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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 #ifdef HAVE_CONFIG_H |
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27 #include <config.h> |
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28 #endif |
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29 |
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4988
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30 #include <istream> |
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4933
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31 #include <iostream> |
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32 |
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33 #include "defun.h" |
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34 #include "error.h" |
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35 #include "gripes.h" |
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36 #include "oct-map.h" |
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37 #include "ov-base.h" |
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38 #include "ov-fcn-inline.h" |
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39 #include "pr-output.h" |
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40 #include "variables.h" |
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41 #include "parse.h" |
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42 |
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4972
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43 #include "byte-swap.h" |
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44 #include "ls-oct-ascii.h" |
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45 #include "ls-hdf5.h" |
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46 #include "ls-utils.h" |
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47 |
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4933
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48 DEFINE_OCTAVE_ALLOCATOR (octave_fcn_inline); |
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49 |
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50 DEFINE_OV_TYPEID_FUNCTIONS_AND_DATA (octave_fcn_inline, |
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51 "inline function", |
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52 "inline function"); |
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53 |
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54 octave_fcn_inline::octave_fcn_inline (const std::string& f, |
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4973
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55 const string_vector& a, |
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56 const std::string& n) |
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57 : octave_fcn_handle (n), iftext (f), ifargs (a) |
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4933
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58 { |
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59 // Form a string representing the function. |
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60 |
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61 OSSTREAM buf; |
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62 |
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63 buf << "@("; |
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64 |
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65 for (int i = 0; i < ifargs.length (); i++) |
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66 { |
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67 if (i > 0) |
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68 buf << ", "; |
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69 |
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70 buf << ifargs(i); |
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71 } |
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72 |
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73 buf << ") " << iftext << OSSTREAM_ENDS; |
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74 |
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75 int parse_status; |
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76 octave_value anon_fcn_handle = eval_string (OSSTREAM_STR (buf), true, |
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77 parse_status); |
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78 |
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79 OSSTREAM_FREEZE (buf); |
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80 |
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81 if (parse_status == 0) |
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82 { |
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83 octave_fcn_handle *fh = anon_fcn_handle.fcn_handle_value (); |
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84 |
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85 if (fh) |
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86 fcn = fh->fcn_val (); |
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87 } |
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88 |
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89 if (fcn.is_undefined ()) |
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90 error ("inline: unable to define function"); |
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91 } |
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92 |
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93 bool |
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94 octave_fcn_inline::save_ascii (std::ostream& os, bool&, bool) |
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95 { |
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96 os << "# nargs: " << ifargs.length () << "\n"; |
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97 for (int i = 0; i < ifargs.length (); i++) |
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98 os << ifargs(i) << "\n"; |
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99 if (nm.length () < 1) |
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100 // Write an invalid value to flag empty fcn handle name. |
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101 os << "0\n"; |
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102 else |
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103 os << nm << "\n"; |
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104 os << iftext << "\n"; |
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105 return true; |
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106 } |
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107 |
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108 bool |
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109 octave_fcn_inline::load_ascii (std::istream& is) |
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110 { |
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111 int nargs; |
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112 if (extract_keyword (is, "nargs", nargs, true)) |
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113 { |
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114 ifargs.resize (nargs); |
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115 for (int i = 0; i < nargs; i++) |
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116 is >> ifargs(i); |
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117 is >> nm; |
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118 if (nm == "0") |
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119 nm = ""; |
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120 |
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121 char c; |
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122 OSSTREAM buf; |
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123 |
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124 // Skip preceeding newline(s) |
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125 while (is.get (c) && c == '\n'); |
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126 |
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127 if (is) |
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128 { |
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129 buf << c; |
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130 |
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131 // Get a line of text whitespace characters included, leaving |
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132 // newline in the stream |
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133 while (is.peek () != '\n') |
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134 { |
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135 is.get (c); |
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136 if (! is) |
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137 break; |
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138 buf << c; |
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139 } |
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140 } |
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141 |
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142 buf << OSSTREAM_ENDS; |
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143 iftext = OSSTREAM_STR (buf); |
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144 OSSTREAM_FREEZE (buf); |
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145 |
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146 octave_fcn_inline tmp (iftext, ifargs, nm); |
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147 fcn = tmp.fcn; |
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148 |
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149 return true; |
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150 } |
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151 else |
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152 return false; |
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153 } |
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154 |
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155 bool |
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156 octave_fcn_inline::save_binary (std::ostream& os, bool&) |
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157 { |
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158 FOUR_BYTE_INT tmp = ifargs.length (); |
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159 os.write (X_CAST (char *, &tmp), 4); |
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160 for (int i = 0; i < ifargs.length (); i++) |
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161 { |
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162 tmp = ifargs(i).length (); |
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163 os.write (X_CAST (char *, &tmp), 4); |
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164 os.write (ifargs(i).c_str (), ifargs(i).length ()); |
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165 } |
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166 tmp = nm.length (); |
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167 os.write (X_CAST (char *, &tmp), 4); |
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168 os.write (nm.c_str (), nm.length ()); |
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169 tmp = iftext.length (); |
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170 os.write (X_CAST (char *, &tmp), 4); |
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171 os.write (iftext.c_str (), iftext.length ()); |
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172 return true; |
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173 } |
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174 |
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175 bool |
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176 octave_fcn_inline::load_binary (std::istream& is, bool swap, |
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177 oct_mach_info::float_format) |
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178 { |
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179 FOUR_BYTE_INT nargs; |
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180 if (! is.read (X_CAST (char *, &nargs), 4)) |
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181 return false; |
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182 if (swap) |
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183 swap_bytes<4> (&nargs); |
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184 |
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185 if (nargs < 1) |
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186 return false; |
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187 else |
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188 { |
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189 FOUR_BYTE_INT tmp; |
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190 ifargs.resize (nargs); |
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191 for (int i = 0; i < nargs; i++) |
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192 { |
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193 if (! is.read (X_CAST (char *, &tmp), 4)) |
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194 return false; |
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195 if (swap) |
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196 swap_bytes<4> (&tmp); |
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197 |
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198 OCTAVE_LOCAL_BUFFER (char, ctmp, tmp+1); |
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199 is.read (ctmp, tmp); |
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200 ifargs(i) = std::string (ctmp); |
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201 |
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202 if (! is) |
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203 return false; |
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204 } |
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205 |
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206 if (! is.read (X_CAST (char *, &tmp), 4)) |
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207 return false; |
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208 if (swap) |
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209 swap_bytes<4> (&tmp); |
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210 |
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211 OCTAVE_LOCAL_BUFFER (char, ctmp1, tmp+1); |
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212 is.read (ctmp1, tmp); |
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213 nm = std::string (ctmp1); |
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214 |
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215 if (! is) |
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216 return false; |
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217 |
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218 if (! is.read (X_CAST (char *, &tmp), 4)) |
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219 return false; |
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220 if (swap) |
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221 swap_bytes<4> (&tmp); |
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222 |
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223 OCTAVE_LOCAL_BUFFER (char, ctmp2, tmp+1); |
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224 is.read (ctmp2, tmp); |
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225 iftext = std::string (ctmp2); |
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226 |
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227 if (! is) |
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228 return false; |
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229 |
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230 octave_fcn_inline ftmp (iftext, ifargs, nm); |
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231 fcn = ftmp.fcn; |
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232 } |
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233 return true; |
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234 } |
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235 |
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236 #if defined (HAVE_HDF5) |
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237 bool |
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238 octave_fcn_inline::save_hdf5 (hid_t loc_id, const char *name, |
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239 bool /* save_as_floats */) |
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240 { |
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241 hid_t group_hid = -1; |
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242 group_hid = H5Gcreate (loc_id, name, 0); |
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243 if (group_hid < 0 ) return false; |
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244 |
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245 size_t len = 0; |
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4973
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246 for (int i = 0; i < ifargs.length (); i++) |
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247 if (len < ifargs(i).length ()) |
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248 len = ifargs(i).length (); |
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4972
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249 |
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250 hid_t space_hid = -1, data_hid = -1, type_hid = -1;; |
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251 bool retval = true; |
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252 |
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253 // XXX FIXME XXX Is there a better way of saving string vectors, than a |
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254 // null padded matrix? |
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255 |
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256 OCTAVE_LOCAL_BUFFER (hsize_t, hdims, 2); |
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257 |
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258 // Octave uses column-major, while HDF5 uses row-major ordering |
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4973
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259 hdims[1] = ifargs.length (); |
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4972
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260 hdims[0] = len + 1; |
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261 |
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262 space_hid = H5Screate_simple (2, hdims, 0); |
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263 if (space_hid < 0) |
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264 { |
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265 H5Gclose (group_hid); |
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266 return false; |
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267 } |
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268 |
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4973
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269 data_hid = H5Dcreate (group_hid, "args", H5T_NATIVE_CHAR, space_hid, |
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270 H5P_DEFAULT); |
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271 if (data_hid < 0) |
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272 { |
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273 H5Sclose (space_hid); |
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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 OCTAVE_LOCAL_BUFFER (char, s, ifargs.length () * (len + 1)); |
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4972
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279 |
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280 // Save the args as a null teminated list |
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281 for (int i = 0; i < ifargs.length (); i++) |
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4972
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282 { |
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283 const char * cptr = ifargs(i).c_str (); |
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284 for (size_t j = 0; j < ifargs(i).length (); j++) |
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285 s[i*(len+1)+j] = *cptr++; |
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4973
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286 s[ifargs(i).length ()] = '\0'; |
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4972
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287 } |
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288 |
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4973
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289 retval = H5Dwrite (data_hid, H5T_NATIVE_CHAR, H5S_ALL, H5S_ALL, |
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4972
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290 H5P_DEFAULT, s) >= 0; |
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291 |
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292 H5Dclose (data_hid); |
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293 H5Sclose (space_hid); |
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294 |
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295 if (!retval) |
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296 { |
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297 H5Gclose (group_hid); |
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298 return false; |
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4973
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299 } |
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4972
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300 |
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301 // attach the type of the variable |
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4973
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302 type_hid = H5Tcopy (H5T_C_S1); |
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4972
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303 H5Tset_size (type_hid, nm.length () + 1); |
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304 if (type_hid < 0) |
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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 hdims[0] = 0; |
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311 space_hid = H5Screate_simple (0 , hdims, (hsize_t*) 0); |
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312 if (space_hid < 0) |
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313 { |
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314 H5Tclose (type_hid); |
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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 data_hid = H5Dcreate (group_hid, "nm", type_hid, space_hid, H5P_DEFAULT); |
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4973
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320 if (data_hid < 0 || H5Dwrite (data_hid, type_hid, H5S_ALL, H5S_ALL, |
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321 H5P_DEFAULT, (void*) nm.c_str ()) < 0) |
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4972
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322 { |
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323 H5Sclose (space_hid); |
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324 H5Tclose (type_hid); |
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325 H5Gclose (group_hid); |
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326 return false; |
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4973
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327 } |
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4972
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328 H5Dclose (data_hid); |
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329 |
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330 // attach the type of the variable |
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331 H5Tset_size (type_hid, iftext.length () + 1); |
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332 if (type_hid < 0) |
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333 { |
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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 |
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4973
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338 data_hid = H5Dcreate (group_hid, "iftext", type_hid, space_hid, |
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4972
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339 H5P_DEFAULT); |
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4973
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340 if (data_hid < 0 || H5Dwrite (data_hid, type_hid, H5S_ALL, H5S_ALL, |
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341 H5P_DEFAULT, (void*) iftext.c_str ()) < 0) |
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4972
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342 { |
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343 H5Sclose (space_hid); |
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344 H5Tclose (type_hid); |
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345 H5Gclose (group_hid); |
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346 return false; |
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4973
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347 } |
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4972
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348 |
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349 H5Dclose (data_hid); |
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4988
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350 H5Sclose (space_hid); |
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351 H5Tclose (type_hid); |
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352 H5Gclose (group_hid); |
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4972
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353 |
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354 return retval; |
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355 } |
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356 |
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357 bool |
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358 octave_fcn_inline::load_hdf5 (hid_t loc_id, const char *name, |
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4973
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359 bool /* have_h5giterate_bug */) |
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4972
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360 { |
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361 hid_t group_hid, data_hid, space_hid, type_hid, type_class_hid, st_id; |
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362 hsize_t rank; |
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363 int slen; |
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364 |
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365 group_hid = H5Gopen (loc_id, name); |
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366 if (group_hid < 0 ) return false; |
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367 |
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368 data_hid = H5Dopen (group_hid, "args"); |
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369 space_hid = H5Dget_space (data_hid); |
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370 rank = H5Sget_simple_extent_ndims (space_hid); |
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371 |
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372 if (rank != 2) |
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4973
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373 { |
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4972
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374 H5Dclose (data_hid); |
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375 H5Sclose (space_hid); |
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376 H5Gclose (group_hid); |
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377 return false; |
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378 } |
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379 |
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380 OCTAVE_LOCAL_BUFFER (hsize_t, hdims, rank); |
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381 OCTAVE_LOCAL_BUFFER (hsize_t, maxdims, rank); |
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382 |
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383 H5Sget_simple_extent_dims (space_hid, hdims, maxdims); |
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384 |
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4973
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385 ifargs.resize (hdims[1]); |
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4972
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386 |
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387 OCTAVE_LOCAL_BUFFER (char, s1, hdims[0] * hdims[1]); |
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388 |
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4973
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389 if (H5Dread (data_hid, H5T_NATIVE_UCHAR, H5S_ALL, H5S_ALL, |
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4972
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390 H5P_DEFAULT, s1) < 0) |
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4973
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391 { |
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4972
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392 H5Dclose (data_hid); |
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393 H5Sclose (space_hid); |
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394 H5Gclose (group_hid); |
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395 return false; |
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396 } |
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397 |
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398 H5Dclose (data_hid); |
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399 H5Sclose (space_hid); |
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400 |
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401 for (size_t i = 0; i < hdims[1]; i++) |
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402 ifargs(i) = std::string (s1 + i*hdims[0]); |
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403 |
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404 data_hid = H5Dopen (group_hid, "nm"); |
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405 |
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406 if (data_hid < 0) |
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407 { |
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408 H5Gclose (group_hid); |
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409 return false; |
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410 } |
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411 |
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412 type_hid = H5Dget_type (data_hid); |
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413 type_class_hid = H5Tget_class (type_hid); |
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414 |
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415 if (type_class_hid != H5T_STRING) |
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416 { |
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417 H5Tclose (type_hid); |
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418 H5Dclose (data_hid); |
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419 H5Gclose (group_hid); |
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420 return false; |
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421 } |
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4973
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422 |
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4972
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423 space_hid = H5Dget_space (data_hid); |
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424 rank = H5Sget_simple_extent_ndims (space_hid); |
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425 |
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426 if (rank != 0) |
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427 { |
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428 H5Sclose (space_hid); |
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429 H5Tclose (type_hid); |
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430 H5Dclose (data_hid); |
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431 H5Gclose (group_hid); |
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432 return false; |
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433 } |
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434 |
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435 slen = H5Tget_size (type_hid); |
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436 if (slen < 0) |
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437 { |
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438 H5Sclose (space_hid); |
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439 H5Tclose (type_hid); |
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440 H5Dclose (data_hid); |
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441 H5Gclose (group_hid); |
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442 return false; |
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443 } |
|
|
444 |
|
|
445 OCTAVE_LOCAL_BUFFER (char, nm_tmp, slen); |
|
|
446 |
|
|
447 // create datatype for (null-terminated) string to read into: |
|
|
448 st_id = H5Tcopy (H5T_C_S1); |
|
|
449 H5Tset_size (st_id, slen); |
|
|
450 |
|
4973
|
451 if (H5Dread (data_hid, st_id, H5S_ALL, H5S_ALL, H5P_DEFAULT, |
|
|
452 X_CAST (void *, nm_tmp)) < 0) |
|
4972
|
453 { |
|
|
454 H5Sclose (space_hid); |
|
|
455 H5Tclose (type_hid); |
|
|
456 H5Gclose (group_hid); |
|
|
457 return false; |
|
|
458 } |
|
|
459 H5Tclose (st_id); |
|
|
460 H5Dclose (data_hid); |
|
|
461 nm = nm_tmp; |
|
|
462 |
|
|
463 data_hid = H5Dopen (group_hid, "iftext"); |
|
|
464 |
|
|
465 if (data_hid < 0) |
|
|
466 { |
|
|
467 H5Gclose (group_hid); |
|
|
468 return false; |
|
|
469 } |
|
|
470 |
|
|
471 type_hid = H5Dget_type (data_hid); |
|
|
472 type_class_hid = H5Tget_class (type_hid); |
|
|
473 |
|
|
474 if (type_class_hid != H5T_STRING) |
|
|
475 { |
|
|
476 H5Tclose (type_hid); |
|
|
477 H5Dclose (data_hid); |
|
|
478 H5Gclose (group_hid); |
|
|
479 return false; |
|
|
480 } |
|
4973
|
481 |
|
4972
|
482 space_hid = H5Dget_space (data_hid); |
|
|
483 rank = H5Sget_simple_extent_ndims (space_hid); |
|
|
484 |
|
|
485 if (rank != 0) |
|
|
486 { |
|
|
487 H5Sclose (space_hid); |
|
|
488 H5Tclose (type_hid); |
|
|
489 H5Dclose (data_hid); |
|
|
490 H5Gclose (group_hid); |
|
|
491 return false; |
|
|
492 } |
|
|
493 |
|
|
494 slen = H5Tget_size (type_hid); |
|
|
495 if (slen < 0) |
|
|
496 { |
|
|
497 H5Sclose (space_hid); |
|
|
498 H5Tclose (type_hid); |
|
|
499 H5Dclose (data_hid); |
|
|
500 H5Gclose (group_hid); |
|
|
501 return false; |
|
|
502 } |
|
|
503 |
|
|
504 OCTAVE_LOCAL_BUFFER (char, iftext_tmp, slen); |
|
|
505 |
|
|
506 // create datatype for (null-terminated) string to read into: |
|
|
507 st_id = H5Tcopy (H5T_C_S1); |
|
|
508 H5Tset_size (st_id, slen); |
|
|
509 |
|
4973
|
510 if (H5Dread (data_hid, st_id, H5S_ALL, H5S_ALL, H5P_DEFAULT, |
|
|
511 X_CAST (void *, iftext_tmp)) < 0) |
|
4972
|
512 { |
|
|
513 H5Sclose (space_hid); |
|
|
514 H5Tclose (type_hid); |
|
|
515 H5Gclose (group_hid); |
|
|
516 return false; |
|
|
517 } |
|
|
518 H5Tclose (st_id); |
|
|
519 H5Dclose (data_hid); |
|
|
520 iftext = iftext_tmp; |
|
|
521 |
|
|
522 octave_fcn_inline ftmp (iftext, ifargs, nm); |
|
|
523 fcn = ftmp.fcn; |
|
|
524 |
|
|
525 return true; |
|
|
526 } |
|
|
527 #endif |
|
|
528 |
|
4933
|
529 void |
|
|
530 octave_fcn_inline::print (std::ostream& os, bool pr_as_read_syntax) const |
|
|
531 { |
|
|
532 print_raw (os, pr_as_read_syntax); |
|
|
533 newline (os); |
|
|
534 } |
|
|
535 |
|
|
536 void |
|
|
537 octave_fcn_inline::print_raw (std::ostream& os, bool pr_as_read_syntax) const |
|
|
538 { |
|
|
539 OSSTREAM buf; |
|
|
540 |
|
|
541 if (nm.empty ()) |
|
|
542 buf << "f("; |
|
|
543 else |
|
|
544 buf << nm << "("; |
|
|
545 |
|
|
546 for (int i = 0; i < ifargs.length (); i++) |
|
|
547 { |
|
|
548 if (i) |
|
|
549 buf << ", "; |
|
|
550 |
|
|
551 buf << ifargs(i); |
|
|
552 } |
|
|
553 |
|
|
554 buf << ") = " << iftext << OSSTREAM_ENDS; |
|
|
555 |
|
|
556 octave_print_internal (os, OSSTREAM_STR (buf), pr_as_read_syntax, |
|
|
557 current_print_indent_level ()); |
|
|
558 OSSTREAM_FREEZE (buf); |
|
|
559 } |
|
|
560 |
|
|
561 octave_value |
|
|
562 octave_fcn_inline::convert_to_str_internal (bool, bool) const |
|
|
563 { |
|
|
564 return octave_value (fcn_text ()); |
|
|
565 } |
|
|
566 |
|
|
567 DEFUN (inline, args, , |
|
|
568 "-*- texinfo -*-\n\ |
|
|
569 @deftypefn {Built-in Function} {} inline (@var{str})\n\ |
|
|
570 @deftypefnx {Built-in Function} {} inline (@var{str}, @var{arg1}, ...)\n\ |
|
|
571 @deftypefnx {Built-in Function} {} inline (@var{str}, @var{n})\n\ |
|
|
572 Create an inline function from the character string @var{str}.\n\ |
|
5034
|
573 If called with a single argument, the arguments of the generated\n\ |
|
|
574 function are extracted from the function itself. The generated\n\ |
|
|
575 function arguments will then be in alphabetical order. It should\n\ |
|
|
576 be noted that i, and j are ignored as arguments due to the\n\ |
|
|
577 ambiguity between their use as a variable or their use as an inbuilt\n\ |
|
|
578 constant. All arguments followed by a parentheses are considered\n\ |
|
|
579 to be functions.\n\ |
|
4933
|
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 { |
|
5034
|
603 bool is_arg = false; |
|
5037
|
604 bool in_string = false; |
|
5034
|
605 std::string tmp_arg; |
|
|
606 size_t i = 0; |
|
|
607 |
|
|
608 while (i < fun.length ()) |
|
|
609 { |
|
5037
|
610 bool terminate_arg = false; |
|
5034
|
611 char c = fun[i++]; |
|
4933
|
612 |
|
5037
|
613 if (in_string) |
|
|
614 { |
|
|
615 if (c == '\'' || c == '\"') |
|
|
616 in_string = false; |
|
|
617 } |
|
|
618 else if (c == '\'' || c == '\"') |
|
|
619 { |
|
|
620 in_string = true; |
|
|
621 if (is_arg) |
|
|
622 terminate_arg = true; |
|
|
623 } |
|
|
624 else if (! isalpha (c) && c != '_') |
|
5034
|
625 if (! is_arg) |
|
|
626 continue; |
|
|
627 else if (isdigit (c)) |
|
5037
|
628 tmp_arg.append (1, c); |
|
5034
|
629 else |
|
|
630 { |
|
5037
|
631 // Before we do anything remove trailing whitespaces. |
|
5034
|
632 while (i < fun.length () && isspace (c)) |
|
|
633 c = fun[i++]; |
|
5037
|
634 |
|
5034
|
635 // Do we have a variable or a function? |
|
|
636 if (c != '(') |
|
5037
|
637 terminate_arg = true; |
|
|
638 else |
|
5034
|
639 { |
|
5037
|
640 tmp_arg = std::string (); |
|
|
641 is_arg = false; |
|
5034
|
642 } |
|
|
643 } |
|
|
644 else |
|
|
645 { |
|
|
646 tmp_arg.append (1, c); |
|
|
647 is_arg = true; |
|
5037
|
648 } |
|
5034
|
649 |
|
5037
|
650 if (terminate_arg || (i == fun.length () && is_arg)) |
|
|
651 { |
|
|
652 bool have_arg = false; |
|
|
653 |
|
|
654 for (int j = 0; j < fargs.length (); j++) |
|
|
655 if (tmp_arg == fargs (j)) |
|
|
656 { |
|
|
657 have_arg = true; |
|
|
658 break; |
|
|
659 } |
|
5034
|
660 |
|
5037
|
661 if (! have_arg && tmp_arg != "i" && tmp_arg != "j") |
|
|
662 fargs.append (tmp_arg); |
|
|
663 |
|
|
664 tmp_arg = std::string (); |
|
|
665 is_arg = false; |
|
5022
|
666 } |
|
|
667 } |
|
5034
|
668 |
|
5037
|
669 // Sort the arguments into ascii order. |
|
5034
|
670 fargs.qsort (); |
|
4933
|
671 } |
|
|
672 else if (nargin == 2 && args(1).is_numeric_type ()) |
|
|
673 { |
|
|
674 int n = args(1).int_value (); |
|
|
675 |
|
|
676 if (! error_state) |
|
|
677 { |
|
|
678 if (n >= 0) |
|
|
679 { |
|
|
680 fargs.resize (n+1); |
|
|
681 |
|
|
682 fargs(0) = "x"; |
|
|
683 |
|
|
684 for (int i = 1; i < n+1; i++) |
|
|
685 { |
|
|
686 OSSTREAM buf; |
|
|
687 buf << "P" << i << OSSTREAM_ENDS; |
|
|
688 fargs(i) = OSSTREAM_STR (buf); |
|
|
689 OSSTREAM_FREEZE (buf); |
|
|
690 } |
|
|
691 } |
|
|
692 else |
|
|
693 { |
|
|
694 error ("inline: numeric argument must be nonnegative"); |
|
|
695 return retval; |
|
|
696 } |
|
|
697 } |
|
|
698 else |
|
|
699 { |
|
|
700 error ("inline: expecting second argument to be an integer"); |
|
|
701 return retval; |
|
|
702 } |
|
|
703 } |
|
|
704 else |
|
|
705 { |
|
|
706 fargs.resize (nargin - 1); |
|
|
707 |
|
|
708 for (int i = 1; i < nargin; i++) |
|
|
709 { |
|
|
710 std::string s = args(i).string_value (); |
|
|
711 |
|
|
712 if (! error_state) |
|
|
713 fargs(i-1) = s; |
|
|
714 else |
|
|
715 { |
|
|
716 error ("inline: expecting string arguments"); |
|
|
717 return retval; |
|
|
718 } |
|
|
719 } |
|
|
720 } |
|
|
721 |
|
|
722 retval = octave_value (new octave_fcn_inline (fun, fargs)); |
|
|
723 } |
|
|
724 else |
|
|
725 error ("inline: first argument must be a string"); |
|
|
726 } |
|
|
727 else |
|
|
728 print_usage ("inline"); |
|
|
729 |
|
|
730 return retval; |
|
|
731 } |
|
|
732 |
|
|
733 DEFUN (formula, args, , |
|
|
734 "-*- texinfo -*-\n\ |
|
|
735 @deftypefn {Built-in Function} {} formula (@var{fun})\n\ |
|
|
736 Return a character string representing the inline function @var{fun}.\n\ |
|
|
737 Note that @code{char (@var{fun})} is equivalent to\n\ |
|
|
738 @code{formula (@var{fun})}.\n\ |
|
|
739 @end deftypefn\n\ |
|
|
740 @seealso{argnames, inline, vectorize}") |
|
|
741 { |
|
|
742 octave_value retval; |
|
|
743 |
|
|
744 int nargin = args.length (); |
|
|
745 |
|
|
746 if (nargin == 1) |
|
|
747 { |
|
|
748 octave_fcn_inline* fn = args(0).fcn_inline_value (true); |
|
|
749 |
|
|
750 if (fn) |
|
|
751 retval = octave_value (fn->fcn_text ()); |
|
|
752 else |
|
|
753 error ("formula: must be an inline function"); |
|
|
754 } |
|
|
755 else |
|
|
756 print_usage ("formula"); |
|
|
757 |
|
|
758 return retval; |
|
|
759 } |
|
|
760 |
|
|
761 DEFUN (argnames, args, , |
|
|
762 "-*- texinfo -*-\n\ |
|
|
763 @deftypefn {Built-in Function} {} argnames (@var{fun})\n\ |
|
|
764 Return a cell array of character strings containing the names of\n\ |
|
|
765 the arguments of the inline function @var{fun}.\n\ |
|
|
766 @end deftypefn\n\ |
|
|
767 @seealso{argnames, inline, formula, vectorize}") |
|
|
768 { |
|
|
769 octave_value retval; |
|
|
770 |
|
|
771 int nargin = args.length (); |
|
|
772 |
|
|
773 if (nargin == 1) |
|
|
774 { |
|
|
775 octave_fcn_inline *fn = args(0).fcn_inline_value (true); |
|
|
776 |
|
|
777 if (fn) |
|
|
778 { |
|
|
779 string_vector t1 = fn->fcn_arg_names (); |
|
|
780 |
|
|
781 Cell t2 (dim_vector (t1.length (), 1)); |
|
|
782 |
|
|
783 for (int i = 0; i < t1.length (); i++) |
|
|
784 t2(i) = t1(i); |
|
|
785 |
|
|
786 retval = t2; |
|
|
787 } |
|
|
788 else |
|
|
789 error ("argnames: argument must be an inline function"); |
|
|
790 } |
|
|
791 else |
|
|
792 print_usage ("argnames"); |
|
|
793 |
|
|
794 return retval; |
|
|
795 } |
|
|
796 |
|
|
797 DEFUN (vectorize, args, , |
|
|
798 "-*- texinfo -*-\n\ |
|
|
799 @deftypefn {Built-in Function} {} argnames (@var{fun})\n\ |
|
|
800 Create a vectorized version of the inline function @var{fun}\n\ |
|
|
801 by replacing all occurrences of @code{*}, @code{/}, etc., with\n\ |
|
|
802 @code{.*}, @code{./}, etc.\n\ |
|
|
803 @end deftypefn\n\ |
|
|
804 @seealso{argnames, inline, formula, vectorize}") |
|
|
805 { |
|
|
806 octave_value retval; |
|
|
807 |
|
|
808 int nargin = args.length (); |
|
|
809 |
|
|
810 if (nargin == 1) |
|
|
811 { |
|
|
812 octave_fcn_inline* old = args(0).fcn_inline_value (true); |
|
|
813 |
|
|
814 if (old) |
|
|
815 { |
|
|
816 std::string old_func = old->fcn_text (); |
|
|
817 std::string new_func; |
|
|
818 |
|
|
819 size_t i = 0; |
|
|
820 |
|
|
821 while (i < old_func.length ()) |
|
|
822 { |
|
|
823 std::string t1 = old_func.substr (i, 1); |
|
|
824 |
|
|
825 if (t1 == "*" || t1 == "/" || t1 == "\\" || t1 == "^") |
|
|
826 { |
|
|
827 if (i && old_func.substr (i-1, 1) != ".") |
|
|
828 new_func.append ("."); |
|
|
829 |
|
|
830 // Special case for ** operator. |
|
4973
|
831 if (t1 == "*" && i < (old_func.length () - 1) |
|
4933
|
832 && old_func.substr (i+1, 1) == "*") |
|
|
833 { |
|
|
834 new_func.append ("*"); |
|
|
835 i++; |
|
|
836 } |
|
|
837 } |
|
|
838 new_func.append (t1); |
|
|
839 i++; |
|
|
840 } |
|
|
841 |
|
|
842 retval = octave_value (new octave_fcn_inline (new_func, old->fcn_arg_names ())); |
|
|
843 } |
|
|
844 else |
|
|
845 error ("vectorize: must be an inline function"); |
|
|
846 } |
|
|
847 else |
|
|
848 print_usage ("vectorize"); |
|
|
849 |
|
|
850 return retval; |
|
|
851 } |
|
|
852 |
|
|
853 /* |
|
|
854 ;;; Local Variables: *** |
|
|
855 ;;; mode: C++ *** |
|
|
856 ;;; End: *** |
|
|
857 */ |
