sync

__write.cpp

@@ -2,11 +2,15 @@
 #include "Exception.h"
 #include "Expression.h"
 #include <iostream>
+#include <fcntl.h>
+#include <unistd.h>
 
 namespace jet {
    
-   __write::__set(coreutils::ZString &in, coreutils::MString &parent, Global &global) : Tag(in, parent, global) {
+   __write::__write(coreutils::ZString &in, coreutils::MString &parent, Global &global) : Tag(in, parent, global) {
       output = false;
+      int mode = 0;
+      int len;
       processContainer(container);
       if(!variableDefined("file"))
 	throw coreutils::Exception("write tag must have file defined.");
@@ -20,13 +24,24 @@ namespace jet {
 	throw coreutils::Exception("write tag must have a value, expr or a container.");
       if(variableDefined("scope")) 
 	throw coreutils::Exception("Cannot use scope with write tag.");
-      
-
-      int fd = open(variables["file"], O_APPEND | O_TRUNC); // <--- options go here need to pick one
-
-
-      
+      if(!variableDefined("mode"))
+	throw coreutils::Exception("write tag must have a mode keyword.");
+      if(variables["mode"] == "append") 
+	mode = O_APPEND;
+      else if(variables["mode"] == "overwrite")
+	mode = O_TRUNC;
+      else
+	throw coreutils::Exception("mode keyword must be 'overwrite' or 'append'.");
+      int fd = open(variables["file"].c_str(), mode, 0644); // Need to add O_CREAT and AUTH flags.
+      if(hasContainer && !evaluate)
+	len = write(fd, container.getData(), container.getLength());
+      else if(hasContainer && evaluate)
+	len = write(fd, out.getData(), out.getLength());
+      else if(!hasContainer && variableDefined("value"))
+	len = write(fd, variables["value"].getData(), variables["value"].getLength());
+      else if(!hasContainer && variableDefined("expr"))
+	len = write(fd, variables["expr"].getData(), variables["expr"].getLength());            
       close(fd);      
-      
    }
+   
 }