--- /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(); +}