Doc #65890 [Opn]: PCRE escape sequence \R undocumented

Edit report at https://bugs.php.net/bug.php?id=65890&edit=1 ID: 65890 Updated by: cmb@php.net Reported by: krewecherl at gmail dot com Summary: PCRE escape sequence \R undocumented Status: Open Type: Documentation Problem Package: PCRE related PHP Version: Irrelevant Block user comment: N Private report: N New Comment: The \R escape sequence has been documented in the meantime[1], but the details are even more complex than reported in this ticket[2]. See also bug #62360. [1] <http://svn.php.net/viewvc?view=revision&revision=339182> [2] <https://nikic.github.io/2011/12/10/PCRE-and-newlines.html> Previous Comments: ------------------------------------------------------------------------ [2013-10-13 15:54:35] krewecherl at gmail dot com Description: ------------ This manual page on PCRE escape sequences http://www.php.net/manual/en/regexp.reference.escape.php is missing the \R (BSR, backslash-R) escape. One of the user comments mentions it, but not quite correctly. Whether \R matches only CR, NL, and CR+LF, or *any* Unicode line break sequence, depends on how the pcre extension is configured (flag: --enable-bsr-anycrlf), see the README in ext/pcre/pcrelib. The default mode is BSR_UNICODE, in which \R matches \r, \n, \r\n, U+0085, U+2028, and U+2029. I can confirm this for the default Ubuntu packages, but I don't have any information about other distributions/packages. In any case, the escape sequence should be documented. ------------------------------------------------------------------------ -- Edit this bug report at https://bugs.php.net/bug.php?id=65890&edit=1