/[pcre]/code/trunk/doc/pcreapi.3
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revision 227 by ph10, Tue Aug 21 15:00:15 2007 UTC revision 230 by ph10, Mon Sep 10 13:23:56 2007 UTC
# Line 1218  pattern. Line 1218  pattern.
1218  .P  .P
1219  When PCRE_NEWLINE_CRLF, PCRE_NEWLINE_ANYCRLF, or PCRE_NEWLINE_ANY is set, and a  When PCRE_NEWLINE_CRLF, PCRE_NEWLINE_ANYCRLF, or PCRE_NEWLINE_ANY is set, and a
1220  match attempt for an unanchored pattern fails when the current position is at a  match attempt for an unanchored pattern fails when the current position is at a
1221  CRLF sequence, and the pattern contains no explicit matches for CR or NL  CRLF sequence, and the pattern contains no explicit matches for CR or LF
1222  characters, the match position is advanced by two characters instead of one, in  characters, the match position is advanced by two characters instead of one, in
1223  other words, to after the CRLF.  other words, to after the CRLF.
1224  .P  .P
# Line 1228  set), it does not match the string "\er\ Line 1228  set), it does not match the string "\er\
1228  start, it skips both the CR and the LF before retrying. However, the pattern  start, it skips both the CR and the LF before retrying. However, the pattern
1229  [\er\en]A does match that string, because it contains an explicit CR or LF  [\er\en]A does match that string, because it contains an explicit CR or LF
1230  reference, and so advances only by one character after the first failure.  reference, and so advances only by one character after the first failure.
1231  Note than an explicit CR or LF reference occurs for negated character classes  .P
1232  such as [^X] because they can match CR or LF characters.  An explicit match for CR of LF is either a literal appearance of one of those
1233    characters, or one of the \er or \en escape sequences. Implicit matches such as
1234    [^X] do not count, nor does \es (which includes CR and LF in the characters
1235    that it matches).
1236  .P  .P
1237  Notwithstanding the above, anomalous effects may still occur when CRLF is a  Notwithstanding the above, anomalous effects may still occur when CRLF is a
1238  valid newline sequence and explicit \er or \en escapes appear in the pattern.  valid newline sequence and explicit \er or \en escapes appear in the pattern.
# Line 1921  Cambridge CB2 3QH, England. Line 1924  Cambridge CB2 3QH, England.
1924  .rs  .rs
1925  .sp  .sp
1926  .nf  .nf
1927  Last updated: 21 August 2007  Last updated: 10 September 2007
1928  Copyright (c) 1997-2007 University of Cambridge.  Copyright (c) 1997-2007 University of Cambridge.
1929  .fi  .fi
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