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Update bundled PCRE2-library to version 10.23

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Some manual changes done to the library were lost with this update.
They will be added in the next commit.
This commit is contained in:
Esa Korhonen
2017-05-29 15:31:42 +03:00
parent 7231563937
commit 36af74cb25
218 changed files with 49218 additions and 26130 deletions
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29
pcre2/doc/pcre2limits.3
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@ -1,4 +1,4 @@
.TH PCRE2LIMITS 3 "25 November 2014" "PCRE2 10.00"
.TH PCRE2LIMITS 3 "26 October 2016" "PCRE2 10.23"
.SH NAME
PCRE2 - Perl-compatible regular expressions (revised API)
.SH "SIZE AND OTHER LIMITATIONS"
@ -20,6 +20,10 @@ documentation for details. In these cases the limit is substantially larger.
However, the speed of execution is slower. In the 32-bit library, the internal
linkage size is always 4.
.P
The maximum length of a source pattern string is essentially unlimited; it is
the largest number a PCRE2_SIZE variable can hold. However, the program that
calls \fBpcre2_compile()\fP can specify a smaller limit.
.P
The maximum length (in code units) of a subject string is one less than the
largest number a PCRE2_SIZE variable can hold. PCRE2_SIZE is an unsigned
integer type, usually defined as size_t. Its maximum value (that is
@ -37,22 +41,25 @@ documentation.
.P
All values in repeating quantifiers must be less than 65536.
.P
The maximum length of a lookbehind assertion is 65535 characters.
.P
There is no limit to the number of parenthesized subpatterns, but there can be
no more than 65535 capturing subpatterns. There is, however, a limit to the
depth of nesting of parenthesized subpatterns of all kinds. This is imposed in
order to limit the amount of system stack used at compile time. The limit can
be specified when PCRE2 is built; the default is 250.
.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.
order to limit the amount of system stack used at compile time. The default
limit can be specified when PCRE2 is built; the default default is 250. An
application can change this limit by calling pcre2_set_parens_nest_limit() to
set the limit in a compile context.
.P
The maximum length of name for a named subpattern is 32 code units, and the
maximum number of named subpatterns is 10000.
.P
The maximum length of a name in a (*MARK), (*PRUNE), (*SKIP), or (*THEN) verb
is 255 for the 8-bit library and 65535 for the 16-bit and 32-bit libraries.
is 255 code units for the 8-bit library and 65535 code units for the 16-bit and
32-bit libraries.
.P
The maximum length of a string argument to a callout is the largest number a
32-bit unsigned integer can hold.
.
.
.SH AUTHOR
@ -69,6 +76,6 @@ Cambridge, England.
.rs
.sp
.nf
Last updated: 25 November 2014
Copyright (c) 1997-2014 University of Cambridge.
Last updated: 26 October 2016
Copyright (c) 1997-2016 University of Cambridge.
.fi