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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, Inc., 51 Franklin Street, Fifth Floor, Boston, MA |
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18 02110-1301, 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 #include <sstream> |
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33 #include <vector> |
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34 |
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35 #include "defun.h" |
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36 #include "error.h" |
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37 #include "gripes.h" |
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38 #include "oct-map.h" |
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39 #include "ov-base.h" |
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40 #include "ov-fcn-inline.h" |
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41 #include "pr-output.h" |
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42 #include "variables.h" |
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43 #include "parse.h" |
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44 |
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4972
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45 #include "byte-swap.h" |
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46 #include "ls-oct-ascii.h" |
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47 #include "ls-hdf5.h" |
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48 #include "ls-utils.h" |
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49 |
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4933
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50 DEFINE_OCTAVE_ALLOCATOR (octave_fcn_inline); |
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51 |
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52 DEFINE_OV_TYPEID_FUNCTIONS_AND_DATA (octave_fcn_inline, |
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53 "inline function", |
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6220
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54 "function_handle"); |
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55 |
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56 octave_fcn_inline::octave_fcn_inline (const std::string& f, |
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57 const string_vector& a, |
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58 const std::string& n) |
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59 : octave_fcn_handle (n), iftext (f), ifargs (a) |
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60 { |
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61 // Form a string representing the function. |
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62 |
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63 std::ostringstream buf; |
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64 |
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65 buf << "@("; |
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66 |
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67 for (int i = 0; i < ifargs.length (); i++) |
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68 { |
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69 if (i > 0) |
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70 buf << ", "; |
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71 |
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72 buf << ifargs(i); |
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73 } |
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74 |
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75 buf << ") " << iftext; |
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76 |
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77 int parse_status; |
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78 octave_value anon_fcn_handle = eval_string (buf.str (), true, parse_status); |
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79 |
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80 if (parse_status == 0) |
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81 { |
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82 octave_fcn_handle *fh = anon_fcn_handle.fcn_handle_value (); |
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83 |
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84 if (fh) |
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85 fcn = fh->fcn_val (); |
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86 } |
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87 |
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88 if (fcn.is_undefined ()) |
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89 error ("inline: unable to define function"); |
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90 } |
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91 |
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92 bool |
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93 octave_fcn_inline::save_ascii (std::ostream& os, bool&) |
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94 { |
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95 os << "# nargs: " << ifargs.length () << "\n"; |
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96 for (int i = 0; i < ifargs.length (); i++) |
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97 os << ifargs(i) << "\n"; |
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98 if (nm.length () < 1) |
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99 // Write an invalid value to flag empty fcn handle name. |
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100 os << "0\n"; |
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101 else |
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102 os << nm << "\n"; |
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103 os << iftext << "\n"; |
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104 return true; |
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105 } |
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106 |
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107 bool |
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108 octave_fcn_inline::load_ascii (std::istream& is) |
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109 { |
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110 int nargs; |
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111 if (extract_keyword (is, "nargs", nargs, true)) |
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112 { |
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113 ifargs.resize (nargs); |
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114 for (int i = 0; i < nargs; i++) |
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115 is >> ifargs(i); |
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116 is >> nm; |
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117 if (nm == "0") |
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118 nm = ""; |
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119 |
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120 char c; |
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121 std::ostringstream buf; |
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122 |
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123 // Skip preceeding newline(s) |
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124 while (is.get (c) && c == '\n'); |
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125 |
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126 if (is) |
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127 { |
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128 buf << c; |
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129 |
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130 // Get a line of text whitespace characters included, leaving |
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131 // newline in the stream |
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132 while (is.peek () != '\n') |
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133 { |
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134 is.get (c); |
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135 if (! is) |
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136 break; |
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137 buf << c; |
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138 } |
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139 } |
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140 |
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141 iftext = buf.str (); |
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142 |
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143 octave_fcn_inline tmp (iftext, ifargs, nm); |
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144 fcn = tmp.fcn; |
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145 |
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146 return true; |
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147 } |
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148 else |
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149 return false; |
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150 } |
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151 |
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152 bool |
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153 octave_fcn_inline::save_binary (std::ostream& os, bool&) |
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154 { |
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155 int32_t tmp = ifargs.length (); |
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156 os.write (reinterpret_cast<char *> (&tmp), 4); |
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157 for (int i = 0; i < ifargs.length (); i++) |
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158 { |
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159 tmp = ifargs(i).length (); |
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160 os.write (reinterpret_cast<char *> (&tmp), 4); |
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161 os.write (ifargs(i).c_str (), ifargs(i).length ()); |
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162 } |
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163 tmp = nm.length (); |
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164 os.write (reinterpret_cast<char *> (&tmp), 4); |
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165 os.write (nm.c_str (), nm.length ()); |
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166 tmp = iftext.length (); |
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167 os.write (reinterpret_cast<char *> (&tmp), 4); |
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168 os.write (iftext.c_str (), iftext.length ()); |
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169 return true; |
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170 } |
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171 |
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172 bool |
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173 octave_fcn_inline::load_binary (std::istream& is, bool swap, |
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174 oct_mach_info::float_format) |
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175 { |
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176 int32_t nargs; |
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177 if (! is.read (reinterpret_cast<char *> (&nargs), 4)) |
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178 return false; |
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179 if (swap) |
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180 swap_bytes<4> (&nargs); |
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181 |
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182 if (nargs < 1) |
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183 return false; |
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184 else |
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185 { |
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186 int32_t tmp; |
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187 ifargs.resize (nargs); |
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188 for (int i = 0; i < nargs; i++) |
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189 { |
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190 if (! is.read (reinterpret_cast<char *> (&tmp), 4)) |
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191 return false; |
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192 if (swap) |
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193 swap_bytes<4> (&tmp); |
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194 |
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195 OCTAVE_LOCAL_BUFFER (char, ctmp, tmp+1); |
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196 is.read (ctmp, tmp); |
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197 ifargs(i) = std::string (ctmp); |
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198 |
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199 if (! is) |
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200 return false; |
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201 } |
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202 |
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203 if (! is.read (reinterpret_cast<char *> (&tmp), 4)) |
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204 return false; |
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205 if (swap) |
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206 swap_bytes<4> (&tmp); |
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207 |
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208 OCTAVE_LOCAL_BUFFER (char, ctmp1, tmp+1); |
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209 is.read (ctmp1, tmp); |
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210 nm = std::string (ctmp1); |
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211 |
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212 if (! is) |
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213 return false; |
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214 |
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215 if (! is.read (reinterpret_cast<char *> (&tmp), 4)) |
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216 return false; |
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217 if (swap) |
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218 swap_bytes<4> (&tmp); |
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219 |
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220 OCTAVE_LOCAL_BUFFER (char, ctmp2, tmp+1); |
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221 is.read (ctmp2, tmp); |
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222 iftext = std::string (ctmp2); |
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223 |
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224 if (! is) |
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225 return false; |
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226 |
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227 octave_fcn_inline ftmp (iftext, ifargs, nm); |
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228 fcn = ftmp.fcn; |
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229 } |
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230 return true; |
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231 } |
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232 |
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233 #if defined (HAVE_HDF5) |
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234 bool |
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235 octave_fcn_inline::save_hdf5 (hid_t loc_id, const char *name, |
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236 bool /* save_as_floats */) |
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237 { |
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238 hid_t group_hid = -1; |
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239 group_hid = H5Gcreate (loc_id, name, 0); |
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240 if (group_hid < 0 ) return false; |
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241 |
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242 size_t len = 0; |
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4973
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243 for (int i = 0; i < ifargs.length (); i++) |
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244 if (len < ifargs(i).length ()) |
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245 len = ifargs(i).length (); |
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4972
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246 |
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247 hid_t space_hid = -1, data_hid = -1, type_hid = -1;; |
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248 bool retval = true; |
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249 |
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250 // FIXME Is there a better way of saving string vectors, than a |
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4972
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251 // null padded matrix? |
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252 |
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253 OCTAVE_LOCAL_BUFFER (hsize_t, hdims, 2); |
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254 |
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255 // Octave uses column-major, while HDF5 uses row-major ordering |
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4973
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256 hdims[1] = ifargs.length (); |
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4972
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257 hdims[0] = len + 1; |
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258 |
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259 space_hid = H5Screate_simple (2, hdims, 0); |
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260 if (space_hid < 0) |
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261 { |
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262 H5Gclose (group_hid); |
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263 return false; |
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264 } |
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265 |
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4973
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266 data_hid = H5Dcreate (group_hid, "args", H5T_NATIVE_CHAR, space_hid, |
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267 H5P_DEFAULT); |
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268 if (data_hid < 0) |
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269 { |
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270 H5Sclose (space_hid); |
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271 H5Gclose (group_hid); |
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272 return false; |
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273 } |
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274 |
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4973
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275 OCTAVE_LOCAL_BUFFER (char, s, ifargs.length () * (len + 1)); |
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4972
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276 |
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277 // Save the args as a null teminated list |
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278 for (int i = 0; i < ifargs.length (); i++) |
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279 { |
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280 const char * cptr = ifargs(i).c_str (); |
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281 for (size_t j = 0; j < ifargs(i).length (); j++) |
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282 s[i*(len+1)+j] = *cptr++; |
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4973
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283 s[ifargs(i).length ()] = '\0'; |
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4972
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284 } |
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285 |
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4973
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286 retval = H5Dwrite (data_hid, H5T_NATIVE_CHAR, H5S_ALL, H5S_ALL, |
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4972
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287 H5P_DEFAULT, s) >= 0; |
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288 |
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289 H5Dclose (data_hid); |
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290 H5Sclose (space_hid); |
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291 |
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292 if (!retval) |
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293 { |
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294 H5Gclose (group_hid); |
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295 return false; |
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4973
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296 } |
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4972
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297 |
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298 // attach the type of the variable |
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4973
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299 type_hid = H5Tcopy (H5T_C_S1); |
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4972
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300 H5Tset_size (type_hid, nm.length () + 1); |
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301 if (type_hid < 0) |
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302 { |
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303 H5Gclose (group_hid); |
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304 return false; |
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4973
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305 } |
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4972
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306 |
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307 hdims[0] = 0; |
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308 space_hid = H5Screate_simple (0 , hdims, 0); |
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4972
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309 if (space_hid < 0) |
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310 { |
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311 H5Tclose (type_hid); |
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312 H5Gclose (group_hid); |
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313 return false; |
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4973
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314 } |
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4972
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315 |
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316 data_hid = H5Dcreate (group_hid, "nm", type_hid, space_hid, H5P_DEFAULT); |
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4973
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317 if (data_hid < 0 || H5Dwrite (data_hid, type_hid, H5S_ALL, H5S_ALL, |
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5760
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318 H5P_DEFAULT, nm.c_str ()) < 0) |
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4972
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319 { |
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320 H5Sclose (space_hid); |
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321 H5Tclose (type_hid); |
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322 H5Gclose (group_hid); |
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323 return false; |
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4973
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324 } |
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4972
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325 H5Dclose (data_hid); |
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326 |
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327 // attach the type of the variable |
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328 H5Tset_size (type_hid, iftext.length () + 1); |
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329 if (type_hid < 0) |
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330 { |
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331 H5Gclose (group_hid); |
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332 return false; |
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4973
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333 } |
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4972
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334 |
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4973
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335 data_hid = H5Dcreate (group_hid, "iftext", type_hid, space_hid, |
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4972
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336 H5P_DEFAULT); |
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4973
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337 if (data_hid < 0 || H5Dwrite (data_hid, type_hid, H5S_ALL, H5S_ALL, |
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5760
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338 H5P_DEFAULT, iftext.c_str ()) < 0) |
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4972
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339 { |
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340 H5Sclose (space_hid); |
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341 H5Tclose (type_hid); |
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342 H5Gclose (group_hid); |
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343 return false; |
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4973
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344 } |
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4972
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345 |
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346 H5Dclose (data_hid); |
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4988
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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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4972
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350 |
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351 return retval; |
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352 } |
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353 |
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354 bool |
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355 octave_fcn_inline::load_hdf5 (hid_t loc_id, const char *name, |
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4973
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356 bool /* have_h5giterate_bug */) |
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4972
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357 { |
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358 hid_t group_hid, data_hid, space_hid, type_hid, type_class_hid, st_id; |
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359 hsize_t rank; |
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360 int slen; |
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361 |
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362 group_hid = H5Gopen (loc_id, name); |
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363 if (group_hid < 0 ) return false; |
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364 |
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365 data_hid = H5Dopen (group_hid, "args"); |
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366 space_hid = H5Dget_space (data_hid); |
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367 rank = H5Sget_simple_extent_ndims (space_hid); |
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368 |
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369 if (rank != 2) |
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4973
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370 { |
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4972
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371 H5Dclose (data_hid); |
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372 H5Sclose (space_hid); |
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373 H5Gclose (group_hid); |
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374 return false; |
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375 } |
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376 |
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377 OCTAVE_LOCAL_BUFFER (hsize_t, hdims, rank); |
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378 OCTAVE_LOCAL_BUFFER (hsize_t, maxdims, rank); |
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379 |
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380 H5Sget_simple_extent_dims (space_hid, hdims, maxdims); |
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381 |
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4973
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382 ifargs.resize (hdims[1]); |
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4972
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383 |
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384 OCTAVE_LOCAL_BUFFER (char, s1, hdims[0] * hdims[1]); |
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385 |
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4973
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386 if (H5Dread (data_hid, H5T_NATIVE_UCHAR, H5S_ALL, H5S_ALL, |
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4972
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387 H5P_DEFAULT, s1) < 0) |
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4973
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388 { |
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4972
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389 H5Dclose (data_hid); |
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390 H5Sclose (space_hid); |
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391 H5Gclose (group_hid); |
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392 return false; |
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393 } |
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394 |
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395 H5Dclose (data_hid); |
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396 H5Sclose (space_hid); |
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397 |
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398 for (size_t i = 0; i < hdims[1]; i++) |
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399 ifargs(i) = std::string (s1 + i*hdims[0]); |
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400 |
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401 data_hid = H5Dopen (group_hid, "nm"); |
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402 |
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403 if (data_hid < 0) |
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404 { |
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405 H5Gclose (group_hid); |
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406 return false; |
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407 } |
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408 |
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409 type_hid = H5Dget_type (data_hid); |
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410 type_class_hid = H5Tget_class (type_hid); |
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411 |
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412 if (type_class_hid != H5T_STRING) |
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413 { |
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414 H5Tclose (type_hid); |
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415 H5Dclose (data_hid); |
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416 H5Gclose (group_hid); |
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417 return false; |
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418 } |
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4973
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419 |
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4972
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420 space_hid = H5Dget_space (data_hid); |
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|
421 rank = H5Sget_simple_extent_ndims (space_hid); |
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422 |
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423 if (rank != 0) |
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424 { |
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425 H5Sclose (space_hid); |
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|
426 H5Tclose (type_hid); |
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427 H5Dclose (data_hid); |
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428 H5Gclose (group_hid); |
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429 return false; |
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430 } |
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431 |
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432 slen = H5Tget_size (type_hid); |
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433 if (slen < 0) |
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434 { |
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435 H5Sclose (space_hid); |
|
|
436 H5Tclose (type_hid); |
|
|
437 H5Dclose (data_hid); |
|
|
438 H5Gclose (group_hid); |
|
|
439 return false; |
|
|
440 } |
|
|
441 |
|
|
442 OCTAVE_LOCAL_BUFFER (char, nm_tmp, slen); |
|
|
443 |
|
|
444 // create datatype for (null-terminated) string to read into: |
|
|
445 st_id = H5Tcopy (H5T_C_S1); |
|
|
446 H5Tset_size (st_id, slen); |
|
|
447 |
|
5760
|
448 if (H5Dread (data_hid, st_id, H5S_ALL, H5S_ALL, H5P_DEFAULT, nm_tmp) < 0) |
|
4972
|
449 { |
|
|
450 H5Sclose (space_hid); |
|
|
451 H5Tclose (type_hid); |
|
|
452 H5Gclose (group_hid); |
|
|
453 return false; |
|
|
454 } |
|
|
455 H5Tclose (st_id); |
|
|
456 H5Dclose (data_hid); |
|
|
457 nm = nm_tmp; |
|
|
458 |
|
|
459 data_hid = H5Dopen (group_hid, "iftext"); |
|
|
460 |
|
|
461 if (data_hid < 0) |
|
|
462 { |
|
|
463 H5Gclose (group_hid); |
|
|
464 return false; |
|
|
465 } |
|
|
466 |
|
|
467 type_hid = H5Dget_type (data_hid); |
|
|
468 type_class_hid = H5Tget_class (type_hid); |
|
|
469 |
|
|
470 if (type_class_hid != H5T_STRING) |
|
|
471 { |
|
|
472 H5Tclose (type_hid); |
|
|
473 H5Dclose (data_hid); |
|
|
474 H5Gclose (group_hid); |
|
|
475 return false; |
|
|
476 } |
|
4973
|
477 |
|
4972
|
478 space_hid = H5Dget_space (data_hid); |
|
|
479 rank = H5Sget_simple_extent_ndims (space_hid); |
|
|
480 |
|
|
481 if (rank != 0) |
|
|
482 { |
|
|
483 H5Sclose (space_hid); |
|
|
484 H5Tclose (type_hid); |
|
|
485 H5Dclose (data_hid); |
|
|
486 H5Gclose (group_hid); |
|
|
487 return false; |
|
|
488 } |
|
|
489 |
|
|
490 slen = H5Tget_size (type_hid); |
|
|
491 if (slen < 0) |
|
|
492 { |
|
|
493 H5Sclose (space_hid); |
|
|
494 H5Tclose (type_hid); |
|
|
495 H5Dclose (data_hid); |
|
|
496 H5Gclose (group_hid); |
|
|
497 return false; |
|
|
498 } |
|
|
499 |
|
|
500 OCTAVE_LOCAL_BUFFER (char, iftext_tmp, slen); |
|
|
501 |
|
|
502 // create datatype for (null-terminated) string to read into: |
|
|
503 st_id = H5Tcopy (H5T_C_S1); |
|
|
504 H5Tset_size (st_id, slen); |
|
|
505 |
|
5760
|
506 if (H5Dread (data_hid, st_id, H5S_ALL, H5S_ALL, H5P_DEFAULT, iftext_tmp) < 0) |
|
4972
|
507 { |
|
|
508 H5Sclose (space_hid); |
|
|
509 H5Tclose (type_hid); |
|
|
510 H5Gclose (group_hid); |
|
|
511 return false; |
|
|
512 } |
|
|
513 H5Tclose (st_id); |
|
|
514 H5Dclose (data_hid); |
|
|
515 iftext = iftext_tmp; |
|
|
516 |
|
|
517 octave_fcn_inline ftmp (iftext, ifargs, nm); |
|
|
518 fcn = ftmp.fcn; |
|
|
519 |
|
|
520 return true; |
|
|
521 } |
|
|
522 #endif |
|
|
523 |
|
4933
|
524 void |
|
|
525 octave_fcn_inline::print (std::ostream& os, bool pr_as_read_syntax) const |
|
|
526 { |
|
|
527 print_raw (os, pr_as_read_syntax); |
|
|
528 newline (os); |
|
|
529 } |
|
|
530 |
|
|
531 void |
|
|
532 octave_fcn_inline::print_raw (std::ostream& os, bool pr_as_read_syntax) const |
|
|
533 { |
|
5765
|
534 std::ostringstream buf; |
|
4933
|
535 |
|
|
536 if (nm.empty ()) |
|
|
537 buf << "f("; |
|
|
538 else |
|
|
539 buf << nm << "("; |
|
|
540 |
|
|
541 for (int i = 0; i < ifargs.length (); i++) |
|
|
542 { |
|
|
543 if (i) |
|
|
544 buf << ", "; |
|
|
545 |
|
|
546 buf << ifargs(i); |
|
|
547 } |
|
|
548 |
|
5765
|
549 buf << ") = " << iftext; |
|
4933
|
550 |
|
5765
|
551 octave_print_internal (os, buf.str (), pr_as_read_syntax, |
|
4933
|
552 current_print_indent_level ()); |
|
|
553 } |
|
|
554 |
|
|
555 octave_value |
|
5279
|
556 octave_fcn_inline::convert_to_str_internal (bool, bool, char type) const |
|
4933
|
557 { |
|
5279
|
558 return octave_value (fcn_text (), type); |
|
4933
|
559 } |
|
|
560 |
|
|
561 DEFUN (inline, args, , |
|
|
562 "-*- texinfo -*-\n\ |
|
|
563 @deftypefn {Built-in Function} {} inline (@var{str})\n\ |
|
6547
|
564 @deftypefnx {Built-in Function} {} inline (@var{str}, @var{arg1}, @dots{})\n\ |
|
4933
|
565 @deftypefnx {Built-in Function} {} inline (@var{str}, @var{n})\n\ |
|
|
566 Create an inline function from the character string @var{str}.\n\ |
|
5034
|
567 If called with a single argument, the arguments of the generated\n\ |
|
|
568 function are extracted from the function itself. The generated\n\ |
|
|
569 function arguments will then be in alphabetical order. It should\n\ |
|
|
570 be noted that i, and j are ignored as arguments due to the\n\ |
|
|
571 ambiguity between their use as a variable or their use as an inbuilt\n\ |
|
|
572 constant. All arguments followed by a parentheses are considered\n\ |
|
|
573 to be functions.\n\ |
|
4933
|
574 \n\ |
|
|
575 If the second and subsequent arguments are character strings,\n\ |
|
|
576 they are the names of the arguments of the function.\n\ |
|
|
577 \n\ |
|
|
578 If the second argument is an integer @var{n}, the arguments are\n\ |
|
|
579 @code{\"x\"}, @code{\"P1\"}, @dots{}, @code{\"P@var{N}\"}.\n\ |
|
5642
|
580 @seealso{argnames, formula, vectorize}\n\ |
|
|
581 @end deftypefn") |
|
4933
|
582 { |
|
|
583 octave_value retval; |
|
|
584 |
|
|
585 int nargin = args.length (); |
|
|
586 |
|
|
587 if (nargin > 0) |
|
|
588 { |
|
|
589 std::string fun = args(0).string_value (); |
|
|
590 |
|
|
591 if (! error_state) |
|
|
592 { |
|
|
593 string_vector fargs; |
|
|
594 |
|
|
595 if (nargin == 1) |
|
|
596 { |
|
5034
|
597 bool is_arg = false; |
|
5037
|
598 bool in_string = false; |
|
5034
|
599 std::string tmp_arg; |
|
|
600 size_t i = 0; |
|
|
601 |
|
|
602 while (i < fun.length ()) |
|
|
603 { |
|
5037
|
604 bool terminate_arg = false; |
|
5034
|
605 char c = fun[i++]; |
|
4933
|
606 |
|
5037
|
607 if (in_string) |
|
|
608 { |
|
|
609 if (c == '\'' || c == '\"') |
|
|
610 in_string = false; |
|
|
611 } |
|
|
612 else if (c == '\'' || c == '\"') |
|
|
613 { |
|
|
614 in_string = true; |
|
|
615 if (is_arg) |
|
|
616 terminate_arg = true; |
|
|
617 } |
|
|
618 else if (! isalpha (c) && c != '_') |
|
5034
|
619 if (! is_arg) |
|
|
620 continue; |
|
|
621 else if (isdigit (c)) |
|
5037
|
622 tmp_arg.append (1, c); |
|
5034
|
623 else |
|
|
624 { |
|
5037
|
625 // Before we do anything remove trailing whitespaces. |
|
5034
|
626 while (i < fun.length () && isspace (c)) |
|
|
627 c = fun[i++]; |
|
5037
|
628 |
|
5034
|
629 // Do we have a variable or a function? |
|
|
630 if (c != '(') |
|
5037
|
631 terminate_arg = true; |
|
|
632 else |
|
5034
|
633 { |
|
5037
|
634 tmp_arg = std::string (); |
|
|
635 is_arg = false; |
|
5034
|
636 } |
|
|
637 } |
|
|
638 else |
|
|
639 { |
|
|
640 tmp_arg.append (1, c); |
|
|
641 is_arg = true; |
|
5037
|
642 } |
|
5034
|
643 |
|
5037
|
644 if (terminate_arg || (i == fun.length () && is_arg)) |
|
|
645 { |
|
|
646 bool have_arg = false; |
|
|
647 |
|
|
648 for (int j = 0; j < fargs.length (); j++) |
|
|
649 if (tmp_arg == fargs (j)) |
|
|
650 { |
|
|
651 have_arg = true; |
|
|
652 break; |
|
|
653 } |
|
5034
|
654 |
|
5037
|
655 if (! have_arg && tmp_arg != "i" && tmp_arg != "j") |
|
|
656 fargs.append (tmp_arg); |
|
|
657 |
|
|
658 tmp_arg = std::string (); |
|
|
659 is_arg = false; |
|
5022
|
660 } |
|
|
661 } |
|
5034
|
662 |
|
5037
|
663 // Sort the arguments into ascii order. |
|
5034
|
664 fargs.qsort (); |
|
4933
|
665 } |
|
|
666 else if (nargin == 2 && args(1).is_numeric_type ()) |
|
|
667 { |
|
|
668 int n = args(1).int_value (); |
|
|
669 |
|
|
670 if (! error_state) |
|
|
671 { |
|
|
672 if (n >= 0) |
|
|
673 { |
|
|
674 fargs.resize (n+1); |
|
|
675 |
|
|
676 fargs(0) = "x"; |
|
|
677 |
|
|
678 for (int i = 1; i < n+1; i++) |
|
|
679 { |
|
5765
|
680 std::ostringstream buf; |
|
|
681 buf << "P" << i; |
|
|
682 fargs(i) = buf.str (); |
|
4933
|
683 } |
|
|
684 } |
|
|
685 else |
|
|
686 { |
|
|
687 error ("inline: numeric argument must be nonnegative"); |
|
|
688 return retval; |
|
|
689 } |
|
|
690 } |
|
|
691 else |
|
|
692 { |
|
|
693 error ("inline: expecting second argument to be an integer"); |
|
|
694 return retval; |
|
|
695 } |
|
|
696 } |
|
|
697 else |
|
|
698 { |
|
|
699 fargs.resize (nargin - 1); |
|
|
700 |
|
|
701 for (int i = 1; i < nargin; i++) |
|
|
702 { |
|
|
703 std::string s = args(i).string_value (); |
|
|
704 |
|
|
705 if (! error_state) |
|
|
706 fargs(i-1) = s; |
|
|
707 else |
|
|
708 { |
|
|
709 error ("inline: expecting string arguments"); |
|
|
710 return retval; |
|
|
711 } |
|
|
712 } |
|
|
713 } |
|
|
714 |
|
|
715 retval = octave_value (new octave_fcn_inline (fun, fargs)); |
|
|
716 } |
|
|
717 else |
|
|
718 error ("inline: first argument must be a string"); |
|
|
719 } |
|
|
720 else |
|
5823
|
721 print_usage (); |
|
4933
|
722 |
|
|
723 return retval; |
|
|
724 } |
|
|
725 |
|
|
726 DEFUN (formula, args, , |
|
|
727 "-*- texinfo -*-\n\ |
|
|
728 @deftypefn {Built-in Function} {} formula (@var{fun})\n\ |
|
|
729 Return a character string representing the inline function @var{fun}.\n\ |
|
|
730 Note that @code{char (@var{fun})} is equivalent to\n\ |
|
|
731 @code{formula (@var{fun})}.\n\ |
|
5642
|
732 @seealso{argnames, inline, vectorize}\n\ |
|
|
733 @end deftypefn") |
|
4933
|
734 { |
|
|
735 octave_value retval; |
|
|
736 |
|
|
737 int nargin = args.length (); |
|
|
738 |
|
|
739 if (nargin == 1) |
|
|
740 { |
|
|
741 octave_fcn_inline* fn = args(0).fcn_inline_value (true); |
|
|
742 |
|
|
743 if (fn) |
|
|
744 retval = octave_value (fn->fcn_text ()); |
|
|
745 else |
|
|
746 error ("formula: must be an inline function"); |
|
|
747 } |
|
|
748 else |
|
5823
|
749 print_usage (); |
|
4933
|
750 |
|
|
751 return retval; |
|
|
752 } |
|
|
753 |
|
|
754 DEFUN (argnames, args, , |
|
|
755 "-*- texinfo -*-\n\ |
|
|
756 @deftypefn {Built-in Function} {} argnames (@var{fun})\n\ |
|
|
757 Return a cell array of character strings containing the names of\n\ |
|
|
758 the arguments of the inline function @var{fun}.\n\ |
|
6529
|
759 @seealso{inline, formula, vectorize}\n\ |
|
5642
|
760 @end deftypefn") |
|
4933
|
761 { |
|
|
762 octave_value retval; |
|
|
763 |
|
|
764 int nargin = args.length (); |
|
|
765 |
|
|
766 if (nargin == 1) |
|
|
767 { |
|
|
768 octave_fcn_inline *fn = args(0).fcn_inline_value (true); |
|
|
769 |
|
|
770 if (fn) |
|
|
771 { |
|
|
772 string_vector t1 = fn->fcn_arg_names (); |
|
|
773 |
|
|
774 Cell t2 (dim_vector (t1.length (), 1)); |
|
|
775 |
|
|
776 for (int i = 0; i < t1.length (); i++) |
|
|
777 t2(i) = t1(i); |
|
|
778 |
|
|
779 retval = t2; |
|
|
780 } |
|
|
781 else |
|
|
782 error ("argnames: argument must be an inline function"); |
|
|
783 } |
|
|
784 else |
|
5823
|
785 print_usage (); |
|
4933
|
786 |
|
|
787 return retval; |
|
|
788 } |
|
|
789 |
|
|
790 DEFUN (vectorize, args, , |
|
|
791 "-*- texinfo -*-\n\ |
|
|
792 @deftypefn {Built-in Function} {} argnames (@var{fun})\n\ |
|
|
793 Create a vectorized version of the inline function @var{fun}\n\ |
|
|
794 by replacing all occurrences of @code{*}, @code{/}, etc., with\n\ |
|
|
795 @code{.*}, @code{./}, etc.\n\ |
|
5642
|
796 @end deftypefn") |
|
4933
|
797 { |
|
|
798 octave_value retval; |
|
|
799 |
|
|
800 int nargin = args.length (); |
|
|
801 |
|
|
802 if (nargin == 1) |
|
|
803 { |
|
5409
|
804 std::string old_func; |
|
|
805 octave_fcn_inline* old = 0; |
|
|
806 bool func_is_string = true; |
|
4933
|
807 |
|
5409
|
808 if (args(0).is_string ()) |
|
|
809 old_func = args(0).string_value (); |
|
|
810 else |
|
4933
|
811 { |
|
5409
|
812 old = args(0).fcn_inline_value (true); |
|
|
813 func_is_string = false; |
|
|
814 |
|
|
815 if (old) |
|
|
816 old_func = old->fcn_text (); |
|
|
817 else |
|
|
818 error ("vectorize: must be a string or inline function"); |
|
|
819 } |
|
|
820 |
|
|
821 if (! error_state) |
|
|
822 { |
|
4933
|
823 std::string new_func; |
|
|
824 size_t i = 0; |
|
|
825 |
|
|
826 while (i < old_func.length ()) |
|
|
827 { |
|
|
828 std::string t1 = old_func.substr (i, 1); |
|
|
829 |
|
|
830 if (t1 == "*" || t1 == "/" || t1 == "\\" || t1 == "^") |
|
|
831 { |
|
|
832 if (i && old_func.substr (i-1, 1) != ".") |
|
|
833 new_func.append ("."); |
|
|
834 |
|
|
835 // Special case for ** operator. |
|
4973
|
836 if (t1 == "*" && i < (old_func.length () - 1) |
|
4933
|
837 && old_func.substr (i+1, 1) == "*") |
|
|
838 { |
|
|
839 new_func.append ("*"); |
|
|
840 i++; |
|
|
841 } |
|
|
842 } |
|
|
843 new_func.append (t1); |
|
|
844 i++; |
|
|
845 } |
|
|
846 |
|
5409
|
847 if (func_is_string) |
|
|
848 retval = octave_value (new_func); |
|
|
849 else |
|
|
850 retval = octave_value (new octave_fcn_inline |
|
|
851 (new_func, old->fcn_arg_names ())); |
|
4933
|
852 } |
|
|
853 } |
|
|
854 else |
|
5823
|
855 print_usage (); |
|
4933
|
856 |
|
|
857 return retval; |
|
|
858 } |
|
|
859 |
|
|
860 /* |
|
|
861 ;;; Local Variables: *** |
|
|
862 ;;; mode: C++ *** |
|
|
863 ;;; End: *** |
|
|
864 */ |
