Starmap image generator, preview 1

git-svn-id: svn://svn.code.sf.net/p/sc2/code/trunk@2254 8092fc87-c524-0410-9efc-e669fe64eaf9

tools/map/stringbank.c

@@ -0,0 +1,106 @@
+/*  stringbank.c, Copyright (c) 2005 Michael C. Martin */
+
+/*
+ *  This program 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 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope thta it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  Se the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "stringbank.h"
+
+#define CHUNK_SIZE (1024 - sizeof (void *) - sizeof (int))
+
+typedef struct _stringbank_chunk {
+	char data[CHUNK_SIZE];
+	int len;
+	struct _stringbank_chunk *next;
+} chunk;
+
+static chunk *bank = NULL;
+
+static void 
+add_chunk (void)
+{
+	chunk *n = malloc (sizeof (chunk));
+	n->len = 0;
+	n->next = bank;
+	bank = n;
+}
+
+const char *
+StringBank_AddString (const char *str)
+{
+	int len = strlen (str);
+	chunk *x = bank;
+	if (len > CHUNK_SIZE)
+		return NULL;
+	while (x) {
+		int remaining = CHUNK_SIZE - x->len;
+		if (len < remaining) {
+			char *result = x->data + x->len;
+			strcpy (result, str);
+			x->len += len + 1;
+			return result;
+		}
+		x = x->next;
+	}
+	/* No room in any currently existing chunk */
+	add_chunk ();
+	strcpy (bank->data, str);
+	bank->len += len + 1;
+	return bank->data;
+}
+
+const char *
+StringBank_AddOrFindString (const char *str)
+{
+	int len = strlen (str);
+	chunk *x = bank;
+	if (len > CHUNK_SIZE)
+		return NULL;
+	while (x) {
+		int i = 0;
+		while (i < x->len) {
+			if (!strcmp (x->data + i, str))
+				return x->data + i;
+			while (x->data[i]) i++;
+			i++;
+		}
+		x = x->next;
+	}
+	/* We didn't find it, so add it */
+	return StringBank_AddString (str);
+}
+
+#ifdef DEBUG
+
+void
+StringBank_Dump (FILE *s)
+{
+	chunk *x = bank;
+	while (x) {
+		int i = 0;
+		while (i < x->len) {
+			fprintf (s, "\"%s\"\n", x->data + i);
+			while (x->data[i]) i++;
+			i++;
+		}
+		x = x->next;
+	}
+}
+
+#endif