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Diffstat (limited to 'pcre/doc/html/pcrepartial.html')
| -rw-r--r-- | pcre/doc/html/pcrepartial.html | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/pcre/doc/html/pcrepartial.html b/pcre/doc/html/pcrepartial.html index 98d34f0bcc2..4faeafcb688 100644 --- a/pcre/doc/html/pcrepartial.html +++ b/pcre/doc/html/pcrepartial.html @@ -306,6 +306,16 @@ not retain the previously partially-matched string. It is up to the calling program to do that if it needs to. </P> <P> +That means that, for an unanchored pattern, if a continued match fails, it is +not possible to try again at a new starting point. All this facility is capable +of doing is continuing with the previous match attempt. In the previous +example, if the second set of data is "ug23" the result is no match, even +though there would be a match for "aug23" if the entire string were given at +once. Depending on the application, this may or may not be what you want. +The only way to allow for starting again at the next character is to retain the +matched part of the subject and try a new complete match. +</P> +<P> You can set the PCRE_PARTIAL_SOFT or PCRE_PARTIAL_HARD options with PCRE_DFA_RESTART to continue partial matching over multiple segments. This facility can be used to pass very long subject strings to the DFA matching @@ -490,7 +500,7 @@ Cambridge CB2 3QH, England. </P> <br><a name="SEC11" href="#TOC1">REVISION</a><br> <P> -Last updated: 20 February 2013 +Last updated: 02 July 2013 <br> Copyright © 1997-2013 University of Cambridge. <br> |