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2117
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1 /* |
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2 |
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3 Copyright (C) 1996 John W. Eaton |
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4 |
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5 This file is part of Octave. |
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6 |
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7 Octave is free software; you can redistribute it and/or modify it |
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8 under the terms of the GNU General Public License as published by the |
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9 Free Software Foundation; either version 2, or (at your option) any |
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10 later version. |
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11 |
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12 Octave is distributed in the hope that it will be useful, but WITHOUT |
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13 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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15 for more details. |
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16 |
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17 You should have received a copy of the GNU General Public License |
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18 along with Octave; see the file COPYING. If not, write to the Free |
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19 Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
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20 |
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21 */ |
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22 |
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23 #ifdef HAVE_CONFIG_H |
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24 #include <config.h> |
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25 #endif |
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26 |
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27 #include <iomanip.h> |
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28 #include <strstream.h> |
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29 |
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30 #include "lo-ieee.h" |
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31 #include "lo-mappers.h" |
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32 #include "lo-utils.h" |
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33 #include "str-vec.h" |
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34 |
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35 #include "error.h" |
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36 #include "oct-stream.h" |
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37 #include "utils.h" |
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38 |
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39 // Possible values for conv_err: |
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40 // |
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41 // 1 : not a real scalar |
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42 // 2 : error extracting scalar value (should not happen) |
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43 // 3 : value is NaN |
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44 // 4 : value is not an integer |
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45 |
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46 static int |
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47 convert_to_valid_int (const octave_value& tc, int& conv_err) |
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48 { |
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49 int retval = 0; |
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50 |
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51 conv_err = 0; |
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52 |
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53 if (tc.is_real_scalar ()) |
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54 { |
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55 double dval = tc.double_value (); |
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56 |
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57 if (! error_state) |
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58 { |
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59 if (! xisnan (dval)) |
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60 { |
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61 int ival = NINT (dval); |
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62 |
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63 if ((double) ival == dval) |
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64 retval = ival; |
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65 else |
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66 conv_err = 4; |
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67 } |
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68 else |
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69 conv_err = 3; |
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70 } |
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71 else |
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72 conv_err = 2; |
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73 } |
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74 else |
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75 conv_err = 1; |
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76 |
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77 return retval; |
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78 } |
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79 |
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80 static int |
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81 get_size (double d, const char *warn_for) |
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82 { |
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83 int retval = -1; |
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84 |
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85 if (! xisnan (d)) |
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86 { |
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87 if (! xisinf (d)) |
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88 { |
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89 if (d > 0.0) |
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90 retval = NINT (d); |
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91 else |
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92 ::error ("%s: negative value invalid as size specification", |
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93 warn_for); |
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94 } |
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95 else |
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96 retval = -1; |
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97 } |
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98 else |
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99 ::error ("%s: NaN is invalid as size specification", warn_for); |
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100 |
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101 return retval; |
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102 } |
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103 |
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104 static void |
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105 get_size (const Matrix& size, int& nr, int& nc, const char *warn_for) |
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106 { |
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107 nr = -1; |
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108 nc = -1; |
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109 |
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110 double dnr = -1.0; |
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111 double dnc = -1.0; |
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112 |
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113 if (size.rows () == 1 && size.cols () > 0) |
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114 { |
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115 dnr = size.elem (0, 0); |
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116 |
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117 if (size.cols () == 2) |
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118 dnc = size.elem (0, 1); |
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119 else if (size.cols () > 2) |
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120 ::error ("%s: invalid size specification", warn_for); |
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121 } |
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122 else if (size.cols () == 1 && size.rows () > 0) |
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123 { |
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124 dnr = size.elem (0, 0); |
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125 |
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126 if (size.rows () == 2) |
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127 dnc = size.elem (1, 0); |
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128 else if (size.rows () > 2) |
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129 ::error ("%s: invalid size specification", warn_for); |
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130 } |
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131 else |
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132 ::error ("%s: invalid size specification", warn_for); |
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133 |
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134 if (! error_state) |
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135 { |
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136 nr = get_size (dnr, warn_for); |
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137 |
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138 if (! error_state && dnc > 0.0) |
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139 nc = get_size (dnc, warn_for); |
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140 } |
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141 } |
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142 |
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143 scanf_format_list::scanf_format_list (const string& s) |
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144 : nconv (0), curr_idx (0), list (16), buf (0) |
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145 { |
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146 int num_elts = 0; |
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147 |
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148 int n = s.length (); |
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149 |
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150 int i = 0; |
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151 |
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152 bool discard = false; |
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153 char modifier = '\0'; |
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154 char type = '\0'; |
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155 |
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156 bool have_more = true; |
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157 |
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158 while (i < n) |
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159 { |
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160 have_more = true; |
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161 |
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162 if (! buf) |
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163 buf = new ostrstream (); |
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164 |
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165 if (s[i] == '%') |
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166 { |
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167 process_conversion (s, i, n, discard, type, modifier, num_elts); |
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168 have_more = (buf != 0); |
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169 } |
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170 else |
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171 { |
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172 discard = false; |
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173 modifier = '\0'; |
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174 type = '\0'; |
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175 *buf << s[i++]; |
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176 } |
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177 |
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178 if (nconv < 0) |
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179 { |
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180 have_more = false; |
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181 break; |
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182 } |
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183 } |
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184 |
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185 if (have_more) |
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186 add_elt_to_list (discard, type, modifier, num_elts); |
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187 |
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188 list.resize (num_elts); |
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189 |
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190 delete buf; |
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191 } |
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192 |
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193 scanf_format_list::~scanf_format_list (void) |
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194 { |
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195 int n = list.length (); |
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196 |
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197 for (int i = 0; i < n; i++) |
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198 { |
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199 scanf_format_elt *elt = list.elem (i); |
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200 delete elt; |
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201 } |
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202 } |
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203 |
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204 void |
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205 scanf_format_list::add_elt_to_list (bool discard, char type, |
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206 char modifier, int& num_elts) |
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207 { |
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208 if (buf) |
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209 { |
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210 *buf << ends; |
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211 |
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212 char *text = buf->str (); |
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213 |
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214 if (text) |
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215 { |
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216 if (*text) |
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217 { |
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218 scanf_format_elt *elt |
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219 = new scanf_format_elt (text, discard, type, modifier); |
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220 |
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221 if (num_elts == list.length ()) |
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222 list.resize (2 * num_elts); |
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223 |
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224 list.elem (num_elts++) = elt; |
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225 } |
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226 else |
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227 delete [] text; |
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228 } |
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229 |
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230 delete buf; |
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231 buf = 0; |
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232 } |
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233 } |
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234 |
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235 void |
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236 scanf_format_list::process_conversion (const string& s, int& i, int n, |
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237 bool& discard, char& type, |
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238 char& modifier, int& num_elts) |
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239 |
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240 { |
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241 discard = false; |
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242 modifier = '\0'; |
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243 type = '\0'; |
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244 |
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245 *buf << s[i++]; |
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246 |
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247 bool have_width = false; |
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248 |
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249 while (i < n) |
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250 { |
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251 switch (s[i]) |
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252 { |
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253 case '*': |
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254 if (discard) |
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255 nconv = -1; |
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256 else |
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257 { |
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258 discard = true; |
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259 *buf << s[i++]; |
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260 } |
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261 break; |
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262 |
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263 case '0': case '1': case '2': case '3': case '4': |
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264 case '5': case '6': case '7': case '8': case '9': |
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265 if (have_width) |
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266 nconv = -1; |
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267 else |
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268 { |
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269 have_width = true; |
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270 *buf << s[i++]; |
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271 while (i < n && isdigit (s[i])) |
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272 *buf << s[i++]; |
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273 } |
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274 break; |
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275 |
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276 case 'h': case 'l': case 'L': |
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277 if (modifier != '\0') |
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278 nconv = -1; |
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279 else |
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280 { |
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281 modifier = s[i]; |
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282 *buf << s[i++]; |
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283 } |
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284 break; |
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285 |
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286 case 'd': case 'i': case 'o': case 'u': case 'x': |
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287 if (modifier == 'L') |
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288 { |
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289 nconv = -1; |
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290 break; |
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291 } |
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292 goto fini; |
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293 |
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294 case 'e': case 'f': case 'g': |
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295 if (modifier == 'h') |
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296 { |
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297 nconv = -1; |
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298 break; |
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299 } |
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300 goto fini; |
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301 |
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302 case 'c': case 's': case 'p': case '%': case '[': |
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303 if (modifier != '\0') |
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304 { |
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305 nconv = -1; |
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306 break; |
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307 } |
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308 goto fini; |
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309 |
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310 fini: |
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311 { |
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312 if (finish_conversion (s, i, n, discard, type, |
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313 modifier, num_elts) == 0) |
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314 return; |
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315 } |
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316 break; |
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317 |
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318 default: |
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319 nconv = -1; |
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320 break; |
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321 } |
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322 |
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323 if (nconv < 0) |
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324 break; |
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325 } |
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326 |
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327 nconv = -1; |
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328 } |
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329 |
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330 int |
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331 scanf_format_list::finish_conversion (const string& s, int& i, int n, |
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332 bool discard, char& type, |
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333 char modifier, int& num_elts) |
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334 { |
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335 int retval = 0; |
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336 |
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337 if (s[i] == '%') |
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338 *buf << s[i++]; |
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339 else |
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340 { |
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341 type = s[i]; |
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342 |
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343 if (s[i] == '[') |
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344 { |
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345 *buf << s[i++]; |
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346 |
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347 if (i < n) |
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348 { |
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349 if (s[i] == '^') |
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350 { |
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351 type = '^'; |
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352 *buf << s[i++]; |
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353 } |
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354 else if (s[i] == ']') |
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355 *buf << s[i++]; |
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356 } |
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357 |
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358 while (i < n && s[i] != ']') |
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359 *buf << s[i++]; |
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360 |
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361 if (i < n && s[i] == ']') |
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362 *buf << s[i++]; |
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363 |
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364 if (s[i-1] != ']') |
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365 retval = nconv = -1; |
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366 } |
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367 else |
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368 { |
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369 // XXX FIXME XXX -- this is a kludge, and probably not the |
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370 // right thing to do here. |
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371 |
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372 if (type == 's') |
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373 { |
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374 *buf << 'c'; |
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375 i++; |
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376 } |
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377 else |
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378 *buf << s[i++]; |
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379 } |
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380 |
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381 nconv++; |
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382 |
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383 if (nconv > 0) |
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384 add_elt_to_list (discard, type, modifier, num_elts); |
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385 } |
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386 |
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387 return retval; |
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388 } |
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389 |
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390 void |
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391 scanf_format_list::printme (void) const |
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392 { |
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393 int n = list.length (); |
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394 |
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395 for (int i = 0; i < n; i++) |
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396 { |
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397 scanf_format_elt *elt = list.elem (i); |
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398 |
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399 cerr << elt->discard << "\t" |
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400 << elt->type << "\t" |
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401 << elt->modifier << "\t" |
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402 << undo_string_escapes (elt->text) << "\n"; |
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403 } |
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404 } |
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405 |
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406 bool |
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407 scanf_format_list::all_character_conversions (void) |
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408 { |
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409 int n = list.length (); |
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410 |
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411 if (n > 0) |
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412 { |
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413 for (int i = 0; i < n; i++) |
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414 { |
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415 scanf_format_elt *elt = list.elem (i); |
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416 |
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417 switch (elt->type) |
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418 { |
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419 case 'c': case 's': case 'p': case '%': case '[': |
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420 break; |
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421 |
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422 default: |
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423 return false; |
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424 break; |
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425 } |
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426 } |
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427 |
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428 return true; |
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429 } |
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430 else |
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431 return false; |
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432 } |
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433 |
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434 bool |
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435 scanf_format_list::all_numeric_conversions (void) |
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436 { |
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437 int n = list.length (); |
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438 |
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439 if (n > 0) |
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440 { |
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441 for (int i = 0; i < n; i++) |
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442 { |
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443 scanf_format_elt *elt = list.elem (i); |
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444 |
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445 switch (elt->type) |
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446 { |
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447 case 'd': case 'i': case 'o': case 'u': case 'x': |
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448 case 'e': case 'f': case 'g': |
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449 break; |
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450 |
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451 default: |
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452 return false; |
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453 break; |
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454 } |
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455 } |
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456 |
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457 return true; |
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458 } |
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459 else |
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460 return false; |
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461 } |
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462 |
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463 // Ugh again. |
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464 |
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465 printf_format_list::printf_format_list (const string& s) |
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466 : nconv (0), curr_idx (0), list (16), buf (0) |
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467 { |
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468 int num_elts = 0; |
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469 |
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470 int n = s.length (); |
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471 |
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472 int i = 0; |
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473 |
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474 int args = 0; |
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475 char modifier = '\0'; |
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476 char type = '\0'; |
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477 |
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478 bool have_more = true; |
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479 |
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480 while (i < n) |
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481 { |
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482 have_more = true; |
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483 |
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484 if (! buf) |
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485 buf = new ostrstream (); |
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486 |
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487 switch (s[i]) |
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488 { |
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489 case '%': |
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490 process_conversion (s, i, n, args, type, modifier, num_elts); |
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491 have_more = (buf != 0); |
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492 break; |
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493 |
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494 default: |
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495 args = 0; |
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496 modifier = '\0'; |
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497 type = '\0'; |
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498 *buf << s[i++]; |
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499 break; |
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500 } |
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501 |
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502 if (nconv < 0) |
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503 { |
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504 have_more = false; |
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505 break; |
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506 } |
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507 } |
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508 |
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509 if (have_more) |
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510 add_elt_to_list (args, type, modifier, num_elts); |
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511 |
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512 list.resize (num_elts); |
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513 |
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514 delete buf; |
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515 } |
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516 |
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517 printf_format_list::~printf_format_list (void) |
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518 { |
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519 int n = list.length (); |
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520 |
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521 for (int i = 0; i < n; i++) |
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522 { |
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523 printf_format_elt *elt = list.elem (i); |
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524 delete elt; |
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525 } |
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526 } |
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527 |
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528 void |
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529 printf_format_list::add_elt_to_list (int args, char type, char modifier, |
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530 int& num_elts) |
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531 { |
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532 if (buf) |
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533 { |
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534 *buf << ends; |
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535 |
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536 char *text = buf->str (); |
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537 |
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538 if (text) |
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539 { |
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540 if (*text) |
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541 { |
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542 printf_format_elt *elt |
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543 = new printf_format_elt (text, args, type, modifier); |
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544 |
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545 if (num_elts == list.length ()) |
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546 list.resize (2 * num_elts); |
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547 |
|
|
548 list.elem (num_elts++) = elt; |
|
|
549 } |
|
|
550 else |
|
|
551 delete [] text; |
|
|
552 } |
|
|
553 |
|
|
554 delete buf; |
|
|
555 buf = 0; |
|
|
556 } |
|
|
557 } |
|
|
558 |
|
|
559 void |
|
|
560 printf_format_list::process_conversion (const string& s, int& i, int n, |
|
|
561 int& args, char& modifier, |
|
|
562 char& type, int& num_elts) |
|
|
563 { |
|
|
564 args = 0; |
|
|
565 modifier = '\0'; |
|
|
566 type = '\0'; |
|
|
567 |
|
|
568 *buf << s[i++]; |
|
|
569 |
|
|
570 bool next = false; |
|
|
571 |
|
|
572 while (i < n) |
|
|
573 { |
|
|
574 switch (s[i]) |
|
|
575 { |
|
|
576 case '-': case '+': case ' ': case '0': case '#': |
|
|
577 *buf << s[i++]; |
|
|
578 break; |
|
|
579 |
|
|
580 default: |
|
|
581 next = true; |
|
|
582 break; |
|
|
583 } |
|
|
584 |
|
|
585 if (next) |
|
|
586 break; |
|
|
587 } |
|
|
588 |
|
|
589 if (i < n) |
|
|
590 { |
|
|
591 if (s[i] == '*') |
|
|
592 { |
|
|
593 args++; |
|
|
594 *buf << s[i++]; |
|
|
595 } |
|
|
596 else |
|
|
597 { |
|
|
598 while (i < n && isdigit (s[i])) |
|
|
599 *buf << s[i++]; |
|
|
600 } |
|
|
601 } |
|
|
602 |
|
|
603 if (i < n && s[i] == '.') |
|
|
604 { |
|
|
605 *buf << s[i++]; |
|
|
606 |
|
|
607 if (i < n) |
|
|
608 { |
|
|
609 if (s[i] == '*') |
|
|
610 { |
|
|
611 args++; |
|
|
612 *buf << s[i++]; |
|
|
613 } |
|
|
614 else |
|
|
615 { |
|
|
616 while (i < n && isdigit (s[i])) |
|
|
617 *buf << s[i++]; |
|
|
618 } |
|
|
619 } |
|
|
620 } |
|
|
621 |
|
|
622 if (i < n) |
|
|
623 { |
|
|
624 switch (s[i]) |
|
|
625 { |
|
|
626 case 'h': case 'l': case 'L': |
|
|
627 modifier = s[i]; |
|
|
628 *buf << s[i++]; |
|
|
629 break; |
|
|
630 |
|
|
631 default: |
|
|
632 break; |
|
|
633 } |
|
|
634 } |
|
|
635 |
|
|
636 if (i < n) |
|
|
637 finish_conversion (s, i, args, modifier, type, num_elts); |
|
|
638 else |
|
|
639 nconv = -1; |
|
|
640 } |
|
|
641 |
|
|
642 void |
|
|
643 printf_format_list::finish_conversion (const string& s, int& i, |
|
|
644 int args, char modifier, |
|
|
645 char& type, int& num_elts) |
|
|
646 |
|
|
647 { |
|
|
648 switch (s[i]) |
|
|
649 { |
|
|
650 case 'd': case 'i': case 'o': case 'x': case 'X': |
|
|
651 case 'u': case 'c': |
|
|
652 if (modifier == 'L') |
|
|
653 { |
|
|
654 nconv = -1; |
|
|
655 break; |
|
|
656 } |
|
|
657 goto fini; |
|
|
658 |
|
|
659 case 'f': case 'e': case 'E': case 'g': case 'G': |
|
|
660 if (modifier == 'h' || modifier == 'l') |
|
|
661 { |
|
|
662 nconv = -1; |
|
|
663 break; |
|
|
664 } |
|
|
665 goto fini; |
|
|
666 |
|
|
667 case 's': case 'p': case '%': |
|
|
668 if (modifier != '\0') |
|
|
669 { |
|
|
670 nconv = -1; |
|
|
671 break; |
|
|
672 } |
|
|
673 goto fini; |
|
|
674 |
|
|
675 fini: |
|
|
676 |
|
|
677 if (s[i] == '%' && args == 0) |
|
|
678 *buf << s[i++]; |
|
|
679 else |
|
|
680 { |
|
|
681 if (s[i] != '%') |
|
|
682 args++; |
|
|
683 |
|
|
684 type = s[i]; |
|
|
685 |
|
|
686 *buf << s[i++]; |
|
|
687 |
|
|
688 add_elt_to_list (args, type, modifier, num_elts); |
|
|
689 |
|
|
690 nconv++; |
|
|
691 } |
|
|
692 break; |
|
|
693 |
|
|
694 default: |
|
|
695 nconv = -1; |
|
|
696 break; |
|
|
697 } |
|
|
698 } |
|
|
699 |
|
|
700 void |
|
|
701 printf_format_list::printme (void) const |
|
|
702 { |
|
|
703 int n = list.length (); |
|
|
704 |
|
|
705 for (int i = 0; i < n; i++) |
|
|
706 { |
|
|
707 printf_format_elt *elt = list.elem (i); |
|
|
708 |
|
|
709 cerr << elt->args<< "\t" |
|
|
710 << elt->type << "\t" |
|
|
711 << elt->modifier << "\t" |
|
|
712 << undo_string_escapes (elt->text) << "\n"; |
|
|
713 } |
|
|
714 } |
|
|
715 |
|
|
716 void |
|
|
717 octave_base_stream::error (const string& msg) |
|
|
718 { |
|
|
719 fail = true; |
|
|
720 errmsg = msg; |
|
|
721 } |
|
|
722 |
|
|
723 void |
|
|
724 octave_base_stream::clear (void) |
|
|
725 { |
|
|
726 fail = false; |
|
|
727 errmsg = ""; |
|
|
728 } |
|
|
729 |
|
|
730 // Functions that are defined for all input streams (input streams |
|
|
731 // are those that define is). |
|
|
732 |
|
|
733 string |
|
|
734 octave_base_stream::do_gets (int max_len, bool& err, |
|
|
735 bool strip_newline, const char *fcn) |
|
|
736 { |
|
|
737 string retval; |
|
|
738 |
|
|
739 err = false; |
|
|
740 |
|
|
741 istream *isp = input_stream (); |
|
|
742 |
|
|
743 if (isp) |
|
|
744 { |
|
|
745 istream is = *isp; |
|
|
746 |
|
|
747 // XXX FIXME XXX -- this should probably be converted to use |
|
|
748 // sstream when that is available. |
|
|
749 ostrstream buf; |
|
|
750 |
|
|
751 int c = 0; |
|
|
752 int count = 0; |
|
|
753 int newline_stripped = 0; |
|
|
754 |
|
|
755 while (is && (c = is.get ()) != EOF) |
|
|
756 { |
|
|
757 count++; |
|
|
758 |
|
|
759 if (c == '\n') |
|
|
760 { |
|
|
761 if (! strip_newline) |
|
|
762 buf << (char) c; |
|
|
763 else |
|
|
764 newline_stripped = 1; |
|
|
765 |
|
|
766 break; |
|
|
767 } |
|
|
768 else |
|
|
769 buf << (char) c; |
|
|
770 |
|
|
771 if (max_len > 0 && count == max_len) |
|
|
772 break; |
|
|
773 } |
|
|
774 |
|
|
775 if (is.fail ()) |
|
|
776 { |
|
|
777 err = true; |
|
|
778 string msg = fcn; |
|
|
779 msg.append (": read error"); |
|
|
780 error (msg); |
|
|
781 } |
|
|
782 else if (is.eof ()) |
|
|
783 { |
|
|
784 err = true; |
|
|
785 string msg = fcn; |
|
|
786 msg.append (": at end of file"); |
|
|
787 error (msg); |
|
|
788 } |
|
|
789 else |
|
|
790 { |
|
|
791 buf << ends; |
|
|
792 char *tmp = buf.str (); |
|
|
793 retval = tmp; |
|
|
794 delete [] tmp; |
|
|
795 } |
|
|
796 } |
|
|
797 else |
|
|
798 { |
|
|
799 err = true; |
|
|
800 invalid_operation (fcn, "reading"); |
|
|
801 } |
|
|
802 |
|
|
803 return retval; |
|
|
804 } |
|
|
805 |
|
|
806 string |
|
|
807 octave_base_stream::getl (int max_len, bool& err) |
|
|
808 { |
|
|
809 return do_gets (max_len, err, true, "fgetl"); |
|
|
810 } |
|
|
811 |
|
|
812 string |
|
|
813 octave_base_stream::gets (int max_len, bool& err) |
|
|
814 { |
|
|
815 return do_gets (max_len, err, false, "fgets"); |
|
|
816 } |
|
|
817 |
|
|
818 // XXX FIXME XXX -- need to handle architecture type conversions. |
|
|
819 |
|
|
820 #define do_read_elem(is, type, val) \ |
|
|
821 do \ |
|
|
822 { \ |
|
|
823 type tmp_val; \ |
|
|
824 is.read ((char *) &tmp_val, sizeof (type)); \ |
|
|
825 val = tmp_val; \ |
|
|
826 } \ |
|
|
827 while (0) |
|
|
828 |
|
|
829 octave_value |
|
|
830 octave_base_stream::do_read (int nr, int nc, data_type dt, int skip, |
|
|
831 arch_type at, int& count) |
|
|
832 { |
|
|
833 count = 0; |
|
|
834 |
|
|
835 octave_value retval = Matrix (); |
|
|
836 |
|
|
837 istream *isp = input_stream (); |
|
|
838 |
|
|
839 Matrix mval; |
|
|
840 double *data = 0; |
|
|
841 int max_size = 0; |
|
|
842 |
|
|
843 int final_nr = 0; |
|
|
844 int final_nc = 0; |
|
|
845 |
|
|
846 if (nr > 0) |
|
|
847 { |
|
|
848 if (nc > 0) |
|
|
849 { |
|
|
850 mval.resize (nr, nc, 0.0); |
|
|
851 data = mval.fortran_vec (); |
|
|
852 max_size = nr * nc; |
|
|
853 } |
|
|
854 else |
|
|
855 { |
|
|
856 mval.resize (nr, 32, 0.0); |
|
|
857 data = mval.fortran_vec (); |
|
|
858 max_size = nr * nc; |
|
|
859 } |
|
|
860 } |
|
|
861 else |
|
|
862 { |
|
|
863 mval.resize (32, 1, 0.0); |
|
|
864 data = mval.fortran_vec (); |
|
|
865 max_size = 32; |
|
|
866 } |
|
|
867 |
|
|
868 if (isp) |
|
|
869 { |
|
|
870 istream is = *isp; |
|
|
871 |
|
|
872 for (;;) |
|
|
873 { |
|
|
874 // XXX FIXME XXX -- maybe there should be a special case for |
|
|
875 // skip == 0. |
|
|
876 |
|
|
877 if (is) |
|
|
878 { |
|
|
879 if (nr > 0 && nc > 0 && count == max_size) |
|
|
880 { |
|
|
881 final_nr = nr; |
|
|
882 final_nc = nc; |
|
|
883 |
|
|
884 break; |
|
|
885 } |
|
|
886 |
|
|
887 if (skip != 0) |
|
|
888 seek (skip, ios::cur); |
|
|
889 |
|
|
890 if (is) |
|
|
891 { |
|
|
892 double tmp; |
|
|
893 |
|
|
894 switch (dt) |
|
|
895 { |
|
|
896 case dt_char: |
|
|
897 do_read_elem (is, char, tmp); |
|
|
898 break; |
|
|
899 |
|
|
900 case dt_schar: |
|
|
901 do_read_elem (is, signed char, tmp); |
|
|
902 break; |
|
|
903 |
|
|
904 case dt_uchar: |
|
|
905 do_read_elem (is, unsigned char, tmp); |
|
|
906 break; |
|
|
907 |
|
|
908 case dt_short: |
|
|
909 do_read_elem (is, short, tmp); |
|
|
910 break; |
|
|
911 |
|
|
912 case dt_ushort: |
|
|
913 do_read_elem (is, unsigned short, tmp); |
|
|
914 break; |
|
|
915 |
|
|
916 case dt_int: |
|
|
917 do_read_elem (is, int, tmp); |
|
|
918 break; |
|
|
919 |
|
|
920 case dt_uint: |
|
|
921 do_read_elem (is, unsigned int, tmp); |
|
|
922 break; |
|
|
923 |
|
|
924 case dt_long: |
|
|
925 do_read_elem (is, long, tmp); |
|
|
926 break; |
|
|
927 |
|
|
928 case dt_ulong: |
|
|
929 do_read_elem (is, unsigned long, tmp); |
|
|
930 break; |
|
|
931 |
|
|
932 case dt_float: |
|
|
933 do_read_elem (is, float, tmp); |
|
|
934 break; |
|
|
935 |
|
|
936 case dt_double: |
|
|
937 do_read_elem (is, double, tmp); |
|
|
938 break; |
|
|
939 |
|
|
940 default: |
|
|
941 error ("fread: invalid type specification"); |
|
|
942 } |
|
|
943 |
|
|
944 if (is && ok ()) |
|
|
945 { |
|
|
946 if (count == max_size) |
|
|
947 { |
|
|
948 max_size *= 2; |
|
|
949 |
|
|
950 if (nr > 0) |
|
|
951 mval.resize (nr, max_size / 2, 0.0); |
|
|
952 else |
|
|
953 mval.resize (max_size, 1, 0.0); |
|
|
954 |
|
|
955 data = mval.fortran_vec (); |
|
|
956 } |
|
|
957 |
|
|
958 data[count++] = tmp; |
|
|
959 } |
|
|
960 else |
|
|
961 { |
|
|
962 if (is.eof ()) |
|
|
963 { |
|
|
964 if (nr > 0) |
|
|
965 { |
|
|
966 if (count > nr) |
|
|
967 { |
|
|
968 final_nr = nr; |
|
|
969 final_nc = (count - 1) / nr + 1; |
|
|
970 } |
|
|
971 else |
|
|
972 { |
|
|
973 final_nr = count; |
|
|
974 final_nc = 1; |
|
|
975 } |
|
|
976 } |
|
|
977 else |
|
|
978 { |
|
|
979 final_nr = count; |
|
|
980 final_nc = 1; |
|
|
981 } |
|
|
982 } |
|
|
983 |
|
|
984 break; |
|
|
985 } |
|
|
986 } |
|
|
987 else |
|
|
988 { |
|
|
989 error ("fread: read error"); |
|
|
990 break; |
|
|
991 } |
|
|
992 } |
|
|
993 else |
|
|
994 { |
|
|
995 error ("fread: read error"); |
|
|
996 break; |
|
|
997 } |
|
|
998 } |
|
|
999 } |
|
|
1000 |
|
|
1001 if (ok ()) |
|
|
1002 { |
|
|
1003 mval.resize (final_nr, final_nc); |
|
|
1004 |
|
|
1005 retval = mval; |
|
|
1006 } |
|
|
1007 |
|
|
1008 return retval; |
|
|
1009 } |
|
|
1010 |
|
|
1011 octave_value |
|
|
1012 octave_base_stream::read (const Matrix& size, data_type dt, int skip, |
|
|
1013 arch_type at, int& count) |
|
|
1014 { |
|
|
1015 octave_value retval; |
|
|
1016 |
|
|
1017 count = 0; |
|
|
1018 |
|
|
1019 istream *is = input_stream (); |
|
|
1020 |
|
|
1021 if (is) |
|
|
1022 { |
|
|
1023 int nr = -1; |
|
|
1024 int nc = -1; |
|
|
1025 |
|
|
1026 get_size (size, nr, nc, "fread"); |
|
|
1027 |
|
|
1028 if (! error_state) |
|
|
1029 retval = do_read (nr, nc, dt, skip, at, count); |
|
|
1030 } |
|
|
1031 else |
|
|
1032 invalid_operation ("fread", "reading"); |
|
|
1033 |
|
|
1034 return retval; |
|
|
1035 } |
|
|
1036 |
|
|
1037 #define do_scanf_conv(is, fmt, valptr, mval, data, idx, max_size, discard) \ |
|
|
1038 do \ |
|
|
1039 { \ |
|
|
1040 is.clear (); \ |
|
|
1041 \ |
|
|
1042 is.scan (fmt, valptr); \ |
|
|
1043 \ |
|
|
1044 if (is) \ |
|
|
1045 { \ |
|
|
1046 if (idx == max_size && ! discard) \ |
|
|
1047 { \ |
|
|
1048 max_size *= 2; \ |
|
|
1049 \ |
|
|
1050 if (nr > 0) \ |
|
|
1051 mval.resize (nr, max_size / 2, 0.0); \ |
|
|
1052 else \ |
|
|
1053 mval.resize (max_size, 1, 0.0); \ |
|
|
1054 \ |
|
|
1055 data = mval.fortran_vec (); \ |
|
|
1056 } \ |
|
|
1057 \ |
|
|
1058 if (! discard) \ |
|
|
1059 data[idx++] = *(valptr); \ |
|
|
1060 } \ |
|
|
1061 } \ |
|
|
1062 while (0) |
|
|
1063 |
|
|
1064 octave_value |
|
|
1065 octave_base_stream::do_scanf (scanf_format_list& fmt_list, |
|
|
1066 int nr, int nc, int& count) |
|
|
1067 { |
|
|
1068 octave_value retval = Matrix (); |
|
|
1069 |
|
|
1070 istream *isp = input_stream (); |
|
|
1071 |
|
|
1072 bool all_char_conv = fmt_list.all_character_conversions (); |
|
|
1073 |
|
|
1074 Matrix mval; |
|
|
1075 double *data = 0; |
|
|
1076 int max_size = 0; |
|
|
1077 |
|
|
1078 int final_nr = 0; |
|
|
1079 int final_nc = 0; |
|
|
1080 |
|
|
1081 if (nr > 0) |
|
|
1082 { |
|
|
1083 if (nc > 0) |
|
|
1084 { |
|
|
1085 mval.resize (nr, nc, 0.0); |
|
|
1086 data = mval.fortran_vec (); |
|
|
1087 max_size = nr * nc; |
|
|
1088 } |
|
|
1089 else |
|
|
1090 { |
|
|
1091 mval.resize (nr, 32, 0.0); |
|
|
1092 data = mval.fortran_vec (); |
|
|
1093 max_size = nr * nc; |
|
|
1094 } |
|
|
1095 } |
|
|
1096 else |
|
|
1097 { |
|
|
1098 mval.resize (32, 1, 0.0); |
|
|
1099 data = mval.fortran_vec (); |
|
|
1100 max_size = 32; |
|
|
1101 } |
|
|
1102 |
|
|
1103 if (isp) |
|
|
1104 { |
|
|
1105 istream is = *isp; |
|
|
1106 |
|
|
1107 const scanf_format_elt *elt = fmt_list.first (); |
|
|
1108 |
|
|
1109 for (;;) |
|
|
1110 { |
|
|
1111 if (elt) |
|
|
1112 { |
|
|
1113 if (nr > 0 && nc > 0 && count == max_size) |
|
|
1114 { |
|
|
1115 final_nr = nr; |
|
|
1116 final_nc = nc; |
|
|
1117 |
|
|
1118 break; |
|
|
1119 } |
|
|
1120 |
|
|
1121 const char *fmt = elt->text; |
|
|
1122 |
|
|
1123 bool discard = elt->discard; |
|
|
1124 |
|
|
1125 switch (elt->type) |
|
|
1126 { |
|
|
1127 case '%': |
|
|
1128 { |
|
|
1129 int dummy; |
|
|
1130 |
|
|
1131 do_scanf_conv (is, fmt, &dummy, mval, data, count, |
|
|
1132 max_size, discard); |
|
|
1133 } |
|
|
1134 break; |
|
|
1135 |
|
|
1136 case 'd': case 'i': case 'o': case 'u': case 'x': |
|
|
1137 { |
|
|
1138 int tmp; |
|
|
1139 |
|
|
1140 do_scanf_conv (is, fmt, &tmp, mval, data, count, |
|
|
1141 max_size, discard); |
|
|
1142 } |
|
|
1143 break; |
|
|
1144 |
|
|
1145 case 'e': case 'f': case 'g': |
|
|
1146 { |
|
|
1147 if (elt->modifier == 'l') |
|
|
1148 { |
|
|
1149 double tmp; |
|
|
1150 |
|
|
1151 do_scanf_conv (is, fmt, &tmp, mval, data, |
|
|
1152 count, max_size, discard); |
|
|
1153 } |
|
|
1154 else |
|
|
1155 { |
|
|
1156 float tmp; |
|
|
1157 |
|
|
1158 do_scanf_conv (is, fmt, &tmp, mval, data, |
|
|
1159 count, max_size, discard); |
|
|
1160 } |
|
|
1161 } |
|
|
1162 break; |
|
|
1163 |
|
|
1164 case 's': |
|
|
1165 case 'c': |
|
|
1166 { |
|
|
1167 char tmp; |
|
|
1168 |
|
|
1169 do_scanf_conv (is, fmt, &tmp, mval, data, count, |
|
|
1170 max_size, discard); |
|
|
1171 } |
|
|
1172 break; |
|
|
1173 |
|
|
1174 case 'p': case '[': |
|
|
1175 error ("fscanf: unrecognized format specifier"); |
|
|
1176 break; |
|
|
1177 |
|
|
1178 default: |
|
|
1179 error ("fscanf: internal format error"); |
|
|
1180 break; |
|
|
1181 } |
|
|
1182 |
|
|
1183 if (! ok ()) |
|
|
1184 { |
|
|
1185 break; |
|
|
1186 } |
|
|
1187 else if (! is) |
|
|
1188 { |
|
|
1189 if (is.eof ()) |
|
|
1190 { |
|
|
1191 if (nr > 0) |
|
|
1192 { |
|
|
1193 if (count > nr) |
|
|
1194 { |
|
|
1195 final_nr = nr; |
|
|
1196 final_nc = (count - 1) / nr + 1; |
|
|
1197 } |
|
|
1198 else |
|
|
1199 { |
|
|
1200 final_nr = count; |
|
|
1201 final_nc = 1; |
|
|
1202 } |
|
|
1203 } |
|
|
1204 else |
|
|
1205 { |
|
|
1206 final_nr = count; |
|
|
1207 final_nc = 1; |
|
|
1208 } |
|
|
1209 } |
|
|
1210 else |
|
|
1211 { |
|
|
1212 error ("fscanf: read error"); |
|
|
1213 |
|
|
1214 // XXX FIXME XXX -- is this the right thing to do? |
|
|
1215 // What about other streams? |
|
|
1216 if (name () == "stdin") |
|
|
1217 { |
|
|
1218 is.clear (); |
|
|
1219 |
|
|
1220 // Skip to end of line. |
|
|
1221 |
|
|
1222 bool err; |
|
|
1223 do_gets (-1, err, false, "fscanf"); |
|
|
1224 } |
|
|
1225 } |
|
|
1226 |
|
|
1227 break; |
|
|
1228 } |
|
|
1229 } |
|
|
1230 else |
|
|
1231 { |
|
|
1232 error ("fscanf: internal format error"); |
|
|
1233 break; |
|
|
1234 } |
|
|
1235 |
|
|
1236 elt = fmt_list.next (); |
|
|
1237 } |
|
|
1238 } |
|
|
1239 |
|
|
1240 if (ok ()) |
|
|
1241 { |
|
|
1242 mval.resize (final_nr, final_nc); |
|
|
1243 |
|
|
1244 if (all_char_conv) |
|
|
1245 { |
|
|
1246 if (nr < 0) |
|
|
1247 mval = mval.transpose (); |
|
|
1248 |
|
|
1249 retval = mval; |
|
|
1250 |
|
|
1251 retval = retval.convert_to_str (); |
|
|
1252 } |
|
|
1253 else |
|
|
1254 retval = mval; |
|
|
1255 } |
|
|
1256 |
|
|
1257 return retval; |
|
|
1258 } |
|
|
1259 |
|
|
1260 octave_value |
|
|
1261 octave_base_stream::scanf (const string& fmt, const Matrix& size, |
|
|
1262 int& count) |
|
|
1263 { |
|
|
1264 // XXX FIXME XXX -- is this the right thing to do? |
|
|
1265 if (name () == "stdin") |
|
|
1266 fail = false; |
|
|
1267 |
|
|
1268 octave_value retval = Matrix (); |
|
|
1269 |
|
|
1270 count = 0; |
|
|
1271 |
|
|
1272 istream *isp = input_stream (); |
|
|
1273 |
|
|
1274 if (isp) |
|
|
1275 { |
|
|
1276 istream is = *isp; |
|
|
1277 |
|
|
1278 scanf_format_list fmt_list (fmt); |
|
|
1279 |
|
|
1280 switch (fmt_list.num_conversions ()) |
|
|
1281 { |
|
|
1282 case -1: |
|
|
1283 ::error ("fscanf: invalid format specified"); |
|
|
1284 break; |
|
|
1285 |
|
|
1286 case 0: |
|
|
1287 { |
|
|
1288 const scanf_format_elt *elt = fmt_list.first (); |
|
|
1289 |
|
|
1290 if (elt) |
|
|
1291 { |
|
|
1292 is.clear (); |
|
|
1293 |
|
|
1294 is.scan (elt->text); |
|
|
1295 |
|
|
1296 if (! is) |
|
|
1297 { |
|
|
1298 error ("fscanf: read error"); |
|
|
1299 |
|
|
1300 // XXX FIXME XXX -- is this the right thing to do? |
|
|
1301 // Maybe. We should probably also arrange to |
|
|
1302 // flush the pending input prior to printing a |
|
|
1303 // prompt. Or maybe just blow off scanf for stdin |
|
|
1304 // like the MathWorks did. What about other streams? |
|
|
1305 |
|
|
1306 if (name () == "stdin") |
|
|
1307 { |
|
|
1308 is.clear (); |
|
|
1309 |
|
|
1310 // Skip to end of line. |
|
|
1311 |
|
|
1312 bool err; |
|
|
1313 do_gets (-1, err, false, "fscanf"); |
|
|
1314 } |
|
|
1315 } |
|
|
1316 } |
|
|
1317 } |
|
|
1318 break; |
|
|
1319 |
|
|
1320 default: |
|
|
1321 { |
|
|
1322 int nr = -1; |
|
|
1323 int nc = -1; |
|
|
1324 |
|
|
1325 get_size (size, nr, nc, "fscanf"); |
|
|
1326 |
|
|
1327 if (! error_state) |
|
|
1328 retval = do_scanf (fmt_list, nr, nc, count); |
|
|
1329 } |
|
|
1330 break; |
|
|
1331 } |
|
|
1332 } |
|
|
1333 else |
|
|
1334 invalid_operation ("fscanf", "writing"); |
|
|
1335 |
|
|
1336 return retval; |
|
|
1337 } |
|
|
1338 |
|
|
1339 // Functions that are defined for all output streams (output streams |
|
|
1340 // are those that define os). |
|
|
1341 |
|
|
1342 int |
|
|
1343 octave_base_stream::flush (void) |
|
|
1344 { |
|
|
1345 int retval = -1; |
|
|
1346 |
|
|
1347 ostream *os = output_stream (); |
|
|
1348 |
|
|
1349 if (os) |
|
|
1350 { |
|
|
1351 os->flush (); |
|
|
1352 |
|
|
1353 if (os->good ()) |
|
|
1354 retval = 0; |
|
|
1355 } |
|
|
1356 else |
|
|
1357 invalid_operation ("fflush", "writing"); |
|
|
1358 |
|
|
1359 return retval; |
|
|
1360 } |
|
|
1361 |
|
|
1362 // XXX FIXME XXX -- need to handle architecture type conversions. |
|
|
1363 |
|
|
1364 #define do_write_elem(os, type, val) \ |
|
|
1365 do \ |
|
|
1366 { \ |
|
|
1367 type tmp_val = (type) val; \ |
|
|
1368 os.write ((char *) &tmp_val, sizeof (type)); \ |
|
|
1369 } \ |
|
|
1370 while (0) |
|
|
1371 |
|
|
1372 int |
|
|
1373 octave_base_stream::do_write (const double *data, int n, data_type dt, |
|
|
1374 int skip, arch_type at) |
|
|
1375 { |
|
|
1376 int retval = -1; |
|
|
1377 |
|
|
1378 int count = 0; |
|
|
1379 |
|
|
1380 ostream *osp = output_stream (); |
|
|
1381 |
|
|
1382 if (osp) |
|
|
1383 { |
|
|
1384 ostream os = *osp; |
|
|
1385 |
|
|
1386 // XXX FIXME XXX -- maybe there should be a special case for |
|
|
1387 // skip == 0. |
|
|
1388 |
|
|
1389 for (int i = 0; i < n; i++) |
|
|
1390 { |
|
|
1391 if (os) |
|
|
1392 { |
|
|
1393 if (skip != 0) |
|
|
1394 seek (skip, ios::cur); |
|
|
1395 |
|
|
1396 if (os) |
|
|
1397 { |
|
|
1398 double tmp = data[i]; |
|
|
1399 |
|
|
1400 switch (dt) |
|
|
1401 { |
|
|
1402 case dt_char: |
|
|
1403 do_write_elem (os, char, tmp); |
|
|
1404 break; |
|
|
1405 |
|
|
1406 case dt_schar: |
|
|
1407 do_write_elem (os, signed char, tmp); |
|
|
1408 break; |
|
|
1409 |
|
|
1410 case dt_uchar: |
|
|
1411 do_write_elem (os, unsigned char, tmp); |
|
|
1412 break; |
|
|
1413 |
|
|
1414 case dt_short: |
|
|
1415 do_write_elem (os, short, tmp); |
|
|
1416 break; |
|
|
1417 |
|
|
1418 case dt_ushort: |
|
|
1419 do_write_elem (os, unsigned short, tmp); |
|
|
1420 break; |
|
|
1421 |
|
|
1422 case dt_int: |
|
|
1423 do_write_elem (os, int, tmp); |
|
|
1424 break; |
|
|
1425 |
|
|
1426 case dt_uint: |
|
|
1427 do_write_elem (os, unsigned int, tmp); |
|
|
1428 break; |
|
|
1429 |
|
|
1430 case dt_long: |
|
|
1431 do_write_elem (os, long, tmp); |
|
|
1432 break; |
|
|
1433 |
|
|
1434 case dt_ulong: |
|
|
1435 do_write_elem (os, unsigned long, tmp); |
|
|
1436 break; |
|
|
1437 |
|
|
1438 case dt_float: |
|
|
1439 do_write_elem (os, float, tmp); |
|
|
1440 break; |
|
|
1441 |
|
|
1442 case dt_double: |
|
|
1443 do_write_elem (os, double, tmp); |
|
|
1444 break; |
|
|
1445 |
|
|
1446 default: |
|
|
1447 error ("fwrite: invalid type specification"); |
|
|
1448 } |
|
|
1449 |
|
|
1450 if (os && ok ()) |
|
|
1451 count++; |
|
|
1452 else |
|
|
1453 break; |
|
|
1454 } |
|
|
1455 else |
|
|
1456 { |
|
|
1457 error ("fwrite: write error"); |
|
|
1458 break; |
|
|
1459 } |
|
|
1460 } |
|
|
1461 else |
|
|
1462 { |
|
|
1463 error ("fwrite: write error"); |
|
|
1464 break; |
|
|
1465 } |
|
|
1466 } |
|
|
1467 } |
|
|
1468 |
|
|
1469 if (ok ()) |
|
|
1470 retval = count; |
|
|
1471 |
|
|
1472 return retval; |
|
|
1473 } |
|
|
1474 |
|
|
1475 int |
|
|
1476 octave_base_stream::write (const octave_value& data, data_type dt, |
|
|
1477 int skip, arch_type at) |
|
|
1478 { |
|
|
1479 int retval = -1; |
|
|
1480 |
|
|
1481 ostream *os = output_stream (); |
|
|
1482 |
|
|
1483 if (os) |
|
|
1484 { |
|
|
1485 Matrix mval = data.matrix_value (); |
|
|
1486 |
|
|
1487 if (! error_state) |
|
|
1488 { |
|
|
1489 int n = mval.length (); |
|
|
1490 |
|
|
1491 const double *d = mval.data (); |
|
|
1492 |
|
|
1493 retval = octave_base_stream::do_write (d, n, dt, skip, at); |
|
|
1494 } |
|
|
1495 } |
|
|
1496 else |
|
|
1497 invalid_operation ("fwrite", "writing"); |
|
|
1498 |
|
|
1499 return retval; |
|
|
1500 } |
|
|
1501 |
|
|
1502 class |
|
|
1503 printf_value_cache |
|
|
1504 { |
|
|
1505 public: |
|
|
1506 |
|
|
1507 enum state { ok, list_exhausted, conversion_error }; |
|
|
1508 |
|
|
1509 printf_value_cache (const octave_value_list& args) |
|
|
1510 : values (args), val_idx (0), elt_idx (0), |
|
|
1511 n_vals (values.length ()), n_elts (0), data (0), |
|
|
1512 curr_state (ok) { } |
|
|
1513 |
|
|
1514 ~printf_value_cache (void) { } |
|
|
1515 |
|
|
1516 // Get the current value as a double and advance the internal pointer. |
|
|
1517 double double_value (void); |
|
|
1518 |
|
|
1519 // Get the current value as an int and advance the internal pointer. |
|
|
1520 int int_value (void); |
|
|
1521 |
|
|
1522 // Get the current value as a string and advance the internal pointer. |
|
|
1523 string string_value (void); |
|
|
1524 |
|
|
1525 operator void* () const |
|
|
1526 { return (curr_state == ok) ? (void *) -1 : (void *) 0; } |
|
|
1527 |
|
|
1528 bool no_more_values (void) { return curr_state == list_exhausted; } |
|
|
1529 |
|
|
1530 bool looking_at_string (void); |
|
|
1531 |
|
|
1532 private: |
|
|
1533 |
|
|
1534 const octave_value_list values; |
|
|
1535 int val_idx; |
|
|
1536 int elt_idx; |
|
|
1537 int n_vals; |
|
|
1538 int n_elts; |
|
|
1539 const double *data; |
|
|
1540 Matrix curr_val; |
|
|
1541 state curr_state; |
|
|
1542 |
|
|
1543 // Must create value cache with values! |
|
|
1544 |
|
|
1545 printf_value_cache (void); |
|
|
1546 |
|
|
1547 // No copying! |
|
|
1548 |
|
|
1549 printf_value_cache (const printf_value_cache&); |
|
|
1550 |
|
|
1551 printf_value_cache& operator = (const printf_value_cache&); |
|
|
1552 }; |
|
|
1553 |
|
|
1554 bool |
|
|
1555 printf_value_cache::looking_at_string (void) |
|
|
1556 { |
|
|
1557 bool retval = false; |
|
|
1558 |
|
|
1559 int idx = -1; |
|
|
1560 |
|
|
1561 if (elt_idx == 0) |
|
|
1562 idx = val_idx; |
|
|
1563 else if (elt_idx >= n_elts) |
|
|
1564 idx = val_idx + 1; |
|
|
1565 |
|
|
1566 if (idx >= 0 && idx < n_vals) |
|
|
1567 { |
|
|
1568 octave_value tmp_val = values (idx); |
|
|
1569 |
|
|
1570 retval = tmp_val.is_string () && tmp_val.rows () == 1; |
|
|
1571 } |
|
|
1572 |
|
|
1573 return retval; |
|
|
1574 } |
|
|
1575 |
|
|
1576 double |
|
|
1577 printf_value_cache::double_value (void) |
|
|
1578 { |
|
|
1579 double retval = 0.0; |
|
|
1580 |
|
|
1581 while (val_idx < n_vals) |
|
|
1582 { |
|
|
1583 if (! data) |
|
|
1584 { |
|
|
1585 octave_value tmp_val = values (val_idx); |
|
|
1586 |
|
|
1587 curr_val = tmp_val.matrix_value (); |
|
|
1588 |
|
|
1589 if (! error_state) |
|
|
1590 { |
|
|
1591 elt_idx = 0; |
|
|
1592 n_elts = curr_val.length (); |
|
|
1593 data = curr_val.data (); |
|
|
1594 } |
|
|
1595 else |
|
|
1596 { |
|
|
1597 curr_state = conversion_error; |
|
|
1598 break; |
|
|
1599 } |
|
|
1600 } |
|
|
1601 |
|
|
1602 if (elt_idx < n_elts) |
|
|
1603 { |
|
|
1604 return data[elt_idx++]; |
|
|
1605 break; |
|
|
1606 } |
|
|
1607 else |
|
|
1608 { |
|
|
1609 val_idx++; |
|
|
1610 data = 0; |
|
|
1611 continue; |
|
|
1612 } |
|
|
1613 } |
|
|
1614 |
|
|
1615 curr_state = list_exhausted; |
|
|
1616 |
|
|
1617 return retval; |
|
|
1618 } |
|
|
1619 |
|
|
1620 int |
|
|
1621 printf_value_cache::int_value (void) |
|
|
1622 { |
|
|
1623 int retval = 0; |
|
|
1624 |
|
|
1625 double dval = double_value (); |
|
|
1626 |
|
|
1627 if (! error_state) |
|
|
1628 { |
|
|
1629 if (D_NINT (dval) == dval) |
|
|
1630 retval = NINT (dval); |
|
|
1631 else |
|
|
1632 curr_state = conversion_error; |
|
|
1633 } |
|
|
1634 |
|
|
1635 return retval; |
|
|
1636 } |
|
|
1637 |
|
|
1638 string |
|
|
1639 printf_value_cache::string_value (void) |
|
|
1640 { |
|
|
1641 string retval; |
|
|
1642 |
|
|
1643 if (looking_at_string ()) |
|
|
1644 { |
|
|
1645 if (elt_idx != 0) |
|
|
1646 { |
|
|
1647 val_idx++; |
|
|
1648 elt_idx = 0; |
|
|
1649 data = 0; |
|
|
1650 } |
|
|
1651 |
|
|
1652 retval = values (val_idx++).string_value (); |
|
|
1653 } |
|
|
1654 else |
|
|
1655 curr_state = conversion_error; |
|
|
1656 |
|
|
1657 return retval; |
|
|
1658 } |
|
|
1659 |
|
|
1660 // Ugh again and again. |
|
|
1661 |
|
|
1662 #define do_printf_conv(os, fmt, nsa, sa_1, sa_2, have_arg, arg) \ |
|
|
1663 do \ |
|
|
1664 { \ |
|
|
1665 switch (nsa) \ |
|
|
1666 { \ |
|
|
1667 case 2: \ |
|
|
1668 if (have_arg) \ |
|
|
1669 os.form (fmt, sa_1, sa_2, arg); \ |
|
|
1670 else \ |
|
|
1671 os.form (fmt, sa_1, sa_2); \ |
|
|
1672 break; \ |
|
|
1673 \ |
|
|
1674 case 1: \ |
|
|
1675 if (have_arg) \ |
|
|
1676 os.form (fmt, sa_1, arg); \ |
|
|
1677 else \ |
|
|
1678 os.form (fmt, sa_1); \ |
|
|
1679 break; \ |
|
|
1680 \ |
|
|
1681 case 0: \ |
|
|
1682 if (have_arg) \ |
|
|
1683 os.form (fmt, arg); \ |
|
|
1684 else \ |
|
|
1685 os.form (fmt); \ |
|
|
1686 break; \ |
|
|
1687 \ |
|
|
1688 default: \ |
|
|
1689 ::error ("fprintf: internal error handling format"); \ |
|
|
1690 break; \ |
|
|
1691 } \ |
|
|
1692 } \ |
|
|
1693 while (0) |
|
|
1694 |
|
|
1695 int |
|
|
1696 octave_base_stream::do_printf (printf_format_list& fmt_list, |
|
|
1697 const octave_value_list& args) |
|
|
1698 { |
|
|
1699 int retval = -1; |
|
|
1700 |
|
|
1701 ostream *osp = output_stream (); |
|
|
1702 |
|
|
1703 if (osp) |
|
|
1704 { |
|
|
1705 ostream os = *osp; |
|
|
1706 |
|
|
1707 const printf_format_elt *elt = fmt_list.first (); |
|
|
1708 |
|
|
1709 printf_value_cache val_cache (args); |
|
|
1710 |
|
|
1711 for (;;) |
|
|
1712 { |
|
|
1713 if (elt) |
|
|
1714 { |
|
|
1715 int args = elt->args; |
|
|
1716 int nsa = args; |
|
|
1717 |
|
|
1718 int doing_percent = elt->type == '%'; |
|
|
1719 |
|
|
1720 if (args > 0 && ! doing_percent) |
|
|
1721 nsa--; |
|
|
1722 |
|
|
1723 int sa_1 = 0; |
|
|
1724 int sa_2 = 0; |
|
|
1725 |
|
|
1726 if (nsa > 0) |
|
|
1727 { |
|
|
1728 sa_1 = val_cache.int_value (); |
|
|
1729 |
|
|
1730 if (! val_cache) |
|
|
1731 break; |
|
|
1732 else |
|
|
1733 { |
|
|
1734 if (nsa > 1) |
|
|
1735 { |
|
|
1736 sa_2 = val_cache.int_value (); |
|
|
1737 |
|
|
1738 if (! val_cache) |
|
|
1739 break; |
|
|
1740 } |
|
|
1741 } |
|
|
1742 } |
|
|
1743 |
|
|
1744 const char *fmt = elt->text; |
|
|
1745 |
|
|
1746 if (doing_percent || args == 0) |
|
|
1747 do_printf_conv (os, fmt, nsa, sa_1, sa_2, 0, 0.0); |
|
|
1748 else |
|
|
1749 { |
|
|
1750 if (elt->type == 's' && val_cache.looking_at_string ()) |
|
|
1751 { |
|
|
1752 string val = val_cache.string_value (); |
|
|
1753 |
|
|
1754 if (val_cache) |
|
|
1755 do_printf_conv (os, fmt, nsa, sa_1, sa_2, 1, |
|
|
1756 val.c_str ()); |
|
|
1757 else |
|
|
1758 break; |
|
|
1759 } |
|
|
1760 else |
|
|
1761 { |
|
|
1762 double val = val_cache.double_value (); |
|
|
1763 |
|
|
1764 if (val_cache) |
|
|
1765 { |
|
|
1766 switch (elt->type) |
|
|
1767 { |
|
|
1768 case 'd': case 'i': case 'o': case 'x': |
|
|
1769 case 'X': case 'u': case 'c': |
|
|
1770 { |
|
|
1771 if (elt->modifier == 'l') |
|
|
1772 do_printf_conv (os, fmt, nsa, sa_1, |
|
|
1773 sa_2, 1, (long) val); |
|
|
1774 else |
|
|
1775 do_printf_conv (os, fmt, nsa, sa_1, |
|
|
1776 sa_2, 1, (int) val); |
|
|
1777 } |
|
|
1778 break; |
|
|
1779 |
|
|
1780 case 'f': case 'e': case 'E': |
|
|
1781 case 'g': case 'G': |
|
|
1782 do_printf_conv (os, fmt, nsa, sa_1, |
|
|
1783 sa_2, 1, val); |
|
|
1784 break; |
|
|
1785 |
|
|
1786 default: |
|
|
1787 error ("fprintf: invalid format specifier"); |
|
|
1788 return -1; |
|
|
1789 break; |
|
|
1790 } |
|
|
1791 } |
|
|
1792 else |
|
|
1793 break; |
|
|
1794 } |
|
|
1795 |
|
|
1796 if (val_cache.no_more_values ()) |
|
|
1797 { |
|
|
1798 retval = 0; |
|
|
1799 break; |
|
|
1800 } |
|
|
1801 } |
|
|
1802 |
|
|
1803 if (os) |
|
|
1804 retval += nsa + (doing_percent ? 0 : 1); |
|
|
1805 else |
|
|
1806 { |
|
|
1807 error ("fprintf: write error"); |
|
|
1808 retval = -1; |
|
|
1809 break; |
|
|
1810 } |
|
|
1811 } |
|
|
1812 else |
|
|
1813 { |
|
|
1814 ::error ("fprintf: internal error handling format"); |
|
|
1815 retval = -1; |
|
|
1816 break; |
|
|
1817 } |
|
|
1818 |
|
|
1819 elt = fmt_list.next (); |
|
|
1820 } |
|
|
1821 } |
|
|
1822 |
|
|
1823 return retval; |
|
|
1824 } |
|
|
1825 |
|
|
1826 int |
|
|
1827 octave_base_stream::printf (const string& fmt, const octave_value_list& args) |
|
|
1828 { |
|
|
1829 int retval = -1; |
|
|
1830 |
|
|
1831 ostream *osp = output_stream (); |
|
|
1832 |
|
|
1833 if (osp) |
|
|
1834 { |
|
|
1835 ostream os = *osp; |
|
|
1836 |
|
|
1837 printf_format_list fmt_list (fmt); |
|
|
1838 |
|
|
1839 switch (fmt_list.num_conversions ()) |
|
|
1840 { |
|
|
1841 case -1: |
|
|
1842 ::error ("fprintf: invalid format specified"); |
|
|
1843 break; |
|
|
1844 |
|
|
1845 case 0: |
|
|
1846 { |
|
|
1847 const printf_format_elt *elt = fmt_list.first (); |
|
|
1848 |
|
|
1849 if (elt) |
|
|
1850 { |
|
|
1851 os.form (elt->text); |
|
|
1852 |
|
|
1853 if (os) |
|
|
1854 retval = 0; |
|
|
1855 else |
|
|
1856 error ("fprintf: write error"); |
|
|
1857 } |
|
|
1858 } |
|
|
1859 break; |
|
|
1860 |
|
|
1861 default: |
|
|
1862 { |
|
|
1863 if (args.length () == 0) |
|
|
1864 ::error ("fprintf: no arguments available for specified format"); |
|
|
1865 else |
|
|
1866 retval = do_printf (fmt_list, args); |
|
|
1867 } |
|
|
1868 break; |
|
|
1869 } |
|
|
1870 } |
|
|
1871 else |
|
|
1872 invalid_operation ("fprintf", "writing"); |
|
|
1873 |
|
|
1874 return retval; |
|
|
1875 } |
|
|
1876 |
|
|
1877 int |
|
|
1878 octave_base_stream::puts (const string& s) |
|
|
1879 { |
|
|
1880 int retval = -1; |
|
|
1881 |
|
|
1882 ostream *osp = output_stream (); |
|
|
1883 |
|
|
1884 if (osp) |
|
|
1885 { |
|
|
1886 ostream os = *osp; |
|
|
1887 |
|
|
1888 os << s; |
|
|
1889 |
|
|
1890 if (os) |
|
|
1891 { |
|
|
1892 // XXX FIXME XXX -- why does this seem to be necessary? |
|
|
1893 // Without it, output from a loop like |
|
|
1894 // |
|
|
1895 // for i = 1:100, fputs (stdout, "foo\n"); endfor |
|
|
1896 // |
|
|
1897 // doesn't seem to go to the pager immediately. |
|
|
1898 |
|
|
1899 os.flush (); |
|
|
1900 |
|
|
1901 if (os) |
|
|
1902 retval = 0; |
|
|
1903 else |
|
|
1904 error ("fputs: write error"); |
|
|
1905 } |
|
|
1906 else |
|
|
1907 error ("fputs: write error"); |
|
|
1908 } |
|
|
1909 else |
|
|
1910 invalid_operation ("fputs", "writing"); |
|
|
1911 |
|
|
1912 return retval; |
|
|
1913 } |
|
|
1914 |
|
|
1915 int |
|
|
1916 octave_base_stream::rewind (void) |
|
|
1917 { |
|
|
1918 return seek (0, ios::beg); |
|
|
1919 } |
|
|
1920 |
|
|
1921 // Return current error message for this stream. |
|
|
1922 |
|
|
1923 string |
|
|
1924 octave_base_stream::error (bool clear_err, int& errno) |
|
|
1925 { |
|
|
1926 errno = fail ? -1 : 0; |
|
|
1927 |
|
|
1928 string tmp = errmsg; |
|
|
1929 |
|
|
1930 if (clear_err) |
|
|
1931 clear (); |
|
|
1932 |
|
|
1933 return tmp; |
|
|
1934 } |
|
|
1935 |
|
|
1936 void |
|
|
1937 octave_base_stream::invalid_operation (const char *op, const char *rw) |
|
|
1938 { |
|
|
1939 string msg = op; |
|
|
1940 msg.append (": stream not open for "); |
|
|
1941 msg.append (rw); |
|
|
1942 error (msg); |
|
|
1943 } |
|
|
1944 |
|
|
1945 int |
|
|
1946 octave_stream::flush (void) |
|
|
1947 { |
|
|
1948 int retval = -1; |
|
|
1949 |
|
|
1950 if (stream_ok ("fflush")) |
|
|
1951 retval = rep->flush (); |
|
|
1952 |
|
|
1953 return retval; |
|
|
1954 } |
|
|
1955 |
|
|
1956 string |
|
|
1957 octave_stream::getl (int max_len, bool& err) |
|
|
1958 { |
|
|
1959 string retval; |
|
|
1960 |
|
|
1961 if (stream_ok ("getl")) |
|
|
1962 retval = rep->getl (max_len, err); |
|
|
1963 |
|
|
1964 return retval; |
|
|
1965 } |
|
|
1966 |
|
|
1967 string |
|
|
1968 octave_stream::getl (const octave_value& tc_max_len, bool& err) |
|
|
1969 { |
|
|
1970 string retval; |
|
|
1971 |
|
|
1972 err = false; |
|
|
1973 |
|
|
1974 int conv_err = 0; |
|
|
1975 |
|
|
1976 int max_len = convert_to_valid_int (tc_max_len, conv_err); |
|
|
1977 |
|
|
1978 if (conv_err || max_len < 0) |
|
|
1979 { |
|
|
1980 err = true; |
|
|
1981 ::error ("fgetl: invalid maximum length specified"); |
|
|
1982 } |
|
|
1983 else |
|
|
1984 retval = getl (max_len, err); |
|
|
1985 |
|
|
1986 return retval; |
|
|
1987 } |
|
|
1988 |
|
|
1989 string |
|
|
1990 octave_stream::gets (int max_len, bool& err) |
|
|
1991 { |
|
|
1992 string retval; |
|
|
1993 |
|
|
1994 if (stream_ok ("fgets")) |
|
|
1995 retval = rep->gets (max_len, err); |
|
|
1996 |
|
|
1997 return retval; |
|
|
1998 } |
|
|
1999 |
|
|
2000 string |
|
|
2001 octave_stream::gets (const octave_value& tc_max_len, bool& err) |
|
|
2002 { |
|
|
2003 string retval; |
|
|
2004 |
|
|
2005 err = false; |
|
|
2006 |
|
|
2007 int conv_err = 0; |
|
|
2008 |
|
|
2009 int max_len = convert_to_valid_int (tc_max_len, conv_err); |
|
|
2010 |
|
|
2011 if (conv_err || max_len < 0) |
|
|
2012 { |
|
|
2013 err = true; |
|
|
2014 ::error ("fgets: invalid maximum length specified"); |
|
|
2015 } |
|
|
2016 else |
|
|
2017 retval = gets (max_len, err); |
|
|
2018 |
|
|
2019 return retval; |
|
|
2020 } |
|
|
2021 |
|
|
2022 int |
|
|
2023 octave_stream::seek (streampos offset, ios::seek_dir origin) |
|
|
2024 { |
|
|
2025 int retval = -1; |
|
|
2026 |
|
|
2027 if (stream_ok ("fseek")) |
|
|
2028 retval = rep->seek (offset, origin); |
|
|
2029 |
|
|
2030 return retval; |
|
|
2031 } |
|
|
2032 |
|
|
2033 int |
|
|
2034 octave_stream::seek (const octave_value& tc_offset, |
|
|
2035 const octave_value& tc_origin) |
|
|
2036 { |
|
|
2037 int retval = -1; |
|
|
2038 |
|
|
2039 int conv_err = 0; |
|
|
2040 |
|
|
2041 int xoffset = convert_to_valid_int (tc_offset, conv_err); |
|
|
2042 |
|
|
2043 if (! conv_err) |
|
|
2044 { |
|
|
2045 int xorigin = convert_to_valid_int (tc_origin, conv_err); |
|
|
2046 |
|
|
2047 ios::seek_dir origin = ios::beg; |
|
|
2048 |
|
|
2049 // XXX FIXME XXX -- matlab allows origin to be: |
|
|
2050 // |
|
|
2051 // "bof" or -1 == ios::beg |
|
|
2052 // "cof" or 0 == ios::cur |
|
|
2053 // "eof" or 1 == ios::end |
|
|
2054 |
|
|
2055 if (! conv_err) |
|
|
2056 { |
|
|
2057 if (xorigin == 0) |
|
|
2058 origin = ios::beg; |
|
|
2059 else if (xorigin == 1) |
|
|
2060 origin = ios::cur; |
|
|
2061 else if (xorigin == 2) |
|
|
2062 origin = ios::end; |
|
|
2063 else |
|
|
2064 conv_err = -1; |
|
|
2065 } |
|
|
2066 |
|
|
2067 if (! conv_err) |
|
|
2068 retval = seek (xoffset, origin); |
|
|
2069 else |
|
|
2070 error ("fseek: invalid value for origin"); |
|
|
2071 } |
|
|
2072 else |
|
|
2073 error ("fseek: invalid value for offset"); |
|
|
2074 |
|
|
2075 return retval; |
|
|
2076 } |
|
|
2077 |
|
|
2078 long |
|
|
2079 octave_stream::tell (void) const |
|
|
2080 { |
|
|
2081 long retval = -1; |
|
|
2082 |
|
|
2083 if (stream_ok ("tell")) |
|
|
2084 retval = rep->tell (); |
|
|
2085 |
|
|
2086 return retval; |
|
|
2087 } |
|
|
2088 |
|
|
2089 int |
|
|
2090 octave_stream::rewind (void) |
|
|
2091 { |
|
|
2092 int retval = -1; |
|
|
2093 |
|
|
2094 if (stream_ok ("frewind")) |
|
|
2095 retval = rep->rewind (); |
|
|
2096 |
|
|
2097 return retval; |
|
|
2098 } |
|
|
2099 |
|
|
2100 octave_value |
|
|
2101 octave_stream::read (const Matrix& size, |
|
|
2102 octave_base_stream::data_type dt, int skip, |
|
|
2103 octave_base_stream::arch_type at, int& count) |
|
|
2104 { |
|
|
2105 octave_value retval; |
|
|
2106 |
|
|
2107 if (stream_ok ("fread")) |
|
|
2108 retval = rep->read (size, dt, skip, at, count); |
|
|
2109 |
|
|
2110 return retval; |
|
|
2111 } |
|
|
2112 |
|
|
2113 int |
|
|
2114 octave_stream::write (const octave_value& data, |
|
|
2115 octave_base_stream::data_type dt, int skip, |
|
|
2116 octave_base_stream::arch_type at) |
|
|
2117 { |
|
|
2118 int retval = -1; |
|
|
2119 |
|
|
2120 if (stream_ok ("fwrite")) |
|
|
2121 retval = rep->write (data, dt, skip, at); |
|
|
2122 |
|
|
2123 return retval; |
|
|
2124 } |
|
|
2125 |
|
|
2126 octave_value |
|
|
2127 octave_stream::scanf (const string& fmt, const Matrix& size, int& count) |
|
|
2128 { |
|
|
2129 octave_value retval; |
|
|
2130 |
|
|
2131 if (stream_ok ("fscanf")) |
|
|
2132 retval = rep->scanf (fmt, size, count); |
|
|
2133 |
|
|
2134 return retval; |
|
|
2135 } |
|
|
2136 |
|
|
2137 int |
|
|
2138 octave_stream::printf (const string& fmt, const octave_value_list& args) |
|
|
2139 { |
|
|
2140 int retval = -1; |
|
|
2141 |
|
|
2142 if (stream_ok ("fprintf")) |
|
|
2143 retval = rep->printf (fmt, args); |
|
|
2144 |
|
|
2145 return retval; |
|
|
2146 } |
|
|
2147 |
|
|
2148 int |
|
|
2149 octave_stream::puts (const string& s) |
|
|
2150 { |
|
|
2151 int retval = -1; |
|
|
2152 |
|
|
2153 if (stream_ok ("fputs")) |
|
|
2154 retval = rep->puts (s); |
|
|
2155 |
|
|
2156 return retval; |
|
|
2157 } |
|
|
2158 |
|
|
2159 // XXX FIXME XXX -- maybe this should work for string arrays too. |
|
|
2160 |
|
|
2161 int |
|
|
2162 octave_stream::puts (const octave_value& tc_s) |
|
|
2163 { |
|
|
2164 int retval = -1; |
|
|
2165 |
|
|
2166 if (tc_s.is_string ()) |
|
|
2167 { |
|
|
2168 string s = tc_s.string_value (); |
|
|
2169 retval = rep->puts (s); |
|
|
2170 } |
|
|
2171 else |
|
|
2172 error ("fputs: argument must be a string"); |
|
|
2173 |
|
|
2174 return retval; |
|
|
2175 } |
|
|
2176 |
|
|
2177 bool |
|
|
2178 octave_stream::eof (void) const |
|
|
2179 { |
|
|
2180 int retval = -1; |
|
|
2181 |
|
|
2182 if (stream_ok ("feof")) |
|
|
2183 retval = rep->eof (); |
|
|
2184 |
|
|
2185 return retval; |
|
|
2186 } |
|
|
2187 |
|
|
2188 string |
|
|
2189 octave_stream::error (bool clear, int& errno) |
|
|
2190 { |
|
|
2191 string retval; |
|
|
2192 |
|
|
2193 if (stream_ok ("ferror", false)) |
|
|
2194 retval = rep->error (clear, errno); |
|
|
2195 |
|
|
2196 cerr << retval; |
|
|
2197 |
|
|
2198 return retval; |
|
|
2199 } |
|
|
2200 |
|
|
2201 string |
|
|
2202 octave_stream::name (void) |
|
|
2203 { |
|
|
2204 string retval; |
|
|
2205 |
|
|
2206 if (stream_ok ("name")) |
|
|
2207 retval = rep->name (); |
|
|
2208 |
|
|
2209 return retval; |
|
|
2210 } |
|
|
2211 |
|
|
2212 int |
|
|
2213 octave_stream::mode (void) |
|
|
2214 { |
|
|
2215 int retval = 0; |
|
|
2216 |
|
|
2217 if (stream_ok ("mode")) |
|
|
2218 retval = rep->mode (); |
|
|
2219 |
|
|
2220 return retval; |
|
|
2221 } |
|
|
2222 |
|
|
2223 octave_base_stream::arch_type |
|
|
2224 octave_stream::architecture (void) |
|
|
2225 { |
|
|
2226 octave_base_stream::arch_type retval = octave_base_stream::at_unknown; |
|
|
2227 |
|
|
2228 if (stream_ok ("architecture")) |
|
|
2229 retval = rep->architecture (); |
|
|
2230 |
|
|
2231 return retval; |
|
|
2232 } |
|
|
2233 |
|
|
2234 string |
|
|
2235 octave_stream::mode_as_string (int mode) |
|
|
2236 { |
|
|
2237 string retval = "???"; |
|
|
2238 |
|
|
2239 switch (mode) |
|
|
2240 { |
|
|
2241 case ios::in: |
|
|
2242 retval = "r"; |
|
|
2243 break; |
|
|
2244 |
|
|
2245 case ios::out: |
|
|
2246 case ios::out | ios::trunc: |
|
|
2247 retval = "w"; |
|
|
2248 break; |
|
|
2249 |
|
|
2250 case ios::out | ios::app: |
|
|
2251 retval = "a"; |
|
|
2252 break; |
|
|
2253 |
|
|
2254 case ios::in | ios::out: |
|
|
2255 retval = "r+"; |
|
|
2256 break; |
|
|
2257 |
|
|
2258 case ios::in | ios::out | ios::trunc: |
|
|
2259 retval = "w+"; |
|
|
2260 break; |
|
|
2261 |
|
|
2262 case ios::in | ios::out | ios::app: |
|
|
2263 retval = "a+"; |
|
|
2264 break; |
|
|
2265 |
|
|
2266 case ios::in | ios::bin: |
|
|
2267 retval = "rb"; |
|
|
2268 break; |
|
|
2269 |
|
|
2270 case ios::out | ios::bin: |
|
|
2271 case ios::out | ios::trunc | ios::bin: |
|
|
2272 retval = "wb"; |
|
|
2273 break; |
|
|
2274 |
|
|
2275 case ios::out | ios::app | ios::bin: |
|
|
2276 retval = "ab"; |
|
|
2277 break; |
|
|
2278 |
|
|
2279 case ios::in | ios::out | ios::bin: |
|
|
2280 retval = "r+b"; |
|
|
2281 break; |
|
|
2282 |
|
|
2283 case ios::in | ios::out | ios::trunc | ios::bin: |
|
|
2284 retval = "w+b"; |
|
|
2285 break; |
|
|
2286 |
|
|
2287 case ios::in | ios::out | ios::app | ios::bin: |
|
|
2288 retval = "a+b"; |
|
|
2289 break; |
|
|
2290 |
|
|
2291 default: |
|
|
2292 break; |
|
|
2293 } |
|
|
2294 |
|
|
2295 return retval; |
|
|
2296 } |
|
|
2297 |
|
|
2298 string |
|
|
2299 octave_stream::arch_as_string (octave_base_stream::arch_type at) |
|
|
2300 { |
|
|
2301 string retval = "unknown"; |
|
|
2302 |
|
|
2303 switch (at) |
|
|
2304 { |
|
|
2305 case octave_base_stream::at_native: |
|
|
2306 retval = "native"; |
|
|
2307 break; |
|
|
2308 |
|
|
2309 default: |
|
|
2310 break; |
|
|
2311 } |
|
|
2312 |
|
|
2313 return retval; |
|
|
2314 } |
|
|
2315 |
|
|
2316 octave_base_stream::data_type |
|
|
2317 octave_stream::string_to_data_type (const string& s) |
|
|
2318 { |
|
|
2319 octave_base_stream::data_type retval = octave_base_stream::dt_unknown; |
|
|
2320 |
|
|
2321 // XXX FINISHME XXX |
|
|
2322 |
|
|
2323 /* |
|
|
2324 int16 |
|
|
2325 integer*2 |
|
|
2326 int32 |
|
|
2327 integer*4 */ |
|
|
2328 |
|
|
2329 // XXX FIXME XXX -- before checking s, need to strip spaces and downcase. |
|
|
2330 |
|
|
2331 if (s == "char" || s == "char*1" || s == "integer*1" || s == "int8") |
|
|
2332 retval = octave_base_stream::dt_char; |
|
|
2333 else if (s == "schar" || s == "signedchar") |
|
|
2334 retval = octave_base_stream::dt_schar; |
|
|
2335 else if (s == "uchar" || s == "unsignedchar") |
|
|
2336 retval = octave_base_stream::dt_uchar; |
|
|
2337 else if (s == "short") |
|
|
2338 retval = octave_base_stream::dt_short; |
|
|
2339 else if (s == "ushort" || s == "unsignedshort") |
|
|
2340 retval = octave_base_stream::dt_ushort; |
|
|
2341 else if (s == "int") |
|
|
2342 retval = octave_base_stream::dt_int; |
|
|
2343 else if (s == "uint" || s == "unsignedint") |
|
|
2344 retval = octave_base_stream::dt_uint; |
|
|
2345 else if (s == "long") |
|
|
2346 retval = octave_base_stream::dt_long; |
|
|
2347 else if (s == "ulong" || s == "unsignedlong") |
|
|
2348 retval = octave_base_stream::dt_ulong; |
|
|
2349 else if (s == "float" || s == "float32" || s == "real*4") |
|
|
2350 retval = octave_base_stream::dt_float; |
|
|
2351 else if (s == "double" || s == "float64" || s == "real**") |
|
|
2352 retval = octave_base_stream::dt_double; |
|
|
2353 else |
|
|
2354 ::error ("invalid data type specified"); |
|
|
2355 |
|
|
2356 return retval; |
|
|
2357 } |
|
|
2358 |
|
|
2359 octave_base_stream::arch_type |
|
|
2360 octave_stream::string_to_arch_type (const string& s) |
|
|
2361 { |
|
|
2362 octave_base_stream::arch_type retval = octave_base_stream::at_unknown; |
|
|
2363 |
|
|
2364 if (s == "native") |
|
|
2365 retval = octave_base_stream::at_native; |
|
|
2366 else |
|
|
2367 ::error ("invalid architecture type specified"); |
|
|
2368 |
|
|
2369 return retval; |
|
|
2370 } |
|
|
2371 |
|
|
2372 void |
|
|
2373 octave_stream::invalid_stream_error (const char *op) const |
|
|
2374 { |
|
|
2375 ::error ("%s: attempt to use invalid I/O stream", op); |
|
|
2376 } |
|
|
2377 |
|
|
2378 octave_stream_list *octave_stream_list::instance = 0; |
|
|
2379 |
|
|
2380 int |
|
|
2381 octave_stream_list::do_insert (octave_base_stream *obs) |
|
|
2382 { |
|
|
2383 int retval = -1; |
|
|
2384 |
|
|
2385 if (obs) |
|
|
2386 { |
|
|
2387 octave_stream *os = new octave_stream (obs); |
|
|
2388 |
|
|
2389 // Insert item in first open slot, increasing size of list if |
|
|
2390 // necessary. |
|
|
2391 |
|
|
2392 for (int i = 0; i < curr_len; i++) |
|
|
2393 { |
|
|
2394 octave_stream *tmp = list.elem (i); |
|
|
2395 |
|
|
2396 if (! tmp) |
|
|
2397 { |
|
|
2398 list.elem (i) = os; |
|
|
2399 retval = i; |
|
|
2400 break; |
|
|
2401 } |
|
|
2402 } |
|
|
2403 |
|
|
2404 if (retval < 0) |
|
|
2405 { |
|
|
2406 int total_len = list.length (); |
|
|
2407 |
|
|
2408 if (curr_len == total_len) |
|
|
2409 list.resize (total_len * 2); |
|
|
2410 |
|
|
2411 list.elem (curr_len) = os; |
|
|
2412 retval = curr_len; |
|
|
2413 curr_len++; |
|
|
2414 } |
|
|
2415 } |
|
|
2416 else |
|
|
2417 ::error ("octave_stream_list: attempt to insert invalid stream"); |
|
|
2418 |
|
|
2419 return retval; |
|
|
2420 } |
|
|
2421 |
|
|
2422 int |
|
|
2423 octave_stream_list::insert (octave_base_stream *obs) |
|
|
2424 { |
|
|
2425 int retval = -1; |
|
|
2426 |
|
|
2427 if (! instance) |
|
|
2428 instance = new octave_stream_list (); |
|
|
2429 |
|
|
2430 if (instance) |
|
|
2431 retval = instance->do_insert (obs); |
|
|
2432 else |
|
|
2433 panic_impossible (); |
|
|
2434 |
|
|
2435 return retval; |
|
|
2436 } |
|
|
2437 |
|
|
2438 octave_stream * |
|
|
2439 octave_stream_list::do_lookup (int fid) const |
|
|
2440 { |
|
|
2441 octave_stream *retval = 0; |
|
|
2442 |
|
|
2443 if (fid >= 0 && fid < curr_len) |
|
|
2444 retval = list.elem (fid); |
|
|
2445 |
|
|
2446 return retval; |
|
|
2447 } |
|
|
2448 |
|
|
2449 octave_stream * |
|
|
2450 octave_stream_list::do_lookup (const octave_value& fid) const |
|
|
2451 { |
|
|
2452 octave_stream *retval = 0; |
|
|
2453 |
|
|
2454 int i = get_file_number (fid); |
|
|
2455 |
|
|
2456 if (! error_state) |
|
|
2457 retval = do_lookup (i); |
|
|
2458 |
|
|
2459 return retval; |
|
|
2460 } |
|
|
2461 |
|
|
2462 octave_stream * |
|
|
2463 octave_stream_list::lookup (int fid) |
|
|
2464 { |
|
|
2465 octave_stream *retval = 0; |
|
|
2466 |
|
|
2467 if (instance) |
|
|
2468 retval = instance->do_lookup (fid); |
|
|
2469 |
|
|
2470 return retval; |
|
|
2471 } |
|
|
2472 |
|
|
2473 octave_stream * |
|
|
2474 octave_stream_list::lookup (const octave_value& fid) |
|
|
2475 { |
|
|
2476 octave_stream *retval = 0; |
|
|
2477 |
|
|
2478 if (instance) |
|
|
2479 retval = instance->do_lookup (fid); |
|
|
2480 |
|
|
2481 return retval; |
|
|
2482 } |
|
|
2483 |
|
|
2484 int |
|
|
2485 octave_stream_list::do_remove (int fid) |
|
|
2486 { |
|
|
2487 int retval = -1; |
|
|
2488 |
|
|
2489 // Can't remove stdin (cin), stdout (cout), or stderr (cerr). |
|
|
2490 |
|
|
2491 if (fid > 2 && fid < curr_len) |
|
|
2492 { |
|
|
2493 octave_stream *os = list.elem (fid); |
|
|
2494 |
|
|
2495 if (os) |
|
|
2496 { |
|
|
2497 delete os; |
|
|
2498 list.elem (fid) = 0; |
|
|
2499 retval = 0; |
|
|
2500 } |
|
|
2501 } |
|
|
2502 |
|
|
2503 return retval; |
|
|
2504 } |
|
|
2505 |
|
|
2506 int |
|
|
2507 octave_stream_list::do_remove (const octave_value& fid) |
|
|
2508 { |
|
|
2509 int retval = -1; |
|
|
2510 |
|
|
2511 int i = get_file_number (fid); |
|
|
2512 |
|
|
2513 if (! error_state) |
|
|
2514 retval = do_remove (i); |
|
|
2515 |
|
|
2516 return retval; |
|
|
2517 } |
|
|
2518 |
|
|
2519 int |
|
|
2520 octave_stream_list::remove (int fid) |
|
|
2521 { |
|
|
2522 int retval = -1; |
|
|
2523 |
|
|
2524 if (instance) |
|
|
2525 retval = instance->do_remove (fid); |
|
|
2526 |
|
|
2527 return retval; |
|
|
2528 } |
|
|
2529 |
|
|
2530 int |
|
|
2531 octave_stream_list::remove (const octave_value& fid) |
|
|
2532 { |
|
|
2533 int retval = -1; |
|
|
2534 |
|
|
2535 if (instance) |
|
|
2536 retval = instance->do_remove (fid); |
|
|
2537 |
|
|
2538 return retval; |
|
|
2539 } |
|
|
2540 |
|
|
2541 void |
|
|
2542 octave_stream_list::do_clear (void) |
|
|
2543 { |
|
|
2544 // Do flush stdout and stderr. |
|
|
2545 |
|
|
2546 list.elem (0) -> flush (); |
|
|
2547 list.elem (1) -> flush (); |
|
|
2548 |
|
|
2549 // But don't delete them or stdin. |
|
|
2550 |
|
|
2551 for (int i = 3; i < curr_len; i++) |
|
|
2552 { |
|
|
2553 octave_stream *os = list.elem (i); |
|
|
2554 |
|
|
2555 delete os; |
|
|
2556 |
|
|
2557 list.elem (i) = 0; |
|
|
2558 } |
|
|
2559 } |
|
|
2560 |
|
|
2561 void |
|
|
2562 octave_stream_list::clear (void) |
|
|
2563 { |
|
|
2564 if (instance) |
|
|
2565 instance->do_clear (); |
|
|
2566 } |
|
|
2567 |
|
|
2568 string_vector |
|
|
2569 octave_stream_list::do_get_info (int fid) const |
|
|
2570 { |
|
|
2571 string_vector retval; |
|
|
2572 |
|
|
2573 octave_stream *os = do_lookup (fid); |
|
|
2574 |
|
|
2575 if (os) |
|
|
2576 { |
|
|
2577 retval.resize (3); |
|
|
2578 |
|
|
2579 retval(0) = os->name (); |
|
|
2580 retval(1) = octave_stream::mode_as_string (os->mode ()); |
|
|
2581 retval(2) = octave_stream::arch_as_string (os->architecture ()); |
|
|
2582 } |
|
|
2583 else |
|
|
2584 ::error ("invalid file id"); |
|
|
2585 |
|
|
2586 return retval; |
|
|
2587 } |
|
|
2588 |
|
|
2589 string_vector |
|
|
2590 octave_stream_list::do_get_info (const octave_value& fid) const |
|
|
2591 { |
|
|
2592 string_vector retval; |
|
|
2593 |
|
|
2594 int conv_err = 0; |
|
|
2595 |
|
|
2596 int int_fid = convert_to_valid_int (fid, conv_err); |
|
|
2597 |
|
|
2598 if (! conv_err) |
|
|
2599 retval = do_get_info (int_fid); |
|
|
2600 else |
|
|
2601 ::error ("file id must be valid integer"); |
|
|
2602 |
|
|
2603 return retval; |
|
|
2604 } |
|
|
2605 |
|
|
2606 string_vector |
|
|
2607 octave_stream_list::get_info (int fid) |
|
|
2608 { |
|
|
2609 string_vector retval; |
|
|
2610 |
|
|
2611 if (instance) |
|
|
2612 retval = instance->do_get_info (fid); |
|
|
2613 |
|
|
2614 return retval; |
|
|
2615 } |
|
|
2616 |
|
|
2617 string_vector |
|
|
2618 octave_stream_list::get_info (const octave_value& fid) |
|
|
2619 { |
|
|
2620 string_vector retval; |
|
|
2621 |
|
|
2622 if (instance) |
|
|
2623 retval = instance->do_get_info (fid); |
|
|
2624 |
|
|
2625 return retval; |
|
|
2626 } |
|
|
2627 |
|
|
2628 string |
|
|
2629 octave_stream_list::do_list_open_files (void) const |
|
|
2630 { |
|
|
2631 string retval; |
|
|
2632 |
|
|
2633 // XXX FIXME XXX -- this should probably be converted to use sstream |
|
|
2634 // when that is available. |
|
|
2635 ostrstream buf; |
|
|
2636 |
|
|
2637 buf << "\n" |
|
|
2638 << " number mode arch name\n" |
|
|
2639 << " ------ ---- ---- ----\n"; |
|
|
2640 |
|
|
2641 for (int i = 0; i < curr_len; i++) |
|
|
2642 { |
|
|
2643 octave_stream *os = list.elem (i); |
|
|
2644 |
|
|
2645 if (os) |
|
|
2646 { |
|
|
2647 string mode = octave_stream::mode_as_string (os->mode ()); |
|
|
2648 string arch = octave_stream::arch_as_string (os->architecture ()); |
|
|
2649 string name = os->name (); |
|
|
2650 |
|
|
2651 buf.form (" %4d %-3s %-9s %s\n", |
|
|
2652 i, mode.c_str (), arch.c_str (), name.c_str ()); |
|
|
2653 } |
|
|
2654 } |
|
|
2655 |
|
|
2656 buf << "\n" << ends; |
|
|
2657 |
|
|
2658 char *tmp = buf.str (); |
|
|
2659 |
|
|
2660 retval = tmp; |
|
|
2661 |
|
|
2662 delete [] tmp; |
|
|
2663 |
|
|
2664 return retval; |
|
|
2665 } |
|
|
2666 |
|
|
2667 string |
|
|
2668 octave_stream_list::list_open_files (void) |
|
|
2669 { |
|
|
2670 string retval; |
|
|
2671 |
|
|
2672 if (instance) |
|
|
2673 retval = instance->do_list_open_files (); |
|
|
2674 |
|
|
2675 return retval; |
|
|
2676 } |
|
|
2677 |
|
|
2678 octave_value |
|
|
2679 octave_stream_list::do_open_file_numbers (void) const |
|
|
2680 { |
|
|
2681 Matrix retval (1, curr_len, 0.0); |
|
|
2682 |
|
|
2683 int num_open = 0; |
|
|
2684 |
|
|
2685 // Skip stdin, stdout, and stderr. |
|
|
2686 |
|
|
2687 for (int i = 3; i < curr_len; i++) |
|
|
2688 { |
|
|
2689 if (list.elem (i)) |
|
|
2690 retval (0, num_open++) = i; |
|
|
2691 } |
|
|
2692 |
|
|
2693 retval.resize ((num_open > 0), num_open); |
|
|
2694 |
|
|
2695 return retval; |
|
|
2696 } |
|
|
2697 |
|
|
2698 octave_value |
|
|
2699 octave_stream_list::open_file_numbers (void) |
|
|
2700 { |
|
|
2701 octave_value retval; |
|
|
2702 |
|
|
2703 if (instance) |
|
|
2704 retval = instance->do_open_file_numbers (); |
|
|
2705 |
|
|
2706 return retval; |
|
|
2707 } |
|
|
2708 |
|
|
2709 int |
|
|
2710 octave_stream_list::get_file_number (const octave_value& fid) const |
|
|
2711 { |
|
|
2712 int retval = -1; |
|
|
2713 |
|
|
2714 if (fid.is_string ()) |
|
|
2715 { |
|
|
2716 string nm = fid.string_value (); |
|
|
2717 |
|
|
2718 // stdin (cin), stdout (cout), and stderr (cerr) are unnamed. |
|
|
2719 |
|
|
2720 for (int i = 3; i < curr_len; i++) |
|
|
2721 { |
|
|
2722 octave_stream *os = list.elem (i); |
|
|
2723 |
|
|
2724 if (os && os->name () == nm) |
|
|
2725 { |
|
|
2726 retval = i; |
|
|
2727 break; |
|
|
2728 } |
|
|
2729 } |
|
|
2730 } |
|
|
2731 else |
|
|
2732 { |
|
|
2733 int conv_err = 0; |
|
|
2734 |
|
|
2735 int int_fid = convert_to_valid_int (fid, conv_err); |
|
|
2736 |
|
|
2737 if (conv_err) |
|
|
2738 ::error ("file id must be a string or integer value"); |
|
|
2739 else |
|
|
2740 retval = int_fid; |
|
|
2741 } |
|
|
2742 |
|
|
2743 return retval; |
|
|
2744 } |
|
|
2745 |
|
|
2746 /* |
|
|
2747 ;;; Local Variables: *** |
|
|
2748 ;;; mode: C++ *** |
|
|
2749 ;;; End: *** |
|
|
2750 */ |
