src/stringtable.cc

changeset 75
bf8c57437231
child 81
071715c17296
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/stringtable.cc	Mon Jan 13 23:44:15 2014 +0200
@@ -0,0 +1,81 @@
+/*
+	Copyright (c) 2012-2014, Santeri Piippo
+	All rights reserved.
+
+	Redistribution and use in source and binary forms, with or without
+	modification, are permitted provided that the following conditions are met:
+
+		* Redistributions of source code must retain the above copyright
+		  notice, this list of conditions and the following disclaimer.
+
+		* Redistributions in binary form must reproduce the above copyright
+		  notice, this list of conditions and the following disclaimer in the
+		  documentation and/or other materials provided with the distribution.
+
+		* Neither the name of the <organization> nor the
+		  names of its contributors may be used to endorse or promote products
+		  derived from this software without specific prior written permission.
+
+	THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
+	ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+	WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+	DISCLAIMED. IN NO EVENT SHALL <COPYRIGHT HOLDER> BE LIABLE FOR ANY
+	DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+	(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+	LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+	ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+	(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+	SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+*/
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include "stringtable.h"
+
+static string_list g_string_table;
+
+// ============================================================================
+//
+const string_list& get_string_table()
+{
+	return g_string_table;
+}
+
+// ============================================================================
+// Potentially adds a string to the table and returns the index of it.
+//
+int get_string_table_index (const string& a)
+{
+	// Must not be too long.
+	if (a.length() >= g_max_string_length)
+		error ("string `%1` too long (%2 characters, max is %3)\n",
+			   a, a.length(), g_max_string_length);
+
+	// Find a free slot in the table.
+	int idx;
+
+	for (idx = 0; idx < g_string_table.size(); idx++)
+	{
+		// String is already in the table, thus return it.
+		if (g_string_table[idx] == a)
+			return idx;
+	}
+
+	// Check if the table is already full
+	if (g_string_table.size() == g_max_stringlist_size - 1)
+		error ("too many strings!\n");
+
+	// Now, dump the string into the slot
+	g_string_table[idx] = a;
+
+	return idx;
+}
+
+// ============================================================================
+// Counts the amount of strings in the table.
+//
+int num_strings_in_table()
+{
+	return g_string_table.size();
+}

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