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1 /* |
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2 |
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2847
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3 Copyright (C) 1996, 1997 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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3268
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27 #include <cassert> |
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2215
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28 #include <cstring> |
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29 |
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3503
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30 #include <iomanip> |
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31 #include <strstream> |
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3559
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32 #include <fstream> |
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3535
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33 #include <string> |
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34 |
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35 #include "lo-ieee.h" |
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36 #include "lo-mappers.h" |
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37 #include "lo-utils.h" |
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38 #include "str-vec.h" |
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39 |
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40 #include "error.h" |
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3342
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41 #include "input.h" |
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2117
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42 #include "oct-stream.h" |
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2877
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43 #include "oct-obj.h" |
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2117
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44 #include "utils.h" |
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45 |
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46 // Possible values for conv_err: |
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47 // |
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48 // 1 : not a real scalar |
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2902
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49 // 2 : value is NaN |
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50 // 3 : value is not an integer |
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51 |
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52 static int |
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53 convert_to_valid_int (const octave_value& tc, int& conv_err) |
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54 { |
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55 int retval = 0; |
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56 |
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57 conv_err = 0; |
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58 |
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2902
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59 double dval = tc.double_value (); |
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60 |
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61 if (! error_state) |
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2117
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62 { |
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2902
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63 if (! xisnan (dval)) |
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2117
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64 { |
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2902
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65 int ival = NINT (dval); |
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66 |
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67 if (ival == dval) |
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68 retval = ival; |
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69 else |
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70 conv_err = 3; |
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71 } |
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72 else |
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73 conv_err = 2; |
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74 } |
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75 else |
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76 conv_err = 1; |
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77 |
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78 return retval; |
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79 } |
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80 |
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81 static int |
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82 get_size (double d, const char *warn_for) |
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83 { |
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84 int retval = -1; |
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85 |
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86 if (! xisnan (d)) |
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87 { |
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88 if (! xisinf (d)) |
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89 { |
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3268
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90 if (d >= 0.0) |
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91 retval = NINT (d); |
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92 else |
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93 ::error ("%s: negative value invalid as size specification", |
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94 warn_for); |
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95 } |
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96 else |
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97 retval = -1; |
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98 } |
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99 else |
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100 ::error ("%s: NaN is invalid as size specification", warn_for); |
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101 |
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102 return retval; |
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103 } |
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104 |
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105 static void |
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3268
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106 get_size (const Matrix& size, int& nr, int& nc, bool& one_elt_size_spec, |
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107 const char *warn_for) |
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108 { |
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109 nr = -1; |
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110 nc = -1; |
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111 |
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3268
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112 one_elt_size_spec = false; |
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113 |
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2117
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114 double dnr = -1.0; |
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115 double dnc = -1.0; |
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116 |
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2601
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117 int sz_nr = size.rows (); |
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118 int sz_nc = size.cols (); |
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119 |
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120 if (sz_nr == 1 && sz_nc == 1) |
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121 { |
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3268
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122 one_elt_size_spec = true; |
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123 |
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2601
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124 dnr = size (0, 0); |
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125 dnc = 1.0; |
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126 } |
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127 else if (sz_nr == 1 && sz_nc > 0) |
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128 { |
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2305
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129 dnr = size (0, 0); |
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130 |
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2601
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131 if (sz_nc == 2) |
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2305
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132 dnc = size (0, 1); |
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2601
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133 else if (sz_nc > 2) |
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134 ::error ("%s: invalid size specification", warn_for); |
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135 } |
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2601
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136 else if (sz_nc == 1 && sz_nr > 0) |
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137 { |
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2305
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138 dnr = size (0, 0); |
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139 |
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2601
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140 if (sz_nr == 2) |
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2305
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141 dnc = size (1, 0); |
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2601
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142 else if (sz_nr > 2) |
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143 ::error ("%s: invalid size specification", warn_for); |
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144 } |
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145 else |
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146 ::error ("%s: invalid size specification", warn_for); |
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147 |
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148 if (! error_state) |
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149 { |
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150 nr = get_size (dnr, warn_for); |
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151 |
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3268
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152 if (! error_state && dnc >= 0.0) |
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153 nc = get_size (dnc, warn_for); |
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154 } |
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155 } |
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156 |
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3523
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157 scanf_format_list::scanf_format_list (const std::string& s) |
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158 : nconv (0), curr_idx (0), list (16), buf (0) |
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159 { |
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160 int num_elts = 0; |
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161 |
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162 int n = s.length (); |
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163 |
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164 int i = 0; |
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165 |
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2215
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166 int width = 0; |
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167 bool discard = false; |
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168 char modifier = '\0'; |
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169 char type = '\0'; |
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170 |
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171 bool have_more = true; |
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172 |
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173 while (i < n) |
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174 { |
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175 have_more = true; |
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176 |
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177 if (! buf) |
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3523
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178 buf = new std::ostrstream (); |
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179 |
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180 if (s[i] == '%') |
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181 { |
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3483
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182 // Process percent-escape conversion type. |
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183 |
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2215
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184 process_conversion (s, i, n, width, discard, type, modifier, |
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185 num_elts); |
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186 have_more = (buf != 0); |
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187 } |
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3483
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188 else if (isspace (s[i])) |
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189 { |
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3483
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190 type = scanf_format_elt::whitespace_conversion; |
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191 |
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2215
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192 width = 0; |
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193 discard = false; |
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194 modifier = '\0'; |
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3483
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195 *buf << " "; |
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196 |
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197 while (++i < n && isspace (s[i])) |
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198 /* skip whitespace */; |
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199 |
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200 add_elt_to_list (width, discard, type, modifier, num_elts); |
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201 |
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202 have_more = false; |
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203 } |
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204 else |
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205 { |
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206 type = scanf_format_elt::literal_conversion; |
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207 |
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208 width = 0; |
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209 discard = false; |
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210 modifier = '\0'; |
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211 |
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212 while (i < n && ! isspace (s[i]) && s[i] != '%') |
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213 *buf << s[i++]; |
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214 |
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215 add_elt_to_list (width, discard, type, modifier, num_elts); |
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216 |
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217 have_more = false; |
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2117
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218 } |
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219 |
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220 if (nconv < 0) |
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221 { |
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222 have_more = false; |
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223 break; |
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224 } |
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225 } |
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226 |
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227 if (have_more) |
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2215
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228 add_elt_to_list (width, discard, type, modifier, num_elts); |
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229 |
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230 list.resize (num_elts); |
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231 |
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232 delete buf; |
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233 } |
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234 |
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235 scanf_format_list::~scanf_format_list (void) |
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236 { |
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237 int n = list.length (); |
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238 |
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239 for (int i = 0; i < n; i++) |
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240 { |
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3340
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241 scanf_format_elt *elt = list(i); |
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2117
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242 delete elt; |
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243 } |
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244 } |
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245 |
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246 void |
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2215
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247 scanf_format_list::add_elt_to_list (int width, bool discard, char type, |
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3483
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248 char modifier, int& num_elts, |
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3523
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249 const std::string& char_class) |
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2117
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250 { |
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251 if (buf) |
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252 { |
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3538
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253 *buf << std::ends; |
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2117
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254 |
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255 char *text = buf->str (); |
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256 |
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257 if (text) |
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258 { |
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259 if (*text) |
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260 { |
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261 scanf_format_elt *elt |
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3483
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262 = new scanf_format_elt (text, width, discard, type, |
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263 modifier, char_class); |
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2117
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264 |
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265 if (num_elts == list.length ()) |
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266 list.resize (2 * num_elts); |
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267 |
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3340
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268 list(num_elts++) = elt; |
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2117
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269 } |
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270 else |
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271 delete [] text; |
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272 } |
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273 |
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274 delete buf; |
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275 buf = 0; |
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276 } |
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277 } |
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278 |
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3535
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279 static std::string |
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3523
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280 expand_char_class (const std::string& s) |
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3483
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281 { |
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3523
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282 std::string retval; |
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3483
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283 |
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284 size_t len = s.length (); |
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285 |
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286 size_t i = 0; |
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287 |
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288 while (i < len) |
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289 { |
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290 unsigned char c = s[i++]; |
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291 |
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292 if (c == '-' && i > 1 && i < len |
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293 && (unsigned char) s[i-2] <= (unsigned char) s[i]) |
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294 { |
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295 // Add all characters from the range except the first (we |
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296 // already added it below). |
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297 |
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298 for (c = s[i-2]+1; c < s[i]; c++) |
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299 retval += c; |
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300 } |
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301 else |
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302 { |
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303 // Add the character to the class. Only add '-' if it is |
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304 // the last character in the class. |
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305 |
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306 if (c != '-' || i == len) |
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307 retval += c; |
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308 } |
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309 } |
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310 |
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311 return retval; |
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312 } |
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313 |
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2117
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314 void |
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3523
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315 scanf_format_list::process_conversion (const std::string& s, int& i, int n, |
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2215
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316 int& width, bool& discard, char& type, |
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2117
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317 char& modifier, int& num_elts) |
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318 { |
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2215
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319 width = 0; |
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2117
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320 discard = false; |
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321 modifier = '\0'; |
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322 type = '\0'; |
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323 |
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324 *buf << s[i++]; |
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325 |
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326 bool have_width = false; |
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327 |
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328 while (i < n) |
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329 { |
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330 switch (s[i]) |
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331 { |
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332 case '*': |
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333 if (discard) |
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334 nconv = -1; |
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335 else |
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336 { |
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337 discard = true; |
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338 *buf << s[i++]; |
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339 } |
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340 break; |
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341 |
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342 case '0': case '1': case '2': case '3': case '4': |
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343 case '5': case '6': case '7': case '8': case '9': |
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344 if (have_width) |
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345 nconv = -1; |
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346 else |
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347 { |
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2215
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348 char c = s[i++]; |
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349 width = width * 10 + c - '0'; |
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2117
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350 have_width = true; |
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2215
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351 *buf << c; |
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2117
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352 while (i < n && isdigit (s[i])) |
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2215
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353 { |
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354 c = s[i++]; |
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355 width = width * 10 + c - '0'; |
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356 *buf << c; |
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357 } |
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2117
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358 } |
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359 break; |
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360 |
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361 case 'h': case 'l': case 'L': |
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362 if (modifier != '\0') |
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363 nconv = -1; |
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364 else |
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2663
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365 modifier = s[i++]; |
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2117
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366 break; |
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367 |
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368 case 'd': case 'i': case 'o': case 'u': case 'x': |
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369 if (modifier == 'L') |
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370 { |
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371 nconv = -1; |
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372 break; |
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373 } |
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374 goto fini; |
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375 |
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376 case 'e': case 'f': case 'g': |
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377 if (modifier == 'h') |
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378 { |
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379 nconv = -1; |
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380 break; |
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381 } |
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2663
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382 |
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383 // No float or long double conversions, thanks. |
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384 *buf << 'l'; |
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385 |
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2117
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386 goto fini; |
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387 |
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388 case 'c': case 's': case 'p': case '%': case '[': |
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389 if (modifier != '\0') |
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390 { |
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391 nconv = -1; |
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392 break; |
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393 } |
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394 goto fini; |
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395 |
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396 fini: |
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397 { |
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2215
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398 if (finish_conversion (s, i, n, width, discard, type, |
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2117
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399 modifier, num_elts) == 0) |
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400 return; |
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401 } |
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402 break; |
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403 |
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404 default: |
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405 nconv = -1; |
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406 break; |
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407 } |
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408 |
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409 if (nconv < 0) |
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410 break; |
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411 } |
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412 |
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413 nconv = -1; |
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414 } |
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415 |
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416 int |
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3523
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417 scanf_format_list::finish_conversion (const std::string& s, int& i, int n, |
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2215
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418 int& width, bool discard, char& type, |
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2117
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419 char modifier, int& num_elts) |
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420 { |
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421 int retval = 0; |
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422 |
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3523
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423 std::string char_class; |
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3483
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424 |
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2117
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425 if (s[i] == '%') |
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426 *buf << s[i++]; |
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427 else |
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428 { |
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3483
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429 int beg_idx = -1; |
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430 int end_idx = -1; |
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431 |
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2117
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432 type = s[i]; |
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433 |
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434 if (s[i] == '[') |
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435 { |
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436 *buf << s[i++]; |
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437 |
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438 if (i < n) |
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439 { |
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3483
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440 beg_idx = i; |
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441 |
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2117
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442 if (s[i] == '^') |
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443 { |
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444 type = '^'; |
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445 *buf << s[i++]; |
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3483
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446 |
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447 if (i < n) |
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448 { |
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449 beg_idx = i; |
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450 |
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451 if (s[i] == ']') |
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452 *buf << s[i++]; |
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453 } |
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2117
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454 } |
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455 else if (s[i] == ']') |
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456 *buf << s[i++]; |
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457 } |
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458 |
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459 while (i < n && s[i] != ']') |
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460 *buf << s[i++]; |
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461 |
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462 if (i < n && s[i] == ']') |
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3483
|
463 { |
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464 end_idx = i-1; |
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465 *buf << s[i++]; |
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466 } |
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2117
|
467 |
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468 if (s[i-1] != ']') |
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469 retval = nconv = -1; |
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470 } |
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471 else |
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2215
|
472 *buf << s[i++]; |
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2117
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473 |
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474 nconv++; |
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475 |
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476 if (nconv > 0) |
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3483
|
477 { |
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|
478 if (beg_idx >= 0 && end_idx >= 0) |
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|
479 char_class = expand_char_class (s.substr (beg_idx, |
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|
480 end_idx - beg_idx +1)); |
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|
481 |
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|
482 add_elt_to_list (width, discard, type, modifier, num_elts, |
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|
483 char_class); |
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|
484 } |
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2117
|
485 } |
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486 |
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|
487 return retval; |
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|
488 } |
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489 |
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|
490 void |
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|
491 scanf_format_list::printme (void) const |
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|
492 { |
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|
493 int n = list.length (); |
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|
494 |
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|
495 for (int i = 0; i < n; i++) |
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|
496 { |
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3340
|
497 scanf_format_elt *elt = list(i); |
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2117
|
498 |
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3531
|
499 std::cerr |
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|
500 << "width: " << elt->width << "\n" |
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|
501 << "discard: " << elt->discard << "\n" |
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|
502 << "type: "; |
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3483
|
503 |
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|
504 if (elt->type == scanf_format_elt::literal_conversion) |
|
3531
|
505 std::cerr << "literal text\n"; |
|
3483
|
506 else if (elt->type == scanf_format_elt::whitespace_conversion) |
|
3531
|
507 std::cerr << "whitespace\n"; |
|
3483
|
508 else |
|
3531
|
509 std::cerr << elt->type << "\n"; |
|
|
510 |
|
|
511 std::cerr |
|
|
512 << "modifier: " << elt->modifier << "\n" |
|
|
513 << "char_class: `" << undo_string_escapes (elt->char_class) << "'\n" |
|
|
514 << "text: `" << undo_string_escapes (elt->text) << "'\n\n"; |
|
2117
|
515 } |
|
|
516 } |
|
|
517 |
|
|
518 bool |
|
|
519 scanf_format_list::all_character_conversions (void) |
|
|
520 { |
|
|
521 int n = list.length (); |
|
|
522 |
|
|
523 if (n > 0) |
|
|
524 { |
|
|
525 for (int i = 0; i < n; i++) |
|
|
526 { |
|
3340
|
527 scanf_format_elt *elt = list(i); |
|
2117
|
528 |
|
|
529 switch (elt->type) |
|
|
530 { |
|
3483
|
531 case 'c': case 's': case '%': case '[': case '^': |
|
|
532 case scanf_format_elt::literal_conversion: |
|
|
533 case scanf_format_elt::whitespace_conversion: |
|
2117
|
534 break; |
|
|
535 |
|
|
536 default: |
|
|
537 return false; |
|
|
538 break; |
|
|
539 } |
|
|
540 } |
|
|
541 |
|
|
542 return true; |
|
|
543 } |
|
|
544 else |
|
|
545 return false; |
|
|
546 } |
|
|
547 |
|
|
548 bool |
|
|
549 scanf_format_list::all_numeric_conversions (void) |
|
|
550 { |
|
|
551 int n = list.length (); |
|
|
552 |
|
|
553 if (n > 0) |
|
|
554 { |
|
|
555 for (int i = 0; i < n; i++) |
|
|
556 { |
|
3340
|
557 scanf_format_elt *elt = list(i); |
|
2117
|
558 |
|
|
559 switch (elt->type) |
|
|
560 { |
|
|
561 case 'd': case 'i': case 'o': case 'u': case 'x': |
|
|
562 case 'e': case 'f': case 'g': |
|
|
563 break; |
|
|
564 |
|
|
565 default: |
|
|
566 return false; |
|
|
567 break; |
|
|
568 } |
|
|
569 } |
|
|
570 |
|
|
571 return true; |
|
|
572 } |
|
|
573 else |
|
|
574 return false; |
|
|
575 } |
|
|
576 |
|
|
577 // Ugh again. |
|
|
578 |
|
3523
|
579 printf_format_list::printf_format_list (const std::string& s) |
|
2117
|
580 : nconv (0), curr_idx (0), list (16), buf (0) |
|
|
581 { |
|
|
582 int num_elts = 0; |
|
|
583 |
|
|
584 int n = s.length (); |
|
|
585 |
|
|
586 int i = 0; |
|
|
587 |
|
|
588 int args = 0; |
|
|
589 char modifier = '\0'; |
|
|
590 char type = '\0'; |
|
|
591 |
|
|
592 bool have_more = true; |
|
|
593 |
|
|
594 while (i < n) |
|
|
595 { |
|
|
596 have_more = true; |
|
|
597 |
|
|
598 if (! buf) |
|
3523
|
599 buf = new std::ostrstream (); |
|
2117
|
600 |
|
|
601 switch (s[i]) |
|
|
602 { |
|
|
603 case '%': |
|
|
604 process_conversion (s, i, n, args, type, modifier, num_elts); |
|
|
605 have_more = (buf != 0); |
|
|
606 break; |
|
|
607 |
|
|
608 default: |
|
|
609 args = 0; |
|
|
610 modifier = '\0'; |
|
|
611 type = '\0'; |
|
|
612 *buf << s[i++]; |
|
|
613 break; |
|
|
614 } |
|
|
615 |
|
|
616 if (nconv < 0) |
|
|
617 { |
|
|
618 have_more = false; |
|
|
619 break; |
|
|
620 } |
|
|
621 } |
|
|
622 |
|
|
623 if (have_more) |
|
|
624 add_elt_to_list (args, type, modifier, num_elts); |
|
|
625 |
|
|
626 list.resize (num_elts); |
|
|
627 |
|
|
628 delete buf; |
|
|
629 } |
|
|
630 |
|
|
631 printf_format_list::~printf_format_list (void) |
|
|
632 { |
|
|
633 int n = list.length (); |
|
|
634 |
|
|
635 for (int i = 0; i < n; i++) |
|
|
636 { |
|
3340
|
637 printf_format_elt *elt = list(i); |
|
2117
|
638 delete elt; |
|
|
639 } |
|
|
640 } |
|
|
641 |
|
|
642 void |
|
|
643 printf_format_list::add_elt_to_list (int args, char type, char modifier, |
|
|
644 int& num_elts) |
|
|
645 { |
|
|
646 if (buf) |
|
|
647 { |
|
3538
|
648 *buf << std::ends; |
|
2117
|
649 |
|
|
650 char *text = buf->str (); |
|
|
651 |
|
|
652 if (text) |
|
|
653 { |
|
|
654 if (*text) |
|
|
655 { |
|
|
656 printf_format_elt *elt |
|
|
657 = new printf_format_elt (text, args, type, modifier); |
|
|
658 |
|
|
659 if (num_elts == list.length ()) |
|
|
660 list.resize (2 * num_elts); |
|
|
661 |
|
3340
|
662 list(num_elts++) = elt; |
|
2117
|
663 } |
|
|
664 else |
|
|
665 delete [] text; |
|
|
666 } |
|
|
667 |
|
|
668 delete buf; |
|
|
669 buf = 0; |
|
|
670 } |
|
|
671 } |
|
|
672 |
|
|
673 void |
|
3523
|
674 printf_format_list::process_conversion (const std::string& s, int& i, int n, |
|
2117
|
675 int& args, char& modifier, |
|
|
676 char& type, int& num_elts) |
|
|
677 { |
|
|
678 args = 0; |
|
|
679 modifier = '\0'; |
|
|
680 type = '\0'; |
|
|
681 |
|
|
682 *buf << s[i++]; |
|
|
683 |
|
|
684 bool next = false; |
|
|
685 |
|
|
686 while (i < n) |
|
|
687 { |
|
|
688 switch (s[i]) |
|
|
689 { |
|
|
690 case '-': case '+': case ' ': case '0': case '#': |
|
|
691 *buf << s[i++]; |
|
|
692 break; |
|
|
693 |
|
|
694 default: |
|
|
695 next = true; |
|
|
696 break; |
|
|
697 } |
|
|
698 |
|
|
699 if (next) |
|
|
700 break; |
|
|
701 } |
|
|
702 |
|
|
703 if (i < n) |
|
|
704 { |
|
|
705 if (s[i] == '*') |
|
|
706 { |
|
|
707 args++; |
|
|
708 *buf << s[i++]; |
|
|
709 } |
|
|
710 else |
|
|
711 { |
|
|
712 while (i < n && isdigit (s[i])) |
|
|
713 *buf << s[i++]; |
|
|
714 } |
|
|
715 } |
|
|
716 |
|
|
717 if (i < n && s[i] == '.') |
|
|
718 { |
|
|
719 *buf << s[i++]; |
|
|
720 |
|
|
721 if (i < n) |
|
|
722 { |
|
|
723 if (s[i] == '*') |
|
|
724 { |
|
|
725 args++; |
|
|
726 *buf << s[i++]; |
|
|
727 } |
|
|
728 else |
|
|
729 { |
|
|
730 while (i < n && isdigit (s[i])) |
|
|
731 *buf << s[i++]; |
|
|
732 } |
|
|
733 } |
|
|
734 } |
|
|
735 |
|
|
736 if (i < n) |
|
|
737 { |
|
|
738 switch (s[i]) |
|
|
739 { |
|
|
740 case 'h': case 'l': case 'L': |
|
|
741 modifier = s[i]; |
|
|
742 *buf << s[i++]; |
|
|
743 break; |
|
|
744 |
|
|
745 default: |
|
|
746 break; |
|
|
747 } |
|
|
748 } |
|
|
749 |
|
|
750 if (i < n) |
|
|
751 finish_conversion (s, i, args, modifier, type, num_elts); |
|
|
752 else |
|
|
753 nconv = -1; |
|
|
754 } |
|
|
755 |
|
|
756 void |
|
3523
|
757 printf_format_list::finish_conversion (const std::string& s, int& i, |
|
2117
|
758 int args, char modifier, |
|
|
759 char& type, int& num_elts) |
|
|
760 |
|
|
761 { |
|
|
762 switch (s[i]) |
|
|
763 { |
|
|
764 case 'd': case 'i': case 'o': case 'x': case 'X': |
|
|
765 case 'u': case 'c': |
|
|
766 if (modifier == 'L') |
|
|
767 { |
|
|
768 nconv = -1; |
|
|
769 break; |
|
|
770 } |
|
|
771 goto fini; |
|
|
772 |
|
|
773 case 'f': case 'e': case 'E': case 'g': case 'G': |
|
|
774 if (modifier == 'h' || modifier == 'l') |
|
|
775 { |
|
|
776 nconv = -1; |
|
|
777 break; |
|
|
778 } |
|
|
779 goto fini; |
|
|
780 |
|
|
781 case 's': case 'p': case '%': |
|
|
782 if (modifier != '\0') |
|
|
783 { |
|
|
784 nconv = -1; |
|
|
785 break; |
|
|
786 } |
|
|
787 goto fini; |
|
|
788 |
|
|
789 fini: |
|
|
790 |
|
|
791 if (s[i] == '%' && args == 0) |
|
|
792 *buf << s[i++]; |
|
|
793 else |
|
|
794 { |
|
|
795 if (s[i] != '%') |
|
|
796 args++; |
|
|
797 |
|
|
798 type = s[i]; |
|
|
799 |
|
|
800 *buf << s[i++]; |
|
|
801 |
|
|
802 add_elt_to_list (args, type, modifier, num_elts); |
|
|
803 |
|
|
804 nconv++; |
|
|
805 } |
|
|
806 break; |
|
|
807 |
|
|
808 default: |
|
|
809 nconv = -1; |
|
|
810 break; |
|
|
811 } |
|
|
812 } |
|
|
813 |
|
|
814 void |
|
|
815 printf_format_list::printme (void) const |
|
|
816 { |
|
|
817 int n = list.length (); |
|
|
818 |
|
|
819 for (int i = 0; i < n; i++) |
|
|
820 { |
|
3340
|
821 printf_format_elt *elt = list(i); |
|
2117
|
822 |
|
3531
|
823 std::cerr << elt->args<< "\t" |
|
|
824 << elt->type << "\t" |
|
|
825 << elt->modifier << "\t" |
|
|
826 << undo_string_escapes (elt->text) << "\n"; |
|
2117
|
827 } |
|
|
828 } |
|
|
829 |
|
3145
|
830 int |
|
3148
|
831 octave_base_stream::file_number (void) |
|
3145
|
832 { |
|
|
833 // Kluge alert! |
|
|
834 |
|
|
835 if (name () == "stdin") |
|
|
836 return 0; |
|
|
837 |
|
|
838 if (name () == "stdout") |
|
|
839 return 1; |
|
|
840 |
|
|
841 if (name () == "stderr") |
|
|
842 return 2; |
|
|
843 |
|
|
844 int retval = -1; |
|
|
845 |
|
3523
|
846 std::istream *is = input_stream (); |
|
|
847 std::ostream *os = output_stream (); |
|
3145
|
848 |
|
3553
|
849 int i_fid = is ? ((std::filebuf *) (is->rdbuf ()))->fd () : -1; |
|
|
850 int o_fid = os ? ((std::filebuf *) (os->rdbuf ()))->fd () : -1; |
|
3145
|
851 |
|
|
852 if (i_fid >= 0) |
|
|
853 { |
|
|
854 if (o_fid >= 0) |
|
|
855 retval = (i_fid == o_fid) ? i_fid : -1; |
|
|
856 else |
|
|
857 retval = i_fid; |
|
|
858 } |
|
|
859 else if (o_fid >= 0) |
|
|
860 retval = o_fid; |
|
|
861 |
|
|
862 return retval; |
|
|
863 } |
|
|
864 |
|
2117
|
865 void |
|
3523
|
866 octave_base_stream::error (const std::string& msg) |
|
2117
|
867 { |
|
|
868 fail = true; |
|
|
869 errmsg = msg; |
|
|
870 } |
|
|
871 |
|
|
872 void |
|
|
873 octave_base_stream::clear (void) |
|
|
874 { |
|
|
875 fail = false; |
|
|
876 errmsg = ""; |
|
|
877 } |
|
|
878 |
|
|
879 // Functions that are defined for all input streams (input streams |
|
|
880 // are those that define is). |
|
|
881 |
|
3536
|
882 std::string |
|
2117
|
883 octave_base_stream::do_gets (int max_len, bool& err, |
|
|
884 bool strip_newline, const char *fcn) |
|
|
885 { |
|
3523
|
886 std::string retval; |
|
2117
|
887 |
|
|
888 err = false; |
|
|
889 |
|
3523
|
890 std::istream *isp = input_stream (); |
|
2117
|
891 |
|
|
892 if (isp) |
|
|
893 { |
|
3523
|
894 std::istream& is = *isp; |
|
2117
|
895 |
|
|
896 // XXX FIXME XXX -- this should probably be converted to use |
|
|
897 // sstream when that is available. |
|
3523
|
898 std::ostrstream buf; |
|
2117
|
899 |
|
|
900 int c = 0; |
|
3553
|
901 int char_count = 0; |
|
2117
|
902 int newline_stripped = 0; |
|
|
903 |
|
|
904 while (is && (c = is.get ()) != EOF) |
|
|
905 { |
|
3553
|
906 char_count++; |
|
2117
|
907 |
|
|
908 if (c == '\n') |
|
|
909 { |
|
|
910 if (! strip_newline) |
|
|
911 buf << (char) c; |
|
|
912 else |
|
|
913 newline_stripped = 1; |
|
|
914 |
|
|
915 break; |
|
|
916 } |
|
|
917 else |
|
|
918 buf << (char) c; |
|
|
919 |
|
3553
|
920 if (max_len > 0 && char_count == max_len) |
|
2117
|
921 break; |
|
|
922 } |
|
|
923 |
|
|
924 if (is.fail ()) |
|
|
925 { |
|
|
926 err = true; |
|
3523
|
927 std::string msg = fcn; |
|
2117
|
928 msg.append (": read error"); |
|
|
929 error (msg); |
|
|
930 } |
|
3553
|
931 else if (char_count == 0 && is.eof ()) |
|
2117
|
932 { |
|
|
933 err = true; |
|
3523
|
934 std::string msg = fcn; |
|
2117
|
935 msg.append (": at end of file"); |
|
|
936 error (msg); |
|
|
937 } |
|
|
938 else |
|
|
939 { |
|
3538
|
940 buf << std::ends; |
|
2117
|
941 char *tmp = buf.str (); |
|
|
942 retval = tmp; |
|
|
943 delete [] tmp; |
|
|
944 } |
|
|
945 } |
|
|
946 else |
|
|
947 { |
|
|
948 err = true; |
|
|
949 invalid_operation (fcn, "reading"); |
|
|
950 } |
|
|
951 |
|
|
952 return retval; |
|
|
953 } |
|
|
954 |
|
3536
|
955 std::string |
|
2117
|
956 octave_base_stream::getl (int max_len, bool& err) |
|
|
957 { |
|
|
958 return do_gets (max_len, err, true, "fgetl"); |
|
|
959 } |
|
|
960 |
|
3536
|
961 std::string |
|
2117
|
962 octave_base_stream::gets (int max_len, bool& err) |
|
|
963 { |
|
|
964 return do_gets (max_len, err, false, "fgets"); |
|
|
965 } |
|
|
966 |
|
|
967 octave_value |
|
2317
|
968 octave_base_stream::read (const Matrix& size, |
|
|
969 oct_data_conv::data_type dt, int skip, |
|
3553
|
970 oct_mach_info::float_format ffmt, |
|
|
971 int& char_count) |
|
2117
|
972 { |
|
2317
|
973 Matrix retval; |
|
|
974 |
|
3553
|
975 char_count = 0; |
|
2117
|
976 |
|
3523
|
977 std::istream *isp = input_stream (); |
|
2117
|
978 |
|
|
979 if (isp) |
|
|
980 { |
|
3523
|
981 std::istream& is = *isp; |
|
2117
|
982 |
|
|
983 int nr = -1; |
|
|
984 int nc = -1; |
|
|
985 |
|
3268
|
986 bool ignore; |
|
|
987 |
|
|
988 get_size (size, nr, nc, ignore, "fread"); |
|
2117
|
989 |
|
|
990 if (! error_state) |
|
2317
|
991 { |
|
3553
|
992 if (ffmt == oct_mach_info::unknown) |
|
|
993 ffmt = float_format (); |
|
|
994 |
|
|
995 int tmp = retval.read (is, nr, nc, dt, skip, ffmt); |
|
2317
|
996 |
|
|
997 if (tmp < 0) |
|
|
998 error ("fread: read error"); |
|
|
999 else |
|
3553
|
1000 char_count = tmp; |
|
2317
|
1001 } |
|
2117
|
1002 } |
|
|
1003 else |
|
|
1004 invalid_operation ("fread", "reading"); |
|
|
1005 |
|
|
1006 return retval; |
|
|
1007 } |
|
|
1008 |
|
2572
|
1009 template <class T> |
|
|
1010 void |
|
3523
|
1011 do_scanf_conv (std::istream& is, const char *fmt, T valptr, Matrix& mval, |
|
3559
|
1012 double *data, int& idx, int& conversion_count, int nr, |
|
3268
|
1013 int max_size, bool discard) |
|
2572
|
1014 { |
|
|
1015 is.scan (fmt, valptr); |
|
|
1016 |
|
|
1017 if (is) |
|
|
1018 { |
|
|
1019 if (idx == max_size && ! discard) |
|
|
1020 { |
|
|
1021 max_size *= 2; |
|
|
1022 |
|
|
1023 if (nr > 0) |
|
|
1024 mval.resize (nr, max_size / nr, 0.0); |
|
|
1025 else |
|
|
1026 mval.resize (max_size, 1, 0.0); |
|
|
1027 |
|
|
1028 data = mval.fortran_vec (); |
|
|
1029 } |
|
|
1030 |
|
|
1031 if (! discard) |
|
3268
|
1032 { |
|
3559
|
1033 conversion_count++; |
|
3268
|
1034 data[idx++] = *(valptr); |
|
|
1035 } |
|
2572
|
1036 } |
|
|
1037 } |
|
|
1038 |
|
|
1039 template void |
|
3523
|
1040 do_scanf_conv (std::istream&, const char*, int*, Matrix&, double*, int&, |
|
3268
|
1041 int&, int, int, bool); |
|
2572
|
1042 |
|
3233
|
1043 template void |
|
3523
|
1044 do_scanf_conv (std::istream&, const char*, long int*, Matrix&, double*, int&, |
|
3268
|
1045 int&, int, int, bool); |
|
3233
|
1046 |
|
|
1047 template void |
|
3523
|
1048 do_scanf_conv (std::istream&, const char*, short int*, Matrix&, double*, int&, |
|
3268
|
1049 int&, int, int, bool); |
|
3233
|
1050 |
|
2600
|
1051 #if 0 |
|
2572
|
1052 template void |
|
3523
|
1053 do_scanf_conv (std::istream&, const char*, float*, Matrix&, double*, int&, |
|
3268
|
1054 int&, int, int, bool); |
|
2600
|
1055 #endif |
|
2572
|
1056 |
|
|
1057 template void |
|
3523
|
1058 do_scanf_conv (std::istream&, const char*, double*, Matrix&, double*, int&, |
|
3268
|
1059 int&, int, int, bool); |
|
2572
|
1060 |
|
3483
|
1061 #define DO_WHITESPACE_CONVERSION() \ |
|
|
1062 do \ |
|
|
1063 { \ |
|
|
1064 int c = EOF; \ |
|
|
1065 \ |
|
|
1066 while (is && (c = is.get ()) != EOF && isspace (c)) \ |
|
|
1067 /* skip whitespace */; \ |
|
|
1068 \ |
|
|
1069 if (c != EOF) \ |
|
|
1070 is.putback (c); \ |
|
|
1071 } \ |
|
|
1072 while (0) |
|
|
1073 |
|
|
1074 #define DO_LITERAL_CONVERSION() \ |
|
|
1075 do \ |
|
|
1076 { \ |
|
|
1077 int c = EOF; \ |
|
|
1078 \ |
|
|
1079 int n = strlen (fmt); \ |
|
|
1080 int i = 0; \ |
|
|
1081 \ |
|
|
1082 while (i < n && is && (c = is.get ()) != EOF) \ |
|
|
1083 { \ |
|
|
1084 if (c == fmt[i]) \ |
|
|
1085 { \ |
|
|
1086 i++; \ |
|
|
1087 continue; \ |
|
|
1088 } \ |
|
|
1089 else \ |
|
|
1090 { \ |
|
|
1091 is.putback (c); \ |
|
|
1092 break; \ |
|
|
1093 } \ |
|
|
1094 } \ |
|
|
1095 \ |
|
|
1096 if (i != n) \ |
|
3538
|
1097 is.setstate (std::ios::failbit); \ |
|
3483
|
1098 } \ |
|
|
1099 while (0) |
|
|
1100 |
|
|
1101 #define BEGIN_C_CONVERSION() \ |
|
3538
|
1102 is.unsetf (std::ios::skipws); \ |
|
3483
|
1103 \ |
|
|
1104 int width = elt->width ? elt->width : 1; \ |
|
|
1105 \ |
|
|
1106 char *tmp = new char[width + 1]; \ |
|
|
1107 \ |
|
|
1108 int c = EOF; \ |
|
|
1109 int n = 0; \ |
|
|
1110 \ |
|
|
1111 while (is && n < width && (c = is.get ()) != EOF) \ |
|
|
1112 tmp[n++] = (char) c; \ |
|
|
1113 \ |
|
|
1114 tmp[n] = '\0' |
|
|
1115 |
|
|
1116 // For a `%s' format, skip initial whitespace and then read until the |
|
|
1117 // next whitespace character. |
|
|
1118 #define BEGIN_S_CONVERSION() \ |
|
|
1119 int width = elt->width; \ |
|
|
1120 \ |
|
|
1121 char *tmp = 0; \ |
|
|
1122 \ |
|
|
1123 do \ |
|
|
1124 { \ |
|
|
1125 if (width) \ |
|
|
1126 { \ |
|
|
1127 tmp = new char [width+1]; \ |
|
|
1128 \ |
|
|
1129 is.scan (fmt, tmp); \ |
|
|
1130 \ |
|
|
1131 tmp[width] = '\0'; \ |
|
|
1132 } \ |
|
|
1133 else \ |
|
|
1134 { \ |
|
3548
|
1135 std::ostrstream buf; \ |
|
3483
|
1136 \ |
|
|
1137 int c = EOF; \ |
|
|
1138 \ |
|
|
1139 while (is && (c = is.get ()) != EOF && isspace (c)) \ |
|
|
1140 /* skip leading whitespace */; \ |
|
|
1141 \ |
|
|
1142 if (is && c != EOF) \ |
|
|
1143 buf << (char) c; \ |
|
|
1144 \ |
|
|
1145 while (is && (c = is.get ()) != EOF && ! isspace (c)) \ |
|
|
1146 buf << (char) c; \ |
|
|
1147 \ |
|
|
1148 if (isspace (c)) \ |
|
|
1149 is.putback (c); \ |
|
|
1150 \ |
|
3538
|
1151 buf << std::ends; \ |
|
3483
|
1152 \ |
|
|
1153 tmp = buf.str (); \ |
|
|
1154 } \ |
|
|
1155 } \ |
|
|
1156 while (0) |
|
|
1157 |
|
|
1158 // This format must match a nonempty sequence of characters. |
|
|
1159 #define BEGIN_CHAR_CLASS_CONVERSION() \ |
|
|
1160 int width = elt->width; \ |
|
|
1161 \ |
|
|
1162 char *tmp = 0; \ |
|
|
1163 \ |
|
|
1164 do \ |
|
|
1165 { \ |
|
|
1166 if (width) \ |
|
|
1167 { \ |
|
|
1168 tmp = new char[width+1]; \ |
|
|
1169 \ |
|
|
1170 is.scan (fmt, tmp); \ |
|
|
1171 \ |
|
|
1172 tmp[width] = '\0'; \ |
|
|
1173 } \ |
|
|
1174 else \ |
|
|
1175 { \ |
|
3548
|
1176 std::ostrstream buf; \ |
|
3483
|
1177 \ |
|
3523
|
1178 std::string char_class = elt->char_class; \ |
|
3483
|
1179 \ |
|
|
1180 int c = EOF; \ |
|
|
1181 \ |
|
|
1182 if (elt->type == '[') \ |
|
|
1183 { \ |
|
|
1184 while (is && (c = is.get ()) != EOF \ |
|
|
1185 && char_class.find (c) != NPOS) \ |
|
|
1186 buf << (char) c; \ |
|
|
1187 } \ |
|
|
1188 else \ |
|
|
1189 { \ |
|
|
1190 while (is && (c = is.get ()) != EOF \ |
|
|
1191 && char_class.find (c) == NPOS) \ |
|
|
1192 buf << (char) c; \ |
|
|
1193 } \ |
|
|
1194 \ |
|
|
1195 if (c != EOF) \ |
|
|
1196 is.putback (c); \ |
|
|
1197 \ |
|
3538
|
1198 buf << std::ends; \ |
|
3483
|
1199 \ |
|
|
1200 tmp = buf.str (); \ |
|
|
1201 \ |
|
|
1202 if (strlen (tmp) == 0) \ |
|
3538
|
1203 is.setstate (std::ios::failbit); \ |
|
3483
|
1204 } \ |
|
|
1205 } \ |
|
|
1206 while (0) |
|
|
1207 |
|
3410
|
1208 #define FINISH_CHARACTER_CONVERSION() \ |
|
|
1209 do \ |
|
|
1210 { \ |
|
|
1211 width = strlen (tmp); \ |
|
|
1212 \ |
|
|
1213 if (is) \ |
|
|
1214 { \ |
|
|
1215 int i = 0; \ |
|
|
1216 \ |
|
|
1217 if (! discard) \ |
|
|
1218 { \ |
|
|
1219 conversion_count++; \ |
|
|
1220 \ |
|
|
1221 while (i < width && tmp[i] != '\0') \ |
|
|
1222 { \ |
|
|
1223 if (data_index == max_size) \ |
|
|
1224 { \ |
|
|
1225 max_size *= 2; \ |
|
|
1226 \ |
|
|
1227 if (nr > 0) \ |
|
|
1228 mval.resize (nr, max_size / nr, 0.0); \ |
|
|
1229 else \ |
|
|
1230 { \ |
|
|
1231 if (all_char_conv && one_elt_size_spec) \ |
|
|
1232 mval.resize (1, max_size, 0.0); \ |
|
|
1233 else \ |
|
|
1234 mval.resize (max_size, 1, 0.0); \ |
|
|
1235 } \ |
|
|
1236 \ |
|
|
1237 data = mval.fortran_vec (); \ |
|
|
1238 } \ |
|
|
1239 \ |
|
|
1240 data[data_index++] = tmp[i++]; \ |
|
|
1241 } \ |
|
|
1242 } \ |
|
|
1243 } \ |
|
|
1244 \ |
|
|
1245 delete [] tmp; \ |
|
|
1246 } \ |
|
|
1247 while (0) |
|
2117
|
1248 |
|
|
1249 octave_value |
|
|
1250 octave_base_stream::do_scanf (scanf_format_list& fmt_list, |
|
3268
|
1251 int nr, int nc, bool one_elt_size_spec, |
|
|
1252 int& conversion_count) |
|
2117
|
1253 { |
|
3268
|
1254 conversion_count = 0; |
|
|
1255 |
|
|
1256 int data_index = 0; |
|
2121
|
1257 |
|
2117
|
1258 octave_value retval = Matrix (); |
|
|
1259 |
|
3268
|
1260 if (nr == 0 || nc == 0) |
|
|
1261 { |
|
|
1262 if (one_elt_size_spec) |
|
|
1263 nc = 0; |
|
|
1264 |
|
|
1265 return Matrix (nr, nc, 0.0); |
|
|
1266 } |
|
|
1267 |
|
3523
|
1268 std::istream *isp = input_stream (); |
|
2117
|
1269 |
|
|
1270 bool all_char_conv = fmt_list.all_character_conversions (); |
|
|
1271 |
|
|
1272 Matrix mval; |
|
|
1273 double *data = 0; |
|
|
1274 int max_size = 0; |
|
3268
|
1275 int max_conv = 0; |
|
2117
|
1276 |
|
|
1277 int final_nr = 0; |
|
|
1278 int final_nc = 0; |
|
|
1279 |
|
3268
|
1280 if (all_char_conv) |
|
|
1281 { |
|
|
1282 if (one_elt_size_spec) |
|
|
1283 { |
|
3410
|
1284 max_size = 512; |
|
|
1285 mval.resize (1, max_size, 0.0); |
|
3268
|
1286 data = mval.fortran_vec (); |
|
3410
|
1287 |
|
3268
|
1288 if (nr > 0) |
|
|
1289 max_conv = nr; |
|
|
1290 } |
|
|
1291 else if (nr > 0 && nc > 0) |
|
|
1292 { |
|
3410
|
1293 mval.resize (nr, nc, 0.0); |
|
3268
|
1294 data = mval.fortran_vec (); |
|
3410
|
1295 max_size = max_conv = nr * nc; |
|
3268
|
1296 } |
|
|
1297 } |
|
|
1298 else if (nr > 0) |
|
2117
|
1299 { |
|
|
1300 if (nc > 0) |
|
|
1301 { |
|
|
1302 mval.resize (nr, nc, 0.0); |
|
|
1303 data = mval.fortran_vec (); |
|
|
1304 max_size = nr * nc; |
|
3268
|
1305 |
|
|
1306 max_conv = max_size; |
|
2117
|
1307 } |
|
|
1308 else |
|
|
1309 { |
|
|
1310 mval.resize (nr, 32, 0.0); |
|
|
1311 data = mval.fortran_vec (); |
|
2121
|
1312 max_size = nr * 32; |
|
2117
|
1313 } |
|
|
1314 } |
|
|
1315 else |
|
|
1316 { |
|
|
1317 mval.resize (32, 1, 0.0); |
|
|
1318 data = mval.fortran_vec (); |
|
|
1319 max_size = 32; |
|
|
1320 } |
|
|
1321 |
|
|
1322 if (isp) |
|
|
1323 { |
|
3523
|
1324 std::istream& is = *isp; |
|
2117
|
1325 |
|
|
1326 const scanf_format_elt *elt = fmt_list.first (); |
|
|
1327 |
|
3538
|
1328 std::ios::fmtflags flags = is.flags (); |
|
2213
|
1329 |
|
2117
|
1330 for (;;) |
|
|
1331 { |
|
|
1332 if (elt) |
|
|
1333 { |
|
3268
|
1334 if (max_conv > 0 && conversion_count == max_conv) |
|
|
1335 { |
|
|
1336 if (all_char_conv && one_elt_size_spec) |
|
|
1337 { |
|
|
1338 final_nr = 1; |
|
|
1339 final_nc = data_index; |
|
|
1340 } |
|
|
1341 else |
|
|
1342 { |
|
|
1343 final_nr = nr; |
|
|
1344 final_nc = (data_index - 1) / nr + 1; |
|
|
1345 } |
|
|
1346 |
|
|
1347 break; |
|
|
1348 } |
|
|
1349 else if (data_index == max_size) |
|
2117
|
1350 { |
|
3410
|
1351 max_size *= 2; |
|
|
1352 |
|
2687
|
1353 if (nr > 0) |
|
3410
|
1354 mval.resize (nr, max_size / nr, 0.0); |
|
2687
|
1355 else |
|
|
1356 { |
|
3410
|
1357 if (all_char_conv && one_elt_size_spec) |
|
|
1358 mval.resize (1, max_size, 0.0); |
|
|
1359 else |
|
|
1360 mval.resize (max_size, 1, 0.0); |
|
2687
|
1361 } |
|
3410
|
1362 |
|
|
1363 data = mval.fortran_vec (); |
|
2117
|
1364 } |
|
|
1365 |
|
|
1366 const char *fmt = elt->text; |
|
|
1367 |
|
|
1368 bool discard = elt->discard; |
|
|
1369 |
|
|
1370 switch (elt->type) |
|
|
1371 { |
|
3483
|
1372 case scanf_format_elt::whitespace_conversion: |
|
|
1373 DO_WHITESPACE_CONVERSION (); |
|
|
1374 break; |
|
|
1375 |
|
|
1376 case scanf_format_elt::literal_conversion: |
|
|
1377 DO_LITERAL_CONVERSION (); |
|
|
1378 break; |
|
|
1379 |
|
2117
|
1380 case '%': |
|
|
1381 { |
|
|
1382 int dummy; |
|
|
1383 |
|
2215
|
1384 is.scan (fmt, &dummy); |
|
2117
|
1385 } |
|
3483
|
1386 break; |
|
2117
|
1387 |
|
|
1388 case 'd': case 'i': case 'o': case 'u': case 'x': |
|
|
1389 { |
|
3233
|
1390 switch (elt->modifier) |
|
|
1391 { |
|
|
1392 case 'h': |
|
|
1393 { |
|
|
1394 short int tmp; |
|
3268
|
1395 do_scanf_conv (is, fmt, &tmp, mval, data, |
|
|
1396 data_index, conversion_count, |
|
3233
|
1397 nr, max_size, discard); |
|
|
1398 } |
|
3483
|
1399 break; |
|
3233
|
1400 |
|
|
1401 case 'l': |
|
|
1402 { |
|
|
1403 long int tmp; |
|
3268
|
1404 do_scanf_conv (is, fmt, &tmp, mval, data, |
|
|
1405 data_index, conversion_count, |
|
3233
|
1406 nr, max_size, discard); |
|
|
1407 } |
|
3483
|
1408 break; |
|
3233
|
1409 |
|
|
1410 default: |
|
|
1411 { |
|
|
1412 int tmp; |
|
3268
|
1413 do_scanf_conv (is, fmt, &tmp, mval, data, |
|
|
1414 data_index, conversion_count, |
|
3233
|
1415 nr, max_size, discard); |
|
|
1416 } |
|
3483
|
1417 break; |
|
3233
|
1418 } |
|
2117
|
1419 } |
|
3483
|
1420 break; |
|
2117
|
1421 |
|
|
1422 case 'e': case 'f': case 'g': |
|
|
1423 { |
|
2600
|
1424 double tmp; |
|
|
1425 |
|
3268
|
1426 do_scanf_conv (is, fmt, &tmp, mval, data, |
|
|
1427 data_index, conversion_count, |
|
2600
|
1428 nr, max_size, discard); |
|
2117
|
1429 } |
|
3483
|
1430 break; |
|
2117
|
1431 |
|
2213
|
1432 case 'c': |
|
3410
|
1433 { |
|
3483
|
1434 BEGIN_C_CONVERSION (); |
|
3410
|
1435 |
|
|
1436 FINISH_CHARACTER_CONVERSION (); |
|
3483
|
1437 |
|
|
1438 is.setf (flags); |
|
3410
|
1439 } |
|
|
1440 break; |
|
2213
|
1441 |
|
2117
|
1442 case 's': |
|
|
1443 { |
|
3483
|
1444 BEGIN_S_CONVERSION (); |
|
3268
|
1445 |
|
3410
|
1446 FINISH_CHARACTER_CONVERSION (); |
|
2117
|
1447 } |
|
3483
|
1448 break; |
|
|
1449 |
|
|
1450 case '[': case '^': |
|
|
1451 { |
|
|
1452 BEGIN_CHAR_CLASS_CONVERSION (); |
|
|
1453 |
|
|
1454 FINISH_CHARACTER_CONVERSION (); |
|
|
1455 } |
|
|
1456 break; |
|
|
1457 |
|
|
1458 case 'p': |
|
2215
|
1459 error ("fscanf: unsupported format specifier"); |
|
2117
|
1460 break; |
|
|
1461 |
|
|
1462 default: |
|
|
1463 error ("fscanf: internal format error"); |
|
|
1464 break; |
|
|
1465 } |
|
|
1466 |
|
|
1467 if (! ok ()) |
|
|
1468 { |
|
|
1469 break; |
|
|
1470 } |
|
|
1471 else if (! is) |
|
|
1472 { |
|
3268
|
1473 if (all_char_conv) |
|
2117
|
1474 { |
|
3268
|
1475 if (one_elt_size_spec) |
|
|
1476 { |
|
|
1477 final_nr = 1; |
|
|
1478 final_nc = data_index; |
|
|
1479 } |
|
|
1480 else if (data_index > nr) |
|
2117
|
1481 { |
|
2759
|
1482 final_nr = nr; |
|
3268
|
1483 final_nc = (data_index - 1) / nr + 1; |
|
2117
|
1484 } |
|
|
1485 else |
|
|
1486 { |
|
3268
|
1487 final_nr = data_index; |
|
|
1488 final_nc = 1; |
|
|
1489 } |
|
|
1490 } |
|
|
1491 else if (nr > 0) |
|
|
1492 { |
|
|
1493 if (data_index > nr) |
|
|
1494 { |
|
|
1495 final_nr = nr; |
|
|
1496 final_nc = (data_index - 1) / nr + 1; |
|
|
1497 } |
|
|
1498 else |
|
|
1499 { |
|
|
1500 final_nr = data_index; |
|
2117
|
1501 final_nc = 1; |
|
|
1502 } |
|
|
1503 } |
|
|
1504 else |
|
|
1505 { |
|
3268
|
1506 final_nr = data_index; |
|
2759
|
1507 final_nc = 1; |
|
|
1508 } |
|
|
1509 |
|
3337
|
1510 // If it looks like we have a matching failure, then |
|
|
1511 // reset the failbit in the stream state. |
|
|
1512 |
|
3538
|
1513 if (is.rdstate () & std::ios::failbit) |
|
|
1514 is.clear (is.rdstate () & (~std::ios::failbit)); |
|
3337
|
1515 |
|
2759
|
1516 // XXX FIXME XXX -- is this the right thing to do? |
|
3342
|
1517 |
|
|
1518 if (interactive && name () == "stdin") |
|
2759
|
1519 { |
|
|
1520 is.clear (); |
|
|
1521 |
|
|
1522 // Skip to end of line. |
|
|
1523 |
|
|
1524 bool err; |
|
|
1525 do_gets (-1, err, false, "fscanf"); |
|
2117
|
1526 } |
|
|
1527 |
|
|
1528 break; |
|
|
1529 } |
|
|
1530 } |
|
|
1531 else |
|
|
1532 { |
|
|
1533 error ("fscanf: internal format error"); |
|
|
1534 break; |
|
|
1535 } |
|
|
1536 |
|
|
1537 elt = fmt_list.next (); |
|
|
1538 } |
|
|
1539 } |
|
|
1540 |
|
|
1541 if (ok ()) |
|
|
1542 { |
|
2121
|
1543 mval.resize (final_nr, final_nc, 0.0); |
|
2117
|
1544 |
|
3268
|
1545 retval = mval; |
|
|
1546 |
|
2117
|
1547 if (all_char_conv) |
|
3268
|
1548 retval = retval.convert_to_str (); |
|
2117
|
1549 } |
|
|
1550 |
|
|
1551 return retval; |
|
|
1552 } |
|
|
1553 |
|
|
1554 octave_value |
|
3553
|
1555 octave_base_stream::scanf (const std::string& fmt, const Matrix& size, |
|
3559
|
1556 int& conversion_count) |
|
2117
|
1557 { |
|
|
1558 octave_value retval = Matrix (); |
|
|
1559 |
|
3559
|
1560 conversion_count = 0; |
|
2117
|
1561 |
|
3523
|
1562 std::istream *isp = input_stream (); |
|
2117
|
1563 |
|
|
1564 if (isp) |
|
|
1565 { |
|
3523
|
1566 std::istream& is = *isp; |
|
2117
|
1567 |
|
|
1568 scanf_format_list fmt_list (fmt); |
|
|
1569 |
|
|
1570 switch (fmt_list.num_conversions ()) |
|
|
1571 { |
|
|
1572 case -1: |
|
|
1573 ::error ("fscanf: invalid format specified"); |
|
|
1574 break; |
|
|
1575 |
|
|
1576 case 0: |
|
|
1577 { |
|
|
1578 const scanf_format_elt *elt = fmt_list.first (); |
|
|
1579 |
|
|
1580 if (elt) |
|
|
1581 { |
|
|
1582 is.clear (); |
|
|
1583 |
|
|
1584 is.scan (elt->text); |
|
|
1585 |
|
|
1586 if (! is) |
|
|
1587 { |
|
3337
|
1588 // If it looks like we have a matching failure, then |
|
|
1589 // reset the failbit in the stream state. |
|
|
1590 |
|
3538
|
1591 if (is.rdstate () & std::ios::failbit) |
|
|
1592 is.clear (is.rdstate () & (~std::ios::failbit)); |
|
3337
|
1593 else |
|
|
1594 error ("fscanf: read error"); |
|
2117
|
1595 |
|
|
1596 // XXX FIXME XXX -- is this the right thing to do? |
|
3342
|
1597 |
|
|
1598 if (interactive && name () == "stdin") |
|
2215
|
1599 { |
|
|
1600 is.clear (); |
|
|
1601 |
|
|
1602 // Skip to end of line. |
|
|
1603 |
|
|
1604 bool err; |
|
|
1605 do_gets (-1, err, false, "fscanf"); |
|
|
1606 } |
|
|
1607 } |
|
|
1608 } |
|
|
1609 } |
|
|
1610 break; |
|
|
1611 |
|
|
1612 default: |
|
|
1613 { |
|
|
1614 int nr = -1; |
|
|
1615 int nc = -1; |
|
|
1616 |
|
3268
|
1617 bool one_elt_size_spec; |
|
|
1618 |
|
|
1619 get_size (size, nr, nc, one_elt_size_spec, "fscanf"); |
|
2215
|
1620 |
|
|
1621 if (! error_state) |
|
3559
|
1622 retval = do_scanf (fmt_list, nr, nc, one_elt_size_spec, |
|
|
1623 conversion_count); |
|
2215
|
1624 } |
|
|
1625 break; |
|
|
1626 } |
|
|
1627 } |
|
|
1628 else |
|
2712
|
1629 invalid_operation ("fscanf", "reading"); |
|
2572
|
1630 |
|
|
1631 return retval; |
|
|
1632 } |
|
|
1633 |
|
2712
|
1634 bool |
|
|
1635 octave_base_stream::do_oscanf (const scanf_format_elt *elt, |
|
|
1636 octave_value& retval) |
|
2572
|
1637 { |
|
2712
|
1638 bool quit = false; |
|
2215
|
1639 |
|
3523
|
1640 std::istream *isp = input_stream (); |
|
2215
|
1641 |
|
|
1642 if (isp) |
|
|
1643 { |
|
3523
|
1644 std::istream& is = *isp; |
|
2215
|
1645 |
|
3538
|
1646 std::ios::fmtflags flags = is.flags (); |
|
2215
|
1647 |
|
|
1648 if (elt) |
|
|
1649 { |
|
|
1650 const char *fmt = elt->text; |
|
|
1651 |
|
|
1652 bool discard = elt->discard; |
|
|
1653 |
|
|
1654 switch (elt->type) |
|
|
1655 { |
|
3483
|
1656 case scanf_format_elt::whitespace_conversion: |
|
|
1657 DO_WHITESPACE_CONVERSION (); |
|
|
1658 break; |
|
|
1659 |
|
|
1660 case scanf_format_elt::literal_conversion: |
|
|
1661 DO_LITERAL_CONVERSION (); |
|
|
1662 break; |
|
|
1663 |
|
2215
|
1664 case '%': |
|
|
1665 { |
|
|
1666 int dummy; |
|
|
1667 |
|
2712
|
1668 if (! is.scan (fmt, &dummy)) |
|
|
1669 quit = true; |
|
2215
|
1670 } |
|
|
1671 break; |
|
|
1672 |
|
|
1673 case 'd': case 'i': case 'o': case 'u': case 'x': |
|
|
1674 { |
|
|
1675 int tmp; |
|
|
1676 |
|
2712
|
1677 if (is.scan (fmt, &tmp)) |
|
|
1678 { |
|
|
1679 if (! discard) |
|
2800
|
1680 retval = static_cast<double> (tmp); |
|
2712
|
1681 } |
|
|
1682 else |
|
|
1683 quit = true; |
|
2215
|
1684 } |
|
|
1685 break; |
|
|
1686 |
|
|
1687 case 'e': case 'f': case 'g': |
|
|
1688 { |
|
2600
|
1689 double tmp; |
|
|
1690 |
|
2712
|
1691 if (is.scan (fmt, &tmp)) |
|
|
1692 { |
|
|
1693 if (! discard) |
|
|
1694 retval = tmp; |
|
|
1695 } |
|
|
1696 else |
|
|
1697 quit = true; |
|
2215
|
1698 } |
|
|
1699 break; |
|
|
1700 |
|
|
1701 case 'c': |
|
|
1702 { |
|
3483
|
1703 BEGIN_C_CONVERSION (); |
|
|
1704 |
|
|
1705 if (! discard) |
|
|
1706 retval = tmp; |
|
|
1707 |
|
|
1708 delete [] tmp; |
|
|
1709 |
|
|
1710 if (! is) |
|
2712
|
1711 quit = true; |
|
2215
|
1712 |
|
|
1713 is.setf (flags); |
|
|
1714 } |
|
|
1715 break; |
|
|
1716 |
|
|
1717 case 's': |
|
|
1718 { |
|
3483
|
1719 BEGIN_S_CONVERSION (); |
|
|
1720 |
|
|
1721 if (! discard) |
|
|
1722 retval = tmp; |
|
2572
|
1723 |
|
2215
|
1724 delete [] tmp; |
|
3268
|
1725 |
|
|
1726 if (! is) |
|
|
1727 quit = true; |
|
2215
|
1728 } |
|
|
1729 break; |
|
|
1730 |
|
3483
|
1731 case '[': case '^': |
|
|
1732 { |
|
|
1733 BEGIN_CHAR_CLASS_CONVERSION (); |
|
|
1734 |
|
|
1735 if (! discard) |
|
|
1736 retval = tmp; |
|
|
1737 |
|
|
1738 delete [] tmp; |
|
|
1739 |
|
|
1740 if (! is) |
|
|
1741 quit = true; |
|
|
1742 } |
|
|
1743 break; |
|
|
1744 |
|
|
1745 case 'p': |
|
2215
|
1746 error ("fscanf: unsupported format specifier"); |
|
|
1747 break; |
|
|
1748 |
|
|
1749 default: |
|
|
1750 error ("fscanf: internal format error"); |
|
|
1751 break; |
|
|
1752 } |
|
|
1753 } |
|
|
1754 |
|
|
1755 if (ok () && is.fail ()) |
|
|
1756 { |
|
|
1757 error ("fscanf: read error"); |
|
3483
|
1758 |
|
2215
|
1759 // XXX FIXME XXX -- is this the right thing to do? |
|
3342
|
1760 |
|
|
1761 if (interactive && name () == "stdin") |
|
2215
|
1762 { |
|
|
1763 // Skip to end of line. |
|
|
1764 |
|
|
1765 bool err; |
|
|
1766 do_gets (-1, err, false, "fscanf"); |
|
|
1767 } |
|
|
1768 } |
|
|
1769 } |
|
|
1770 |
|
2712
|
1771 return quit; |
|
2215
|
1772 } |
|
|
1773 |
|
|
1774 octave_value_list |
|
3523
|
1775 octave_base_stream::oscanf (const std::string& fmt) |
|
2215
|
1776 { |
|
|
1777 octave_value_list retval; |
|
|
1778 |
|
3523
|
1779 std::istream *isp = input_stream (); |
|
2215
|
1780 |
|
|
1781 if (isp) |
|
|
1782 { |
|
3523
|
1783 std::istream& is = *isp; |
|
2215
|
1784 |
|
|
1785 scanf_format_list fmt_list (fmt); |
|
|
1786 |
|
|
1787 int nconv = fmt_list.num_conversions (); |
|
|
1788 |
|
|
1789 switch (nconv) |
|
|
1790 { |
|
|
1791 case -1: |
|
|
1792 ::error ("fscanf: invalid format specified"); |
|
|
1793 break; |
|
|
1794 |
|
|
1795 case 0: |
|
|
1796 { |
|
|
1797 const scanf_format_elt *elt = fmt_list.first (); |
|
|
1798 |
|
|
1799 if (elt) |
|
|
1800 { |
|
|
1801 is.clear (); |
|
|
1802 |
|
|
1803 is.scan (elt->text); |
|
|
1804 |
|
|
1805 if (! is) |
|
|
1806 { |
|
|
1807 error ("fscanf: read error"); |
|
|
1808 |
|
|
1809 // XXX FIXME XXX -- is this the right thing to do? |
|
3342
|
1810 |
|
|
1811 if (interactive && name () == "stdin") |
|
2117
|
1812 { |
|
|
1813 is.clear (); |
|
|
1814 |
|
|
1815 // Skip to end of line. |
|
|
1816 |
|
|
1817 bool err; |
|
|
1818 do_gets (-1, err, false, "fscanf"); |
|
|
1819 } |
|
|
1820 } |
|
|
1821 } |
|
|
1822 } |
|
|
1823 break; |
|
|
1824 |
|
|
1825 default: |
|
|
1826 { |
|
3483
|
1827 is.clear (); |
|
|
1828 |
|
2215
|
1829 int len = fmt_list.length (); |
|
|
1830 |
|
3491
|
1831 retval.resize (nconv+1, Matrix ()); |
|
2215
|
1832 |
|
|
1833 const scanf_format_elt *elt = fmt_list.first (); |
|
|
1834 |
|
2572
|
1835 int num_values = 0; |
|
|
1836 |
|
2712
|
1837 bool quit = false; |
|
|
1838 |
|
3483
|
1839 for (int i = 0; i < len; i++) |
|
2215
|
1840 { |
|
2712
|
1841 octave_value tmp; |
|
|
1842 |
|
|
1843 quit = do_oscanf (elt, tmp); |
|
|
1844 |
|
|
1845 if (quit) |
|
2215
|
1846 break; |
|
2712
|
1847 else |
|
|
1848 { |
|
|
1849 if (tmp.is_defined ()) |
|
|
1850 retval (num_values++) = tmp; |
|
|
1851 |
|
|
1852 if (! ok ()) |
|
|
1853 break; |
|
|
1854 elt = fmt_list.next (); |
|
|
1855 } |
|
2215
|
1856 } |
|
|
1857 |
|
3491
|
1858 retval (nconv) = static_cast<double> (num_values); |
|
2572
|
1859 |
|
2712
|
1860 if (! quit) |
|
|
1861 { |
|
|
1862 // Pick up any trailing stuff. |
|
|
1863 if (ok () && len > nconv) |
|
|
1864 { |
|
|
1865 octave_value tmp; |
|
|
1866 do_oscanf (elt, tmp); |
|
|
1867 } |
|
|
1868 } |
|
2117
|
1869 } |
|
|
1870 break; |
|
|
1871 } |
|
|
1872 } |
|
|
1873 else |
|
2712
|
1874 invalid_operation ("fscanf", "reading"); |
|
2117
|
1875 |
|
|
1876 return retval; |
|
|
1877 } |
|
|
1878 |
|
|
1879 // Functions that are defined for all output streams (output streams |
|
|
1880 // are those that define os). |
|
|
1881 |
|
|
1882 int |
|
|
1883 octave_base_stream::flush (void) |
|
|
1884 { |
|
|
1885 int retval = -1; |
|
|
1886 |
|
3523
|
1887 std::ostream *os = output_stream (); |
|
2117
|
1888 |
|
|
1889 if (os) |
|
|
1890 { |
|
|
1891 os->flush (); |
|
|
1892 |
|
|
1893 if (os->good ()) |
|
|
1894 retval = 0; |
|
|
1895 } |
|
|
1896 else |
|
|
1897 invalid_operation ("fflush", "writing"); |
|
|
1898 |
|
|
1899 return retval; |
|
|
1900 } |
|
|
1901 |
|
|
1902 int |
|
2317
|
1903 octave_base_stream::write (const octave_value& data, |
|
|
1904 oct_data_conv::data_type dt, int skip, |
|
3553
|
1905 oct_mach_info::float_format ffmt) |
|
2117
|
1906 { |
|
|
1907 int retval = -1; |
|
|
1908 |
|
3523
|
1909 std::ostream *osp = output_stream (); |
|
2117
|
1910 |
|
|
1911 if (osp) |
|
|
1912 { |
|
3523
|
1913 std::ostream& os = *osp; |
|
2117
|
1914 |
|
|
1915 Matrix mval = data.matrix_value (); |
|
|
1916 |
|
|
1917 if (! error_state) |
|
|
1918 { |
|
3553
|
1919 if (ffmt == oct_mach_info::unknown) |
|
|
1920 ffmt = float_format (); |
|
|
1921 |
|
|
1922 int tmp = mval.write (os, dt, skip, ffmt); |
|
2317
|
1923 |
|
|
1924 if (tmp < 0) |
|
|
1925 error ("fwrite: write error"); |
|
|
1926 else |
|
|
1927 retval = tmp; |
|
2117
|
1928 } |
|
|
1929 } |
|
|
1930 else |
|
|
1931 invalid_operation ("fwrite", "writing"); |
|
|
1932 |
|
|
1933 return retval; |
|
|
1934 } |
|
|
1935 |
|
|
1936 class |
|
|
1937 printf_value_cache |
|
|
1938 { |
|
|
1939 public: |
|
|
1940 |
|
|
1941 enum state { ok, list_exhausted, conversion_error }; |
|
|
1942 |
|
|
1943 printf_value_cache (const octave_value_list& args) |
|
|
1944 : values (args), val_idx (0), elt_idx (0), |
|
|
1945 n_vals (values.length ()), n_elts (0), data (0), |
|
|
1946 curr_state (ok) { } |
|
|
1947 |
|
|
1948 ~printf_value_cache (void) { } |
|
|
1949 |
|
|
1950 // Get the current value as a double and advance the internal pointer. |
|
|
1951 double double_value (void); |
|
|
1952 |
|
|
1953 // Get the current value as an int and advance the internal pointer. |
|
|
1954 int int_value (void); |
|
|
1955 |
|
|
1956 // Get the current value as a string and advance the internal pointer. |
|
3523
|
1957 std::string string_value (void); |
|
2117
|
1958 |
|
3145
|
1959 operator bool () const { return (curr_state == ok); } |
|
2117
|
1960 |
|
|
1961 bool no_more_values (void) { return curr_state == list_exhausted; } |
|
|
1962 |
|
|
1963 bool looking_at_string (void); |
|
|
1964 |
|
|
1965 private: |
|
|
1966 |
|
|
1967 const octave_value_list values; |
|
|
1968 int val_idx; |
|
|
1969 int elt_idx; |
|
|
1970 int n_vals; |
|
|
1971 int n_elts; |
|
|
1972 const double *data; |
|
|
1973 Matrix curr_val; |
|
|
1974 state curr_state; |
|
|
1975 |
|
|
1976 // Must create value cache with values! |
|
|
1977 |
|
|
1978 printf_value_cache (void); |
|
|
1979 |
|
|
1980 // No copying! |
|
|
1981 |
|
|
1982 printf_value_cache (const printf_value_cache&); |
|
|
1983 |
|
|
1984 printf_value_cache& operator = (const printf_value_cache&); |
|
|
1985 }; |
|
|
1986 |
|
|
1987 bool |
|
|
1988 printf_value_cache::looking_at_string (void) |
|
|
1989 { |
|
|
1990 bool retval = false; |
|
|
1991 |
|
|
1992 int idx = -1; |
|
|
1993 |
|
|
1994 if (elt_idx == 0) |
|
|
1995 idx = val_idx; |
|
|
1996 else if (elt_idx >= n_elts) |
|
|
1997 idx = val_idx + 1; |
|
|
1998 |
|
|
1999 if (idx >= 0 && idx < n_vals) |
|
|
2000 { |
|
|
2001 octave_value tmp_val = values (idx); |
|
|
2002 |
|
2613
|
2003 // An empty string has zero rows and zero columns. |
|
|
2004 |
|
|
2005 if (tmp_val.is_string ()) |
|
|
2006 { |
|
|
2007 int nr = tmp_val.rows (); |
|
|
2008 |
|
|
2009 retval = (nr == 1 || (nr == 0 && tmp_val.columns () == 0)); |
|
|
2010 } |
|
2117
|
2011 } |
|
|
2012 |
|
|
2013 return retval; |
|
|
2014 } |
|
|
2015 |
|
|
2016 double |
|
|
2017 printf_value_cache::double_value (void) |
|
|
2018 { |
|
|
2019 double retval = 0.0; |
|
|
2020 |
|
|
2021 while (val_idx < n_vals) |
|
|
2022 { |
|
|
2023 if (! data) |
|
|
2024 { |
|
|
2025 octave_value tmp_val = values (val_idx); |
|
|
2026 |
|
|
2027 curr_val = tmp_val.matrix_value (); |
|
|
2028 |
|
|
2029 if (! error_state) |
|
|
2030 { |
|
|
2031 elt_idx = 0; |
|
|
2032 n_elts = curr_val.length (); |
|
|
2033 data = curr_val.data (); |
|
|
2034 } |
|
|
2035 else |
|
|
2036 { |
|
|
2037 curr_state = conversion_error; |
|
|
2038 break; |
|
|
2039 } |
|
|
2040 } |
|
|
2041 |
|
|
2042 if (elt_idx < n_elts) |
|
|
2043 { |
|
|
2044 return data[elt_idx++]; |
|
|
2045 break; |
|
|
2046 } |
|
|
2047 else |
|
|
2048 { |
|
|
2049 val_idx++; |
|
|
2050 data = 0; |
|
|
2051 continue; |
|
|
2052 } |
|
|
2053 } |
|
|
2054 |
|
|
2055 curr_state = list_exhausted; |
|
|
2056 |
|
|
2057 return retval; |
|
|
2058 } |
|
|
2059 |
|
|
2060 int |
|
|
2061 printf_value_cache::int_value (void) |
|
|
2062 { |
|
|
2063 int retval = 0; |
|
|
2064 |
|
|
2065 double dval = double_value (); |
|
|
2066 |
|
|
2067 if (! error_state) |
|
|
2068 { |
|
|
2069 if (D_NINT (dval) == dval) |
|
|
2070 retval = NINT (dval); |
|
|
2071 else |
|
|
2072 curr_state = conversion_error; |
|
|
2073 } |
|
|
2074 |
|
|
2075 return retval; |
|
|
2076 } |
|
|
2077 |
|
3536
|
2078 std::string |
|
2117
|
2079 printf_value_cache::string_value (void) |
|
|
2080 { |
|
3523
|
2081 std::string retval; |
|
2117
|
2082 |
|
|
2083 if (looking_at_string ()) |
|
|
2084 { |
|
|
2085 if (elt_idx != 0) |
|
|
2086 { |
|
|
2087 val_idx++; |
|
|
2088 elt_idx = 0; |
|
|
2089 data = 0; |
|
|
2090 } |
|
|
2091 |
|
|
2092 retval = values (val_idx++).string_value (); |
|
|
2093 } |
|
|
2094 else |
|
|
2095 curr_state = conversion_error; |
|
|
2096 |
|
|
2097 return retval; |
|
|
2098 } |
|
|
2099 |
|
|
2100 // Ugh again and again. |
|
|
2101 |
|
2572
|
2102 template <class T> |
|
|
2103 void |
|
3523
|
2104 do_printf_conv (std::ostream& os, const char *fmt, int nsa, int sa_1, |
|
2572
|
2105 int sa_2, bool have_arg, T arg) |
|
|
2106 { |
|
|
2107 switch (nsa) |
|
|
2108 { |
|
|
2109 case 2: |
|
|
2110 if (have_arg) |
|
|
2111 os.form (fmt, sa_1, sa_2, arg); |
|
|
2112 else |
|
|
2113 os.form (fmt, sa_1, sa_2); |
|
|
2114 break; |
|
|
2115 |
|
|
2116 case 1: |
|
|
2117 if (have_arg) |
|
|
2118 os.form (fmt, sa_1, arg); |
|
|
2119 else |
|
|
2120 os.form (fmt, sa_1); |
|
|
2121 break; |
|
|
2122 |
|
|
2123 case 0: |
|
|
2124 if (have_arg) |
|
|
2125 os.form (fmt, arg); |
|
|
2126 else |
|
|
2127 os.form (fmt); |
|
|
2128 break; |
|
|
2129 |
|
|
2130 default: |
|
|
2131 ::error ("fprintf: internal error handling format"); |
|
|
2132 break; |
|
|
2133 } |
|
|
2134 } |
|
|
2135 |
|
|
2136 template void |
|
3523
|
2137 do_printf_conv (std::ostream&, const char*, int, int, int, bool, int); |
|
2572
|
2138 |
|
|
2139 template void |
|
3523
|
2140 do_printf_conv (std::ostream&, const char*, int, int, int, bool, long); |
|
2572
|
2141 |
|
|
2142 template void |
|
3523
|
2143 do_printf_conv (std::ostream&, const char*, int, int, int, bool, double); |
|
2572
|
2144 |
|
|
2145 template void |
|
3523
|
2146 do_printf_conv (std::ostream&, const char*, int, int, int, bool, const char*); |
|
2117
|
2147 |
|
|
2148 int |
|
|
2149 octave_base_stream::do_printf (printf_format_list& fmt_list, |
|
|
2150 const octave_value_list& args) |
|
|
2151 { |
|
|
2152 int retval = -1; |
|
|
2153 |
|
3523
|
2154 std::ostream *osp = output_stream (); |
|
2117
|
2155 |
|
|
2156 if (osp) |
|
|
2157 { |
|
3523
|
2158 std::ostream& os = *osp; |
|
2117
|
2159 |
|
|
2160 const printf_format_elt *elt = fmt_list.first (); |
|
|
2161 |
|
|
2162 printf_value_cache val_cache (args); |
|
|
2163 |
|
|
2164 for (;;) |
|
|
2165 { |
|
|
2166 if (elt) |
|
|
2167 { |
|
|
2168 int args = elt->args; |
|
|
2169 int nsa = args; |
|
|
2170 |
|
|
2171 int doing_percent = elt->type == '%'; |
|
|
2172 |
|
|
2173 if (args > 0 && ! doing_percent) |
|
|
2174 nsa--; |
|
|
2175 |
|
|
2176 int sa_1 = 0; |
|
|
2177 int sa_2 = 0; |
|
|
2178 |
|
|
2179 if (nsa > 0) |
|
|
2180 { |
|
|
2181 sa_1 = val_cache.int_value (); |
|
|
2182 |
|
|
2183 if (! val_cache) |
|
|
2184 break; |
|
|
2185 else |
|
|
2186 { |
|
|
2187 if (nsa > 1) |
|
|
2188 { |
|
|
2189 sa_2 = val_cache.int_value (); |
|
|
2190 |
|
|
2191 if (! val_cache) |
|
|
2192 break; |
|
|
2193 } |
|
|
2194 } |
|
|
2195 } |
|
|
2196 |
|
|
2197 const char *fmt = elt->text; |
|
|
2198 |
|
|
2199 if (doing_percent || args == 0) |
|
2572
|
2200 do_printf_conv (os, fmt, nsa, sa_1, sa_2, false, 0.0); |
|
2117
|
2201 else |
|
|
2202 { |
|
|
2203 if (elt->type == 's' && val_cache.looking_at_string ()) |
|
|
2204 { |
|
3523
|
2205 std::string val = val_cache.string_value (); |
|
2117
|
2206 |
|
|
2207 if (val_cache) |
|
2572
|
2208 do_printf_conv (os, fmt, nsa, sa_1, sa_2, true, |
|
2117
|
2209 val.c_str ()); |
|
|
2210 else |
|
|
2211 break; |
|
|
2212 } |
|
|
2213 else |
|
|
2214 { |
|
|
2215 double val = val_cache.double_value (); |
|
|
2216 |
|
|
2217 if (val_cache) |
|
|
2218 { |
|
|
2219 switch (elt->type) |
|
|
2220 { |
|
|
2221 case 'd': case 'i': case 'o': case 'x': |
|
|
2222 case 'X': case 'u': case 'c': |
|
|
2223 { |
|
|
2224 if (elt->modifier == 'l') |
|
|
2225 do_printf_conv (os, fmt, nsa, sa_1, |
|
2800
|
2226 sa_2, true, |
|
|
2227 static_cast<long> (val)); |
|
2117
|
2228 else |
|
|
2229 do_printf_conv (os, fmt, nsa, sa_1, |
|
2800
|
2230 sa_2, true, |
|
|
2231 static_cast<int> (val)); |
|
2117
|
2232 } |
|
|
2233 break; |
|
|
2234 |
|
|
2235 case 'f': case 'e': case 'E': |
|
|
2236 case 'g': case 'G': |
|
|
2237 do_printf_conv (os, fmt, nsa, sa_1, |
|
2572
|
2238 sa_2, true, val); |
|
2117
|
2239 break; |
|
|
2240 |
|
|
2241 default: |
|
|
2242 error ("fprintf: invalid format specifier"); |
|
|
2243 return -1; |
|
|
2244 break; |
|
|
2245 } |
|
|
2246 } |
|
|
2247 else |
|
|
2248 break; |
|
|
2249 } |
|
|
2250 |
|
|
2251 if (val_cache.no_more_values ()) |
|
|
2252 { |
|
|
2253 retval = 0; |
|
|
2254 break; |
|
|
2255 } |
|
|
2256 } |
|
|
2257 |
|
|
2258 if (os) |
|
|
2259 retval += nsa + (doing_percent ? 0 : 1); |
|
|
2260 else |
|
|
2261 { |
|
|
2262 error ("fprintf: write error"); |
|
|
2263 retval = -1; |
|
|
2264 break; |
|
|
2265 } |
|
|
2266 } |
|
|
2267 else |
|
|
2268 { |
|
|
2269 ::error ("fprintf: internal error handling format"); |
|
|
2270 retval = -1; |
|
|
2271 break; |
|
|
2272 } |
|
|
2273 |
|
|
2274 elt = fmt_list.next (); |
|
|
2275 } |
|
|
2276 } |
|
|
2277 |
|
|
2278 return retval; |
|
|
2279 } |
|
|
2280 |
|
|
2281 int |
|
3523
|
2282 octave_base_stream::printf (const std::string& fmt, const octave_value_list& args) |
|
2117
|
2283 { |
|
|
2284 int retval = -1; |
|
|
2285 |
|
3523
|
2286 std::ostream *osp = output_stream (); |
|
2117
|
2287 |
|
|
2288 if (osp) |
|
|
2289 { |
|
3523
|
2290 std::ostream& os = *osp; |
|
2117
|
2291 |
|
|
2292 printf_format_list fmt_list (fmt); |
|
|
2293 |
|
|
2294 switch (fmt_list.num_conversions ()) |
|
|
2295 { |
|
|
2296 case -1: |
|
|
2297 ::error ("fprintf: invalid format specified"); |
|
|
2298 break; |
|
|
2299 |
|
|
2300 case 0: |
|
|
2301 { |
|
|
2302 const printf_format_elt *elt = fmt_list.first (); |
|
|
2303 |
|
|
2304 if (elt) |
|
|
2305 { |
|
|
2306 os.form (elt->text); |
|
|
2307 |
|
|
2308 if (os) |
|
|
2309 retval = 0; |
|
|
2310 else |
|
|
2311 error ("fprintf: write error"); |
|
|
2312 } |
|
|
2313 } |
|
|
2314 break; |
|
|
2315 |
|
|
2316 default: |
|
|
2317 { |
|
|
2318 if (args.length () == 0) |
|
|
2319 ::error ("fprintf: no arguments available for specified format"); |
|
|
2320 else |
|
|
2321 retval = do_printf (fmt_list, args); |
|
|
2322 } |
|
|
2323 break; |
|
|
2324 } |
|
|
2325 } |
|
|
2326 else |
|
|
2327 invalid_operation ("fprintf", "writing"); |
|
|
2328 |
|
|
2329 return retval; |
|
|
2330 } |
|
|
2331 |
|
|
2332 int |
|
3523
|
2333 octave_base_stream::puts (const std::string& s) |
|
2117
|
2334 { |
|
|
2335 int retval = -1; |
|
|
2336 |
|
3523
|
2337 std::ostream *osp = output_stream (); |
|
2117
|
2338 |
|
|
2339 if (osp) |
|
|
2340 { |
|
3523
|
2341 std::ostream& os = *osp; |
|
2117
|
2342 |
|
|
2343 os << s; |
|
|
2344 |
|
|
2345 if (os) |
|
|
2346 { |
|
|
2347 // XXX FIXME XXX -- why does this seem to be necessary? |
|
|
2348 // Without it, output from a loop like |
|
|
2349 // |
|
|
2350 // for i = 1:100, fputs (stdout, "foo\n"); endfor |
|
|
2351 // |
|
|
2352 // doesn't seem to go to the pager immediately. |
|
|
2353 |
|
|
2354 os.flush (); |
|
|
2355 |
|
|
2356 if (os) |
|
|
2357 retval = 0; |
|
|
2358 else |
|
|
2359 error ("fputs: write error"); |
|
|
2360 } |
|
|
2361 else |
|
|
2362 error ("fputs: write error"); |
|
|
2363 } |
|
|
2364 else |
|
|
2365 invalid_operation ("fputs", "writing"); |
|
|
2366 |
|
|
2367 return retval; |
|
|
2368 } |
|
|
2369 |
|
|
2370 int |
|
|
2371 octave_base_stream::rewind (void) |
|
|
2372 { |
|
3538
|
2373 return seek (0, std::ios::beg); |
|
2117
|
2374 } |
|
|
2375 |
|
|
2376 // Return current error message for this stream. |
|
|
2377 |
|
3536
|
2378 std::string |
|
2435
|
2379 octave_base_stream::error (bool clear_err, int& err_num) |
|
2117
|
2380 { |
|
2435
|
2381 err_num = fail ? -1 : 0; |
|
2117
|
2382 |
|
3523
|
2383 std::string tmp = errmsg; |
|
2117
|
2384 |
|
|
2385 if (clear_err) |
|
|
2386 clear (); |
|
|
2387 |
|
|
2388 return tmp; |
|
|
2389 } |
|
|
2390 |
|
|
2391 void |
|
|
2392 octave_base_stream::invalid_operation (const char *op, const char *rw) |
|
|
2393 { |
|
3523
|
2394 std::string msg = op; |
|
2117
|
2395 msg.append (": stream not open for "); |
|
|
2396 msg.append (rw); |
|
|
2397 error (msg); |
|
|
2398 } |
|
|
2399 |
|
3552
|
2400 octave_stream::octave_stream (octave_base_stream *bs) |
|
3340
|
2401 : rep (bs) |
|
|
2402 { |
|
|
2403 if (rep) |
|
|
2404 rep->count = 1; |
|
|
2405 } |
|
|
2406 |
|
|
2407 octave_stream::~octave_stream (void) |
|
|
2408 { |
|
|
2409 if (rep && --rep->count == 0) |
|
|
2410 delete rep; |
|
|
2411 } |
|
|
2412 |
|
|
2413 octave_stream::octave_stream (const octave_stream& s) |
|
|
2414 : rep (s.rep) |
|
|
2415 { |
|
|
2416 if (rep) |
|
|
2417 rep->count++; |
|
|
2418 } |
|
|
2419 |
|
|
2420 octave_stream& |
|
|
2421 octave_stream::operator = (const octave_stream& s) |
|
|
2422 { |
|
|
2423 if (rep != s.rep) |
|
|
2424 { |
|
|
2425 if (rep && --rep->count == 0) |
|
|
2426 delete rep; |
|
|
2427 |
|
|
2428 rep = s.rep; |
|
|
2429 |
|
|
2430 if (rep) |
|
|
2431 rep->count++; |
|
|
2432 } |
|
|
2433 |
|
|
2434 return *this; |
|
|
2435 } |
|
|
2436 |
|
2117
|
2437 int |
|
|
2438 octave_stream::flush (void) |
|
|
2439 { |
|
|
2440 int retval = -1; |
|
|
2441 |
|
|
2442 if (stream_ok ("fflush")) |
|
|
2443 retval = rep->flush (); |
|
|
2444 |
|
|
2445 return retval; |
|
|
2446 } |
|
|
2447 |
|
3536
|
2448 std::string |
|
2117
|
2449 octave_stream::getl (int max_len, bool& err) |
|
|
2450 { |
|
3523
|
2451 std::string retval; |
|
2117
|
2452 |
|
|
2453 if (stream_ok ("getl")) |
|
|
2454 retval = rep->getl (max_len, err); |
|
|
2455 |
|
|
2456 return retval; |
|
|
2457 } |
|
|
2458 |
|
3536
|
2459 std::string |
|
2117
|
2460 octave_stream::getl (const octave_value& tc_max_len, bool& err) |
|
|
2461 { |
|
3523
|
2462 std::string retval; |
|
2117
|
2463 |
|
|
2464 err = false; |
|
|
2465 |
|
|
2466 int conv_err = 0; |
|
|
2467 |
|
|
2468 int max_len = convert_to_valid_int (tc_max_len, conv_err); |
|
|
2469 |
|
|
2470 if (conv_err || max_len < 0) |
|
|
2471 { |
|
|
2472 err = true; |
|
|
2473 ::error ("fgetl: invalid maximum length specified"); |
|
|
2474 } |
|
|
2475 else |
|
|
2476 retval = getl (max_len, err); |
|
|
2477 |
|
|
2478 return retval; |
|
|
2479 } |
|
|
2480 |
|
3536
|
2481 std::string |
|
2117
|
2482 octave_stream::gets (int max_len, bool& err) |
|
|
2483 { |
|
3523
|
2484 std::string retval; |
|
2117
|
2485 |
|
|
2486 if (stream_ok ("fgets")) |
|
|
2487 retval = rep->gets (max_len, err); |
|
|
2488 |
|
|
2489 return retval; |
|
|
2490 } |
|
|
2491 |
|
3536
|
2492 std::string |
|
2117
|
2493 octave_stream::gets (const octave_value& tc_max_len, bool& err) |
|
|
2494 { |
|
3523
|
2495 std::string retval; |
|
2117
|
2496 |
|
|
2497 err = false; |
|
|
2498 |
|
|
2499 int conv_err = 0; |
|
|
2500 |
|
|
2501 int max_len = convert_to_valid_int (tc_max_len, conv_err); |
|
|
2502 |
|
|
2503 if (conv_err || max_len < 0) |
|
|
2504 { |
|
|
2505 err = true; |
|
|
2506 ::error ("fgets: invalid maximum length specified"); |
|
|
2507 } |
|
|
2508 else |
|
|
2509 retval = gets (max_len, err); |
|
|
2510 |
|
|
2511 return retval; |
|
|
2512 } |
|
|
2513 |
|
|
2514 int |
|
3546
|
2515 octave_stream::seek (std::streamoff offset, std::ios::seek_dir origin) |
|
2117
|
2516 { |
|
|
2517 int retval = -1; |
|
|
2518 |
|
|
2519 if (stream_ok ("fseek")) |
|
|
2520 retval = rep->seek (offset, origin); |
|
|
2521 |
|
|
2522 return retval; |
|
|
2523 } |
|
|
2524 |
|
|
2525 int |
|
|
2526 octave_stream::seek (const octave_value& tc_offset, |
|
|
2527 const octave_value& tc_origin) |
|
|
2528 { |
|
|
2529 int retval = -1; |
|
|
2530 |
|
|
2531 int conv_err = 0; |
|
|
2532 |
|
|
2533 int xoffset = convert_to_valid_int (tc_offset, conv_err); |
|
|
2534 |
|
|
2535 if (! conv_err) |
|
|
2536 { |
|
3538
|
2537 std::ios::seek_dir origin = std::ios::beg; |
|
2117
|
2538 |
|
2341
|
2539 if (tc_origin.is_string ()) |
|
2117
|
2540 { |
|
3523
|
2541 std::string xorigin = tc_origin.string_value (); |
|
2341
|
2542 |
|
|
2543 if (xorigin == "bof") |
|
3538
|
2544 origin = std::ios::beg; |
|
2341
|
2545 else if (xorigin == "cof") |
|
3538
|
2546 origin = std::ios::cur; |
|
2341
|
2547 else if (xorigin == "eof") |
|
3538
|
2548 origin = std::ios::end; |
|
2117
|
2549 else |
|
|
2550 conv_err = -1; |
|
|
2551 } |
|
2341
|
2552 else |
|
|
2553 { |
|
|
2554 int xorigin = convert_to_valid_int (tc_origin, conv_err); |
|
|
2555 |
|
|
2556 if (! conv_err) |
|
|
2557 { |
|
|
2558 if (xorigin == -1) |
|
3538
|
2559 origin = std::ios::beg; |
|
2341
|
2560 else if (xorigin == 0) |
|
3538
|
2561 origin = std::ios::cur; |
|
2341
|
2562 else if (xorigin == 1) |
|
3538
|
2563 origin = std::ios::end; |
|
2341
|
2564 else |
|
|
2565 conv_err = -1; |
|
|
2566 } |
|
|
2567 } |
|
2117
|
2568 |
|
|
2569 if (! conv_err) |
|
|
2570 retval = seek (xoffset, origin); |
|
|
2571 else |
|
|
2572 error ("fseek: invalid value for origin"); |
|
|
2573 } |
|
|
2574 else |
|
|
2575 error ("fseek: invalid value for offset"); |
|
|
2576 |
|
|
2577 return retval; |
|
|
2578 } |
|
|
2579 |
|
|
2580 long |
|
|
2581 octave_stream::tell (void) const |
|
|
2582 { |
|
|
2583 long retval = -1; |
|
|
2584 |
|
|
2585 if (stream_ok ("tell")) |
|
|
2586 retval = rep->tell (); |
|
|
2587 |
|
|
2588 return retval; |
|
|
2589 } |
|
|
2590 |
|
|
2591 int |
|
|
2592 octave_stream::rewind (void) |
|
|
2593 { |
|
|
2594 int retval = -1; |
|
|
2595 |
|
|
2596 if (stream_ok ("frewind")) |
|
|
2597 retval = rep->rewind (); |
|
|
2598 |
|
|
2599 return retval; |
|
|
2600 } |
|
|
2601 |
|
3340
|
2602 bool |
|
|
2603 octave_stream::is_open (void) const |
|
|
2604 { |
|
|
2605 bool retval = false; |
|
|
2606 |
|
|
2607 if (stream_ok ("is_open")) |
|
|
2608 retval = rep->is_open (); |
|
|
2609 |
|
|
2610 return retval; |
|
|
2611 } |
|
|
2612 |
|
|
2613 void |
|
|
2614 octave_stream::close (void) |
|
|
2615 { |
|
|
2616 if (stream_ok ("close")) |
|
|
2617 rep->close (); |
|
|
2618 } |
|
|
2619 |
|
2117
|
2620 octave_value |
|
|
2621 octave_stream::read (const Matrix& size, |
|
2317
|
2622 oct_data_conv::data_type dt, int skip, |
|
|
2623 oct_mach_info::float_format flt_fmt, int& count) |
|
2117
|
2624 { |
|
|
2625 octave_value retval; |
|
|
2626 |
|
|
2627 if (stream_ok ("fread")) |
|
2317
|
2628 retval = rep->read (size, dt, skip, flt_fmt, count); |
|
2117
|
2629 |
|
|
2630 return retval; |
|
|
2631 } |
|
|
2632 |
|
|
2633 int |
|
|
2634 octave_stream::write (const octave_value& data, |
|
2317
|
2635 oct_data_conv::data_type dt, int skip, |
|
|
2636 oct_mach_info::float_format flt_fmt) |
|
2117
|
2637 { |
|
|
2638 int retval = -1; |
|
|
2639 |
|
|
2640 if (stream_ok ("fwrite")) |
|
2317
|
2641 retval = rep->write (data, dt, skip, flt_fmt); |
|
2117
|
2642 |
|
|
2643 return retval; |
|
|
2644 } |
|
|
2645 |
|
|
2646 octave_value |
|
3523
|
2647 octave_stream::scanf (const std::string& fmt, const Matrix& size, int& count) |
|
2117
|
2648 { |
|
|
2649 octave_value retval; |
|
|
2650 |
|
|
2651 if (stream_ok ("fscanf")) |
|
|
2652 retval = rep->scanf (fmt, size, count); |
|
|
2653 |
|
|
2654 return retval; |
|
|
2655 } |
|
|
2656 |
|
2215
|
2657 octave_value_list |
|
3523
|
2658 octave_stream::oscanf (const std::string& fmt) |
|
2215
|
2659 { |
|
|
2660 octave_value_list retval; |
|
|
2661 |
|
|
2662 if (stream_ok ("fscanf")) |
|
|
2663 retval = rep->oscanf (fmt); |
|
|
2664 |
|
|
2665 return retval; |
|
|
2666 } |
|
|
2667 |
|
2117
|
2668 int |
|
3523
|
2669 octave_stream::printf (const std::string& fmt, const octave_value_list& args) |
|
2117
|
2670 { |
|
|
2671 int retval = -1; |
|
|
2672 |
|
|
2673 if (stream_ok ("fprintf")) |
|
|
2674 retval = rep->printf (fmt, args); |
|
|
2675 |
|
|
2676 return retval; |
|
|
2677 } |
|
|
2678 |
|
|
2679 int |
|
3523
|
2680 octave_stream::puts (const std::string& s) |
|
2117
|
2681 { |
|
|
2682 int retval = -1; |
|
|
2683 |
|
|
2684 if (stream_ok ("fputs")) |
|
|
2685 retval = rep->puts (s); |
|
|
2686 |
|
|
2687 return retval; |
|
|
2688 } |
|
|
2689 |
|
|
2690 // XXX FIXME XXX -- maybe this should work for string arrays too. |
|
|
2691 |
|
|
2692 int |
|
|
2693 octave_stream::puts (const octave_value& tc_s) |
|
|
2694 { |
|
|
2695 int retval = -1; |
|
|
2696 |
|
|
2697 if (tc_s.is_string ()) |
|
|
2698 { |
|
3523
|
2699 std::string s = tc_s.string_value (); |
|
2117
|
2700 retval = rep->puts (s); |
|
|
2701 } |
|
|
2702 else |
|
|
2703 error ("fputs: argument must be a string"); |
|
|
2704 |
|
|
2705 return retval; |
|
|
2706 } |
|
|
2707 |
|
|
2708 bool |
|
|
2709 octave_stream::eof (void) const |
|
|
2710 { |
|
|
2711 int retval = -1; |
|
|
2712 |
|
|
2713 if (stream_ok ("feof")) |
|
|
2714 retval = rep->eof (); |
|
|
2715 |
|
|
2716 return retval; |
|
|
2717 } |
|
|
2718 |
|
3536
|
2719 std::string |
|
2435
|
2720 octave_stream::error (bool clear, int& err_num) |
|
2117
|
2721 { |
|
3523
|
2722 std::string retval; |
|
2117
|
2723 |
|
|
2724 if (stream_ok ("ferror", false)) |
|
2435
|
2725 retval = rep->error (clear, err_num); |
|
2117
|
2726 |
|
|
2727 return retval; |
|
|
2728 } |
|
|
2729 |
|
3536
|
2730 std::string |
|
3340
|
2731 octave_stream::name (void) const |
|
2117
|
2732 { |
|
3523
|
2733 std::string retval; |
|
2117
|
2734 |
|
|
2735 if (stream_ok ("name")) |
|
|
2736 retval = rep->name (); |
|
|
2737 |
|
|
2738 return retval; |
|
|
2739 } |
|
|
2740 |
|
|
2741 int |
|
3340
|
2742 octave_stream::mode (void) const |
|
2117
|
2743 { |
|
|
2744 int retval = 0; |
|
|
2745 |
|
|
2746 if (stream_ok ("mode")) |
|
|
2747 retval = rep->mode (); |
|
|
2748 |
|
|
2749 return retval; |
|
|
2750 } |
|
|
2751 |
|
2317
|
2752 oct_mach_info::float_format |
|
3340
|
2753 octave_stream::float_format (void) const |
|
2117
|
2754 { |
|
2317
|
2755 oct_mach_info::float_format retval = oct_mach_info::unknown; |
|
|
2756 |
|
|
2757 if (stream_ok ("float_format")) |
|
|
2758 retval = rep->float_format (); |
|
2117
|
2759 |
|
|
2760 return retval; |
|
|
2761 } |
|
|
2762 |
|
3536
|
2763 std::string |
|
2117
|
2764 octave_stream::mode_as_string (int mode) |
|
|
2765 { |
|
3523
|
2766 std::string retval = "???"; |
|
2117
|
2767 |
|
|
2768 switch (mode) |
|
|
2769 { |
|
3538
|
2770 case std::ios::in: |
|
2117
|
2771 retval = "r"; |
|
|
2772 break; |
|
|
2773 |
|
3538
|
2774 case std::ios::out: |
|
|
2775 case std::ios::out | std::ios::trunc: |
|
2117
|
2776 retval = "w"; |
|
|
2777 break; |
|
|
2778 |
|
3538
|
2779 case std::ios::out | std::ios::app: |
|
2117
|
2780 retval = "a"; |
|
|
2781 break; |
|
|
2782 |
|
3538
|
2783 case std::ios::in | std::ios::out: |
|
2117
|
2784 retval = "r+"; |
|
|
2785 break; |
|
|
2786 |
|
3538
|
2787 case std::ios::in | std::ios::out | std::ios::trunc: |
|
2117
|
2788 retval = "w+"; |
|
|
2789 break; |
|
|
2790 |
|
3538
|
2791 case std::ios::in | std::ios::out | std::ios::app: |
|
2117
|
2792 retval = "a+"; |
|
|
2793 break; |
|
|
2794 |
|
3552
|
2795 case std::ios::in | std::ios::binary: |
|
2117
|
2796 retval = "rb"; |
|
|
2797 break; |
|
|
2798 |
|
3552
|
2799 case std::ios::out | std::ios::binary: |
|
|
2800 case std::ios::out | std::ios::trunc | std::ios::binary: |
|
2117
|
2801 retval = "wb"; |
|
|
2802 break; |
|
|
2803 |
|
3552
|
2804 case std::ios::out | std::ios::app | std::ios::binary: |
|
2117
|
2805 retval = "ab"; |
|
|
2806 break; |
|
|
2807 |
|
3552
|
2808 case std::ios::in | std::ios::out | std::ios::binary: |
|
2117
|
2809 retval = "r+b"; |
|
|
2810 break; |
|
|
2811 |
|
3552
|
2812 case std::ios::in | std::ios::out | std::ios::trunc | std::ios::binary: |
|
2117
|
2813 retval = "w+b"; |
|
|
2814 break; |
|
|
2815 |
|
3552
|
2816 case std::ios::in | std::ios::out | std::ios::app | std::ios::binary: |
|
2117
|
2817 retval = "a+b"; |
|
|
2818 break; |
|
|
2819 |
|
|
2820 default: |
|
|
2821 break; |
|
|
2822 } |
|
|
2823 |
|
|
2824 return retval; |
|
|
2825 } |
|
|
2826 |
|
|
2827 void |
|
|
2828 octave_stream::invalid_stream_error (const char *op) const |
|
|
2829 { |
|
|
2830 ::error ("%s: attempt to use invalid I/O stream", op); |
|
|
2831 } |
|
|
2832 |
|
|
2833 octave_stream_list *octave_stream_list::instance = 0; |
|
|
2834 |
|
2926
|
2835 bool |
|
|
2836 octave_stream_list::instance_ok (void) |
|
|
2837 { |
|
|
2838 bool retval = true; |
|
|
2839 |
|
|
2840 if (! instance) |
|
|
2841 instance = new octave_stream_list (); |
|
|
2842 |
|
|
2843 if (! instance) |
|
|
2844 { |
|
|
2845 ::error ("unable to create stream list object!"); |
|
|
2846 |
|
|
2847 retval = false; |
|
|
2848 } |
|
|
2849 |
|
|
2850 return retval; |
|
|
2851 } |
|
|
2852 |
|
|
2853 octave_value |
|
3340
|
2854 octave_stream_list::insert (const octave_stream& os) |
|
2926
|
2855 { |
|
3340
|
2856 return (instance_ok ()) ? instance->do_insert (os) : octave_value (-1.0); |
|
2926
|
2857 } |
|
|
2858 |
|
3340
|
2859 octave_stream |
|
3523
|
2860 octave_stream_list::lookup (int fid, const std::string& who) |
|
2926
|
2861 { |
|
3341
|
2862 return (instance_ok ()) ? instance->do_lookup (fid, who) : octave_stream (); |
|
2926
|
2863 } |
|
|
2864 |
|
3340
|
2865 octave_stream |
|
3523
|
2866 octave_stream_list::lookup (const octave_value& fid, const std::string& who) |
|
2926
|
2867 { |
|
3341
|
2868 return (instance_ok ()) ? instance->do_lookup (fid, who) : octave_stream (); |
|
2926
|
2869 } |
|
|
2870 |
|
|
2871 int |
|
3523
|
2872 octave_stream_list::remove (int fid, const std::string& who) |
|
2926
|
2873 { |
|
3341
|
2874 return (instance_ok ()) ? instance->do_remove (fid, who) : -1; |
|
2926
|
2875 } |
|
|
2876 |
|
|
2877 int |
|
3523
|
2878 octave_stream_list::remove (const octave_value& fid, const std::string& who) |
|
2926
|
2879 { |
|
3341
|
2880 return (instance_ok ()) ? instance->do_remove (fid, who) : -1; |
|
2926
|
2881 } |
|
|
2882 |
|
|
2883 void |
|
|
2884 octave_stream_list::clear (void) |
|
|
2885 { |
|
|
2886 if (instance) |
|
|
2887 instance->do_clear (); |
|
|
2888 } |
|
|
2889 |
|
|
2890 string_vector |
|
|
2891 octave_stream_list::get_info (int fid) |
|
|
2892 { |
|
|
2893 return (instance_ok ()) ? instance->do_get_info (fid) : string_vector (); |
|
|
2894 } |
|
|
2895 |
|
|
2896 string_vector |
|
|
2897 octave_stream_list::get_info (const octave_value& fid) |
|
|
2898 { |
|
|
2899 return (instance_ok ()) ? instance->do_get_info (fid) : string_vector (); |
|
|
2900 } |
|
|
2901 |
|
3536
|
2902 std::string |
|
2926
|
2903 octave_stream_list::list_open_files (void) |
|
|
2904 { |
|
3523
|
2905 return (instance_ok ()) ? instance->do_list_open_files () : std::string (); |
|
2926
|
2906 } |
|
|
2907 |
|
|
2908 octave_value |
|
|
2909 octave_stream_list::open_file_numbers (void) |
|
|
2910 { |
|
|
2911 return (instance_ok ()) |
|
|
2912 ? instance->do_open_file_numbers () : octave_value (); |
|
|
2913 } |
|
|
2914 |
|
|
2915 int |
|
|
2916 octave_stream_list::get_file_number (const octave_value& fid) |
|
|
2917 { |
|
|
2918 return (instance_ok ()) ? instance->do_get_file_number (fid) : -1; |
|
|
2919 } |
|
|
2920 |
|
2902
|
2921 octave_value |
|
3340
|
2922 octave_stream_list::do_insert (const octave_stream& os) |
|
2117
|
2923 { |
|
3340
|
2924 octave_value retval; |
|
|
2925 |
|
2902
|
2926 int stream_number = -1; |
|
|
2927 |
|
3340
|
2928 // Insert item in first open slot, increasing size of list if |
|
|
2929 // necessary. |
|
|
2930 |
|
|
2931 for (int i = 0; i < curr_len; i++) |
|
2117
|
2932 { |
|
3340
|
2933 octave_stream tmp = list(i); |
|
|
2934 |
|
|
2935 if (! tmp) |
|
2117
|
2936 { |
|
3340
|
2937 list(i) = os; |
|
|
2938 stream_number = i; |
|
|
2939 break; |
|
2117
|
2940 } |
|
|
2941 } |
|
3340
|
2942 |
|
|
2943 if (stream_number < 0) |
|
|
2944 { |
|
|
2945 int total_len = list.length (); |
|
|
2946 |
|
|
2947 if (curr_len == total_len) |
|
|
2948 list.resize (total_len * 2); |
|
|
2949 |
|
|
2950 list(curr_len) = os; |
|
|
2951 stream_number = curr_len; |
|
|
2952 curr_len++; |
|
|
2953 } |
|
2117
|
2954 |
|
2902
|
2955 return octave_value (os, stream_number); |
|
2117
|
2956 } |
|
|
2957 |
|
3341
|
2958 static void |
|
3523
|
2959 gripe_invalid_file_id (int fid, const std::string& who) |
|
3341
|
2960 { |
|
|
2961 if (who.empty ()) |
|
|
2962 ::error ("invalid stream number = %d", fid); |
|
|
2963 else |
|
|
2964 ::error ("%s: invalid stream number = %d", who.c_str (), fid); |
|
|
2965 } |
|
|
2966 |
|
3340
|
2967 octave_stream |
|
3523
|
2968 octave_stream_list::do_lookup (int fid, const std::string& who) const |
|
2117
|
2969 { |
|
3340
|
2970 octave_stream retval; |
|
2117
|
2971 |
|
|
2972 if (fid >= 0 && fid < curr_len) |
|
3340
|
2973 retval = list(fid); |
|
3341
|
2974 else |
|
|
2975 gripe_invalid_file_id (fid, who); |
|
2117
|
2976 |
|
|
2977 return retval; |
|
|
2978 } |
|
|
2979 |
|
3340
|
2980 octave_stream |
|
3341
|
2981 octave_stream_list::do_lookup (const octave_value& fid, |
|
3523
|
2982 const std::string& who) const |
|
2117
|
2983 { |
|
3340
|
2984 octave_stream retval; |
|
2117
|
2985 |
|
|
2986 int i = get_file_number (fid); |
|
|
2987 |
|
|
2988 if (! error_state) |
|
3341
|
2989 retval = do_lookup (i, who); |
|
2117
|
2990 |
|
|
2991 return retval; |
|
|
2992 } |
|
|
2993 |
|
|
2994 int |
|
3523
|
2995 octave_stream_list::do_remove (int fid, const std::string& who) |
|
2117
|
2996 { |
|
|
2997 int retval = -1; |
|
|
2998 |
|
3531
|
2999 // Can't remove stdin (std::cin), stdout (std::cout), or stderr |
|
|
3000 // (std::cerr). |
|
2117
|
3001 |
|
|
3002 if (fid > 2 && fid < curr_len) |
|
|
3003 { |
|
3340
|
3004 octave_stream os = list(fid); |
|
2117
|
3005 |
|
3341
|
3006 if (os.is_valid ()) |
|
2117
|
3007 { |
|
3340
|
3008 os.close (); |
|
|
3009 list(fid) = octave_stream (); |
|
2117
|
3010 retval = 0; |
|
|
3011 } |
|
3341
|
3012 else |
|
|
3013 gripe_invalid_file_id (fid, who); |
|
2117
|
3014 } |
|
3341
|
3015 else |
|
|
3016 gripe_invalid_file_id (fid, who); |
|
2117
|
3017 |
|
|
3018 return retval; |
|
|
3019 } |
|
|
3020 |
|
|
3021 int |
|
3523
|
3022 octave_stream_list::do_remove (const octave_value& fid, const std::string& who) |
|
2117
|
3023 { |
|
|
3024 int retval = -1; |
|
|
3025 |
|
|
3026 int i = get_file_number (fid); |
|
|
3027 |
|
|
3028 if (! error_state) |
|
3341
|
3029 retval = do_remove (i, who); |
|
2117
|
3030 |
|
|
3031 return retval; |
|
|
3032 } |
|
|
3033 |
|
|
3034 void |
|
|
3035 octave_stream_list::do_clear (void) |
|
|
3036 { |
|
|
3037 // Do flush stdout and stderr. |
|
|
3038 |
|
3340
|
3039 list(0) . flush (); |
|
|
3040 list(1) . flush (); |
|
2117
|
3041 |
|
|
3042 // But don't delete them or stdin. |
|
|
3043 |
|
|
3044 for (int i = 3; i < curr_len; i++) |
|
3340
|
3045 list(i) = octave_stream (); |
|
2117
|
3046 } |
|
|
3047 |
|
|
3048 string_vector |
|
|
3049 octave_stream_list::do_get_info (int fid) const |
|
|
3050 { |
|
|
3051 string_vector retval; |
|
|
3052 |
|
3340
|
3053 octave_stream os = do_lookup (fid); |
|
2117
|
3054 |
|
3341
|
3055 if (os.is_valid ()) |
|
2117
|
3056 { |
|
|
3057 retval.resize (3); |
|
|
3058 |
|
3340
|
3059 retval(0) = os.name (); |
|
|
3060 retval(1) = octave_stream::mode_as_string (os.mode ()); |
|
|
3061 retval(2) = oct_mach_info::float_format_as_string (os.float_format ()); |
|
2117
|
3062 } |
|
|
3063 else |
|
3341
|
3064 ::error ("invalid file id = %d", fid); |
|
2117
|
3065 |
|
|
3066 return retval; |
|
|
3067 } |
|
|
3068 |
|
|
3069 string_vector |
|
|
3070 octave_stream_list::do_get_info (const octave_value& fid) const |
|
|
3071 { |
|
|
3072 string_vector retval; |
|
|
3073 |
|
|
3074 int conv_err = 0; |
|
|
3075 |
|
|
3076 int int_fid = convert_to_valid_int (fid, conv_err); |
|
|
3077 |
|
|
3078 if (! conv_err) |
|
|
3079 retval = do_get_info (int_fid); |
|
|
3080 else |
|
2915
|
3081 ::error ("file id must be a file object or integer value"); |
|
2117
|
3082 |
|
|
3083 return retval; |
|
|
3084 } |
|
|
3085 |
|
3536
|
3086 std::string |
|
2117
|
3087 octave_stream_list::do_list_open_files (void) const |
|
|
3088 { |
|
3523
|
3089 std::string retval; |
|
2117
|
3090 |
|
|
3091 // XXX FIXME XXX -- this should probably be converted to use sstream |
|
|
3092 // when that is available. |
|
3523
|
3093 std::ostrstream buf; |
|
2117
|
3094 |
|
|
3095 buf << "\n" |
|
|
3096 << " number mode arch name\n" |
|
|
3097 << " ------ ---- ---- ----\n"; |
|
|
3098 |
|
|
3099 for (int i = 0; i < curr_len; i++) |
|
|
3100 { |
|
3340
|
3101 octave_stream os = list(i); |
|
2117
|
3102 |
|
|
3103 if (os) |
|
|
3104 { |
|
3523
|
3105 std::string mode = octave_stream::mode_as_string (os.mode ()); |
|
|
3106 |
|
|
3107 std::string arch = |
|
3340
|
3108 oct_mach_info::float_format_as_string (os.float_format ()); |
|
|
3109 |
|
3523
|
3110 std::string name = os.name (); |
|
2117
|
3111 |
|
3013
|
3112 buf << " " |
|
3559
|
3113 << std::setiosflags (std::ios::right) |
|
|
3114 << std::setw (4) << i << " " |
|
|
3115 << std::setiosflags (std::ios::left) |
|
|
3116 << std::setw (3) << mode.c_str () << " " |
|
|
3117 << std::setw (9) << arch.c_str () << " " |
|
3013
|
3118 << name << "\n"; |
|
2117
|
3119 } |
|
|
3120 } |
|
|
3121 |
|
3538
|
3122 buf << "\n" << std::ends; |
|
2117
|
3123 |
|
|
3124 char *tmp = buf.str (); |
|
|
3125 |
|
|
3126 retval = tmp; |
|
|
3127 |
|
|
3128 delete [] tmp; |
|
|
3129 |
|
|
3130 return retval; |
|
|
3131 } |
|
|
3132 |
|
|
3133 octave_value |
|
|
3134 octave_stream_list::do_open_file_numbers (void) const |
|
|
3135 { |
|
|
3136 Matrix retval (1, curr_len, 0.0); |
|
|
3137 |
|
|
3138 int num_open = 0; |
|
|
3139 |
|
|
3140 // Skip stdin, stdout, and stderr. |
|
|
3141 |
|
|
3142 for (int i = 3; i < curr_len; i++) |
|
|
3143 { |
|
3340
|
3144 if (list(i)) |
|
2117
|
3145 retval (0, num_open++) = i; |
|
|
3146 } |
|
|
3147 |
|
|
3148 retval.resize ((num_open > 0), num_open); |
|
|
3149 |
|
|
3150 return retval; |
|
|
3151 } |
|
|
3152 |
|
|
3153 int |
|
2609
|
3154 octave_stream_list::do_get_file_number (const octave_value& fid) const |
|
2117
|
3155 { |
|
|
3156 int retval = -1; |
|
|
3157 |
|
|
3158 if (fid.is_string ()) |
|
|
3159 { |
|
3523
|
3160 std::string nm = fid.string_value (); |
|
2117
|
3161 |
|
3531
|
3162 // stdin (std::cin), stdout (std::cout), and stderr (std::cerr) |
|
|
3163 // are unnamed. |
|
2117
|
3164 |
|
|
3165 for (int i = 3; i < curr_len; i++) |
|
|
3166 { |
|
3340
|
3167 octave_stream os = list(i); |
|
|
3168 |
|
|
3169 if (os && os.name () == nm) |
|
2117
|
3170 { |
|
|
3171 retval = i; |
|
|
3172 break; |
|
|
3173 } |
|
|
3174 } |
|
|
3175 } |
|
|
3176 else |
|
|
3177 { |
|
|
3178 int conv_err = 0; |
|
|
3179 |
|
|
3180 int int_fid = convert_to_valid_int (fid, conv_err); |
|
|
3181 |
|
|
3182 if (conv_err) |
|
3523
|
3183 ::error ("file id must be a file object, std::string, or integer value"); |
|
2117
|
3184 else |
|
|
3185 retval = int_fid; |
|
|
3186 } |
|
|
3187 |
|
|
3188 return retval; |
|
|
3189 } |
|
|
3190 |
|
|
3191 /* |
|
|
3192 ;;; Local Variables: *** |
|
|
3193 ;;; mode: C++ *** |
|
|
3194 ;;; End: *** |
|
|
3195 */ |
