git.sur5r.net Git - cc65/blob - src/ca65/anonname.c

   1 /*****************************************************************************/
   2 /*                                                                           */
   3 /*                                anonname.c                                 */
   4 /*                                                                           */
   5 /*             Create names for anonymous scopes/variables/types             */
   6 /*                                                                           */
   7 /*                                                                           */
   8 /*                                                                           */
   9 /* (C) 2000-2008 Ullrich von Bassewitz                                       */
  10 /*               Roemerstrasse 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 <stdio.h>
  37 #include <string.h>
  38
  39 /* ca65 */
  40 #include "anonname.h"
  41
  42
  43
  44 /*****************************************************************************/
  45 /*                                   Data                                    */
  46 /*****************************************************************************/
  47
  48
  49
  50 static const char AnonTag[] = "$anon";
  51
  52
  53
  54 /*****************************************************************************/
  55 /*                                   Code                                    */
  56 /*****************************************************************************/
  57
  58
  59
  60 StrBuf* AnonName (StrBuf* Buf, const char* Spec)
  61 /* Get a name for an anonymous scope, variable or type. Size is the size of
  62  * the buffer passed to the function, Spec will be used as part of the
  63  * identifier if given. A pointer to the buffer is returned.
  64  */
  65 {
  66     static unsigned ACount = 0;
  67     SB_Printf (Buf, "%s-%s-%04X", AnonTag, Spec, ++ACount);
  68     return Buf;
  69 }
  70
  71
  72
  73 int IsAnonName (const StrBuf* Name)
  74 /* Check if the given symbol name is that of an anonymous symbol */
  75 {
  76     if (SB_GetLen (Name) < sizeof (AnonTag) - 1) {
  77         /* Too short */
  78         return 0;
  79     }
  80     return (strncmp (SB_GetConstBuf (Name), AnonTag, sizeof (AnonTag) - 1) == 0);
  81 }
  82
  83
  84