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1 /* |
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2 |
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3 Copyright (C) 1996, 1997 John W. Eaton |
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4 |
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5 This file is part of Octave. |
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6 |
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7 Octave is free software; you can redistribute it and/or modify it |
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8 under the terms of the GNU General Public License as published by the |
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9 Free Software Foundation; either version 2, or (at your option) any |
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10 later version. |
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11 |
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12 Octave is distributed in the hope that it will be useful, but WITHOUT |
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13 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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15 for more details. |
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16 |
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17 You should have received a copy of the GNU General Public License |
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18 along with Octave; see the file COPYING. If not, write to the Free |
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19 Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
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20 |
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21 */ |
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22 |
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23 #if !defined (octave_octave_strstream_h) |
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24 #define octave_octave_strstream_h 1 |
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25 |
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26 #include <string> |
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27 |
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28 #include <strstream.h> |
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29 |
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30 #include "oct-stream.h" |
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31 |
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32 class |
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33 octave_base_strstream : public octave_base_stream |
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34 { |
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35 public: |
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36 |
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37 octave_base_strstream (ios::openmode arg_md = ios::out, |
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38 oct_mach_info::float_format flt_fmt = |
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39 oct_mach_info::native) |
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40 : octave_base_stream (arg_md, flt_fmt) { } |
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41 |
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42 ~octave_base_strstream (void) { } |
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43 |
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44 // Position a stream at OFFSET relative to ORIGIN. |
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45 |
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46 int seek (streamoff offset, ios::seek_dir origin); |
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47 |
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48 // Return current stream position. |
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49 |
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50 long tell (void) const; |
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51 |
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52 // The name of the file. |
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53 |
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54 string name (void) { return string (); } |
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55 |
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56 virtual streambuf *rdbuf (void) = 0; |
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57 |
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58 virtual bool bad (void) const = 0; |
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59 |
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60 virtual void clear (void) = 0; |
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61 |
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62 private: |
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63 |
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64 // No copying! |
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65 |
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66 octave_base_strstream (const octave_base_strstream&); |
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67 |
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68 octave_base_strstream& operator = (const octave_base_strstream&); |
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69 }; |
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70 |
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71 class |
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72 octave_istrstream : public octave_base_strstream |
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73 { |
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74 public: |
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75 |
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76 octave_istrstream (const char *data, |
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77 ios::openmode arg_md = ios::out, |
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78 oct_mach_info::float_format flt_fmt = |
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79 oct_mach_info::native) |
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80 : octave_base_strstream (arg_md, flt_fmt), is (data) { } |
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81 |
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82 octave_istrstream (const string& data, |
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83 ios::openmode arg_md = ios::out, |
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84 oct_mach_info::float_format flt_fmt = |
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85 oct_mach_info::native) |
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86 : octave_base_strstream (arg_md, flt_fmt), is (data.c_str ()) { } |
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87 |
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88 ~octave_istrstream (void) { } |
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89 |
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90 // Return non-zero if EOF has been reached on this stream. |
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91 |
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92 bool eof (void) const { return is.eof (); } |
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93 |
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94 istream *input_stream (void) { return &is; } |
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95 |
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96 ostream *output_stream (void) { return 0; } |
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97 |
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98 streambuf *rdbuf (void) { return is ? is.rdbuf () : 0; } |
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99 |
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100 bool bad (void) const { return is.bad (); } |
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101 |
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102 void clear (void) { is.clear (); } |
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103 |
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104 private: |
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105 |
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106 istrstream is; |
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107 |
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108 // No copying! |
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109 |
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110 octave_istrstream (const octave_istrstream&); |
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111 |
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112 octave_istrstream& operator = (const octave_istrstream&); |
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113 }; |
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114 |
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115 class |
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116 octave_ostrstream : public octave_base_strstream |
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117 { |
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118 public: |
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119 |
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120 octave_ostrstream (ios::openmode arg_md = ios::out, |
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121 oct_mach_info::float_format flt_fmt = |
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122 oct_mach_info::native) |
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123 : octave_base_strstream (arg_md, flt_fmt) { } |
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124 |
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125 ~octave_ostrstream (void) { } |
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126 |
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127 // Return non-zero if EOF has been reached on this stream. |
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128 |
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129 bool eof (void) const { return os.eof (); } |
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130 |
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131 istream *input_stream (void) { return 0; } |
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132 |
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133 ostream *output_stream (void) { return &os; } |
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134 |
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135 char *str (void) |
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136 { |
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137 os << ends; |
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138 return os.str (); |
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139 } |
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140 |
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141 streambuf *rdbuf (void) { return os ? os.rdbuf () : 0; } |
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142 |
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143 bool bad (void) const { return os.bad (); } |
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144 |
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145 void clear (void) { os.clear (); } |
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146 |
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147 private: |
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148 |
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149 ostrstream os; |
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150 |
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151 // No copying! |
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152 |
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153 octave_ostrstream (const octave_ostrstream&); |
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154 |
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155 octave_ostrstream& operator = (const octave_ostrstream&); |
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156 }; |
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157 |
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158 #endif |
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159 |
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160 /* |
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161 ;;; Local Variables: *** |
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162 ;;; mode: C++ *** |
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163 ;;; End: *** |
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164 */ |
