annotate libinterp/parse-tree/lex.h @ 32931:d8c716290873

maint: merge stable to default
author John W. Eaton <jwe@octave.org>
date Sun, 04 Feb 2024 23:24:58 -0500
parents 319dcef8962d ab4b7e516ff3
children 068b80d70ff6
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1 ////////////////////////////////////////////////////////////////////////
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2 //
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3 // Copyright (C) 1993-2024 The Octave Project Developers
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4 //
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5 // See the file COPYRIGHT.md in the top-level directory of this
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6 // distribution or <https://octave.org/copyright/>.
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7 //
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8 // This file is part of Octave.
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9 //
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10 // Octave is free software: you can redistribute it and/or modify it
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11 // under the terms of the GNU General Public License as published by
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12 // the Free Software Foundation, either version 3 of the License, or
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13 // (at your option) any later version.
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14 //
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15 // Octave is distributed in the hope that it will be useful, but
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16 // WITHOUT ANY WARRANTY; without even the implied warranty of
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17 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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18 // GNU General Public License for more details.
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19 //
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20 // You should have received a copy of the GNU General Public License
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21 // along with Octave; see the file COPYING. If not, see
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22 // <https://www.gnu.org/licenses/>.
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23 //
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24 ////////////////////////////////////////////////////////////////////////
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
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25
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26 #if ! defined (octave_lex_h)
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27 #define octave_lex_h 1
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28
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29 #include "octave-config.h"
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30
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31 #include <deque>
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32 #include <list>
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33 #include <set>
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34 #include <stack>
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35
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36 #include "comment-list.h"
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37 #include "filepos.h"
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38 #include "input.h"
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39 #include "symscope.h"
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40 #include "token.h"
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41
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42 OCTAVE_BEGIN_NAMESPACE(octave)
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43
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44 class interpreter;
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45
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46 // Is the given string a keyword?
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47 extern bool iskeyword (const std::string& s);
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48
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49 // For communication between the lexer and parser.
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50
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51 class lexical_feedback
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52 {
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53 public:
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54
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55 // Track symbol table information when parsing functions.
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56
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57 class symbol_table_context
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58 {
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59 public:
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60
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61 symbol_table_context (interpreter& interp)
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62 : m_interpreter (interp), m_frame_stack () { }
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63
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64 OCTAVE_DISABLE_CONSTRUCT_COPY_MOVE (symbol_table_context)
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65
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66 ~symbol_table_context () { clear (); }
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67
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68 void clear ();
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69
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70 bool empty () const { return m_frame_stack.empty (); }
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71
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72 std::size_t size () const { return m_frame_stack.size (); }
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73
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74 void pop ();
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75
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76 void push (const symbol_scope& scope)
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77 {
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78 m_frame_stack.push_front (scope);
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79 }
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80
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81 symbol_scope curr_scope () const;
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82 symbol_scope parent_scope () const;
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83
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84 private:
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85
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86 interpreter& m_interpreter;
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87
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88 std::deque<symbol_scope> m_frame_stack;
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89 };
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90
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91 // Track nesting of square brackets, curly braces, and parentheses.
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92
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93 class bbp_nesting_level
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94 {
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95 private:
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96
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97 enum bracket_type
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98 {
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99 BRACKET = 1,
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100 BRACE = 2,
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101 PAREN = 3,
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102 ANON_FCN_BODY = 4
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103 };
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104
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105 public:
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106
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107 bbp_nesting_level () : m_context () { }
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108
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109 bbp_nesting_level (const bbp_nesting_level& nl)
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110 : m_context (nl.m_context)
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111 { }
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112
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113 bbp_nesting_level& operator = (const bbp_nesting_level& nl)
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114 {
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115 if (&nl != this)
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116 m_context = nl.m_context;
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117
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118 return *this;
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119 }
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120
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121 ~bbp_nesting_level () = default;
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122
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123 // Alias for clear function.
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124 void reset () { clear (); }
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125
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126 void bracket () { m_context.push (BRACKET); }
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127
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128 bool is_bracket ()
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129 {
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130 return ! m_context.empty () && m_context.top () == BRACKET;
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131 }
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132
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133 void brace () { m_context.push (BRACE); }
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134
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135 bool is_brace ()
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136 {
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137 return ! m_context.empty () && m_context.top () == BRACE;
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138 }
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139
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140 void paren () { m_context.push (PAREN); }
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141
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142 bool is_paren ()
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143 {
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144 return ! m_context.empty () && m_context.top () == PAREN;
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145 }
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146
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147 void anon_fcn_body () { m_context.push (ANON_FCN_BODY); }
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148
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149 bool is_anon_fcn_body ()
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150 {
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151 return ! m_context.empty () && m_context.top () == ANON_FCN_BODY;
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152 }
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153
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154 bool is_bracket_or_brace ()
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155 {
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156 return (! m_context.empty ()
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157 && (m_context.top () == BRACKET || m_context.top () == BRACE));
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158 }
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159
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160 bool none () { return m_context.empty (); }
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161
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162 void remove ()
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163 {
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164 if (! m_context.empty ())
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165 m_context.pop ();
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166 }
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167
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168 void clear ()
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169 {
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170 while (! m_context.empty ())
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171 m_context.pop ();
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172 }
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173
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174 private:
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175
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176 std::stack<int> m_context;
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177 };
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178
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179 class token_cache
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180 {
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181 public:
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182
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183 // Store an "unlimited" number of tokens.
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184
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185 // Tokens are allocated with new. Delete them when they are
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186 // removed from the cache.
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187 //
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188 // One of the reasons for using this class instead of std::deque
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189 // directly is that we can ensure that memory is cleaned up
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190 // properly. It's more tedious to do that with deque since the
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191 // deque destructor and clear method don't call delete on the
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192 // elements that it stores. Another reason is that it makes it
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193 // easier to change the implementation later if needed.
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194
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195 token_cache () : m_buffer () { }
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196
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197 OCTAVE_DISABLE_COPY_MOVE (token_cache)
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198
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199 ~token_cache () { clear (); }
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200
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201 void push (token *tok)
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202 {
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203 m_buffer.push_front (tok);
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204 }
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205
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206 void pop ()
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207 {
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208 if (! empty ())
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209 {
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210 delete m_buffer.back ();
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211 m_buffer.pop_back ();
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212 }
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213 }
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214
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215 // Direct access.
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216 token * at (std::size_t n)
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217 {
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218 return empty () ? nullptr : m_buffer.at (n);
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219 }
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220
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221 const token * at (std::size_t n) const
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222 {
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223 return empty () ? nullptr : m_buffer.at (n);
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224 }
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225
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226 // Most recently pushed.
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227 token * front ()
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228 {
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229 return empty () ? nullptr : m_buffer.front ();
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230 }
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231
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232 const token * front () const
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233 {
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234 return empty () ? nullptr : m_buffer.front ();
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235 }
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236
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237 token * back ()
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238 {
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239 return empty () ? nullptr : m_buffer.back ();
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240 }
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241
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242 const token * back () const
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243 {
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244 return empty () ? nullptr : m_buffer.back ();
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245 }
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246
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247 // Number of elements currently in the buffer.
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248 std::size_t size () const { return m_buffer.size (); }
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249
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250 bool empty () const { return m_buffer.empty (); }
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251
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252 void clear ()
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253 {
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254 while (! empty ())
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255 pop ();
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256 }
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257
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258 private:
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259
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260 std::deque<token *> m_buffer;
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261 };
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262
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263 lexical_feedback (interpreter& interp)
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264 : m_interpreter (interp),
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265 m_end_of_input (false),
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266 m_allow_command_syntax (true),
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267 m_at_beginning_of_statement (true),
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268 m_looking_at_anon_fcn_args (false),
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269 m_looking_at_return_list (false),
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270 m_looking_at_parameter_list (false),
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271 m_looking_at_decl_list (false),
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272 m_looking_at_matrix_or_assign_lhs (false),
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273 m_looking_for_object_index (false),
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274 m_looking_at_indirect_ref (false),
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275 m_arguments_is_keyword (false),
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276 m_classdef_element_names_are_keywords (false),
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277 m_parsing_anon_fcn_body (false),
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278 m_parsing_class_method (false),
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279 m_parsing_classdef (false),
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280 m_parsing_classdef_decl (false),
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281 m_parsing_classdef_superclass (false),
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282 m_maybe_classdef_get_set_method (false),
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283 m_parsing_classdef_get_method (false),
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284 m_parsing_classdef_set_method (false),
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285 m_quote_is_transpose (false),
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286 m_force_script (false),
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diff changeset
287 m_reading_fcn_file (false),
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diff changeset
288 m_reading_script_file (false),
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diff changeset
289 m_reading_classdef_file (false),
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Rik <rik@octave.org>
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diff changeset
290 m_buffer_function_text (false),
32917
f41297ca3e1a when parsing, record whether a comment uses a '#' delimeter
John W. Eaton <jwe@octave.org>
parents: 32892
diff changeset
291 m_comment_uses_hash_char (false),
31607
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diff changeset
292 m_bracketflag (0),
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
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diff changeset
293 m_braceflag (0),
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
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diff changeset
294 m_looping (0),
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
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diff changeset
295 m_defining_fcn (0),
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
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diff changeset
296 m_looking_at_function_handle (0),
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
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diff changeset
297 m_block_comment_nesting_level (0),
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
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298 m_command_arg_paren_count (0),
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
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diff changeset
299 m_token_count (0),
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
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300 m_filepos (1, 1),
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
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diff changeset
301 m_tok_beg (),
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
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diff changeset
302 m_tok_end (),
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Rik <rik@octave.org>
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303 m_string_text (),
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304 m_current_input_line (),
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diff changeset
305 m_comment_text (),
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diff changeset
306 m_function_text (),
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
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307 m_fcn_file_name (),
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
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308 m_fcn_file_full_name (),
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
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309 m_dir_name (),
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310 m_package_name (),
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311 m_looking_at_object_index (),
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312 m_parsed_function_name (),
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Rik <rik@octave.org>
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313 m_symtab_context (interp),
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314 m_nesting_level (),
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315 m_tokens ()
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Rik <rik@octave.org>
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316 {
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317 init ();
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318 }
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319
31855
1daf8bfceac3 default or disable more ctors, dtors, and assignment ops
John W. Eaton <jwe@octave.org>
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320 OCTAVE_DISABLE_CONSTRUCT_COPY_MOVE (lexical_feedback)
31607
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321
31771
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322 ~lexical_feedback ();
31607
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323
31771
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324 void init ();
31607
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325
31771
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326 void reset ();
31607
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327
31771
21f9b34eb893 maint: Eliminate "(void)" in C++ function prototypes/declarations.
Rik <rik@octave.org>
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328 int previous_token_value () const;
31607
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diff changeset
329
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
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330 bool previous_token_value_is (int tok_val) const;
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
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331
31771
21f9b34eb893 maint: Eliminate "(void)" in C++ function prototypes/declarations.
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332 void mark_previous_token_trailing_space ();
31607
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Rik <rik@octave.org>
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diff changeset
333
31771
21f9b34eb893 maint: Eliminate "(void)" in C++ function prototypes/declarations.
Rik <rik@octave.org>
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diff changeset
334 bool space_follows_previous_token () const;
31607
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Rik <rik@octave.org>
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diff changeset
335
31771
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diff changeset
336 bool previous_token_is_binop () const;
31607
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diff changeset
337
31771
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diff changeset
338 bool previous_token_is_keyword () const;
31607
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diff changeset
339
31771
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340 bool previous_token_may_be_command () const;
31607
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diff changeset
341
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
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diff changeset
342 void mark_as_variable (const std::string& nm);
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
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343 void mark_as_variables (const std::list<std::string>& lst);
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
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344
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
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diff changeset
345 interpreter& m_interpreter;
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
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346
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
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diff changeset
347 // true means that we have encountered eof on the input stream.
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
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diff changeset
348 bool m_end_of_input;
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
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349
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
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350 // true means command syntax is allowed.
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
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diff changeset
351 bool m_allow_command_syntax;
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
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352
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
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353 // true means we are at the beginning of a statement, where a
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
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diff changeset
354 // command name is possible.
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
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diff changeset
355 bool m_at_beginning_of_statement;
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
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diff changeset
356
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
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diff changeset
357 // true means we are parsing an anonymous function argument list.
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
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diff changeset
358 bool m_looking_at_anon_fcn_args;
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
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diff changeset
359
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
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diff changeset
360 // true means we're parsing the return list for a function.
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
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361 bool m_looking_at_return_list;
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
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362
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
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363 // true means we're parsing the parameter list for a function.
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
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diff changeset
364 bool m_looking_at_parameter_list;
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
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diff changeset
365
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
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366 // true means we're parsing a declaration list (global or
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
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diff changeset
367 // persistent).
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
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diff changeset
368 bool m_looking_at_decl_list;
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
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369
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
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diff changeset
370 // true means we're parsing a matrix or the left hand side of
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
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diff changeset
371 // multi-value assignment statement.
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
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diff changeset
372 bool m_looking_at_matrix_or_assign_lhs;
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
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diff changeset
373
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
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diff changeset
374 // object index not possible until we've seen something.
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
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diff changeset
375 bool m_looking_for_object_index;
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
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diff changeset
376
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
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diff changeset
377 // true means we're looking at an indirect reference to a
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
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diff changeset
378 // structure element.
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
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diff changeset
379 bool m_looking_at_indirect_ref;
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
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diff changeset
380
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
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diff changeset
381 // true means arguments is handled as keyword.
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
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diff changeset
382 bool m_arguments_is_keyword;
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
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diff changeset
383
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
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diff changeset
384 // true means "properties", "methods", "events", and "enumeration"
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
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diff changeset
385 // are treated like keywords.
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
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diff changeset
386 bool m_classdef_element_names_are_keywords;
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
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diff changeset
387
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
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diff changeset
388 // true means we are parsing the body of an anonymous function.
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
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diff changeset
389 bool m_parsing_anon_fcn_body;
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
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diff changeset
390
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
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diff changeset
391 // true means we are parsing a class method in function or classdef file.
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
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diff changeset
392 bool m_parsing_class_method;
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
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diff changeset
393
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
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diff changeset
394 // true means we are parsing a classdef file
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
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diff changeset
395 bool m_parsing_classdef;
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
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diff changeset
396
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
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diff changeset
397 // true means we are parsing the initial classdef declaration
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
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diff changeset
398 // portion of classdef file, from the "classdef" token through the
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
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diff changeset
399 // optional list of superclasses.
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
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diff changeset
400 bool m_parsing_classdef_decl;
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
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diff changeset
401
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
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diff changeset
402 // true means we are parsing the superclass part of a classdef
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
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diff changeset
403 // declaration.
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
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diff changeset
404 bool m_parsing_classdef_superclass;
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
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diff changeset
405
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
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diff changeset
406 // true means we are parsing a class method declaration line in a
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
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diff changeset
407 // classdef file and can accept a property get or set method name.
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
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diff changeset
408 // for example, "get.propertyname" is recognized as a function name.
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
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diff changeset
409 bool m_maybe_classdef_get_set_method;
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
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diff changeset
410
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
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diff changeset
411 // TRUE means we are parsing a classdef get.method.
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
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diff changeset
412 bool m_parsing_classdef_get_method;
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
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diff changeset
413
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
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diff changeset
414 // TRUE means we are parsing a classdef set.method.
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
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diff changeset
415 bool m_parsing_classdef_set_method;
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
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diff changeset
416
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
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diff changeset
417 // return transpose or start a string?
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
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diff changeset
418 bool m_quote_is_transpose;
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
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diff changeset
419
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
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diff changeset
420 // TRUE means treat the current file as a script even if the first
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
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diff changeset
421 // token is "function" or "classdef".
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
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diff changeset
422 bool m_force_script;
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
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diff changeset
423
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
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diff changeset
424 // TRUE means we're parsing a function file.
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
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diff changeset
425 bool m_reading_fcn_file;
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
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diff changeset
426
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
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diff changeset
427 // TRUE means we're parsing a script file.
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
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diff changeset
428 bool m_reading_script_file;
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
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diff changeset
429
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
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diff changeset
430 // TRUE means we're parsing a classdef file.
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
431 bool m_reading_classdef_file;
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
432
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
433 // TRUE means we should store the text of the function we are
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
434 // parsing.
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
435 bool m_buffer_function_text;
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
436
32917
f41297ca3e1a when parsing, record whether a comment uses a '#' delimeter
John W. Eaton <jwe@octave.org>
parents: 32892
diff changeset
437 // TRUE means a line comment uses '#' or a block comment used at least
f41297ca3e1a when parsing, record whether a comment uses a '#' delimeter
John W. Eaton <jwe@octave.org>
parents: 32892
diff changeset
438 // one '#' delimiter.
f41297ca3e1a when parsing, record whether a comment uses a '#' delimeter
John W. Eaton <jwe@octave.org>
parents: 32892
diff changeset
439 bool m_comment_uses_hash_char;
f41297ca3e1a when parsing, record whether a comment uses a '#' delimeter
John W. Eaton <jwe@octave.org>
parents: 32892
diff changeset
440
31607
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
441 // square bracket level count.
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
442 int m_bracketflag;
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
443
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
444 // curly brace level count.
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
445 int m_braceflag;
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
446
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
447 // true means we're in the middle of defining a loop.
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
448 int m_looping;
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
449
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
450 // nonzero means we're in the middle of defining a function.
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
451 int m_defining_fcn;
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
452
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
453 // nonzero means we are parsing a function handle.
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
454 int m_looking_at_function_handle;
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
455
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
456 // nestng level for block comments.
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
457 int m_block_comment_nesting_level;
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
458
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
459 // Parenthesis count for command argument parsing.
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
460 int m_command_arg_paren_count;
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
461
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
462 // Count of tokens recognized by this lexer since initialized or
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
463 // since the last reset.
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
464 std::size_t m_token_count;
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
465
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
466 // The current position in the file (line and column).
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
467 filepos m_filepos;
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
468
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
469 // The positions of the beginning and end of the current token after
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
470 // calling update_token_positions. Also used apart from
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
471 // update_token_positions to handle the beginning and end of
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
472 // character strings.
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
473 filepos m_tok_beg;
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
474 filepos m_tok_end;
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
475
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
476 // The current character string text.
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
477 std::string m_string_text;
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
478
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
479 // The current line of input.
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
480 std::string m_current_input_line;
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
481
32917
f41297ca3e1a when parsing, record whether a comment uses a '#' delimeter
John W. Eaton <jwe@octave.org>
parents: 32892
diff changeset
482 // The text of the current comment, used to gather comment lines
f41297ca3e1a when parsing, record whether a comment uses a '#' delimeter
John W. Eaton <jwe@octave.org>
parents: 32892
diff changeset
483 // before storing in m_comment_buf.
31607
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
484 std::string m_comment_text;
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
485
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
486 // The text of functions entered on the command line.
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
487 std::string m_function_text;
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
488
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
489 // Simple name of function file we are reading.
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
490 std::string m_fcn_file_name;
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
491
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
492 // Full name of file we are reading.
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
493 std::string m_fcn_file_full_name;
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
494
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
495 // Directory name where this file was found. May be relative.
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
496 std::string m_dir_name;
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
497
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
498 // Name of +package containing this file, if any.
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
499 std::string m_package_name;
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
500
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
501 // if the front of the list is true, the closest paren, brace, or
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
502 // bracket nesting is an index for an object.
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
503 std::list<bool> m_looking_at_object_index;
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
504
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
505 // if the top of the stack is true, then we've already seen the name
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
506 // of the current function. should only matter if
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
507 // current_function_level > 0
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
508 std::stack<bool> m_parsed_function_name;
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
509
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
510 // Track current symbol table scope and context.
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
511 symbol_table_context m_symtab_context;
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
512
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
513 // is the closest nesting level a square bracket, squiggly brace,
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
514 // a paren, or an anonymous function body?
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
515 bbp_nesting_level m_nesting_level;
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
516
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
517 // Tokens generated by the lexer.
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
518 token_cache m_tokens;
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
519 };
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
520
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
521 // base_lexer inherits from lexical_feedback because we will
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
522 // eventually have several different constructors and it is easier to
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
523 // initialize if everything is grouped in a parent class rather than
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
524 // listing all the members in the base_lexer class.
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
525
32628
ae4e19c0a2b1 maint: Place class name and class keyword on one line.
Rik <rik@octave.org>
parents: 31855
diff changeset
526 class base_lexer : public lexical_feedback
31607
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
527 {
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
528 public:
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
529
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
530 // Handle buffering of input for lexer.
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
531
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
532 class input_buffer
17693
efbe746f8fa8 eliminate octave_comment_buffer singleton
John W. Eaton <jwe@octave.org>
parents: 16898
diff changeset
533 {
efbe746f8fa8 eliminate octave_comment_buffer singleton
John W. Eaton <jwe@octave.org>
parents: 16898
diff changeset
534 public:
efbe746f8fa8 eliminate octave_comment_buffer singleton
John W. Eaton <jwe@octave.org>
parents: 16898
diff changeset
535
31771
21f9b34eb893 maint: Eliminate "(void)" in C++ function prototypes/declarations.
Rik <rik@octave.org>
parents: 31707
diff changeset
536 input_buffer ()
31607
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
537 : m_buffer (), m_offset (0), m_chars_left (0), m_eof (false)
22196
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator
John W. Eaton <jwe@octave.org>
parents: 21814
diff changeset
538 { }
17693
efbe746f8fa8 eliminate octave_comment_buffer singleton
John W. Eaton <jwe@octave.org>
parents: 16898
diff changeset
539
31855
1daf8bfceac3 default or disable more ctors, dtors, and assignment ops
John W. Eaton <jwe@octave.org>
parents: 31837
diff changeset
540 OCTAVE_DEFAULT_COPY_MOVE_DELETE (input_buffer)
1daf8bfceac3 default or disable more ctors, dtors, and assignment ops
John W. Eaton <jwe@octave.org>
parents: 31837
diff changeset
541
31607
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
542 void fill (const std::string& input, bool eof_arg);
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
543
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
544 // Copy at most max_size characters to buf.
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
545 int copy_chunk (char *buf, std::size_t max_size, bool by_lines = false);
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
546
31771
21f9b34eb893 maint: Eliminate "(void)" in C++ function prototypes/declarations.
Rik <rik@octave.org>
parents: 31707
diff changeset
547 bool empty () const { return m_chars_left == 0; }
31607
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
548
31771
21f9b34eb893 maint: Eliminate "(void)" in C++ function prototypes/declarations.
Rik <rik@octave.org>
parents: 31707
diff changeset
549 bool at_eof () const { return m_eof; }
31607
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
550
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
551 private:
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
552
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
553 std::string m_buffer;
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
554 std::size_t m_offset;
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
555 std::size_t m_chars_left;
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
556 bool m_eof;
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
557 };
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
558
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
559 // Collect comment text.
28953
dff830c84726 Add function "dir_encoding" to set a file encoding per directory (bug #49685).
Markus Mützel <markus.muetzel@gmx.de>
parents: 28583
diff changeset
560
32628
ae4e19c0a2b1 maint: Place class name and class keyword on one line.
Rik <rik@octave.org>
parents: 31855
diff changeset
561 class comment_buffer
31607
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
562 {
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
563 public:
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
564
31771
21f9b34eb893 maint: Eliminate "(void)" in C++ function prototypes/declarations.
Rik <rik@octave.org>
parents: 31707
diff changeset
565 comment_buffer () : m_comment_list (nullptr) { }
31607
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
566
31855
1daf8bfceac3 default or disable more ctors, dtors, and assignment ops
John W. Eaton <jwe@octave.org>
parents: 31837
diff changeset
567 OCTAVE_DISABLE_COPY_MOVE (comment_buffer)
1daf8bfceac3 default or disable more ctors, dtors, and assignment ops
John W. Eaton <jwe@octave.org>
parents: 31837
diff changeset
568
31771
21f9b34eb893 maint: Eliminate "(void)" in C++ function prototypes/declarations.
Rik <rik@octave.org>
parents: 31707
diff changeset
569 ~comment_buffer () { delete m_comment_list; }
31607
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
570
32917
f41297ca3e1a when parsing, record whether a comment uses a '#' delimeter
John W. Eaton <jwe@octave.org>
parents: 32892
diff changeset
571 void append (const std::string& s, comment_elt::comment_type t, bool uses_hash_char)
31607
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
572 {
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
573 if (! m_comment_list)
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
574 m_comment_list = new comment_list ();
17693
efbe746f8fa8 eliminate octave_comment_buffer singleton
John W. Eaton <jwe@octave.org>
parents: 16898
diff changeset
575
32917
f41297ca3e1a when parsing, record whether a comment uses a '#' delimeter
John W. Eaton <jwe@octave.org>
parents: 32892
diff changeset
576 m_comment_list->append (s, t, uses_hash_char);
31607
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
577 }
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
578
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
579 // Caller is expected to delete the returned value.
22869
f75d289645ec make deleted functions public
John W. Eaton <jwe@octave.org>
parents: 22868
diff changeset
580
31771
21f9b34eb893 maint: Eliminate "(void)" in C++ function prototypes/declarations.
Rik <rik@octave.org>
parents: 31707
diff changeset
581 comment_list * get_comment ()
31607
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
582 {
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
583 comment_list *retval = m_comment_list;
22869
f75d289645ec make deleted functions public
John W. Eaton <jwe@octave.org>
parents: 22868
diff changeset
584
31607
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
585 m_comment_list = nullptr;
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
586
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
587 return retval;
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
588 }
22869
f75d289645ec make deleted functions public
John W. Eaton <jwe@octave.org>
parents: 22868
diff changeset
589
31771
21f9b34eb893 maint: Eliminate "(void)" in C++ function prototypes/declarations.
Rik <rik@octave.org>
parents: 31707
diff changeset
590 void reset ()
17693
efbe746f8fa8 eliminate octave_comment_buffer singleton
John W. Eaton <jwe@octave.org>
parents: 16898
diff changeset
591 {
31607
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
592 delete m_comment_list;
22196
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator
John W. Eaton <jwe@octave.org>
parents: 21814
diff changeset
593
31607
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
594 m_comment_list = nullptr;
22196
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator
John W. Eaton <jwe@octave.org>
parents: 21814
diff changeset
595 }
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator
John W. Eaton <jwe@octave.org>
parents: 21814
diff changeset
596
31607
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
597 private:
22196
dd992fd74fce put parser, lexer, and evaluator in namespace; interpreter now owns evaluator
John W. Eaton <jwe@octave.org>
parents: 21814
diff changeset
598
31607
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
599 comment_list *m_comment_list;
17693
efbe746f8fa8 eliminate octave_comment_buffer singleton
John W. Eaton <jwe@octave.org>
parents: 16898
diff changeset
600 };
efbe746f8fa8 eliminate octave_comment_buffer singleton
John W. Eaton <jwe@octave.org>
parents: 16898
diff changeset
601
31607
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
602 base_lexer (interpreter& interp)
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
603 : lexical_feedback (interp), m_scanner (nullptr), m_input_buf (),
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
604 m_comment_buf ()
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
605 {
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
606 init ();
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
607 }
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
608
31855
1daf8bfceac3 default or disable more ctors, dtors, and assignment ops
John W. Eaton <jwe@octave.org>
parents: 31837
diff changeset
609 OCTAVE_DISABLE_CONSTRUCT_COPY_MOVE (base_lexer)
31607
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
610
31771
21f9b34eb893 maint: Eliminate "(void)" in C++ function prototypes/declarations.
Rik <rik@octave.org>
parents: 31707
diff changeset
611 virtual ~base_lexer ();
31607
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
612
31771
21f9b34eb893 maint: Eliminate "(void)" in C++ function prototypes/declarations.
Rik <rik@octave.org>
parents: 31707
diff changeset
613 void init ();
31607
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
614
31771
21f9b34eb893 maint: Eliminate "(void)" in C++ function prototypes/declarations.
Rik <rik@octave.org>
parents: 31707
diff changeset
615 virtual bool is_push_lexer () const { return false; }
31607
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
616
31771
21f9b34eb893 maint: Eliminate "(void)" in C++ function prototypes/declarations.
Rik <rik@octave.org>
parents: 31707
diff changeset
617 virtual void reset ();
31607
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
618
31771
21f9b34eb893 maint: Eliminate "(void)" in C++ function prototypes/declarations.
Rik <rik@octave.org>
parents: 31707
diff changeset
619 void prep_for_file ();
31607
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
620
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
621 void begin_string (int state);
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
622
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
623 virtual int fill_flex_buffer (char *buf, unsigned int max_size) = 0;
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
624
31771
21f9b34eb893 maint: Eliminate "(void)" in C++ function prototypes/declarations.
Rik <rik@octave.org>
parents: 31707
diff changeset
625 bool at_end_of_buffer () const { return m_input_buf.empty (); }
31607
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
626
31771
21f9b34eb893 maint: Eliminate "(void)" in C++ function prototypes/declarations.
Rik <rik@octave.org>
parents: 31707
diff changeset
627 bool at_end_of_file () const { return m_input_buf.at_eof (); }
31607
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
628
31771
21f9b34eb893 maint: Eliminate "(void)" in C++ function prototypes/declarations.
Rik <rik@octave.org>
parents: 31707
diff changeset
629 int handle_end_of_input ();
28583
96e7dc4c2214 improve Matlab compatibility for binary and hexadecimal constants
John W. Eaton <jwe@octave.org>
parents: 28565
diff changeset
630
31771
21f9b34eb893 maint: Eliminate "(void)" in C++ function prototypes/declarations.
Rik <rik@octave.org>
parents: 31707
diff changeset
631 char * flex_yytext ();
31607
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
632
31771
21f9b34eb893 maint: Eliminate "(void)" in C++ function prototypes/declarations.
Rik <rik@octave.org>
parents: 31707
diff changeset
633 int flex_yyleng ();
31607
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
634
31771
21f9b34eb893 maint: Eliminate "(void)" in C++ function prototypes/declarations.
Rik <rik@octave.org>
parents: 31707
diff changeset
635 int text_yyinput ();
31607
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
636
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
637 void xunput (char c, char *buf);
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
638
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
639 void xunput (char c);
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
640
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
641 void update_token_positions (int tok_len);
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
642
31771
21f9b34eb893 maint: Eliminate "(void)" in C++ function prototypes/declarations.
Rik <rik@octave.org>
parents: 31707
diff changeset
643 bool looking_at_space ();
31607
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
644
31771
21f9b34eb893 maint: Eliminate "(void)" in C++ function prototypes/declarations.
Rik <rik@octave.org>
parents: 31707
diff changeset
645 bool inside_any_object_index ();
31607
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
646
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
647 int make_keyword_token (const std::string& s);
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
648
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
649 bool fq_identifier_contains_keyword (const std::string& s);
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
650
31771
21f9b34eb893 maint: Eliminate "(void)" in C++ function prototypes/declarations.
Rik <rik@octave.org>
parents: 31707
diff changeset
651 bool whitespace_is_significant ();
31607
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
652
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
653 // We only provide specializations with base equal to 2, 10, or 16.
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
654 template <int base>
31771
21f9b34eb893 maint: Eliminate "(void)" in C++ function prototypes/declarations.
Rik <rik@octave.org>
parents: 31707
diff changeset
655 int handle_number ();
31607
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
656
31771
21f9b34eb893 maint: Eliminate "(void)" in C++ function prototypes/declarations.
Rik <rik@octave.org>
parents: 31707
diff changeset
657 void handle_continuation ();
31607
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
658
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
659 void finish_comment (comment_elt::comment_type typ);
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
660
31771
21f9b34eb893 maint: Eliminate "(void)" in C++ function prototypes/declarations.
Rik <rik@octave.org>
parents: 31707
diff changeset
661 comment_list * get_comment () { return m_comment_buf.get_comment (); }
31607
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
662
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
663 int handle_close_bracket (int bracket_type);
16113
7c5e5e97a3bc move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents: 16111
diff changeset
664
31771
21f9b34eb893 maint: Eliminate "(void)" in C++ function prototypes/declarations.
Rik <rik@octave.org>
parents: 31707
diff changeset
665 bool looks_like_command_arg ();
31607
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
666
31771
21f9b34eb893 maint: Eliminate "(void)" in C++ function prototypes/declarations.
Rik <rik@octave.org>
parents: 31707
diff changeset
667 int handle_superclass_identifier ();
31607
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
668
31771
21f9b34eb893 maint: Eliminate "(void)" in C++ function prototypes/declarations.
Rik <rik@octave.org>
parents: 31707
diff changeset
669 int handle_meta_identifier ();
31607
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
670
31771
21f9b34eb893 maint: Eliminate "(void)" in C++ function prototypes/declarations.
Rik <rik@octave.org>
parents: 31707
diff changeset
671 int handle_fq_identifier ();
31607
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
672
31771
21f9b34eb893 maint: Eliminate "(void)" in C++ function prototypes/declarations.
Rik <rik@octave.org>
parents: 31707
diff changeset
673 int handle_identifier ();
31607
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
674
32917
f41297ca3e1a when parsing, record whether a comment uses a '#' delimeter
John W. Eaton <jwe@octave.org>
parents: 32892
diff changeset
675 void check_comment_for_hash_char (const char *txt, std::size_t len);
f41297ca3e1a when parsing, record whether a comment uses a '#' delimeter
John W. Eaton <jwe@octave.org>
parents: 32892
diff changeset
676
31607
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
677 void maybe_warn_separator_insert (char sep);
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
678
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
679 void warn_language_extension (const std::string& msg);
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
680
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
681 void maybe_warn_language_extension_comment (char c);
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
682
31771
21f9b34eb893 maint: Eliminate "(void)" in C++ function prototypes/declarations.
Rik <rik@octave.org>
parents: 31707
diff changeset
683 void warn_language_extension_continuation ();
31607
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
684
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
685 void warn_language_extension_operator (const std::string& op);
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
686
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
687 void warn_deprecated_syntax (const std::string& msg);
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
688
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
689 void push_token (token *);
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
690
31771
21f9b34eb893 maint: Eliminate "(void)" in C++ function prototypes/declarations.
Rik <rik@octave.org>
parents: 31707
diff changeset
691 token * current_token ();
31607
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
692
31771
21f9b34eb893 maint: Eliminate "(void)" in C++ function prototypes/declarations.
Rik <rik@octave.org>
parents: 31707
diff changeset
693 std::size_t pending_token_count () const;
31607
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
694
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
695 void display_token (int tok);
16253
a89cf57ba3a5 partial cleanup of continuation handling in lexer
John W. Eaton <jwe@octave.org>
parents: 16231
diff changeset
696
31607
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
697 void fatal_error (const char *msg);
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
698
31771
21f9b34eb893 maint: Eliminate "(void)" in C++ function prototypes/declarations.
Rik <rik@octave.org>
parents: 31707
diff changeset
699 bool debug_flag () const;
31607
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
700
31771
21f9b34eb893 maint: Eliminate "(void)" in C++ function prototypes/declarations.
Rik <rik@octave.org>
parents: 31707
diff changeset
701 bool display_tokens () const;
31607
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
702
31771
21f9b34eb893 maint: Eliminate "(void)" in C++ function prototypes/declarations.
Rik <rik@octave.org>
parents: 31707
diff changeset
703 void increment_token_count ();
31607
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
704
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
705 void lexer_debug (const char *pattern);
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
706
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
707 // Internal state of the flex-generated lexer.
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
708 void *m_scanner;
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
709
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
710 // Object that reads and buffers input.
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
711 input_buffer m_input_buf;
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
712
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
713 // Object that collects comment text.
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
714 comment_buffer m_comment_buf;
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
715
31771
21f9b34eb893 maint: Eliminate "(void)" in C++ function prototypes/declarations.
Rik <rik@octave.org>
parents: 31707
diff changeset
716 virtual std::string input_source () const { return "unknown"; }
31607
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
717
31771
21f9b34eb893 maint: Eliminate "(void)" in C++ function prototypes/declarations.
Rik <rik@octave.org>
parents: 31707
diff changeset
718 virtual bool input_from_terminal () const { return false; }
31607
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
719
31771
21f9b34eb893 maint: Eliminate "(void)" in C++ function prototypes/declarations.
Rik <rik@octave.org>
parents: 31707
diff changeset
720 virtual bool input_from_file () const { return false; }
31607
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
721
31771
21f9b34eb893 maint: Eliminate "(void)" in C++ function prototypes/declarations.
Rik <rik@octave.org>
parents: 31707
diff changeset
722 virtual bool input_from_eval_string () const { return false; }
31607
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
723
31771
21f9b34eb893 maint: Eliminate "(void)" in C++ function prototypes/declarations.
Rik <rik@octave.org>
parents: 31707
diff changeset
724 bool input_from_tmp_history_file ();
31607
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
725
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
726 void push_start_state (int state);
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
727
31771
21f9b34eb893 maint: Eliminate "(void)" in C++ function prototypes/declarations.
Rik <rik@octave.org>
parents: 31707
diff changeset
728 void pop_start_state ();
31607
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
729
31771
21f9b34eb893 maint: Eliminate "(void)" in C++ function prototypes/declarations.
Rik <rik@octave.org>
parents: 31707
diff changeset
730 void clear_start_state ();
16113
7c5e5e97a3bc move static lexer helper functions to lexical_feedback class
John W. Eaton <jwe@octave.org>
parents: 16111
diff changeset
731
31771
21f9b34eb893 maint: Eliminate "(void)" in C++ function prototypes/declarations.
Rik <rik@octave.org>
parents: 31707
diff changeset
732 int start_state () const { return start_state_stack.top (); }
31607
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
733
31771
21f9b34eb893 maint: Eliminate "(void)" in C++ function prototypes/declarations.
Rik <rik@octave.org>
parents: 31707
diff changeset
734 void display_start_state () const;
31607
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
735
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
736 bool maybe_unput_comma_before_unary_op (int tok);
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
737
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
738 int handle_op (int tok, bool bos = false, bool compat = true);
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
739
31771
21f9b34eb893 maint: Eliminate "(void)" in C++ function prototypes/declarations.
Rik <rik@octave.org>
parents: 31707
diff changeset
740 int finish_command_arg ();
31607
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
741
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
742 int handle_token (int tok, token *tok_val = nullptr);
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
743
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
744 int count_token (int tok);
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
745
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
746 int count_token_internal (int tok);
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
747
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
748 int show_token (int tok);
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
749
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
750 protected:
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
751
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
752 std::stack<int> start_state_stack;
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
753 };
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
754
32628
ae4e19c0a2b1 maint: Place class name and class keyword on one line.
Rik <rik@octave.org>
parents: 31855
diff changeset
755 class lexer : public base_lexer
31607
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
756 {
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
757 public:
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
758
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
759 lexer (interpreter& interp)
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
760 : base_lexer (interp), m_reader (interp), m_initial_input (true)
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
761 { }
16209
e7ff32e7cf82 move global promptflag variable to octave_reader class
John W. Eaton <jwe@octave.org>
parents: 16207
diff changeset
762
31607
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
763 lexer (FILE *file, interpreter& interp)
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
764 : base_lexer (interp), m_reader (interp, file), m_initial_input (true)
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
765 { }
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
766
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
767 lexer (FILE *file, interpreter& interp, const std::string& encoding)
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
768 : base_lexer (interp), m_reader (interp, file, encoding),
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
769 m_initial_input (true)
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
770 { }
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
771
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
772 lexer (const std::string& eval_string, interpreter& interp)
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
773 : base_lexer (interp), m_reader (interp, eval_string),
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
774 m_initial_input (true)
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
775 { }
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
776
31855
1daf8bfceac3 default or disable more ctors, dtors, and assignment ops
John W. Eaton <jwe@octave.org>
parents: 31837
diff changeset
777 OCTAVE_DISABLE_CONSTRUCT_COPY_MOVE (lexer)
1daf8bfceac3 default or disable more ctors, dtors, and assignment ops
John W. Eaton <jwe@octave.org>
parents: 31837
diff changeset
778
1daf8bfceac3 default or disable more ctors, dtors, and assignment ops
John W. Eaton <jwe@octave.org>
parents: 31837
diff changeset
779 ~lexer () = default;
31607
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
780
31771
21f9b34eb893 maint: Eliminate "(void)" in C++ function prototypes/declarations.
Rik <rik@octave.org>
parents: 31707
diff changeset
781 void reset ()
31607
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
782 {
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
783 m_initial_input = true;
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
784
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
785 base_lexer::reset ();
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
786 }
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
787
31771
21f9b34eb893 maint: Eliminate "(void)" in C++ function prototypes/declarations.
Rik <rik@octave.org>
parents: 31707
diff changeset
788 std::string input_source () const
31607
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
789 {
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
790 return m_reader.input_source ();
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
791 }
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
792
31771
21f9b34eb893 maint: Eliminate "(void)" in C++ function prototypes/declarations.
Rik <rik@octave.org>
parents: 31707
diff changeset
793 bool input_from_terminal () const
31607
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
794 {
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
795 return m_reader.input_from_terminal ();
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
796 }
16224
4a848eb52de2 use stack for tracking lexer start states
John W. Eaton <jwe@octave.org>
parents: 16209
diff changeset
797
31771
21f9b34eb893 maint: Eliminate "(void)" in C++ function prototypes/declarations.
Rik <rik@octave.org>
parents: 31707
diff changeset
798 bool input_from_file () const
31607
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
799 {
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
800 return m_reader.input_from_file ();
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
801 }
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
802
31771
21f9b34eb893 maint: Eliminate "(void)" in C++ function prototypes/declarations.
Rik <rik@octave.org>
parents: 31707
diff changeset
803 bool input_from_eval_string () const
31607
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
804 {
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
805 return m_reader.input_from_eval_string ();
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
806 }
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
807
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
808 int fill_flex_buffer (char *buf, unsigned int max_size);
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
809
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
810 input_reader m_reader;
22869
f75d289645ec make deleted functions public
John W. Eaton <jwe@octave.org>
parents: 22868
diff changeset
811
31607
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
812 // TRUE means we are filling the input buffer for the first time.
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
813 // Otherwise, we are requesting more input to complete the parse
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
814 // and, if printing a prompt, should use the secondary prompt
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
815 // string.
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
816
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
817 bool m_initial_input;
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
818 };
22869
f75d289645ec make deleted functions public
John W. Eaton <jwe@octave.org>
parents: 22868
diff changeset
819
31607
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
820 template <> int base_lexer::handle_number<2> ();
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
821 template <> int base_lexer::handle_number<10> ();
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
822 template <> int base_lexer::handle_number<16> ();
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
823
32628
ae4e19c0a2b1 maint: Place class name and class keyword on one line.
Rik <rik@octave.org>
parents: 31855
diff changeset
824 class push_lexer : public base_lexer
31607
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
825 {
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
826 public:
22869
f75d289645ec make deleted functions public
John W. Eaton <jwe@octave.org>
parents: 22868
diff changeset
827
31607
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
828 push_lexer (interpreter& interp)
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
829 : base_lexer (interp)
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
830 {
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
831 append_input ("", false);
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
832 }
16263
9acb86e6ac90 4/10 commits reworking the lexer
John W. Eaton <jwe@octave.org>
parents: 16259
diff changeset
833
31607
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
834 push_lexer (const std::string& input, interpreter& interp)
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
835 : base_lexer (interp)
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
836 {
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
837 append_input (input, false);
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
838 }
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
839
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
840 push_lexer (bool eof, interpreter& interp)
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
841 : base_lexer (interp)
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
842 {
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
843 append_input ("", eof);
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
844 }
16293
57e87ddfee14 create base class for lexer
John W. Eaton <jwe@octave.org>
parents: 16292
diff changeset
845
31607
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
846 push_lexer (const std::string& input, bool eof, interpreter& interp)
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
847 : base_lexer (interp)
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
848 {
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
849 append_input (input, eof);
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
850 }
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
851
31855
1daf8bfceac3 default or disable more ctors, dtors, and assignment ops
John W. Eaton <jwe@octave.org>
parents: 31837
diff changeset
852 OCTAVE_DISABLE_CONSTRUCT_COPY_MOVE (push_lexer)
1daf8bfceac3 default or disable more ctors, dtors, and assignment ops
John W. Eaton <jwe@octave.org>
parents: 31837
diff changeset
853
1daf8bfceac3 default or disable more ctors, dtors, and assignment ops
John W. Eaton <jwe@octave.org>
parents: 31837
diff changeset
854 ~push_lexer () = default;
31607
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
855
31771
21f9b34eb893 maint: Eliminate "(void)" in C++ function prototypes/declarations.
Rik <rik@octave.org>
parents: 31707
diff changeset
856 bool is_push_lexer () const { return true; }
31607
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
857
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
858 void append_input (const std::string& input, bool eof);
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
859
31771
21f9b34eb893 maint: Eliminate "(void)" in C++ function prototypes/declarations.
Rik <rik@octave.org>
parents: 31707
diff changeset
860 std::string input_source () const { return "push buffer"; }
31607
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
861
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
862 int fill_flex_buffer (char *buf, unsigned int max_size);
aac27ad79be6 maint: Re-indent code after switch to using namespace macros.
Rik <rik@octave.org>
parents: 31605
diff changeset
863 };
31605
e88a07dec498 maint: Use macros to begin/end C++ namespaces.
Rik <rik@octave.org>
parents: 31479
diff changeset
864
e88a07dec498 maint: Use macros to begin/end C++ namespaces.
Rik <rik@octave.org>
parents: 31479
diff changeset
865 OCTAVE_END_NAMESPACE(octave)
16294
0925d1f6875e push parser/lexer interface
John W. Eaton <jwe@octave.org>
parents: 16293
diff changeset
866
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
867 #endif