nis-util  1.0.D108
lib/rcstring/trim.cc
Go to the documentation of this file.
00001 //
00002 // nis-util - NIS Administration Utilities
00003 // Copyright (C) 2012 Peter Miller
00004 //
00005 // This program is free software; you can redistribute it and/or modify
00006 // it under the terms of the GNU General Public License as published by
00007 // the Free Software Foundation; either version 2 of the License, or (at
00008 // your option) any later version.
00009 //
00010 // This program is distributed in the hope that it will be useful,
00011 // but WITHOUT ANY WARRANTY; without even the implied warranty of
00012 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00013 // General Public License for more details.
00014 //
00015 // You should have received a copy of the GNU General Public License along
00016 // with this program. If not, see <http://www.gnu.org/licenses/>.
00017 //
00018 
00019 #include <lib/ac/ctype.h>
00020 
00021 #include <lib/rcstring.h>
00022 #include <lib/rcstring/accumulator.h>
00023 
00024 
00025 rcstring
00026 rcstring::trim(void)
00027     const
00028 {
00029     rcstring_accumulator acc;
00030     const char *cp = c_str();
00031     while (isspace((unsigned char)*cp))
00032         ++cp;
00033     bool insert_one_space = false;
00034     for (;;)
00035     {
00036         unsigned char c = *cp++;
00037         if (!c)
00038             return acc.mkstr();
00039         if (isspace(c))
00040             insert_one_space = true;
00041         else
00042         {
00043             if (insert_one_space)
00044                 acc.push_back(' ');
00045             acc.push_back(c);
00046             insert_one_space = false;
00047         }
00048     }
00049 }
00050 
00051 
00052 // vim: set ts=8 sw=4 et :