Version 0.4d

1 files changed, 136 insertions, 0 deletions

diff --git a/src/strutils.cpp b/src/strutils.cpp
new file mode 100644
index 0000000..6e6a22c
--- /dev/null
+++ b/src/strutils.cpp
@@ -0,0 +1,136 @@
+ /********************************************************************************
+ *  File: strutils.cpp            								*
+ *  Date: 20080508                    							*
+ *  Author: Gaspar Fernández (helyo@totaki.com) 				*
+ *										*
+ *  Copyright (C) 2008   Gaspar Fernández					*
+ *										*
+ *  This program 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.  	      	  	   		*
+ *										*
+ *  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 General Public License for more details.				*
+ *										*
+ *  You should have received a copy of the GNU General Public License		*
+ *  along with this program.  If not, see <http://www.gnu.org/licenses/>.	*
+ *									        *
+ ********************************************************************************
+ *   Description:
+ *     Some functions with strings.
+ *   
+ *   Change History:
+ *    Date       Author     Modification
+ *    
+ ********************************************************************************/ 
+const std::string whiteSpaces( " \f\n\r\t\v" );
+
+/*************************************************************
+ *  Functions: trimRight, trimLeft, trim                      *
+ *************************************************************
+ *  Description:                                             *
+ *     Erases whitespaces (or any other characters) at the   *
+ *  beginning, at the end, and at both of one string.        *
+ *  Everything considered whitespace is in shiteSpaces       *
+ *  constant (at the top of this file)                       *
+ *                                                           *
+ * Input:                                                    *
+ *   string& str - The strim we'd like to trim               *
+ *   string& trimChars - Characters we want to erase.        * 
+ *                                                           * 
+ * Output:                                                   *
+ *   string& str (trimRight, trimLeft) - Our original string * 
+ *                                       trimmed.            * 
+ *   string (return value in trim()) - Trimmed string.       * 
+ *                                                           *
+ * Change History:                                           *
+ *  Date      Author      Modification                       *
+ *                                                           *
+ *************************************************************/ 
+void trimRight(string& str,
+      const string& trimChars = whiteSpaces )
+{
+  string::size_type pos = str.find_last_not_of( trimChars );
+  str.erase( pos + 1 );
+
+}
+
+void trimLeft(string& str,
+      const string& trimChars = whiteSpaces )
+{
+   string::size_type pos = str.find_first_not_of( trimChars );
+   str.erase( 0, pos );
+
+}
+
+string trim( string str, const string& trimChars = whiteSpaces )
+{
+   trimRight( str, trimChars );
+   trimLeft( str, trimChars );
+   return str;
+}
+
+/*************************************************************
+ *     Function: load_str_chr                                *
+ *************************************************************
+ *  Description:                                             *
+ *     Reserves memory for a char* that will contain the     *
+ *  data within a string or another *char                    *
+ *                                                           *
+ *                                                           *
+ * Input:                                                    *
+ *   char **ptr - Where we will store the string             * 
+ *   string str (or char* str) - Where the string is         * 
+ *                                                           *
+ * Output:                                                   *
+ *   The string will be in char **ptr                        * 
+ *                                                           *
+ * Change History:                                           *
+ *  Date      Author      Modification                       *
+ *                                                           *
+ *************************************************************/ 
+void load_str_chr(char **ptr, const string str)
+{
+  *ptr=new char[str.size()+1];
+  std::strcpy(*ptr,str.data());
+}
+
+void load_str_chr(char **ptr, const char* str)
+{
+  *ptr=new char[std::strlen(str)+1];
+  std::strcpy(*ptr,str);
+}
+
+/*************************************************************
+ *     Function: find_str_in_array                           *
+ *************************************************************
+ *  Description:                                             *
+ *     Finds a str as an element in an array of char*        *
+ *                                                           *
+ * Input:                                                    *
+ *   const char *str - The string we want to find            *
+ *   const char *array - The array where the string may be   *
+ *   int elements - The number of strings the array has      *
+ *                                                           * 
+ * Output:                                                   *
+ *   int - The index of the array where the string is.       *
+ *      If we couldn't find it, it returns -1                * 
+ *                                                           *
+ * Change History:                                           *
+ *  Date      Author      Modification                       *
+ *                                                           *
+ *************************************************************/ 
+int find_str_in_array(const char *str, const char *array[], int elements)
+{
+  int i=0, pos=-1;
+  while ((i<elements) && (pos==-1))
+    {
+      if (std::strcmp(array[i], str)==0)
+	pos=i;
+      i++;
+    }
+  return pos;
+}