && (strchr(partial, '*') || strchr(partial, '?'));
1087         if(!ispattern)
1088         {
1089                 partial = va("*%s*", partial);
1090                 len += 2;
1091         }
1092
1093         count = 0;
1094         for (cvar = cvar_vars; cvar; cvar = cvar->next)
1095         {
1096                 if (!matchpattern_with_separator(cvar->name, partial, true, "", false))
1097                 if (!matchpattern_with_separator(cvar->description, partial, true, "", false))
1098                         continue;
1099                 Con_Printf ("cvar ^3%s^7 is \"%s\" [\"%s\"] %s\n", cvar->name, cvar->string, cvar->defstring, cvar->description);
1100                 count++;
1101         }
1102         for (cmd = cmd_functions; cmd; cmd = cmd->next)
1103         {
1104                 if (!matchpattern_with_separator(cmd->name, partial, true, "", false))
1105                 if (!matchpattern_with_separator(cmd->description, partial, true, "", false))
1106                         continue;
1107                 Con_Printf("command ^2%s^7: %s\n", cmd->name, cmd->description);
1108                 count++;
1109         }
1110         for (alias = cmd_alias; alias; alias = alias->next)
1111         {
1112                 if (!matchpattern_with_separator(alias->name, partial, true, "", false))
1113                 if (!matchpattern_with_separator(alias->value, partial, true, "", false))
1114                         continue;
1115                 Con_Printf("alias ^5%s^7: %s", alias->name, alias->value);
1116                 count++;
1117         }
1118         Con_Printf("%i result%s\n\n", count, (count > 1) ? "s" : "");
1119 }
1120
1121 /*
1122 ============
1123 Cmd_Init
1124 ============
1125 */
1126 void Cmd_Init (void)
1127 {
1128         cmd_mempool = Mem_AllocPool("commands", 0, NULL);
1129         // space for commands and script files
1130         cmd_text.data = cmd_text_buf;
1131         cmd_text.maxsize = sizeof(cmd_text_buf);
1132         cmd_text.cursize = 0;
1133 }
1134
1135 void Cmd_Init_Commands (void)
1136 {
1137 //
1138 // register our commands
1139 //
1140         Cmd_AddCommand ("stuffcmds",Cmd_StuffCmds_f, "execute commandline parameters (must be present in quake.rc script)");
1141         Cmd_AddCommand ("exec",Cmd_Exec_f, "execute a script file");
1142         Cmd_AddCommand ("echo",Cmd_Echo_f, "print a message to the console (useful in scripts)");
1143         Cmd_AddCommand ("alias",Cmd_Alias_f, "create a script function (parameters are passed in as $1 through $9, and $* for all parameters)");
1144         Cmd_AddCommand ("cmd", Cmd_ForwardToServer, "send a console commandline to the server (used by some mods)");
1145         Cmd_AddCommand ("wait", Cmd_Wait_f, "make script execution wait for next rendered frame");
1146         Cmd_AddCommand ("set", Cvar_Set_f, "create or change the value of a console variable");
1147         Cmd_AddCommand ("seta", Cvar_SetA_f, "create or change the value of a console variable that will be saved to config.cfg");
1148 #ifdef FILLALLCVARSWITHRUBBISH
1149         Cmd_AddCommand ("fillallcvarswithrubbish", Cvar_FillAll_f, "fill all cvars with a specified number of characters to provoke buffer overruns");
1150 #endif /* FILLALLCVARSWITHRUBBISH */
1151
1152         // 2000-01-09 CmdList, CvarList commands By Matthias "Maddes" Buecher
1153         // Added/Modified by EvilTypeGuy eviltypeguy@qeradiant.com
1154         Cmd_AddCommand ("cmdlist", Cmd_List_f, "lists all console commands beginning with the specified prefix");
1155         Cmd_AddCommand ("cvarlist", Cvar_List_f, "lists all console variables beginning with the specified prefix");
1156         Cmd_AddCommand ("apropos", Cmd_Apropos_f, "lists all console variables/commands/aliases containing the specified string in the name or description");
1157
1158         Cmd_AddCommand ("cvar_lockdefaults", Cvar_LockDefaults_f, "stores the current values of all cvars into their default values, only used once during startup after parsing default.cfg");
1159         Cmd_AddCommand ("cvar_resettodefaults_all", Cvar_ResetToDefaults_All_f, "sets all cvars to their locked default values");
1160         Cmd_AddCommand ("cvar_resettodefaults_nosaveonly", Cvar_ResetToDefaults_NoSaveOnly_f, "sets all non-saved cvars to their locked default values (variables that will not be saved to config.cfg)");
1161         Cmd_AddCommand ("cvar_resettodefaults_saveonly", Cvar_ResetToDefaults_SaveOnly_f, "sets all saved cvars to their locked default values (variables that will be saved to config.cfg)");
1162
1163         Cmd_AddCommand ("cprint", Cmd_Centerprint_f, "print something at the screen center");
1164         Cmd_AddCommand ("defer", Cmd_Defer_f, "execute a command in the future");
1165
1166         // DRESK - 5/14/06
1167         // Support Doom3-style Toggle Command
1168         Cmd_AddCommand( "toggle", Cmd_Toggle_f, "toggles a console variable's values (use for more info)");
1169 }
1170
1171 /*
1172 ============
1173 Cmd_Shutdown
1174 ============
1175 */
1176 void Cmd_Shutdown(void)
1177 {
1178         Mem_FreePool(&cmd_mempool);
1179 }
1180
1181 /*
1182 ============
1183 Cmd_Argc
1184 ============
1185 */
1186 int             Cmd_Argc (void)
1187 {
1188         return cmd_argc;
1189 }
1190
1191 /*
1192 ============
1193 Cmd_Argv
1194 ============
1195 */
1196 const char *Cmd_Argv (int arg)
1197 {
1198         if (arg >= cmd_argc )
1199                 return cmd_null_string;
1200         return cmd_argv[arg];
1201 }
1202
1203 /*
1204 ============
1205 Cmd_Args
1206 ============
1207 */
1208 const char *Cmd_Args (void)
1209 {
1210         return cmd_args;
1211 }
1212
1213
1214 /*
1215 ============
1216 Cmd_TokenizeString
1217
1218 Parses the given string into command line tokens.
1219 ============
1220 */
1221 // AK: This function should only be called from ExcuteString because the current design is a bit of an hack
1222 static void Cmd_TokenizeString (const char *text)
1223 {
1224         int l;
1225
1226         cmd_argc = 0;
1227         cmd_args = NULL;
1228
1229         while (1)
1230         {
1231                 // skip whitespace up to a /n
1232                 while (*text && ISWHITESPACE(*text) && *text != '\r' && *text != '\n')
1233                         text++;
1234
1235                 // line endings:
1236                 // UNIX: \n
1237                 // Mac: \r
1238                 // Windows: \r\n
1239                 if (*text == '\n' || *text == '\r')
1240                 {
1241                         // a newline separates commands in the buffer
1242                         if (*text == '\r' && text[1] == '\n')
1243                                 text++;
1244                         text++;
1245                         break;
1246                 }
1247
1248                 if (!*text)
1249                         return;
1250
1251                 if (cmd_argc == 1)
1252                         cmd_args = text;
1253
1254                 if (!COM_ParseToken_Console(&text))
1255                         return;
1256
1257                 if (cmd_argc < MAX_ARGS)
1258                 {
1259                         l = (int)strlen(com_token) + 1;
1260                         if (cmd_tokenizebufferpos + l > CMD_TOKENIZELENGTH)
1261                         {
1262                                 Con_Printf("Cmd_TokenizeString: ran out of %i character buffer space for command arguements\n", CMD_TOKENIZELENGTH);
1263                                 break;
1264                         }
1265                         memcpy (cmd_tokenizebuffer + cmd_tokenizebufferpos, com_token, l);
1266                         cmd_argv[cmd_argc] = cmd_tokenizebuffer + cmd_tokenizebufferpos;
1267                         cmd_tokenizebufferpos += l;
1268                         cmd_argc++;
1269                 }
1270         }
1271 }
1272
1273
1274 /*
1275 ============
1276 Cmd_AddCommand
1277 ============
1278 */
1279 void Cmd_AddCommand_WithClientCommand (const char *cmd_name, xcommand_t consolefunction, xcommand_t clientfunction, const char *description)
1280 {
1281         cmd_function_t *cmd;
1282         cmd_function_t *prev, *current;
1283
1284 // fail if the command is a variable name
1285         if (Cvar_FindVar( cmd_name ))
1286         {
1287                 Con_Printf("Cmd_AddCommand: %s already defined as a var\n", cmd_name);
1288                 return;
1289         }
1290
1291 // fail if the command already exists
1292         for (cmd=cmd_functions ; cmd ; cmd=cmd->next)
1293         {
1294                 if (!strcmp (cmd_name, cmd->name))
1295                 {
1296                         if (consolefunction || clientfunction)
1297                         {
1298                                 Con_Printf("Cmd_AddCommand: %s already defined\n", cmd_name);
1299                                 return;
1300                         }
1301                         else    //[515]: csqc
1302                         {
1303                                 cmd->csqcfunc = true;
1304                                 return;
1305                         }
1306                 }
1307         }
1308
1309         cmd = (cmd_function_t *)Mem_Alloc(cmd_mempool, sizeof(cmd_function_t));
1310         cmd->name = cmd_name;
1311         cmd->consolefunction = consolefunction;
1312         cmd->clientfunction = clientfunction;
1313         cmd->description = description;
1314         if(!consolefunction && !clientfunction)                 //[515]: csqc
1315                 cmd->csqcfunc = true;
1316         cmd->next = cmd_functions;
1317
1318 // insert it at the right alphanumeric position
1319         for( prev = NULL, current = cmd_functions ; current && strcmp( current->name, cmd->name ) < 0 ; prev = current, current = current->next )
1320                 ;
1321         if( prev ) {
1322                 prev->next = cmd;
1323         } else {
1324                 cmd_functions = cmd;
1325         }
1326         cmd->next = current;
1327 }
1328
1329 void Cmd_AddCommand (const char *cmd_name, xcommand_t function, const char *description)
1330 {
1331         Cmd_AddCommand_WithClientCommand (cmd_name, function, NULL, description);
1332 }
1333
1334 /*
1335 ============
1336 Cmd_Exists
1337 ============
1338 */
1339 qboolean Cmd_Exists (const char *cmd_name)
1340 {
1341         cmd_function_t  *cmd;
1342
1343         for (cmd=cmd_functions ; cmd ; cmd=cmd->next)
1344                 if (!strcmp (cmd_name,cmd->name))
1345                         return true;
1346
1347         return false;
1348 }
1349
1350
1351 /*
1352 ============
1353 Cmd_CompleteCommand
1354 ============
1355 */
1356 const char *Cmd_CompleteCommand (const char *partial)
1357 {
1358         cmd_function_t *cmd;
1359         size_t len;
1360
1361         len = strlen(partial);
1362
1363         if (!len)
1364                 return NULL;
1365
1366 // check functions
1367         for (cmd = cmd_functions; cmd; cmd = cmd->next)
1368                 if (!strncasecmp(partial, cmd->name, len))
1369                         return cmd->name;
1370
1371         return NULL;
1372 }
1373
1374 /*
1375         Cmd_CompleteCountPossible
1376
1377         New function for tab-completion system
1378         Added by EvilTypeGuy
1379         Thanks to Fett erich@heintz.com
1380         Thanks to taniwha
1381
1382 */
1383 int Cmd_CompleteCountPossible (const char *partial)
1384 {
1385         cmd_function_t *cmd;
1386         size_t len;
1387         int h;
1388
1389         h = 0;
1390         len = strlen(partial);
1391
1392         if (!len)
1393                 return 0;
1394
1395         // Loop through the command list and count all partial matches
1396         for (cmd = cmd_functions; cmd; cmd = cmd->next)
1397                 if (!strncasecmp(partial, cmd->name, len))
1398                         h++;
1399
1400         return h;
1401 }
1402
1403 /*
1404         Cmd_CompleteBuildList
1405
1406         New function for tab-completion system
1407         Added by EvilTypeGuy
1408         Thanks to Fett erich@heintz.com
1409         Thanks to taniwha
1410
1411 */
1412 const char **Cmd_CompleteBuildList (const char *partial)
1413 {
1414         cmd_function_t *cmd;
1415         size_t len = 0;
1416         size_t bpos = 0;
1417         size_t sizeofbuf = (Cmd_CompleteCountPossible (partial) + 1) * sizeof (const char *);
1418         const char **buf;
1419
1420         len = strlen(partial);
1421         buf = (const char **)Mem_Alloc(tempmempool, sizeofbuf + sizeof (const char *));
1422         // Loop through the alias list and print all matches
1423         for (cmd = cmd_functions; cmd; cmd = cmd->next)
1424                 if (!strncasecmp(partial, cmd->name, len))
1425                         buf[bpos++] = cmd->name;
1426
1427         buf[bpos] = NULL;
1428         return buf;
1429 }
1430
1431 // written by LordHavoc
1432 void Cmd_CompleteCommandPrint (const char *partial)
1433 {
1434         cmd_function_t *cmd;
1435         size_t len = strlen(partial);
1436         // Loop through the command list and print all matches
1437         for (cmd = cmd_functions; cmd; cmd = cmd->next)
1438                 if (!strncasecmp(partial, cmd->name, len))
1439                         Con_Printf("^2%s^7: %s\n", cmd->name, cmd->description);
1440 }
1441
1442 /*
1443         Cmd_CompleteAlias
1444
1445         New function for tab-completion system
1446         Added by EvilTypeGuy
1447         Thanks to Fett erich@heintz.com
1448         Thanks to taniwha
1449
1450 */
1451 const char *Cmd_CompleteAlias (const char *partial)
1452 {
1453         cmdalias_t *alias;
1454         size_t len;
1455
1456         len = strlen(partial);
1457
1458         if (!len)
1459                 return NULL;
1460
1461         // Check functions
1462         for (alias = cmd_alias; alias; alias = alias->next)
1463                 if (!strncasecmp(partial, alias->name, len))
1464                         return alias->name;
1465
1466         return NULL;
1467 }
1468
1469 // written by LordHavoc
1470 void Cmd_CompleteAliasPrint (const char *partial)
1471 {
1472         cmdalias_t *alias;
1473         size_t len = strlen(partial);
1474         // Loop through the alias list and print all matches
1475         for (alias = cmd_alias; alias; alias = alias->next)
1476                 if (!strncasecmp(partial, alias->name, len))
1477                         Con_Printf("^5%s^7: %s", alias->name, alias->value);
1478 }
1479
1480
1481 /*
1482         Cmd_CompleteAliasCountPossible
1483
1484         New function for tab-completion system
1485         Added by EvilTypeGuy
1486         Thanks to Fett erich@heintz.com
1487         Thanks to taniwha
1488
1489 */
1490 int Cmd_CompleteAliasCountPossible (const char *partial)
1491 {
1492         cmdalias_t      *alias;
1493         size_t          len;
1494         int                     h;
1495
1496         h = 0;
1497
1498         len = strlen(partial);
1499
1500         if (!len)
1501                 return 0;
1502
1503         // Loop through the command list and count all partial matches
1504         for (alias = cmd_alias; alias; alias = alias->next)
1505                 if (!strncasecmp(partial, alias->name, len))
1506                         h++;
1507
1508         return h;
1509 }
1510
1511 /*
1512         Cmd_CompleteAliasBuildList
1513
1514         New function for tab-completion system
1515         Added by EvilTypeGuy
1516         Thanks to Fett erich@heintz.com
1517         Thanks to taniwha
1518
1519 */
1520 const char **Cmd_CompleteAliasBuildList (const char *partial)
1521 {
1522         cmdalias_t *alias;
1523         size_t len = 0;
1524         size_t bpos = 0;
1525         size_t sizeofbuf = (Cmd_CompleteAliasCountPossible (partial) + 1) * sizeof (const char *);
1526         const char **buf;
1527
1528         len = strlen(partial);
1529         buf = (const char **)Mem_Alloc(tempmempool, sizeofbuf + sizeof (const char *));
1530         // Loop through the alias list and print all matches
1531         for (alias = cmd_alias; alias; alias = alias->next)
1532                 if (!strncasecmp(partial, alias->name, len))
1533                         buf[bpos++] = alias->name;
1534
1535         buf[bpos] = NULL;
1536         return buf;
1537 }
1538
1539 void Cmd_ClearCsqcFuncs (void)
1540 {
1541         cmd_function_t *cmd;
1542         for (cmd=cmd_functions ; cmd ; cmd=cmd->next)
1543                 cmd->csqcfunc = false;
1544 }
1545
1546 qboolean CL_VM_ConsoleCommand (const char *cmd);
1547 /*
1548 ============
1549 Cmd_ExecuteString
1550
1551 A complete command line has been parsed, so try to execute it
1552 FIXME: lookupnoadd the token to speed search?
1553 ============
1554 */
1555 void Cmd_ExecuteString (const char *text, cmd_source_t src)
1556 {
1557         int oldpos;
1558         int found;
1559         cmd_function_t *cmd;
1560         cmdalias_t *a;
1561
1562         oldpos = cmd_tokenizebufferpos;
1563         cmd_source = src;
1564         found = false;
1565
1566         Cmd_TokenizeString (text);
1567
1568 // execute the command line
1569         if (!Cmd_Argc())
1570         {
1571                 cmd_tokenizebufferpos = oldpos;
1572                 return;         // no tokens
1573         }
1574
1575 // check functions
1576         for (cmd=cmd_functions ; cmd ; cmd=cmd->next)
1577         {
1578                 if (!strcasecmp (cmd_argv[0],cmd->name))
1579                 {
1580                         if (cmd->csqcfunc && CL_VM_ConsoleCommand (text))       //[515]: csqc
1581                                 return;
1582                         switch (src)
1583                         {
1584                         case src_command:
1585                                 if (cmd->consolefunction)
1586                                         cmd->consolefunction ();
1587                                 else if (cmd->clientfunction)
1588                                 {
1589                                         if (cls.state == ca_connected)
1590                                         {
1591                                                 // forward remote commands to the server for execution
1592                                                 Cmd_ForwardToServer();
1593                                         }
1594                                         else
1595                                                 Con_Printf("Can not send command \"%s\", not connected.\n", Cmd_Argv(0));
1596                                 }
1597                                 else
1598                                         Con_Printf("Command \"%s\" can not be executed\n", Cmd_Argv(0));
1599                                 found = true;
1600                                 goto command_found;
1601                                 break;
1602                         case src_client:
1603                                 if (cmd->clientfunction)
1604                                 {
1605                                         cmd->clientfunction ();
1606                                         cmd_tokenizebufferpos = oldpos;
1607                                         return;
1608                                 }
1609                                 break;
1610                         }
1611                         break;
1612                 }
1613         }
1614 command_found:
1615
1616         // if it's a client command and no command was found, say so.
1617         if (cmd_source == src_client)
1618         {
1619                 Con_Printf("player \"%s\" tried to %s\n", host_client->name, text);
1620                 cmd_tokenizebufferpos = oldpos;
1621                 return;
1622         }
1623
1624 // check alias
1625         for (a=cmd_alias ; a ; a=a->next)
1626         {
1627                 if (!strcasecmp (cmd_argv[0], a->name))
1628                 {
1629                         Cmd_ExecuteAlias(a);
1630                         cmd_tokenizebufferpos = oldpos;
1631                         return;
1632                 }
1633         }
1634
1635         if(found) // if the command was hooked and found, all is good
1636         {
1637                 cmd_tokenizebufferpos = oldpos;
1638                 return;
1639         }
1640
1641 // check cvars
1642         if (!Cvar_Command () && host_framecount > 0)
1643                 Con_Printf("Unknown command \"%s\"\n", Cmd_Argv(0));
1644
1645         cmd_tokenizebufferpos = oldpos;
1646 }
1647
1648
1649 /*
1650 ===================
1651 Cmd_ForwardStringToServer
1652
1653 Sends an entire command string over to the server, unprocessed
1654 ===================
1655 */
1656 void Cmd_ForwardStringToServer (const char *s)
1657 {
1658         char temp[128];
1659         if (cls.state != ca_connected)
1660         {
1661                 Con_Printf("Can't \"%s\", not connected\n", s);
1662                 return;
1663         }
1664
1665         if (!cls.netcon)
1666                 return;
1667
1668         // LordHavoc: thanks to Fuh for bringing the pure evil of SZ_Print to my
1669         // attention, it has been eradicated from here, its only (former) use in
1670         // all of darkplaces.
1671         if (cls.protocol == PROTOCOL_QUAKEWORLD)
1672                 MSG_WriteByte(&cls.netcon->message, qw_clc_stringcmd);
1673         else
1674                 MSG_WriteByte(&cls.netcon->message, clc_stringcmd);
1675         if ((!strncmp(s, "say ", 4) || !strncmp(s, "say_team ", 9)) && cl_locs_enable.integer)
1676         {
1677                 // say/say_team commands can replace % character codes with status info
1678                 while (*s)
1679                 {
1680                         if (*s == '%' && s[1])
1681                         {
1682                                 // handle proquake message macros
1683                                 temp[0] = 0;
1684                                 switch (s[1])
1685                                 {
1686                                 case 'l': // current location
1687                                         CL_Locs_FindLocationName(temp, sizeof(temp), cl.movement_origin);
1688                                         break;
1689                                 case 'h': // current health
1690                                         dpsnprintf(temp, sizeof(temp), "%i", cl.stats[STAT_HEALTH]);
1691                                         break;
1692                                 case 'a': // current armor
1693                                         dpsnprintf(temp, sizeof(temp), "%i", cl.stats[STAT_ARMOR]);
1694                                         break;
1695                                 case 'x': // current rockets
1696                                         dpsnprintf(temp, sizeof(temp), "%i", cl.stats[STAT_ROCKETS]);
1697                                         break;
1698                                 case 'c': // current cells
1699                                         dpsnprintf(temp, sizeof(temp), "%i", cl.stats[STAT_CELLS]);
1700                                         break;
1701                                 // silly proquake macros
1702                                 case 'd': // loc at last death
1703                                         CL_Locs_FindLocationName(temp, sizeof(temp), cl.lastdeathorigin);
1704                                         break;
1705                                 case 't': // current time
1706                                         dpsnprintf(temp, sizeof(temp), "%.0f:%.0f", floor(cl.time / 60), cl.time - floor(cl.time / 60) * 60);
1707                                         break;
1708                                 case 'r': // rocket launcher status ("I have RL", "I need rockets", "I need RL")
1709                                         if (!(cl.stats[STAT_ITEMS] & IT_ROCKET_LAUNCHER))
1710                                                 dpsnprintf(temp, sizeof(temp), "I need RL");
1711                                         else if (!cl.stats[STAT_ROCKETS])
1712                                                 dpsnprintf(temp, sizeof(temp), "I need rockets");
1713                                         else
1714                                                 dpsnprintf(temp, sizeof(temp), "I have RL");
1715                                         break;
1716                                 case 'p': // powerup status (outputs "quad" "pent" and "eyes" according to status)
1717                                         if (cl.stats[STAT_ITEMS] & IT_QUAD)
1718                                         {
1719                                                 if (temp[0])
1720                                                         strlcat(temp, " ", sizeof(temp));
1721                                                 strlcat(temp, "quad", sizeof(temp));
1722                                         }
1723                                         if (cl.stats[STAT_ITEMS] & IT_INVULNERABILITY)
1724                                         {
1725                                                 if (temp[0])
1726                                                         strlcat(temp, " ", sizeof(temp));
1727                                                 strlcat(temp, "pent", sizeof(temp));
1728                                         }
1729                                         if (cl.stats[STAT_ITEMS] & IT_INVISIBILITY)
1730                                         {
1731                                                 if (temp[0])
1732                                                         strlcat(temp, " ", sizeof(temp));
1733                                                 strlcat(temp, "eyes", sizeof(temp));
1734                                         }
1735                                         break;
1736                                 case 'w': // weapon status (outputs "SSG:NG:SNG:GL:RL:LG" with the text between : characters omitted if you lack the weapon)
1737                                         if (cl.stats[STAT_ITEMS] & IT_SUPER_SHOTGUN)
1738                                                 strlcat(temp, "SSG", sizeof(temp));
1739                                         strlcat(temp, ":", sizeof(temp));
1740                                         if (cl.stats[STAT_ITEMS] & IT_NAILGUN)
1741                                                 strlcat(temp, "NG", sizeof(temp));
1742                                         strlcat(temp, ":", sizeof(temp));
1743                                         if (cl.stats[STAT_ITEMS] & IT_SUPER_NAILGUN)
1744                                                 strlcat(temp, "SNG", sizeof(temp));
1745                                         strlcat(temp, ":", sizeof(temp));
1746                                         if (cl.stats[STAT_ITEMS] & IT_GRENADE_LAUNCHER)
1747                                                 strlcat(temp, "GL", sizeof(temp));
1748                                         strlcat(temp, ":", sizeof(temp));
1749                                         if (cl.stats[STAT_ITEMS] & IT_ROCKET_LAUNCHER)
1750                                                 strlcat(temp, "RL", sizeof(temp));
1751                                         strlcat(temp, ":", sizeof(temp));
1752                                         if (cl.stats[STAT_ITEMS] & IT_LIGHTNING)
1753                                                 strlcat(temp, "LG", sizeof(temp));
1754                                         break;
1755                                 default:
1756                                         // not a recognized macro, print it as-is...
1757                                         temp[0] = s[0];
1758                                         temp[1] = s[1];
1759                                         temp[2] = 0;
1760                                         break;
1761                                 }
1762                                 // write the resulting text
1763                                 SZ_Write(&cls.netcon->message, (unsigned char *)temp, strlen(temp));
1764                                 s += 2;
1765                                 continue;
1766                         }
1767                         MSG_WriteByte(&cls.netcon->message, *s);
1768                         s++;
1769                 }
1770                 MSG_WriteByte(&cls.netcon->message, 0);
1771         }
1772         else // any other command is passed on as-is
1773                 SZ_Write(&cls.netcon->message, (const unsigned char *)s, (int)strlen(s) + 1);
1774 }
1775
1776 /*
1777 ===================
1778 Cmd_ForwardToServer
1779
1780 Sends the entire command line over to the server
1781 ===================
1782 */
1783 void Cmd_ForwardToServer (void)
1784 {
1785         const char *s;
1786         if (!strcasecmp(Cmd_Argv(0), "cmd"))
1787         {
1788                 // we want to strip off "cmd", so just send the args
1789                 s = Cmd_Argc() > 1 ? Cmd_Args() : "";
1790         }
1791         else
1792         {
1793                 // we need to keep the command name, so send Cmd_Argv(0), a space and then Cmd_Args()
1794                 s = va("%s %s", Cmd_Argv(0), Cmd_Argc() > 1 ? Cmd_Args() : "");
1795         }
1796         // don't send an empty forward message if the user tries "cmd" by itself
1797         if (!s || !*s)
1798                 return;
1799         Cmd_ForwardStringToServer(s);
1800 }
1801
1802
1803 /*
1804 ================
1805 Cmd_CheckParm
1806
1807 Returns the position (1 to argc-1) in the command's argument list
1808 where the given parameter apears, or 0 if not present
1809 ================
1810 */
1811
1812 int Cmd_CheckParm (const char *parm)
1813 {
1814         int i;
1815
1816         if (!parm)
1817         {
1818                 Con_Printf ("Cmd_CheckParm: NULL");
1819                 return 0;
1820         }
1821
1822         for (i = 1; i < Cmd_Argc (); i++)
1823                 if (!strcasecmp (parm, Cmd_Argv (i)))
1824                         return i;
1825
1826         return 0;
1827 }
1828