LPEG 're' module self-test fails

[Nick Gammon <nick@...>]

On this page: http://www.inf.puc-rio.br/~roberto/lpeg/re.html

there is a self-test for the 're' module grammar (near the end). In particular:

  print(re.match(p, p))   -- a self description must match itself

However testing with Lua 5.1.5, LPEG 1.0.0 and re 1.44, the test fails (it prints nil).

After extensive experimentation, it appears that changing the rule:

	exp             <- S (alternative / grammar)

to:

	exp 		<- S (grammar / alternative)

fixes the problem. Does this seem valid? If so, could the web page be updated please?

- Nick