Seeding from the 1.2 tree.

include/alist.h

@@ -0,0 +1,116 @@
+/*
+ * alist.h -- resizeable arrays
+ * Copyright 1997 EPIC Software Labs
+ */
+
+#ifndef __alist_h__
+#define __alist_h__
+
+#include "irc.h"
+#include "ircaux.h"
+
+/*
+ * Anyone have any ideas how to optimize this further?
+ */
+
+#ifdef _cs_alist_hash_
+static __inline u_32int_t 	cs_alist_hash (const char *s, u_32int_t *mask)
+{
+	u_32int_t x;
+
+	if (s[0] == 0)
+	{
+		x = 0;
+		*mask = 0;
+	}
+	else if (s[1] == 0)
+	{
+		x = (s[0] << 24);
+		*mask = 0xff000000;
+	}
+	else if (s[2] == 0)
+	{
+		x = (s[0] << 24) | (s[1] << 16);
+		*mask = 0xffff0000;
+	}
+	else
+	{
+		x = (s[0] << 24) | (s[1] << 16) | (s[2] << 8) | s[3];
+		*mask = 0xffffff00 | (s[3] ? 0xff : 0x00);
+	}
+
+	return x;
+}
+#endif
+
+#ifdef _ci_alist_hash_
+static __inline u_32int_t 	ci_alist_hash (const char *s, u_32int_t *mask)
+{
+	u_32int_t x;
+
+	if (s[0] == 0)
+	{
+		x = 0;
+		*mask = 0;
+	}
+	else if (s[1] == 0)
+	{
+		x = (stricmp_table[(int)s[0]] << 24);
+		*mask = 0xff000000;
+	}
+	else if (s[2] == 0)
+	{
+		x = (stricmp_table[(int)s[0]] << 24) | (stricmp_table[(int)s[1]] << 16);
+		*mask = 0xffff0000;
+	}
+	else
+	{
+		x = (stricmp_table[(int)s[0]] << 24) | (stricmp_table[(int)s[1]] << 16) | (stricmp_table[(int)s[2]] << 8) | stricmp_table[(int)s[3]];
+		*mask = 0xffffff00 | (s[3] ? 0xff : 0x00);
+	}
+
+	return x;
+}
+#endif
+
+/*
+ * Everything that is to be filed with this system should have an
+ * identifying name as the first item in the struct.
+ */
+typedef struct
+{
+	char *name;
+	u_32int_t hash;	
+} Array_item;
+
+typedef int (*alist_func) (const char *, const char *, size_t);
+typedef enum {
+	HASH_INSENSITIVE,
+	HASH_SENSITIVE
+} hash_type;
+
+/*
+ * This is the actual list, that contains structs that are of the
+ * form described above.  It contains the current size and the maximum
+ * size of the array.
+ */
+typedef struct
+{
+	Array_item **list;
+	int max;
+	int total_max;
+	alist_func func;
+	hash_type hash;
+} Array;
+
+Array_item *BX_add_to_array	(Array *, Array_item *);
+Array_item *BX_remove_from_array	(Array *, char *);
+Array_item *BX_array_pop		(Array *, int);
+
+Array_item *BX_remove_all_from_array (Array *, char *);
+Array_item *BX_array_lookup	(Array *, char *, int wild, int delete);
+Array_item *BX_find_array_item	(Array *, char *, int *cnt, int *loc);
+
+void *BX_find_fixed_array_item	(void *Array, size_t size, int siz, char *, int *cnt, int *loc);
+
+#endif