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