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- /*
- * "$Id: numericsort.c,v 1.10 1999/03/08 14:53:44 mike Exp $"
- *
- * Numeric sorting routine for the Fast Light Tool Kit (FLTK).
- *
- * Copyright 1998-1999 by Bill Spitzak and others.
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Library General Public
- * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Library General Public License for more details.
- *
- * You should have received a copy of the GNU Library General Public
- * License along with this library; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
- * USA.
- *
- * Please report all bugs and problems to "fltk-bugs@easysw.com".
- */
-
- /* My own scandir sorting function, useful for the film industry where
- we have many files with numbers in their names: */
-
- #include <config.h>
- #include <ctype.h>
- #include <stdlib.h>
- #include <sys/types.h>
-
- #ifdef WIN32
- #include <FL/filename.H>
- #else
- #if HAVE_DIRENT_H
- # include <dirent.h>
- #else
- # define dirent direct
- # if HAVE_SYS_NDIR_H
- # include <sys/ndir.h>
- # endif
- # if HAVE_SYS_DIR_H
- # include <sys/dir.h>
- # endif
- # if HAVE_NDIR_H
- # include <ndir.h>
- # endif
- #endif
- #endif
-
- #ifdef __cplusplus
- extern "C"
- #endif
- int numericsort(struct dirent **A, struct dirent **B) {
- const char* a = (*A)->d_name;
- const char* b = (*B)->d_name;
- int ret = 0;
- for (;;) {
- if (isdigit((unsigned)*a) && isdigit((unsigned)*b)) {
- int diff,magdiff;
- while (*a == '0') a++;
- while (*b == '0') b++;
- while (isdigit((unsigned)*a) && *a == *b) {a++; b++;}
- diff = (isdigit((unsigned)*a) && isdigit((unsigned)*b)) ? *a - *b : 0;
- magdiff = 0;
- while (isdigit((unsigned)*a)) {magdiff++; a++;}
- while (isdigit((unsigned)*b)) {magdiff--; b++;}
- if (magdiff) {ret = magdiff; break;} /* compare # of significant digits*/
- if (diff) {ret = diff; break;} /* compare first non-zero digit */
- } else {
- #if 1
- if ((ret = tolower((unsigned)*a)-tolower((unsigned)*b))) break; /* compare case-insensitve */
- #else
- if ((ret = *a-*b)) break; /* compare case-sensitive */
- #endif
- if (!*a) break;
- a++; b++;
- }
- }
- if (!ret) return 0;
- else return (ret < 0) ? -1 : 1;
- }
-
- /*
- * End of "$Id: numericsort.c,v 1.10 1999/03/08 14:53:44 mike Exp $".
- */
-