Mercurial > urweb

changeset 1630:4798ad652c94

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Stop [read] from raising an exception for invalid [int] strings
author Adam Chlipala <adam@chlipala.net>
date Sun, 04 Dec 2011 15:13:53 -0500
parents 438561303d02
children 747f94ac5fc2
files lib/js/urweb.js tests/parseInt.ur
diffstat 2 files changed, 10 insertions(+), 1 deletions(-) [+]
line wrap: on
line diff
--- a/lib/js/urweb.js	Sun Dec 04 14:40:12 2011 -0500
+++ b/lib/js/urweb.js	Sun Dec 04 15:13:53 2011 -0500
@@ -972,7 +972,7 @@
     if (s == "0")
         return s;
     else
-        er("Can't parse int: " + s);
+        return {};
 }
 
 function pi(s) {
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/tests/parseInt.ur	Sun Dec 04 15:13:53 2011 -0500
@@ -0,0 +1,9 @@
+fun main () : transaction page =
+    s <- source "";
+    return <xml><body>
+      <ctextbox source={s}/>
+      <button onclick={n <- get s;
+                       case read n of
+                           None => alert "Invalid"
+                         | Some n => alert (show (n + 1))}/>
+    </body></xml>