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1 /* |
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2 |
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3 Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, |
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4 2005, 2006, 2007 John W. Eaton |
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5 |
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6 This file is part of Octave. |
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7 |
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8 Octave is free software; you can redistribute it and/or modify it |
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9 under the terms of the GNU General Public License as published by the |
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10 Free Software Foundation; either version 3 of the License, or (at your |
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11 option) any later version. |
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12 |
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13 Octave is distributed in the hope that it will be useful, but WITHOUT |
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14 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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15 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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16 for more details. |
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17 |
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18 You should have received a copy of the GNU General Public License |
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19 along with Octave; see the file COPYING. If not, see |
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20 <http://www.gnu.org/licenses/>. |
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21 |
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22 */ |
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23 |
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24 #ifdef HAVE_CONFIG_H |
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25 #include <config.h> |
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26 #endif |
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27 |
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3268
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28 #include <cassert> |
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29 #include <cstring> |
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30 |
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3503
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31 #include <iomanip> |
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32 #include <fstream> |
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33 #include <sstream> |
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3535
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34 #include <string> |
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35 |
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4944
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36 #include <Array.h> |
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37 #include <Array2.h> |
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38 #include <Array3.h> |
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39 |
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40 #include <Array.cc> |
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41 |
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42 #include "byte-swap.h" |
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2117
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43 #include "lo-ieee.h" |
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44 #include "lo-mappers.h" |
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45 #include "lo-utils.h" |
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46 #include "str-vec.h" |
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4153
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47 #include "quit.h" |
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48 |
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49 #include "error.h" |
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7352
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50 #include "gripes.h" |
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3342
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51 #include "input.h" |
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3775
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52 #include "oct-stdstrm.h" |
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53 #include "oct-stream.h" |
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2877
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54 #include "oct-obj.h" |
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55 #include "utils.h" |
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56 |
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57 // Possible values for conv_err: |
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58 // |
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59 // 1 : not a real scalar |
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2902
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60 // 2 : value is NaN |
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61 // 3 : value is not an integer |
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62 |
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63 static int |
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64 convert_to_valid_int (const octave_value& tc, int& conv_err) |
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65 { |
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66 int retval = 0; |
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67 |
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68 conv_err = 0; |
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69 |
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2902
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70 double dval = tc.double_value (); |
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71 |
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72 if (! error_state) |
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73 { |
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74 if (! lo_ieee_isnan (dval)) |
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75 { |
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2902
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76 int ival = NINT (dval); |
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77 |
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78 if (ival == dval) |
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79 retval = ival; |
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80 else |
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81 conv_err = 3; |
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82 } |
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83 else |
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84 conv_err = 2; |
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85 } |
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86 else |
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87 conv_err = 1; |
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88 |
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89 return retval; |
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90 } |
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91 |
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92 static int |
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93 get_size (double d, const std::string& who) |
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94 { |
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95 int retval = -1; |
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96 |
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97 if (! lo_ieee_isnan (d)) |
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98 { |
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99 if (! xisinf (d)) |
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100 { |
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101 if (d >= 0.0) |
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102 retval = NINT (d); |
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103 else |
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104 ::error ("%s: negative value invalid as size specification", |
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105 who.c_str ()); |
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106 } |
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107 else |
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108 retval = -1; |
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109 } |
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110 else |
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111 ::error ("%s: NaN is invalid as size specification", who.c_str ()); |
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112 |
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113 return retval; |
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114 } |
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115 |
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116 static void |
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117 get_size (const Array<double>& size, octave_idx_type& nr, octave_idx_type& nc, bool& one_elt_size_spec, |
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118 const std::string& who) |
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119 { |
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120 nr = -1; |
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121 nc = -1; |
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122 |
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123 one_elt_size_spec = false; |
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124 |
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125 double dnr = -1.0; |
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126 double dnc = -1.0; |
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127 |
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128 octave_idx_type sz_len = size.length (); |
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129 |
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130 if (sz_len == 1) |
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2601
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131 { |
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132 one_elt_size_spec = true; |
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133 |
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134 dnr = size (0); |
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135 |
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136 dnc = (dnr == 0.0) ? 0.0 : 1.0; |
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2601
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137 } |
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3810
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138 else if (sz_len == 2) |
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139 { |
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140 dnr = size (0); |
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141 |
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142 if (! xisinf (dnr)) |
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143 dnc = size (1); |
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144 else |
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145 ::error ("%s: invalid size specification", who.c_str ()); |
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146 } |
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147 else |
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148 ::error ("%s: invalid size specification", who.c_str ()); |
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149 |
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150 if (! error_state) |
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151 { |
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152 nr = get_size (dnr, who); |
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153 |
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154 if (! error_state && dnc >= 0.0) |
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155 nc = get_size (dnc, who); |
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156 } |
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157 } |
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158 |
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3523
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159 scanf_format_list::scanf_format_list (const std::string& s) |
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160 : nconv (0), curr_idx (0), list (16), buf (0) |
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161 { |
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162 int num_elts = 0; |
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163 |
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164 int n = s.length (); |
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165 |
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166 int i = 0; |
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167 |
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168 int width = 0; |
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169 bool discard = false; |
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170 char modifier = '\0'; |
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171 char type = '\0'; |
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172 |
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173 bool have_more = true; |
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174 |
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175 while (i < n) |
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176 { |
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177 have_more = true; |
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178 |
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179 if (! buf) |
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180 buf = new std::ostringstream (); |
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181 |
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182 if (s[i] == '%') |
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183 { |
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3483
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184 // Process percent-escape conversion type. |
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185 |
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2215
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186 process_conversion (s, i, n, width, discard, type, modifier, |
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187 num_elts); |
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188 have_more = (buf != 0); |
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189 } |
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190 else if (isspace (s[i])) |
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191 { |
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192 type = scanf_format_elt::whitespace_conversion; |
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193 |
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194 width = 0; |
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2117
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195 discard = false; |
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196 modifier = '\0'; |
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197 *buf << " "; |
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198 |
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199 while (++i < n && isspace (s[i])) |
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200 /* skip whitespace */; |
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201 |
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202 add_elt_to_list (width, discard, type, modifier, num_elts); |
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203 |
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204 have_more = false; |
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205 } |
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206 else |
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207 { |
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208 type = scanf_format_elt::literal_conversion; |
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209 |
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210 width = 0; |
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211 discard = false; |
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212 modifier = '\0'; |
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213 |
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214 while (i < n && ! isspace (s[i]) && s[i] != '%') |
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215 *buf << s[i++]; |
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216 |
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217 add_elt_to_list (width, discard, type, modifier, num_elts); |
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218 |
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219 have_more = false; |
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2117
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220 } |
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221 |
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222 if (nconv < 0) |
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223 { |
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224 have_more = false; |
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225 break; |
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226 } |
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227 } |
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228 |
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229 if (have_more) |
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2215
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230 add_elt_to_list (width, discard, type, modifier, num_elts); |
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231 |
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232 list.resize (num_elts); |
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233 |
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234 delete buf; |
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235 } |
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236 |
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237 scanf_format_list::~scanf_format_list (void) |
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238 { |
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5275
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239 octave_idx_type n = list.length (); |
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240 |
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241 for (octave_idx_type i = 0; i < n; i++) |
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2117
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242 { |
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3340
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243 scanf_format_elt *elt = list(i); |
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2117
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244 delete elt; |
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245 } |
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246 } |
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247 |
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248 void |
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2215
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249 scanf_format_list::add_elt_to_list (int width, bool discard, char type, |
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3483
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250 char modifier, int& num_elts, |
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3523
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251 const std::string& char_class) |
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2117
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252 { |
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253 if (buf) |
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254 { |
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5765
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255 std::string text = buf->str (); |
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4051
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256 |
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257 if (! text.empty ()) |
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2117
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258 { |
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4051
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259 scanf_format_elt *elt |
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260 = new scanf_format_elt (text.c_str (), width, discard, type, |
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261 modifier, char_class); |
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262 |
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263 if (num_elts == list.length ()) |
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264 list.resize (2 * num_elts); |
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265 |
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266 list(num_elts++) = elt; |
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2117
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267 } |
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268 |
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269 delete buf; |
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270 buf = 0; |
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271 } |
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272 } |
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273 |
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3535
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274 static std::string |
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3523
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275 expand_char_class (const std::string& s) |
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3483
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276 { |
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3523
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277 std::string retval; |
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3483
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278 |
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279 size_t len = s.length (); |
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280 |
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281 size_t i = 0; |
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282 |
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283 while (i < len) |
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284 { |
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285 unsigned char c = s[i++]; |
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286 |
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287 if (c == '-' && i > 1 && i < len |
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5760
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288 && static_cast<unsigned char> (s[i-2]) <= static_cast<unsigned char> (s[i])) |
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3483
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289 { |
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290 // Add all characters from the range except the first (we |
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291 // already added it below). |
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292 |
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293 for (c = s[i-2]+1; c < s[i]; c++) |
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294 retval += c; |
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295 } |
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296 else |
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297 { |
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298 // Add the character to the class. Only add '-' if it is |
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299 // the last character in the class. |
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300 |
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301 if (c != '-' || i == len) |
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302 retval += c; |
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303 } |
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304 } |
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305 |
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306 return retval; |
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307 } |
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308 |
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2117
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309 void |
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3523
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310 scanf_format_list::process_conversion (const std::string& s, int& i, int n, |
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2215
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311 int& width, bool& discard, char& type, |
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2117
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312 char& modifier, int& num_elts) |
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313 { |
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2215
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314 width = 0; |
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2117
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315 discard = false; |
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316 modifier = '\0'; |
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317 type = '\0'; |
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318 |
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319 *buf << s[i++]; |
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320 |
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321 bool have_width = false; |
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322 |
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323 while (i < n) |
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324 { |
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325 switch (s[i]) |
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326 { |
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327 case '*': |
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328 if (discard) |
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329 nconv = -1; |
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330 else |
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331 { |
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332 discard = true; |
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333 *buf << s[i++]; |
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334 } |
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335 break; |
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336 |
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337 case '0': case '1': case '2': case '3': case '4': |
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338 case '5': case '6': case '7': case '8': case '9': |
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339 if (have_width) |
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340 nconv = -1; |
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341 else |
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342 { |
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2215
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343 char c = s[i++]; |
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344 width = width * 10 + c - '0'; |
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2117
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345 have_width = true; |
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2215
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346 *buf << c; |
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2117
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347 while (i < n && isdigit (s[i])) |
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2215
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348 { |
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349 c = s[i++]; |
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350 width = width * 10 + c - '0'; |
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351 *buf << c; |
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352 } |
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2117
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353 } |
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354 break; |
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355 |
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356 case 'h': case 'l': case 'L': |
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357 if (modifier != '\0') |
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358 nconv = -1; |
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359 else |
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2663
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360 modifier = s[i++]; |
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2117
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361 break; |
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362 |
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363 case 'd': case 'i': case 'o': case 'u': case 'x': |
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364 if (modifier == 'L') |
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365 { |
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366 nconv = -1; |
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367 break; |
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368 } |
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369 goto fini; |
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370 |
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371 case 'e': case 'f': case 'g': |
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372 if (modifier == 'h') |
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373 { |
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374 nconv = -1; |
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375 break; |
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376 } |
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2663
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377 |
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378 // No float or long double conversions, thanks. |
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379 *buf << 'l'; |
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380 |
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381 goto fini; |
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382 |
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383 case 'c': case 's': case 'p': case '%': case '[': |
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384 if (modifier != '\0') |
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385 { |
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386 nconv = -1; |
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387 break; |
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388 } |
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389 goto fini; |
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390 |
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391 fini: |
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392 { |
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2215
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393 if (finish_conversion (s, i, n, width, discard, type, |
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2117
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394 modifier, num_elts) == 0) |
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395 return; |
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396 } |
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397 break; |
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398 |
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399 default: |
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400 nconv = -1; |
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401 break; |
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402 } |
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403 |
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404 if (nconv < 0) |
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405 break; |
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406 } |
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407 |
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408 nconv = -1; |
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409 } |
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410 |
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411 int |
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3523
|
412 scanf_format_list::finish_conversion (const std::string& s, int& i, int n, |
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2215
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413 int& width, bool discard, char& type, |
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2117
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414 char modifier, int& num_elts) |
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415 { |
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416 int retval = 0; |
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417 |
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3523
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418 std::string char_class; |
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3483
|
419 |
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3640
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420 int beg_idx = -1; |
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421 int end_idx = -1; |
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422 |
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2117
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423 if (s[i] == '%') |
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3640
|
424 { |
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425 type = '%'; |
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426 *buf << s[i++]; |
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427 } |
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2117
|
428 else |
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429 { |
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430 type = s[i]; |
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431 |
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432 if (s[i] == '[') |
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433 { |
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434 *buf << s[i++]; |
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435 |
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436 if (i < n) |
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437 { |
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3483
|
438 beg_idx = i; |
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439 |
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2117
|
440 if (s[i] == '^') |
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|
441 { |
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|
442 type = '^'; |
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443 *buf << s[i++]; |
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3483
|
444 |
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445 if (i < n) |
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|
446 { |
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|
447 beg_idx = i; |
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|
448 |
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|
449 if (s[i] == ']') |
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|
450 *buf << s[i++]; |
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|
451 } |
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2117
|
452 } |
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453 else if (s[i] == ']') |
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|
454 *buf << s[i++]; |
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|
455 } |
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456 |
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|
457 while (i < n && s[i] != ']') |
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|
458 *buf << s[i++]; |
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459 |
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|
460 if (i < n && s[i] == ']') |
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3483
|
461 { |
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462 end_idx = i-1; |
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|
463 *buf << s[i++]; |
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464 } |
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2117
|
465 |
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466 if (s[i-1] != ']') |
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|
467 retval = nconv = -1; |
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|
468 } |
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|
469 else |
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2215
|
470 *buf << s[i++]; |
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3640
|
471 } |
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|
472 |
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473 nconv++; |
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|
474 |
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|
475 if (nconv > 0) |
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|
476 { |
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|
477 if (beg_idx >= 0 && end_idx >= 0) |
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|
478 char_class = expand_char_class (s.substr (beg_idx, |
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|
479 end_idx - beg_idx + 1)); |
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|
480 |
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|
481 add_elt_to_list (width, discard, type, modifier, num_elts, char_class); |
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2117
|
482 } |
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483 |
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|
484 return retval; |
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|
485 } |
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|
486 |
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|
487 void |
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|
488 scanf_format_list::printme (void) const |
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|
489 { |
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|
490 int n = list.length (); |
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|
491 |
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|
492 for (int i = 0; i < n; i++) |
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|
493 { |
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3340
|
494 scanf_format_elt *elt = list(i); |
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2117
|
495 |
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3531
|
496 std::cerr |
|
|
497 << "width: " << elt->width << "\n" |
|
|
498 << "discard: " << elt->discard << "\n" |
|
|
499 << "type: "; |
|
3483
|
500 |
|
|
501 if (elt->type == scanf_format_elt::literal_conversion) |
|
3531
|
502 std::cerr << "literal text\n"; |
|
3483
|
503 else if (elt->type == scanf_format_elt::whitespace_conversion) |
|
3531
|
504 std::cerr << "whitespace\n"; |
|
3483
|
505 else |
|
3531
|
506 std::cerr << elt->type << "\n"; |
|
|
507 |
|
|
508 std::cerr |
|
|
509 << "modifier: " << elt->modifier << "\n" |
|
|
510 << "char_class: `" << undo_string_escapes (elt->char_class) << "'\n" |
|
|
511 << "text: `" << undo_string_escapes (elt->text) << "'\n\n"; |
|
2117
|
512 } |
|
|
513 } |
|
|
514 |
|
|
515 bool |
|
|
516 scanf_format_list::all_character_conversions (void) |
|
|
517 { |
|
|
518 int n = list.length (); |
|
|
519 |
|
|
520 if (n > 0) |
|
|
521 { |
|
|
522 for (int i = 0; i < n; i++) |
|
|
523 { |
|
3340
|
524 scanf_format_elt *elt = list(i); |
|
2117
|
525 |
|
|
526 switch (elt->type) |
|
|
527 { |
|
3483
|
528 case 'c': case 's': case '%': case '[': case '^': |
|
|
529 case scanf_format_elt::literal_conversion: |
|
|
530 case scanf_format_elt::whitespace_conversion: |
|
2117
|
531 break; |
|
|
532 |
|
|
533 default: |
|
|
534 return false; |
|
|
535 break; |
|
|
536 } |
|
|
537 } |
|
|
538 |
|
|
539 return true; |
|
|
540 } |
|
|
541 else |
|
|
542 return false; |
|
|
543 } |
|
|
544 |
|
|
545 bool |
|
|
546 scanf_format_list::all_numeric_conversions (void) |
|
|
547 { |
|
|
548 int n = list.length (); |
|
|
549 |
|
|
550 if (n > 0) |
|
|
551 { |
|
|
552 for (int i = 0; i < n; i++) |
|
|
553 { |
|
3340
|
554 scanf_format_elt *elt = list(i); |
|
2117
|
555 |
|
|
556 switch (elt->type) |
|
|
557 { |
|
|
558 case 'd': case 'i': case 'o': case 'u': case 'x': |
|
|
559 case 'e': case 'f': case 'g': |
|
|
560 break; |
|
|
561 |
|
|
562 default: |
|
|
563 return false; |
|
|
564 break; |
|
|
565 } |
|
|
566 } |
|
|
567 |
|
|
568 return true; |
|
|
569 } |
|
|
570 else |
|
|
571 return false; |
|
|
572 } |
|
|
573 |
|
|
574 // Ugh again. |
|
|
575 |
|
3523
|
576 printf_format_list::printf_format_list (const std::string& s) |
|
2117
|
577 : nconv (0), curr_idx (0), list (16), buf (0) |
|
|
578 { |
|
|
579 int num_elts = 0; |
|
|
580 |
|
|
581 int n = s.length (); |
|
|
582 |
|
|
583 int i = 0; |
|
|
584 |
|
|
585 int args = 0; |
|
3643
|
586 std::string flags; |
|
3640
|
587 int fw = 0; |
|
|
588 int prec = 0; |
|
2117
|
589 char modifier = '\0'; |
|
|
590 char type = '\0'; |
|
|
591 |
|
|
592 bool have_more = true; |
|
3640
|
593 bool empty_buf = true; |
|
2117
|
594 |
|
4223
|
595 if (n == 0) |
|
2117
|
596 { |
|
4223
|
597 printf_format_elt *elt |
|
|
598 = new printf_format_elt ("", args, fw, prec, flags, type, modifier); |
|
|
599 |
|
|
600 list(num_elts++) = elt; |
|
|
601 |
|
|
602 list.resize (num_elts); |
|
|
603 } |
|
|
604 else |
|
|
605 { |
|
|
606 while (i < n) |
|
3640
|
607 { |
|
4223
|
608 have_more = true; |
|
|
609 |
|
|
610 if (! buf) |
|
|
611 { |
|
5765
|
612 buf = new std::ostringstream (); |
|
4223
|
613 empty_buf = true; |
|
|
614 } |
|
|
615 |
|
|
616 switch (s[i]) |
|
|
617 { |
|
|
618 case '%': |
|
3640
|
619 { |
|
4223
|
620 if (empty_buf) |
|
|
621 { |
|
|
622 process_conversion (s, i, n, args, flags, fw, prec, |
|
|
623 type, modifier, num_elts); |
|
|
624 |
|
|
625 have_more = (buf != 0); |
|
|
626 } |
|
|
627 else |
|
|
628 add_elt_to_list (args, flags, fw, prec, type, modifier, |
|
|
629 num_elts); |
|
3640
|
630 } |
|
4223
|
631 break; |
|
|
632 |
|
|
633 default: |
|
|
634 { |
|
|
635 args = 0; |
|
|
636 flags = ""; |
|
|
637 fw = 0; |
|
|
638 prec = 0; |
|
|
639 modifier = '\0'; |
|
|
640 type = '\0'; |
|
|
641 *buf << s[i++]; |
|
|
642 empty_buf = false; |
|
|
643 } |
|
|
644 break; |
|
|
645 } |
|
|
646 |
|
|
647 if (nconv < 0) |
|
|
648 { |
|
|
649 have_more = false; |
|
|
650 break; |
|
|
651 } |
|
2117
|
652 } |
|
|
653 |
|
4223
|
654 if (have_more) |
|
|
655 add_elt_to_list (args, flags, fw, prec, type, modifier, num_elts); |
|
|
656 |
|
|
657 list.resize (num_elts); |
|
|
658 |
|
|
659 delete buf; |
|
2117
|
660 } |
|
|
661 } |
|
|
662 |
|
|
663 printf_format_list::~printf_format_list (void) |
|
|
664 { |
|
|
665 int n = list.length (); |
|
|
666 |
|
|
667 for (int i = 0; i < n; i++) |
|
|
668 { |
|
3340
|
669 printf_format_elt *elt = list(i); |
|
2117
|
670 delete elt; |
|
|
671 } |
|
|
672 } |
|
|
673 |
|
|
674 void |
|
3640
|
675 printf_format_list::add_elt_to_list (int args, const std::string& flags, |
|
|
676 int fw, int prec, char type, |
|
|
677 char modifier, int& num_elts) |
|
2117
|
678 { |
|
|
679 if (buf) |
|
|
680 { |
|
5765
|
681 std::string text = buf->str (); |
|
4051
|
682 |
|
|
683 if (! text.empty ()) |
|
2117
|
684 { |
|
4051
|
685 printf_format_elt *elt |
|
|
686 = new printf_format_elt (text.c_str (), args, fw, prec, flags, |
|
|
687 type, modifier); |
|
|
688 |
|
|
689 if (num_elts == list.length ()) |
|
|
690 list.resize (2 * num_elts); |
|
|
691 |
|
|
692 list(num_elts++) = elt; |
|
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 |
|
4587
|
714 bool nxt = false; |
|
2117
|
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: |
|
4587
|
726 nxt = true; |
|
2117
|
727 break; |
|
|
728 } |
|
|
729 |
|
4587
|
730 if (nxt) |
|
2117
|
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 { |
|
4587
|
746 int nn = 0; |
|
3643
|
747 std::string tmp = s.substr (i); |
|
4587
|
748 sscanf (tmp.c_str (), "%d%n", &fw, &nn); |
|
3640
|
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 { |
|
4587
|
772 int nn = 0; |
|
3643
|
773 std::string tmp = s.substr (i); |
|
4587
|
774 sscanf (tmp.c_str (), "%d%n", &prec, &nn); |
|
3640
|
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 |
|
3775
|
897 // There is no standard way to get the underlying file descriptor from |
|
|
898 // std::filebuf (nor in the GNU libstdc++-v3 implementation). We cache |
|
|
899 // the descriptor in c_file_ptr_buf, and then extract it here. |
|
|
900 |
|
6757
|
901 c_file_ptr_buf *ibuf |
|
|
902 = is ? dynamic_cast<c_file_ptr_buf *> (is->rdbuf ()) : 0; |
|
|
903 |
|
|
904 c_file_ptr_buf *obuf |
|
|
905 = os ? dynamic_cast<c_file_ptr_buf *> (os->rdbuf ()) : 0; |
|
3775
|
906 |
|
|
907 int i_fid = ibuf ? ibuf->file_number () : -1; |
|
|
908 int o_fid = obuf ? obuf->file_number () : -1; |
|
3145
|
909 |
|
|
910 if (i_fid >= 0) |
|
|
911 { |
|
|
912 if (o_fid >= 0) |
|
|
913 retval = (i_fid == o_fid) ? i_fid : -1; |
|
|
914 else |
|
|
915 retval = i_fid; |
|
|
916 } |
|
|
917 else if (o_fid >= 0) |
|
|
918 retval = o_fid; |
|
|
919 |
|
|
920 return retval; |
|
|
921 } |
|
|
922 |
|
2117
|
923 void |
|
3523
|
924 octave_base_stream::error (const std::string& msg) |
|
2117
|
925 { |
|
|
926 fail = true; |
|
|
927 errmsg = msg; |
|
|
928 } |
|
|
929 |
|
|
930 void |
|
4468
|
931 octave_base_stream::error (const std::string& who, const std::string& msg) |
|
|
932 { |
|
|
933 fail = true; |
|
6296
|
934 errmsg = who + ": " + msg; |
|
4468
|
935 } |
|
|
936 |
|
|
937 void |
|
2117
|
938 octave_base_stream::clear (void) |
|
|
939 { |
|
4889
|
940 fail = false; |
|
|
941 errmsg = ""; |
|
|
942 } |
|
|
943 |
|
|
944 void |
|
|
945 octave_base_stream::clearerr (void) |
|
|
946 { |
|
4888
|
947 std::istream *is = input_stream (); |
|
|
948 std::ostream *os = output_stream (); |
|
|
949 |
|
|
950 if (is) |
|
|
951 is->clear (); |
|
|
952 |
|
|
953 if (os) |
|
|
954 os->clear (); |
|
2117
|
955 } |
|
|
956 |
|
|
957 // Functions that are defined for all input streams (input streams |
|
|
958 // are those that define is). |
|
|
959 |
|
3536
|
960 std::string |
|
5275
|
961 octave_base_stream::do_gets (octave_idx_type max_len, bool& err, |
|
4468
|
962 bool strip_newline, const std::string& who) |
|
2117
|
963 { |
|
3523
|
964 std::string retval; |
|
2117
|
965 |
|
|
966 err = false; |
|
|
967 |
|
3523
|
968 std::istream *isp = input_stream (); |
|
2117
|
969 |
|
|
970 if (isp) |
|
|
971 { |
|
3523
|
972 std::istream& is = *isp; |
|
2117
|
973 |
|
5765
|
974 std::ostringstream buf; |
|
2117
|
975 |
|
|
976 int c = 0; |
|
3553
|
977 int char_count = 0; |
|
6345
|
978 |
|
|
979 if (max_len != 0) |
|
2117
|
980 { |
|
6345
|
981 while (is && (c = is.get ()) != EOF) |
|
2117
|
982 { |
|
6345
|
983 char_count++; |
|
|
984 |
|
|
985 if (c == '\n') |
|
|
986 { |
|
|
987 if (! strip_newline) |
|
|
988 buf << static_cast<char> (c); |
|
|
989 |
|
|
990 break; |
|
|
991 } |
|
|
992 else |
|
5760
|
993 buf << static_cast<char> (c); |
|
6345
|
994 |
|
|
995 if (max_len > 0 && char_count == max_len) |
|
|
996 break; |
|
2117
|
997 } |
|
6345
|
998 } |
|
|
999 |
|
|
1000 if (! is.eof () && char_count > 0) |
|
|
1001 { |
|
|
1002 // GAGME. Matlab seems to check for EOF even if the last |
|
|
1003 // character in a file is a newline character. This is NOT |
|
|
1004 // what the corresponding C-library functions do. |
|
|
1005 int disgusting_compatibility_hack = is.get (); |
|
|
1006 if (! is.eof ()) |
|
|
1007 is.putback (disgusting_compatibility_hack); |
|
2117
|
1008 } |
|
|
1009 |
|
4224
|
1010 if (is.good () || (is.eof () && char_count > 0)) |
|
5765
|
1011 retval = buf.str (); |
|
4224
|
1012 else |
|
|
1013 { |
|
|
1014 err = true; |
|
4468
|
1015 |
|
4224
|
1016 if (is.eof () && char_count == 0) |
|
4468
|
1017 error (who, "at end of file"); |
|
4224
|
1018 else |
|
4468
|
1019 error (who, "read error"); |
|
4224
|
1020 } |
|
2117
|
1021 } |
|
|
1022 else |
|
|
1023 { |
|
|
1024 err = true; |
|
4468
|
1025 invalid_operation (who, "reading"); |
|
2117
|
1026 } |
|
|
1027 |
|
|
1028 return retval; |
|
|
1029 } |
|
|
1030 |
|
3536
|
1031 std::string |
|
5275
|
1032 octave_base_stream::getl (octave_idx_type max_len, bool& err, const std::string& who) |
|
2117
|
1033 { |
|
4468
|
1034 return do_gets (max_len, err, true, who); |
|
2117
|
1035 } |
|
|
1036 |
|
3536
|
1037 std::string |
|
5275
|
1038 octave_base_stream::gets (octave_idx_type max_len, bool& err, const std::string& who) |
|
2117
|
1039 { |
|
4468
|
1040 return do_gets (max_len, err, false, who); |
|
2117
|
1041 } |
|
|
1042 |
|
3779
|
1043 #if defined (__GNUG__) && ! defined (CXX_ISO_COMPLIANT_LIBRARY) |
|
3636
|
1044 |
|
3640
|
1045 #define OCTAVE_SCAN(is, fmt, arg) is.scan ((fmt).text, arg) |
|
3636
|
1046 |
|
|
1047 #else |
|
|
1048 |
|
3640
|
1049 #define OCTAVE_SCAN(is, fmt, arg) octave_scan (is, fmt, arg) |
|
3636
|
1050 |
|
|
1051 template <class T> |
|
|
1052 std::istream& |
|
6767
|
1053 octave_scan_1 (std::istream& is, const scanf_format_elt& fmt, T* valptr) |
|
3636
|
1054 { |
|
3779
|
1055 T& ref = *valptr; |
|
|
1056 |
|
|
1057 switch (fmt.type) |
|
|
1058 { |
|
|
1059 case 'o': |
|
4926
|
1060 is >> std::oct >> ref >> std::dec; |
|
3779
|
1061 break; |
|
|
1062 |
|
|
1063 case 'x': |
|
4926
|
1064 is >> std::hex >> ref >> std::dec; |
|
|
1065 break; |
|
|
1066 |
|
|
1067 case 'i': |
|
|
1068 { |
|
|
1069 int c1 = is.get (); |
|
|
1070 |
|
|
1071 if (! is.eof ()) |
|
|
1072 { |
|
|
1073 if (c1 == '0') |
|
|
1074 { |
|
4927
|
1075 int c2 = is.get (); |
|
4926
|
1076 |
|
|
1077 if (c2 == 'x' || c2 == 'X') |
|
|
1078 is >> std::hex >> ref >> std::dec; |
|
|
1079 else |
|
4927
|
1080 { |
|
|
1081 is.putback (c2); |
|
|
1082 |
|
|
1083 if (c2 == '0' || c2 == '1' || c2 == '2' |
|
|
1084 || c2 == '3' || c2 == '4' || c2 == '5' |
|
|
1085 || c2 == '6' || c2 == '7') |
|
|
1086 is >> std::oct >> ref >> std::dec; |
|
|
1087 else |
|
|
1088 ref = 0; |
|
|
1089 } |
|
4926
|
1090 } |
|
|
1091 else |
|
|
1092 { |
|
|
1093 is.putback (c1); |
|
|
1094 |
|
|
1095 is >> ref; |
|
|
1096 } |
|
|
1097 } |
|
|
1098 } |
|
3779
|
1099 break; |
|
|
1100 |
|
|
1101 default: |
|
|
1102 is >> ref; |
|
|
1103 break; |
|
|
1104 } |
|
3639
|
1105 |
|
3638
|
1106 return is; |
|
3636
|
1107 } |
|
|
1108 |
|
6767
|
1109 template <class T> |
|
|
1110 std::istream& |
|
|
1111 octave_scan (std::istream& is, const scanf_format_elt& fmt, T* valptr) |
|
|
1112 { |
|
|
1113 if (fmt.width) |
|
|
1114 { |
|
|
1115 // Limit input to fmt.width characters by reading into a |
|
|
1116 // temporary stringstream buffer. |
|
|
1117 |
|
|
1118 std::string tmp; |
|
|
1119 |
|
|
1120 is.width (fmt.width); |
|
|
1121 is >> tmp; |
|
|
1122 |
|
|
1123 std::istringstream ss (tmp); |
|
|
1124 |
|
|
1125 octave_scan_1 (ss, fmt, valptr); |
|
|
1126 } |
|
|
1127 else |
|
|
1128 octave_scan_1 (is, fmt, valptr); |
|
|
1129 |
|
|
1130 return is; |
|
|
1131 } |
|
|
1132 |
|
3779
|
1133 // Note that this specialization is only used for reading characters, not |
|
|
1134 // character strings. See BEGIN_S_CONVERSION for details. |
|
|
1135 |
|
|
1136 template<> |
|
|
1137 std::istream& |
|
4661
|
1138 octave_scan<> (std::istream& is, const scanf_format_elt& /* fmt */, |
|
|
1139 char* valptr) |
|
3779
|
1140 { |
|
|
1141 return is >> valptr; |
|
|
1142 } |
|
3636
|
1143 |
|
4595
|
1144 template std::istream& |
|
|
1145 octave_scan (std::istream&, const scanf_format_elt&, int*); |
|
|
1146 |
|
|
1147 template std::istream& |
|
|
1148 octave_scan (std::istream&, const scanf_format_elt&, long int*); |
|
|
1149 |
|
|
1150 template std::istream& |
|
|
1151 octave_scan (std::istream&, const scanf_format_elt&, short int*); |
|
|
1152 |
|
|
1153 template std::istream& |
|
|
1154 octave_scan (std::istream&, const scanf_format_elt&, unsigned int*); |
|
|
1155 |
|
|
1156 template std::istream& |
|
|
1157 octave_scan (std::istream&, const scanf_format_elt&, unsigned long int*); |
|
|
1158 |
|
|
1159 template std::istream& |
|
|
1160 octave_scan (std::istream&, const scanf_format_elt&, unsigned short int*); |
|
|
1161 |
|
|
1162 #if 0 |
|
|
1163 template std::istream& |
|
|
1164 octave_scan (std::istream&, const scanf_format_elt&, float*); |
|
|
1165 #endif |
|
|
1166 |
|
5403
|
1167 template<> |
|
5176
|
1168 std::istream& |
|
5403
|
1169 octave_scan<> (std::istream& is, const scanf_format_elt& fmt, double* valptr) |
|
5176
|
1170 { |
|
|
1171 double& ref = *valptr; |
|
|
1172 |
|
|
1173 switch (fmt.type) |
|
|
1174 { |
|
|
1175 case 'e': |
|
|
1176 case 'f': |
|
|
1177 case 'g': |
|
|
1178 { |
|
5259
|
1179 int c1 = EOF; |
|
5176
|
1180 |
|
|
1181 while (is && (c1 = is.get ()) != EOF && isspace (c1)) |
|
|
1182 /* skip whitespace */; |
|
|
1183 |
|
|
1184 if (c1 != EOF) |
|
|
1185 { |
|
|
1186 if (c1 == 'N') |
|
|
1187 { |
|
|
1188 int c2 = is.get (); |
|
|
1189 |
|
|
1190 if (c2 != EOF) |
|
|
1191 { |
|
|
1192 if (c2 == 'A') |
|
|
1193 { |
|
|
1194 int c3 = is.get (); |
|
|
1195 |
|
|
1196 if (c3 != EOF) |
|
|
1197 { |
|
|
1198 is.putback (c3); |
|
|
1199 |
|
|
1200 if (isspace (c3) || ispunct (c3)) |
|
|
1201 ref = octave_NA; |
|
|
1202 else |
|
|
1203 { |
|
|
1204 is.putback (c2); |
|
|
1205 is.putback (c1); |
|
|
1206 |
|
|
1207 is >> ref; |
|
|
1208 } |
|
|
1209 } |
|
|
1210 else |
|
|
1211 { |
|
|
1212 is.clear (); |
|
|
1213 |
|
|
1214 ref = octave_NA; |
|
|
1215 } |
|
|
1216 } |
|
|
1217 else if (c2 == 'a') |
|
|
1218 { |
|
|
1219 int c3 = is.get (); |
|
|
1220 |
|
|
1221 if (c3 != EOF) |
|
|
1222 { |
|
|
1223 if (c3 == 'N') |
|
|
1224 { |
|
|
1225 int c4 = is.get (); |
|
|
1226 |
|
|
1227 if (c4 != EOF) |
|
|
1228 { |
|
|
1229 is.putback (c4); |
|
|
1230 |
|
|
1231 if (isspace (c4) || ispunct (c4)) |
|
|
1232 ref = octave_NaN; |
|
|
1233 else |
|
|
1234 { |
|
|
1235 is.putback (c3); |
|
|
1236 is.putback (c2); |
|
|
1237 is.putback (c1); |
|
|
1238 |
|
|
1239 is >> ref; |
|
|
1240 } |
|
|
1241 } |
|
|
1242 else |
|
|
1243 { |
|
|
1244 is.clear (); |
|
|
1245 |
|
|
1246 ref = octave_NaN; |
|
|
1247 } |
|
|
1248 } |
|
|
1249 else |
|
|
1250 { |
|
|
1251 is.putback (c3); |
|
|
1252 is.putback (c2); |
|
|
1253 is.putback (c1); |
|
|
1254 |
|
|
1255 is >> ref; |
|
|
1256 } |
|
|
1257 } |
|
|
1258 } |
|
|
1259 else |
|
|
1260 { |
|
|
1261 is.putback (c2); |
|
|
1262 is.putback (c1); |
|
|
1263 |
|
|
1264 is >> ref; |
|
|
1265 } |
|
|
1266 } |
|
|
1267 } |
|
|
1268 else if (c1 == 'I') |
|
|
1269 { |
|
|
1270 int c2 = is.get (); |
|
|
1271 |
|
|
1272 if (c2 != EOF) |
|
|
1273 { |
|
|
1274 if (c2 == 'n') |
|
|
1275 { |
|
|
1276 int c3 = is.get (); |
|
|
1277 |
|
|
1278 if (c3 != EOF) |
|
6483
|
1279 { |
|
|
1280 if (c3 == 'f') |
|
|
1281 { |
|
|
1282 int c4 = is.get (); |
|
|
1283 |
|
|
1284 if (c4 != EOF) |
|
|
1285 { |
|
|
1286 is.putback (c4); |
|
|
1287 |
|
|
1288 if (isspace (c4) || ispunct (c4)) |
|
|
1289 ref = octave_Inf; |
|
|
1290 else |
|
|
1291 { |
|
|
1292 is.putback (c3); |
|
|
1293 is.putback (c2); |
|
|
1294 is.putback (c1); |
|
|
1295 |
|
|
1296 is >> ref; |
|
|
1297 } |
|
|
1298 } |
|
|
1299 else |
|
|
1300 { |
|
|
1301 is.clear (); |
|
|
1302 |
|
5176
|
1303 ref = octave_Inf; |
|
6483
|
1304 } |
|
|
1305 } |
|
|
1306 else |
|
|
1307 { |
|
|
1308 is.putback (c3); |
|
|
1309 is.putback (c2); |
|
|
1310 is.putback (c1); |
|
|
1311 |
|
|
1312 is >> ref; |
|
|
1313 } |
|
|
1314 } |
|
|
1315 else |
|
|
1316 { |
|
|
1317 is.putback (c2); |
|
|
1318 is.putback (c1); |
|
|
1319 |
|
|
1320 is >> ref; |
|
|
1321 } |
|
5176
|
1322 } |
|
|
1323 } |
|
|
1324 } |
|
|
1325 else |
|
|
1326 { |
|
|
1327 is.putback (c1); |
|
|
1328 |
|
|
1329 is >> ref; |
|
|
1330 } |
|
|
1331 } |
|
|
1332 } |
|
|
1333 break; |
|
|
1334 |
|
|
1335 default: |
|
|
1336 panic_impossible (); |
|
|
1337 break; |
|
|
1338 } |
|
|
1339 |
|
|
1340 return is; |
|
|
1341 } |
|
|
1342 |
|
3636
|
1343 #endif |
|
|
1344 |
|
2572
|
1345 template <class T> |
|
|
1346 void |
|
3636
|
1347 do_scanf_conv (std::istream& is, const scanf_format_elt& fmt, |
|
5275
|
1348 T valptr, Matrix& mval, double *data, octave_idx_type& idx, |
|
|
1349 octave_idx_type& conversion_count, octave_idx_type nr, octave_idx_type max_size, |
|
3636
|
1350 bool discard) |
|
2572
|
1351 { |
|
3640
|
1352 OCTAVE_SCAN (is, fmt, valptr); |
|
2572
|
1353 |
|
|
1354 if (is) |
|
|
1355 { |
|
|
1356 if (idx == max_size && ! discard) |
|
|
1357 { |
|
|
1358 max_size *= 2; |
|
|
1359 |
|
|
1360 if (nr > 0) |
|
|
1361 mval.resize (nr, max_size / nr, 0.0); |
|
|
1362 else |
|
|
1363 mval.resize (max_size, 1, 0.0); |
|
|
1364 |
|
|
1365 data = mval.fortran_vec (); |
|
|
1366 } |
|
|
1367 |
|
|
1368 if (! discard) |
|
3268
|
1369 { |
|
3559
|
1370 conversion_count++; |
|
3268
|
1371 data[idx++] = *(valptr); |
|
|
1372 } |
|
2572
|
1373 } |
|
|
1374 } |
|
|
1375 |
|
|
1376 template void |
|
3878
|
1377 do_scanf_conv (std::istream&, const scanf_format_elt&, int*, |
|
5275
|
1378 Matrix&, double*, octave_idx_type&, octave_idx_type&, octave_idx_type, octave_idx_type, bool); |
|
2572
|
1379 |
|
3233
|
1380 template void |
|
3636
|
1381 do_scanf_conv (std::istream&, const scanf_format_elt&, long int*, |
|
5275
|
1382 Matrix&, double*, octave_idx_type&, octave_idx_type&, octave_idx_type, octave_idx_type, bool); |
|
3233
|
1383 |
|
|
1384 template void |
|
3636
|
1385 do_scanf_conv (std::istream&, const scanf_format_elt&, short int*, |
|
5275
|
1386 Matrix&, double*, octave_idx_type&, octave_idx_type&, octave_idx_type, octave_idx_type, bool); |
|
3233
|
1387 |
|
3878
|
1388 template void |
|
|
1389 do_scanf_conv (std::istream&, const scanf_format_elt&, unsigned int*, |
|
5275
|
1390 Matrix&, double*, octave_idx_type&, octave_idx_type&, octave_idx_type, octave_idx_type, bool); |
|
3878
|
1391 |
|
|
1392 template void |
|
|
1393 do_scanf_conv (std::istream&, const scanf_format_elt&, unsigned long int*, |
|
5275
|
1394 Matrix&, double*, octave_idx_type&, octave_idx_type&, octave_idx_type, octave_idx_type, bool); |
|
3878
|
1395 |
|
|
1396 template void |
|
|
1397 do_scanf_conv (std::istream&, const scanf_format_elt&, unsigned short int*, |
|
5275
|
1398 Matrix&, double*, octave_idx_type&, octave_idx_type&, octave_idx_type, octave_idx_type, bool); |
|
3878
|
1399 |
|
2600
|
1400 #if 0 |
|
2572
|
1401 template void |
|
3636
|
1402 do_scanf_conv (std::istream&, const scanf_format_elt&, float*, |
|
5275
|
1403 Matrix&, double*, octave_idx_type&, octave_idx_type&, octave_idx_type, octave_idx_type, bool); |
|
2600
|
1404 #endif |
|
2572
|
1405 |
|
|
1406 template void |
|
3636
|
1407 do_scanf_conv (std::istream&, const scanf_format_elt&, double*, |
|
5275
|
1408 Matrix&, double*, octave_idx_type&, octave_idx_type&, octave_idx_type, octave_idx_type, bool); |
|
2572
|
1409 |
|
3483
|
1410 #define DO_WHITESPACE_CONVERSION() \ |
|
|
1411 do \ |
|
|
1412 { \ |
|
|
1413 int c = EOF; \ |
|
|
1414 \ |
|
|
1415 while (is && (c = is.get ()) != EOF && isspace (c)) \ |
|
|
1416 /* skip whitespace */; \ |
|
|
1417 \ |
|
|
1418 if (c != EOF) \ |
|
|
1419 is.putback (c); \ |
|
|
1420 } \ |
|
|
1421 while (0) |
|
|
1422 |
|
|
1423 #define DO_LITERAL_CONVERSION() \ |
|
|
1424 do \ |
|
|
1425 { \ |
|
|
1426 int c = EOF; \ |
|
|
1427 \ |
|
|
1428 int n = strlen (fmt); \ |
|
|
1429 int i = 0; \ |
|
|
1430 \ |
|
|
1431 while (i < n && is && (c = is.get ()) != EOF) \ |
|
|
1432 { \ |
|
5326
|
1433 if (c == static_cast<unsigned char> (fmt[i])) \ |
|
3483
|
1434 { \ |
|
|
1435 i++; \ |
|
|
1436 continue; \ |
|
|
1437 } \ |
|
|
1438 else \ |
|
|
1439 { \ |
|
|
1440 is.putback (c); \ |
|
|
1441 break; \ |
|
|
1442 } \ |
|
|
1443 } \ |
|
|
1444 \ |
|
|
1445 if (i != n) \ |
|
3538
|
1446 is.setstate (std::ios::failbit); \ |
|
3483
|
1447 } \ |
|
|
1448 while (0) |
|
|
1449 |
|
3640
|
1450 #define DO_PCT_CONVERSION() \ |
|
|
1451 do \ |
|
|
1452 { \ |
|
|
1453 int c = is.get (); \ |
|
|
1454 \ |
|
|
1455 if (c != EOF) \ |
|
|
1456 { \ |
|
|
1457 if (c != '%') \ |
|
|
1458 { \ |
|
|
1459 is.putback (c); \ |
|
|
1460 is.setstate (std::ios::failbit); \ |
|
|
1461 } \ |
|
|
1462 } \ |
|
|
1463 else \ |
|
|
1464 is.setstate (std::ios::failbit); \ |
|
|
1465 } \ |
|
|
1466 while (0) |
|
|
1467 |
|
3483
|
1468 #define BEGIN_C_CONVERSION() \ |
|
3538
|
1469 is.unsetf (std::ios::skipws); \ |
|
3483
|
1470 \ |
|
|
1471 int width = elt->width ? elt->width : 1; \ |
|
|
1472 \ |
|
4051
|
1473 char *tbuf = new char[width + 1]; \ |
|
3483
|
1474 \ |
|
|
1475 int c = EOF; \ |
|
|
1476 int n = 0; \ |
|
|
1477 \ |
|
|
1478 while (is && n < width && (c = is.get ()) != EOF) \ |
|
5760
|
1479 tbuf[n++] = static_cast<char> (c); \ |
|
4051
|
1480 \ |
|
|
1481 tbuf[n] = '\0'; \ |
|
3483
|
1482 \ |
|
5266
|
1483 if (n > 0 && c == EOF) \ |
|
|
1484 is.clear (); \ |
|
|
1485 \ |
|
4051
|
1486 std::string tmp = tbuf; \ |
|
|
1487 \ |
|
|
1488 delete [] tbuf |
|
3483
|
1489 |
|
|
1490 // For a `%s' format, skip initial whitespace and then read until the |
|
5338
|
1491 // next whitespace character or until WIDTH characters have been read. |
|
3483
|
1492 #define BEGIN_S_CONVERSION() \ |
|
|
1493 int width = elt->width; \ |
|
|
1494 \ |
|
4051
|
1495 std::string tmp; \ |
|
3483
|
1496 \ |
|
|
1497 do \ |
|
|
1498 { \ |
|
|
1499 if (width) \ |
|
5338
|
1500 { \ |
|
|
1501 char *tbuf = new char [width+1]; \ |
|
|
1502 \ |
|
|
1503 int c = EOF; \ |
|
|
1504 \ |
|
|
1505 int n = 0; \ |
|
|
1506 \ |
|
|
1507 while (is && (c = is.get ()) != EOF) \ |
|
|
1508 { \ |
|
|
1509 if (! isspace (c)) \ |
|
|
1510 { \ |
|
|
1511 tbuf[n++] = static_cast<char> (c); \ |
|
|
1512 break; \ |
|
|
1513 } \ |
|
|
1514 } \ |
|
4051
|
1515 \ |
|
5338
|
1516 while (is && n < width && (c = is.get ()) != EOF) \ |
|
|
1517 { \ |
|
|
1518 if (isspace (c)) \ |
|
|
1519 { \ |
|
|
1520 is.putback (c); \ |
|
|
1521 break; \ |
|
|
1522 } \ |
|
|
1523 else \ |
|
|
1524 tbuf[n++] = static_cast<char> (c); \ |
|
|
1525 } \ |
|
3483
|
1526 \ |
|
5338
|
1527 tbuf[n] = '\0'; \ |
|
|
1528 \ |
|
|
1529 if (n > 0 && c == EOF) \ |
|
|
1530 is.clear (); \ |
|
|
1531 \ |
|
4051
|
1532 tmp = tbuf; \ |
|
5338
|
1533 \ |
|
4051
|
1534 delete [] tbuf; \ |
|
5338
|
1535 } \ |
|
3483
|
1536 else \ |
|
5338
|
1537 { \ |
|
|
1538 is >> std::ws >> tmp; \ |
|
|
1539 } \ |
|
3483
|
1540 } \ |
|
|
1541 while (0) |
|
|
1542 |
|
|
1543 // This format must match a nonempty sequence of characters. |
|
|
1544 #define BEGIN_CHAR_CLASS_CONVERSION() \ |
|
|
1545 int width = elt->width; \ |
|
|
1546 \ |
|
4051
|
1547 std::string tmp; \ |
|
3483
|
1548 \ |
|
|
1549 do \ |
|
|
1550 { \ |
|
|
1551 if (width) \ |
|
|
1552 { \ |
|
4051
|
1553 char *tbuf = new char[width+1]; \ |
|
|
1554 \ |
|
|
1555 OCTAVE_SCAN (is, *elt, tbuf); \ |
|
3483
|
1556 \ |
|
4051
|
1557 tbuf[width] = '\0'; \ |
|
|
1558 tmp = tbuf; \ |
|
|
1559 delete [] tbuf; \ |
|
3483
|
1560 } \ |
|
|
1561 else \ |
|
|
1562 { \ |
|
5765
|
1563 std::ostringstream buf; \ |
|
3483
|
1564 \ |
|
3523
|
1565 std::string char_class = elt->char_class; \ |
|
3483
|
1566 \ |
|
|
1567 int c = EOF; \ |
|
|
1568 \ |
|
|
1569 if (elt->type == '[') \ |
|
|
1570 { \ |
|
|
1571 while (is && (c = is.get ()) != EOF \ |
|
|
1572 && char_class.find (c) != NPOS) \ |
|
5760
|
1573 buf << static_cast<char> (c); \ |
|
3483
|
1574 } \ |
|
|
1575 else \ |
|
|
1576 { \ |
|
|
1577 while (is && (c = is.get ()) != EOF \ |
|
|
1578 && char_class.find (c) == NPOS) \ |
|
5760
|
1579 buf << static_cast<char> (c); \ |
|
3483
|
1580 } \ |
|
|
1581 \ |
|
|
1582 if (c != EOF) \ |
|
|
1583 is.putback (c); \ |
|
|
1584 \ |
|
5765
|
1585 tmp = buf.str (); \ |
|
3483
|
1586 \ |
|
4051
|
1587 if (tmp.empty ()) \ |
|
3538
|
1588 is.setstate (std::ios::failbit); \ |
|
3483
|
1589 } \ |
|
|
1590 } \ |
|
|
1591 while (0) |
|
|
1592 |
|
3410
|
1593 #define FINISH_CHARACTER_CONVERSION() \ |
|
|
1594 do \ |
|
|
1595 { \ |
|
4051
|
1596 width = tmp.length (); \ |
|
3410
|
1597 \ |
|
|
1598 if (is) \ |
|
|
1599 { \ |
|
|
1600 int i = 0; \ |
|
|
1601 \ |
|
|
1602 if (! discard) \ |
|
|
1603 { \ |
|
|
1604 conversion_count++; \ |
|
|
1605 \ |
|
|
1606 while (i < width && tmp[i] != '\0') \ |
|
|
1607 { \ |
|
|
1608 if (data_index == max_size) \ |
|
|
1609 { \ |
|
|
1610 max_size *= 2; \ |
|
|
1611 \ |
|
4420
|
1612 if (all_char_conv) \ |
|
3410
|
1613 { \ |
|
4420
|
1614 if (one_elt_size_spec) \ |
|
3410
|
1615 mval.resize (1, max_size, 0.0); \ |
|
4420
|
1616 else if (nr > 0) \ |
|
|
1617 mval.resize (nr, max_size / nr, 0.0); \ |
|
3410
|
1618 else \ |
|
4420
|
1619 panic_impossible (); \ |
|
3410
|
1620 } \ |
|
4420
|
1621 else if (nr > 0) \ |
|
6970
|
1622 mval.resize (nr, max_size / nr, 0.0); \ |
|
4420
|
1623 else \ |
|
|
1624 mval.resize (max_size, 1, 0.0); \ |
|
3410
|
1625 \ |
|
|
1626 data = mval.fortran_vec (); \ |
|
|
1627 } \ |
|
|
1628 \ |
|
|
1629 data[data_index++] = tmp[i++]; \ |
|
|
1630 } \ |
|
|
1631 } \ |
|
|
1632 } \ |
|
|
1633 } \ |
|
|
1634 while (0) |
|
2117
|
1635 |
|
|
1636 octave_value |
|
|
1637 octave_base_stream::do_scanf (scanf_format_list& fmt_list, |
|
5275
|
1638 octave_idx_type nr, octave_idx_type nc, bool one_elt_size_spec, |
|
|
1639 octave_idx_type& conversion_count, const std::string& who) |
|
2117
|
1640 { |
|
3268
|
1641 conversion_count = 0; |
|
|
1642 |
|
3640
|
1643 int nconv = fmt_list.num_conversions (); |
|
|
1644 |
|
5275
|
1645 octave_idx_type data_index = 0; |
|
2121
|
1646 |
|
2117
|
1647 octave_value retval = Matrix (); |
|
|
1648 |
|
3268
|
1649 if (nr == 0 || nc == 0) |
|
|
1650 { |
|
|
1651 if (one_elt_size_spec) |
|
|
1652 nc = 0; |
|
|
1653 |
|
|
1654 return Matrix (nr, nc, 0.0); |
|
|
1655 } |
|
|
1656 |
|
3523
|
1657 std::istream *isp = input_stream (); |
|
2117
|
1658 |
|
|
1659 bool all_char_conv = fmt_list.all_character_conversions (); |
|
|
1660 |
|
|
1661 Matrix mval; |
|
|
1662 double *data = 0; |
|
5275
|
1663 octave_idx_type max_size = 0; |
|
|
1664 octave_idx_type max_conv = 0; |
|
|
1665 |
|
|
1666 octave_idx_type final_nr = 0; |
|
|
1667 octave_idx_type final_nc = 0; |
|
2117
|
1668 |
|
3268
|
1669 if (all_char_conv) |
|
|
1670 { |
|
4420
|
1671 // Any of these could be resized later (if we have %s |
|
|
1672 // conversions, we may read more than one element for each |
|
|
1673 // conversion). |
|
|
1674 |
|
3268
|
1675 if (one_elt_size_spec) |
|
|
1676 { |
|
3410
|
1677 max_size = 512; |
|
|
1678 mval.resize (1, max_size, 0.0); |
|
|
1679 |
|
3268
|
1680 if (nr > 0) |
|
|
1681 max_conv = nr; |
|
|
1682 } |
|
4420
|
1683 else if (nr > 0) |
|
3268
|
1684 { |
|
4420
|
1685 if (nc > 0) |
|
|
1686 { |
|
|
1687 mval.resize (nr, nc, 0.0); |
|
|
1688 max_size = max_conv = nr * nc; |
|
|
1689 } |
|
|
1690 else |
|
|
1691 { |
|
|
1692 mval.resize (nr, 32, 0.0); |
|
|
1693 max_size = nr * 32; |
|
|
1694 } |
|
3268
|
1695 } |
|
4420
|
1696 else |
|
|
1697 panic_impossible (); |
|
3268
|
1698 } |
|
|
1699 else if (nr > 0) |
|
2117
|
1700 { |
|
|
1701 if (nc > 0) |
|
|
1702 { |
|
4420
|
1703 // Will not resize later. |
|
2117
|
1704 mval.resize (nr, nc, 0.0); |
|
|
1705 max_size = nr * nc; |
|
3268
|
1706 max_conv = max_size; |
|
2117
|
1707 } |
|
|
1708 else |
|
|
1709 { |
|
4420
|
1710 // Maybe resize later. |
|
2117
|
1711 mval.resize (nr, 32, 0.0); |
|
2121
|
1712 max_size = nr * 32; |
|
2117
|
1713 } |
|
|
1714 } |
|
|
1715 else |
|
|
1716 { |
|
4420
|
1717 // Maybe resize later. |
|
2117
|
1718 mval.resize (32, 1, 0.0); |
|
|
1719 max_size = 32; |
|
|
1720 } |
|
|
1721 |
|
4420
|
1722 data = mval.fortran_vec (); |
|
|
1723 |
|
2117
|
1724 if (isp) |
|
|
1725 { |
|
3523
|
1726 std::istream& is = *isp; |
|
2117
|
1727 |
|
|
1728 const scanf_format_elt *elt = fmt_list.first (); |
|
|
1729 |
|
3538
|
1730 std::ios::fmtflags flags = is.flags (); |
|
2213
|
1731 |
|
2117
|
1732 for (;;) |
|
|
1733 { |
|
4153
|
1734 OCTAVE_QUIT; |
|
|
1735 |
|
2117
|
1736 if (elt) |
|
|
1737 { |
|
3268
|
1738 if (max_conv > 0 && conversion_count == max_conv) |
|
|
1739 { |
|
|
1740 if (all_char_conv && one_elt_size_spec) |
|
|
1741 { |
|
|
1742 final_nr = 1; |
|
|
1743 final_nc = data_index; |
|
|
1744 } |
|
|
1745 else |
|
|
1746 { |
|
|
1747 final_nr = nr; |
|
|
1748 final_nc = (data_index - 1) / nr + 1; |
|
|
1749 } |
|
|
1750 |
|
|
1751 break; |
|
|
1752 } |
|
|
1753 else if (data_index == max_size) |
|
2117
|
1754 { |
|
3410
|
1755 max_size *= 2; |
|
|
1756 |
|
4420
|
1757 if (all_char_conv) |
|
2687
|
1758 { |
|
4420
|
1759 if (one_elt_size_spec) |
|
3410
|
1760 mval.resize (1, max_size, 0.0); |
|
4420
|
1761 else if (nr > 0) |
|
|
1762 mval.resize (nr, max_size / nr, 0.0); |
|
3410
|
1763 else |
|
4420
|
1764 panic_impossible (); |
|
2687
|
1765 } |
|
4420
|
1766 else if (nr > 0) |
|
6970
|
1767 mval.resize (nr, max_size / nr, 0.0); |
|
4420
|
1768 else |
|
|
1769 mval.resize (max_size, 1, 0.0); |
|
3410
|
1770 |
|
|
1771 data = mval.fortran_vec (); |
|
2117
|
1772 } |
|
|
1773 |
|
|
1774 const char *fmt = elt->text; |
|
|
1775 |
|
|
1776 bool discard = elt->discard; |
|
|
1777 |
|
|
1778 switch (elt->type) |
|
|
1779 { |
|
3483
|
1780 case scanf_format_elt::whitespace_conversion: |
|
|
1781 DO_WHITESPACE_CONVERSION (); |
|
|
1782 break; |
|
|
1783 |
|
|
1784 case scanf_format_elt::literal_conversion: |
|
|
1785 DO_LITERAL_CONVERSION (); |
|
|
1786 break; |
|
|
1787 |
|
2117
|
1788 case '%': |
|
3640
|
1789 DO_PCT_CONVERSION (); |
|
3483
|
1790 break; |
|
2117
|
1791 |
|
3878
|
1792 case 'd': case 'i': |
|
2117
|
1793 { |
|
3233
|
1794 switch (elt->modifier) |
|
|
1795 { |
|
|
1796 case 'h': |
|
|
1797 { |
|
|
1798 short int tmp; |
|
3779
|
1799 do_scanf_conv (is, *elt, &tmp, mval, data, |
|
3268
|
1800 data_index, conversion_count, |
|
3233
|
1801 nr, max_size, discard); |
|
|
1802 } |
|
3483
|
1803 break; |
|
3233
|
1804 |
|
|
1805 case 'l': |
|
|
1806 { |
|
|
1807 long int tmp; |
|
3779
|
1808 do_scanf_conv (is, *elt, &tmp, mval, data, |
|
3268
|
1809 data_index, conversion_count, |
|
3233
|
1810 nr, max_size, discard); |
|
|
1811 } |
|
3483
|
1812 break; |
|
3233
|
1813 |
|
|
1814 default: |
|
|
1815 { |
|
|
1816 int tmp; |
|
3779
|
1817 do_scanf_conv (is, *elt, &tmp, mval, data, |
|
3268
|
1818 data_index, conversion_count, |
|
3233
|
1819 nr, max_size, discard); |
|
|
1820 } |
|
3483
|
1821 break; |
|
3233
|
1822 } |
|
2117
|
1823 } |
|
3483
|
1824 break; |
|
2117
|
1825 |
|
3878
|
1826 case 'o': case 'u': case 'x': |
|
|
1827 { |
|
|
1828 switch (elt->modifier) |
|
|
1829 { |
|
|
1830 case 'h': |
|
|
1831 { |
|
|
1832 unsigned short int tmp; |
|
|
1833 do_scanf_conv (is, *elt, &tmp, mval, data, |
|
|
1834 data_index, conversion_count, |
|
|
1835 nr, max_size, discard); |
|
|
1836 } |
|
|
1837 break; |
|
|
1838 |
|
|
1839 case 'l': |
|
|
1840 { |
|
|
1841 unsigned long int tmp; |
|
|
1842 do_scanf_conv (is, *elt, &tmp, mval, data, |
|
|
1843 data_index, conversion_count, |
|
|
1844 nr, max_size, discard); |
|
|
1845 } |
|
|
1846 break; |
|
|
1847 |
|
|
1848 default: |
|
|
1849 { |
|
|
1850 unsigned int tmp; |
|
|
1851 do_scanf_conv (is, *elt, &tmp, mval, data, |
|
|
1852 data_index, conversion_count, |
|
|
1853 nr, max_size, discard); |
|
|
1854 } |
|
|
1855 break; |
|
|
1856 } |
|
|
1857 } |
|
|
1858 break; |
|
|
1859 |
|
2117
|
1860 case 'e': case 'f': case 'g': |
|
|
1861 { |
|
2600
|
1862 double tmp; |
|
|
1863 |
|
3779
|
1864 do_scanf_conv (is, *elt, &tmp, mval, data, |
|
3268
|
1865 data_index, conversion_count, |
|
2600
|
1866 nr, max_size, discard); |
|
2117
|
1867 } |
|
3483
|
1868 break; |
|
2117
|
1869 |
|
2213
|
1870 case 'c': |
|
3410
|
1871 { |
|
3483
|
1872 BEGIN_C_CONVERSION (); |
|
3410
|
1873 |
|
|
1874 FINISH_CHARACTER_CONVERSION (); |
|
3483
|
1875 |
|
|
1876 is.setf (flags); |
|
3410
|
1877 } |
|
|
1878 break; |
|
2213
|
1879 |
|
2117
|
1880 case 's': |
|
|
1881 { |
|
3483
|
1882 BEGIN_S_CONVERSION (); |
|
3268
|
1883 |
|
3410
|
1884 FINISH_CHARACTER_CONVERSION (); |
|
2117
|
1885 } |
|
3483
|
1886 break; |
|
|
1887 |
|
|
1888 case '[': case '^': |
|
|
1889 { |
|
|
1890 BEGIN_CHAR_CLASS_CONVERSION (); |
|
|
1891 |
|
|
1892 FINISH_CHARACTER_CONVERSION (); |
|
|
1893 } |
|
|
1894 break; |
|
|
1895 |
|
|
1896 case 'p': |
|
4468
|
1897 error ("%s: unsupported format specifier", who.c_str ()); |
|
2117
|
1898 break; |
|
|
1899 |
|
|
1900 default: |
|
4468
|
1901 error ("%s: internal format error", who.c_str ()); |
|
2117
|
1902 break; |
|
|
1903 } |
|
|
1904 |
|
|
1905 if (! ok ()) |
|
|
1906 { |
|
|
1907 break; |
|
|
1908 } |
|
|
1909 else if (! is) |
|
|
1910 { |
|
3268
|
1911 if (all_char_conv) |
|
2117
|
1912 { |
|
3268
|
1913 if (one_elt_size_spec) |
|
|
1914 { |
|
|
1915 final_nr = 1; |
|
|
1916 final_nc = data_index; |
|
|
1917 } |
|
|
1918 else if (data_index > nr) |
|
2117
|
1919 { |
|
2759
|
1920 final_nr = nr; |
|
3268
|
1921 final_nc = (data_index - 1) / nr + 1; |
|
2117
|
1922 } |
|
|
1923 else |
|
|
1924 { |
|
3268
|
1925 final_nr = data_index; |
|
|
1926 final_nc = 1; |
|
|
1927 } |
|
|
1928 } |
|
|
1929 else if (nr > 0) |
|
|
1930 { |
|
|
1931 if (data_index > nr) |
|
|
1932 { |
|
|
1933 final_nr = nr; |
|
|
1934 final_nc = (data_index - 1) / nr + 1; |
|
|
1935 } |
|
|
1936 else |
|
|
1937 { |
|
|
1938 final_nr = data_index; |
|
2117
|
1939 final_nc = 1; |
|
|
1940 } |
|
|
1941 } |
|
|
1942 else |
|
|
1943 { |
|
3268
|
1944 final_nr = data_index; |
|
2759
|
1945 final_nc = 1; |
|
|
1946 } |
|
|
1947 |
|
3337
|
1948 // If it looks like we have a matching failure, then |
|
|
1949 // reset the failbit in the stream state. |
|
|
1950 |
|
3538
|
1951 if (is.rdstate () & std::ios::failbit) |
|
|
1952 is.clear (is.rdstate () & (~std::ios::failbit)); |
|
3337
|
1953 |
|
5775
|
1954 // FIXME -- is this the right thing to do? |
|
3342
|
1955 |
|
|
1956 if (interactive && name () == "stdin") |
|
2759
|
1957 { |
|
|
1958 is.clear (); |
|
|
1959 |
|
|
1960 // Skip to end of line. |
|
|
1961 |
|
|
1962 bool err; |
|
4468
|
1963 do_gets (-1, err, false, who); |
|
2117
|
1964 } |
|
|
1965 |
|
|
1966 break; |
|
|
1967 } |
|
|
1968 } |
|
|
1969 else |
|
|
1970 { |
|
4468
|
1971 error ("%s: internal format error", who.c_str ()); |
|
2117
|
1972 break; |
|
|
1973 } |
|
|
1974 |
|
3640
|
1975 elt = fmt_list.next (nconv > 0); |
|
2117
|
1976 } |
|
|
1977 } |
|
|
1978 |
|
|
1979 if (ok ()) |
|
|
1980 { |
|
2121
|
1981 mval.resize (final_nr, final_nc, 0.0); |
|
2117
|
1982 |
|
3268
|
1983 retval = mval; |
|
|
1984 |
|
2117
|
1985 if (all_char_conv) |
|
5279
|
1986 retval = retval.convert_to_str (false, true); |
|
2117
|
1987 } |
|
|
1988 |
|
|
1989 return retval; |
|
|
1990 } |
|
|
1991 |
|
|
1992 octave_value |
|
3810
|
1993 octave_base_stream::scanf (const std::string& fmt, const Array<double>& size, |
|
5275
|
1994 octave_idx_type& conversion_count, const std::string& who) |
|
2117
|
1995 { |
|
|
1996 octave_value retval = Matrix (); |
|
|
1997 |
|
3559
|
1998 conversion_count = 0; |
|
2117
|
1999 |
|
3523
|
2000 std::istream *isp = input_stream (); |
|
2117
|
2001 |
|
|
2002 if (isp) |
|
|
2003 { |
|
|
2004 scanf_format_list fmt_list (fmt); |
|
|
2005 |
|
3640
|
2006 if (fmt_list.num_conversions () == -1) |
|
4468
|
2007 ::error ("%s: invalid format specified", who.c_str ()); |
|
3640
|
2008 else |
|
2117
|
2009 { |
|
5275
|
2010 octave_idx_type nr = -1; |
|
|
2011 octave_idx_type nc = -1; |
|
3640
|
2012 |
|
|
2013 bool one_elt_size_spec; |
|
|
2014 |
|
4468
|
2015 get_size (size, nr, nc, one_elt_size_spec, who); |
|
3640
|
2016 |
|
|
2017 if (! error_state) |
|
|
2018 retval = do_scanf (fmt_list, nr, nc, one_elt_size_spec, |
|
4468
|
2019 conversion_count, who); |
|
2215
|
2020 } |
|
|
2021 } |
|
|
2022 else |
|
4468
|
2023 invalid_operation (who, "reading"); |
|
2572
|
2024 |
|
|
2025 return retval; |
|
|
2026 } |
|
|
2027 |
|
2712
|
2028 bool |
|
|
2029 octave_base_stream::do_oscanf (const scanf_format_elt *elt, |
|
4468
|
2030 octave_value& retval, const std::string& who) |
|
2572
|
2031 { |
|
2712
|
2032 bool quit = false; |
|
2215
|
2033 |
|
3523
|
2034 std::istream *isp = input_stream (); |
|
2215
|
2035 |
|
|
2036 if (isp) |
|
|
2037 { |
|
3523
|
2038 std::istream& is = *isp; |
|
2215
|
2039 |
|
3538
|
2040 std::ios::fmtflags flags = is.flags (); |
|
2215
|
2041 |
|
|
2042 if (elt) |
|
|
2043 { |
|
|
2044 const char *fmt = elt->text; |
|
|
2045 |
|
|
2046 bool discard = elt->discard; |
|
|
2047 |
|
|
2048 switch (elt->type) |
|
|
2049 { |
|
3483
|
2050 case scanf_format_elt::whitespace_conversion: |
|
|
2051 DO_WHITESPACE_CONVERSION (); |
|
|
2052 break; |
|
|
2053 |
|
|
2054 case scanf_format_elt::literal_conversion: |
|
|
2055 DO_LITERAL_CONVERSION (); |
|
|
2056 break; |
|
|
2057 |
|
2215
|
2058 case '%': |
|
|
2059 { |
|
3640
|
2060 DO_PCT_CONVERSION (); |
|
|
2061 |
|
|
2062 if (! is) |
|
2712
|
2063 quit = true; |
|
3640
|
2064 |
|
2215
|
2065 } |
|
|
2066 break; |
|
|
2067 |
|
3878
|
2068 case 'd': case 'i': |
|
2215
|
2069 { |
|
|
2070 int tmp; |
|
|
2071 |
|
3640
|
2072 if (OCTAVE_SCAN (is, *elt, &tmp)) |
|
2712
|
2073 { |
|
|
2074 if (! discard) |
|
4233
|
2075 retval = tmp; |
|
2712
|
2076 } |
|
|
2077 else |
|
|
2078 quit = true; |
|
2215
|
2079 } |
|
|
2080 break; |
|
|
2081 |
|
3878
|
2082 case 'o': case 'u': case 'x': |
|
|
2083 { |
|
|
2084 long int tmp; |
|
|
2085 |
|
|
2086 if (OCTAVE_SCAN (is, *elt, &tmp)) |
|
|
2087 { |
|
|
2088 if (! discard) |
|
4254
|
2089 retval = tmp; |
|
3878
|
2090 } |
|
|
2091 else |
|
|
2092 quit = true; |
|
|
2093 } |
|
|
2094 break; |
|
|
2095 |
|
2215
|
2096 case 'e': case 'f': case 'g': |
|
|
2097 { |
|
2600
|
2098 double tmp; |
|
|
2099 |
|
3640
|
2100 if (OCTAVE_SCAN (is, *elt, &tmp)) |
|
2712
|
2101 { |
|
|
2102 if (! discard) |
|
|
2103 retval = tmp; |
|
|
2104 } |
|
|
2105 else |
|
|
2106 quit = true; |
|
2215
|
2107 } |
|
|
2108 break; |
|
|
2109 |
|
|
2110 case 'c': |
|
|
2111 { |
|
3483
|
2112 BEGIN_C_CONVERSION (); |
|
|
2113 |
|
|
2114 if (! discard) |
|
|
2115 retval = tmp; |
|
|
2116 |
|
|
2117 if (! is) |
|
2712
|
2118 quit = true; |
|
2215
|
2119 |
|
|
2120 is.setf (flags); |
|
|
2121 } |
|
|
2122 break; |
|
|
2123 |
|
|
2124 case 's': |
|
|
2125 { |
|
3483
|
2126 BEGIN_S_CONVERSION (); |
|
|
2127 |
|
|
2128 if (! discard) |
|
|
2129 retval = tmp; |
|
2572
|
2130 |
|
3268
|
2131 if (! is) |
|
|
2132 quit = true; |
|
2215
|
2133 } |
|
|
2134 break; |
|
|
2135 |
|
3483
|
2136 case '[': case '^': |
|
|
2137 { |
|
|
2138 BEGIN_CHAR_CLASS_CONVERSION (); |
|
|
2139 |
|
|
2140 if (! discard) |
|
|
2141 retval = tmp; |
|
|
2142 |
|
|
2143 if (! is) |
|
|
2144 quit = true; |
|
|
2145 } |
|
|
2146 break; |
|
|
2147 |
|
|
2148 case 'p': |
|
4468
|
2149 error ("%s: unsupported format specifier", who.c_str ()); |
|
2215
|
2150 break; |
|
|
2151 |
|
|
2152 default: |
|
4468
|
2153 error ("%s: internal format error", who.c_str ()); |
|
2215
|
2154 break; |
|
|
2155 } |
|
|
2156 } |
|
|
2157 |
|
|
2158 if (ok () && is.fail ()) |
|
|
2159 { |
|
4468
|
2160 error ("%s: read error", who.c_str ()); |
|
3483
|
2161 |
|
5775
|
2162 // FIXME -- is this the right thing to do? |
|
3342
|
2163 |
|
|
2164 if (interactive && name () == "stdin") |
|
2215
|
2165 { |
|
|
2166 // Skip to end of line. |
|
|
2167 |
|
|
2168 bool err; |
|
4468
|
2169 do_gets (-1, err, false, who); |
|
2215
|
2170 } |
|
|
2171 } |
|
|
2172 } |
|
|
2173 |
|
2712
|
2174 return quit; |
|
2215
|
2175 } |
|
|
2176 |
|
|
2177 octave_value_list |
|
4468
|
2178 octave_base_stream::oscanf (const std::string& fmt, const std::string& who) |
|
2215
|
2179 { |
|
|
2180 octave_value_list retval; |
|
|
2181 |
|
3523
|
2182 std::istream *isp = input_stream (); |
|
2215
|
2183 |
|
|
2184 if (isp) |
|
|
2185 { |
|
3523
|
2186 std::istream& is = *isp; |
|
2215
|
2187 |
|
|
2188 scanf_format_list fmt_list (fmt); |
|
|
2189 |
|
|
2190 int nconv = fmt_list.num_conversions (); |
|
|
2191 |
|
3640
|
2192 if (nconv == -1) |
|
4468
|
2193 ::error ("%s: invalid format specified", who.c_str ()); |
|
3640
|
2194 else |
|
2215
|
2195 { |
|
3640
|
2196 is.clear (); |
|
|
2197 |
|
|
2198 int len = fmt_list.length (); |
|
|
2199 |
|
|
2200 retval.resize (nconv+1, Matrix ()); |
|
|
2201 |
|
|
2202 const scanf_format_elt *elt = fmt_list.first (); |
|
|
2203 |
|
|
2204 int num_values = 0; |
|
|
2205 |
|
|
2206 bool quit = false; |
|
|
2207 |
|
5275
|
2208 for (octave_idx_type i = 0; i < len; i++) |
|
3640
|
2209 { |
|
|
2210 octave_value tmp; |
|
|
2211 |
|
4468
|
2212 quit = do_oscanf (elt, tmp, who); |
|
3640
|
2213 |
|
|
2214 if (quit) |
|
|
2215 break; |
|
|
2216 else |
|
|
2217 { |
|
|
2218 if (tmp.is_defined ()) |
|
|
2219 retval (num_values++) = tmp; |
|
|
2220 |
|
|
2221 if (! ok ()) |
|
|
2222 break; |
|
|
2223 |
|
|
2224 elt = fmt_list.next (nconv > 0); |
|
|
2225 } |
|
|
2226 } |
|
|
2227 |
|
4233
|
2228 retval(nconv) = num_values; |
|
3640
|
2229 |
|
|
2230 if (! quit) |
|
|
2231 { |
|
|
2232 // Pick up any trailing stuff. |
|
|
2233 if (ok () && len > nconv) |
|
|
2234 { |
|
|
2235 octave_value tmp; |
|
3704
|
2236 |
|
|
2237 elt = fmt_list.next (); |
|
|
2238 |
|
4468
|
2239 do_oscanf (elt, tmp, who); |
|
3640
|
2240 } |
|
|
2241 } |
|
2117
|
2242 } |
|
|
2243 } |
|
|
2244 else |
|
4468
|
2245 invalid_operation (who, "reading"); |
|
2117
|
2246 |
|
|
2247 return retval; |
|
|
2248 } |
|
|
2249 |
|
|
2250 // Functions that are defined for all output streams (output streams |
|
|
2251 // are those that define os). |
|
|
2252 |
|
|
2253 int |
|
|
2254 octave_base_stream::flush (void) |
|
|
2255 { |
|
|
2256 int retval = -1; |
|
|
2257 |
|
3523
|
2258 std::ostream *os = output_stream (); |
|
2117
|
2259 |
|
|
2260 if (os) |
|
|
2261 { |
|
|
2262 os->flush (); |
|
|
2263 |
|
|
2264 if (os->good ()) |
|
|
2265 retval = 0; |
|
|
2266 } |
|
|
2267 else |
|
|
2268 invalid_operation ("fflush", "writing"); |
|
|
2269 |
|
|
2270 return retval; |
|
|
2271 } |
|
|
2272 |
|
|
2273 class |
|
|
2274 printf_value_cache |
|
|
2275 { |
|
|
2276 public: |
|
|
2277 |
|
3653
|
2278 enum state { ok, conversion_error }; |
|
2117
|
2279 |
|
7352
|
2280 printf_value_cache (const octave_value_list& args, const std::string& who) |
|
2117
|
2281 : values (args), val_idx (0), elt_idx (0), |
|
|
2282 n_vals (values.length ()), n_elts (0), data (0), |
|
7352
|
2283 curr_state (ok) |
|
|
2284 { |
|
|
2285 for (octave_idx_type i = 0; i < values.length (); i++) |
|
|
2286 { |
|
|
2287 octave_value val = values(i); |
|
|
2288 |
|
|
2289 if (val.is_map () || val.is_cell () || val.is_object () |
|
|
2290 || val.is_list ()) |
|
|
2291 { |
|
|
2292 gripe_wrong_type_arg (who, val); |
|
|
2293 break; |
|
|
2294 } |
|
|
2295 } |
|
|
2296 } |
|
2117
|
2297 |
|
|
2298 ~printf_value_cache (void) { } |
|
|
2299 |
|
|
2300 // Get the current value as a double and advance the internal pointer. |
|
|
2301 double double_value (void); |
|
|
2302 |
|
|
2303 // Get the current value as an int and advance the internal pointer. |
|
|
2304 int int_value (void); |
|
|
2305 |
|
|
2306 // Get the current value as a string and advance the internal pointer. |
|
3523
|
2307 std::string string_value (void); |
|
2117
|
2308 |
|
3145
|
2309 operator bool () const { return (curr_state == ok); } |
|
2117
|
2310 |
|
3653
|
2311 bool exhausted (void) { return (val_idx >= n_vals); } |
|
2117
|
2312 |
|
|
2313 private: |
|
|
2314 |
|
|
2315 const octave_value_list values; |
|
|
2316 int val_idx; |
|
|
2317 int elt_idx; |
|
|
2318 int n_vals; |
|
|
2319 int n_elts; |
|
|
2320 const double *data; |
|
4874
|
2321 NDArray curr_val; |
|
2117
|
2322 state curr_state; |
|
|
2323 |
|
|
2324 // Must create value cache with values! |
|
|
2325 |
|
|
2326 printf_value_cache (void); |
|
|
2327 |
|
|
2328 // No copying! |
|
|
2329 |
|
|
2330 printf_value_cache (const printf_value_cache&); |
|
|
2331 |
|
|
2332 printf_value_cache& operator = (const printf_value_cache&); |
|
|
2333 }; |
|
|
2334 |
|
|
2335 double |
|
|
2336 printf_value_cache::double_value (void) |
|
|
2337 { |
|
|
2338 double retval = 0.0; |
|
|
2339 |
|
3711
|
2340 if (exhausted ()) |
|
|
2341 curr_state = conversion_error; |
|
|
2342 |
|
|
2343 while (! exhausted ()) |
|
2117
|
2344 { |
|
|
2345 if (! data) |
|
|
2346 { |
|
|
2347 octave_value tmp_val = values (val_idx); |
|
|
2348 |
|
5476
|
2349 // Force string conversion here for compatibility. |
|
|
2350 |
|
|
2351 curr_val = tmp_val.array_value (true); |
|
2117
|
2352 |
|
|
2353 if (! error_state) |
|
|
2354 { |
|
|
2355 elt_idx = 0; |
|
|
2356 n_elts = curr_val.length (); |
|
|
2357 data = curr_val.data (); |
|
|
2358 } |
|
|
2359 else |
|
|
2360 { |
|
|
2361 curr_state = conversion_error; |
|
|
2362 break; |
|
|
2363 } |
|
|
2364 } |
|
|
2365 |
|
|
2366 if (elt_idx < n_elts) |
|
|
2367 { |
|
3653
|
2368 retval = data[elt_idx++]; |
|
|
2369 |
|
|
2370 if (elt_idx >= n_elts) |
|
|
2371 { |
|
|
2372 elt_idx = 0; |
|
|
2373 val_idx++; |
|
|
2374 data = 0; |
|
|
2375 } |
|
|
2376 |
|
2117
|
2377 break; |
|
|
2378 } |
|
|
2379 else |
|
|
2380 { |
|
|
2381 val_idx++; |
|
|
2382 data = 0; |
|
3969
|
2383 |
|
|
2384 if (n_elts == 0 && exhausted ()) |
|
|
2385 curr_state = conversion_error; |
|
|
2386 |
|
2117
|
2387 continue; |
|
|
2388 } |
|
|
2389 } |
|
|
2390 |
|
|
2391 return retval; |
|
|
2392 } |
|
|
2393 |
|
|
2394 int |
|
|
2395 printf_value_cache::int_value (void) |
|
|
2396 { |
|
|
2397 int retval = 0; |
|
|
2398 |
|
|
2399 double dval = double_value (); |
|
|
2400 |
|
|
2401 if (! error_state) |
|
|
2402 { |
|
|
2403 if (D_NINT (dval) == dval) |
|
|
2404 retval = NINT (dval); |
|
|
2405 else |
|
|
2406 curr_state = conversion_error; |
|
|
2407 } |
|
|
2408 |
|
|
2409 return retval; |
|
|
2410 } |
|
|
2411 |
|
3536
|
2412 std::string |
|
2117
|
2413 printf_value_cache::string_value (void) |
|
|
2414 { |
|
3523
|
2415 std::string retval; |
|
2117
|
2416 |
|
4425
|
2417 if (exhausted ()) |
|
|
2418 curr_state = conversion_error; |
|
4257
|
2419 else |
|
2117
|
2420 { |
|
4425
|
2421 octave_value tval = values (val_idx++); |
|
|
2422 |
|
|
2423 if (tval.rows () == 1) |
|
|
2424 retval = tval.string_value (); |
|
|
2425 else |
|
|
2426 { |
|
|
2427 // In the name of Matlab compatibility. |
|
|
2428 |
|
|
2429 charMatrix chm = tval.char_matrix_value (); |
|
|
2430 |
|
5275
|
2431 octave_idx_type nr = chm.rows (); |
|
|
2432 octave_idx_type nc = chm.columns (); |
|
4425
|
2433 |
|
|
2434 int k = 0; |
|
|
2435 |
|
|
2436 retval.resize (nr * nc, '\0'); |
|
|
2437 |
|
5275
|
2438 for (octave_idx_type j = 0; j < nc; j++) |
|
|
2439 for (octave_idx_type i = 0; i < nr; i++) |
|
4425
|
2440 retval[k++] = chm(i,j); |
|
|
2441 } |
|
|
2442 |
|
|
2443 if (error_state) |
|
|
2444 curr_state = conversion_error; |
|
2117
|
2445 } |
|
4257
|
2446 |
|
2117
|
2447 return retval; |
|
|
2448 } |
|
|
2449 |
|
|
2450 // Ugh again and again. |
|
|
2451 |
|
2572
|
2452 template <class T> |
|
3620
|
2453 int |
|
3523
|
2454 do_printf_conv (std::ostream& os, const char *fmt, int nsa, int sa_1, |
|
4468
|
2455 int sa_2, T arg, const std::string& who) |
|
2572
|
2456 { |
|
3620
|
2457 int retval = 0; |
|
|
2458 |
|
2572
|
2459 switch (nsa) |
|
|
2460 { |
|
|
2461 case 2: |
|
3640
|
2462 retval = octave_format (os, fmt, sa_1, sa_2, arg); |
|
2572
|
2463 break; |
|
|
2464 |
|
|
2465 case 1: |
|
3640
|
2466 retval = octave_format (os, fmt, sa_1, arg); |
|
2572
|
2467 break; |
|
|
2468 |
|
|
2469 case 0: |
|
3640
|
2470 retval = octave_format (os, fmt, arg); |
|
2572
|
2471 break; |
|
|
2472 |
|
|
2473 default: |
|
4468
|
2474 ::error ("%s: internal error handling format", who.c_str ()); |
|
2572
|
2475 break; |
|
|
2476 } |
|
3620
|
2477 |
|
|
2478 return retval; |
|
2572
|
2479 } |
|
|
2480 |
|
3620
|
2481 template int |
|
4468
|
2482 do_printf_conv (std::ostream&, const char*, int, int, int, int, |
|
|
2483 const std::string&); |
|
|
2484 |
|
|
2485 template int |
|
|
2486 do_printf_conv (std::ostream&, const char*, int, int, int, long, |
|
|
2487 const std::string&); |
|
|
2488 |
|
3878
|
2489 template int |
|
4468
|
2490 do_printf_conv (std::ostream&, const char*, int, int, int, unsigned int, |
|
|
2491 const std::string&); |
|
|
2492 |
|
|
2493 template int |
|
|
2494 do_printf_conv (std::ostream&, const char*, int, int, int, unsigned long, |
|
|
2495 const std::string&); |
|
|
2496 |
|
|
2497 template int |
|
|
2498 do_printf_conv (std::ostream&, const char*, int, int, int, double, |
|
|
2499 const std::string&); |
|
|
2500 |
|
|
2501 template int |
|
|
2502 do_printf_conv (std::ostream&, const char*, int, int, int, const char*, |
|
|
2503 const std::string&); |
|
2117
|
2504 |
|
6492
|
2505 #define DO_DOUBLE_CONV(TQUAL) \ |
|
|
2506 do \ |
|
|
2507 { \ |
|
7199
|
2508 if (val > std::numeric_limits<TQUAL long>::max () \ |
|
|
2509 || val < std::numeric_limits<TQUAL long>::min ()) \ |
|
6492
|
2510 { \ |
|
7199
|
2511 std::string tfmt = fmt; \ |
|
6492
|
2512 \ |
|
7199
|
2513 tfmt.replace (tfmt.rfind (elt->type), 1, ".f"); \ |
|
6492
|
2514 \ |
|
7199
|
2515 if (elt->modifier == 'l') \ |
|
|
2516 tfmt.replace (tfmt.rfind (elt->modifier), 1, ""); \ |
|
|
2517 \ |
|
|
2518 retval += do_printf_conv (os, tfmt.c_str (), nsa, sa_1, sa_2, \ |
|
|
2519 val, who); \ |
|
6492
|
2520 } \ |
|
|
2521 else \ |
|
7199
|
2522 retval += do_printf_conv (os, fmt, nsa, sa_1, sa_2, \ |
|
|
2523 static_cast<TQUAL long> (val), who); \ |
|
6492
|
2524 } \ |
|
|
2525 while (0) |
|
|
2526 |
|
2117
|
2527 int |
|
|
2528 octave_base_stream::do_printf (printf_format_list& fmt_list, |
|
4468
|
2529 const octave_value_list& args, |
|
|
2530 const std::string& who) |
|
2117
|
2531 { |
|
3620
|
2532 int retval = 0; |
|
2117
|
2533 |
|
3640
|
2534 int nconv = fmt_list.num_conversions (); |
|
|
2535 |
|
3523
|
2536 std::ostream *osp = output_stream (); |
|
2117
|
2537 |
|
|
2538 if (osp) |
|
|
2539 { |
|
3523
|
2540 std::ostream& os = *osp; |
|
2117
|
2541 |
|
|
2542 const printf_format_elt *elt = fmt_list.first (); |
|
|
2543 |
|
7352
|
2544 printf_value_cache val_cache (args, who); |
|
|
2545 |
|
|
2546 if (error_state) |
|
|
2547 return retval; |
|
2117
|
2548 |
|
|
2549 for (;;) |
|
|
2550 { |
|
4153
|
2551 OCTAVE_QUIT; |
|
|
2552 |
|
2117
|
2553 if (elt) |
|
|
2554 { |
|
3640
|
2555 // NSA is the number of `star' args to convert. |
|
|
2556 |
|
|
2557 int nsa = (elt->fw < 0) + (elt->prec < 0); |
|
2117
|
2558 |
|
|
2559 int sa_1 = 0; |
|
|
2560 int sa_2 = 0; |
|
|
2561 |
|
|
2562 if (nsa > 0) |
|
|
2563 { |
|
|
2564 sa_1 = val_cache.int_value (); |
|
|
2565 |
|
|
2566 if (! val_cache) |
|
|
2567 break; |
|
|
2568 else |
|
|
2569 { |
|
|
2570 if (nsa > 1) |
|
|
2571 { |
|
|
2572 sa_2 = val_cache.int_value (); |
|
|
2573 |
|
|
2574 if (! val_cache) |
|
|
2575 break; |
|
|
2576 } |
|
|
2577 } |
|
|
2578 } |
|
|
2579 |
|
|
2580 const char *fmt = elt->text; |
|
|
2581 |
|
3640
|
2582 if (elt->type == '%') |
|
|
2583 { |
|
|
2584 os << "%"; |
|
|
2585 retval++; |
|
|
2586 } |
|
|
2587 else if (elt->args == 0 && elt->text) |
|
|
2588 { |
|
|
2589 os << elt->text; |
|
|
2590 retval += strlen (elt->text); |
|
|
2591 } |
|
4257
|
2592 else if (elt->type == 's') |
|
3640
|
2593 { |
|
|
2594 std::string val = val_cache.string_value (); |
|
|
2595 |
|
|
2596 if (val_cache) |
|
|
2597 retval += do_printf_conv (os, fmt, nsa, sa_1, |
|
4468
|
2598 sa_2, val.c_str (), who); |
|
3640
|
2599 else |
|
|
2600 break; |
|
|
2601 } |
|
2117
|
2602 else |
|
|
2603 { |
|
3640
|
2604 double val = val_cache.double_value (); |
|
|
2605 |
|
|
2606 if (val_cache) |
|
2117
|
2607 { |
|
6492
|
2608 if (lo_ieee_isnan (val) || xisinf (val)) |
|
4303
|
2609 { |
|
|
2610 std::string tfmt = fmt; |
|
6865
|
2611 std::string::size_type i1, i2; |
|
|
2612 |
|
|
2613 tfmt.replace ((i1 = tfmt.rfind (elt->type)), |
|
|
2614 1, 1, 's'); |
|
|
2615 |
|
|
2616 if ((i2 = tfmt.rfind ('.')) != NPOS && i2 < i1) |
|
|
2617 { |
|
|
2618 tfmt.erase (i2, i1-i2); |
|
|
2619 if (elt->prec < 0) |
|
|
2620 nsa--; |
|
|
2621 } |
|
6492
|
2622 |
|
|
2623 const char *tval = xisinf (val) |
|
|
2624 ? (val < 0 ? "-Inf" : "Inf") |
|
|
2625 : (lo_ieee_is_NA (val) ? "NA" : "NaN"); |
|
|
2626 |
|
|
2627 retval += do_printf_conv (os, tfmt.c_str (), |
|
|
2628 nsa, sa_1, sa_2, |
|
|
2629 tval, who); |
|
4303
|
2630 } |
|
|
2631 else |
|
3640
|
2632 { |
|
6492
|
2633 char type = elt->type; |
|
|
2634 |
|
|
2635 switch (type) |
|
4303
|
2636 { |
|
|
2637 case 'd': case 'i': case 'c': |
|
7227
|
2638 DO_DOUBLE_CONV (OCTAVE_EMPTY_CPP_ARG); |
|
4303
|
2639 break; |
|
|
2640 |
|
|
2641 case 'o': case 'x': case 'X': case 'u': |
|
6492
|
2642 DO_DOUBLE_CONV (unsigned); |
|
4303
|
2643 break; |
|
|
2644 |
|
|
2645 case 'f': case 'e': case 'E': |
|
|
2646 case 'g': case 'G': |
|
|
2647 retval |
|
|
2648 += do_printf_conv (os, fmt, nsa, sa_1, sa_2, |
|
4468
|
2649 val, who); |
|
4303
|
2650 break; |
|
|
2651 |
|
|
2652 default: |
|
4468
|
2653 error ("%s: invalid format specifier", |
|
|
2654 who.c_str ()); |
|
4303
|
2655 return -1; |
|
|
2656 break; |
|
|
2657 } |
|
3640
|
2658 } |
|
2117
|
2659 } |
|
|
2660 else |
|
3620
|
2661 break; |
|
2117
|
2662 } |
|
|
2663 |
|
3620
|
2664 if (! os) |
|
2117
|
2665 { |
|
4468
|
2666 error ("%s: write error", who.c_str ()); |
|
2117
|
2667 break; |
|
|
2668 } |
|
|
2669 } |
|
|
2670 else |
|
|
2671 { |
|
4468
|
2672 ::error ("%s: internal error handling format", who.c_str ()); |
|
2117
|
2673 retval = -1; |
|
|
2674 break; |
|
|
2675 } |
|
|
2676 |
|
3640
|
2677 elt = fmt_list.next (nconv > 0 && ! val_cache.exhausted ()); |
|
|
2678 |
|
|
2679 if (! elt || (val_cache.exhausted () && elt->args > 0)) |
|
|
2680 break; |
|
|
2681 } |
|
2117
|
2682 } |
|
3640
|
2683 else |
|
4468
|
2684 invalid_operation (who, "writing"); |
|
2117
|
2685 |
|
|
2686 return retval; |
|
|
2687 } |
|
|
2688 |
|
|
2689 int |
|
3640
|
2690 octave_base_stream::printf (const std::string& fmt, |
|
4468
|
2691 const octave_value_list& args, |
|
|
2692 const std::string& who) |
|
2117
|
2693 { |
|
3640
|
2694 int retval = 0; |
|
|
2695 |
|
|
2696 printf_format_list fmt_list (fmt); |
|
|
2697 |
|
|
2698 if (fmt_list.num_conversions () == -1) |
|
4468
|
2699 ::error ("%s: invalid format specified", who.c_str ()); |
|
2117
|
2700 else |
|
4468
|
2701 retval = do_printf (fmt_list, args, who); |
|
2117
|
2702 |
|
|
2703 return retval; |
|
|
2704 } |
|
|
2705 |
|
|
2706 int |
|
4468
|
2707 octave_base_stream::puts (const std::string& s, const std::string& who) |
|
2117
|
2708 { |
|
|
2709 int retval = -1; |
|
|
2710 |
|
3523
|
2711 std::ostream *osp = output_stream (); |
|
2117
|
2712 |
|
|
2713 if (osp) |
|
|
2714 { |
|
3523
|
2715 std::ostream& os = *osp; |
|
2117
|
2716 |
|
|
2717 os << s; |
|
|
2718 |
|
|
2719 if (os) |
|
|
2720 { |
|
5775
|
2721 // FIXME -- why does this seem to be necessary? |
|
2117
|
2722 // Without it, output from a loop like |
|
|
2723 // |
|
|
2724 // for i = 1:100, fputs (stdout, "foo\n"); endfor |
|
|
2725 // |
|
|
2726 // doesn't seem to go to the pager immediately. |
|
|
2727 |
|
|
2728 os.flush (); |
|
|
2729 |
|
|
2730 if (os) |
|
|
2731 retval = 0; |
|
|
2732 else |
|
4468
|
2733 error ("%s: write error", who.c_str ()); |
|
2117
|
2734 } |
|
|
2735 else |
|
4468
|
2736 error ("%s: write error", who.c_str ()); |
|
2117
|
2737 } |
|
|
2738 else |
|
4468
|
2739 invalid_operation (who, "writing"); |
|
2117
|
2740 |
|
|
2741 return retval; |
|
|
2742 } |
|
|
2743 |
|
|
2744 // Return current error message for this stream. |
|
|
2745 |
|
3536
|
2746 std::string |
|
2435
|
2747 octave_base_stream::error (bool clear_err, int& err_num) |
|
2117
|
2748 { |
|
2435
|
2749 err_num = fail ? -1 : 0; |
|
2117
|
2750 |
|
3523
|
2751 std::string tmp = errmsg; |
|
2117
|
2752 |
|
|
2753 if (clear_err) |
|
|
2754 clear (); |
|
|
2755 |
|
|
2756 return tmp; |
|
|
2757 } |
|
|
2758 |
|
|
2759 void |
|
4468
|
2760 octave_base_stream::invalid_operation (const std::string& who, const char *rw) |
|
2117
|
2761 { |
|
4468
|
2762 // Note that this is not ::error () ! |
|
|
2763 |
|
6297
|
2764 error (who, std::string ("stream not open for ") + rw); |
|
2117
|
2765 } |
|
|
2766 |
|
3552
|
2767 octave_stream::octave_stream (octave_base_stream *bs) |
|
3340
|
2768 : rep (bs) |
|
|
2769 { |
|
|
2770 if (rep) |
|
|
2771 rep->count = 1; |
|
|
2772 } |
|
|
2773 |
|
|
2774 octave_stream::~octave_stream (void) |
|
|
2775 { |
|
|
2776 if (rep && --rep->count == 0) |
|
|
2777 delete rep; |
|
|
2778 } |
|
|
2779 |
|
|
2780 octave_stream::octave_stream (const octave_stream& s) |
|
|
2781 : rep (s.rep) |
|
|
2782 { |
|
|
2783 if (rep) |
|
|
2784 rep->count++; |
|
|
2785 } |
|
|
2786 |
|
|
2787 octave_stream& |
|
|
2788 octave_stream::operator = (const octave_stream& s) |
|
|
2789 { |
|
|
2790 if (rep != s.rep) |
|
|
2791 { |
|
|
2792 if (rep && --rep->count == 0) |
|
|
2793 delete rep; |
|
|
2794 |
|
|
2795 rep = s.rep; |
|
|
2796 |
|
|
2797 if (rep) |
|
|
2798 rep->count++; |
|
|
2799 } |
|
|
2800 |
|
|
2801 return *this; |
|
|
2802 } |
|
|
2803 |
|
2117
|
2804 int |
|
|
2805 octave_stream::flush (void) |
|
|
2806 { |
|
|
2807 int retval = -1; |
|
|
2808 |
|
5659
|
2809 if (stream_ok ()) |
|
2117
|
2810 retval = rep->flush (); |
|
|
2811 |
|
|
2812 return retval; |
|
|
2813 } |
|
|
2814 |
|
3536
|
2815 std::string |
|
5275
|
2816 octave_stream::getl (octave_idx_type max_len, bool& err, const std::string& who) |
|
2117
|
2817 { |
|
3523
|
2818 std::string retval; |
|
2117
|
2819 |
|
5659
|
2820 if (stream_ok ()) |
|
4468
|
2821 retval = rep->getl (max_len, err, who); |
|
2117
|
2822 |
|
|
2823 return retval; |
|
|
2824 } |
|
|
2825 |
|
3536
|
2826 std::string |
|
4468
|
2827 octave_stream::getl (const octave_value& tc_max_len, bool& err, |
|
|
2828 const std::string& who) |
|
2117
|
2829 { |
|
3523
|
2830 std::string retval; |
|
2117
|
2831 |
|
|
2832 err = false; |
|
|
2833 |
|
|
2834 int conv_err = 0; |
|
|
2835 |
|
6345
|
2836 int max_len = -1; |
|
|
2837 |
|
|
2838 if (tc_max_len.is_defined ()) |
|
2117
|
2839 { |
|
6345
|
2840 max_len = convert_to_valid_int (tc_max_len, conv_err); |
|
|
2841 |
|
|
2842 if (conv_err || max_len < 0) |
|
|
2843 { |
|
|
2844 err = true; |
|
|
2845 ::error ("%s: invalid maximum length specified", who.c_str ()); |
|
|
2846 } |
|
2117
|
2847 } |
|
6345
|
2848 |
|
|
2849 if (! error_state) |
|
4468
|
2850 retval = getl (max_len, err, who); |
|
2117
|
2851 |
|
|
2852 return retval; |
|
|
2853 } |
|
|
2854 |
|
3536
|
2855 std::string |
|
5275
|
2856 octave_stream::gets (octave_idx_type max_len, bool& err, const std::string& who) |
|
2117
|
2857 { |
|
3523
|
2858 std::string retval; |
|
2117
|
2859 |
|
5659
|
2860 if (stream_ok ()) |
|
4468
|
2861 retval = rep->gets (max_len, err, who); |
|
2117
|
2862 |
|
|
2863 return retval; |
|
|
2864 } |
|
|
2865 |
|
3536
|
2866 std::string |
|
4468
|
2867 octave_stream::gets (const octave_value& tc_max_len, bool& err, |
|
|
2868 const std::string& who) |
|
2117
|
2869 { |
|
3523
|
2870 std::string retval; |
|
2117
|
2871 |
|
|
2872 err = false; |
|
|
2873 |
|
|
2874 int conv_err = 0; |
|
|
2875 |
|
6345
|
2876 int max_len = -1; |
|
|
2877 |
|
|
2878 if (tc_max_len.is_defined ()) |
|
2117
|
2879 { |
|
6345
|
2880 max_len = convert_to_valid_int (tc_max_len, conv_err); |
|
|
2881 |
|
|
2882 if (conv_err || max_len < 0) |
|
|
2883 { |
|
|
2884 err = true; |
|
|
2885 ::error ("%s: invalid maximum length specified", who.c_str ()); |
|
|
2886 } |
|
2117
|
2887 } |
|
6345
|
2888 |
|
|
2889 if (! error_state) |
|
4468
|
2890 retval = gets (max_len, err, who); |
|
2117
|
2891 |
|
|
2892 return retval; |
|
|
2893 } |
|
|
2894 |
|
|
2895 int |
|
4797
|
2896 octave_stream::seek (long offset, int origin) |
|
2117
|
2897 { |
|
5065
|
2898 int status = -1; |
|
2117
|
2899 |
|
5659
|
2900 if (stream_ok ()) |
|
4889
|
2901 { |
|
|
2902 clearerr (); |
|
|
2903 |
|
5065
|
2904 long orig_pos = rep->tell (); |
|
|
2905 |
|
|
2906 status = rep->seek (offset, origin); |
|
|
2907 |
|
|
2908 if (status == 0) |
|
|
2909 { |
|
|
2910 long save_pos = rep->tell (); |
|
|
2911 |
|
|
2912 rep->seek (0, SEEK_END); |
|
|
2913 |
|
|
2914 long pos_eof = rep->tell (); |
|
|
2915 |
|
|
2916 // I don't think save_pos can be less than zero, but we'll |
|
|
2917 // check anyway... |
|
|
2918 |
|
|
2919 if (save_pos > pos_eof || save_pos < 0) |
|
|
2920 { |
|
|
2921 // Seek outside bounds of file. Failure should leave |
|
|
2922 // position unchanged. |
|
|
2923 |
|
|
2924 rep->seek (orig_pos, SEEK_SET); |
|
|
2925 |
|
|
2926 status = -1; |
|
|
2927 } |
|
|
2928 else |
|
|
2929 { |
|
|
2930 // Is it possible for this to fail? We are just |
|
|
2931 // returning to a position after the first successful |
|
|
2932 // seek. |
|
|
2933 |
|
|
2934 rep->seek (save_pos, SEEK_SET); |
|
|
2935 } |
|
|
2936 } |
|
4889
|
2937 } |
|
2117
|
2938 |
|
5065
|
2939 return status; |
|
2117
|
2940 } |
|
|
2941 |
|
|
2942 int |
|
|
2943 octave_stream::seek (const octave_value& tc_offset, |
|
|
2944 const octave_value& tc_origin) |
|
|
2945 { |
|
|
2946 int retval = -1; |
|
|
2947 |
|
4797
|
2948 long xoffset = tc_offset.long_value (true); |
|
4645
|
2949 |
|
|
2950 if (! error_state) |
|
2117
|
2951 { |
|
4645
|
2952 int conv_err = 0; |
|
|
2953 |
|
4797
|
2954 int origin = SEEK_SET; |
|
2117
|
2955 |
|
2341
|
2956 if (tc_origin.is_string ()) |
|
2117
|
2957 { |
|
3523
|
2958 std::string xorigin = tc_origin.string_value (); |
|
2341
|
2959 |
|
|
2960 if (xorigin == "bof") |
|
4797
|
2961 origin = SEEK_SET; |
|
2341
|
2962 else if (xorigin == "cof") |
|
4797
|
2963 origin = SEEK_CUR; |
|
2341
|
2964 else if (xorigin == "eof") |
|
4797
|
2965 origin = SEEK_END; |
|
2117
|
2966 else |
|
|
2967 conv_err = -1; |
|
|
2968 } |
|
2341
|
2969 else |
|
|
2970 { |
|
|
2971 int xorigin = convert_to_valid_int (tc_origin, conv_err); |
|
|
2972 |
|
|
2973 if (! conv_err) |
|
|
2974 { |
|
|
2975 if (xorigin == -1) |
|
4797
|
2976 origin = SEEK_SET; |
|
2341
|
2977 else if (xorigin == 0) |
|
4797
|
2978 origin = SEEK_CUR; |
|
2341
|
2979 else if (xorigin == 1) |
|
4797
|
2980 origin = SEEK_END; |
|
2341
|
2981 else |
|
|
2982 conv_err = -1; |
|
|
2983 } |
|
|
2984 } |
|
2117
|
2985 |
|
|
2986 if (! conv_err) |
|
5065
|
2987 { |
|
|
2988 retval = seek (xoffset, origin); |
|
|
2989 |
|
|
2990 if (retval != 0) |
|
|
2991 error ("fseek: failed to seek to requested position"); |
|
|
2992 } |
|
2117
|
2993 else |
|
|
2994 error ("fseek: invalid value for origin"); |
|
|
2995 } |
|
|
2996 else |
|
|
2997 error ("fseek: invalid value for offset"); |
|
|
2998 |
|
|
2999 return retval; |
|
|
3000 } |
|
|
3001 |
|
4797
|
3002 long |
|
|
3003 octave_stream::tell (void) |
|
2117
|
3004 { |
|
4797
|
3005 long retval = -1; |
|
2117
|
3006 |
|
5659
|
3007 if (stream_ok ()) |
|
2117
|
3008 retval = rep->tell (); |
|
|
3009 |
|
|
3010 return retval; |
|
|
3011 } |
|
|
3012 |
|
|
3013 int |
|
|
3014 octave_stream::rewind (void) |
|
|
3015 { |
|
6296
|
3016 return seek (0, SEEK_SET); |
|
2117
|
3017 } |
|
|
3018 |
|
3340
|
3019 bool |
|
|
3020 octave_stream::is_open (void) const |
|
|
3021 { |
|
|
3022 bool retval = false; |
|
|
3023 |
|
5659
|
3024 if (stream_ok ()) |
|
3340
|
3025 retval = rep->is_open (); |
|
|
3026 |
|
|
3027 return retval; |
|
|
3028 } |
|
|
3029 |
|
|
3030 void |
|
|
3031 octave_stream::close (void) |
|
|
3032 { |
|
5659
|
3033 if (stream_ok ()) |
|
3340
|
3034 rep->close (); |
|
|
3035 } |
|
|
3036 |
|
4944
|
3037 template <class RET_T, class READ_T> |
|
2117
|
3038 octave_value |
|
5275
|
3039 do_read (octave_stream& strm, octave_idx_type nr, octave_idx_type nc, octave_idx_type block_size, |
|
|
3040 octave_idx_type skip, bool do_float_fmt_conv, |
|
|
3041 oct_mach_info::float_format from_flt_fmt, octave_idx_type& count) |
|
2117
|
3042 { |
|
|
3043 octave_value retval; |
|
|
3044 |
|
4944
|
3045 RET_T nda; |
|
|
3046 |
|
|
3047 count = 0; |
|
|
3048 |
|
|
3049 typename octave_array_type_traits<RET_T>::element_type elt_zero |
|
|
3050 = typename octave_array_type_traits<RET_T>::element_type (); |
|
|
3051 |
|
|
3052 typename octave_array_type_traits<RET_T>::element_type *dat = 0; |
|
|
3053 |
|
5275
|
3054 octave_idx_type max_size = 0; |
|
|
3055 |
|
|
3056 octave_idx_type final_nr = 0; |
|
|
3057 octave_idx_type final_nc = 1; |
|
4944
|
3058 |
|
|
3059 if (nr > 0) |
|
|
3060 { |
|
|
3061 if (nc > 0) |
|
|
3062 { |
|
|
3063 nda.resize (dim_vector (nr, nc), elt_zero); |
|
|
3064 dat = nda.fortran_vec (); |
|
|
3065 max_size = nr * nc; |
|
|
3066 } |
|
|
3067 else |
|
|
3068 { |
|
|
3069 nda.resize (dim_vector (nr, 32), elt_zero); |
|
|
3070 dat = nda.fortran_vec (); |
|
|
3071 max_size = nr * 32; |
|
|
3072 } |
|
|
3073 } |
|
|
3074 else |
|
|
3075 { |
|
|
3076 nda.resize (dim_vector (32, 1), elt_zero); |
|
|
3077 dat = nda.fortran_vec (); |
|
|
3078 max_size = 32; |
|
|
3079 } |
|
|
3080 |
|
5775
|
3081 // FIXME -- byte order for Cray? |
|
4944
|
3082 |
|
|
3083 bool swap = false; |
|
|
3084 |
|
|
3085 if (oct_mach_info::words_big_endian ()) |
|
|
3086 swap = (from_flt_fmt == oct_mach_info::flt_fmt_ieee_little_endian |
|
|
3087 || from_flt_fmt == oct_mach_info::flt_fmt_vax_g |
|
|
3088 || from_flt_fmt == oct_mach_info::flt_fmt_vax_g); |
|
|
3089 else |
|
|
3090 swap = (from_flt_fmt == oct_mach_info::flt_fmt_ieee_big_endian); |
|
|
3091 |
|
|
3092 union |
|
|
3093 { |
|
|
3094 char buf[sizeof (typename octave_type_traits<READ_T>::val_type)]; |
|
|
3095 typename octave_type_traits<READ_T>::val_type val; |
|
|
3096 } u; |
|
|
3097 |
|
|
3098 std::istream *isp = strm.input_stream (); |
|
|
3099 |
|
|
3100 if (isp) |
|
|
3101 { |
|
|
3102 std::istream& is = *isp; |
|
|
3103 |
|
5275
|
3104 octave_idx_type elts_read = 0; |
|
4944
|
3105 |
|
|
3106 for (;;) |
|
|
3107 { |
|
5775
|
3108 // FIXME -- maybe there should be a special case for |
|
4944
|
3109 // skip == 0. |
|
|
3110 |
|
|
3111 if (is) |
|
|
3112 { |
|
|
3113 if (nr > 0 && nc > 0 && count == max_size) |
|
|
3114 { |
|
|
3115 final_nr = nr; |
|
|
3116 final_nc = nc; |
|
|
3117 |
|
|
3118 break; |
|
|
3119 } |
|
|
3120 |
|
|
3121 is.read (u.buf, sizeof (typename octave_type_traits<READ_T>::val_type)); |
|
|
3122 |
|
|
3123 // We only swap bytes for integer types. For float |
|
|
3124 // types, the format conversion will also handle byte |
|
|
3125 // swapping. |
|
|
3126 |
|
|
3127 if (swap) |
|
|
3128 swap_bytes<sizeof (typename octave_type_traits<READ_T>::val_type)> (u.buf); |
|
|
3129 else if (do_float_fmt_conv) |
|
|
3130 do_float_format_conversion |
|
|
3131 (u.buf, |
|
|
3132 sizeof (typename octave_type_traits<READ_T>::val_type), |
|
|
3133 1, from_flt_fmt, oct_mach_info::float_format ()); |
|
|
3134 |
|
|
3135 typename octave_array_type_traits<RET_T>::element_type tmp |
|
|
3136 = static_cast <typename octave_array_type_traits<RET_T>::element_type> (u.val); |
|
|
3137 |
|
5030
|
3138 if (is) |
|
4944
|
3139 { |
|
5030
|
3140 if (count == max_size) |
|
4944
|
3141 { |
|
5030
|
3142 max_size *= 2; |
|
|
3143 |
|
|
3144 if (nr > 0) |
|
|
3145 nda.resize (dim_vector (nr, max_size / nr), |
|
|
3146 elt_zero); |
|
|
3147 else |
|
|
3148 nda.resize (dim_vector (max_size, 1), elt_zero); |
|
|
3149 |
|
|
3150 dat = nda.fortran_vec (); |
|
4944
|
3151 } |
|
|
3152 |
|
5030
|
3153 dat[count++] = tmp; |
|
|
3154 |
|
|
3155 elts_read++; |
|
|
3156 } |
|
|
3157 |
|
|
3158 if (skip != 0 && elts_read == block_size) |
|
|
3159 { |
|
|
3160 strm.seek (skip, SEEK_CUR); |
|
|
3161 elts_read = 0; |
|
|
3162 } |
|
|
3163 |
|
|
3164 if (is.eof ()) |
|
|
3165 { |
|
|
3166 if (nr > 0) |
|
4944
|
3167 { |
|
5030
|
3168 if (count > nr) |
|
4944
|
3169 { |
|
5030
|
3170 final_nr = nr; |
|
|
3171 final_nc = (count - 1) / nr + 1; |
|
4944
|
3172 } |
|
|
3173 else |
|
|
3174 { |
|
|
3175 final_nr = count; |
|
|
3176 final_nc = 1; |
|
|
3177 } |
|
|
3178 } |
|
5030
|
3179 else |
|
|
3180 { |
|
|
3181 final_nr = count; |
|
|
3182 final_nc = 1; |
|
|
3183 } |
|
|
3184 |
|
4944
|
3185 break; |
|
|
3186 } |
|
|
3187 } |
|
5030
|
3188 else if (is.eof ()) |
|
|
3189 break; |
|
4944
|
3190 } |
|
|
3191 } |
|
|
3192 |
|
5030
|
3193 nda.resize (dim_vector (final_nr, final_nc), elt_zero); |
|
|
3194 |
|
|
3195 retval = nda; |
|
4944
|
3196 |
|
|
3197 return retval; |
|
|
3198 } |
|
|
3199 |
|
|
3200 #define DO_READ_VAL_TEMPLATE(RET_T, READ_T) \ |
|
|
3201 template octave_value \ |
|
5275
|
3202 do_read<RET_T, READ_T> (octave_stream&, octave_idx_type, octave_idx_type, octave_idx_type, octave_idx_type, bool, \ |
|
|
3203 oct_mach_info::float_format, octave_idx_type&) |
|
4944
|
3204 |
|
5775
|
3205 // FIXME -- should we only have float if it is a different |
|
4944
|
3206 // size from double? |
|
|
3207 |
|
|
3208 #define INSTANTIATE_DO_READ(VAL_T) \ |
|
|
3209 DO_READ_VAL_TEMPLATE (VAL_T, octave_int8); \ |
|
|
3210 DO_READ_VAL_TEMPLATE (VAL_T, octave_uint8); \ |
|
|
3211 DO_READ_VAL_TEMPLATE (VAL_T, octave_int16); \ |
|
|
3212 DO_READ_VAL_TEMPLATE (VAL_T, octave_uint16); \ |
|
|
3213 DO_READ_VAL_TEMPLATE (VAL_T, octave_int32); \ |
|
|
3214 DO_READ_VAL_TEMPLATE (VAL_T, octave_uint32); \ |
|
|
3215 DO_READ_VAL_TEMPLATE (VAL_T, octave_int64); \ |
|
|
3216 DO_READ_VAL_TEMPLATE (VAL_T, octave_uint64); \ |
|
|
3217 DO_READ_VAL_TEMPLATE (VAL_T, float); \ |
|
|
3218 DO_READ_VAL_TEMPLATE (VAL_T, double); \ |
|
|
3219 DO_READ_VAL_TEMPLATE (VAL_T, char); \ |
|
|
3220 DO_READ_VAL_TEMPLATE (VAL_T, signed char); \ |
|
|
3221 DO_READ_VAL_TEMPLATE (VAL_T, unsigned char) |
|
|
3222 |
|
4970
|
3223 INSTANTIATE_DO_READ (int8NDArray); |
|
|
3224 INSTANTIATE_DO_READ (uint8NDArray); |
|
|
3225 INSTANTIATE_DO_READ (int16NDArray); |
|
|
3226 INSTANTIATE_DO_READ (uint16NDArray); |
|
|
3227 INSTANTIATE_DO_READ (int32NDArray); |
|
|
3228 INSTANTIATE_DO_READ (uint32NDArray); |
|
|
3229 INSTANTIATE_DO_READ (int64NDArray); |
|
|
3230 INSTANTIATE_DO_READ (uint64NDArray); |
|
|
3231 // INSTANTIATE_DO_READ (floatNDArray); |
|
|
3232 INSTANTIATE_DO_READ (NDArray); |
|
|
3233 INSTANTIATE_DO_READ (charNDArray); |
|
5780
|
3234 INSTANTIATE_DO_READ (boolNDArray); |
|
4944
|
3235 |
|
5275
|
3236 typedef octave_value (*read_fptr) (octave_stream&, octave_idx_type, octave_idx_type, octave_idx_type, octave_idx_type, bool, |
|
|
3237 oct_mach_info::float_format ffmt, octave_idx_type&); |
|
4944
|
3238 |
|
6708
|
3239 INSTANTIATE_ARRAY (read_fptr,); |
|
4944
|
3240 template class Array2<read_fptr>; |
|
|
3241 |
|
|
3242 #define FILL_TABLE_ROW(R, VAL_T) \ |
|
|
3243 read_fptr_table(R,oct_data_conv::dt_int8) = do_read<VAL_T, octave_int8>; \ |
|
|
3244 read_fptr_table(R,oct_data_conv::dt_uint8) = do_read<VAL_T, octave_uint8>; \ |
|
|
3245 read_fptr_table(R,oct_data_conv::dt_int16) = do_read<VAL_T, octave_int16>; \ |
|
|
3246 read_fptr_table(R,oct_data_conv::dt_uint16) = do_read<VAL_T, octave_uint16>; \ |
|
|
3247 read_fptr_table(R,oct_data_conv::dt_int32) = do_read<VAL_T, octave_int32>; \ |
|
|
3248 read_fptr_table(R,oct_data_conv::dt_uint32) = do_read<VAL_T, octave_uint32>; \ |
|
|
3249 read_fptr_table(R,oct_data_conv::dt_int64) = do_read<VAL_T, octave_int64>; \ |
|
|
3250 read_fptr_table(R,oct_data_conv::dt_uint64) = do_read<VAL_T, octave_uint64>; \ |
|
|
3251 read_fptr_table(R,oct_data_conv::dt_single) = do_read<VAL_T, float>; \ |
|
|
3252 read_fptr_table(R,oct_data_conv::dt_double) = do_read<VAL_T, double>; \ |
|
|
3253 read_fptr_table(R,oct_data_conv::dt_char) = do_read<VAL_T, char>; \ |
|
|
3254 read_fptr_table(R,oct_data_conv::dt_schar) = do_read<VAL_T, signed char>; \ |
|
4970
|
3255 read_fptr_table(R,oct_data_conv::dt_uchar) = do_read<VAL_T, unsigned char>; \ |
|
|
3256 read_fptr_table(R,oct_data_conv::dt_logical) = do_read<VAL_T, unsigned char> |
|
4944
|
3257 |
|
|
3258 octave_value |
|
5275
|
3259 octave_stream::read (const Array<double>& size, octave_idx_type block_size, |
|
4944
|
3260 oct_data_conv::data_type input_type, |
|
|
3261 oct_data_conv::data_type output_type, |
|
5275
|
3262 octave_idx_type skip, oct_mach_info::float_format ffmt, |
|
|
3263 octave_idx_type& char_count) |
|
4944
|
3264 { |
|
|
3265 static bool initialized = false; |
|
|
3266 |
|
|
3267 // Table function pointers for return types x read types. |
|
|
3268 |
|
4970
|
3269 static Array2<read_fptr> read_fptr_table (oct_data_conv::dt_unknown, 14, 0); |
|
4944
|
3270 |
|
|
3271 if (! initialized) |
|
|
3272 { |
|
|
3273 FILL_TABLE_ROW (oct_data_conv::dt_int8, int8NDArray); |
|
|
3274 FILL_TABLE_ROW (oct_data_conv::dt_uint8, uint8NDArray); |
|
|
3275 FILL_TABLE_ROW (oct_data_conv::dt_int16, int16NDArray); |
|
|
3276 FILL_TABLE_ROW (oct_data_conv::dt_uint16, uint16NDArray); |
|
|
3277 FILL_TABLE_ROW (oct_data_conv::dt_int32, int32NDArray); |
|
|
3278 FILL_TABLE_ROW (oct_data_conv::dt_uint32, uint32NDArray); |
|
|
3279 FILL_TABLE_ROW (oct_data_conv::dt_int64, int64NDArray); |
|
|
3280 FILL_TABLE_ROW (oct_data_conv::dt_uint64, uint64NDArray); |
|
|
3281 FILL_TABLE_ROW (oct_data_conv::dt_double, NDArray); |
|
|
3282 FILL_TABLE_ROW (oct_data_conv::dt_char, charNDArray); |
|
|
3283 FILL_TABLE_ROW (oct_data_conv::dt_schar, charNDArray); |
|
|
3284 FILL_TABLE_ROW (oct_data_conv::dt_uchar, charNDArray); |
|
4970
|
3285 FILL_TABLE_ROW (oct_data_conv::dt_logical, boolNDArray); |
|
4944
|
3286 |
|
|
3287 initialized = true; |
|
|
3288 } |
|
|
3289 |
|
|
3290 octave_value retval; |
|
|
3291 |
|
5659
|
3292 if (stream_ok ()) |
|
4944
|
3293 { |
|
5775
|
3294 // FIXME -- we may eventually want to make this extensible. |
|
|
3295 |
|
|
3296 // FIXME -- we need a better way to ensure that this |
|
4944
|
3297 // numbering stays consistent with the order of the elements in the |
|
|
3298 // data_type enum in the oct_data_conv class. |
|
|
3299 |
|
|
3300 char_count = 0; |
|
|
3301 |
|
5275
|
3302 octave_idx_type nr = -1; |
|
|
3303 octave_idx_type nc = -1; |
|
4944
|
3304 |
|
|
3305 bool ignore; |
|
|
3306 |
|
|
3307 get_size (size, nr, nc, ignore, "fread"); |
|
|
3308 |
|
|
3309 if (! error_state) |
|
|
3310 { |
|
|
3311 if (nr == 0 || nc == 0) |
|
|
3312 retval = Matrix (nr, nc); |
|
|
3313 else |
|
|
3314 { |
|
|
3315 if (ffmt == oct_mach_info::flt_fmt_unknown) |
|
|
3316 ffmt = float_format (); |
|
|
3317 |
|
|
3318 read_fptr fcn = read_fptr_table (output_type, input_type); |
|
|
3319 |
|
|
3320 bool do_float_fmt_conv = ((input_type == oct_data_conv::dt_double |
|
|
3321 || input_type == oct_data_conv::dt_single) |
|
|
3322 && ffmt != float_format ()); |
|
|
3323 |
|
|
3324 if (fcn) |
|
|
3325 { |
|
|
3326 retval = (*fcn) (*this, nr, nc, block_size, skip, |
|
|
3327 do_float_fmt_conv, ffmt, char_count); |
|
|
3328 |
|
5775
|
3329 // FIXME -- kluge! |
|
4944
|
3330 |
|
|
3331 if (! error_state |
|
|
3332 && (output_type == oct_data_conv::dt_char |
|
|
3333 || output_type == oct_data_conv::dt_schar |
|
|
3334 || output_type == oct_data_conv::dt_uchar)) |
|
|
3335 retval = octave_value (retval.char_matrix_value (), true); |
|
|
3336 } |
|
|
3337 else |
|
|
3338 error ("fread: unable to read and convert requested types"); |
|
|
3339 } |
|
|
3340 } |
|
|
3341 else |
|
|
3342 invalid_operation ("fread", "reading"); |
|
|
3343 } |
|
2117
|
3344 |
|
|
3345 return retval; |
|
|
3346 } |
|
|
3347 |
|
5275
|
3348 octave_idx_type |
|
|
3349 octave_stream::write (const octave_value& data, octave_idx_type block_size, |
|
|
3350 oct_data_conv::data_type output_type, octave_idx_type skip, |
|
2317
|
3351 oct_mach_info::float_format flt_fmt) |
|
2117
|
3352 { |
|
5275
|
3353 octave_idx_type retval = -1; |
|
2117
|
3354 |
|
5659
|
3355 if (stream_ok ()) |
|
4944
|
3356 { |
|
|
3357 if (! error_state) |
|
|
3358 { |
|
|
3359 if (flt_fmt == oct_mach_info::flt_fmt_unknown) |
|
|
3360 flt_fmt = float_format (); |
|
|
3361 |
|
5275
|
3362 octave_idx_type status = data.write (*this, block_size, output_type, |
|
4944
|
3363 skip, flt_fmt); |
|
|
3364 |
|
|
3365 if (status < 0) |
|
|
3366 error ("fwrite: write error"); |
|
|
3367 else |
|
|
3368 retval = status; |
|
|
3369 } |
|
|
3370 else |
|
|
3371 invalid_operation ("fwrite", "writing"); |
|
|
3372 } |
|
2117
|
3373 |
|
|
3374 return retval; |
|
|
3375 } |
|
|
3376 |
|
4944
|
3377 template <class T> |
|
|
3378 void |
|
|
3379 write_int (std::ostream& os, bool swap, const T& val) |
|
|
3380 { |
|
|
3381 typename octave_type_traits<T>::val_type tmp = val.value (); |
|
|
3382 |
|
|
3383 if (swap) |
|
|
3384 swap_bytes<sizeof (typename octave_type_traits<T>::val_type)> (&tmp); |
|
|
3385 |
|
|
3386 os.write (reinterpret_cast<const char *> (&tmp), |
|
|
3387 sizeof (typename octave_type_traits<T>::val_type)); |
|
|
3388 } |
|
|
3389 |
|
|
3390 template void write_int (std::ostream&, bool, const octave_int8&); |
|
|
3391 template void write_int (std::ostream&, bool, const octave_uint8&); |
|
|
3392 template void write_int (std::ostream&, bool, const octave_int16&); |
|
|
3393 template void write_int (std::ostream&, bool, const octave_uint16&); |
|
|
3394 template void write_int (std::ostream&, bool, const octave_int32&); |
|
|
3395 template void write_int (std::ostream&, bool, const octave_uint32&); |
|
|
3396 template void write_int (std::ostream&, bool, const octave_int64&); |
|
|
3397 template void write_int (std::ostream&, bool, const octave_uint64&); |
|
|
3398 |
|
|
3399 template <class T> |
|
|
3400 static inline bool |
|
|
3401 do_write (std::ostream& os, const T& val, oct_data_conv::data_type output_type, |
|
|
3402 oct_mach_info::float_format flt_fmt, bool swap, |
|
|
3403 bool do_float_conversion) |
|
|
3404 { |
|
|
3405 bool retval = true; |
|
|
3406 |
|
|
3407 // For compatibility, Octave converts to the output type, then |
|
|
3408 // writes. This means that truncation happens on the conversion. |
|
|
3409 // For example, the following program prints 0: |
|
|
3410 // |
|
|
3411 // x = int8 (-1) |
|
|
3412 // f = fopen ("foo.dat", "w"); |
|
|
3413 // fwrite (f, x, "unsigned char"); |
|
|
3414 // fclose (f); |
|
|
3415 // f = fopen ("foo.dat", "r"); |
|
|
3416 // y = fread (f, 1, "unsigned char"); |
|
|
3417 // printf ("%d\n", y); |
|
|
3418 |
|
|
3419 switch (output_type) |
|
|
3420 { |
|
|
3421 case oct_data_conv::dt_char: |
|
|
3422 case oct_data_conv::dt_schar: |
|
|
3423 case oct_data_conv::dt_int8: |
|
|
3424 write_int (os, swap, octave_int8 (val)); |
|
|
3425 break; |
|
|
3426 |
|
|
3427 case oct_data_conv::dt_uchar: |
|
|
3428 case oct_data_conv::dt_uint8: |
|
|
3429 write_int (os, swap, octave_uint8 (val)); |
|
|
3430 break; |
|
|
3431 |
|
|
3432 case oct_data_conv::dt_int16: |
|
|
3433 write_int (os, swap, octave_int16 (val)); |
|
|
3434 break; |
|
|
3435 |
|
|
3436 case oct_data_conv::dt_uint16: |
|
|
3437 write_int (os, swap, octave_uint16 (val)); |
|
|
3438 break; |
|
|
3439 |
|
|
3440 case oct_data_conv::dt_int32: |
|
|
3441 write_int (os, swap, octave_int32 (val)); |
|
|
3442 break; |
|
|
3443 |
|
|
3444 case oct_data_conv::dt_uint32: |
|
|
3445 write_int (os, swap, octave_uint32 (val)); |
|
|
3446 break; |
|
|
3447 |
|
|
3448 case oct_data_conv::dt_int64: |
|
|
3449 write_int (os, swap, octave_int64 (val)); |
|
|
3450 break; |
|
|
3451 |
|
|
3452 case oct_data_conv::dt_uint64: |
|
|
3453 write_int (os, swap, octave_uint64 (val)); |
|
|
3454 break; |
|
|
3455 |
|
|
3456 case oct_data_conv::dt_single: |
|
|
3457 { |
|
|
3458 float f = static_cast<float> (val); |
|
|
3459 |
|
|
3460 if (do_float_conversion) |
|
|
3461 do_float_format_conversion (&f, 1, flt_fmt); |
|
|
3462 |
|
|
3463 os.write (reinterpret_cast<const char *> (&f), sizeof (float)); |
|
|
3464 } |
|
|
3465 break; |
|
|
3466 |
|
|
3467 case oct_data_conv::dt_double: |
|
|
3468 { |
|
|
3469 double d = static_cast<double> (val); |
|
|
3470 if (do_float_conversion) |
|
|
3471 do_double_format_conversion (&d, 1, flt_fmt); |
|
|
3472 |
|
|
3473 os.write (reinterpret_cast<const char *> (&d), sizeof (double)); |
|
|
3474 } |
|
|
3475 break; |
|
|
3476 |
|
|
3477 default: |
|
|
3478 retval = false; |
|
|
3479 (*current_liboctave_error_handler) |
|
|
3480 ("write: invalid type specification"); |
|
|
3481 break; |
|
|
3482 } |
|
|
3483 |
|
|
3484 return retval; |
|
|
3485 } |
|
|
3486 |
|
5887
|
3487 template bool |
|
|
3488 do_write (std::ostream&, const octave_int8&, oct_data_conv::data_type, |
|
|
3489 oct_mach_info::float_format, bool, bool); |
|
|
3490 |
|
|
3491 template bool |
|
|
3492 do_write (std::ostream&, const octave_uint8&, oct_data_conv::data_type, |
|
|
3493 oct_mach_info::float_format, bool, bool); |
|
|
3494 |
|
|
3495 template bool |
|
|
3496 do_write (std::ostream&, const octave_int16&, oct_data_conv::data_type, |
|
|
3497 oct_mach_info::float_format, bool, bool); |
|
|
3498 |
|
|
3499 template bool |
|
|
3500 do_write (std::ostream&, const octave_uint16&, oct_data_conv::data_type, |
|
|
3501 oct_mach_info::float_format, bool, bool); |
|
|
3502 |
|
|
3503 template bool |
|
|
3504 do_write (std::ostream&, const octave_int32&, oct_data_conv::data_type, |
|
|
3505 oct_mach_info::float_format, bool, bool); |
|
|
3506 |
|
|
3507 template bool |
|
|
3508 do_write (std::ostream&, const octave_uint32&, oct_data_conv::data_type, |
|
|
3509 oct_mach_info::float_format, bool, bool); |
|
|
3510 |
|
|
3511 template bool |
|
|
3512 do_write (std::ostream&, const octave_int64&, oct_data_conv::data_type, |
|
|
3513 oct_mach_info::float_format, bool, bool); |
|
|
3514 |
|
|
3515 template bool |
|
|
3516 do_write (std::ostream&, const octave_uint64&, oct_data_conv::data_type, |
|
|
3517 oct_mach_info::float_format, bool, bool); |
|
|
3518 |
|
4944
|
3519 template <class T> |
|
5275
|
3520 octave_idx_type |
|
|
3521 octave_stream::write (const Array<T>& data, octave_idx_type block_size, |
|
4944
|
3522 oct_data_conv::data_type output_type, |
|
5275
|
3523 octave_idx_type skip, oct_mach_info::float_format flt_fmt) |
|
4944
|
3524 { |
|
5275
|
3525 octave_idx_type retval = -1; |
|
4944
|
3526 |
|
|
3527 bool status = true; |
|
|
3528 |
|
5275
|
3529 octave_idx_type count = 0; |
|
4944
|
3530 |
|
|
3531 const T *d = data.data (); |
|
|
3532 |
|
5275
|
3533 octave_idx_type n = data.length (); |
|
4944
|
3534 |
|
|
3535 oct_mach_info::float_format native_flt_fmt |
|
|
3536 = oct_mach_info::float_format (); |
|
|
3537 |
|
|
3538 bool do_float_conversion = (flt_fmt != native_flt_fmt); |
|
|
3539 |
|
5775
|
3540 // FIXME -- byte order for Cray? |
|
4944
|
3541 |
|
|
3542 bool swap = false; |
|
|
3543 |
|
|
3544 if (oct_mach_info::words_big_endian ()) |
|
|
3545 swap = (flt_fmt == oct_mach_info::flt_fmt_ieee_little_endian |
|
|
3546 || flt_fmt == oct_mach_info::flt_fmt_vax_g |
|
|
3547 || flt_fmt == oct_mach_info::flt_fmt_vax_g); |
|
|
3548 else |
|
|
3549 swap = (flt_fmt == oct_mach_info::flt_fmt_ieee_big_endian); |
|
|
3550 |
|
5275
|
3551 for (octave_idx_type i = 0; i < n; i++) |
|
4944
|
3552 { |
|
|
3553 std::ostream *osp = output_stream (); |
|
|
3554 |
|
|
3555 if (osp) |
|
|
3556 { |
|
|
3557 std::ostream& os = *osp; |
|
|
3558 |
|
5254
|
3559 // It seems that Matlab writes zeros instead of actually |
|
|
3560 // seeking. Hmm... |
|
|
3561 |
|
4944
|
3562 if (skip != 0 && (i % block_size) == 0) |
|
5254
|
3563 { |
|
5775
|
3564 // FIXME -- probably should try to write larger |
|
5254
|
3565 // blocks... |
|
|
3566 |
|
|
3567 unsigned char zero = 0; |
|
|
3568 for (int j = 0; j < skip; j++) |
|
|
3569 os.write (reinterpret_cast<const char *> (&zero), 1); |
|
|
3570 } |
|
4944
|
3571 |
|
|
3572 if (os) |
|
|
3573 { |
|
|
3574 status = do_write (os, d[i], output_type, flt_fmt, swap, |
|
|
3575 do_float_conversion); |
|
|
3576 |
|
|
3577 if (os && status) |
|
|
3578 count++; |
|
|
3579 else |
|
|
3580 break; |
|
|
3581 } |
|
|
3582 else |
|
|
3583 { |
|
|
3584 status = false; |
|
|
3585 break; |
|
|
3586 } |
|
|
3587 } |
|
|
3588 else |
|
|
3589 { |
|
|
3590 status = false; |
|
|
3591 break; |
|
|
3592 } |
|
|
3593 } |
|
|
3594 |
|
|
3595 if (status) |
|
|
3596 retval = count; |
|
|
3597 |
|
|
3598 return retval; |
|
|
3599 } |
|
|
3600 |
|
5275
|
3601 template octave_idx_type |
|
|
3602 octave_stream::write (const Array<char>&, octave_idx_type, |
|
4944
|
3603 oct_data_conv::data_type, |
|
5275
|
3604 octave_idx_type, oct_mach_info::float_format); |
|
|
3605 |
|
|
3606 template octave_idx_type |
|
|
3607 octave_stream::write (const Array<bool>&, octave_idx_type, |
|
4970
|
3608 oct_data_conv::data_type, |
|
5275
|
3609 octave_idx_type, oct_mach_info::float_format); |
|
|
3610 |
|
|
3611 template octave_idx_type |
|
|
3612 octave_stream::write (const Array<double>&, octave_idx_type, |
|
4944
|
3613 oct_data_conv::data_type, |
|
5275
|
3614 octave_idx_type, oct_mach_info::float_format); |
|
|
3615 |
|
|
3616 template octave_idx_type |
|
|
3617 octave_stream::write (const Array<octave_int8>&, octave_idx_type, |
|
4944
|
3618 oct_data_conv::data_type, |
|
5275
|
3619 octave_idx_type, oct_mach_info::float_format); |
|
|
3620 |
|
|
3621 template octave_idx_type |
|
|
3622 octave_stream::write (const Array<octave_uint8>&, octave_idx_type, |
|
4944
|
3623 oct_data_conv::data_type, |
|
5275
|
3624 octave_idx_type, oct_mach_info::float_format); |
|
|
3625 |
|
|
3626 template octave_idx_type |
|
|
3627 octave_stream::write (const Array<octave_int16>&, octave_idx_type, |
|
4944
|
3628 oct_data_conv::data_type, |
|
5275
|
3629 octave_idx_type, oct_mach_info::float_format); |
|
|
3630 |
|
|
3631 template octave_idx_type |
|
|
3632 octave_stream::write (const Array<octave_uint16>&, octave_idx_type, |
|
4944
|
3633 oct_data_conv::data_type, |
|
5275
|
3634 octave_idx_type, oct_mach_info::float_format); |
|
|
3635 |
|
|
3636 template octave_idx_type |
|
|
3637 octave_stream::write (const Array<octave_int32>&, octave_idx_type, |
|
4944
|
3638 oct_data_conv::data_type, |
|
5275
|
3639 octave_idx_type, oct_mach_info::float_format); |
|
|
3640 |
|
|
3641 template octave_idx_type |
|
|
3642 octave_stream::write (const Array<octave_uint32>&, octave_idx_type, |
|
4944
|
3643 oct_data_conv::data_type, |
|
5275
|
3644 octave_idx_type, oct_mach_info::float_format); |
|
|
3645 |
|
|
3646 template octave_idx_type |
|
|
3647 octave_stream::write (const Array<octave_int64>&, octave_idx_type, |
|
4944
|
3648 oct_data_conv::data_type, |
|
5275
|
3649 octave_idx_type, oct_mach_info::float_format); |
|
|
3650 |
|
|
3651 template octave_idx_type |
|
|
3652 octave_stream::write (const Array<octave_uint64>&, octave_idx_type, |
|
4944
|
3653 oct_data_conv::data_type, |
|
5275
|
3654 octave_idx_type, oct_mach_info::float_format); |
|
4944
|
3655 |
|
2117
|
3656 octave_value |
|
3810
|
3657 octave_stream::scanf (const std::string& fmt, const Array<double>& size, |
|
5275
|
3658 octave_idx_type& count, const std::string& who) |
|
2117
|
3659 { |
|
|
3660 octave_value retval; |
|
|
3661 |
|
5659
|
3662 if (stream_ok ()) |
|
4468
|
3663 retval = rep->scanf (fmt, size, count, who); |
|
2117
|
3664 |
|
|
3665 return retval; |
|
|
3666 } |
|
|
3667 |
|
5279
|
3668 octave_value |
|
|
3669 octave_stream::scanf (const octave_value& fmt, const Array<double>& size, |
|
5299
|
3670 octave_idx_type& count, const std::string& who) |
|
5279
|
3671 { |
|
|
3672 octave_value retval = Matrix (); |
|
|
3673 |
|
|
3674 if (fmt.is_string ()) |
|
|
3675 { |
|
|
3676 std::string sfmt = fmt.string_value (); |
|
|
3677 |
|
|
3678 if (fmt.is_sq_string ()) |
|
|
3679 sfmt = do_string_escapes (sfmt); |
|
|
3680 |
|
|
3681 retval = scanf (sfmt, size, count, who); |
|
|
3682 } |
|
|
3683 else |
|
|
3684 { |
|
|
3685 // Note that this is not ::error () ! |
|
|
3686 |
|
|
3687 error (who + ": format must be a string"); |
|
|
3688 } |
|
|
3689 |
|
|
3690 return retval; |
|
|
3691 } |
|
|
3692 |
|
2215
|
3693 octave_value_list |
|
4468
|
3694 octave_stream::oscanf (const std::string& fmt, const std::string& who) |
|
2215
|
3695 { |
|
|
3696 octave_value_list retval; |
|
|
3697 |
|
5659
|
3698 if (stream_ok ()) |
|
4468
|
3699 retval = rep->oscanf (fmt, who); |
|
2215
|
3700 |
|
|
3701 return retval; |
|
|
3702 } |
|
|
3703 |
|
5279
|
3704 octave_value_list |
|
|
3705 octave_stream::oscanf (const octave_value& fmt, const std::string& who) |
|
|
3706 { |
|
|
3707 octave_value_list retval; |
|
|
3708 |
|
|
3709 if (fmt.is_string ()) |
|
|
3710 { |
|
|
3711 std::string sfmt = fmt.string_value (); |
|
|
3712 |
|
|
3713 if (fmt.is_sq_string ()) |
|
|
3714 sfmt = do_string_escapes (sfmt); |
|
|
3715 |
|
|
3716 retval = oscanf (sfmt, who); |
|
|
3717 } |
|
|
3718 else |
|
|
3719 { |
|
|
3720 // Note that this is not ::error () ! |
|
|
3721 |
|
|
3722 error (who + ": format must be a string"); |
|
|
3723 } |
|
|
3724 |
|
|
3725 return retval; |
|
|
3726 } |
|
|
3727 |
|
2117
|
3728 int |
|
4468
|
3729 octave_stream::printf (const std::string& fmt, const octave_value_list& args, |
|
|
3730 const std::string& who) |
|
2117
|
3731 { |
|
|
3732 int retval = -1; |
|
|
3733 |
|
5659
|
3734 if (stream_ok ()) |
|
4468
|
3735 retval = rep->printf (fmt, args, who); |
|
2117
|
3736 |
|
|
3737 return retval; |
|
|
3738 } |
|
|
3739 |
|
|
3740 int |
|
5279
|
3741 octave_stream::printf (const octave_value& fmt, const octave_value_list& args, |
|
|
3742 const std::string& who) |
|
|
3743 { |
|
|
3744 int retval = 0; |
|
|
3745 |
|
|
3746 if (fmt.is_string ()) |
|
|
3747 { |
|
|
3748 std::string sfmt = fmt.string_value (); |
|
|
3749 |
|
|
3750 if (fmt.is_sq_string ()) |
|
|
3751 sfmt = do_string_escapes (sfmt); |
|
|
3752 |
|
|
3753 retval = printf (sfmt, args, who); |
|
|
3754 } |
|
|
3755 else |
|
|
3756 { |
|
|
3757 // Note that this is not ::error () ! |
|
|
3758 |
|
|
3759 error (who + ": format must be a string"); |
|
|
3760 } |
|
|
3761 |
|
|
3762 return retval; |
|
|
3763 } |
|
|
3764 |
|
|
3765 int |
|
4468
|
3766 octave_stream::puts (const std::string& s, const std::string& who) |
|
2117
|
3767 { |
|
|
3768 int retval = -1; |
|
|
3769 |
|
5659
|
3770 if (stream_ok ()) |
|
4468
|
3771 retval = rep->puts (s, who); |
|
2117
|
3772 |
|
|
3773 return retval; |
|
|
3774 } |
|
|
3775 |
|
5775
|
3776 // FIXME -- maybe this should work for string arrays too. |
|
2117
|
3777 |
|
|
3778 int |
|
4468
|
3779 octave_stream::puts (const octave_value& tc_s, const std::string& who) |
|
2117
|
3780 { |
|
|
3781 int retval = -1; |
|
|
3782 |
|
|
3783 if (tc_s.is_string ()) |
|
|
3784 { |
|
3523
|
3785 std::string s = tc_s.string_value (); |
|
5279
|
3786 retval = puts (s, who); |
|
2117
|
3787 } |
|
|
3788 else |
|
4468
|
3789 { |
|
|
3790 // Note that this is not ::error () ! |
|
|
3791 |
|
|
3792 error (who + ": argument must be a string"); |
|
|
3793 } |
|
2117
|
3794 |
|
|
3795 return retval; |
|
|
3796 } |
|
|
3797 |
|
|
3798 bool |
|
|
3799 octave_stream::eof (void) const |
|
|
3800 { |
|
|
3801 int retval = -1; |
|
|
3802 |
|
5659
|
3803 if (stream_ok ()) |
|
2117
|
3804 retval = rep->eof (); |
|
|
3805 |
|
|
3806 return retval; |
|
|
3807 } |
|
|
3808 |
|
3536
|
3809 std::string |
|
2435
|
3810 octave_stream::error (bool clear, int& err_num) |
|
2117
|
3811 { |
|
5649
|
3812 std::string retval = "invalid stream object"; |
|
|
3813 |
|
5659
|
3814 if (stream_ok (false)) |
|
2435
|
3815 retval = rep->error (clear, err_num); |
|
2117
|
3816 |
|
|
3817 return retval; |
|
|
3818 } |
|
|
3819 |
|
3536
|
3820 std::string |
|
3340
|
3821 octave_stream::name (void) const |
|
2117
|
3822 { |
|
3523
|
3823 std::string retval; |
|
2117
|
3824 |
|
5659
|
3825 if (stream_ok ()) |
|
2117
|
3826 retval = rep->name (); |
|
|
3827 |
|
|
3828 return retval; |
|
|
3829 } |
|
|
3830 |
|
|
3831 int |
|
3340
|
3832 octave_stream::mode (void) const |
|
2117
|
3833 { |
|
|
3834 int retval = 0; |
|
|
3835 |
|
5659
|
3836 if (stream_ok ()) |
|
2117
|
3837 retval = rep->mode (); |
|
|
3838 |
|
|
3839 return retval; |
|
|
3840 } |
|
|
3841 |
|
2317
|
3842 oct_mach_info::float_format |
|
3340
|
3843 octave_stream::float_format (void) const |
|
2117
|
3844 { |
|
4574
|
3845 oct_mach_info::float_format retval = oct_mach_info::flt_fmt_unknown; |
|
2317
|
3846 |
|
5659
|
3847 if (stream_ok ()) |
|
2317
|
3848 retval = rep->float_format (); |
|
2117
|
3849 |
|
|
3850 return retval; |
|
|
3851 } |
|
|
3852 |
|
3536
|
3853 std::string |
|
2117
|
3854 octave_stream::mode_as_string (int mode) |
|
|
3855 { |
|
3523
|
3856 std::string retval = "???"; |
|
3775
|
3857 std::ios::openmode in_mode = static_cast<std::ios::openmode> (mode); |
|
|
3858 |
|
|
3859 if (in_mode == std::ios::in) |
|
|
3860 retval = "r"; |
|
|
3861 else if (in_mode == std::ios::out |
|
4078
|
3862 || in_mode == (std::ios::out | std::ios::trunc)) |
|
3775
|
3863 retval = "w"; |
|
4078
|
3864 else if (in_mode == (std::ios::out | std::ios::app)) |
|
3775
|
3865 retval = "a"; |
|
4078
|
3866 else if (in_mode == (std::ios::in | std::ios::out)) |
|
3775
|
3867 retval = "r+"; |
|
4078
|
3868 else if (in_mode == (std::ios::in | std::ios::out | std::ios::trunc)) |
|
3775
|
3869 retval = "w+"; |
|
4078
|
3870 else if (in_mode == (std::ios::in | std::ios::out | std::ios::ate)) |
|
3775
|
3871 retval = "a+"; |
|
4078
|
3872 else if (in_mode == (std::ios::in | std::ios::binary)) |
|
3775
|
3873 retval = "rb"; |
|
4078
|
3874 else if (in_mode == (std::ios::out | std::ios::binary) |
|
|
3875 || in_mode == (std::ios::out | std::ios::trunc | std::ios::binary)) |
|
3775
|
3876 retval = "wb"; |
|
4078
|
3877 else if (in_mode == (std::ios::out | std::ios::app | std::ios::binary)) |
|
3775
|
3878 retval = "ab"; |
|
4078
|
3879 else if (in_mode == (std::ios::in | std::ios::out | std::ios::binary)) |
|
3775
|
3880 retval = "r+b"; |
|
4078
|
3881 else if (in_mode == (std::ios::in | std::ios::out | std::ios::trunc |
|
|
3882 | std::ios::binary)) |
|
3775
|
3883 retval = "w+b"; |
|
4078
|
3884 else if (in_mode == (std::ios::in | std::ios::out | std::ios::ate |
|
|
3885 | std::ios::binary)) |
|
3775
|
3886 retval = "a+b"; |
|
2117
|
3887 |
|
|
3888 return retval; |
|
|
3889 } |
|
|
3890 |
|
|
3891 octave_stream_list *octave_stream_list::instance = 0; |
|
|
3892 |
|
2926
|
3893 bool |
|
|
3894 octave_stream_list::instance_ok (void) |
|
|
3895 { |
|
|
3896 bool retval = true; |
|
|
3897 |
|
|
3898 if (! instance) |
|
|
3899 instance = new octave_stream_list (); |
|
|
3900 |
|
|
3901 if (! instance) |
|
|
3902 { |
|
|
3903 ::error ("unable to create stream list object!"); |
|
|
3904 |
|
|
3905 retval = false; |
|
|
3906 } |
|
|
3907 |
|
|
3908 return retval; |
|
|
3909 } |
|
|
3910 |
|
5353
|
3911 int |
|
6757
|
3912 octave_stream_list::insert (octave_stream& os) |
|
2926
|
3913 { |
|
5353
|
3914 return (instance_ok ()) ? instance->do_insert (os) : -1; |
|
2926
|
3915 } |
|
|
3916 |
|
3340
|
3917 octave_stream |
|
3523
|
3918 octave_stream_list::lookup (int fid, const std::string& who) |
|
2926
|
3919 { |
|
3341
|
3920 return (instance_ok ()) ? instance->do_lookup (fid, who) : octave_stream (); |
|
2926
|
3921 } |
|
|
3922 |
|
3340
|
3923 octave_stream |
|
3523
|
3924 octave_stream_list::lookup (const octave_value& fid, const std::string& who) |
|
2926
|
3925 { |
|
3341
|
3926 return (instance_ok ()) ? instance->do_lookup (fid, who) : octave_stream (); |
|
2926
|
3927 } |
|
|
3928 |
|
|
3929 int |
|
3523
|
3930 octave_stream_list::remove (int fid, const std::string& who) |
|
2926
|
3931 { |
|
3341
|
3932 return (instance_ok ()) ? instance->do_remove (fid, who) : -1; |
|
2926
|
3933 } |
|
|
3934 |
|
|
3935 int |
|
3523
|
3936 octave_stream_list::remove (const octave_value& fid, const std::string& who) |
|
2926
|
3937 { |
|
3341
|
3938 return (instance_ok ()) ? instance->do_remove (fid, who) : -1; |
|
2926
|
3939 } |
|
|
3940 |
|
|
3941 void |
|
|
3942 octave_stream_list::clear (void) |
|
|
3943 { |
|
|
3944 if (instance) |
|
|
3945 instance->do_clear (); |
|
|
3946 } |
|
|
3947 |
|
|
3948 string_vector |
|
|
3949 octave_stream_list::get_info (int fid) |
|
|
3950 { |
|
|
3951 return (instance_ok ()) ? instance->do_get_info (fid) : string_vector (); |
|
|
3952 } |
|
|
3953 |
|
|
3954 string_vector |
|
|
3955 octave_stream_list::get_info (const octave_value& fid) |
|
|
3956 { |
|
|
3957 return (instance_ok ()) ? instance->do_get_info (fid) : string_vector (); |
|
|
3958 } |
|
|
3959 |
|
3536
|
3960 std::string |
|
2926
|
3961 octave_stream_list::list_open_files (void) |
|
|
3962 { |
|
3523
|
3963 return (instance_ok ()) ? instance->do_list_open_files () : std::string (); |
|
2926
|
3964 } |
|
|
3965 |
|
|
3966 octave_value |
|
|
3967 octave_stream_list::open_file_numbers (void) |
|
|
3968 { |
|
|
3969 return (instance_ok ()) |
|
|
3970 ? instance->do_open_file_numbers () : octave_value (); |
|
|
3971 } |
|
|
3972 |
|
|
3973 int |
|
|
3974 octave_stream_list::get_file_number (const octave_value& fid) |
|
|
3975 { |
|
|
3976 return (instance_ok ()) ? instance->do_get_file_number (fid) : -1; |
|
|
3977 } |
|
|
3978 |
|
5353
|
3979 int |
|
6757
|
3980 octave_stream_list::do_insert (octave_stream& os) |
|
2117
|
3981 { |
|
6757
|
3982 // Insert item with key corresponding to file-descriptor. |
|
|
3983 |
|
|
3984 int stream_number; |
|
|
3985 |
|
|
3986 if ((stream_number = os.file_number ()) == -1) |
|
|
3987 return stream_number; |
|
|
3988 |
|
|
3989 // Should we test for "(list.find (stream_number) != list.end ()) && |
|
|
3990 // list[stream_number].is_open ()" and respond with "error |
|
|
3991 // ("internal error: ...")"? It should not happen except for some |
|
|
3992 // bug or if the user has opened a stream with an interpreted |
|
|
3993 // command, but closed it directly with a system call in an |
|
|
3994 // oct-file; then the kernel knows the fd is free, but Octave does |
|
|
3995 // not know. If it happens, it should not do harm here to simply |
|
|
3996 // overwrite this entry, although the wrong entry might have done |
|
|
3997 // harm before. |
|
|
3998 |
|
|
3999 if (list.size () < list.max_size ()) |
|
|
4000 list[stream_number] = os; |
|
|
4001 else |
|
2117
|
4002 { |
|
6757
|
4003 stream_number = -1; |
|
|
4004 error ("could not create file id"); |
|
3340
|
4005 } |
|
2117
|
4006 |
|
5353
|
4007 return stream_number; |
|
6757
|
4008 |
|
2117
|
4009 } |
|
|
4010 |
|
3341
|
4011 static void |
|
3523
|
4012 gripe_invalid_file_id (int fid, const std::string& who) |
|
3341
|
4013 { |
|
|
4014 if (who.empty ()) |
|
|
4015 ::error ("invalid stream number = %d", fid); |
|
|
4016 else |
|
|
4017 ::error ("%s: invalid stream number = %d", who.c_str (), fid); |
|
|
4018 } |
|
|
4019 |
|
3340
|
4020 octave_stream |
|
3523
|
4021 octave_stream_list::do_lookup (int fid, const std::string& who) const |
|
2117
|
4022 { |
|
3340
|
4023 octave_stream retval; |
|
2117
|
4024 |
|
6757
|
4025 if (fid >= 0) |
|
|
4026 { |
|
|
4027 ostrl_map::const_iterator iter = list.find (fid); |
|
|
4028 |
|
|
4029 if (iter != list.end ()) |
|
|
4030 retval = iter->second; |
|
|
4031 else |
|
|
4032 gripe_invalid_file_id (fid, who); |
|
|
4033 } |
|
3341
|
4034 else |
|
|
4035 gripe_invalid_file_id (fid, who); |
|
2117
|
4036 |
|
|
4037 return retval; |
|
|
4038 } |
|
|
4039 |
|
3340
|
4040 octave_stream |
|
3341
|
4041 octave_stream_list::do_lookup (const octave_value& fid, |
|
3523
|
4042 const std::string& who) const |
|
2117
|
4043 { |
|
3340
|
4044 octave_stream retval; |
|
2117
|
4045 |
|
|
4046 int i = get_file_number (fid); |
|
|
4047 |
|
|
4048 if (! error_state) |
|
3341
|
4049 retval = do_lookup (i, who); |
|
2117
|
4050 |
|
|
4051 return retval; |
|
|
4052 } |
|
|
4053 |
|
|
4054 int |
|
3523
|
4055 octave_stream_list::do_remove (int fid, const std::string& who) |
|
2117
|
4056 { |
|
|
4057 int retval = -1; |
|
|
4058 |
|
3531
|
4059 // Can't remove stdin (std::cin), stdout (std::cout), or stderr |
|
|
4060 // (std::cerr). |
|
2117
|
4061 |
|
6757
|
4062 if (fid > 2) |
|
2117
|
4063 { |
|
6757
|
4064 ostrl_map::iterator iter = list.find (fid); |
|
|
4065 |
|
|
4066 if (iter != list.end ()) |
|
2117
|
4067 { |
|
6757
|
4068 octave_stream os = iter->second; |
|
|
4069 |
|
|
4070 if (os.is_valid ()) |
|
|
4071 { |
|
|
4072 os.close (); |
|
|
4073 iter->second = octave_stream (); |
|
|
4074 retval = 0; |
|
|
4075 } |
|
|
4076 else |
|
|
4077 gripe_invalid_file_id (fid, who); |
|
2117
|
4078 } |
|
3341
|
4079 else |
|
|
4080 gripe_invalid_file_id (fid, who); |
|
2117
|
4081 } |
|
3341
|
4082 else |
|
|
4083 gripe_invalid_file_id (fid, who); |
|
2117
|
4084 |
|
|
4085 return retval; |
|
|
4086 } |
|
|
4087 |
|
|
4088 int |
|
3523
|
4089 octave_stream_list::do_remove (const octave_value& fid, const std::string& who) |
|
2117
|
4090 { |
|
|
4091 int retval = -1; |
|
|
4092 |
|
6054
|
4093 if (fid.is_string () && fid.string_value () == "all") |
|
|
4094 { |
|
6757
|
4095 for (ostrl_map::iterator p = list.begin (); p != list.end (); p++) |
|
6054
|
4096 { |
|
6757
|
4097 // Skip stdin, stdout, and stderr. |
|
|
4098 |
|
|
4099 if (p->first > 2) |
|
|
4100 { |
|
|
4101 octave_stream os = p->second; |
|
|
4102 |
|
|
4103 if (os.is_valid ()) |
|
|
4104 do_remove (p->first, who); |
|
|
4105 } |
|
6054
|
4106 } |
|
|
4107 |
|
|
4108 retval = 0; |
|
|
4109 } |
|
|
4110 else |
|
|
4111 { |
|
|
4112 int i = get_file_number (fid); |
|
|
4113 |
|
|
4114 if (! error_state) |
|
|
4115 retval = do_remove (i, who); |
|
|
4116 } |
|
2117
|
4117 |
|
|
4118 return retval; |
|
|
4119 } |
|
|
4120 |
|
|
4121 void |
|
|
4122 octave_stream_list::do_clear (void) |
|
|
4123 { |
|
|
4124 // Do flush stdout and stderr. |
|
|
4125 |
|
6757
|
4126 list[0].flush (); |
|
|
4127 list[1].flush (); |
|
2117
|
4128 |
|
|
4129 // But don't delete them or stdin. |
|
|
4130 |
|
6757
|
4131 for (ostrl_map::iterator p = list.begin (); p != list.end (); p++) |
|
|
4132 { |
|
|
4133 // Skip stdin, stdout, and stderr. |
|
|
4134 |
|
|
4135 if (p->first > 2) |
|
|
4136 p->second = octave_stream (); |
|
|
4137 } |
|
2117
|
4138 } |
|
|
4139 |
|
|
4140 string_vector |
|
|
4141 octave_stream_list::do_get_info (int fid) const |
|
|
4142 { |
|
|
4143 string_vector retval; |
|
|
4144 |
|
3340
|
4145 octave_stream os = do_lookup (fid); |
|
2117
|
4146 |
|
3341
|
4147 if (os.is_valid ()) |
|
2117
|
4148 { |
|
|
4149 retval.resize (3); |
|
|
4150 |
|
3340
|
4151 retval(0) = os.name (); |
|
|
4152 retval(1) = octave_stream::mode_as_string (os.mode ()); |
|
|
4153 retval(2) = oct_mach_info::float_format_as_string (os.float_format ()); |
|
2117
|
4154 } |
|
|
4155 else |
|
3341
|
4156 ::error ("invalid file id = %d", fid); |
|
2117
|
4157 |
|
|
4158 return retval; |
|
|
4159 } |
|
|
4160 |
|
|
4161 string_vector |
|
|
4162 octave_stream_list::do_get_info (const octave_value& fid) const |
|
|
4163 { |
|
|
4164 string_vector retval; |
|
|
4165 |
|
|
4166 int conv_err = 0; |
|
|
4167 |
|
|
4168 int int_fid = convert_to_valid_int (fid, conv_err); |
|
|
4169 |
|
|
4170 if (! conv_err) |
|
|
4171 retval = do_get_info (int_fid); |
|
|
4172 else |
|
2915
|
4173 ::error ("file id must be a file object or integer value"); |
|
2117
|
4174 |
|
|
4175 return retval; |
|
|
4176 } |
|
|
4177 |
|
3536
|
4178 std::string |
|
2117
|
4179 octave_stream_list::do_list_open_files (void) const |
|
|
4180 { |
|
3523
|
4181 std::string retval; |
|
2117
|
4182 |
|
5765
|
4183 std::ostringstream buf; |
|
2117
|
4184 |
|
|
4185 buf << "\n" |
|
|
4186 << " number mode arch name\n" |
|
|
4187 << " ------ ---- ---- ----\n"; |
|
|
4188 |
|
6757
|
4189 for (ostrl_map::const_iterator p = list.begin (); p != list.end (); p++) |
|
2117
|
4190 { |
|
6757
|
4191 octave_stream os = p->second; |
|
2117
|
4192 |
|
4326
|
4193 buf << " " |
|
|
4194 << std::setiosflags (std::ios::right) |
|
6757
|
4195 << std::setw (4) << p->first << " " |
|
4326
|
4196 << std::setiosflags (std::ios::left) |
|
|
4197 << std::setw (3) |
|
|
4198 << octave_stream::mode_as_string (os.mode ()) |
|
|
4199 << " " |
|
|
4200 << std::setw (9) |
|
|
4201 << oct_mach_info::float_format_as_string (os.float_format ()) |
|
|
4202 << " " |
|
|
4203 << os.name () << "\n"; |
|
2117
|
4204 } |
|
|
4205 |
|
5765
|
4206 buf << "\n"; |
|
|
4207 |
|
|
4208 retval = buf.str (); |
|
2117
|
4209 |
|
|
4210 return retval; |
|
|
4211 } |
|
|
4212 |
|
|
4213 octave_value |
|
|
4214 octave_stream_list::do_open_file_numbers (void) const |
|
|
4215 { |
|
6757
|
4216 Matrix retval (1, list.size (), 0.0); |
|
2117
|
4217 |
|
|
4218 int num_open = 0; |
|
|
4219 |
|
6757
|
4220 for (ostrl_map::const_iterator p = list.begin (); p != list.end (); p++) |
|
2117
|
4221 { |
|
6757
|
4222 // Skip stdin, stdout, and stderr. |
|
|
4223 |
|
|
4224 if (p->first > 2 && p->second) |
|
|
4225 retval(0,num_open++) = p->first; |
|
2117
|
4226 } |
|
|
4227 |
|
|
4228 retval.resize ((num_open > 0), num_open); |
|
|
4229 |
|
|
4230 return retval; |
|
|
4231 } |
|
|
4232 |
|
|
4233 int |
|
2609
|
4234 octave_stream_list::do_get_file_number (const octave_value& fid) const |
|
2117
|
4235 { |
|
|
4236 int retval = -1; |
|
|
4237 |
|
|
4238 if (fid.is_string ()) |
|
|
4239 { |
|
3523
|
4240 std::string nm = fid.string_value (); |
|
2117
|
4241 |
|
6757
|
4242 for (ostrl_map::const_iterator p = list.begin (); p != list.end (); p++) |
|
2117
|
4243 { |
|
6757
|
4244 // stdin (std::cin), stdout (std::cout), and stderr (std::cerr) |
|
|
4245 // are unnamed. |
|
|
4246 |
|
|
4247 if (p->first > 2) |
|
2117
|
4248 { |
|
6757
|
4249 octave_stream os = p->second; |
|
|
4250 |
|
|
4251 if (os && os.name () == nm) |
|
|
4252 { |
|
|
4253 retval = p->first; |
|
|
4254 break; |
|
|
4255 } |
|
2117
|
4256 } |
|
|
4257 } |
|
|
4258 } |
|
|
4259 else |
|
|
4260 { |
|
|
4261 int conv_err = 0; |
|
|
4262 |
|
|
4263 int int_fid = convert_to_valid_int (fid, conv_err); |
|
|
4264 |
|
|
4265 if (conv_err) |
|
3523
|
4266 ::error ("file id must be a file object, std::string, or integer value"); |
|
2117
|
4267 else |
|
|
4268 retval = int_fid; |
|
|
4269 } |
|
|
4270 |
|
|
4271 return retval; |
|
|
4272 } |
|
|
4273 |
|
|
4274 /* |
|
|
4275 ;;; Local Variables: *** |
|
|
4276 ;;; mode: C++ *** |
|
|
4277 ;;; End: *** |
|
|
4278 */ |
