// $ANTLR 2.7.6 (2005-12-22): "iupac_grammar.g" -> "IupacLexer.java"$
package org.eurocarbdb.sugar.seq.grammar;
import org.eurocarbdb.sugar.seq.grammar.IupacParserAdaptor;
import org.eurocarbdb.sugar.seq.grammar.ParserAdaptor;
import org.eurocarbdb.sugar.seq.grammar.ResidueToken;
import org.eurocarbdb.sugar.seq.grammar.LinkageToken;
import java.io.InputStream;
import antlr.TokenStreamException;
import antlr.TokenStreamIOException;
import antlr.TokenStreamRecognitionException;
import antlr.CharStreamException;
import antlr.CharStreamIOException;
import antlr.ANTLRException;
import java.io.Reader;
import java.util.Hashtable;
import antlr.CharScanner;
import antlr.InputBuffer;
import antlr.ByteBuffer;
import antlr.CharBuffer;
import antlr.Token;
import antlr.CommonToken;
import antlr.RecognitionException;
import antlr.NoViableAltForCharException;
import antlr.MismatchedCharException;
import antlr.TokenStream;
import antlr.ANTLRHashString;
import antlr.LexerSharedInputState;
import antlr.collections.impl.BitSet;
import antlr.SemanticException;
/**
*
* This class implements a lexer/scanner for carbohydrate
* sequences in Iupac syntax. This class was auto-generated from
* the ANTLR lexer grammar in iupac_grammar.g.
*
* @see IupacParser
* @see iupac_grammar.g
*
* @author mjh [glycoslave@gmail.com]
*/
public class IupacLexer extends antlr.CharScanner implements IupacParserTokenTypes, TokenStream
{
public IupacLexer(InputStream in) {
this(new ByteBuffer(in));
}
public IupacLexer(Reader in) {
this(new CharBuffer(in));
}
public IupacLexer(InputBuffer ib) {
this(new LexerSharedInputState(ib));
}
public IupacLexer(LexerSharedInputState state) {
super(state);
caseSensitiveLiterals = true;
setCaseSensitive(true);
literals = new Hashtable();
}
public Token nextToken() throws TokenStreamException {
Token theRetToken=null;
tryAgain:
for (;;) {
Token _token = null;
int _ttype = Token.INVALID_TYPE;
resetText();
try { // for char stream error handling
try { // for lexical error handling
switch ( LA(1)) {
case '[':
{
mOPENING_BRANCH_DELIM(true);
theRetToken=_returnToken;
break;
}
case ']':
{
mCLOSING_BRANCH_DELIM(true);
theRetToken=_returnToken;
break;
}
case '(':
{
mOPENING_LINKAGE_DELIM(true);
theRetToken=_returnToken;
break;
}
case '-':
{
mINTERNAL_DELIM(true);
theRetToken=_returnToken;
break;
}
case ')':
{
mCLOSING_LINKAGE_DELIM(true);
theRetToken=_returnToken;
break;
}
case '{':
{
mOPENING_REPEAT_DELIM(true);
theRetToken=_returnToken;
break;
}
case '}':
{
mCLOSING_REPEAT_DELIM(true);
theRetToken=_returnToken;
break;
}
case ':':
{
mREPEAT_RANGE_DELIM(true);
theRetToken=_returnToken;
break;
}
case 'A': case 'B': case 'C': case 'D':
case 'E': case 'F': case 'G': case 'H':
case 'I': case 'J': case 'K': case 'L':
case 'M': case 'N': case 'O': case 'P':
case 'Q': case 'R': case 'S': case 'T':
case 'U': case 'V': case 'W': case 'X':
case 'Y': case 'Z':
{
mRESIDUE(true);
theRetToken=_returnToken;
break;
}
case 'a': case 'b':
{
mANOMER(true);
theRetToken=_returnToken;
break;
}
case '?':
{
mUNKNOWN_TERMINUS(true);
theRetToken=_returnToken;
break;
}
case 'u':
{
mUNKNOWN_ANOMER(true);
theRetToken=_returnToken;
break;
}
case '|':
{
mLOGICAL_OR(true);
theRetToken=_returnToken;
break;
}
case '1': case '2': case '3': case '4':
case '5': case '6': case '7': case '8':
case '9':
{
mNUMBER(true);
theRetToken=_returnToken;
break;
}
case ',':
{
mCOMMA(true);
theRetToken=_returnToken;
break;
}
case '\n': case '\r':
{
mNEWLINE(true);
theRetToken=_returnToken;
break;
}
default:
{
if (LA(1)==EOF_CHAR) {uponEOF(); _returnToken = makeToken(Token.EOF_TYPE);}
else {throw new NoViableAltForCharException((char)LA(1), getFilename(), getLine(), getColumn());}
}
}
if ( _returnToken==null ) continue tryAgain; // found SKIP token
_ttype = _returnToken.getType();
_ttype = testLiteralsTable(_ttype);
_returnToken.setType(_ttype);
return _returnToken;
}
catch (RecognitionException e) {
throw new TokenStreamRecognitionException(e);
}
}
catch (CharStreamException cse) {
if ( cse instanceof CharStreamIOException ) {
throw new TokenStreamIOException(((CharStreamIOException)cse).io);
}
else {
throw new TokenStreamException(cse.getMessage());
}
}
}
}
public final void mOPENING_BRANCH_DELIM(boolean _createToken) throws RecognitionException, CharStreamException, TokenStreamException {
int _ttype; Token _token=null; int _begin=text.length();
_ttype = OPENING_BRANCH_DELIM;
int _saveIndex;
match('[');
if ( _createToken && _token==null && _ttype!=Token.SKIP ) {
_token = makeToken(_ttype);
_token.setText(new String(text.getBuffer(), _begin, text.length()-_begin));
}
_returnToken = _token;
}
public final void mCLOSING_BRANCH_DELIM(boolean _createToken) throws RecognitionException, CharStreamException, TokenStreamException {
int _ttype; Token _token=null; int _begin=text.length();
_ttype = CLOSING_BRANCH_DELIM;
int _saveIndex;
match(']');
if ( _createToken && _token==null && _ttype!=Token.SKIP ) {
_token = makeToken(_ttype);
_token.setText(new String(text.getBuffer(), _begin, text.length()-_begin));
}
_returnToken = _token;
}
public final void mOPENING_LINKAGE_DELIM(boolean _createToken) throws RecognitionException, CharStreamException, TokenStreamException {
int _ttype; Token _token=null; int _begin=text.length();
_ttype = OPENING_LINKAGE_DELIM;
int _saveIndex;
match('(');
if ( _createToken && _token==null && _ttype!=Token.SKIP ) {
_token = makeToken(_ttype);
_token.setText(new String(text.getBuffer(), _begin, text.length()-_begin));
}
_returnToken = _token;
}
public final void mINTERNAL_DELIM(boolean _createToken) throws RecognitionException, CharStreamException, TokenStreamException {
int _ttype; Token _token=null; int _begin=text.length();
_ttype = INTERNAL_DELIM;
int _saveIndex;
match('-');
if ( _createToken && _token==null && _ttype!=Token.SKIP ) {
_token = makeToken(_ttype);
_token.setText(new String(text.getBuffer(), _begin, text.length()-_begin));
}
_returnToken = _token;
}
public final void mCLOSING_LINKAGE_DELIM(boolean _createToken) throws RecognitionException, CharStreamException, TokenStreamException {
int _ttype; Token _token=null; int _begin=text.length();
_ttype = CLOSING_LINKAGE_DELIM;
int _saveIndex;
match(')');
if ( _createToken && _token==null && _ttype!=Token.SKIP ) {
_token = makeToken(_ttype);
_token.setText(new String(text.getBuffer(), _begin, text.length()-_begin));
}
_returnToken = _token;
}
public final void mOPENING_REPEAT_DELIM(boolean _createToken) throws RecognitionException, CharStreamException, TokenStreamException {
int _ttype; Token _token=null; int _begin=text.length();
_ttype = OPENING_REPEAT_DELIM;
int _saveIndex;
match('{');
if ( _createToken && _token==null && _ttype!=Token.SKIP ) {
_token = makeToken(_ttype);
_token.setText(new String(text.getBuffer(), _begin, text.length()-_begin));
}
_returnToken = _token;
}
public final void mCLOSING_REPEAT_DELIM(boolean _createToken) throws RecognitionException, CharStreamException, TokenStreamException {
int _ttype; Token _token=null; int _begin=text.length();
_ttype = CLOSING_REPEAT_DELIM;
int _saveIndex;
match('}');
if ( _createToken && _token==null && _ttype!=Token.SKIP ) {
_token = makeToken(_ttype);
_token.setText(new String(text.getBuffer(), _begin, text.length()-_begin));
}
_returnToken = _token;
}
public final void mREPEAT_RANGE_DELIM(boolean _createToken) throws RecognitionException, CharStreamException, TokenStreamException {
int _ttype; Token _token=null; int _begin=text.length();
_ttype = REPEAT_RANGE_DELIM;
int _saveIndex;
match(':');
if ( _createToken && _token==null && _ttype!=Token.SKIP ) {
_token = makeToken(_ttype);
_token.setText(new String(text.getBuffer(), _begin, text.length()-_begin));
}
_returnToken = _token;
}
public final void mRESIDUE(boolean _createToken) throws RecognitionException, CharStreamException, TokenStreamException {
int _ttype; Token _token=null; int _begin=text.length();
_ttype = RESIDUE;
int _saveIndex;
matchRange('A','Z');
{
_loop50:
do {
switch ( LA(1)) {
case 'A': case 'B': case 'C': case 'D':
case 'E': case 'F': case 'G': case 'H':
case 'I': case 'J': case 'K': case 'L':
case 'M': case 'N': case 'O': case 'P':
case 'Q': case 'R': case 'S': case 'T':
case 'U': case 'V': case 'W': case 'X':
case 'Y': case 'Z':
{
matchRange('A','Z');
break;
}
case 'a': case 'b': case 'c': case 'd':
case 'e': case 'f': case 'g': case 'h':
case 'i': case 'j': case 'k': case 'l':
case 'm': case 'n': case 'o': case 'p':
case 'q': case 'r': case 's': case 't':
case 'u': case 'v': case 'w': case 'x':
case 'y': case 'z':
{
matchRange('a','z');
break;
}
case '0': case '1': case '2': case '3':
case '4': case '5': case '6': case '7':
case '8': case '9':
{
matchRange('0','9');
break;
}
default:
{
break _loop50;
}
}
} while (true);
}
if ( _createToken && _token==null && _ttype!=Token.SKIP ) {
_token = makeToken(_ttype);
_token.setText(new String(text.getBuffer(), _begin, text.length()-_begin));
}
_returnToken = _token;
}
public final void mANOMER(boolean _createToken) throws RecognitionException, CharStreamException, TokenStreamException {
int _ttype; Token _token=null; int _begin=text.length();
_ttype = ANOMER;
int _saveIndex;
{
switch ( LA(1)) {
case 'a':
{
match('a');
break;
}
case 'b':
{
match('b');
break;
}
default:
{
throw new NoViableAltForCharException((char)LA(1), getFilename(), getLine(), getColumn());
}
}
}
if ( _createToken && _token==null && _ttype!=Token.SKIP ) {
_token = makeToken(_ttype);
_token.setText(new String(text.getBuffer(), _begin, text.length()-_begin));
}
_returnToken = _token;
}
public final void mUNKNOWN_TERMINUS(boolean _createToken) throws RecognitionException, CharStreamException, TokenStreamException {
int _ttype; Token _token=null; int _begin=text.length();
_ttype = UNKNOWN_TERMINUS;
int _saveIndex;
match('?');
if ( _createToken && _token==null && _ttype!=Token.SKIP ) {
_token = makeToken(_ttype);
_token.setText(new String(text.getBuffer(), _begin, text.length()-_begin));
}
_returnToken = _token;
}
public final void mUNKNOWN_ANOMER(boolean _createToken) throws RecognitionException, CharStreamException, TokenStreamException {
int _ttype; Token _token=null; int _begin=text.length();
_ttype = UNKNOWN_ANOMER;
int _saveIndex;
match('u');
if ( _createToken && _token==null && _ttype!=Token.SKIP ) {
_token = makeToken(_ttype);
_token.setText(new String(text.getBuffer(), _begin, text.length()-_begin));
}
_returnToken = _token;
}
public final void mLOGICAL_OR(boolean _createToken) throws RecognitionException, CharStreamException, TokenStreamException {
int _ttype; Token _token=null; int _begin=text.length();
_ttype = LOGICAL_OR;
int _saveIndex;
match('|');
if ( _createToken && _token==null && _ttype!=Token.SKIP ) {
_token = makeToken(_ttype);
_token.setText(new String(text.getBuffer(), _begin, text.length()-_begin));
}
_returnToken = _token;
}
public final void mNUMBER(boolean _createToken) throws RecognitionException, CharStreamException, TokenStreamException {
int _ttype; Token _token=null; int _begin=text.length();
_ttype = NUMBER;
int _saveIndex;
{
matchRange('1','9');
}
{
_loop59:
do {
if (((LA(1) >= '0' && LA(1) <= '9'))) {
matchRange('0','9');
}
else {
break _loop59;
}
} while (true);
}
if ( _createToken && _token==null && _ttype!=Token.SKIP ) {
_token = makeToken(_ttype);
_token.setText(new String(text.getBuffer(), _begin, text.length()-_begin));
}
_returnToken = _token;
}
public final void mCOMMA(boolean _createToken) throws RecognitionException, CharStreamException, TokenStreamException {
int _ttype; Token _token=null; int _begin=text.length();
_ttype = COMMA;
int _saveIndex;
match(',');
if ( _createToken && _token==null && _ttype!=Token.SKIP ) {
_token = makeToken(_ttype);
_token.setText(new String(text.getBuffer(), _begin, text.length()-_begin));
}
_returnToken = _token;
}
public final void mNEWLINE(boolean _createToken) throws RecognitionException, CharStreamException, TokenStreamException {
int _ttype; Token _token=null; int _begin=text.length();
_ttype = NEWLINE;
int _saveIndex;
switch ( LA(1)) {
case '\r':
{
match('\r');
match('\n');
break;
}
case '\n':
{
match('\n');
break;
}
default:
{
throw new NoViableAltForCharException((char)LA(1), getFilename(), getLine(), getColumn());
}
}
if ( _createToken && _token==null && _ttype!=Token.SKIP ) {
_token = makeToken(_ttype);
_token.setText(new String(text.getBuffer(), _begin, text.length()-_begin));
}
_returnToken = _token;
}
}