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1 /* |
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2 |
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3 Copyright (C) 1996, 1997 John W. Eaton |
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4 |
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5 This file is part of Octave. |
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6 |
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7 Octave is free software; you can redistribute it and/or modify it |
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8 under the terms of the GNU General Public License as published by the |
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9 Free Software Foundation; either version 2, or (at your option) any |
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10 later version. |
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11 |
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12 Octave is distributed in the hope that it will be useful, but WITHOUT |
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13 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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15 for more details. |
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16 |
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17 You should have received a copy of the GNU General Public License |
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18 along with Octave; see the file COPYING. If not, write to the Free |
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19 Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
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20 |
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21 */ |
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22 |
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23 #ifdef HAVE_CONFIG_H |
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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 |
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3503
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29 #include <iostream> |
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30 |
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31 #include "comment-list.h" |
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32 #include "error.h" |
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33 #include "ov-usr-fcn.h" |
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34 #include "pr-output.h" |
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35 #include "pt-all.h" |
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36 |
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37 void |
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38 tree_print_code::visit_argument_list (tree_argument_list& lst) |
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39 { |
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40 tree_argument_list::iterator p = lst.begin (); |
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41 |
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42 while (p != lst.end ()) |
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43 { |
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44 tree_expression *elt = *p++; |
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45 |
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46 if (elt) |
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47 { |
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48 elt->accept (*this); |
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49 |
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50 if (p != lst.end ()) |
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51 os << ", "; |
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52 } |
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53 } |
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54 } |
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55 |
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56 void |
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57 tree_print_code::visit_binary_expression (tree_binary_expression& expr) |
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58 { |
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59 indent (); |
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60 |
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61 print_parens (expr, "("); |
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62 |
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63 tree_expression *op1 = expr.lhs (); |
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64 |
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65 if (op1) |
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66 op1->accept (*this); |
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67 |
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68 os << " " << expr.oper () << " "; |
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69 |
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70 tree_expression *op2 = expr.rhs (); |
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71 |
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72 if (op2) |
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73 op2->accept (*this); |
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74 |
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75 print_parens (expr, ")"); |
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76 } |
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77 |
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78 void |
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79 tree_print_code::visit_break_command (tree_break_command&) |
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80 { |
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81 indent (); |
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82 |
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83 os << "break"; |
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84 } |
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85 |
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86 void |
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87 tree_print_code::visit_colon_expression (tree_colon_expression& expr) |
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88 { |
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89 indent (); |
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90 |
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91 print_parens (expr, "("); |
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92 |
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93 tree_expression *op1 = expr.base (); |
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94 |
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95 if (op1) |
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96 op1->accept (*this); |
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97 |
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98 // Stupid syntax. |
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99 |
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100 tree_expression *op3 = expr.increment (); |
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101 |
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102 if (op3) |
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103 { |
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104 os << ":"; |
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105 op3->accept (*this); |
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106 } |
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107 |
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108 tree_expression *op2 = expr.limit (); |
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109 |
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110 if (op2) |
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111 { |
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112 os << ":"; |
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113 op2->accept (*this); |
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114 } |
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115 |
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116 print_parens (expr, ")"); |
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117 } |
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118 |
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119 void |
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120 tree_print_code::visit_continue_command (tree_continue_command&) |
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121 { |
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122 indent (); |
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123 |
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124 os << "continue"; |
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125 } |
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126 |
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127 void |
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128 tree_print_code::visit_decl_command (tree_decl_command& cmd) |
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129 { |
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130 indent (); |
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131 |
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132 os << cmd.name () << " "; |
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133 |
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134 tree_decl_init_list *init_list = cmd.initializer_list (); |
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135 |
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136 if (init_list) |
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137 init_list->accept (*this); |
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138 } |
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139 |
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140 void |
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141 tree_print_code::visit_decl_elt (tree_decl_elt& cmd) |
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142 { |
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143 tree_identifier *id = cmd.ident (); |
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144 |
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145 if (id) |
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146 id->accept (*this); |
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147 |
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148 tree_expression *expr = cmd.expression (); |
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149 |
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150 if (expr) |
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151 { |
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152 os << " = "; |
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153 |
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154 expr->accept (*this); |
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155 } |
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156 } |
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157 |
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158 void |
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159 tree_print_code::visit_decl_init_list (tree_decl_init_list& lst) |
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160 { |
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161 tree_decl_init_list::iterator p = lst.begin (); |
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162 |
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163 while (p != lst.end ()) |
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164 { |
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165 tree_decl_elt *elt = *p++; |
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166 |
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167 if (elt) |
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168 { |
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169 elt->accept (*this); |
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170 |
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171 if (p != lst.end ()) |
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172 os << ", "; |
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173 } |
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174 } |
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175 } |
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176 |
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177 void |
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178 tree_print_code::visit_simple_for_command (tree_simple_for_command& cmd) |
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179 { |
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180 print_comment_list (cmd.leading_comment ()); |
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181 |
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182 indent (); |
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183 |
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184 os << "for "; |
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185 |
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186 tree_expression *lhs = cmd.left_hand_side (); |
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187 |
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188 if (lhs) |
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189 lhs->accept (*this); |
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190 |
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191 os << " = "; |
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192 |
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193 tree_expression *expr = cmd.control_expr (); |
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194 |
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195 if (expr) |
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196 expr->accept (*this); |
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197 |
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198 newline (); |
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199 |
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200 tree_statement_list *list = cmd.body (); |
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201 |
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202 if (list) |
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203 { |
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204 increment_indent_level (); |
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205 |
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206 list->accept (*this); |
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207 |
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208 decrement_indent_level (); |
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209 } |
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210 |
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211 print_indented_comment (cmd.trailing_comment ()); |
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212 |
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213 indent (); |
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214 |
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215 os << "endfor"; |
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216 } |
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217 |
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218 void |
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219 tree_print_code::visit_complex_for_command (tree_complex_for_command& cmd) |
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220 { |
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221 print_comment_list (cmd.leading_comment ()); |
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222 |
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223 indent (); |
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224 |
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225 os << "for ["; |
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226 nesting.push ('['); |
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227 |
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228 tree_argument_list *lhs = cmd.left_hand_side (); |
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229 |
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230 if (lhs) |
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231 lhs->accept (*this); |
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232 |
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233 nesting.pop (); |
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234 os << "] = "; |
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235 |
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236 tree_expression *expr = cmd.control_expr (); |
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237 |
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238 if (expr) |
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239 expr->accept (*this); |
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240 |
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241 newline (); |
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242 |
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243 tree_statement_list *list = cmd.body (); |
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244 |
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245 if (list) |
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246 { |
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247 increment_indent_level (); |
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248 |
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249 list->accept (*this); |
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250 |
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251 decrement_indent_level (); |
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252 } |
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253 |
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254 print_indented_comment (cmd.trailing_comment ()); |
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255 |
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256 indent (); |
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257 |
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258 os << "endfor"; |
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259 } |
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260 |
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261 void |
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262 tree_print_code::visit_octave_user_function (octave_user_function& fcn) |
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263 { |
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264 reset (); |
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265 |
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266 visit_octave_user_function_header (fcn); |
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267 |
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268 tree_statement_list *cmd_list = fcn.body (); |
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269 |
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270 if (cmd_list) |
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271 { |
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272 increment_indent_level (); |
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273 |
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274 cmd_list->accept (*this); |
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275 |
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276 decrement_indent_level (); |
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277 } |
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278 |
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279 visit_octave_user_function_trailer (fcn); |
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280 } |
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281 |
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282 void |
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283 tree_print_code::visit_octave_user_function_header (octave_user_function& fcn) |
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284 { |
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285 octave_comment_list *leading_comment = fcn.leading_comment (); |
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286 |
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287 if (leading_comment) |
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288 { |
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289 print_comment_list (leading_comment); |
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290 newline (); |
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291 } |
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292 |
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293 indent (); |
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294 |
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295 os << "function "; |
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296 |
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297 tree_parameter_list *ret_list = fcn.return_list (); |
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298 |
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299 if (ret_list) |
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300 { |
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301 bool takes_var_return = fcn.takes_var_return (); |
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302 |
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303 int len = ret_list->length (); |
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304 |
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305 if (len > 1 || takes_var_return) |
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306 { |
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307 os << "["; |
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308 nesting.push ('['); |
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309 } |
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310 |
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311 ret_list->accept (*this); |
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312 |
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313 if (takes_var_return) |
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314 { |
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315 if (len > 0) |
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316 os << ", "; |
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317 |
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318 os << "..."; |
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319 } |
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320 |
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321 if (len > 1 || takes_var_return) |
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322 { |
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323 nesting.pop (); |
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324 os << "]"; |
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325 } |
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326 |
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327 os << " = "; |
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328 } |
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329 |
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330 std::string fcn_name = fcn.name (); |
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331 |
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332 os << (fcn_name.empty () ? std::string ("(empty)") : fcn_name) << " "; |
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333 |
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334 tree_parameter_list *param_list = fcn.parameter_list (); |
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335 |
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336 if (param_list) |
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337 { |
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338 bool takes_varargs = fcn.takes_varargs (); |
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339 |
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340 int len = param_list->length (); |
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341 |
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342 if (len > 0 || takes_varargs) |
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343 { |
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344 os << "("; |
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345 nesting.push ('('); |
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346 } |
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347 |
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348 param_list->accept (*this); |
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349 |
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350 if (takes_varargs) |
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351 { |
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352 if (len > 0) |
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353 os << ", "; |
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354 |
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355 os << "..."; |
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356 } |
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357 |
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358 if (len > 0 || takes_varargs) |
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359 { |
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360 nesting.pop (); |
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361 os << ")"; |
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362 newline (); |
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363 } |
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364 } |
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365 else |
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366 { |
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367 os << "()"; |
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368 newline (); |
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369 } |
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370 } |
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371 |
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372 void |
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373 tree_print_code::visit_octave_user_function_trailer (octave_user_function& fcn) |
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374 { |
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375 print_indented_comment (fcn.trailing_comment ()); |
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376 |
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377 indent (); |
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378 |
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379 os << "endfunction"; |
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380 |
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381 newline (); |
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382 } |
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383 |
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384 void |
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385 tree_print_code::visit_identifier (tree_identifier& id) |
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386 { |
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387 indent (); |
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388 |
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389 print_parens (id, "("); |
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390 |
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391 std::string nm = id.name (); |
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392 os << (nm.empty () ? std::string ("(empty)") : nm); |
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393 |
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394 print_parens (id, ")"); |
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395 } |
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396 |
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397 void |
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398 tree_print_code::visit_if_clause (tree_if_clause& cmd) |
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399 { |
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400 tree_expression *expr = cmd.condition (); |
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401 |
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402 if (expr) |
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403 expr->accept (*this); |
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404 |
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405 newline (); |
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406 |
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407 tree_statement_list *list = cmd.commands (); |
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408 |
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409 if (list) |
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410 { |
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411 increment_indent_level (); |
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412 |
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413 list->accept (*this); |
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414 |
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415 decrement_indent_level (); |
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416 } |
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417 } |
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418 |
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419 void |
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420 tree_print_code::visit_if_command (tree_if_command& cmd) |
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421 { |
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422 print_comment_list (cmd.leading_comment ()); |
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423 |
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424 indent (); |
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425 |
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426 os << "if "; |
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427 |
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428 tree_if_command_list *list = cmd.cmd_list (); |
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429 |
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430 if (list) |
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431 list->accept (*this); |
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432 |
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433 print_indented_comment (cmd.trailing_comment ()); |
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434 |
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435 indent (); |
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436 |
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437 os << "endif"; |
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438 } |
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439 |
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440 void |
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441 tree_print_code::visit_if_command_list (tree_if_command_list& lst) |
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442 { |
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443 tree_if_command_list::iterator p = lst.begin (); |
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444 |
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445 bool first_elt = true; |
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446 |
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447 while (p != lst.end ()) |
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448 { |
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449 tree_if_clause *elt = *p++; |
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450 |
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451 if (elt) |
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452 { |
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453 if (! first_elt) |
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454 { |
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455 print_indented_comment (elt->leading_comment ()); |
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456 |
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457 indent (); |
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458 |
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459 if (elt->is_else_clause ()) |
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460 os << "else"; |
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461 else |
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462 os << "elseif "; |
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463 } |
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464 |
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465 elt->accept (*this); |
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466 } |
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467 |
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468 first_elt = false; |
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469 } |
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470 } |
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471 |
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472 void |
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473 tree_print_code::visit_index_expression (tree_index_expression& expr) |
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474 { |
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475 indent (); |
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476 |
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2961
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477 print_parens (expr, "("); |
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478 |
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3665
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479 bool expr_has_parens = false; |
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480 |
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3010
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481 tree_expression *e = expr.expression (); |
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482 |
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2969
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483 if (e) |
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3665
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484 { |
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485 e->accept (*this); |
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486 |
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487 expr_has_parens = e->is_postfix_indexed (); |
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488 } |
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489 |
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4219
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490 std::list<tree_argument_list *> arg_lists = expr.arg_lists (); |
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491 std::string type_tags = expr.type_tags (); |
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4219
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492 std::list<string_vector> arg_names = expr.arg_names (); |
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493 |
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3933
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494 int n = type_tags.length (); |
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495 |
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4219
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496 std::list<tree_argument_list *>::iterator p_arg_lists = arg_lists.begin (); |
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497 std::list<string_vector>::iterator p_arg_names = arg_names.begin (); |
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3933
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498 |
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499 for (int i = 0; i < n; i++) |
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2123
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500 { |
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3933
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501 switch (type_tags[i]) |
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502 { |
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503 case '(': |
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504 { |
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4676
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505 char nc = nesting.top (); |
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506 if ((nc == '[' || nc == '{') && expr.paren_count () == 0) |
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507 os << "("; |
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508 else |
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509 os << " ("; |
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510 nesting.push ('('); |
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511 |
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4219
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512 tree_argument_list *l = *p_arg_lists; |
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3933
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513 if (l) |
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514 l->accept (*this); |
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4676
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515 |
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516 nesting.pop (); |
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3933
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517 os << ")"; |
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518 } |
|
|
519 break; |
|
|
520 |
|
|
521 case '{': |
|
|
522 { |
|
4676
|
523 char nc = nesting.top (); |
|
|
524 if ((nc == '[' || nc == '{') && expr.paren_count () == 0) |
|
|
525 os << "{"; |
|
|
526 else |
|
|
527 os << " {"; |
|
|
528 // We only care about whitespace inside [] and {} when we |
|
|
529 // are defining matrix and cell objects, not when indexing. |
|
|
530 nesting.push ('('); |
|
|
531 |
|
4219
|
532 tree_argument_list *l = *p_arg_lists; |
|
3933
|
533 if (l) |
|
|
534 l->accept (*this); |
|
4676
|
535 |
|
|
536 nesting.pop (); |
|
3933
|
537 os << "}"; |
|
|
538 } |
|
|
539 break; |
|
|
540 |
|
|
541 case '.': |
|
|
542 { |
|
4219
|
543 string_vector nm = *p_arg_names; |
|
3933
|
544 assert (nm.length () == 1); |
|
|
545 os << "." << nm(0); |
|
|
546 } |
|
|
547 break; |
|
|
548 |
|
|
549 default: |
|
|
550 panic_impossible (); |
|
|
551 } |
|
|
552 |
|
4219
|
553 p_arg_lists++; |
|
|
554 p_arg_names++; |
|
3930
|
555 } |
|
2123
|
556 |
|
2961
|
557 print_parens (expr, ")"); |
|
2123
|
558 } |
|
|
559 |
|
|
560 void |
|
|
561 tree_print_code::visit_matrix (tree_matrix& lst) |
|
|
562 { |
|
|
563 indent (); |
|
|
564 |
|
2961
|
565 print_parens (lst, "("); |
|
2123
|
566 |
|
|
567 os << "["; |
|
4676
|
568 nesting.push ('['); |
|
2123
|
569 |
|
4219
|
570 tree_matrix::iterator p = lst.begin (); |
|
2123
|
571 |
|
4219
|
572 while (p != lst.end ()) |
|
2123
|
573 { |
|
4219
|
574 tree_argument_list *elt = *p++; |
|
2123
|
575 |
|
|
576 if (elt) |
|
|
577 { |
|
|
578 elt->accept (*this); |
|
|
579 |
|
4219
|
580 if (p != lst.end ()) |
|
2123
|
581 os << "; "; |
|
|
582 } |
|
|
583 } |
|
|
584 |
|
4676
|
585 nesting.pop (); |
|
2123
|
586 os << "]"; |
|
|
587 |
|
2961
|
588 print_parens (lst, ")"); |
|
2123
|
589 } |
|
|
590 |
|
|
591 void |
|
3351
|
592 tree_print_code::visit_cell (tree_cell& lst) |
|
|
593 { |
|
|
594 indent (); |
|
|
595 |
|
|
596 print_parens (lst, "("); |
|
|
597 |
|
|
598 os << "{"; |
|
4676
|
599 nesting.push ('{'); |
|
3351
|
600 |
|
4219
|
601 tree_cell::iterator p = lst.begin (); |
|
3351
|
602 |
|
4219
|
603 while (p != lst.end ()) |
|
3351
|
604 { |
|
4219
|
605 tree_argument_list *elt = *p++; |
|
3351
|
606 |
|
|
607 if (elt) |
|
|
608 { |
|
|
609 elt->accept (*this); |
|
|
610 |
|
4219
|
611 if (p != lst.end ()) |
|
3351
|
612 os << "; "; |
|
|
613 } |
|
|
614 } |
|
|
615 |
|
4676
|
616 nesting.pop (); |
|
3351
|
617 os << "}"; |
|
|
618 |
|
|
619 print_parens (lst, ")"); |
|
|
620 } |
|
|
621 |
|
|
622 void |
|
2969
|
623 tree_print_code::visit_multi_assignment (tree_multi_assignment& expr) |
|
2123
|
624 { |
|
|
625 indent (); |
|
|
626 |
|
2961
|
627 print_parens (expr, "("); |
|
2123
|
628 |
|
2969
|
629 tree_argument_list *lhs = expr.left_hand_side (); |
|
2123
|
630 |
|
|
631 if (lhs) |
|
|
632 { |
|
|
633 int len = lhs->length (); |
|
|
634 |
|
|
635 if (len > 1) |
|
4676
|
636 { |
|
|
637 os << "["; |
|
|
638 nesting.push ('['); |
|
|
639 } |
|
2123
|
640 |
|
|
641 lhs->accept (*this); |
|
|
642 |
|
|
643 if (len > 1) |
|
4676
|
644 { |
|
|
645 nesting.pop (); |
|
|
646 os << "]"; |
|
|
647 } |
|
2123
|
648 } |
|
|
649 |
|
3208
|
650 os << " " << expr.oper () << " "; |
|
2123
|
651 |
|
2969
|
652 tree_expression *rhs = expr.right_hand_side (); |
|
2123
|
653 |
|
|
654 if (rhs) |
|
|
655 rhs->accept (*this); |
|
|
656 |
|
2961
|
657 print_parens (expr, ")"); |
|
2123
|
658 } |
|
|
659 |
|
|
660 void |
|
2620
|
661 tree_print_code::visit_no_op_command (tree_no_op_command& cmd) |
|
|
662 { |
|
|
663 indent (); |
|
|
664 |
|
|
665 os << cmd.original_command (); |
|
|
666 } |
|
|
667 |
|
|
668 void |
|
2372
|
669 tree_print_code::visit_constant (tree_constant& val) |
|
2123
|
670 { |
|
|
671 indent (); |
|
|
672 |
|
2961
|
673 print_parens (val, "("); |
|
2123
|
674 |
|
2942
|
675 val.print_raw (os, true, print_original_text); |
|
2123
|
676 |
|
2961
|
677 print_parens (val, ")"); |
|
2123
|
678 } |
|
|
679 |
|
|
680 void |
|
4342
|
681 tree_print_code::visit_fcn_handle (tree_fcn_handle& fh) |
|
|
682 { |
|
|
683 indent (); |
|
|
684 |
|
|
685 print_parens (fh, "("); |
|
|
686 |
|
|
687 fh.print_raw (os, true, print_original_text); |
|
|
688 |
|
|
689 print_parens (fh, ")"); |
|
|
690 } |
|
|
691 |
|
|
692 void |
|
2123
|
693 tree_print_code::visit_parameter_list (tree_parameter_list& lst) |
|
|
694 { |
|
4219
|
695 tree_parameter_list::iterator p = lst.begin (); |
|
2123
|
696 |
|
4219
|
697 while (p != lst.end ()) |
|
2123
|
698 { |
|
4219
|
699 tree_identifier *elt = *p++; |
|
2123
|
700 |
|
|
701 if (elt) |
|
|
702 { |
|
|
703 elt->accept (*this); |
|
|
704 |
|
4219
|
705 if (p != lst.end ()) |
|
2123
|
706 os << ", "; |
|
|
707 } |
|
|
708 } |
|
|
709 } |
|
|
710 |
|
|
711 void |
|
|
712 tree_print_code::visit_postfix_expression (tree_postfix_expression& expr) |
|
|
713 { |
|
|
714 indent (); |
|
|
715 |
|
2961
|
716 print_parens (expr, "("); |
|
2123
|
717 |
|
2960
|
718 tree_expression *e = expr.operand (); |
|
2123
|
719 |
|
2960
|
720 if (e) |
|
|
721 e->accept (*this); |
|
2123
|
722 |
|
|
723 os << expr.oper (); |
|
|
724 |
|
2961
|
725 print_parens (expr, ")"); |
|
2123
|
726 } |
|
|
727 |
|
|
728 void |
|
|
729 tree_print_code::visit_prefix_expression (tree_prefix_expression& expr) |
|
|
730 { |
|
|
731 indent (); |
|
|
732 |
|
2961
|
733 print_parens (expr, "("); |
|
2123
|
734 |
|
|
735 os << expr.oper (); |
|
|
736 |
|
2960
|
737 tree_expression *e = expr.operand (); |
|
2123
|
738 |
|
2960
|
739 if (e) |
|
|
740 e->accept (*this); |
|
2123
|
741 |
|
2961
|
742 print_parens (expr, ")"); |
|
2123
|
743 } |
|
|
744 |
|
|
745 void |
|
4207
|
746 tree_print_code::visit_return_command (tree_return_command&) |
|
2123
|
747 { |
|
|
748 indent (); |
|
|
749 |
|
|
750 os << "return"; |
|
|
751 } |
|
|
752 |
|
|
753 void |
|
|
754 tree_print_code::visit_return_list (tree_return_list& lst) |
|
|
755 { |
|
4219
|
756 tree_return_list::iterator p = lst.begin (); |
|
2123
|
757 |
|
4219
|
758 while (p != lst.end ()) |
|
2123
|
759 { |
|
4219
|
760 tree_index_expression *elt = *p++; |
|
2123
|
761 |
|
|
762 if (elt) |
|
|
763 { |
|
|
764 elt->accept (*this); |
|
|
765 |
|
4219
|
766 if (p != lst.end ()) |
|
2123
|
767 os << ", "; |
|
|
768 } |
|
|
769 } |
|
|
770 } |
|
|
771 |
|
|
772 void |
|
2969
|
773 tree_print_code::visit_simple_assignment (tree_simple_assignment& expr) |
|
2123
|
774 { |
|
|
775 indent (); |
|
|
776 |
|
2961
|
777 print_parens (expr, "("); |
|
2123
|
778 |
|
2969
|
779 tree_expression *lhs = expr.left_hand_side (); |
|
2123
|
780 |
|
2969
|
781 if (lhs) |
|
|
782 lhs->accept (*this); |
|
2123
|
783 |
|
2969
|
784 os << " " << expr.oper () << " "; |
|
2123
|
785 |
|
|
786 tree_expression *rhs = expr.right_hand_side (); |
|
|
787 |
|
|
788 if (rhs) |
|
|
789 rhs->accept (*this); |
|
|
790 |
|
2961
|
791 print_parens (expr, ")"); |
|
2123
|
792 } |
|
|
793 |
|
|
794 void |
|
|
795 tree_print_code::visit_statement (tree_statement& stmt) |
|
|
796 { |
|
3665
|
797 print_comment_list (stmt.comment_text ()); |
|
|
798 |
|
2123
|
799 tree_command *cmd = stmt.command (); |
|
|
800 |
|
|
801 if (cmd) |
|
|
802 { |
|
|
803 cmd->accept (*this); |
|
|
804 |
|
|
805 if (! stmt.print_result ()) |
|
4980
|
806 { |
|
|
807 os << ";"; |
|
|
808 newline (" "); |
|
|
809 } |
|
|
810 else |
|
|
811 newline (); |
|
2123
|
812 } |
|
|
813 else |
|
|
814 { |
|
|
815 tree_expression *expr = stmt.expression (); |
|
|
816 |
|
|
817 if (expr) |
|
|
818 { |
|
|
819 expr->accept (*this); |
|
|
820 |
|
|
821 if (! stmt.print_result ()) |
|
4980
|
822 { |
|
|
823 os << ";"; |
|
|
824 newline (" "); |
|
|
825 } |
|
|
826 else |
|
|
827 newline (); |
|
2123
|
828 } |
|
|
829 } |
|
|
830 } |
|
|
831 |
|
|
832 void |
|
|
833 tree_print_code::visit_statement_list (tree_statement_list& lst) |
|
|
834 { |
|
4219
|
835 for (tree_statement_list::iterator p = lst.begin (); p != lst.end (); p++) |
|
2123
|
836 { |
|
4219
|
837 tree_statement *elt = *p; |
|
2123
|
838 |
|
|
839 if (elt) |
|
|
840 elt->accept (*this); |
|
|
841 } |
|
|
842 } |
|
|
843 |
|
|
844 void |
|
2846
|
845 tree_print_code::visit_switch_case (tree_switch_case& cs) |
|
|
846 { |
|
3665
|
847 print_comment_list (cs.leading_comment ()); |
|
|
848 |
|
2846
|
849 indent (); |
|
|
850 |
|
|
851 if (cs.is_default_case ()) |
|
|
852 os << "otherwise"; |
|
|
853 else |
|
|
854 os << "case "; |
|
|
855 |
|
|
856 tree_expression *label = cs.case_label (); |
|
|
857 |
|
|
858 if (label) |
|
|
859 label->accept (*this); |
|
|
860 |
|
|
861 newline (); |
|
|
862 |
|
|
863 tree_statement_list *list = cs.commands (); |
|
|
864 |
|
|
865 if (list) |
|
|
866 { |
|
3665
|
867 increment_indent_level (); |
|
|
868 |
|
2846
|
869 list->accept (*this); |
|
|
870 |
|
3665
|
871 newline (); |
|
|
872 |
|
2846
|
873 decrement_indent_level (); |
|
|
874 } |
|
|
875 } |
|
|
876 |
|
|
877 void |
|
|
878 tree_print_code::visit_switch_case_list (tree_switch_case_list& lst) |
|
|
879 { |
|
4219
|
880 tree_switch_case_list::iterator p = lst.begin (); |
|
2846
|
881 |
|
4219
|
882 while (p != lst.end ()) |
|
2846
|
883 { |
|
4219
|
884 tree_switch_case *elt = *p++; |
|
2846
|
885 |
|
|
886 if (elt) |
|
|
887 elt->accept (*this); |
|
|
888 } |
|
|
889 } |
|
|
890 |
|
|
891 void |
|
|
892 tree_print_code::visit_switch_command (tree_switch_command& cmd) |
|
|
893 { |
|
3665
|
894 print_comment_list (cmd.leading_comment ()); |
|
|
895 |
|
2846
|
896 indent (); |
|
|
897 |
|
|
898 os << "switch "; |
|
|
899 |
|
|
900 tree_expression *expr = cmd.switch_value (); |
|
|
901 |
|
|
902 if (expr) |
|
|
903 expr->accept (*this); |
|
|
904 |
|
|
905 newline (); |
|
|
906 |
|
|
907 tree_switch_case_list *list = cmd.case_list (); |
|
|
908 |
|
|
909 if (list) |
|
3665
|
910 { |
|
|
911 increment_indent_level (); |
|
|
912 |
|
|
913 list->accept (*this); |
|
|
914 |
|
|
915 decrement_indent_level (); |
|
|
916 } |
|
|
917 |
|
|
918 print_indented_comment (cmd.leading_comment ()); |
|
2846
|
919 |
|
|
920 indent (); |
|
|
921 |
|
|
922 os << "endswitch"; |
|
|
923 } |
|
|
924 |
|
|
925 void |
|
2123
|
926 tree_print_code::visit_try_catch_command (tree_try_catch_command& cmd) |
|
|
927 { |
|
3665
|
928 print_comment_list (cmd.leading_comment ()); |
|
|
929 |
|
2123
|
930 indent (); |
|
|
931 |
|
3665
|
932 os << "try"; |
|
2123
|
933 |
|
|
934 newline (); |
|
|
935 |
|
|
936 tree_statement_list *try_code = cmd.body (); |
|
|
937 |
|
|
938 if (try_code) |
|
|
939 { |
|
|
940 increment_indent_level (); |
|
3665
|
941 |
|
2123
|
942 try_code->accept (*this); |
|
3665
|
943 |
|
2123
|
944 decrement_indent_level (); |
|
|
945 } |
|
|
946 |
|
3665
|
947 print_indented_comment (cmd.middle_comment ()); |
|
|
948 |
|
2123
|
949 indent (); |
|
|
950 |
|
|
951 os << "catch"; |
|
|
952 |
|
|
953 newline (); |
|
|
954 |
|
|
955 tree_statement_list *catch_code = cmd.cleanup (); |
|
|
956 |
|
|
957 if (catch_code) |
|
|
958 { |
|
|
959 increment_indent_level (); |
|
3665
|
960 |
|
2123
|
961 catch_code->accept (*this); |
|
3665
|
962 |
|
2123
|
963 decrement_indent_level (); |
|
|
964 } |
|
|
965 |
|
3665
|
966 print_indented_comment (cmd.trailing_comment ()); |
|
|
967 |
|
2123
|
968 indent (); |
|
|
969 |
|
|
970 os << "end_try_catch"; |
|
|
971 } |
|
|
972 |
|
|
973 void |
|
|
974 tree_print_code::visit_unwind_protect_command |
|
|
975 (tree_unwind_protect_command& cmd) |
|
|
976 { |
|
3665
|
977 print_comment_list (cmd.leading_comment ()); |
|
|
978 |
|
2123
|
979 indent (); |
|
|
980 |
|
|
981 os << "unwind_protect"; |
|
|
982 |
|
|
983 newline (); |
|
|
984 |
|
|
985 tree_statement_list *unwind_protect_code = cmd.body (); |
|
|
986 |
|
|
987 if (unwind_protect_code) |
|
|
988 { |
|
|
989 increment_indent_level (); |
|
3665
|
990 |
|
2123
|
991 unwind_protect_code->accept (*this); |
|
3665
|
992 |
|
2123
|
993 decrement_indent_level (); |
|
|
994 } |
|
|
995 |
|
3665
|
996 print_indented_comment (cmd.middle_comment ()); |
|
|
997 |
|
2123
|
998 indent (); |
|
|
999 |
|
3478
|
1000 os << "unwind_protect_cleanup"; |
|
2123
|
1001 |
|
|
1002 newline (); |
|
|
1003 |
|
|
1004 tree_statement_list *cleanup_code = cmd.cleanup (); |
|
|
1005 |
|
|
1006 if (cleanup_code) |
|
|
1007 { |
|
|
1008 increment_indent_level (); |
|
3665
|
1009 |
|
2123
|
1010 cleanup_code->accept (*this); |
|
3665
|
1011 |
|
2123
|
1012 decrement_indent_level (); |
|
|
1013 } |
|
|
1014 |
|
3665
|
1015 print_indented_comment (cmd.trailing_comment ()); |
|
|
1016 |
|
2123
|
1017 indent (); |
|
|
1018 |
|
|
1019 os << "end_unwind_protect"; |
|
|
1020 } |
|
|
1021 |
|
|
1022 void |
|
|
1023 tree_print_code::visit_while_command (tree_while_command& cmd) |
|
|
1024 { |
|
3665
|
1025 print_comment_list (cmd.leading_comment ()); |
|
|
1026 |
|
2123
|
1027 indent (); |
|
|
1028 |
|
|
1029 os << "while "; |
|
|
1030 |
|
|
1031 tree_expression *expr = cmd.condition (); |
|
|
1032 |
|
|
1033 if (expr) |
|
|
1034 expr->accept (*this); |
|
|
1035 |
|
|
1036 newline (); |
|
|
1037 |
|
|
1038 tree_statement_list *list = cmd.body (); |
|
|
1039 |
|
|
1040 if (list) |
|
|
1041 { |
|
|
1042 increment_indent_level (); |
|
3665
|
1043 |
|
2123
|
1044 list->accept (*this); |
|
3665
|
1045 |
|
2123
|
1046 decrement_indent_level (); |
|
|
1047 } |
|
|
1048 |
|
3665
|
1049 print_indented_comment (cmd.trailing_comment ()); |
|
|
1050 |
|
2123
|
1051 indent (); |
|
|
1052 |
|
|
1053 os << "endwhile"; |
|
|
1054 } |
|
|
1055 |
|
3484
|
1056 void |
|
|
1057 tree_print_code::visit_do_until_command (tree_do_until_command& cmd) |
|
|
1058 { |
|
3665
|
1059 print_comment_list (cmd.leading_comment ()); |
|
|
1060 |
|
3484
|
1061 indent (); |
|
|
1062 |
|
|
1063 os << "do"; |
|
|
1064 |
|
|
1065 newline (); |
|
|
1066 |
|
|
1067 tree_statement_list *list = cmd.body (); |
|
|
1068 |
|
|
1069 if (list) |
|
|
1070 { |
|
|
1071 increment_indent_level (); |
|
3665
|
1072 |
|
3484
|
1073 list->accept (*this); |
|
3665
|
1074 |
|
3484
|
1075 decrement_indent_level (); |
|
|
1076 } |
|
|
1077 |
|
3665
|
1078 print_indented_comment (cmd.trailing_comment ()); |
|
|
1079 |
|
3484
|
1080 indent (); |
|
|
1081 |
|
|
1082 os << "until"; |
|
|
1083 |
|
|
1084 tree_expression *expr = cmd.condition (); |
|
|
1085 |
|
|
1086 if (expr) |
|
|
1087 expr->accept (*this); |
|
|
1088 |
|
|
1089 newline (); |
|
|
1090 } |
|
|
1091 |
|
2123
|
1092 // Each print_code() function should call this before printing |
|
|
1093 // anything. |
|
|
1094 // |
|
|
1095 // This doesn't need to be fast, but isn't there a better way? |
|
|
1096 |
|
|
1097 void |
|
|
1098 tree_print_code::indent (void) |
|
|
1099 { |
|
|
1100 assert (curr_print_indent_level >= 0); |
|
2900
|
1101 |
|
4980
|
1102 if (printing_newlines) |
|
|
1103 { |
|
|
1104 if (beginning_of_line) |
|
|
1105 { |
|
|
1106 os << prefix; |
|
2900
|
1107 |
|
4980
|
1108 for (int i = 0; i < curr_print_indent_level; i++) |
|
|
1109 os << " "; |
|
|
1110 |
|
|
1111 beginning_of_line = false; |
|
|
1112 } |
|
2123
|
1113 } |
|
|
1114 } |
|
|
1115 |
|
|
1116 // All print_code() functions should use this to print new lines. |
|
|
1117 |
|
|
1118 void |
|
4980
|
1119 tree_print_code::newline (const char *alt_txt) |
|
2123
|
1120 { |
|
4980
|
1121 os << (printing_newlines ? "\n" : alt_txt); |
|
2123
|
1122 |
|
|
1123 beginning_of_line = true; |
|
|
1124 } |
|
|
1125 |
|
|
1126 // For ressetting print_code state. |
|
|
1127 |
|
|
1128 void |
|
|
1129 tree_print_code::reset (void) |
|
|
1130 { |
|
|
1131 beginning_of_line = true; |
|
|
1132 curr_print_indent_level = 0; |
|
4676
|
1133 while (nesting.top () != 'n') |
|
|
1134 nesting.pop (); |
|
2123
|
1135 } |
|
|
1136 |
|
2961
|
1137 void |
|
|
1138 tree_print_code::print_parens (const tree_expression& expr, const char *txt) |
|
|
1139 { |
|
|
1140 int n = expr.paren_count (); |
|
|
1141 |
|
|
1142 for (int i = 0; i < n; i++) |
|
|
1143 os << txt; |
|
|
1144 } |
|
|
1145 |
|
3665
|
1146 void |
|
|
1147 tree_print_code::print_comment_elt (const octave_comment_elt& elt) |
|
|
1148 { |
|
|
1149 bool printed_something = false; |
|
|
1150 |
|
|
1151 bool prev_char_was_newline = false; |
|
|
1152 |
|
3769
|
1153 std::string comment = elt.text (); |
|
3665
|
1154 |
|
|
1155 size_t len = comment.length (); |
|
|
1156 |
|
|
1157 size_t i = 0; |
|
|
1158 |
|
|
1159 while (i < len && comment[i++] == '\n') |
|
|
1160 ; /* Skip leading new lines. */ |
|
|
1161 i--; |
|
|
1162 |
|
|
1163 while (i < len) |
|
|
1164 { |
|
|
1165 char c = comment[i++]; |
|
|
1166 |
|
|
1167 if (c == '\n') |
|
|
1168 { |
|
|
1169 if (prev_char_was_newline) |
|
|
1170 os << "##"; |
|
|
1171 |
|
|
1172 newline (); |
|
|
1173 |
|
|
1174 prev_char_was_newline = true; |
|
|
1175 } |
|
|
1176 else |
|
|
1177 { |
|
|
1178 if (beginning_of_line) |
|
|
1179 { |
|
|
1180 printed_something = true; |
|
|
1181 |
|
|
1182 indent (); |
|
|
1183 |
|
|
1184 os << "##"; |
|
|
1185 |
|
|
1186 if (! (isspace (c) || c == '!')) |
|
|
1187 os << " "; |
|
|
1188 } |
|
|
1189 |
|
|
1190 os << (char) c; |
|
|
1191 |
|
|
1192 prev_char_was_newline = false; |
|
|
1193 } |
|
|
1194 } |
|
|
1195 |
|
|
1196 if (printed_something && ! beginning_of_line) |
|
|
1197 newline (); |
|
|
1198 } |
|
|
1199 |
|
|
1200 void |
|
|
1201 tree_print_code::print_comment_list (octave_comment_list *comment_list) |
|
|
1202 { |
|
|
1203 if (comment_list) |
|
|
1204 { |
|
4219
|
1205 octave_comment_list::iterator p = comment_list->begin (); |
|
3665
|
1206 |
|
4219
|
1207 while (p != comment_list->end ()) |
|
3665
|
1208 { |
|
4219
|
1209 octave_comment_elt elt = *p++; |
|
3665
|
1210 |
|
|
1211 print_comment_elt (elt); |
|
|
1212 |
|
4219
|
1213 if (p != comment_list->end ()) |
|
3665
|
1214 newline (); |
|
|
1215 } |
|
|
1216 } |
|
|
1217 } |
|
|
1218 |
|
|
1219 void |
|
|
1220 tree_print_code::print_indented_comment (octave_comment_list *comment_list) |
|
|
1221 { |
|
|
1222 increment_indent_level (); |
|
|
1223 |
|
|
1224 print_comment_list (comment_list); |
|
|
1225 |
|
|
1226 decrement_indent_level (); |
|
|
1227 } |
|
|
1228 |
|
2123
|
1229 /* |
|
|
1230 ;;; Local Variables: *** |
|
|
1231 ;;; mode: C++ *** |
|
|
1232 ;;; End: *** |
|
|
1233 */ |
