libexplain  1.4.D001
libexplain/errno_info/by_text_fuzzy.c
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00001 /*
00002  * libexplain - Explain errno values returned by libc functions
00003  * Copyright (C) 2008-2010, 2013 Peter Miller
00004  * Written by Peter Miller <pmiller@opensource.org.au>
00005  *
00006  * This program is free software; you can redistribute it and/or modify
00007  * it under the terms of the GNU Lesser General Public License as published by
00008  * the Free Software Foundation; either version 3 of the License, or (at
00009  * your option) any later version.
00010  *
00011  * This program is distributed in the hope that it will be useful,
00012  * but WITHOUT ANY WARRANTY; without even the implied warranty of
00013  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00014  * Lesser General Public License for more details.
00015  *
00016  * You should have received a copy of the GNU Lesser General Public License
00017  * along with this program. If not, see <http://www.gnu.org/licenses/>.
00018  */
00019 
00020 #include <libexplain/ac/string.h>
00021 
00022 #include <libexplain/errno_info/table.h>
00023 #include <libexplain/fstrcmp.h>
00024 
00025 
00026 const explain_errno_info_t *
00027 explain_errno_info_by_text_fuzzy(const char *text)
00028 {
00029     const explain_errno_info_t *tp;
00030     const explain_errno_info_t *end;
00031     const explain_errno_info_t *best_tp;
00032     double          best_weight;
00033 
00034     end = explain_errno_info + explain_errno_info_size;
00035     best_tp = 0;
00036     best_weight = 0.6;
00037     for (tp = explain_errno_info; tp < end; ++tp)
00038     {
00039         double          weight;
00040 
00041         weight = explain_fstrcmp(strerror(tp->error_number), text);
00042         if (best_weight < weight)
00043         {
00044             best_weight = weight;
00045             best_tp = tp;
00046         }
00047         if (tp->description)
00048         {
00049             weight = explain_fstrcmp(tp->description, text);
00050             if (best_weight < weight)
00051             {
00052                 best_weight = weight;
00053                 best_tp = tp;
00054             }
00055         }
00056     }
00057     return best_tp;
00058 }
00059 
00060 
00061 /* vim: set ts=8 sw=4 et : */