renamed COM_ParseTokenConsole to COM_ParseToken_Console
[divverent/darkplaces.git] / cmd.c
1 /*
2 Copyright (C) 1996-1997 Id Software, Inc.
3
4 This program is free software; you can redistribute it and/or
5 modify it under the terms of the GNU General Public License
6 as published by the Free Software Foundation; either version 2
7 of the License, or (at your option) any later version.
8
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
12
13 See the GNU General Public License for more details.
14
15 You should have received a copy of the GNU General Public License
16 along with this program; if not, write to the Free Software
17 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
18
19 */
20 // cmd.c -- Quake script command processing module
21
22 #include "quakedef.h"
23
24 #define MAX_ALIAS_NAME  32
25 // this is the largest script file that can be executed in one step
26 // LordHavoc: inreased this from 8192 to 32768
27 #define CMDBUFSIZE 32768
28 // maximum number of parameters to a command
29 #define MAX_ARGS 80
30 // maximum tokenizable commandline length (counting NUL terminations)
31 #define CMD_TOKENIZELENGTH (MAX_INPUTLINE + 80)
32
33 typedef struct cmdalias_s
34 {
35         struct cmdalias_s *next;
36         char name[MAX_ALIAS_NAME];
37         char *value;
38 } cmdalias_t;
39
40 static cmdalias_t *cmd_alias;
41
42 static qboolean cmd_wait;
43
44 static mempool_t *cmd_mempool;
45
46 static char cmd_tokenizebuffer[CMD_TOKENIZELENGTH];
47 static int cmd_tokenizebufferpos = 0;
48
49 //=============================================================================
50
51 /*
52 ============
53 Cmd_Wait_f
54
55 Causes execution of the remainder of the command buffer to be delayed until
56 next frame.  This allows commands like:
57 bind g "impulse 5 ; +attack ; wait ; -attack ; impulse 2"
58 ============
59 */
60 static void Cmd_Wait_f (void)
61 {
62         cmd_wait = true;
63 }
64
65 /*
66 =============================================================================
67
68                                                 COMMAND BUFFER
69
70 =============================================================================
71 */
72
73 static sizebuf_t        cmd_text;
74 static unsigned char            cmd_text_buf[CMDBUFSIZE];
75
76 /*
77 ============
78 Cbuf_AddText
79
80 Adds command text at the end of the buffer
81 ============
82 */
83 void Cbuf_AddText (const char *text)
84 {
85         int             l;
86
87         l = (int)strlen (text);
88
89         if (cmd_text.cursize + l >= cmd_text.maxsize)
90         {
91                 Con_Print("Cbuf_AddText: overflow\n");
92                 return;
93         }
94
95         SZ_Write (&cmd_text, (const unsigned char *)text, (int)strlen (text));
96 }
97
98
99 /*
100 ============
101 Cbuf_InsertText
102
103 Adds command text immediately after the current command
104 Adds a \n to the text
105 FIXME: actually change the command buffer to do less copying
106 ============
107 */
108 void Cbuf_InsertText (const char *text)
109 {
110         char    *temp;
111         int             templen;
112
113         // copy off any commands still remaining in the exec buffer
114         templen = cmd_text.cursize;
115         if (templen)
116         {
117                 temp = (char *)Mem_Alloc (tempmempool, templen);
118                 memcpy (temp, cmd_text.data, templen);
119                 SZ_Clear (&cmd_text);
120         }
121         else
122                 temp = NULL;
123
124         // add the entire text of the file
125         Cbuf_AddText (text);
126
127         // add the copied off data
128         if (temp != NULL)
129         {
130                 SZ_Write (&cmd_text, (const unsigned char *)temp, templen);
131                 Mem_Free (temp);
132         }
133 }
134
135 /*
136 ============
137 Cbuf_Execute
138 ============
139 */
140 static void Cmd_PreprocessString( const char *intext, char *outtext, unsigned maxoutlen, cmdalias_t *alias );
141 void Cbuf_Execute (void)
142 {
143         int i;
144         char *text;
145         char line[MAX_INPUTLINE];
146         char preprocessed[MAX_INPUTLINE];
147         int quotes;
148
149         // LordHavoc: making sure the tokenizebuffer doesn't get filled up by repeated crashes
150         cmd_tokenizebufferpos = 0;
151
152         while (cmd_text.cursize)
153         {
154 // find a \n or ; line break
155                 text = (char *)cmd_text.data;
156
157                 quotes = 0;
158                 for (i=0 ; i< cmd_text.cursize ; i++)
159                 {
160                         if (text[i] == '"')
161                                 quotes ^= 1;
162                         if ( !quotes &&  text[i] == ';')
163                                 break;  // don't break if inside a quoted string
164                         if (text[i] == '\r' || text[i] == '\n')
165                                 break;
166                 }
167
168                 memcpy (line, text, i);
169                 line[i] = 0;
170
171 // delete the text from the command buffer and move remaining commands down
172 // this is necessary because commands (exec, alias) can insert data at the
173 // beginning of the text buffer
174
175                 if (i == cmd_text.cursize)
176                         cmd_text.cursize = 0;
177                 else
178                 {
179                         i++;
180                         cmd_text.cursize -= i;
181                         memcpy (cmd_text.data, text+i, cmd_text.cursize);
182                 }
183
184 // execute the command line
185                 Cmd_PreprocessString( line, preprocessed, sizeof(preprocessed), NULL );
186                 Cmd_ExecuteString (preprocessed, src_command);
187
188                 if (cmd_wait)
189                 {       // skip out while text still remains in buffer, leaving it
190                         // for next frame
191                         cmd_wait = false;
192                         break;
193                 }
194         }
195 }
196
197 /*
198 ==============================================================================
199
200                                                 SCRIPT COMMANDS
201
202 ==============================================================================
203 */
204
205 /*
206 ===============
207 Cmd_StuffCmds_f
208
209 Adds command line parameters as script statements
210 Commands lead with a +, and continue until a - or another +
211 quake +prog jctest.qp +cmd amlev1
212 quake -nosound +cmd amlev1
213 ===============
214 */
215 qboolean host_stuffcmdsrun = false;
216 void Cmd_StuffCmds_f (void)
217 {
218         int             i, j, l;
219         // this is for all commandline options combined (and is bounds checked)
220         char    build[MAX_INPUTLINE];
221
222         if (Cmd_Argc () != 1)
223         {
224                 Con_Print("stuffcmds : execute command line parameters\n");
225                 return;
226         }
227
228         // no reason to run the commandline arguments twice
229         if (host_stuffcmdsrun)
230                 return;
231
232         host_stuffcmdsrun = true;
233         build[0] = 0;
234         l = 0;
235         for (i = 0;i < com_argc;i++)
236         {
237                 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)
238                 {
239                         j = 1;
240                         while (com_argv[i][j])
241                                 build[l++] = com_argv[i][j++];
242                         i++;
243                         for (;i < com_argc;i++)
244                         {
245                                 if (!com_argv[i])
246                                         continue;
247                                 if ((com_argv[i][0] == '+' || com_argv[i][0] == '-') && (com_argv[i][1] < '0' || com_argv[i][1] > '9'))
248                                         break;
249                                 if (l + strlen(com_argv[i]) + 4 > sizeof(build) - 1)
250                                         break;
251                                 build[l++] = ' ';
252                                 if (strchr(com_argv[i], ' '))
253                                         build[l++] = '\"';
254                                 for (j = 0;com_argv[i][j];j++)
255                                         build[l++] = com_argv[i][j];
256                                 if (strchr(com_argv[i], ' '))
257                                         build[l++] = '\"';
258                         }
259                         build[l++] = '\n';
260                         i--;
261                 }
262         }
263         // now terminate the combined string and prepend it to the command buffer
264         // we already reserved space for the terminator
265         build[l++] = 0;
266         Cbuf_InsertText (build);
267 }
268
269
270 /*
271 ===============
272 Cmd_Exec_f
273 ===============
274 */
275 static void Cmd_Exec_f (void)
276 {
277         char *f;
278
279         if (Cmd_Argc () != 2)
280         {
281                 Con_Print("exec <filename> : execute a script file\n");
282                 return;
283         }
284
285         f = (char *)FS_LoadFile (Cmd_Argv(1), tempmempool, false, NULL);
286         if (!f)
287         {
288                 Con_Printf("couldn't exec %s\n",Cmd_Argv(1));
289                 return;
290         }
291         Con_DPrintf("execing %s\n",Cmd_Argv(1));
292
293         // if executing default.cfg for the first time, lock the cvar defaults
294         // it may seem backwards to insert this text BEFORE the default.cfg
295         // but Cbuf_InsertText inserts before, so this actually ends up after it.
296         if (!strcmp(Cmd_Argv(1), "default.cfg"))
297                 Cbuf_InsertText("\ncvar_lockdefaults\n");
298
299         // insert newline after the text to make sure the last line is terminated (some text editors omit the trailing newline)
300         // (note: insertion order here is backwards from execution order, so this adds it after the text, by calling it before...)
301         Cbuf_InsertText ("\n");
302         Cbuf_InsertText (f);
303         Mem_Free(f);
304 }
305
306
307 /*
308 ===============
309 Cmd_Echo_f
310
311 Just prints the rest of the line to the console
312 ===============
313 */
314 static void Cmd_Echo_f (void)
315 {
316         int             i;
317
318         for (i=1 ; i<Cmd_Argc() ; i++)
319                 Con_Printf("%s ",Cmd_Argv(i));
320         Con_Print("\n");
321 }
322
323 // DRESK - 5/14/06
324 // Support Doom3-style Toggle Console Command
325 /*
326 ===============
327 Cmd_Toggle_f
328
329 Toggles a specified console variable amongst the values specified (default is 0 and 1)
330 ===============
331 */
332 static void Cmd_Toggle_f(void)
333 {
334         // Acquire Number of Arguments
335         int nNumArgs = Cmd_Argc();
336
337         if(nNumArgs == 1)
338                 // No Arguments Specified; Print Usage
339                 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");
340         else
341         { // Correct Arguments Specified
342                 // Acquire Potential CVar
343                 cvar_t* cvCVar = Cvar_FindVar( Cmd_Argv(1) );
344
345                 if(cvCVar != NULL)
346                 { // Valid CVar
347                         if(nNumArgs == 2)
348                         { // Default Usage
349                                 if(cvCVar->integer)
350                                         Cvar_SetValueQuick(cvCVar, 0);
351                                 else
352                                         Cvar_SetValueQuick(cvCVar, 1);
353                         }
354                         else
355                         if(nNumArgs == 3)
356                         { // 0 and Specified Usage
357                                 if(cvCVar->integer == atoi(Cmd_Argv(2) ) )
358                                         // CVar is Specified Value; // Reset to 0
359                                         Cvar_SetValueQuick(cvCVar, 0);
360                                 else
361                                 if(cvCVar->integer == 0)
362                                         // CVar is 0; Specify Value
363                                         Cvar_SetQuick(cvCVar, Cmd_Argv(2) );
364                                 else
365                                         // CVar does not match; Reset to 0
366                                         Cvar_SetValueQuick(cvCVar, 0);
367                         }
368                         else
369                         { // Variable Values Specified
370                                 int nCnt;
371                                 int bFound = 0;
372
373                                 for(nCnt = 2; nCnt < nNumArgs; nCnt++)
374                                 { // Cycle through Values
375                                         if( strcmp(cvCVar->string, Cmd_Argv(nCnt) ) == 0)
376                                         { // Current Value Located; Increment to Next
377                                                 if( (nCnt + 1) == nNumArgs)
378                                                         // Max Value Reached; Reset
379                                                         Cvar_SetQuick(cvCVar, Cmd_Argv(2) );
380                                                 else
381                                                         // Next Value
382                                                         Cvar_SetQuick(cvCVar, Cmd_Argv(nCnt + 1) );
383
384                                                 // End Loop
385                                                 nCnt = nNumArgs;
386                                                 // Assign Found
387                                                 bFound = 1;
388                                         }
389                                 }
390                                 if(!bFound)
391                                         // Value not Found; Reset to Original
392                                         Cvar_SetQuick(cvCVar, Cmd_Argv(2) );
393                         }
394
395                 }
396                 else
397                 { // Invalid CVar
398                         Con_Printf("ERROR : CVar '%s' not found\n", Cmd_Argv(2) );
399                 }
400         }
401 }
402
403 /*
404 ===============
405 Cmd_Alias_f
406
407 Creates a new command that executes a command string (possibly ; seperated)
408 ===============
409 */
410 static void Cmd_Alias_f (void)
411 {
412         cmdalias_t      *a;
413         char            cmd[MAX_INPUTLINE];
414         int                     i, c;
415         const char              *s;
416         size_t          alloclen;
417
418         if (Cmd_Argc() == 1)
419         {
420                 Con_Print("Current alias commands:\n");
421                 for (a = cmd_alias ; a ; a=a->next)
422                         Con_Printf("%s : %s\n", a->name, a->value);
423                 return;
424         }
425
426         s = Cmd_Argv(1);
427         if (strlen(s) >= MAX_ALIAS_NAME)
428         {
429                 Con_Print("Alias name is too long\n");
430                 return;
431         }
432
433         // if the alias already exists, reuse it
434         for (a = cmd_alias ; a ; a=a->next)
435         {
436                 if (!strcmp(s, a->name))
437                 {
438                         Z_Free (a->value);
439                         break;
440                 }
441         }
442
443         if (!a)
444         {
445                 cmdalias_t *prev, *current;
446
447                 a = (cmdalias_t *)Z_Malloc (sizeof(cmdalias_t));
448                 strlcpy (a->name, s, sizeof (a->name));
449                 // insert it at the right alphanumeric position
450                 for( prev = NULL, current = cmd_alias ; current && strcmp( current->name, a->name ) < 0 ; prev = current, current = current->next )
451                         ;
452                 if( prev ) {
453                         prev->next = a;
454                 } else {
455                         cmd_alias = a;
456                 }
457                 a->next = current;
458         }
459
460
461 // copy the rest of the command line
462         cmd[0] = 0;             // start out with a null string
463         c = Cmd_Argc();
464         for (i=2 ; i< c ; i++)
465         {
466                 strlcat (cmd, Cmd_Argv(i), sizeof (cmd));
467                 if (i != c)
468                         strlcat (cmd, " ", sizeof (cmd));
469         }
470         strlcat (cmd, "\n", sizeof (cmd));
471
472         alloclen = strlen (cmd) + 1;
473         a->value = (char *)Z_Malloc (alloclen);
474         memcpy (a->value, cmd, alloclen);
475 }
476
477 /*
478 =============================================================================
479
480                                         COMMAND EXECUTION
481
482 =============================================================================
483 */
484
485 typedef struct cmd_function_s
486 {
487         struct cmd_function_s *next;
488         const char *name;
489         const char *description;
490         xcommand_t consolefunction;
491         xcommand_t clientfunction;
492         qboolean csqcfunc;
493 } cmd_function_t;
494
495 static int cmd_argc;
496 static const char *cmd_argv[MAX_ARGS];
497 static const char *cmd_null_string = "";
498 static const char *cmd_args;
499 cmd_source_t cmd_source;
500
501
502 static cmd_function_t *cmd_functions;           // possible commands to execute
503
504 /*
505 Cmd_PreprocessString
506
507 Preprocesses strings and replaces $*, $param#, $cvar accordingly
508 */
509 static void Cmd_PreprocessString( const char *intext, char *outtext, unsigned maxoutlen, cmdalias_t *alias ) {
510         const char *in;
511         unsigned outlen;
512         int inquote;
513
514         // don't crash if there's no room in the outtext buffer
515         if( maxoutlen == 0 ) {
516                 return;
517         }
518         maxoutlen--; // because of \0
519
520         in = intext;
521         outlen = 0;
522         inquote = 0;
523
524         while( *in && outlen < maxoutlen ) {
525                 if( *in == '$' && !inquote ) {
526                         // this is some kind of expansion, see what comes after the $
527                         in++;
528                         // replacements that can always be used:
529                         // $$ is replaced with $, to allow escaping $
530                         // $<cvarname> is replaced with the contents of the cvar
531                         //
532                         // the following can be used in aliases only:
533                         // $* is replaced with all formal parameters (including name of the alias - this probably is not desirable)
534                         // $0 is replaced with the name of this alias
535                         // $<number> is replaced with an argument to this alias (or copied as-is if no such parameter exists), can be multiple digits
536                         if( *in == '$' ) {
537                                 outtext[outlen++] = *in++;
538                         } else if( *in == '*' && alias ) {
539                                 const char *linein = Cmd_Args();
540
541                                 // include all parameters
542                                 if (linein) {
543                                         while( *linein && outlen < maxoutlen ) {
544                                                 outtext[outlen++] = *linein++;
545                                         }
546                                 }
547
548                                 in++;
549                         } else if( '0' <= *in && *in <= '9' && alias ) {
550                                 char *nexttoken;
551                                 int argnum;
552
553                                 argnum = strtol( in, &nexttoken, 10 );
554
555                                 if( 0 <= argnum && argnum < Cmd_Argc() ) {
556                                         const char *param = Cmd_Argv( argnum );
557                                         while( *param && outlen < maxoutlen ) {
558                                                 outtext[outlen++] = *param++;
559                                         }
560                                         in = nexttoken;
561                                 } else if( argnum >= Cmd_Argc() ) {
562                                         Con_Printf( "Warning: Not enough parameters passed to alias '%s', at least %i expected:\n    %s\n", alias->name, argnum, alias->value );
563                                         outtext[outlen++] = '$';
564                                 }
565                         } else {
566                                 cvar_t *cvar;
567                                 const char *tempin = in;
568
569                                 COM_ParseToken_Console( &tempin );
570                                 // don't expand rcon_password or similar cvars (CVAR_PRIVATE flag)
571                                 if ((cvar = Cvar_FindVar(&com_token[0])) && !(cvar->flags & CVAR_PRIVATE)) {
572                                         const char *cvarcontent = cvar->string;
573                                         while( *cvarcontent && outlen < maxoutlen ) {
574                                                 outtext[outlen++] = *cvarcontent++;
575                                         }
576                                         in = tempin;
577                                 } else {
578                                         if( alias ) {
579                                                 Con_Printf( "Warning: could not find cvar %s when expanding alias %s\n    %s\n", com_token, alias->name, alias->value );
580                                         } else {
581                                                 Con_Printf( "Warning: could not find cvar %s\n", com_token );
582                                         }
583                                         outtext[outlen++] = '$';
584                                 }
585                         }
586                 } else {
587                         if( *in == '"' ) {
588                                 inquote ^= 1;
589                         }
590                         outtext[outlen++] = *in++;
591                 }
592         }
593         outtext[outlen] = 0;
594 }
595
596 /*
597 ============
598 Cmd_ExecuteAlias
599
600 Called for aliases and fills in the alias into the cbuffer
601 ============
602 */
603 static void Cmd_ExecuteAlias (cmdalias_t *alias)
604 {
605         static char buffer[ MAX_INPUTLINE + 2 ];
606         Cmd_PreprocessString( alias->value, buffer, sizeof(buffer) - 2, alias );
607         // insert at start of command buffer, so that aliases execute in order
608         // (fixes bug introduced by Black on 20050705)
609         Cbuf_InsertText( buffer );
610 }
611
612 /*
613 ========
614 Cmd_List
615
616         CmdList Added by EvilTypeGuy eviltypeguy@qeradiant.com
617         Thanks to Matthias "Maddes" Buecher, http://www.inside3d.com/qip/
618
619 ========
620 */
621 static void Cmd_List_f (void)
622 {
623         cmd_function_t *cmd;
624         const char *partial;
625         int len, count;
626
627         if (Cmd_Argc() > 1)
628         {
629                 partial = Cmd_Argv (1);
630                 len = (int)strlen(partial);
631         }
632         else
633         {
634                 partial = NULL;
635                 len = 0;
636         }
637
638         count = 0;
639         for (cmd = cmd_functions; cmd; cmd = cmd->next)
640         {
641                 if (partial && strncmp(partial, cmd->name, len))
642                         continue;
643                 Con_Printf("%s : %s\n", cmd->name, cmd->description);
644                 count++;
645         }
646
647         if (partial)
648                 Con_Printf("%i Command%s beginning with \"%s\"\n\n", count, (count > 1) ? "s" : "", partial);
649         else
650                 Con_Printf("%i Command%s\n\n", count, (count > 1) ? "s" : "");
651 }
652
653 /*
654 ============
655 Cmd_Init
656 ============
657 */
658 void Cmd_Init (void)
659 {
660         cmd_mempool = Mem_AllocPool("commands", 0, NULL);
661         // space for commands and script files
662         cmd_text.data = cmd_text_buf;
663         cmd_text.maxsize = sizeof(cmd_text_buf);
664         cmd_text.cursize = 0;
665 }
666
667 void Cmd_Init_Commands (void)
668 {
669 //
670 // register our commands
671 //
672         Cmd_AddCommand ("stuffcmds",Cmd_StuffCmds_f, "execute commandline parameters (must be present in quake.rc script)");
673         Cmd_AddCommand ("exec",Cmd_Exec_f, "execute a script file");
674         Cmd_AddCommand ("echo",Cmd_Echo_f, "print a message to the console (useful in scripts)");
675         Cmd_AddCommand ("alias",Cmd_Alias_f, "create a script function (parameters are passed in as $1 through $9, and $* for all parameters)");
676         Cmd_AddCommand ("cmd", Cmd_ForwardToServer, "send a console commandline to the server (used by some mods)");
677         Cmd_AddCommand ("wait", Cmd_Wait_f, "make script execution wait for next rendered frame");
678         Cmd_AddCommand ("set", Cvar_Set_f, "create or change the value of a console variable");
679         Cmd_AddCommand ("seta", Cvar_SetA_f, "create or change the value of a console variable that will be saved to config.cfg");
680
681         // 2000-01-09 CmdList, CvarList commands By Matthias "Maddes" Buecher
682         // Added/Modified by EvilTypeGuy eviltypeguy@qeradiant.com
683         Cmd_AddCommand ("cmdlist", Cmd_List_f, "lists all console commands beginning with the specified prefix");
684         Cmd_AddCommand ("cvarlist", Cvar_List_f, "lists all console variables beginning with the specified prefix");
685
686         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");
687         Cmd_AddCommand ("cvar_resettodefaults_all", Cvar_ResetToDefaults_All_f, "sets all cvars to their locked default values");
688         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)");
689         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)");
690
691         // DRESK - 5/14/06
692         // Support Doom3-style Toggle Command
693         Cmd_AddCommand( "toggle", Cmd_Toggle_f, "toggles a console variable's values (use for more info)");
694 }
695
696 /*
697 ============
698 Cmd_Shutdown
699 ============
700 */
701 void Cmd_Shutdown(void)
702 {
703         Mem_FreePool(&cmd_mempool);
704 }
705
706 /*
707 ============
708 Cmd_Argc
709 ============
710 */
711 int             Cmd_Argc (void)
712 {
713         return cmd_argc;
714 }
715
716 /*
717 ============
718 Cmd_Argv
719 ============
720 */
721 const char *Cmd_Argv (int arg)
722 {
723         if (arg >= cmd_argc )
724                 return cmd_null_string;
725         return cmd_argv[arg];
726 }
727
728 /*
729 ============
730 Cmd_Args
731 ============
732 */
733 const char *Cmd_Args (void)
734 {
735         return cmd_args;
736 }
737
738
739 /*
740 ============
741 Cmd_TokenizeString
742
743 Parses the given string into command line tokens.
744 ============
745 */
746 // AK: This function should only be called from ExcuteString because the current design is a bit of an hack
747 static void Cmd_TokenizeString (const char *text)
748 {
749         int l;
750
751         cmd_argc = 0;
752         cmd_args = NULL;
753
754         while (1)
755         {
756                 // skip whitespace up to a /n
757                 while (*text && *text <= ' ' && *text != '\r' && *text != '\n')
758                         text++;
759
760                 // line endings:
761                 // UNIX: \n
762                 // Mac: \r
763                 // Windows: \r\n
764                 if (*text == '\n' || *text == '\r')
765                 {
766                         // a newline separates commands in the buffer
767                         if (*text == '\r' && text[1] == '\n')
768                                 text++;
769                         text++;
770                         break;
771                 }
772
773                 if (!*text)
774                         return;
775
776                 if (cmd_argc == 1)
777                         cmd_args = text;
778
779                 if (!COM_ParseToken_Console(&text))
780                         return;
781
782                 if (cmd_argc < MAX_ARGS)
783                 {
784                         l = (int)strlen(com_token) + 1;
785                         if (cmd_tokenizebufferpos + l > CMD_TOKENIZELENGTH)
786                         {
787                                 Con_Printf("Cmd_TokenizeString: ran out of %i character buffer space for command arguements\n", CMD_TOKENIZELENGTH);
788                                 break;
789                         }
790                         memcpy (cmd_tokenizebuffer + cmd_tokenizebufferpos, com_token, l);
791                         cmd_argv[cmd_argc] = cmd_tokenizebuffer + cmd_tokenizebufferpos;
792                         cmd_tokenizebufferpos += l;
793                         cmd_argc++;
794                 }
795         }
796 }
797
798
799 /*
800 ============
801 Cmd_AddCommand
802 ============
803 */
804 void Cmd_AddCommand_WithClientCommand (const char *cmd_name, xcommand_t consolefunction, xcommand_t clientfunction, const char *description)
805 {
806         cmd_function_t *cmd;
807         cmd_function_t *prev, *current;
808
809 // fail if the command is a variable name
810         if (Cvar_FindVar( cmd_name ))
811         {
812                 Con_Printf("Cmd_AddCommand: %s already defined as a var\n", cmd_name);
813                 return;
814         }
815
816 // fail if the command already exists
817         for (cmd=cmd_functions ; cmd ; cmd=cmd->next)
818         {
819                 if (!strcmp (cmd_name, cmd->name))
820                 {
821                         if (consolefunction || clientfunction)
822                         {
823                                 Con_Printf("Cmd_AddCommand: %s already defined\n", cmd_name);
824                                 return;
825                         }
826                         else    //[515]: csqc
827                         {
828                                 cmd->csqcfunc = true;
829                                 return;
830                         }
831                 }
832         }
833
834         cmd = (cmd_function_t *)Mem_Alloc(cmd_mempool, sizeof(cmd_function_t));
835         cmd->name = cmd_name;
836         cmd->consolefunction = consolefunction;
837         cmd->clientfunction = clientfunction;
838         cmd->description = description;
839         if(!consolefunction && !clientfunction)                 //[515]: csqc
840                 cmd->csqcfunc = true;
841         cmd->next = cmd_functions;
842
843 // insert it at the right alphanumeric position
844         for( prev = NULL, current = cmd_functions ; current && strcmp( current->name, cmd->name ) < 0 ; prev = current, current = current->next )
845                 ;
846         if( prev ) {
847                 prev->next = cmd;
848         } else {
849                 cmd_functions = cmd;
850         }
851         cmd->next = current;
852 }
853
854 void Cmd_AddCommand (const char *cmd_name, xcommand_t function, const char *description)
855 {
856         Cmd_AddCommand_WithClientCommand (cmd_name, function, NULL, description);
857 }
858
859 /*
860 ============
861 Cmd_Exists
862 ============
863 */
864 qboolean Cmd_Exists (const char *cmd_name)
865 {
866         cmd_function_t  *cmd;
867
868         for (cmd=cmd_functions ; cmd ; cmd=cmd->next)
869                 if (!strcmp (cmd_name,cmd->name))
870                         return true;
871
872         return false;
873 }
874
875
876 /*
877 ============
878 Cmd_CompleteCommand
879 ============
880 */
881 const char *Cmd_CompleteCommand (const char *partial)
882 {
883         cmd_function_t *cmd;
884         size_t len;
885
886         len = strlen(partial);
887
888         if (!len)
889                 return NULL;
890
891 // check functions
892         for (cmd = cmd_functions; cmd; cmd = cmd->next)
893                 if (!strncasecmp(partial, cmd->name, len))
894                         return cmd->name;
895
896         return NULL;
897 }
898
899 /*
900         Cmd_CompleteCountPossible
901
902         New function for tab-completion system
903         Added by EvilTypeGuy
904         Thanks to Fett erich@heintz.com
905         Thanks to taniwha
906
907 */
908 int Cmd_CompleteCountPossible (const char *partial)
909 {
910         cmd_function_t *cmd;
911         size_t len;
912         int h;
913
914         h = 0;
915         len = strlen(partial);
916
917         if (!len)
918                 return 0;
919
920         // Loop through the command list and count all partial matches
921         for (cmd = cmd_functions; cmd; cmd = cmd->next)
922                 if (!strncasecmp(partial, cmd->name, len))
923                         h++;
924
925         return h;
926 }
927
928 /*
929         Cmd_CompleteBuildList
930
931         New function for tab-completion system
932         Added by EvilTypeGuy
933         Thanks to Fett erich@heintz.com
934         Thanks to taniwha
935
936 */
937 const char **Cmd_CompleteBuildList (const char *partial)
938 {
939         cmd_function_t *cmd;
940         size_t len = 0;
941         size_t bpos = 0;
942         size_t sizeofbuf = (Cmd_CompleteCountPossible (partial) + 1) * sizeof (const char *);
943         const char **buf;
944
945         len = strlen(partial);
946         buf = (const char **)Mem_Alloc(tempmempool, sizeofbuf + sizeof (const char *));
947         // Loop through the alias list and print all matches
948         for (cmd = cmd_functions; cmd; cmd = cmd->next)
949                 if (!strncasecmp(partial, cmd->name, len))
950                         buf[bpos++] = cmd->name;
951
952         buf[bpos] = NULL;
953         return buf;
954 }
955
956 // written by LordHavoc
957 void Cmd_CompleteCommandPrint (const char *partial)
958 {
959         cmd_function_t *cmd;
960         size_t len = strlen(partial);
961         // Loop through the command list and print all matches
962         for (cmd = cmd_functions; cmd; cmd = cmd->next)
963                 if (!strncasecmp(partial, cmd->name, len))
964                         Con_Printf("%s : %s\n", cmd->name, cmd->description);
965 }
966
967 /*
968         Cmd_CompleteAlias
969
970         New function for tab-completion system
971         Added by EvilTypeGuy
972         Thanks to Fett erich@heintz.com
973         Thanks to taniwha
974
975 */
976 const char *Cmd_CompleteAlias (const char *partial)
977 {
978         cmdalias_t *alias;
979         size_t len;
980
981         len = strlen(partial);
982
983         if (!len)
984                 return NULL;
985
986         // Check functions
987         for (alias = cmd_alias; alias; alias = alias->next)
988                 if (!strncasecmp(partial, alias->name, len))
989                         return alias->name;
990
991         return NULL;
992 }
993
994 // written by LordHavoc
995 void Cmd_CompleteAliasPrint (const char *partial)
996 {
997         cmdalias_t *alias;
998         size_t len = strlen(partial);
999         // Loop through the alias list and print all matches
1000         for (alias = cmd_alias; alias; alias = alias->next)
1001                 if (!strncasecmp(partial, alias->name, len))
1002                         Con_Printf("%s : %s\n", alias->name, alias->value);
1003 }
1004
1005
1006 /*
1007         Cmd_CompleteAliasCountPossible
1008
1009         New function for tab-completion system
1010         Added by EvilTypeGuy
1011         Thanks to Fett erich@heintz.com
1012         Thanks to taniwha
1013
1014 */
1015 int Cmd_CompleteAliasCountPossible (const char *partial)
1016 {
1017         cmdalias_t      *alias;
1018         size_t          len;
1019         int                     h;
1020
1021         h = 0;
1022
1023         len = strlen(partial);
1024
1025         if (!len)
1026                 return 0;
1027
1028         // Loop through the command list and count all partial matches
1029         for (alias = cmd_alias; alias; alias = alias->next)
1030                 if (!strncasecmp(partial, alias->name, len))
1031                         h++;
1032
1033         return h;
1034 }
1035
1036 /*
1037         Cmd_CompleteAliasBuildList
1038
1039         New function for tab-completion system
1040         Added by EvilTypeGuy
1041         Thanks to Fett erich@heintz.com
1042         Thanks to taniwha
1043
1044 */
1045 const char **Cmd_CompleteAliasBuildList (const char *partial)
1046 {
1047         cmdalias_t *alias;
1048         size_t len = 0;
1049         size_t bpos = 0;
1050         size_t sizeofbuf = (Cmd_CompleteAliasCountPossible (partial) + 1) * sizeof (const char *);
1051         const char **buf;
1052
1053         len = strlen(partial);
1054         buf = (const char **)Mem_Alloc(tempmempool, sizeofbuf + sizeof (const char *));
1055         // Loop through the alias list and print all matches
1056         for (alias = cmd_alias; alias; alias = alias->next)
1057                 if (!strncasecmp(partial, alias->name, len))
1058                         buf[bpos++] = alias->name;
1059
1060         buf[bpos] = NULL;
1061         return buf;
1062 }
1063
1064 void Cmd_ClearCsqcFuncs (void)
1065 {
1066         cmd_function_t *cmd;
1067         for (cmd=cmd_functions ; cmd ; cmd=cmd->next)
1068                 cmd->csqcfunc = false;
1069 }
1070
1071 qboolean CL_VM_ConsoleCommand (const char *cmd);
1072 /*
1073 ============
1074 Cmd_ExecuteString
1075
1076 A complete command line has been parsed, so try to execute it
1077 FIXME: lookupnoadd the token to speed search?
1078 ============
1079 */
1080 void Cmd_ExecuteString (const char *text, cmd_source_t src)
1081 {
1082         int oldpos;
1083         cmd_function_t *cmd;
1084         cmdalias_t *a;
1085
1086         oldpos = cmd_tokenizebufferpos;
1087         cmd_source = src;
1088
1089         Cmd_TokenizeString (text);
1090
1091 // execute the command line
1092         if (!Cmd_Argc())
1093         {
1094                 cmd_tokenizebufferpos = oldpos;
1095                 return;         // no tokens
1096         }
1097
1098 // check functions
1099         for (cmd=cmd_functions ; cmd ; cmd=cmd->next)
1100         {
1101                 if (!strcasecmp (cmd_argv[0],cmd->name))
1102                 {
1103                         if (cmd->csqcfunc && CL_VM_ConsoleCommand (text))       //[515]: csqc
1104                                 return;
1105                         switch (src)
1106                         {
1107                         case src_command:
1108                                 if (cmd->consolefunction)
1109                                         cmd->consolefunction ();
1110                                 else if (cmd->clientfunction)
1111                                 {
1112                                         if (cls.state == ca_connected)
1113                                         {
1114                                                 // forward remote commands to the server for execution
1115                                                 Cmd_ForwardToServer();
1116                                         }
1117                                         else
1118                                                 Con_Printf("Can not send command \"%s\", not connected.\n", Cmd_Argv(0));
1119                                 }
1120                                 else
1121                                         Con_Printf("Command \"%s\" can not be executed\n", Cmd_Argv(0));
1122                                 cmd_tokenizebufferpos = oldpos;
1123                                 return;
1124                         case src_client:
1125                                 if (cmd->clientfunction)
1126                                 {
1127                                         cmd->clientfunction ();
1128                                         cmd_tokenizebufferpos = oldpos;
1129                                         return;
1130                                 }
1131                                 break;
1132                         }
1133                         break;
1134                 }
1135         }
1136
1137         // if it's a client command and no command was found, say so.
1138         if (cmd_source == src_client)
1139         {
1140                 Con_Printf("player \"%s\" tried to %s\n", host_client->name, text);
1141                 return;
1142         }
1143
1144 // check alias
1145         for (a=cmd_alias ; a ; a=a->next)
1146         {
1147                 if (!strcasecmp (cmd_argv[0], a->name))
1148                 {
1149                         Cmd_ExecuteAlias(a);
1150                         cmd_tokenizebufferpos = oldpos;
1151                         return;
1152                 }
1153         }
1154
1155 // check cvars
1156         if (!Cvar_Command () && host_framecount > 0)
1157                 Con_Printf("Unknown command \"%s\"\n", Cmd_Argv(0));
1158
1159         cmd_tokenizebufferpos = oldpos;
1160 }
1161
1162
1163 /*
1164 ===================
1165 Cmd_ForwardStringToServer
1166
1167 Sends an entire command string over to the server, unprocessed
1168 ===================
1169 */
1170 void Cmd_ForwardStringToServer (const char *s)
1171 {
1172         char temp[128];
1173         if (cls.state != ca_connected)
1174         {
1175                 Con_Printf("Can't \"%s\", not connected\n", s);
1176                 return;
1177         }
1178
1179         if (!cls.netcon)
1180                 return;
1181
1182         // LordHavoc: thanks to Fuh for bringing the pure evil of SZ_Print to my
1183         // attention, it has been eradicated from here, its only (former) use in
1184         // all of darkplaces.
1185         if (cls.protocol == PROTOCOL_QUAKEWORLD)
1186                 MSG_WriteByte(&cls.netcon->message, qw_clc_stringcmd);
1187         else
1188                 MSG_WriteByte(&cls.netcon->message, clc_stringcmd);
1189         if ((!strncmp(s, "say ", 4) || !strncmp(s, "say_team ", 9)) && cl_locs_enable.integer)
1190         {
1191                 // say/say_team commands can replace % character codes with status info
1192                 while (*s)
1193                 {
1194                         if (*s == '%' && s[1])
1195                         {
1196                                 // handle proquake message macros
1197                                 temp[0] = 0;
1198                                 switch (s[1])
1199                                 {
1200                                 case 'l': // current location
1201                                         CL_Locs_FindLocationName(temp, sizeof(temp), cl.movement_origin);
1202                                         break;
1203                                 case 'h': // current health
1204                                         dpsnprintf(temp, sizeof(temp), "%i", cl.stats[STAT_HEALTH]);
1205                                         break;
1206                                 case 'a': // current armor
1207                                         dpsnprintf(temp, sizeof(temp), "%i", cl.stats[STAT_ARMOR]);
1208                                         break;
1209                                 case 'x': // current rockets
1210                                         dpsnprintf(temp, sizeof(temp), "%i", cl.stats[STAT_ROCKETS]);
1211                                         break;
1212                                 case 'c': // current cells
1213                                         dpsnprintf(temp, sizeof(temp), "%i", cl.stats[STAT_CELLS]);
1214                                         break;
1215                                 // silly proquake macros
1216                                 case 'd': // loc at last death
1217                                         CL_Locs_FindLocationName(temp, sizeof(temp), cl.lastdeathorigin);
1218                                         break;
1219                                 case 't': // current time
1220                                         dpsnprintf(temp, sizeof(temp), "%.0f:%.0f", floor(cl.time / 60), cl.time - floor(cl.time / 60) * 60);
1221                                         break;
1222                                 case 'r': // rocket launcher status ("I have RL", "I need rockets", "I need RL")
1223                                         if (!(cl.stats[STAT_ITEMS] & IT_ROCKET_LAUNCHER))
1224                                                 dpsnprintf(temp, sizeof(temp), "I need RL");
1225                                         else if (!cl.stats[STAT_ROCKETS])
1226                                                 dpsnprintf(temp, sizeof(temp), "I need rockets");
1227                                         else
1228                                                 dpsnprintf(temp, sizeof(temp), "I have RL");
1229                                         break;
1230                                 case 'p': // powerup status (outputs "quad" "pent" and "eyes" according to status)
1231                                         if (cl.stats[STAT_ITEMS] & IT_QUAD)
1232                                         {
1233                                                 if (temp[0])
1234                                                         strlcat(temp, " ", sizeof(temp));
1235                                                 strlcat(temp, "quad", sizeof(temp));
1236                                         }
1237                                         if (cl.stats[STAT_ITEMS] & IT_INVULNERABILITY)
1238                                         {
1239                                                 if (temp[0])
1240                                                         strlcat(temp, " ", sizeof(temp));
1241                                                 strlcat(temp, "pent", sizeof(temp));
1242                                         }
1243                                         if (cl.stats[STAT_ITEMS] & IT_INVISIBILITY)
1244                                         {
1245                                                 if (temp[0])
1246                                                         strlcat(temp, " ", sizeof(temp));
1247                                                 strlcat(temp, "eyes", sizeof(temp));
1248                                         }
1249                                         break;
1250                                 case 'w': // weapon status (outputs "SSG:NG:SNG:GL:RL:LG" with the text between : characters omitted if you lack the weapon)
1251                                         if (cl.stats[STAT_ITEMS] & IT_SUPER_SHOTGUN)
1252                                                 strlcat(temp, "SSG", sizeof(temp));
1253                                         strlcat(temp, ":", sizeof(temp));
1254                                         if (cl.stats[STAT_ITEMS] & IT_NAILGUN)
1255                                                 strlcat(temp, "NG", sizeof(temp));
1256                                         strlcat(temp, ":", sizeof(temp));
1257                                         if (cl.stats[STAT_ITEMS] & IT_SUPER_NAILGUN)
1258                                                 strlcat(temp, "SNG", sizeof(temp));
1259                                         strlcat(temp, ":", sizeof(temp));
1260                                         if (cl.stats[STAT_ITEMS] & IT_GRENADE_LAUNCHER)
1261                                                 strlcat(temp, "GL", sizeof(temp));
1262                                         strlcat(temp, ":", sizeof(temp));
1263                                         if (cl.stats[STAT_ITEMS] & IT_ROCKET_LAUNCHER)
1264                                                 strlcat(temp, "RL", sizeof(temp));
1265                                         strlcat(temp, ":", sizeof(temp));
1266                                         if (cl.stats[STAT_ITEMS] & IT_LIGHTNING)
1267                                                 strlcat(temp, "LG", sizeof(temp));
1268                                         break;
1269                                 default:
1270                                         // not a recognized macro, print it as-is...
1271                                         temp[0] = s[0];
1272                                         temp[1] = s[1];
1273                                         temp[2] = 0;
1274                                         break;
1275                                 }
1276                                 // write the resulting text
1277                                 SZ_Write(&cls.netcon->message, (unsigned char *)temp, strlen(temp));
1278                                 s += 2;
1279                                 continue;
1280                         }
1281                         MSG_WriteByte(&cls.netcon->message, *s);
1282                         s++;
1283                 }
1284                 MSG_WriteByte(&cls.netcon->message, 0);
1285         }
1286         else // any other command is passed on as-is
1287                 SZ_Write(&cls.netcon->message, (const unsigned char *)s, (int)strlen(s) + 1);
1288 }
1289
1290 /*
1291 ===================
1292 Cmd_ForwardToServer
1293
1294 Sends the entire command line over to the server
1295 ===================
1296 */
1297 void Cmd_ForwardToServer (void)
1298 {
1299         const char *s;
1300         if (!strcasecmp(Cmd_Argv(0), "cmd"))
1301         {
1302                 // we want to strip off "cmd", so just send the args
1303                 s = Cmd_Argc() > 1 ? Cmd_Args() : "";
1304         }
1305         else
1306         {
1307                 // we need to keep the command name, so send Cmd_Argv(0), a space and then Cmd_Args()
1308                 s = va("%s %s", Cmd_Argv(0), Cmd_Argc() > 1 ? Cmd_Args() : "");
1309         }
1310         // don't send an empty forward message if the user tries "cmd" by itself
1311         if (!s || !*s)
1312                 return;
1313         Cmd_ForwardStringToServer(s);
1314 }
1315
1316
1317 /*
1318 ================
1319 Cmd_CheckParm
1320
1321 Returns the position (1 to argc-1) in the command's argument list
1322 where the given parameter apears, or 0 if not present
1323 ================
1324 */
1325
1326 int Cmd_CheckParm (const char *parm)
1327 {
1328         int i;
1329
1330         if (!parm)
1331         {
1332                 Con_Printf ("Cmd_CheckParm: NULL");
1333                 return 0;
1334         }
1335
1336         for (i = 1; i < Cmd_Argc (); i++)
1337                 if (!strcasecmp (parm, Cmd_Argv (i)))
1338                         return i;
1339
1340         return 0;
1341 }
1342