From 92fdd0e34e1fddf3cc85c3e0691d4fd1196bc382 Mon Sep 17 00:00:00 2001
From: Mikhail Osipov <mike.osipov@gmail.com>
Date: Thu, 10 Sep 2020 00:18:05 +0300
Subject: expandable variable syntax

---
 pkg/server/echo.go | 14 +++++++++++++-
 1 file changed, 13 insertions(+), 1 deletion(-)

(limited to 'pkg/server/echo.go')

diff --git a/pkg/server/echo.go b/pkg/server/echo.go
index 0387a3e..2ac54b9 100644
--- a/pkg/server/echo.go
+++ b/pkg/server/echo.go
@@ -5,7 +5,19 @@ import (
 )
 
 func echo(r *request) {
-	r.Print(strings.Join(r.args, " "))
+	expand := false
+	args := r.args
+
+	if r.argc > 0 && r.args[0] == "-e" {
+		expand = true
+		args = args[1:]
+	}
+
+	s := strings.Join(args, " ")
+	if expand {
+		s = r.c.s.env.Expand(s)
+	}
+	r.Print(s)
 }
 
 func init() {
-- 
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