git.sur5r.net Git - cc65/blob - src/common/segnames.c

   1 /*****************************************************************************/
   2 /*                                                                           */
   3 /*                                  segnames.h                               */
   4 /*                                                                           */
   5 /*                           Default segment names                           */
   6 /*                                                                           */
   7 /*                                                                           */
   8 /*                                                                           */
   9 /* (C) 2003      Ullrich von Bassewitz                                       */
  10 /*               Römerstrasse 52                                             */
  11 /*               D-70794 Filderstadt                                         */
  12 /* EMail:        uz@cc65.org                                                 */
  13 /*                                                                           */
  14 /*                                                                           */
  15 /* This software is provided 'as-is', without any expressed or implied       */
  16 /* warranty.  In no event will the authors be held liable for any damages    */
  17 /* arising from the use of this software.                                    */
  18 /*                                                                           */
  19 /* Permission is granted to anyone to use this software for any purpose,     */
  20 /* including commercial applications, and to alter it and redistribute it    */
  21 /* freely, subject to the following restrictions:                            */
  22 /*                                                                           */
  23 /* 1. The origin of this software must not be misrepresented; you must not   */
  24 /*    claim that you wrote the original software. If you use this software   */
  25 /*    in a product, an acknowledgment in the product documentation would be  */
  26 /*    appreciated but is not required.                                       */
  27 /* 2. Altered source versions must be plainly marked as such, and must not   */
  28 /*    be misrepresented as being the original software.                      */
  29 /* 3. This notice may not be removed or altered from any source              */
  30 /*    distribution.                                                          */
  31 /*                                                                           */
  32 /*****************************************************************************/
  33
  34
  35
  36 #include <string.h>
  37
  38 /* common */
  39 #include "chartype.h"
  40 #include "segnames.h"
  41
  42
  43
  44 /*****************************************************************************/
  45 /*                                   Code                                    */
  46 /*****************************************************************************/
  47
  48
  49
  50 int ValidSegName (const char* Name)
  51 /* Return true if the given segment name is valid, return false otherwise */
  52 {
  53     /* Must start with '_' or a letter */
  54     if ((*Name != '_' && !IsAlpha(*Name)) || strlen(Name) > 80) {
  55         return 0;
  56     }
  57
  58     /* Can have letters, digits or the underline */
  59     while (*++Name) {
  60         if (*Name != '_' && !IsAlNum(*Name)) {
  61             return 0;
  62         }
  63     }
  64
  65     /* Name is ok */
  66     return 1;
  67 }