Diff: shell.cpp

Revision:

11:4c6c6d6c0ebe

Parent:

10:85a8da3b7e5e

Child:

12:b846b64e3980

--- a/shell.cpp	Tue Apr 15 03:12:29 2014 +0000
+++ b/shell.cpp	Wed Apr 16 03:41:12 2014 +0000
@@ -42,13 +42,14 @@
             finishCharacterBuffer();
             parseCommands();
             usbSerial->printf("\n> ");
-            ledColors->flashWhite(10);
+            // ledColors->flashWhite(10);
+            ledColors->flash(lcBlue, 10);
         }
 
         // if not, just print the character
         else if(addCharacterToBuffer(character)) {
             usbSerial->printf("%c", character);
-            ledColors->flashGreen(10);
+            ledColors->flash(lcGreen, 10);
         }
     }
 }
@@ -73,38 +74,50 @@
 }
 //-----------------------------------------------------------------------------
 
-bool Shell::findString(char *thisString, uint32_t stringLength)
+char Shell::lowercase(char thisChar)
+{
+    // check if this character is uppercase
+    if((thisChar >= 'A') && (thisChar <= 'Z')) thisChar += 32;
+    
+    return thisChar;
+}
+//-----------------------------------------------------------------------------
+
+bool Shell::findString(char *thisString)
 {
     bool found = false;
-    uint32_t startPointer = 0, characterPointer, newStartLocation;
+    uint32_t startPointer = 0, characterPointer, newStartLocation, stringLength = 0;
     char firstChar, secondChar;
-    
+
+    // determine the length of thisString
+    while(thisString[stringLength]) stringLength++;
+
     // start at the start position (0) on the input buffer
-    while(!found 
-        && (characterCount >= stringLength)
-        && (startPointer <= characterCount - stringLength)) {
-        
+    while(!found
+            && (characterCount >= stringLength)
+            && (startPointer <= characterCount - stringLength)) {
+
         // start at the beginning of the compare string (thisString)
         found = true;
         characterPointer = 0;
         while(found && (characterPointer < stringLength)) {
-            
+
             // get and compare characters
             firstChar = inputBuffer[startPointer + characterPointer];
             secondChar = thisString[characterPointer];
-            found = (firstChar == secondChar);
-            
+            found = (lowercase(firstChar) == lowercase(secondChar));
+
             // for debugging
             // usbSerial->printf("(compare %c with %c)\n", firstChar, secondChar);
-            
+
             // move up to next characters
             characterPointer++;
         }
-        
+
         // move start position
         if(found) {
             newStartLocation = startPointer + stringLength;
-            
+
             // clean up from buffer
             characterPointer = newStartLocation;
             while(characterPointer < characterCount) {
@@ -114,7 +127,7 @@
             }
             characterCount -= newStartLocation;
             inputBuffer[characterCount] = 0;
-            
+
             // for debugging send buffer
             /*
             if(characterCount) {
@@ -124,10 +137,10 @@
             }
             */
         }
-        
+
         startPointer++;
     }
-    
+
     // report
     return found;
 }
@@ -135,6 +148,54 @@
 
 void Shell::parseCommands()
 {
-    if(findString("set", 3)) sendText(" -- \"set\" found!");
+    if(findString("set")) sendText(" -- \"set\" found!");
+    if(findString("Clark")) sendText(" -- \"Clark\" found!");
+    if(findString("Stefan")) sendText(" -- Hi \"Stefan\"!");
+    if(findString("Ralph")) sendText(" -- Hey, that's me!");
+
+    if(findString("turn")) parseLED();
 }
 //-----------------------------------------------------------------------------
+
+void Shell::parseLED()
+{
+    // example text: turn blue LED on
+
+    eLEDColor ledColor = lcNone;
+    if(findString("red")) ledColor = lcRed;
+    if(findString("blue")) ledColor = lcBlue;
+    if(findString("green")) ledColor = lcGreen;
+
+    if(ledColor == lcNone) {
+        sendText(" -- missing LED color: red, blue or green");
+        sendExample();
+    }
+    else {
+        if(findString("LED")) {
+
+            eState state = stNone;
+            if(findString("on")) state = stOn;
+            if(findString("off")) state = stOff;
+            
+            if(state == stNone) {
+                sendText(" -- missing state: on or off");
+                sendExample();
+            }
+            else {
+                sendText(" -- done!");
+                ledColors->turn(ledColor, state);
+            }
+        }
+        else {
+            sendText(" -- specify LED");
+            sendExample();
+        }
+    }
+}
+//-----------------------------------------------------------------------------
+
+void Shell::sendExample()
+{
+    sendText(" -> example: turn red LED on");
+}
+//-----------------------------------------------------------------------------
\ No newline at end of file