annotate src/pt-cmd.cc @ 1372:6d79fce68412

[project @ 1995-09-06 22:22:06 by jwe]
author jwe
date Wed, 06 Sep 1995 22:22:06 +0000
parents 19c10b8657d5
children 3e705c864019
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1 // tree-cmd.cc -*- C++ -*-
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2 /*
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3
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4 Copyright (C) 1992, 1993, 1994, 1995 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 2, or (at your option) any
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11 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, write to the Free
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20 Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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21
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22 */
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23
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24 #if defined (__GNUG__)
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25 #pragma implementation
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26 #endif
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27
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28 #ifdef HAVE_CONFIG_H
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29 #include <config.h>
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30 #endif
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31
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32 #include <iostream.h>
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33
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34 // Nonzero means we're breaking out of a loop or function body.
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35 int breaking = 0;
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36
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37 // Nonzero means we're jumping to the end of a loop.
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38 int continuing = 0;
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39
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40 // Nonzero means we're returning from a function. Global because it
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41 // is also needed in tree-expr.cc.
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42 int returning = 0;
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43
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44 #include "error.h"
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45 #include "gripes.h"
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46 #include "oct-map.h"
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47 #include "symtab.h"
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48 #include "tree-base.h"
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49 #include "tree-cmd.h"
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50 #include "tree-const.h"
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51 #include "tree-expr.h"
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52 #include "tree-misc.h"
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53 #include "unwind-prot.h"
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54 #include "user-prefs.h"
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55 #include "variables.h"
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56
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57 // Decide if it's time to quit a for or while loop.
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58 static inline int
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59 quit_loop_now (void)
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60 {
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61 // Maybe handle `continue N' someday...
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62
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63 if (continuing)
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64 continuing--;
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65
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66 int quit = (returning || breaking || continuing);
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67
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68 if (breaking)
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69 breaking--;
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70
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71 return quit;
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72 }
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73
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74 // But first, some extra functions used by the tree classes.
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75
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76 // We seem to have no use for this now. Maybe it will be needed at
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77 // some future date, so here it is.
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78 #if 0
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79
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80 // Convert a linked list of trees to a vector of pointers to trees.
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81
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82 static tree **
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83 list_to_vector (tree *list, int& len)
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84 {
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85 len = list->length () + 1;
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86
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87 tree **args = new tree * [len];
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88
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89 // args[0] may eventually hold something useful, like the function
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90 // name.
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91
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92 tree *tmp_list = list;
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93 for (int k = 1; k < len; k++)
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94 {
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95 args[k] = tmp_list;
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96 tmp_list = tmp_list->next_elem ();
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97 }
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98 return args;
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99 }
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100 #endif
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101
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102 // Global.
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103
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104 tree_global_command::~tree_global_command (void)
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105 {
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106 delete init_list;
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107 }
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108
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109 void
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110 tree_global_command::eval (void)
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111 {
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112 if (init_list)
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113 init_list->eval ();
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114
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115 if (error_state > 0)
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116 ::error ("evaluating global command near line %d, column %d",
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117 line (), column ());
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118 }
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119
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120 void
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121 tree_global_command::print_code (ostream& os)
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122 {
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123 print_code_indent (os);
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124
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125 os << "global ";
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126
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127 if (init_list)
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128 init_list->print_code (os);
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129 }
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130
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131 // While.
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132
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133 tree_while_command::~tree_while_command (void)
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134 {
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135 delete expr;
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136 delete list;
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137 }
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138
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139 void
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140 tree_while_command::eval (void)
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141 {
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142 if (error_state)
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143 return;
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144
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145 for (;;)
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146 {
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147 int expr_value = 0;
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148 if (! expr)
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149 return;
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150 tree_constant t1 = expr->eval (0);
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151
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152 if (error_state)
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153 {
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154 eval_error ();
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155 return;
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156 }
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157
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158 if (t1.rows () == 0 || t1.columns () == 0)
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159 {
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160 int flag = user_pref.propagate_empty_matrices;
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161 if (flag < 0)
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diff changeset
162 warning ("while: empty matrix used in conditional");
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diff changeset
163 else if (flag == 0)
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164 {
620
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diff changeset
165 ::error ("empty matrix used in while condition near line\
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diff changeset
166 %d, column %d", line (), column ());
578
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diff changeset
167 return;
494
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168 }
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169 t1 = tree_constant (0.0);
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170 }
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171 else if (! t1.is_scalar_type ())
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172 {
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173 tree_constant t2 = t1.all ();
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174 t1 = t2.all ();
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175 }
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176
620
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diff changeset
177 if (t1.is_real_scalar ())
494
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178 expr_value = (int) t1.double_value ();
620
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179 else if (t1.is_complex_scalar ())
494
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180 expr_value = t1.complex_value () != 0.0;
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181 else
620
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diff changeset
182 {
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diff changeset
183 ::error ("invalid type used in while condition near line %d,\
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diff changeset
184 column %d", line (), column ());
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185 return;
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186 }
494
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187
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diff changeset
188 if (expr_value)
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189 {
529
7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe]
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parents: 494
diff changeset
190 if (list)
494
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191 {
578
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diff changeset
192 list->eval (1);
494
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193 if (error_state)
2c4d694b87e9 [project @ 1994-07-06 14:55:23 by jwe]
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194 {
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195 eval_error ();
578
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diff changeset
196 return;
494
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197 }
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198 }
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199
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diff changeset
200 if (quit_loop_now ())
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201 break;
2c4d694b87e9 [project @ 1994-07-06 14:55:23 by jwe]
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202 }
2c4d694b87e9 [project @ 1994-07-06 14:55:23 by jwe]
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203 else
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diff changeset
204 break;
2c4d694b87e9 [project @ 1994-07-06 14:55:23 by jwe]
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parents:
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205 }
2c4d694b87e9 [project @ 1994-07-06 14:55:23 by jwe]
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diff changeset
206 }
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207
2c4d694b87e9 [project @ 1994-07-06 14:55:23 by jwe]
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parents:
diff changeset
208 void
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209 tree_while_command::eval_error (void)
2c4d694b87e9 [project @ 1994-07-06 14:55:23 by jwe]
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diff changeset
210 {
2c4d694b87e9 [project @ 1994-07-06 14:55:23 by jwe]
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parents:
diff changeset
211 if (error_state > 0)
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diff changeset
212 ::error ("evaluating while command near line %d, column %d",
2c4d694b87e9 [project @ 1994-07-06 14:55:23 by jwe]
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diff changeset
213 line (), column ());
2c4d694b87e9 [project @ 1994-07-06 14:55:23 by jwe]
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diff changeset
214 }
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215
581
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parents: 578
diff changeset
216 void
bc813f5eb025 [project @ 1994-08-07 01:02:15 by jwe]
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diff changeset
217 tree_while_command::print_code (ostream& os)
bc813f5eb025 [project @ 1994-08-07 01:02:15 by jwe]
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parents: 578
diff changeset
218 {
bc813f5eb025 [project @ 1994-08-07 01:02:15 by jwe]
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parents: 578
diff changeset
219 print_code_indent (os);
bc813f5eb025 [project @ 1994-08-07 01:02:15 by jwe]
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parents: 578
diff changeset
220
bc813f5eb025 [project @ 1994-08-07 01:02:15 by jwe]
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parents: 578
diff changeset
221 os << "while ";
bc813f5eb025 [project @ 1994-08-07 01:02:15 by jwe]
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parents: 578
diff changeset
222
bc813f5eb025 [project @ 1994-08-07 01:02:15 by jwe]
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parents: 578
diff changeset
223 if (expr)
bc813f5eb025 [project @ 1994-08-07 01:02:15 by jwe]
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parents: 578
diff changeset
224 expr->print_code (os);
bc813f5eb025 [project @ 1994-08-07 01:02:15 by jwe]
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parents: 578
diff changeset
225
bc813f5eb025 [project @ 1994-08-07 01:02:15 by jwe]
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parents: 578
diff changeset
226 print_code_new_line (os);
bc813f5eb025 [project @ 1994-08-07 01:02:15 by jwe]
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parents: 578
diff changeset
227
bc813f5eb025 [project @ 1994-08-07 01:02:15 by jwe]
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parents: 578
diff changeset
228 if (list)
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parents: 578
diff changeset
229 {
bc813f5eb025 [project @ 1994-08-07 01:02:15 by jwe]
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parents: 578
diff changeset
230 increment_indent_level ();
bc813f5eb025 [project @ 1994-08-07 01:02:15 by jwe]
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parents: 578
diff changeset
231 list->print_code (os);
bc813f5eb025 [project @ 1994-08-07 01:02:15 by jwe]
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parents: 578
diff changeset
232 decrement_indent_level ();
bc813f5eb025 [project @ 1994-08-07 01:02:15 by jwe]
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parents: 578
diff changeset
233 }
bc813f5eb025 [project @ 1994-08-07 01:02:15 by jwe]
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parents: 578
diff changeset
234
bc813f5eb025 [project @ 1994-08-07 01:02:15 by jwe]
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parents: 578
diff changeset
235 print_code_indent (os);
bc813f5eb025 [project @ 1994-08-07 01:02:15 by jwe]
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parents: 578
diff changeset
236
bc813f5eb025 [project @ 1994-08-07 01:02:15 by jwe]
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parents: 578
diff changeset
237 os << "endwhile";
bc813f5eb025 [project @ 1994-08-07 01:02:15 by jwe]
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diff changeset
238 }
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diff changeset
239
578
d169be9237fb [project @ 1994-08-03 20:06:54 by jwe]
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parents: 529
diff changeset
240 // For.
494
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diff changeset
241
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diff changeset
242 tree_for_command::~tree_for_command (void)
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diff changeset
243 {
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parents:
diff changeset
244 delete id;
1228
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parents: 1192
diff changeset
245 delete id_list;
494
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parents:
diff changeset
246 delete expr;
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parents:
diff changeset
247 delete list;
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diff changeset
248 }
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diff changeset
249
1168
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diff changeset
250 inline void
1228
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parents: 1192
diff changeset
251 tree_for_command::do_for_loop_once (tree_return_list *lst,
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parents: 1192
diff changeset
252 const Octave_object& rhs, int& quit)
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parents: 1192
diff changeset
253 {
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parents: 1192
diff changeset
254 quit = 0;
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parents: 1192
diff changeset
255
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parents: 1192
diff changeset
256 tree_oct_obj *tmp = new tree_oct_obj (rhs);
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parents: 1192
diff changeset
257 tree_multi_assignment_expression tmp_ass (lst, tmp, 1);
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parents: 1192
diff changeset
258 tmp_ass.eval (0);
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parents: 1192
diff changeset
259
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parents: 1192
diff changeset
260 if (error_state)
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parents: 1192
diff changeset
261 {
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parents: 1192
diff changeset
262 eval_error ();
38b876e46ff6 [project @ 1995-04-10 00:56:17 by jwe]
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parents: 1192
diff changeset
263 return;
38b876e46ff6 [project @ 1995-04-10 00:56:17 by jwe]
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parents: 1192
diff changeset
264 }
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parents: 1192
diff changeset
265
38b876e46ff6 [project @ 1995-04-10 00:56:17 by jwe]
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parents: 1192
diff changeset
266 if (list)
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parents: 1192
diff changeset
267 {
38b876e46ff6 [project @ 1995-04-10 00:56:17 by jwe]
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parents: 1192
diff changeset
268 list->eval (1);
38b876e46ff6 [project @ 1995-04-10 00:56:17 by jwe]
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parents: 1192
diff changeset
269 if (error_state)
38b876e46ff6 [project @ 1995-04-10 00:56:17 by jwe]
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parents: 1192
diff changeset
270 {
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parents: 1192
diff changeset
271 eval_error ();
38b876e46ff6 [project @ 1995-04-10 00:56:17 by jwe]
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parents: 1192
diff changeset
272 quit = 1;
38b876e46ff6 [project @ 1995-04-10 00:56:17 by jwe]
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parents: 1192
diff changeset
273 return;
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parents: 1192
diff changeset
274 }
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parents: 1192
diff changeset
275 }
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parents: 1192
diff changeset
276
38b876e46ff6 [project @ 1995-04-10 00:56:17 by jwe]
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parents: 1192
diff changeset
277 quit = quit_loop_now ();
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parents: 1192
diff changeset
278 }
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parents: 1192
diff changeset
279
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parents: 1192
diff changeset
280 inline void
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parents: 1192
diff changeset
281 tree_for_command::do_for_loop_once (tree_index_expression *idx_expr,
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parents: 1192
diff changeset
282 const tree_constant& rhs, int& quit)
1168
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parents: 1059
diff changeset
283 {
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parents: 1059
diff changeset
284 quit = 0;
e2036dce97ea [project @ 1995-03-10 18:49:55 by jwe]
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parents: 1059
diff changeset
285
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diff changeset
286 tree_constant *tmp = new tree_constant (rhs);
1228
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diff changeset
287 tree_simple_assignment_expression tmp_ass (idx_expr, tmp, 1);
1168
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parents: 1059
diff changeset
288 tmp_ass.eval (0);
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parents: 1059
diff changeset
289
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parents: 1059
diff changeset
290 if (error_state)
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parents: 1059
diff changeset
291 {
e2036dce97ea [project @ 1995-03-10 18:49:55 by jwe]
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parents: 1059
diff changeset
292 eval_error ();
e2036dce97ea [project @ 1995-03-10 18:49:55 by jwe]
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parents: 1059
diff changeset
293 return;
e2036dce97ea [project @ 1995-03-10 18:49:55 by jwe]
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parents: 1059
diff changeset
294 }
e2036dce97ea [project @ 1995-03-10 18:49:55 by jwe]
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parents: 1059
diff changeset
295
e2036dce97ea [project @ 1995-03-10 18:49:55 by jwe]
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parents: 1059
diff changeset
296 if (list)
e2036dce97ea [project @ 1995-03-10 18:49:55 by jwe]
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parents: 1059
diff changeset
297 {
e2036dce97ea [project @ 1995-03-10 18:49:55 by jwe]
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parents: 1059
diff changeset
298 list->eval (1);
e2036dce97ea [project @ 1995-03-10 18:49:55 by jwe]
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parents: 1059
diff changeset
299 if (error_state)
e2036dce97ea [project @ 1995-03-10 18:49:55 by jwe]
jwe
parents: 1059
diff changeset
300 {
e2036dce97ea [project @ 1995-03-10 18:49:55 by jwe]
jwe
parents: 1059
diff changeset
301 eval_error ();
e2036dce97ea [project @ 1995-03-10 18:49:55 by jwe]
jwe
parents: 1059
diff changeset
302 quit = 1;
e2036dce97ea [project @ 1995-03-10 18:49:55 by jwe]
jwe
parents: 1059
diff changeset
303 return;
e2036dce97ea [project @ 1995-03-10 18:49:55 by jwe]
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parents: 1059
diff changeset
304 }
e2036dce97ea [project @ 1995-03-10 18:49:55 by jwe]
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parents: 1059
diff changeset
305 }
e2036dce97ea [project @ 1995-03-10 18:49:55 by jwe]
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parents: 1059
diff changeset
306
e2036dce97ea [project @ 1995-03-10 18:49:55 by jwe]
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parents: 1059
diff changeset
307 quit = quit_loop_now ();
e2036dce97ea [project @ 1995-03-10 18:49:55 by jwe]
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parents: 1059
diff changeset
308 }
e2036dce97ea [project @ 1995-03-10 18:49:55 by jwe]
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parents: 1059
diff changeset
309
e2036dce97ea [project @ 1995-03-10 18:49:55 by jwe]
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parents: 1059
diff changeset
310 inline void
e2036dce97ea [project @ 1995-03-10 18:49:55 by jwe]
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parents: 1059
diff changeset
311 tree_for_command::do_for_loop_once (tree_identifier *ident,
e2036dce97ea [project @ 1995-03-10 18:49:55 by jwe]
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parents: 1059
diff changeset
312 tree_constant& rhs, int& quit)
e2036dce97ea [project @ 1995-03-10 18:49:55 by jwe]
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parents: 1059
diff changeset
313 {
e2036dce97ea [project @ 1995-03-10 18:49:55 by jwe]
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parents: 1059
diff changeset
314 quit = 0;
e2036dce97ea [project @ 1995-03-10 18:49:55 by jwe]
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parents: 1059
diff changeset
315
e2036dce97ea [project @ 1995-03-10 18:49:55 by jwe]
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parents: 1059
diff changeset
316 ident->assign (rhs);
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parents: 1059
diff changeset
317
e2036dce97ea [project @ 1995-03-10 18:49:55 by jwe]
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parents: 1059
diff changeset
318 if (error_state)
e2036dce97ea [project @ 1995-03-10 18:49:55 by jwe]
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parents: 1059
diff changeset
319 {
e2036dce97ea [project @ 1995-03-10 18:49:55 by jwe]
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parents: 1059
diff changeset
320 eval_error ();
e2036dce97ea [project @ 1995-03-10 18:49:55 by jwe]
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parents: 1059
diff changeset
321 return;
e2036dce97ea [project @ 1995-03-10 18:49:55 by jwe]
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parents: 1059
diff changeset
322 }
e2036dce97ea [project @ 1995-03-10 18:49:55 by jwe]
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parents: 1059
diff changeset
323
e2036dce97ea [project @ 1995-03-10 18:49:55 by jwe]
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parents: 1059
diff changeset
324 if (list)
e2036dce97ea [project @ 1995-03-10 18:49:55 by jwe]
jwe
parents: 1059
diff changeset
325 {
e2036dce97ea [project @ 1995-03-10 18:49:55 by jwe]
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parents: 1059
diff changeset
326 list->eval (1);
e2036dce97ea [project @ 1995-03-10 18:49:55 by jwe]
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parents: 1059
diff changeset
327 if (error_state)
e2036dce97ea [project @ 1995-03-10 18:49:55 by jwe]
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parents: 1059
diff changeset
328 {
e2036dce97ea [project @ 1995-03-10 18:49:55 by jwe]
jwe
parents: 1059
diff changeset
329 eval_error ();
e2036dce97ea [project @ 1995-03-10 18:49:55 by jwe]
jwe
parents: 1059
diff changeset
330 quit = 1;
e2036dce97ea [project @ 1995-03-10 18:49:55 by jwe]
jwe
parents: 1059
diff changeset
331 return;
e2036dce97ea [project @ 1995-03-10 18:49:55 by jwe]
jwe
parents: 1059
diff changeset
332 }
e2036dce97ea [project @ 1995-03-10 18:49:55 by jwe]
jwe
parents: 1059
diff changeset
333 }
e2036dce97ea [project @ 1995-03-10 18:49:55 by jwe]
jwe
parents: 1059
diff changeset
334
e2036dce97ea [project @ 1995-03-10 18:49:55 by jwe]
jwe
parents: 1059
diff changeset
335 quit = quit_loop_now ();
e2036dce97ea [project @ 1995-03-10 18:49:55 by jwe]
jwe
parents: 1059
diff changeset
336 }
e2036dce97ea [project @ 1995-03-10 18:49:55 by jwe]
jwe
parents: 1059
diff changeset
337
e2036dce97ea [project @ 1995-03-10 18:49:55 by jwe]
jwe
parents: 1059
diff changeset
338 #define DO_LOOP(val) \
e2036dce97ea [project @ 1995-03-10 18:49:55 by jwe]
jwe
parents: 1059
diff changeset
339 do \
e2036dce97ea [project @ 1995-03-10 18:49:55 by jwe]
jwe
parents: 1059
diff changeset
340 { \
e2036dce97ea [project @ 1995-03-10 18:49:55 by jwe]
jwe
parents: 1059
diff changeset
341 if (ident) \
e2036dce97ea [project @ 1995-03-10 18:49:55 by jwe]
jwe
parents: 1059
diff changeset
342 for (int i = 0; i < steps; i++) \
e2036dce97ea [project @ 1995-03-10 18:49:55 by jwe]
jwe
parents: 1059
diff changeset
343 { \
e2036dce97ea [project @ 1995-03-10 18:49:55 by jwe]
jwe
parents: 1059
diff changeset
344 tree_constant rhs (val); \
e2036dce97ea [project @ 1995-03-10 18:49:55 by jwe]
jwe
parents: 1059
diff changeset
345 int quit = 0; \
e2036dce97ea [project @ 1995-03-10 18:49:55 by jwe]
jwe
parents: 1059
diff changeset
346 do_for_loop_once (ident, rhs, quit); \
e2036dce97ea [project @ 1995-03-10 18:49:55 by jwe]
jwe
parents: 1059
diff changeset
347 if (quit) \
e2036dce97ea [project @ 1995-03-10 18:49:55 by jwe]
jwe
parents: 1059
diff changeset
348 break; \
e2036dce97ea [project @ 1995-03-10 18:49:55 by jwe]
jwe
parents: 1059
diff changeset
349 } \
1228
38b876e46ff6 [project @ 1995-04-10 00:56:17 by jwe]
jwe
parents: 1192
diff changeset
350 else if (id_list) \
38b876e46ff6 [project @ 1995-04-10 00:56:17 by jwe]
jwe
parents: 1192
diff changeset
351 for (int i = 0; i < steps; i++) \
38b876e46ff6 [project @ 1995-04-10 00:56:17 by jwe]
jwe
parents: 1192
diff changeset
352 { \
38b876e46ff6 [project @ 1995-04-10 00:56:17 by jwe]
jwe
parents: 1192
diff changeset
353 Octave_object rhs (val); \
38b876e46ff6 [project @ 1995-04-10 00:56:17 by jwe]
jwe
parents: 1192
diff changeset
354 int quit = 0; \
38b876e46ff6 [project @ 1995-04-10 00:56:17 by jwe]
jwe
parents: 1192
diff changeset
355 do_for_loop_once (id_list, rhs, quit); \
38b876e46ff6 [project @ 1995-04-10 00:56:17 by jwe]
jwe
parents: 1192
diff changeset
356 if (quit) \
38b876e46ff6 [project @ 1995-04-10 00:56:17 by jwe]
jwe
parents: 1192
diff changeset
357 break; \
38b876e46ff6 [project @ 1995-04-10 00:56:17 by jwe]
jwe
parents: 1192
diff changeset
358 } \
1168
e2036dce97ea [project @ 1995-03-10 18:49:55 by jwe]
jwe
parents: 1059
diff changeset
359 else \
e2036dce97ea [project @ 1995-03-10 18:49:55 by jwe]
jwe
parents: 1059
diff changeset
360 for (int i = 0; i < steps; i++) \
e2036dce97ea [project @ 1995-03-10 18:49:55 by jwe]
jwe
parents: 1059
diff changeset
361 { \
e2036dce97ea [project @ 1995-03-10 18:49:55 by jwe]
jwe
parents: 1059
diff changeset
362 tree_constant rhs (val); \
e2036dce97ea [project @ 1995-03-10 18:49:55 by jwe]
jwe
parents: 1059
diff changeset
363 int quit = 0; \
1228
38b876e46ff6 [project @ 1995-04-10 00:56:17 by jwe]
jwe
parents: 1192
diff changeset
364 do_for_loop_once (tmp_id, rhs, quit); \
1168
e2036dce97ea [project @ 1995-03-10 18:49:55 by jwe]
jwe
parents: 1059
diff changeset
365 if (quit) \
e2036dce97ea [project @ 1995-03-10 18:49:55 by jwe]
jwe
parents: 1059
diff changeset
366 break; \
e2036dce97ea [project @ 1995-03-10 18:49:55 by jwe]
jwe
parents: 1059
diff changeset
367 } \
e2036dce97ea [project @ 1995-03-10 18:49:55 by jwe]
jwe
parents: 1059
diff changeset
368 } \
e2036dce97ea [project @ 1995-03-10 18:49:55 by jwe]
jwe
parents: 1059
diff changeset
369 while (0)
e2036dce97ea [project @ 1995-03-10 18:49:55 by jwe]
jwe
parents: 1059
diff changeset
370
578
d169be9237fb [project @ 1994-08-03 20:06:54 by jwe]
jwe
parents: 529
diff changeset
371 void
d169be9237fb [project @ 1994-08-03 20:06:54 by jwe]
jwe
parents: 529
diff changeset
372 tree_for_command::eval (void)
494
2c4d694b87e9 [project @ 1994-07-06 14:55:23 by jwe]
jwe
parents:
diff changeset
373 {
529
7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe]
jwe
parents: 494
diff changeset
374 if (error_state || ! expr)
578
d169be9237fb [project @ 1994-08-03 20:06:54 by jwe]
jwe
parents: 529
diff changeset
375 return;
494
2c4d694b87e9 [project @ 1994-07-06 14:55:23 by jwe]
jwe
parents:
diff changeset
376
2c4d694b87e9 [project @ 1994-07-06 14:55:23 by jwe]
jwe
parents:
diff changeset
377 tree_constant tmp_expr = expr->eval (0);
2c4d694b87e9 [project @ 1994-07-06 14:55:23 by jwe]
jwe
parents:
diff changeset
378
2c4d694b87e9 [project @ 1994-07-06 14:55:23 by jwe]
jwe
parents:
diff changeset
379 if (error_state || tmp_expr.is_undefined ())
2c4d694b87e9 [project @ 1994-07-06 14:55:23 by jwe]
jwe
parents:
diff changeset
380 {
2c4d694b87e9 [project @ 1994-07-06 14:55:23 by jwe]
jwe
parents:
diff changeset
381 eval_error ();
578
d169be9237fb [project @ 1994-08-03 20:06:54 by jwe]
jwe
parents: 529
diff changeset
382 return;
494
2c4d694b87e9 [project @ 1994-07-06 14:55:23 by jwe]
jwe
parents:
diff changeset
383 }
2c4d694b87e9 [project @ 1994-07-06 14:55:23 by jwe]
jwe
parents:
diff changeset
384
1228
38b876e46ff6 [project @ 1995-04-10 00:56:17 by jwe]
jwe
parents: 1192
diff changeset
385 tree_index_expression *tmp_id = id;
38b876e46ff6 [project @ 1995-04-10 00:56:17 by jwe]
jwe
parents: 1192
diff changeset
386 if (id_list && id_list->length () == 1)
38b876e46ff6 [project @ 1995-04-10 00:56:17 by jwe]
jwe
parents: 1192
diff changeset
387 tmp_id = id_list->front ();
38b876e46ff6 [project @ 1995-04-10 00:56:17 by jwe]
jwe
parents: 1192
diff changeset
388
1168
e2036dce97ea [project @ 1995-03-10 18:49:55 by jwe]
jwe
parents: 1059
diff changeset
389 tree_identifier *ident = 0;
1228
38b876e46ff6 [project @ 1995-04-10 00:56:17 by jwe]
jwe
parents: 1192
diff changeset
390 if (tmp_id && ! tmp_id->arg_list ())
1168
e2036dce97ea [project @ 1995-03-10 18:49:55 by jwe]
jwe
parents: 1059
diff changeset
391 {
1228
38b876e46ff6 [project @ 1995-04-10 00:56:17 by jwe]
jwe
parents: 1192
diff changeset
392 tree_indirect_ref *idr = tmp_id->ident ();
1168
e2036dce97ea [project @ 1995-03-10 18:49:55 by jwe]
jwe
parents: 1059
diff changeset
393 if (idr->is_identifier_only ())
e2036dce97ea [project @ 1995-03-10 18:49:55 by jwe]
jwe
parents: 1059
diff changeset
394 ident = idr->ident ();
e2036dce97ea [project @ 1995-03-10 18:49:55 by jwe]
jwe
parents: 1059
diff changeset
395 }
e2036dce97ea [project @ 1995-03-10 18:49:55 by jwe]
jwe
parents: 1059
diff changeset
396
1234
9204518e940f [project @ 1995-04-10 14:31:21 by jwe]
jwe
parents: 1228
diff changeset
397 if (id_list && ! ident && ! tmp_expr.is_map ())
1228
38b876e46ff6 [project @ 1995-04-10 00:56:17 by jwe]
jwe
parents: 1192
diff changeset
398 {
38b876e46ff6 [project @ 1995-04-10 00:56:17 by jwe]
jwe
parents: 1192
diff changeset
399 error ("in statement `for [X, Y] = VAL', VAL must be a structure");
38b876e46ff6 [project @ 1995-04-10 00:56:17 by jwe]
jwe
parents: 1192
diff changeset
400 return;
38b876e46ff6 [project @ 1995-04-10 00:56:17 by jwe]
jwe
parents: 1192
diff changeset
401 }
38b876e46ff6 [project @ 1995-04-10 00:56:17 by jwe]
jwe
parents: 1192
diff changeset
402
620
8e4e7e5f307e [project @ 1994-08-16 04:36:32 by jwe]
jwe
parents: 584
diff changeset
403 if (tmp_expr.is_scalar_type ())
8e4e7e5f307e [project @ 1994-08-16 04:36:32 by jwe]
jwe
parents: 584
diff changeset
404 {
8e4e7e5f307e [project @ 1994-08-16 04:36:32 by jwe]
jwe
parents: 584
diff changeset
405 int quit = 0;
1168
e2036dce97ea [project @ 1995-03-10 18:49:55 by jwe]
jwe
parents: 1059
diff changeset
406 if (ident)
e2036dce97ea [project @ 1995-03-10 18:49:55 by jwe]
jwe
parents: 1059
diff changeset
407 do_for_loop_once (ident, tmp_expr, quit);
1228
38b876e46ff6 [project @ 1995-04-10 00:56:17 by jwe]
jwe
parents: 1192
diff changeset
408 else if (id_list)
38b876e46ff6 [project @ 1995-04-10 00:56:17 by jwe]
jwe
parents: 1192
diff changeset
409 {
38b876e46ff6 [project @ 1995-04-10 00:56:17 by jwe]
jwe
parents: 1192
diff changeset
410 Octave_object rhs (tmp_expr);
38b876e46ff6 [project @ 1995-04-10 00:56:17 by jwe]
jwe
parents: 1192
diff changeset
411 do_for_loop_once (id_list, rhs, quit);
38b876e46ff6 [project @ 1995-04-10 00:56:17 by jwe]
jwe
parents: 1192
diff changeset
412 }
1168
e2036dce97ea [project @ 1995-03-10 18:49:55 by jwe]
jwe
parents: 1059
diff changeset
413 else
1228
38b876e46ff6 [project @ 1995-04-10 00:56:17 by jwe]
jwe
parents: 1192
diff changeset
414 do_for_loop_once (tmp_id, tmp_expr, quit);
620
8e4e7e5f307e [project @ 1994-08-16 04:36:32 by jwe]
jwe
parents: 584
diff changeset
415 }
8e4e7e5f307e [project @ 1994-08-16 04:36:32 by jwe]
jwe
parents: 584
diff changeset
416 else if (tmp_expr.is_matrix_type ())
494
2c4d694b87e9 [project @ 1994-07-06 14:55:23 by jwe]
jwe
parents:
diff changeset
417 {
620
8e4e7e5f307e [project @ 1994-08-16 04:36:32 by jwe]
jwe
parents: 584
diff changeset
418 Matrix m_tmp;
8e4e7e5f307e [project @ 1994-08-16 04:36:32 by jwe]
jwe
parents: 584
diff changeset
419 ComplexMatrix cm_tmp;
8e4e7e5f307e [project @ 1994-08-16 04:36:32 by jwe]
jwe
parents: 584
diff changeset
420 int nr;
8e4e7e5f307e [project @ 1994-08-16 04:36:32 by jwe]
jwe
parents: 584
diff changeset
421 int steps;
8e4e7e5f307e [project @ 1994-08-16 04:36:32 by jwe]
jwe
parents: 584
diff changeset
422 if (tmp_expr.is_real_matrix ())
8e4e7e5f307e [project @ 1994-08-16 04:36:32 by jwe]
jwe
parents: 584
diff changeset
423 {
8e4e7e5f307e [project @ 1994-08-16 04:36:32 by jwe]
jwe
parents: 584
diff changeset
424 m_tmp = tmp_expr.matrix_value ();
8e4e7e5f307e [project @ 1994-08-16 04:36:32 by jwe]
jwe
parents: 584
diff changeset
425 nr = m_tmp.rows ();
8e4e7e5f307e [project @ 1994-08-16 04:36:32 by jwe]
jwe
parents: 584
diff changeset
426 steps = m_tmp.columns ();
8e4e7e5f307e [project @ 1994-08-16 04:36:32 by jwe]
jwe
parents: 584
diff changeset
427 }
8e4e7e5f307e [project @ 1994-08-16 04:36:32 by jwe]
jwe
parents: 584
diff changeset
428 else
8e4e7e5f307e [project @ 1994-08-16 04:36:32 by jwe]
jwe
parents: 584
diff changeset
429 {
8e4e7e5f307e [project @ 1994-08-16 04:36:32 by jwe]
jwe
parents: 584
diff changeset
430 cm_tmp = tmp_expr.complex_matrix_value ();
8e4e7e5f307e [project @ 1994-08-16 04:36:32 by jwe]
jwe
parents: 584
diff changeset
431 nr = cm_tmp.rows ();
8e4e7e5f307e [project @ 1994-08-16 04:36:32 by jwe]
jwe
parents: 584
diff changeset
432 steps = cm_tmp.columns ();
8e4e7e5f307e [project @ 1994-08-16 04:36:32 by jwe]
jwe
parents: 584
diff changeset
433 }
494
2c4d694b87e9 [project @ 1994-07-06 14:55:23 by jwe]
jwe
parents:
diff changeset
434
1168
e2036dce97ea [project @ 1995-03-10 18:49:55 by jwe]
jwe
parents: 1059
diff changeset
435 if (tmp_expr.is_real_matrix ())
620
8e4e7e5f307e [project @ 1994-08-16 04:36:32 by jwe]
jwe
parents: 584
diff changeset
436 {
8e4e7e5f307e [project @ 1994-08-16 04:36:32 by jwe]
jwe
parents: 584
diff changeset
437 if (nr == 1)
1168
e2036dce97ea [project @ 1995-03-10 18:49:55 by jwe]
jwe
parents: 1059
diff changeset
438 DO_LOOP(m_tmp (0, i));
620
8e4e7e5f307e [project @ 1994-08-16 04:36:32 by jwe]
jwe
parents: 584
diff changeset
439 else
1168
e2036dce97ea [project @ 1995-03-10 18:49:55 by jwe]
jwe
parents: 1059
diff changeset
440 DO_LOOP(m_tmp.extract (0, i, nr-1, i));
e2036dce97ea [project @ 1995-03-10 18:49:55 by jwe]
jwe
parents: 1059
diff changeset
441 }
e2036dce97ea [project @ 1995-03-10 18:49:55 by jwe]
jwe
parents: 1059
diff changeset
442 else
e2036dce97ea [project @ 1995-03-10 18:49:55 by jwe]
jwe
parents: 1059
diff changeset
443 {
e2036dce97ea [project @ 1995-03-10 18:49:55 by jwe]
jwe
parents: 1059
diff changeset
444 if (nr == 1)
e2036dce97ea [project @ 1995-03-10 18:49:55 by jwe]
jwe
parents: 1059
diff changeset
445 DO_LOOP(cm_tmp (0, i));
e2036dce97ea [project @ 1995-03-10 18:49:55 by jwe]
jwe
parents: 1059
diff changeset
446 else
e2036dce97ea [project @ 1995-03-10 18:49:55 by jwe]
jwe
parents: 1059
diff changeset
447 DO_LOOP(cm_tmp.extract (0, i, nr-1, i));
620
8e4e7e5f307e [project @ 1994-08-16 04:36:32 by jwe]
jwe
parents: 584
diff changeset
448 }
8e4e7e5f307e [project @ 1994-08-16 04:36:32 by jwe]
jwe
parents: 584
diff changeset
449 }
8e4e7e5f307e [project @ 1994-08-16 04:36:32 by jwe]
jwe
parents: 584
diff changeset
450 else if (tmp_expr.is_string ())
8e4e7e5f307e [project @ 1994-08-16 04:36:32 by jwe]
jwe
parents: 584
diff changeset
451 {
494
2c4d694b87e9 [project @ 1994-07-06 14:55:23 by jwe]
jwe
parents:
diff changeset
452 gripe_string_invalid ();
620
8e4e7e5f307e [project @ 1994-08-16 04:36:32 by jwe]
jwe
parents: 584
diff changeset
453 }
8e4e7e5f307e [project @ 1994-08-16 04:36:32 by jwe]
jwe
parents: 584
diff changeset
454 else if (tmp_expr.is_range ())
8e4e7e5f307e [project @ 1994-08-16 04:36:32 by jwe]
jwe
parents: 584
diff changeset
455 {
8e4e7e5f307e [project @ 1994-08-16 04:36:32 by jwe]
jwe
parents: 584
diff changeset
456 Range rng = tmp_expr.range_value ();
494
2c4d694b87e9 [project @ 1994-07-06 14:55:23 by jwe]
jwe
parents:
diff changeset
457
620
8e4e7e5f307e [project @ 1994-08-16 04:36:32 by jwe]
jwe
parents: 584
diff changeset
458 int steps = rng.nelem ();
8e4e7e5f307e [project @ 1994-08-16 04:36:32 by jwe]
jwe
parents: 584
diff changeset
459 double b = rng.base ();
8e4e7e5f307e [project @ 1994-08-16 04:36:32 by jwe]
jwe
parents: 584
diff changeset
460 double increment = rng.inc ();
494
2c4d694b87e9 [project @ 1994-07-06 14:55:23 by jwe]
jwe
parents:
diff changeset
461
1168
e2036dce97ea [project @ 1995-03-10 18:49:55 by jwe]
jwe
parents: 1059
diff changeset
462 if (ident)
620
8e4e7e5f307e [project @ 1994-08-16 04:36:32 by jwe]
jwe
parents: 584
diff changeset
463 {
1168
e2036dce97ea [project @ 1995-03-10 18:49:55 by jwe]
jwe
parents: 1059
diff changeset
464 for (int i = 0; i < steps; i++)
e2036dce97ea [project @ 1995-03-10 18:49:55 by jwe]
jwe
parents: 1059
diff changeset
465 {
e2036dce97ea [project @ 1995-03-10 18:49:55 by jwe]
jwe
parents: 1059
diff changeset
466 double tmp_val = b + i * increment;
e2036dce97ea [project @ 1995-03-10 18:49:55 by jwe]
jwe
parents: 1059
diff changeset
467
e2036dce97ea [project @ 1995-03-10 18:49:55 by jwe]
jwe
parents: 1059
diff changeset
468 tree_constant rhs (tmp_val);
e2036dce97ea [project @ 1995-03-10 18:49:55 by jwe]
jwe
parents: 1059
diff changeset
469
e2036dce97ea [project @ 1995-03-10 18:49:55 by jwe]
jwe
parents: 1059
diff changeset
470 int quit = 0;
e2036dce97ea [project @ 1995-03-10 18:49:55 by jwe]
jwe
parents: 1059
diff changeset
471 do_for_loop_once (ident, rhs, quit);
494
2c4d694b87e9 [project @ 1994-07-06 14:55:23 by jwe]
jwe
parents:
diff changeset
472
1168
e2036dce97ea [project @ 1995-03-10 18:49:55 by jwe]
jwe
parents: 1059
diff changeset
473 if (quit)
e2036dce97ea [project @ 1995-03-10 18:49:55 by jwe]
jwe
parents: 1059
diff changeset
474 break;
e2036dce97ea [project @ 1995-03-10 18:49:55 by jwe]
jwe
parents: 1059
diff changeset
475 }
e2036dce97ea [project @ 1995-03-10 18:49:55 by jwe]
jwe
parents: 1059
diff changeset
476 }
1228
38b876e46ff6 [project @ 1995-04-10 00:56:17 by jwe]
jwe
parents: 1192
diff changeset
477 else if (id_list)
38b876e46ff6 [project @ 1995-04-10 00:56:17 by jwe]
jwe
parents: 1192
diff changeset
478 {
38b876e46ff6 [project @ 1995-04-10 00:56:17 by jwe]
jwe
parents: 1192
diff changeset
479 for (int i = 0; i < steps; i++)
38b876e46ff6 [project @ 1995-04-10 00:56:17 by jwe]
jwe
parents: 1192
diff changeset
480 {
38b876e46ff6 [project @ 1995-04-10 00:56:17 by jwe]
jwe
parents: 1192
diff changeset
481 double tmp_val = b + i * increment;
38b876e46ff6 [project @ 1995-04-10 00:56:17 by jwe]
jwe
parents: 1192
diff changeset
482
38b876e46ff6 [project @ 1995-04-10 00:56:17 by jwe]
jwe
parents: 1192
diff changeset
483 Octave_object rhs (tmp_val);
38b876e46ff6 [project @ 1995-04-10 00:56:17 by jwe]
jwe
parents: 1192
diff changeset
484
38b876e46ff6 [project @ 1995-04-10 00:56:17 by jwe]
jwe
parents: 1192
diff changeset
485 int quit = 0;
38b876e46ff6 [project @ 1995-04-10 00:56:17 by jwe]
jwe
parents: 1192
diff changeset
486 do_for_loop_once (id_list, rhs, quit);
38b876e46ff6 [project @ 1995-04-10 00:56:17 by jwe]
jwe
parents: 1192
diff changeset
487
38b876e46ff6 [project @ 1995-04-10 00:56:17 by jwe]
jwe
parents: 1192
diff changeset
488 if (quit)
38b876e46ff6 [project @ 1995-04-10 00:56:17 by jwe]
jwe
parents: 1192
diff changeset
489 break;
38b876e46ff6 [project @ 1995-04-10 00:56:17 by jwe]
jwe
parents: 1192
diff changeset
490 }
38b876e46ff6 [project @ 1995-04-10 00:56:17 by jwe]
jwe
parents: 1192
diff changeset
491 }
1168
e2036dce97ea [project @ 1995-03-10 18:49:55 by jwe]
jwe
parents: 1059
diff changeset
492 else
e2036dce97ea [project @ 1995-03-10 18:49:55 by jwe]
jwe
parents: 1059
diff changeset
493 {
e2036dce97ea [project @ 1995-03-10 18:49:55 by jwe]
jwe
parents: 1059
diff changeset
494 for (int i = 0; i < steps; i++)
e2036dce97ea [project @ 1995-03-10 18:49:55 by jwe]
jwe
parents: 1059
diff changeset
495 {
e2036dce97ea [project @ 1995-03-10 18:49:55 by jwe]
jwe
parents: 1059
diff changeset
496 double tmp_val = b + i * increment;
494
2c4d694b87e9 [project @ 1994-07-06 14:55:23 by jwe]
jwe
parents:
diff changeset
497
1168
e2036dce97ea [project @ 1995-03-10 18:49:55 by jwe]
jwe
parents: 1059
diff changeset
498 tree_constant rhs (tmp_val);
e2036dce97ea [project @ 1995-03-10 18:49:55 by jwe]
jwe
parents: 1059
diff changeset
499
e2036dce97ea [project @ 1995-03-10 18:49:55 by jwe]
jwe
parents: 1059
diff changeset
500 int quit = 0;
1228
38b876e46ff6 [project @ 1995-04-10 00:56:17 by jwe]
jwe
parents: 1192
diff changeset
501 do_for_loop_once (tmp_id, rhs, quit);
38b876e46ff6 [project @ 1995-04-10 00:56:17 by jwe]
jwe
parents: 1192
diff changeset
502
38b876e46ff6 [project @ 1995-04-10 00:56:17 by jwe]
jwe
parents: 1192
diff changeset
503 if (quit)
38b876e46ff6 [project @ 1995-04-10 00:56:17 by jwe]
jwe
parents: 1192
diff changeset
504 break;
38b876e46ff6 [project @ 1995-04-10 00:56:17 by jwe]
jwe
parents: 1192
diff changeset
505 }
38b876e46ff6 [project @ 1995-04-10 00:56:17 by jwe]
jwe
parents: 1192
diff changeset
506 }
38b876e46ff6 [project @ 1995-04-10 00:56:17 by jwe]
jwe
parents: 1192
diff changeset
507 }
38b876e46ff6 [project @ 1995-04-10 00:56:17 by jwe]
jwe
parents: 1192
diff changeset
508 else if (tmp_expr.is_map ())
38b876e46ff6 [project @ 1995-04-10 00:56:17 by jwe]
jwe
parents: 1192
diff changeset
509 {
38b876e46ff6 [project @ 1995-04-10 00:56:17 by jwe]
jwe
parents: 1192
diff changeset
510 if (ident)
38b876e46ff6 [project @ 1995-04-10 00:56:17 by jwe]
jwe
parents: 1192
diff changeset
511 {
38b876e46ff6 [project @ 1995-04-10 00:56:17 by jwe]
jwe
parents: 1192
diff changeset
512 Octave_map tmp_val (tmp_expr.map_value ());
38b876e46ff6 [project @ 1995-04-10 00:56:17 by jwe]
jwe
parents: 1192
diff changeset
513
38b876e46ff6 [project @ 1995-04-10 00:56:17 by jwe]
jwe
parents: 1192
diff changeset
514 for (Pix p = tmp_val.first (); p != 0; tmp_val.next (p))
38b876e46ff6 [project @ 1995-04-10 00:56:17 by jwe]
jwe
parents: 1192
diff changeset
515 {
38b876e46ff6 [project @ 1995-04-10 00:56:17 by jwe]
jwe
parents: 1192
diff changeset
516 tree_constant rhs (tmp_val.contents (p));
38b876e46ff6 [project @ 1995-04-10 00:56:17 by jwe]
jwe
parents: 1192
diff changeset
517
38b876e46ff6 [project @ 1995-04-10 00:56:17 by jwe]
jwe
parents: 1192
diff changeset
518 int quit;
38b876e46ff6 [project @ 1995-04-10 00:56:17 by jwe]
jwe
parents: 1192
diff changeset
519 do_for_loop_once (ident, rhs, quit);
38b876e46ff6 [project @ 1995-04-10 00:56:17 by jwe]
jwe
parents: 1192
diff changeset
520
38b876e46ff6 [project @ 1995-04-10 00:56:17 by jwe]
jwe
parents: 1192
diff changeset
521 if (quit)
38b876e46ff6 [project @ 1995-04-10 00:56:17 by jwe]
jwe
parents: 1192
diff changeset
522 break;
38b876e46ff6 [project @ 1995-04-10 00:56:17 by jwe]
jwe
parents: 1192
diff changeset
523 }
38b876e46ff6 [project @ 1995-04-10 00:56:17 by jwe]
jwe
parents: 1192
diff changeset
524 }
38b876e46ff6 [project @ 1995-04-10 00:56:17 by jwe]
jwe
parents: 1192
diff changeset
525 else if (id_list)
38b876e46ff6 [project @ 1995-04-10 00:56:17 by jwe]
jwe
parents: 1192
diff changeset
526 {
38b876e46ff6 [project @ 1995-04-10 00:56:17 by jwe]
jwe
parents: 1192
diff changeset
527 // Cycle through structure elements. First element of
38b876e46ff6 [project @ 1995-04-10 00:56:17 by jwe]
jwe
parents: 1192
diff changeset
528 // id_list is set to value and the second is set to the name
38b876e46ff6 [project @ 1995-04-10 00:56:17 by jwe]
jwe
parents: 1192
diff changeset
529 // of the structure element.
38b876e46ff6 [project @ 1995-04-10 00:56:17 by jwe]
jwe
parents: 1192
diff changeset
530
38b876e46ff6 [project @ 1995-04-10 00:56:17 by jwe]
jwe
parents: 1192
diff changeset
531 Octave_map tmp_val (tmp_expr.map_value ());
38b876e46ff6 [project @ 1995-04-10 00:56:17 by jwe]
jwe
parents: 1192
diff changeset
532
38b876e46ff6 [project @ 1995-04-10 00:56:17 by jwe]
jwe
parents: 1192
diff changeset
533 for (Pix p = tmp_val.first (); p != 0; tmp_val.next (p))
38b876e46ff6 [project @ 1995-04-10 00:56:17 by jwe]
jwe
parents: 1192
diff changeset
534 {
38b876e46ff6 [project @ 1995-04-10 00:56:17 by jwe]
jwe
parents: 1192
diff changeset
535 Octave_object tmp;
38b876e46ff6 [project @ 1995-04-10 00:56:17 by jwe]
jwe
parents: 1192
diff changeset
536 tmp (1) = tmp_val.key (p);
38b876e46ff6 [project @ 1995-04-10 00:56:17 by jwe]
jwe
parents: 1192
diff changeset
537 tmp (0) = tmp_val.contents (p);
38b876e46ff6 [project @ 1995-04-10 00:56:17 by jwe]
jwe
parents: 1192
diff changeset
538
38b876e46ff6 [project @ 1995-04-10 00:56:17 by jwe]
jwe
parents: 1192
diff changeset
539 int quit;
38b876e46ff6 [project @ 1995-04-10 00:56:17 by jwe]
jwe
parents: 1192
diff changeset
540 do_for_loop_once (id_list, tmp, quit);
38b876e46ff6 [project @ 1995-04-10 00:56:17 by jwe]
jwe
parents: 1192
diff changeset
541
38b876e46ff6 [project @ 1995-04-10 00:56:17 by jwe]
jwe
parents: 1192
diff changeset
542 if (quit)
38b876e46ff6 [project @ 1995-04-10 00:56:17 by jwe]
jwe
parents: 1192
diff changeset
543 break;
38b876e46ff6 [project @ 1995-04-10 00:56:17 by jwe]
jwe
parents: 1192
diff changeset
544 }
38b876e46ff6 [project @ 1995-04-10 00:56:17 by jwe]
jwe
parents: 1192
diff changeset
545 }
38b876e46ff6 [project @ 1995-04-10 00:56:17 by jwe]
jwe
parents: 1192
diff changeset
546 else
38b876e46ff6 [project @ 1995-04-10 00:56:17 by jwe]
jwe
parents: 1192
diff changeset
547 {
38b876e46ff6 [project @ 1995-04-10 00:56:17 by jwe]
jwe
parents: 1192
diff changeset
548 Octave_map tmp_val (tmp_expr.map_value ());
38b876e46ff6 [project @ 1995-04-10 00:56:17 by jwe]
jwe
parents: 1192
diff changeset
549
38b876e46ff6 [project @ 1995-04-10 00:56:17 by jwe]
jwe
parents: 1192
diff changeset
550 for (Pix p = tmp_val.first (); p != 0; tmp_val.next (p))
38b876e46ff6 [project @ 1995-04-10 00:56:17 by jwe]
jwe
parents: 1192
diff changeset
551 {
38b876e46ff6 [project @ 1995-04-10 00:56:17 by jwe]
jwe
parents: 1192
diff changeset
552 tree_constant rhs = tmp_val.contents (p);
38b876e46ff6 [project @ 1995-04-10 00:56:17 by jwe]
jwe
parents: 1192
diff changeset
553
38b876e46ff6 [project @ 1995-04-10 00:56:17 by jwe]
jwe
parents: 1192
diff changeset
554 int quit;
38b876e46ff6 [project @ 1995-04-10 00:56:17 by jwe]
jwe
parents: 1192
diff changeset
555 do_for_loop_once (tmp_id, rhs, quit);
1168
e2036dce97ea [project @ 1995-03-10 18:49:55 by jwe]
jwe
parents: 1059
diff changeset
556
e2036dce97ea [project @ 1995-03-10 18:49:55 by jwe]
jwe
parents: 1059
diff changeset
557 if (quit)
e2036dce97ea [project @ 1995-03-10 18:49:55 by jwe]
jwe
parents: 1059
diff changeset
558 break;
e2036dce97ea [project @ 1995-03-10 18:49:55 by jwe]
jwe
parents: 1059
diff changeset
559 }
620
8e4e7e5f307e [project @ 1994-08-16 04:36:32 by jwe]
jwe
parents: 584
diff changeset
560 }
8e4e7e5f307e [project @ 1994-08-16 04:36:32 by jwe]
jwe
parents: 584
diff changeset
561 }
8e4e7e5f307e [project @ 1994-08-16 04:36:32 by jwe]
jwe
parents: 584
diff changeset
562 else
8e4e7e5f307e [project @ 1994-08-16 04:36:32 by jwe]
jwe
parents: 584
diff changeset
563 {
8e4e7e5f307e [project @ 1994-08-16 04:36:32 by jwe]
jwe
parents: 584
diff changeset
564 ::error ("invalid type in for loop expression near line %d, column %d",
8e4e7e5f307e [project @ 1994-08-16 04:36:32 by jwe]
jwe
parents: 584
diff changeset
565 line (), column ());
494
2c4d694b87e9 [project @ 1994-07-06 14:55:23 by jwe]
jwe
parents:
diff changeset
566 }
2c4d694b87e9 [project @ 1994-07-06 14:55:23 by jwe]
jwe
parents:
diff changeset
567 }
2c4d694b87e9 [project @ 1994-07-06 14:55:23 by jwe]
jwe
parents:
diff changeset
568
2c4d694b87e9 [project @ 1994-07-06 14:55:23 by jwe]
jwe
parents:
diff changeset
569 void
2c4d694b87e9 [project @ 1994-07-06 14:55:23 by jwe]
jwe
parents:
diff changeset
570 tree_for_command::eval_error (void)
2c4d694b87e9 [project @ 1994-07-06 14:55:23 by jwe]
jwe
parents:
diff changeset
571 {
2c4d694b87e9 [project @ 1994-07-06 14:55:23 by jwe]
jwe
parents:
diff changeset
572 if (error_state > 0)
2c4d694b87e9 [project @ 1994-07-06 14:55:23 by jwe]
jwe
parents:
diff changeset
573 ::error ("evaluating for command near line %d, column %d",
2c4d694b87e9 [project @ 1994-07-06 14:55:23 by jwe]
jwe
parents:
diff changeset
574 line (), column ());
2c4d694b87e9 [project @ 1994-07-06 14:55:23 by jwe]
jwe
parents:
diff changeset
575 }
2c4d694b87e9 [project @ 1994-07-06 14:55:23 by jwe]
jwe
parents:
diff changeset
576
578
d169be9237fb [project @ 1994-08-03 20:06:54 by jwe]
jwe
parents: 529
diff changeset
577 void
581
bc813f5eb025 [project @ 1994-08-07 01:02:15 by jwe]
jwe
parents: 578
diff changeset
578 tree_for_command::print_code (ostream& os)
bc813f5eb025 [project @ 1994-08-07 01:02:15 by jwe]
jwe
parents: 578
diff changeset
579 {
bc813f5eb025 [project @ 1994-08-07 01:02:15 by jwe]
jwe
parents: 578
diff changeset
580 print_code_indent (os);
bc813f5eb025 [project @ 1994-08-07 01:02:15 by jwe]
jwe
parents: 578
diff changeset
581
bc813f5eb025 [project @ 1994-08-07 01:02:15 by jwe]
jwe
parents: 578
diff changeset
582 os << "for ";
bc813f5eb025 [project @ 1994-08-07 01:02:15 by jwe]
jwe
parents: 578
diff changeset
583
bc813f5eb025 [project @ 1994-08-07 01:02:15 by jwe]
jwe
parents: 578
diff changeset
584 if (id)
bc813f5eb025 [project @ 1994-08-07 01:02:15 by jwe]
jwe
parents: 578
diff changeset
585 id->print_code (os);
bc813f5eb025 [project @ 1994-08-07 01:02:15 by jwe]
jwe
parents: 578
diff changeset
586
bc813f5eb025 [project @ 1994-08-07 01:02:15 by jwe]
jwe
parents: 578
diff changeset
587 os << " = ";
bc813f5eb025 [project @ 1994-08-07 01:02:15 by jwe]
jwe
parents: 578
diff changeset
588
bc813f5eb025 [project @ 1994-08-07 01:02:15 by jwe]
jwe
parents: 578
diff changeset
589 if (expr)
bc813f5eb025 [project @ 1994-08-07 01:02:15 by jwe]
jwe
parents: 578
diff changeset
590 expr->print_code (os);
bc813f5eb025 [project @ 1994-08-07 01:02:15 by jwe]
jwe
parents: 578
diff changeset
591
bc813f5eb025 [project @ 1994-08-07 01:02:15 by jwe]
jwe
parents: 578
diff changeset
592 print_code_new_line (os);
bc813f5eb025 [project @ 1994-08-07 01:02:15 by jwe]
jwe
parents: 578
diff changeset
593
bc813f5eb025 [project @ 1994-08-07 01:02:15 by jwe]
jwe
parents: 578
diff changeset
594 if (list)
bc813f5eb025 [project @ 1994-08-07 01:02:15 by jwe]
jwe
parents: 578
diff changeset
595 {
bc813f5eb025 [project @ 1994-08-07 01:02:15 by jwe]
jwe
parents: 578
diff changeset
596 increment_indent_level ();
bc813f5eb025 [project @ 1994-08-07 01:02:15 by jwe]
jwe
parents: 578
diff changeset
597 list->print_code (os);
bc813f5eb025 [project @ 1994-08-07 01:02:15 by jwe]
jwe
parents: 578
diff changeset
598 decrement_indent_level ();
bc813f5eb025 [project @ 1994-08-07 01:02:15 by jwe]
jwe
parents: 578
diff changeset
599 }
bc813f5eb025 [project @ 1994-08-07 01:02:15 by jwe]
jwe
parents: 578
diff changeset
600
bc813f5eb025 [project @ 1994-08-07 01:02:15 by jwe]
jwe
parents: 578
diff changeset
601 print_code_indent (os);
bc813f5eb025 [project @ 1994-08-07 01:02:15 by jwe]
jwe
parents: 578
diff changeset
602
bc813f5eb025 [project @ 1994-08-07 01:02:15 by jwe]
jwe
parents: 578
diff changeset
603 os << "endfor";
bc813f5eb025 [project @ 1994-08-07 01:02:15 by jwe]
jwe
parents: 578
diff changeset
604 }
bc813f5eb025 [project @ 1994-08-07 01:02:15 by jwe]
jwe
parents: 578
diff changeset
605
578
d169be9237fb [project @ 1994-08-03 20:06:54 by jwe]
jwe
parents: 529
diff changeset
606 // If.
494
2c4d694b87e9 [project @ 1994-07-06 14:55:23 by jwe]
jwe
parents:
diff changeset
607
2c4d694b87e9 [project @ 1994-07-06 14:55:23 by jwe]
jwe
parents:
diff changeset
608 tree_if_command::~tree_if_command (void)
2c4d694b87e9 [project @ 1994-07-06 14:55:23 by jwe]
jwe
parents:
diff changeset
609 {
2c4d694b87e9 [project @ 1994-07-06 14:55:23 by jwe]
jwe
parents:
diff changeset
610 delete list;
2c4d694b87e9 [project @ 1994-07-06 14:55:23 by jwe]
jwe
parents:
diff changeset
611 }
2c4d694b87e9 [project @ 1994-07-06 14:55:23 by jwe]
jwe
parents:
diff changeset
612
2c4d694b87e9 [project @ 1994-07-06 14:55:23 by jwe]
jwe
parents:
diff changeset
613 void
578
d169be9237fb [project @ 1994-08-03 20:06:54 by jwe]
jwe
parents: 529
diff changeset
614 tree_if_command::eval (void)
494
2c4d694b87e9 [project @ 1994-07-06 14:55:23 by jwe]
jwe
parents:
diff changeset
615 {
578
d169be9237fb [project @ 1994-08-03 20:06:54 by jwe]
jwe
parents: 529
diff changeset
616 if (list)
d169be9237fb [project @ 1994-08-03 20:06:54 by jwe]
jwe
parents: 529
diff changeset
617 list->eval ();
d169be9237fb [project @ 1994-08-03 20:06:54 by jwe]
jwe
parents: 529
diff changeset
618
494
2c4d694b87e9 [project @ 1994-07-06 14:55:23 by jwe]
jwe
parents:
diff changeset
619 if (error_state > 0)
2c4d694b87e9 [project @ 1994-07-06 14:55:23 by jwe]
jwe
parents:
diff changeset
620 ::error ("evaluating if command near line %d, column %d",
2c4d694b87e9 [project @ 1994-07-06 14:55:23 by jwe]
jwe
parents:
diff changeset
621 line (), column ());
2c4d694b87e9 [project @ 1994-07-06 14:55:23 by jwe]
jwe
parents:
diff changeset
622 }
2c4d694b87e9 [project @ 1994-07-06 14:55:23 by jwe]
jwe
parents:
diff changeset
623
581
bc813f5eb025 [project @ 1994-08-07 01:02:15 by jwe]
jwe
parents: 578
diff changeset
624 void
bc813f5eb025 [project @ 1994-08-07 01:02:15 by jwe]
jwe
parents: 578
diff changeset
625 tree_if_command::print_code (ostream& os)
bc813f5eb025 [project @ 1994-08-07 01:02:15 by jwe]
jwe
parents: 578
diff changeset
626 {
bc813f5eb025 [project @ 1994-08-07 01:02:15 by jwe]
jwe
parents: 578
diff changeset
627 print_code_indent (os);
bc813f5eb025 [project @ 1994-08-07 01:02:15 by jwe]
jwe
parents: 578
diff changeset
628
bc813f5eb025 [project @ 1994-08-07 01:02:15 by jwe]
jwe
parents: 578
diff changeset
629 os << "if ";
bc813f5eb025 [project @ 1994-08-07 01:02:15 by jwe]
jwe
parents: 578
diff changeset
630
bc813f5eb025 [project @ 1994-08-07 01:02:15 by jwe]
jwe
parents: 578
diff changeset
631 if (list)
bc813f5eb025 [project @ 1994-08-07 01:02:15 by jwe]
jwe
parents: 578
diff changeset
632 list->print_code (os);
bc813f5eb025 [project @ 1994-08-07 01:02:15 by jwe]
jwe
parents: 578
diff changeset
633
bc813f5eb025 [project @ 1994-08-07 01:02:15 by jwe]
jwe
parents: 578
diff changeset
634 print_code_indent (os);
bc813f5eb025 [project @ 1994-08-07 01:02:15 by jwe]
jwe
parents: 578
diff changeset
635
bc813f5eb025 [project @ 1994-08-07 01:02:15 by jwe]
jwe
parents: 578
diff changeset
636 os << "endif";
bc813f5eb025 [project @ 1994-08-07 01:02:15 by jwe]
jwe
parents: 578
diff changeset
637 }
bc813f5eb025 [project @ 1994-08-07 01:02:15 by jwe]
jwe
parents: 578
diff changeset
638
916
2f35156aa18b [project @ 1994-11-11 00:36:31 by jwe]
jwe
parents: 877
diff changeset
639 // Simple exception handling.
2f35156aa18b [project @ 1994-11-11 00:36:31 by jwe]
jwe
parents: 877
diff changeset
640
2f35156aa18b [project @ 1994-11-11 00:36:31 by jwe]
jwe
parents: 877
diff changeset
641 tree_unwind_protect_command::~tree_unwind_protect_command (void)
2f35156aa18b [project @ 1994-11-11 00:36:31 by jwe]
jwe
parents: 877
diff changeset
642 {
2f35156aa18b [project @ 1994-11-11 00:36:31 by jwe]
jwe
parents: 877
diff changeset
643 delete unwind_protect_code;
2f35156aa18b [project @ 1994-11-11 00:36:31 by jwe]
jwe
parents: 877
diff changeset
644 delete cleanup_code;
2f35156aa18b [project @ 1994-11-11 00:36:31 by jwe]
jwe
parents: 877
diff changeset
645 }
2f35156aa18b [project @ 1994-11-11 00:36:31 by jwe]
jwe
parents: 877
diff changeset
646
2f35156aa18b [project @ 1994-11-11 00:36:31 by jwe]
jwe
parents: 877
diff changeset
647 static void
2f35156aa18b [project @ 1994-11-11 00:36:31 by jwe]
jwe
parents: 877
diff changeset
648 do_unwind_protect_cleanup_code (void *ptr)
2f35156aa18b [project @ 1994-11-11 00:36:31 by jwe]
jwe
parents: 877
diff changeset
649 {
2f35156aa18b [project @ 1994-11-11 00:36:31 by jwe]
jwe
parents: 877
diff changeset
650 tree_statement_list *list = (tree_statement_list *) ptr;
2f35156aa18b [project @ 1994-11-11 00:36:31 by jwe]
jwe
parents: 877
diff changeset
651
1228
38b876e46ff6 [project @ 1995-04-10 00:56:17 by jwe]
jwe
parents: 1192
diff changeset
652 // We want to run the cleanup code without error_state being set,
38b876e46ff6 [project @ 1995-04-10 00:56:17 by jwe]
jwe
parents: 1192
diff changeset
653 // but we need to restore its value, so that any errors encountered
38b876e46ff6 [project @ 1995-04-10 00:56:17 by jwe]
jwe
parents: 1192
diff changeset
654 // in the first part of the unwind_protect are not completely
38b876e46ff6 [project @ 1995-04-10 00:56:17 by jwe]
jwe
parents: 1192
diff changeset
655 // ignored.
916
2f35156aa18b [project @ 1994-11-11 00:36:31 by jwe]
jwe
parents: 877
diff changeset
656
2f35156aa18b [project @ 1994-11-11 00:36:31 by jwe]
jwe
parents: 877
diff changeset
657 unwind_protect_int (error_state);
1266
e1ddfb12566d [project @ 1995-04-20 18:56:04 by jwe]
jwe
parents: 1234
diff changeset
658 error_state = 0;
916
2f35156aa18b [project @ 1994-11-11 00:36:31 by jwe]
jwe
parents: 877
diff changeset
659
1266
e1ddfb12566d [project @ 1995-04-20 18:56:04 by jwe]
jwe
parents: 1234
diff changeset
660 // Similarly, if we have seen a return or break statement, allow all
e1ddfb12566d [project @ 1995-04-20 18:56:04 by jwe]
jwe
parents: 1234
diff changeset
661 // the cleanup code to run before returning or handling the break.
e1ddfb12566d [project @ 1995-04-20 18:56:04 by jwe]
jwe
parents: 1234
diff changeset
662 // We don't have to worry about continue statements because they can
e1ddfb12566d [project @ 1995-04-20 18:56:04 by jwe]
jwe
parents: 1234
diff changeset
663 // only occur in loops.
e1ddfb12566d [project @ 1995-04-20 18:56:04 by jwe]
jwe
parents: 1234
diff changeset
664
e1ddfb12566d [project @ 1995-04-20 18:56:04 by jwe]
jwe
parents: 1234
diff changeset
665 unwind_protect_int (returning);
e1ddfb12566d [project @ 1995-04-20 18:56:04 by jwe]
jwe
parents: 1234
diff changeset
666 returning = 0;
e1ddfb12566d [project @ 1995-04-20 18:56:04 by jwe]
jwe
parents: 1234
diff changeset
667
e1ddfb12566d [project @ 1995-04-20 18:56:04 by jwe]
jwe
parents: 1234
diff changeset
668 unwind_protect_int (breaking);
e1ddfb12566d [project @ 1995-04-20 18:56:04 by jwe]
jwe
parents: 1234
diff changeset
669 breaking = 0;
916
2f35156aa18b [project @ 1994-11-11 00:36:31 by jwe]
jwe
parents: 877
diff changeset
670
2f35156aa18b [project @ 1994-11-11 00:36:31 by jwe]
jwe
parents: 877
diff changeset
671 if (list)
2f35156aa18b [project @ 1994-11-11 00:36:31 by jwe]
jwe
parents: 877
diff changeset
672 list->eval (1);
2f35156aa18b [project @ 1994-11-11 00:36:31 by jwe]
jwe
parents: 877
diff changeset
673
1266
e1ddfb12566d [project @ 1995-04-20 18:56:04 by jwe]
jwe
parents: 1234
diff changeset
674 // This is the one for breaking. (The unwind_protects are popped
e1ddfb12566d [project @ 1995-04-20 18:56:04 by jwe]
jwe
parents: 1234
diff changeset
675 // off the stack in the reverse of the order they are pushed on).
e1ddfb12566d [project @ 1995-04-20 18:56:04 by jwe]
jwe
parents: 1234
diff changeset
676
e1ddfb12566d [project @ 1995-04-20 18:56:04 by jwe]
jwe
parents: 1234
diff changeset
677 // XXX FIXME XXX -- inside an unwind_protect, should break work like
e1ddfb12566d [project @ 1995-04-20 18:56:04 by jwe]
jwe
parents: 1234
diff changeset
678 // a return, or just jump to the end of the unwind_protect block?
e1ddfb12566d [project @ 1995-04-20 18:56:04 by jwe]
jwe
parents: 1234
diff changeset
679 // The following code makes it just jump to the end of the block.
e1ddfb12566d [project @ 1995-04-20 18:56:04 by jwe]
jwe
parents: 1234
diff changeset
680
e1ddfb12566d [project @ 1995-04-20 18:56:04 by jwe]
jwe
parents: 1234
diff changeset
681 run_unwind_protect ();
e1ddfb12566d [project @ 1995-04-20 18:56:04 by jwe]
jwe
parents: 1234
diff changeset
682 if (breaking)
e1ddfb12566d [project @ 1995-04-20 18:56:04 by jwe]
jwe
parents: 1234
diff changeset
683 breaking--;
e1ddfb12566d [project @ 1995-04-20 18:56:04 by jwe]
jwe
parents: 1234
diff changeset
684
e1ddfb12566d [project @ 1995-04-20 18:56:04 by jwe]
jwe
parents: 1234
diff changeset
685 // This is the one for returning.
e1ddfb12566d [project @ 1995-04-20 18:56:04 by jwe]
jwe
parents: 1234
diff changeset
686
e1ddfb12566d [project @ 1995-04-20 18:56:04 by jwe]
jwe
parents: 1234
diff changeset
687 if (returning)
e1ddfb12566d [project @ 1995-04-20 18:56:04 by jwe]
jwe
parents: 1234
diff changeset
688 discard_unwind_protect ();
e1ddfb12566d [project @ 1995-04-20 18:56:04 by jwe]
jwe
parents: 1234
diff changeset
689 else
e1ddfb12566d [project @ 1995-04-20 18:56:04 by jwe]
jwe
parents: 1234
diff changeset
690 run_unwind_protect ();
e1ddfb12566d [project @ 1995-04-20 18:56:04 by jwe]
jwe
parents: 1234
diff changeset
691
1228
38b876e46ff6 [project @ 1995-04-10 00:56:17 by jwe]
jwe
parents: 1192
diff changeset
692 // We don't want to ignore errors that occur in the cleanup code, so
38b876e46ff6 [project @ 1995-04-10 00:56:17 by jwe]
jwe
parents: 1192
diff changeset
693 // if an error is encountered there, leave error_state alone.
38b876e46ff6 [project @ 1995-04-10 00:56:17 by jwe]
jwe
parents: 1192
diff changeset
694 // Otherwise, set it back to what it was before.
916
2f35156aa18b [project @ 1994-11-11 00:36:31 by jwe]
jwe
parents: 877
diff changeset
695
2f35156aa18b [project @ 1994-11-11 00:36:31 by jwe]
jwe
parents: 877
diff changeset
696 if (error_state)
2f35156aa18b [project @ 1994-11-11 00:36:31 by jwe]
jwe
parents: 877
diff changeset
697 discard_unwind_protect ();
2f35156aa18b [project @ 1994-11-11 00:36:31 by jwe]
jwe
parents: 877
diff changeset
698 else
2f35156aa18b [project @ 1994-11-11 00:36:31 by jwe]
jwe
parents: 877
diff changeset
699 run_unwind_protect ();
2f35156aa18b [project @ 1994-11-11 00:36:31 by jwe]
jwe
parents: 877
diff changeset
700 }
2f35156aa18b [project @ 1994-11-11 00:36:31 by jwe]
jwe
parents: 877
diff changeset
701
2f35156aa18b [project @ 1994-11-11 00:36:31 by jwe]
jwe
parents: 877
diff changeset
702 void
2f35156aa18b [project @ 1994-11-11 00:36:31 by jwe]
jwe
parents: 877
diff changeset
703 tree_unwind_protect_command::eval (void)
2f35156aa18b [project @ 1994-11-11 00:36:31 by jwe]
jwe
parents: 877
diff changeset
704 {
1372
6d79fce68412 [project @ 1995-09-06 22:22:06 by jwe]
jwe
parents: 1352
diff changeset
705 begin_unwind_frame ("tree_unwind_protect::eval");
6d79fce68412 [project @ 1995-09-06 22:22:06 by jwe]
jwe
parents: 1352
diff changeset
706
916
2f35156aa18b [project @ 1994-11-11 00:36:31 by jwe]
jwe
parents: 877
diff changeset
707 add_unwind_protect (do_unwind_protect_cleanup_code, cleanup_code);
2f35156aa18b [project @ 1994-11-11 00:36:31 by jwe]
jwe
parents: 877
diff changeset
708
1372
6d79fce68412 [project @ 1995-09-06 22:22:06 by jwe]
jwe
parents: 1352
diff changeset
709 if (cleanup_code)
6d79fce68412 [project @ 1995-09-06 22:22:06 by jwe]
jwe
parents: 1352
diff changeset
710 {
6d79fce68412 [project @ 1995-09-06 22:22:06 by jwe]
jwe
parents: 1352
diff changeset
711 unwind_protect_int (suppress_octave_error_messages);
6d79fce68412 [project @ 1995-09-06 22:22:06 by jwe]
jwe
parents: 1352
diff changeset
712 suppress_octave_error_messages = 1;
6d79fce68412 [project @ 1995-09-06 22:22:06 by jwe]
jwe
parents: 1352
diff changeset
713 }
6d79fce68412 [project @ 1995-09-06 22:22:06 by jwe]
jwe
parents: 1352
diff changeset
714
916
2f35156aa18b [project @ 1994-11-11 00:36:31 by jwe]
jwe
parents: 877
diff changeset
715 if (unwind_protect_code)
2f35156aa18b [project @ 1994-11-11 00:36:31 by jwe]
jwe
parents: 877
diff changeset
716 unwind_protect_code->eval (1);
2f35156aa18b [project @ 1994-11-11 00:36:31 by jwe]
jwe
parents: 877
diff changeset
717
1372
6d79fce68412 [project @ 1995-09-06 22:22:06 by jwe]
jwe
parents: 1352
diff changeset
718 if (cleanup_code && error_state)
6d79fce68412 [project @ 1995-09-06 22:22:06 by jwe]
jwe
parents: 1352
diff changeset
719 error_state = 0;
6d79fce68412 [project @ 1995-09-06 22:22:06 by jwe]
jwe
parents: 1352
diff changeset
720
6d79fce68412 [project @ 1995-09-06 22:22:06 by jwe]
jwe
parents: 1352
diff changeset
721 run_unwind_frame ("tree_unwind_protect::eval");
916
2f35156aa18b [project @ 1994-11-11 00:36:31 by jwe]
jwe
parents: 877
diff changeset
722 }
2f35156aa18b [project @ 1994-11-11 00:36:31 by jwe]
jwe
parents: 877
diff changeset
723
2f35156aa18b [project @ 1994-11-11 00:36:31 by jwe]
jwe
parents: 877
diff changeset
724 void
2f35156aa18b [project @ 1994-11-11 00:36:31 by jwe]
jwe
parents: 877
diff changeset
725 tree_unwind_protect_command::print_code (ostream& os)
2f35156aa18b [project @ 1994-11-11 00:36:31 by jwe]
jwe
parents: 877
diff changeset
726 {
2f35156aa18b [project @ 1994-11-11 00:36:31 by jwe]
jwe
parents: 877
diff changeset
727 print_code_indent (os);
2f35156aa18b [project @ 1994-11-11 00:36:31 by jwe]
jwe
parents: 877
diff changeset
728
2f35156aa18b [project @ 1994-11-11 00:36:31 by jwe]
jwe
parents: 877
diff changeset
729 os << "unwind_protect";
2f35156aa18b [project @ 1994-11-11 00:36:31 by jwe]
jwe
parents: 877
diff changeset
730
2f35156aa18b [project @ 1994-11-11 00:36:31 by jwe]
jwe
parents: 877
diff changeset
731 print_code_new_line (os);
2f35156aa18b [project @ 1994-11-11 00:36:31 by jwe]
jwe
parents: 877
diff changeset
732
2f35156aa18b [project @ 1994-11-11 00:36:31 by jwe]
jwe
parents: 877
diff changeset
733 if (unwind_protect_code)
2f35156aa18b [project @ 1994-11-11 00:36:31 by jwe]
jwe
parents: 877
diff changeset
734 {
2f35156aa18b [project @ 1994-11-11 00:36:31 by jwe]
jwe
parents: 877
diff changeset
735 increment_indent_level ();
2f35156aa18b [project @ 1994-11-11 00:36:31 by jwe]
jwe
parents: 877
diff changeset
736 unwind_protect_code->print_code (os);
2f35156aa18b [project @ 1994-11-11 00:36:31 by jwe]
jwe
parents: 877
diff changeset
737 decrement_indent_level ();
2f35156aa18b [project @ 1994-11-11 00:36:31 by jwe]
jwe
parents: 877
diff changeset
738 }
2f35156aa18b [project @ 1994-11-11 00:36:31 by jwe]
jwe
parents: 877
diff changeset
739
2f35156aa18b [project @ 1994-11-11 00:36:31 by jwe]
jwe
parents: 877
diff changeset
740 print_code_indent (os);
2f35156aa18b [project @ 1994-11-11 00:36:31 by jwe]
jwe
parents: 877
diff changeset
741
2f35156aa18b [project @ 1994-11-11 00:36:31 by jwe]
jwe
parents: 877
diff changeset
742 os << "cleanup_code";
2f35156aa18b [project @ 1994-11-11 00:36:31 by jwe]
jwe
parents: 877
diff changeset
743
2f35156aa18b [project @ 1994-11-11 00:36:31 by jwe]
jwe
parents: 877
diff changeset
744 print_code_new_line (os);
2f35156aa18b [project @ 1994-11-11 00:36:31 by jwe]
jwe
parents: 877
diff changeset
745
2f35156aa18b [project @ 1994-11-11 00:36:31 by jwe]
jwe
parents: 877
diff changeset
746 if (cleanup_code)
2f35156aa18b [project @ 1994-11-11 00:36:31 by jwe]
jwe
parents: 877
diff changeset
747 {
2f35156aa18b [project @ 1994-11-11 00:36:31 by jwe]
jwe
parents: 877
diff changeset
748 increment_indent_level ();
2f35156aa18b [project @ 1994-11-11 00:36:31 by jwe]
jwe
parents: 877
diff changeset
749 cleanup_code->print_code (os);
2f35156aa18b [project @ 1994-11-11 00:36:31 by jwe]
jwe
parents: 877
diff changeset
750 decrement_indent_level ();
2f35156aa18b [project @ 1994-11-11 00:36:31 by jwe]
jwe
parents: 877
diff changeset
751 }
2f35156aa18b [project @ 1994-11-11 00:36:31 by jwe]
jwe
parents: 877
diff changeset
752
2f35156aa18b [project @ 1994-11-11 00:36:31 by jwe]
jwe
parents: 877
diff changeset
753 print_code_indent (os);
2f35156aa18b [project @ 1994-11-11 00:36:31 by jwe]
jwe
parents: 877
diff changeset
754
2f35156aa18b [project @ 1994-11-11 00:36:31 by jwe]
jwe
parents: 877
diff changeset
755 os << "end_unwind_protect";
2f35156aa18b [project @ 1994-11-11 00:36:31 by jwe]
jwe
parents: 877
diff changeset
756 }
2f35156aa18b [project @ 1994-11-11 00:36:31 by jwe]
jwe
parents: 877
diff changeset
757
578
d169be9237fb [project @ 1994-08-03 20:06:54 by jwe]
jwe
parents: 529
diff changeset
758 // Break.
494
2c4d694b87e9 [project @ 1994-07-06 14:55:23 by jwe]
jwe
parents:
diff changeset
759
578
d169be9237fb [project @ 1994-08-03 20:06:54 by jwe]
jwe
parents: 529
diff changeset
760 void
d169be9237fb [project @ 1994-08-03 20:06:54 by jwe]
jwe
parents: 529
diff changeset
761 tree_break_command::eval (void)
494
2c4d694b87e9 [project @ 1994-07-06 14:55:23 by jwe]
jwe
parents:
diff changeset
762 {
2c4d694b87e9 [project @ 1994-07-06 14:55:23 by jwe]
jwe
parents:
diff changeset
763 if (! error_state)
2c4d694b87e9 [project @ 1994-07-06 14:55:23 by jwe]
jwe
parents:
diff changeset
764 breaking = 1;
2c4d694b87e9 [project @ 1994-07-06 14:55:23 by jwe]
jwe
parents:
diff changeset
765 }
2c4d694b87e9 [project @ 1994-07-06 14:55:23 by jwe]
jwe
parents:
diff changeset
766
581
bc813f5eb025 [project @ 1994-08-07 01:02:15 by jwe]
jwe
parents: 578
diff changeset
767 void
bc813f5eb025 [project @ 1994-08-07 01:02:15 by jwe]
jwe
parents: 578
diff changeset
768 tree_break_command::print_code (ostream& os)
bc813f5eb025 [project @ 1994-08-07 01:02:15 by jwe]
jwe
parents: 578
diff changeset
769 {
bc813f5eb025 [project @ 1994-08-07 01:02:15 by jwe]
jwe
parents: 578
diff changeset
770 print_code_indent (os);
bc813f5eb025 [project @ 1994-08-07 01:02:15 by jwe]
jwe
parents: 578
diff changeset
771
bc813f5eb025 [project @ 1994-08-07 01:02:15 by jwe]
jwe
parents: 578
diff changeset
772 os << "break";
bc813f5eb025 [project @ 1994-08-07 01:02:15 by jwe]
jwe
parents: 578
diff changeset
773 }
bc813f5eb025 [project @ 1994-08-07 01:02:15 by jwe]
jwe
parents: 578
diff changeset
774
578
d169be9237fb [project @ 1994-08-03 20:06:54 by jwe]
jwe
parents: 529
diff changeset
775 // Continue.
494
2c4d694b87e9 [project @ 1994-07-06 14:55:23 by jwe]
jwe
parents:
diff changeset
776
578
d169be9237fb [project @ 1994-08-03 20:06:54 by jwe]
jwe
parents: 529
diff changeset
777 void
d169be9237fb [project @ 1994-08-03 20:06:54 by jwe]
jwe
parents: 529
diff changeset
778 tree_continue_command::eval (void)
494
2c4d694b87e9 [project @ 1994-07-06 14:55:23 by jwe]
jwe
parents:
diff changeset
779 {
2c4d694b87e9 [project @ 1994-07-06 14:55:23 by jwe]
jwe
parents:
diff changeset
780 if (! error_state)
2c4d694b87e9 [project @ 1994-07-06 14:55:23 by jwe]
jwe
parents:
diff changeset
781 continuing = 1;
2c4d694b87e9 [project @ 1994-07-06 14:55:23 by jwe]
jwe
parents:
diff changeset
782 }
2c4d694b87e9 [project @ 1994-07-06 14:55:23 by jwe]
jwe
parents:
diff changeset
783
581
bc813f5eb025 [project @ 1994-08-07 01:02:15 by jwe]
jwe
parents: 578
diff changeset
784 void
bc813f5eb025 [project @ 1994-08-07 01:02:15 by jwe]
jwe
parents: 578
diff changeset
785 tree_continue_command::print_code (ostream& os)
bc813f5eb025 [project @ 1994-08-07 01:02:15 by jwe]
jwe
parents: 578
diff changeset
786 {
bc813f5eb025 [project @ 1994-08-07 01:02:15 by jwe]
jwe
parents: 578
diff changeset
787 print_code_indent (os);
bc813f5eb025 [project @ 1994-08-07 01:02:15 by jwe]
jwe
parents: 578
diff changeset
788
bc813f5eb025 [project @ 1994-08-07 01:02:15 by jwe]
jwe
parents: 578
diff changeset
789 os << "continue";
bc813f5eb025 [project @ 1994-08-07 01:02:15 by jwe]
jwe
parents: 578
diff changeset
790 }
bc813f5eb025 [project @ 1994-08-07 01:02:15 by jwe]
jwe
parents: 578
diff changeset
791
578
d169be9237fb [project @ 1994-08-03 20:06:54 by jwe]
jwe
parents: 529
diff changeset
792 // Return.
494
2c4d694b87e9 [project @ 1994-07-06 14:55:23 by jwe]
jwe
parents:
diff changeset
793
578
d169be9237fb [project @ 1994-08-03 20:06:54 by jwe]
jwe
parents: 529
diff changeset
794 void
d169be9237fb [project @ 1994-08-03 20:06:54 by jwe]
jwe
parents: 529
diff changeset
795 tree_return_command::eval (void)
494
2c4d694b87e9 [project @ 1994-07-06 14:55:23 by jwe]
jwe
parents:
diff changeset
796 {
2c4d694b87e9 [project @ 1994-07-06 14:55:23 by jwe]
jwe
parents:
diff changeset
797 if (! error_state)
2c4d694b87e9 [project @ 1994-07-06 14:55:23 by jwe]
jwe
parents:
diff changeset
798 returning = 1;
2c4d694b87e9 [project @ 1994-07-06 14:55:23 by jwe]
jwe
parents:
diff changeset
799 }
2c4d694b87e9 [project @ 1994-07-06 14:55:23 by jwe]
jwe
parents:
diff changeset
800
581
bc813f5eb025 [project @ 1994-08-07 01:02:15 by jwe]
jwe
parents: 578
diff changeset
801 void
bc813f5eb025 [project @ 1994-08-07 01:02:15 by jwe]
jwe
parents: 578
diff changeset
802 tree_return_command::print_code (ostream& os)
bc813f5eb025 [project @ 1994-08-07 01:02:15 by jwe]
jwe
parents: 578
diff changeset
803 {
bc813f5eb025 [project @ 1994-08-07 01:02:15 by jwe]
jwe
parents: 578
diff changeset
804 print_code_indent (os);
bc813f5eb025 [project @ 1994-08-07 01:02:15 by jwe]
jwe
parents: 578
diff changeset
805
bc813f5eb025 [project @ 1994-08-07 01:02:15 by jwe]
jwe
parents: 578
diff changeset
806 os << "return";
bc813f5eb025 [project @ 1994-08-07 01:02:15 by jwe]
jwe
parents: 578
diff changeset
807 }
bc813f5eb025 [project @ 1994-08-07 01:02:15 by jwe]
jwe
parents: 578
diff changeset
808
494
2c4d694b87e9 [project @ 1994-07-06 14:55:23 by jwe]
jwe
parents:
diff changeset
809 /*
2c4d694b87e9 [project @ 1994-07-06 14:55:23 by jwe]
jwe
parents:
diff changeset
810 ;;; Local Variables: ***
2c4d694b87e9 [project @ 1994-07-06 14:55:23 by jwe]
jwe
parents:
diff changeset
811 ;;; mode: C++ ***
2c4d694b87e9 [project @ 1994-07-06 14:55:23 by jwe]
jwe
parents:
diff changeset
812 ;;; page-delimiter: "^/\\*" ***
2c4d694b87e9 [project @ 1994-07-06 14:55:23 by jwe]
jwe
parents:
diff changeset
813 ;;; End: ***
2c4d694b87e9 [project @ 1994-07-06 14:55:23 by jwe]
jwe
parents:
diff changeset
814 */