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annotate libinterp/corefcn/oct-strstrm.h @ 33625:d213a148b3f1 default tip @

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ensure exp. terminal widget has focus at startup * main-window.cc (main_window): call focus_command_window only if event loop is idle by using a single shot timer * main-window.h: make focus_command_window a public slot
author Torsten Lilge <ttl-octave@mailbox.org>
date Sun, 26 May 2024 02:29:44 +0200
parents 4b601ca024d5
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 ////////////////////////////////////////////////////////////////////////
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2 //
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3 // Copyright (C) 1996-2024 The Octave Project Developers
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4 //
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5 // See the file COPYRIGHT.md in the top-level directory of this
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6 // distribution or <https://octave.org/copyright/>.
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7 //
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8 // This file is part of Octave.
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9 //
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10 // Octave is free software: you can redistribute it and/or modify it
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11 // under the terms of the GNU General Public License as published by
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12 // the Free Software Foundation, either version 3 of the License, or
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13 // (at your option) any later version.
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14 //
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15 // Octave is distributed in the hope that it will be useful, but
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16 // WITHOUT ANY WARRANTY; without even the implied warranty of
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17 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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18 // GNU General Public License for more details.
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19 //
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20 // You should have received a copy of the GNU General Public License
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21 // along with Octave; see the file COPYING. If not, see
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22 // <https://www.gnu.org/licenses/>.
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23 //
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24 ////////////////////////////////////////////////////////////////////////
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25
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26 #if ! defined (octave_oct_strstrm_h)
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27 #define octave_oct_strstrm_h 1
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28
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29 #include "octave-config.h"
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30
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31 #include <string>
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32 #include <sstream>
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33
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34 #include "oct-stream.h"
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35
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36 OCTAVE_BEGIN_NAMESPACE(octave)
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37
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38 class base_strstream : public base_stream
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39 {
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40 public:
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41
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42 base_strstream (std::ios::openmode m = std::ios::out,
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43 mach_info::float_format ff
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44 = mach_info::native_float_format (),
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45 const std::string& encoding = "utf-8")
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46 : base_stream (m, ff, encoding) { }
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47
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48 OCTAVE_DISABLE_COPY_MOVE (base_strstream)
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49
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50 protected:
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51
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52 ~base_strstream () = default;
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53
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54 public:
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55
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56 // Position a stream at OFFSET relative to ORIGIN.
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57
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58 int seek (off_t, int);
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59
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60 // Return current stream position.
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61
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62 virtual off_t tell ();
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63
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64 // The name of the file.
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65
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66 std::string name () const { return ""; }
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67
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68 virtual std::streambuf * rdbuf () = 0;
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69
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70 virtual bool bad () const = 0;
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71
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72 virtual void clear () = 0;
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73 };
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74
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75 class istrstream : public base_strstream
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76 {
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77 public:
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78
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79 istrstream (const char *data,
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80 std::ios::openmode arg_md = std::ios::out,
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81 mach_info::float_format ff = mach_info::native_float_format (),
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82 const std::string& encoding = "utf-8")
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83 : base_strstream (arg_md, ff, encoding), m_istream (data) { }
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84
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85 istrstream (const std::string& data,
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86 std::ios::openmode arg_md = std::ios::out,
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87 mach_info::float_format ff = mach_info::native_float_format (),
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88 const std::string& encoding = "utf-8")
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89 : base_strstream (arg_md, ff, encoding), m_istream (data) { }
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90
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91 OCTAVE_DISABLE_CONSTRUCT_COPY_MOVE (istrstream)
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92
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93 protected:
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94
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95 ~istrstream () = default;
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97 public:
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98
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99
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100 static stream
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101 create (const char *data, std::ios::openmode arg_md = std::ios::out,
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102 mach_info::float_format ff = mach_info::native_float_format (),
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103 const std::string& encoding = "utf-8");
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104
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105 static stream
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106 create (const std::string& data, std::ios::openmode arg_md = std::ios::out,
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107 mach_info::float_format ff = mach_info::native_float_format (),
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108 const std::string& encoding = "utf-8");
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109
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110 // Return nonzero if EOF has been reached on this stream.
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111
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112 bool eof () const { return m_istream.eof (); }
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113
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114 std::istream * input_stream () { return &m_istream; }
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115
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116 std::ostream * output_stream () { return nullptr; }
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117
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118 off_t tell () { return m_istream.tellg (); }
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119
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120 std::streambuf * rdbuf ()
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121 {
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122 return m_istream ? m_istream.rdbuf () : nullptr;
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123 }
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124
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125 bool bad () const { return m_istream.bad (); }
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126
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127 void clear () { m_istream.clear (); }
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128
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129 private:
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130
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131 std::istringstream m_istream;
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132 };
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133
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134 class ostrstream : public base_strstream
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135 {
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136 public:
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137
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138 ostrstream (std::ios::openmode arg_md = std::ios::out,
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139 mach_info::float_format ff = mach_info::native_float_format (),
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140 const std::string& encoding = "utf-8")
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141 : base_strstream (arg_md, ff, encoding), m_ostream () { }
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142
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143 OCTAVE_DISABLE_COPY_MOVE (ostrstream)
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145 protected:
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146
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147 ~ostrstream () = default;
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148
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149 public:
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150
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151 static stream
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152 create (std::ios::openmode arg_md = std::ios::out,
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153 mach_info::float_format ff = mach_info::native_float_format (),
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154 const std::string& encoding = "utf-8");
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155
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156 // Return nonzero if EOF has been reached on this stream.
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157
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158 bool eof () const { return m_ostream.eof (); }
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159
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160 std::istream * input_stream () { return nullptr; }
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161
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162 std::ostream * output_stream () { return &m_ostream; }
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163
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164 std::string str () { return m_ostream.str (); }
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165
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166 std::streambuf * rdbuf ()
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167 {
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168 return m_ostream ? m_ostream.rdbuf () : nullptr;
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169 }
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170
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171 bool bad () const { return m_ostream.bad (); }
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172
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173 void clear () { m_ostream.clear (); }
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174
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175 private:
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176
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177 std::ostringstream m_ostream;
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178 };
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179
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180 OCTAVE_END_NAMESPACE(octave)
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181
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182 #endif