/[pcre]/code/trunk/doc/pcrepattern.3
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revision 235 by ph10, Tue Sep 11 11:39:14 2007 UTC revision 246 by ph10, Fri Sep 14 10:22:03 2007 UTC
# Line 89  this can be changed; see the description Line 89  this can be changed; see the description
89  .\" </a>  .\" </a>
90  "Newline sequences"  "Newline sequences"
91  .\"  .\"
92  below.  below. A change of \eR setting can be combined with a change of newline
93    convention.
94  .  .
95  .  .
96  .SH "CHARACTERS AND METACHARACTERS"  .SH "CHARACTERS AND METACHARACTERS"
# Line 426  recognized. Line 427  recognized.
427  .P  .P
428  It is possible to restrict \eR to match only CR, LF, or CRLF (instead of the  It is possible to restrict \eR to match only CR, LF, or CRLF (instead of the
429  complete set of Unicode line endings) by setting the option PCRE_BSR_ANYCRLF  complete set of Unicode line endings) by setting the option PCRE_BSR_ANYCRLF
430  either at compile time or when the pattern is matched. This can be made the  either at compile time or when the pattern is matched. (BSR is an abbrevation
431  default when PCRE is built; if this is the case, the other behaviour can be  for "backslash R".) This can be made the default when PCRE is built; if this is
432  requested via the PCRE_BSR_UNICODE option. It is also possible to specify these  the case, the other behaviour can be requested via the PCRE_BSR_UNICODE option.
433  settings by starting a pattern string with one of the following sequences:  It is also possible to specify these settings by starting a pattern string with
434    one of the following sequences:
435  .sp  .sp
436    (*BSR_ANYCRLF)   CR, LF, or CRLF only    (*BSR_ANYCRLF)   CR, LF, or CRLF only
437    (*BSR_UNICODE)   any Unicode newline sequence    (*BSR_UNICODE)   any Unicode newline sequence
# Line 438  These override the default and the optio Line 440  These override the default and the optio
440  they can be overridden by options given to \fBpcre_exec()\fP. Note that these  they can be overridden by options given to \fBpcre_exec()\fP. Note that these
441  special settings, which are not Perl-compatible, are recognized only at the  special settings, which are not Perl-compatible, are recognized only at the
442  very start of a pattern, and that they must be in upper case. If more than one  very start of a pattern, and that they must be in upper case. If more than one
443  of them is present, the last one is used.  of them is present, the last one is used. They can be combined with a change of
444  .P  newline convention, for example, a pattern can start with:
445    .sp
446      (*ANY)(*BSR_ANYCRLF)
447    .sp
448  Inside a character class, \eR matches the letter "R".  Inside a character class, \eR matches the letter "R".
449  .  .
450  .  .
# Line 2177  Cambridge CB2 3QH, England. Line 2182  Cambridge CB2 3QH, England.
2182  .rs  .rs
2183  .sp  .sp
2184  .nf  .nf
2185  Last updated: 11 September 2007  Last updated: 14 September 2007
2186  Copyright (c) 1997-2007 University of Cambridge.  Copyright (c) 1997-2007 University of Cambridge.
2187  .fi  .fi
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