txtFile.h

00001 /*
00002 txtFile.h
00003 
00004 Header file containing outline for all methods dealing
00005 with txt file data, editing, reading, searching etc.
00006 
00007 */
00008 
00009 #ifndef TXTFILE_H
00010 #define TXTFILE_H
00011 
00012 #include "mbed.h"
00013 #include "SDFileSystem.h"
00014 #include <string>
00015 
00016 class TxtFile {
00017 
00018 public:
00019 //constructor and deconstructor
00020     TxtFile(char fileAddr[], char *readWrite, bool doParseFile);
00021     ~TxtFile();
00022 
00023     //returns whether a file is open or not
00024     bool isOpen();                  //done
00025 
00026     //closes the file and returns true if successful
00027     bool closeFile();               //done
00028     
00029     //returns if the file is parsed or not
00030     bool isParsed();                //done
00031     
00032     //counts the number of lines and sets the line start locations
00033     void parseFile();               //needs testing
00034     
00035     //returns the number of lines
00036     int lineCount();
00037 
00038     //seeks to the position seekLoc
00039     void seekPos(int seekLoc);      //done
00040     
00041     //returns currentFilePos
00042     int getPos();                   //done
00043     
00044     //seeks to the start of the current line
00045     int seekLineStart();
00046     
00047     //seeks to the end of the current line
00048     int seekLineEnd();
00049     
00050     //seeks to a specific line start
00051     void seekLine(int line);
00052     
00053     //returns which line pointer is on
00054     int getLine();
00055 
00056     //returns the length of the current line
00057     int lineLength();               //done
00058     
00059     //converts a csv in a file to an array - will only read off one line
00060     void csvToIntArray(int line, int arrayStart, int arrayEnd, int *array);
00061     
00062     //reads a line
00063     void readLine(int line);
00064     
00065 
00066 private:
00067 
00068     FILE *fp;
00069 
00070     bool isFileOpen;                //value representing if the file is open or not
00071     bool isFileParsed;              //representing if the file has been parsed or not
00072     
00073     int noLines;                    //number of lines in the file, with a -1 offset (1 line = 0, 2 lines = 1 etc)
00074     int fileLineStart[];            //starting seek location for every line in the file
00075     int fileLineLength[];           //length of each line
00076     int currentFilePos;             //current position in the file relative to the start
00077 };
00078 
00079 #endif