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4933
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1 /* |
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2 |
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3 Copyright (C) 2004 David Bateman |
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4 |
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5 This program is free software; you can redistribute it and/or modify it |
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6 under the terms of the GNU General Public License as published by |
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7 the Free Software Foundation; either version 2, or (at your option) |
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8 any later version. |
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9 |
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10 This program is distributed in the hope that it will be useful, but |
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11 WITHOUT ANY WARRANTY; without even the implied warranty of |
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12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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13 General Public License for more details. |
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14 |
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15 You should have received a copy of the GNU General Public License |
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16 along with Octave; see the file COPYING. If not, write to the Free |
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17 Software Foundation, 59 Temple Place - Suite 330, Boston, MA |
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18 02111-1307, USA. |
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19 |
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20 In addition to the terms of the GPL, you are permitted to link |
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21 this program with any Open Source program, as defined by the |
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22 Open Source Initiative (www.opensource.org) |
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23 |
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24 */ |
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25 |
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26 #if defined (__GNUG__) && defined (USE_PRAGMA_INTERFACE_IMPLEMENTATION) |
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27 #pragma implementation |
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28 #endif |
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29 |
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30 #ifdef HAVE_CONFIG_H |
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31 #include <config.h> |
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32 #endif |
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33 |
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34 #include <iostream> |
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35 |
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36 #include "defun.h" |
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37 #include "error.h" |
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38 #include "gripes.h" |
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39 #include "oct-map.h" |
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40 #include "ov-base.h" |
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41 #include "ov-fcn-inline.h" |
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42 #include "pr-output.h" |
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43 #include "variables.h" |
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44 #include "parse.h" |
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45 |
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4972
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46 #include "byte-swap.h" |
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47 #include "ls-oct-ascii.h" |
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48 #include "ls-hdf5.h" |
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49 #include "ls-utils.h" |
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50 |
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4933
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51 DEFINE_OCTAVE_ALLOCATOR (octave_fcn_inline); |
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52 |
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53 DEFINE_OV_TYPEID_FUNCTIONS_AND_DATA (octave_fcn_inline, |
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54 "inline function", |
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55 "inline function"); |
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56 |
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57 octave_fcn_inline::octave_fcn_inline (const std::string& f, |
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4973
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58 const string_vector& a, |
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59 const std::string& n) |
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60 : octave_fcn_handle (0, n), iftext (f), ifargs (a) |
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61 { |
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62 // Find a function name that isn't already in the symbol table. |
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4962
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63 std::string fname = unique_symbol_name ("__inline_"); |
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64 |
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65 // Form a string representing the function. |
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66 |
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67 OSSTREAM buf; |
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68 |
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69 buf << "function __retval__ = " << fname << "("; |
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70 |
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71 for (int i = 0; i < ifargs.length (); i++) |
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72 { |
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73 if (i > 0) |
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74 buf << ", "; |
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75 |
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76 buf << ifargs(i); |
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77 } |
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78 |
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79 buf << ")\n __retval__ = " << iftext << ";\nendfunction" << OSSTREAM_ENDS; |
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80 |
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4933
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81 // Parse this function and create a user function. |
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82 |
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83 octave_value eval_args (OSSTREAM_STR (buf)); |
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84 |
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85 feval ("eval", eval_args, 0); |
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86 |
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87 OSSTREAM_FREEZE (buf); |
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88 |
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89 octave_value tmp = lookup_function (fname); |
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90 |
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91 if (tmp.is_function ()) |
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92 { |
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93 fcn = tmp; |
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94 |
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95 clear_function (fname); |
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96 } |
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97 else |
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98 error ("inline: unable to define function"); |
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99 } |
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100 |
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101 bool |
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102 octave_fcn_inline::save_ascii (std::ostream& os, bool&, bool) |
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103 { |
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104 os << "# nargs: " << ifargs.length () << "\n"; |
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105 for (int i = 0; i < ifargs.length (); i++) |
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106 os << ifargs(i) << "\n"; |
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107 if (nm.length () < 1) |
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108 // Write an invalid value to flag empty fcn handle name. |
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109 os << "0\n"; |
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110 else |
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111 os << nm << "\n"; |
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112 os << iftext << "\n"; |
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113 return true; |
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114 } |
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115 |
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116 bool |
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117 octave_fcn_inline::load_ascii (std::istream& is) |
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118 { |
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119 int nargs; |
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120 if (extract_keyword (is, "nargs", nargs, true)) |
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121 { |
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122 ifargs.resize (nargs); |
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123 for (int i = 0; i < nargs; i++) |
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124 is >> ifargs(i); |
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125 is >> nm; |
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126 if (nm == "0") |
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127 nm = ""; |
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128 is >> iftext; |
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129 |
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130 octave_fcn_inline tmp (iftext, ifargs, nm); |
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131 fcn = tmp.fcn; |
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132 |
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133 return true; |
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134 } |
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135 else |
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136 return false; |
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137 } |
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138 |
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139 bool |
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140 octave_fcn_inline::save_binary (std::ostream& os, bool&) |
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141 { |
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142 FOUR_BYTE_INT tmp = ifargs.length (); |
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143 os.write (X_CAST (char *, &tmp), 4); |
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144 for (int i = 0; i < ifargs.length (); i++) |
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145 { |
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146 tmp = ifargs(i).length (); |
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147 os.write (X_CAST (char *, &tmp), 4); |
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148 os.write (ifargs(i).c_str (), ifargs(i).length ()); |
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149 } |
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150 tmp = nm.length (); |
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151 os.write (X_CAST (char *, &tmp), 4); |
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152 os.write (nm.c_str (), nm.length ()); |
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153 tmp = iftext.length (); |
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154 os.write (X_CAST (char *, &tmp), 4); |
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155 os.write (iftext.c_str (), iftext.length ()); |
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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_inline::load_binary (std::istream& is, bool swap, |
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161 oct_mach_info::float_format) |
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162 { |
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163 FOUR_BYTE_INT nargs; |
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164 if (! is.read (X_CAST (char *, &nargs), 4)) |
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165 return false; |
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166 if (swap) |
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167 swap_bytes<4> (&nargs); |
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168 |
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169 if (nargs < 1) |
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170 return false; |
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171 else |
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172 { |
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173 FOUR_BYTE_INT tmp; |
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174 ifargs.resize (nargs); |
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175 for (int i = 0; i < nargs; i++) |
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176 { |
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177 if (! is.read (X_CAST (char *, &tmp), 4)) |
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178 return false; |
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179 if (swap) |
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180 swap_bytes<4> (&tmp); |
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181 |
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182 OCTAVE_LOCAL_BUFFER (char, ctmp, tmp+1); |
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183 is.read (ctmp, tmp); |
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184 ifargs(i) = std::string (ctmp); |
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185 |
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186 if (! is) |
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187 return false; |
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188 } |
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189 |
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190 if (! is.read (X_CAST (char *, &tmp), 4)) |
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191 return false; |
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192 if (swap) |
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193 swap_bytes<4> (&tmp); |
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194 |
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195 OCTAVE_LOCAL_BUFFER (char, ctmp1, tmp+1); |
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196 is.read (ctmp1, tmp); |
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197 nm = std::string (ctmp1); |
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198 |
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199 if (! is) |
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200 return false; |
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201 |
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202 if (! is.read (X_CAST (char *, &tmp), 4)) |
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203 return false; |
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204 if (swap) |
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205 swap_bytes<4> (&tmp); |
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206 |
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207 OCTAVE_LOCAL_BUFFER (char, ctmp2, tmp+1); |
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208 is.read (ctmp2, tmp); |
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209 iftext = std::string (ctmp2); |
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210 |
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211 if (! is) |
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212 return false; |
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213 |
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214 octave_fcn_inline ftmp (iftext, ifargs, nm); |
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215 fcn = ftmp.fcn; |
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216 } |
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217 return true; |
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218 } |
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219 |
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220 #if defined (HAVE_HDF5) |
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221 bool |
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222 octave_fcn_inline::save_hdf5 (hid_t loc_id, const char *name, |
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223 bool /* save_as_floats */) |
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224 { |
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225 hid_t group_hid = -1; |
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226 group_hid = H5Gcreate (loc_id, name, 0); |
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227 if (group_hid < 0 ) return false; |
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228 |
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229 size_t len = 0; |
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230 for (int i = 0; i < ifargs.length (); i++) |
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231 if (len < ifargs(i).length ()) |
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232 len = ifargs(i).length (); |
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233 |
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234 hid_t space_hid = -1, data_hid = -1, type_hid = -1;; |
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235 bool retval = true; |
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236 |
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237 // XXX FIXME XXX Is there a better way of saving string vectors, than a |
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238 // null padded matrix? |
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239 |
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240 OCTAVE_LOCAL_BUFFER (hsize_t, hdims, 2); |
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241 |
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242 // Octave uses column-major, while HDF5 uses row-major ordering |
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243 hdims[1] = ifargs.length (); |
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244 hdims[0] = len + 1; |
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245 |
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246 space_hid = H5Screate_simple (2, hdims, 0); |
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247 if (space_hid < 0) |
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248 { |
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249 H5Gclose (group_hid); |
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250 return false; |
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251 } |
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252 |
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4973
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253 data_hid = H5Dcreate (group_hid, "args", H5T_NATIVE_CHAR, space_hid, |
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254 H5P_DEFAULT); |
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255 if (data_hid < 0) |
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256 { |
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257 H5Sclose (space_hid); |
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258 H5Gclose (group_hid); |
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259 return false; |
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260 } |
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261 |
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4973
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262 OCTAVE_LOCAL_BUFFER (char, s, ifargs.length () * (len + 1)); |
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263 |
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264 // Save the args as a null teminated list |
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265 for (int i = 0; i < ifargs.length (); i++) |
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266 { |
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267 const char * cptr = ifargs(i).c_str (); |
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268 for (size_t j = 0; j < ifargs(i).length (); j++) |
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269 s[i*(len+1)+j] = *cptr++; |
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270 s[ifargs(i).length ()] = '\0'; |
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4972
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271 } |
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272 |
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273 retval = H5Dwrite (data_hid, H5T_NATIVE_CHAR, H5S_ALL, H5S_ALL, |
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4972
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274 H5P_DEFAULT, s) >= 0; |
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275 |
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276 H5Dclose (data_hid); |
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277 H5Sclose (space_hid); |
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278 |
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279 if (!retval) |
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280 { |
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281 H5Gclose (group_hid); |
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282 return false; |
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4973
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283 } |
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284 |
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285 // attach the type of the variable |
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286 type_hid = H5Tcopy (H5T_C_S1); |
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287 H5Tset_size (type_hid, nm.length () + 1); |
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288 if (type_hid < 0) |
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289 { |
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290 H5Gclose (group_hid); |
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291 return false; |
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4973
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292 } |
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4972
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293 |
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294 hdims[0] = 0; |
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295 space_hid = H5Screate_simple (0 , hdims, (hsize_t*) 0); |
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296 if (space_hid < 0) |
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297 { |
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298 H5Tclose (type_hid); |
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299 H5Gclose (group_hid); |
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300 return false; |
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4973
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301 } |
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4972
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302 |
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303 data_hid = H5Dcreate (group_hid, "nm", type_hid, space_hid, H5P_DEFAULT); |
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304 if (data_hid < 0 || H5Dwrite (data_hid, type_hid, H5S_ALL, H5S_ALL, |
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305 H5P_DEFAULT, (void*) nm.c_str ()) < 0) |
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4972
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306 { |
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307 H5Sclose (space_hid); |
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308 H5Tclose (type_hid); |
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309 H5Gclose (group_hid); |
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310 return false; |
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4973
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311 } |
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4972
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312 H5Dclose (data_hid); |
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313 |
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314 // attach the type of the variable |
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315 H5Tset_size (type_hid, iftext.length () + 1); |
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316 if (type_hid < 0) |
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317 { |
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318 H5Gclose (group_hid); |
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319 return false; |
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4973
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320 } |
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4972
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321 |
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4973
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322 data_hid = H5Dcreate (group_hid, "iftext", type_hid, space_hid, |
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4972
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323 H5P_DEFAULT); |
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324 if (data_hid < 0 || H5Dwrite (data_hid, type_hid, H5S_ALL, H5S_ALL, |
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325 H5P_DEFAULT, (void*) iftext.c_str ()) < 0) |
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4972
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326 { |
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327 H5Sclose (space_hid); |
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328 H5Tclose (type_hid); |
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329 H5Gclose (group_hid); |
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330 return false; |
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4973
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331 } |
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4972
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332 |
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333 H5Dclose (data_hid); |
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334 |
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335 return retval; |
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336 } |
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337 |
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338 bool |
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339 octave_fcn_inline::load_hdf5 (hid_t loc_id, const char *name, |
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340 bool /* have_h5giterate_bug */) |
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4972
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341 { |
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342 hid_t group_hid, data_hid, space_hid, type_hid, type_class_hid, st_id; |
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343 hsize_t rank; |
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344 int slen; |
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345 |
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346 group_hid = H5Gopen (loc_id, name); |
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347 if (group_hid < 0 ) return false; |
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348 |
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349 data_hid = H5Dopen (group_hid, "args"); |
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350 space_hid = H5Dget_space (data_hid); |
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351 rank = H5Sget_simple_extent_ndims (space_hid); |
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352 |
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353 if (rank != 2) |
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4973
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354 { |
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4972
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355 H5Dclose (data_hid); |
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356 H5Sclose (space_hid); |
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357 H5Gclose (group_hid); |
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358 return false; |
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359 } |
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360 |
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361 OCTAVE_LOCAL_BUFFER (hsize_t, hdims, rank); |
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362 OCTAVE_LOCAL_BUFFER (hsize_t, maxdims, rank); |
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363 |
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364 H5Sget_simple_extent_dims (space_hid, hdims, maxdims); |
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365 |
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4973
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366 ifargs.resize (hdims[1]); |
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367 |
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368 OCTAVE_LOCAL_BUFFER (char, s1, hdims[0] * hdims[1]); |
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369 |
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370 if (H5Dread (data_hid, H5T_NATIVE_UCHAR, H5S_ALL, H5S_ALL, |
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4972
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371 H5P_DEFAULT, s1) < 0) |
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4973
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372 { |
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4972
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373 H5Dclose (data_hid); |
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374 H5Sclose (space_hid); |
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375 H5Gclose (group_hid); |
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376 return false; |
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377 } |
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378 |
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379 H5Dclose (data_hid); |
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380 H5Sclose (space_hid); |
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381 |
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382 for (size_t i = 0; i < hdims[1]; i++) |
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383 ifargs(i) = std::string (s1 + i*hdims[0]); |
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384 |
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385 data_hid = H5Dopen (group_hid, "nm"); |
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386 |
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387 if (data_hid < 0) |
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388 { |
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389 H5Gclose (group_hid); |
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390 return false; |
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391 } |
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392 |
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393 type_hid = H5Dget_type (data_hid); |
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394 type_class_hid = H5Tget_class (type_hid); |
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395 |
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396 if (type_class_hid != H5T_STRING) |
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397 { |
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398 H5Tclose (type_hid); |
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399 H5Dclose (data_hid); |
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400 H5Gclose (group_hid); |
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401 return false; |
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402 } |
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4973
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403 |
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4972
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404 space_hid = H5Dget_space (data_hid); |
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405 rank = H5Sget_simple_extent_ndims (space_hid); |
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406 |
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407 if (rank != 0) |
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408 { |
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409 H5Sclose (space_hid); |
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410 H5Tclose (type_hid); |
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411 H5Dclose (data_hid); |
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412 H5Gclose (group_hid); |
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413 return false; |
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414 } |
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415 |
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416 slen = H5Tget_size (type_hid); |
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417 if (slen < 0) |
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418 { |
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419 H5Sclose (space_hid); |
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420 H5Tclose (type_hid); |
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421 H5Dclose (data_hid); |
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422 H5Gclose (group_hid); |
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423 return false; |
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424 } |
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425 |
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426 OCTAVE_LOCAL_BUFFER (char, nm_tmp, slen); |
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427 |
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428 // create datatype for (null-terminated) string to read into: |
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429 st_id = H5Tcopy (H5T_C_S1); |
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430 H5Tset_size (st_id, slen); |
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431 |
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4973
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432 if (H5Dread (data_hid, st_id, H5S_ALL, H5S_ALL, H5P_DEFAULT, |
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433 X_CAST (void *, nm_tmp)) < 0) |
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4972
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434 { |
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435 H5Sclose (space_hid); |
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436 H5Tclose (type_hid); |
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437 H5Gclose (group_hid); |
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438 return false; |
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439 } |
|
|
440 H5Tclose (st_id); |
|
|
441 H5Dclose (data_hid); |
|
|
442 nm = nm_tmp; |
|
|
443 |
|
|
444 data_hid = H5Dopen (group_hid, "iftext"); |
|
|
445 |
|
|
446 if (data_hid < 0) |
|
|
447 { |
|
|
448 H5Gclose (group_hid); |
|
|
449 return false; |
|
|
450 } |
|
|
451 |
|
|
452 type_hid = H5Dget_type (data_hid); |
|
|
453 type_class_hid = H5Tget_class (type_hid); |
|
|
454 |
|
|
455 if (type_class_hid != H5T_STRING) |
|
|
456 { |
|
|
457 H5Tclose (type_hid); |
|
|
458 H5Dclose (data_hid); |
|
|
459 H5Gclose (group_hid); |
|
|
460 return false; |
|
|
461 } |
|
4973
|
462 |
|
4972
|
463 space_hid = H5Dget_space (data_hid); |
|
|
464 rank = H5Sget_simple_extent_ndims (space_hid); |
|
|
465 |
|
|
466 if (rank != 0) |
|
|
467 { |
|
|
468 H5Sclose (space_hid); |
|
|
469 H5Tclose (type_hid); |
|
|
470 H5Dclose (data_hid); |
|
|
471 H5Gclose (group_hid); |
|
|
472 return false; |
|
|
473 } |
|
|
474 |
|
|
475 slen = H5Tget_size (type_hid); |
|
|
476 if (slen < 0) |
|
|
477 { |
|
|
478 H5Sclose (space_hid); |
|
|
479 H5Tclose (type_hid); |
|
|
480 H5Dclose (data_hid); |
|
|
481 H5Gclose (group_hid); |
|
|
482 return false; |
|
|
483 } |
|
|
484 |
|
|
485 OCTAVE_LOCAL_BUFFER (char, iftext_tmp, slen); |
|
|
486 |
|
|
487 // create datatype for (null-terminated) string to read into: |
|
|
488 st_id = H5Tcopy (H5T_C_S1); |
|
|
489 H5Tset_size (st_id, slen); |
|
|
490 |
|
4973
|
491 if (H5Dread (data_hid, st_id, H5S_ALL, H5S_ALL, H5P_DEFAULT, |
|
|
492 X_CAST (void *, iftext_tmp)) < 0) |
|
4972
|
493 { |
|
|
494 H5Sclose (space_hid); |
|
|
495 H5Tclose (type_hid); |
|
|
496 H5Gclose (group_hid); |
|
|
497 return false; |
|
|
498 } |
|
|
499 H5Tclose (st_id); |
|
|
500 H5Dclose (data_hid); |
|
|
501 iftext = iftext_tmp; |
|
|
502 |
|
|
503 octave_fcn_inline ftmp (iftext, ifargs, nm); |
|
|
504 fcn = ftmp.fcn; |
|
|
505 |
|
|
506 return true; |
|
|
507 } |
|
|
508 #endif |
|
|
509 |
|
4933
|
510 void |
|
|
511 octave_fcn_inline::print (std::ostream& os, bool pr_as_read_syntax) const |
|
|
512 { |
|
|
513 print_raw (os, pr_as_read_syntax); |
|
|
514 newline (os); |
|
|
515 } |
|
|
516 |
|
|
517 void |
|
|
518 octave_fcn_inline::print_raw (std::ostream& os, bool pr_as_read_syntax) const |
|
|
519 { |
|
|
520 OSSTREAM buf; |
|
|
521 |
|
|
522 if (nm.empty ()) |
|
|
523 buf << "f("; |
|
|
524 else |
|
|
525 buf << nm << "("; |
|
|
526 |
|
|
527 for (int i = 0; i < ifargs.length (); i++) |
|
|
528 { |
|
|
529 if (i) |
|
|
530 buf << ", "; |
|
|
531 |
|
|
532 buf << ifargs(i); |
|
|
533 } |
|
|
534 |
|
|
535 buf << ") = " << iftext << OSSTREAM_ENDS; |
|
|
536 |
|
|
537 octave_print_internal (os, OSSTREAM_STR (buf), pr_as_read_syntax, |
|
|
538 current_print_indent_level ()); |
|
|
539 OSSTREAM_FREEZE (buf); |
|
|
540 } |
|
|
541 |
|
|
542 octave_value |
|
|
543 octave_fcn_inline::convert_to_str_internal (bool, bool) const |
|
|
544 { |
|
|
545 return octave_value (fcn_text ()); |
|
|
546 } |
|
|
547 |
|
|
548 DEFUN (inline, args, , |
|
|
549 "-*- texinfo -*-\n\ |
|
|
550 @deftypefn {Built-in Function} {} inline (@var{str})\n\ |
|
|
551 @deftypefnx {Built-in Function} {} inline (@var{str}, @var{arg1}, ...)\n\ |
|
|
552 @deftypefnx {Built-in Function} {} inline (@var{str}, @var{n})\n\ |
|
|
553 Create an inline function from the character string @var{str}.\n\ |
|
|
554 If called with a single argument, the generated function is\n\ |
|
|
555 assumed to have a single argument and will be defined\n\ |
|
|
556 as the first isolated lower case character, except i or j.\n\ |
|
|
557 \n\ |
|
|
558 If the second and subsequent arguments are character strings,\n\ |
|
|
559 they are the names of the arguments of the function.\n\ |
|
|
560 \n\ |
|
|
561 If the second argument is an integer @var{n}, the arguments are\n\ |
|
|
562 @code{\"x\"}, @code{\"P1\"}, @dots{}, @code{\"P@var{N}\"}.\n\ |
|
|
563 @end deftypefn\n\ |
|
|
564 @seealso{argnames, formula, vectorize}") |
|
|
565 { |
|
|
566 octave_value retval; |
|
|
567 |
|
|
568 int nargin = args.length (); |
|
|
569 |
|
|
570 if (nargin > 0) |
|
|
571 { |
|
|
572 std::string fun = args(0).string_value (); |
|
|
573 |
|
|
574 if (! error_state) |
|
|
575 { |
|
|
576 string_vector fargs; |
|
|
577 |
|
|
578 if (nargin == 1) |
|
|
579 { |
|
|
580 fargs.resize (1); |
|
|
581 |
|
|
582 // Find the first isolated string as the argument of the |
|
|
583 // function. |
|
|
584 |
|
|
585 // XXX FIXME XXX -- use just "x" for now. |
|
|
586 fargs(0) = "x"; |
|
|
587 } |
|
|
588 else if (nargin == 2 && args(1).is_numeric_type ()) |
|
|
589 { |
|
|
590 int n = args(1).int_value (); |
|
|
591 |
|
|
592 if (! error_state) |
|
|
593 { |
|
|
594 if (n >= 0) |
|
|
595 { |
|
|
596 fargs.resize (n+1); |
|
|
597 |
|
|
598 fargs(0) = "x"; |
|
|
599 |
|
|
600 for (int i = 1; i < n+1; i++) |
|
|
601 { |
|
|
602 OSSTREAM buf; |
|
|
603 buf << "P" << i << OSSTREAM_ENDS; |
|
|
604 fargs(i) = OSSTREAM_STR (buf); |
|
|
605 OSSTREAM_FREEZE (buf); |
|
|
606 } |
|
|
607 } |
|
|
608 else |
|
|
609 { |
|
|
610 error ("inline: numeric argument must be nonnegative"); |
|
|
611 return retval; |
|
|
612 } |
|
|
613 } |
|
|
614 else |
|
|
615 { |
|
|
616 error ("inline: expecting second argument to be an integer"); |
|
|
617 return retval; |
|
|
618 } |
|
|
619 } |
|
|
620 else |
|
|
621 { |
|
|
622 fargs.resize (nargin - 1); |
|
|
623 |
|
|
624 for (int i = 1; i < nargin; i++) |
|
|
625 { |
|
|
626 std::string s = args(i).string_value (); |
|
|
627 |
|
|
628 if (! error_state) |
|
|
629 fargs(i-1) = s; |
|
|
630 else |
|
|
631 { |
|
|
632 error ("inline: expecting string arguments"); |
|
|
633 return retval; |
|
|
634 } |
|
|
635 } |
|
|
636 } |
|
|
637 |
|
|
638 retval = octave_value (new octave_fcn_inline (fun, fargs)); |
|
|
639 } |
|
|
640 else |
|
|
641 error ("inline: first argument must be a string"); |
|
|
642 } |
|
|
643 else |
|
|
644 print_usage ("inline"); |
|
|
645 |
|
|
646 return retval; |
|
|
647 } |
|
|
648 |
|
|
649 DEFUN (formula, args, , |
|
|
650 "-*- texinfo -*-\n\ |
|
|
651 @deftypefn {Built-in Function} {} formula (@var{fun})\n\ |
|
|
652 Return a character string representing the inline function @var{fun}.\n\ |
|
|
653 Note that @code{char (@var{fun})} is equivalent to\n\ |
|
|
654 @code{formula (@var{fun})}.\n\ |
|
|
655 @end deftypefn\n\ |
|
|
656 @seealso{argnames, inline, vectorize}") |
|
|
657 { |
|
|
658 octave_value retval; |
|
|
659 |
|
|
660 int nargin = args.length (); |
|
|
661 |
|
|
662 if (nargin == 1) |
|
|
663 { |
|
|
664 octave_fcn_inline* fn = args(0).fcn_inline_value (true); |
|
|
665 |
|
|
666 if (fn) |
|
|
667 retval = octave_value (fn->fcn_text ()); |
|
|
668 else |
|
|
669 error ("formula: must be an inline function"); |
|
|
670 } |
|
|
671 else |
|
|
672 print_usage ("formula"); |
|
|
673 |
|
|
674 return retval; |
|
|
675 } |
|
|
676 |
|
|
677 DEFUN (argnames, args, , |
|
|
678 "-*- texinfo -*-\n\ |
|
|
679 @deftypefn {Built-in Function} {} argnames (@var{fun})\n\ |
|
|
680 Return a cell array of character strings containing the names of\n\ |
|
|
681 the arguments of the inline function @var{fun}.\n\ |
|
|
682 @end deftypefn\n\ |
|
|
683 @seealso{argnames, inline, formula, vectorize}") |
|
|
684 { |
|
|
685 octave_value retval; |
|
|
686 |
|
|
687 int nargin = args.length (); |
|
|
688 |
|
|
689 if (nargin == 1) |
|
|
690 { |
|
|
691 octave_fcn_inline *fn = args(0).fcn_inline_value (true); |
|
|
692 |
|
|
693 if (fn) |
|
|
694 { |
|
|
695 string_vector t1 = fn->fcn_arg_names (); |
|
|
696 |
|
|
697 Cell t2 (dim_vector (t1.length (), 1)); |
|
|
698 |
|
|
699 for (int i = 0; i < t1.length (); i++) |
|
|
700 t2(i) = t1(i); |
|
|
701 |
|
|
702 retval = t2; |
|
|
703 } |
|
|
704 else |
|
|
705 error ("argnames: argument must be an inline function"); |
|
|
706 } |
|
|
707 else |
|
|
708 print_usage ("argnames"); |
|
|
709 |
|
|
710 return retval; |
|
|
711 } |
|
|
712 |
|
|
713 DEFUN (vectorize, args, , |
|
|
714 "-*- texinfo -*-\n\ |
|
|
715 @deftypefn {Built-in Function} {} argnames (@var{fun})\n\ |
|
|
716 Create a vectorized version of the inline function @var{fun}\n\ |
|
|
717 by replacing all occurrences of @code{*}, @code{/}, etc., with\n\ |
|
|
718 @code{.*}, @code{./}, etc.\n\ |
|
|
719 @end deftypefn\n\ |
|
|
720 @seealso{argnames, inline, formula, vectorize}") |
|
|
721 { |
|
|
722 octave_value retval; |
|
|
723 |
|
|
724 int nargin = args.length (); |
|
|
725 |
|
|
726 if (nargin == 1) |
|
|
727 { |
|
|
728 octave_fcn_inline* old = args(0).fcn_inline_value (true); |
|
|
729 |
|
|
730 if (old) |
|
|
731 { |
|
|
732 std::string old_func = old->fcn_text (); |
|
|
733 std::string new_func; |
|
|
734 |
|
|
735 size_t i = 0; |
|
|
736 |
|
|
737 while (i < old_func.length ()) |
|
|
738 { |
|
|
739 std::string t1 = old_func.substr (i, 1); |
|
|
740 |
|
|
741 if (t1 == "*" || t1 == "/" || t1 == "\\" || t1 == "^") |
|
|
742 { |
|
|
743 if (i && old_func.substr (i-1, 1) != ".") |
|
|
744 new_func.append ("."); |
|
|
745 |
|
|
746 // Special case for ** operator. |
|
4973
|
747 if (t1 == "*" && i < (old_func.length () - 1) |
|
4933
|
748 && old_func.substr (i+1, 1) == "*") |
|
|
749 { |
|
|
750 new_func.append ("*"); |
|
|
751 i++; |
|
|
752 } |
|
|
753 } |
|
|
754 new_func.append (t1); |
|
|
755 i++; |
|
|
756 } |
|
|
757 |
|
|
758 retval = octave_value (new octave_fcn_inline (new_func, old->fcn_arg_names ())); |
|
|
759 } |
|
|
760 else |
|
|
761 error ("vectorize: must be an inline function"); |
|
|
762 } |
|
|
763 else |
|
|
764 print_usage ("vectorize"); |
|
|
765 |
|
|
766 return retval; |
|
|
767 } |
|
|
768 |
|
|
769 /* |
|
|
770 ;;; Local Variables: *** |
|
|
771 ;;; mode: C++ *** |
|
|
772 ;;; End: *** |
|
|
773 */ |
