Diff: shell.cpp

Revision:

15:a32db434af65

Parent:

14:73ef945b8def

--- a/shell.cpp	Thu Apr 24 23:27:17 2014 +0000
+++ b/shell.cpp	Fri Apr 25 16:22:54 2014 +0000
@@ -159,6 +159,7 @@
 
     if(findString("turn")) parseLEDState();
     if(findString("generate")) parseGenerate();
+    if(findString("get")) parseGet();
 }
 //-----------------------------------------------------------------------------
 
@@ -232,6 +233,13 @@
 }
 //-----------------------------------------------------------------------------
 
+void Shell::parseGet()
+{
+    if(findString("pi")) generatePi();
+    else sendText(" -- get what?");
+}
+//-----------------------------------------------------------------------------
+
 void Shell::reportPushButtonPress(ePushButton thisPushButton)
 {
     switch(thisPushButton) {
@@ -242,52 +250,47 @@
 }
 //-----------------------------------------------------------------------------
 
-#define  n    1000//1125
-#define  len  10*n/3
-
 void Shell::generatePi()
 {
-    int  i, j, k, q, x, nines, predigit, digits;
-    int  a[len];
-
-    sendText(" -- Pi = ");
+    const int n = 1000, len = 10 * n / 3 + 1;
+    int i, j, k, q = 0, x, nines = 0, predigit = 0, digits = 0, a[len];
 
-    digits=0;
-    for (j=1; j<=len; j++)
-        a[j] = 2;
-    nines = 0;
-    predigit = 0;//               {First predigit is a 0}
-    for (j=1; j<=n; j++) {
+    decimalCounter = 0;
+    for(j = 0; j < len; j++) a[j] = 2;
+    for(j = 0; j < n; j++) {
         q = 0;
-        for(i=len; i>0; i--) {
-            x    = 10*a[i] + q*i;
-            a[i] = x % (2*i - 1);
-            q    = x / (2*i - 1);
-
+        for(i = len; i > 0; i--) {
+            x = 10 * a[i] + q * i;
+            a[i] = x % (2 * i - 1);
+            q = x / (2 * i - 1);
         }
         a[1] = q % 10;
-        q = q / 10;
-        if (q == 9) {
-            nines++;
-        } else {
-            if (q == 10) {
-                usbSerial->printf("%d",predigit+1);
-                for (k=1; k<=nines; k++) // to nines do
-                    usbSerial->printf("0");//            {zeros}
+        q /= 10;
+        if(q == 9) nines++;
+        else {
+            if(q == 10) {
+                sendDecimal(predigit + 1);
+                for(k = 0; k < nines; k++) sendDecimal(0);
                 predigit = 0;
-                nines = 0;
             } else {
-                usbSerial->printf("%d",predigit);
+                sendDecimal(predigit);
                 predigit = q;
-                if (nines != 0) { // then
-                    for(k=1; k<=nines; k++) // do
-                        usbSerial->printf("9");
-                    nines = 0;
-                }
+                for(k = 0; k < nines; k++) sendDecimal(9);
             }
-            digits++;
-            digits+=nines;
+            nines = 0;
+            digits += nines + 1;
         }
     }
 }
 //-----------------------------------------------------------------------------
+
+void Shell::sendDecimal(uint8_t decimal)
+{
+    switch(decimalCounter) {
+        case 0: break;
+        case 1: usbSerial->printf(" -- pi = %d.", decimal); break;
+        default: usbSerial->printf("%d", decimal);
+    }
+    decimalCounter++;    
+}
+//-----------------------------------------------------------------------------