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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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4988
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34 #include <istream> |
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4933
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35 #include <iostream> |
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36 |
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37 #include "defun.h" |
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38 #include "error.h" |
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39 #include "gripes.h" |
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40 #include "oct-map.h" |
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41 #include "ov-base.h" |
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42 #include "ov-fcn-inline.h" |
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43 #include "pr-output.h" |
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44 #include "variables.h" |
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45 #include "parse.h" |
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46 |
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4972
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47 #include "byte-swap.h" |
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48 #include "ls-oct-ascii.h" |
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49 #include "ls-hdf5.h" |
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50 #include "ls-utils.h" |
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51 |
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4933
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52 DEFINE_OCTAVE_ALLOCATOR (octave_fcn_inline); |
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53 |
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54 DEFINE_OV_TYPEID_FUNCTIONS_AND_DATA (octave_fcn_inline, |
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55 "inline function", |
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56 "inline function"); |
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57 |
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58 octave_fcn_inline::octave_fcn_inline (const std::string& f, |
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4973
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59 const string_vector& a, |
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60 const std::string& n) |
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61 : octave_fcn_handle (0, n), iftext (f), ifargs (a) |
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62 { |
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63 // Find a function name that isn't already in the symbol table. |
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4962
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64 std::string fname = unique_symbol_name ("__inline_"); |
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65 |
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66 // Form a string representing the function. |
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67 |
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68 OSSTREAM buf; |
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69 |
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70 buf << "function __retval__ = " << fname << "("; |
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71 |
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72 for (int i = 0; i < ifargs.length (); i++) |
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73 { |
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74 if (i > 0) |
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75 buf << ", "; |
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76 |
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77 buf << ifargs(i); |
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78 } |
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79 |
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80 buf << ")\n __retval__ = " << iftext << ";\nendfunction" << OSSTREAM_ENDS; |
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81 |
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4933
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82 // Parse this function and create a user function. |
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83 |
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84 octave_value eval_args (OSSTREAM_STR (buf)); |
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85 |
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86 feval ("eval", eval_args, 0); |
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87 |
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88 OSSTREAM_FREEZE (buf); |
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89 |
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90 octave_value tmp = lookup_function (fname); |
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91 |
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92 if (tmp.is_function ()) |
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93 { |
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94 fcn = tmp; |
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95 |
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96 clear_function (fname); |
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97 } |
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98 else |
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99 error ("inline: unable to define function"); |
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100 } |
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101 |
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102 bool |
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103 octave_fcn_inline::save_ascii (std::ostream& os, bool&, bool) |
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104 { |
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105 os << "# nargs: " << ifargs.length () << "\n"; |
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106 for (int i = 0; i < ifargs.length (); i++) |
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107 os << ifargs(i) << "\n"; |
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108 if (nm.length () < 1) |
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109 // Write an invalid value to flag empty fcn handle name. |
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110 os << "0\n"; |
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111 else |
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112 os << nm << "\n"; |
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113 os << iftext << "\n"; |
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114 return true; |
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115 } |
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116 |
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117 bool |
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118 octave_fcn_inline::load_ascii (std::istream& is) |
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119 { |
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120 int nargs; |
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121 if (extract_keyword (is, "nargs", nargs, true)) |
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122 { |
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123 ifargs.resize (nargs); |
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124 for (int i = 0; i < nargs; i++) |
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125 is >> ifargs(i); |
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126 is >> nm; |
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127 if (nm == "0") |
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128 nm = ""; |
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129 |
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130 char c; |
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131 OSSTREAM buf; |
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132 |
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133 // Skip preceeding newline(s) |
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134 while (is.get (c) && c == '\n'); |
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135 |
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136 if (is) |
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137 { |
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138 buf << c; |
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139 |
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140 // Get a line of text whitespace characters included, leaving |
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141 // newline in the stream |
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142 while (is.peek () != '\n') |
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143 { |
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144 is.get (c); |
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145 if (! is) |
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146 break; |
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147 buf << c; |
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148 } |
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149 } |
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150 |
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151 buf << OSSTREAM_ENDS; |
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152 iftext = OSSTREAM_STR (buf); |
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153 OSSTREAM_FREEZE (buf); |
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154 |
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155 octave_fcn_inline tmp (iftext, ifargs, nm); |
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156 fcn = tmp.fcn; |
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157 |
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158 return true; |
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159 } |
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160 else |
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161 return false; |
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162 } |
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163 |
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164 bool |
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165 octave_fcn_inline::save_binary (std::ostream& os, bool&) |
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166 { |
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167 FOUR_BYTE_INT tmp = ifargs.length (); |
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168 os.write (X_CAST (char *, &tmp), 4); |
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169 for (int i = 0; i < ifargs.length (); i++) |
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170 { |
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171 tmp = ifargs(i).length (); |
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172 os.write (X_CAST (char *, &tmp), 4); |
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173 os.write (ifargs(i).c_str (), ifargs(i).length ()); |
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174 } |
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175 tmp = nm.length (); |
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176 os.write (X_CAST (char *, &tmp), 4); |
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177 os.write (nm.c_str (), nm.length ()); |
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178 tmp = iftext.length (); |
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179 os.write (X_CAST (char *, &tmp), 4); |
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180 os.write (iftext.c_str (), iftext.length ()); |
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181 return true; |
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182 } |
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183 |
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184 bool |
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185 octave_fcn_inline::load_binary (std::istream& is, bool swap, |
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186 oct_mach_info::float_format) |
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187 { |
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188 FOUR_BYTE_INT nargs; |
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189 if (! is.read (X_CAST (char *, &nargs), 4)) |
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190 return false; |
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191 if (swap) |
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192 swap_bytes<4> (&nargs); |
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193 |
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194 if (nargs < 1) |
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195 return false; |
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196 else |
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197 { |
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198 FOUR_BYTE_INT tmp; |
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199 ifargs.resize (nargs); |
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200 for (int i = 0; i < nargs; i++) |
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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, ctmp, tmp+1); |
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208 is.read (ctmp, tmp); |
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209 ifargs(i) = std::string (ctmp); |
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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 |
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215 if (! is.read (X_CAST (char *, &tmp), 4)) |
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216 return false; |
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217 if (swap) |
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218 swap_bytes<4> (&tmp); |
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219 |
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220 OCTAVE_LOCAL_BUFFER (char, ctmp1, tmp+1); |
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221 is.read (ctmp1, tmp); |
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222 nm = std::string (ctmp1); |
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223 |
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224 if (! is) |
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225 return false; |
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226 |
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227 if (! is.read (X_CAST (char *, &tmp), 4)) |
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228 return false; |
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229 if (swap) |
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230 swap_bytes<4> (&tmp); |
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231 |
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232 OCTAVE_LOCAL_BUFFER (char, ctmp2, tmp+1); |
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233 is.read (ctmp2, tmp); |
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234 iftext = std::string (ctmp2); |
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235 |
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236 if (! is) |
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237 return false; |
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238 |
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239 octave_fcn_inline ftmp (iftext, ifargs, nm); |
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240 fcn = ftmp.fcn; |
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241 } |
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242 return true; |
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243 } |
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244 |
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245 #if defined (HAVE_HDF5) |
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246 bool |
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247 octave_fcn_inline::save_hdf5 (hid_t loc_id, const char *name, |
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248 bool /* save_as_floats */) |
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249 { |
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250 hid_t group_hid = -1; |
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251 group_hid = H5Gcreate (loc_id, name, 0); |
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252 if (group_hid < 0 ) return false; |
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253 |
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254 size_t len = 0; |
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4973
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255 for (int i = 0; i < ifargs.length (); i++) |
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256 if (len < ifargs(i).length ()) |
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257 len = ifargs(i).length (); |
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4972
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258 |
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259 hid_t space_hid = -1, data_hid = -1, type_hid = -1;; |
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260 bool retval = true; |
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261 |
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262 // XXX FIXME XXX Is there a better way of saving string vectors, than a |
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263 // null padded matrix? |
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264 |
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265 OCTAVE_LOCAL_BUFFER (hsize_t, hdims, 2); |
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266 |
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267 // Octave uses column-major, while HDF5 uses row-major ordering |
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4973
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268 hdims[1] = ifargs.length (); |
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4972
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269 hdims[0] = len + 1; |
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270 |
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271 space_hid = H5Screate_simple (2, hdims, 0); |
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272 if (space_hid < 0) |
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273 { |
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274 H5Gclose (group_hid); |
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275 return false; |
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276 } |
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277 |
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4973
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278 data_hid = H5Dcreate (group_hid, "args", H5T_NATIVE_CHAR, space_hid, |
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4972
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279 H5P_DEFAULT); |
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280 if (data_hid < 0) |
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281 { |
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282 H5Sclose (space_hid); |
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283 H5Gclose (group_hid); |
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284 return false; |
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285 } |
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286 |
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4973
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287 OCTAVE_LOCAL_BUFFER (char, s, ifargs.length () * (len + 1)); |
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4972
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288 |
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289 // Save the args as a null teminated list |
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290 for (int i = 0; i < ifargs.length (); i++) |
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291 { |
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292 const char * cptr = ifargs(i).c_str (); |
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293 for (size_t j = 0; j < ifargs(i).length (); j++) |
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294 s[i*(len+1)+j] = *cptr++; |
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4973
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295 s[ifargs(i).length ()] = '\0'; |
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4972
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296 } |
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297 |
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4973
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298 retval = H5Dwrite (data_hid, H5T_NATIVE_CHAR, H5S_ALL, H5S_ALL, |
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4972
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299 H5P_DEFAULT, s) >= 0; |
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300 |
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301 H5Dclose (data_hid); |
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302 H5Sclose (space_hid); |
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303 |
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304 if (!retval) |
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305 { |
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306 H5Gclose (group_hid); |
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307 return false; |
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4973
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308 } |
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4972
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309 |
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310 // attach the type of the variable |
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4973
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311 type_hid = H5Tcopy (H5T_C_S1); |
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4972
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312 H5Tset_size (type_hid, nm.length () + 1); |
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313 if (type_hid < 0) |
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314 { |
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315 H5Gclose (group_hid); |
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316 return false; |
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4973
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317 } |
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4972
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318 |
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319 hdims[0] = 0; |
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320 space_hid = H5Screate_simple (0 , hdims, (hsize_t*) 0); |
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321 if (space_hid < 0) |
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322 { |
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323 H5Tclose (type_hid); |
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324 H5Gclose (group_hid); |
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325 return false; |
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4973
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326 } |
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4972
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327 |
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328 data_hid = H5Dcreate (group_hid, "nm", type_hid, space_hid, H5P_DEFAULT); |
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4973
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329 if (data_hid < 0 || H5Dwrite (data_hid, type_hid, H5S_ALL, H5S_ALL, |
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330 H5P_DEFAULT, (void*) nm.c_str ()) < 0) |
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4972
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331 { |
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332 H5Sclose (space_hid); |
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333 H5Tclose (type_hid); |
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334 H5Gclose (group_hid); |
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335 return false; |
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4973
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336 } |
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4972
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337 H5Dclose (data_hid); |
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338 |
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339 // attach the type of the variable |
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340 H5Tset_size (type_hid, iftext.length () + 1); |
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341 if (type_hid < 0) |
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342 { |
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343 H5Gclose (group_hid); |
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344 return false; |
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4973
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345 } |
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4972
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346 |
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4973
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347 data_hid = H5Dcreate (group_hid, "iftext", type_hid, space_hid, |
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4972
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348 H5P_DEFAULT); |
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4973
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349 if (data_hid < 0 || H5Dwrite (data_hid, type_hid, H5S_ALL, H5S_ALL, |
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350 H5P_DEFAULT, (void*) iftext.c_str ()) < 0) |
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4972
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351 { |
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352 H5Sclose (space_hid); |
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353 H5Tclose (type_hid); |
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354 H5Gclose (group_hid); |
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355 return false; |
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4973
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356 } |
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4972
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357 |
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358 H5Dclose (data_hid); |
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4988
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359 H5Sclose (space_hid); |
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360 H5Tclose (type_hid); |
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361 H5Gclose (group_hid); |
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4972
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362 |
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363 return retval; |
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364 } |
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365 |
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366 bool |
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367 octave_fcn_inline::load_hdf5 (hid_t loc_id, const char *name, |
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4973
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368 bool /* have_h5giterate_bug */) |
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4972
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369 { |
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370 hid_t group_hid, data_hid, space_hid, type_hid, type_class_hid, st_id; |
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371 hsize_t rank; |
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372 int slen; |
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373 |
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374 group_hid = H5Gopen (loc_id, name); |
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375 if (group_hid < 0 ) return false; |
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376 |
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377 data_hid = H5Dopen (group_hid, "args"); |
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378 space_hid = H5Dget_space (data_hid); |
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379 rank = H5Sget_simple_extent_ndims (space_hid); |
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380 |
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381 if (rank != 2) |
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4973
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382 { |
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4972
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383 H5Dclose (data_hid); |
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384 H5Sclose (space_hid); |
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385 H5Gclose (group_hid); |
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386 return false; |
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387 } |
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388 |
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389 OCTAVE_LOCAL_BUFFER (hsize_t, hdims, rank); |
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390 OCTAVE_LOCAL_BUFFER (hsize_t, maxdims, rank); |
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391 |
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392 H5Sget_simple_extent_dims (space_hid, hdims, maxdims); |
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393 |
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4973
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394 ifargs.resize (hdims[1]); |
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4972
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395 |
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396 OCTAVE_LOCAL_BUFFER (char, s1, hdims[0] * hdims[1]); |
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397 |
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4973
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398 if (H5Dread (data_hid, H5T_NATIVE_UCHAR, H5S_ALL, H5S_ALL, |
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4972
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399 H5P_DEFAULT, s1) < 0) |
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4973
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400 { |
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4972
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401 H5Dclose (data_hid); |
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402 H5Sclose (space_hid); |
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403 H5Gclose (group_hid); |
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404 return false; |
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405 } |
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406 |
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407 H5Dclose (data_hid); |
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408 H5Sclose (space_hid); |
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409 |
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410 for (size_t i = 0; i < hdims[1]; i++) |
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411 ifargs(i) = std::string (s1 + i*hdims[0]); |
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412 |
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413 data_hid = H5Dopen (group_hid, "nm"); |
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414 |
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415 if (data_hid < 0) |
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416 { |
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417 H5Gclose (group_hid); |
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418 return false; |
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419 } |
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420 |
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421 type_hid = H5Dget_type (data_hid); |
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422 type_class_hid = H5Tget_class (type_hid); |
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423 |
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424 if (type_class_hid != H5T_STRING) |
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425 { |
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426 H5Tclose (type_hid); |
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427 H5Dclose (data_hid); |
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428 H5Gclose (group_hid); |
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429 return false; |
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430 } |
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4973
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431 |
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4972
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432 space_hid = H5Dget_space (data_hid); |
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433 rank = H5Sget_simple_extent_ndims (space_hid); |
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434 |
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435 if (rank != 0) |
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436 { |
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437 H5Sclose (space_hid); |
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438 H5Tclose (type_hid); |
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439 H5Dclose (data_hid); |
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440 H5Gclose (group_hid); |
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441 return false; |
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442 } |
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443 |
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444 slen = H5Tget_size (type_hid); |
|
|
445 if (slen < 0) |
|
|
446 { |
|
|
447 H5Sclose (space_hid); |
|
|
448 H5Tclose (type_hid); |
|
|
449 H5Dclose (data_hid); |
|
|
450 H5Gclose (group_hid); |
|
|
451 return false; |
|
|
452 } |
|
|
453 |
|
|
454 OCTAVE_LOCAL_BUFFER (char, nm_tmp, slen); |
|
|
455 |
|
|
456 // create datatype for (null-terminated) string to read into: |
|
|
457 st_id = H5Tcopy (H5T_C_S1); |
|
|
458 H5Tset_size (st_id, slen); |
|
|
459 |
|
4973
|
460 if (H5Dread (data_hid, st_id, H5S_ALL, H5S_ALL, H5P_DEFAULT, |
|
|
461 X_CAST (void *, nm_tmp)) < 0) |
|
4972
|
462 { |
|
|
463 H5Sclose (space_hid); |
|
|
464 H5Tclose (type_hid); |
|
|
465 H5Gclose (group_hid); |
|
|
466 return false; |
|
|
467 } |
|
|
468 H5Tclose (st_id); |
|
|
469 H5Dclose (data_hid); |
|
|
470 nm = nm_tmp; |
|
|
471 |
|
|
472 data_hid = H5Dopen (group_hid, "iftext"); |
|
|
473 |
|
|
474 if (data_hid < 0) |
|
|
475 { |
|
|
476 H5Gclose (group_hid); |
|
|
477 return false; |
|
|
478 } |
|
|
479 |
|
|
480 type_hid = H5Dget_type (data_hid); |
|
|
481 type_class_hid = H5Tget_class (type_hid); |
|
|
482 |
|
|
483 if (type_class_hid != H5T_STRING) |
|
|
484 { |
|
|
485 H5Tclose (type_hid); |
|
|
486 H5Dclose (data_hid); |
|
|
487 H5Gclose (group_hid); |
|
|
488 return false; |
|
|
489 } |
|
4973
|
490 |
|
4972
|
491 space_hid = H5Dget_space (data_hid); |
|
|
492 rank = H5Sget_simple_extent_ndims (space_hid); |
|
|
493 |
|
|
494 if (rank != 0) |
|
|
495 { |
|
|
496 H5Sclose (space_hid); |
|
|
497 H5Tclose (type_hid); |
|
|
498 H5Dclose (data_hid); |
|
|
499 H5Gclose (group_hid); |
|
|
500 return false; |
|
|
501 } |
|
|
502 |
|
|
503 slen = H5Tget_size (type_hid); |
|
|
504 if (slen < 0) |
|
|
505 { |
|
|
506 H5Sclose (space_hid); |
|
|
507 H5Tclose (type_hid); |
|
|
508 H5Dclose (data_hid); |
|
|
509 H5Gclose (group_hid); |
|
|
510 return false; |
|
|
511 } |
|
|
512 |
|
|
513 OCTAVE_LOCAL_BUFFER (char, iftext_tmp, slen); |
|
|
514 |
|
|
515 // create datatype for (null-terminated) string to read into: |
|
|
516 st_id = H5Tcopy (H5T_C_S1); |
|
|
517 H5Tset_size (st_id, slen); |
|
|
518 |
|
4973
|
519 if (H5Dread (data_hid, st_id, H5S_ALL, H5S_ALL, H5P_DEFAULT, |
|
|
520 X_CAST (void *, iftext_tmp)) < 0) |
|
4972
|
521 { |
|
|
522 H5Sclose (space_hid); |
|
|
523 H5Tclose (type_hid); |
|
|
524 H5Gclose (group_hid); |
|
|
525 return false; |
|
|
526 } |
|
|
527 H5Tclose (st_id); |
|
|
528 H5Dclose (data_hid); |
|
|
529 iftext = iftext_tmp; |
|
|
530 |
|
|
531 octave_fcn_inline ftmp (iftext, ifargs, nm); |
|
|
532 fcn = ftmp.fcn; |
|
|
533 |
|
|
534 return true; |
|
|
535 } |
|
|
536 #endif |
|
|
537 |
|
4933
|
538 void |
|
|
539 octave_fcn_inline::print (std::ostream& os, bool pr_as_read_syntax) const |
|
|
540 { |
|
|
541 print_raw (os, pr_as_read_syntax); |
|
|
542 newline (os); |
|
|
543 } |
|
|
544 |
|
|
545 void |
|
|
546 octave_fcn_inline::print_raw (std::ostream& os, bool pr_as_read_syntax) const |
|
|
547 { |
|
|
548 OSSTREAM buf; |
|
|
549 |
|
|
550 if (nm.empty ()) |
|
|
551 buf << "f("; |
|
|
552 else |
|
|
553 buf << nm << "("; |
|
|
554 |
|
|
555 for (int i = 0; i < ifargs.length (); i++) |
|
|
556 { |
|
|
557 if (i) |
|
|
558 buf << ", "; |
|
|
559 |
|
|
560 buf << ifargs(i); |
|
|
561 } |
|
|
562 |
|
|
563 buf << ") = " << iftext << OSSTREAM_ENDS; |
|
|
564 |
|
|
565 octave_print_internal (os, OSSTREAM_STR (buf), pr_as_read_syntax, |
|
|
566 current_print_indent_level ()); |
|
|
567 OSSTREAM_FREEZE (buf); |
|
|
568 } |
|
|
569 |
|
|
570 octave_value |
|
|
571 octave_fcn_inline::convert_to_str_internal (bool, bool) const |
|
|
572 { |
|
|
573 return octave_value (fcn_text ()); |
|
|
574 } |
|
|
575 |
|
|
576 DEFUN (inline, args, , |
|
|
577 "-*- texinfo -*-\n\ |
|
|
578 @deftypefn {Built-in Function} {} inline (@var{str})\n\ |
|
|
579 @deftypefnx {Built-in Function} {} inline (@var{str}, @var{arg1}, ...)\n\ |
|
|
580 @deftypefnx {Built-in Function} {} inline (@var{str}, @var{n})\n\ |
|
|
581 Create an inline function from the character string @var{str}.\n\ |
|
|
582 If called with a single argument, the generated function is\n\ |
|
|
583 assumed to have a single argument and will be defined\n\ |
|
|
584 as the first isolated lower case character, except i or j.\n\ |
|
|
585 \n\ |
|
|
586 If the second and subsequent arguments are character strings,\n\ |
|
|
587 they are the names of the arguments of the function.\n\ |
|
|
588 \n\ |
|
|
589 If the second argument is an integer @var{n}, the arguments are\n\ |
|
|
590 @code{\"x\"}, @code{\"P1\"}, @dots{}, @code{\"P@var{N}\"}.\n\ |
|
|
591 @end deftypefn\n\ |
|
|
592 @seealso{argnames, formula, vectorize}") |
|
|
593 { |
|
|
594 octave_value retval; |
|
|
595 |
|
|
596 int nargin = args.length (); |
|
|
597 |
|
|
598 if (nargin > 0) |
|
|
599 { |
|
|
600 std::string fun = args(0).string_value (); |
|
|
601 |
|
|
602 if (! error_state) |
|
|
603 { |
|
|
604 string_vector fargs; |
|
|
605 |
|
|
606 if (nargin == 1) |
|
|
607 { |
|
|
608 fargs.resize (1); |
|
|
609 |
|
|
610 // Find the first isolated string as the argument of the |
|
|
611 // function. |
|
|
612 |
|
|
613 // XXX FIXME XXX -- use just "x" for now. |
|
|
614 fargs(0) = "x"; |
|
|
615 } |
|
|
616 else if (nargin == 2 && args(1).is_numeric_type ()) |
|
|
617 { |
|
|
618 int n = args(1).int_value (); |
|
|
619 |
|
|
620 if (! error_state) |
|
|
621 { |
|
|
622 if (n >= 0) |
|
|
623 { |
|
|
624 fargs.resize (n+1); |
|
|
625 |
|
|
626 fargs(0) = "x"; |
|
|
627 |
|
|
628 for (int i = 1; i < n+1; i++) |
|
|
629 { |
|
|
630 OSSTREAM buf; |
|
|
631 buf << "P" << i << OSSTREAM_ENDS; |
|
|
632 fargs(i) = OSSTREAM_STR (buf); |
|
|
633 OSSTREAM_FREEZE (buf); |
|
|
634 } |
|
|
635 } |
|
|
636 else |
|
|
637 { |
|
|
638 error ("inline: numeric argument must be nonnegative"); |
|
|
639 return retval; |
|
|
640 } |
|
|
641 } |
|
|
642 else |
|
|
643 { |
|
|
644 error ("inline: expecting second argument to be an integer"); |
|
|
645 return retval; |
|
|
646 } |
|
|
647 } |
|
|
648 else |
|
|
649 { |
|
|
650 fargs.resize (nargin - 1); |
|
|
651 |
|
|
652 for (int i = 1; i < nargin; i++) |
|
|
653 { |
|
|
654 std::string s = args(i).string_value (); |
|
|
655 |
|
|
656 if (! error_state) |
|
|
657 fargs(i-1) = s; |
|
|
658 else |
|
|
659 { |
|
|
660 error ("inline: expecting string arguments"); |
|
|
661 return retval; |
|
|
662 } |
|
|
663 } |
|
|
664 } |
|
|
665 |
|
|
666 retval = octave_value (new octave_fcn_inline (fun, fargs)); |
|
|
667 } |
|
|
668 else |
|
|
669 error ("inline: first argument must be a string"); |
|
|
670 } |
|
|
671 else |
|
|
672 print_usage ("inline"); |
|
|
673 |
|
|
674 return retval; |
|
|
675 } |
|
|
676 |
|
|
677 DEFUN (formula, args, , |
|
|
678 "-*- texinfo -*-\n\ |
|
|
679 @deftypefn {Built-in Function} {} formula (@var{fun})\n\ |
|
|
680 Return a character string representing the inline function @var{fun}.\n\ |
|
|
681 Note that @code{char (@var{fun})} is equivalent to\n\ |
|
|
682 @code{formula (@var{fun})}.\n\ |
|
|
683 @end deftypefn\n\ |
|
|
684 @seealso{argnames, inline, vectorize}") |
|
|
685 { |
|
|
686 octave_value retval; |
|
|
687 |
|
|
688 int nargin = args.length (); |
|
|
689 |
|
|
690 if (nargin == 1) |
|
|
691 { |
|
|
692 octave_fcn_inline* fn = args(0).fcn_inline_value (true); |
|
|
693 |
|
|
694 if (fn) |
|
|
695 retval = octave_value (fn->fcn_text ()); |
|
|
696 else |
|
|
697 error ("formula: must be an inline function"); |
|
|
698 } |
|
|
699 else |
|
|
700 print_usage ("formula"); |
|
|
701 |
|
|
702 return retval; |
|
|
703 } |
|
|
704 |
|
|
705 DEFUN (argnames, args, , |
|
|
706 "-*- texinfo -*-\n\ |
|
|
707 @deftypefn {Built-in Function} {} argnames (@var{fun})\n\ |
|
|
708 Return a cell array of character strings containing the names of\n\ |
|
|
709 the arguments of the inline function @var{fun}.\n\ |
|
|
710 @end deftypefn\n\ |
|
|
711 @seealso{argnames, inline, formula, vectorize}") |
|
|
712 { |
|
|
713 octave_value retval; |
|
|
714 |
|
|
715 int nargin = args.length (); |
|
|
716 |
|
|
717 if (nargin == 1) |
|
|
718 { |
|
|
719 octave_fcn_inline *fn = args(0).fcn_inline_value (true); |
|
|
720 |
|
|
721 if (fn) |
|
|
722 { |
|
|
723 string_vector t1 = fn->fcn_arg_names (); |
|
|
724 |
|
|
725 Cell t2 (dim_vector (t1.length (), 1)); |
|
|
726 |
|
|
727 for (int i = 0; i < t1.length (); i++) |
|
|
728 t2(i) = t1(i); |
|
|
729 |
|
|
730 retval = t2; |
|
|
731 } |
|
|
732 else |
|
|
733 error ("argnames: argument must be an inline function"); |
|
|
734 } |
|
|
735 else |
|
|
736 print_usage ("argnames"); |
|
|
737 |
|
|
738 return retval; |
|
|
739 } |
|
|
740 |
|
|
741 DEFUN (vectorize, args, , |
|
|
742 "-*- texinfo -*-\n\ |
|
|
743 @deftypefn {Built-in Function} {} argnames (@var{fun})\n\ |
|
|
744 Create a vectorized version of the inline function @var{fun}\n\ |
|
|
745 by replacing all occurrences of @code{*}, @code{/}, etc., with\n\ |
|
|
746 @code{.*}, @code{./}, etc.\n\ |
|
|
747 @end deftypefn\n\ |
|
|
748 @seealso{argnames, inline, formula, vectorize}") |
|
|
749 { |
|
|
750 octave_value retval; |
|
|
751 |
|
|
752 int nargin = args.length (); |
|
|
753 |
|
|
754 if (nargin == 1) |
|
|
755 { |
|
|
756 octave_fcn_inline* old = args(0).fcn_inline_value (true); |
|
|
757 |
|
|
758 if (old) |
|
|
759 { |
|
|
760 std::string old_func = old->fcn_text (); |
|
|
761 std::string new_func; |
|
|
762 |
|
|
763 size_t i = 0; |
|
|
764 |
|
|
765 while (i < old_func.length ()) |
|
|
766 { |
|
|
767 std::string t1 = old_func.substr (i, 1); |
|
|
768 |
|
|
769 if (t1 == "*" || t1 == "/" || t1 == "\\" || t1 == "^") |
|
|
770 { |
|
|
771 if (i && old_func.substr (i-1, 1) != ".") |
|
|
772 new_func.append ("."); |
|
|
773 |
|
|
774 // Special case for ** operator. |
|
4973
|
775 if (t1 == "*" && i < (old_func.length () - 1) |
|
4933
|
776 && old_func.substr (i+1, 1) == "*") |
|
|
777 { |
|
|
778 new_func.append ("*"); |
|
|
779 i++; |
|
|
780 } |
|
|
781 } |
|
|
782 new_func.append (t1); |
|
|
783 i++; |
|
|
784 } |
|
|
785 |
|
|
786 retval = octave_value (new octave_fcn_inline (new_func, old->fcn_arg_names ())); |
|
|
787 } |
|
|
788 else |
|
|
789 error ("vectorize: must be an inline function"); |
|
|
790 } |
|
|
791 else |
|
|
792 print_usage ("vectorize"); |
|
|
793 |
|
|
794 return retval; |
|
|
795 } |
|
|
796 |
|
|
797 /* |
|
|
798 ;;; Local Variables: *** |
|
|
799 ;;; mode: C++ *** |
|
|
800 ;;; End: *** |
|
|
801 */ |
