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Add Lexer class

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This commit is contained in:
Josh Holtrop 2021-07-05 19:13:41 -04:00
parent 2f1cb47bea
commit 91d6ee25ea
1 changed files with 41 additions and 38 deletions
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9
assets/parser.d.erb
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@ -69,6 +69,8 @@ class <%= classname %>
} }
} }
class Lexer
{
enum enum
{ {
<% @grammar.tokens.each_with_index do |token, index| %> <% @grammar.tokens.each_with_index do |token, index| %>
@ -95,7 +97,7 @@ class <%= classname %>
uint destination; uint destination;
} }
private struct LexerState private struct State
{ {
uint transition_table_index; uint transition_table_index;
uint n_transitions; uint n_transitions;
@ -109,9 +111,9 @@ class <%= classname %>
<% end %> <% end %>
]; ];
private static const LexerState lexer_states[] = [ private static const State states[] = [
<% state_table.each do |state_table_entry| %> <% state_table.each do |state_table_entry| %>
LexerState(<%= state_table_entry[:transition_table_index] %>u, <%= state_table_entry[:n_transitions] %>u, <%= state_table_entry[:accepts] %>u), State(<%= state_table_entry[:transition_table_index] %>u, <%= state_table_entry[:n_transitions] %>u, <%= state_table_entry[:accepts] %>u),
<% end %> <% end %>
]; ];
@ -133,3 +135,4 @@ class <%= classname %>
return null; return null;
} }
} }
}