1 | /*
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2 | * Action_impl_python.hpp
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3 | *
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4 | * Created on: Sep 25, 2011
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5 | * Author: heber
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6 | */
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7 |
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8 | // include config.h
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9 | #ifdef HAVE_CONFIG_H
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10 | #include <config.h>
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11 | #endif
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12 |
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13 | #include <boost/preprocessor/cat.hpp>
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14 | #include <boost/preprocessor/comparison/equal.hpp>
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15 | #include <boost/preprocessor/control/if.hpp>
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16 | #include <boost/preprocessor/control/expr_if.hpp>
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17 | #include <boost/preprocessor/debug/assert.hpp>
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18 | #include <boost/preprocessor/facilities/expand.hpp>
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19 | #include <boost/preprocessor/iteration/local.hpp>
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20 | #include <boost/preprocessor/list/adt.hpp>
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21 | #include <boost/preprocessor/punctuation/comma_if.hpp>
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22 | #include <boost/preprocessor/punctuation/paren.hpp>
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23 |
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24 | // some derived names: if CATEGORY is not given, we don't prefix with it
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25 | #ifdef CATEGORY
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26 | #define ACTION BOOST_PP_CAT(CATEGORY, BOOST_PP_CAT(ACTIONNAME, Action))
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27 | #define COMMAND BOOST_PP_CAT(CATEGORY, ACTIONNAME)
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28 | #define PARAMS BOOST_PP_CAT(CATEGORY, BOOST_PP_CAT(ACTIONNAME, Parameters))
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29 | #else
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30 | #define ACTION BOOST_PP_CAT(ACTIONNAME, Action)
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31 | #define COMMAND ACTIONNAME
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32 | #define PARAMS BOOST_PP_CAT(ACTIONNAME, Parameters)
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33 | #endif
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34 |
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35 | // for paramdefaults entries
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36 | #define PARAM_DEFAULT(x) \
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37 | (x, BOOST_PP_NIL)
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38 |
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39 | // check if no lists given
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40 | #ifndef paramtokens
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41 | #define MAXPARAMTYPES 0
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42 | #else
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43 | #define MAXPARAMTYPES BOOST_PP_SEQ_SIZE(paramtokens)
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44 | #endif
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45 |
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46 | // calculate numbers and check whether all have same size
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47 | #ifdef paramtokens
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48 | BOOST_PP_ASSERT_MSG(BOOST_PP_EQUAL(MAXPARAMTYPES, BOOST_PP_SEQ_SIZE(paramdescriptions)),\
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49 | ERROR: There are not the same number of "paramtokens" and "paramdescriptions" in: __FILE__ \
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50 | )
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51 | #endif
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52 |
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53 | // print a list of "action separator description linenend, i.e. "Action - descrption\n"
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54 | #define help_print(z,n,TYPELIST, VARLIST, separator, lineend) \
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55 | BOOST_PP_IF(n, +, BOOST_PP_EMPTY()) \
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56 | "\t" + std::string( BOOST_PP_SEQ_ELEM(n, TYPELIST) ) + \
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57 | std::string( separator ) + \
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58 | std::string( BOOST_PP_SEQ_ELEM(n, VARLIST) ) + \
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59 | std::string( lineend )
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60 |
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61 | // print a list of comma-separated list, i.e. (,)arg("Action")=default
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62 | #define stringdefault_print(z,n,STRINGLIST, DEFAULTLIST) \
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63 | BOOST_PP_COMMA_IF(n) \
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64 | boost::python::arg( \
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65 | BOOST_PP_SEQ_ELEM(n, STRINGLIST) \
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66 | ) \
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67 | = \
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68 | BOOST_PP_IF( \
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69 | BOOST_PP_NOT( BOOST_PP_LIST_IS_NIL( BOOST_PP_SEQ_ELEM(n, paramdefaults) ) ), \
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70 | toString BOOST_PP_LPAREN() \
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71 | BOOST_PP_LIST_FIRST( BOOST_PP_SEQ_ELEM(n, DEFAULTLIST) ) \
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72 | BOOST_PP_RPAREN(), \
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73 | std::string("") \
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74 | )
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75 |
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76 | // print a list of comma-separated list, i.e. (,)arg("Action")
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77 | #define string_print(z,n,STRINGLIST) \
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78 | BOOST_PP_COMMA_IF(n) \
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79 | boost::python::arg( \
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80 | BOOST_PP_SEQ_ELEM(n, STRINGLIST) \
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81 | )
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82 |
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83 | // print a list of type ref followed, i.e. "int i, double position"
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84 | #define type_list(z,n,TYPELIST, VARLIST) \
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85 | BOOST_PP_COMMA_IF(n)\
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86 | BOOST_PP_SEQ_ELEM(n, TYPELIST) \
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87 | BOOST_PP_SEQ_ELEM(n, VARLIST)
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88 |
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89 | // prints set/queryCurrentValue (command) for paramreferences and paramtokens
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90 | #define value_print(z, n, container, prefix) \
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91 | prefix \
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92 | BOOST_PP_SEQ_ELEM(n, container)\
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93 | .set(\
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94 | BOOST_PP_SEQ_ELEM(n, container)\
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95 | );
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96 |
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97 | #define stringtype std::string
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98 |
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99 | #define type2string(s, data, elem) \
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100 | stringtype
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101 |
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102 | #include "Actions/Action.hpp"
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103 | #include "Actions/ActionRegistry.hpp"
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104 |
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105 | namespace MoleCuilder {
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106 | #ifdef returntype
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107 | returntype
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108 | #else
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109 | void
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110 | #endif
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111 | BOOST_PP_CAT( COMMAND, _stringargs)(
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112 | #if defined paramtypes
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113 | #define BOOST_PP_LOCAL_MACRO(n) type_list(~, n, BOOST_PP_SEQ_TRANSFORM( type2string, , paramtypes), paramreferences)
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114 | #define BOOST_PP_LOCAL_LIMITS (0, MAXPARAMTYPES-1)
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115 | #include BOOST_PP_LOCAL_ITERATE()
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116 | #endif
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117 | );
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118 | }
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119 |
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120 | void BOOST_PP_CAT(export_, COMMAND)()
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121 | {
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122 | std::string docstring =
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123 | std::string( DESCRIPTION ) + "\n\n"
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124 | #if defined paramtokens && defined paramdescriptions
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125 | #define BOOST_PP_LOCAL_MACRO(n) help_print(~, n, paramtokens, paramdescriptions, " - ", "\n")
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126 | #define BOOST_PP_LOCAL_LIMITS (0, MAXPARAMTYPES-1)
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127 | #include BOOST_PP_LOCAL_ITERATE()
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128 | #endif
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129 | ;
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130 | boost::python::def(
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131 | BOOST_PP_STRINGIZE(COMMAND),
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132 | MoleCuilder:: BOOST_PP_CAT( COMMAND, _stringargs)
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133 | #if defined paramtokens // do we have parameters at all?
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134 | ,(
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135 | #if defined paramdefaults
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136 | #define BOOST_PP_LOCAL_MACRO(n) stringdefault_print(~, n, paramtokens, paramdefaults)
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137 | #else
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138 | #define BOOST_PP_LOCAL_MACRO(n) string_print(~, n, paramtokens)
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139 | #endif
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140 | #define BOOST_PP_LOCAL_LIMITS (0, MAXPARAMTYPES-1)
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141 | #include BOOST_PP_LOCAL_ITERATE()
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142 | ), docstring.c_str()
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143 | #else
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144 | , DESCRIPTION
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145 | #endif
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146 | );
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147 | }
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148 |
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149 | #undef COMMAND
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150 | #undef ACTION
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151 | #undef PARAMS
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152 | #undef MAXPARAMTYPES
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153 | #undef PARAM_DEFAULT
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154 |
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155 | #undef help_print
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156 | #undef string_print
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157 | #undef stringdefault_print
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158 | #undef type_list
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159 | #undef value_print
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160 |
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161 | #undef type2string
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162 | #undef stringtype
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