Understanding on what lit and src behaviors #41
Description
@natefaubion, continuing my chat in slack, and trying to avoid slack archive.. i'll put my reply in here.
Here is the guide said:
``` -- | `lit x` will match exactly the path component `x`.
-- | For example, `lit "x"` matches `/x`.
lit :: String -> f Unit
-- | `str` matches any path string component.
-- | For example, `str` matches `/foo` as `"foo"`.
str :: f String```
I just want to correct my logic in how purescript-routing act. So, my understanding is, the library trying to match the uri address with the pattern we describe in routing :: Match a function. How it works is it stripped the uri address (let say mysite.com/#/foo/bar/FooBar) until the # sign.
So, we will have #/foo/bar/FooBar, which in this case, if we use the above guide, lit "x" matches "/x" and "str" matches "/foo" as "foo", then the stripped address can be matched with this:
#/foo /bar /FooBar
(lit "foo") (lit "bar") (lit "FooBar")
but instead, i have to do this:
#/foo /bar /FooBar
(lit "" <* lit "foo") (lit "" <*lit "bar") (lit "" <* lit "FooBar")
and if we see the guide again, it looks like it is "//foo//bar//FooBar". I know that we use <* or *> that supposed to remove the lit "". But why can't we just use the former example one??? I mean why we can't just write it :
FooBarPage <$ (lit "foo" *> lit "bar" *> lit "FooBar" )
Instead of:
FooBarPage <$ (lit "" *> lit "foo" *> lit "" *> lit "bar" *> lit "" *> lit "FooBar" )
the same goes if we have FooBarPage String, by using the guide again, we supposed to write:
FooBarPage <$> (lit "foo" *> lit "bar" *> lit "" *> lit "FooBar" )
instead of
FooBarPage <$ (lit "" *> lit "foo" *> lit "" *> lit "bar" *> lit "FooBar" )
Right? I am sorry if my understanding is not what the guide supposed to mean. But from beginner pov (like me), reading the source's comment explanation is very helpful (well i have to try and error by building it though for better understanding).
Anyway, this is just me trying to visualise what the lib do.