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

   1 /*****************************************************************************/
   2 /*                                                                           */
   3 /*                                 segdefs.c                                 */
   4 /*                                                                           */
   5 /*              Segment definitions for the bin65 binary utils               */
   6 /*                                                                           */
   7 /*                                                                           */
   8 /*                                                                           */
   9 /* (C) 2002      Ullrich von Bassewitz                                       */
  10 /*               Wacholderweg 14                                             */
  11 /*               D-70597 Stuttgart                                           */
  12 /* EMail:        uz@musoftware.de                                            */
  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 "xmalloc.h"
  41 #include "segdefs.h"
  42
  43
  44
  45 /*****************************************************************************/
  46 /*                                   Code                                    */
  47 /*****************************************************************************/
  48
  49
  50
  51 SegDef* NewSegDef (const char* Name, unsigned Type)
  52 /* Create a new segment definition and return it */
  53 {
  54     /* Allocate memory */
  55     SegDef* D = xmalloc (sizeof (SegDef));
  56
  57     /* Initialize it */
  58     if (D) {
  59         D->Name = xstrdup (Name);
  60         D->Type = Type;
  61     }
  62
  63     /* Return the result */
  64     return D;
  65 }
  66
  67
  68
  69 void FreeSegDef (SegDef* D)
  70 /* Free a segment definition */
  71 {
  72     xfree (D->Name);
  73     xfree (D);
  74 }
  75
  76
  77
  78 SegDef* DupSegDef (const SegDef* Def)
  79 /* Duplicate a segment definition and return it */
  80 {
  81     return NewSegDef (Def->Name, Def->Type);
  82 }
  83
  84
  85
  86 int ValidSegName (const char* Name)
  87 /* Return true if the given segment name is valid, return false otherwise */
  88 {
  89     /* Must start with '_' or a letter */
  90     if ((*Name != '_' && !IsAlpha(*Name)) || strlen(Name) > 80) {
  91         return 0;
  92     }
  93
  94     /* Can have letters, digits or the underline */
  95     while (*++Name) {
  96         if (*Name != '_' && !IsAlNum(*Name)) {
  97             return 0;
  98         }
  99     }
 100
 101     /* Name is ok */
 102     return 1;
 103 }
 104
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