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1 /* |
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2 |
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3 Copyright (C) 2003, 2004, 2005, 2006, 2007 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 3 of the License, or (at your |
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10 option) any 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, see |
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19 <http://www.gnu.org/licenses/>. |
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20 |
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21 */ |
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22 |
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23 #if !defined (octave_ls_oct_ascii_h) |
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24 #define octave_ls_oct_ascii_h 1 |
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25 |
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26 #include <cfloat> |
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27 |
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28 #include <sstream> |
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29 #include <string> |
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30 |
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31 #include "str-vec.h" |
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32 |
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33 // Flag for cell elements |
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34 #define CELL_ELT_TAG "<cell-element>" |
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35 |
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36 // Used when converting Inf to something that gnuplot can read. |
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37 |
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38 #ifndef OCT_RBV |
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39 #define OCT_RBV DBL_MAX / 100.0 |
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40 #endif |
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41 |
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42 extern OCTINTERP_API std::string |
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43 extract_keyword (std::istream& is, const char *keyword, |
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44 const bool next_only = false); |
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45 |
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46 extern OCTINTERP_API std::string |
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47 read_ascii_data (std::istream& is, const std::string& filename, bool& global, |
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48 octave_value& tc, octave_idx_type count); |
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49 |
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50 extern OCTINTERP_API bool |
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51 save_ascii_data (std::ostream& os, const octave_value& val_arg, |
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52 const std::string& name, bool mark_as_global, int precision); |
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53 |
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54 extern OCTINTERP_API bool |
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55 save_ascii_data_for_plotting (std::ostream& os, const octave_value& t, |
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56 const std::string& name); |
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57 |
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58 extern OCTINTERP_API bool |
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59 save_three_d (std::ostream& os, const octave_value& t, |
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60 bool parametric = false); |
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61 |
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62 // Match KEYWORD on stream IS, placing the associated value in VALUE, |
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63 // returning TRUE if successful and FALSE otherwise. |
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64 // |
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65 // Input should look something like: |
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66 // |
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67 // [%#][ \t]*keyword[ \t]*int-value.*\n |
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68 |
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69 template <class T> |
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70 bool |
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71 extract_keyword (std::istream& is, const char *keyword, T& value, |
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72 const bool next_only = false) |
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73 { |
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74 bool status = false; |
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75 value = 0; |
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76 |
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77 char c; |
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78 while (is.get (c)) |
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79 { |
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80 if (c == '%' || c == '#') |
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81 { |
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82 std::ostringstream buf; |
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83 |
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84 while (is.get (c) && (c == ' ' || c == '\t' || c == '%' || c == '#')) |
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85 ; // Skip whitespace and comment characters. |
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86 |
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87 if (isalpha (c)) |
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88 buf << c; |
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89 |
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90 while (is.get (c) && isalpha (c)) |
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91 buf << c; |
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92 |
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93 std::string tmp = buf.str (); |
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94 bool match = (tmp.compare (0, strlen (keyword), keyword) == 0); |
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95 |
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96 if (match) |
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97 { |
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98 while (is.get (c) && (c == ' ' || c == '\t' || c == ':')) |
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99 ; // Skip whitespace and the colon. |
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100 |
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101 is.putback (c); |
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102 if (c != '\n') |
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103 is >> value; |
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104 if (is) |
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105 status = true; |
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106 while (is.get (c) && c != '\n') |
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107 ; // Skip to beginning of next line; |
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108 break; |
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109 } |
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110 else if (next_only) |
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111 break; |
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112 } |
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113 } |
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114 return status; |
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115 } |
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116 |
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117 // Match one of the elements in KEYWORDS on stream IS, placing the |
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118 // matched keyword in KW and the associated value in VALUE, |
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119 // returning TRUE if successful and FALSE otherwise. |
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120 // |
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121 // Input should look something like: |
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122 // |
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123 // [%#][ \t]*keyword[ \t]*int-value.*\n |
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124 |
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125 template <class T> |
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126 bool |
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127 extract_keyword (std::istream& is, const string_vector& keywords, |
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128 std::string& kw, T& value, const bool next_only = false) |
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129 { |
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130 bool status = false; |
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131 kw = ""; |
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132 value = 0; |
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133 |
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134 char c; |
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135 while (is.get (c)) |
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136 { |
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137 if (c == '%' || c == '#') |
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138 { |
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139 std::ostringstream buf; |
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140 |
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141 while (is.get (c) && (c == ' ' || c == '\t' || c == '%' || c == '#')) |
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142 ; // Skip whitespace and comment characters. |
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143 |
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144 if (isalpha (c)) |
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145 buf << c; |
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146 |
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147 while (is.get (c) && isalpha (c)) |
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148 buf << c; |
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149 |
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150 std::string tmp = buf.str (); |
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151 |
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152 for (int i = 0; i < keywords.length (); i++) |
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153 { |
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154 int match = (tmp == keywords[i]); |
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155 |
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156 if (match) |
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157 { |
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158 kw = keywords[i]; |
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159 |
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160 while (is.get (c) && (c == ' ' || c == '\t' || c == ':')) |
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161 ; // Skip whitespace and the colon. |
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162 |
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163 is.putback (c); |
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164 if (c != '\n') |
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165 is >> value; |
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166 if (is) |
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167 status = true; |
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168 while (is.get (c) && c != '\n') |
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169 ; // Skip to beginning of next line; |
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170 return status; |
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171 } |
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172 } |
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173 |
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174 if (next_only) |
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175 break; |
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176 } |
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177 } |
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178 return status; |
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179 } |
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180 |
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181 #endif |
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182 |
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183 /* |
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184 ;;; Local Variables: *** |
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185 ;;; mode: C++ *** |
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186 ;;; End: *** |
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187 */ |
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188 |
