Re: Mysterious error when referencing functions
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- Subject: Re: Mysterious error when referencing functions
- From: "Sebastian Rasmussen" <sebras@...>
- Date: 2002年5月23日 10:25:24 +0200
With changing two 'typo', it didn't give any error for me.
Nope, still mysterious. :-)
I got my code to work with your changes, but the code I sent was just an
abstraction of the real code I have problems with.I thought the problem
stemmed from my erroneous referencing of functions, but maybe it doesn't
I'm trying to build a small wikiwiki in lua. The problem is when I try to
convert the wiki-markup to HTML. Parts of my real wikiwiki code has been
attached below. The first gsub() in htmlize() works like a charm, printing
the wiki-links contained in the raw text. Unfortunately the second gsub(),
which is supposed to supply each wiki-link to htmlize_link(), converting it
to HTML, doesn't work equally well. The captured part of the text is never
propagated to the htmlize_link(). Why is that?
Oh, and I'm sorry if I pollute some developer-only list, but as far as I can
tell this list is also suitable for lua-users...?
/ Sebastian Rasmussen
function page(data)
print("page() called")
local instance = {}
instance.Data = data
-- Convert wiki-link to HTML tags
function instance:htmlize_link(link)
print("page:htmlize_link(", link, ") called")
if link == nil then
print("page:htmlize_link() exited with error (link was nil)")
return nil
end
print("page:htmlize_link() exited successfully")
return "<a href=\"/pages/"..link.."\">"..link.."</a>"
end
-- Convert all wiki-links to appropriate HTML-tags.
-- Everything enclosed within [] is considered to be a link.
function instance:htmlize()
print("page:htmlize() called")
if self.Data == nil then
print("page:htmlize() exited with error (data was nil)")
return nil
end
-- The first gsub() below is for debugging purposes only
print("Wiki-links:")
gsub(self.Data, "%[([^]]*)%]", print)
-- This is the statement that doesn't work
self.Data = gsub(self.Data, "%[([^]]*)%]", self.htmlize_link)
print("page:htmlize() exited successfully")
return 1
end
print("page() constructed successfully")
return instance
end
function main()
local page = page("This is some [Text] to test [Wikification] of raw
text")
page:htmlize()
print(page.Data)
end
main()
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