feat(binana): add tokens database

go/app/util/demangle.go

@@ -0,0 +1,49 @@
+package util
+
+import (
+	"bytes"
+	"fmt"
+	"os/exec"
+	"strings"
+)
+
+var demangle_cache = make(map[string]string)
+
+func demangle(str string) (demangled string, err error) {
+	var ok bool
+	if demangled, ok = demangle_cache[str]; ok {
+		return
+	}
+
+	var output bytes.Buffer
+	c := exec.Command("demumble", str)
+	c.Stdout = &output
+	c.Run()
+	if output.Len() == 0 {
+		err = fmt.Errorf("cannot demangle")
+		return
+	}
+	demangled = output.String()
+	demangled = strings.TrimSuffix(demangled, "\n")
+	if str == demangled {
+		err = fmt.Errorf("cannot demangle")
+		return
+	}
+	demangle_cache[str] = demangled
+	return
+}
+
+func looks_mangled(str string) bool {
+	if strings.HasPrefix(str, ".") {
+		return true
+	} else if strings.HasPrefix(str, "?") {
+		return true
+	} else if strings.HasPrefix(str, "_Z") {
+		return true
+	} else if len(str) > 0 && str[0] >= '0' && str[0] <= '9' {
+		return true
+	} else if strings.ContainsAny(str, "0123456789") && !strings.Contains(str, " ") {
+		return true
+	}
+	return false
+}