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| author | ph10 <ph10@6239d852-aaf2-0410-a92c-79f79f948069> | 2015-11-14 16:48:32 +0000 |
|---|---|---|
| committer | ph10 <ph10@6239d852-aaf2-0410-a92c-79f79f948069> | 2015-11-14 16:48:32 +0000 |
| commit | 8ccf72daf9ea0d39df02e3d46d594898b6ad7e2e (patch) | |
| tree | e1cd8b395b566fd4cd791216642ea1318996561f /doc/pcre2jit.3 | |
| parent | 718b04a5c32ce7335b15a1c1628d9fd37fad132c (diff) | |
| download | pcre2-8ccf72daf9ea0d39df02e3d46d594898b6ad7e2e.tar.gz | |
Document JIT compile size limit and give more info in pcre2test.
git-svn-id: svn://vcs.exim.org/pcre2/code/trunk@434 6239d852-aaf2-0410-a92c-79f79f948069
Diffstat (limited to 'doc/pcre2jit.3')
| -rw-r--r-- | doc/pcre2jit.3 | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/doc/pcre2jit.3 b/doc/pcre2jit.3 index e76ad10..a2117ea 100644 --- a/doc/pcre2jit.3 +++ b/doc/pcre2jit.3 @@ -1,4 +1,4 @@ -.TH PCRE2JIT 3 "28 July 2014" "PCRE2 10.21" +.TH PCRE2JIT 3 "14 November 2015" "PCRE2 10.21" .SH NAME PCRE2 - Perl-compatible regular expressions (revised API) .SH "PCRE2 JUST-IN-TIME COMPILER SUPPORT" @@ -61,6 +61,12 @@ much faster than the normal interpretive code, but yields exactly the same results. The returned value from \fBpcre2_jit_compile()\fP is zero on success, or a negative error code. .P +There is a limit to the size of pattern that JIT supports, imposed by the size +of machine stack that it uses. The exact rules are not documented because they +may change at any time, in particular, when new optimizations are introduced. +If a pattern is too big, a call to \fBpcre2_jit_compile()\fB returns +PCRE2_ERROR_NOMEMORY. +.P PCRE2_JIT_COMPLETE requests the JIT compiler to generate code for complete matches. If you want to run partial matches using the PCRE2_PARTIAL_HARD or PCRE2_PARTIAL_SOFT options of \fBpcre2_match()\fP, you should set one or both @@ -404,6 +410,6 @@ Cambridge, England. .rs .sp .nf -Last updated: 28 July 2015 +Last updated: 14 November 2015 Copyright (c) 1997-2015 University of Cambridge. .fi |