1 files changed, 37 insertions, 0 deletions

diff --git a/src/options.cpp b/src/options.cpp
index 3581500..4d64b22 100644
--- a/src/options.cpp
+++ b/src/options.cpp
@@ -3,6 +3,8 @@
 #include "unitnumber.h"

 #include "unitparser.h"

 #include "number.h"

+#include "lexer.h"

+#include "parser.h"

 

 #include <bu/sio.h>

 #include <stdlib.h>

@@ -26,6 +28,12 @@ Options::Options( int argc, char *argv[] ) :
         "Convert the provided number to the given radix in the format "

         "number:to-radix or from-radix:number:to-radix.  The radix should "

         "be provided in base-10");

+    addOption( Bu::slot(this, &Options::execute), 'e', "execute",

+        "Execute the next parameters as an equation and print the result. "

+        "If you want a different scale or radix then set them first. This will "

+        "use all remaining parameters as the equation (you may wish to quote "

+        "your equation to prevent special characters from being interpreted by "

+        "your shell).");

     addHelpOption('h', "help", "This help");

 

     parse( argc, argv );

@@ -158,3 +166,32 @@ int Options::convert( Bu::StringArray aArgs )
     return 0;

 }

 

+int Options::execute( Bu::StringArray aArgs )

+{

+    if( aArgs.getSize() == 1 )

+    {

+        Bu::println("Must provide an equation to execute.");

+        exit( 0 );

+        return 0;

+    }

+    Bu::MemBuf mbIn(aArgs[1]);

+    mbIn.setPos( mbIn.getSize() );

+    for( int j = 2; j < aArgs.getSize(); j++ )

+    {

+        mbIn.write(" ");

+        mbIn.write( aArgs[j] );

+    }

+//    Bu::println("eq: '''%1'''").arg( mbIn.getString() );

+    mbIn.setPos( 0 );

+    Bu::MemBuf mbOut;

+    Lexer lex( mbIn );

+    lex.setScale( iScale );

+    lex.setRadix( iRadix );

+    Parser parser( lex, mbOut );

+    parser.parse();

+    Bu::println( mbOut.getString() );

+    exit( 0 );

+    return aArgs.getSize();

+}

+

+