HSQLDB example source code file (Tokenizer.java)
The HSQLDB Tokenizer.java source code
/*
* For work developed by the HSQL Development Group:
*
* Copyright (c) 2001-2010, The HSQL Development Group
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* Neither the name of the HSQL Development Group nor the names of its
* contributors may be used to endorse or promote products derived from this
* software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL HSQL DEVELOPMENT GROUP, HSQLDB.ORG,
* OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
*
*
* For work originally developed by the Hypersonic SQL Group:
*
* Copyright (c) 1995-2000, The Hypersonic SQL Group.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* Neither the name of the Hypersonic SQL Group nor the names of its
* contributors may be used to endorse or promote products derived from this
* software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE HYPERSONIC SQL GROUP,
* OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* This software consists of voluntary contributions made by many individuals
* on behalf of the Hypersonic SQL Group.
*/
package org.hsqldb;
import java.math.BigDecimal;
import java.util.Locale;
import org.hsqldb.lib.IntValueHashMap;
import org.hsqldb.store.ValuePool;
import org.hsqldb.lib.java.JavaSystem;
// fredt@users 20020218 - patch 455785 by hjbusch@users - large DECIMAL inserts
// also Long.MIM_VALUE (bug 473388) inserts - applied to different parts
// fredt@users 20020408 - patch 1.7.0 by fredt - exact integral types
// integral values are cast into the smallest type that can hold them
// fredt@users 20020501 - patch 550970 by boucherb@users - fewer StringBuffers
// fredt@users 20020611 - patch 1.7.0 by fredt - correct statement logging
// changes to the working of getLastPart() to return the correct statement for
// logging in the .script file.
// also restructuring to reduce use of objects and speed up tokenising of
// strings and quoted identifiers
// fredt@users 20021112 - patch 1.7.2 by Nitin Chauhan - use of switch
// rewrite of the majority of multiple if(){}else{} chains with switch(){}
// fredt@users 20030610 - patch 1.7.2 - no StringBuffers
/**
* Provides the ability to tokenize SQL character sequences.
*
* Extensively rewritten and extended in successive versions of HSQLDB.
*
* @author Thomas Mueller (Hypersonic SQL Group)
* @version 1.8.0
* @since Hypersonic SQL
*/
public class Tokenizer {
private static final int NO_TYPE = 0,
NAME = 1,
LONG_NAME = 2,
SPECIAL = 3,
NUMBER = 4,
FLOAT = 5,
STRING = 6,
LONG = 7,
DECIMAL = 8,
BOOLEAN = 9,
DATE = 10,
TIME = 11,
TIMESTAMP = 12,
NULL = 13,
NAMED_PARAM = 14;
// used only internally
private static final int QUOTED_IDENTIFIER = 15,
REMARK_LINE = 16,
REMARK = 17;
private String sCommand;
private int iLength;
private int iIndex;
private int tokenIndex;
private int nextTokenIndex;
private int beginIndex;
private int iType;
private String sToken;
private int indexLongNameFirst = -1;
private String sLongNameFirst = null;
private int typeLongNameFirst;
// getToken() will clear LongNameFirst unless retainFirst is set.
private boolean retainFirst = false;
// private String sLongNameLast;
// WAIT. Don't do anything before popping another Token (because the
// state variables aren't set properly due to a call of wait()).
private boolean bWait;
private boolean lastTokenQuotedID;
// literals that are values
static IntValueHashMap valueTokens;
static {
valueTokens = new IntValueHashMap();
valueTokens.put(Token.T_NULL, NULL);
valueTokens.put(Token.T_TRUE, BOOLEAN);
valueTokens.put(Token.T_FALSE, BOOLEAN);
}
public Tokenizer() {}
public Tokenizer(String s) {
sCommand = s;
iLength = s.length();
iIndex = 0;
}
public void reset(String s) {
sCommand = s;
iLength = s.length();
iIndex = 0;
tokenIndex = 0;
nextTokenIndex = 0;
beginIndex = 0;
iType = NO_TYPE;
typeLongNameFirst = NO_TYPE;
sToken = null;
indexLongNameFirst = -1;
sLongNameFirst = null;
// sLongNameLast = null;
bWait = false;
lastTokenQuotedID = false;
retainFirst = false;
}
/**
*
* @throws HsqlException
*/
void back() throws HsqlException {
if (bWait) {
Trace.doAssert(false, "Querying state when in Wait mode");
}
nextTokenIndex = iIndex;
iIndex = ( indexLongNameFirst != -1 ) ? indexLongNameFirst : tokenIndex;
bWait = true;
}
/**
* get the given token or throw
*
* for commands and simple unquoted identifiers only
*
* @param match
*
* @throws HsqlException
*/
String getThis(String match) throws HsqlException {
getToken();
matchThis(match);
return sToken;
}
/**
* for commands and simple unquoted identifiers only
*/
void matchThis(String match) throws HsqlException {
if (bWait) {
Trace.doAssert(false, "Querying state when in Wait mode");
}
if (!sToken.equals(match) || iType == QUOTED_IDENTIFIER
|| iType == LONG_NAME) {
String token = iType == LONG_NAME ? sLongNameFirst
: sToken;
throw Trace.error(Trace.UNEXPECTED_TOKEN, Trace.TOKEN_REQUIRED,
new Object[] {
token, match
});
}
}
void throwUnexpected() throws HsqlException {
String token = iType == LONG_NAME ? sLongNameFirst
: sToken;
throw Trace.error(Trace.UNEXPECTED_TOKEN, token);
}
/**
* Used for commands only
*
*
* @param match
*/
public boolean isGetThis(String match) throws HsqlException {
getToken();
if (iType != QUOTED_IDENTIFIER && iType != LONG_NAME
&& sToken.equals(match)) {
return true;
}
back();
return false;
}
/**
* this methode is called before other wasXXX methods and takes
* precedence
*/
boolean wasValue() throws HsqlException {
if (bWait) {
Trace.doAssert(false, "Querying state when in Wait mode");
}
switch (iType) {
case STRING :
case NUMBER :
case LONG :
case FLOAT :
case DECIMAL :
case BOOLEAN :
case NULL :
return true;
default :
return false;
}
}
boolean wasQuotedIdentifier() throws HsqlException {
if (bWait) {
Trace.doAssert(false, "Querying state when in Wait mode");
}
return lastTokenQuotedID;
// iType won't help for LONG_NAMEs.
//return iType == QUOTED_IDENTIFIER;
}
boolean wasFirstQuotedIdentifier() throws HsqlException {
if (bWait) {
Trace.doAssert(false, "Querying state when in Wait mode");
}
return (typeLongNameFirst == QUOTED_IDENTIFIER);
}
/**
* Method declaration
*
*
* @return
*/
boolean wasLongName() throws HsqlException {
if (bWait) {
Trace.doAssert(false, "Querying state when in Wait mode");
}
return iType == LONG_NAME;
}
/**
* Simple Name means a quoted or unquoted identifier without
* qualifiers provided it is not in the hKeyword list.
*
* @return
*/
boolean wasSimpleName() throws HsqlException {
if (bWait) {
Trace.doAssert(false, "Querying state when in Wait mode");
}
if (iType == QUOTED_IDENTIFIER && sToken.length() != 0) {
return true;
}
if (iType != NAME) {
return false;
}
return !Token.isKeyword(sToken);
}
/**
* checks whether the previously obtained token was a (named) parameter
*
* @return true if the previously obtained token was a (named) parameter
*/
boolean wasParameter() throws HsqlException {
Trace.doAssert(!bWait, "Querying state when in Wait mode");
return (iType == NAMED_PARAM);
}
/**
* Name means all quoted and unquoted identifiers plus any word not in the
* hKeyword list.
*
* @return true if it's a name
*/
boolean wasName() throws HsqlException {
if (bWait) {
Trace.doAssert(false, "Querying state when in Wait mode");
}
if (iType == QUOTED_IDENTIFIER) {
return true;
}
if (iType != NAME && iType != LONG_NAME) {
return false;
}
return !Token.isKeyword(sToken);
}
String getLongNamePre() throws HsqlException {
return null;
}
/**
* Return first part of long name
*
*
* @return
*/
String getLongNameFirst() throws HsqlException {
if (bWait) {
Trace.doAssert(false, "Querying state when in Wait mode");
}
return sLongNameFirst;
}
boolean wasSimpleToken() throws HsqlException {
return iType != QUOTED_IDENTIFIER && iType != LONG_NAME
&& iType != STRING && iType != NAMED_PARAM;
}
String getSimpleToken() throws HsqlException {
getToken();
if (!wasSimpleToken()) {
String token = iType == LONG_NAME ? sLongNameFirst
: sToken;
throw Trace.error(Trace.UNEXPECTED_TOKEN, token);
}
return sToken;
}
public boolean wasThis(String match) throws HsqlException {
if (sToken.equals(match) && iType != QUOTED_IDENTIFIER
&& iType != LONG_NAME && iType != STRING) {
return true;
}
return false;
}
/**
* getName() is more broad than getSimpleName() in that it includes
* 2-part names as well
*
* @return popped name
* @throws HsqlException if next token is not an AName
*/
public String getName() throws HsqlException {
getToken();
if (!wasName()) {
throw Trace.error(Trace.UNEXPECTED_TOKEN, sToken);
}
return sToken;
}
/**
* Returns a single, unqualified name (identifier)
*
* @return name
* @throws HsqlException
*/
public String getSimpleName() throws HsqlException {
getToken();
if (!wasSimpleName()) {
String token = iType == LONG_NAME ? sLongNameFirst
: sToken;
throw Trace.error(Trace.UNEXPECTED_TOKEN, token);
}
return sToken;
}
/**
* Return any token.
*
*
* @return
*
* @throws HsqlException
*/
public String getString() throws HsqlException {
getToken();
return sToken;
}
int getInt() throws HsqlException {
long v = getBigint();
if (v > Integer.MAX_VALUE || v < Integer.MIN_VALUE) {
throw Trace.error(Trace.WRONG_DATA_TYPE,
Types.getTypeString(getType()));
}
return (int) v;
}
static BigDecimal LONG_MAX_VALUE_INCREMENT =
BigDecimal.valueOf(Long.MAX_VALUE).add(BigDecimal.valueOf(1));
long getBigint() throws HsqlException {
boolean minus = false;
getToken();
if (sToken.equals("-")) {
minus = true;
getToken();
}
Object o = getAsValue();
int t = getType();
switch (t) {
case Types.INTEGER :
case Types.BIGINT :
break;
case Types.DECIMAL :
// only Long.MAX_VALUE + 1 together with minus is acceptable
if (minus && LONG_MAX_VALUE_INCREMENT.equals(o)) {
return Long.MIN_VALUE;
}
default :
throw Trace.error(Trace.WRONG_DATA_TYPE,
Types.getTypeString(t));
}
long v = ((Number) o).longValue();
return minus ? -v
: v;
}
Object getInType(int type) throws HsqlException {
getToken();
Object o = getAsValue();
int t = getType();
if (t != type) {
throw Trace.error(Trace.WRONG_DATA_TYPE, Types.getTypeString(t));
}
return o;
}
/**
*
*
*
* @return
*/
public int getType() throws HsqlException {
if (bWait) {
Trace.doAssert(false, "Querying state when in Wait mode");
}
// todo: make sure it's used only for Values!
// todo: synchronize iType with hColumn
switch (iType) {
case STRING :
return Types.VARCHAR;
case NUMBER :
return Types.INTEGER;
case LONG :
return Types.BIGINT;
case FLOAT :
return Types.DOUBLE;
case DECIMAL :
return Types.DECIMAL;
case BOOLEAN :
return Types.BOOLEAN;
case DATE :
return Types.DATE;
case TIME :
return Types.TIME;
case TIMESTAMP :
return Types.TIMESTAMP;
default :
return Types.NULL;
}
}
/**
* Method declaration
*
*
* @return
*
* @throws HsqlException
*/
Object getAsValue() throws HsqlException {
if (!wasValue()) {
throw Trace.error(Trace.UNEXPECTED_TOKEN, sToken);
}
switch (iType) {
case NULL :
return null;
case STRING :
//fredt - no longer returning string with a singlequote as last char
return sToken;
case LONG :
return ValuePool.getLong(Long.parseLong(sToken));
case NUMBER :
// fredt - this returns unsigned values which are later negated.
// as a result Integer.MIN_VALUE or Long.MIN_VALUE are promoted
// to a wider type.
if (sToken.length() < 11) {
try {
return ValuePool.getInt(Integer.parseInt(sToken));
} catch (Exception e1) {}
}
if (sToken.length() < 20) {
try {
iType = LONG;
return ValuePool.getLong(Long.parseLong(sToken));
} catch (Exception e2) {}
}
iType = DECIMAL;
return new BigDecimal(sToken);
case FLOAT :
double d = JavaSystem.parseDouble(sToken);
long l = Double.doubleToLongBits(d);
return ValuePool.getDouble(l);
case DECIMAL :
return new BigDecimal(sToken);
case BOOLEAN :
return sToken.equalsIgnoreCase("TRUE") ? Boolean.TRUE
: Boolean.FALSE;
case DATE :
return HsqlDateTime.dateValue(sToken);
case TIME :
return HsqlDateTime.timeValue(sToken);
case TIMESTAMP :
return HsqlDateTime.timestampValue(sToken);
default :
return sToken;
}
}
/**
* return the current position to be used for VIEW processing
*
* @return
*/
int getPosition() {
return iIndex;
}
/**
* mark the current position to be used for future getLastPart() calls
*
* @return
*/
String getPart(int begin, int end) {
return sCommand.substring(begin, end);
}
/**
* mark the current position to be used for future getLastPart() calls
*
* @return
*/
int getPartMarker() {
return beginIndex;
}
/**
* mark the current position to be used for future getLastPart() calls
*
*/
void setPartMarker() {
beginIndex = iIndex;
}
/**
* mark the position to be used for future getLastPart() calls
*
*/
void setPartMarker(int position) {
beginIndex = position;
}
/**
* return part of the command string from the last marked position
*
* @return
*/
String getLastPart() {
return sCommand.substring(beginIndex, iIndex);
}
// fredt@users 20020910 - patch 1.7.1 by Nitin Chauhan - rewrite as switch
/**
* Method declaration
*
*
* @throws HsqlException
*/
private void getToken() throws HsqlException {
if (bWait) {
bWait = false;
iIndex = nextTokenIndex;
return;
}
if (!retainFirst) {
sLongNameFirst = null;
indexLongNameFirst = -1;
typeLongNameFirst = NO_TYPE;
}
while (iIndex < iLength
&& Character.isWhitespace(sCommand.charAt(iIndex))) {
iIndex++;
}
sToken = "";
tokenIndex = iIndex;
if (iIndex >= iLength) {
iType = NO_TYPE;
return;
}
char c = sCommand.charAt(iIndex);
boolean point = false,
digit = false,
exp = false,
afterexp = false;
boolean end = false;
char cfirst = 0;
lastTokenQuotedID = false;
if (Character.isJavaIdentifierStart(c)) {
iType = NAME;
} else if (Character.isDigit(c)) {
iType = NUMBER;
digit = true;
} else {
switch (c) {
case '(' :
sToken = Token.T_OPENBRACKET;
iType = SPECIAL;
iIndex++;
return;
case ')' :
sToken = Token.T_CLOSEBRACKET;
iType = SPECIAL;
iIndex++;
return;
case ',' :
sToken = Token.T_COMMA;
iType = SPECIAL;
iIndex++;
return;
case '*' :
sToken = Token.T_MULTIPLY;
iType = SPECIAL;
iIndex++;
return;
case '=' :
sToken = Token.T_EQUALS;
iType = SPECIAL;
iIndex++;
return;
case ';' :
sToken = Token.T_SEMICOLON;
iType = SPECIAL;
iIndex++;
return;
case '+' :
sToken = Token.T_PLUS;
iType = SPECIAL;
iIndex++;
return;
case '%' :
sToken = Token.T_PERCENT;
iType = SPECIAL;
iIndex++;
return;
case '?' :
sToken = Token.T_QUESTION;
iType = SPECIAL;
iIndex++;
return;
case ':' :
Trace.check(++iIndex < iLength,
Trace.UNEXPECTED_END_OF_COMMAND);
c = sCommand.charAt(iIndex);
Trace.check(Character.isJavaIdentifierStart(c),
Trace.INVALID_IDENTIFIER, ":" + c);
iType = NAMED_PARAM;
break;
case '\"' :
lastTokenQuotedID = true;
iType = QUOTED_IDENTIFIER;
iIndex++;
sToken = getString('"');
if (iIndex == sCommand.length()) {
return;
}
c = sCommand.charAt(iIndex);
if (c == '.') {
sLongNameFirst = sToken;
indexLongNameFirst = tokenIndex;
typeLongNameFirst = iType;
iIndex++;
if (retainFirst) {
throw Trace.error(Trace.THREE_PART_IDENTIFIER);
}
// fredt - todo - avoid recursion - this has problems when there is whitespace
// after the dot - the same with NAME
retainFirst = true;
getToken();
retainFirst = false;
iType = LONG_NAME;
}
return;
case '\'' :
iType = STRING;
iIndex++;
sToken = getString('\'');
return;
case '!' :
case '<' :
case '>' :
case '|' :
case '/' :
case '-' :
cfirst = c;
iType = SPECIAL;
break;
case '.' :
iType = DECIMAL;
point = true;
break;
default :
throw Trace.error(Trace.UNEXPECTED_TOKEN,
String.valueOf(c));
}
}
int start = iIndex++;
while (true) {
if (iIndex >= iLength) {
c = ' ';
end = true;
Trace.check(iType != STRING && iType != QUOTED_IDENTIFIER,
Trace.UNEXPECTED_END_OF_COMMAND);
} else {
c = sCommand.charAt(iIndex);
}
switch (iType) {
case NAMED_PARAM :
case NAME :
if (Character.isJavaIdentifierPart(c)) {
break;
}
// fredt - todo new char[] to back sToken
sToken =
sCommand.substring(start,
iIndex).toUpperCase(Locale.ENGLISH);
// the following only for NAME, not for NAMED_PARAM
if (iType == NAMED_PARAM) {
return;
}
if (c == '.') {
typeLongNameFirst = iType;
sLongNameFirst = sToken;
indexLongNameFirst = tokenIndex;
iIndex++;
if (retainFirst) {
throw Trace.error(Trace.THREE_PART_IDENTIFIER);
}
retainFirst = true;
getToken(); // todo: eliminate recursion
retainFirst = false;
iType = LONG_NAME;
} else if (c == '(') {
// it is a function call
} else {
// if in value list then it is a value
int type = valueTokens.get(sToken, -1);
if (type != -1) {
iType = type;
}
}
return;
case QUOTED_IDENTIFIER :
case STRING :
// shouldn't get here
break;
case REMARK :
if (end) {
// unfinished remark
// maybe print error here
iType = NO_TYPE;
return;
} else if (c == '*') {
iIndex++;
if (iIndex < iLength
&& sCommand.charAt(iIndex) == '/') {
// using recursion here
iIndex++;
getToken();
return;
}
}
break;
case REMARK_LINE :
if (end) {
iType = NO_TYPE;
return;
} else if (c == '\r' || c == '\n') {
// using recursion here
getToken();
return;
}
break;
case SPECIAL :
if (c == '/' && cfirst == '/') {
iType = REMARK_LINE;
break;
} else if (c == '-' && cfirst == '-') {
iType = REMARK_LINE;
break;
} else if (c == '*' && cfirst == '/') {
iType = REMARK;
break;
} else if (c == '>' || c == '=' || c == '|') {
break;
}
sToken = sCommand.substring(start, iIndex);
return;
case NUMBER :
case FLOAT :
case DECIMAL :
if (Character.isDigit(c)) {
digit = true;
} else if (c == '.') {
iType = DECIMAL;
if (point) {
throw Trace.error(Trace.UNEXPECTED_TOKEN, ".");
}
point = true;
} else if (c == 'E' || c == 'e') {
if (exp) {
throw Trace.error(Trace.UNEXPECTED_TOKEN, "E");
}
// HJB-2001-08-2001 - now we are sure it's a float
iType = FLOAT;
// first character after exp may be + or -
afterexp = true;
point = true;
exp = true;
} else if (c == '-' && afterexp) {
afterexp = false;
} else if (c == '+' && afterexp) {
afterexp = false;
} else {
afterexp = false;
if (!digit) {
if (point && start == iIndex - 1) {
sToken = ".";
iType = SPECIAL;
return;
}
throw Trace.error(Trace.UNEXPECTED_TOKEN,
String.valueOf(c));
}
sToken = sCommand.substring(start, iIndex);
return;
}
}
iIndex++;
}
}
// fredt - strings are constructed from new char[] objects to avoid slack
// because these strings might end up as part of internal data structures
// or table elements.
// we may consider using pools to avoid recreating the strings
private String getString(char quoteChar) throws HsqlException {
try {
int nextIndex = iIndex;
boolean quoteInside = false;
for (;;) {
nextIndex = sCommand.indexOf(quoteChar, nextIndex);
if (nextIndex < 0) {
throw Trace.error(Trace.UNEXPECTED_END_OF_COMMAND);
}
if (nextIndex < iLength - 1
&& sCommand.charAt(nextIndex + 1) == quoteChar) {
quoteInside = true;
nextIndex += 2;
continue;
}
break;
}
char[] chBuffer = new char[nextIndex - iIndex];
sCommand.getChars(iIndex, nextIndex, chBuffer, 0);
int j = chBuffer.length;
if (quoteInside) {
j = 0;
// fredt - loop assumes all occurences of quoteChar are paired
// this has already been checked by the preprocessing loop
for (int i = 0; i < chBuffer.length; i++, j++) {
if (chBuffer[i] == quoteChar) {
i++;
}
chBuffer[j] = chBuffer[i];
}
}
iIndex = ++nextIndex;
return new String(chBuffer, 0, j);
} catch (HsqlException e) {
throw e;
} catch (Exception e) {
e.toString();
}
return null;
}
/**
* Method declaration
*
*
* @return
*/
int getLength() {
return iLength;
}
}
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