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Annotation of coherent/a/usr/man/COHERENT/tgetent, revision 1.1

1.1     ! root        1: 
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        !             3: tgetent()         Terminal-Independent Operation        tgetent()
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        !             7: 
        !             8: Read termcap entry
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        !            10: iinntt ttggeetteenntt(_b_p, _n_a_m_e)
        !            11: cchhaarr *_b_p, *_n_a_m_e;
        !            12: 
        !            13: tgetent is one  of a set of functions that  help COHERENT to per-
        !            14: form terminal-independent operations.  It extracts the entry from
        !            15: file  /etc/termcap for  the terminal  name and  writes it  into a
        !            16: buffer at  address bp.  bp should be a  character buffer of 1,024
        !            17: bytes and  must be retained  through all subsequent  calls to the
        !            18: other functions.   It returns -1 if  it cannot open /etc/termcap,
        !            19: zero if the  terminal name given does not have  an entry, and one
        !            20: upon a successful search.
        !            21: 
        !            22: tgetent  first looks  in the  environment to  see if  the termcap
        !            23: variable had  already been  set.  If  it finds that  the variable
        !            24: termcap has been set, that the value does _n_o_t begin with a slash,
        !            25: and that  the terminal type  name in the tteerrmmccaapp  variable is the
        !            26: same as that in  the environment variable TERM, then ttggeetteenntt uses
        !            27: the  termcap string  instead  of reading  the file  /etc/termcap.
        !            28: However, if  the termcap string does begin with  a slash, then it
        !            29: is used  as the  pathname of  a terminal capabilities  file other
        !            30: than /etc/termcap.  This  can speed entry into programs that call
        !            31: tgetent, and can be used to help debug new terminal descriptions.
        !            32: 
        !            33: ***** Files *****
        !            34: 
        !            35: /eettcc/tteerrmmccaapp -- Terminal capabilities data base
        !            36: /uussrr/lliibb/lliibbtteerrmm.aa -- Function library
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        !            38: ***** See Also *****
        !            39: 
        !            40: termcap, terminal-independent operation
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        !            64: COHERENT Lexicon                                           Page 1
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