Create (optional?) xpath preprocessor

[fprochazka]

Hi, the preprocessor by @paranoiq has very nice features, would you consider also creating preprocessor, or including parts if his in this lib? Some of the aliases are very nice, native xpath is very verbose.

[kaja47]

Well, I'm not too keen on rewriting XPaths with regexps.
But as of current master it's easy to plug in custom preprocessor.

$context = new MatcherContext(null, [], 'Symfony\Component\CssSelector\CssSelector::toXpath');

Matcher::multi('div.article > h2')->fromHtml($context);

On the other hand, I have complete XPath expression parser and it could be modified and used as a preprocessor.

[fprochazka]

Yeah, optionally :) You must admit some of those aliases are really nice. And I bet you could come up with others.