Refactoring Project

1 files changed, 52 insertions, 0 deletions

diff --git a/symbol.go b/symbol.go
new file mode 100755
index 0000000..f63bb8e
--- /dev/null
+++ b/symbol.go
@@ -0,0 +1,52 @@
+package main
+
+import (
+	"bufio"
+	"os"
+	"regexp"
+	"strings"
+)
+
+// Map for labels and their addresses
+var labels map[string]uint = make(map[string]uint)
+
+func LabelFind(path string) {
+	file, err := os.Open(path)
+	if err != nil {
+		panic(err)
+	}
+	defer file.Close()
+
+	input := bufio.NewScanner(file)
+
+	for i := 0; input.Scan(); i += 4 {
+		k := input.Text()
+		if k == "" {
+			i -= 4
+			continue
+		} else if k == ".text" || k == ".data" {
+			i += 4
+			continue
+		}
+		s, err := Parse(k)
+		if err != nil {
+			panic(err)
+		}
+
+		if len(s) == 1 && s[0] == "" {
+			i -= 4
+			continue
+		}
+
+		hasLabel, err := regexp.MatchString("^.*:", s[0])
+		if err != nil {
+			panic(err)
+		}
+		if hasLabel {
+			labels[strings.ReplaceAll(s[0], ":", "")] = uint(i)
+			if len(s) == 1 {
+				i -= 4
+			}
+		}
+	}
+}