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4343
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1 /* |
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2 |
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3 Copyright (C) 2003 John W. Eaton |
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4 |
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5 This file is part of Octave. |
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6 |
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7 Octave is free software; you can redistribute it and/or modify it |
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8 under the terms of the GNU General Public License as published by the |
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9 Free Software Foundation; either version 2, or (at your option) any |
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10 later version. |
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11 |
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12 Octave is distributed in the hope that it will be useful, but WITHOUT |
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13 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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15 for more details. |
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16 |
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17 You should have received a copy of the GNU General Public License |
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18 along with Octave; see the file COPYING. If not, write to the Free |
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19 Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA |
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20 02110-1301, USA. |
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21 |
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22 */ |
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23 |
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24 #ifdef HAVE_CONFIG_H |
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25 #include <config.h> |
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26 #endif |
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27 |
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28 #include <iostream> |
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5164
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29 #include <vector> |
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30 |
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31 #include "defun.h" |
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4654
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32 #include "error.h" |
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33 #include "gripes.h" |
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5663
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34 #include "input.h" |
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4343
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35 #include "oct-map.h" |
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36 #include "ov-base.h" |
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37 #include "ov-fcn-handle.h" |
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4980
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38 #include "ov-usr-fcn.h" |
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4343
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39 #include "pr-output.h" |
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4980
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40 #include "pt-pr-code.h" |
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41 #include "pt-misc.h" |
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42 #include "pt-stmt.h" |
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43 #include "pt-cmd.h" |
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44 #include "pt-exp.h" |
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45 #include "pt-assign.h" |
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4343
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46 #include "variables.h" |
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4988
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47 #include "parse.h" |
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48 |
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49 #include "byte-swap.h" |
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50 #include "ls-oct-ascii.h" |
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51 #include "ls-hdf5.h" |
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52 #include "ls-utils.h" |
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4343
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53 |
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54 DEFINE_OCTAVE_ALLOCATOR (octave_fcn_handle); |
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55 |
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4612
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56 DEFINE_OV_TYPEID_FUNCTIONS_AND_DATA (octave_fcn_handle, |
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57 "function handle", |
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58 "function handle"); |
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4343
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59 |
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5663
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60 void |
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61 octave_fcn_handle::reload_warning (const std::string& fcn_type) const |
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62 { |
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63 if (warn_reload) |
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64 { |
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65 warn_reload = false; |
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66 |
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67 warning ("reloading %s functions referenced by function handles is not implemented", |
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68 fcn_type.c_str ()); |
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69 } |
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70 } |
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71 |
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4924
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72 octave_value_list |
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73 octave_fcn_handle::subsref (const std::string& type, |
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74 const std::list<octave_value_list>& idx, |
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75 int nargout) |
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76 { |
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77 octave_value_list retval; |
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78 |
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79 switch (type[0]) |
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80 { |
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81 case '(': |
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82 { |
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83 octave_function *f = function_value (); |
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5312
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84 |
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5663
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85 if (f && f->time_checked () < Vlast_prompt_time) |
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86 { |
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87 std::string ff_nm = f->fcn_file_name (); |
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88 |
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89 time_t tp = f->time_parsed (); |
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90 |
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91 if (ff_nm.empty ()) |
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92 { |
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93 // XXX FIXME XXX -- need to handle inline and |
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94 // command-line functions here. |
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95 } |
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96 else |
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97 { |
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98 if (fcn_out_of_date (f, ff_nm, tp)) |
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99 { |
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100 // XXX FIXME XXX -- there is currently no way to |
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101 // parse a .m file or reload a .oct file that |
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102 // leaves the fbi symbol table untouched. We need |
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103 // a function that will parse the file and return |
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104 // a pointer to the new function definition |
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105 // without altering the symbol table. |
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106 |
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107 if (f->is_nested_function ()) |
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108 reload_warning ("nested"); |
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109 else |
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110 reload_warning ("functions"); |
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111 } |
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112 } |
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113 } |
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5312
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114 |
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115 if (f) |
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116 retval = f->subsref (type, idx, nargout); |
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117 else |
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118 error ("invalid function handle"); |
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4924
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119 } |
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120 break; |
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121 |
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122 |
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123 case '{': |
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124 case '.': |
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125 { |
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4930
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126 std::string typ_nm = type_name (); |
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127 error ("%s cannot be indexed with %c", typ_nm.c_str (), type[0]); |
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4924
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128 } |
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129 break; |
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130 |
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131 default: |
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132 panic_impossible (); |
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133 } |
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134 |
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135 // XXX FIXME XXX -- perhaps there should be an |
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136 // octave_value_list::next_subsref member function? See also |
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137 // octave_builtin::subsref. |
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138 |
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139 if (idx.size () > 1) |
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4994
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140 retval = retval(0).next_subsref (nargout, type, idx); |
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4924
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141 |
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142 return retval; |
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143 } |
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144 |
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4988
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145 bool |
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146 octave_fcn_handle::save_ascii (std::ostream& os, bool&, bool) |
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147 { |
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148 os << nm << "\n"; |
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4989
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149 |
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4988
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150 if (nm == "@<anonymous>") |
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151 { |
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4989
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152 print_raw (os, true); |
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153 os << "\n"; |
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4988
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154 } |
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155 |
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156 return true; |
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157 } |
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158 |
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159 bool |
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160 octave_fcn_handle::load_ascii (std::istream& is) |
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161 { |
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162 is >> nm; |
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4989
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163 |
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164 if (nm == "@<anonymous>") |
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165 { |
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166 char c; |
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167 OSSTREAM buf; |
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168 |
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4989
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169 // Skip preceeding newline(s). |
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170 while (is.get (c) && c == '\n') |
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171 /* do nothing */; |
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4988
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172 |
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173 if (is) |
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174 { |
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175 buf << c; |
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176 |
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177 // Get a line of text whitespace characters included, leaving |
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4989
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178 // newline in the stream. |
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179 |
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4988
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180 while (is.peek () != '\n') |
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181 { |
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182 is.get (c); |
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183 if (! is) |
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184 break; |
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185 buf << c; |
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186 } |
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187 } |
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188 |
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189 buf << OSSTREAM_ENDS; |
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190 |
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191 int parse_status; |
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4989
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192 octave_value anon_fcn_handle = eval_string (OSSTREAM_STR (buf), |
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4988
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193 true, parse_status); |
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194 OSSTREAM_FREEZE (buf); |
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195 |
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4989
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196 if (parse_status == 0) |
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197 { |
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198 octave_fcn_handle *fh = anon_fcn_handle.fcn_handle_value (); |
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199 if (fh) |
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200 fcn = fh->fcn; |
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201 else |
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202 return false; |
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203 } |
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204 else |
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205 return false; |
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4988
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206 } |
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207 else |
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208 { |
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209 fcn = lookup_function (nm); |
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210 if (! fcn.is_function ()) |
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211 return false; |
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212 } |
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213 |
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214 return true; |
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215 } |
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216 |
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217 bool |
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218 octave_fcn_handle::save_binary (std::ostream& os, bool&) |
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219 { |
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220 FOUR_BYTE_INT tmp = nm.length (); |
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221 os.write (X_CAST (char *, &tmp), 4); |
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222 os.write (nm.c_str (), nm.length ()); |
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223 if (nm == "@<anonymous>") |
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224 { |
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225 OSSTREAM buf; |
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226 print_raw (buf, true); |
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227 std::string stmp = OSSTREAM_STR (buf); |
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228 OSSTREAM_FREEZE (buf); |
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229 tmp = stmp.length (); |
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230 os.write (X_CAST (char *, &tmp), 4); |
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231 os.write (stmp.c_str (), stmp.length ()); |
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232 } |
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233 return true; |
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234 } |
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235 |
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236 bool |
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237 octave_fcn_handle::load_binary (std::istream& is, bool swap, |
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238 oct_mach_info::float_format) |
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239 { |
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240 FOUR_BYTE_INT tmp; |
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241 if (! is.read (X_CAST (char *, &tmp), 4)) |
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242 return false; |
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243 if (swap) |
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244 swap_bytes<4> (&tmp); |
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245 |
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246 OCTAVE_LOCAL_BUFFER (char, ctmp1, tmp+1); |
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247 is.read (ctmp1, tmp); |
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248 nm = std::string (ctmp1); |
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249 |
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250 if (! is) |
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251 return false; |
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252 |
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253 if (nm == "@<anonymous>") |
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254 { |
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255 if (! is.read (X_CAST (char *, &tmp), 4)) |
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256 return false; |
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257 if (swap) |
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258 swap_bytes<4> (&tmp); |
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259 |
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260 OCTAVE_LOCAL_BUFFER (char, ctmp2, tmp+1); |
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261 is.read (ctmp2, tmp); |
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262 |
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263 int parse_status; |
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264 octave_value anon_fcn_handle = eval_string (ctmp2, true, parse_status); |
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265 |
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4989
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266 if (parse_status == 0) |
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267 { |
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268 octave_fcn_handle *fh = anon_fcn_handle.fcn_handle_value (); |
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269 if (fh) |
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270 fcn = fh->fcn; |
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271 else |
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272 return false; |
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273 } |
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274 else |
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275 return false; |
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4988
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276 } |
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277 else |
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278 { |
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279 fcn = lookup_function (nm); |
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280 if (! fcn.is_function ()) |
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281 return false; |
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282 } |
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283 return true; |
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284 } |
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285 |
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286 #if defined (HAVE_HDF5) |
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287 bool |
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288 octave_fcn_handle::save_hdf5 (hid_t loc_id, const char *name, |
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289 bool /* save_as_floats */) |
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290 { |
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291 hid_t group_hid = -1; |
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292 group_hid = H5Gcreate (loc_id, name, 0); |
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293 if (group_hid < 0 ) return false; |
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294 |
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295 hid_t space_hid = -1, data_hid = -1, type_hid = -1;; |
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296 bool retval = true; |
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297 |
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298 // attach the type of the variable |
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299 type_hid = H5Tcopy (H5T_C_S1); |
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300 H5Tset_size (type_hid, nm.length () + 1); |
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301 if (type_hid < 0) |
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302 { |
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303 H5Gclose (group_hid); |
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304 return false; |
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305 } |
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306 |
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307 OCTAVE_LOCAL_BUFFER (hsize_t, hdims, 2); |
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308 hdims[0] = 0; |
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309 hdims[1] = 0; |
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310 space_hid = H5Screate_simple (0 , hdims, (hsize_t*) 0); |
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311 if (space_hid < 0) |
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312 { |
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313 H5Tclose (type_hid); |
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314 H5Gclose (group_hid); |
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315 return false; |
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316 } |
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317 |
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318 data_hid = H5Dcreate (group_hid, "nm", type_hid, space_hid, H5P_DEFAULT); |
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319 if (data_hid < 0 || H5Dwrite (data_hid, type_hid, H5S_ALL, H5S_ALL, |
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4989
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320 H5P_DEFAULT, |
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4990
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321 X_CAST (void *, nm.c_str ())) < 0) |
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4988
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322 { |
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323 H5Sclose (space_hid); |
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324 H5Tclose (type_hid); |
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325 H5Gclose (group_hid); |
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326 return false; |
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327 } |
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328 H5Dclose (data_hid); |
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329 |
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330 if (nm == "@<anonymous>") |
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331 { |
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332 OSSTREAM buf; |
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333 print_raw (buf, true); |
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334 std::string stmp = OSSTREAM_STR (buf); |
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335 OSSTREAM_FREEZE (buf); |
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336 |
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337 // attach the type of the variable |
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338 H5Tset_size (type_hid, stmp.length () + 1); |
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339 if (type_hid < 0) |
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340 { |
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341 H5Gclose (group_hid); |
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342 return false; |
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343 } |
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344 |
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345 data_hid = H5Dcreate (group_hid, "fcn", type_hid, space_hid, |
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346 H5P_DEFAULT); |
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347 if (data_hid < 0 || H5Dwrite (data_hid, type_hid, H5S_ALL, H5S_ALL, |
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4989
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348 H5P_DEFAULT, |
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4990
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349 X_CAST (void *, stmp.c_str ())) < 0) |
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4988
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350 { |
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351 H5Sclose (space_hid); |
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352 H5Tclose (type_hid); |
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353 H5Gclose (group_hid); |
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354 return false; |
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355 } |
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356 |
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357 H5Dclose (data_hid); |
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358 } |
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359 |
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360 H5Sclose (space_hid); |
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361 H5Tclose (type_hid); |
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362 H5Gclose (group_hid); |
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363 |
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364 return retval; |
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365 } |
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366 |
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367 bool |
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368 octave_fcn_handle::load_hdf5 (hid_t loc_id, const char *name, |
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369 bool /* have_h5giterate_bug */) |
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370 { |
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371 hid_t group_hid, data_hid, space_hid, type_hid, type_class_hid, st_id; |
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372 hsize_t rank; |
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373 int slen; |
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374 |
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375 group_hid = H5Gopen (loc_id, name); |
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376 if (group_hid < 0 ) return false; |
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377 |
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378 data_hid = H5Dopen (group_hid, "nm"); |
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379 |
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380 if (data_hid < 0) |
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381 { |
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382 H5Gclose (group_hid); |
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383 return false; |
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384 } |
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385 |
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386 type_hid = H5Dget_type (data_hid); |
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387 type_class_hid = H5Tget_class (type_hid); |
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388 |
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389 if (type_class_hid != H5T_STRING) |
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390 { |
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391 H5Tclose (type_hid); |
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392 H5Dclose (data_hid); |
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393 H5Gclose (group_hid); |
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394 return false; |
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395 } |
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396 |
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397 space_hid = H5Dget_space (data_hid); |
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398 rank = H5Sget_simple_extent_ndims (space_hid); |
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399 |
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400 if (rank != 0) |
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401 { |
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402 H5Sclose (space_hid); |
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403 H5Tclose (type_hid); |
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404 H5Dclose (data_hid); |
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405 H5Gclose (group_hid); |
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406 return false; |
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407 } |
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408 |
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409 slen = H5Tget_size (type_hid); |
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410 if (slen < 0) |
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411 { |
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412 H5Sclose (space_hid); |
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413 H5Tclose (type_hid); |
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414 H5Dclose (data_hid); |
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415 H5Gclose (group_hid); |
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416 return false; |
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417 } |
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418 |
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419 OCTAVE_LOCAL_BUFFER (char, nm_tmp, slen); |
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420 |
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421 // create datatype for (null-terminated) string to read into: |
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422 st_id = H5Tcopy (H5T_C_S1); |
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423 H5Tset_size (st_id, slen); |
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424 |
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425 if (H5Dread (data_hid, st_id, H5S_ALL, H5S_ALL, H5P_DEFAULT, |
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426 X_CAST (void *, nm_tmp)) < 0) |
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427 { |
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428 H5Sclose (space_hid); |
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429 H5Tclose (type_hid); |
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430 H5Gclose (group_hid); |
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431 return false; |
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432 } |
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433 H5Tclose (st_id); |
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434 H5Dclose (data_hid); |
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435 nm = nm_tmp; |
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436 |
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437 if (nm == "@<anonymous>") |
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438 { |
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439 data_hid = H5Dopen (group_hid, "fcn"); |
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440 |
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441 if (data_hid < 0) |
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442 { |
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443 H5Gclose (group_hid); |
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444 return false; |
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445 } |
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446 |
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447 type_hid = H5Dget_type (data_hid); |
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448 type_class_hid = H5Tget_class (type_hid); |
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449 |
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450 if (type_class_hid != H5T_STRING) |
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451 { |
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452 H5Tclose (type_hid); |
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453 H5Dclose (data_hid); |
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454 H5Gclose (group_hid); |
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455 return false; |
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456 } |
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457 |
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458 space_hid = H5Dget_space (data_hid); |
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|
459 rank = H5Sget_simple_extent_ndims (space_hid); |
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460 |
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461 if (rank != 0) |
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462 { |
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463 H5Sclose (space_hid); |
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|
464 H5Tclose (type_hid); |
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|
465 H5Dclose (data_hid); |
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466 H5Gclose (group_hid); |
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467 return false; |
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|
468 } |
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469 |
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470 slen = H5Tget_size (type_hid); |
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|
471 if (slen < 0) |
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472 { |
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473 H5Sclose (space_hid); |
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474 H5Tclose (type_hid); |
|
|
475 H5Dclose (data_hid); |
|
|
476 H5Gclose (group_hid); |
|
|
477 return false; |
|
|
478 } |
|
|
479 |
|
|
480 OCTAVE_LOCAL_BUFFER (char, fcn_tmp, slen); |
|
|
481 |
|
|
482 // create datatype for (null-terminated) string to read into: |
|
|
483 st_id = H5Tcopy (H5T_C_S1); |
|
|
484 H5Tset_size (st_id, slen); |
|
|
485 |
|
|
486 if (H5Dread (data_hid, st_id, H5S_ALL, H5S_ALL, H5P_DEFAULT, |
|
|
487 X_CAST (void *, fcn_tmp)) < 0) |
|
|
488 { |
|
|
489 H5Sclose (space_hid); |
|
|
490 H5Tclose (type_hid); |
|
|
491 H5Gclose (group_hid); |
|
|
492 return false; |
|
|
493 } |
|
|
494 H5Dclose (data_hid); |
|
|
495 H5Tclose (st_id); |
|
|
496 |
|
|
497 int parse_status; |
|
|
498 octave_value anon_fcn_handle = eval_string (fcn_tmp, true, parse_status); |
|
|
499 |
|
4989
|
500 if (parse_status == 0) |
|
|
501 { |
|
|
502 octave_fcn_handle *fh = anon_fcn_handle.fcn_handle_value (); |
|
|
503 if (fh) |
|
|
504 fcn = fh->fcn; |
|
|
505 else |
|
|
506 return false; |
|
|
507 } |
|
|
508 else |
|
|
509 return false; |
|
4988
|
510 } |
|
|
511 else |
|
|
512 { |
|
|
513 fcn = lookup_function (nm); |
|
|
514 if (! fcn.is_function ()) |
|
|
515 return false; |
|
|
516 } |
|
|
517 |
|
|
518 return true; |
|
|
519 } |
|
|
520 #endif |
|
|
521 |
|
4343
|
522 void |
|
|
523 octave_fcn_handle::print (std::ostream& os, bool pr_as_read_syntax) const |
|
|
524 { |
|
|
525 print_raw (os, pr_as_read_syntax); |
|
|
526 newline (os); |
|
|
527 } |
|
|
528 |
|
|
529 void |
|
|
530 octave_fcn_handle::print_raw (std::ostream& os, bool pr_as_read_syntax) const |
|
|
531 { |
|
4980
|
532 bool printed = false; |
|
|
533 |
|
|
534 if (nm == "@<anonymous>") |
|
|
535 { |
|
|
536 tree_print_code tpc (os); |
|
|
537 |
|
4989
|
538 // FCN is const because this member function is, so we can't |
|
4980
|
539 // use it to call user_function_value, so we make a copy first. |
|
|
540 |
|
|
541 octave_value ftmp = fcn; |
|
|
542 |
|
|
543 octave_user_function *f = ftmp.user_function_value (); |
|
|
544 |
|
|
545 if (f) |
|
|
546 { |
|
|
547 tree_parameter_list *p = f->parameter_list (); |
|
|
548 |
|
|
549 os << "@("; |
|
|
550 |
|
|
551 if (p) |
|
|
552 p->accept (tpc); |
|
|
553 |
|
|
554 os << ") "; |
|
|
555 |
|
|
556 tree_statement_list *b = f->body (); |
|
|
557 |
|
|
558 if (b) |
|
|
559 { |
|
|
560 assert (b->length () == 1); |
|
|
561 |
|
|
562 tree_statement *s = b->front (); |
|
|
563 |
|
|
564 if (s) |
|
|
565 { |
|
|
566 if (s->is_expression ()) |
|
|
567 { |
|
|
568 tree_expression *e = s->expression (); |
|
|
569 |
|
|
570 if (e) |
|
|
571 { |
|
|
572 if (e->is_assignment_expression ()) |
|
|
573 { |
|
|
574 // The parser builds an assignment to |
|
|
575 // __retval__, and we don't want to |
|
|
576 // display that part. |
|
|
577 |
|
|
578 tree_simple_assignment *tsa |
|
|
579 = reinterpret_cast <tree_simple_assignment *> (e); |
|
|
580 tree_expression *rhs = tsa->right_hand_side (); |
|
|
581 |
|
|
582 if (rhs) |
|
|
583 rhs->accept (tpc); |
|
|
584 } |
|
|
585 else |
|
|
586 e->accept (tpc); |
|
|
587 } |
|
|
588 } |
|
|
589 else |
|
|
590 { |
|
|
591 tree_command *c = s->command (); |
|
|
592 |
|
|
593 tpc.suspend_newline (); |
|
|
594 c->accept (tpc); |
|
|
595 tpc.resume_newline (); |
|
|
596 } |
|
|
597 } |
|
|
598 } |
|
|
599 |
|
|
600 printed = true; |
|
|
601 } |
|
|
602 } |
|
|
603 |
|
|
604 if (! printed) |
|
|
605 octave_print_internal (os, nm, pr_as_read_syntax, |
|
|
606 current_print_indent_level ()); |
|
4343
|
607 } |
|
|
608 |
|
|
609 octave_value |
|
|
610 make_fcn_handle (const std::string& nm) |
|
|
611 { |
|
|
612 octave_value retval; |
|
|
613 |
|
4930
|
614 octave_value f = lookup_function (nm); |
|
4343
|
615 |
|
4930
|
616 if (f.is_function ()) |
|
|
617 retval = octave_value (new octave_fcn_handle (f, nm)); |
|
4343
|
618 else |
|
|
619 error ("error creating function handle \"@%s\"", nm.c_str ()); |
|
|
620 |
|
|
621 return retval; |
|
|
622 } |
|
|
623 |
|
4933
|
624 DEFUN (functions, args, , |
|
4343
|
625 "-*- texinfo -*-\n\ |
|
4933
|
626 @deftypefn {Built-in Function} {} functions (@var{fcn_handle})\n\ |
|
|
627 Return a struct containing information about the function handle\n\ |
|
|
628 @var{fcn_handle}.\n\ |
|
|
629 @end deftypefn") |
|
4343
|
630 { |
|
|
631 octave_value retval; |
|
|
632 |
|
4933
|
633 if (args.length () == 1) |
|
4343
|
634 { |
|
4933
|
635 octave_fcn_handle *fh = args(0).fcn_handle_value (); |
|
4343
|
636 |
|
|
637 if (! error_state) |
|
|
638 { |
|
4933
|
639 octave_function *fcn = fh ? fh->function_value (true) : 0; |
|
4343
|
640 |
|
4933
|
641 if (fcn) |
|
4930
|
642 { |
|
4933
|
643 Octave_map m; |
|
4649
|
644 |
|
4933
|
645 std::string fh_nm = fh->fcn_name (); |
|
|
646 |
|
4978
|
647 m.assign ("function", fh_nm); |
|
4343
|
648 |
|
4933
|
649 if (fcn->is_nested_function ()) |
|
|
650 m.assign ("type", "subfunction"); |
|
|
651 else |
|
|
652 m.assign ("type", "simple"); |
|
|
653 |
|
|
654 std::string nm = fcn->fcn_file_name (); |
|
4343
|
655 |
|
4933
|
656 if (nm.empty ()) |
|
4935
|
657 { |
|
|
658 if (fh_nm == "@<anonymous>") |
|
|
659 m.assign ("file", "none"); |
|
5313
|
660 else if (fcn->is_user_function ()) |
|
|
661 m.assign ("file", "command-line function"); |
|
4935
|
662 else |
|
|
663 m.assign ("file", "built-in function"); |
|
|
664 } |
|
4343
|
665 else |
|
4933
|
666 m.assign ("file", nm); |
|
|
667 |
|
|
668 retval = m; |
|
4343
|
669 } |
|
|
670 else |
|
4933
|
671 error ("functions: invalid function handle object"); |
|
4343
|
672 } |
|
|
673 else |
|
4933
|
674 error ("functions: argument must be a function handle object"); |
|
4343
|
675 } |
|
|
676 else |
|
4933
|
677 print_usage ("functions"); |
|
4343
|
678 |
|
|
679 return retval; |
|
|
680 } |
|
|
681 |
|
4933
|
682 DEFUN (func2str, args, , |
|
4343
|
683 "-*- texinfo -*-\n\ |
|
4933
|
684 @deftypefn {Built-in Function} {} func2str (@var{fcn_handle})\n\ |
|
|
685 Return a string containing the name of the function referenced by\n\ |
|
|
686 the function handle @var{fcn_handle}.\n\ |
|
|
687 @end deftypefn") |
|
4343
|
688 { |
|
|
689 octave_value retval; |
|
|
690 |
|
4933
|
691 if (args.length () == 1) |
|
4930
|
692 { |
|
4933
|
693 octave_fcn_handle *fh = args(0).fcn_handle_value (); |
|
4930
|
694 |
|
4933
|
695 if (! error_state && fh) |
|
|
696 { |
|
|
697 std::string fh_nm = fh->fcn_name (); |
|
4978
|
698 retval = fh_nm; |
|
4933
|
699 } |
|
4343
|
700 else |
|
4933
|
701 error ("func2str: expecting valid function handle as first argument"); |
|
4343
|
702 } |
|
|
703 else |
|
4933
|
704 print_usage ("func2str"); |
|
4343
|
705 |
|
|
706 return retval; |
|
|
707 } |
|
|
708 |
|
4933
|
709 DEFUN (str2func, args, , |
|
4343
|
710 "-*- texinfo -*-\n\ |
|
4933
|
711 @deftypefn {Built-in Function} {} str2func (@var{fcn_name})\n\ |
|
|
712 Return a function handle constructed from the string @var{fcn_name}.\n\ |
|
|
713 @end deftypefn") |
|
4343
|
714 { |
|
|
715 octave_value retval; |
|
|
716 |
|
4933
|
717 if (args.length () == 1) |
|
4343
|
718 { |
|
4933
|
719 std::string nm = args(0).string_value (); |
|
4343
|
720 |
|
4933
|
721 if (! error_state) |
|
|
722 retval = make_fcn_handle (nm); |
|
4343
|
723 else |
|
4933
|
724 error ("str2func: expecting string as first argument"); |
|
4343
|
725 } |
|
|
726 else |
|
4933
|
727 print_usage ("str2func"); |
|
4343
|
728 |
|
|
729 return retval; |
|
|
730 } |
|
|
731 |
|
|
732 /* |
|
|
733 ;;; Local Variables: *** |
|
|
734 ;;; mode: C++ *** |
|
|
735 ;;; End: *** |
|
|
736 */ |
