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Annotation of freem/src/consttbl.c, revision 1.1

1.1     ! snw         1: /*
        !             2:  *                            *
        !             3:  *                           * *
        !             4:  *                          *   *
        !             5:  *                     ***************
        !             6:  *                      * *       * *
        !             7:  *                       *  MUMPS  *
        !             8:  *                      * *       * *
        !             9:  *                     ***************
        !            10:  *                          *   *
        !            11:  *                           * *
        !            12:  *                            *
        !            13:  *
        !            14:  *   consttbl.c
        !            15:  *    support for local constants
        !            16:  *
        !            17:  *  
        !            18:  *   Author: Serena Willis <jpw@coherent-logic.com>
        !            19:  *    Copyright (C) 1998 MUG Deutschland
        !            20:  *    Copyright (C) 2021 Coherent Logic Development LLC
        !            21:  *
        !            22:  *
        !            23:  *   This file is part of FreeM.
        !            24:  *
        !            25:  *   FreeM is free software: you can redistribute it and/or modify
        !            26:  *   it under the terms of the GNU Affero Public License as published by
        !            27:  *   the Free Software Foundation, either version 3 of the License, or
        !            28:  *   (at your option) any later version.
        !            29:  *
        !            30:  *   FreeM is distributed in the hope that it will be useful,
        !            31:  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
        !            32:  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
        !            33:  *   GNU Affero Public License for more details.
        !            34:  *
        !            35:  *   You should have received a copy of the GNU Affero Public License
        !            36:  *   along with FreeM.  If not, see <https://www.gnu.org/licenses/>.
        !            37:  *
        !            38:  **/
        !            39: 
        !            40: #include <stdlib.h>
        !            41: #include "mpsdef.h"
        !            42: #include "consttbl.h"
        !            43: 
        !            44: ll_constant *const_head;
        !            45: 
        !            46: short const_define(char *key, char *data)
        !            47: {
        !            48:     
        !            49:     ll_constant *t;    
        !            50:     
        !            51:     for (t = const_head; t != NULL; t = t->next) {
        !            52: 
        !            53:        if (stcmp (t->key, key) == 0) {
        !            54:            return 0;
        !            55:        }
        !            56: 
        !            57:     }
        !            58: 
        !            59:     t = (ll_constant *) malloc (sizeof (ll_constant));
        !            60:     NULLPTRCHK(t,"const_define");
        !            61: 
        !            62:     t->key = (char *) malloc (stlen (key) + 1);
        !            63:     NULLPTRCHK(t->key,"const_define");
        !            64: 
        !            65:     t->data = (char *) malloc (stlen (data) + 1);
        !            66:     NULLPTRCHK(t->data,"const_define");
        !            67:     
        !            68:     stcpy (t->key, key);
        !            69:     stcpy (t->data, data);
        !            70:     t->next = const_head;
        !            71:     const_head = t;
        !            72: 
        !            73:     return stlen(t->key);
        !            74: 
        !            75: }
        !            76: 
        !            77: short const_is_defined(char *key)
        !            78: {
        !            79:     ll_constant *t;
        !            80: 
        !            81:     for (t = const_head; t != NULL; t = t->next) if (stcmp (t->key, key) == 0) return 1;       
        !            82: 
        !            83:     return 0;
        !            84:        
        !            85: }
        !            86: 
        !            87: void const_restore(void)
        !            88: {
        !            89:     ll_constant *t;
        !            90: 
        !            91:     restoring_consts = TRUE;
        !            92:     
        !            93:     for (t = const_head; t != NULL; t = t->next) {
        !            94:         symtab (set_sym, t->key, t->data);        
        !            95:     }
        !            96: 
        !            97:     restoring_consts = FALSE;
        !            98:     
        !            99:     return;
        !           100: }