* don't expand cvars in comments
[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#, $cvar accordingly. Also strips comments.
880 */
881 static void Cmd_PreprocessString( const char *intext, char *outtext, unsigned maxoutlen, cmdalias_t *alias ) {
882         const char *in;
883         size_t eat, varlen;
884         unsigned outlen;
885         const char *val;
886
887         // don't crash if there's no room in the outtext buffer
888         if( maxoutlen == 0 ) {
889                 return;
890         }
891         maxoutlen--; // because of \0
892
893         in = intext;
894         outlen = 0;
895
896         while( *in && outlen < maxoutlen ) {
897                 if( *in == '$' ) {
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                 }
987                 else if( *in == '/' && *(in+1) == '/') // comment line starting
988                         break;
989                 else 
990                         outtext[outlen++] = *in++;
991         }
992         outtext[outlen] = 0;
993 }
994
995 /*
996 ============
997 Cmd_ExecuteAlias
998
999 Called for aliases and fills in the alias into the cbuffer
1000 ============
1001 */
1002 static void Cmd_ExecuteAlias (cmdalias_t *alias)
1003 {
1004         static char buffer[ MAX_INPUTLINE ];
1005         static char buffer2[ MAX_INPUTLINE ];
1006         Cmd_PreprocessString( alias->value, buffer, sizeof(buffer) - 2, alias );
1007         // insert at start of command buffer, so that aliases execute in order
1008         // (fixes bug introduced by Black on 20050705)
1009
1010         // Note: Cbuf_PreprocessString will be called on this string AGAIN! So we
1011         // have to make sure that no second variable expansion takes place, otherwise
1012         // alias parameters containing dollar signs can have bad effects.
1013         Cmd_QuoteString(buffer2, sizeof(buffer2), buffer, "$");
1014         Cbuf_InsertText( buffer2 );
1015 }
1016
1017 /*
1018 ========
1019 Cmd_List
1020
1021         CmdList Added by EvilTypeGuy eviltypeguy@qeradiant.com
1022         Thanks to Matthias "Maddes" Buecher, http://www.inside3d.com/qip/
1023
1024 ========
1025 */
1026 static void Cmd_List_f (void)
1027 {
1028         cmd_function_t *cmd;
1029         const char *partial;
1030         size_t len;
1031         int count;
1032         qboolean ispattern;
1033
1034         if (Cmd_Argc() > 1)
1035         {
1036                 partial = Cmd_Argv (1);
1037                 len = strlen(partial);
1038         }
1039         else
1040         {
1041                 partial = NULL;
1042                 len = 0;
1043         }
1044
1045         ispattern = partial && (strchr(partial, '*') || strchr(partial, '?'));
1046
1047         count = 0;
1048         for (cmd = cmd_functions; cmd; cmd = cmd->next)
1049         {
1050                 if (partial && (ispattern ? !matchpattern_with_separator(cmd->name, partial, false, "", false) : strncmp(partial, cmd->name, len)))
1051                         continue;
1052                 Con_Printf("%s : %s\n", cmd->name, cmd->description);
1053                 count++;
1054         }
1055
1056         if (len)
1057         {
1058                 if(ispattern)
1059                         Con_Printf("%i Command%s matching \"%s\"\n\n", count, (count > 1) ? "s" : "", partial);
1060                 else
1061                         Con_Printf("%i Command%s beginning with \"%s\"\n\n", count, (count > 1) ? "s" : "", partial);
1062         }
1063         else
1064                 Con_Printf("%i Command%s\n\n", count, (count > 1) ? "s" : "");
1065 }
1066
1067 static void Cmd_Apropos_f(void)
1068 {
1069         cmd_function_t *cmd;
1070         cvar_t *cvar;
1071         cmdalias_t *alias;
1072         const char *partial;
1073         size_t len;
1074         int count;
1075         qboolean ispattern;
1076
1077         if (Cmd_Argc() > 1)
1078         {
1079                 partial = Cmd_Args();
1080                 len = strlen(partial);
1081         }
1082         else
1083         {
1084                 Con_Printf("usage: apropos <string>\n");
1085                 return;
1086         }
1087
1088         ispattern = partial && (strchr(partial, '*') || strchr(partial, '?'));
1089         if(!ispattern)
1090         {
1091                 partial = va("*%s*", partial);
1092                 len += 2;
1093         }
1094
1095         count = 0;
1096         for (cvar = cvar_vars; cvar; cvar = cvar->next)
1097         {
1098                 if (!matchpattern_with_separator(cvar->name, partial, true, "", false))
1099                 if (!matchpattern_with_separator(cvar->description, partial, true, "", false))
1100                         continue;
1101                 Con_Printf ("cvar ^3%s^7 is \"%s\" [\"%s\"] %s\n", cvar->name, cvar->string, cvar->defstring, cvar->description);
1102                 count++;
1103         }
1104         for (cmd = cmd_functions; cmd; cmd = cmd->next)
1105         {
1106                 if (!matchpattern_with_separator(cmd->name, partial, true, "", false))
1107                 if (!matchpattern_with_separator(cmd->description, partial, true, "", false))
1108                         continue;
1109                 Con_Printf("command ^2%s^7: %s\n", cmd->name, cmd->description);
1110                 count++;
1111         }
1112         for (alias = cmd_alias; alias; alias = alias->next)
1113         {
1114                 if (!matchpattern_with_separator(alias->name, partial, true, "", false))
1115                 if (!matchpattern_with_separator(alias->value, partial, true, "", false))
1116                         continue;
1117                 Con_Printf("alias ^5%s^7: %s", alias->name, alias->value);
1118                 count++;
1119         }
1120         Con_Printf("%i result%s\n\n", count, (count > 1) ? "s" : "");
1121 }
1122
1123 /*
1124 ============
1125 Cmd_Init
1126 ============
1127 */
1128 void Cmd_Init (void)
1129 {
1130         cmd_mempool = Mem_AllocPool("commands", 0, NULL);
1131         // space for commands and script files
1132         cmd_text.data = cmd_text_buf;
1133         cmd_text.maxsize = sizeof(cmd_text_buf);
1134         cmd_text.cursize = 0;
1135 }
1136
1137 void Cmd_Init_Commands (void)
1138 {
1139 //
1140 // register our commands
1141 //
1142         Cmd_AddCommand ("stuffcmds",Cmd_StuffCmds_f, "execute commandline parameters (must be present in quake.rc script)");
1143         Cmd_AddCommand ("exec",Cmd_Exec_f, "execute a script file");
1144         Cmd_AddCommand ("echo",Cmd_Echo_f, "print a message to the console (useful in scripts)");
1145         Cmd_AddCommand ("alias",Cmd_Alias_f, "create a script function (parameters are passed in as $X (being X a number), $* for all parameters, $X- for all parameters starting from $X). Without arguments show the list of all alias");
1146         Cmd_AddCommand ("cmd", Cmd_ForwardToServer, "send a console commandline to the server (used by some mods)");
1147         Cmd_AddCommand ("wait", Cmd_Wait_f, "make script execution wait for next rendered frame");
1148         Cmd_AddCommand ("set", Cvar_Set_f, "create or change the value of a console variable");
1149         Cmd_AddCommand ("seta", Cvar_SetA_f, "create or change the value of a console variable that will be saved to config.cfg");
1150 #ifdef FILLALLCVARSWITHRUBBISH
1151         Cmd_AddCommand ("fillallcvarswithrubbish", Cvar_FillAll_f, "fill all cvars with a specified number of characters to provoke buffer overruns");
1152 #endif /* FILLALLCVARSWITHRUBBISH */
1153
1154         // 2000-01-09 CmdList, CvarList commands By Matthias "Maddes" Buecher
1155         // Added/Modified by EvilTypeGuy eviltypeguy@qeradiant.com
1156         Cmd_AddCommand ("cmdlist", Cmd_List_f, "lists all console commands beginning with the specified prefix");
1157         Cmd_AddCommand ("cvarlist", Cvar_List_f, "lists all console variables beginning with the specified prefix");
1158         Cmd_AddCommand ("apropos", Cmd_Apropos_f, "lists all console variables/commands/aliases containing the specified string in the name or description");
1159
1160         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");
1161         Cmd_AddCommand ("cvar_resettodefaults_all", Cvar_ResetToDefaults_All_f, "sets all cvars to their locked default values");
1162         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)");
1163         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)");
1164
1165         Cmd_AddCommand ("cprint", Cmd_Centerprint_f, "print something at the screen center");
1166         Cmd_AddCommand ("defer", Cmd_Defer_f, "execute a command in the future");
1167
1168         // DRESK - 5/14/06
1169         // Support Doom3-style Toggle Command
1170         Cmd_AddCommand( "toggle", Cmd_Toggle_f, "toggles a console variable's values (use for more info)");
1171 }
1172
1173 /*
1174 ============
1175 Cmd_Shutdown
1176 ============
1177 */
1178 void Cmd_Shutdown(void)
1179 {
1180         Mem_FreePool(&cmd_mempool);
1181 }
1182
1183 /*
1184 ============
1185 Cmd_Argc
1186 ============
1187 */
1188 int             Cmd_Argc (void)
1189 {
1190         return cmd_argc;
1191 }
1192
1193 /*
1194 ============
1195 Cmd_Argv
1196 ============
1197 */
1198 const char *Cmd_Argv (int arg)
1199 {
1200         if (arg >= cmd_argc )
1201                 return cmd_null_string;
1202         return cmd_argv[arg];
1203 }
1204
1205 /*
1206 ============
1207 Cmd_Args
1208 ============
1209 */
1210 const char *Cmd_Args (void)
1211 {
1212         return cmd_args;
1213 }
1214
1215
1216 /*
1217 ============
1218 Cmd_TokenizeString
1219
1220 Parses the given string into command line tokens.
1221 ============
1222 */
1223 // AK: This function should only be called from ExcuteString because the current design is a bit of an hack
1224 static void Cmd_TokenizeString (const char *text)
1225 {
1226         int l;
1227
1228         cmd_argc = 0;
1229         cmd_args = NULL;
1230
1231         while (1)
1232         {
1233                 // skip whitespace up to a /n
1234                 while (*text && ISWHITESPACE(*text) && *text != '\r' && *text != '\n')
1235                         text++;
1236
1237                 // line endings:
1238                 // UNIX: \n
1239                 // Mac: \r
1240                 // Windows: \r\n
1241                 if (*text == '\n' || *text == '\r')
1242                 {
1243                         // a newline separates commands in the buffer
1244                         if (*text == '\r' && text[1] == '\n')
1245                                 text++;
1246                         text++;
1247                         break;
1248                 }
1249
1250                 if (!*text)
1251                         return;
1252
1253                 if (cmd_argc == 1)
1254                         cmd_args = text;
1255
1256                 if (!COM_ParseToken_Console(&text))
1257                         return;
1258
1259                 if (cmd_argc < MAX_ARGS)
1260                 {
1261                         l = (int)strlen(com_token) + 1;
1262                         if (cmd_tokenizebufferpos + l > CMD_TOKENIZELENGTH)
1263                         {
1264                                 Con_Printf("Cmd_TokenizeString: ran out of %i character buffer space for command arguements\n", CMD_TOKENIZELENGTH);
1265                                 break;
1266                         }
1267                         memcpy (cmd_tokenizebuffer + cmd_tokenizebufferpos, com_token, l);
1268                         cmd_argv[cmd_argc] = cmd_tokenizebuffer + cmd_tokenizebufferpos;
1269                         cmd_tokenizebufferpos += l;
1270                         cmd_argc++;
1271                 }
1272         }
1273 }
1274
1275
1276 /*
1277 ============
1278 Cmd_AddCommand
1279 ============
1280 */
1281 void Cmd_AddCommand_WithClientCommand (const char *cmd_name, xcommand_t consolefunction, xcommand_t clientfunction, const char *description)
1282 {
1283         cmd_function_t *cmd;
1284         cmd_function_t *prev, *current;
1285
1286 // fail if the command is a variable name
1287         if (Cvar_FindVar( cmd_name ))
1288         {
1289                 Con_Printf("Cmd_AddCommand: %s already defined as a var\n", cmd_name);
1290                 return;
1291         }
1292
1293 // fail if the command already exists
1294         for (cmd=cmd_functions ; cmd ; cmd=cmd->next)
1295         {
1296                 if (!strcmp (cmd_name, cmd->name))
1297                 {
1298                         if (consolefunction || clientfunction)
1299                         {
1300                                 Con_Printf("Cmd_AddCommand: %s already defined\n", cmd_name);
1301                                 return;
1302                         }
1303                         else    //[515]: csqc
1304                         {
1305                                 cmd->csqcfunc = true;
1306                                 return;
1307                         }
1308                 }
1309         }
1310
1311         cmd = (cmd_function_t *)Mem_Alloc(cmd_mempool, sizeof(cmd_function_t));
1312         cmd->name = cmd_name;
1313         cmd->consolefunction = consolefunction;
1314         cmd->clientfunction = clientfunction;
1315         cmd->description = description;
1316         if(!consolefunction && !clientfunction)                 //[515]: csqc
1317                 cmd->csqcfunc = true;
1318         cmd->next = cmd_functions;
1319
1320 // insert it at the right alphanumeric position
1321         for( prev = NULL, current = cmd_functions ; current && strcmp( current->name, cmd->name ) < 0 ; prev = current, current = current->next )
1322                 ;
1323         if( prev ) {
1324                 prev->next = cmd;
1325         } else {
1326                 cmd_functions = cmd;
1327         }
1328         cmd->next = current;
1329 }
1330
1331 void Cmd_AddCommand (const char *cmd_name, xcommand_t function, const char *description)
1332 {
1333         Cmd_AddCommand_WithClientCommand (cmd_name, function, NULL, description);
1334 }
1335
1336 /*
1337 ============
1338 Cmd_Exists
1339 ============
1340 */
1341 qboolean Cmd_Exists (const char *cmd_name)
1342 {
1343         cmd_function_t  *cmd;
1344
1345         for (cmd=cmd_functions ; cmd ; cmd=cmd->next)
1346                 if (!strcmp (cmd_name,cmd->name))
1347                         return true;
1348
1349         return false;
1350 }
1351
1352
1353 /*
1354 ============
1355 Cmd_CompleteCommand
1356 ============
1357 */
1358 const char *Cmd_CompleteCommand (const char *partial)
1359 {
1360         cmd_function_t *cmd;
1361         size_t len;
1362
1363         len = strlen(partial);
1364
1365         if (!len)
1366                 return NULL;
1367
1368 // check functions
1369         for (cmd = cmd_functions; cmd; cmd = cmd->next)
1370                 if (!strncasecmp(partial, cmd->name, len))
1371                         return cmd->name;
1372
1373         return NULL;
1374 }
1375
1376 /*
1377         Cmd_CompleteCountPossible
1378
1379         New function for tab-completion system
1380         Added by EvilTypeGuy
1381         Thanks to Fett erich@heintz.com
1382         Thanks to taniwha
1383
1384 */
1385 int Cmd_CompleteCountPossible (const char *partial)
1386 {
1387         cmd_function_t *cmd;
1388         size_t len;
1389         int h;
1390
1391         h = 0;
1392         len = strlen(partial);
1393
1394         if (!len)
1395                 return 0;
1396
1397         // Loop through the command list and count all partial matches
1398         for (cmd = cmd_functions; cmd; cmd = cmd->next)
1399                 if (!strncasecmp(partial, cmd->name, len))
1400                         h++;
1401
1402         return h;
1403 }
1404
1405 /*
1406         Cmd_CompleteBuildList
1407
1408         New function for tab-completion system
1409         Added by EvilTypeGuy
1410         Thanks to Fett erich@heintz.com
1411         Thanks to taniwha
1412
1413 */
1414 const char **Cmd_CompleteBuildList (const char *partial)
1415 {
1416         cmd_function_t *cmd;
1417         size_t len = 0;
1418         size_t bpos = 0;
1419         size_t sizeofbuf = (Cmd_CompleteCountPossible (partial) + 1) * sizeof (const char *);
1420         const char **buf;
1421
1422         len = strlen(partial);
1423         buf = (const char **)Mem_Alloc(tempmempool, sizeofbuf + sizeof (const char *));
1424         // Loop through the alias list and print all matches
1425         for (cmd = cmd_functions; cmd; cmd = cmd->next)
1426                 if (!strncasecmp(partial, cmd->name, len))
1427                         buf[bpos++] = cmd->name;
1428
1429         buf[bpos] = NULL;
1430         return buf;
1431 }
1432
1433 // written by LordHavoc
1434 void Cmd_CompleteCommandPrint (const char *partial)
1435 {
1436         cmd_function_t *cmd;
1437         size_t len = strlen(partial);
1438         // Loop through the command list and print all matches
1439         for (cmd = cmd_functions; cmd; cmd = cmd->next)
1440                 if (!strncasecmp(partial, cmd->name, len))
1441                         Con_Printf("^2%s^7: %s\n", cmd->name, cmd->description);
1442 }
1443
1444 /*
1445         Cmd_CompleteAlias
1446
1447         New function for tab-completion system
1448         Added by EvilTypeGuy
1449         Thanks to Fett erich@heintz.com
1450         Thanks to taniwha
1451
1452 */
1453 const char *Cmd_CompleteAlias (const char *partial)
1454 {
1455         cmdalias_t *alias;
1456         size_t len;
1457
1458         len = strlen(partial);
1459
1460         if (!len)
1461                 return NULL;
1462
1463         // Check functions
1464         for (alias = cmd_alias; alias; alias = alias->next)
1465                 if (!strncasecmp(partial, alias->name, len))
1466                         return alias->name;
1467
1468         return NULL;
1469 }
1470
1471 // written by LordHavoc
1472 void Cmd_CompleteAliasPrint (const char *partial)
1473 {
1474         cmdalias_t *alias;
1475         size_t len = strlen(partial);
1476         // Loop through the alias list and print all matches
1477         for (alias = cmd_alias; alias; alias = alias->next)
1478                 if (!strncasecmp(partial, alias->name, len))
1479                         Con_Printf("^5%s^7: %s", alias->name, alias->value);
1480 }
1481
1482
1483 /*
1484         Cmd_CompleteAliasCountPossible
1485
1486         New function for tab-completion system
1487         Added by EvilTypeGuy
1488         Thanks to Fett erich@heintz.com
1489         Thanks to taniwha
1490
1491 */
1492 int Cmd_CompleteAliasCountPossible (const char *partial)
1493 {
1494         cmdalias_t      *alias;
1495         size_t          len;
1496         int                     h;
1497
1498         h = 0;
1499
1500         len = strlen(partial);
1501
1502         if (!len)
1503                 return 0;
1504
1505         // Loop through the command list and count all partial matches
1506         for (alias = cmd_alias; alias; alias = alias->next)
1507                 if (!strncasecmp(partial, alias->name, len))
1508                         h++;
1509
1510         return h;
1511 }
1512
1513 /*
1514         Cmd_CompleteAliasBuildList
1515
1516         New function for tab-completion system
1517         Added by EvilTypeGuy
1518         Thanks to Fett erich@heintz.com
1519         Thanks to taniwha
1520
1521 */
1522 const char **Cmd_CompleteAliasBuildList (const char *partial)
1523 {
1524         cmdalias_t *alias;
1525         size_t len = 0;
1526         size_t bpos = 0;
1527         size_t sizeofbuf = (Cmd_CompleteAliasCountPossible (partial) + 1) * sizeof (const char *);
1528         const char **buf;
1529
1530         len = strlen(partial);
1531         buf = (const char **)Mem_Alloc(tempmempool, sizeofbuf + sizeof (const char *));
1532         // Loop through the alias list and print all matches
1533         for (alias = cmd_alias; alias; alias = alias->next)
1534                 if (!strncasecmp(partial, alias->name, len))
1535                         buf[bpos++] = alias->name;
1536
1537         buf[bpos] = NULL;
1538         return buf;
1539 }
1540
1541 void Cmd_ClearCsqcFuncs (void)
1542 {
1543         cmd_function_t *cmd;
1544         for (cmd=cmd_functions ; cmd ; cmd=cmd->next)
1545                 cmd->csqcfunc = false;
1546 }
1547
1548 qboolean CL_VM_ConsoleCommand (const char *cmd);
1549 /*
1550 ============
1551 Cmd_ExecuteString
1552
1553 A complete command line has been parsed, so try to execute it
1554 FIXME: lookupnoadd the token to speed search?
1555 ============
1556 */
1557 void Cmd_ExecuteString (const char *text, cmd_source_t src)
1558 {
1559         int oldpos;
1560         int found;
1561         cmd_function_t *cmd;
1562         cmdalias_t *a;
1563
1564         oldpos = cmd_tokenizebufferpos;
1565         cmd_source = src;
1566         found = false;
1567
1568         Cmd_TokenizeString (text);
1569
1570 // execute the command line
1571         if (!Cmd_Argc())
1572         {
1573                 cmd_tokenizebufferpos = oldpos;
1574                 return;         // no tokens
1575         }
1576
1577 // check functions
1578         for (cmd=cmd_functions ; cmd ; cmd=cmd->next)
1579         {
1580                 if (!strcasecmp (cmd_argv[0],cmd->name))
1581                 {
1582                         if (cmd->csqcfunc && CL_VM_ConsoleCommand (text))       //[515]: csqc
1583                                 return;
1584                         switch (src)
1585                         {
1586                         case src_command:
1587                                 if (cmd->consolefunction)
1588                                         cmd->consolefunction ();
1589                                 else if (cmd->clientfunction)
1590                                 {
1591                                         if (cls.state == ca_connected)
1592                                         {
1593                                                 // forward remote commands to the server for execution
1594                                                 Cmd_ForwardToServer();
1595                                         }
1596                                         else
1597                                                 Con_Printf("Can not send command \"%s\", not connected.\n", Cmd_Argv(0));
1598                                 }
1599                                 else
1600                                         Con_Printf("Command \"%s\" can not be executed\n", Cmd_Argv(0));
1601                                 found = true;
1602                                 goto command_found;
1603                                 break;
1604                         case src_client:
1605                                 if (cmd->clientfunction)
1606                                 {
1607                                         cmd->clientfunction ();
1608                                         cmd_tokenizebufferpos = oldpos;
1609                                         return;
1610                                 }
1611                                 break;
1612                         }
1613                         break;
1614                 }
1615         }
1616 command_found:
1617
1618         // if it's a client command and no command was found, say so.
1619         if (cmd_source == src_client)
1620         {
1621                 Con_Printf("player \"%s\" tried to %s\n", host_client->name, text);
1622                 cmd_tokenizebufferpos = oldpos;
1623                 return;
1624         }
1625
1626 // check alias
1627         for (a=cmd_alias ; a ; a=a->next)
1628         {
1629                 if (!strcasecmp (cmd_argv[0], a->name))
1630                 {
1631                         Cmd_ExecuteAlias(a);
1632                         cmd_tokenizebufferpos = oldpos;
1633                         return;
1634                 }
1635         }
1636
1637         if(found) // if the command was hooked and found, all is good
1638         {
1639                 cmd_tokenizebufferpos = oldpos;
1640                 return;
1641         }
1642
1643 // check cvars
1644         if (!Cvar_Command () && host_framecount > 0)
1645                 Con_Printf("Unknown command \"%s\"\n", Cmd_Argv(0));
1646
1647         cmd_tokenizebufferpos = oldpos;
1648 }
1649
1650
1651 /*
1652 ===================
1653 Cmd_ForwardStringToServer
1654
1655 Sends an entire command string over to the server, unprocessed
1656 ===================
1657 */
1658 void Cmd_ForwardStringToServer (const char *s)
1659 {
1660         char temp[128];
1661         if (cls.state != ca_connected)
1662         {
1663                 Con_Printf("Can't \"%s\", not connected\n", s);
1664                 return;
1665         }
1666
1667         if (!cls.netcon)
1668                 return;
1669
1670         // LordHavoc: thanks to Fuh for bringing the pure evil of SZ_Print to my
1671         // attention, it has been eradicated from here, its only (former) use in
1672         // all of darkplaces.
1673         if (cls.protocol == PROTOCOL_QUAKEWORLD)
1674                 MSG_WriteByte(&cls.netcon->message, qw_clc_stringcmd);
1675         else
1676                 MSG_WriteByte(&cls.netcon->message, clc_stringcmd);
1677         if ((!strncmp(s, "say ", 4) || !strncmp(s, "say_team ", 9)) && cl_locs_enable.integer)
1678         {
1679                 // say/say_team commands can replace % character codes with status info
1680                 while (*s)
1681                 {
1682                         if (*s == '%' && s[1])
1683                         {
1684                                 // handle proquake message macros
1685                                 temp[0] = 0;
1686                                 switch (s[1])
1687                                 {
1688                                 case 'l': // current location
1689                                         CL_Locs_FindLocationName(temp, sizeof(temp), cl.movement_origin);
1690                                         break;
1691                                 case 'h': // current health
1692                                         dpsnprintf(temp, sizeof(temp), "%i", cl.stats[STAT_HEALTH]);
1693                                         break;
1694                                 case 'a': // current armor
1695                                         dpsnprintf(temp, sizeof(temp), "%i", cl.stats[STAT_ARMOR]);
1696                                         break;
1697                                 case 'x': // current rockets
1698                                         dpsnprintf(temp, sizeof(temp), "%i", cl.stats[STAT_ROCKETS]);
1699                                         break;
1700                                 case 'c': // current cells
1701                                         dpsnprintf(temp, sizeof(temp), "%i", cl.stats[STAT_CELLS]);
1702                                         break;
1703                                 // silly proquake macros
1704                                 case 'd': // loc at last death
1705                                         CL_Locs_FindLocationName(temp, sizeof(temp), cl.lastdeathorigin);
1706                                         break;
1707                                 case 't': // current time
1708                                         dpsnprintf(temp, sizeof(temp), "%.0f:%.0f", floor(cl.time / 60), cl.time - floor(cl.time / 60) * 60);
1709                                         break;
1710                                 case 'r': // rocket launcher status ("I have RL", "I need rockets", "I need RL")
1711                                         if (!(cl.stats[STAT_ITEMS] & IT_ROCKET_LAUNCHER))
1712                                                 dpsnprintf(temp, sizeof(temp), "I need RL");
1713                                         else if (!cl.stats[STAT_ROCKETS])
1714                                                 dpsnprintf(temp, sizeof(temp), "I need rockets");
1715                                         else
1716                                                 dpsnprintf(temp, sizeof(temp), "I have RL");
1717                                         break;
1718                                 case 'p': // powerup status (outputs "quad" "pent" and "eyes" according to status)
1719                                         if (cl.stats[STAT_ITEMS] & IT_QUAD)
1720                                         {
1721                                                 if (temp[0])
1722                                                         strlcat(temp, " ", sizeof(temp));
1723                                                 strlcat(temp, "quad", sizeof(temp));
1724                                         }
1725                                         if (cl.stats[STAT_ITEMS] & IT_INVULNERABILITY)
1726                                         {
1727                                                 if (temp[0])
1728                                                         strlcat(temp, " ", sizeof(temp));
1729                                                 strlcat(temp, "pent", sizeof(temp));
1730                                         }
1731                                         if (cl.stats[STAT_ITEMS] & IT_INVISIBILITY)
1732                                         {
1733                                                 if (temp[0])
1734                                                         strlcat(temp, " ", sizeof(temp));
1735                                                 strlcat(temp, "eyes", sizeof(temp));
1736                                         }
1737                                         break;
1738                                 case 'w': // weapon status (outputs "SSG:NG:SNG:GL:RL:LG" with the text between : characters omitted if you lack the weapon)
1739                                         if (cl.stats[STAT_ITEMS] & IT_SUPER_SHOTGUN)
1740                                                 strlcat(temp, "SSG", sizeof(temp));
1741                                         strlcat(temp, ":", sizeof(temp));
1742                                         if (cl.stats[STAT_ITEMS] & IT_NAILGUN)
1743                                                 strlcat(temp, "NG", sizeof(temp));
1744                                         strlcat(temp, ":", sizeof(temp));
1745                                         if (cl.stats[STAT_ITEMS] & IT_SUPER_NAILGUN)
1746                                                 strlcat(temp, "SNG", sizeof(temp));
1747                                         strlcat(temp, ":", sizeof(temp));
1748                                         if (cl.stats[STAT_ITEMS] & IT_GRENADE_LAUNCHER)
1749                                                 strlcat(temp, "GL", sizeof(temp));
1750                                         strlcat(temp, ":", sizeof(temp));
1751                                         if (cl.stats[STAT_ITEMS] & IT_ROCKET_LAUNCHER)
1752                                                 strlcat(temp, "RL", sizeof(temp));
1753                                         strlcat(temp, ":", sizeof(temp));
1754                                         if (cl.stats[STAT_ITEMS] & IT_LIGHTNING)
1755                                                 strlcat(temp, "LG", sizeof(temp));
1756                                         break;
1757                                 default:
1758                                         // not a recognized macro, print it as-is...
1759                                         temp[0] = s[0];
1760                                         temp[1] = s[1];
1761                                         temp[2] = 0;
1762                                         break;
1763                                 }
1764                                 // write the resulting text
1765                                 SZ_Write(&cls.netcon->message, (unsigned char *)temp, strlen(temp));
1766                                 s += 2;
1767                                 continue;
1768                         }
1769                         MSG_WriteByte(&cls.netcon->message, *s);
1770                         s++;
1771                 }
1772                 MSG_WriteByte(&cls.netcon->message, 0);
1773         }
1774         else // any other command is passed on as-is
1775                 SZ_Write(&cls.netcon->message, (const unsigned char *)s, (int)strlen(s) + 1);
1776 }
1777
1778 /*
1779 ===================
1780 Cmd_ForwardToServer
1781
1782 Sends the entire command line over to the server
1783 ===================
1784 */
1785 void Cmd_ForwardToServer (void)
1786 {
1787         const char *s;
1788         if (!strcasecmp(Cmd_Argv(0), "cmd"))
1789         {
1790                 // we want to strip off "cmd", so just send the args
1791                 s = Cmd_Argc() > 1 ? Cmd_Args() : "";
1792         }
1793         else
1794         {
1795                 // we need to keep the command name, so send Cmd_Argv(0), a space and then Cmd_Args()
1796                 s = va("%s %s", Cmd_Argv(0), Cmd_Argc() > 1 ? Cmd_Args() : "");
1797         }
1798         // don't send an empty forward message if the user tries "cmd" by itself
1799         if (!s || !*s)
1800                 return;
1801         Cmd_ForwardStringToServer(s);
1802 }
1803
1804
1805 /*
1806 ================
1807 Cmd_CheckParm
1808
1809 Returns the position (1 to argc-1) in the command's argument list
1810 where the given parameter apears, or 0 if not present
1811 ================
1812 */
1813
1814 int Cmd_CheckParm (const char *parm)
1815 {
1816         int i;
1817
1818         if (!parm)
1819         {
1820                 Con_Printf ("Cmd_CheckParm: NULL");
1821                 return 0;
1822         }
1823
1824         for (i = 1; i < Cmd_Argc (); i++)
1825                 if (!strcasecmp (parm, Cmd_Argv (i)))
1826                         return i;
1827
1828         return 0;
1829 }
1830