This parameter is always zero and not necessary to call pcre2_match.
I'm leaving the parameter behind on the _ex() variant, so the preg_flags
are still accessible in some way.
Set preg_options to 0 in php_pcre_get_compiled_regex(_ex). These
options are intended to be passed to pcre2_match. However, we do
not have any flags that actually need to be set during matching
(all relevant flags are set during compilation), and the preg_flags
value is used for PHP-specific flags instead.
This parameter should be removed entirely in master to avoid confusion.
The $Id$ keywords were used in Subversion where they can be substituted
with filename, last revision number change, last changed date, and last
user who changed it.
In Git this functionality is different and can be done with Git attribute
ident. These need to be defined manually for each file in the
.gitattributes file and are afterwards replaced with 40-character
hexadecimal blob object name which is based only on the particular file
contents.
This patch simplifies handling of $Id$ keywords by removing them since
they are not used anymore.
If a locale other than C is active, character tables are saved into the
compile context. Every compiled pattern will have a pointer to the
character table, that was present in the context at the time of the
pattern compilation. Thus, the cache entries don't need to carry char
tables pointer, which reduces their size to 8 bytes on 64-bit. Instead,
the generated character tables are tracked in a separate HashTable. If a
character table was generated before, it'll be assigned to the compile
context when the locale changes. Otherwise a new char table will be
generated and cached.
If (*NO_JIT) is put into the pattern, the JIT compilation will still
succeed but produce no code. The pattern will still have to be
interpreted and is not suitable for the JIT fast path. This means,
we still need to check the pattern info after JIT compilation and only
set the flags when the JIT code was produced.
In this case it loops through different subjects without looking for sub
matches and matches are done against the same pattern. Thus, don't reset
the UTF check flag but use it to check whether JIT should be used and
otherwise let PCRE to do the job according to what was saved into the
pattern.
