diff options
| author |  Adam Chlipala <adamc@hcoop.net> | 2009-11-25 08:52:32 -0500 |
|---|---|---|
| committer | Adam Chlipala <adamc@hcoop.net> | 2009-11-25 08:52:32 -0500 |
| commit | 92ef621511425ae4ffb2873f4ce9d31ad0f0ed5d (patch) | |
| tree | c04288b7d24fcc901df4cf0fb8aa42263d3f585f /src/urweb.grm | |
| parent | c88ae0814f322f82e8daf53b19086326bbca0327 (diff) | |
Refactor compile functions; allow empty tag contents
Diffstat (limited to 'src/urweb.grm')
| -rw-r--r-- | src/urweb.grm | 18 |
1 files changed, 12 insertions, 6 deletions
diff --git a/src/urweb.grm b/src/urweb.grm index 38d7d60d..2251dde7 100644 --- a/src/urweb.grm +++ b/src/urweb.grm @@ -289,6 +289,7 @@ fun patType loc (p : pat) = | rexp of (con * exp) list | xml of exp | xmlOne of exp + | xmlOpt of exp | tag of (string * exp) * exp | tagHead of string * exp | bind of string * con option * exp @@ -1294,6 +1295,11 @@ xml : xmlOne xml (let end) | xmlOne (xmlOne) +xmlOpt : xml (xml) + | (EApp ((EVar (["Basis"], "cdata", Infer), dummy), + (EPrim (Prim.String ""), dummy)), + dummy) + xmlOne : NOTAGS (EApp ((EVar (["Basis"], "cdata", Infer), s (NOTAGSleft, NOTAGSright)), (EPrim (Prim.String NOTAGS), s (NOTAGSleft, NOTAGSright))), s (NOTAGSleft, NOTAGSright)) @@ -1318,25 +1324,25 @@ xmlOne : NOTAGS (EApp ((EVar (["Basis"], "cdata", Infer) (EApp (#2 tag, cdata), pos) end) - | tag GT xml END_TAG (let + | tag GT xmlOpt END_TAG (let val pos = s (tagleft, GTright) val et = tagIn END_TAG in if #1 (#1 tag) = et then if et = "form" then (EApp ((EVar (["Basis"], "form", Infer), pos), - xml), pos) + xmlOpt), pos) else if et = "subform" then (EApp ((EDisjointApp (#2 (#1 tag)), pos), - xml), pos) + xmlOpt), pos) else if et = "subforms" then (EApp ((EDisjointApp (#2 (#1 tag)), pos), - xml), pos) + xmlOpt), pos) else if et = "entry" then (EApp ((EVar (["Basis"], "entry", Infer), pos), - xml), pos) + xmlOpt), pos) else - (EApp (#2 tag, xml), pos) + (EApp (#2 tag, xmlOpt), pos) else (if ErrorMsg.anyErrors () then () |