CSSJanus

Convert CSS stylesheets between left-to-right and right-to-left.

Basic usage

$rtlCss = CSSJanus::transform( $ltrCss );

Advanced usage

transform( $css, $swapLtrRtlInURL = false, $swapLeftRightInURL = false )

• $css (string) Stylesheet to transform
• $swapLtrRtlInURL (boolean) Swap 'ltr' and 'rtl' in URLs
• $swapLeftRightInURL (boolean) Swap 'left' and 'right' in URLs

Preventing flipping

Use a /* @noflip */ comment to protect a rule from being changed.

.rule1 {
  /* Will be converted to margin-right */
  margin-left: 1em;
}
/* @noflip */
.rule2 {
  /* Will be preserved as margin-left */
  margin-left: 1em;
}

Port

This is a PHP port of the Node.js implementation of CSSJanus.

Feature requests and bugs related to the actual CSS transformation or test cases of it, should be submitted upstream at https://github.com/cssjanus/cssjanus.

Upstream releases will be ported here.