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1 /* |
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2 |
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3 Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, |
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4 2005, 2006, 2007 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 3 of the License, or (at your |
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11 option) any 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, see |
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20 <http://www.gnu.org/licenses/>. |
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21 |
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22 */ |
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23 |
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24 #ifdef HAVE_CONFIG_H |
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25 #include <config.h> |
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26 #endif |
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27 |
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28 #include <cctype> |
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29 |
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30 #include <iostream> |
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31 |
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32 #include "comment-list.h" |
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33 #include "error.h" |
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34 #include "ov-usr-fcn.h" |
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35 #include "pr-output.h" |
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36 #include "pt-all.h" |
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37 |
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38 void |
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39 tree_print_code::visit_anon_fcn_handle (tree_anon_fcn_handle& afh) |
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40 { |
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41 indent (); |
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42 |
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43 print_parens (afh, "("); |
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44 |
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45 os << "@("; |
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46 |
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47 tree_parameter_list *param_list = afh.parameter_list (); |
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48 |
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49 if (param_list) |
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50 param_list->accept (*this); |
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51 |
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52 os << ") "; |
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53 |
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54 tree_statement_list *body = afh.body (); |
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55 |
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56 if (body) |
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57 body->accept (*this); |
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58 |
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59 print_parens (afh, ")"); |
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60 } |
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61 |
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62 void |
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63 tree_print_code::visit_argument_list (tree_argument_list& lst) |
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64 { |
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65 tree_argument_list::iterator p = lst.begin (); |
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66 |
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67 while (p != lst.end ()) |
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68 { |
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69 tree_expression *elt = *p++; |
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70 |
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71 if (elt) |
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72 { |
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73 elt->accept (*this); |
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74 |
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75 if (p != lst.end ()) |
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76 os << ", "; |
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77 } |
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78 } |
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79 } |
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80 |
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81 void |
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82 tree_print_code::visit_binary_expression (tree_binary_expression& expr) |
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83 { |
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84 indent (); |
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85 |
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86 print_parens (expr, "("); |
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87 |
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88 tree_expression *op1 = expr.lhs (); |
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89 |
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90 if (op1) |
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91 op1->accept (*this); |
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92 |
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93 os << " " << expr.oper () << " "; |
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94 |
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95 tree_expression *op2 = expr.rhs (); |
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96 |
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97 if (op2) |
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98 op2->accept (*this); |
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99 |
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100 print_parens (expr, ")"); |
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101 } |
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102 |
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103 void |
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104 tree_print_code::visit_break_command (tree_break_command&) |
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105 { |
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106 indent (); |
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107 |
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108 os << "break"; |
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109 } |
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110 |
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111 void |
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112 tree_print_code::visit_colon_expression (tree_colon_expression& expr) |
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113 { |
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114 indent (); |
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115 |
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116 print_parens (expr, "("); |
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117 |
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118 tree_expression *op1 = expr.base (); |
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119 |
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120 if (op1) |
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121 op1->accept (*this); |
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122 |
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123 // Stupid syntax. |
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124 |
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125 tree_expression *op3 = expr.increment (); |
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126 |
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127 if (op3) |
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128 { |
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129 os << ":"; |
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130 op3->accept (*this); |
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131 } |
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132 |
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133 tree_expression *op2 = expr.limit (); |
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134 |
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135 if (op2) |
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136 { |
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137 os << ":"; |
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138 op2->accept (*this); |
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139 } |
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140 |
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141 print_parens (expr, ")"); |
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142 } |
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143 |
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144 void |
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145 tree_print_code::visit_continue_command (tree_continue_command&) |
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146 { |
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147 indent (); |
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148 |
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149 os << "continue"; |
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150 } |
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151 |
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152 void |
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153 tree_print_code::visit_decl_command (tree_decl_command& cmd) |
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154 { |
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155 indent (); |
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156 |
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157 os << cmd.name () << " "; |
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158 |
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159 tree_decl_init_list *init_list = cmd.initializer_list (); |
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160 |
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161 if (init_list) |
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162 init_list->accept (*this); |
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163 } |
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164 |
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165 void |
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166 tree_print_code::visit_decl_elt (tree_decl_elt& cmd) |
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167 { |
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168 tree_identifier *id = cmd.ident (); |
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169 |
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170 if (id) |
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171 id->accept (*this); |
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172 |
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173 tree_expression *expr = cmd.expression (); |
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174 |
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175 if (expr) |
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176 { |
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177 os << " = "; |
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178 |
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179 expr->accept (*this); |
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180 } |
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181 } |
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182 |
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183 void |
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184 tree_print_code::visit_decl_init_list (tree_decl_init_list& lst) |
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185 { |
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186 tree_decl_init_list::iterator p = lst.begin (); |
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187 |
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188 while (p != lst.end ()) |
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189 { |
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190 tree_decl_elt *elt = *p++; |
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191 |
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192 if (elt) |
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193 { |
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194 elt->accept (*this); |
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195 |
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196 if (p != lst.end ()) |
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197 os << ", "; |
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198 } |
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199 } |
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200 } |
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201 |
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202 void |
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203 tree_print_code::visit_simple_for_command (tree_simple_for_command& cmd) |
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204 { |
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205 print_comment_list (cmd.leading_comment ()); |
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206 |
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207 indent (); |
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208 |
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209 os << "for "; |
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210 |
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211 tree_expression *lhs = cmd.left_hand_side (); |
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212 |
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213 if (lhs) |
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214 lhs->accept (*this); |
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215 |
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216 os << " = "; |
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217 |
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218 tree_expression *expr = cmd.control_expr (); |
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219 |
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220 if (expr) |
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221 expr->accept (*this); |
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222 |
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223 newline (); |
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224 |
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225 tree_statement_list *list = cmd.body (); |
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226 |
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227 if (list) |
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228 { |
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229 increment_indent_level (); |
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230 |
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231 list->accept (*this); |
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232 |
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233 decrement_indent_level (); |
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234 } |
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235 |
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236 print_indented_comment (cmd.trailing_comment ()); |
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237 |
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238 indent (); |
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239 |
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240 os << "endfor"; |
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241 } |
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242 |
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243 void |
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244 tree_print_code::visit_complex_for_command (tree_complex_for_command& cmd) |
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245 { |
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246 print_comment_list (cmd.leading_comment ()); |
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247 |
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248 indent (); |
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249 |
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250 os << "for ["; |
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251 nesting.push ('['); |
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252 |
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253 tree_argument_list *lhs = cmd.left_hand_side (); |
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254 |
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255 if (lhs) |
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256 lhs->accept (*this); |
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257 |
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258 nesting.pop (); |
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259 os << "] = "; |
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260 |
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261 tree_expression *expr = cmd.control_expr (); |
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262 |
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263 if (expr) |
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264 expr->accept (*this); |
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265 |
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266 newline (); |
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267 |
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268 tree_statement_list *list = cmd.body (); |
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269 |
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270 if (list) |
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271 { |
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272 increment_indent_level (); |
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273 |
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274 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 print_indented_comment (cmd.trailing_comment ()); |
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280 |
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281 indent (); |
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282 |
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283 os << "endfor"; |
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284 } |
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285 |
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286 void |
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287 tree_print_code::visit_octave_user_function (octave_user_function& fcn) |
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288 { |
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289 reset (); |
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290 |
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291 visit_octave_user_function_header (fcn); |
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292 |
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293 tree_statement_list *cmd_list = fcn.body (); |
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294 |
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295 if (cmd_list) |
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296 { |
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297 increment_indent_level (); |
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298 |
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299 cmd_list->accept (*this); |
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300 |
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301 decrement_indent_level (); |
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302 } |
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303 |
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304 visit_octave_user_function_trailer (fcn); |
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305 } |
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306 |
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307 void |
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308 tree_print_code::visit_octave_user_function_header (octave_user_function& fcn) |
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309 { |
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310 octave_comment_list *leading_comment = fcn.leading_comment (); |
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311 |
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312 if (leading_comment) |
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313 { |
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314 print_comment_list (leading_comment); |
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315 newline (); |
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316 } |
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317 |
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318 indent (); |
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319 |
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320 os << "function "; |
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321 |
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322 tree_parameter_list *ret_list = fcn.return_list (); |
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323 |
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324 if (ret_list) |
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325 { |
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326 bool takes_var_return = fcn.takes_var_return (); |
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327 |
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328 int len = ret_list->length (); |
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329 |
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330 if (len > 1 || takes_var_return) |
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331 { |
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332 os << "["; |
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333 nesting.push ('['); |
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334 } |
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335 |
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336 ret_list->accept (*this); |
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337 |
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338 if (takes_var_return) |
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339 { |
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340 if (len > 0) |
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341 os << ", "; |
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342 |
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343 os << "varargout"; |
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344 } |
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345 |
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346 if (len > 1 || takes_var_return) |
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347 { |
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348 nesting.pop (); |
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349 os << "]"; |
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350 } |
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351 |
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352 os << " = "; |
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353 } |
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354 |
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355 std::string fcn_name = fcn.name (); |
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356 |
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357 os << (fcn_name.empty () ? std::string ("(empty)") : fcn_name) << " "; |
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358 |
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359 tree_parameter_list *param_list = fcn.parameter_list (); |
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360 |
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361 if (param_list) |
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362 { |
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363 bool takes_varargs = fcn.takes_varargs (); |
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364 |
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365 int len = param_list->length (); |
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366 |
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367 if (len > 0 || takes_varargs) |
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368 { |
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369 os << "("; |
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370 nesting.push ('('); |
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371 } |
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372 |
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373 param_list->accept (*this); |
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374 |
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375 if (takes_varargs) |
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376 { |
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377 if (len > 0) |
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378 os << ", "; |
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379 |
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380 os << "varargin"; |
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381 } |
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382 |
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383 if (len > 0 || takes_varargs) |
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384 { |
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385 nesting.pop (); |
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386 os << ")"; |
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387 newline (); |
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388 } |
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389 } |
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390 else |
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391 { |
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392 os << "()"; |
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393 newline (); |
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394 } |
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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_octave_user_function_trailer (octave_user_function& fcn) |
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399 { |
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400 print_indented_comment (fcn.trailing_comment ()); |
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401 |
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402 indent (); |
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403 |
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404 os << "endfunction"; |
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405 |
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406 newline (); |
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407 } |
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408 |
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409 void |
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410 tree_print_code::visit_identifier (tree_identifier& id) |
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411 { |
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412 indent (); |
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413 |
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414 print_parens (id, "("); |
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415 |
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416 std::string nm = id.name (); |
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417 os << (nm.empty () ? std::string ("(empty)") : nm); |
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418 |
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419 print_parens (id, ")"); |
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420 } |
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421 |
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422 void |
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423 tree_print_code::visit_if_clause (tree_if_clause& cmd) |
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424 { |
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425 tree_expression *expr = cmd.condition (); |
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426 |
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427 if (expr) |
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428 expr->accept (*this); |
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429 |
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430 newline (); |
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431 |
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432 tree_statement_list *list = cmd.commands (); |
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433 |
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434 if (list) |
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435 { |
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436 increment_indent_level (); |
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437 |
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438 list->accept (*this); |
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439 |
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440 decrement_indent_level (); |
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441 } |
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442 } |
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443 |
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444 void |
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445 tree_print_code::visit_if_command (tree_if_command& cmd) |
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446 { |
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447 print_comment_list (cmd.leading_comment ()); |
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448 |
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449 indent (); |
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450 |
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451 os << "if "; |
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452 |
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453 tree_if_command_list *list = cmd.cmd_list (); |
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454 |
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455 if (list) |
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456 list->accept (*this); |
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457 |
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458 print_indented_comment (cmd.trailing_comment ()); |
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459 |
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460 indent (); |
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461 |
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462 os << "endif"; |
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463 } |
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464 |
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465 void |
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466 tree_print_code::visit_if_command_list (tree_if_command_list& lst) |
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467 { |
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468 tree_if_command_list::iterator p = lst.begin (); |
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469 |
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470 bool first_elt = true; |
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471 |
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472 while (p != lst.end ()) |
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473 { |
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474 tree_if_clause *elt = *p++; |
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475 |
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476 if (elt) |
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477 { |
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478 if (! first_elt) |
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479 { |
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480 print_indented_comment (elt->leading_comment ()); |
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481 |
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482 indent (); |
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483 |
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484 if (elt->is_else_clause ()) |
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485 os << "else"; |
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486 else |
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487 os << "elseif "; |
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488 } |
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489 |
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490 elt->accept (*this); |
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491 } |
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492 |
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493 first_elt = false; |
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494 } |
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495 } |
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496 |
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497 void |
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498 tree_print_code::visit_index_expression (tree_index_expression& expr) |
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499 { |
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500 indent (); |
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501 |
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2961
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502 print_parens (expr, "("); |
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2123
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503 |
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3665
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504 bool expr_has_parens = false; |
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505 |
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3010
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506 tree_expression *e = expr.expression (); |
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2123
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507 |
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2969
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508 if (e) |
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3665
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509 { |
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510 e->accept (*this); |
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511 |
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512 expr_has_parens = e->is_postfix_indexed (); |
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513 } |
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2123
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514 |
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4219
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515 std::list<tree_argument_list *> arg_lists = expr.arg_lists (); |
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3933
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516 std::string type_tags = expr.type_tags (); |
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4219
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517 std::list<string_vector> arg_names = expr.arg_names (); |
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2123
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518 |
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3933
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519 int n = type_tags.length (); |
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520 |
|
4219
|
521 std::list<tree_argument_list *>::iterator p_arg_lists = arg_lists.begin (); |
|
|
522 std::list<string_vector>::iterator p_arg_names = arg_names.begin (); |
|
3933
|
523 |
|
|
524 for (int i = 0; i < n; i++) |
|
2123
|
525 { |
|
3933
|
526 switch (type_tags[i]) |
|
|
527 { |
|
|
528 case '(': |
|
|
529 { |
|
4676
|
530 char nc = nesting.top (); |
|
|
531 if ((nc == '[' || nc == '{') && expr.paren_count () == 0) |
|
|
532 os << "("; |
|
|
533 else |
|
|
534 os << " ("; |
|
|
535 nesting.push ('('); |
|
|
536 |
|
4219
|
537 tree_argument_list *l = *p_arg_lists; |
|
3933
|
538 if (l) |
|
|
539 l->accept (*this); |
|
4676
|
540 |
|
|
541 nesting.pop (); |
|
3933
|
542 os << ")"; |
|
|
543 } |
|
|
544 break; |
|
|
545 |
|
|
546 case '{': |
|
|
547 { |
|
4676
|
548 char nc = nesting.top (); |
|
|
549 if ((nc == '[' || nc == '{') && expr.paren_count () == 0) |
|
|
550 os << "{"; |
|
|
551 else |
|
|
552 os << " {"; |
|
|
553 // We only care about whitespace inside [] and {} when we |
|
|
554 // are defining matrix and cell objects, not when indexing. |
|
|
555 nesting.push ('('); |
|
|
556 |
|
4219
|
557 tree_argument_list *l = *p_arg_lists; |
|
3933
|
558 if (l) |
|
|
559 l->accept (*this); |
|
4676
|
560 |
|
|
561 nesting.pop (); |
|
3933
|
562 os << "}"; |
|
|
563 } |
|
|
564 break; |
|
|
565 |
|
|
566 case '.': |
|
|
567 { |
|
4219
|
568 string_vector nm = *p_arg_names; |
|
3933
|
569 assert (nm.length () == 1); |
|
|
570 os << "." << nm(0); |
|
|
571 } |
|
|
572 break; |
|
|
573 |
|
|
574 default: |
|
|
575 panic_impossible (); |
|
|
576 } |
|
|
577 |
|
4219
|
578 p_arg_lists++; |
|
|
579 p_arg_names++; |
|
3930
|
580 } |
|
2123
|
581 |
|
2961
|
582 print_parens (expr, ")"); |
|
2123
|
583 } |
|
|
584 |
|
|
585 void |
|
|
586 tree_print_code::visit_matrix (tree_matrix& lst) |
|
|
587 { |
|
|
588 indent (); |
|
|
589 |
|
2961
|
590 print_parens (lst, "("); |
|
2123
|
591 |
|
|
592 os << "["; |
|
4676
|
593 nesting.push ('['); |
|
2123
|
594 |
|
4219
|
595 tree_matrix::iterator p = lst.begin (); |
|
2123
|
596 |
|
4219
|
597 while (p != lst.end ()) |
|
2123
|
598 { |
|
4219
|
599 tree_argument_list *elt = *p++; |
|
2123
|
600 |
|
|
601 if (elt) |
|
|
602 { |
|
|
603 elt->accept (*this); |
|
|
604 |
|
4219
|
605 if (p != lst.end ()) |
|
2123
|
606 os << "; "; |
|
|
607 } |
|
|
608 } |
|
|
609 |
|
4676
|
610 nesting.pop (); |
|
2123
|
611 os << "]"; |
|
|
612 |
|
2961
|
613 print_parens (lst, ")"); |
|
2123
|
614 } |
|
|
615 |
|
|
616 void |
|
3351
|
617 tree_print_code::visit_cell (tree_cell& lst) |
|
|
618 { |
|
|
619 indent (); |
|
|
620 |
|
|
621 print_parens (lst, "("); |
|
|
622 |
|
|
623 os << "{"; |
|
4676
|
624 nesting.push ('{'); |
|
3351
|
625 |
|
4219
|
626 tree_cell::iterator p = lst.begin (); |
|
3351
|
627 |
|
4219
|
628 while (p != lst.end ()) |
|
3351
|
629 { |
|
4219
|
630 tree_argument_list *elt = *p++; |
|
3351
|
631 |
|
|
632 if (elt) |
|
|
633 { |
|
|
634 elt->accept (*this); |
|
|
635 |
|
4219
|
636 if (p != lst.end ()) |
|
3351
|
637 os << "; "; |
|
|
638 } |
|
|
639 } |
|
|
640 |
|
4676
|
641 nesting.pop (); |
|
3351
|
642 os << "}"; |
|
|
643 |
|
|
644 print_parens (lst, ")"); |
|
|
645 } |
|
|
646 |
|
|
647 void |
|
2969
|
648 tree_print_code::visit_multi_assignment (tree_multi_assignment& expr) |
|
2123
|
649 { |
|
|
650 indent (); |
|
|
651 |
|
2961
|
652 print_parens (expr, "("); |
|
2123
|
653 |
|
2969
|
654 tree_argument_list *lhs = expr.left_hand_side (); |
|
2123
|
655 |
|
|
656 if (lhs) |
|
|
657 { |
|
|
658 int len = lhs->length (); |
|
|
659 |
|
|
660 if (len > 1) |
|
4676
|
661 { |
|
|
662 os << "["; |
|
|
663 nesting.push ('['); |
|
|
664 } |
|
2123
|
665 |
|
|
666 lhs->accept (*this); |
|
|
667 |
|
|
668 if (len > 1) |
|
4676
|
669 { |
|
|
670 nesting.pop (); |
|
|
671 os << "]"; |
|
|
672 } |
|
2123
|
673 } |
|
|
674 |
|
3208
|
675 os << " " << expr.oper () << " "; |
|
2123
|
676 |
|
2969
|
677 tree_expression *rhs = expr.right_hand_side (); |
|
2123
|
678 |
|
|
679 if (rhs) |
|
|
680 rhs->accept (*this); |
|
|
681 |
|
2961
|
682 print_parens (expr, ")"); |
|
2123
|
683 } |
|
|
684 |
|
|
685 void |
|
2620
|
686 tree_print_code::visit_no_op_command (tree_no_op_command& cmd) |
|
|
687 { |
|
|
688 indent (); |
|
|
689 |
|
|
690 os << cmd.original_command (); |
|
|
691 } |
|
|
692 |
|
|
693 void |
|
2372
|
694 tree_print_code::visit_constant (tree_constant& val) |
|
2123
|
695 { |
|
|
696 indent (); |
|
|
697 |
|
2961
|
698 print_parens (val, "("); |
|
2123
|
699 |
|
2942
|
700 val.print_raw (os, true, print_original_text); |
|
2123
|
701 |
|
2961
|
702 print_parens (val, ")"); |
|
2123
|
703 } |
|
|
704 |
|
|
705 void |
|
4342
|
706 tree_print_code::visit_fcn_handle (tree_fcn_handle& fh) |
|
|
707 { |
|
|
708 indent (); |
|
|
709 |
|
|
710 print_parens (fh, "("); |
|
|
711 |
|
|
712 fh.print_raw (os, true, print_original_text); |
|
|
713 |
|
|
714 print_parens (fh, ")"); |
|
|
715 } |
|
|
716 |
|
|
717 void |
|
2123
|
718 tree_print_code::visit_parameter_list (tree_parameter_list& lst) |
|
|
719 { |
|
4219
|
720 tree_parameter_list::iterator p = lst.begin (); |
|
2123
|
721 |
|
4219
|
722 while (p != lst.end ()) |
|
2123
|
723 { |
|
6215
|
724 tree_decl_elt *elt = *p++; |
|
2123
|
725 |
|
|
726 if (elt) |
|
|
727 { |
|
|
728 elt->accept (*this); |
|
|
729 |
|
4219
|
730 if (p != lst.end ()) |
|
2123
|
731 os << ", "; |
|
|
732 } |
|
|
733 } |
|
|
734 } |
|
|
735 |
|
|
736 void |
|
|
737 tree_print_code::visit_postfix_expression (tree_postfix_expression& expr) |
|
|
738 { |
|
|
739 indent (); |
|
|
740 |
|
2961
|
741 print_parens (expr, "("); |
|
2123
|
742 |
|
2960
|
743 tree_expression *e = expr.operand (); |
|
2123
|
744 |
|
2960
|
745 if (e) |
|
|
746 e->accept (*this); |
|
2123
|
747 |
|
|
748 os << expr.oper (); |
|
|
749 |
|
2961
|
750 print_parens (expr, ")"); |
|
2123
|
751 } |
|
|
752 |
|
|
753 void |
|
|
754 tree_print_code::visit_prefix_expression (tree_prefix_expression& expr) |
|
|
755 { |
|
|
756 indent (); |
|
|
757 |
|
2961
|
758 print_parens (expr, "("); |
|
2123
|
759 |
|
|
760 os << expr.oper (); |
|
|
761 |
|
2960
|
762 tree_expression *e = expr.operand (); |
|
2123
|
763 |
|
2960
|
764 if (e) |
|
|
765 e->accept (*this); |
|
2123
|
766 |
|
2961
|
767 print_parens (expr, ")"); |
|
2123
|
768 } |
|
|
769 |
|
|
770 void |
|
4207
|
771 tree_print_code::visit_return_command (tree_return_command&) |
|
2123
|
772 { |
|
|
773 indent (); |
|
|
774 |
|
|
775 os << "return"; |
|
|
776 } |
|
|
777 |
|
|
778 void |
|
|
779 tree_print_code::visit_return_list (tree_return_list& lst) |
|
|
780 { |
|
4219
|
781 tree_return_list::iterator p = lst.begin (); |
|
2123
|
782 |
|
4219
|
783 while (p != lst.end ()) |
|
2123
|
784 { |
|
4219
|
785 tree_index_expression *elt = *p++; |
|
2123
|
786 |
|
|
787 if (elt) |
|
|
788 { |
|
|
789 elt->accept (*this); |
|
|
790 |
|
4219
|
791 if (p != lst.end ()) |
|
2123
|
792 os << ", "; |
|
|
793 } |
|
|
794 } |
|
|
795 } |
|
|
796 |
|
|
797 void |
|
2969
|
798 tree_print_code::visit_simple_assignment (tree_simple_assignment& expr) |
|
2123
|
799 { |
|
|
800 indent (); |
|
|
801 |
|
2961
|
802 print_parens (expr, "("); |
|
2123
|
803 |
|
2969
|
804 tree_expression *lhs = expr.left_hand_side (); |
|
2123
|
805 |
|
2969
|
806 if (lhs) |
|
|
807 lhs->accept (*this); |
|
2123
|
808 |
|
2969
|
809 os << " " << expr.oper () << " "; |
|
2123
|
810 |
|
|
811 tree_expression *rhs = expr.right_hand_side (); |
|
|
812 |
|
|
813 if (rhs) |
|
|
814 rhs->accept (*this); |
|
|
815 |
|
2961
|
816 print_parens (expr, ")"); |
|
2123
|
817 } |
|
|
818 |
|
|
819 void |
|
|
820 tree_print_code::visit_statement (tree_statement& stmt) |
|
|
821 { |
|
3665
|
822 print_comment_list (stmt.comment_text ()); |
|
|
823 |
|
2123
|
824 tree_command *cmd = stmt.command (); |
|
|
825 |
|
|
826 if (cmd) |
|
|
827 { |
|
|
828 cmd->accept (*this); |
|
|
829 |
|
|
830 if (! stmt.print_result ()) |
|
4980
|
831 { |
|
|
832 os << ";"; |
|
|
833 newline (" "); |
|
|
834 } |
|
|
835 else |
|
|
836 newline (); |
|
2123
|
837 } |
|
|
838 else |
|
|
839 { |
|
|
840 tree_expression *expr = stmt.expression (); |
|
|
841 |
|
|
842 if (expr) |
|
|
843 { |
|
|
844 expr->accept (*this); |
|
|
845 |
|
|
846 if (! stmt.print_result ()) |
|
4980
|
847 { |
|
|
848 os << ";"; |
|
|
849 newline (" "); |
|
|
850 } |
|
|
851 else |
|
|
852 newline (); |
|
2123
|
853 } |
|
|
854 } |
|
|
855 } |
|
|
856 |
|
|
857 void |
|
|
858 tree_print_code::visit_statement_list (tree_statement_list& lst) |
|
|
859 { |
|
4219
|
860 for (tree_statement_list::iterator p = lst.begin (); p != lst.end (); p++) |
|
2123
|
861 { |
|
4219
|
862 tree_statement *elt = *p; |
|
2123
|
863 |
|
|
864 if (elt) |
|
|
865 elt->accept (*this); |
|
|
866 } |
|
|
867 } |
|
|
868 |
|
|
869 void |
|
2846
|
870 tree_print_code::visit_switch_case (tree_switch_case& cs) |
|
|
871 { |
|
3665
|
872 print_comment_list (cs.leading_comment ()); |
|
|
873 |
|
2846
|
874 indent (); |
|
|
875 |
|
|
876 if (cs.is_default_case ()) |
|
|
877 os << "otherwise"; |
|
|
878 else |
|
|
879 os << "case "; |
|
|
880 |
|
|
881 tree_expression *label = cs.case_label (); |
|
|
882 |
|
|
883 if (label) |
|
|
884 label->accept (*this); |
|
|
885 |
|
|
886 newline (); |
|
|
887 |
|
|
888 tree_statement_list *list = cs.commands (); |
|
|
889 |
|
|
890 if (list) |
|
|
891 { |
|
3665
|
892 increment_indent_level (); |
|
|
893 |
|
2846
|
894 list->accept (*this); |
|
|
895 |
|
3665
|
896 newline (); |
|
|
897 |
|
2846
|
898 decrement_indent_level (); |
|
|
899 } |
|
|
900 } |
|
|
901 |
|
|
902 void |
|
|
903 tree_print_code::visit_switch_case_list (tree_switch_case_list& lst) |
|
|
904 { |
|
4219
|
905 tree_switch_case_list::iterator p = lst.begin (); |
|
2846
|
906 |
|
4219
|
907 while (p != lst.end ()) |
|
2846
|
908 { |
|
4219
|
909 tree_switch_case *elt = *p++; |
|
2846
|
910 |
|
|
911 if (elt) |
|
|
912 elt->accept (*this); |
|
|
913 } |
|
|
914 } |
|
|
915 |
|
|
916 void |
|
|
917 tree_print_code::visit_switch_command (tree_switch_command& cmd) |
|
|
918 { |
|
3665
|
919 print_comment_list (cmd.leading_comment ()); |
|
|
920 |
|
2846
|
921 indent (); |
|
|
922 |
|
|
923 os << "switch "; |
|
|
924 |
|
|
925 tree_expression *expr = cmd.switch_value (); |
|
|
926 |
|
|
927 if (expr) |
|
|
928 expr->accept (*this); |
|
|
929 |
|
|
930 newline (); |
|
|
931 |
|
|
932 tree_switch_case_list *list = cmd.case_list (); |
|
|
933 |
|
|
934 if (list) |
|
3665
|
935 { |
|
|
936 increment_indent_level (); |
|
|
937 |
|
|
938 list->accept (*this); |
|
|
939 |
|
|
940 decrement_indent_level (); |
|
|
941 } |
|
|
942 |
|
|
943 print_indented_comment (cmd.leading_comment ()); |
|
2846
|
944 |
|
|
945 indent (); |
|
|
946 |
|
|
947 os << "endswitch"; |
|
|
948 } |
|
|
949 |
|
|
950 void |
|
2123
|
951 tree_print_code::visit_try_catch_command (tree_try_catch_command& cmd) |
|
|
952 { |
|
3665
|
953 print_comment_list (cmd.leading_comment ()); |
|
|
954 |
|
2123
|
955 indent (); |
|
|
956 |
|
3665
|
957 os << "try"; |
|
2123
|
958 |
|
|
959 newline (); |
|
|
960 |
|
|
961 tree_statement_list *try_code = cmd.body (); |
|
|
962 |
|
|
963 if (try_code) |
|
|
964 { |
|
|
965 increment_indent_level (); |
|
3665
|
966 |
|
2123
|
967 try_code->accept (*this); |
|
3665
|
968 |
|
2123
|
969 decrement_indent_level (); |
|
|
970 } |
|
|
971 |
|
3665
|
972 print_indented_comment (cmd.middle_comment ()); |
|
|
973 |
|
2123
|
974 indent (); |
|
|
975 |
|
|
976 os << "catch"; |
|
|
977 |
|
|
978 newline (); |
|
|
979 |
|
|
980 tree_statement_list *catch_code = cmd.cleanup (); |
|
|
981 |
|
|
982 if (catch_code) |
|
|
983 { |
|
|
984 increment_indent_level (); |
|
3665
|
985 |
|
2123
|
986 catch_code->accept (*this); |
|
3665
|
987 |
|
2123
|
988 decrement_indent_level (); |
|
|
989 } |
|
|
990 |
|
3665
|
991 print_indented_comment (cmd.trailing_comment ()); |
|
|
992 |
|
2123
|
993 indent (); |
|
|
994 |
|
|
995 os << "end_try_catch"; |
|
|
996 } |
|
|
997 |
|
|
998 void |
|
|
999 tree_print_code::visit_unwind_protect_command |
|
|
1000 (tree_unwind_protect_command& cmd) |
|
|
1001 { |
|
3665
|
1002 print_comment_list (cmd.leading_comment ()); |
|
|
1003 |
|
2123
|
1004 indent (); |
|
|
1005 |
|
|
1006 os << "unwind_protect"; |
|
|
1007 |
|
|
1008 newline (); |
|
|
1009 |
|
|
1010 tree_statement_list *unwind_protect_code = cmd.body (); |
|
|
1011 |
|
|
1012 if (unwind_protect_code) |
|
|
1013 { |
|
|
1014 increment_indent_level (); |
|
3665
|
1015 |
|
2123
|
1016 unwind_protect_code->accept (*this); |
|
3665
|
1017 |
|
2123
|
1018 decrement_indent_level (); |
|
|
1019 } |
|
|
1020 |
|
3665
|
1021 print_indented_comment (cmd.middle_comment ()); |
|
|
1022 |
|
2123
|
1023 indent (); |
|
|
1024 |
|
3478
|
1025 os << "unwind_protect_cleanup"; |
|
2123
|
1026 |
|
|
1027 newline (); |
|
|
1028 |
|
|
1029 tree_statement_list *cleanup_code = cmd.cleanup (); |
|
|
1030 |
|
|
1031 if (cleanup_code) |
|
|
1032 { |
|
|
1033 increment_indent_level (); |
|
3665
|
1034 |
|
2123
|
1035 cleanup_code->accept (*this); |
|
3665
|
1036 |
|
2123
|
1037 decrement_indent_level (); |
|
|
1038 } |
|
|
1039 |
|
3665
|
1040 print_indented_comment (cmd.trailing_comment ()); |
|
|
1041 |
|
2123
|
1042 indent (); |
|
|
1043 |
|
|
1044 os << "end_unwind_protect"; |
|
|
1045 } |
|
|
1046 |
|
|
1047 void |
|
|
1048 tree_print_code::visit_while_command (tree_while_command& cmd) |
|
|
1049 { |
|
3665
|
1050 print_comment_list (cmd.leading_comment ()); |
|
|
1051 |
|
2123
|
1052 indent (); |
|
|
1053 |
|
|
1054 os << "while "; |
|
|
1055 |
|
|
1056 tree_expression *expr = cmd.condition (); |
|
|
1057 |
|
|
1058 if (expr) |
|
|
1059 expr->accept (*this); |
|
|
1060 |
|
|
1061 newline (); |
|
|
1062 |
|
|
1063 tree_statement_list *list = cmd.body (); |
|
|
1064 |
|
|
1065 if (list) |
|
|
1066 { |
|
|
1067 increment_indent_level (); |
|
3665
|
1068 |
|
2123
|
1069 list->accept (*this); |
|
3665
|
1070 |
|
2123
|
1071 decrement_indent_level (); |
|
|
1072 } |
|
|
1073 |
|
3665
|
1074 print_indented_comment (cmd.trailing_comment ()); |
|
|
1075 |
|
2123
|
1076 indent (); |
|
|
1077 |
|
|
1078 os << "endwhile"; |
|
|
1079 } |
|
|
1080 |
|
3484
|
1081 void |
|
|
1082 tree_print_code::visit_do_until_command (tree_do_until_command& cmd) |
|
|
1083 { |
|
3665
|
1084 print_comment_list (cmd.leading_comment ()); |
|
|
1085 |
|
3484
|
1086 indent (); |
|
|
1087 |
|
|
1088 os << "do"; |
|
|
1089 |
|
|
1090 newline (); |
|
|
1091 |
|
|
1092 tree_statement_list *list = cmd.body (); |
|
|
1093 |
|
|
1094 if (list) |
|
|
1095 { |
|
|
1096 increment_indent_level (); |
|
3665
|
1097 |
|
3484
|
1098 list->accept (*this); |
|
3665
|
1099 |
|
3484
|
1100 decrement_indent_level (); |
|
|
1101 } |
|
|
1102 |
|
3665
|
1103 print_indented_comment (cmd.trailing_comment ()); |
|
|
1104 |
|
3484
|
1105 indent (); |
|
|
1106 |
|
|
1107 os << "until"; |
|
|
1108 |
|
|
1109 tree_expression *expr = cmd.condition (); |
|
|
1110 |
|
|
1111 if (expr) |
|
|
1112 expr->accept (*this); |
|
|
1113 |
|
|
1114 newline (); |
|
|
1115 } |
|
|
1116 |
|
2123
|
1117 // Each print_code() function should call this before printing |
|
|
1118 // anything. |
|
|
1119 // |
|
|
1120 // This doesn't need to be fast, but isn't there a better way? |
|
|
1121 |
|
|
1122 void |
|
|
1123 tree_print_code::indent (void) |
|
|
1124 { |
|
|
1125 assert (curr_print_indent_level >= 0); |
|
2900
|
1126 |
|
4980
|
1127 if (printing_newlines) |
|
|
1128 { |
|
|
1129 if (beginning_of_line) |
|
|
1130 { |
|
|
1131 os << prefix; |
|
2900
|
1132 |
|
4980
|
1133 for (int i = 0; i < curr_print_indent_level; i++) |
|
|
1134 os << " "; |
|
|
1135 |
|
|
1136 beginning_of_line = false; |
|
|
1137 } |
|
2123
|
1138 } |
|
|
1139 } |
|
|
1140 |
|
|
1141 // All print_code() functions should use this to print new lines. |
|
|
1142 |
|
|
1143 void |
|
4980
|
1144 tree_print_code::newline (const char *alt_txt) |
|
2123
|
1145 { |
|
4980
|
1146 os << (printing_newlines ? "\n" : alt_txt); |
|
2123
|
1147 |
|
|
1148 beginning_of_line = true; |
|
|
1149 } |
|
|
1150 |
|
|
1151 // For ressetting print_code state. |
|
|
1152 |
|
|
1153 void |
|
|
1154 tree_print_code::reset (void) |
|
|
1155 { |
|
|
1156 beginning_of_line = true; |
|
|
1157 curr_print_indent_level = 0; |
|
4676
|
1158 while (nesting.top () != 'n') |
|
|
1159 nesting.pop (); |
|
2123
|
1160 } |
|
|
1161 |
|
2961
|
1162 void |
|
|
1163 tree_print_code::print_parens (const tree_expression& expr, const char *txt) |
|
|
1164 { |
|
|
1165 int n = expr.paren_count (); |
|
|
1166 |
|
|
1167 for (int i = 0; i < n; i++) |
|
|
1168 os << txt; |
|
|
1169 } |
|
|
1170 |
|
3665
|
1171 void |
|
|
1172 tree_print_code::print_comment_elt (const octave_comment_elt& elt) |
|
|
1173 { |
|
|
1174 bool printed_something = false; |
|
|
1175 |
|
|
1176 bool prev_char_was_newline = false; |
|
|
1177 |
|
3769
|
1178 std::string comment = elt.text (); |
|
3665
|
1179 |
|
|
1180 size_t len = comment.length (); |
|
|
1181 |
|
|
1182 size_t i = 0; |
|
|
1183 |
|
|
1184 while (i < len && comment[i++] == '\n') |
|
|
1185 ; /* Skip leading new lines. */ |
|
|
1186 i--; |
|
|
1187 |
|
|
1188 while (i < len) |
|
|
1189 { |
|
|
1190 char c = comment[i++]; |
|
|
1191 |
|
|
1192 if (c == '\n') |
|
|
1193 { |
|
|
1194 if (prev_char_was_newline) |
|
|
1195 os << "##"; |
|
|
1196 |
|
|
1197 newline (); |
|
|
1198 |
|
|
1199 prev_char_was_newline = true; |
|
|
1200 } |
|
|
1201 else |
|
|
1202 { |
|
|
1203 if (beginning_of_line) |
|
|
1204 { |
|
|
1205 printed_something = true; |
|
|
1206 |
|
|
1207 indent (); |
|
|
1208 |
|
|
1209 os << "##"; |
|
|
1210 |
|
|
1211 if (! (isspace (c) || c == '!')) |
|
|
1212 os << " "; |
|
|
1213 } |
|
|
1214 |
|
5760
|
1215 os << static_cast<char> (c); |
|
3665
|
1216 |
|
|
1217 prev_char_was_newline = false; |
|
|
1218 } |
|
|
1219 } |
|
|
1220 |
|
|
1221 if (printed_something && ! beginning_of_line) |
|
|
1222 newline (); |
|
|
1223 } |
|
|
1224 |
|
|
1225 void |
|
|
1226 tree_print_code::print_comment_list (octave_comment_list *comment_list) |
|
|
1227 { |
|
|
1228 if (comment_list) |
|
|
1229 { |
|
4219
|
1230 octave_comment_list::iterator p = comment_list->begin (); |
|
3665
|
1231 |
|
4219
|
1232 while (p != comment_list->end ()) |
|
3665
|
1233 { |
|
4219
|
1234 octave_comment_elt elt = *p++; |
|
3665
|
1235 |
|
|
1236 print_comment_elt (elt); |
|
|
1237 |
|
4219
|
1238 if (p != comment_list->end ()) |
|
3665
|
1239 newline (); |
|
|
1240 } |
|
|
1241 } |
|
|
1242 } |
|
|
1243 |
|
|
1244 void |
|
|
1245 tree_print_code::print_indented_comment (octave_comment_list *comment_list) |
|
|
1246 { |
|
|
1247 increment_indent_level (); |
|
|
1248 |
|
|
1249 print_comment_list (comment_list); |
|
|
1250 |
|
|
1251 decrement_indent_level (); |
|
|
1252 } |
|
|
1253 |
|
2123
|
1254 /* |
|
|
1255 ;;; Local Variables: *** |
|
|
1256 ;;; mode: C++ *** |
|
|
1257 ;;; End: *** |
|
|
1258 */ |
