Rewritten in C++

[anagram.git] / validity.hpp

diff --git a/validity.hpp b/validity.hpp
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+/**********************************************************************
+ * Title: Anagram
+ * Description: Application for finding anagrams of a word
+ * Author: Agnibho Mondal
+ * Website: http://code.agnibho.com/anagram
+ **********************************************************************
+   Copyright (c) 2013-2015 Agnibho Mondal
+   All rights reserved
+ **********************************************************************
+   This file is part of Anagram.
+   
+   Anagram is free software: you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation, either version 3 of the License, or
+   (at your option) any later version.
+   
+   Anagram 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 General Public License for more details.
+   
+   You should have received a copy of the GNU General Public License
+   along with Anagram.  If not, see <http://www.gnu.org/licenses/>.
+ **********************************************************************/
+#ifndef VALIDITY
+#define VALIDITY
+
+/*
+ * Provides a function for checking validity of the word.
+ */
+
+#include <string> //For string
+#include <cctype> //For isalpha, isblank
+
+bool is_valid(std::string word, bool multi){ //Checks the validity of the provided word. Allows multiline if <multi> is true.
+  bool flag=true; //Flag is true by default. Set to false if invalidity is encountered later.
+  if(multi){ //Multi-word
+    for(int i=0; i<word.length(); i++){
+      if(!(isalpha(word[i]) || isblank(word[i]))){ //Multi-word allows space seperated words.
+       flag=false;
+      }
+    }
+  }
+  else{ //Single word
+    for(int i=0; i<word.length(); i++){
+      if(!(isalpha(word[i]))){ //Only alphabetic characters are allowed.
+       flag=false;
+      }
+    }
+  }
+  return flag;
+}
+
+#endif //VALIDITY