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Component Test's Software to work with "Universal Controller Box" - Software is an interpreter or "compiler" for programs to be done with a .txt file and read off of the SD Card
Dependencies: BridgeDriver FrontPanelButtons MCP23017 SDFileSystem TextLCD mbed
Diff: TextFile.h
- Revision:
- 9:5a0c4c6e39c7
- Parent:
- 6:d1594fd2ec5a
- Child:
- 11:bc9cd2869f95
--- a/TextFile.h Wed Sep 24 01:46:02 2014 +0000 +++ b/TextFile.h Wed Sep 24 22:23:00 2014 +0000 @@ -32,26 +32,22 @@ // read file names into vector of strings vector<string> readFileNames(char *dir) { - lcd.setAddress(0,1); - lcd.printf("TEST1"); - vector<string> filenames; DIR *dp; struct dirent *dirp; - lcd.setAddress(0,2); - lcd.printf("TEST2"); - + dp = opendir(dir); - lcd.setAddress(0,3); - lcd.printf("TEST3"); - - //read all directory and file names in current directory into filename vector - while((dirp = readdir(dp)) != NULL) { - filenames.push_back(string(dirp->d_name)); + //if no directory was found, don't try and get the fileNames and return an empty vector of 0 + if (dp != NULL){ + + //read all directory and file names in current directory into filename vector + while((dirp = readdir(dp)) != NULL) { + filenames.push_back(string(dirp->d_name)); + } + closedir(dp); } - closedir(dp); return filenames; } @@ -94,47 +90,48 @@ /******************************************************************************/ // -void getNextLine(FILE *selectedFile, LineData &lineData) { +int getNextLine(FILE *selectedFile, LineData &lineData) { lineData.lineAddress = ftell(selectedFile); + if (lineData.lineAddress == -1L){ + ErrorOut("Unable to get address of line, SD Card Removed?", lineData.lineNumber + 1); + return -1; + } + //char *newLine; //getline(selectedFile, newLine); char newLine[MAX_LINE_LENGTH]; fgets(newLine, MAX_LINE_LENGTH, selectedFile); - string tempString(newLine); - //lineData.fullLine = newLine; - lineData.lineNumber++; + if (newLine == NULL){ + ErrorOut("Unable to get the next line, SD Card Removed?", lineData.lineNumber + 1); + return -1; + } - stringstream newLineStrm(newLine); - //string tempWord = strtok(cpyLine, " "); + lineData.lineNumber++; // new line successfully found, increase lineNumber + //pull out each individual word (separated by any white space), and place it in the vector + stringstream newLineStrm(newLine); istream_iterator<string> it(newLineStrm); istream_iterator<string> end; vector<string> results(it, end); + + //copy the vector of results into the array of words copy(results.begin(), results.end(), lineData.word); lineData.numWords = results.size(); //Record the number of words in the line - results.erase(results.begin(), results.end()); + results.erase(results.begin(), results.end()); //remove the results vector from memory - /* - int numWords = 0; - while (tempWord != NULL){ - strcpy(lineData.word[numWords], tempWord); //Record the word in the lineData array - numWords++; //add the number of words first, since we've already got one word, this helps for the way the while loop works too - tempWord = strtok(NULL, " "); - }*/ - - - + //Update the Current Line Number lcd.setAddress(0,2); lcd.printf("Current Line#: %d ", lineData.lineNumber); + //Update the cmd/dvc label for the line so that the user has an idea of what's going on lcd.setAddress(0,3); - lcd.printf(" "); // Clear the Line using Spaces (Emptyness) - Note one line is 20 Characters + lcd.printf(" "); // Clear the Line using Spaces (Emptyness) - Note one line is 20 Characters lcd.setAddress(0,3); lcd.printf("cmd/dvc: %s", lineData.word[0]);