Imported from ../bash-2.05.tar.gz.

lib/sh/stringvec.c

@@ -0,0 +1,141 @@
+/* stringvec.c - function for managing arrays of strings. */
+
+/* Copyright (C) 2000 Free Software Foundation, Inc.
+
+   This file is part of GNU Bash, the Bourne Again SHell.
+
+   Bash is free software; you can redistribute it and/or modify it under
+   the terms of the GNU General Public License as published by the Free
+   Software Foundation; either version 2, or (at your option) any later
+   version.
+
+   Bash 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 General Public License
+   for more details.
+
+   You should have received a copy of the GNU General Public License along
+   with Bash; see the file COPYING.  If not, write to the Free Software
+   Foundation, 59 Temple Place, Suite 330, Boston, MA 02111 USA. */
+
+#include "config.h"
+
+#include "bashtypes.h"
+
+#if defined (HAVE_UNISTD_H)
+#  include <unistd.h>
+#endif
+
+#include "bashansi.h"
+#include <stdio.h>
+#include <ctype.h>
+
+#include "shell.h"
+
+#ifdef INCLUDE_UNUSED
+/* Find NAME in ARRAY.  Return the index of NAME, or -1 if not present.
+   ARRAY should be NULL terminated. */
+int
+find_name_in_array (name, array)
+     char *name, **array;
+{
+  int i;
+
+  for (i = 0; array[i]; i++)
+    if (STREQ (name, array[i]))
+      return (i);
+
+  return (-1);
+}
+#endif
+
+/* Allocate an array of strings with room for N members. */
+char **
+alloc_array (n)
+     int n;
+{
+  return ((char **)xmalloc ((n) * sizeof (char *)));
+}
+
+/* Return the length of ARRAY, a NULL terminated array of char *. */
+int
+array_len (array)
+     char **array;
+{
+  register int i;
+
+  for (i = 0; array[i]; i++);
+  return (i);
+}
+
+/* Free the contents of ARRAY, a NULL terminated array of char *. */
+void
+free_array_members (array)
+     char **array;
+{
+  register int i;
+
+  if (array == 0)
+    return;
+
+  for (i = 0; array[i]; i++)
+    free (array[i]);
+}
+
+void
+free_array (array)
+     char **array;
+{
+  if (array == 0)
+    return;
+
+  free_array_members (array);
+  free (array);
+}
+
+/* Allocate and return a new copy of ARRAY and its contents. */
+char **
+copy_array (array)
+     char **array;
+{
+  register int i;
+  int len;
+  char **new_array;
+
+  len = array_len (array);
+
+  new_array = (char **)xmalloc ((len + 1) * sizeof (char *));
+  for (i = 0; array[i]; i++)
+    new_array[i] = savestring (array[i]);
+  new_array[i] = (char *)NULL;
+
+  return (new_array);
+}
+
+/* Comparison routine for use with qsort() on arrays of strings.  Uses
+   strcoll(3) if available, otherwise it uses strcmp(3). */
+int
+qsort_string_compare (s1, s2)
+     register char **s1, **s2;
+{
+#if defined (HAVE_STRCOLL)
+   return (strcoll (*s1, *s2));
+#else /* !HAVE_STRCOLL */
+  int result;
+
+  if ((result = **s1 - **s2) == 0)
+    result = strcmp (*s1, *s2);
+
+  return (result);
+#endif /* !HAVE_STRCOLL */
+}
+
+/* Sort ARRAY, a null terminated array of pointers to strings. */
+void
+sort_char_array (array)
+     char **array;
+{
+  qsort (array, array_len (array), sizeof (char *),
+	 (Function *)qsort_string_compare);
+}
+