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-rw-r--r--mparser.py2
1 files changed, 1 insertions, 1 deletions
diff --git a/mparser.py b/mparser.py
index b7fb519..e8f20a5 100644
--- a/mparser.py
+++ b/mparser.py
@@ -41,7 +41,7 @@ class Lexer:
# Need to be sorted longest to shortest.
('ignore', re.compile(r'[ \t]')),
('id', re.compile('[_a-zA-Z][_0-9a-zA-Z]*')),
- ('number', re.compile(r'\d+')),
+ ('number', re.compile(r'-?\d+')),
('eol_cont', re.compile(r'\\\n')),
('eol', re.compile(r'\n')),
('multiline_string', re.compile(r"'''(.|\n)*?'''", re.M)),