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   pcreapi    ( 3 )

Perl-совместимые регулярные выражения (Perl-compatible regular expressions)
  Name  |  Pcre native api basic functions  |  Pcre native api string extraction functions  |  Pcre native api auxiliary functions  |  Pcre native api indirected functions  |  Pcre 8-bit, 16-bit, and 32-bit libraries  |  Pcre api overview  |  Newlines  |    Multithreading    |  Saving precompiled patterns for later use  |  Checking build-time options  |  Compiling a pattern  |  Compilation error codes  |  Studying a pattern  |  Locale support  |  Information about a pattern  |  Reference counts  |  Matching a pattern: the traditional function  |  Extracting captured substrings by number  |  Extracting captured substrings by name  |  Duplicate subpattern names  |  Finding all possible matches  |  Obtaining an estimate of stack usage  |  Matching a pattern: the alternative function  |  See also  |

MULTITHREADING

The PCRE functions can be used in multi-threading applications,
       with the proviso that the memory management functions pointed to
       by pcre_malloc, pcre_free, pcre_stack_malloc, and
       pcre_stack_free, and the callout and stack-checking functions
       pointed to by pcre_callout and pcre_stack_guard, are shared by
       all threads.


       The compiled form of a regular expression is not altered during
       matching, so the same compiled pattern can safely be used by
       several threads at once.


       If the just-in-time optimization feature is being used, it needs
       separate memory stack areas for each thread. See the pcrejit
       documentation for more details.