Annotation of 43BSD/contrib/icon/man/cat2/pdae.2, revision 1.1

1.1     ! root        1: 
        !             2: 
        !             3: 
        !             4: PDAE(2)               Icon Program Library                PDAE(2)
        !             5: 
        !             6: 
        !             7: 
        !             8: NNNNAAAAMMMMEEEE
        !             9:      pdae - programmer-defined argument evaluation
        !            10: 
        !            11: DDDDEEEESSSSCCCCRRRRIIIIPPPPTTTTIIIIOOOONNNN
        !            12:      These procedures are taken mainly from TR 82-16, which
        !            13:      describes how co-expressions can be used to model the
        !            14:      built-in argument evaluation regime of Icon and also provide
        !            15:      new ones. Some procedures have been corrected or improved.
        !            16: 
        !            17: SSSSYYYYNNNNOOOOPPPPSSSSIIIISSSS
        !            18:      AAAAllllllllppppaaaarrrr{{{{eeee1111,,,,eeee2222,,,, ...}}}}  parallel evaluation with last result used for short sequences
        !            19:      CCCCaaaallllllll((((aaaa))))             utility procedure to call functions
        !            20:      EEEExxxxttttrrrraaaacccctttt{{{{eeee1111,,,,eeee2222,,,, ...}}}} extract results of even-numbered arguments according to
        !            21:                             odd-numbered values
        !            22:      LLLLiiiiffffoooo{{{{eeee1111,,,,eeee2222,,,, ...}}}}    models standard Icon `lifo' evaluation
        !            23:      PPPPaaaarrrraaaalllllllleeeellll{{{{eeee1111,,,,eeee2222,,,, ...}}}}parallel evaluation terminating on shortest sequence
        !            24:      RRRReeeevvvveeeerrrrsssseeee{{{{eeee1111,,,,eeee2222,,,, ...}}}} left-to-right reversal of lifo evaluation
        !            25:      RRRRoooottttaaaatttteeee{{{{eeee1111,,,,eeee2222,,,, ...}}}}  parallel evaluation with shorter sequences re-evaluated
        !            26:      SSSSiiiimmmmpppplllleeee{{{{eeee1111,,,,eeee2222,,,, ...}}}}  simple evaluation with only success or failure
        !            27: 
        !            28: RRRREEEEQQQQUUUUIIIIRRRREEEEMMMMEEEENNNNTTTTSSSS
        !            29:      _P_d_a_e requires the experimental extensions in Version 5.9 of
        !            30:      Icon.
        !            31: 
        !            32: BBBBUUUUGGGGSSSS AAAANNNNDDDD LLLLIIIIMMMMIIIITTTTAAAATTTTIIIIOOOONNNNSSSS
        !            33:      Because of the handling of the scope of local identifiers in
        !            34:      co-expressions, expressions in programmer-defined argument
        !            35:      evaluation regimes cannot communicate through local identif-
        !            36:      iers. The results produced by programmer-defined argument
        !            37:      evaluation regimes are always dereferenced. Some construc-
        !            38:      tions, such as bbbbrrrreeeeaaaakkkk and rrrreeeettttuuuurrrrnnnn, cannot be used in arguments
        !            39:      to programmer-defined argument evaluation regimes. See TR
        !            40:      82-8 for details of these problems.
        !            41: 
        !            42:      At most 10 arguments can be used in the invocation of a
        !            43:      programmer-defined argument evaluation regime. This limit
        !            44:      can be increased by modifying CCCCaaaallllllll.
        !            45: 
        !            46: SSSSEEEEEEEE AAAALLLLSSSSOOOO
        !            47:      pdco(2)
        !            48: 
        !            49:      Novak, Michael and Ralph E. Griswold. _P_r_o_g_r_a_m_m_e_r-_D_e_f_i_n_e_d
        !            50:      _A_r_g_u_m_e_n_t _E_v_a_l_u_a_t_i_o_n _R_e_g_i_m_e_s, TR 82-16, Department of Com-
        !            51:      puter Science, The University of Arizona, 1982.
        !            52: 
        !            53:      Griswold, Ralph E., Robert K. McConeghy, and William H.
        !            54:      Mitchell.  _E_x_t_e_n_s_i_o_n_s _t_o _V_e_r_s_i_o_n _5 _o_f _t_h_e _I_c_o_n _P_r_o_g_r_a_m_m_i_n_g
        !            55:      _L_a_n_g_u_a_g_e, TR 84-10a, Department of Computer Science, The
        !            56:      University of Arizona, 1984.
        !            57: 
        !            58: AAAAUUUUTTTTHHHHOOOORRRRSSSS
        !            59:      Ralph E. Griswold and Michael Novak
        !            60: 
        !            61: 
        !            62: 
        !            63: Version 5.9    The University of Arizona - 8/16/84              1
        !            64: 
        !            65: 
        !            66: 

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