xapian-applications/omega/commonhelp.cc

   1 /* commonhelp.cc: handle command line help common to omindex and scriptindex
   2  *
   3  * Copyright (C) 2005,2006,2008,2009,2010,2013 Olly Betts
   4  *
   5  * This program is free software; you can redistribute it and/or
   6  * modify it under the terms of the GNU General Public License as
   7  * published by the Free Software Foundation; either version 2 of the
   8  * License, or (at your option) any later version.
   9  *
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  * GNU General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License
  16  * along with this program; if not, write to the Free Software
  17  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301
  18  * USA
  19  */
  20
  21 #include <config.h>
  22
  23 #include "commonhelp.h"
  24
  25 #include <xapian.h>
  26
  27 #include <cstring>
  28 #include <iostream>
  29 #include <string>
  30
  31 using namespace std;
  32
  33 void print_package_info(const char *name) {
  34     cout << name << " - " PACKAGE_STRING << endl;
  35 }
  36
  37 void print_stemmer_help(const char * spaces) {
  38     cout << "  -s, --stemmer=LANG  " << spaces << "set the stemming language (default: english).\n";
  39     string wrap = "Possible values: " + Xapian::Stem::get_available_languages();
  40     wrap += " (pass 'none' to disable stemming)";
  41     const size_t WRAP_AT = 79 - 22 - strlen(spaces);
  42     while (wrap.size() > WRAP_AT) {
  43         size_t i;
  44         for (i = WRAP_AT; i > 0 && wrap[i] != ' '; --i) { }
  45         if (i == 0) break;
  46         cout << string(22, ' ') << spaces << wrap.substr(0, i) << "\n";
  47         wrap.erase(0, i + 1);
  48     }
  49     cout << string(22, ' ') << spaces << wrap << endl;
  50 }
  51
  52 void print_help_and_version_help(const char * spaces) {
  53     cout << "  -h, --help          " << spaces << "display this help and exit\n"
  54             "  -V, --version       " << spaces << "output version information and exit\n"
  55             "\n"
  56             "Please report bugs at:\n"
  57             PACKAGE_BUGREPORT << endl;
  58 }