do not exit comment by ;, only by linefeed
[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 #define CMDBUFSIZE 131072
29 // maximum number of parameters to a command
30 #define MAX_ARGS 80
31 // maximum tokenizable commandline length (counting NUL terminations)
32 #define CMD_TOKENIZELENGTH (MAX_INPUTLINE + MAX_ARGS)
33
34 typedef struct cmdalias_s
35 {
36         struct cmdalias_s *next;
37         char name[MAX_ALIAS_NAME];
38         char *value;
39 } cmdalias_t;
40
41 static cmdalias_t *cmd_alias;
42
43 static qboolean cmd_wait;
44
45 static mempool_t *cmd_mempool;
46
47 static char cmd_tokenizebuffer[CMD_TOKENIZELENGTH];
48 static int cmd_tokenizebufferpos = 0;
49
50 //=============================================================================
51
52 /*
53 ============
54 Cmd_Wait_f
55
56 Causes execution of the remainder of the command buffer to be delayed until
57 next frame.  This allows commands like:
58 bind g "impulse 5 ; +attack ; wait ; -attack ; impulse 2"
59 ============
60 */
61 static void Cmd_Wait_f (void)
62 {
63         cmd_wait = true;
64 }
65
66 typedef struct cmddeferred_s
67 {
68         struct cmddeferred_s *next;
69         char *value;
70         double time;
71 } cmddeferred_t;
72
73 static cmddeferred_t *cmd_deferred_list = NULL;
74
75 /*
76 ============
77 Cmd_Defer_f
78
79 Cause a command to be executed after a delay.
80 ============
81 */
82 static void Cmd_Defer_f (void)
83 {
84         if(Cmd_Argc() == 1)
85         {
86                 double time = Sys_DoubleTime();
87                 cmddeferred_t *next = cmd_deferred_list;
88                 if(!next)
89                         Con_Printf("No commands are pending.\n");
90                 while(next)
91                 {
92                         Con_Printf("-> In %9.2f: %s\n", next->time-time, next->value);
93                         next = next->next;
94                 }
95         } else if(Cmd_Argc() == 2 && !strcasecmp("clear", Cmd_Argv(1)))
96         {
97                 while(cmd_deferred_list)
98                 {
99                         cmddeferred_t *cmd = cmd_deferred_list;
100                         cmd_deferred_list = cmd->next;
101                         Mem_Free(cmd->value);
102                         Mem_Free(cmd);
103                 }
104         } else if(Cmd_Argc() == 3)
105         {
106                 const char *value = Cmd_Argv(2);
107                 cmddeferred_t *defcmd = (cmddeferred_t*)Mem_Alloc(tempmempool, sizeof(*defcmd));
108                 size_t len = strlen(value);
109
110                 defcmd->time = Sys_DoubleTime() + atof(Cmd_Argv(1));
111                 defcmd->value = (char*)Mem_Alloc(tempmempool, len+1);
112                 memcpy(defcmd->value, value, len+1);
113                 defcmd->next = NULL;
114
115                 if(cmd_deferred_list)
116                 {
117                         cmddeferred_t *next = cmd_deferred_list;
118                         while(next->next)
119                                 next = next->next;
120                         next->next = defcmd;
121                 } else
122                         cmd_deferred_list = defcmd;
123                 /* Stupid me... this changes the order... so commands with the same delay go blub :S
124                   defcmd->next = cmd_deferred_list;
125                   cmd_deferred_list = defcmd;*/
126         } else {
127                 Con_Printf("usage: defer <seconds> <command>\n"
128                            "       defer clear\n");
129                 return;
130         }
131 }
132
133 /*
134 ============
135 Cmd_Centerprint_f
136
137 Print something to the center of the screen using SCR_Centerprint
138 ============
139 */
140 static void Cmd_Centerprint_f (void)
141 {
142         char msg[MAX_INPUTLINE];
143         unsigned int i, c, p;
144         c = Cmd_Argc();
145         if(c >= 2)
146         {
147                 strlcpy(msg, Cmd_Argv(1), sizeof(msg));
148                 for(i = 2; i < c; ++i)
149                 {
150                         strlcat(msg, " ", sizeof(msg));
151                         strlcat(msg, Cmd_Argv(i), sizeof(msg));
152                 }
153                 c = strlen(msg);
154                 for(p = 0, i = 0; i < c; ++i)
155                 {
156                         if(msg[i] == '\\')
157                         {
158                                 if(msg[i+1] == 'n')
159                                         msg[p++] = '\n';
160                                 else if(msg[i+1] == '\\')
161                                         msg[p++] = '\\';
162                                 else {
163                                         msg[p++] = '\\';
164                                         msg[p++] = msg[i+1];
165                                 }
166                                 ++i;
167                         } else {
168                                 msg[p++] = msg[i];
169                         }
170                 }
171                 msg[p] = '\0';
172                 SCR_CenterPrint(msg);
173         }
174 }
175
176 /*
177 =============================================================================
178
179                                                 COMMAND BUFFER
180
181 =============================================================================
182 */
183
184 static sizebuf_t        cmd_text;
185 static unsigned char            cmd_text_buf[CMDBUFSIZE];
186
187 /*
188 ============
189 Cbuf_AddText
190
191 Adds command text at the end of the buffer
192 ============
193 */
194 void Cbuf_AddText (const char *text)
195 {
196         int             l;
197
198         l = (int)strlen (text);
199
200         if (cmd_text.cursize + l >= cmd_text.maxsize)
201         {
202                 Con_Print("Cbuf_AddText: overflow\n");
203                 return;
204         }
205
206         SZ_Write (&cmd_text, (const unsigned char *)text, (int)strlen (text));
207 }
208
209
210 /*
211 ============
212 Cbuf_InsertText
213
214 Adds command text immediately after the current command
215 Adds a \n to the text
216 FIXME: actually change the command buffer to do less copying
217 ============
218 */
219 void Cbuf_InsertText (const char *text)
220 {
221         char    *temp;
222         int             templen;
223
224         // copy off any commands still remaining in the exec buffer
225         templen = cmd_text.cursize;
226         if (templen)
227         {
228                 temp = (char *)Mem_Alloc (tempmempool, templen);
229                 memcpy (temp, cmd_text.data, templen);
230                 SZ_Clear (&cmd_text);
231         }
232         else
233                 temp = NULL;
234
235         // add the entire text of the file
236         Cbuf_AddText (text);
237
238         // add the copied off data
239         if (temp != NULL)
240         {
241                 SZ_Write (&cmd_text, (const unsigned char *)temp, templen);
242                 Mem_Free (temp);
243         }
244 }
245
246 /*
247 ============
248 Cbuf_Execute_Deferred --blub
249 ============
250 */
251 void Cbuf_Execute_Deferred (void)
252 {
253         cmddeferred_t *cmd, *prev;
254         double time = Sys_DoubleTime();
255         prev = NULL;
256         cmd = cmd_deferred_list;
257         while(cmd)
258         {
259                 if(cmd->time <= time)
260                 {
261                         Cbuf_AddText(cmd->value);
262                         Cbuf_AddText(";\n");
263                         Mem_Free(cmd->value);
264
265                         if(prev) {
266                                 prev->next = cmd->next;
267                                 Mem_Free(cmd);
268                                 cmd = prev->next;
269                         } else {
270                                 cmd_deferred_list = cmd->next;
271                                 Mem_Free(cmd);
272                                 cmd = cmd_deferred_list;
273                         }
274                         continue;
275                 }
276                 prev = cmd;
277                 cmd = cmd->next;
278         }
279 }
280
281 /*
282 ============
283 Cbuf_Execute
284 ============
285 */
286 static void Cmd_PreprocessString( const char *intext, char *outtext, unsigned maxoutlen, cmdalias_t *alias );
287 void Cbuf_Execute (void)
288 {
289         int i;
290         char *text;
291         char line[MAX_INPUTLINE];
292         char preprocessed[MAX_INPUTLINE];
293         char *firstchar;
294         qboolean quotes, comment;
295
296         // LordHavoc: making sure the tokenizebuffer doesn't get filled up by repeated crashes
297         cmd_tokenizebufferpos = 0;
298
299         Cbuf_Execute_Deferred();
300         while (cmd_text.cursize)
301         {
302 // find a \n or ; line break
303                 text = (char *)cmd_text.data;
304
305                 quotes = false;
306                 comment = false;
307                 for (i=0 ; i < cmd_text.cursize ; i++)
308                 {
309                         if(!comment)
310                         {
311                                 if (text[i] == '"')
312                                         quotes = !quotes;
313
314                                 if(quotes)
315                                 {
316                                         // make sure i doesn't get > cursize which causes a negative
317                                         // size in memmove, which is fatal --blub
318                                         if (i < (cmd_text.cursize-1) && (text[i] == '\\' && (text[i+1] == '"' || text[i+1] == '\\')))
319                                                 i++;
320                                 }
321                                 else
322                                 {
323                                         if(text[i] == '/' && text[i + 1] == '/')
324                                                 comment = true;
325                                         if(text[i] == ';')
326                                                 break;  // don't break if inside a quoted string or comment
327                                 }
328                         }
329
330                         if (text[i] == '\r' || text[i] == '\n')
331                                 break;
332                 }
333
334                 // better than CRASHING on overlong input lines that may SOMEHOW enter the buffer
335                 if(i >= MAX_INPUTLINE)
336                 {
337                         Con_Printf("Warning: console input buffer had an overlong line. Ignored.\n");
338                         line[0] = 0;
339                 }
340                 else
341                 {
342                         memcpy (line, text, i);
343                         line[i] = 0;
344                 }
345
346 // delete the text from the command buffer and move remaining commands down
347 // this is necessary because commands (exec, alias) can insert data at the
348 // beginning of the text buffer
349
350                 if (i == cmd_text.cursize)
351                         cmd_text.cursize = 0;
352                 else
353                 {
354                         i++;
355                         cmd_text.cursize -= i;
356                         memmove (cmd_text.data, text+i, cmd_text.cursize);
357                 }
358
359 // execute the command line
360                 firstchar = line + strspn(line, " \t");
361                 if(
362                         (strncmp(firstchar, "alias", 5) || (firstchar[5] != ' ' && firstchar[5] != '\t'))
363                         &&
364                         (strncmp(firstchar, "bind", 4) || (firstchar[4] != ' ' && firstchar[4] != '\t'))
365                         &&
366                         (strncmp(firstchar, "in_bind", 7) || (firstchar[7] != ' ' && firstchar[7] != '\t'))
367                 )
368                 {
369                         Cmd_PreprocessString( line, preprocessed, sizeof(preprocessed), NULL );
370                         Cmd_ExecuteString (preprocessed, src_command);
371                 }
372                 else
373                 {
374                         Cmd_ExecuteString (line, src_command);
375                 }
376
377                 if (cmd_wait)
378                 {       // skip out while text still remains in buffer, leaving it
379                         // for next frame
380                         cmd_wait = false;
381                         break;
382                 }
383         }
384 }
385
386 /*
387 ==============================================================================
388
389                                                 SCRIPT COMMANDS
390
391 ==============================================================================
392 */
393
394 /*
395 ===============
396 Cmd_StuffCmds_f
397
398 Adds command line parameters as script statements
399 Commands lead with a +, and continue until a - or another +
400 quake +prog jctest.qp +cmd amlev1
401 quake -nosound +cmd amlev1
402 ===============
403 */
404 qboolean host_stuffcmdsrun = false;
405 void Cmd_StuffCmds_f (void)
406 {
407         int             i, j, l;
408         // this is for all commandline options combined (and is bounds checked)
409         char    build[MAX_INPUTLINE];
410
411         if (Cmd_Argc () != 1)
412         {
413                 Con_Print("stuffcmds : execute command line parameters\n");
414                 return;
415         }
416
417         // no reason to run the commandline arguments twice
418         if (host_stuffcmdsrun)
419                 return;
420
421         host_stuffcmdsrun = true;
422         build[0] = 0;
423         l = 0;
424         for (i = 0;i < com_argc;i++)
425         {
426                 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)
427                 {
428                         j = 1;
429                         while (com_argv[i][j])
430                                 build[l++] = com_argv[i][j++];
431                         i++;
432                         for (;i < com_argc;i++)
433                         {
434                                 if (!com_argv[i])
435                                         continue;
436                                 if ((com_argv[i][0] == '+' || com_argv[i][0] == '-') && (com_argv[i][1] < '0' || com_argv[i][1] > '9'))
437                                         break;
438                                 if (l + strlen(com_argv[i]) + 4 > sizeof(build) - 1)
439                                         break;
440                                 build[l++] = ' ';
441                                 if (strchr(com_argv[i], ' '))
442                                         build[l++] = '\"';
443                                 for (j = 0;com_argv[i][j];j++)
444                                         build[l++] = com_argv[i][j];
445                                 if (strchr(com_argv[i], ' '))
446                                         build[l++] = '\"';
447                         }
448                         build[l++] = '\n';
449                         i--;
450                 }
451         }
452         // now terminate the combined string and prepend it to the command buffer
453         // we already reserved space for the terminator
454         build[l++] = 0;
455         Cbuf_InsertText (build);
456 }
457
458
459 /*
460 ===============
461 Cmd_Exec_f
462 ===============
463 */
464 static void Cmd_Exec_f (void)
465 {
466         char *f;
467
468         if (Cmd_Argc () != 2)
469         {
470                 Con_Print("exec <filename> : execute a script file\n");
471                 return;
472         }
473
474         f = (char *)FS_LoadFile (Cmd_Argv(1), tempmempool, false, NULL);
475         if (!f)
476         {
477                 Con_Printf("couldn't exec %s\n",Cmd_Argv(1));
478                 return;
479         }
480         Con_Printf("execing %s\n",Cmd_Argv(1));
481
482         // if executing default.cfg for the first time, lock the cvar defaults
483         // it may seem backwards to insert this text BEFORE the default.cfg
484         // but Cbuf_InsertText inserts before, so this actually ends up after it.
485         if (!strcmp(Cmd_Argv(1), "default.cfg"))
486                 Cbuf_InsertText("\ncvar_lockdefaults\n");
487
488         // insert newline after the text to make sure the last line is terminated (some text editors omit the trailing newline)
489         // (note: insertion order here is backwards from execution order, so this adds it after the text, by calling it before...)
490         Cbuf_InsertText ("\n");
491         Cbuf_InsertText (f);
492         Mem_Free(f);
493 }
494
495
496 /*
497 ===============
498 Cmd_Echo_f
499
500 Just prints the rest of the line to the console
501 ===============
502 */
503 static void Cmd_Echo_f (void)
504 {
505         int             i;
506
507         for (i=1 ; i<Cmd_Argc() ; i++)
508                 Con_Printf("%s ",Cmd_Argv(i));
509         Con_Print("\n");
510 }
511
512 // DRESK - 5/14/06
513 // Support Doom3-style Toggle Console Command
514 /*
515 ===============
516 Cmd_Toggle_f
517
518 Toggles a specified console variable amongst the values specified (default is 0 and 1)
519 ===============
520 */
521 static void Cmd_Toggle_f(void)
522 {
523         // Acquire Number of Arguments
524         int nNumArgs = Cmd_Argc();
525
526         if(nNumArgs == 1)
527                 // No Arguments Specified; Print Usage
528                 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");
529         else
530         { // Correct Arguments Specified
531                 // Acquire Potential CVar
532                 cvar_t* cvCVar = Cvar_FindVar( Cmd_Argv(1) );
533
534                 if(cvCVar != NULL)
535                 { // Valid CVar
536                         if(nNumArgs == 2)
537                         { // Default Usage
538                                 if(cvCVar->integer)
539                                         Cvar_SetValueQuick(cvCVar, 0);
540                                 else
541                                         Cvar_SetValueQuick(cvCVar, 1);
542                         }
543                         else
544                         if(nNumArgs == 3)
545                         { // 0 and Specified Usage
546                                 if(cvCVar->integer == atoi(Cmd_Argv(2) ) )
547                                         // CVar is Specified Value; // Reset to 0
548                                         Cvar_SetValueQuick(cvCVar, 0);
549                                 else
550                                 if(cvCVar->integer == 0)
551                                         // CVar is 0; Specify Value
552                                         Cvar_SetQuick(cvCVar, Cmd_Argv(2) );
553                                 else
554                                         // CVar does not match; Reset to 0
555                                         Cvar_SetValueQuick(cvCVar, 0);
556                         }
557                         else
558                         { // Variable Values Specified
559                                 int nCnt;
560                                 int bFound = 0;
561
562                                 for(nCnt = 2; nCnt < nNumArgs; nCnt++)
563                                 { // Cycle through Values
564                                         if( strcmp(cvCVar->string, Cmd_Argv(nCnt) ) == 0)
565                                         { // Current Value Located; Increment to Next
566                                                 if( (nCnt + 1) == nNumArgs)
567                                                         // Max Value Reached; Reset
568                                                         Cvar_SetQuick(cvCVar, Cmd_Argv(2) );
569                                                 else
570                                                         // Next Value
571                                                         Cvar_SetQuick(cvCVar, Cmd_Argv(nCnt + 1) );
572
573                                                 // End Loop
574                                                 nCnt = nNumArgs;
575                                                 // Assign Found
576                                                 bFound = 1;
577                                         }
578                                 }
579                                 if(!bFound)
580                                         // Value not Found; Reset to Original
581                                         Cvar_SetQuick(cvCVar, Cmd_Argv(2) );
582                         }
583
584                 }
585                 else
586                 { // Invalid CVar
587                         Con_Printf("ERROR : CVar '%s' not found\n", Cmd_Argv(1) );
588                 }
589         }
590 }
591
592 /*
593 ===============
594 Cmd_Alias_f
595
596 Creates a new command that executes a command string (possibly ; seperated)
597 ===============
598 */
599 static void Cmd_Alias_f (void)
600 {
601         cmdalias_t      *a;
602         char            cmd[MAX_INPUTLINE];
603         int                     i, c;
604         const char              *s;
605         size_t          alloclen;
606
607         if (Cmd_Argc() == 1)
608         {
609                 Con_Print("Current alias commands:\n");
610                 for (a = cmd_alias ; a ; a=a->next)
611                         Con_Printf("%s : %s\n", a->name, a->value);
612                 return;
613         }
614
615         s = Cmd_Argv(1);
616         if (strlen(s) >= MAX_ALIAS_NAME)
617         {
618                 Con_Print("Alias name is too long\n");
619                 return;
620         }
621
622         // if the alias already exists, reuse it
623         for (a = cmd_alias ; a ; a=a->next)
624         {
625                 if (!strcmp(s, a->name))
626                 {
627                         Z_Free (a->value);
628                         break;
629                 }
630         }
631
632         if (!a)
633         {
634                 cmdalias_t *prev, *current;
635
636                 a = (cmdalias_t *)Z_Malloc (sizeof(cmdalias_t));
637                 strlcpy (a->name, s, sizeof (a->name));
638                 // insert it at the right alphanumeric position
639                 for( prev = NULL, current = cmd_alias ; current && strcmp( current->name, a->name ) < 0 ; prev = current, current = current->next )
640                         ;
641                 if( prev ) {
642                         prev->next = a;
643                 } else {
644                         cmd_alias = a;
645                 }
646                 a->next = current;
647         }
648
649
650 // copy the rest of the command line
651         cmd[0] = 0;             // start out with a null string
652         c = Cmd_Argc();
653         for (i=2 ; i< c ; i++)
654         {
655                 strlcat (cmd, Cmd_Argv(i), sizeof (cmd));
656                 if (i != c)
657                         strlcat (cmd, " ", sizeof (cmd));
658         }
659         strlcat (cmd, "\n", sizeof (cmd));
660
661         alloclen = strlen (cmd) + 1;
662         a->value = (char *)Z_Malloc (alloclen);
663         memcpy (a->value, cmd, alloclen);
664 }
665
666 /*
667 =============================================================================
668
669                                         COMMAND EXECUTION
670
671 =============================================================================
672 */
673
674 typedef struct cmd_function_s
675 {
676         struct cmd_function_s *next;
677         const char *name;
678         const char *description;
679         xcommand_t consolefunction;
680         xcommand_t clientfunction;
681         qboolean csqcfunc;
682 } cmd_function_t;
683
684 static int cmd_argc;
685 static const char *cmd_argv[MAX_ARGS];
686 static const char *cmd_null_string = "";
687 static const char *cmd_args;
688 cmd_source_t cmd_source;
689
690
691 static cmd_function_t *cmd_functions;           // possible commands to execute
692
693 static const char *Cmd_GetDirectCvarValue(const char *varname, cmdalias_t *alias, qboolean *is_multiple)
694 {
695         cvar_t *cvar;
696         long argno;
697         char *endptr;
698
699         if(is_multiple)
700                 *is_multiple = false;
701
702         if(!varname || !*varname)
703                 return NULL;
704
705         if(alias)
706         {
707                 if(!strcmp(varname, "*"))
708                 {
709                         if(is_multiple)
710                                 *is_multiple = true;
711                         return Cmd_Args();
712                 }
713                 else if(varname[strlen(varname) - 1] == '-')
714                 {
715                         argno = strtol(varname, &endptr, 10);
716                         if(endptr == varname + strlen(varname) - 1)
717                         {
718                                 // whole string is a number, apart from the -
719                                 const char *p = Cmd_Args();
720                                 for(; argno > 1; --argno)
721                                         if(!COM_ParseToken_Console(&p))
722                                                 break;
723                                 if(p)
724                                 {
725                                         if(is_multiple)
726                                                 *is_multiple = true;
727
728                                         // kill pre-argument whitespace
729                                         for (;*p && ISWHITESPACE(*p);p++)
730                                                 ;
731
732                                         return p;
733                                 }
734                         }
735                 }
736                 else
737                 {
738                         argno = strtol(varname, &endptr, 10);
739                         if(*endptr == 0)
740                         {
741                                 // whole string is a number
742                                 // NOTE: we already made sure we don't have an empty cvar name!
743                                 if(argno >= 0 && argno < Cmd_Argc())
744                                         return Cmd_Argv(argno);
745                         }
746                 }
747         }
748
749         if((cvar = Cvar_FindVar(varname)) && !(cvar->flags & CVAR_PRIVATE))
750                 return cvar->string;
751
752         return NULL;
753 }
754
755 qboolean Cmd_QuoteString(char *out, size_t outlen, const char *in, const char *quoteset)
756 {
757         qboolean quote_quot = !!strchr(quoteset, '"');
758         qboolean quote_backslash = !!strchr(quoteset, '\\');
759         qboolean quote_dollar = !!strchr(quoteset, '$');
760
761         while(*in)
762         {
763                 if(*in == '"' && quote_quot)
764                 {
765                         if(outlen <= 2)
766                         {
767                                 *out++ = 0;
768                                 return false;
769                         }
770                         *out++ = '\\'; --outlen;
771                         *out++ = '"'; --outlen;
772                 }
773                 else if(*in == '\\' && quote_backslash)
774                 {
775                         if(outlen <= 2)
776                         {
777                                 *out++ = 0;
778                                 return false;
779                         }
780                         *out++ = '\\'; --outlen;
781                         *out++ = '\\'; --outlen;
782                 }
783                 else if(*in == '$' && quote_dollar)
784                 {
785                         if(outlen <= 2)
786                         {
787                                 *out++ = 0;
788                                 return false;
789                         }
790                         *out++ = '$'; --outlen;
791                         *out++ = '$'; --outlen;
792                 }
793                 else
794                 {
795                         if(outlen <= 1)
796                         {
797                                 *out++ = 0;
798                                 return false;
799                         }
800                         *out++ = *in; --outlen;
801                 }
802                 ++in;
803         }
804         *out++ = 0;
805         return true;
806 }
807
808 static const char *Cmd_GetCvarValue(const char *var, size_t varlen, cmdalias_t *alias)
809 {
810         static char varname[MAX_INPUTLINE];
811         static char varval[MAX_INPUTLINE];
812         const char *varstr;
813         char *varfunc;
814
815         if(varlen >= MAX_INPUTLINE)
816                 varlen = MAX_INPUTLINE - 1;
817         memcpy(varname, var, varlen);
818         varname[varlen] = 0;
819         varfunc = strchr(varname, ' ');
820
821         if(varfunc)
822         {
823                 *varfunc = 0;
824                 ++varfunc;
825         }
826
827         if(*var == 0)
828         {
829                 // empty cvar name?
830                 return NULL;
831         }
832
833         varstr = NULL;
834
835         if(varname[0] == '$')
836                 varstr = Cmd_GetDirectCvarValue(Cmd_GetDirectCvarValue(varname + 1, alias, NULL), alias, NULL);
837         else
838         {
839                 qboolean is_multiple = false;
840                 // Exception: $* and $n- don't use the quoted form by default
841                 varstr = Cmd_GetDirectCvarValue(varname, alias, &is_multiple);
842                 if(is_multiple)
843                         if(!varfunc)
844                                 varfunc = "asis";
845         }
846
847         if(!varstr)
848         {
849                 if(alias)
850                         Con_Printf("Warning: Could not expand $%s in alias %s\n", varname, alias->name);
851                 else
852                         Con_Printf("Warning: Could not expand $%s\n", varname);
853                 return NULL;
854         }
855
856         if(!varfunc || !strcmp(varfunc, "q")) // note: quoted form is default, use "asis" to override!
857         {
858                 // quote it so it can be used inside double quotes
859                 // we just need to replace " by \", and of course, double backslashes
860                 Cmd_QuoteString(varval, sizeof(varval), varstr, "\"\\");
861                 return varval;
862         }
863         else if(!strcmp(varfunc, "asis"))
864         {
865                 return varstr;
866         }
867         else
868                 Con_Printf("Unknown variable function %s\n", varfunc);
869
870         return varstr;
871 }
872
873 /*
874 Cmd_PreprocessString
875
876 Preprocesses strings and replaces $*, $param#, $cvar accordingly
877 */
878 static void Cmd_PreprocessString( const char *intext, char *outtext, unsigned maxoutlen, cmdalias_t *alias ) {
879         const char *in;
880         size_t eat, varlen;
881         unsigned outlen;
882         const char *val;
883
884         // don't crash if there's no room in the outtext buffer
885         if( maxoutlen == 0 ) {
886                 return;
887         }
888         maxoutlen--; // because of \0
889
890         in = intext;
891         outlen = 0;
892
893         while( *in && outlen < maxoutlen ) {
894                 if( *in == '$' ) {
895                         // this is some kind of expansion, see what comes after the $
896                         in++;
897
898                         // The console does the following preprocessing:
899                         //
900                         // - $$ is transformed to a single dollar sign.
901                         // - $var or ${var} are expanded to the contents of the named cvar,
902                         //   with quotation marks and backslashes quoted so it can safely
903                         //   be used inside quotation marks (and it should always be used
904                         //   that way)
905                         // - ${var asis} inserts the cvar value as is, without doing this
906                         //   quoting
907                         // - prefix the cvar name with a dollar sign to do indirection;
908                         //   for example, if $x has the value timelimit, ${$x} will return
909                         //   the value of $timelimit
910                         // - when expanding an alias, the special variable name $* refers
911                         //   to all alias parameters, and a number refers to that numbered
912                         //   alias parameter, where the name of the alias is $0, the first
913                         //   parameter is $1 and so on; as a special case, $* inserts all
914                         //   parameters, without extra quoting, so one can use $* to just
915                         //   pass all parameters around. All parameters starting from $n
916                         //   can be referred to as $n- (so $* is equivalent to $1-).
917                         //
918                         // Note: when expanding an alias, cvar expansion is done in the SAME step
919                         // as alias expansion so that alias parameters or cvar values containing
920                         // dollar signs have no unwanted bad side effects. However, this needs to
921                         // be accounted for when writing complex aliases. For example,
922                         //   alias foo "set x NEW; echo $x"
923                         // actually expands to
924                         //   "set x NEW; echo OLD"
925                         // and will print OLD! To work around this, use a second alias:
926                         //   alias foo "set x NEW; foo2"
927                         //   alias foo2 "echo $x"
928                         //
929                         // Also note: lines starting with alias are exempt from cvar expansion.
930                         // If you want cvar expansion, write "alias" instead:
931                         //
932                         //   set x 1
933                         //   alias foo "echo $x"
934                         //   "alias" bar "echo $x"
935                         //   set x 2
936                         //
937                         // foo will print 2, because the variable $x will be expanded when the alias
938                         // gets expanded. bar will print 1, because the variable $x was expanded
939                         // at definition time. foo can be equivalently defined as
940                         //
941                         //   "alias" foo "echo $$x"
942                         //
943                         // because at definition time, $$ will get replaced to a single $.
944
945                         if( *in == '$' ) {
946                                 val = "$";
947                                 eat = 1;
948                         } else if(*in == '{') {
949                                 varlen = strcspn(in + 1, "}");
950                                 if(in[varlen + 1] == '}')
951                                 {
952                                         val = Cmd_GetCvarValue(in + 1, varlen, alias);
953                                         eat = varlen + 2;
954                                 }
955                                 else
956                                 {
957                                         // ran out of data?
958                                         val = NULL;
959                                         eat = varlen + 1;
960                                 }
961                         } else {
962                                 varlen = strspn(in, "*0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ_-");
963                                 val = Cmd_GetCvarValue(in, varlen, alias);
964                                 eat = varlen;
965                         }
966                         if(val)
967                         {
968                                 // insert the cvar value
969                                 while(*val && outlen < maxoutlen)
970                                         outtext[outlen++] = *val++;
971                                 in += eat;
972                         }
973                         else
974                         {
975                                 // copy the unexpanded text
976                                 outtext[outlen++] = '$';
977                                 while(eat && outlen < maxoutlen)
978                                 {
979                                         outtext[outlen++] = *in++;
980                                         --eat;
981                                 }
982                         }
983                 } else {
984                         outtext[outlen++] = *in++;
985                 }
986         }
987         outtext[outlen] = 0;
988 }
989
990 /*
991 ============
992 Cmd_ExecuteAlias
993
994 Called for aliases and fills in the alias into the cbuffer
995 ============
996 */
997 static void Cmd_ExecuteAlias (cmdalias_t *alias)
998 {
999         static char buffer[ MAX_INPUTLINE ];
1000         static char buffer2[ MAX_INPUTLINE ];
1001         Cmd_PreprocessString( alias->value, buffer, sizeof(buffer) - 2, alias );
1002         // insert at start of command buffer, so that aliases execute in order
1003         // (fixes bug introduced by Black on 20050705)
1004
1005         // Note: Cbuf_PreprocessString will be called on this string AGAIN! So we
1006         // have to make sure that no second variable expansion takes place, otherwise
1007         // alias parameters containing dollar signs can have bad effects.
1008         Cmd_QuoteString(buffer2, sizeof(buffer2), buffer, "$");
1009         Cbuf_InsertText( buffer2 );
1010 }
1011
1012 /*
1013 ========
1014 Cmd_List
1015
1016         CmdList Added by EvilTypeGuy eviltypeguy@qeradiant.com
1017         Thanks to Matthias "Maddes" Buecher, http://www.inside3d.com/qip/
1018
1019 ========
1020 */
1021 static void Cmd_List_f (void)
1022 {
1023         cmd_function_t *cmd;
1024         const char *partial;
1025         int len, count;
1026
1027         if (Cmd_Argc() > 1)
1028         {
1029                 partial = Cmd_Argv (1);
1030                 len = (int)strlen(partial);
1031         }
1032         else
1033         {
1034                 partial = NULL;
1035                 len = 0;
1036         }
1037
1038         count = 0;
1039         for (cmd = cmd_functions; cmd; cmd = cmd->next)
1040         {
1041                 if (partial && strncmp(partial, cmd->name, len))
1042                         continue;
1043                 Con_Printf("%s : %s\n", cmd->name, cmd->description);
1044                 count++;
1045         }
1046
1047         if (partial)
1048                 Con_Printf("%i Command%s beginning with \"%s\"\n\n", count, (count > 1) ? "s" : "", partial);
1049         else
1050                 Con_Printf("%i Command%s\n\n", count, (count > 1) ? "s" : "");
1051 }
1052
1053 /*
1054 ============
1055 Cmd_Init
1056 ============
1057 */
1058 void Cmd_Init (void)
1059 {
1060         cmd_mempool = Mem_AllocPool("commands", 0, NULL);
1061         // space for commands and script files
1062         cmd_text.data = cmd_text_buf;
1063         cmd_text.maxsize = sizeof(cmd_text_buf);
1064         cmd_text.cursize = 0;
1065 }
1066
1067 void Cmd_Init_Commands (void)
1068 {
1069 //
1070 // register our commands
1071 //
1072         Cmd_AddCommand ("stuffcmds",Cmd_StuffCmds_f, "execute commandline parameters (must be present in quake.rc script)");
1073         Cmd_AddCommand ("exec",Cmd_Exec_f, "execute a script file");
1074         Cmd_AddCommand ("echo",Cmd_Echo_f, "print a message to the console (useful in scripts)");
1075         Cmd_AddCommand ("alias",Cmd_Alias_f, "create a script function (parameters are passed in as $1 through $9, and $* for all parameters)");
1076         Cmd_AddCommand ("cmd", Cmd_ForwardToServer, "send a console commandline to the server (used by some mods)");
1077         Cmd_AddCommand ("wait", Cmd_Wait_f, "make script execution wait for next rendered frame");
1078         Cmd_AddCommand ("set", Cvar_Set_f, "create or change the value of a console variable");
1079         Cmd_AddCommand ("seta", Cvar_SetA_f, "create or change the value of a console variable that will be saved to config.cfg");
1080
1081         // 2000-01-09 CmdList, CvarList commands By Matthias "Maddes" Buecher
1082         // Added/Modified by EvilTypeGuy eviltypeguy@qeradiant.com
1083         Cmd_AddCommand ("cmdlist", Cmd_List_f, "lists all console commands beginning with the specified prefix");
1084         Cmd_AddCommand ("cvarlist", Cvar_List_f, "lists all console variables beginning with the specified prefix");
1085
1086         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");
1087         Cmd_AddCommand ("cvar_resettodefaults_all", Cvar_ResetToDefaults_All_f, "sets all cvars to their locked default values");
1088         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)");
1089         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)");
1090
1091         Cmd_AddCommand ("cprint", Cmd_Centerprint_f, "print something at the screen center");
1092         Cmd_AddCommand ("defer", Cmd_Defer_f, "execute a command in the future");
1093
1094         // DRESK - 5/14/06
1095         // Support Doom3-style Toggle Command
1096         Cmd_AddCommand( "toggle", Cmd_Toggle_f, "toggles a console variable's values (use for more info)");
1097 }
1098
1099 /*
1100 ============
1101 Cmd_Shutdown
1102 ============
1103 */
1104 void Cmd_Shutdown(void)
1105 {
1106         Mem_FreePool(&cmd_mempool);
1107 }
1108
1109 /*
1110 ============
1111 Cmd_Argc
1112 ============
1113 */
1114 int             Cmd_Argc (void)
1115 {
1116         return cmd_argc;
1117 }
1118
1119 /*
1120 ============
1121 Cmd_Argv
1122 ============
1123 */
1124 const char *Cmd_Argv (int arg)
1125 {
1126         if (arg >= cmd_argc )
1127                 return cmd_null_string;
1128         return cmd_argv[arg];
1129 }
1130
1131 /*
1132 ============
1133 Cmd_Args
1134 ============
1135 */
1136 const char *Cmd_Args (void)
1137 {
1138         return cmd_args;
1139 }
1140
1141
1142 /*
1143 ============
1144 Cmd_TokenizeString
1145
1146 Parses the given string into command line tokens.
1147 ============
1148 */
1149 // AK: This function should only be called from ExcuteString because the current design is a bit of an hack
1150 static void Cmd_TokenizeString (const char *text)
1151 {
1152         int l;
1153
1154         cmd_argc = 0;
1155         cmd_args = NULL;
1156
1157         while (1)
1158         {
1159                 // skip whitespace up to a /n
1160                 while (*text && ISWHITESPACE(*text) && *text != '\r' && *text != '\n')
1161                         text++;
1162
1163                 // line endings:
1164                 // UNIX: \n
1165                 // Mac: \r
1166                 // Windows: \r\n
1167                 if (*text == '\n' || *text == '\r')
1168                 {
1169                         // a newline separates commands in the buffer
1170                         if (*text == '\r' && text[1] == '\n')
1171                                 text++;
1172                         text++;
1173                         break;
1174                 }
1175
1176                 if (!*text)
1177                         return;
1178
1179                 if (cmd_argc == 1)
1180                         cmd_args = text;
1181
1182                 if (!COM_ParseToken_Console(&text))
1183                         return;
1184
1185                 if (cmd_argc < MAX_ARGS)
1186                 {
1187                         l = (int)strlen(com_token) + 1;
1188                         if (cmd_tokenizebufferpos + l > CMD_TOKENIZELENGTH)
1189                         {
1190                                 Con_Printf("Cmd_TokenizeString: ran out of %i character buffer space for command arguements\n", CMD_TOKENIZELENGTH);
1191                                 break;
1192                         }
1193                         memcpy (cmd_tokenizebuffer + cmd_tokenizebufferpos, com_token, l);
1194                         cmd_argv[cmd_argc] = cmd_tokenizebuffer + cmd_tokenizebufferpos;
1195                         cmd_tokenizebufferpos += l;
1196                         cmd_argc++;
1197                 }
1198         }
1199 }
1200
1201
1202 /*
1203 ============
1204 Cmd_AddCommand
1205 ============
1206 */
1207 void Cmd_AddCommand_WithClientCommand (const char *cmd_name, xcommand_t consolefunction, xcommand_t clientfunction, const char *description)
1208 {
1209         cmd_function_t *cmd;
1210         cmd_function_t *prev, *current;
1211
1212 // fail if the command is a variable name
1213         if (Cvar_FindVar( cmd_name ))
1214         {
1215                 Con_Printf("Cmd_AddCommand: %s already defined as a var\n", cmd_name);
1216                 return;
1217         }
1218
1219 // fail if the command already exists
1220         for (cmd=cmd_functions ; cmd ; cmd=cmd->next)
1221         {
1222                 if (!strcmp (cmd_name, cmd->name))
1223                 {
1224                         if (consolefunction || clientfunction)
1225                         {
1226                                 Con_Printf("Cmd_AddCommand: %s already defined\n", cmd_name);
1227                                 return;
1228                         }
1229                         else    //[515]: csqc
1230                         {
1231                                 cmd->csqcfunc = true;
1232                                 return;
1233                         }
1234                 }
1235         }
1236
1237         cmd = (cmd_function_t *)Mem_Alloc(cmd_mempool, sizeof(cmd_function_t));
1238         cmd->name = cmd_name;
1239         cmd->consolefunction = consolefunction;
1240         cmd->clientfunction = clientfunction;
1241         cmd->description = description;
1242         if(!consolefunction && !clientfunction)                 //[515]: csqc
1243                 cmd->csqcfunc = true;
1244         cmd->next = cmd_functions;
1245
1246 // insert it at the right alphanumeric position
1247         for( prev = NULL, current = cmd_functions ; current && strcmp( current->name, cmd->name ) < 0 ; prev = current, current = current->next )
1248                 ;
1249         if( prev ) {
1250                 prev->next = cmd;
1251         } else {
1252                 cmd_functions = cmd;
1253         }
1254         cmd->next = current;
1255 }
1256
1257 void Cmd_AddCommand (const char *cmd_name, xcommand_t function, const char *description)
1258 {
1259         Cmd_AddCommand_WithClientCommand (cmd_name, function, NULL, description);
1260 }
1261
1262 /*
1263 ============
1264 Cmd_Exists
1265 ============
1266 */
1267 qboolean Cmd_Exists (const char *cmd_name)
1268 {
1269         cmd_function_t  *cmd;
1270
1271         for (cmd=cmd_functions ; cmd ; cmd=cmd->next)
1272                 if (!strcmp (cmd_name,cmd->name))
1273                         return true;
1274
1275         return false;
1276 }
1277
1278
1279 /*
1280 ============
1281 Cmd_CompleteCommand
1282 ============
1283 */
1284 const char *Cmd_CompleteCommand (const char *partial)
1285 {
1286         cmd_function_t *cmd;
1287         size_t len;
1288
1289         len = strlen(partial);
1290
1291         if (!len)
1292                 return NULL;
1293
1294 // check functions
1295         for (cmd = cmd_functions; cmd; cmd = cmd->next)
1296                 if (!strncasecmp(partial, cmd->name, len))
1297                         return cmd->name;
1298
1299         return NULL;
1300 }
1301
1302 /*
1303         Cmd_CompleteCountPossible
1304
1305         New function for tab-completion system
1306         Added by EvilTypeGuy
1307         Thanks to Fett erich@heintz.com
1308         Thanks to taniwha
1309
1310 */
1311 int Cmd_CompleteCountPossible (const char *partial)
1312 {
1313         cmd_function_t *cmd;
1314         size_t len;
1315         int h;
1316
1317         h = 0;
1318         len = strlen(partial);
1319
1320         if (!len)
1321                 return 0;
1322
1323         // Loop through the command list and count all partial matches
1324         for (cmd = cmd_functions; cmd; cmd = cmd->next)
1325                 if (!strncasecmp(partial, cmd->name, len))
1326                         h++;
1327
1328         return h;
1329 }
1330
1331 /*
1332         Cmd_CompleteBuildList
1333
1334         New function for tab-completion system
1335         Added by EvilTypeGuy
1336         Thanks to Fett erich@heintz.com
1337         Thanks to taniwha
1338
1339 */
1340 const char **Cmd_CompleteBuildList (const char *partial)
1341 {
1342         cmd_function_t *cmd;
1343         size_t len = 0;
1344         size_t bpos = 0;
1345         size_t sizeofbuf = (Cmd_CompleteCountPossible (partial) + 1) * sizeof (const char *);
1346         const char **buf;
1347
1348         len = strlen(partial);
1349         buf = (const char **)Mem_Alloc(tempmempool, sizeofbuf + sizeof (const char *));
1350         // Loop through the alias list and print all matches
1351         for (cmd = cmd_functions; cmd; cmd = cmd->next)
1352                 if (!strncasecmp(partial, cmd->name, len))
1353                         buf[bpos++] = cmd->name;
1354
1355         buf[bpos] = NULL;
1356         return buf;
1357 }
1358
1359 // written by LordHavoc
1360 void Cmd_CompleteCommandPrint (const char *partial)
1361 {
1362         cmd_function_t *cmd;
1363         size_t len = strlen(partial);
1364         // Loop through the command list and print all matches
1365         for (cmd = cmd_functions; cmd; cmd = cmd->next)
1366                 if (!strncasecmp(partial, cmd->name, len))
1367                         Con_Printf("%s : %s\n", cmd->name, cmd->description);
1368 }
1369
1370 /*
1371         Cmd_CompleteAlias
1372
1373         New function for tab-completion system
1374         Added by EvilTypeGuy
1375         Thanks to Fett erich@heintz.com
1376         Thanks to taniwha
1377
1378 */
1379 const char *Cmd_CompleteAlias (const char *partial)
1380 {
1381         cmdalias_t *alias;
1382         size_t len;
1383
1384         len = strlen(partial);
1385
1386         if (!len)
1387                 return NULL;
1388
1389         // Check functions
1390         for (alias = cmd_alias; alias; alias = alias->next)
1391                 if (!strncasecmp(partial, alias->name, len))
1392                         return alias->name;
1393
1394         return NULL;
1395 }
1396
1397 // written by LordHavoc
1398 void Cmd_CompleteAliasPrint (const char *partial)
1399 {
1400         cmdalias_t *alias;
1401         size_t len = strlen(partial);
1402         // Loop through the alias list and print all matches
1403         for (alias = cmd_alias; alias; alias = alias->next)
1404                 if (!strncasecmp(partial, alias->name, len))
1405                         Con_Printf("%s : %s\n", alias->name, alias->value);
1406 }
1407
1408
1409 /*
1410         Cmd_CompleteAliasCountPossible
1411
1412         New function for tab-completion system
1413         Added by EvilTypeGuy
1414         Thanks to Fett erich@heintz.com
1415         Thanks to taniwha
1416
1417 */
1418 int Cmd_CompleteAliasCountPossible (const char *partial)
1419 {
1420         cmdalias_t      *alias;
1421         size_t          len;
1422         int                     h;
1423
1424         h = 0;
1425
1426         len = strlen(partial);
1427
1428         if (!len)
1429                 return 0;
1430
1431         // Loop through the command list and count all partial matches
1432         for (alias = cmd_alias; alias; alias = alias->next)
1433                 if (!strncasecmp(partial, alias->name, len))
1434                         h++;
1435
1436         return h;
1437 }
1438
1439 /*
1440         Cmd_CompleteAliasBuildList
1441
1442         New function for tab-completion system
1443         Added by EvilTypeGuy
1444         Thanks to Fett erich@heintz.com
1445         Thanks to taniwha
1446
1447 */
1448 const char **Cmd_CompleteAliasBuildList (const char *partial)
1449 {
1450         cmdalias_t *alias;
1451         size_t len = 0;
1452         size_t bpos = 0;
1453         size_t sizeofbuf = (Cmd_CompleteAliasCountPossible (partial) + 1) * sizeof (const char *);
1454         const char **buf;
1455
1456         len = strlen(partial);
1457         buf = (const char **)Mem_Alloc(tempmempool, sizeofbuf + sizeof (const char *));
1458         // Loop through the alias list and print all matches
1459         for (alias = cmd_alias; alias; alias = alias->next)
1460                 if (!strncasecmp(partial, alias->name, len))
1461                         buf[bpos++] = alias->name;
1462
1463         buf[bpos] = NULL;
1464         return buf;
1465 }
1466
1467 void Cmd_ClearCsqcFuncs (void)
1468 {
1469         cmd_function_t *cmd;
1470         for (cmd=cmd_functions ; cmd ; cmd=cmd->next)
1471                 cmd->csqcfunc = false;
1472 }
1473
1474 qboolean CL_VM_ConsoleCommand (const char *cmd);
1475 /*
1476 ============
1477 Cmd_ExecuteString
1478
1479 A complete command line has been parsed, so try to execute it
1480 FIXME: lookupnoadd the token to speed search?
1481 ============
1482 */
1483 void Cmd_ExecuteString (const char *text, cmd_source_t src)
1484 {
1485         int oldpos;
1486         int found;
1487         cmd_function_t *cmd;
1488         cmdalias_t *a;
1489
1490         oldpos = cmd_tokenizebufferpos;
1491         cmd_source = src;
1492         found = false;
1493
1494         Cmd_TokenizeString (text);
1495
1496 // execute the command line
1497         if (!Cmd_Argc())
1498         {
1499                 cmd_tokenizebufferpos = oldpos;
1500                 return;         // no tokens
1501         }
1502
1503 // check functions
1504         for (cmd=cmd_functions ; cmd ; cmd=cmd->next)
1505         {
1506                 if (!strcasecmp (cmd_argv[0],cmd->name))
1507                 {
1508                         if (cmd->csqcfunc && CL_VM_ConsoleCommand (text))       //[515]: csqc
1509                                 return;
1510                         switch (src)
1511                         {
1512                         case src_command:
1513                                 if (cmd->consolefunction)
1514                                         cmd->consolefunction ();
1515                                 else if (cmd->clientfunction)
1516                                 {
1517                                         if (cls.state == ca_connected)
1518                                         {
1519                                                 // forward remote commands to the server for execution
1520                                                 Cmd_ForwardToServer();
1521                                         }
1522                                         else
1523                                                 Con_Printf("Can not send command \"%s\", not connected.\n", Cmd_Argv(0));
1524                                 }
1525                                 else
1526                                         Con_Printf("Command \"%s\" can not be executed\n", Cmd_Argv(0));
1527                                 found = true;
1528                                 goto command_found;
1529                                 break;
1530                         case src_client:
1531                                 if (cmd->clientfunction)
1532                                 {
1533                                         cmd->clientfunction ();
1534                                         cmd_tokenizebufferpos = oldpos;
1535                                         return;
1536                                 }
1537                                 break;
1538                         }
1539                         break;
1540                 }
1541         }
1542 command_found:
1543
1544         // if it's a client command and no command was found, say so.
1545         if (cmd_source == src_client)
1546         {
1547                 Con_Printf("player \"%s\" tried to %s\n", host_client->name, text);
1548                 cmd_tokenizebufferpos = oldpos;
1549                 return;
1550         }
1551
1552 // check alias
1553         for (a=cmd_alias ; a ; a=a->next)
1554         {
1555                 if (!strcasecmp (cmd_argv[0], a->name))
1556                 {
1557                         Cmd_ExecuteAlias(a);
1558                         cmd_tokenizebufferpos = oldpos;
1559                         return;
1560                 }
1561         }
1562
1563         if(found) // if the command was hooked and found, all is good
1564         {
1565                 cmd_tokenizebufferpos = oldpos;
1566                 return;
1567         }
1568
1569 // check cvars
1570         if (!Cvar_Command () && host_framecount > 0)
1571                 Con_Printf("Unknown command \"%s\"\n", Cmd_Argv(0));
1572
1573         cmd_tokenizebufferpos = oldpos;
1574 }
1575
1576
1577 /*
1578 ===================
1579 Cmd_ForwardStringToServer
1580
1581 Sends an entire command string over to the server, unprocessed
1582 ===================
1583 */
1584 void Cmd_ForwardStringToServer (const char *s)
1585 {
1586         char temp[128];
1587         if (cls.state != ca_connected)
1588         {
1589                 Con_Printf("Can't \"%s\", not connected\n", s);
1590                 return;
1591         }
1592
1593         if (!cls.netcon)
1594                 return;
1595
1596         // LordHavoc: thanks to Fuh for bringing the pure evil of SZ_Print to my
1597         // attention, it has been eradicated from here, its only (former) use in
1598         // all of darkplaces.
1599         if (cls.protocol == PROTOCOL_QUAKEWORLD)
1600                 MSG_WriteByte(&cls.netcon->message, qw_clc_stringcmd);
1601         else
1602                 MSG_WriteByte(&cls.netcon->message, clc_stringcmd);
1603         if ((!strncmp(s, "say ", 4) || !strncmp(s, "say_team ", 9)) && cl_locs_enable.integer)
1604         {
1605                 // say/say_team commands can replace % character codes with status info
1606                 while (*s)
1607                 {
1608                         if (*s == '%' && s[1])
1609                         {
1610                                 // handle proquake message macros
1611                                 temp[0] = 0;
1612                                 switch (s[1])
1613                                 {
1614                                 case 'l': // current location
1615                                         CL_Locs_FindLocationName(temp, sizeof(temp), cl.movement_origin);
1616                                         break;
1617                                 case 'h': // current health
1618                                         dpsnprintf(temp, sizeof(temp), "%i", cl.stats[STAT_HEALTH]);
1619                                         break;
1620                                 case 'a': // current armor
1621                                         dpsnprintf(temp, sizeof(temp), "%i", cl.stats[STAT_ARMOR]);
1622                                         break;
1623                                 case 'x': // current rockets
1624                                         dpsnprintf(temp, sizeof(temp), "%i", cl.stats[STAT_ROCKETS]);
1625                                         break;
1626                                 case 'c': // current cells
1627                                         dpsnprintf(temp, sizeof(temp), "%i", cl.stats[STAT_CELLS]);
1628                                         break;
1629                                 // silly proquake macros
1630                                 case 'd': // loc at last death
1631                                         CL_Locs_FindLocationName(temp, sizeof(temp), cl.lastdeathorigin);
1632                                         break;
1633                                 case 't': // current time
1634                                         dpsnprintf(temp, sizeof(temp), "%.0f:%.0f", floor(cl.time / 60), cl.time - floor(cl.time / 60) * 60);
1635                                         break;
1636                                 case 'r': // rocket launcher status ("I have RL", "I need rockets", "I need RL")
1637                                         if (!(cl.stats[STAT_ITEMS] & IT_ROCKET_LAUNCHER))
1638                                                 dpsnprintf(temp, sizeof(temp), "I need RL");
1639                                         else if (!cl.stats[STAT_ROCKETS])
1640                                                 dpsnprintf(temp, sizeof(temp), "I need rockets");
1641                                         else
1642                                                 dpsnprintf(temp, sizeof(temp), "I have RL");
1643                                         break;
1644                                 case 'p': // powerup status (outputs "quad" "pent" and "eyes" according to status)
1645                                         if (cl.stats[STAT_ITEMS] & IT_QUAD)
1646                                         {
1647                                                 if (temp[0])
1648                                                         strlcat(temp, " ", sizeof(temp));
1649                                                 strlcat(temp, "quad", sizeof(temp));
1650                                         }
1651                                         if (cl.stats[STAT_ITEMS] & IT_INVULNERABILITY)
1652                                         {
1653                                                 if (temp[0])
1654                                                         strlcat(temp, " ", sizeof(temp));
1655                                                 strlcat(temp, "pent", sizeof(temp));
1656                                         }
1657                                         if (cl.stats[STAT_ITEMS] & IT_INVISIBILITY)
1658                                         {
1659                                                 if (temp[0])
1660                                                         strlcat(temp, " ", sizeof(temp));
1661                                                 strlcat(temp, "eyes", sizeof(temp));
1662                                         }
1663                                         break;
1664                                 case 'w': // weapon status (outputs "SSG:NG:SNG:GL:RL:LG" with the text between : characters omitted if you lack the weapon)
1665                                         if (cl.stats[STAT_ITEMS] & IT_SUPER_SHOTGUN)
1666                                                 strlcat(temp, "SSG", sizeof(temp));
1667                                         strlcat(temp, ":", sizeof(temp));
1668                                         if (cl.stats[STAT_ITEMS] & IT_NAILGUN)
1669                                                 strlcat(temp, "NG", sizeof(temp));
1670                                         strlcat(temp, ":", sizeof(temp));
1671                                         if (cl.stats[STAT_ITEMS] & IT_SUPER_NAILGUN)
1672                                                 strlcat(temp, "SNG", sizeof(temp));
1673                                         strlcat(temp, ":", sizeof(temp));
1674                                         if (cl.stats[STAT_ITEMS] & IT_GRENADE_LAUNCHER)
1675                                                 strlcat(temp, "GL", sizeof(temp));
1676                                         strlcat(temp, ":", sizeof(temp));
1677                                         if (cl.stats[STAT_ITEMS] & IT_ROCKET_LAUNCHER)
1678                                                 strlcat(temp, "RL", sizeof(temp));
1679                                         strlcat(temp, ":", sizeof(temp));
1680                                         if (cl.stats[STAT_ITEMS] & IT_LIGHTNING)
1681                                                 strlcat(temp, "LG", sizeof(temp));
1682                                         break;
1683                                 default:
1684                                         // not a recognized macro, print it as-is...
1685                                         temp[0] = s[0];
1686                                         temp[1] = s[1];
1687                                         temp[2] = 0;
1688                                         break;
1689                                 }
1690                                 // write the resulting text
1691                                 SZ_Write(&cls.netcon->message, (unsigned char *)temp, strlen(temp));
1692                                 s += 2;
1693                                 continue;
1694                         }
1695                         MSG_WriteByte(&cls.netcon->message, *s);
1696                         s++;
1697                 }
1698                 MSG_WriteByte(&cls.netcon->message, 0);
1699         }
1700         else // any other command is passed on as-is
1701                 SZ_Write(&cls.netcon->message, (const unsigned char *)s, (int)strlen(s) + 1);
1702 }
1703
1704 /*
1705 ===================
1706 Cmd_ForwardToServer
1707
1708 Sends the entire command line over to the server
1709 ===================
1710 */
1711 void Cmd_ForwardToServer (void)
1712 {
1713         const char *s;
1714         if (!strcasecmp(Cmd_Argv(0), "cmd"))
1715         {
1716                 // we want to strip off "cmd", so just send the args
1717                 s = Cmd_Argc() > 1 ? Cmd_Args() : "";
1718         }
1719         else
1720         {
1721                 // we need to keep the command name, so send Cmd_Argv(0), a space and then Cmd_Args()
1722                 s = va("%s %s", Cmd_Argv(0), Cmd_Argc() > 1 ? Cmd_Args() : "");
1723         }
1724         // don't send an empty forward message if the user tries "cmd" by itself
1725         if (!s || !*s)
1726                 return;
1727         Cmd_ForwardStringToServer(s);
1728 }
1729
1730
1731 /*
1732 ================
1733 Cmd_CheckParm
1734
1735 Returns the position (1 to argc-1) in the command's argument list
1736 where the given parameter apears, or 0 if not present
1737 ================
1738 */
1739
1740 int Cmd_CheckParm (const char *parm)
1741 {
1742         int i;
1743
1744         if (!parm)
1745         {
1746                 Con_Printf ("Cmd_CheckParm: NULL");
1747                 return 0;
1748         }
1749
1750         for (i = 1; i < Cmd_Argc (); i++)
1751                 if (!strcasecmp (parm, Cmd_Argv (i)))
1752                         return i;
1753
1754         return 0;
1755 }
1756