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Posted to dev@commons.apache.org by di...@apache.org on 2006/09/26 14:25:38 UTC
svn commit: r450022 -
/jakarta/commons/proper/jexl/trunk/src/java/org/apache/commons/jexl/parser/SimpleCharStream.java
Author: dion
Date: Tue Sep 26 05:25:38 2006
New Revision: 450022
URL: http://svn.apache.org/viewvc?view=rev&rev=450022
Log:
For JEXL-22. javacc 4.0 generated file
Modified:
jakarta/commons/proper/jexl/trunk/src/java/org/apache/commons/jexl/parser/SimpleCharStream.java
Modified: jakarta/commons/proper/jexl/trunk/src/java/org/apache/commons/jexl/parser/SimpleCharStream.java
URL: http://svn.apache.org/viewvc/jakarta/commons/proper/jexl/trunk/src/java/org/apache/commons/jexl/parser/SimpleCharStream.java?view=diff&rev=450022&r1=450021&r2=450022
==============================================================================
--- jakarta/commons/proper/jexl/trunk/src/java/org/apache/commons/jexl/parser/SimpleCharStream.java (original)
+++ jakarta/commons/proper/jexl/trunk/src/java/org/apache/commons/jexl/parser/SimpleCharStream.java Tue Sep 26 05:25:38 2006
@@ -13,7 +13,7 @@
* See the License for the specific language governing permissions and
* limitations under the License.
*/
-/* Generated By:JavaCC: Do not edit this line. SimpleCharStream.java Version 2.1 */
+/* Generated By:JavaCC: Do not edit this line. SimpleCharStream.java Version 4.0 */
package org.apache.commons.jexl.parser;
/**
@@ -21,344 +21,434 @@
* contain only ASCII characters (without unicode processing).
*/
-public final class SimpleCharStream {
- public static final boolean staticFlag = false;
-
- int bufsize;
-
- int available;
-
- int tokenBegin;
-
- public int bufpos = -1;
-
- private int bufline[];
-
- private int bufcolumn[];
-
- private int column = 0;
-
- private int line = 1;
-
- private boolean prevCharIsCR = false;
-
- private boolean prevCharIsLF = false;
-
- private java.io.Reader inputStream;
-
- private char[] buffer;
-
- private int maxNextCharInd = 0;
-
- private int inBuf = 0;
-
- private final 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;
- }
-
- private final 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 final char BeginToken() throws java.io.IOException {
- tokenBegin = -1;
- char c = readChar();
- tokenBegin = bufpos;
-
- return c;
- }
-
- private final 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 final 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
- * @see #getEndColumn
- */
-
- public final int getColumn() {
- return bufcolumn[bufpos];
- }
-
- /**
- * @deprecated
- * @see #getEndLine
- */
-
- public final int getLine() {
- return bufline[bufpos];
- }
-
- public final int getEndColumn() {
- return bufcolumn[bufpos];
- }
-
- public final int getEndLine() {
- return bufline[bufpos];
- }
-
- public final int getBeginColumn() {
- return bufcolumn[tokenBegin];
- }
-
- public final int getBeginLine() {
- return bufline[tokenBegin];
- }
-
- public final 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 final String GetImage() {
- if (bufpos >= tokenBegin)
- return new String(buffer, tokenBegin, bufpos - tokenBegin + 1);
- return new String(buffer, tokenBegin, bufsize - tokenBegin) + new String(buffer, 0, bufpos + 1);
- }
-
- public final 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.
- */
- 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];
- }
+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 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;
+ }
+ 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 += (tabSize - (column % tabSize));
+ 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);
+ }
+
+ /**
+ * @deprecated
+ * @see #getEndColumn
+ */
+
+ public int getColumn() {
+ return bufcolumn[bufpos];
+ }
+
+ /**
+ * @deprecated
+ * @see #getEndLine
+ */
+
+ 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, 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);
+ }
+ 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.
+ */
+ 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];
+ }
}
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