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Diffstat (limited to 'doc/html/pcrelimits.html')
| -rw-r--r-- | doc/html/pcrelimits.html | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/doc/html/pcrelimits.html b/doc/html/pcrelimits.html index 4dc28f7..2cab81f 100644 --- a/doc/html/pcrelimits.html +++ b/doc/html/pcrelimits.html @@ -37,6 +37,12 @@ There is no limit to the number of parenthesized subpatterns, but there can be no more than 65535 capturing subpatterns. </P> <P> +There is a limit to the number of forward references to subsequent subpatterns +of around 200,000. Repeated forward references with fixed upper limits, for +example, (?2){0,100} when subpattern number 2 is to the right, are included in +the count. There is no limit to the number of backward references. +</P> +<P> The maximum length of name for a named subpattern is 32 characters, and the maximum number of named subpatterns is 10000. </P> @@ -65,7 +71,7 @@ Cambridge CB2 3QH, England. REVISION </b><br> <P> -Last updated: 24 August 2011 +Last updated: 30 November 2011 <br> Copyright © 1997-2011 University of Cambridge. <br> |