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First phase of REUSE compliance and header reformat

    1: /*
    2:  *   $Id: cmd_ksubscripts.c,v 1.3 2025/03/09 19:14:24 snw Exp $
    3:  *    Implementation of the KSUBSCRIPTS command
    4:  *
    5:  *  
    6:  *   Author: Serena Willis <snw@coherent-logic.com>
    7:  *    Copyright (C) 1998 MUG Deutschland
    8:  *    Copyright (C) 2023 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_ksubscripts.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_ksubscripts(MACTION *ra)
   42: {
   43:     register char ch;
   44:     char vn[255];   
   45:     char *old_value;
   46:     
   47:     if ((rtn_dialect () != D_FREEM) &&
   48:         (rtn_dialect () != D_MDS)) {
   49:         return NOSTAND;
   50:     }
   51:     
   52:     if ((old_value = (char *) malloc (STRLEN * sizeof (char))) == NULL) {
   53:         return MEMOV;
   54:     }
   55:     
   56:     /* argumentless: KSUBSCRIPTS nukleurrr winturr */
   57:     if (((ch = *codptr) == SP) || ch == EOL) {
   58:         write_m ("Argumentless KSUBSCRIPTS not yet implemented.\201");
   59:         
   60:         free (old_value);
   61:         
   62:         *ra = RA_NEXTCMND;
   63:         return OK;
   64:     }
   65:     
   66:     
   67:     if (ch != '(') { /* inclusive KSUBSCRIPTS */
   68:         
   69:         for (;;) {
   70:             expr (NAME);                            /* try to interpret an mname */
   71:             
   72:             if (merr ()) return merr ();
   73:             
   74:             stcpy (vn, varnam);
   75:             
   76:             if (vn[0] != '^') {
   77:                 symtab (get_sym, vn, old_value);
   78:                 symtab (kill_sym, vn, NULL);
   79:                 symtab (set_sym, vn, old_value);
   80:             }
   81:             else {
   82:                 if (vn[1] == '$') {
   83:                     ssvn (get_sym, vn, old_value);
   84:                     ssvn (kill_sym, vn, NULL);
   85:                     ssvn (set_sym, vn, old_value);
   86:                 }
   87:                 else {
   88:                     global (get_sym, vn, old_value);
   89:                     global (kill_sym, vn, NULL);
   90:                     global (set_sym, vn, old_value);
   91:                 }
   92:             }
   93:             
   94:             free (old_value);
   95:             
   96:             if (merr ()) return merr ();
   97:             
   98:             if ((ch = *(codptr + 1)) == EOL) {
   99:                 codptr++;
  100:                 break;
  101:             }
  102:             else if (ch == ',') {
  103:                 codptr += 2;
  104:             }
  105:             else {
  106:                 return CMMND;
  107:             }
  108:         } 
  109:         
  110:     }
  111:     else { /* exclusive KSUBSCRIPTS */
  112:         
  113:         write_m ("Exclusive KSUBSCRIPTS not yet implemented.\201");
  114:         
  115:         while ((ch = *(codptr++)) != SP && ch != EOL) ; /* skip to the end of the command */
  116:         
  117:     }
  118:     
  119:     *ra = RA_NEXTCMND;
  120:     return OK;
  121:                 
  122: }