string_utilities.h

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/*%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 
 Header:       string_utilities.h
 Author:       Jon S. Berndt
 Date started: 06/01/09
 
 ------------- Copyright (C) 2009  Jon S. Berndt (jon@jsbsim.org) -------------
 
 This program is free software; you can redistribute it and/or modify it under
 the terms of the GNU Lesser General Public License as published by the Free Software
 Foundation; either version 2 of the License, or (at your option) any later
 version.
 
 This program is distributed in the hope that it will be useful, but WITHOUT
 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
 FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public License for more
 details.
 
 You should have received a copy of the GNU Lesser General Public License along with
 this program; if not, write to the Free Software Foundation, Inc., 59 Temple
 Place - Suite 330, Boston, MA  02111-1307, USA.
 
 Further information about the GNU Lesser General Public License can also be found on
 the world wide web at http://www.gnu.org.
 
HISTORY
--------------------------------------------------------------------------------
06/01/09  JSB  Created
 
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
SENTRY
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%*/
 
#ifndef STRINGUTILS_H
#define STRINGUTILS_H
 
/*%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
INCLUDES
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%*/
 
#include <string>
#include <sstream>
#include <iostream>
#include <vector>
#include <stdio.h>
 
/*%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
CLASS DECLARATION
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%*/
 
#if !defined(BASE)
  extern std::string& trim_left(std::string& str);
  extern std::string& trim_right(std::string& str);
  extern std::string& trim(std::string& str);
  extern std::string& trim_all_space(std::string& str);
  extern std::string& to_upper(std::string& str);
  extern std::string& to_lower(std::string& str);
  extern bool is_number(const std::string& str);
  std::vector <std::string> split(std::string str, char d);
 
  extern std::string replace(std::string str, const std::string& old, const std::string& newstr);
#else
  #include <cctype>
 
  std::string& trim_left(std::string& str)
  {
    while (!str.empty() && isspace((unsigned char)str[0])) {
      str = str.erase(0,1);
    }
    return str;
  }
 
  std::string& trim_right(std::string& str)
  {
    while (!str.empty() && isspace((unsigned char)str[str.size()-1])) {
      str = str.erase(str.size()-1,1);
    }
    return str;
  }
 
  std::string& trim(std::string& str)
  {
    if (str.empty()) return str;
    std::string temp_str = trim_right(str);
    return str = trim_left(temp_str);
  }
 
  std::string& trim_all_space(std::string& str)
  {
    for (size_t i=0; i<str.size(); i++) {
      if (isspace((unsigned char)str[i])) {
        str = str.erase(i,1);
        --i;
      }
    }
    return str;
  }
 
  std::string& to_upper(std::string& str)
  {
    for (size_t i=0; i<str.size(); i++) str[i] = toupper(str[i]);
    return str;
  }
 
  std::string& to_lower(std::string& str)
  {
    for (size_t i=0; i<str.size(); i++) str[i] = tolower(str[i]);
    return str;
  }
 
  bool is_number(const std::string& str)
  {
    if (str.empty())
      return false;
    else
      return (str.find_first_not_of("+-.0123456789Ee") == std::string::npos);
  }
 
  std::vector <std::string> split(std::string str, char d)
  {
    std::vector <std::string> str_array;
    size_t index=0;
    std::string temp = "";
 
    trim(str);
    index = str.find(d);
    while (index != std::string::npos) {
      temp = str.substr(0,index);
      trim(temp);
      if (!temp.empty()) str_array.push_back(temp);
      str = str.erase(0,index+1);
      index = str.find(d);
    }
    if (!str.empty()) {
      temp = trim(str);
      if (!temp.empty()) str_array.push_back(temp);
    }
 
    return str_array;
  }
 
  std::string replace(std::string str, const std::string& oldstr, const std::string& newstr)
  {
    std::string temp = str;
    size_t old_idx = str.find(oldstr);
    if (old_idx != std::string::npos) {
      temp = str.replace(old_idx, 1, newstr);
    }
    return temp;
  }
 
#endif
 
//%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 
#endif