4 files changed, 94 insertions, 11 deletions
diff --git a/src/texec/eval.go b/src/texec/eval.go
index 8b22f01..9d2e64d 100644
--- a/src/texec/eval.go
+++ b/src/texec/eval.go
@@ -15,3 +15,10 @@
 */
 
 package texec
+
+import "strings"
+
+// EvalTNSL starts the evaluation on the World's main function with the given flags passed to the program
+func EvalTNSL(world *TWorld, f string) {
+	flags := strings.Split(f, " ")
+}
+\ No newline at end of file
diff --git a/src/texec/libtnsl.go b/src/texec/libtnsl.go
index 7bf4848..8ab214b 100644
--- a/src/texec/libtnsl.go
+++ b/src/texec/libtnsl.go
@@ -16,7 +16,10 @@
 
 package texec
 
-import "fmt"
+import (
+	"fmt"
+	"os"
+)
 
 /**
 	libtnsl module stub.  Contains only parts of the io sub-module.
@@ -54,6 +57,73 @@ func tnslResolve(callPath TPath) bool {
 // out is the variable out (if any)
 // in is the variable in (if any)
 // callPath is the function being called.
-func tnslEval(out, in *TVaraiable, callPath TPath) {
+func tnslEval(out, in *TVariable, callPath TPath) {
 
-}
-\ No newline at end of file
+}
+
+// evaluate a call on a file object
+func tnslFileEval(file, out, in *TVariable, callPath TPath) {
+	
+}
+
+// Generic IO funcs
+
+func tprint(in TVariable) {
+	fmt.Printf("%v", in.Data)
+}
+
+func tprintln(in TVariable) {
+	fmt.Printf("%v\n", in.Data)
+}
+
+func topen_file(in TVariable, out *TVariable) {
+	if in.Type != "string" {
+		panic("Tried to open a file, but did not use a string type for the file name.")
+	}
+	fd, err := os.Create(in.Data.(string))
+	if err != nil {
+		panic(fmt.Sprintf("Failed to open file %v as requested by the program. Aborting.\n%v", in.Data, err))
+	}
+	out.Type = "tnsl.io.File"
+	out.Data = fd
+}
+
+func tclose_file(in TVariable, out *TVariable) {
+	if in.Type != "string" {
+		panic("Tried to open a file, but did not use a string type for the file name.")
+	}
+	fd, err := os.Create(in.Data.(string))
+	if err != nil {
+		panic(fmt.Sprintf("Failed to open file %v as requested by the program. Aborting.\n%v", in.Data, err))
+	}
+	out.Type = "tnsl.io.File"
+	out.Data = fd
+}
+
+
+// File API
+
+// tnsl.io.File.close
+func tfile_close(file *TVariable) {
+	if (*file).Type == "tnsl.io.File" {
+		((*file).Data).(*os.File).Close()
+	}
+}
+
+// tnsl.io.File.read
+func tfile_read(file, out *TVariable) {
+	b := []byte{1}
+	(file.Data).(*os.File).Read(b)
+	if out.Data == "uint8" || out.Data == "int8" {
+		out.Data = b[0]
+	}
+}
+
+// tnsl.io.File.write
+func tfile_write(file, in *TVariable) {
+	b := []byte{1}
+	if in.Data == "uint8" || in.Data == "int8" {
+		b[0] = (in.Data).(byte)
+	}
+	(file.Data).(*os.File).Write(b)
+}
diff --git a/src/texec/world.go b/src/texec/world.go
index 79cc88c..d87119d 100644
--- a/src/texec/world.go
+++ b/src/texec/world.go
@@ -16,7 +16,9 @@
 
 package texec
 
-// TVaraiable represents a single variable in the program
+import "tparse"
+
+// TVariable represents a single variable in the program
 type TVariable struct {
 	Type string
 	Data interface{}
@@ -25,27 +27,27 @@ type TVariable struct {
 // TPath represents a pointer to the current module and file
 // that the thread is working in.
 type TPath struct {
-	Module     []string,
+	Module     []string
 	Artifact   string
 }
 
 // TContext represents a single thread.
 type TContext struct {
-	CallStack []Node,
-	CallEnv   []TPath,
+	CallStack []tparse.Node
+	CallEnv   []TPath
 	VarMap    []map[string]TVariable
 }
 
 // TModule represents a collection of files and sub-modules in a program
 type TModule struct {
-	Files   []Node,
+	Files   []tparse.Node
 	Globals []map[string]TVariable
 	Sub     []TModule
 }
 
 // TWorld represents the full program
 type TWorld struct {
-	Modules  []TModule,
-	MainPath TPath,
-	MainFunc Node
+	Modules  []TModule
+	MainPath TPath
+	MainFunc tparse.Node
 }
diff --git a/src/texec/worldbuilder.go b/src/texec/worldbuilder.go
index 37f05db..54f87f3 100644
--- a/src/texec/worldbuilder.go
+++ b/src/texec/worldbuilder.go
@@ -22,3 +22,7 @@ import "tparse"
 	worldbuilder.go - take in a file name and construct a TWorld based on it.
 */
 
+// BuildWorld creates a new TWorld by parsing a main file and recursively parsing imports.
+func BuildWorld(file string) *TWorld {
+	return nil
+}