christoph/lecture-compilers
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implement grammaranalyzer

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ChUrl
2020-12-04 01:21:21 +01:00
parent 11a1591b9b
commit 2c4b95c438
6 changed files with 473 additions and 165 deletions
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20
src/main/java/parser/LL1ParsingTable.java
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@ -1,23 +1,23 @@
package parser;
import java.util.AbstractMap.SimpleEntry;
import java.util.List;
import java.util.Map;
import java.util.Map.Entry;
import java.util.Set;
public class LL1ParsingTable implements ILL1ParsingTable {
private final String start;
private final List<String> terminals;
private final List<String> nonterminals;
private final Set<String> terminals;
private final Set<String> nonterminals;
private final String epsilon;
private final Map<Entry<String, String>, ? extends List<String>> parsetable;
private final Map<Entry<String, String>, String> parsetable;
public LL1ParsingTable(List<String> nonterminals,
List<String> terminals,
public LL1ParsingTable(Set<String> nonterminals,
Set<String> terminals,
String start,
String epsilon,
Map<Entry<String, String>, ? extends List<String>> parsetable) {
Map<Entry<String, String>, String> parsetable) {
this.start = start;
this.terminals = terminals;
this.nonterminals = nonterminals;
@ -26,7 +26,7 @@ public class LL1ParsingTable implements ILL1ParsingTable {
}
@Override
public List<String> get(String nonterminal, String terminal) {
public String get(String nonterminal, String terminal) {
return this.parsetable.get(new SimpleEntry<>(nonterminal, terminal));
}
@ -36,12 +36,12 @@ public class LL1ParsingTable implements ILL1ParsingTable {
}
@Override
public List<String> getNonterminals() {
public Set<String> getNonterminals() {
return this.nonterminals;
}
@Override
public List<String> getTerminals() {
public Set<String> getTerminals() {
return this.terminals;
}