Use strpos (much faster than preg_match) to determine if a char is a white space
Use strpos (much faster than preg_match) to determine if a char is a white space

White space characters are defined by the PCRELib as:
- LF (dec 10 = hex \x0a = char "\n")
- HT (dec 9 = hex \x09 = char "\t")
- VT (dec 11 = hex \x0b = char "\v")
- FF (dec 12 = hex \x0c = char "\f")
- CR (dec 13 = hex \x0d = char "\r")
- space (dec 32 = hex \x20 = char " ")

Reference:
https://github.com/php/php-src/blob/master/ext/pcre/pcrelib/doc/pcre.txt#L5203-L5204

oyejorge/less.php,oyejorge/less.php,oyejorge/less.php