晋太元中,武陵人捕鱼为业。缘溪行,忘路之远近。忽逢桃花林,夹岸数百步,中无杂树,芳草鲜美,落英缤纷。渔人甚异之,复前行,欲穷其林。 林尽水源,便得一山,山有小口,仿佛若有光。便舍船,从口入。初极狭,才通人。复行数十步,豁然开朗。土地平旷,屋舍俨然,有良田、美池、桑竹之属。阡陌交通,鸡犬相闻。其中往来种作,男女衣着,悉如外人。黄发垂髫,并怡然自乐。 见渔人,乃大惊,问所从来。具答之。便要还家,设酒杀鸡作食。村中闻有此人,咸来问讯。自云先世避秦时乱,率妻子邑人来此绝境,不复出焉,遂与外人间隔。问今是何世,乃不知有汉,无论魏晋。此人一一为具言所闻,皆叹惋。余人各复延至其家,皆出酒食。停数日,辞去。此中人语云:“不足为外人道也。”(间隔 一作:隔绝) 既出,得其船,便扶向路,处处志之。及郡下,诣太守,说如此。太守即遣人随其往,寻向所志,遂迷,不复得路。 南阳刘子骥,高尚士也,闻之,欣然规往。未果,寻病终。后遂无问津者。
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<?php
namespace W3TC;
class Minify_Extract {
/**
* Extracts JS files from content
* w3tc-url-escaping: When rendered, URLs need to be escaped via
* htmlspecialchars instead of esc_attr to not change the way it is encoded
* in source html. E.g. html contains a&b Using esc_attr that will not
* double escape it as a result config value will be a&b.
*
* @param string $content
* @return array
*/
static public function extract_js( $content ) {
$matches = null;
$files = array();
$content = preg_replace( '~<!--.*?-->~s', '', $content );
if ( preg_match_all( '~<script\s+[^<>]*src=["\']?([^"\']+)["\']?[^<>]*>\s*</script>~is',
$content, $matches ) ) {
$files = $matches[1];
}
$files = array_values( array_unique( $files ) );
return $files;
}
/**
* Extract CSS files from content
*
* @param string $content
* @return array
*/
static public function extract_css( $content ) {
$content = preg_replace( '~<!--.*?-->~s', '', $content );
$tags_files = array();
$matches = null;
if ( preg_match_all( '~<link\s+([^>]+)/?>(.*</link>)?~Uis', $content,
$matches, PREG_SET_ORDER ) ) {
foreach ( $matches as $match ) {
$attrs = array();
$attr_matches = null;
if ( preg_match_all( '~(\w+)=["\']([^"\']*)["\']~', $match[1],
$attr_matches, PREG_SET_ORDER ) ) {
foreach ( $attr_matches as $attr_match ) {
$attrs[$attr_match[1]] = trim( $attr_match[2] );
}
}
if ( isset( $attrs['href'] ) && isset( $attrs['rel'] ) &&
stristr( $attrs['rel'], 'stylesheet' ) !== false &&
( !isset( $attrs['media'] ) || stristr( $attrs['media'], 'print' ) === false ) ) {
$tags_files[] = array( $match[0], $attrs['href'] );
}
}
}
if ( preg_match_all( '~@import\s+(url\s*)?\(?["\']?\s*([^"\'\)\s]+)\s*["\']?\)?[^;]*;?~is',
$content, $matches, PREG_SET_ORDER ) ) {
foreach ( $matches as $match )
$tags_files[] = array( $match[0], $match[2] );
}
return $tags_files;
}
}