mdw@git.distorted.org.uk Git - ssr/blob - StraySrc/Utilities/h/gf

   1 /*
   2  * gf.h
   3  *
   4  * Read directories in a buffered way
   5  *
   6  * © 1998 Straylight/Edgeware
   7  */
   8
   9 /*----- Licensing note ----------------------------------------------------*
  10  *
  11  * This file is part of Straylight's core utilities (coreutils).
  12  *
  13  * Coreutils is free software; you can redistribute it and/or modify
  14  * it under the terms of the GNU General Public License as published by
  15  * the Free Software Foundation; either version 2, or (at your option)
  16  * any later version.
  17  *
  18  * Coreutils is distributed in the hope that it will be useful,
  19  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  20  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  21  * GNU General Public License for more details.
  22  *
  23  * You should have received a copy of the GNU General Public License
  24  * along with coreutils.  If not, write to the Free Software Foundation,
  25  * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  26  */
  27
  28 #ifndef GF_H
  29 #define GF_H
  30
  31 #ifdef __cplusplus
  32   extern "C" {
  33 #endif
  34
  35 /*----- Type definitions --------------------------------------------------*/
  36
  37 /* --- Wildcard matcher context --- */
  38
  39 typedef struct gf_ctx {
  40   char buf[1024];                       /* Buffer for OS_HeebieJeebie */
  41   int ctx;                              /* Context for OS_HeebieJeebie */
  42   const char *dir;                      /* Pointer to directory to scan */
  43   const char *pat;                      /* Pointer to pattern string */
  44   int nleft;                            /* Number left in buffer */
  45   char *p;                              /* Pointer into the buffer */
  46 } gf_ctx;
  47
  48 /*----- Functions ---------------------------------------------------------*/
  49
  50 /* --- @gf_init@ --- *
  51  *
  52  * Arguments:   @gf_ctx *g@ = pointer to a context buffer for me
  53  *              @const char *pat@ = pointer to a (RISC OS) pattern string
  54  *              @cost char *dir@ = pointer to name of parent directory
  55  *
  56  * Returns:     ---
  57  *
  58  * Use:         Initialise a wildcard match context ready for scanning.
  59  */
  60
  61 extern void gf_init(gf_ctx */*g*/, const char */*pat*/, const char */*dir*/);
  62
  63 /* --- @gf_next@ --- *
  64  *
  65  * Arguments:   @gf_ctx *g@ = pointer to my context
  66  *
  67  * Returns:     Pointer to a filename, or zero for end
  68  *
  69  * Use:         Returns the next matching file from the block.
  70  */
  71
  72 extern char *gf_next(gf_ctx */*g*/);
  73
  74 /*----- That's all, folks -------------------------------------------------*/
  75
  76 #ifdef __cplusplus
  77   }
  78 #endif
  79
  80 #endif