The goal of this diff is to clean up the current work-in-progress and check
it in so that others may contribute if they have time.
The program currently outputs the HHVM tree as well as the xhpast-like
json, for ease of debugging. There is a little helper program jsonpretty.py
to make the trees more readable, e.g.
_build/dbg/hphp/util/parser/xhpast/xhpast2 <some php file> | hphp/util/parser/xhpast/xhpast2/jsonpretty.py
XML comment syntax for XHP is one of the top wishlist items within the UIE group (+ some other people).
Currently, the only way to have comments inside XHP blocks is to use expressions and block comments, e.g.
<div>{/* comment */}</div>
After this change, you can use the more familiar syntax. This syntax is limited to XHP child contexts:
// Only single-line, doc, block comments work outside XHP
$xhp =
<div>
<!--XML comments only work within XHP children contexts-->
</div>;
Based on http://www.w3.org/TR/REC-xml/#sec-comments - except we ignore the rule about double hyphens ('--') within a comment because we don't care about SGML.
A shebang allow a script to be run as an executable on UNIX
systems. PHP allows shebangs, but Hack does not. This
changeset allows Hack to have shebangs like in PHP.
A shebang allow a script to be run as an executable on UNIX
systems. PHP allows shebangs, but Hack does not. This
changeset allows Hack to have shebangs like in PHP.
Sanjeev Singh