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Generate parse tables and code using pre-processed grammars

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This commit is contained in:
Max Brunsfeld 2014-01-03 22:42:05 -08:00
parent 2621f06315
commit 2afd8843dc
27 changed files with 272 additions and 285 deletions
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10
src/compiler/lr/transitions.cpp
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@ -10,7 +10,7 @@ namespace tree_sitter {
transition_map<Rule, Rule> value;
void visit(const Blank *rule) {
value = transition_map<Rule, Rule>();
value = transition_map<Rule, Rule>({{ blank(), blank() }});
}
void visit(const Character *rule) {
@ -20,7 +20,11 @@ namespace tree_sitter {
void visit(const Symbol *rule) {
value = transition_map<Rule, Rule>({{ rule->copy(), blank() }});
}
void visit(const Token *rule) {
value = transition_map<Rule, Rule>({{ rule->copy(), blank() }});
}
void visit(const Choice *rule) {
value = transitions(rule->left);
value.merge(transitions(rule->right), [&](rule_ptr left, rule_ptr right) -> rule_ptr {
@ -39,7 +43,7 @@ namespace tree_sitter {
void visit(const Repeat *rule) {
value = transitions(rule->content).map<Rule>([&](const rule_ptr &value) -> rule_ptr {
return seq({ value, choice({ repeat(rule->content), blank() }) });
return seq({ value, choice({ rule->copy(), blank() }) });
});
}