diff options
| author |  Adam Chlipala <adamc@hcoop.net> | 2008-07-10 15:19:06 -0400 |
|---|---|---|
| committer | Adam Chlipala <adamc@hcoop.net> | 2008-07-10 15:19:06 -0400 |
| commit | 0c1f369955bcdfe949bb6793812ef8ead2963228 (patch) | |
| tree | 00f08400cf61ad8bb9241c337719fe98f0348eb9 | |
| parent | 81a4a8171274586428288bd7e75ea6721ca56e27 (diff) | |
Stringifying attributes
| -rw-r--r-- | lib/basis.lig | 4 | ||||
| -rw-r--r-- | src/mono_opt.sml | 20 | ||||
| -rw-r--r-- | src/monoize.sml | 13 | ||||
| -rw-r--r-- | tests/attrs.lac | 2 |
4 files changed, 35 insertions, 4 deletions
diff --git a/lib/basis.lig b/lib/basis.lig index cd106950..c0f39e65 100644 --- a/lib/basis.lig +++ b/lib/basis.lig @@ -28,3 +28,7 @@ val p : tag [] [Body] [Body] val b : tag [] [Body] [Body] val i : tag [] [Body] [Body] val font : tag [Size = int, Face = string] [Body] [Body] + + +val attrifyInt : int -> string +val attrifyFloat : float -> string diff --git a/src/mono_opt.sml b/src/mono_opt.sml index 2f98a9c7..c9cd5f84 100644 --- a/src/mono_opt.sml +++ b/src/mono_opt.sml @@ -52,7 +52,6 @@ fun exp e = EPrim (Prim.String (String.implode (rev chs))) end - | EStrcat ((EPrim (Prim.String s1), loc), (EPrim (Prim.String s2), _)) => let val s = @@ -65,8 +64,27 @@ fun exp e = in EPrim (Prim.String s) end + + | EStrcat ((EPrim (Prim.String s1), loc), (EStrcat ((EPrim (Prim.String s2), _), rest), _)) => + let + val s = + if size s1 > 0 andalso size s2 > 0 + andalso Char.isSpace (String.sub (s1, size s1 - 1)) + andalso Char.isSpace (String.sub (s2, 0)) then + s1 ^ String.extract (s2, 1, NONE) + else + s1 ^ s2 + in + EStrcat ((EPrim (Prim.String s), loc), rest) + end + + | EStrcat ((EStrcat (e1, e2), loc), e3) => + optExp (EStrcat (e1, (EStrcat (e2, e3), loc)), loc) + | _ => e +and optExp e = #1 (U.Exp.map {typ = typ, exp = exp} e) + val optimize = U.File.map {typ = typ, exp = exp, decl = decl} end diff --git a/src/monoize.sml b/src/monoize.sml index ab344a16..0b868d59 100644 --- a/src/monoize.sml +++ b/src/monoize.sml @@ -79,6 +79,15 @@ fun monoType env (all as (c, loc)) = val dummyExp = (L'.EPrim (Prim.Int 0), E.dummySpan) +fun attrifyExp (e, tAll as (t, loc)) = + case t of + L'.TFfi ("Basis", "string") => e + | L'.TFfi ("Basis", "int") => (L'.EFfiApp ("Basis", "attrifyInt", [e]), loc) + | L'.TFfi ("Basis", "float") => (L'.EFfiApp ("Basis", "attrifyFloat", [e]), loc) + | _ => (E.errorAt loc "Don't know how to encode attribute type"; + Print.eprefaces' [("Type", MonoPrint.p_typ MonoEnv.empty tAll)]; + dummyExp) + fun monoExp env (all as (e, loc)) = let fun poly () = @@ -140,13 +149,13 @@ fun monoExp env (all as (e, loc)) = val s = (L'.EPrim (Prim.String (String.concat ["<", tag])), loc) in - foldl (fn ((x, e, _), s) => + foldl (fn ((x, e, t), s) => let val xp = " " ^ lowercaseFirst x ^ "=\"" in (L'.EStrcat (s, (L'.EStrcat ((L'.EPrim (Prim.String xp), loc), - (L'.EStrcat (e, + (L'.EStrcat (attrifyExp (e, t), (L'.EPrim (Prim.String "\""), loc)), loc)), loc)), loc) diff --git a/tests/attrs.lac b/tests/attrs.lac index 0495c4eb..940971d4 100644 --- a/tests/attrs.lac +++ b/tests/attrs.lac @@ -1,5 +1,5 @@ val main = fn () => <html><body> - <font face="awesome">Welcome</font> + <font size=42 face="awesome">Welcome</font> </body></html> page main |