git.sur5r.net Git - cc65/blob - src/cc65/segname.c

   1 /*****************************************************************************/
   2 /*                                                                           */
   3 /*                                 segname.c                                 */
   4 /*                                                                           */
   5 /*                          Segment name management                          */
   6 /*                                                                           */
   7 /*                                                                           */
   8 /*                                                                           */
   9 /* (C) 2000      Ullrich von Bassewitz                                       */
  10 /*               Wacholderweg 14                                             */
  11 /*               D-70597 Stuttgart                                           */
  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 "check.h"
  41 #include "xmalloc.h"
  42
  43 /* cc65 */
  44 #include "segname.h"
  45
  46
  47
  48 /*****************************************************************************/
  49 /*                                   Data                                    */
  50 /*****************************************************************************/
  51
  52
  53
  54 /* Actual names for the segments */
  55 char* SegmentNames[SEG_COUNT];
  56
  57
  58
  59 /*****************************************************************************/
  60 /*                                   Code                                    */
  61 /*****************************************************************************/
  62
  63
  64
  65 void InitSegNames (void)
  66 /* Initialize the segment names */
  67 {
  68     SegmentNames [SEG_BSS]      = xstrdup ("BSS");
  69     SegmentNames [SEG_CODE]     = xstrdup ("CODE");
  70     SegmentNames [SEG_DATA]     = xstrdup ("DATA");
  71     SegmentNames [SEG_RODATA]   = xstrdup ("RODATA");
  72 }
  73
  74
  75
  76 void NewSegName (segment_t Seg, const char* Name)
  77 /* Set a new name for a segment */
  78 {
  79     /* Check the parameter */
  80     CHECK (Seg != SEG_INV);
  81
  82     /* Free the old name and set a new one */
  83     xfree (SegmentNames [Seg]);
  84     SegmentNames [Seg] = xstrdup (Name);
  85 }
  86
  87
  88
  89 int ValidSegName (const char* Name)
  90 /* Return true if the given segment name is valid, return false otherwise */
  91 {
  92     /* Must start with '_' or a letter */
  93     if ((*Name != '_' && !IsAlpha(*Name)) || strlen(Name) > 80) {
  94         return 0;
  95     }
  96
  97     /* Can have letters, digits or the underline */
  98     while (*++Name) {
  99         if (*Name != '_' && !IsAlNum(*Name)) {
 100             return 0;
 101         }
 102     }
 103
 104     /* Name is ok */
 105     return 1;
 106 }
 107
 108
 109