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First phase of REUSE compliance and header reformat

    1: /*
    2:  *   $Id: cmd_kvalue.c,v 1.3 2025/03/09 19:14:24 snw Exp $
    3:  *    Implementation of the KVALUE command
    4:  *
    5:  *  
    6:  *   Author: Serena Willis <snw@coherent-logic.com>
    7:  *    Copyright (C) 1998 MUG Deutschland
    8:  *    Copyright (C) 2023, 2025 Coherent Logic Development LLC
    9:  *
   10:  *
   11:  *   This file is part of FreeM.
   12:  *
   13:  *   FreeM is free software: you can redistribute it and/or modify
   14:  *   it under the terms of the GNU Affero Public License as published by
   15:  *   the Free Software Foundation, either version 3 of the License, or
   16:  *   (at your option) any later version.
   17:  *
   18:  *   FreeM is distributed in the hope that it will be useful,
   19:  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
   20:  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   21:  *   GNU Affero Public License for more details.
   22:  *
   23:  *   You should have received a copy of the GNU Affero Public License
   24:  *   along with FreeM.  If not, see <https://www.gnu.org/licenses/>.
   25:  *
   26:  *   $Log: cmd_kvalue.c,v $
   27:  *   Revision 1.3  2025/03/09 19:14:24  snw
   28:  *   First phase of REUSE compliance and header reformat
   29:  *
   30:  *
   31:  * SPDX-FileCopyrightText:  (C) 2025 Coherent Logic Development LLC
   32:  * SPDX-License-Identifier: AGPL-3.0-or-later
   33:  **/
   34: 
   35: #include <string.h>
   36: #include <stdlib.h>
   37: #include "mpsdef.h"
   38: #include "mcommand.h"
   39: #include "consttbl.h"
   40: 
   41: MRESULT cmd_kvalue(MACTION *ra)
   42: {
   43:     register char ch;
   44:     char vn[255];
   45:     
   46:     if ((rtn_dialect () != D_FREEM) &&
   47:         (rtn_dialect () != D_MDS)) {
   48:         return NOSTAND;
   49:     }
   50:     
   51:     /* argumentless: KVALUE nukleurrr winturr */
   52:     if (((ch = *codptr) == SP) || ch == EOL) {
   53:         write_m ("Argumentless KVALUE not yet implemented.\201");
   54:         *ra = RA_NEXTCMND;
   55:         return OK;
   56:     }
   57:     
   58:     
   59:     if (ch != '(') { /* inclusive KVALUE */
   60:         
   61:         for (;;) {
   62: 
   63:             expr (NAME);                            /* try to interpret an mname */
   64:             if (merr ()) return merr ();
   65:             
   66:             stcpy (vn, varnam);
   67:             
   68:             if (vn[0] != '^') {
   69:                 symtab (killone, vn, NULL);
   70:             }
   71:             else {
   72:                 if (vn[1] == '$') {
   73:                     ssvn (killone, vn, NULL);
   74:                 }
   75:                 else {
   76:                     global (killone, vn, NULL);
   77:                 }
   78:             }
   79:             
   80:             if (merr ()) return merr ();
   81:             
   82:             if ((ch = *(codptr + 1)) == EOL) {
   83:                 codptr++;
   84:                 break;
   85:             }
   86:             else if (ch == ',') {
   87:                 codptr += 2;
   88:             }
   89:             else {
   90:                 return CMMND;
   91:             }
   92:         } 
   93:         
   94:     }
   95:     else { /* exclusive KVALUE */
   96:         
   97:         write_m ("Exclusive KVALUE not yet implemented.\201");
   98:         
   99:         while ((ch = *(codptr++)) != SP && ch != EOL) ; /* skip to the end of the command */
  100:         
  101:     }
  102: 
  103:     *ra = RA_NEXTCMND;
  104:     return OK;
  105: }