From 6af779121c0124291b52102cf646ea4430c5226f Mon Sep 17 00:00:00 2001
From: bnewbold <bnewbold@robocracy.org>
Date: Mon, 25 Apr 2016 17:36:12 -0400
Subject: rust: allow digits in identifiers (after 1st char)

---
 rust/spectrum.rs | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/rust/spectrum.rs b/rust/spectrum.rs
index c5ebad3..15c1f7b 100644
--- a/rust/spectrum.rs
+++ b/rust/spectrum.rs
@@ -63,8 +63,8 @@ fn is_valid_identifier(s: &str) -> bool {
     if s.starts_with("-") || s.ends_with("-") {
         return false;
     }
-    for c in s.chars() {
-        if !(c.is_alphabetic() || c == '-') {
+    for (i, c) in s.chars().enumerate() {
+        if !(c.is_alphabetic() || c == '-' || (c.is_numeric() && i > 0)) {
             return false;
         }
     }
-- 
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