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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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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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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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2117
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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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3640
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270 |
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271 delete [] text; |
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2117
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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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3640
|
425 int beg_idx = -1; |
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426 int end_idx = -1; |
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427 |
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2117
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428 if (s[i] == '%') |
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3640
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429 { |
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430 type = '%'; |
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431 *buf << s[i++]; |
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432 } |
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2117
|
433 else |
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434 { |
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435 type = s[i]; |
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436 |
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437 if (s[i] == '[') |
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438 { |
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439 *buf << s[i++]; |
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440 |
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441 if (i < n) |
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442 { |
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3483
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443 beg_idx = i; |
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444 |
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2117
|
445 if (s[i] == '^') |
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446 { |
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447 type = '^'; |
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448 *buf << s[i++]; |
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3483
|
449 |
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450 if (i < n) |
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451 { |
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452 beg_idx = i; |
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453 |
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454 if (s[i] == ']') |
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455 *buf << s[i++]; |
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456 } |
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2117
|
457 } |
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458 else if (s[i] == ']') |
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459 *buf << s[i++]; |
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460 } |
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461 |
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|
462 while (i < n && s[i] != ']') |
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463 *buf << s[i++]; |
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464 |
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465 if (i < n && s[i] == ']') |
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3483
|
466 { |
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467 end_idx = i-1; |
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468 *buf << s[i++]; |
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469 } |
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2117
|
470 |
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471 if (s[i-1] != ']') |
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472 retval = nconv = -1; |
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473 } |
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474 else |
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2215
|
475 *buf << s[i++]; |
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3640
|
476 } |
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477 |
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|
478 nconv++; |
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479 |
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|
480 if (nconv > 0) |
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|
481 { |
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|
482 if (beg_idx >= 0 && end_idx >= 0) |
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|
483 char_class = expand_char_class (s.substr (beg_idx, |
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|
484 end_idx - beg_idx + 1)); |
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|
485 |
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|
486 add_elt_to_list (width, discard, type, modifier, num_elts, char_class); |
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2117
|
487 } |
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488 |
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|
489 return retval; |
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|
490 } |
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|
491 |
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|
492 void |
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|
493 scanf_format_list::printme (void) const |
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|
494 { |
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|
495 int n = list.length (); |
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|
496 |
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|
497 for (int i = 0; i < n; i++) |
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|
498 { |
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3340
|
499 scanf_format_elt *elt = list(i); |
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2117
|
500 |
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3531
|
501 std::cerr |
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|
502 << "width: " << elt->width << "\n" |
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|
503 << "discard: " << elt->discard << "\n" |
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|
504 << "type: "; |
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3483
|
505 |
|
|
506 if (elt->type == scanf_format_elt::literal_conversion) |
|
3531
|
507 std::cerr << "literal text\n"; |
|
3483
|
508 else if (elt->type == scanf_format_elt::whitespace_conversion) |
|
3531
|
509 std::cerr << "whitespace\n"; |
|
3483
|
510 else |
|
3531
|
511 std::cerr << elt->type << "\n"; |
|
|
512 |
|
|
513 std::cerr |
|
|
514 << "modifier: " << elt->modifier << "\n" |
|
|
515 << "char_class: `" << undo_string_escapes (elt->char_class) << "'\n" |
|
|
516 << "text: `" << undo_string_escapes (elt->text) << "'\n\n"; |
|
2117
|
517 } |
|
|
518 } |
|
|
519 |
|
|
520 bool |
|
|
521 scanf_format_list::all_character_conversions (void) |
|
|
522 { |
|
|
523 int n = list.length (); |
|
|
524 |
|
|
525 if (n > 0) |
|
|
526 { |
|
|
527 for (int i = 0; i < n; i++) |
|
|
528 { |
|
3340
|
529 scanf_format_elt *elt = list(i); |
|
2117
|
530 |
|
|
531 switch (elt->type) |
|
|
532 { |
|
3483
|
533 case 'c': case 's': case '%': case '[': case '^': |
|
|
534 case scanf_format_elt::literal_conversion: |
|
|
535 case scanf_format_elt::whitespace_conversion: |
|
2117
|
536 break; |
|
|
537 |
|
|
538 default: |
|
|
539 return false; |
|
|
540 break; |
|
|
541 } |
|
|
542 } |
|
|
543 |
|
|
544 return true; |
|
|
545 } |
|
|
546 else |
|
|
547 return false; |
|
|
548 } |
|
|
549 |
|
|
550 bool |
|
|
551 scanf_format_list::all_numeric_conversions (void) |
|
|
552 { |
|
|
553 int n = list.length (); |
|
|
554 |
|
|
555 if (n > 0) |
|
|
556 { |
|
|
557 for (int i = 0; i < n; i++) |
|
|
558 { |
|
3340
|
559 scanf_format_elt *elt = list(i); |
|
2117
|
560 |
|
|
561 switch (elt->type) |
|
|
562 { |
|
|
563 case 'd': case 'i': case 'o': case 'u': case 'x': |
|
|
564 case 'e': case 'f': case 'g': |
|
|
565 break; |
|
|
566 |
|
|
567 default: |
|
|
568 return false; |
|
|
569 break; |
|
|
570 } |
|
|
571 } |
|
|
572 |
|
|
573 return true; |
|
|
574 } |
|
|
575 else |
|
|
576 return false; |
|
|
577 } |
|
|
578 |
|
|
579 // Ugh again. |
|
|
580 |
|
3523
|
581 printf_format_list::printf_format_list (const std::string& s) |
|
2117
|
582 : nconv (0), curr_idx (0), list (16), buf (0) |
|
|
583 { |
|
|
584 int num_elts = 0; |
|
|
585 |
|
|
586 int n = s.length (); |
|
|
587 |
|
|
588 int i = 0; |
|
|
589 |
|
|
590 int args = 0; |
|
3640
|
591 string flags; |
|
|
592 int fw = 0; |
|
|
593 int prec = 0; |
|
2117
|
594 char modifier = '\0'; |
|
|
595 char type = '\0'; |
|
|
596 |
|
|
597 bool have_more = true; |
|
3640
|
598 bool empty_buf = true; |
|
2117
|
599 |
|
|
600 while (i < n) |
|
|
601 { |
|
|
602 have_more = true; |
|
|
603 |
|
|
604 if (! buf) |
|
3640
|
605 { |
|
|
606 buf = new std::ostrstream (); |
|
|
607 empty_buf = true; |
|
|
608 } |
|
2117
|
609 |
|
|
610 switch (s[i]) |
|
|
611 { |
|
|
612 case '%': |
|
3640
|
613 { |
|
|
614 if (empty_buf) |
|
|
615 { |
|
|
616 process_conversion (s, i, n, args, flags, fw, prec, |
|
|
617 type, modifier, num_elts); |
|
|
618 |
|
|
619 have_more = (buf != 0); |
|
|
620 } |
|
|
621 else |
|
|
622 add_elt_to_list (args, flags, fw, prec, type, modifier, |
|
|
623 num_elts); |
|
|
624 } |
|
2117
|
625 break; |
|
|
626 |
|
|
627 default: |
|
3640
|
628 { |
|
|
629 args = 0; |
|
|
630 flags = ""; |
|
|
631 fw = 0; |
|
|
632 prec = 0; |
|
|
633 modifier = '\0'; |
|
|
634 type = '\0'; |
|
|
635 *buf << s[i++]; |
|
|
636 empty_buf = false; |
|
|
637 } |
|
2117
|
638 break; |
|
|
639 } |
|
|
640 |
|
|
641 if (nconv < 0) |
|
|
642 { |
|
|
643 have_more = false; |
|
|
644 break; |
|
|
645 } |
|
|
646 } |
|
|
647 |
|
|
648 if (have_more) |
|
3640
|
649 add_elt_to_list (args, flags, fw, prec, type, modifier, num_elts); |
|
2117
|
650 |
|
|
651 list.resize (num_elts); |
|
|
652 |
|
|
653 delete buf; |
|
|
654 } |
|
|
655 |
|
|
656 printf_format_list::~printf_format_list (void) |
|
|
657 { |
|
|
658 int n = list.length (); |
|
|
659 |
|
|
660 for (int i = 0; i < n; i++) |
|
|
661 { |
|
3340
|
662 printf_format_elt *elt = list(i); |
|
2117
|
663 delete elt; |
|
|
664 } |
|
|
665 } |
|
|
666 |
|
|
667 void |
|
3640
|
668 printf_format_list::add_elt_to_list (int args, const std::string& flags, |
|
|
669 int fw, int prec, char type, |
|
|
670 char modifier, int& num_elts) |
|
2117
|
671 { |
|
|
672 if (buf) |
|
|
673 { |
|
3538
|
674 *buf << std::ends; |
|
2117
|
675 |
|
|
676 char *text = buf->str (); |
|
|
677 |
|
|
678 if (text) |
|
|
679 { |
|
|
680 if (*text) |
|
|
681 { |
|
|
682 printf_format_elt *elt |
|
3640
|
683 = new printf_format_elt (text, args, fw, prec, flags, |
|
|
684 type, modifier); |
|
2117
|
685 |
|
|
686 if (num_elts == list.length ()) |
|
|
687 list.resize (2 * num_elts); |
|
|
688 |
|
3340
|
689 list(num_elts++) = elt; |
|
2117
|
690 } |
|
3640
|
691 |
|
|
692 delete [] text; |
|
2117
|
693 } |
|
|
694 |
|
|
695 delete buf; |
|
|
696 buf = 0; |
|
|
697 } |
|
|
698 } |
|
|
699 |
|
|
700 void |
|
3640
|
701 printf_format_list::process_conversion |
|
|
702 (const std::string& s, int& i, int n, int& args, std::string& flags, |
|
|
703 int& fw, int& prec, char& modifier, char& type, int& num_elts) |
|
2117
|
704 { |
|
|
705 args = 0; |
|
3640
|
706 flags = ""; |
|
|
707 fw = 0; |
|
|
708 prec = 0; |
|
2117
|
709 modifier = '\0'; |
|
|
710 type = '\0'; |
|
|
711 |
|
|
712 *buf << s[i++]; |
|
|
713 |
|
|
714 bool next = false; |
|
|
715 |
|
|
716 while (i < n) |
|
|
717 { |
|
|
718 switch (s[i]) |
|
|
719 { |
|
|
720 case '-': case '+': case ' ': case '0': case '#': |
|
3640
|
721 flags += s[i]; |
|
2117
|
722 *buf << s[i++]; |
|
|
723 break; |
|
|
724 |
|
|
725 default: |
|
|
726 next = true; |
|
|
727 break; |
|
|
728 } |
|
|
729 |
|
|
730 if (next) |
|
|
731 break; |
|
|
732 } |
|
|
733 |
|
|
734 if (i < n) |
|
|
735 { |
|
|
736 if (s[i] == '*') |
|
|
737 { |
|
3640
|
738 fw = -1; |
|
2117
|
739 args++; |
|
|
740 *buf << s[i++]; |
|
|
741 } |
|
|
742 else |
|
|
743 { |
|
3640
|
744 if (isdigit (s[i])) |
|
|
745 { |
|
|
746 int n = 0; |
|
|
747 string tmp = s.substr (i); |
|
|
748 sscanf (tmp.c_str (), "%d%n", &fw, &n); |
|
|
749 } |
|
|
750 |
|
2117
|
751 while (i < n && isdigit (s[i])) |
|
|
752 *buf << s[i++]; |
|
|
753 } |
|
|
754 } |
|
|
755 |
|
|
756 if (i < n && s[i] == '.') |
|
|
757 { |
|
|
758 *buf << s[i++]; |
|
|
759 |
|
|
760 if (i < n) |
|
|
761 { |
|
|
762 if (s[i] == '*') |
|
|
763 { |
|
3640
|
764 prec = -1; |
|
2117
|
765 args++; |
|
|
766 *buf << s[i++]; |
|
|
767 } |
|
|
768 else |
|
|
769 { |
|
3640
|
770 if (isdigit (s[i])) |
|
|
771 { |
|
|
772 int n = 0; |
|
|
773 string tmp = s.substr (i); |
|
|
774 sscanf (tmp.c_str (), "%d%n", &prec, &n); |
|
|
775 } |
|
|
776 |
|
2117
|
777 while (i < n && isdigit (s[i])) |
|
|
778 *buf << s[i++]; |
|
|
779 } |
|
|
780 } |
|
|
781 } |
|
|
782 |
|
|
783 if (i < n) |
|
|
784 { |
|
|
785 switch (s[i]) |
|
|
786 { |
|
|
787 case 'h': case 'l': case 'L': |
|
|
788 modifier = s[i]; |
|
|
789 *buf << s[i++]; |
|
|
790 break; |
|
|
791 |
|
|
792 default: |
|
|
793 break; |
|
|
794 } |
|
|
795 } |
|
|
796 |
|
|
797 if (i < n) |
|
3640
|
798 finish_conversion (s, i, args, flags, fw, prec, modifier, type, num_elts); |
|
2117
|
799 else |
|
|
800 nconv = -1; |
|
|
801 } |
|
|
802 |
|
|
803 void |
|
3640
|
804 printf_format_list::finish_conversion |
|
|
805 (const std::string& s, int& i, int args, const std::string& flags, |
|
|
806 int fw, int prec, char modifier, char& type, int& num_elts) |
|
2117
|
807 |
|
|
808 { |
|
|
809 switch (s[i]) |
|
|
810 { |
|
|
811 case 'd': case 'i': case 'o': case 'x': case 'X': |
|
|
812 case 'u': case 'c': |
|
|
813 if (modifier == 'L') |
|
|
814 { |
|
|
815 nconv = -1; |
|
|
816 break; |
|
|
817 } |
|
|
818 goto fini; |
|
|
819 |
|
|
820 case 'f': case 'e': case 'E': case 'g': case 'G': |
|
|
821 if (modifier == 'h' || modifier == 'l') |
|
|
822 { |
|
|
823 nconv = -1; |
|
|
824 break; |
|
|
825 } |
|
|
826 goto fini; |
|
|
827 |
|
|
828 case 's': case 'p': case '%': |
|
|
829 if (modifier != '\0') |
|
|
830 { |
|
|
831 nconv = -1; |
|
|
832 break; |
|
|
833 } |
|
|
834 goto fini; |
|
|
835 |
|
|
836 fini: |
|
|
837 |
|
3640
|
838 type = s[i]; |
|
|
839 |
|
|
840 *buf << s[i++]; |
|
|
841 |
|
|
842 if (type != '%' || args != 0) |
|
|
843 nconv++; |
|
|
844 |
|
|
845 if (type != '%') |
|
|
846 args++; |
|
|
847 |
|
|
848 add_elt_to_list (args, flags, fw, prec, type, modifier, num_elts); |
|
|
849 |
|
2117
|
850 break; |
|
|
851 |
|
|
852 default: |
|
|
853 nconv = -1; |
|
|
854 break; |
|
|
855 } |
|
|
856 } |
|
|
857 |
|
|
858 void |
|
|
859 printf_format_list::printme (void) const |
|
|
860 { |
|
|
861 int n = list.length (); |
|
|
862 |
|
|
863 for (int i = 0; i < n; i++) |
|
|
864 { |
|
3340
|
865 printf_format_elt *elt = list(i); |
|
2117
|
866 |
|
3640
|
867 std::cerr |
|
|
868 << "args: " << elt->args << "\n" |
|
|
869 << "flags: `" << elt->flags << "'\n" |
|
|
870 << "width: " << elt->fw << "\n" |
|
|
871 << "prec: " << elt->prec << "\n" |
|
|
872 << "type: `" << elt->type << "'\n" |
|
|
873 << "modifier: `" << elt->modifier << "'\n" |
|
|
874 << "text: `" << undo_string_escapes (elt->text) << "'\n\n"; |
|
2117
|
875 } |
|
|
876 } |
|
|
877 |
|
3145
|
878 int |
|
3148
|
879 octave_base_stream::file_number (void) |
|
3145
|
880 { |
|
|
881 // Kluge alert! |
|
|
882 |
|
|
883 if (name () == "stdin") |
|
|
884 return 0; |
|
|
885 |
|
|
886 if (name () == "stdout") |
|
|
887 return 1; |
|
|
888 |
|
|
889 if (name () == "stderr") |
|
|
890 return 2; |
|
|
891 |
|
|
892 int retval = -1; |
|
|
893 |
|
3523
|
894 std::istream *is = input_stream (); |
|
|
895 std::ostream *os = output_stream (); |
|
3145
|
896 |
|
3553
|
897 int i_fid = is ? ((std::filebuf *) (is->rdbuf ()))->fd () : -1; |
|
|
898 int o_fid = os ? ((std::filebuf *) (os->rdbuf ()))->fd () : -1; |
|
3145
|
899 |
|
|
900 if (i_fid >= 0) |
|
|
901 { |
|
|
902 if (o_fid >= 0) |
|
|
903 retval = (i_fid == o_fid) ? i_fid : -1; |
|
|
904 else |
|
|
905 retval = i_fid; |
|
|
906 } |
|
|
907 else if (o_fid >= 0) |
|
|
908 retval = o_fid; |
|
|
909 |
|
|
910 return retval; |
|
|
911 } |
|
|
912 |
|
2117
|
913 void |
|
3523
|
914 octave_base_stream::error (const std::string& msg) |
|
2117
|
915 { |
|
|
916 fail = true; |
|
|
917 errmsg = msg; |
|
|
918 } |
|
|
919 |
|
|
920 void |
|
|
921 octave_base_stream::clear (void) |
|
|
922 { |
|
|
923 fail = false; |
|
|
924 errmsg = ""; |
|
|
925 } |
|
|
926 |
|
|
927 // Functions that are defined for all input streams (input streams |
|
|
928 // are those that define is). |
|
|
929 |
|
3536
|
930 std::string |
|
2117
|
931 octave_base_stream::do_gets (int max_len, bool& err, |
|
|
932 bool strip_newline, const char *fcn) |
|
|
933 { |
|
3523
|
934 std::string retval; |
|
2117
|
935 |
|
|
936 err = false; |
|
|
937 |
|
3523
|
938 std::istream *isp = input_stream (); |
|
2117
|
939 |
|
|
940 if (isp) |
|
|
941 { |
|
3523
|
942 std::istream& is = *isp; |
|
2117
|
943 |
|
|
944 // XXX FIXME XXX -- this should probably be converted to use |
|
|
945 // sstream when that is available. |
|
3523
|
946 std::ostrstream buf; |
|
2117
|
947 |
|
|
948 int c = 0; |
|
3553
|
949 int char_count = 0; |
|
2117
|
950 int newline_stripped = 0; |
|
|
951 |
|
|
952 while (is && (c = is.get ()) != EOF) |
|
|
953 { |
|
3553
|
954 char_count++; |
|
2117
|
955 |
|
|
956 if (c == '\n') |
|
|
957 { |
|
|
958 if (! strip_newline) |
|
|
959 buf << (char) c; |
|
|
960 else |
|
|
961 newline_stripped = 1; |
|
|
962 |
|
|
963 break; |
|
|
964 } |
|
|
965 else |
|
|
966 buf << (char) c; |
|
|
967 |
|
3553
|
968 if (max_len > 0 && char_count == max_len) |
|
2117
|
969 break; |
|
|
970 } |
|
|
971 |
|
|
972 if (is.fail ()) |
|
|
973 { |
|
|
974 err = true; |
|
3523
|
975 std::string msg = fcn; |
|
2117
|
976 msg.append (": read error"); |
|
|
977 error (msg); |
|
|
978 } |
|
3553
|
979 else if (char_count == 0 && is.eof ()) |
|
2117
|
980 { |
|
|
981 err = true; |
|
3523
|
982 std::string msg = fcn; |
|
2117
|
983 msg.append (": at end of file"); |
|
|
984 error (msg); |
|
|
985 } |
|
|
986 else |
|
|
987 { |
|
3538
|
988 buf << std::ends; |
|
2117
|
989 char *tmp = buf.str (); |
|
|
990 retval = tmp; |
|
|
991 delete [] tmp; |
|
|
992 } |
|
|
993 } |
|
|
994 else |
|
|
995 { |
|
|
996 err = true; |
|
|
997 invalid_operation (fcn, "reading"); |
|
|
998 } |
|
|
999 |
|
|
1000 return retval; |
|
|
1001 } |
|
|
1002 |
|
3536
|
1003 std::string |
|
2117
|
1004 octave_base_stream::getl (int max_len, bool& err) |
|
|
1005 { |
|
|
1006 return do_gets (max_len, err, true, "fgetl"); |
|
|
1007 } |
|
|
1008 |
|
3536
|
1009 std::string |
|
2117
|
1010 octave_base_stream::gets (int max_len, bool& err) |
|
|
1011 { |
|
|
1012 return do_gets (max_len, err, false, "fgets"); |
|
|
1013 } |
|
|
1014 |
|
|
1015 octave_value |
|
2317
|
1016 octave_base_stream::read (const Matrix& size, |
|
|
1017 oct_data_conv::data_type dt, int skip, |
|
3553
|
1018 oct_mach_info::float_format ffmt, |
|
|
1019 int& char_count) |
|
2117
|
1020 { |
|
2317
|
1021 Matrix retval; |
|
|
1022 |
|
3553
|
1023 char_count = 0; |
|
2117
|
1024 |
|
3523
|
1025 std::istream *isp = input_stream (); |
|
2117
|
1026 |
|
|
1027 if (isp) |
|
|
1028 { |
|
3523
|
1029 std::istream& is = *isp; |
|
2117
|
1030 |
|
|
1031 int nr = -1; |
|
|
1032 int nc = -1; |
|
|
1033 |
|
3268
|
1034 bool ignore; |
|
|
1035 |
|
|
1036 get_size (size, nr, nc, ignore, "fread"); |
|
2117
|
1037 |
|
|
1038 if (! error_state) |
|
2317
|
1039 { |
|
3553
|
1040 if (ffmt == oct_mach_info::unknown) |
|
|
1041 ffmt = float_format (); |
|
|
1042 |
|
|
1043 int tmp = retval.read (is, nr, nc, dt, skip, ffmt); |
|
2317
|
1044 |
|
|
1045 if (tmp < 0) |
|
|
1046 error ("fread: read error"); |
|
|
1047 else |
|
3553
|
1048 char_count = tmp; |
|
2317
|
1049 } |
|
2117
|
1050 } |
|
|
1051 else |
|
|
1052 invalid_operation ("fread", "reading"); |
|
|
1053 |
|
|
1054 return retval; |
|
|
1055 } |
|
|
1056 |
|
3636
|
1057 #if defined (__GNUG__) |
|
|
1058 |
|
3640
|
1059 #define OCTAVE_SCAN(is, fmt, arg) is.scan ((fmt).text, arg) |
|
3636
|
1060 |
|
|
1061 #else |
|
|
1062 |
|
3640
|
1063 #define OCTAVE_SCAN(is, fmt, arg) octave_scan (is, fmt, arg) |
|
3636
|
1064 |
|
|
1065 template <class T> |
|
|
1066 std::istream& |
|
|
1067 octave_scan (std::istream& is, const scanf_format_elt& fmt, T valptr) |
|
|
1068 { |
|
3640
|
1069 // Someone else who cares will have to fix this code. I refuse to |
|
|
1070 // waste my time working on it when a reasonable alternative like |
|
3637
|
1071 // istream::scan exists in the GNU iostream library. --jwe |
|
|
1072 |
|
|
1073 error ("formatted input only works when Octave is compiled with G++"); |
|
3638
|
1074 |
|
3639
|
1075 is.setstate (std::ios::failbit); |
|
|
1076 |
|
3638
|
1077 return is; |
|
3636
|
1078 } |
|
|
1079 |
|
|
1080 template std::istream& |
|
|
1081 octave_scan (std::istream&, const scanf_format_elt&, char*); |
|
|
1082 |
|
|
1083 template std::istream& |
|
|
1084 octave_scan (std::istream&, const scanf_format_elt&, int*); |
|
|
1085 |
|
|
1086 template std::istream& |
|
|
1087 octave_scan (std::istream&, const scanf_format_elt&, long int*); |
|
|
1088 |
|
|
1089 template std::istream& |
|
|
1090 octave_scan (std::istream&, const scanf_format_elt&, short int*); |
|
|
1091 |
|
|
1092 #if 0 |
|
|
1093 template std::istream& |
|
|
1094 octave_scan (std::istream&, const scanf_format_elt&, float*); |
|
|
1095 #endif |
|
|
1096 |
|
|
1097 template std::istream& |
|
|
1098 octave_scan (std::istream&, const scanf_format_elt&, double*); |
|
|
1099 |
|
|
1100 #endif |
|
|
1101 |
|
2572
|
1102 template <class T> |
|
|
1103 void |
|
3636
|
1104 do_scanf_conv (std::istream& is, const scanf_format_elt& fmt, |
|
|
1105 T valptr, Matrix& mval, double *data, int& idx, |
|
|
1106 int& conversion_count, int nr, int max_size, |
|
|
1107 bool discard) |
|
2572
|
1108 { |
|
3640
|
1109 OCTAVE_SCAN (is, fmt, valptr); |
|
2572
|
1110 |
|
|
1111 if (is) |
|
|
1112 { |
|
|
1113 if (idx == max_size && ! discard) |
|
|
1114 { |
|
|
1115 max_size *= 2; |
|
|
1116 |
|
|
1117 if (nr > 0) |
|
|
1118 mval.resize (nr, max_size / nr, 0.0); |
|
|
1119 else |
|
|
1120 mval.resize (max_size, 1, 0.0); |
|
|
1121 |
|
|
1122 data = mval.fortran_vec (); |
|
|
1123 } |
|
|
1124 |
|
|
1125 if (! discard) |
|
3268
|
1126 { |
|
3559
|
1127 conversion_count++; |
|
3268
|
1128 data[idx++] = *(valptr); |
|
|
1129 } |
|
2572
|
1130 } |
|
|
1131 } |
|
|
1132 |
|
|
1133 template void |
|
3636
|
1134 do_scanf_conv (std::istream&, const scanf_format_elt&, int*, Matrix&, |
|
|
1135 double*, int&, int&, int, int, bool); |
|
2572
|
1136 |
|
3233
|
1137 template void |
|
3636
|
1138 do_scanf_conv (std::istream&, const scanf_format_elt&, long int*, |
|
|
1139 Matrix&, double*, int&, int&, int, int, bool); |
|
3233
|
1140 |
|
|
1141 template void |
|
3636
|
1142 do_scanf_conv (std::istream&, const scanf_format_elt&, short int*, |
|
|
1143 Matrix&, double*, int&, int&, int, int, bool); |
|
3233
|
1144 |
|
2600
|
1145 #if 0 |
|
2572
|
1146 template void |
|
3636
|
1147 do_scanf_conv (std::istream&, const scanf_format_elt&, float*, |
|
|
1148 Matrix&, double*, int&, int&, int, int, bool); |
|
2600
|
1149 #endif |
|
2572
|
1150 |
|
|
1151 template void |
|
3636
|
1152 do_scanf_conv (std::istream&, const scanf_format_elt&, double*, |
|
|
1153 Matrix&, double*, int&, int&, int, int, bool); |
|
2572
|
1154 |
|
3483
|
1155 #define DO_WHITESPACE_CONVERSION() \ |
|
|
1156 do \ |
|
|
1157 { \ |
|
|
1158 int c = EOF; \ |
|
|
1159 \ |
|
|
1160 while (is && (c = is.get ()) != EOF && isspace (c)) \ |
|
|
1161 /* skip whitespace */; \ |
|
|
1162 \ |
|
|
1163 if (c != EOF) \ |
|
|
1164 is.putback (c); \ |
|
|
1165 } \ |
|
|
1166 while (0) |
|
|
1167 |
|
|
1168 #define DO_LITERAL_CONVERSION() \ |
|
|
1169 do \ |
|
|
1170 { \ |
|
|
1171 int c = EOF; \ |
|
|
1172 \ |
|
|
1173 int n = strlen (fmt); \ |
|
|
1174 int i = 0; \ |
|
|
1175 \ |
|
|
1176 while (i < n && is && (c = is.get ()) != EOF) \ |
|
|
1177 { \ |
|
|
1178 if (c == fmt[i]) \ |
|
|
1179 { \ |
|
|
1180 i++; \ |
|
|
1181 continue; \ |
|
|
1182 } \ |
|
|
1183 else \ |
|
|
1184 { \ |
|
|
1185 is.putback (c); \ |
|
|
1186 break; \ |
|
|
1187 } \ |
|
|
1188 } \ |
|
|
1189 \ |
|
|
1190 if (i != n) \ |
|
3538
|
1191 is.setstate (std::ios::failbit); \ |
|
3483
|
1192 } \ |
|
|
1193 while (0) |
|
|
1194 |
|
3640
|
1195 #define DO_PCT_CONVERSION() \ |
|
|
1196 do \ |
|
|
1197 { \ |
|
|
1198 int c = is.get (); \ |
|
|
1199 \ |
|
|
1200 if (c != EOF) \ |
|
|
1201 { \ |
|
|
1202 if (c != '%') \ |
|
|
1203 { \ |
|
|
1204 is.putback (c); \ |
|
|
1205 is.setstate (std::ios::failbit); \ |
|
|
1206 } \ |
|
|
1207 } \ |
|
|
1208 else \ |
|
|
1209 is.setstate (std::ios::failbit); \ |
|
|
1210 } \ |
|
|
1211 while (0) |
|
|
1212 |
|
3483
|
1213 #define BEGIN_C_CONVERSION() \ |
|
3538
|
1214 is.unsetf (std::ios::skipws); \ |
|
3483
|
1215 \ |
|
|
1216 int width = elt->width ? elt->width : 1; \ |
|
|
1217 \ |
|
|
1218 char *tmp = new char[width + 1]; \ |
|
|
1219 \ |
|
|
1220 int c = EOF; \ |
|
|
1221 int n = 0; \ |
|
|
1222 \ |
|
|
1223 while (is && n < width && (c = is.get ()) != EOF) \ |
|
|
1224 tmp[n++] = (char) c; \ |
|
|
1225 \ |
|
|
1226 tmp[n] = '\0' |
|
|
1227 |
|
|
1228 // For a `%s' format, skip initial whitespace and then read until the |
|
|
1229 // next whitespace character. |
|
|
1230 #define BEGIN_S_CONVERSION() \ |
|
|
1231 int width = elt->width; \ |
|
|
1232 \ |
|
|
1233 char *tmp = 0; \ |
|
|
1234 \ |
|
|
1235 do \ |
|
|
1236 { \ |
|
|
1237 if (width) \ |
|
|
1238 { \ |
|
|
1239 tmp = new char [width+1]; \ |
|
|
1240 \ |
|
3640
|
1241 OCTAVE_SCAN (is, *elt, tmp); \ |
|
3483
|
1242 \ |
|
|
1243 tmp[width] = '\0'; \ |
|
|
1244 } \ |
|
|
1245 else \ |
|
|
1246 { \ |
|
3548
|
1247 std::ostrstream buf; \ |
|
3483
|
1248 \ |
|
|
1249 int c = EOF; \ |
|
|
1250 \ |
|
|
1251 while (is && (c = is.get ()) != EOF && isspace (c)) \ |
|
|
1252 /* skip leading whitespace */; \ |
|
|
1253 \ |
|
|
1254 if (is && c != EOF) \ |
|
|
1255 buf << (char) c; \ |
|
|
1256 \ |
|
|
1257 while (is && (c = is.get ()) != EOF && ! isspace (c)) \ |
|
|
1258 buf << (char) c; \ |
|
|
1259 \ |
|
|
1260 if (isspace (c)) \ |
|
|
1261 is.putback (c); \ |
|
|
1262 \ |
|
3538
|
1263 buf << std::ends; \ |
|
3483
|
1264 \ |
|
|
1265 tmp = buf.str (); \ |
|
|
1266 } \ |
|
|
1267 } \ |
|
|
1268 while (0) |
|
|
1269 |
|
|
1270 // This format must match a nonempty sequence of characters. |
|
|
1271 #define BEGIN_CHAR_CLASS_CONVERSION() \ |
|
|
1272 int width = elt->width; \ |
|
|
1273 \ |
|
|
1274 char *tmp = 0; \ |
|
|
1275 \ |
|
|
1276 do \ |
|
|
1277 { \ |
|
|
1278 if (width) \ |
|
|
1279 { \ |
|
|
1280 tmp = new char[width+1]; \ |
|
|
1281 \ |
|
3640
|
1282 OCTAVE_SCAN (is, *elt, tmp); \ |
|
3483
|
1283 \ |
|
|
1284 tmp[width] = '\0'; \ |
|
|
1285 } \ |
|
|
1286 else \ |
|
|
1287 { \ |
|
3548
|
1288 std::ostrstream buf; \ |
|
3483
|
1289 \ |
|
3523
|
1290 std::string char_class = elt->char_class; \ |
|
3483
|
1291 \ |
|
|
1292 int c = EOF; \ |
|
|
1293 \ |
|
|
1294 if (elt->type == '[') \ |
|
|
1295 { \ |
|
|
1296 while (is && (c = is.get ()) != EOF \ |
|
|
1297 && char_class.find (c) != NPOS) \ |
|
|
1298 buf << (char) c; \ |
|
|
1299 } \ |
|
|
1300 else \ |
|
|
1301 { \ |
|
|
1302 while (is && (c = is.get ()) != EOF \ |
|
|
1303 && char_class.find (c) == NPOS) \ |
|
|
1304 buf << (char) c; \ |
|
|
1305 } \ |
|
|
1306 \ |
|
|
1307 if (c != EOF) \ |
|
|
1308 is.putback (c); \ |
|
|
1309 \ |
|
3538
|
1310 buf << std::ends; \ |
|
3483
|
1311 \ |
|
|
1312 tmp = buf.str (); \ |
|
|
1313 \ |
|
|
1314 if (strlen (tmp) == 0) \ |
|
3538
|
1315 is.setstate (std::ios::failbit); \ |
|
3483
|
1316 } \ |
|
|
1317 } \ |
|
|
1318 while (0) |
|
|
1319 |
|
3410
|
1320 #define FINISH_CHARACTER_CONVERSION() \ |
|
|
1321 do \ |
|
|
1322 { \ |
|
|
1323 width = strlen (tmp); \ |
|
|
1324 \ |
|
|
1325 if (is) \ |
|
|
1326 { \ |
|
|
1327 int i = 0; \ |
|
|
1328 \ |
|
|
1329 if (! discard) \ |
|
|
1330 { \ |
|
|
1331 conversion_count++; \ |
|
|
1332 \ |
|
|
1333 while (i < width && tmp[i] != '\0') \ |
|
|
1334 { \ |
|
|
1335 if (data_index == max_size) \ |
|
|
1336 { \ |
|
|
1337 max_size *= 2; \ |
|
|
1338 \ |
|
|
1339 if (nr > 0) \ |
|
|
1340 mval.resize (nr, max_size / nr, 0.0); \ |
|
|
1341 else \ |
|
|
1342 { \ |
|
|
1343 if (all_char_conv && one_elt_size_spec) \ |
|
|
1344 mval.resize (1, max_size, 0.0); \ |
|
|
1345 else \ |
|
|
1346 mval.resize (max_size, 1, 0.0); \ |
|
|
1347 } \ |
|
|
1348 \ |
|
|
1349 data = mval.fortran_vec (); \ |
|
|
1350 } \ |
|
|
1351 \ |
|
|
1352 data[data_index++] = tmp[i++]; \ |
|
|
1353 } \ |
|
|
1354 } \ |
|
|
1355 } \ |
|
|
1356 \ |
|
|
1357 delete [] tmp; \ |
|
|
1358 } \ |
|
|
1359 while (0) |
|
2117
|
1360 |
|
|
1361 octave_value |
|
|
1362 octave_base_stream::do_scanf (scanf_format_list& fmt_list, |
|
3268
|
1363 int nr, int nc, bool one_elt_size_spec, |
|
|
1364 int& conversion_count) |
|
2117
|
1365 { |
|
3268
|
1366 conversion_count = 0; |
|
|
1367 |
|
3640
|
1368 int nconv = fmt_list.num_conversions (); |
|
|
1369 |
|
3268
|
1370 int data_index = 0; |
|
2121
|
1371 |
|
2117
|
1372 octave_value retval = Matrix (); |
|
|
1373 |
|
3268
|
1374 if (nr == 0 || nc == 0) |
|
|
1375 { |
|
|
1376 if (one_elt_size_spec) |
|
|
1377 nc = 0; |
|
|
1378 |
|
|
1379 return Matrix (nr, nc, 0.0); |
|
|
1380 } |
|
|
1381 |
|
3523
|
1382 std::istream *isp = input_stream (); |
|
2117
|
1383 |
|
|
1384 bool all_char_conv = fmt_list.all_character_conversions (); |
|
|
1385 |
|
|
1386 Matrix mval; |
|
|
1387 double *data = 0; |
|
|
1388 int max_size = 0; |
|
3268
|
1389 int max_conv = 0; |
|
2117
|
1390 |
|
|
1391 int final_nr = 0; |
|
|
1392 int final_nc = 0; |
|
|
1393 |
|
3268
|
1394 if (all_char_conv) |
|
|
1395 { |
|
|
1396 if (one_elt_size_spec) |
|
|
1397 { |
|
3410
|
1398 max_size = 512; |
|
|
1399 mval.resize (1, max_size, 0.0); |
|
3268
|
1400 data = mval.fortran_vec (); |
|
3410
|
1401 |
|
3268
|
1402 if (nr > 0) |
|
|
1403 max_conv = nr; |
|
|
1404 } |
|
|
1405 else if (nr > 0 && nc > 0) |
|
|
1406 { |
|
3410
|
1407 mval.resize (nr, nc, 0.0); |
|
3268
|
1408 data = mval.fortran_vec (); |
|
3410
|
1409 max_size = max_conv = nr * nc; |
|
3268
|
1410 } |
|
|
1411 } |
|
|
1412 else if (nr > 0) |
|
2117
|
1413 { |
|
|
1414 if (nc > 0) |
|
|
1415 { |
|
|
1416 mval.resize (nr, nc, 0.0); |
|
|
1417 data = mval.fortran_vec (); |
|
|
1418 max_size = nr * nc; |
|
3268
|
1419 |
|
|
1420 max_conv = max_size; |
|
2117
|
1421 } |
|
|
1422 else |
|
|
1423 { |
|
|
1424 mval.resize (nr, 32, 0.0); |
|
|
1425 data = mval.fortran_vec (); |
|
2121
|
1426 max_size = nr * 32; |
|
2117
|
1427 } |
|
|
1428 } |
|
|
1429 else |
|
|
1430 { |
|
|
1431 mval.resize (32, 1, 0.0); |
|
|
1432 data = mval.fortran_vec (); |
|
|
1433 max_size = 32; |
|
|
1434 } |
|
|
1435 |
|
|
1436 if (isp) |
|
|
1437 { |
|
3523
|
1438 std::istream& is = *isp; |
|
2117
|
1439 |
|
|
1440 const scanf_format_elt *elt = fmt_list.first (); |
|
|
1441 |
|
3538
|
1442 std::ios::fmtflags flags = is.flags (); |
|
2213
|
1443 |
|
2117
|
1444 for (;;) |
|
|
1445 { |
|
|
1446 if (elt) |
|
|
1447 { |
|
3268
|
1448 if (max_conv > 0 && conversion_count == max_conv) |
|
|
1449 { |
|
|
1450 if (all_char_conv && one_elt_size_spec) |
|
|
1451 { |
|
|
1452 final_nr = 1; |
|
|
1453 final_nc = data_index; |
|
|
1454 } |
|
|
1455 else |
|
|
1456 { |
|
|
1457 final_nr = nr; |
|
|
1458 final_nc = (data_index - 1) / nr + 1; |
|
|
1459 } |
|
|
1460 |
|
|
1461 break; |
|
|
1462 } |
|
|
1463 else if (data_index == max_size) |
|
2117
|
1464 { |
|
3410
|
1465 max_size *= 2; |
|
|
1466 |
|
2687
|
1467 if (nr > 0) |
|
3410
|
1468 mval.resize (nr, max_size / nr, 0.0); |
|
2687
|
1469 else |
|
|
1470 { |
|
3410
|
1471 if (all_char_conv && one_elt_size_spec) |
|
|
1472 mval.resize (1, max_size, 0.0); |
|
|
1473 else |
|
|
1474 mval.resize (max_size, 1, 0.0); |
|
2687
|
1475 } |
|
3410
|
1476 |
|
|
1477 data = mval.fortran_vec (); |
|
2117
|
1478 } |
|
|
1479 |
|
|
1480 const char *fmt = elt->text; |
|
|
1481 |
|
|
1482 bool discard = elt->discard; |
|
|
1483 |
|
|
1484 switch (elt->type) |
|
|
1485 { |
|
3483
|
1486 case scanf_format_elt::whitespace_conversion: |
|
|
1487 DO_WHITESPACE_CONVERSION (); |
|
|
1488 break; |
|
|
1489 |
|
|
1490 case scanf_format_elt::literal_conversion: |
|
|
1491 DO_LITERAL_CONVERSION (); |
|
|
1492 break; |
|
|
1493 |
|
2117
|
1494 case '%': |
|
3640
|
1495 DO_PCT_CONVERSION (); |
|
3483
|
1496 break; |
|
2117
|
1497 |
|
|
1498 case 'd': case 'i': case 'o': case 'u': case 'x': |
|
|
1499 { |
|
3233
|
1500 switch (elt->modifier) |
|
|
1501 { |
|
|
1502 case 'h': |
|
|
1503 { |
|
|
1504 short int tmp; |
|
3268
|
1505 do_scanf_conv (is, fmt, &tmp, mval, data, |
|
|
1506 data_index, conversion_count, |
|
3233
|
1507 nr, max_size, discard); |
|
|
1508 } |
|
3483
|
1509 break; |
|
3233
|
1510 |
|
|
1511 case 'l': |
|
|
1512 { |
|
|
1513 long int tmp; |
|
3268
|
1514 do_scanf_conv (is, fmt, &tmp, mval, data, |
|
|
1515 data_index, conversion_count, |
|
3233
|
1516 nr, max_size, discard); |
|
|
1517 } |
|
3483
|
1518 break; |
|
3233
|
1519 |
|
|
1520 default: |
|
|
1521 { |
|
|
1522 int tmp; |
|
3268
|
1523 do_scanf_conv (is, fmt, &tmp, mval, data, |
|
|
1524 data_index, conversion_count, |
|
3233
|
1525 nr, max_size, discard); |
|
|
1526 } |
|
3483
|
1527 break; |
|
3233
|
1528 } |
|
2117
|
1529 } |
|
3483
|
1530 break; |
|
2117
|
1531 |
|
|
1532 case 'e': case 'f': case 'g': |
|
|
1533 { |
|
2600
|
1534 double tmp; |
|
|
1535 |
|
3268
|
1536 do_scanf_conv (is, fmt, &tmp, mval, data, |
|
|
1537 data_index, conversion_count, |
|
2600
|
1538 nr, max_size, discard); |
|
2117
|
1539 } |
|
3483
|
1540 break; |
|
2117
|
1541 |
|
2213
|
1542 case 'c': |
|
3410
|
1543 { |
|
3483
|
1544 BEGIN_C_CONVERSION (); |
|
3410
|
1545 |
|
|
1546 FINISH_CHARACTER_CONVERSION (); |
|
3483
|
1547 |
|
|
1548 is.setf (flags); |
|
3410
|
1549 } |
|
|
1550 break; |
|
2213
|
1551 |
|
2117
|
1552 case 's': |
|
|
1553 { |
|
3483
|
1554 BEGIN_S_CONVERSION (); |
|
3268
|
1555 |
|
3410
|
1556 FINISH_CHARACTER_CONVERSION (); |
|
2117
|
1557 } |
|
3483
|
1558 break; |
|
|
1559 |
|
|
1560 case '[': case '^': |
|
|
1561 { |
|
|
1562 BEGIN_CHAR_CLASS_CONVERSION (); |
|
|
1563 |
|
|
1564 FINISH_CHARACTER_CONVERSION (); |
|
|
1565 } |
|
|
1566 break; |
|
|
1567 |
|
|
1568 case 'p': |
|
2215
|
1569 error ("fscanf: unsupported format specifier"); |
|
2117
|
1570 break; |
|
|
1571 |
|
|
1572 default: |
|
|
1573 error ("fscanf: internal format error"); |
|
|
1574 break; |
|
|
1575 } |
|
|
1576 |
|
|
1577 if (! ok ()) |
|
|
1578 { |
|
|
1579 break; |
|
|
1580 } |
|
|
1581 else if (! is) |
|
|
1582 { |
|
3268
|
1583 if (all_char_conv) |
|
2117
|
1584 { |
|
3268
|
1585 if (one_elt_size_spec) |
|
|
1586 { |
|
|
1587 final_nr = 1; |
|
|
1588 final_nc = data_index; |
|
|
1589 } |
|
|
1590 else if (data_index > nr) |
|
2117
|
1591 { |
|
2759
|
1592 final_nr = nr; |
|
3268
|
1593 final_nc = (data_index - 1) / nr + 1; |
|
2117
|
1594 } |
|
|
1595 else |
|
|
1596 { |
|
3268
|
1597 final_nr = data_index; |
|
|
1598 final_nc = 1; |
|
|
1599 } |
|
|
1600 } |
|
|
1601 else if (nr > 0) |
|
|
1602 { |
|
|
1603 if (data_index > nr) |
|
|
1604 { |
|
|
1605 final_nr = nr; |
|
|
1606 final_nc = (data_index - 1) / nr + 1; |
|
|
1607 } |
|
|
1608 else |
|
|
1609 { |
|
|
1610 final_nr = data_index; |
|
2117
|
1611 final_nc = 1; |
|
|
1612 } |
|
|
1613 } |
|
|
1614 else |
|
|
1615 { |
|
3268
|
1616 final_nr = data_index; |
|
2759
|
1617 final_nc = 1; |
|
|
1618 } |
|
|
1619 |
|
3337
|
1620 // If it looks like we have a matching failure, then |
|
|
1621 // reset the failbit in the stream state. |
|
|
1622 |
|
3538
|
1623 if (is.rdstate () & std::ios::failbit) |
|
|
1624 is.clear (is.rdstate () & (~std::ios::failbit)); |
|
3337
|
1625 |
|
2759
|
1626 // XXX FIXME XXX -- is this the right thing to do? |
|
3342
|
1627 |
|
|
1628 if (interactive && name () == "stdin") |
|
2759
|
1629 { |
|
|
1630 is.clear (); |
|
|
1631 |
|
|
1632 // Skip to end of line. |
|
|
1633 |
|
|
1634 bool err; |
|
|
1635 do_gets (-1, err, false, "fscanf"); |
|
2117
|
1636 } |
|
|
1637 |
|
|
1638 break; |
|
|
1639 } |
|
|
1640 } |
|
|
1641 else |
|
|
1642 { |
|
|
1643 error ("fscanf: internal format error"); |
|
|
1644 break; |
|
|
1645 } |
|
|
1646 |
|
3640
|
1647 elt = fmt_list.next (nconv > 0); |
|
2117
|
1648 } |
|
|
1649 } |
|
|
1650 |
|
|
1651 if (ok ()) |
|
|
1652 { |
|
2121
|
1653 mval.resize (final_nr, final_nc, 0.0); |
|
2117
|
1654 |
|
3268
|
1655 retval = mval; |
|
|
1656 |
|
2117
|
1657 if (all_char_conv) |
|
3268
|
1658 retval = retval.convert_to_str (); |
|
2117
|
1659 } |
|
|
1660 |
|
|
1661 return retval; |
|
|
1662 } |
|
|
1663 |
|
|
1664 octave_value |
|
3553
|
1665 octave_base_stream::scanf (const std::string& fmt, const Matrix& size, |
|
3559
|
1666 int& conversion_count) |
|
2117
|
1667 { |
|
|
1668 octave_value retval = Matrix (); |
|
|
1669 |
|
3559
|
1670 conversion_count = 0; |
|
2117
|
1671 |
|
3523
|
1672 std::istream *isp = input_stream (); |
|
2117
|
1673 |
|
|
1674 if (isp) |
|
|
1675 { |
|
|
1676 scanf_format_list fmt_list (fmt); |
|
|
1677 |
|
3640
|
1678 if (fmt_list.num_conversions () == -1) |
|
|
1679 ::error ("fscanf: invalid format specified"); |
|
|
1680 else |
|
2117
|
1681 { |
|
3640
|
1682 int nr = -1; |
|
|
1683 int nc = -1; |
|
|
1684 |
|
|
1685 bool one_elt_size_spec; |
|
|
1686 |
|
|
1687 get_size (size, nr, nc, one_elt_size_spec, "fscanf"); |
|
|
1688 |
|
|
1689 if (! error_state) |
|
|
1690 retval = do_scanf (fmt_list, nr, nc, one_elt_size_spec, |
|
|
1691 conversion_count); |
|
2215
|
1692 } |
|
|
1693 } |
|
|
1694 else |
|
2712
|
1695 invalid_operation ("fscanf", "reading"); |
|
2572
|
1696 |
|
|
1697 return retval; |
|
|
1698 } |
|
|
1699 |
|
2712
|
1700 bool |
|
|
1701 octave_base_stream::do_oscanf (const scanf_format_elt *elt, |
|
|
1702 octave_value& retval) |
|
2572
|
1703 { |
|
2712
|
1704 bool quit = false; |
|
2215
|
1705 |
|
3523
|
1706 std::istream *isp = input_stream (); |
|
2215
|
1707 |
|
|
1708 if (isp) |
|
|
1709 { |
|
3523
|
1710 std::istream& is = *isp; |
|
2215
|
1711 |
|
3538
|
1712 std::ios::fmtflags flags = is.flags (); |
|
2215
|
1713 |
|
|
1714 if (elt) |
|
|
1715 { |
|
|
1716 const char *fmt = elt->text; |
|
|
1717 |
|
|
1718 bool discard = elt->discard; |
|
|
1719 |
|
|
1720 switch (elt->type) |
|
|
1721 { |
|
3483
|
1722 case scanf_format_elt::whitespace_conversion: |
|
|
1723 DO_WHITESPACE_CONVERSION (); |
|
|
1724 break; |
|
|
1725 |
|
|
1726 case scanf_format_elt::literal_conversion: |
|
|
1727 DO_LITERAL_CONVERSION (); |
|
|
1728 break; |
|
|
1729 |
|
2215
|
1730 case '%': |
|
|
1731 { |
|
3640
|
1732 DO_PCT_CONVERSION (); |
|
|
1733 |
|
|
1734 if (! is) |
|
2712
|
1735 quit = true; |
|
3640
|
1736 |
|
2215
|
1737 } |
|
|
1738 break; |
|
|
1739 |
|
|
1740 case 'd': case 'i': case 'o': case 'u': case 'x': |
|
|
1741 { |
|
|
1742 int tmp; |
|
|
1743 |
|
3640
|
1744 if (OCTAVE_SCAN (is, *elt, &tmp)) |
|
2712
|
1745 { |
|
|
1746 if (! discard) |
|
2800
|
1747 retval = static_cast<double> (tmp); |
|
2712
|
1748 } |
|
|
1749 else |
|
|
1750 quit = true; |
|
2215
|
1751 } |
|
|
1752 break; |
|
|
1753 |
|
|
1754 case 'e': case 'f': case 'g': |
|
|
1755 { |
|
2600
|
1756 double tmp; |
|
|
1757 |
|
3640
|
1758 if (OCTAVE_SCAN (is, *elt, &tmp)) |
|
2712
|
1759 { |
|
|
1760 if (! discard) |
|
|
1761 retval = tmp; |
|
|
1762 } |
|
|
1763 else |
|
|
1764 quit = true; |
|
2215
|
1765 } |
|
|
1766 break; |
|
|
1767 |
|
|
1768 case 'c': |
|
|
1769 { |
|
3483
|
1770 BEGIN_C_CONVERSION (); |
|
|
1771 |
|
|
1772 if (! discard) |
|
|
1773 retval = tmp; |
|
|
1774 |
|
|
1775 delete [] tmp; |
|
|
1776 |
|
|
1777 if (! is) |
|
2712
|
1778 quit = true; |
|
2215
|
1779 |
|
|
1780 is.setf (flags); |
|
|
1781 } |
|
|
1782 break; |
|
|
1783 |
|
|
1784 case 's': |
|
|
1785 { |
|
3483
|
1786 BEGIN_S_CONVERSION (); |
|
|
1787 |
|
|
1788 if (! discard) |
|
|
1789 retval = tmp; |
|
2572
|
1790 |
|
2215
|
1791 delete [] tmp; |
|
3268
|
1792 |
|
|
1793 if (! is) |
|
|
1794 quit = true; |
|
2215
|
1795 } |
|
|
1796 break; |
|
|
1797 |
|
3483
|
1798 case '[': case '^': |
|
|
1799 { |
|
|
1800 BEGIN_CHAR_CLASS_CONVERSION (); |
|
|
1801 |
|
|
1802 if (! discard) |
|
|
1803 retval = tmp; |
|
|
1804 |
|
|
1805 delete [] tmp; |
|
|
1806 |
|
|
1807 if (! is) |
|
|
1808 quit = true; |
|
|
1809 } |
|
|
1810 break; |
|
|
1811 |
|
|
1812 case 'p': |
|
2215
|
1813 error ("fscanf: unsupported format specifier"); |
|
|
1814 break; |
|
|
1815 |
|
|
1816 default: |
|
|
1817 error ("fscanf: internal format error"); |
|
|
1818 break; |
|
|
1819 } |
|
|
1820 } |
|
|
1821 |
|
|
1822 if (ok () && is.fail ()) |
|
|
1823 { |
|
|
1824 error ("fscanf: read error"); |
|
3483
|
1825 |
|
2215
|
1826 // XXX FIXME XXX -- is this the right thing to do? |
|
3342
|
1827 |
|
|
1828 if (interactive && name () == "stdin") |
|
2215
|
1829 { |
|
|
1830 // Skip to end of line. |
|
|
1831 |
|
|
1832 bool err; |
|
|
1833 do_gets (-1, err, false, "fscanf"); |
|
|
1834 } |
|
|
1835 } |
|
|
1836 } |
|
|
1837 |
|
2712
|
1838 return quit; |
|
2215
|
1839 } |
|
|
1840 |
|
|
1841 octave_value_list |
|
3523
|
1842 octave_base_stream::oscanf (const std::string& fmt) |
|
2215
|
1843 { |
|
|
1844 octave_value_list retval; |
|
|
1845 |
|
3523
|
1846 std::istream *isp = input_stream (); |
|
2215
|
1847 |
|
|
1848 if (isp) |
|
|
1849 { |
|
3523
|
1850 std::istream& is = *isp; |
|
2215
|
1851 |
|
|
1852 scanf_format_list fmt_list (fmt); |
|
|
1853 |
|
|
1854 int nconv = fmt_list.num_conversions (); |
|
|
1855 |
|
3640
|
1856 if (nconv == -1) |
|
|
1857 ::error ("fscanf: invalid format specified"); |
|
|
1858 else |
|
2215
|
1859 { |
|
3640
|
1860 is.clear (); |
|
|
1861 |
|
|
1862 int len = fmt_list.length (); |
|
|
1863 |
|
|
1864 retval.resize (nconv+1, Matrix ()); |
|
|
1865 |
|
|
1866 const scanf_format_elt *elt = fmt_list.first (); |
|
|
1867 |
|
|
1868 int num_values = 0; |
|
|
1869 |
|
|
1870 bool quit = false; |
|
|
1871 |
|
|
1872 for (int i = 0; i < len; i++) |
|
|
1873 { |
|
|
1874 octave_value tmp; |
|
|
1875 |
|
|
1876 quit = do_oscanf (elt, tmp); |
|
|
1877 |
|
|
1878 if (quit) |
|
|
1879 break; |
|
|
1880 else |
|
|
1881 { |
|
|
1882 if (tmp.is_defined ()) |
|
|
1883 retval (num_values++) = tmp; |
|
|
1884 |
|
|
1885 if (! ok ()) |
|
|
1886 break; |
|
|
1887 |
|
|
1888 elt = fmt_list.next (nconv > 0); |
|
|
1889 } |
|
|
1890 } |
|
|
1891 |
|
|
1892 retval (nconv) = static_cast<double> (num_values); |
|
|
1893 |
|
|
1894 if (! quit) |
|
|
1895 { |
|
|
1896 // Pick up any trailing stuff. |
|
|
1897 if (ok () && len > nconv) |
|
|
1898 { |
|
|
1899 octave_value tmp; |
|
|
1900 do_oscanf (elt, tmp); |
|
|
1901 } |
|
|
1902 } |
|
2117
|
1903 } |
|
|
1904 } |
|
|
1905 else |
|
2712
|
1906 invalid_operation ("fscanf", "reading"); |
|
2117
|
1907 |
|
|
1908 return retval; |
|
|
1909 } |
|
|
1910 |
|
|
1911 // Functions that are defined for all output streams (output streams |
|
|
1912 // are those that define os). |
|
|
1913 |
|
|
1914 int |
|
|
1915 octave_base_stream::flush (void) |
|
|
1916 { |
|
|
1917 int retval = -1; |
|
|
1918 |
|
3523
|
1919 std::ostream *os = output_stream (); |
|
2117
|
1920 |
|
|
1921 if (os) |
|
|
1922 { |
|
|
1923 os->flush (); |
|
|
1924 |
|
|
1925 if (os->good ()) |
|
|
1926 retval = 0; |
|
|
1927 } |
|
|
1928 else |
|
|
1929 invalid_operation ("fflush", "writing"); |
|
|
1930 |
|
|
1931 return retval; |
|
|
1932 } |
|
|
1933 |
|
|
1934 int |
|
2317
|
1935 octave_base_stream::write (const octave_value& data, |
|
|
1936 oct_data_conv::data_type dt, int skip, |
|
3553
|
1937 oct_mach_info::float_format ffmt) |
|
2117
|
1938 { |
|
|
1939 int retval = -1; |
|
|
1940 |
|
3523
|
1941 std::ostream *osp = output_stream (); |
|
2117
|
1942 |
|
|
1943 if (osp) |
|
|
1944 { |
|
3523
|
1945 std::ostream& os = *osp; |
|
2117
|
1946 |
|
|
1947 Matrix mval = data.matrix_value (); |
|
|
1948 |
|
|
1949 if (! error_state) |
|
|
1950 { |
|
3553
|
1951 if (ffmt == oct_mach_info::unknown) |
|
|
1952 ffmt = float_format (); |
|
|
1953 |
|
|
1954 int tmp = mval.write (os, dt, skip, ffmt); |
|
2317
|
1955 |
|
|
1956 if (tmp < 0) |
|
|
1957 error ("fwrite: write error"); |
|
|
1958 else |
|
|
1959 retval = tmp; |
|
2117
|
1960 } |
|
|
1961 } |
|
|
1962 else |
|
|
1963 invalid_operation ("fwrite", "writing"); |
|
|
1964 |
|
|
1965 return retval; |
|
|
1966 } |
|
|
1967 |
|
|
1968 class |
|
|
1969 printf_value_cache |
|
|
1970 { |
|
|
1971 public: |
|
|
1972 |
|
|
1973 enum state { ok, list_exhausted, conversion_error }; |
|
|
1974 |
|
|
1975 printf_value_cache (const octave_value_list& args) |
|
|
1976 : values (args), val_idx (0), elt_idx (0), |
|
|
1977 n_vals (values.length ()), n_elts (0), data (0), |
|
|
1978 curr_state (ok) { } |
|
|
1979 |
|
|
1980 ~printf_value_cache (void) { } |
|
|
1981 |
|
|
1982 // Get the current value as a double and advance the internal pointer. |
|
|
1983 double double_value (void); |
|
|
1984 |
|
|
1985 // Get the current value as an int and advance the internal pointer. |
|
|
1986 int int_value (void); |
|
|
1987 |
|
|
1988 // Get the current value as a string and advance the internal pointer. |
|
3523
|
1989 std::string string_value (void); |
|
2117
|
1990 |
|
3145
|
1991 operator bool () const { return (curr_state == ok); } |
|
2117
|
1992 |
|
3640
|
1993 bool exhausted (void) |
|
|
1994 { return (curr_state == list_exhausted || val_idx + 1 >= n_vals); } |
|
2117
|
1995 |
|
|
1996 bool looking_at_string (void); |
|
|
1997 |
|
|
1998 private: |
|
|
1999 |
|
|
2000 const octave_value_list values; |
|
|
2001 int val_idx; |
|
|
2002 int elt_idx; |
|
|
2003 int n_vals; |
|
|
2004 int n_elts; |
|
|
2005 const double *data; |
|
|
2006 Matrix curr_val; |
|
|
2007 state curr_state; |
|
|
2008 |
|
|
2009 // Must create value cache with values! |
|
|
2010 |
|
|
2011 printf_value_cache (void); |
|
|
2012 |
|
|
2013 // No copying! |
|
|
2014 |
|
|
2015 printf_value_cache (const printf_value_cache&); |
|
|
2016 |
|
|
2017 printf_value_cache& operator = (const printf_value_cache&); |
|
|
2018 }; |
|
|
2019 |
|
|
2020 bool |
|
|
2021 printf_value_cache::looking_at_string (void) |
|
|
2022 { |
|
|
2023 bool retval = false; |
|
|
2024 |
|
|
2025 int idx = -1; |
|
|
2026 |
|
|
2027 if (elt_idx == 0) |
|
|
2028 idx = val_idx; |
|
|
2029 else if (elt_idx >= n_elts) |
|
|
2030 idx = val_idx + 1; |
|
|
2031 |
|
|
2032 if (idx >= 0 && idx < n_vals) |
|
|
2033 { |
|
|
2034 octave_value tmp_val = values (idx); |
|
|
2035 |
|
2613
|
2036 // An empty string has zero rows and zero columns. |
|
|
2037 |
|
|
2038 if (tmp_val.is_string ()) |
|
|
2039 { |
|
|
2040 int nr = tmp_val.rows (); |
|
|
2041 |
|
|
2042 retval = (nr == 1 || (nr == 0 && tmp_val.columns () == 0)); |
|
|
2043 } |
|
2117
|
2044 } |
|
|
2045 |
|
|
2046 return retval; |
|
|
2047 } |
|
|
2048 |
|
|
2049 double |
|
|
2050 printf_value_cache::double_value (void) |
|
|
2051 { |
|
|
2052 double retval = 0.0; |
|
|
2053 |
|
|
2054 while (val_idx < n_vals) |
|
|
2055 { |
|
|
2056 if (! data) |
|
|
2057 { |
|
|
2058 octave_value tmp_val = values (val_idx); |
|
|
2059 |
|
|
2060 curr_val = tmp_val.matrix_value (); |
|
|
2061 |
|
|
2062 if (! error_state) |
|
|
2063 { |
|
|
2064 elt_idx = 0; |
|
|
2065 n_elts = curr_val.length (); |
|
|
2066 data = curr_val.data (); |
|
|
2067 } |
|
|
2068 else |
|
|
2069 { |
|
|
2070 curr_state = conversion_error; |
|
|
2071 break; |
|
|
2072 } |
|
|
2073 } |
|
|
2074 |
|
|
2075 if (elt_idx < n_elts) |
|
|
2076 { |
|
|
2077 return data[elt_idx++]; |
|
|
2078 break; |
|
|
2079 } |
|
|
2080 else |
|
|
2081 { |
|
|
2082 val_idx++; |
|
|
2083 data = 0; |
|
|
2084 continue; |
|
|
2085 } |
|
|
2086 } |
|
|
2087 |
|
|
2088 curr_state = list_exhausted; |
|
|
2089 |
|
|
2090 return retval; |
|
|
2091 } |
|
|
2092 |
|
|
2093 int |
|
|
2094 printf_value_cache::int_value (void) |
|
|
2095 { |
|
|
2096 int retval = 0; |
|
|
2097 |
|
|
2098 double dval = double_value (); |
|
|
2099 |
|
|
2100 if (! error_state) |
|
|
2101 { |
|
|
2102 if (D_NINT (dval) == dval) |
|
|
2103 retval = NINT (dval); |
|
|
2104 else |
|
|
2105 curr_state = conversion_error; |
|
|
2106 } |
|
|
2107 |
|
|
2108 return retval; |
|
|
2109 } |
|
|
2110 |
|
3536
|
2111 std::string |
|
2117
|
2112 printf_value_cache::string_value (void) |
|
|
2113 { |
|
3523
|
2114 std::string retval; |
|
2117
|
2115 |
|
|
2116 if (looking_at_string ()) |
|
|
2117 { |
|
|
2118 if (elt_idx != 0) |
|
|
2119 { |
|
|
2120 val_idx++; |
|
|
2121 elt_idx = 0; |
|
|
2122 data = 0; |
|
|
2123 } |
|
|
2124 |
|
|
2125 retval = values (val_idx++).string_value (); |
|
|
2126 } |
|
|
2127 else |
|
|
2128 curr_state = conversion_error; |
|
|
2129 |
|
|
2130 return retval; |
|
|
2131 } |
|
|
2132 |
|
|
2133 // Ugh again and again. |
|
|
2134 |
|
2572
|
2135 template <class T> |
|
3620
|
2136 int |
|
3523
|
2137 do_printf_conv (std::ostream& os, const char *fmt, int nsa, int sa_1, |
|
3640
|
2138 int sa_2, T arg) |
|
2572
|
2139 { |
|
3620
|
2140 int retval = 0; |
|
|
2141 |
|
2572
|
2142 switch (nsa) |
|
|
2143 { |
|
|
2144 case 2: |
|
3640
|
2145 retval = octave_format (os, fmt, sa_1, sa_2, arg); |
|
2572
|
2146 break; |
|
|
2147 |
|
|
2148 case 1: |
|
3640
|
2149 retval = octave_format (os, fmt, sa_1, arg); |
|
2572
|
2150 break; |
|
|
2151 |
|
|
2152 case 0: |
|
3640
|
2153 retval = octave_format (os, fmt, arg); |
|
2572
|
2154 break; |
|
|
2155 |
|
|
2156 default: |
|
|
2157 ::error ("fprintf: internal error handling format"); |
|
|
2158 break; |
|
|
2159 } |
|
3620
|
2160 |
|
|
2161 return retval; |
|
2572
|
2162 } |
|
|
2163 |
|
3620
|
2164 template int |
|
3640
|
2165 do_printf_conv (std::ostream&, const char*, int, int, int, int); |
|
|
2166 |
|
|
2167 template int |
|
|
2168 do_printf_conv (std::ostream&, const char*, int, int, int, long); |
|
|
2169 |
|
|
2170 template int |
|
|
2171 do_printf_conv (std::ostream&, const char*, int, int, int, double); |
|
|
2172 |
|
|
2173 template int |
|
|
2174 do_printf_conv (std::ostream&, const char*, int, int, int, const char*); |
|
2117
|
2175 |
|
|
2176 int |
|
|
2177 octave_base_stream::do_printf (printf_format_list& fmt_list, |
|
|
2178 const octave_value_list& args) |
|
|
2179 { |
|
3620
|
2180 int retval = 0; |
|
2117
|
2181 |
|
3640
|
2182 int nconv = fmt_list.num_conversions (); |
|
|
2183 |
|
3523
|
2184 std::ostream *osp = output_stream (); |
|
2117
|
2185 |
|
|
2186 if (osp) |
|
|
2187 { |
|
3523
|
2188 std::ostream& os = *osp; |
|
2117
|
2189 |
|
|
2190 const printf_format_elt *elt = fmt_list.first (); |
|
|
2191 |
|
|
2192 printf_value_cache val_cache (args); |
|
|
2193 |
|
|
2194 for (;;) |
|
|
2195 { |
|
|
2196 if (elt) |
|
|
2197 { |
|
3640
|
2198 // NSA is the number of `star' args to convert. |
|
|
2199 |
|
|
2200 int nsa = (elt->fw < 0) + (elt->prec < 0); |
|
2117
|
2201 |
|
|
2202 int sa_1 = 0; |
|
|
2203 int sa_2 = 0; |
|
|
2204 |
|
|
2205 if (nsa > 0) |
|
|
2206 { |
|
|
2207 sa_1 = val_cache.int_value (); |
|
|
2208 |
|
|
2209 if (! val_cache) |
|
|
2210 break; |
|
|
2211 else |
|
|
2212 { |
|
|
2213 if (nsa > 1) |
|
|
2214 { |
|
|
2215 sa_2 = val_cache.int_value (); |
|
|
2216 |
|
|
2217 if (! val_cache) |
|
|
2218 break; |
|
|
2219 } |
|
|
2220 } |
|
|
2221 } |
|
|
2222 |
|
|
2223 const char *fmt = elt->text; |
|
|
2224 |
|
3640
|
2225 if (elt->type == '%') |
|
|
2226 { |
|
|
2227 os << "%"; |
|
|
2228 retval++; |
|
|
2229 } |
|
|
2230 else if (elt->args == 0 && elt->text) |
|
|
2231 { |
|
|
2232 os << elt->text; |
|
|
2233 retval += strlen (elt->text); |
|
|
2234 } |
|
|
2235 else if (elt->type == 's' && val_cache.looking_at_string ()) |
|
|
2236 { |
|
|
2237 std::string val = val_cache.string_value (); |
|
|
2238 |
|
|
2239 if (val_cache) |
|
|
2240 retval += do_printf_conv (os, fmt, nsa, sa_1, |
|
|
2241 sa_2, val.c_str ()); |
|
|
2242 else |
|
|
2243 break; |
|
|
2244 } |
|
2117
|
2245 else |
|
|
2246 { |
|
3640
|
2247 double val = val_cache.double_value (); |
|
|
2248 |
|
|
2249 if (val_cache) |
|
2117
|
2250 { |
|
3640
|
2251 switch (elt->type) |
|
|
2252 { |
|
|
2253 case 'd': case 'i': case 'o': case 'x': |
|
|
2254 case 'X': case 'u': case 'c': |
|
|
2255 { |
|
|
2256 if (elt->modifier == 'l') |
|
|
2257 retval |
|
|
2258 += do_printf_conv (os, fmt, nsa, sa_1, sa_2, |
|
|
2259 static_cast<long> (val)); |
|
|
2260 else |
|
|
2261 retval |
|
|
2262 += do_printf_conv (os, fmt, nsa, sa_1, sa_2, |
|
|
2263 static_cast<int> (val)); |
|
|
2264 } |
|
|
2265 break; |
|
|
2266 |
|
|
2267 case 'f': case 'e': case 'E': |
|
|
2268 case 'g': case 'G': |
|
|
2269 retval |
|
|
2270 += do_printf_conv (os, fmt, nsa, sa_1, sa_2, val); |
|
|
2271 break; |
|
|
2272 |
|
|
2273 default: |
|
|
2274 error ("fprintf: invalid format specifier"); |
|
|
2275 return -1; |
|
|
2276 break; |
|
|
2277 } |
|
2117
|
2278 } |
|
|
2279 else |
|
3620
|
2280 break; |
|
2117
|
2281 } |
|
|
2282 |
|
3620
|
2283 if (! os) |
|
2117
|
2284 { |
|
|
2285 error ("fprintf: write error"); |
|
|
2286 break; |
|
|
2287 } |
|
|
2288 } |
|
|
2289 else |
|
|
2290 { |
|
|
2291 ::error ("fprintf: internal error handling format"); |
|
|
2292 retval = -1; |
|
|
2293 break; |
|
|
2294 } |
|
|
2295 |
|
3640
|
2296 elt = fmt_list.next (nconv > 0 && ! val_cache.exhausted ()); |
|
|
2297 |
|
|
2298 if (! elt || (val_cache.exhausted () && elt->args > 0)) |
|
|
2299 break; |
|
|
2300 } |
|
2117
|
2301 } |
|
3640
|
2302 else |
|
|
2303 invalid_operation ("fprintf", "writing"); |
|
2117
|
2304 |
|
|
2305 return retval; |
|
|
2306 } |
|
|
2307 |
|
|
2308 int |
|
3640
|
2309 octave_base_stream::printf (const std::string& fmt, |
|
|
2310 const octave_value_list& args) |
|
2117
|
2311 { |
|
3640
|
2312 int retval = 0; |
|
|
2313 |
|
|
2314 printf_format_list fmt_list (fmt); |
|
|
2315 |
|
|
2316 if (fmt_list.num_conversions () == -1) |
|
|
2317 ::error ("fprintf: invalid format specified"); |
|
2117
|
2318 else |
|
3640
|
2319 retval = do_printf (fmt_list, args); |
|
2117
|
2320 |
|
|
2321 return retval; |
|
|
2322 } |
|
|
2323 |
|
|
2324 int |
|
3523
|
2325 octave_base_stream::puts (const std::string& s) |
|
2117
|
2326 { |
|
|
2327 int retval = -1; |
|
|
2328 |
|
3523
|
2329 std::ostream *osp = output_stream (); |
|
2117
|
2330 |
|
|
2331 if (osp) |
|
|
2332 { |
|
3523
|
2333 std::ostream& os = *osp; |
|
2117
|
2334 |
|
|
2335 os << s; |
|
|
2336 |
|
|
2337 if (os) |
|
|
2338 { |
|
|
2339 // XXX FIXME XXX -- why does this seem to be necessary? |
|
|
2340 // Without it, output from a loop like |
|
|
2341 // |
|
|
2342 // for i = 1:100, fputs (stdout, "foo\n"); endfor |
|
|
2343 // |
|
|
2344 // doesn't seem to go to the pager immediately. |
|
|
2345 |
|
|
2346 os.flush (); |
|
|
2347 |
|
|
2348 if (os) |
|
|
2349 retval = 0; |
|
|
2350 else |
|
|
2351 error ("fputs: write error"); |
|
|
2352 } |
|
|
2353 else |
|
|
2354 error ("fputs: write error"); |
|
|
2355 } |
|
|
2356 else |
|
|
2357 invalid_operation ("fputs", "writing"); |
|
|
2358 |
|
|
2359 return retval; |
|
|
2360 } |
|
|
2361 |
|
|
2362 int |
|
|
2363 octave_base_stream::rewind (void) |
|
|
2364 { |
|
3538
|
2365 return seek (0, std::ios::beg); |
|
2117
|
2366 } |
|
|
2367 |
|
|
2368 // Return current error message for this stream. |
|
|
2369 |
|
3536
|
2370 std::string |
|
2435
|
2371 octave_base_stream::error (bool clear_err, int& err_num) |
|
2117
|
2372 { |
|
2435
|
2373 err_num = fail ? -1 : 0; |
|
2117
|
2374 |
|
3523
|
2375 std::string tmp = errmsg; |
|
2117
|
2376 |
|
|
2377 if (clear_err) |
|
|
2378 clear (); |
|
|
2379 |
|
|
2380 return tmp; |
|
|
2381 } |
|
|
2382 |
|
|
2383 void |
|
|
2384 octave_base_stream::invalid_operation (const char *op, const char *rw) |
|
|
2385 { |
|
3523
|
2386 std::string msg = op; |
|
2117
|
2387 msg.append (": stream not open for "); |
|
|
2388 msg.append (rw); |
|
|
2389 error (msg); |
|
|
2390 } |
|
|
2391 |
|
3552
|
2392 octave_stream::octave_stream (octave_base_stream *bs) |
|
3340
|
2393 : rep (bs) |
|
|
2394 { |
|
|
2395 if (rep) |
|
|
2396 rep->count = 1; |
|
|
2397 } |
|
|
2398 |
|
|
2399 octave_stream::~octave_stream (void) |
|
|
2400 { |
|
|
2401 if (rep && --rep->count == 0) |
|
|
2402 delete rep; |
|
|
2403 } |
|
|
2404 |
|
|
2405 octave_stream::octave_stream (const octave_stream& s) |
|
|
2406 : rep (s.rep) |
|
|
2407 { |
|
|
2408 if (rep) |
|
|
2409 rep->count++; |
|
|
2410 } |
|
|
2411 |
|
|
2412 octave_stream& |
|
|
2413 octave_stream::operator = (const octave_stream& s) |
|
|
2414 { |
|
|
2415 if (rep != s.rep) |
|
|
2416 { |
|
|
2417 if (rep && --rep->count == 0) |
|
|
2418 delete rep; |
|
|
2419 |
|
|
2420 rep = s.rep; |
|
|
2421 |
|
|
2422 if (rep) |
|
|
2423 rep->count++; |
|
|
2424 } |
|
|
2425 |
|
|
2426 return *this; |
|
|
2427 } |
|
|
2428 |
|
2117
|
2429 int |
|
|
2430 octave_stream::flush (void) |
|
|
2431 { |
|
|
2432 int retval = -1; |
|
|
2433 |
|
|
2434 if (stream_ok ("fflush")) |
|
|
2435 retval = rep->flush (); |
|
|
2436 |
|
|
2437 return retval; |
|
|
2438 } |
|
|
2439 |
|
3536
|
2440 std::string |
|
2117
|
2441 octave_stream::getl (int max_len, bool& err) |
|
|
2442 { |
|
3523
|
2443 std::string retval; |
|
2117
|
2444 |
|
|
2445 if (stream_ok ("getl")) |
|
|
2446 retval = rep->getl (max_len, err); |
|
|
2447 |
|
|
2448 return retval; |
|
|
2449 } |
|
|
2450 |
|
3536
|
2451 std::string |
|
2117
|
2452 octave_stream::getl (const octave_value& tc_max_len, bool& err) |
|
|
2453 { |
|
3523
|
2454 std::string retval; |
|
2117
|
2455 |
|
|
2456 err = false; |
|
|
2457 |
|
|
2458 int conv_err = 0; |
|
|
2459 |
|
|
2460 int max_len = convert_to_valid_int (tc_max_len, conv_err); |
|
|
2461 |
|
|
2462 if (conv_err || max_len < 0) |
|
|
2463 { |
|
|
2464 err = true; |
|
|
2465 ::error ("fgetl: invalid maximum length specified"); |
|
|
2466 } |
|
|
2467 else |
|
|
2468 retval = getl (max_len, err); |
|
|
2469 |
|
|
2470 return retval; |
|
|
2471 } |
|
|
2472 |
|
3536
|
2473 std::string |
|
2117
|
2474 octave_stream::gets (int max_len, bool& err) |
|
|
2475 { |
|
3523
|
2476 std::string retval; |
|
2117
|
2477 |
|
|
2478 if (stream_ok ("fgets")) |
|
|
2479 retval = rep->gets (max_len, err); |
|
|
2480 |
|
|
2481 return retval; |
|
|
2482 } |
|
|
2483 |
|
3536
|
2484 std::string |
|
2117
|
2485 octave_stream::gets (const octave_value& tc_max_len, bool& err) |
|
|
2486 { |
|
3523
|
2487 std::string retval; |
|
2117
|
2488 |
|
|
2489 err = false; |
|
|
2490 |
|
|
2491 int conv_err = 0; |
|
|
2492 |
|
|
2493 int max_len = convert_to_valid_int (tc_max_len, conv_err); |
|
|
2494 |
|
|
2495 if (conv_err || max_len < 0) |
|
|
2496 { |
|
|
2497 err = true; |
|
|
2498 ::error ("fgets: invalid maximum length specified"); |
|
|
2499 } |
|
|
2500 else |
|
|
2501 retval = gets (max_len, err); |
|
|
2502 |
|
|
2503 return retval; |
|
|
2504 } |
|
|
2505 |
|
|
2506 int |
|
3546
|
2507 octave_stream::seek (std::streamoff offset, std::ios::seek_dir origin) |
|
2117
|
2508 { |
|
|
2509 int retval = -1; |
|
|
2510 |
|
|
2511 if (stream_ok ("fseek")) |
|
|
2512 retval = rep->seek (offset, origin); |
|
|
2513 |
|
|
2514 return retval; |
|
|
2515 } |
|
|
2516 |
|
|
2517 int |
|
|
2518 octave_stream::seek (const octave_value& tc_offset, |
|
|
2519 const octave_value& tc_origin) |
|
|
2520 { |
|
|
2521 int retval = -1; |
|
|
2522 |
|
|
2523 int conv_err = 0; |
|
|
2524 |
|
|
2525 int xoffset = convert_to_valid_int (tc_offset, conv_err); |
|
|
2526 |
|
|
2527 if (! conv_err) |
|
|
2528 { |
|
3538
|
2529 std::ios::seek_dir origin = std::ios::beg; |
|
2117
|
2530 |
|
2341
|
2531 if (tc_origin.is_string ()) |
|
2117
|
2532 { |
|
3523
|
2533 std::string xorigin = tc_origin.string_value (); |
|
2341
|
2534 |
|
|
2535 if (xorigin == "bof") |
|
3538
|
2536 origin = std::ios::beg; |
|
2341
|
2537 else if (xorigin == "cof") |
|
3538
|
2538 origin = std::ios::cur; |
|
2341
|
2539 else if (xorigin == "eof") |
|
3538
|
2540 origin = std::ios::end; |
|
2117
|
2541 else |
|
|
2542 conv_err = -1; |
|
|
2543 } |
|
2341
|
2544 else |
|
|
2545 { |
|
|
2546 int xorigin = convert_to_valid_int (tc_origin, conv_err); |
|
|
2547 |
|
|
2548 if (! conv_err) |
|
|
2549 { |
|
|
2550 if (xorigin == -1) |
|
3538
|
2551 origin = std::ios::beg; |
|
2341
|
2552 else if (xorigin == 0) |
|
3538
|
2553 origin = std::ios::cur; |
|
2341
|
2554 else if (xorigin == 1) |
|
3538
|
2555 origin = std::ios::end; |
|
2341
|
2556 else |
|
|
2557 conv_err = -1; |
|
|
2558 } |
|
|
2559 } |
|
2117
|
2560 |
|
|
2561 if (! conv_err) |
|
|
2562 retval = seek (xoffset, origin); |
|
|
2563 else |
|
|
2564 error ("fseek: invalid value for origin"); |
|
|
2565 } |
|
|
2566 else |
|
|
2567 error ("fseek: invalid value for offset"); |
|
|
2568 |
|
|
2569 return retval; |
|
|
2570 } |
|
|
2571 |
|
|
2572 long |
|
|
2573 octave_stream::tell (void) const |
|
|
2574 { |
|
|
2575 long retval = -1; |
|
|
2576 |
|
|
2577 if (stream_ok ("tell")) |
|
|
2578 retval = rep->tell (); |
|
|
2579 |
|
|
2580 return retval; |
|
|
2581 } |
|
|
2582 |
|
|
2583 int |
|
|
2584 octave_stream::rewind (void) |
|
|
2585 { |
|
|
2586 int retval = -1; |
|
|
2587 |
|
|
2588 if (stream_ok ("frewind")) |
|
|
2589 retval = rep->rewind (); |
|
|
2590 |
|
|
2591 return retval; |
|
|
2592 } |
|
|
2593 |
|
3340
|
2594 bool |
|
|
2595 octave_stream::is_open (void) const |
|
|
2596 { |
|
|
2597 bool retval = false; |
|
|
2598 |
|
|
2599 if (stream_ok ("is_open")) |
|
|
2600 retval = rep->is_open (); |
|
|
2601 |
|
|
2602 return retval; |
|
|
2603 } |
|
|
2604 |
|
|
2605 void |
|
|
2606 octave_stream::close (void) |
|
|
2607 { |
|
|
2608 if (stream_ok ("close")) |
|
|
2609 rep->close (); |
|
|
2610 } |
|
|
2611 |
|
2117
|
2612 octave_value |
|
|
2613 octave_stream::read (const Matrix& size, |
|
2317
|
2614 oct_data_conv::data_type dt, int skip, |
|
|
2615 oct_mach_info::float_format flt_fmt, int& count) |
|
2117
|
2616 { |
|
|
2617 octave_value retval; |
|
|
2618 |
|
|
2619 if (stream_ok ("fread")) |
|
2317
|
2620 retval = rep->read (size, dt, skip, flt_fmt, count); |
|
2117
|
2621 |
|
|
2622 return retval; |
|
|
2623 } |
|
|
2624 |
|
|
2625 int |
|
|
2626 octave_stream::write (const octave_value& data, |
|
2317
|
2627 oct_data_conv::data_type dt, int skip, |
|
|
2628 oct_mach_info::float_format flt_fmt) |
|
2117
|
2629 { |
|
|
2630 int retval = -1; |
|
|
2631 |
|
|
2632 if (stream_ok ("fwrite")) |
|
2317
|
2633 retval = rep->write (data, dt, skip, flt_fmt); |
|
2117
|
2634 |
|
|
2635 return retval; |
|
|
2636 } |
|
|
2637 |
|
|
2638 octave_value |
|
3523
|
2639 octave_stream::scanf (const std::string& fmt, const Matrix& size, int& count) |
|
2117
|
2640 { |
|
|
2641 octave_value retval; |
|
|
2642 |
|
|
2643 if (stream_ok ("fscanf")) |
|
|
2644 retval = rep->scanf (fmt, size, count); |
|
|
2645 |
|
|
2646 return retval; |
|
|
2647 } |
|
|
2648 |
|
2215
|
2649 octave_value_list |
|
3523
|
2650 octave_stream::oscanf (const std::string& fmt) |
|
2215
|
2651 { |
|
|
2652 octave_value_list retval; |
|
|
2653 |
|
|
2654 if (stream_ok ("fscanf")) |
|
|
2655 retval = rep->oscanf (fmt); |
|
|
2656 |
|
|
2657 return retval; |
|
|
2658 } |
|
|
2659 |
|
2117
|
2660 int |
|
3523
|
2661 octave_stream::printf (const std::string& fmt, const octave_value_list& args) |
|
2117
|
2662 { |
|
|
2663 int retval = -1; |
|
|
2664 |
|
|
2665 if (stream_ok ("fprintf")) |
|
|
2666 retval = rep->printf (fmt, args); |
|
|
2667 |
|
|
2668 return retval; |
|
|
2669 } |
|
|
2670 |
|
|
2671 int |
|
3523
|
2672 octave_stream::puts (const std::string& s) |
|
2117
|
2673 { |
|
|
2674 int retval = -1; |
|
|
2675 |
|
|
2676 if (stream_ok ("fputs")) |
|
|
2677 retval = rep->puts (s); |
|
|
2678 |
|
|
2679 return retval; |
|
|
2680 } |
|
|
2681 |
|
|
2682 // XXX FIXME XXX -- maybe this should work for string arrays too. |
|
|
2683 |
|
|
2684 int |
|
|
2685 octave_stream::puts (const octave_value& tc_s) |
|
|
2686 { |
|
|
2687 int retval = -1; |
|
|
2688 |
|
|
2689 if (tc_s.is_string ()) |
|
|
2690 { |
|
3523
|
2691 std::string s = tc_s.string_value (); |
|
2117
|
2692 retval = rep->puts (s); |
|
|
2693 } |
|
|
2694 else |
|
|
2695 error ("fputs: argument must be a string"); |
|
|
2696 |
|
|
2697 return retval; |
|
|
2698 } |
|
|
2699 |
|
|
2700 bool |
|
|
2701 octave_stream::eof (void) const |
|
|
2702 { |
|
|
2703 int retval = -1; |
|
|
2704 |
|
|
2705 if (stream_ok ("feof")) |
|
|
2706 retval = rep->eof (); |
|
|
2707 |
|
|
2708 return retval; |
|
|
2709 } |
|
|
2710 |
|
3536
|
2711 std::string |
|
2435
|
2712 octave_stream::error (bool clear, int& err_num) |
|
2117
|
2713 { |
|
3523
|
2714 std::string retval; |
|
2117
|
2715 |
|
|
2716 if (stream_ok ("ferror", false)) |
|
2435
|
2717 retval = rep->error (clear, err_num); |
|
2117
|
2718 |
|
|
2719 return retval; |
|
|
2720 } |
|
|
2721 |
|
3536
|
2722 std::string |
|
3340
|
2723 octave_stream::name (void) const |
|
2117
|
2724 { |
|
3523
|
2725 std::string retval; |
|
2117
|
2726 |
|
|
2727 if (stream_ok ("name")) |
|
|
2728 retval = rep->name (); |
|
|
2729 |
|
|
2730 return retval; |
|
|
2731 } |
|
|
2732 |
|
|
2733 int |
|
3340
|
2734 octave_stream::mode (void) const |
|
2117
|
2735 { |
|
|
2736 int retval = 0; |
|
|
2737 |
|
|
2738 if (stream_ok ("mode")) |
|
|
2739 retval = rep->mode (); |
|
|
2740 |
|
|
2741 return retval; |
|
|
2742 } |
|
|
2743 |
|
2317
|
2744 oct_mach_info::float_format |
|
3340
|
2745 octave_stream::float_format (void) const |
|
2117
|
2746 { |
|
2317
|
2747 oct_mach_info::float_format retval = oct_mach_info::unknown; |
|
|
2748 |
|
|
2749 if (stream_ok ("float_format")) |
|
|
2750 retval = rep->float_format (); |
|
2117
|
2751 |
|
|
2752 return retval; |
|
|
2753 } |
|
|
2754 |
|
3536
|
2755 std::string |
|
2117
|
2756 octave_stream::mode_as_string (int mode) |
|
|
2757 { |
|
3523
|
2758 std::string retval = "???"; |
|
2117
|
2759 |
|
|
2760 switch (mode) |
|
|
2761 { |
|
3538
|
2762 case std::ios::in: |
|
2117
|
2763 retval = "r"; |
|
|
2764 break; |
|
|
2765 |
|
3538
|
2766 case std::ios::out: |
|
|
2767 case std::ios::out | std::ios::trunc: |
|
2117
|
2768 retval = "w"; |
|
|
2769 break; |
|
|
2770 |
|
3538
|
2771 case std::ios::out | std::ios::app: |
|
2117
|
2772 retval = "a"; |
|
|
2773 break; |
|
|
2774 |
|
3538
|
2775 case std::ios::in | std::ios::out: |
|
2117
|
2776 retval = "r+"; |
|
|
2777 break; |
|
|
2778 |
|
3538
|
2779 case std::ios::in | std::ios::out | std::ios::trunc: |
|
2117
|
2780 retval = "w+"; |
|
|
2781 break; |
|
|
2782 |
|
3538
|
2783 case std::ios::in | std::ios::out | std::ios::app: |
|
2117
|
2784 retval = "a+"; |
|
|
2785 break; |
|
|
2786 |
|
3552
|
2787 case std::ios::in | std::ios::binary: |
|
2117
|
2788 retval = "rb"; |
|
|
2789 break; |
|
|
2790 |
|
3552
|
2791 case std::ios::out | std::ios::binary: |
|
|
2792 case std::ios::out | std::ios::trunc | std::ios::binary: |
|
2117
|
2793 retval = "wb"; |
|
|
2794 break; |
|
|
2795 |
|
3552
|
2796 case std::ios::out | std::ios::app | std::ios::binary: |
|
2117
|
2797 retval = "ab"; |
|
|
2798 break; |
|
|
2799 |
|
3552
|
2800 case std::ios::in | std::ios::out | std::ios::binary: |
|
2117
|
2801 retval = "r+b"; |
|
|
2802 break; |
|
|
2803 |
|
3552
|
2804 case std::ios::in | std::ios::out | std::ios::trunc | std::ios::binary: |
|
2117
|
2805 retval = "w+b"; |
|
|
2806 break; |
|
|
2807 |
|
3552
|
2808 case std::ios::in | std::ios::out | std::ios::app | std::ios::binary: |
|
2117
|
2809 retval = "a+b"; |
|
|
2810 break; |
|
|
2811 |
|
|
2812 default: |
|
|
2813 break; |
|
|
2814 } |
|
|
2815 |
|
|
2816 return retval; |
|
|
2817 } |
|
|
2818 |
|
|
2819 void |
|
|
2820 octave_stream::invalid_stream_error (const char *op) const |
|
|
2821 { |
|
|
2822 ::error ("%s: attempt to use invalid I/O stream", op); |
|
|
2823 } |
|
|
2824 |
|
|
2825 octave_stream_list *octave_stream_list::instance = 0; |
|
|
2826 |
|
2926
|
2827 bool |
|
|
2828 octave_stream_list::instance_ok (void) |
|
|
2829 { |
|
|
2830 bool retval = true; |
|
|
2831 |
|
|
2832 if (! instance) |
|
|
2833 instance = new octave_stream_list (); |
|
|
2834 |
|
|
2835 if (! instance) |
|
|
2836 { |
|
|
2837 ::error ("unable to create stream list object!"); |
|
|
2838 |
|
|
2839 retval = false; |
|
|
2840 } |
|
|
2841 |
|
|
2842 return retval; |
|
|
2843 } |
|
|
2844 |
|
|
2845 octave_value |
|
3340
|
2846 octave_stream_list::insert (const octave_stream& os) |
|
2926
|
2847 { |
|
3340
|
2848 return (instance_ok ()) ? instance->do_insert (os) : octave_value (-1.0); |
|
2926
|
2849 } |
|
|
2850 |
|
3340
|
2851 octave_stream |
|
3523
|
2852 octave_stream_list::lookup (int fid, const std::string& who) |
|
2926
|
2853 { |
|
3341
|
2854 return (instance_ok ()) ? instance->do_lookup (fid, who) : octave_stream (); |
|
2926
|
2855 } |
|
|
2856 |
|
3340
|
2857 octave_stream |
|
3523
|
2858 octave_stream_list::lookup (const octave_value& fid, const std::string& who) |
|
2926
|
2859 { |
|
3341
|
2860 return (instance_ok ()) ? instance->do_lookup (fid, who) : octave_stream (); |
|
2926
|
2861 } |
|
|
2862 |
|
|
2863 int |
|
3523
|
2864 octave_stream_list::remove (int fid, const std::string& who) |
|
2926
|
2865 { |
|
3341
|
2866 return (instance_ok ()) ? instance->do_remove (fid, who) : -1; |
|
2926
|
2867 } |
|
|
2868 |
|
|
2869 int |
|
3523
|
2870 octave_stream_list::remove (const octave_value& fid, const std::string& who) |
|
2926
|
2871 { |
|
3341
|
2872 return (instance_ok ()) ? instance->do_remove (fid, who) : -1; |
|
2926
|
2873 } |
|
|
2874 |
|
|
2875 void |
|
|
2876 octave_stream_list::clear (void) |
|
|
2877 { |
|
|
2878 if (instance) |
|
|
2879 instance->do_clear (); |
|
|
2880 } |
|
|
2881 |
|
|
2882 string_vector |
|
|
2883 octave_stream_list::get_info (int fid) |
|
|
2884 { |
|
|
2885 return (instance_ok ()) ? instance->do_get_info (fid) : string_vector (); |
|
|
2886 } |
|
|
2887 |
|
|
2888 string_vector |
|
|
2889 octave_stream_list::get_info (const octave_value& fid) |
|
|
2890 { |
|
|
2891 return (instance_ok ()) ? instance->do_get_info (fid) : string_vector (); |
|
|
2892 } |
|
|
2893 |
|
3536
|
2894 std::string |
|
2926
|
2895 octave_stream_list::list_open_files (void) |
|
|
2896 { |
|
3523
|
2897 return (instance_ok ()) ? instance->do_list_open_files () : std::string (); |
|
2926
|
2898 } |
|
|
2899 |
|
|
2900 octave_value |
|
|
2901 octave_stream_list::open_file_numbers (void) |
|
|
2902 { |
|
|
2903 return (instance_ok ()) |
|
|
2904 ? instance->do_open_file_numbers () : octave_value (); |
|
|
2905 } |
|
|
2906 |
|
|
2907 int |
|
|
2908 octave_stream_list::get_file_number (const octave_value& fid) |
|
|
2909 { |
|
|
2910 return (instance_ok ()) ? instance->do_get_file_number (fid) : -1; |
|
|
2911 } |
|
|
2912 |
|
2902
|
2913 octave_value |
|
3340
|
2914 octave_stream_list::do_insert (const octave_stream& os) |
|
2117
|
2915 { |
|
3340
|
2916 octave_value retval; |
|
|
2917 |
|
2902
|
2918 int stream_number = -1; |
|
|
2919 |
|
3340
|
2920 // Insert item in first open slot, increasing size of list if |
|
|
2921 // necessary. |
|
|
2922 |
|
|
2923 for (int i = 0; i < curr_len; i++) |
|
2117
|
2924 { |
|
3340
|
2925 octave_stream tmp = list(i); |
|
|
2926 |
|
|
2927 if (! tmp) |
|
2117
|
2928 { |
|
3340
|
2929 list(i) = os; |
|
|
2930 stream_number = i; |
|
|
2931 break; |
|
2117
|
2932 } |
|
|
2933 } |
|
3340
|
2934 |
|
|
2935 if (stream_number < 0) |
|
|
2936 { |
|
|
2937 int total_len = list.length (); |
|
|
2938 |
|
|
2939 if (curr_len == total_len) |
|
|
2940 list.resize (total_len * 2); |
|
|
2941 |
|
|
2942 list(curr_len) = os; |
|
|
2943 stream_number = curr_len; |
|
|
2944 curr_len++; |
|
|
2945 } |
|
2117
|
2946 |
|
2902
|
2947 return octave_value (os, stream_number); |
|
2117
|
2948 } |
|
|
2949 |
|
3341
|
2950 static void |
|
3523
|
2951 gripe_invalid_file_id (int fid, const std::string& who) |
|
3341
|
2952 { |
|
|
2953 if (who.empty ()) |
|
|
2954 ::error ("invalid stream number = %d", fid); |
|
|
2955 else |
|
|
2956 ::error ("%s: invalid stream number = %d", who.c_str (), fid); |
|
|
2957 } |
|
|
2958 |
|
3340
|
2959 octave_stream |
|
3523
|
2960 octave_stream_list::do_lookup (int fid, const std::string& who) const |
|
2117
|
2961 { |
|
3340
|
2962 octave_stream retval; |
|
2117
|
2963 |
|
|
2964 if (fid >= 0 && fid < curr_len) |
|
3340
|
2965 retval = list(fid); |
|
3341
|
2966 else |
|
|
2967 gripe_invalid_file_id (fid, who); |
|
2117
|
2968 |
|
|
2969 return retval; |
|
|
2970 } |
|
|
2971 |
|
3340
|
2972 octave_stream |
|
3341
|
2973 octave_stream_list::do_lookup (const octave_value& fid, |
|
3523
|
2974 const std::string& who) const |
|
2117
|
2975 { |
|
3340
|
2976 octave_stream retval; |
|
2117
|
2977 |
|
|
2978 int i = get_file_number (fid); |
|
|
2979 |
|
|
2980 if (! error_state) |
|
3341
|
2981 retval = do_lookup (i, who); |
|
2117
|
2982 |
|
|
2983 return retval; |
|
|
2984 } |
|
|
2985 |
|
|
2986 int |
|
3523
|
2987 octave_stream_list::do_remove (int fid, const std::string& who) |
|
2117
|
2988 { |
|
|
2989 int retval = -1; |
|
|
2990 |
|
3531
|
2991 // Can't remove stdin (std::cin), stdout (std::cout), or stderr |
|
|
2992 // (std::cerr). |
|
2117
|
2993 |
|
|
2994 if (fid > 2 && fid < curr_len) |
|
|
2995 { |
|
3340
|
2996 octave_stream os = list(fid); |
|
2117
|
2997 |
|
3341
|
2998 if (os.is_valid ()) |
|
2117
|
2999 { |
|
3340
|
3000 os.close (); |
|
|
3001 list(fid) = octave_stream (); |
|
2117
|
3002 retval = 0; |
|
|
3003 } |
|
3341
|
3004 else |
|
|
3005 gripe_invalid_file_id (fid, who); |
|
2117
|
3006 } |
|
3341
|
3007 else |
|
|
3008 gripe_invalid_file_id (fid, who); |
|
2117
|
3009 |
|
|
3010 return retval; |
|
|
3011 } |
|
|
3012 |
|
|
3013 int |
|
3523
|
3014 octave_stream_list::do_remove (const octave_value& fid, const std::string& who) |
|
2117
|
3015 { |
|
|
3016 int retval = -1; |
|
|
3017 |
|
|
3018 int i = get_file_number (fid); |
|
|
3019 |
|
|
3020 if (! error_state) |
|
3341
|
3021 retval = do_remove (i, who); |
|
2117
|
3022 |
|
|
3023 return retval; |
|
|
3024 } |
|
|
3025 |
|
|
3026 void |
|
|
3027 octave_stream_list::do_clear (void) |
|
|
3028 { |
|
|
3029 // Do flush stdout and stderr. |
|
|
3030 |
|
3340
|
3031 list(0) . flush (); |
|
|
3032 list(1) . flush (); |
|
2117
|
3033 |
|
|
3034 // But don't delete them or stdin. |
|
|
3035 |
|
|
3036 for (int i = 3; i < curr_len; i++) |
|
3340
|
3037 list(i) = octave_stream (); |
|
2117
|
3038 } |
|
|
3039 |
|
|
3040 string_vector |
|
|
3041 octave_stream_list::do_get_info (int fid) const |
|
|
3042 { |
|
|
3043 string_vector retval; |
|
|
3044 |
|
3340
|
3045 octave_stream os = do_lookup (fid); |
|
2117
|
3046 |
|
3341
|
3047 if (os.is_valid ()) |
|
2117
|
3048 { |
|
|
3049 retval.resize (3); |
|
|
3050 |
|
3340
|
3051 retval(0) = os.name (); |
|
|
3052 retval(1) = octave_stream::mode_as_string (os.mode ()); |
|
|
3053 retval(2) = oct_mach_info::float_format_as_string (os.float_format ()); |
|
2117
|
3054 } |
|
|
3055 else |
|
3341
|
3056 ::error ("invalid file id = %d", fid); |
|
2117
|
3057 |
|
|
3058 return retval; |
|
|
3059 } |
|
|
3060 |
|
|
3061 string_vector |
|
|
3062 octave_stream_list::do_get_info (const octave_value& fid) const |
|
|
3063 { |
|
|
3064 string_vector retval; |
|
|
3065 |
|
|
3066 int conv_err = 0; |
|
|
3067 |
|
|
3068 int int_fid = convert_to_valid_int (fid, conv_err); |
|
|
3069 |
|
|
3070 if (! conv_err) |
|
|
3071 retval = do_get_info (int_fid); |
|
|
3072 else |
|
2915
|
3073 ::error ("file id must be a file object or integer value"); |
|
2117
|
3074 |
|
|
3075 return retval; |
|
|
3076 } |
|
|
3077 |
|
3536
|
3078 std::string |
|
2117
|
3079 octave_stream_list::do_list_open_files (void) const |
|
|
3080 { |
|
3523
|
3081 std::string retval; |
|
2117
|
3082 |
|
|
3083 // XXX FIXME XXX -- this should probably be converted to use sstream |
|
|
3084 // when that is available. |
|
3523
|
3085 std::ostrstream buf; |
|
2117
|
3086 |
|
|
3087 buf << "\n" |
|
|
3088 << " number mode arch name\n" |
|
|
3089 << " ------ ---- ---- ----\n"; |
|
|
3090 |
|
|
3091 for (int i = 0; i < curr_len; i++) |
|
|
3092 { |
|
3340
|
3093 octave_stream os = list(i); |
|
2117
|
3094 |
|
|
3095 if (os) |
|
|
3096 { |
|
3523
|
3097 std::string mode = octave_stream::mode_as_string (os.mode ()); |
|
|
3098 |
|
|
3099 std::string arch = |
|
3340
|
3100 oct_mach_info::float_format_as_string (os.float_format ()); |
|
|
3101 |
|
3523
|
3102 std::string name = os.name (); |
|
2117
|
3103 |
|
3013
|
3104 buf << " " |
|
3559
|
3105 << std::setiosflags (std::ios::right) |
|
|
3106 << std::setw (4) << i << " " |
|
|
3107 << std::setiosflags (std::ios::left) |
|
|
3108 << std::setw (3) << mode.c_str () << " " |
|
|
3109 << std::setw (9) << arch.c_str () << " " |
|
3013
|
3110 << name << "\n"; |
|
2117
|
3111 } |
|
|
3112 } |
|
|
3113 |
|
3538
|
3114 buf << "\n" << std::ends; |
|
2117
|
3115 |
|
|
3116 char *tmp = buf.str (); |
|
|
3117 |
|
|
3118 retval = tmp; |
|
|
3119 |
|
|
3120 delete [] tmp; |
|
|
3121 |
|
|
3122 return retval; |
|
|
3123 } |
|
|
3124 |
|
|
3125 octave_value |
|
|
3126 octave_stream_list::do_open_file_numbers (void) const |
|
|
3127 { |
|
|
3128 Matrix retval (1, curr_len, 0.0); |
|
|
3129 |
|
|
3130 int num_open = 0; |
|
|
3131 |
|
|
3132 // Skip stdin, stdout, and stderr. |
|
|
3133 |
|
|
3134 for (int i = 3; i < curr_len; i++) |
|
|
3135 { |
|
3340
|
3136 if (list(i)) |
|
2117
|
3137 retval (0, num_open++) = i; |
|
|
3138 } |
|
|
3139 |
|
|
3140 retval.resize ((num_open > 0), num_open); |
|
|
3141 |
|
|
3142 return retval; |
|
|
3143 } |
|
|
3144 |
|
|
3145 int |
|
2609
|
3146 octave_stream_list::do_get_file_number (const octave_value& fid) const |
|
2117
|
3147 { |
|
|
3148 int retval = -1; |
|
|
3149 |
|
|
3150 if (fid.is_string ()) |
|
|
3151 { |
|
3523
|
3152 std::string nm = fid.string_value (); |
|
2117
|
3153 |
|
3531
|
3154 // stdin (std::cin), stdout (std::cout), and stderr (std::cerr) |
|
|
3155 // are unnamed. |
|
2117
|
3156 |
|
|
3157 for (int i = 3; i < curr_len; i++) |
|
|
3158 { |
|
3340
|
3159 octave_stream os = list(i); |
|
|
3160 |
|
|
3161 if (os && os.name () == nm) |
|
2117
|
3162 { |
|
|
3163 retval = i; |
|
|
3164 break; |
|
|
3165 } |
|
|
3166 } |
|
|
3167 } |
|
|
3168 else |
|
|
3169 { |
|
|
3170 int conv_err = 0; |
|
|
3171 |
|
|
3172 int int_fid = convert_to_valid_int (fid, conv_err); |
|
|
3173 |
|
|
3174 if (conv_err) |
|
3523
|
3175 ::error ("file id must be a file object, std::string, or integer value"); |
|
2117
|
3176 else |
|
|
3177 retval = int_fid; |
|
|
3178 } |
|
|
3179 |
|
|
3180 return retval; |
|
|
3181 } |
|
|
3182 |
|
|
3183 /* |
|
|
3184 ;;; Local Variables: *** |
|
|
3185 ;;; mode: C++ *** |
|
|
3186 ;;; End: *** |
|
|
3187 */ |
