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Code Issues Releases Wiki Activity

Allow injection of different syntax into PDA

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This commit is contained in:
Paul Schaub 2022-10-27 13:13:27 +02:00
parent 161ce57711
commit 8cb7d19487
1 changed files with 14 additions and 4 deletions
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18
pgpainless-core/src/main/java/org/pgpainless/decryption_verification/syntax_check/PDA.java
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@ -8,6 +8,7 @@ import org.pgpainless.exception.MalformedOpenPgpMessageException;
import org.slf4j.Logger; import org.slf4j.Logger;
import org.slf4j.LoggerFactory; import org.slf4j.LoggerFactory;
import javax.annotation.Nonnull;
import java.util.ArrayList; import java.util.ArrayList;
import java.util.Arrays; import java.util.Arrays;
import java.util.List; import java.util.List;
@ -23,15 +24,24 @@ public class PDA {
// right now we implement what rfc4880 specifies. // right now we implement what rfc4880 specifies.
// TODO: Consider implementing what we proposed here: // TODO: Consider implementing what we proposed here:
// https://mailarchive.ietf.org/arch/msg/openpgp/uepOF6XpSegMO4c59tt9e5H1i4g/ // https://mailarchive.ietf.org/arch/msg/openpgp/uepOF6XpSegMO4c59tt9e5H1i4g/
private final Syntax syntax = new OpenPgpMessageSyntax(); private final Syntax syntax;
private final Stack<StackSymbol> stack = new Stack<>(); private final Stack<StackSymbol> stack = new Stack<>();
private final List<InputSymbol> inputs = new ArrayList<>(); // Track inputs for debugging / error reporting private final List<InputSymbol> inputs = new ArrayList<>(); // Track inputs for debugging / error reporting
private State state; private State state;
/**
*
*/
public PDA() { public PDA() {
state = State.OpenPgpMessage; this(new OpenPgpMessageSyntax(), State.OpenPgpMessage, terminus, msg);
pushStack(terminus); }
pushStack(msg);
public PDA(@Nonnull Syntax syntax, @Nonnull State initialState, @Nonnull StackSymbol... initialStack) {
this.syntax = syntax;
this.state = initialState;
for (StackSymbol symbol : initialStack) {
pushStack(symbol);
}
} }
public void next(InputSymbol input) throws MalformedOpenPgpMessageException { public void next(InputSymbol input) throws MalformedOpenPgpMessageException {