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PCRE_CONFIG(3)                       Library Functions Manual                      PCRE_CONFIG(3)

       PCRE - Perl-compatible regular expressions


       #include <pcre.h>

       int pcre_config(int what, void *where);

       int pcre16_config(int what, void *where);

       int pcre32_config(int what, void *where);


       This  function  makes it possible for a client program to find out which optional features
       are available in the version of the PCRE library it is using. The arguments  are  as  fol‐

         what     A code specifying what information is required
         where    Points to where to put the data

       The  where  argument must point to an integer variable, except for PCRE_CONFIG_MATCH_LIMIT
       and PCRE_CONFIG_MATCH_LIMIT_RECURSION, when it must point to an unsigned long integer. The
       available codes are:

         PCRE_CONFIG_JIT           Availability of just-in-time compiler
                                     support (1=yes 0=no)
         PCRE_CONFIG_JITTARGET     String containing information about the
                                     target architecture for the JIT compiler,
                                     or NULL if there is no JIT support
         PCRE_CONFIG_LINK_SIZE     Internal link size: 2, 3, or 4
         PCRE_CONFIG_PARENS_LIMIT  Parentheses nesting limit
         PCRE_CONFIG_MATCH_LIMIT   Internal resource limit
                                   Internal recursion depth limit
         PCRE_CONFIG_NEWLINE       Value of the default newline sequence:
                                       13 (0x000d)    for CR
                                       10 (0x000a)    for LF
                                     3338 (0x0d0a)    for CRLF
                                       -2             for ANYCRLF
                                       -1             for ANY
         PCRE_CONFIG_BSR           Indicates what \R matches by default:
                                        0             all Unicode line endings
                                        1             CR, LF, or CRLF only
                                   Threshold of return slots, above which
                                     malloc() is used by the POSIX API
         PCRE_CONFIG_STACKRECURSE  Recursion implementation (1=stack 0=heap)
         PCRE_CONFIG_UTF16         Availability of UTF-16 support (1=yes
                                      0=no); option for pcre16_config()
         PCRE_CONFIG_UTF32         Availability of UTF-32 support (1=yes
                                      0=no); option for pcre32_config()
         PCRE_CONFIG_UTF8          Availability of UTF-8 support (1=yes 0=no);
                                     option for pcre_config()
                                   Availability of Unicode property support
                                     (1=yes 0=no)

       The  function  yields  0  on success or PCRE_ERROR_BADOPTION otherwise. That error is also
       given if PCRE_CONFIG_UTF16 or PCRE_CONFIG_UTF32 is passed to pcre_config(),  if  PCRE_CON‐
       FIG_UTF8  or  PCRE_CONFIG_UTF32  is  passed  to pcre16_config(), or if PCRE_CONFIG_UTF8 or
       PCRE_CONFIG_UTF16 is passed to pcre32_config().

       There is a complete description of the PCRE native API in the pcreapi page and a  descrip‐
       tion of the POSIX API in the pcreposix page.

PCRE 8.34                                05 November 2013                          PCRE_CONFIG(3)

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