Implement naive deduction of table name from filename

Author: RohitAwate

compiler/compiler.go

@@ -41,7 +41,7 @@ func NewCompiler(filepath string) (*Compiler, error) {
 	}
 
 	tableContext := map[string]*table.Table{
-		"superhero": &csvTable, // TODO: Remove hardcoded value
+		table.GetTableNameFromFile(filepath): &csvTable,
 	}
 	return &Compiler{tableContext: tableContext}, nil
 }

table/utils.go

@@ -2,8 +2,18 @@ package table
 
 import (
 	"fmt"
+	"strings"
 )
 
 func getColumnAlias(index uint) string {
 	return fmt.Sprintf("Col_%d", index)
 }
+
+func GetTableNameFromFile(filename string) string {
+	// TODO: Make this much, much smarter
+	// - Handle multiple extensions: data.txt.csv > data
+	// - Handle fully qualified paths: /home/rohit/project/data.csv > data
+
+	dotLocation := strings.LastIndex(filename, ".")
+	return filename[:dotLocation]
+}