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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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59 const string_vector& a, |
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60 const std::string& n) |
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61 : octave_fcn_handle (n), iftext (f), ifargs (a) |
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62 { |
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63 // Form a string representing the function. |
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64 |
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65 OSSTREAM buf; |
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66 |
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67 buf << "@("; |
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68 |
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69 for (int i = 0; i < ifargs.length (); i++) |
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70 { |
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71 if (i > 0) |
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72 buf << ", "; |
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73 |
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74 buf << ifargs(i); |
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75 } |
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76 |
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77 buf << ") " << iftext << OSSTREAM_ENDS; |
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78 |
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79 int parse_status; |
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80 octave_value anon_fcn_handle = eval_string (OSSTREAM_STR (buf), true, |
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81 parse_status); |
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82 |
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83 OSSTREAM_FREEZE (buf); |
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84 |
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85 if (parse_status == 0) |
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86 { |
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87 octave_fcn_handle *fh = anon_fcn_handle.fcn_handle_value (); |
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88 |
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89 if (fh) |
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90 fcn = fh->fcn_val (); |
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91 } |
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92 |
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93 if (fcn.is_undefined ()) |
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94 error ("inline: unable to define function"); |
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95 } |
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96 |
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97 bool |
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98 octave_fcn_inline::save_ascii (std::ostream& os, bool&, bool) |
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99 { |
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100 os << "# nargs: " << ifargs.length () << "\n"; |
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101 for (int i = 0; i < ifargs.length (); i++) |
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102 os << ifargs(i) << "\n"; |
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103 if (nm.length () < 1) |
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104 // Write an invalid value to flag empty fcn handle name. |
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105 os << "0\n"; |
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106 else |
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107 os << nm << "\n"; |
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108 os << iftext << "\n"; |
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109 return true; |
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110 } |
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111 |
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112 bool |
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113 octave_fcn_inline::load_ascii (std::istream& is) |
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114 { |
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115 int nargs; |
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116 if (extract_keyword (is, "nargs", nargs, true)) |
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117 { |
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118 ifargs.resize (nargs); |
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119 for (int i = 0; i < nargs; i++) |
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120 is >> ifargs(i); |
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121 is >> nm; |
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122 if (nm == "0") |
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123 nm = ""; |
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124 |
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125 char c; |
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126 OSSTREAM buf; |
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127 |
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128 // Skip preceeding newline(s) |
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129 while (is.get (c) && c == '\n'); |
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130 |
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131 if (is) |
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132 { |
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133 buf << c; |
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134 |
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135 // Get a line of text whitespace characters included, leaving |
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136 // newline in the stream |
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137 while (is.peek () != '\n') |
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138 { |
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139 is.get (c); |
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140 if (! is) |
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141 break; |
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142 buf << c; |
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143 } |
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144 } |
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145 |
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146 buf << OSSTREAM_ENDS; |
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147 iftext = OSSTREAM_STR (buf); |
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148 OSSTREAM_FREEZE (buf); |
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149 |
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150 octave_fcn_inline tmp (iftext, ifargs, nm); |
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151 fcn = tmp.fcn; |
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152 |
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153 return true; |
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154 } |
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155 else |
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156 return false; |
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157 } |
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158 |
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159 bool |
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160 octave_fcn_inline::save_binary (std::ostream& os, bool&) |
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161 { |
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162 FOUR_BYTE_INT tmp = ifargs.length (); |
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163 os.write (X_CAST (char *, &tmp), 4); |
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164 for (int i = 0; i < ifargs.length (); i++) |
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165 { |
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166 tmp = ifargs(i).length (); |
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167 os.write (X_CAST (char *, &tmp), 4); |
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168 os.write (ifargs(i).c_str (), ifargs(i).length ()); |
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169 } |
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170 tmp = nm.length (); |
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171 os.write (X_CAST (char *, &tmp), 4); |
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172 os.write (nm.c_str (), nm.length ()); |
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173 tmp = iftext.length (); |
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174 os.write (X_CAST (char *, &tmp), 4); |
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175 os.write (iftext.c_str (), iftext.length ()); |
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176 return true; |
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177 } |
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178 |
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179 bool |
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180 octave_fcn_inline::load_binary (std::istream& is, bool swap, |
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181 oct_mach_info::float_format) |
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182 { |
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183 FOUR_BYTE_INT nargs; |
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184 if (! is.read (X_CAST (char *, &nargs), 4)) |
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185 return false; |
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186 if (swap) |
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187 swap_bytes<4> (&nargs); |
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188 |
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189 if (nargs < 1) |
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190 return false; |
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191 else |
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192 { |
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193 FOUR_BYTE_INT tmp; |
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194 ifargs.resize (nargs); |
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195 for (int i = 0; i < nargs; i++) |
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196 { |
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197 if (! is.read (X_CAST (char *, &tmp), 4)) |
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198 return false; |
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199 if (swap) |
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200 swap_bytes<4> (&tmp); |
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201 |
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202 OCTAVE_LOCAL_BUFFER (char, ctmp, tmp+1); |
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203 is.read (ctmp, tmp); |
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204 ifargs(i) = std::string (ctmp); |
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205 |
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206 if (! is) |
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207 return false; |
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208 } |
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209 |
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210 if (! is.read (X_CAST (char *, &tmp), 4)) |
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211 return false; |
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212 if (swap) |
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213 swap_bytes<4> (&tmp); |
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214 |
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215 OCTAVE_LOCAL_BUFFER (char, ctmp1, tmp+1); |
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216 is.read (ctmp1, tmp); |
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217 nm = std::string (ctmp1); |
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218 |
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219 if (! is) |
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220 return false; |
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221 |
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222 if (! is.read (X_CAST (char *, &tmp), 4)) |
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223 return false; |
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224 if (swap) |
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225 swap_bytes<4> (&tmp); |
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226 |
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227 OCTAVE_LOCAL_BUFFER (char, ctmp2, tmp+1); |
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228 is.read (ctmp2, tmp); |
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229 iftext = std::string (ctmp2); |
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230 |
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231 if (! is) |
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232 return false; |
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233 |
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234 octave_fcn_inline ftmp (iftext, ifargs, nm); |
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235 fcn = ftmp.fcn; |
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236 } |
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237 return true; |
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238 } |
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239 |
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240 #if defined (HAVE_HDF5) |
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241 bool |
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242 octave_fcn_inline::save_hdf5 (hid_t loc_id, const char *name, |
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243 bool /* save_as_floats */) |
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244 { |
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245 hid_t group_hid = -1; |
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246 group_hid = H5Gcreate (loc_id, name, 0); |
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247 if (group_hid < 0 ) return false; |
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248 |
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249 size_t len = 0; |
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4973
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250 for (int i = 0; i < ifargs.length (); i++) |
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251 if (len < ifargs(i).length ()) |
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252 len = ifargs(i).length (); |
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4972
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253 |
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254 hid_t space_hid = -1, data_hid = -1, type_hid = -1;; |
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255 bool retval = true; |
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256 |
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257 // XXX FIXME XXX Is there a better way of saving string vectors, than a |
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258 // null padded matrix? |
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259 |
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260 OCTAVE_LOCAL_BUFFER (hsize_t, hdims, 2); |
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261 |
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262 // Octave uses column-major, while HDF5 uses row-major ordering |
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4973
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263 hdims[1] = ifargs.length (); |
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4972
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264 hdims[0] = len + 1; |
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265 |
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266 space_hid = H5Screate_simple (2, hdims, 0); |
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267 if (space_hid < 0) |
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268 { |
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269 H5Gclose (group_hid); |
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270 return false; |
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271 } |
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272 |
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4973
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273 data_hid = H5Dcreate (group_hid, "args", H5T_NATIVE_CHAR, space_hid, |
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274 H5P_DEFAULT); |
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275 if (data_hid < 0) |
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276 { |
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277 H5Sclose (space_hid); |
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278 H5Gclose (group_hid); |
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279 return false; |
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280 } |
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281 |
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4973
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282 OCTAVE_LOCAL_BUFFER (char, s, ifargs.length () * (len + 1)); |
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283 |
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284 // Save the args as a null teminated list |
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285 for (int i = 0; i < ifargs.length (); i++) |
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286 { |
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287 const char * cptr = ifargs(i).c_str (); |
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288 for (size_t j = 0; j < ifargs(i).length (); j++) |
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289 s[i*(len+1)+j] = *cptr++; |
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290 s[ifargs(i).length ()] = '\0'; |
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4972
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291 } |
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292 |
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293 retval = H5Dwrite (data_hid, H5T_NATIVE_CHAR, H5S_ALL, H5S_ALL, |
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4972
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294 H5P_DEFAULT, s) >= 0; |
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295 |
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296 H5Dclose (data_hid); |
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297 H5Sclose (space_hid); |
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298 |
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299 if (!retval) |
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300 { |
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301 H5Gclose (group_hid); |
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302 return false; |
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4973
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303 } |
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4972
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304 |
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305 // attach the type of the variable |
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4973
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306 type_hid = H5Tcopy (H5T_C_S1); |
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307 H5Tset_size (type_hid, nm.length () + 1); |
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308 if (type_hid < 0) |
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309 { |
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310 H5Gclose (group_hid); |
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311 return false; |
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4973
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312 } |
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4972
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313 |
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314 hdims[0] = 0; |
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315 space_hid = H5Screate_simple (0 , hdims, (hsize_t*) 0); |
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316 if (space_hid < 0) |
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317 { |
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318 H5Tclose (type_hid); |
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319 H5Gclose (group_hid); |
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320 return false; |
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4973
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321 } |
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4972
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322 |
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323 data_hid = H5Dcreate (group_hid, "nm", type_hid, space_hid, H5P_DEFAULT); |
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4973
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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*) nm.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 H5Dclose (data_hid); |
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333 |
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334 // attach the type of the variable |
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335 H5Tset_size (type_hid, iftext.length () + 1); |
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336 if (type_hid < 0) |
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337 { |
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338 H5Gclose (group_hid); |
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339 return false; |
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4973
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340 } |
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4972
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341 |
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4973
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342 data_hid = H5Dcreate (group_hid, "iftext", type_hid, space_hid, |
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4972
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343 H5P_DEFAULT); |
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4973
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344 if (data_hid < 0 || H5Dwrite (data_hid, type_hid, H5S_ALL, H5S_ALL, |
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345 H5P_DEFAULT, (void*) iftext.c_str ()) < 0) |
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4972
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346 { |
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347 H5Sclose (space_hid); |
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348 H5Tclose (type_hid); |
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349 H5Gclose (group_hid); |
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350 return false; |
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4973
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351 } |
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4972
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352 |
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353 H5Dclose (data_hid); |
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4988
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354 H5Sclose (space_hid); |
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355 H5Tclose (type_hid); |
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356 H5Gclose (group_hid); |
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4972
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357 |
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358 return retval; |
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359 } |
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360 |
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361 bool |
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362 octave_fcn_inline::load_hdf5 (hid_t loc_id, const char *name, |
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4973
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363 bool /* have_h5giterate_bug */) |
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4972
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364 { |
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365 hid_t group_hid, data_hid, space_hid, type_hid, type_class_hid, st_id; |
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366 hsize_t rank; |
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367 int slen; |
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368 |
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369 group_hid = H5Gopen (loc_id, name); |
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370 if (group_hid < 0 ) return false; |
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371 |
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372 data_hid = H5Dopen (group_hid, "args"); |
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373 space_hid = H5Dget_space (data_hid); |
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374 rank = H5Sget_simple_extent_ndims (space_hid); |
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375 |
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376 if (rank != 2) |
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4973
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377 { |
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4972
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378 H5Dclose (data_hid); |
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379 H5Sclose (space_hid); |
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380 H5Gclose (group_hid); |
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381 return false; |
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382 } |
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383 |
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384 OCTAVE_LOCAL_BUFFER (hsize_t, hdims, rank); |
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385 OCTAVE_LOCAL_BUFFER (hsize_t, maxdims, rank); |
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386 |
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387 H5Sget_simple_extent_dims (space_hid, hdims, maxdims); |
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388 |
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4973
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389 ifargs.resize (hdims[1]); |
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4972
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390 |
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391 OCTAVE_LOCAL_BUFFER (char, s1, hdims[0] * hdims[1]); |
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392 |
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4973
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393 if (H5Dread (data_hid, H5T_NATIVE_UCHAR, H5S_ALL, H5S_ALL, |
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4972
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394 H5P_DEFAULT, s1) < 0) |
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4973
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395 { |
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4972
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396 H5Dclose (data_hid); |
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397 H5Sclose (space_hid); |
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398 H5Gclose (group_hid); |
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399 return false; |
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400 } |
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401 |
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402 H5Dclose (data_hid); |
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403 H5Sclose (space_hid); |
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404 |
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405 for (size_t i = 0; i < hdims[1]; i++) |
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406 ifargs(i) = std::string (s1 + i*hdims[0]); |
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407 |
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408 data_hid = H5Dopen (group_hid, "nm"); |
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409 |
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410 if (data_hid < 0) |
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411 { |
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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 type_hid = H5Dget_type (data_hid); |
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417 type_class_hid = H5Tget_class (type_hid); |
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418 |
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419 if (type_class_hid != H5T_STRING) |
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420 { |
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421 H5Tclose (type_hid); |
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422 H5Dclose (data_hid); |
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423 H5Gclose (group_hid); |
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424 return false; |
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425 } |
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4973
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426 |
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4972
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427 space_hid = H5Dget_space (data_hid); |
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428 rank = H5Sget_simple_extent_ndims (space_hid); |
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429 |
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430 if (rank != 0) |
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431 { |
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432 H5Sclose (space_hid); |
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433 H5Tclose (type_hid); |
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434 H5Dclose (data_hid); |
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435 H5Gclose (group_hid); |
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436 return false; |
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437 } |
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438 |
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439 slen = H5Tget_size (type_hid); |
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440 if (slen < 0) |
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441 { |
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442 H5Sclose (space_hid); |
|
|
443 H5Tclose (type_hid); |
|
|
444 H5Dclose (data_hid); |
|
|
445 H5Gclose (group_hid); |
|
|
446 return false; |
|
|
447 } |
|
|
448 |
|
|
449 OCTAVE_LOCAL_BUFFER (char, nm_tmp, slen); |
|
|
450 |
|
|
451 // create datatype for (null-terminated) string to read into: |
|
|
452 st_id = H5Tcopy (H5T_C_S1); |
|
|
453 H5Tset_size (st_id, slen); |
|
|
454 |
|
4973
|
455 if (H5Dread (data_hid, st_id, H5S_ALL, H5S_ALL, H5P_DEFAULT, |
|
|
456 X_CAST (void *, nm_tmp)) < 0) |
|
4972
|
457 { |
|
|
458 H5Sclose (space_hid); |
|
|
459 H5Tclose (type_hid); |
|
|
460 H5Gclose (group_hid); |
|
|
461 return false; |
|
|
462 } |
|
|
463 H5Tclose (st_id); |
|
|
464 H5Dclose (data_hid); |
|
|
465 nm = nm_tmp; |
|
|
466 |
|
|
467 data_hid = H5Dopen (group_hid, "iftext"); |
|
|
468 |
|
|
469 if (data_hid < 0) |
|
|
470 { |
|
|
471 H5Gclose (group_hid); |
|
|
472 return false; |
|
|
473 } |
|
|
474 |
|
|
475 type_hid = H5Dget_type (data_hid); |
|
|
476 type_class_hid = H5Tget_class (type_hid); |
|
|
477 |
|
|
478 if (type_class_hid != H5T_STRING) |
|
|
479 { |
|
|
480 H5Tclose (type_hid); |
|
|
481 H5Dclose (data_hid); |
|
|
482 H5Gclose (group_hid); |
|
|
483 return false; |
|
|
484 } |
|
4973
|
485 |
|
4972
|
486 space_hid = H5Dget_space (data_hid); |
|
|
487 rank = H5Sget_simple_extent_ndims (space_hid); |
|
|
488 |
|
|
489 if (rank != 0) |
|
|
490 { |
|
|
491 H5Sclose (space_hid); |
|
|
492 H5Tclose (type_hid); |
|
|
493 H5Dclose (data_hid); |
|
|
494 H5Gclose (group_hid); |
|
|
495 return false; |
|
|
496 } |
|
|
497 |
|
|
498 slen = H5Tget_size (type_hid); |
|
|
499 if (slen < 0) |
|
|
500 { |
|
|
501 H5Sclose (space_hid); |
|
|
502 H5Tclose (type_hid); |
|
|
503 H5Dclose (data_hid); |
|
|
504 H5Gclose (group_hid); |
|
|
505 return false; |
|
|
506 } |
|
|
507 |
|
|
508 OCTAVE_LOCAL_BUFFER (char, iftext_tmp, slen); |
|
|
509 |
|
|
510 // create datatype for (null-terminated) string to read into: |
|
|
511 st_id = H5Tcopy (H5T_C_S1); |
|
|
512 H5Tset_size (st_id, slen); |
|
|
513 |
|
4973
|
514 if (H5Dread (data_hid, st_id, H5S_ALL, H5S_ALL, H5P_DEFAULT, |
|
|
515 X_CAST (void *, iftext_tmp)) < 0) |
|
4972
|
516 { |
|
|
517 H5Sclose (space_hid); |
|
|
518 H5Tclose (type_hid); |
|
|
519 H5Gclose (group_hid); |
|
|
520 return false; |
|
|
521 } |
|
|
522 H5Tclose (st_id); |
|
|
523 H5Dclose (data_hid); |
|
|
524 iftext = iftext_tmp; |
|
|
525 |
|
|
526 octave_fcn_inline ftmp (iftext, ifargs, nm); |
|
|
527 fcn = ftmp.fcn; |
|
|
528 |
|
|
529 return true; |
|
|
530 } |
|
|
531 #endif |
|
|
532 |
|
4933
|
533 void |
|
|
534 octave_fcn_inline::print (std::ostream& os, bool pr_as_read_syntax) const |
|
|
535 { |
|
|
536 print_raw (os, pr_as_read_syntax); |
|
|
537 newline (os); |
|
|
538 } |
|
|
539 |
|
|
540 void |
|
|
541 octave_fcn_inline::print_raw (std::ostream& os, bool pr_as_read_syntax) const |
|
|
542 { |
|
|
543 OSSTREAM buf; |
|
|
544 |
|
|
545 if (nm.empty ()) |
|
|
546 buf << "f("; |
|
|
547 else |
|
|
548 buf << nm << "("; |
|
|
549 |
|
|
550 for (int i = 0; i < ifargs.length (); i++) |
|
|
551 { |
|
|
552 if (i) |
|
|
553 buf << ", "; |
|
|
554 |
|
|
555 buf << ifargs(i); |
|
|
556 } |
|
|
557 |
|
|
558 buf << ") = " << iftext << OSSTREAM_ENDS; |
|
|
559 |
|
|
560 octave_print_internal (os, OSSTREAM_STR (buf), pr_as_read_syntax, |
|
|
561 current_print_indent_level ()); |
|
|
562 OSSTREAM_FREEZE (buf); |
|
|
563 } |
|
|
564 |
|
|
565 octave_value |
|
|
566 octave_fcn_inline::convert_to_str_internal (bool, bool) const |
|
|
567 { |
|
|
568 return octave_value (fcn_text ()); |
|
|
569 } |
|
|
570 |
|
|
571 DEFUN (inline, args, , |
|
|
572 "-*- texinfo -*-\n\ |
|
|
573 @deftypefn {Built-in Function} {} inline (@var{str})\n\ |
|
|
574 @deftypefnx {Built-in Function} {} inline (@var{str}, @var{arg1}, ...)\n\ |
|
|
575 @deftypefnx {Built-in Function} {} inline (@var{str}, @var{n})\n\ |
|
|
576 Create an inline function from the character string @var{str}.\n\ |
|
|
577 If called with a single argument, the generated function is\n\ |
|
|
578 assumed to have a single argument and will be defined\n\ |
|
|
579 as the first isolated lower case character, except i or j.\n\ |
|
|
580 \n\ |
|
|
581 If the second and subsequent arguments are character strings,\n\ |
|
|
582 they are the names of the arguments of the function.\n\ |
|
|
583 \n\ |
|
|
584 If the second argument is an integer @var{n}, the arguments are\n\ |
|
|
585 @code{\"x\"}, @code{\"P1\"}, @dots{}, @code{\"P@var{N}\"}.\n\ |
|
|
586 @end deftypefn\n\ |
|
|
587 @seealso{argnames, formula, vectorize}") |
|
|
588 { |
|
|
589 octave_value retval; |
|
|
590 |
|
|
591 int nargin = args.length (); |
|
|
592 |
|
|
593 if (nargin > 0) |
|
|
594 { |
|
|
595 std::string fun = args(0).string_value (); |
|
|
596 |
|
|
597 if (! error_state) |
|
|
598 { |
|
|
599 string_vector fargs; |
|
|
600 |
|
|
601 if (nargin == 1) |
|
|
602 { |
|
|
603 fargs.resize (1); |
|
|
604 |
|
|
605 // Find the first isolated string as the argument of the |
|
|
606 // function. |
|
|
607 |
|
|
608 // XXX FIXME XXX -- use just "x" for now. |
|
|
609 fargs(0) = "x"; |
|
|
610 } |
|
|
611 else if (nargin == 2 && args(1).is_numeric_type ()) |
|
|
612 { |
|
|
613 int n = args(1).int_value (); |
|
|
614 |
|
|
615 if (! error_state) |
|
|
616 { |
|
|
617 if (n >= 0) |
|
|
618 { |
|
|
619 fargs.resize (n+1); |
|
|
620 |
|
|
621 fargs(0) = "x"; |
|
|
622 |
|
|
623 for (int i = 1; i < n+1; i++) |
|
|
624 { |
|
|
625 OSSTREAM buf; |
|
|
626 buf << "P" << i << OSSTREAM_ENDS; |
|
|
627 fargs(i) = OSSTREAM_STR (buf); |
|
|
628 OSSTREAM_FREEZE (buf); |
|
|
629 } |
|
|
630 } |
|
|
631 else |
|
|
632 { |
|
|
633 error ("inline: numeric argument must be nonnegative"); |
|
|
634 return retval; |
|
|
635 } |
|
|
636 } |
|
|
637 else |
|
|
638 { |
|
|
639 error ("inline: expecting second argument to be an integer"); |
|
|
640 return retval; |
|
|
641 } |
|
|
642 } |
|
|
643 else |
|
|
644 { |
|
|
645 fargs.resize (nargin - 1); |
|
|
646 |
|
|
647 for (int i = 1; i < nargin; i++) |
|
|
648 { |
|
|
649 std::string s = args(i).string_value (); |
|
|
650 |
|
|
651 if (! error_state) |
|
|
652 fargs(i-1) = s; |
|
|
653 else |
|
|
654 { |
|
|
655 error ("inline: expecting string arguments"); |
|
|
656 return retval; |
|
|
657 } |
|
|
658 } |
|
|
659 } |
|
|
660 |
|
|
661 retval = octave_value (new octave_fcn_inline (fun, fargs)); |
|
|
662 } |
|
|
663 else |
|
|
664 error ("inline: first argument must be a string"); |
|
|
665 } |
|
|
666 else |
|
|
667 print_usage ("inline"); |
|
|
668 |
|
|
669 return retval; |
|
|
670 } |
|
|
671 |
|
|
672 DEFUN (formula, args, , |
|
|
673 "-*- texinfo -*-\n\ |
|
|
674 @deftypefn {Built-in Function} {} formula (@var{fun})\n\ |
|
|
675 Return a character string representing the inline function @var{fun}.\n\ |
|
|
676 Note that @code{char (@var{fun})} is equivalent to\n\ |
|
|
677 @code{formula (@var{fun})}.\n\ |
|
|
678 @end deftypefn\n\ |
|
|
679 @seealso{argnames, inline, vectorize}") |
|
|
680 { |
|
|
681 octave_value retval; |
|
|
682 |
|
|
683 int nargin = args.length (); |
|
|
684 |
|
|
685 if (nargin == 1) |
|
|
686 { |
|
|
687 octave_fcn_inline* fn = args(0).fcn_inline_value (true); |
|
|
688 |
|
|
689 if (fn) |
|
|
690 retval = octave_value (fn->fcn_text ()); |
|
|
691 else |
|
|
692 error ("formula: must be an inline function"); |
|
|
693 } |
|
|
694 else |
|
|
695 print_usage ("formula"); |
|
|
696 |
|
|
697 return retval; |
|
|
698 } |
|
|
699 |
|
|
700 DEFUN (argnames, args, , |
|
|
701 "-*- texinfo -*-\n\ |
|
|
702 @deftypefn {Built-in Function} {} argnames (@var{fun})\n\ |
|
|
703 Return a cell array of character strings containing the names of\n\ |
|
|
704 the arguments of the inline function @var{fun}.\n\ |
|
|
705 @end deftypefn\n\ |
|
|
706 @seealso{argnames, inline, formula, vectorize}") |
|
|
707 { |
|
|
708 octave_value retval; |
|
|
709 |
|
|
710 int nargin = args.length (); |
|
|
711 |
|
|
712 if (nargin == 1) |
|
|
713 { |
|
|
714 octave_fcn_inline *fn = args(0).fcn_inline_value (true); |
|
|
715 |
|
|
716 if (fn) |
|
|
717 { |
|
|
718 string_vector t1 = fn->fcn_arg_names (); |
|
|
719 |
|
|
720 Cell t2 (dim_vector (t1.length (), 1)); |
|
|
721 |
|
|
722 for (int i = 0; i < t1.length (); i++) |
|
|
723 t2(i) = t1(i); |
|
|
724 |
|
|
725 retval = t2; |
|
|
726 } |
|
|
727 else |
|
|
728 error ("argnames: argument must be an inline function"); |
|
|
729 } |
|
|
730 else |
|
|
731 print_usage ("argnames"); |
|
|
732 |
|
|
733 return retval; |
|
|
734 } |
|
|
735 |
|
|
736 DEFUN (vectorize, args, , |
|
|
737 "-*- texinfo -*-\n\ |
|
|
738 @deftypefn {Built-in Function} {} argnames (@var{fun})\n\ |
|
|
739 Create a vectorized version of the inline function @var{fun}\n\ |
|
|
740 by replacing all occurrences of @code{*}, @code{/}, etc., with\n\ |
|
|
741 @code{.*}, @code{./}, etc.\n\ |
|
|
742 @end deftypefn\n\ |
|
|
743 @seealso{argnames, inline, formula, vectorize}") |
|
|
744 { |
|
|
745 octave_value retval; |
|
|
746 |
|
|
747 int nargin = args.length (); |
|
|
748 |
|
|
749 if (nargin == 1) |
|
|
750 { |
|
|
751 octave_fcn_inline* old = args(0).fcn_inline_value (true); |
|
|
752 |
|
|
753 if (old) |
|
|
754 { |
|
|
755 std::string old_func = old->fcn_text (); |
|
|
756 std::string new_func; |
|
|
757 |
|
|
758 size_t i = 0; |
|
|
759 |
|
|
760 while (i < old_func.length ()) |
|
|
761 { |
|
|
762 std::string t1 = old_func.substr (i, 1); |
|
|
763 |
|
|
764 if (t1 == "*" || t1 == "/" || t1 == "\\" || t1 == "^") |
|
|
765 { |
|
|
766 if (i && old_func.substr (i-1, 1) != ".") |
|
|
767 new_func.append ("."); |
|
|
768 |
|
|
769 // Special case for ** operator. |
|
4973
|
770 if (t1 == "*" && i < (old_func.length () - 1) |
|
4933
|
771 && old_func.substr (i+1, 1) == "*") |
|
|
772 { |
|
|
773 new_func.append ("*"); |
|
|
774 i++; |
|
|
775 } |
|
|
776 } |
|
|
777 new_func.append (t1); |
|
|
778 i++; |
|
|
779 } |
|
|
780 |
|
|
781 retval = octave_value (new octave_fcn_inline (new_func, old->fcn_arg_names ())); |
|
|
782 } |
|
|
783 else |
|
|
784 error ("vectorize: must be an inline function"); |
|
|
785 } |
|
|
786 else |
|
|
787 print_usage ("vectorize"); |
|
|
788 |
|
|
789 return retval; |
|
|
790 } |
|
|
791 |
|
|
792 /* |
|
|
793 ;;; Local Variables: *** |
|
|
794 ;;; mode: C++ *** |
|
|
795 ;;; End: *** |
|
|
796 */ |
