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Annotation of cci/usr/src/man/man3/regex.3, revision 1.1

1.1     ! root        1: .TH REGEX 3 "29 February 1980"
        !             2: .UC 4
        !             3: .SH NAME
        !             4: re_comp, re_exec \- regular expression handler
        !             5: .SH SYNOPSIS
        !             6: .B char *re_comp(s)
        !             7: .br
        !             8: .B char *s;
        !             9: .PP
        !            10: .B re_exec(s)
        !            11: .br
        !            12: .B char *s;
        !            13: .SH DESCRIPTION
        !            14: .I Re_comp
        !            15: compiles a string into an internal form suitable for pattern matching. 
        !            16: .I Re_exec 
        !            17: checks the argument string against the last string passed to
        !            18: .I re_comp.
        !            19: .PP
        !            20: .I Re_comp
        !            21: returns 0 if the string
        !            22: .I s
        !            23: was compiled successfully; otherwise a string containing an
        !            24: error message is returned. If 
        !            25: .I re_comp
        !            26: is passed 0 or a null string, it returns without changing the currently
        !            27: compiled regular expression.
        !            28: .PP
        !            29: .I Re_exec
        !            30: returns 1 if the string
        !            31: .I s
        !            32: matches the last compiled regular expression, 0 if the string
        !            33: .I s
        !            34: failed to match the last compiled regular expression, and \-1 if the compiled
        !            35: regular expression was invalid (indicating an internal error).
        !            36: .PP
        !            37: The strings passed to both
        !            38: .I re_comp
        !            39: and
        !            40: .I re_exec
        !            41: may have trailing or embedded newline characters; 
        !            42: they are terminated by nulls.
        !            43: The regular expressions recognized are described in the manual entry for 
        !            44: .IR ed (1),
        !            45: given the above difference.
        !            46: .SH "SEE ALSO"
        !            47: ed(1), ex(1), egrep(1), fgrep(1), grep(1)
        !            48: .SH DIAGNOSTICS
        !            49: .I Re_exec
        !            50: returns \-1 for an internal error.
        !            51: .PP
        !            52: .I Re_comp
        !            53: returns one of the following strings if an error occurs:
        !            54: .PP
        !            55: .nf
        !            56: .in +0.5i
        !            57: \fINo previous regular expression,
        !            58: Regular expression too long,
        !            59: unmatched \e(,
        !            60: missing ],
        !            61: too many \e(\e) pairs,
        !            62: unmatched \e).\fP
        !            63: .in -0.5i
        !            64: .fi

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