Initial commit

1 files changed, 104 insertions, 0 deletions

diff --git a/morse.cpp b/morse.cpp
new file mode 100644
index 0000000..95c5114
--- /dev/null
+++ b/morse.cpp
@@ -0,0 +1,104 @@
+#include <led.h>
+#include <iostream>
+#include <string>
+#include <map>
+#include <ctime>
+#include <cctype>
+#include <unistd.h>
+#include <cstring>
+using namespace std;
+void dot()
+{
+  cout << "." << flush;
+  setLight(true);
+  usleep(250000);
+  setLight(false);
+}
+void dash()
+{
+  cout << "-" << flush;
+  setLight(true);
+  usleep(750000);
+  setLight(false);
+}
+static map<string, string> table;
+void transmit(const string& str)
+{
+  cout << "Transmitting message in Morse code via ACT LED..." << endl;
+  for(unsigned long long i=0;i<str.length();++i)
+    {
+      char ch=str[i];
+      string tmp;
+      tmp=toupper(ch);
+      string morse=table[tmp];
+      if(morse!="")
+	cout << ch << ": " << flush;
+      for(unsigned int j=0;j<morse.length();++j)
+	{
+	  char morseCh=morse[j];
+	  if(morseCh=='.')
+	    dot();
+	  else if(morseCh=='-')
+	    dash(); 
+	  usleep(200000);
+	}
+      if(morse!="")
+	cout << " " << flush;
+      usleep(250000); // between chars
+      if(isspace(ch))
+	{
+	  cout << " " << flush;
+	  usleep(500000); // extra for spaces
+	}
+    }
+}
+
+void init_morse()
+{
+  table["A"]=".-";
+  table["B"]="-...";
+  table["C"]="-.-.";
+  table["D"]="-..";
+  table["E"]=".";
+  table["F"]="..-.";
+  table["G"]="--.";
+  table["H"]="....";
+  table["I"]="..";
+  table["J"]=".---";
+  table["K"]="-.-";
+  table["L"]=".-..";
+  table["M"]="--";
+  table["N"]="-.";
+  table["O"]="---";
+  table["P"]=".--.";
+  table["Q"]="--.-";
+  table["R"]=".-.";
+  table["S"]="...";
+  table["T"]="-";
+  table["U"]="..-";
+  table["V"]="...-";
+  table["W"]=".--";
+  table["X"]="-..-";
+  table["Y"]="-.--";
+  table["Z"]="--..";
+  table["0"]="-----";
+  table["1"]=".----";
+  table["2"]="..---";
+  table["3"]="...--";
+  table["4"]="....-";
+  table["5"]=".....";
+  table["6"]="-....";
+  table["7"]="--...";
+  table["8"]="---..";
+  table["9"]="----.";
+  table["."]=".-.-.-";
+  table[","]="--..--";
+  table["("]="-.--.";
+  table[")"]="-.--.-";
+  table["/"]="-..-.";
+  table["="]="-...-";
+  table["+"]=".-.-.";
+  table["-"]="-....-";
+  table["\""]=".-..-.";
+  table["@"]=".--.-.";
+}