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-rw-r--r-- | doc/pcreapi.3 | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/doc/pcreapi.3 b/doc/pcreapi.3 index 04cc741..4176cea 100644 --- a/doc/pcreapi.3 +++ b/doc/pcreapi.3 @@ -848,6 +848,16 @@ Studying a pattern is also useful for non-anchored patterns that do not have a single fixed starting character. A bitmap of possible starting bytes is created. This speeds up finding a position in the subject at which to start matching. +.P +The two optimizations just described can be disabled by setting the +PCRE_NO_START_OPTIMIZE option when calling \fBpcre_exec()\fP or +\fBpcre_dfa_exec()\fP. You might want to do this if your pattern contains +callouts, or make use of (*MARK), and you make use of these in cases where +matching fails. See the discussion of PCRE_NO_START_OPTIMIZE +.\" HTML <a href="#execoptions"> +.\" </a> +below. +.\" . . .\" HTML <a name="localesupport"></a> @@ -2168,6 +2178,6 @@ Cambridge CB2 3QH, England. .rs .sp .nf -Last updated: 20 June 2010 +Last updated: 21 June 2010 Copyright (c) 1997-2010 University of Cambridge. .fi |