usr/share/man/cat3/re_exec.0

RE_COMP(3)                  BSD Programmer's Manual                 RE_COMP(3)

N\bNA\bAM\bME\bE
     r\bre\be_\b_c\bco\bom\bmp\bp, r\bre\be_\b_e\bex\bxe\bec\bc - regular expression handler

S\bSY\bYN\bNO\bOP\bPS\bSI\bIS\bS
     #\b#i\bin\bnc\bcl\blu\bud\bde\be <\b<u\bun\bni\bis\bst\btd\bd.\b.h\bh>\b>

     _\bc_\bh_\ba_\br _\b*
     r\bre\be_\b_c\bco\bom\bmp\bp(_\bc_\bo_\bn_\bs_\bt _\bc_\bh_\ba_\br _\b*_\bs);

     _\bi_\bn_\bt
     r\bre\be_\b_e\bex\bxe\bec\bc(_\bc_\bo_\bn_\bs_\bt _\bc_\bh_\ba_\br _\b*_\bs);

D\bDE\bES\bSC\bCR\bRI\bIP\bPT\bTI\bIO\bON\bN
     This interface is made obsolete by regex(3).

     The r\bre\be_\b_c\bco\bom\bmp\bp() function compiles a string into an internal form suitable
     for pattern matching.  The r\bre\be_\b_e\bex\bxe\bec\bc() function checks the argument string
     against the last string passed to r\bre\be_\b_c\bco\bom\bmp\bp().

     The r\bre\be_\b_c\bco\bom\bmp\bp() function returns 0 if the string _\bs was compiled successful-
     ly; otherwise a string containing an error message is returned. If
     r\bre\be_\b_c\bco\bom\bmp\bp() is passed 0 or a null string, it returns without changing the
     currently compiled regular expression.

     The r\bre\be_\b_e\bex\bxe\bec\bc() function returns 1 if the string _\bs matches the last com-
     piled regular expression, 0 if the string _\bs failed to match the last com-
     piled regular expression, and -1 if the compiled regular expression was
     invalid (indicating an internal error).

     The strings passed to both r\bre\be_\b_c\bco\bom\bmp\bp() and r\bre\be_\b_e\bex\bxe\bec\bc() may have trailing or
     embedded newline characters; they are terminated by NULs. The regular ex-
     pressions recognized are described in the manual entry for ed(1),  given
     the above difference.

D\bDI\bIA\bAG\bGN\bNO\bOS\bST\bTI\bIC\bCS\bS
     The r\bre\be_\b_e\bex\bxe\bec\bc() function returns -1 for an internal error.

     The r\bre\be_\b_c\bco\bom\bmp\bp() 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 \).

S\bSE\bEE\bE A\bAL\bLS\bSO\bO
     ed(1),  ex(1),  egrep(1),  fgrep(1),  grep(1),  regex(3)

H\bHI\bIS\bST\bTO\bOR\bRY\bY
     The r\bre\be_\b_c\bco\bom\bmp\bp() and r\bre\be_\b_e\bex\bxe\bec\bc() functions appeared in 4.0BSD.

4.4BSD                           June 4, 1993                                1