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1 /* |
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2 |
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3 Copyright (C) 2001 Ben Sapp |
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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 <iostream> |
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28 #include <fstream> |
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29 #include <strstream> |
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30 #include <string> |
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31 |
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32 #include "defun.h" |
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33 #include "error.h" |
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34 #include "input.h" |
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35 #include "pager.h" |
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36 #include "oct-obj.h" |
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37 #include "utils.h" |
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38 #include "parse.h" |
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39 #include "symtab.h" |
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40 #include "gripes.h" |
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41 #include "ov.h" |
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42 #include "ov-usr-fcn.h" |
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43 #include "ov-fcn.h" |
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44 #include "pt-pr-code.h" |
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45 #include "pt.h" |
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46 #include "pt-bp.h" |
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47 #include "pt-stmt.h" |
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48 #include "toplev.h" |
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49 #include "unwind-prot.h" |
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50 #include "variables.h" |
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51 |
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52 static octave_user_function * |
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53 get_user_function (std::string str = "") |
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54 { |
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55 octave_user_function *dbg_fcn = 0; |
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56 |
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57 if (str.compare ("")) |
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58 { |
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59 symbol_record *ptr = curr_sym_tab->lookup (str); |
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60 |
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61 if (ptr && ptr->is_user_function ()) |
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62 { |
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63 octave_value tmp = ptr->def (); |
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64 dbg_fcn = static_cast<octave_user_function *> (tmp.function_value ()); |
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65 } |
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66 else |
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67 { |
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68 symbol_record *ptr = lookup_by_name (str, false); |
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69 |
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70 if (ptr && ptr->is_user_function ()) |
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71 { |
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72 octave_value tmp = ptr->def (); |
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73 dbg_fcn = static_cast<octave_user_function *> (tmp.function_value ()); |
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74 } |
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75 } |
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76 } |
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77 else if (curr_function) |
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78 dbg_fcn = curr_function; |
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79 |
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80 return dbg_fcn; |
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81 } |
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82 |
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83 |
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84 DEFUN_TEXT (dbstop, args, , |
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85 "-*- texinfo -*-\n\ |
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86 @deftypefn {Loadable Function} {rline =} dbstop (func, line)\n\ |
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87 Set a breakpoint in a function\n\ |
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88 @table @code\n\ |
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89 @item func\n\ |
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90 String representing the function name. When already in debug\n\ |
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91 mode this should be left out and only the line should be given.\n\ |
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92 @item line\n\ |
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93 Line you would like the breakpoint to be set on\n\ |
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94 @end table\n\ |
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95 \n\ |
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96 The rline returned is the real line that the breakpoint was set at.\n\ |
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97 \n\ |
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98 @end deftypefn\n\ |
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99 @seealso{dbclear, dbtatus, dbnext}") |
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100 { |
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101 octave_value retval; |
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102 |
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103 int result = -1; |
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104 int nargin = args.length (); |
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105 |
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106 string_vector argv = args.make_argv ("dbstop"); |
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107 |
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108 if (error_state) |
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109 return retval; |
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110 |
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111 if (nargin == 2) |
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112 { |
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113 std::string symbol_name = argv[1]; |
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114 |
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115 std::string line_number = argv[2]; |
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116 |
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117 int line = atoi (line_number.c_str ()); |
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118 |
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119 octave_user_function *dbg_fcn = get_user_function (symbol_name); |
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120 |
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121 if (dbg_fcn) |
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122 { |
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123 tree_statement_list *cmds = dbg_fcn->body (); |
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124 result = cmds->set_breakpoint (line); |
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125 } |
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126 else |
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127 error ("dbstop: unable to find the function requested\n"); |
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128 } |
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129 else if (nargin == 1) |
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130 { |
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131 std::string line_number = argv[1]; |
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132 |
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133 int line = atoi (line_number.c_str ()); |
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134 |
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135 octave_user_function *dbg_fcn = get_user_function (); |
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136 |
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137 if (dbg_fcn) |
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138 { |
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139 tree_statement_list *cmds = dbg_fcn->body (); |
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140 result = cmds->set_breakpoint (line); |
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141 } |
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142 else |
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143 error ("dbstop: unable to find the function requested\n"); |
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144 } |
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145 else |
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146 error ("dbstop: one argument when in a function and two when not\n"); |
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147 |
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148 retval = static_cast<double> (result); |
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149 |
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150 return retval; |
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151 } |
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152 |
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153 DEFUN_TEXT (dbclear, args, , |
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154 "-*- texinfo -*-\n\ |
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155 @deftypefn {Loadable Function} {} dbclear (func, line)\n\ |
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156 Delete a breakpoint in a function\n\ |
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157 @table @code\n\ |
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158 @item func\n\ |
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159 String representing the function name. When already in debug\n\ |
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160 mode this should be left out and only the line should be given.\n\ |
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161 @item line\n\ |
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162 Line where you would like to remove the the breakpoint\n\ |
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163 @end table\n\ |
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164 No checking is done to make sure that the line you requested is really\n\ |
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165 a breakpoint. If you get the wrong line nothing will happen.\n\ |
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166 @end deftypefn\n\ |
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167 @seealso{dbstop, dbstatus, dbwhere}") |
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168 { |
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169 octave_value retval; |
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170 |
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171 std::string symbol_name = ""; |
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172 std::string line_number; |
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173 |
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174 int line = -1; |
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175 int nargin = args.length (); |
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176 |
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177 string_vector argv = args.make_argv ("dbclear"); |
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178 |
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179 if (error_state) |
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180 return retval; |
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181 |
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182 if (nargin == 1 || nargin == 2) |
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183 { |
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184 if (nargin == 2) |
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185 { |
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186 symbol_name = argv[1]; |
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187 |
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188 octave_stdout << argv[1] << std::endl; |
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189 line_number = argv[2]; |
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190 } |
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191 else if (nargin == 1) |
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192 { |
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193 line_number = argv[1]; |
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194 } |
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195 |
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196 if (line_number.compare ("all") && line_number.compare ("ALL")) |
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197 line = atoi (line_number.c_str ()); |
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198 else |
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199 line = -1; |
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200 |
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201 octave_stdout << "symbol_name = " << symbol_name << std::endl; |
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202 octave_user_function *dbg_fcn = get_user_function (symbol_name); |
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203 |
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204 if (dbg_fcn) |
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205 { |
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206 tree_statement_list *cmds = dbg_fcn->body (); |
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207 cmds->delete_breakpoint (line); |
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208 } |
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209 else |
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210 error ("dbclear: unable to find the function requested\n"); |
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211 } |
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212 else |
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213 error ("dbclear: expecting one or two arguements\n"); |
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214 |
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215 return retval; |
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216 } |
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217 |
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218 DEFUN_TEXT (dbstatus, args, , |
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219 "-*- texinfo -*-\n\ |
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220 @deftypefn {Loadable Function} {lst =} dbstatus ([func])\n\ |
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221 Return a vector containing the lines on which a function has \n\ |
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222 breakpoints set.\n\ |
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223 @table @code\n\ |
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224 @item func\n\ |
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225 String representing the function name. When already in debug\n\ |
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226 mode this should be left out.\n\ |
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227 @end table\n\ |
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228 @end deftypefn\n\ |
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229 @seealso{dbclear, dbwhere}") |
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230 { |
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231 octave_value retval; |
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232 |
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233 int nargin = args.length (); |
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234 |
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235 if (nargin != 0 && nargin != 1) |
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236 { |
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237 error ("dbstatus: only zero or one arguements accepted\n"); |
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238 return retval; |
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239 } |
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240 |
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241 std::string symbol_name = ""; |
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242 |
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243 if (nargin == 1) |
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244 { |
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245 if (args(0).is_string ()) |
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246 symbol_name = args(0).string_value (); |
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247 else |
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248 gripe_wrong_type_arg ("dbstatus", args(0)); |
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249 } |
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250 |
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251 octave_user_function *dbg_fcn = get_user_function (symbol_name); |
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252 |
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253 if (dbg_fcn) |
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254 { |
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255 tree_statement_list *cmds = dbg_fcn->body (); |
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256 |
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257 octave_value_list lst = cmds->list_breakpoints (); |
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258 |
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259 RowVector vec (lst.length (), 0.0); |
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260 |
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261 for (int i = 0; i < lst.length (); i++) |
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262 { |
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263 vec(i) = lst(i).double_value (); |
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264 |
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265 if (error_state) |
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266 panic_impossible (); |
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267 } |
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268 |
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269 retval = octave_value (vec); |
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270 } |
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271 else |
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272 error ("dbstatus: unable to find the function you requested\n"); |
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273 |
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274 return retval; |
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275 } |
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276 |
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277 DEFUN_TEXT (dbwhere, , , |
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278 "-*- texinfo -*-\n\ |
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279 @deftypefn {Loadable Function} {} dbwhere ()\n\ |
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280 Show where we are in the code\n\ |
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281 @end deftypefn\n\ |
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282 @seealso{dbclear, dbstatus, dbstop}") |
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283 { |
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284 octave_value retval; |
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285 |
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286 octave_user_function *dbg_fcn = curr_function; |
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287 |
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288 if (dbg_fcn) |
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289 { |
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290 std::string name = dbg_fcn->function_name (); |
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291 |
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292 octave_stdout << name << ":"; |
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293 |
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294 const tree *dbg_stmt = tree::break_statement; |
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295 |
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296 if (dbg_stmt) |
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297 { |
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298 octave_stdout << "line " << dbg_stmt->line () << ", "; |
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299 octave_stdout << "column " << dbg_stmt->column () << std::endl; |
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300 } |
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301 else |
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302 octave_stdout << "-1\n"; |
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303 } |
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304 else |
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305 error ("dbwhere: must be inside of a user function to use dbwhere\n"); |
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306 |
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307 return retval; |
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308 } |
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309 |
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310 // Copied and modified from the do_type command in help.cc |
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311 // Maybe we could share some code? |
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312 void |
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313 do_dbtype (std::ostream& os, const std::string& name, int start, int end) |
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314 { |
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315 std::string ff = fcn_file_in_path (name); |
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316 |
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317 if (! ff.empty ()) |
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318 { |
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319 std::ifstream fs (ff.c_str (), std::ios::in); |
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320 |
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321 if (fs) |
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322 { |
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323 char ch; |
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324 int line = 1; |
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325 |
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326 if (line >= start && line <= end) |
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327 os << line << "\t"; |
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328 |
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329 while (fs.get (ch)) |
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330 { |
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331 if (line >= start && line <= end) |
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332 { |
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333 os << ch; |
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334 } |
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335 |
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336 if (ch == '\n') |
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337 { |
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338 line++; |
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339 if (line >= start && line <= end) |
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340 os << line << "\t"; |
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341 } |
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342 } |
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343 } |
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344 else |
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345 os << "dbtype: unable to open `" << ff << "' for reading!\n"; |
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346 } |
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347 else |
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348 os << "dbtype: unkown function"; |
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349 |
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350 } |
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351 |
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352 DEFUN_TEXT (dbtype, args, , |
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353 "-*- texinfo -*-\n\ |
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354 @deftypefn {Loadable Function} {} dbtype ()\n\ |
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355 List script file with line numbers.\n\ |
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356 @end deftypefn\n\ |
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357 @seealso{dbclear, dbstatus, dbstop}") |
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358 { |
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359 octave_value retval; |
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360 octave_user_function *dbg_fcn; |
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361 |
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362 int nargin = args.length (); |
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363 string_vector argv = args.make_argv ("dbtype"); |
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364 |
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365 if (! error_state) |
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366 { |
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367 switch (nargin) |
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368 { |
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369 case 0: // dbtype |
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370 dbg_fcn = get_user_function (); |
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371 |
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372 if (dbg_fcn) |
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373 do_dbtype (octave_stdout, dbg_fcn->function_name (), 0, INT_MAX); |
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374 else |
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375 error ("dbtype: must be in a user function to give no arguments to dbtype\n"); |
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376 break; |
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377 |
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378 case 1: // (dbtype func) || (dbtype start:end) |
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379 dbg_fcn = get_user_function (argv[1]); |
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380 |
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381 if (dbg_fcn) |
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382 do_dbtype (octave_stdout, dbg_fcn->function_name (), 0, INT_MAX); |
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383 else |
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384 { |
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385 dbg_fcn = get_user_function (""); |
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386 |
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387 if (dbg_fcn) |
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388 { |
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389 std::string arg = argv[1]; |
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390 |
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391 size_t ind = arg.find (':'); |
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392 |
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393 if (ind != NPOS) |
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394 { |
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395 std::string start_str = arg.substr (0, ind); |
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396 std::string end_str = arg.substr (ind + 1); |
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397 |
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398 int start = atoi (start_str.c_str ()); |
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399 int end = atoi (end_str.c_str ()); |
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400 |
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401 if (start < end) |
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402 do_dbtype (octave_stdout, |
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403 dbg_fcn->function_name (), start, end); |
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404 else |
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405 error ("dbtype: the start line must be less than the end line\n"); |
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406 } |
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407 else |
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408 error ("dbtype: if you specify lines it must be like `start:end`"); |
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409 } |
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410 } |
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411 break; |
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412 |
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413 case 2: // (dbtype func start:end) |
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414 dbg_fcn = get_user_function (argv[1]); |
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415 |
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416 if (dbg_fcn) |
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417 { |
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418 std::string arg = argv[2]; |
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419 |
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420 size_t ind = arg.find (':'); |
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421 |
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422 if (ind != NPOS) |
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423 { |
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424 std::string start_str = arg.substr (0, ind); |
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425 std::string end_str = arg.substr (ind + 1); |
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426 |
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427 int start = atoi (start_str.c_str ()); |
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428 int end = atoi (end_str.c_str ()); |
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429 |
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430 if (start < end) |
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431 do_dbtype (octave_stdout, |
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432 dbg_fcn->function_name (), start, end); |
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433 else |
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434 error ("dbtype: the start line must be less than the end line\n"); |
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435 } |
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436 else |
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437 error ("dbtype: if you specify lines it must be like `start:end`"); |
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438 } |
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439 break; |
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440 |
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441 default: |
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442 error ("dbtype: expecting zero, one, or two arguments\n"); |
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443 } |
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444 } |
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3805
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445 |
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446 return retval; |
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447 } |
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448 |
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449 /* |
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450 ;;; Local Variables: *** |
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451 ;;; mode: C++ *** |
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452 ;;; End: *** |
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453 */ |
