From 66f37971e92ee9a573d1dd2fb82d5120e6ccb0ed Mon Sep 17 00:00:00 2001
From: Andreas Rumpf <rumpf_a@web.de>
Date: Sat, 9 Jul 2016 00:28:14 +0200
Subject: [PATCH] undocumented feature: JS backend: unit and group separators
 generate hash and at symbols

---
 compiler/jsgen.nim | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/compiler/jsgen.nim b/compiler/jsgen.nim
index 09eafe128..744e190cd 100644
--- a/compiler/jsgen.nim
+++ b/compiler/jsgen.nim
@@ -1234,10 +1234,18 @@ proc genPatternCall(p: PProc; n: PNode; pat: string; typ: PType;
       genOtherArg(p, n, j, typ, generated, r)
       inc j
       inc i
+    of '\31':
+      # unit separator
+      add(r.res, "#")
+      inc i
+    of '\29':
+      # group separator
+      add(r.res, "@")
+      inc i
     else:
       let start = i
       while i < pat.len:
-        if pat[i] notin {'@', '#'}: inc(i)
+        if pat[i] notin {'@', '#', '\31', '\29'}: inc(i)
         else: break
       if i - 1 >= start:
         add(r.res, substr(pat, start, i - 1))