Repository: qpid-jms Updated Branches: refs/heads/master c133d5906 -> 3fb96f273
http://git-wip-us.apache.org/repos/asf/qpid-jms/blob/3fb96f27/qpid-jms-client/src/main/java/org/apache/qpid/jms/selector/parser/SimpleCharStream.java ---------------------------------------------------------------------- diff --git a/qpid-jms-client/src/main/java/org/apache/qpid/jms/selector/parser/SimpleCharStream.java b/qpid-jms-client/src/main/java/org/apache/qpid/jms/selector/parser/SimpleCharStream.java index 1b2c2cb..1eae6de 100644 --- a/qpid-jms-client/src/main/java/org/apache/qpid/jms/selector/parser/SimpleCharStream.java +++ b/qpid-jms-client/src/main/java/org/apache/qpid/jms/selector/parser/SimpleCharStream.java @@ -19,470 +19,420 @@ package org.apache.qpid.jms.selector.parser; +import java.io.IOException; + /** - * An implementation of interface CharStream, where the stream is assumed to - * contain only ASCII characters (without unicode processing). + * An implementation of interface CharStream, where the stream is assumed to contain only ASCII characters (without unicode processing). */ +public class SimpleCharStream { + + /** Whether parser is static. */ + public static final boolean staticFlag = false; + int bufsize; + int available; + int tokenBegin; + /** Position in buffer. */ + 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 int tabSize = 8; + + protected void setTabSize(int i) { + tabSize = i; + } + + protected int getTabSize(int i) { + return tabSize; + } + + 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; -public class SimpleCharStream -{ -/** Whether parser is static. */ - public static final boolean staticFlag = false; - int bufsize; - int available; - int tokenBegin; -/** Position in buffer. */ - 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 int tabSize = 8; - - protected void setTabSize(int i) { tabSize = i; } - protected int getTabSize(int i) { return tabSize; } - - - 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; + 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()); } - else if (tokenBegin < 0) - bufpos = maxNextCharInd = 0; - else - ExpandBuff(false); - } - else if (available > tokenBegin) + + bufsize += 2048; 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 = 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; + } + } + + /** + * @return the start token. + * @throws IOException if an error occurs reading the token. + */ + public char BeginToken() throws java.io.IOException { + tokenBegin = -1; + char c = readChar(); tokenBegin = bufpos; - throw e; - } - } - -/** Start. */ - 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 += (tabSize - (column % tabSize)); - break; - default : - break; - } - - bufline[bufpos] = line; - bufcolumn[bufpos] = column; - } - -/** Read a character. */ - 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; - } - - @Deprecated - /** - * @deprecated - * @see #getEndColumn - */ - - public int getColumn() { - return bufcolumn[bufpos]; - } - - @Deprecated - /** - * @deprecated - * @see #getEndLine - */ - - public int getLine() { - return bufline[bufpos]; - } - - /** Get token end column number. */ - public int getEndColumn() { - return bufcolumn[bufpos]; - } - - /** Get token end line number. */ - public int getEndLine() { - return bufline[bufpos]; - } - - /** Get token beginning column number. */ - public int getBeginColumn() { - return bufcolumn[tokenBegin]; - } - - /** Get token beginning line number. */ - public int getBeginLine() { - return bufline[tokenBegin]; - } - -/** Backup a number of characters. */ - public void backup(int amount) { - - inBuf += amount; - if ((bufpos -= amount) < 0) - bufpos += bufsize; - } - - /** Constructor. */ - 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]; - } - - /** Constructor. */ - public SimpleCharStream(java.io.Reader dstream, int startline, - int startcolumn) - { - this(dstream, startline, startcolumn, 4096); - } - - /** Constructor. */ - public SimpleCharStream(java.io.Reader dstream) - { - this(dstream, 1, 1, 4096); - } - - /** Reinitialise. */ - 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; - } - - /** Reinitialise. */ - public void ReInit(java.io.Reader dstream, int startline, - int startcolumn) - { - ReInit(dstream, startline, startcolumn, 4096); - } - - /** Reinitialise. */ - public void ReInit(java.io.Reader dstream) - { - ReInit(dstream, 1, 1, 4096); - } - /** Constructor. */ - public SimpleCharStream(java.io.InputStream dstream, String encoding, int startline, - int startcolumn, int buffersize) throws java.io.UnsupportedEncodingException - { - this(encoding == null ? new java.io.InputStreamReader(dstream) : new java.io.InputStreamReader(dstream, encoding), startline, startcolumn, buffersize); - } - - /** Constructor. */ - public SimpleCharStream(java.io.InputStream dstream, int startline, - int startcolumn, int buffersize) - { - this(new java.io.InputStreamReader(dstream), startline, startcolumn, buffersize); - } - - /** Constructor. */ - public SimpleCharStream(java.io.InputStream dstream, String encoding, int startline, - int startcolumn) throws java.io.UnsupportedEncodingException - { - this(dstream, encoding, startline, startcolumn, 4096); - } - - /** Constructor. */ - public SimpleCharStream(java.io.InputStream dstream, int startline, - int startcolumn) - { - this(dstream, startline, startcolumn, 4096); - } - - /** Constructor. */ - public SimpleCharStream(java.io.InputStream dstream, String encoding) throws java.io.UnsupportedEncodingException - { - this(dstream, encoding, 1, 1, 4096); - } - - /** Constructor. */ - public SimpleCharStream(java.io.InputStream dstream) - { - this(dstream, 1, 1, 4096); - } - - /** Reinitialise. */ - public void ReInit(java.io.InputStream dstream, String encoding, int startline, - int startcolumn, int buffersize) throws java.io.UnsupportedEncodingException - { - ReInit(encoding == null ? new java.io.InputStreamReader(dstream) : new java.io.InputStreamReader(dstream, encoding), startline, startcolumn, buffersize); - } - - /** Reinitialise. */ - public void ReInit(java.io.InputStream dstream, int startline, - int startcolumn, int buffersize) - { - ReInit(new java.io.InputStreamReader(dstream), startline, startcolumn, buffersize); - } - - /** Reinitialise. */ - public void ReInit(java.io.InputStream dstream, String encoding) throws java.io.UnsupportedEncodingException - { - ReInit(dstream, encoding, 1, 1, 4096); - } - - /** Reinitialise. */ - public void ReInit(java.io.InputStream dstream) - { - ReInit(dstream, 1, 1, 4096); - } - /** Reinitialise. */ - public void ReInit(java.io.InputStream dstream, String encoding, int startline, - int startcolumn) throws java.io.UnsupportedEncodingException - { - ReInit(dstream, encoding, startline, startcolumn, 4096); - } - /** Reinitialise. */ - public void ReInit(java.io.InputStream dstream, int startline, - int startcolumn) - { - ReInit(dstream, startline, startcolumn, 4096); - } - /** Get token literal value. */ - 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); - } - - /** Get the suffix. */ - 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; - } - - /** Reset buffer when finished. */ - public void Done() - { - buffer = null; - bufline = null; - bufcolumn = null; - } - - /** - * Method to adjust line and column numbers for the start of a token. - */ - 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++; + + 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 += (tabSize - (column % tabSize)); + break; + default: + break; + } + + bufline[bufpos] = line; + bufcolumn[bufpos] = column; + } + + /** + * @return the next character from the stream. + * + * @throws IOException if an error occurs while reading from the stream. + */ + 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; + } + + /** + * @return token end column number. + * @deprecated("call getEndColumn instead") + * @see #getEndColumn + */ + @Deprecated + public int getColumn() { + return bufcolumn[bufpos]; + } + + /** + * @return token end line number. + * @deprecated("call getEndLine instead") + * @see #getEndLine + */ + @Deprecated + public int getLine() { + return bufline[bufpos]; + } + + /** + * @return token end column number. + */ + public int getEndColumn() { + return bufcolumn[bufpos]; + } + + /** + * @return token end line number. + */ + public int getEndLine() { + return bufline[bufpos]; + } + + /** + * @return token beginning column number. + */ + public int getBeginColumn() { + return bufcolumn[tokenBegin]; + } + + /** + * @return token beginning line number. + */ + public int getBeginLine() { + return bufline[tokenBegin]; + } + + /** + * Backup a number of characters. + * + * @param amount the amount to backup. + */ + 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, String encoding, int startline, int startcolumn, int buffersize) + throws java.io.UnsupportedEncodingException { + this(encoding == null ? new java.io.InputStreamReader(dstream) : new java.io.InputStreamReader(dstream, encoding), startline, startcolumn, buffersize); + } + + public SimpleCharStream(java.io.InputStream dstream, int startline, int startcolumn, int buffersize) { + this(new java.io.InputStreamReader(dstream), startline, startcolumn, buffersize); + } + + public SimpleCharStream(java.io.InputStream dstream, String encoding, int startline, int startcolumn) throws java.io.UnsupportedEncodingException { + this(dstream, encoding, startline, startcolumn, 4096); + } + + public SimpleCharStream(java.io.InputStream dstream, int startline, int startcolumn) { + this(dstream, startline, startcolumn, 4096); + } + + public SimpleCharStream(java.io.InputStream dstream, String encoding) throws java.io.UnsupportedEncodingException { + this(dstream, encoding, 1, 1, 4096); + } + + public SimpleCharStream(java.io.InputStream dstream) { + this(dstream, 1, 1, 4096); + } + + public void ReInit(java.io.InputStream dstream, String encoding, int startline, int startcolumn, int buffersize) + throws java.io.UnsupportedEncodingException { + ReInit(encoding == null ? new java.io.InputStreamReader(dstream) : new java.io.InputStreamReader(dstream, encoding), startline, startcolumn, buffersize); + } + + public void ReInit(java.io.InputStream dstream, int startline, int startcolumn, int buffersize) { + ReInit(new java.io.InputStreamReader(dstream), startline, startcolumn, buffersize); + } + + public void ReInit(java.io.InputStream dstream, String encoding) throws java.io.UnsupportedEncodingException { + ReInit(dstream, encoding, 1, 1, 4096); + } + + public void ReInit(java.io.InputStream dstream) { + ReInit(dstream, 1, 1, 4096); + } + + public void ReInit(java.io.InputStream dstream, String encoding, int startline, int startcolumn) throws java.io.UnsupportedEncodingException { + ReInit(dstream, encoding, startline, startcolumn, 4096); + } + + public void ReInit(java.io.InputStream dstream, int startline, int startcolumn) { + ReInit(dstream, startline, startcolumn, 4096); + } + + /** + * @return Get token literal value. + */ + public String GetImage() { + if (bufpos >= tokenBegin) + return new String(buffer, tokenBegin, bufpos - tokenBegin + 1); else - bufline[j] = newLine; - } + return new String(buffer, tokenBegin, bufsize - tokenBegin) + new String(buffer, 0, bufpos + 1); } - line = bufline[j]; - column = bufcolumn[j]; - } + /** + * Get the suffix. + * + * @param len + * the length of the suffix. + * + * @return the suffix value. + */ + 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; + } + + /** Reset buffer when finished. */ + public void Done() { + buffer = null; + bufline = null; + bufcolumn = null; + } + + /** + * Method to adjust line and column numbers for the start of a token. + * + * @param newLine the new line value. + * @param newCol the new column value. + */ + 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]; + } } /* JavaCC - OriginalChecksum=ac8b2f4ec558af93922e83fa0aabd734 (do not edit this line) */ http://git-wip-us.apache.org/repos/asf/qpid-jms/blob/3fb96f27/qpid-jms-client/src/main/java/org/apache/qpid/jms/selector/parser/Token.java ---------------------------------------------------------------------- diff --git a/qpid-jms-client/src/main/java/org/apache/qpid/jms/selector/parser/Token.java b/qpid-jms-client/src/main/java/org/apache/qpid/jms/selector/parser/Token.java index 1a770ec..03c53df 100644 --- a/qpid-jms-client/src/main/java/org/apache/qpid/jms/selector/parser/Token.java +++ b/qpid-jms-client/src/main/java/org/apache/qpid/jms/selector/parser/Token.java @@ -22,127 +22,126 @@ package org.apache.qpid.jms.selector.parser; /** * Describes the input token stream. */ - public class Token implements java.io.Serializable { - /** - * The version identifier for this Serializable class. - * Increment only if the <i>serialized</i> form of the - * class changes. - */ - private static final long serialVersionUID = 1L; - - /** - * 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; - - /** The line number of the first character of this Token. */ - public int beginLine; - /** The column number of the first character of this Token. */ - public int beginColumn; - /** The line number of the last character of this Token. */ - public int endLine; - /** The column number of the last character of this Token. */ - public int 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; - - /** - * An optional attribute value of the Token. - * Tokens which are not used as syntactic sugar will often contain - * meaningful values that will be used later on by the compiler or - * interpreter. This attribute value is often different from the image. - * Any subclass of Token that actually wants to return a non-null value can - * override this method as appropriate. - */ - public Object getValue() { - return null; - } - - /** - * No-argument constructor - */ - public Token() {} - - /** - * Constructs a new token for the specified Image. - */ - public Token(int kind) - { - this(kind, null); - } - - /** - * Constructs a new token for the specified Image and Kind. - */ - public Token(int kind, String image) - { - this.kind = kind; - this.image = image; - } - - /** - * 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, simply add something like : - * - * case MyParserConstants.ID : return new IDToken(ofKind, image); - * - * to the following switch statement. Then you can cast matchedToken - * variable to the appropriate type and use sit in your lexical actions. - */ - public static Token newToken(int ofKind, String image) - { - switch(ofKind) - { - default : return new Token(ofKind, image); + /** + * The version identifier for this Serializable class. Increment only if the <i>serialized</i> + * form of the class changes. + */ + private static final long serialVersionUID = 1L; + + /** + * 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; + + /** The line number of the first character of this Token. */ + public int beginLine; + /** The column number of the first character of this Token. */ + public int beginColumn; + /** The line number of the last character of this Token. */ + public int endLine; + /** The column number of the last character of this Token. */ + public int 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; + + /** + * An optional attribute value of the Token. Tokens which are not used as syntactic sugar will + * often contain meaningful values that will be used later on by the compiler or interpreter. + * This attribute value is often different from the image. Any subclass of Token that actually + * wants to return a non-null value can override this method as appropriate. + * + * @return the current value. + */ + public Object getValue() { + return null; + } + + /** + * No-argument constructor + */ + public Token() { + } + + /** + * Constructs a new token for the specified Image. + * + * @param kind + * The kind value for this token. + */ + public Token(int kind) { + this(kind, null); + } + + /** + * Constructs a new token for the specified Image and Kind. + * + * @param kind + * The kind value for this token. + * @param image + * The image value for this token. + */ + public Token(int kind, String image) { + this.kind = kind; + this.image = image; + } + + @Override + public String toString() { + return image; } - } - public static Token newToken(int ofKind) - { - return newToken(ofKind, null); - } + /** + * 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, simply add something like : + * + * case MyParserConstants.ID : return new IDToken(ofKind, image); + * + * to the following switch statement. Then you can cast matchedToken variable to the appropriate + * type and use sit in your lexical actions. + * + * @param ofKind the kind value for the target token. + * @param image the image value for the target token. + * + * @return a new token of the requested kind. + */ + public static Token newToken(int ofKind, String image) { + switch (ofKind) { + default: + return new Token(ofKind, image); + } + } + + public static Token newToken(int ofKind) { + return newToken(ofKind, null); + } } /* JavaCC - OriginalChecksum=b9718943b752e42fc7fc14fc13768b7b (do not edit this line) */ http://git-wip-us.apache.org/repos/asf/qpid-jms/blob/3fb96f27/qpid-jms-client/src/main/java/org/apache/qpid/jms/selector/parser/TokenMgrError.java ---------------------------------------------------------------------- diff --git a/qpid-jms-client/src/main/java/org/apache/qpid/jms/selector/parser/TokenMgrError.java b/qpid-jms-client/src/main/java/org/apache/qpid/jms/selector/parser/TokenMgrError.java index 7641a2d..4670dc2 100644 --- a/qpid-jms-client/src/main/java/org/apache/qpid/jms/selector/parser/TokenMgrError.java +++ b/qpid-jms-client/src/main/java/org/apache/qpid/jms/selector/parser/TokenMgrError.java @@ -20,145 +20,127 @@ package org.apache.qpid.jms.selector.parser; /** Token Manager Error. */ -public class TokenMgrError extends Error -{ - - /** - * The version identifier for this Serializable class. - * Increment only if the <i>serialized</i> form of the - * class changes. - */ - private static final long serialVersionUID = 1L; - - /* - * Ordinals for various reasons why an Error of this type can be thrown. - */ - - /** - * Lexical error occurred. - */ - static final int LEXICAL_ERROR = 0; - - /** - * An attempt was 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 escaped (or unicode escaped) - * equivalents in the given string - */ - protected static final String addEscapes(String str) { - StringBuffer retval = new StringBuffer(); - 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; - } +public class TokenMgrError extends Error { + + /** + * The version identifier for this Serializable class. Increment only if the <i>serialized</i> form of the class changes. + */ + private static final long serialVersionUID = 1L; + + /* + * Ordinals for various reasons why an Error of this type can be thrown. + */ + + /** + * Lexical error occurred. + */ + static final int LEXICAL_ERROR = 0; + + /** + * An attempt was 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 escaped (or unicode escaped) equivalents in the given string + */ + protected static final String addEscapes(String str) { + StringBuffer retval = new StringBuffer(); + 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 lexical error curLexState : lexical state in which this error occurred errorLine : line number when the error occurred errorColumn : column + * number when the error occurred errorAfter : prefix that was seen before this error occurred 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 : + * + * "Internal Error : Please file a bug report .... " + * + * from this method for such cases in the release version of your parser. + */ + @Override + 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); } - 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 lexical error - * curLexState : lexical state in which this error occurred - * errorLine : line number when the error occurred - * errorColumn : column number when the error occurred - * errorAfter : prefix that was seen before this error occurred - * 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 : - * - * "Internal Error : Please file a bug report .... " - * - * from this method for such cases in the release version of your parser. - */ - public String getMessage() { - return super.getMessage(); - } - - /* - * Constructors of various flavors follow. - */ - - /** No arg constructor. */ - public TokenMgrError() { - } - - /** Constructor with message and reason. */ - public TokenMgrError(String message, int reason) { - super(message); - errorCode = reason; - } - - /** Full Constructor. */ - 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); - } } /* JavaCC - OriginalChecksum=d6ce109ac323f91d226065fc1a725fea (do not edit this line) */ --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected]
