From ed2f9793fae7d1c018e3de463617339c68faa3c0 Mon Sep 17 00:00:00 2001
From: Kyle Gunger <kgunger12@gmail.com>
Date: Sun, 10 Apr 2022 17:30:30 -0400
Subject: A few fixes + Fix an error with if statements inside loops + Fix a
 parser bug with boolean operators ~ Change libtnsl stub to return integers
 when reading a file ~ Change libtnsl stub to return -1 on EOF or file read
 error

---
 src/texec/eval.go        | 18 +++++++++++++++---
 src/texec/libtnsl.go     |  7 +++++--
 src/tparse/tree-value.go | 27 +++++++++++++++------------
 3 files changed, 35 insertions(+), 17 deletions(-)

diff --git a/src/texec/eval.go b/src/texec/eval.go
index fa187ef..c39d704 100644
--- a/src/texec/eval.go
+++ b/src/texec/eval.go
@@ -994,10 +994,16 @@ func evalValue(v tparse.Node, ctx *VarMap) *TVariable {
 		case "<":
 			out.Type = tBool
 			out.Data = a.Data.(float64) < b.Data.(float64)
-		case ">=":
+		case "!>":
+			out.Type = tBool
+			out.Data = a.Data.(float64) <= b.Data.(float64)
+		case "!<":
 			out.Type = tBool
 			out.Data = a.Data.(float64) >= b.Data.(float64)
-		case "<=":
+		case ">==":
+			out.Type = tBool
+			out.Data = a.Data.(float64) >= b.Data.(float64)
+		case "<==":
 			out.Type = tBool
 			out.Data = a.Data.(float64) <= b.Data.(float64)
 		}
@@ -1081,7 +1087,13 @@ func evalCF(v tparse.Node, ctx *VarMap) (bool, TVariable, int) {
 					if val.Data.(bool) == true {
 						i++
 
-						for ;i < len(v.Sub) && getNames(v.Sub[i])[0] == "else"; i++ {}
+						for ;i < len(v.Sub) && v.Sub[i].Data.Data == "block"; {
+							if getNames(v.Sub[i])[0] == "else" {
+								i++
+							} else {
+								break
+							}
+						}
 						
 						if i < len(v.Sub) {
 							i--
diff --git a/src/texec/libtnsl.go b/src/texec/libtnsl.go
index 581d15e..bb0ce7d 100644
--- a/src/texec/libtnsl.go
+++ b/src/texec/libtnsl.go
@@ -176,8 +176,11 @@ func tfile_close(file TVariable) {
 // tnsl.io.File.read
 func tfile_read(file TVariable) TVariable {
 	b := []byte{1}
-	(file.Data).(*os.File).Read(b)
-	return TVariable{tCharp, b[0]}
+	_, err := (file.Data).(*os.File).Read(b)
+	if err != nil {
+		return TVariable{tInt, -1}
+	}
+	return TVariable{tInt, int(b[0])}
 }
 
 // tnsl.io.File.write
diff --git a/src/tparse/tree-value.go b/src/tparse/tree-value.go
index 25982ff..7a0148a 100644
--- a/src/tparse/tree-value.go
+++ b/src/tparse/tree-value.go
@@ -69,27 +69,30 @@ var ORDER = map[string]int{
 	"!|": 6,
 	"!^": 6,
 
+	// Truthy equality
+	"==": 7,
+	"!==": 7,
+
 	// Boolean and
-	"&&": 7,
+	"&&": 8,
 	// Boolean or
-	"||": 7,
-	// Truthy equals
-	"==": 7,
+	"||": 8,
 
 	// Greater than
-	">": 7,
+	">": 8,
 	// Less than
-	"<": 7,
+	"<": 8,
 
-	"!&&": 7,
-	"!||": 7,
-	"!==": 7,
+	"!>": 8,
+	"!<": 8,
+	">==": 8,
+	"<==": 8,
 
-	"!>": 7,
-	"!<": 7,
+	"!&&": 8,
+	"!||": 8,
 
 	// Assignement
-	"=": 8,
+	"=": 9,
 }
 
 // Works? Please test. 
-- 
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