Description:
------------
returns an error of 
Parse error: parse error, unexpected T_CONSTANT_ENCAPSED_STRING in C:\Documents and Settings\john\Desktop\ttms desktop\php\gui\Smarty_Compiler.class.php(288) : regexp code on line 2


Reproduce code:
---------------
$ldq = preg_quote('{', '!');
$rdq = preg_quote('}', '!');
$search = "!{$ldq}\*(.*?)\*{$rdq}|{$ldq}\s*literal\s*{$rdq}(.*?){$ldq}\s*/literal\s*{$rdq}|{$ldq}\s*php\s*{$rdq}(.*?){$ldq}\s*/php\s*{$rdq}!s";
$source_content = preg_replace($search.'e', "'"
                                       . '{' . 'php'
                                       . "' . str_repeat(\"\n\", substr_count('\\0', \"\n\")) .'"
                                       . '}'
                                       . "'",
                                       "a {literal}b{/literal}c{php}d;s{/php}e{* hello's *}");


Expected result:
----------------
a{php}c{php}e{php}

Actual result:
--------------
Parse error: parse error, unexpected T_CONSTANT_ENCAPSED_STRING in C:\Documents and Settings\john\Desktop\ttms desktop\php\index.php(17) : regexp code on line 2

Fatal error: Failed evaluating code: '{php' . str_repeat(" ", substr_count('{* hello''s *}', " ")) .'}' in C:\Documents and Settings\john\Desktop\ttms desktop\php\index.php on line 17