do not allow negative values in parse_num()

4 years ago · 5b7f93bb9a
parent a2d846052e
commit 5b7f93bb9a
1 changed files with 3 additions and 0 deletions
--- a/src/img2pdf.py
+++ b/src/img2pdf.py
@ -2083,6 +2083,9 @@ def parse_num(num, name):
        except ValueError:
            msg = "%s is not a floating point number: %s" % (name, num)
            raise argparse.ArgumentTypeError(msg)
+    if num < 0:
+        msg = "%s must not be negative: %s" % (name, num)
+        raise argparse.ArgumentTypeError(msg)
    if unit == Unit.cm:
        num = cm_to_pt(num)
    elif unit == Unit.mm: