/**
* The main processing function called by Scaffold. MUST return $css!
*
* @author Anthony Short
* @return $css string
*/
public static function parse()
{
$xml = CSS::to_xml();
$css = "";
foreach ($xml->rule as $key => $value) {
$css .= self::parse_rule($value);
}
CSS::$css = CSS::convert_entities('decode', $css);
}
/**
* This function occurs before everything else
*
* @author Anthony Short
* @param $css
*/
public static function parse()
{
# Find all the @server imports
CSS::$css = self::server_import(CSS::$css);
}
/**
* Replaces a matched string with another matched string.
* Can be either a direct string replace or a regular expression.
*
* @author Anthony Short
* @param $match The string to match
* @param $replace Replace the match with this string
* @param $regex Is it a regular expression
* @return null
*/
public static function replace($match, $replace, $regex = false)
{
if ($regex === true) {
if (self::$css = preg_replace($match, $replace, self::$css)) {
return true;
}
} else {
if (self::$css = str_replace($match, $replace, self::$css)) {
return true;
}
}
FB::log("CSS::replace - nothing to replace: " . $match);
}
/**
* Parse the CSS
*
* @return string - The processes css file as a string
* @author Anthony Short
**/
public static function parse_css()
{
# If the cache is stale or doesn't exist
if (self::config('core.cache.mod_time') <= self::config('core.request.mod_time')) {
# Start the timer
Benchmark::start("parse_css");
# Compress it before parsing
CSS::compress(CSS::$css);
# Import CSS files
Import::parse();
if (self::config('core.auto_include_mixins') === true) {
# Import the mixins in the plugin/module folders
Mixins::import_mixins('framework/mixins');
}
# Parse our css through the plugins
foreach (self::$plugins as $plugin) {
call_user_func(array($plugin, 'import_process'));
}
# Compress it before parsing
CSS::compress(CSS::$css);
# Parse the constants
Constants::parse();
foreach (self::$plugins as $plugin) {
call_user_func(array($plugin, 'pre_process'));
}
# Parse the @grid
Layout::parse_grid();
# Replace the constants
Constants::replace();
# Parse @for loops
Iteration::parse();
foreach (self::$plugins as $plugin) {
call_user_func(array($plugin, 'process'));
}
# Compress it before parsing
CSS::compress(CSS::$css);
# Parse the mixins
Mixins::parse();
# Find missing constants
Constants::replace();
# Compress it before parsing
CSS::compress(CSS::$css);
foreach (self::$plugins as $plugin) {
call_user_func(array($plugin, 'post_process'));
}
# Parse the expressions
Expression::parse();
# Parse the nested selectors
NestedSelectors::parse();
# Convert all url()'s to absolute paths if required
if (self::config('core.absolute_urls') === true) {
CSS::convert_to_absolute_urls();
}
# Replaces url()'s that start with ~ to lead to the CSS directory
CSS::replace_css_urls();
# Add the extra string we've been storing
CSS::$css .= CSS::$append;
# If they want to minify it
if (self::config('core.minify_css') === true) {
Minify::compress();
} else {
CSS::pretty();
}
# Formatting hook
foreach (self::$plugins as $plugin) {
call_user_func(array($plugin, 'formatting_process'));
}
# Validate the CSS
if (self::config('core.validate') === true) {
Validate::check();
}
# Stop the timer...
Benchmark::stop("parse_css");
if (self::config('core.show_header') === TRUE) {
CSS::$css = "/* Processed by CSScaffold on " . gmdate('r') . " in " . Benchmark::get("parse_css", "time") . " seconds */\n\n" . CSS::$css;
}
# Write the css file to the cache
self::cache_write(CSS::$css);
# Output process hook for plugins to display views.
# Doesn't run in production mode.
if (!IN_PRODUCTION) {
foreach (array_merge(self::$plugins, self::$modules) as $plugin) {
call_user_func(array($plugin, 'output'));
}
}
}
}
public static function compress()
{
self::load_library('Minify_Compressor');
CSS::$css = Minify_CSS_Compressor::process(CSS::$css);
}
public static function post_process()
{
CSS::$css = self::parse_expressions();
}