view tests/option.ur @ 2142:3288e3c9948b

Fix XML indentation in Emacs mode The return value of MATCH-STRING is a string. At least on Emacs 25, the comparisons between string and character with EQUAL could never succeed, and so the cases for matching braces were never triggered. GET-TEXT-PROPERTY may return a list rather than an atom (for example, on long lines with whitespace-mode turned on), and this broke the heuristic of looking for the tag face in previous text.
author Julian Squires <julian@cipht.net>
date Mon, 04 May 2015 14:35:07 -0400
parents 77a28e7430bf
children
line wrap: on
line source
datatype option a = None | Some of a

val none_Hi : option string = None
val some_Hi = Some "Hi"
val none_some_Hi : option (option string) = None
val some_some_Hi = Some some_Hi

val show = fn x => case x of None => "None" | Some x => x

val show2 = fn x => case x of None => "None'" | Some x => show x

val page = fn x => return <html><body>
        {cdata (show x)}
</body></html>

val page2 = fn x => return <html><body>
        {cdata (show2 x)}
</body></html>

val main : unit -> transaction page = fn () => return <html><body>
        <li><a link={page none_Hi}>None1</a></li>
        <li><a link={page some_Hi}>Some1</a></li>
        <li><a link={page2 none_some_Hi}>None2</a></li>
        <li><a link={page2 some_some_Hi}>Some2</a></li>
</body></html>