#175, #179, #135, #93, #183, #184, #191, fix broken html tests, fix broken --react-import-path

[nippur72]

This PR improves the parser for rt-scope as discussed in #175.

It's based on a regex, the improvement comes from scanning for as identifier; instead of just ; thus lowering the chances of picking a semicolon in the wrong place.

Of course there are still failing cases, but they are much less.

With this PR the following can be now parsed:

<div rt-scope="'as fast as possible' as message;';' as semicolon;'as' as as">
    {message}{semicolon}{as}
</div>

[nippur72]

With the latest commits:

• improved the regex used in the parser that now scans over quoted strings (both
  single and double quotes) taking into account escaped quotes (\" or \'). Now there should be no more failing cases for the rt-scope syntax (e.g. rt-scope="'x as id;' as id;" does compile correctly).
• fixed html tests that were not running after they were split from rt.valid.spec.js into rt-html-valid.js.

[nippur72]

This PR now implements also #135 with the new (optional) CLI option --create-element-alias.

If an alias is specified, it will be used in place of React.createElement() thus making shorter calls and helping the minifier.

Example of rt foo.rt --create-element-alias h

'use strict';
var h = require('react').createElement;
var _ = require('lodash');
module.exports = function () {
    return h('div', {}, h('span', {}, 'Hello'));
};

[nippur72]

This PR now fixes also an issue with -react-import-path when the path is different from react.

Regarding the --create-element-alias, now is possible to have a different function name than createElement (e.g. if using a different library than React like preact). Just add it after a comma:

rt foo.rt --react-import-path preact --create-element-alias h,h

will generate:

var h = require('preact').h;
module.exports = function () {
    return h('div', {}, h('span', {}, 'Hello'));
};

[nippur72]

this PR now implements also #93, #183 and #184 (see for discussion).

[nippur72]

this PR now fixes also #190

[nippur72]

...and #191

[idok]

Hi nino,
Can you split this PR so we can try and merge at least some of it?

[nippur72]

sure, I will split it into as small as possible PRs, though it might take a while since I have to do some reconciliation