note 116630 deleted from function.php-strip-whitespace by salathe
| From: | salathe@php.net | Date: | Fri, 06 Feb 2015 13:37:14 +0000 |
| Subject: | note 116630 deleted from function.php-strip-whitespace by salathe | ||
| References: | 1 | Groups: | php.notes |
| Request: | Send a blank email to php-notes+get-201643@lists.php.net to get a copy of this message | ||
Note Submitter: Jeroen J
----
Hello there,
I would like to share a regex (PHP) sniplet of code
I wrote (2012) for myself it is also being used in the
Yerico sriptmerge plugin for joomla marked as simple code..
To compress javascript code and remove all comments from it.
It also works with mootools It is fast
(in compairison to other PHP solutions) and does not damage the
Javascript it self and it resolves lots of comment removal isseus.
//START Remove comments.
$buffer = str_replace('/// ', '///', $buffer);
$buffer = str_replace(',//', ', //', $buffer);
$buffer = str_replace('{//', '{ //', $buffer);
$buffer = str_replace('}//', '} //', $buffer);
$buffer = str_replace('*//*', '*/ /*', $buffer);
$buffer = str_replace('/**/', '/* */', $buffer);
$buffer = str_replace('*///', '*/ //', $buffer);
$buffer = preg_replace("/\/\/.*\n\/\/.*\n/", "", $buffer);
$buffer = preg_replace("/\s\/\/\".*/", "", $buffer);
$buffer = preg_replace("/\/\/\n/", "\n", $buffer);
$buffer = preg_replace("/\/\/\s.*.\n/", "\n \n", $buffer);
$buffer = preg_replace('/\/\/w[^w].*/', '', $buffer);
$buffer = preg_replace('/\/\/s[^s].*/', '', $buffer);
$buffer = preg_replace('/\/\/\*\*\*.*/', '', $buffer);
$buffer = preg_replace('/\/\/\*\s\*\s\*.*/', '', $buffer);
$buffer = preg_replace('/[^\*]\/\/[*].*/', '', $buffer);
$buffer = preg_replace('/([;])\/\/.*/', '$1', $buffer);
$buffer = preg_replace('/((\r)|(\n)|(\R)|([^0]1)|([^\"]\s*\-))(\/\/)(.*)/',
'$1', $buffer);
$buffer =
preg_replace("/([^\*])[\/]+\/\*.*[^a-zA-Z0-9\s\-=+\|!@#$%^&()`~\[\]{};:\'\",<.>?]/",
"$1", $buffer);
$buffer = preg_replace("/\/\*/", "\n/*dddpp", $buffer);
$buffer =
preg_replace('/((\{\s*|:\s*)[\"\']\s*)(([^\{\};\"\']*)dddpp)/','$1$4',
$buffer);
$buffer = preg_replace("/\*\//", "xxxpp*/\n", $buffer);
$buffer =
preg_replace('/((\{\s*|:\s*|\[\s*)[\"\']\s*)(([^\};\"\']*)xxxpp)/','$1$4',
$buffer);
$buffer = preg_replace('/([\"\'])\s*\/\*/', '$1/*', $buffer);
$buffer = preg_replace('/(\n)[^\'"]?\/\*dddpp.*?xxxpp\*\//s', '',
$buffer);
$buffer = preg_replace('/\n\/\*dddpp([^\s]*)/', '$1', $buffer);
$buffer = preg_replace('/xxxpp\*\/\n([^\s]*)/', '*/$1', $buffer);
$buffer = preg_replace('/xxxpp\*\/\n([\"])/', '$1', $buffer);
$buffer = preg_replace('/(\*)\n*\s*(\/\*)\s*/', '$1$2$3', $buffer);
$buffer = preg_replace('/(\*\/)\s*(\")/', '$1$2', $buffer);
$buffer = preg_replace('/\/\*dddpp(\s*)/', '/*', $buffer);
$buffer = preg_replace('/\n\s*\n/', "\n", $buffer);
$buffer =
preg_replace("/([^\'\"]\s*)<!--.*-->(?!(<\/div>)).*/","$1",
$buffer);
$buffer =
preg_replace('/([^\n\w\-=+\|!@#$%^&*()`~\[\]{};:\'",<.>\/?\\\\])(\/\/)(.*)/',
'$1', $buffer);
//END Remove comments.
//START Remove all whitespaces
$buffer = preg_replace('/\s+/', ' ', $buffer);
$buffer =
preg_replace('/\s*(?:(?=[=\-\+\|%&\*\)\[\]\{\};:\,\.\<\>\!\@\#\^`~]))/',
'', $buffer);
$buffer =
preg_replace('/(?:(?<=[=\-\+\|%&\*\)\[\]\{\};:\,\.\<\>\?\!\@\#\^`~]))\s*/',
'', $buffer);
$buffer = preg_replace('/([^a-zA-Z0-9\s\-=+\|!@#$%^&*()`~\[\]
{};:\'",<.>\/?])\s+([^a-zA-Z0-9\s\-=+\|!@#$%^&*()`~\[\]
{};:\'",<.>\/?])/', '$1$2', $buffer);
//END Remove all whitespaces
I am off coarse not a programmer just wanted to
make the plugin work like i wanted it to....