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Posted to dev@struts.apache.org by mr...@apache.org on 2005/08/26 07:46:58 UTC
svn commit: r240168 [20/30] - in /struts/sandbox/trunk/ti: ./
core/src/java/org/apache/ti/ core/src/java/org/apache/ti/config/
core/src/java/org/apache/ti/config/mapper/
core/src/java/org/apache/ti/core/ core/src/java/org/apache/ti/core/factory/
core/s...
Added: struts/sandbox/trunk/ti/core/src/java/org/apache/ti/script/el/ParsedExpression.java
URL: http://svn.apache.org/viewcvs/struts/sandbox/trunk/ti/core/src/java/org/apache/ti/script/el/ParsedExpression.java?rev=240168&view=auto
==============================================================================
--- struts/sandbox/trunk/ti/core/src/java/org/apache/ti/script/el/ParsedExpression.java (added)
+++ struts/sandbox/trunk/ti/core/src/java/org/apache/ti/script/el/ParsedExpression.java Thu Aug 25 22:46:03 2005
@@ -0,0 +1,169 @@
+/*
+ * Copyright 2004 The Apache Software Foundation.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ * $Header:$
+ */
+package org.apache.ti.script.el;
+
+import org.apache.ti.util.internal.InternalStringBuilder;
+import org.apache.ti.util.logging.Logger;
+
+import java.util.ArrayList;
+import java.util.Iterator;
+
+/**
+ *
+ */
+public class ParsedExpression {
+
+ private static Logger LOGGER = Logger.getInstance(ParsedExpression.class);
+
+ /* cache the debug status; this needs to be _fast_ */
+ private static final boolean DEBUG_ENABLED = LOGGER.isDebugEnabled();
+ private static final String EMPTY_STRING = "";
+
+ private ArrayList/*<Term>*/ _terms = new ArrayList/*<Term>*/(3);
+ private boolean _isExpression = false;
+ private boolean _containsExpression = false;
+ private ExpressionTerm _atomicExpression = null;
+ private Term[] _termArray = null;
+ private String _exprStr;
+
+ public void seal() {
+ _termArray = new Term[_terms.size()];
+
+ InternalStringBuilder buf = new InternalStringBuilder();
+ for (int i = 0; i < _terms.size(); i++) {
+ Term t = (Term) _terms.get(i);
+ t.seal();
+
+ if (t instanceof ExpressionTerm) {
+ if (_terms.size() == 1) {
+ _atomicExpression = (ExpressionTerm) _terms.get(0);
+ _isExpression = true;
+ }
+ _containsExpression = true;
+ } else if (t instanceof LiteralTerm) {
+ String lit = t.getExpressionString();
+ if (lit != null && lit.indexOf("{") > -1)
+ _containsExpression = true;
+ }
+
+ _termArray[i] = (Term) _terms.get(i);
+ buf.append(t.getExpressionString());
+ }
+ _exprStr = buf.toString();
+ }
+
+ public boolean isExpression() {
+ return _isExpression;
+ }
+
+ public boolean containsExpression() {
+ return _containsExpression;
+ }
+
+ public void addTerm(Term term) {
+ _terms.add(term);
+ }
+
+ public int getTokenCount() {
+ return _terms.size();
+ }
+
+ public Term getTerm(int i) {
+ assert _termArray != null;
+ assert i > 0 && i < _termArray.length;
+
+ return _termArray[i];
+ }
+
+ public ExpressionTerm getAtomicExpressionTerm() {
+ return _atomicExpression;
+ }
+
+ public Object evaluate(NetUIVariableResolver vr) {
+ if (DEBUG_ENABLED)
+ LOGGER.debug("evaluate expression: " + _exprStr);
+
+ if (_isExpression) {
+ if (DEBUG_ENABLED)
+ LOGGER.debug("atoimc expression");
+
+ return _atomicExpression.evaluate(vr);
+ } else {
+ InternalStringBuilder buf = new InternalStringBuilder();
+
+ for (int i = 0; i < _terms.size(); i++) {
+ if (DEBUG_ENABLED)
+ LOGGER.debug("term[" + i + "]: " + _termArray[i].getClass().getName() +
+ " expression string: " + _termArray[i].getExpressionString());
+
+ Object result = _termArray[i].evaluate(vr);
+
+ buf.append(result != null ? result.toString() : EMPTY_STRING);
+ }
+
+ return buf.toString();
+ }
+ }
+
+ public void update(Object value, NetUIVariableResolver vr) {
+ if (!_isExpression) {
+ String msg = "The expression can not be updated because it is not atomic.";
+ if (LOGGER.isErrorEnabled())
+ LOGGER.error(msg);
+ throw new RuntimeException(msg);
+ }
+
+ _atomicExpression.update(value, vr);
+ }
+
+ public String changeContext(String oldContext, String newContext, Object index) {
+ if (!_isExpression) {
+ String msg = "The expression can not change context because it is not atomic.";
+
+ if (LOGGER.isErrorEnabled())
+ LOGGER.error(msg);
+
+ throw new RuntimeException(msg);
+ }
+
+ return _atomicExpression.changeContext(oldContext, newContext, index);
+ }
+
+ public String qualify(String contextName) {
+ /* todo: could check to see if first term is literal */
+
+ return "{" + contextName + "." + getExpressionString() + "}";
+ }
+
+ // only call on atomic expressions
+ public String getExpressionString() {
+ if (_isExpression)
+ return _atomicExpression.getExpressionString();
+ else
+ return _exprStr;
+ }
+
+ public String toString() {
+ InternalStringBuilder builder = new InternalStringBuilder();
+ for (Iterator i = _terms.iterator(); i.hasNext();) {
+ Term term = (Term) i.next();
+ builder.append(term.toString());
+ }
+ return builder.toString();
+ }
+}
Added: struts/sandbox/trunk/ti/core/src/java/org/apache/ti/script/el/Term.java
URL: http://svn.apache.org/viewcvs/struts/sandbox/trunk/ti/core/src/java/org/apache/ti/script/el/Term.java?rev=240168&view=auto
==============================================================================
--- struts/sandbox/trunk/ti/core/src/java/org/apache/ti/script/el/Term.java (added)
+++ struts/sandbox/trunk/ti/core/src/java/org/apache/ti/script/el/Term.java Thu Aug 25 22:46:03 2005
@@ -0,0 +1,31 @@
+/*
+ * Copyright 2004 The Apache Software Foundation.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ * $Header:$
+ */
+package org.apache.ti.script.el;
+
+/**
+ *
+ */
+public interface Term {
+
+ public Object evaluate(NetUIVariableResolver vr);
+
+ public String getExpressionString();
+
+ public void seal();
+}
+
Added: struts/sandbox/trunk/ti/core/src/java/org/apache/ti/script/el/parser/NetUIELParser.java
URL: http://svn.apache.org/viewcvs/struts/sandbox/trunk/ti/core/src/java/org/apache/ti/script/el/parser/NetUIELParser.java?rev=240168&view=auto
==============================================================================
--- struts/sandbox/trunk/ti/core/src/java/org/apache/ti/script/el/parser/NetUIELParser.java (added)
+++ struts/sandbox/trunk/ti/core/src/java/org/apache/ti/script/el/parser/NetUIELParser.java Thu Aug 25 22:46:03 2005
@@ -0,0 +1,497 @@
+/*
+ * Copyright 2004 The Apache Software Foundation.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ * $Header:$
+ */
+package org.apache.ti.script.el.parser;
+
+import org.apache.ti.script.el.ExpressionTerm;
+import org.apache.ti.script.el.LiteralTerm;
+import org.apache.ti.script.el.ParsedExpression;
+import org.apache.ti.script.el.Term;
+import org.apache.ti.script.el.tokens.ArrayIndexToken;
+import org.apache.ti.script.el.tokens.ContextToken;
+import org.apache.ti.script.el.tokens.ExpressionToken;
+import org.apache.ti.script.el.tokens.IdentifierToken;
+import org.apache.ti.script.el.tokens.MapKeyToken;
+
+public class NetUIELParser
+ implements NetUIELParserConstants {
+
+ public static void main(String[] args)
+ throws Exception {
+ NetUIELParser parser = new NetUIELParser(System.in);
+ parser.parse();
+ }
+
+// 3.
+ final public ParsedExpression parse() throws ParseException {
+ Token t = null;
+ ParsedExpression pe = new ParsedExpression();
+ Term term = null;
+ label_1:
+ while (true) {
+ switch ((jj_ntk == -1) ? jj_ntk() : jj_ntk) {
+ case NON_EXPRESSION_TEXT:
+ case START_EXPRESSION:
+ case ESCAPED_START_EXPRESSION:
+ ;
+ break;
+ default:
+ jj_la1[0] = jj_gen;
+ break label_1;
+ }
+ switch ((jj_ntk == -1) ? jj_ntk() : jj_ntk) {
+ case NON_EXPRESSION_TEXT:
+ term = parseLiteralTerm();
+ pe.addTerm(term);
+ break;
+ case START_EXPRESSION:
+ jj_consume_token(START_EXPRESSION);
+ term = parseExpression();
+ jj_consume_token(END_EXPRESSION);
+ pe.addTerm(term);
+ break;
+ case ESCAPED_START_EXPRESSION:
+ jj_consume_token(ESCAPED_START_EXPRESSION);
+ term = parseExpression();
+ jj_consume_token(END_EXPRESSION);
+ pe.addTerm(new LiteralTerm("\\"));
+ pe.addTerm(term);
+ break;
+ default:
+ jj_la1[1] = jj_gen;
+ jj_consume_token(-1);
+ throw new ParseException();
+ }
+ }
+ jj_consume_token(0);
+ {
+ if (true) return pe;
+ }
+ throw new Error("Missing return statement in function");
+ }
+
+ final public LiteralTerm parseLiteralTerm() throws ParseException {
+ Token t = null;
+ LiteralTerm ls = null;
+ t = jj_consume_token(NON_EXPRESSION_TEXT);
+ ls = new LiteralTerm(t.image);
+ {
+ if (true) return ls;
+ }
+ throw new Error("Missing return statement in function");
+ }
+
+ final public ExpressionTerm parseExpression() throws ParseException {
+ ExpressionTerm expr = new ExpressionTerm();
+ ExpressionToken eTok = null;
+ eTok = Context();
+ expr.addToken(eTok);
+ label_2:
+ while (true) {
+ switch ((jj_ntk == -1) ? jj_ntk() : jj_ntk) {
+ case DOT:
+ case LBRACKET:
+ ;
+ break;
+ default:
+ jj_la1[2] = jj_gen;
+ break label_2;
+ }
+ switch ((jj_ntk == -1) ? jj_ntk() : jj_ntk) {
+ case DOT:
+ jj_consume_token(DOT);
+ eTok = ExprIdentifier();
+ break;
+ default:
+ jj_la1[3] = jj_gen;
+ if (jj_2_1(2)) {
+ eTok = MapKey();
+ } else {
+ switch ((jj_ntk == -1) ? jj_ntk() : jj_ntk) {
+ case LBRACKET:
+ eTok = ArrayIndex();
+ break;
+ default:
+ jj_la1[4] = jj_gen;
+ jj_consume_token(-1);
+ throw new ParseException();
+ }
+ }
+ }
+ {
+ expr.addToken(eTok);
+ }
+ }
+ expr.seal();
+ {
+ if (true) return expr;
+ }
+ throw new Error("Missing return statement in function");
+ }
+
+ final public ExpressionToken Context() throws ParseException {
+ Token t = null;
+ ExpressionToken eTok = null;
+ t = jj_consume_token(IDENTIFIER);
+//System.out.println("** Parser found context: " + t.image);
+ eTok = new ContextToken(t.image);
+ {
+ if (true) return eTok;
+ }
+ throw new Error("Missing return statement in function");
+ }
+
+ final public ExpressionToken ExprIdentifier() throws ParseException {
+ Token t = null;
+ ExpressionToken eTok = null;
+ t = jj_consume_token(IDENTIFIER);
+//System.out.println("** Parser found identifier: " + t.image);
+ eTok = new IdentifierToken(t.image);
+ {
+ if (true) return eTok;
+ }
+ throw new Error("Missing return statement in function");
+ }
+
+// handle text inside of map braces as ["..."] or ['...']
+ final public ExpressionToken MapKey() throws ParseException {
+ Token t = null;
+ ExpressionToken eTok = null;
+ jj_consume_token(LBRACKET);
+ t = jj_consume_token(STRING_LITERAL);
+ jj_consume_token(RBRACKET);
+ eTok = new MapKeyToken(t.image);
+ {
+ if (true) return eTok;
+ }
+ throw new Error("Missing return statement in function");
+ }
+
+ final public ExpressionToken ArrayIndex() throws ParseException {
+ Token t = null;
+ ExpressionToken eTok = null;
+ jj_consume_token(LBRACKET);
+ t = jj_consume_token(INTEGER);
+ jj_consume_token(RBRACKET);
+//System.out.println("** Parser found array index: " + t.image);
+ eTok = new ArrayIndexToken(t.image);
+ {
+ if (true) return eTok;
+ }
+ throw new Error("Missing return statement in function");
+ }
+
+ final private boolean jj_2_1(int xla) {
+ jj_la = xla;
+ jj_lastpos = jj_scanpos = token;
+ boolean retval = !jj_3_1();
+ jj_save(0, xla);
+ return retval;
+ }
+
+ final private boolean jj_3_1() {
+ if (jj_3R_3()) return true;
+ if (jj_la == 0 && jj_scanpos == jj_lastpos) return false;
+ return false;
+ }
+
+ final private boolean jj_3R_3() {
+ if (jj_scan_token(LBRACKET)) return true;
+ if (jj_la == 0 && jj_scanpos == jj_lastpos) return false;
+ if (jj_scan_token(STRING_LITERAL)) return true;
+ if (jj_la == 0 && jj_scanpos == jj_lastpos) return false;
+ return false;
+ }
+
+ public NetUIELParserTokenManager token_source;
+ SimpleCharStream jj_input_stream;
+ public Token token, jj_nt;
+ private int jj_ntk;
+ private Token jj_scanpos, jj_lastpos;
+ private int jj_la;
+ public boolean lookingAhead = false;
+ private boolean jj_semLA;
+ private int jj_gen;
+ final private int[] jj_la1 = new int[5];
+ static private int[] jj_la1_0;
+
+ static {
+ jj_la1_0();
+ }
+
+ private static void jj_la1_0() {
+ jj_la1_0 = new int[]{0xe, 0xe, 0x12000, 0x2000, 0x10000, };
+ }
+
+ final private JJCalls[] jj_2_rtns = new JJCalls[1];
+ private boolean jj_rescan = false;
+ private int jj_gc = 0;
+
+ public NetUIELParser(java.io.InputStream stream) {
+ jj_input_stream = new SimpleCharStream(stream, 1, 1);
+ token_source = new NetUIELParserTokenManager(jj_input_stream);
+ token = new Token();
+ jj_ntk = -1;
+ jj_gen = 0;
+ for (int i = 0; i < 5; i++) jj_la1[i] = -1;
+ for (int i = 0; i < jj_2_rtns.length; i++) jj_2_rtns[i] = new JJCalls();
+ }
+
+ public void ReInit(java.io.InputStream stream) {
+ jj_input_stream.ReInit(stream, 1, 1);
+ token_source.ReInit(jj_input_stream);
+ token = new Token();
+ jj_ntk = -1;
+ jj_gen = 0;
+ for (int i = 0; i < 5; i++) jj_la1[i] = -1;
+ for (int i = 0; i < jj_2_rtns.length; i++) jj_2_rtns[i] = new JJCalls();
+ }
+
+ public NetUIELParser(java.io.Reader stream) {
+ jj_input_stream = new SimpleCharStream(stream, 1, 1);
+ token_source = new NetUIELParserTokenManager(jj_input_stream);
+ token = new Token();
+ jj_ntk = -1;
+ jj_gen = 0;
+ for (int i = 0; i < 5; i++) jj_la1[i] = -1;
+ for (int i = 0; i < jj_2_rtns.length; i++) jj_2_rtns[i] = new JJCalls();
+ }
+
+ public void ReInit(java.io.Reader stream) {
+ jj_input_stream.ReInit(stream, 1, 1);
+ token_source.ReInit(jj_input_stream);
+ token = new Token();
+ jj_ntk = -1;
+ jj_gen = 0;
+ for (int i = 0; i < 5; i++) jj_la1[i] = -1;
+ for (int i = 0; i < jj_2_rtns.length; i++) jj_2_rtns[i] = new JJCalls();
+ }
+
+ public NetUIELParser(NetUIELParserTokenManager tm) {
+ token_source = tm;
+ token = new Token();
+ jj_ntk = -1;
+ jj_gen = 0;
+ for (int i = 0; i < 5; i++) jj_la1[i] = -1;
+ for (int i = 0; i < jj_2_rtns.length; i++) jj_2_rtns[i] = new JJCalls();
+ }
+
+ public void ReInit(NetUIELParserTokenManager tm) {
+ token_source = tm;
+ token = new Token();
+ jj_ntk = -1;
+ jj_gen = 0;
+ for (int i = 0; i < 5; i++) jj_la1[i] = -1;
+ for (int i = 0; i < jj_2_rtns.length; i++) jj_2_rtns[i] = new JJCalls();
+ }
+
+ final private Token jj_consume_token(int kind) throws ParseException {
+ Token oldToken;
+ if ((oldToken = token).next != null)
+ token = token.next;
+ else
+ token = token.next = token_source.getNextToken();
+ jj_ntk = -1;
+ if (token.kind == kind) {
+ jj_gen++;
+ if (++jj_gc > 100) {
+ jj_gc = 0;
+ for (int i = 0; i < jj_2_rtns.length; i++) {
+ JJCalls c = jj_2_rtns[i];
+ while (c != null) {
+ if (c.gen < jj_gen) c.first = null;
+ c = c.next;
+ }
+ }
+ }
+ return token;
+ }
+ token = oldToken;
+ jj_kind = kind;
+ throw generateParseException();
+ }
+
+ final private boolean jj_scan_token(int kind) {
+ if (jj_scanpos == jj_lastpos) {
+ jj_la--;
+ if (jj_scanpos.next == null) {
+ jj_lastpos = jj_scanpos = jj_scanpos.next = token_source.getNextToken();
+ } else {
+ jj_lastpos = jj_scanpos = jj_scanpos.next;
+ }
+ } else {
+ jj_scanpos = jj_scanpos.next;
+ }
+ if (jj_rescan) {
+ int i = 0;
+ Token tok = token;
+ while (tok != null && tok != jj_scanpos) {
+ i++;
+ tok = tok.next;
+ }
+ if (tok != null) jj_add_error_token(kind, i);
+ }
+ return (jj_scanpos.kind != kind);
+ }
+
+ final public Token getNextToken() {
+ if (token.next != null)
+ token = token.next;
+ else
+ token = token.next = token_source.getNextToken();
+ jj_ntk = -1;
+ jj_gen++;
+ return token;
+ }
+
+ final public Token getToken(int index) {
+ Token t = lookingAhead ? jj_scanpos : token;
+ for (int i = 0; i < index; i++) {
+ if (t.next != null)
+ t = t.next;
+ else
+ t = t.next = token_source.getNextToken();
+ }
+ return t;
+ }
+
+ final private int jj_ntk() {
+ if ((jj_nt = token.next) == null)
+ return (jj_ntk = (token.next = token_source.getNextToken()).kind);
+ else
+ return (jj_ntk = jj_nt.kind);
+ }
+
+ private java.util.Vector jj_expentries = new java.util.Vector();
+ private int[] jj_expentry;
+ private int jj_kind = -1;
+ private int[] jj_lasttokens = new int[100];
+ private int jj_endpos;
+
+ private void jj_add_error_token(int kind, int pos) {
+ if (pos >= 100) return;
+ if (pos == jj_endpos + 1) {
+ jj_lasttokens[jj_endpos++] = kind;
+ } else if (jj_endpos != 0) {
+ jj_expentry = new int[jj_endpos];
+ for (int i = 0; i < jj_endpos; i++) {
+ jj_expentry[i] = jj_lasttokens[i];
+ }
+ boolean exists = false;
+ for (java.util.Enumeration e = jj_expentries.elements(); e.hasMoreElements();) {
+ int[] oldentry = (int[]) (e.nextElement());
+ if (oldentry.length == jj_expentry.length) {
+ exists = true;
+ for (int i = 0; i < jj_expentry.length; i++) {
+ if (oldentry[i] != jj_expentry[i]) {
+ exists = false;
+ break;
+ }
+ }
+ if (exists) break;
+ }
+ }
+ if (!exists) jj_expentries.addElement(jj_expentry);
+ if (pos != 0) jj_lasttokens[(jj_endpos = pos) - 1] = kind;
+ }
+ }
+
+ public ParseException generateParseException() {
+ jj_expentries.removeAllElements();
+ boolean[] la1tokens = new boolean[18];
+ for (int i = 0; i < 18; i++) {
+ la1tokens[i] = false;
+ }
+ if (jj_kind >= 0) {
+ la1tokens[jj_kind] = true;
+ jj_kind = -1;
+ }
+ for (int i = 0; i < 5; i++) {
+ if (jj_la1[i] == jj_gen) {
+ for (int j = 0; j < 32; j++) {
+ if ((jj_la1_0[i] & (1 << j)) != 0) {
+ la1tokens[j] = true;
+ }
+ }
+ }
+ }
+ for (int i = 0; i < 18; i++) {
+ if (la1tokens[i]) {
+ jj_expentry = new int[1];
+ jj_expentry[0] = i;
+ jj_expentries.addElement(jj_expentry);
+ }
+ }
+ jj_endpos = 0;
+ jj_rescan_token();
+ jj_add_error_token(0, 0);
+ int[][] exptokseq = new int[jj_expentries.size()][];
+ for (int i = 0; i < jj_expentries.size(); i++) {
+ exptokseq[i] = (int[]) jj_expentries.elementAt(i);
+ }
+ return new ParseException(token, exptokseq, tokenImage);
+ }
+
+ final public void enable_tracing() {
+ }
+
+ final public void disable_tracing() {
+ }
+
+ final private void jj_rescan_token() {
+ jj_rescan = true;
+ for (int i = 0; i < 1; i++) {
+ JJCalls p = jj_2_rtns[i];
+ do {
+ if (p.gen > jj_gen) {
+ jj_la = p.arg;
+ jj_lastpos = jj_scanpos = p.first;
+ switch (i) {
+ case 0:
+ jj_3_1();
+ break;
+ }
+ }
+ p = p.next;
+ } while (p != null);
+ }
+ jj_rescan = false;
+ }
+
+ final private void jj_save(int index, int xla) {
+ JJCalls p = jj_2_rtns[index];
+ while (p.gen > jj_gen) {
+ if (p.next == null) {
+ p = p.next = new JJCalls();
+ break;
+ }
+ p = p.next;
+ }
+ p.gen = jj_gen + xla - jj_la;
+ p.first = token;
+ p.arg = xla;
+ }
+
+ static final class JJCalls {
+
+ int gen;
+ Token first;
+ int arg;
+ JJCalls next;
+ }
+
+}
Added: struts/sandbox/trunk/ti/core/src/java/org/apache/ti/script/el/parser/NetUIELParserConstants.java
URL: http://svn.apache.org/viewcvs/struts/sandbox/trunk/ti/core/src/java/org/apache/ti/script/el/parser/NetUIELParserConstants.java?rev=240168&view=auto
==============================================================================
--- struts/sandbox/trunk/ti/core/src/java/org/apache/ti/script/el/parser/NetUIELParserConstants.java (added)
+++ struts/sandbox/trunk/ti/core/src/java/org/apache/ti/script/el/parser/NetUIELParserConstants.java Thu Aug 25 22:46:03 2005
@@ -0,0 +1,65 @@
+/*
+ * Copyright 2004 The Apache Software Foundation.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ * $Header:$
+ */
+package org.apache.ti.script.el.parser;
+
+public interface NetUIELParserConstants {
+
+ int EOF = 0;
+ int NON_EXPRESSION_TEXT = 1;
+ int START_EXPRESSION = 2;
+ int ESCAPED_START_EXPRESSION = 3;
+ int END_EXPRESSION = 4;
+ int STRING_LITERAL = 5;
+ int ECMA_ESCAPE_SEQUENCE = 6;
+ int HIT = 7;
+ int IDENTIFIER = 8;
+ int IMPL_OBJ_START = 9;
+ int LETTER = 10;
+ int DIGIT = 11;
+ int INTEGER = 12;
+ int DOT = 13;
+ int DQUOTE = 14;
+ int SQUOTE = 15;
+ int LBRACKET = 16;
+ int RBRACKET = 17;
+
+ int DEFAULT = 0;
+ int IN_EXPRESSION = 1;
+
+ String[] tokenImage = {
+ "<EOF>",
+ "<NON_EXPRESSION_TEXT>",
+ "\"{\"",
+ "\"\\\\\\\\{\"",
+ "\"}\"",
+ "<STRING_LITERAL>",
+ "<ECMA_ESCAPE_SEQUENCE>",
+ "<HIT>",
+ "<IDENTIFIER>",
+ "\"#\"",
+ "<LETTER>",
+ "<DIGIT>",
+ "<INTEGER>",
+ "\".\"",
+ "\"\\\"\"",
+ "\"\\\'\"",
+ "\"[\"",
+ "\"]\"",
+ };
+
+}
Added: struts/sandbox/trunk/ti/core/src/java/org/apache/ti/script/el/parser/NetUIELParserTokenManager.java
URL: http://svn.apache.org/viewcvs/struts/sandbox/trunk/ti/core/src/java/org/apache/ti/script/el/parser/NetUIELParserTokenManager.java?rev=240168&view=auto
==============================================================================
--- struts/sandbox/trunk/ti/core/src/java/org/apache/ti/script/el/parser/NetUIELParserTokenManager.java (added)
+++ struts/sandbox/trunk/ti/core/src/java/org/apache/ti/script/el/parser/NetUIELParserTokenManager.java Thu Aug 25 22:46:03 2005
@@ -0,0 +1,782 @@
+/*
+ * Copyright 2004 The Apache Software Foundation.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ * $Header:$
+ */
+package org.apache.ti.script.el.parser;
+
+
+
+public class NetUIELParserTokenManager
+ implements NetUIELParserConstants {
+
+ public java.io.PrintStream debugStream = System.out;
+
+ public void setDebugStream(java.io.PrintStream ds) {
+ debugStream = ds;
+ }
+
+ private final int jjStopStringLiteralDfa_0(int pos, long active0) {
+ switch (pos) {
+ case 0:
+ if ((active0 & 0x8L) != 0L) {
+ jjmatchedKind = 1;
+ return 1;
+ }
+ return -1;
+ case 1:
+ if ((active0 & 0x8L) != 0L) {
+ if (jjmatchedPos == 0) {
+ jjmatchedKind = 1;
+ jjmatchedPos = 0;
+ }
+ return -1;
+ }
+ return -1;
+ default :
+ return -1;
+ }
+ }
+
+ private final int jjStartNfa_0(int pos, long active0) {
+ return jjMoveNfa_0(jjStopStringLiteralDfa_0(pos, active0), pos + 1);
+ }
+
+ private final int jjStopAtPos(int pos, int kind) {
+ jjmatchedKind = kind;
+ jjmatchedPos = pos;
+ return pos + 1;
+ }
+
+ private final int jjStartNfaWithStates_0(int pos, int kind, int state) {
+ jjmatchedKind = kind;
+ jjmatchedPos = pos;
+ try {
+ curChar = input_stream.readChar();
+ } catch (java.io.IOException e) {
+ return pos + 1;
+ }
+ return jjMoveNfa_0(state, pos + 1);
+ }
+
+ private final int jjMoveStringLiteralDfa0_0() {
+ switch (curChar) {
+ case 92:
+ return jjMoveStringLiteralDfa1_0(0x8L);
+ case 123:
+ return jjStopAtPos(0, 2);
+ default :
+ return jjMoveNfa_0(2, 0);
+ }
+ }
+
+ private final int jjMoveStringLiteralDfa1_0(long active0) {
+ try {
+ curChar = input_stream.readChar();
+ } catch (java.io.IOException e) {
+ jjStopStringLiteralDfa_0(0, active0);
+ return 1;
+ }
+ switch (curChar) {
+ case 92:
+ return jjMoveStringLiteralDfa2_0(active0, 0x8L);
+ default :
+ break;
+ }
+ return jjStartNfa_0(0, active0);
+ }
+
+ private final int jjMoveStringLiteralDfa2_0(long old0, long active0) {
+ if (((active0 &= old0)) == 0L)
+ return jjStartNfa_0(0, old0);
+ try {
+ curChar = input_stream.readChar();
+ } catch (java.io.IOException e) {
+ jjStopStringLiteralDfa_0(1, active0);
+ return 2;
+ }
+ switch (curChar) {
+ case 123:
+ if ((active0 & 0x8L) != 0L)
+ return jjStopAtPos(2, 3);
+ break;
+ default :
+ break;
+ }
+ return jjStartNfa_0(1, active0);
+ }
+
+ private final void jjCheckNAdd(int state) {
+ if (jjrounds[state] != jjround) {
+ jjstateSet[jjnewStateCnt++] = state;
+ jjrounds[state] = jjround;
+ }
+ }
+
+ private final void jjAddStates(int start, int end) {
+ do {
+ jjstateSet[jjnewStateCnt++] = jjnextStates[start];
+ } while (start++ != end);
+ }
+
+ private final void jjCheckNAddTwoStates(int state1, int state2) {
+ jjCheckNAdd(state1);
+ jjCheckNAdd(state2);
+ }
+
+ private final void jjCheckNAddStates(int start, int end) {
+ do {
+ jjCheckNAdd(jjnextStates[start]);
+ } while (start++ != end);
+ }
+
+ private final void jjCheckNAddStates(int start) {
+ jjCheckNAdd(jjnextStates[start]);
+ jjCheckNAdd(jjnextStates[start + 1]);
+ }
+
+ static final long[] jjbitVec0 = {
+ 0xfffffffffffffffeL, 0xffffffffffffffffL, 0xffffffffffffffffL, 0xffffffffffffffffL
+ };
+ static final long[] jjbitVec2 = {
+ 0x0L, 0x0L, 0xffffffffffffffffL, 0xffffffffffffffffL
+ };
+
+ private final int jjMoveNfa_0(int startState, int curPos) {
+ int[] nextStates;
+ int startsAt = 0;
+ jjnewStateCnt = 4;
+ int i = 1;
+ jjstateSet[0] = startState;
+ int j, kind = 0x7fffffff;
+ for (; ;) {
+ if (++jjround == 0x7fffffff)
+ ReInitRounds();
+ if (curChar < 64) {
+ long l = 1L << curChar;
+ MatchLoop: do {
+ switch (jjstateSet[--i]) {
+ case 2:
+ case 0:
+ kind = 1;
+ jjCheckNAdd(0);
+ break;
+ default :
+ break;
+ }
+ } while (i != startsAt);
+ } else if (curChar < 128) {
+ long l = 1L << (curChar & 077);
+ MatchLoop: do {
+ switch (jjstateSet[--i]) {
+ case 2:
+ if ((0xf7ffffffefffffffL & l) != 0L) {
+ if (kind > 1)
+ kind = 1;
+ jjCheckNAdd(0);
+ } else if (curChar == 92) {
+ if (kind > 1)
+ kind = 1;
+ }
+ if (curChar == 92)
+ jjstateSet[jjnewStateCnt++] = 1;
+ break;
+ case 0:
+ if ((0xf7ffffffefffffffL & l) == 0L)
+ break;
+ kind = 1;
+ jjCheckNAdd(0);
+ break;
+ case 1:
+ if (curChar == 123)
+ kind = 1;
+ break;
+ case 3:
+ if (curChar == 92 && kind > 1)
+ kind = 1;
+ break;
+ default :
+ break;
+ }
+ } while (i != startsAt);
+ } else {
+ int hiByte = (int) (curChar >> 8);
+ int i1 = hiByte >> 6;
+ long l1 = 1L << (hiByte & 077);
+ int i2 = (curChar & 0xff) >> 6;
+ long l2 = 1L << (curChar & 077);
+ MatchLoop: do {
+ switch (jjstateSet[--i]) {
+ case 2:
+ case 0:
+ if (!jjCanMove_0(hiByte, i1, i2, l1, l2))
+ break;
+ if (kind > 1)
+ kind = 1;
+ jjCheckNAdd(0);
+ break;
+ default :
+ break;
+ }
+ } while (i != startsAt);
+ }
+ if (kind != 0x7fffffff) {
+ jjmatchedKind = kind;
+ jjmatchedPos = curPos;
+ kind = 0x7fffffff;
+ }
+ ++curPos;
+ if ((i = jjnewStateCnt) == (startsAt = 4 - (jjnewStateCnt = startsAt)))
+ return curPos;
+ try {
+ curChar = input_stream.readChar();
+ } catch (java.io.IOException e) {
+ return curPos;
+ }
+ }
+ }
+
+ private final int jjStopStringLiteralDfa_1(int pos, long active0) {
+ switch (pos) {
+ default :
+ return -1;
+ }
+ }
+
+ private final int jjStartNfa_1(int pos, long active0) {
+ return jjMoveNfa_1(jjStopStringLiteralDfa_1(pos, active0), pos + 1);
+ }
+
+ private final int jjStartNfaWithStates_1(int pos, int kind, int state) {
+ jjmatchedKind = kind;
+ jjmatchedPos = pos;
+ try {
+ curChar = input_stream.readChar();
+ } catch (java.io.IOException e) {
+ return pos + 1;
+ }
+ return jjMoveNfa_1(state, pos + 1);
+ }
+
+ private final int jjMoveStringLiteralDfa0_1() {
+ switch (curChar) {
+ case 34:
+ return jjStartNfaWithStates_1(0, 14, 33);
+ case 39:
+ return jjStartNfaWithStates_1(0, 15, 34);
+ case 46:
+ return jjStopAtPos(0, 13);
+ case 91:
+ return jjStopAtPos(0, 16);
+ case 93:
+ return jjStopAtPos(0, 17);
+ case 125:
+ return jjStopAtPos(0, 4);
+ default :
+ return jjMoveNfa_1(0, 0);
+ }
+ }
+
+ static final long[] jjbitVec3 = {
+ 0x1ff00000fffffffeL, 0xffffffffffffc000L, 0xffffffffL, 0x600000000000000L
+ };
+ static final long[] jjbitVec4 = {
+ 0x0L, 0x0L, 0x0L, 0xff7fffffff7fffffL
+ };
+ static final long[] jjbitVec5 = {
+ 0x0L, 0xffffffffffffffffL, 0xffffffffffffffffL, 0xffffffffffffffffL
+ };
+ static final long[] jjbitVec6 = {
+ 0xffffffffffffffffL, 0xffffffffffffffffL, 0xffffL, 0x0L
+ };
+ static final long[] jjbitVec7 = {
+ 0xffffffffffffffffL, 0xffffffffffffffffL, 0x0L, 0x0L
+ };
+ static final long[] jjbitVec8 = {
+ 0x3fffffffffffL, 0x0L, 0x0L, 0x0L
+ };
+
+ private final int jjMoveNfa_1(int startState, int curPos) {
+ int[] nextStates;
+ int startsAt = 0;
+ jjnewStateCnt = 33;
+ int i = 1;
+ jjstateSet[0] = startState;
+ int j, kind = 0x7fffffff;
+ for (; ;) {
+ if (++jjround == 0x7fffffff)
+ ReInitRounds();
+ if (curChar < 64) {
+ long l = 1L << curChar;
+ MatchLoop: do {
+ switch (jjstateSet[--i]) {
+ case 33:
+ if ((0xffffffffffffdbffL & l) != 0L)
+ jjCheckNAddStates(0, 5);
+ if ((0xff000000000000L & l) != 0L)
+ jjCheckNAddStates(6, 11);
+ else if (curChar == 34) {
+ if (kind > 5)
+ kind = 5;
+ }
+ if ((0xf000000000000L & l) != 0L)
+ jjstateSet[jjnewStateCnt++] = 10;
+ break;
+ case 34:
+ if ((0xffffffffffffdbffL & l) != 0L)
+ jjCheckNAddStates(12, 17);
+ if ((0xff000000000000L & l) != 0L)
+ jjCheckNAddStates(18, 23);
+ else if (curChar == 39) {
+ if (kind > 5)
+ kind = 5;
+ }
+ if ((0xf000000000000L & l) != 0L)
+ jjstateSet[jjnewStateCnt++] = 25;
+ break;
+ case 0:
+ if ((0x3ff000000000000L & l) != 0L) {
+ if (kind > 12)
+ kind = 12;
+ jjCheckNAdd(32);
+ } else if ((0x1800000000L & l) != 0L) {
+ if (kind > 8)
+ kind = 8;
+ jjCheckNAdd(31);
+ } else if (curChar == 39)
+ jjCheckNAddStates(12, 17);
+ else if (curChar == 34)
+ jjCheckNAddStates(0, 5);
+ break;
+ case 1:
+ if ((0xffffffffffffdbffL & l) != 0L)
+ jjCheckNAddStates(0, 5);
+ break;
+ case 3:
+ if ((0x3ff000000000000L & l) != 0L)
+ jjstateSet[jjnewStateCnt++] = 4;
+ break;
+ case 4:
+ if ((0x3ff000000000000L & l) != 0L)
+ jjstateSet[jjnewStateCnt++] = 5;
+ break;
+ case 5:
+ case 8:
+ if ((0x3ff000000000000L & l) != 0L)
+ jjCheckNAdd(6);
+ break;
+ case 6:
+ if ((0x3ff000000000000L & l) != 0L)
+ jjCheckNAddStates(0, 5);
+ break;
+ case 9:
+ if ((0xf000000000000L & l) != 0L)
+ jjstateSet[jjnewStateCnt++] = 10;
+ break;
+ case 10:
+ if ((0xff000000000000L & l) != 0L)
+ jjstateSet[jjnewStateCnt++] = 11;
+ break;
+ case 11:
+ if ((0xff000000000000L & l) != 0L)
+ jjCheckNAddStates(0, 5);
+ break;
+ case 12:
+ if ((0xff000000000000L & l) != 0L)
+ jjCheckNAddStates(6, 11);
+ break;
+ case 13:
+ if (curChar == 34 && kind > 5)
+ kind = 5;
+ break;
+ case 14:
+ if ((0xff000000000000L & l) != 0L)
+ jjCheckNAddStates(24, 30);
+ break;
+ case 15:
+ if (curChar == 39)
+ jjCheckNAddStates(12, 17);
+ break;
+ case 16:
+ if ((0xffffffffffffdbffL & l) != 0L)
+ jjCheckNAddStates(12, 17);
+ break;
+ case 18:
+ if ((0x3ff000000000000L & l) != 0L)
+ jjstateSet[jjnewStateCnt++] = 19;
+ break;
+ case 19:
+ if ((0x3ff000000000000L & l) != 0L)
+ jjstateSet[jjnewStateCnt++] = 20;
+ break;
+ case 20:
+ case 23:
+ if ((0x3ff000000000000L & l) != 0L)
+ jjCheckNAdd(21);
+ break;
+ case 21:
+ if ((0x3ff000000000000L & l) != 0L)
+ jjCheckNAddStates(12, 17);
+ break;
+ case 24:
+ if ((0xf000000000000L & l) != 0L)
+ jjstateSet[jjnewStateCnt++] = 25;
+ break;
+ case 25:
+ if ((0xff000000000000L & l) != 0L)
+ jjstateSet[jjnewStateCnt++] = 26;
+ break;
+ case 26:
+ if ((0xff000000000000L & l) != 0L)
+ jjCheckNAddStates(12, 17);
+ break;
+ case 27:
+ if ((0xff000000000000L & l) != 0L)
+ jjCheckNAddStates(18, 23);
+ break;
+ case 28:
+ if (curChar == 39 && kind > 5)
+ kind = 5;
+ break;
+ case 29:
+ if ((0xff000000000000L & l) != 0L)
+ jjCheckNAddStates(31, 37);
+ break;
+ case 30:
+ if ((0x1800000000L & l) == 0L)
+ break;
+ if (kind > 8)
+ kind = 8;
+ jjCheckNAdd(31);
+ break;
+ case 31:
+ if ((0x3ff001000000000L & l) == 0L)
+ break;
+ if (kind > 8)
+ kind = 8;
+ jjCheckNAdd(31);
+ break;
+ case 32:
+ if ((0x3ff000000000000L & l) == 0L)
+ break;
+ if (kind > 12)
+ kind = 12;
+ jjCheckNAdd(32);
+ break;
+ default :
+ break;
+ }
+ } while (i != startsAt);
+ } else if (curChar < 128) {
+ long l = 1L << (curChar & 077);
+ MatchLoop: do {
+ switch (jjstateSet[--i]) {
+ case 33:
+ jjCheckNAddStates(0, 5);
+ if ((0x100000001000000L & l) != 0L)
+ jjstateSet[jjnewStateCnt++] = 8;
+ else if ((0x20000000200000L & l) != 0L)
+ jjstateSet[jjnewStateCnt++] = 3;
+ break;
+ case 34:
+ jjCheckNAddStates(12, 17);
+ if ((0x100000001000000L & l) != 0L)
+ jjstateSet[jjnewStateCnt++] = 23;
+ else if ((0x20000000200000L & l) != 0L)
+ jjstateSet[jjnewStateCnt++] = 18;
+ break;
+ case 0:
+ case 31:
+ if ((0x7fffffe87fffffeL & l) == 0L)
+ break;
+ if (kind > 8)
+ kind = 8;
+ jjCheckNAdd(31);
+ break;
+ case 1:
+ jjCheckNAddStates(0, 5);
+ break;
+ case 2:
+ if ((0x20000000200000L & l) != 0L)
+ jjstateSet[jjnewStateCnt++] = 3;
+ break;
+ case 3:
+ if ((0x7e0000007eL & l) != 0L)
+ jjstateSet[jjnewStateCnt++] = 4;
+ break;
+ case 4:
+ if ((0x7e0000007eL & l) != 0L)
+ jjstateSet[jjnewStateCnt++] = 5;
+ break;
+ case 5:
+ case 8:
+ if ((0x7e0000007eL & l) != 0L)
+ jjCheckNAdd(6);
+ break;
+ case 6:
+ if ((0x7e0000007eL & l) != 0L)
+ jjCheckNAddStates(0, 5);
+ break;
+ case 7:
+ if ((0x100000001000000L & l) != 0L)
+ jjstateSet[jjnewStateCnt++] = 8;
+ break;
+ case 16:
+ jjCheckNAddStates(12, 17);
+ break;
+ case 17:
+ if ((0x20000000200000L & l) != 0L)
+ jjstateSet[jjnewStateCnt++] = 18;
+ break;
+ case 18:
+ if ((0x7e0000007eL & l) != 0L)
+ jjstateSet[jjnewStateCnt++] = 19;
+ break;
+ case 19:
+ if ((0x7e0000007eL & l) != 0L)
+ jjstateSet[jjnewStateCnt++] = 20;
+ break;
+ case 20:
+ case 23:
+ if ((0x7e0000007eL & l) != 0L)
+ jjCheckNAdd(21);
+ break;
+ case 21:
+ if ((0x7e0000007eL & l) != 0L)
+ jjCheckNAddStates(12, 17);
+ break;
+ case 22:
+ if ((0x100000001000000L & l) != 0L)
+ jjstateSet[jjnewStateCnt++] = 23;
+ break;
+ default :
+ break;
+ }
+ } while (i != startsAt);
+ } else {
+ int hiByte = (int) (curChar >> 8);
+ int i1 = hiByte >> 6;
+ long l1 = 1L << (hiByte & 077);
+ int i2 = (curChar & 0xff) >> 6;
+ long l2 = 1L << (curChar & 077);
+ MatchLoop: do {
+ switch (jjstateSet[--i]) {
+ case 33:
+ case 1:
+ if (jjCanMove_0(hiByte, i1, i2, l1, l2))
+ jjCheckNAddStates(0, 5);
+ break;
+ case 34:
+ case 16:
+ if (jjCanMove_0(hiByte, i1, i2, l1, l2))
+ jjCheckNAddStates(12, 17);
+ break;
+ case 0:
+ case 31:
+ if (!jjCanMove_1(hiByte, i1, i2, l1, l2))
+ break;
+ if (kind > 8)
+ kind = 8;
+ jjCheckNAdd(31);
+ break;
+ default :
+ break;
+ }
+ } while (i != startsAt);
+ }
+ if (kind != 0x7fffffff) {
+ jjmatchedKind = kind;
+ jjmatchedPos = curPos;
+ kind = 0x7fffffff;
+ }
+ ++curPos;
+ if ((i = jjnewStateCnt) == (startsAt = 33 - (jjnewStateCnt = startsAt)))
+ return curPos;
+ try {
+ curChar = input_stream.readChar();
+ } catch (java.io.IOException e) {
+ return curPos;
+ }
+ }
+ }
+
+ static final int[] jjnextStates = {
+ 1, 2, 7, 9, 12, 13, 1, 2, 7, 9, 13, 14, 16, 17, 22, 24,
+ 27, 28, 16, 17, 22, 24, 28, 29, 1, 2, 7, 9, 12, 13, 14, 16,
+ 17, 22, 24, 27, 28, 29,
+ };
+
+ private static final boolean jjCanMove_0(int hiByte, int i1, int i2, long l1, long l2) {
+ switch (hiByte) {
+ case 0:
+ return ((jjbitVec2[i2] & l2) != 0L);
+ default :
+ if ((jjbitVec0[i1] & l1) != 0L)
+ return true;
+ return false;
+ }
+ }
+
+ private static final boolean jjCanMove_1(int hiByte, int i1, int i2, long l1, long l2) {
+ switch (hiByte) {
+ case 0:
+ return ((jjbitVec4[i2] & l2) != 0L);
+ case 48:
+ return ((jjbitVec5[i2] & l2) != 0L);
+ case 49:
+ return ((jjbitVec6[i2] & l2) != 0L);
+ case 51:
+ return ((jjbitVec7[i2] & l2) != 0L);
+ case 61:
+ return ((jjbitVec8[i2] & l2) != 0L);
+ default :
+ if ((jjbitVec3[i1] & l1) != 0L)
+ return true;
+ return false;
+ }
+ }
+
+ public static final String[] jjstrLiteralImages = {
+ "", null, "\173", "\134\134\173", "\175", null, null, null, null, null, null,
+ null, null, "\56", "\42", "\47", "\133", "\135", };
+ public static final String[] lexStateNames = {
+ "DEFAULT",
+ "IN_EXPRESSION",
+ };
+ public static final int[] jjnewLexState = {
+ -1, -1, 1, 1, 0, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
+ };
+ protected SimpleCharStream input_stream;
+ private final int[] jjrounds = new int[33];
+ private final int[] jjstateSet = new int[66];
+ protected char curChar;
+
+ public NetUIELParserTokenManager(SimpleCharStream stream) {
+ if (SimpleCharStream.staticFlag)
+ throw new Error("ERROR: Cannot use a static CharStream class with a non-static lexical analyzer.");
+ input_stream = stream;
+ }
+
+ public NetUIELParserTokenManager(SimpleCharStream stream, int lexState) {
+ this(stream);
+ SwitchTo(lexState);
+ }
+
+ public void ReInit(SimpleCharStream stream) {
+ jjmatchedPos = jjnewStateCnt = 0;
+ curLexState = defaultLexState;
+ input_stream = stream;
+ ReInitRounds();
+ }
+
+ private final void ReInitRounds() {
+ int i;
+ jjround = 0x80000001;
+ for (i = 33; i-- > 0;)
+ jjrounds[i] = 0x80000000;
+ }
+
+ public void ReInit(SimpleCharStream stream, int lexState) {
+ ReInit(stream);
+ SwitchTo(lexState);
+ }
+
+ public void SwitchTo(int lexState) {
+ if (lexState >= 2 || lexState < 0)
+ throw new TokenMgrError("Error: Ignoring invalid lexical state : " + lexState + ". State unchanged.", TokenMgrError.INVALID_LEXICAL_STATE);
+ else
+ curLexState = lexState;
+ }
+
+ protected Token jjFillToken() {
+ Token t = Token.newToken(jjmatchedKind);
+ t.kind = jjmatchedKind;
+ String im = jjstrLiteralImages[jjmatchedKind];
+ t.image = (im == null) ? input_stream.GetImage() : im;
+ t.beginLine = input_stream.getBeginLine();
+ t.beginColumn = input_stream.getBeginColumn();
+ t.endLine = input_stream.getEndLine();
+ t.endColumn = input_stream.getEndColumn();
+ return t;
+ }
+
+ int curLexState = 0;
+ int defaultLexState = 0;
+ int jjnewStateCnt;
+ int jjround;
+ int jjmatchedPos;
+ int jjmatchedKind;
+
+ public Token getNextToken() {
+ int kind;
+ Token specialToken = null;
+ Token matchedToken;
+ int curPos = 0;
+
+ EOFLoop :
+ for (; ;) {
+ try {
+ curChar = input_stream.BeginToken();
+ } catch (java.io.IOException e) {
+ jjmatchedKind = 0;
+ matchedToken = jjFillToken();
+ return matchedToken;
+ }
+
+ switch (curLexState) {
+ case 0:
+ jjmatchedKind = 0x7fffffff;
+ jjmatchedPos = 0;
+ curPos = jjMoveStringLiteralDfa0_0();
+ break;
+ case 1:
+ jjmatchedKind = 0x7fffffff;
+ jjmatchedPos = 0;
+ curPos = jjMoveStringLiteralDfa0_1();
+ break;
+ }
+ if (jjmatchedKind != 0x7fffffff) {
+ if (jjmatchedPos + 1 < curPos)
+ input_stream.backup(curPos - jjmatchedPos - 1);
+ matchedToken = jjFillToken();
+ if (jjnewLexState[jjmatchedKind] != -1)
+ curLexState = jjnewLexState[jjmatchedKind];
+ return matchedToken;
+ }
+ int error_line = input_stream.getEndLine();
+ int error_column = input_stream.getEndColumn();
+ String error_after = null;
+ boolean EOFSeen = false;
+ try {
+ input_stream.readChar();
+ input_stream.backup(1);
+ } catch (java.io.IOException e1) {
+ EOFSeen = true;
+ error_after = curPos <= 1 ? "" : input_stream.GetImage();
+ if (curChar == '\n' || curChar == '\r') {
+ error_line++;
+ error_column = 0;
+ } else
+ error_column++;
+ }
+ if (!EOFSeen) {
+ input_stream.backup(1);
+ error_after = curPos <= 1 ? "" : input_stream.GetImage();
+ }
+ throw new TokenMgrError(EOFSeen, curLexState, error_line, error_column, error_after, curChar, TokenMgrError.LEXICAL_ERROR);
+ }
+ }
+
+}
Added: struts/sandbox/trunk/ti/core/src/java/org/apache/ti/script/el/parser/ParseException.java
URL: http://svn.apache.org/viewcvs/struts/sandbox/trunk/ti/core/src/java/org/apache/ti/script/el/parser/ParseException.java?rev=240168&view=auto
==============================================================================
--- struts/sandbox/trunk/ti/core/src/java/org/apache/ti/script/el/parser/ParseException.java (added)
+++ struts/sandbox/trunk/ti/core/src/java/org/apache/ti/script/el/parser/ParseException.java Thu Aug 25 22:46:03 2005
@@ -0,0 +1,208 @@
+/*
+ * Copyright 2004 The Apache Software Foundation.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ * $Header:$
+ */
+package org.apache.ti.script.el.parser;
+
+import org.apache.ti.util.internal.InternalStringBuilder;
+
+/**
+ * This exception is thrown when parse errors are encountered.
+ * You can explicitly create objects of this exception type by
+ * calling the method generateParseException in the generated
+ * parser.
+ * <p/>
+ * You can modify this class to customize your error reporting
+ * mechanisms so long as you retain the public fields.
+ */
+public class ParseException
+ extends Exception {
+
+ /**
+ * This constructor is used by the method "generateParseException"
+ * in the generated parser. Calling this constructor generates
+ * a new object of this type with the fields "currentToken",
+ * "expectedTokenSequences", and "tokenImage" set. The boolean
+ * flag "specialConstructor" is also set to true to indicate that
+ * this constructor was used to create this object.
+ * This constructor calls its super class with the empty string
+ * to force the "toString" method of parent class "Throwable" to
+ * print the error message in the form:
+ * ParseException: <result of getMessage>
+ */
+ public ParseException(Token currentTokenVal,
+ int[][] expectedTokenSequencesVal,
+ String[] tokenImageVal) {
+ super("");
+ specialConstructor = true;
+ currentToken = currentTokenVal;
+ expectedTokenSequences = expectedTokenSequencesVal;
+ tokenImage = tokenImageVal;
+ }
+
+ /**
+ * The following constructors are for use by you for whatever
+ * purpose you can think of. Constructing the exception in this
+ * manner makes the exception behave in the normal way - i.e., as
+ * documented in the class "Throwable". The fields "errorToken",
+ * "expectedTokenSequences", and "tokenImage" do not contain
+ * relevant information. The JavaCC generated code does not use
+ * these constructors.
+ */
+
+ public ParseException() {
+ super();
+ specialConstructor = false;
+ }
+
+ public ParseException(String message) {
+ super(message);
+ specialConstructor = false;
+ }
+
+ /**
+ * This variable determines which constructor was used to create
+ * this object and thereby affects the semantics of the
+ * "getMessage" method (see below).
+ */
+ protected boolean specialConstructor;
+
+ /**
+ * This is the last token that has been consumed successfully. If
+ * this object has been created due to a parse error, the token
+ * followng this token will (therefore) be the first error token.
+ */
+ public Token currentToken;
+
+ /**
+ * Each entry in this array is an array of integers. Each array
+ * of integers represents a sequence of tokens (by their ordinal
+ * values) that is expected at this point of the parse.
+ */
+ public int[][] expectedTokenSequences;
+
+ /**
+ * This is a reference to the "tokenImage" array of the generated
+ * parser within which the parse error occurred. This array is
+ * defined in the generated ...Constants interface.
+ */
+ public String[] tokenImage;
+
+ /**
+ * This method has the standard behavior when this object has been
+ * created using the standard constructors. Otherwise, it uses
+ * "currentToken" and "expectedTokenSequences" to generate a parse
+ * error message and returns it. If this object has been created
+ * due to a parse error, and you do not catch it (it gets thrown
+ * from the parser), then this method is called during the printing
+ * of the final stack trace, and hence the correct error message
+ * gets displayed.
+ */
+ public String getMessage() {
+ if (!specialConstructor) {
+ return super.getMessage();
+ }
+ String expected = "";
+ int maxSize = 0;
+ for (int i = 0; i < expectedTokenSequences.length; i++) {
+ if (maxSize < expectedTokenSequences[i].length) {
+ maxSize = expectedTokenSequences[i].length;
+ }
+ for (int j = 0; j < expectedTokenSequences[i].length; j++) {
+ expected += tokenImage[expectedTokenSequences[i][j]] + " ";
+ }
+ if (expectedTokenSequences[i][expectedTokenSequences[i].length - 1] != 0) {
+ expected += "...";
+ }
+ expected += eol + " ";
+ }
+ String retval = "Encountered \"";
+ Token tok = currentToken.next;
+ for (int i = 0; i < maxSize; i++) {
+ if (i != 0) retval += " ";
+ if (tok.kind == 0) {
+ retval += tokenImage[0];
+ break;
+ }
+ retval += add_escapes(tok.image);
+ tok = tok.next;
+ }
+ retval += "\" at line " + currentToken.next.beginLine + ", column " + currentToken.next.beginColumn;
+ retval += "." + eol;
+ if (expectedTokenSequences.length == 1) {
+ retval += "Was expecting:" + eol + " ";
+ } else {
+ retval += "Was expecting one of:" + eol + " ";
+ }
+ retval += expected;
+ return retval;
+ }
+
+ /**
+ * The end of line string for this machine.
+ */
+ protected String eol = System.getProperty("line.separator", "\n");
+
+ /**
+ * Used to convert raw characters to their escaped version
+ * when these raw version cannot be used as part of an ASCII
+ * string literal.
+ */
+ protected String add_escapes(String str) {
+ InternalStringBuilder retval = new InternalStringBuilder();
+ char ch;
+ for (int i = 0; i < str.length(); i++) {
+ switch (str.charAt(i)) {
+ case 0:
+ continue;
+ case '\b':
+ retval.append("\\b");
+ continue;
+ case '\t':
+ retval.append("\\t");
+ continue;
+ case '\n':
+ retval.append("\\n");
+ continue;
+ case '\f':
+ retval.append("\\f");
+ continue;
+ case '\r':
+ retval.append("\\r");
+ continue;
+ case '\"':
+ retval.append("\\\"");
+ continue;
+ case '\'':
+ retval.append("\\\'");
+ continue;
+ case '\\':
+ retval.append("\\\\");
+ continue;
+ default:
+ if ((ch = str.charAt(i)) < 0x20 || ch > 0x7e) {
+ String s = "0000" + Integer.toString(ch, 16);
+ retval.append("\\u" + s.substring(s.length() - 4, s.length()));
+ } else {
+ retval.append(ch);
+ }
+ continue;
+ }
+ }
+ return retval.toString();
+ }
+
+}
Added: struts/sandbox/trunk/ti/core/src/java/org/apache/ti/script/el/parser/SimpleCharStream.java
URL: http://svn.apache.org/viewcvs/struts/sandbox/trunk/ti/core/src/java/org/apache/ti/script/el/parser/SimpleCharStream.java?rev=240168&view=auto
==============================================================================
--- struts/sandbox/trunk/ti/core/src/java/org/apache/ti/script/el/parser/SimpleCharStream.java (added)
+++ struts/sandbox/trunk/ti/core/src/java/org/apache/ti/script/el/parser/SimpleCharStream.java Thu Aug 25 22:46:03 2005
@@ -0,0 +1,371 @@
+/*
+ * Copyright 2004 The Apache Software Foundation.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ * $Header:$
+ */
+package org.apache.ti.script.el.parser;
+
+/**
+ * An implementation of interface CharStream, where the stream is assumed to
+ * contain only ASCII characters (without unicode processing).
+ */
+
+public class SimpleCharStream {
+
+ public static final boolean staticFlag = false;
+ int bufsize;
+ int available;
+ int tokenBegin;
+ public int bufpos = -1;
+ protected int bufline[];
+ protected int bufcolumn[];
+
+ protected int column = 0;
+ protected int line = 1;
+
+ protected boolean prevCharIsCR = false;
+ protected boolean prevCharIsLF = false;
+
+ protected java.io.Reader inputStream;
+
+ protected char[] buffer;
+ protected int maxNextCharInd = 0;
+ protected int inBuf = 0;
+
+ protected void ExpandBuff(boolean wrapAround) {
+ char[] newbuffer = new char[bufsize + 2048];
+ int newbufline[] = new int[bufsize + 2048];
+ int newbufcolumn[] = new int[bufsize + 2048];
+
+ try {
+ if (wrapAround) {
+ System.arraycopy(buffer, tokenBegin, newbuffer, 0, bufsize - tokenBegin);
+ System.arraycopy(buffer, 0, newbuffer,
+ bufsize - tokenBegin, bufpos);
+ buffer = newbuffer;
+
+ System.arraycopy(bufline, tokenBegin, newbufline, 0, bufsize - tokenBegin);
+ System.arraycopy(bufline, 0, newbufline, bufsize - tokenBegin, bufpos);
+ bufline = newbufline;
+
+ System.arraycopy(bufcolumn, tokenBegin, newbufcolumn, 0, bufsize - tokenBegin);
+ System.arraycopy(bufcolumn, 0, newbufcolumn, bufsize - tokenBegin, bufpos);
+ bufcolumn = newbufcolumn;
+
+ maxNextCharInd = (bufpos += (bufsize - tokenBegin));
+ } else {
+ System.arraycopy(buffer, tokenBegin, newbuffer, 0, bufsize - tokenBegin);
+ buffer = newbuffer;
+
+ System.arraycopy(bufline, tokenBegin, newbufline, 0, bufsize - tokenBegin);
+ bufline = newbufline;
+
+ System.arraycopy(bufcolumn, tokenBegin, newbufcolumn, 0, bufsize - tokenBegin);
+ bufcolumn = newbufcolumn;
+
+ maxNextCharInd = (bufpos -= tokenBegin);
+ }
+ } catch (Throwable t) {
+ throw new Error(t.getMessage());
+ }
+
+
+ bufsize += 2048;
+ available = bufsize;
+ tokenBegin = 0;
+ }
+
+ protected void FillBuff() throws java.io.IOException {
+ if (maxNextCharInd == available) {
+ if (available == bufsize) {
+ if (tokenBegin > 2048) {
+ bufpos = maxNextCharInd = 0;
+ available = tokenBegin;
+ } else if (tokenBegin < 0)
+ bufpos = maxNextCharInd = 0;
+ else
+ ExpandBuff(false);
+ } else if (available > tokenBegin)
+ available = bufsize;
+ else if ((tokenBegin - available) < 2048)
+ ExpandBuff(true);
+ else
+ available = tokenBegin;
+ }
+
+ int i;
+ try {
+ if ((i = inputStream.read(buffer, maxNextCharInd,
+ available - maxNextCharInd)) == -1) {
+ inputStream.close();
+ throw new java.io.IOException();
+ } else
+ maxNextCharInd += i;
+ return;
+ } catch (java.io.IOException e) {
+ --bufpos;
+ backup(0);
+ if (tokenBegin == -1)
+ tokenBegin = bufpos;
+ throw e;
+ }
+ }
+
+ public char BeginToken() throws java.io.IOException {
+ tokenBegin = -1;
+ char c = readChar();
+ tokenBegin = bufpos;
+
+ return c;
+ }
+
+ protected void UpdateLineColumn(char c) {
+ column++;
+
+ if (prevCharIsLF) {
+ prevCharIsLF = false;
+ line += (column = 1);
+ } else if (prevCharIsCR) {
+ prevCharIsCR = false;
+ if (c == '\n') {
+ prevCharIsLF = true;
+ } else
+ line += (column = 1);
+ }
+
+ switch (c) {
+ case '\r':
+ prevCharIsCR = true;
+ break;
+ case '\n':
+ prevCharIsLF = true;
+ break;
+ case '\t':
+ column--;
+ column += (8 - (column & 07));
+ break;
+ default :
+ break;
+ }
+
+ bufline[bufpos] = line;
+ bufcolumn[bufpos] = column;
+ }
+
+ public char readChar() throws java.io.IOException {
+ if (inBuf > 0) {
+ --inBuf;
+
+ if (++bufpos == bufsize)
+ bufpos = 0;
+
+ return buffer[bufpos];
+ }
+
+ if (++bufpos >= maxNextCharInd)
+ FillBuff();
+
+ char c = buffer[bufpos];
+
+ UpdateLineColumn(c);
+ return (c);
+ }
+
+ /**
+ * @see #getEndColumn
+ * @deprecated
+ */
+
+ public int getColumn() {
+ return bufcolumn[bufpos];
+ }
+
+ /**
+ * @see #getEndLine
+ * @deprecated
+ */
+
+ public int getLine() {
+ return bufline[bufpos];
+ }
+
+ public int getEndColumn() {
+ return bufcolumn[bufpos];
+ }
+
+ public int getEndLine() {
+ return bufline[bufpos];
+ }
+
+ public int getBeginColumn() {
+ return bufcolumn[tokenBegin];
+ }
+
+ public int getBeginLine() {
+ return bufline[tokenBegin];
+ }
+
+ public void backup(int amount) {
+
+ inBuf += amount;
+ if ((bufpos -= amount) < 0)
+ bufpos += bufsize;
+ }
+
+ public SimpleCharStream(java.io.Reader dstream, int startline,
+ int startcolumn, int buffersize) {
+ inputStream = dstream;
+ line = startline;
+ column = startcolumn - 1;
+
+ available = bufsize = buffersize;
+ buffer = new char[buffersize];
+ bufline = new int[buffersize];
+ bufcolumn = new int[buffersize];
+ }
+
+ public SimpleCharStream(java.io.Reader dstream, int startline,
+ int startcolumn) {
+ this(dstream, startline, startcolumn, 4096);
+ }
+
+ public SimpleCharStream(java.io.Reader dstream) {
+ this(dstream, 1, 1, 4096);
+ }
+
+ public void ReInit(java.io.Reader dstream, int startline,
+ int startcolumn, int buffersize) {
+ inputStream = dstream;
+ line = startline;
+ column = startcolumn - 1;
+
+ if (buffer == null || buffersize != buffer.length) {
+ available = bufsize = buffersize;
+ buffer = new char[buffersize];
+ bufline = new int[buffersize];
+ bufcolumn = new int[buffersize];
+ }
+ prevCharIsLF = prevCharIsCR = false;
+ tokenBegin = inBuf = maxNextCharInd = 0;
+ bufpos = -1;
+ }
+
+ public void ReInit(java.io.Reader dstream, int startline,
+ int startcolumn) {
+ ReInit(dstream, startline, startcolumn, 4096);
+ }
+
+ public void ReInit(java.io.Reader dstream) {
+ ReInit(dstream, 1, 1, 4096);
+ }
+
+ public SimpleCharStream(java.io.InputStream dstream, int startline,
+ int startcolumn, int buffersize) {
+ this(new java.io.InputStreamReader(dstream), startline, startcolumn, 4096);
+ }
+
+ public SimpleCharStream(java.io.InputStream dstream, int startline,
+ int startcolumn) {
+ this(dstream, startline, startcolumn, 4096);
+ }
+
+ public SimpleCharStream(java.io.InputStream dstream) {
+ this(dstream, 1, 1, 4096);
+ }
+
+ public void ReInit(java.io.InputStream dstream, int startline,
+ int startcolumn, int buffersize) {
+ ReInit(new java.io.InputStreamReader(dstream), startline, startcolumn, 4096);
+ }
+
+ public void ReInit(java.io.InputStream dstream) {
+ ReInit(dstream, 1, 1, 4096);
+ }
+
+ public void ReInit(java.io.InputStream dstream, int startline,
+ int startcolumn) {
+ ReInit(dstream, startline, startcolumn, 4096);
+ }
+
+ public String GetImage() {
+ if (bufpos >= tokenBegin)
+ return new String(buffer, tokenBegin, bufpos - tokenBegin + 1);
+ else
+ return new String(buffer, tokenBegin, bufsize - tokenBegin) +
+ new String(buffer, 0, bufpos + 1);
+ }
+
+ public char[] GetSuffix(int len) {
+ char[] ret = new char[len];
+
+ if ((bufpos + 1) >= len)
+ System.arraycopy(buffer, bufpos - len + 1, ret, 0, len);
+ else {
+ System.arraycopy(buffer, bufsize - (len - bufpos - 1), ret, 0,
+ len - bufpos - 1);
+ System.arraycopy(buffer, 0, ret, len - bufpos - 1, bufpos + 1);
+ }
+
+ return ret;
+ }
+
+ public void Done() {
+ buffer = null;
+ bufline = null;
+ bufcolumn = null;
+ }
+
+ /**
+ * Method to adjust line and column numbers for the start of a token.<BR>
+ */
+ public void adjustBeginLineColumn(int newLine, int newCol) {
+ int start = tokenBegin;
+ int len;
+
+ if (bufpos >= tokenBegin) {
+ len = bufpos - tokenBegin + inBuf + 1;
+ } else {
+ len = bufsize - tokenBegin + bufpos + 1 + inBuf;
+ }
+
+ int i = 0, j = 0, k = 0;
+ int nextColDiff = 0, columnDiff = 0;
+
+ while (i < len &&
+ bufline[j = start % bufsize] == bufline[k = ++start % bufsize]) {
+ bufline[j] = newLine;
+ nextColDiff = columnDiff + bufcolumn[k] - bufcolumn[j];
+ bufcolumn[j] = newCol + columnDiff;
+ columnDiff = nextColDiff;
+ i++;
+ }
+
+ if (i < len) {
+ bufline[j] = newLine++;
+ bufcolumn[j] = newCol + columnDiff;
+
+ while (i++ < len) {
+ if (bufline[j = start % bufsize] != bufline[++start % bufsize])
+ bufline[j] = newLine++;
+ else
+ bufline[j] = newLine;
+ }
+ }
+
+ line = bufline[j];
+ column = bufcolumn[j];
+ }
+
+}
Added: struts/sandbox/trunk/ti/core/src/java/org/apache/ti/script/el/parser/Token.java
URL: http://svn.apache.org/viewcvs/struts/sandbox/trunk/ti/core/src/java/org/apache/ti/script/el/parser/Token.java?rev=240168&view=auto
==============================================================================
--- struts/sandbox/trunk/ti/core/src/java/org/apache/ti/script/el/parser/Token.java (added)
+++ struts/sandbox/trunk/ti/core/src/java/org/apache/ti/script/el/parser/Token.java Thu Aug 25 22:46:03 2005
@@ -0,0 +1,95 @@
+/*
+ * Copyright 2004 The Apache Software Foundation.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ * $Header:$
+ */
+package org.apache.ti.script.el.parser;
+
+/**
+ * Describes the input token stream.
+ */
+
+public class Token {
+
+ /**
+ * An integer that describes the kind of this token. This numbering
+ * system is determined by JavaCCParser, and a table of these numbers is
+ * stored in the file ...Constants.java.
+ */
+ public int kind;
+
+ /**
+ * beginLine and beginColumn describe the position of the first character
+ * of this token; endLine and endColumn describe the position of the
+ * last character of this token.
+ */
+ public int beginLine, beginColumn, endLine, endColumn;
+
+ /**
+ * The string image of the token.
+ */
+ public String image;
+
+ /**
+ * A reference to the next regular (non-special) token from the input
+ * stream. If this is the last token from the input stream, or if the
+ * token manager has not read tokens beyond this one, this field is
+ * set to null. This is true only if this token is also a regular
+ * token. Otherwise, see below for a description of the contents of
+ * this field.
+ */
+ public Token next;
+
+ /**
+ * This field is used to access special tokens that occur prior to this
+ * token, but after the immediately preceding regular (non-special) token.
+ * If there are no such special tokens, this field is set to null.
+ * When there are more than one such special token, this field refers
+ * to the last of these special tokens, which in turn refers to the next
+ * previous special token through its specialToken field, and so on
+ * until the first special token (whose specialToken field is null).
+ * The next fields of special tokens refer to other special tokens that
+ * immediately follow it (without an intervening regular token). If there
+ * is no such token, this field is null.
+ */
+ public Token specialToken;
+
+ /**
+ * Returns the image.
+ */
+ public String toString() {
+ return image;
+ }
+
+ /**
+ * Returns a new Token object, by default. However, if you want, you
+ * can create and return subclass objects based on the value of ofKind.
+ * Simply add the cases to the switch for all those special cases.
+ * For example, if you have a subclass of Token called IDToken that
+ * you want to create if ofKind is ID, simlpy add something like :
+ * <p/>
+ * case MyParserConstants.ID : return new IDToken();
+ * <p/>
+ * to the following switch statement. Then you can cast matchedToken
+ * variable to the appropriate type and use it in your lexical actions.
+ */
+ public static final Token newToken(int ofKind) {
+ switch (ofKind) {
+ default :
+ return new Token();
+ }
+ }
+
+}
Added: struts/sandbox/trunk/ti/core/src/java/org/apache/ti/script/el/parser/TokenMgrError.java
URL: http://svn.apache.org/viewcvs/struts/sandbox/trunk/ti/core/src/java/org/apache/ti/script/el/parser/TokenMgrError.java?rev=240168&view=auto
==============================================================================
--- struts/sandbox/trunk/ti/core/src/java/org/apache/ti/script/el/parser/TokenMgrError.java (added)
+++ struts/sandbox/trunk/ti/core/src/java/org/apache/ti/script/el/parser/TokenMgrError.java Thu Aug 25 22:46:03 2005
@@ -0,0 +1,151 @@
+/*
+ * Copyright 2004 The Apache Software Foundation.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ * $Header:$
+ */
+package org.apache.ti.script.el.parser;
+
+import org.apache.ti.util.internal.InternalStringBuilder;
+
+public class TokenMgrError
+ extends Error {
+
+ /*
+ * Ordinals for various reasons why an Error of this type can be thrown.
+ */
+
+ /**
+ * Lexical error occured.
+ */
+ static final int LEXICAL_ERROR = 0;
+
+ /**
+ * An attempt wass made to create a second instance of a static token manager.
+ */
+ static final int STATIC_LEXER_ERROR = 1;
+
+ /**
+ * Tried to change to an invalid lexical state.
+ */
+ static final int INVALID_LEXICAL_STATE = 2;
+
+ /**
+ * Detected (and bailed out of) an infinite loop in the token manager.
+ */
+ static final int LOOP_DETECTED = 3;
+
+ /**
+ * Indicates the reason why the exception is thrown. It will have
+ * one of the above 4 values.
+ */
+ int errorCode;
+
+ /**
+ * Replaces unprintable characters by their espaced (or unicode escaped)
+ * equivalents in the given string
+ */
+ protected static final String addEscapes(String str) {
+ InternalStringBuilder retval = new InternalStringBuilder();
+ char ch;
+ for (int i = 0; i < str.length(); i++) {
+ switch (str.charAt(i)) {
+ case 0:
+ continue;
+ case '\b':
+ retval.append("\\b");
+ continue;
+ case '\t':
+ retval.append("\\t");
+ continue;
+ case '\n':
+ retval.append("\\n");
+ continue;
+ case '\f':
+ retval.append("\\f");
+ continue;
+ case '\r':
+ retval.append("\\r");
+ continue;
+ case '\"':
+ retval.append("\\\"");
+ continue;
+ case '\'':
+ retval.append("\\\'");
+ continue;
+ case '\\':
+ retval.append("\\\\");
+ continue;
+ default:
+ if ((ch = str.charAt(i)) < 0x20 || ch > 0x7e) {
+ String s = "0000" + Integer.toString(ch, 16);
+ retval.append("\\u" + s.substring(s.length() - 4, s.length()));
+ } else {
+ retval.append(ch);
+ }
+ continue;
+ }
+ }
+ return retval.toString();
+ }
+
+ /**
+ * Returns a detailed message for the Error when it is thrown by the
+ * token manager to indicate a lexical error.
+ * Parameters :
+ * EOFSeen : indicates if EOF caused the lexicl error
+ * curLexState : lexical state in which this error occured
+ * errorLine : line number when the error occured
+ * errorColumn : column number when the error occured
+ * errorAfter : prefix that was seen before this error occured
+ * curchar : the offending character
+ * Note: You can customize the lexical error message by modifying this method.
+ */
+ protected static String LexicalError(boolean EOFSeen, int lexState, int errorLine, int errorColumn, String errorAfter, char curChar) {
+ return ("Lexical error at line " +
+ errorLine + ", column " +
+ errorColumn + ". Encountered: " +
+ (EOFSeen ? "<EOF> " : ("\"" + addEscapes(String.valueOf(curChar)) + "\"") + " (" + (int) curChar + "), ") +
+ "after : \"" + addEscapes(errorAfter) + "\"");
+ }
+
+ /**
+ * You can also modify the body of this method to customize your error messages.
+ * For example, cases like LOOP_DETECTED and INVALID_LEXICAL_STATE are not
+ * of end-users concern, so you can return something like :
+ * <p/>
+ * "Internal Error : Please file a bug report .... "
+ * <p/>
+ * from this method for such cases in the release version of your parser.
+ */
+ public String getMessage() {
+ return super.getMessage();
+ }
+
+ /*
+ * Constructors of various flavors follow.
+ */
+
+ public TokenMgrError() {
+ }
+
+ public TokenMgrError(String message, int reason) {
+ super(message);
+ errorCode = reason;
+ }
+
+ public TokenMgrError(boolean EOFSeen, int lexState, int errorLine, int errorColumn, String errorAfter, char curChar, int reason) {
+ this(LexicalError(EOFSeen, lexState, errorLine, errorColumn, errorAfter, curChar), reason);
+ }
+}
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