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re_exec (3)
  • >> re_exec (3) ( FreeBSD man: Библиотечные вызовы )
  • re_exec (3) ( Русские man: Библиотечные вызовы )
  • re_exec (3) ( Linux man: Библиотечные вызовы )

  • BSD mandoc
     

    NAME

    
    
    re_comp
    
     
    re_exec
    
     - regular expression handler
    
     
    

    LIBRARY

    Lb libcompat
    
     
    

    SYNOPSIS

       #include <unistd.h>
    char * re_comp (const char *s);
    int re_exec (const char *s);
     

    DESCRIPTION

    Bf -symbolic This interface is made obsolete by regex(3). Ef

    The re_comp ();
    function compiles a string into an internal form suitable for pattern matching. The re_exec ();
    function checks the argument string against the last string passed to re_comp (.);

    The re_comp ();
    function returns 0 if the string Fa s was compiled successfully; otherwise a string containing an error message is returned. If re_comp ();
    is passed 0 or a null string, it returns without changing the currently compiled regular expression.

    The re_exec ();
    function returns 1 if the string Fa s matches the last compiled regular expression, 0 if the string Fa s failed to match the last compiled regular expression, and -1 if the compiled regular expression was invalid (indicating an internal error).

    The strings passed to both re_comp ();
    and re_exec ();
    may have trailing or embedded newline characters; they are terminated by NUL s The regular expressions recognized are described in the manual entry for ed(1), given the above difference.  

    DIAGNOSTICS

    The re_exec ();
    function returns -1 for an internal error.

    The re_comp ();
    function returns one of the following strings if an error occurs:

    No previous regular expression,
    Regular expression too long,
    unmatched \(,
    missing ],
    too many \(\) pairs,
    unmatched \).
    
     

    SEE ALSO

    ed(1), egrep(1), ex(1), fgrep(1), grep(1), regex(3)  

    HISTORY

    The re_comp ();
    and re_exec ();
    functions appeared in BSD 4.0


     

    Index

    NAME
    LIBRARY
    SYNOPSIS
    DESCRIPTION
    DIAGNOSTICS
    SEE ALSO
    HISTORY


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