Diff: main.cpp

Revision:

26:30d5cf62ddce

Parent:

20:ec1c4f02d50e

--- a/main.cpp	Mon Aug 29 15:06:56 2016 +0000
+++ b/main.cpp	Wed Feb 08 03:10:58 2017 +0000
@@ -1,129 +1,106 @@
 #include "mbed.h"
 #include "SDFileSystem.h"
+#include <string>
+#include <stdio.h>
+#include <iostream>
+#include <stdlib.h>
+#include <ctype.h>
+#include <stddef.h>
+#include <cstring>
 
-Timer timer;
-DigitalIn button(p21, PullUp);
-SDFileSystem sd(p5, p6, p7, p20, "sd", p22, SDFileSystem::SWITCH_NEG_NO, 25000000);
-char buffer[4096];
+void textToText(FILE *fid){
+
+    const char s[3] = "?."; //delimiter array
+    char line[512]; //char array for storing whole line if match found
+    char *token; //for breaking question and answers into separate tokens
+    //char input[256];
+    char questionAnswer[512]; //for storing question and answer line together
+    int j = 0;
+    //pc.baud(115200);
+    
+    std::string str ("What time is it?"); //
+    char * input = new char [str.length()+1];
+    std::strcpy (input, str.c_str());
+
 
-void writeTest()
-{
-    //Test write performance by creating a 1MB file
-    printf("Testing %iB write performance...", sizeof(buffer));
-    FileHandle* file = sd.open("Test File.bin", O_WRONLY | O_CREAT | O_TRUNC);
-    if (file != NULL) {
-        timer.start();
-        for (int i = 0; i < (1048576 / sizeof(buffer)); i++) {
-            if (file->write(buffer, sizeof(buffer)) != sizeof(buffer)) {
-                timer.stop();
-                printf("write error!\n");
-                timer.reset();
-                return;
+    while(1)
+    {
+        /*
+        //get serial data sent from matlab
+            if(pc.readable())
+            {
+                pc.gets(input, sizeof(input));
+            }
+            else
+            {
+                pc.printf("Error reading input string\n");
+                exit(EXIT_FAILURE);
+            }
+        */
+        
+        //convert question to upper case for accurate parsing        
+        while(input[j])
+        {
+            input[j] = toupper(input[j]);
+            j++;
+        }    
+            
+        //fid = fopen("robotQA.txt", "r");
+        if (fid == NULL)
+        {
+            printf("Error opening file\n");
+            exit(EXIT_FAILURE);
+        }
+    
+        while (!feof(fid))
+        {
+            while(fgets(line, sizeof(line), fid))
+            {
+                if (strstr(line, input)) //if line contains what's in <code>question</code>, store it.
+                {
+                    strncpy(questionAnswer, line, sizeof(questionAnswer));
+                }
             }
         }
-        timer.stop();
-        if (file->close())
-            printf("failed to close file!\n");
-        else
-            printf("done!\n\tResult: %.2fKB/s\n", 1024 / (timer.read_us() / 1000000.0));
-        timer.reset();
-    } else {
-        printf("failed to create file!\n");
-    }
-}
+        fclose(fid);
+        
+        if(strlen(questionAnswer) == 1)//if questionAnswer is empty after parsing, no answer is found
+               printf("I'm not sure. Ask/command something else");
+       
+        //split string, grab portion after '?' or '.' and send back to matlab to display
+        //grab first token
+        token = strtok(questionAnswer,s);
 
-void readTest()
-{
-    //Test read performance by reading the 1MB file created by writeTest()
-    printf("Testing %iB read performance...", sizeof(buffer));
-    FileHandle* file = sd.open("Test File.bin", O_RDONLY);
-    if (file != NULL) {
-        timer.start();
-        int iterations = 0;
-        while (file->read(buffer, sizeof(buffer)) == sizeof(buffer))
-            iterations++;
-        timer.stop();
-        if (iterations != (1048576 / sizeof(buffer)))
-            printf("read error!\n");
-        else if (file->close())
-            printf("failed to close file!\n");
-        else if (sd.remove("Test File.bin"))
-            printf("failed to delete file!\n");
-        else
-            printf("done!\n\tResult: %.2fKB/s\n", 1024 / (timer.read_us() / 1000000.0));
-        timer.reset();
-    } else {
-        printf("failed to open file!\n");
+        while(token != NULL)
+        {
+            token = strtok(NULL,s);
+            printf("%s\n", token);
+            //printf(token);
+        }
     }
 }
 
-int main()
-{
-    //Configure CRC, large frames, and write validation
-    sd.crc(true);
-    sd.large_frames(true);
-    sd.write_validation(true);
-
-    //Fill the buffer with random data for the write test
-    srand(time(NULL));
-    for (int i = 0; i < sizeof(buffer); i++)
-        buffer[i] = rand();
-
-    while(1) {
-        //Simple button debouncing
+int main() {
+    SDFileSystem sd(D11, D12, D13, D10, "sd");
+    FILE *fp;
+    //char str[100]; //to store the string read from SD card
+    
+    //Sometimes it takes a few attempts to mount the card succesfully.
+    while(sd.mount() != 0){
+        printf("Failed to mount SD card.\n");
         wait(0.5);
-
-        //Print the start message
-        printf("\nPress the button to perform tests: ");
-
-        //Wait for the button to be pressed
-        while(button);
-
-        //Make sure a card is present
-        if (!sd.card_present()) {
-            printf("\nNo card present!\n");
-            continue;
-        }
-
-        //Try to mount the SD card
-        printf("\nMounting SD card...");
-        if (sd.mount() != 0) {
-            printf("failed!\n");
-            continue;
-        }
-        printf("success!\n");
-
-        //Display the card type
-        printf("\tCard type: ");
-        SDFileSystem::CardType cardType = sd.card_type();
-        if (cardType == SDFileSystem::CARD_NONE)
-            printf("None\n");
-        else if (cardType == SDFileSystem::CARD_MMC)
-            printf("MMC\n");
-        else if (cardType == SDFileSystem::CARD_SD)
-            printf("SD\n");
-        else if (cardType == SDFileSystem::CARD_SDHC)
-            printf("SDHC\n");
-        else
-            printf("Unknown\n");
-
-        //Display the card capacity
-        printf("\tSectors: %u\n", sd.disk_sectors());
-        printf("\tCapacity: %.1fMB\n", sd.disk_sectors() / 2048.0);
-
-        /*//Format the card
-        printf("Formatting SD card...");
-        if (sd.format() != 0) {
-            printf("failed!\n");
-            continue;
-        }
-        printf("success!\n");*/
-
-        //Perform a read/write test
-        writeTest();
-        readTest();
-
-        //Unmount the SD card
-        sd.unmount();
+        continue;
     }
-}
+    printf("SD card mounted successfully!\n");
+ 
+    fp = fopen("/sd/qa/robotQA.txt", "r"); //Open file for reading
+    //Print error if file could not be opened for reading
+    if(fp == NULL) {
+        error("Could not open file for read\n");
+    }
+    //fscanf(fp, "%s", str); //read contents of file into character array
+    //printf("%s", str); //print out the contents of the file
+    
+    textToText(fp);
+    sd.unmount();//done, unmount the SD card
+}
\ No newline at end of file