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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 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 #ifdef HAVE_CONFIG_H |
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1192
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24 #include <config.h> |
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25 #endif |
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26 |
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27 #include <cctype> |
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28 #include <sstream> |
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29 |
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30 #include "dMatrix.h" |
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31 |
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32 #include "Cell.h" |
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33 #include "defun.h" |
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34 #include "error.h" |
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35 #include "gripes.h" |
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36 #include "ov.h" |
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37 #include "oct-obj.h" |
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38 #include "unwind-prot.h" |
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39 #include "utils.h" |
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40 |
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41 DEFUN (char, args, , |
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42 "-*- texinfo -*-\n\ |
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43 @deftypefn {Built-in Function} {} char (@var{x})\n\ |
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44 @deftypefnx {Built-in Function} {} char (@var{cell_array})\n\ |
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45 @deftypefnx {Built-in Function} {} char (@var{s1}, @var{s2}, @dots{})\n\ |
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46 Create a string array from a numeric matrix, cell array, or list of\n\ |
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47 \n\ |
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48 If the argument is a numeric matrix, each element of the matrix is\n\ |
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49 converted to the corresponding ASCII character. For example,\n\ |
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50 \n\ |
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51 @example\n\ |
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52 @group\n\ |
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53 char ([97, 98, 99])\n\ |
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54 @result{} \"abc\"\n\ |
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55 @end group\n\ |
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56 @end example\n\ |
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57 \n\ |
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58 If the argument is a cell array of strings, the result is a string array\n\ |
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59 with each element corresponding to one element of the cell array.\n\ |
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60 \n\ |
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61 For multiple string arguments, the result is a string array with each\n\ |
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62 element corresponding to the arguments.\n\ |
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63 \n\ |
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64 The returned values are padded with blanks as needed to make each row\n\ |
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65 of the string array have the same length.\n\ |
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66 @end deftypefn") |
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67 { |
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68 octave_value retval; |
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69 |
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70 int nargin = args.length (); |
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71 |
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72 if (nargin == 1) |
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73 retval = args(0).convert_to_str (true, true, |
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74 args(0).is_dq_string () ? '"' : '\''); |
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75 else if (nargin > 1) |
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76 { |
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77 int n_elts = 0; |
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78 |
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79 int max_len = 0; |
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80 |
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81 for (int i = 0; i < nargin; i++) |
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82 { |
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5707
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83 string_vector s = args(i).all_strings (); |
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84 |
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85 if (error_state) |
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86 { |
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87 error ("char: unable to convert some args to strings"); |
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88 return retval; |
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89 } |
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90 |
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91 n_elts += s.length (); |
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92 |
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93 int s_max_len = s.max_length (); |
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94 |
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95 if (s_max_len > max_len) |
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96 max_len = s_max_len; |
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97 } |
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98 |
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99 string_vector result (n_elts); |
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100 |
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101 int k = 0; |
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102 |
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103 for (int i = 0; i < nargin; i++) |
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104 { |
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105 string_vector s = args(i).all_strings (); |
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106 |
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107 int n = s.length (); |
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108 |
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109 for (int j = 0; j < n; j++) |
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110 { |
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111 std::string t = s[j]; |
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112 int t_len = t.length (); |
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113 |
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114 if (max_len > t_len) |
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115 t += std::string (max_len - t_len, ' '); |
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116 |
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117 result[k++] = t; |
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118 } |
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119 } |
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120 |
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121 retval = octave_value (result, '\''); |
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122 } |
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123 else |
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124 print_usage (); |
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125 |
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126 return retval; |
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127 } |
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128 |
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129 DEFUN (ischar, args, , |
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130 "-*- texinfo -*-\n\ |
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131 @deftypefn {Built-in Function} {} ischar (@var{a})\n\ |
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132 Return 1 if @var{a} is a string. Otherwise, return 0.\n\ |
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133 @end deftypefn") |
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134 { |
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4233
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135 octave_value retval; |
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136 |
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137 int nargin = args.length (); |
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138 |
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139 if (nargin == 1 && args(0).is_defined ()) |
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140 retval = args(0).is_string (); |
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141 else |
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142 print_usage (); |
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143 |
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144 return retval; |
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145 } |
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146 |
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5415
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147 DEFUN (strcmp, args, , |
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148 "-*- texinfo -*-\n\ |
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149 @deftypefn {Built-in Function} {} strcmp (@var{s1}, @var{s2})\n\ |
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150 Return 1 if the character strings @var{s1} and @var{s2} are the same,\n\ |
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151 and 0 otherwise.\n\ |
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152 \n\ |
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153 If either @var{s1} or @var{s2} is a cell array of strings, then an array\n\ |
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154 of the same size is returned, containing the values described above for\n\ |
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155 every member of the cell array. The other argument may also be a cell\n\ |
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156 array of strings (of the same size or with only one element), char matrix\n\ |
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157 or character string.\n\ |
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158 \n\ |
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159 @strong{Caution:} For compatibility with @sc{Matlab}, Octave's strcmp\n\ |
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160 function returns 1 if the character strings are equal, and 0 otherwise.\n\ |
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161 This is just the opposite of the corresponding C library function.\n\ |
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162 @seealso{strcmpi, strncmp, strncmpi}\n\ |
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163 @end deftypefn") |
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164 { |
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165 octave_value retval; |
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166 |
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167 if (args.length () == 2) |
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168 { |
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169 bool s1_string = args(0).is_string (); |
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170 bool s1_cell = args(0).is_cell (); |
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171 bool s2_string = args(1).is_string (); |
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172 bool s2_cell = args(1).is_cell (); |
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173 |
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174 if (s1_string && s2_string) |
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175 { |
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176 // Must match exactly in all dimensions. |
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177 |
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178 const dim_vector dv1 = args(0).dims (); |
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179 const dim_vector dv2 = args(1).dims (); |
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180 |
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181 if (dv1.length () == dv2.length ()) |
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182 { |
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183 for (int i = 0; i < dv1.length (); i++) |
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184 { |
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185 if (dv1(i) != dv2(i)) |
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186 { |
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187 retval = false; |
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188 return retval; |
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189 } |
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190 } |
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191 |
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192 if (dv1(0) == 0) |
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193 retval = true; |
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194 else |
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195 { |
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196 charNDArray s1 = args(0).char_array_value (); |
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197 charNDArray s2 = args(1).char_array_value (); |
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198 |
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199 for (int i = 0; i < dv1.numel (); i++) |
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200 { |
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201 if (s1(i) != s2(i)) |
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202 { |
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203 retval = false; |
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204 return retval; |
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205 } |
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206 } |
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207 |
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208 retval = true; |
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209 } |
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210 } |
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211 } |
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212 else if ((s1_string && s2_cell) || (s1_cell && s2_string)) |
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213 { |
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214 string_vector str; |
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215 Cell cell; |
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216 int r; |
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217 |
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218 if (s1_string) |
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219 { |
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220 str = args(0).all_strings (); |
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221 r = args(0).rows (); |
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222 cell = args(1).cell_value (); |
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223 } |
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224 else |
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225 { |
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226 str = args(1).all_strings (); |
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227 r = args(1).rows (); |
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228 cell = args(0).cell_value (); |
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229 } |
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230 |
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5862
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231 if (r == 0 || r == 1) |
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232 { |
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233 // Broadcast the string. |
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234 |
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235 boolNDArray output (cell.dimensions); |
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236 |
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5862
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237 std::string s = r == 0 ? std::string () : str[0]; |
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238 |
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5416
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239 for (int i = 0; i < cell.length (); i++) |
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240 { |
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241 if (cell(i).is_string ()) |
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242 output(i) = (cell(i).string_value () == s); |
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243 else |
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244 output(i) = false; |
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245 } |
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246 |
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247 retval = output; |
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248 } |
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249 else if (r > 1) |
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250 { |
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5416
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251 if (cell.length () == 1) |
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252 { |
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253 // Broadcast the cell. |
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254 |
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255 const dim_vector dv (r, 1); |
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256 boolNDArray output (dv); |
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257 |
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258 if (cell(0).is_string ()) |
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259 { |
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260 const std::string str2 = cell(0).string_value (); |
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261 |
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262 for (int i = 0; i < r; i++) |
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263 output(i) = (str[i] == str2); |
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264 } |
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265 else |
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266 { |
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267 for (int i = 0; i < r; i++) |
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268 output(i) = false; |
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269 } |
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270 |
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271 retval = output; |
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272 } |
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273 else |
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274 { |
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275 // Must match in all dimensions. |
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276 |
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277 boolNDArray output (cell.dimensions); |
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278 |
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5416
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279 if (cell.length () == r) |
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280 { |
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281 for (int i = 0; i < r; i++) |
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6250
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282 { |
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283 if (cell(i).is_string ()) |
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284 output(i) = (str[i] == cell(i).string_value ()); |
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285 else |
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286 output(i) = false; |
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287 } |
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288 |
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289 retval = output; |
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290 } |
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291 else |
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292 retval = false; |
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293 } |
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294 } |
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295 } |
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296 else if (s1_cell && s2_cell) |
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297 { |
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5416
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298 Cell cell1; |
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299 Cell cell2; |
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5415
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300 |
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5416
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301 int r1 = args(0).numel (); |
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302 int r2; |
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303 |
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304 if (r1 == 1) |
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305 { |
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306 // Make the singleton cell2. |
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307 |
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5416
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308 cell1 = args(1).cell_value (); |
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309 cell2 = args(0).cell_value (); |
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310 r1 = cell1.length (); |
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311 r2 = 1; |
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312 } |
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313 else |
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314 { |
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315 cell1 = args(0).cell_value (); |
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316 cell2 = args(1).cell_value (); |
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317 r2 = cell2.length (); |
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318 } |
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5415
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319 |
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320 const dim_vector size1 = cell1.dimensions; |
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321 const dim_vector size2 = cell2.dimensions; |
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322 |
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323 boolNDArray output (size1); |
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324 |
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325 if (r2 == 1) |
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326 { |
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327 // Broadcast cell2. |
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328 |
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329 if (! cell2(0).is_string ()) |
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330 { |
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5416
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331 for (int i = 0; i < r1; i++) |
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332 output(i) = false; |
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5415
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333 } |
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334 else |
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5416
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335 { |
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336 const std::string str2 = cell2(0).string_value (); |
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337 |
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338 for (int i = 0; i < r1; i++) |
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339 { |
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340 if (cell1(i).is_string ()) |
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341 { |
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342 const std::string str1 = cell1(i).string_value (); |
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343 output(i) = (str1 == str2); |
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344 } |
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345 else |
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346 output(i) = false; |
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347 } |
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348 } |
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5415
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349 } |
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5416
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350 else |
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351 { |
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352 if (size1 != size2) |
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353 { |
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354 error ("strcmp: nonconformant cell arrays"); |
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355 return retval; |
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356 } |
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357 |
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358 for (int i = 0; i < r1; i++) |
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359 { |
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360 if (cell1(i).is_string () && cell2(i).is_string ()) |
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361 { |
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362 const std::string str1 = cell1(i).string_value (); |
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363 const std::string str2 = cell2(i).string_value (); |
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364 output(i) = (str1 == str2); |
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365 } |
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366 else |
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367 output(i) = false; |
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368 } |
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369 } |
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370 |
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371 retval = output; |
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5415
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372 } |
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5531
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373 else |
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374 retval = false; |
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5415
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375 } |
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5416
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376 else |
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5823
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377 print_usage (); |
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5415
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378 |
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379 return retval; |
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380 } |
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381 |
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5862
|
382 /* |
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383 %!shared x |
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384 %! x = char (zeros (0, 2)); |
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385 %!assert (strcmp ('', x) == false); |
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386 %!assert (strcmp (x, '') == false); |
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387 %!assert (strcmp (x, x) == true); |
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5911
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388 ## %!assert (strcmp ({''}, x) == false); |
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389 ## %!assert (strcmp ({x}, '') == false); |
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390 ## %!assert (strcmp ({x}, x) == true); |
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391 ## %!assert (strcmp ('', {x}) == false); |
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392 ## %!assert (strcmp (x, {''}) == false); |
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393 ## %!assert (strcmp (x, {x}) == true); |
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394 ## %!assert (all (strcmp ({x; x}, '') == [false; false])); |
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395 ## %!assert (all (strcmp ({x; x}, {''}) == [false; false])); |
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396 ## %!assert (all (strcmp ('', {x; x}) == [false; false])); |
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397 ## %!assert (all (strcmp ({''}, {x; x}) == [false; false])); |
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5862
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398 %!assert (strcmp ({'foo'}, x) == false); |
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399 %!assert (strcmp ({'foo'}, 'foo') == true); |
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400 %!assert (strcmp ({'foo'}, x) == false); |
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401 %!assert (strcmp (x, {'foo'}) == false); |
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402 %!assert (strcmp ('foo', {'foo'}) == true); |
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403 %!assert (strcmp (x, {'foo'}) == false); |
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404 %!shared y |
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405 %! y = char (zeros (2, 0)); |
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406 %!assert (strcmp ('', y) == false); |
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407 %!assert (strcmp (y, '') == false); |
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408 %!assert (strcmp (y, y) == true); |
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409 %!assert (all (strcmp ({''}, y) == [true; true])); |
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410 %!assert (strcmp ({y}, '') == true); |
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411 %!assert (all (strcmp ({y}, y) == [true; true])); |
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412 %!assert (all (strcmp ('', {y}) == [true; true])); |
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413 %!assert (all (strcmp (y, {''}) == [true; true])); |
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414 %!assert (all (strcmp (y, {y}) == [true; true])); |
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5911
|
415 ## %!assert (all (strcmp ({y; y}, '') == [false; false])); |
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416 ## %!assert (all (strcmp ({y; y}, {''}) == [false; false])); |
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417 ## %!assert (all (strcmp ('', {y; y}) == [false; false])); |
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418 ## %!assert (all (strcmp ({''}, {y; y}) == [false; false])); |
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5862
|
419 %!assert (all (strcmp ({'foo'}, y) == [false; false])); |
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420 %!assert (all (strcmp ({'foo'}, y) == [false; false])); |
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421 %!assert (all (strcmp (y, {'foo'}) == [false; false])); |
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|
422 %!assert (all (strcmp (y, {'foo'}) == [false; false])); |
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|
423 */ |
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|
424 |
|
6250
|
425 DEFUN (strncmp, args, , |
|
|
426 "-*- texinfo -*-\n\ |
|
6678
|
427 @deftypefn {Built-in Function} {} strncmp (@var{s1}, @var{s2}, @var{n})\n\ |
|
6250
|
428 Return 1 if the first @var{n} characters of strings @var{s1} and @var{s2} are the same,\n\ |
|
|
429 and 0 otherwise.\n\ |
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|
430 \n\ |
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|
431 @example\n\ |
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|
432 @group\n\ |
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|
433 strncmp (\"abce\", \"abcd\", 3)\n\ |
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|
434 @result{} 1\n\ |
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|
435 @end group\n\ |
|
|
436 @end example\n\ |
|
|
437 \n\ |
|
|
438 If either @var{s1} or @var{s2} is a cell array of strings, then an array\n\ |
|
|
439 of the same size is returned, containing the values described above for\n\ |
|
|
440 every member of the cell array. The other argument may also be a cell\n\ |
|
|
441 array of strings (of the same size or with only one element), char matrix\n\ |
|
|
442 or character string.\n\ |
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|
443 \n\ |
|
|
444 @example\n\ |
|
|
445 @group\n\ |
|
6256
|
446 strncmp (\"abce\", @{\"abcd\", \"bca\", \"abc\"@}, 3)\n\ |
|
6250
|
447 @result{} [1, 0, 1]\n\ |
|
|
448 @end group\n\ |
|
|
449 @end example\n\ |
|
|
450 \n\ |
|
|
451 @strong{Caution:} For compatibility with @sc{Matlab}, Octave's strncmp\n\ |
|
|
452 function returns 1 if the character strings are equal, and 0 otherwise.\n\ |
|
|
453 This is just the opposite of the corresponding C library function.\n\ |
|
|
454 @seealso{strncmpi, strcmp, strcmpi}\n\ |
|
|
455 @end deftypefn") |
|
|
456 { |
|
|
457 octave_value retval; |
|
|
458 |
|
|
459 if (args.length () == 3) |
|
|
460 { |
|
|
461 bool s1_string = args(0).is_string (); |
|
|
462 bool s1_cell = args(0).is_cell (); |
|
|
463 bool s2_string = args(1).is_string (); |
|
|
464 bool s2_cell = args(1).is_cell (); |
|
|
465 |
|
|
466 // Match only first n strings. |
|
|
467 int n = args(2).int_value (); |
|
|
468 |
|
|
469 if (n <= 0) |
|
|
470 { |
|
|
471 error ("strncmp: N must be greater than 0"); |
|
|
472 return retval; |
|
|
473 } |
|
|
474 |
|
|
475 if (s1_string && s2_string) |
|
|
476 { |
|
|
477 // The only restriction here is that each string has equal or |
|
|
478 // greater than n characters |
|
|
479 |
|
|
480 const dim_vector dv1 = args(0).dims (); |
|
|
481 const dim_vector dv2 = args(1).dims (); |
|
|
482 |
|
|
483 if (dv1.numel () >= n && dv2.numel () >= n) |
|
|
484 { |
|
|
485 // Follow Matlab in the sense that the first n characters of |
|
|
486 // the two strings (in column major order) need to be the same. |
|
|
487 charNDArray s1 = args(0).char_array_value (); |
|
|
488 charNDArray s2 = args(1).char_array_value (); |
|
|
489 |
|
|
490 for (int i = 0; i < n; i++) |
|
|
491 { |
|
|
492 if (s1(i) != s2(i)) |
|
|
493 { |
|
|
494 retval = false; |
|
|
495 return retval; |
|
|
496 } |
|
|
497 } |
|
|
498 |
|
|
499 retval = true; |
|
|
500 } |
|
|
501 else |
|
|
502 retval = false; |
|
|
503 } |
|
|
504 else if ((s1_string && s2_cell) || (s1_cell && s2_string)) |
|
|
505 { |
|
|
506 string_vector str; |
|
|
507 Cell cell; |
|
|
508 int r, c; |
|
|
509 |
|
|
510 if (s1_string) |
|
|
511 { |
|
|
512 str = args(0).all_strings (); |
|
|
513 r = args(0).rows (); |
|
|
514 c = args(0).columns (); |
|
|
515 cell = args(1).cell_value (); |
|
|
516 } |
|
|
517 else |
|
|
518 { |
|
|
519 str = args(1).all_strings (); |
|
|
520 r = args(1).rows (); |
|
|
521 c = args(1).columns (); |
|
|
522 cell = args(0).cell_value (); |
|
|
523 } |
|
|
524 |
|
|
525 if (r == 1) |
|
|
526 { |
|
|
527 // Broadcast the string. |
|
|
528 |
|
|
529 boolNDArray output (cell.dimensions); |
|
|
530 |
|
|
531 if (c < n) |
|
|
532 { |
|
|
533 for (int i = 0; i < cell.length (); i++) |
|
|
534 output(i) = false; |
|
|
535 } |
|
|
536 else |
|
|
537 { |
|
|
538 for (int i = 0; i < cell.length (); i++) |
|
|
539 { |
|
|
540 if (cell(i).is_string ()) |
|
|
541 { |
|
|
542 const std::string str2 = cell(i).string_value (); |
|
|
543 |
|
|
544 if (str2.length() >= n) |
|
|
545 { |
|
|
546 if (str2.compare (0, n, str[0], 0, n) == 0) |
|
|
547 output(i) = true; |
|
|
548 else |
|
|
549 output(i) = false; |
|
|
550 } |
|
|
551 else |
|
|
552 output(i) = false; |
|
|
553 } |
|
|
554 } |
|
|
555 } |
|
|
556 |
|
|
557 retval = output; |
|
|
558 } |
|
|
559 else if (r > 1) |
|
|
560 { |
|
|
561 if (cell.length () == 1) |
|
|
562 { |
|
|
563 // Broadcast the cell. |
|
|
564 |
|
|
565 const dim_vector dv (r, 1); |
|
|
566 boolNDArray output (dv); |
|
|
567 |
|
|
568 if (cell(0).is_string () && c >= n) |
|
|
569 { |
|
|
570 const std::string str2 = cell(0).string_value (); |
|
|
571 |
|
|
572 if (str2.length () >= n) |
|
|
573 { |
|
|
574 for (int i = 0; i < r; i++) |
|
|
575 { |
|
|
576 if (str[i].compare (0, n, str2, 0, n) == 0) |
|
|
577 output(i) = true; |
|
|
578 else |
|
|
579 output(i) = false; |
|
|
580 } |
|
|
581 } |
|
|
582 else |
|
|
583 { |
|
|
584 for (int i = 0; i < r; i++) |
|
|
585 output(i) = false; |
|
|
586 } |
|
|
587 } |
|
|
588 else |
|
|
589 { |
|
|
590 for (int i = 0; i < r; i++) |
|
|
591 output(i) = false; |
|
|
592 } |
|
|
593 |
|
|
594 retval = output; |
|
|
595 } |
|
|
596 else |
|
|
597 { |
|
|
598 // Must match in all dimensions. |
|
|
599 |
|
|
600 boolNDArray output (cell.dimensions); |
|
|
601 |
|
|
602 if (cell.numel () == r) |
|
|
603 { |
|
|
604 for (int i = 0; i < r; i++) |
|
|
605 { |
|
|
606 output(i) = false; |
|
|
607 |
|
|
608 if (cell(i).is_string () && c >= n) |
|
|
609 { |
|
|
610 std::string str2 = cell(i).string_value (); |
|
|
611 |
|
|
612 if (str2.length () >= n |
|
|
613 && str2.compare (0, n, str[i], 0, n) == 0) |
|
|
614 output(i) = true; |
|
|
615 } |
|
|
616 } |
|
|
617 |
|
|
618 retval = output; |
|
|
619 } |
|
|
620 else |
|
|
621 { |
|
|
622 error ("strncmp: the number of rows of the string matrix must match the number of elements in the cell"); |
|
|
623 return retval; |
|
|
624 } |
|
|
625 } |
|
|
626 } |
|
|
627 } |
|
|
628 else if (s1_cell && s2_cell) |
|
|
629 { |
|
|
630 Cell cell1; |
|
|
631 Cell cell2; |
|
|
632 |
|
|
633 int r1 = args(0).numel (); |
|
|
634 int r2; |
|
|
635 |
|
|
636 if (r1 == 1) |
|
|
637 { |
|
|
638 // Make the singleton cell2. |
|
|
639 |
|
|
640 cell1 = args(1).cell_value (); |
|
|
641 cell2 = args(0).cell_value (); |
|
|
642 r1 = cell1.length (); |
|
|
643 r2 = 1; |
|
|
644 } |
|
|
645 else |
|
|
646 { |
|
|
647 cell1 = args(0).cell_value (); |
|
|
648 cell2 = args(1).cell_value (); |
|
|
649 r2 = cell2.length (); |
|
|
650 } |
|
|
651 |
|
|
652 const dim_vector size1 = cell1.dimensions; |
|
|
653 const dim_vector size2 = cell2.dimensions; |
|
|
654 |
|
|
655 boolNDArray output (size1); |
|
|
656 |
|
|
657 if (r2 == 1) |
|
|
658 { |
|
|
659 // Broadcast cell2. |
|
|
660 |
|
|
661 if (! cell2(0).is_string ()) |
|
|
662 { |
|
|
663 for (int i = 0; i < r1; i++) |
|
|
664 output(i) = false; |
|
|
665 } |
|
|
666 else |
|
|
667 { |
|
|
668 const std::string str2 = cell2(0).string_value (); |
|
|
669 |
|
|
670 for (int i = 0; i < r1; i++) |
|
|
671 { |
|
|
672 if (cell1(i).is_string ()) |
|
|
673 { |
|
|
674 const std::string str1 = cell1(i).string_value (); |
|
|
675 |
|
|
676 if (str1.length () >= n && str2.length () >= n |
|
|
677 && str1.compare (0, n, str2, 0, n) == 0) |
|
|
678 output(i) = true; |
|
|
679 else |
|
|
680 output(i) = false; |
|
|
681 } |
|
|
682 else |
|
|
683 output(i) = false; |
|
|
684 } |
|
|
685 } |
|
|
686 } |
|
|
687 else |
|
|
688 { |
|
|
689 if (size1 != size2) |
|
|
690 { |
|
|
691 error ("strncmp: nonconformant cell arrays"); |
|
|
692 return retval; |
|
|
693 } |
|
|
694 |
|
|
695 for (int i = 0; i < r1; i++) |
|
|
696 { |
|
|
697 if (cell1(i).is_string () && cell2(i).is_string ()) |
|
|
698 { |
|
|
699 const std::string str1 = cell1(i).string_value (); |
|
|
700 const std::string str2 = cell2(i).string_value (); |
|
|
701 |
|
|
702 if (str1.length () >= n && str2.length () >= n |
|
|
703 && str1.compare (0, n, str2, 0, n) == 0) |
|
|
704 output(i) = true; |
|
|
705 else |
|
|
706 output(i) = false; |
|
|
707 } |
|
|
708 else |
|
|
709 output(i) = false; |
|
|
710 } |
|
|
711 } |
|
|
712 |
|
|
713 retval = output; |
|
|
714 } |
|
|
715 else |
|
|
716 retval = false; |
|
|
717 } |
|
|
718 else |
|
|
719 print_usage (); |
|
|
720 |
|
|
721 return retval; |
|
|
722 } |
|
|
723 |
|
5690
|
724 DEFUN (list_in_columns, args, , |
|
|
725 "-*- texinfo -*-\n\ |
|
|
726 @deftypefn {Built-in Function} {} list_in_columns (@var{arg}, @var{width})\n\ |
|
|
727 Return a string containing the elements of @var{arg} listed in\n\ |
|
|
728 columns with an overall maximum width of @var{width}. The argument\n\ |
|
|
729 @var{arg} must be a cell array of character strings or a character array.\n\ |
|
|
730 If @var{width} is not specified, the width of the terminal screen is used.\n\ |
|
|
731 @seealso{terminal_size}\n\ |
|
|
732 @end deftypefn") |
|
|
733 { |
|
|
734 octave_value retval; |
|
|
735 |
|
|
736 int nargin = args.length (); |
|
|
737 |
|
|
738 if (nargin == 1 || nargin == 2) |
|
|
739 { |
|
|
740 string_vector s = args(0).all_strings (); |
|
|
741 |
|
|
742 if (! error_state) |
|
|
743 { |
|
5765
|
744 std::ostringstream buf; |
|
5690
|
745 |
|
|
746 if (nargin == 1) |
|
|
747 // Let list_in_columns query terminal width. |
|
|
748 s.list_in_columns (buf); |
|
|
749 else |
|
|
750 { |
|
|
751 int width = args(1).int_value (); |
|
|
752 |
|
|
753 if (! error_state) |
|
|
754 s.list_in_columns (buf, width); |
|
|
755 else |
|
|
756 error ("list_in_columns: expecting width to be an integer"); |
|
|
757 } |
|
|
758 |
|
5765
|
759 retval = buf.str (); |
|
5690
|
760 } |
|
|
761 else |
|
|
762 error ("list_in_columns: expecting cellstr or char array"); |
|
|
763 } |
|
|
764 else |
|
5823
|
765 print_usage (); |
|
5690
|
766 |
|
|
767 return retval; |
|
|
768 } |
|
|
769 |
|
807
|
770 /* |
|
|
771 ;;; Local Variables: *** |
|
|
772 ;;; mode: C++ *** |
|
|
773 ;;; End: *** |
|
|
774 */ |
