Re: Narcissus in Lua (Javascript parser)
[
Date Prev][
Date Next][
Thread Prev][
Thread Next]
[
Date Index]
[
Thread Index]
- Subject: Re: Narcissus in Lua (Javascript parser)
- From: Jonathan Castello <twisolar@...>
- Date: 2010年10月15日 14:02:22 -0700
On Fri, Oct 15, 2010 at 1:53 PM, Javier Guerra Giraldez
<javier@guerrag.com> wrote:
> but the syntax is certainly ugly.
Yep. I spent some time removing the ugly H prefix and the extra nil's,
and this is what I came up with:
----
local _print = print
setfenv(1, setmetatable({}, {
__index = function(env, tag)
local func = function(attrs, c, ...)
if type(attrs) == "string" then
if c then
c = table.concat({attrs, c, ...})
else
c = attrs
end
attrs = nil
elseif c then
c = table.concat({c, ...})
end
local o = {('<%s'):format(tag)}
if attrs then
for k,v in pairs(attrs) do
table.insert(o, (' %s="%s"'):format(k,v))
end
end
if c then
table.insert(o, '>')
table.insert(o, c)
table.insert(o, ('</%s>'):format(tag))
else
table.insert(o, ' />')
end
table.insert (o, '\n')
return table.concat(o)
end
rawset(env, tag, func)
return func
end,
}))
_print(
html(
head(
title('page title')),
body(
div({id = 'header', class = 'banner'},
p('header div'))
div({id = 'main'},
p('main part'),
img({src = 'lolcats/purr.jpg', alt = 'lol'}),
a({href = 'somewhere/else.html'}, 'lets go')),
div({id = 'footer'},
p('the end'))))
)
----
~Jonathan