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    Command:

    pcre_dfa_exec

    
    
    

    SYNOPSIS

    
           #include <pcre.h>
    
           int pcre_dfa_exec(const pcre *code, const pcre_extra *extra,
                const char *subject, int length, int startoffset,
                int options, int *ovector, int ovecsize,
                int *workspace, int wscount);
    
    
    

    DESCRIPTION

    
           This  function  matches  a  compiled regular expression against a given
           subject string, using an alternative matching algorithm that scans  the
           subject  string  just  once  (not Perl-compatible). Note that the main,
           Perl-compatible, matching function is pcre_exec().  The  arguments  for
           this function are:
    
             code         Points to the compiled pattern
             extra        Points to an associated pcre_extra structure,
                            or is NULL
             subject      Points to the subject string
             length       Length of the subject string, in bytes
             startoffset  Offset in bytes in the subject at which to
                            start matching
             options      Option bits
             ovector      Points to a vector of ints for result offsets
             ovecsize     Number of elements in the vector
             workspace    Points to a vector of ints used as working space
             wscount      Number of elements in the vector
    
           The options are:
    
             PCRE_ANCHORED      Match only at the first position
             PCRE_BSR_ANYCRLF   \R matches only CR, LF, or CRLF
             PCRE_BSR_UNICODE   \R matches all Unicode line endings
             PCRE_NEWLINE_ANY   Recognize any Unicode newline sequence
             PCRE_NEWLINE_ANYCRLF  Recognize CR, LF, and CRLF as newline sequences
             PCRE_NEWLINE_CR    Set CR as the newline sequence
             PCRE_NEWLINE_CRLF  Set CRLF as the newline sequence
             PCRE_NEWLINE_LF    Set LF as the newline sequence
             PCRE_NOTBOL        Subject is not the beginning of a line
             PCRE_NOTEOL        Subject is not the end of a line
             PCRE_NOTEMPTY      An empty string is not a valid match
             PCRE_NO_UTF8_CHECK Do not check the subject for UTF-8
                                  validity (only relevant if PCRE_UTF8
                                  was set at compile time)
             PCRE_PARTIAL       Return PCRE_ERROR_PARTIAL for a partial match
             PCRE_DFA_SHORTEST  Return only the shortest match
             PCRE_DFA_RESTART   This is a restart after a partial match
    
           There are restrictions on what may appear in a pattern when using  this
           matching function. Details are given in the pcrematching documentation.
    
           There  is  a complete description of the PCRE native API in the pcreapi
           page and a description of the POSIX API in the pcreposix page.
    
                                                                  PCRE_DFA_EXEC(3)
    
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