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-rw-r--r--src/lex.lisp3
1 files changed, 3 insertions, 0 deletions
diff --git a/src/lex.lisp b/src/lex.lisp
index eea0709..d5c77a1 100644
--- a/src/lex.lisp
+++ b/src/lex.lisp
@@ -54,6 +54,9 @@ Comments start with a semi-colon ';' and all tokens after are ignored."
((char= chr #\:) 'colon)
((char= chr #\$) 'dollar)
+ ((char= chr #\+) 'plus)
+ ((char= chr #\-) 'minus)
+
((digit-char-p chr)
(read-immediate chr))