Description:
------------
Separation of the chapters of PCRE Pattern Syntax causes a lot of work to search for a specific pattern.

In a former version the chapter "Pattern Syntax" was one huge chapter.
http://php.net/manual/en/reference.pcre.pattern.syntax.php
Maybe a huge amount of information in one page is difficult to read, but now it's difficult to search for a specific syntax. 

As an example you want to know the meaning of (?: In one big chapter you can use the search function of the browser (Ctrl+F). But now one has to open each single page.

Even the general search function 
"search for [(?:  ] in the [online documentation]"
isn't helpful: no result.

Expected result:
----------------
Making again one big chapter isn't an option?
No? How about adding a very short form of the syntax to the list items in this page
http://php.net/manual/en/reference.pcre.pattern.syntax.php

i.e.

...
* Subpatterns: (), (?:, (?P<name>
...
* Back references: \n, (?P=name)
* Assertions: (?=, (?!, (?<=, (?<!
...