55985
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/* Generated By:JavaCC: Do not edit this line. JavaCharStream.java Version 5.0 */
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/* JavaCCOptions:STATIC=false,SUPPORT_CLASS_VISIBILITY_PUBLIC=true */
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package com.oracle.jmx.remote.rest.json.parser;
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/**
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* An implementation of interface CharStream, where the stream is assumed to
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* contain only ASCII characters (with java-like unicode escape processing).
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*/
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public
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class JavaCharStream
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{
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/** Whether parser is static. */
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public static final boolean staticFlag = false;
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static final int hexval(char c) throws java.io.IOException {
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switch(c)
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{
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case '0' :
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return 0;
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case '1' :
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return 1;
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case '2' :
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return 2;
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case '3' :
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return 3;
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case '4' :
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return 4;
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case '5' :
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return 5;
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case '6' :
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return 6;
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case '7' :
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return 7;
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case '8' :
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return 8;
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case '9' :
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return 9;
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case 'a' :
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case 'A' :
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return 10;
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case 'b' :
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case 'B' :
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return 11;
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case 'c' :
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case 'C' :
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return 12;
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case 'd' :
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case 'D' :
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return 13;
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case 'e' :
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case 'E' :
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return 14;
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case 'f' :
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case 'F' :
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return 15;
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}
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throw new java.io.IOException(); // Should never come here
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}
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/** Position in buffer. */
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public int bufpos = -1;
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int bufsize;
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int available;
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int tokenBegin;
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protected int bufline[];
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protected int bufcolumn[];
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protected int column = 0;
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protected int line = 1;
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protected boolean prevCharIsCR = false;
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protected boolean prevCharIsLF = false;
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protected java.io.Reader inputStream;
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protected char[] nextCharBuf;
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protected char[] buffer;
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protected int maxNextCharInd = 0;
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protected int nextCharInd = -1;
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protected int inBuf = 0;
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protected int tabSize = 8;
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protected void setTabSize(int i) { tabSize = i; }
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protected int getTabSize(int i) { return tabSize; }
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protected void ExpandBuff(boolean wrapAround)
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{
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char[] newbuffer = new char[bufsize + 2048];
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int newbufline[] = new int[bufsize + 2048];
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int newbufcolumn[] = new int[bufsize + 2048];
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try
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{
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if (wrapAround)
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{
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System.arraycopy(buffer, tokenBegin, newbuffer, 0, bufsize - tokenBegin);
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System.arraycopy(buffer, 0, newbuffer, bufsize - tokenBegin, bufpos);
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buffer = newbuffer;
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System.arraycopy(bufline, tokenBegin, newbufline, 0, bufsize - tokenBegin);
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System.arraycopy(bufline, 0, newbufline, bufsize - tokenBegin, bufpos);
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bufline = newbufline;
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System.arraycopy(bufcolumn, tokenBegin, newbufcolumn, 0, bufsize - tokenBegin);
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System.arraycopy(bufcolumn, 0, newbufcolumn, bufsize - tokenBegin, bufpos);
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bufcolumn = newbufcolumn;
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bufpos += (bufsize - tokenBegin);
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}
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else
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{
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System.arraycopy(buffer, tokenBegin, newbuffer, 0, bufsize - tokenBegin);
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buffer = newbuffer;
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System.arraycopy(bufline, tokenBegin, newbufline, 0, bufsize - tokenBegin);
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bufline = newbufline;
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System.arraycopy(bufcolumn, tokenBegin, newbufcolumn, 0, bufsize - tokenBegin);
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bufcolumn = newbufcolumn;
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bufpos -= tokenBegin;
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}
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}
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catch (Throwable t)
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{
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throw new Error(t.getMessage());
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}
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available = (bufsize += 2048);
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tokenBegin = 0;
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}
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protected void FillBuff() throws java.io.IOException
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{
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int i;
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if (maxNextCharInd == 4096)
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maxNextCharInd = nextCharInd = 0;
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try {
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if ((i = inputStream.read(nextCharBuf, maxNextCharInd,
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4096 - maxNextCharInd)) == -1)
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{
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inputStream.close();
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throw new java.io.IOException();
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}
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else
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maxNextCharInd += i;
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return;
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}
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catch(java.io.IOException e) {
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if (bufpos != 0)
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{
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--bufpos;
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backup(0);
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}
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else
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{
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bufline[bufpos] = line;
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bufcolumn[bufpos] = column;
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}
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throw e;
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}
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}
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protected char ReadByte() throws java.io.IOException
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{
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if (++nextCharInd >= maxNextCharInd)
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FillBuff();
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return nextCharBuf[nextCharInd];
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}
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/** @return starting character for token. */
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public char BeginToken() throws java.io.IOException
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{
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if (inBuf > 0)
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{
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--inBuf;
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if (++bufpos == bufsize)
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bufpos = 0;
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tokenBegin = bufpos;
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return buffer[bufpos];
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}
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tokenBegin = 0;
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bufpos = -1;
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return readChar();
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}
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protected void AdjustBuffSize()
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{
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if (available == bufsize)
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{
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if (tokenBegin > 2048)
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{
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bufpos = 0;
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available = tokenBegin;
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}
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else
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ExpandBuff(false);
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}
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else if (available > tokenBegin)
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available = bufsize;
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else if ((tokenBegin - available) < 2048)
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ExpandBuff(true);
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else
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available = tokenBegin;
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}
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protected void UpdateLineColumn(char c)
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{
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column++;
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if (prevCharIsLF)
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{
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prevCharIsLF = false;
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line += (column = 1);
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}
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else if (prevCharIsCR)
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{
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prevCharIsCR = false;
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if (c == '\n')
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{
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prevCharIsLF = true;
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}
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else
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line += (column = 1);
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}
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switch (c)
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{
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case '\r' :
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prevCharIsCR = true;
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break;
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case '\n' :
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prevCharIsLF = true;
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break;
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case '\t' :
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column--;
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column += (tabSize - (column % tabSize));
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break;
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default :
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break;
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}
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bufline[bufpos] = line;
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bufcolumn[bufpos] = column;
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}
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/** Read a character. */
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public char readChar() throws java.io.IOException
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{
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if (inBuf > 0)
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{
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--inBuf;
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if (++bufpos == bufsize)
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bufpos = 0;
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return buffer[bufpos];
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}
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char c;
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if (++bufpos == available)
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AdjustBuffSize();
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if ((buffer[bufpos] = c = ReadByte()) == '\\')
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{
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UpdateLineColumn(c);
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int backSlashCnt = 1;
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for (;;) // Read all the backslashes
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{
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if (++bufpos == available)
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AdjustBuffSize();
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try
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{
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if ((buffer[bufpos] = c = ReadByte()) != '\\')
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{
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UpdateLineColumn(c);
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// found a non-backslash char.
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if ((c == 'u') && ((backSlashCnt & 1) == 1))
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{
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if (--bufpos < 0)
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bufpos = bufsize - 1;
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break;
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}
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backup(backSlashCnt);
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return '\\';
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}
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}
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catch(java.io.IOException e)
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{
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// We are returning one backslash so we should only backup (count-1)
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if (backSlashCnt > 1)
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backup(backSlashCnt-1);
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return '\\';
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}
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UpdateLineColumn(c);
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backSlashCnt++;
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}
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// Here, we have seen an odd number of backslash's followed by a 'u'
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try
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{
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while ((c = ReadByte()) == 'u')
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++column;
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buffer[bufpos] = c = (char)(hexval(c) << 12 |
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hexval(ReadByte()) << 8 |
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hexval(ReadByte()) << 4 |
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hexval(ReadByte()));
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column += 4;
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}
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catch(java.io.IOException e)
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{
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throw new Error("Invalid escape character at line " + line +
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" column " + column + ".");
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}
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if (backSlashCnt == 1)
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return c;
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else
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{
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backup(backSlashCnt - 1);
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return '\\';
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}
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}
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else
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{
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UpdateLineColumn(c);
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return c;
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}
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}
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@Deprecated
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/**
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* @deprecated
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* @see #getEndColumn
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*/
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public int getColumn() {
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return bufcolumn[bufpos];
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}
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@Deprecated
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/**
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* @deprecated
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* @see #getEndLine
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*/
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public int getLine() {
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return bufline[bufpos];
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}
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/** Get end column. */
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public int getEndColumn() {
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return bufcolumn[bufpos];
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}
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/** Get end line. */
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public int getEndLine() {
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return bufline[bufpos];
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}
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/** @return column of token start */
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public int getBeginColumn() {
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return bufcolumn[tokenBegin];
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}
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/** @return line number of token start */
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public int getBeginLine() {
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return bufline[tokenBegin];
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}
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/** Retreat. */
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public void backup(int amount) {
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inBuf += amount;
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if ((bufpos -= amount) < 0)
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bufpos += bufsize;
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}
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/** Constructor. */
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public JavaCharStream(java.io.Reader dstream,
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int startline, int startcolumn, int buffersize)
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{
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inputStream = dstream;
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line = startline;
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column = startcolumn - 1;
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available = bufsize = buffersize;
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buffer = new char[buffersize];
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bufline = new int[buffersize];
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bufcolumn = new int[buffersize];
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nextCharBuf = new char[4096];
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}
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/** Constructor. */
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public JavaCharStream(java.io.Reader dstream,
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int startline, int startcolumn)
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{
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this(dstream, startline, startcolumn, 4096);
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}
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/** Constructor. */
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public JavaCharStream(java.io.Reader dstream)
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{
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this(dstream, 1, 1, 4096);
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}
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/** Reinitialise. */
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public void ReInit(java.io.Reader dstream,
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int startline, int startcolumn, int buffersize)
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{
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inputStream = dstream;
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line = startline;
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column = startcolumn - 1;
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if (buffer == null || buffersize != buffer.length)
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{
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available = bufsize = buffersize;
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buffer = new char[buffersize];
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bufline = new int[buffersize];
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bufcolumn = new int[buffersize];
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nextCharBuf = new char[4096];
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}
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prevCharIsLF = prevCharIsCR = false;
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tokenBegin = inBuf = maxNextCharInd = 0;
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nextCharInd = bufpos = -1;
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}
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443 |
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444 |
/** Reinitialise. */
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445 |
public void ReInit(java.io.Reader dstream,
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int startline, int startcolumn)
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{
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ReInit(dstream, startline, startcolumn, 4096);
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}
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/** Reinitialise. */
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public void ReInit(java.io.Reader dstream)
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{
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ReInit(dstream, 1, 1, 4096);
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}
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456 |
/** Constructor. */
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457 |
public JavaCharStream(java.io.InputStream dstream, String encoding, int startline,
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int startcolumn, int buffersize) throws java.io.UnsupportedEncodingException
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459 |
{
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460 |
this(encoding == null ? new java.io.InputStreamReader(dstream) : new java.io.InputStreamReader(dstream, encoding), startline, startcolumn, buffersize);
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461 |
}
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463 |
/** Constructor. */
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464 |
public JavaCharStream(java.io.InputStream dstream, int startline,
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465 |
int startcolumn, int buffersize)
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466 |
{
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467 |
this(new java.io.InputStreamReader(dstream), startline, startcolumn, 4096);
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}
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469 |
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470 |
/** Constructor. */
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471 |
public JavaCharStream(java.io.InputStream dstream, String encoding, int startline,
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472 |
int startcolumn) throws java.io.UnsupportedEncodingException
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473 |
{
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474 |
this(dstream, encoding, startline, startcolumn, 4096);
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475 |
}
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|
476 |
|
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477 |
/** Constructor. */
|
|
478 |
public JavaCharStream(java.io.InputStream dstream, int startline,
|
|
479 |
int startcolumn)
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|
480 |
{
|
|
481 |
this(dstream, startline, startcolumn, 4096);
|
|
482 |
}
|
|
483 |
|
|
484 |
/** Constructor. */
|
|
485 |
public JavaCharStream(java.io.InputStream dstream, String encoding) throws java.io.UnsupportedEncodingException
|
|
486 |
{
|
|
487 |
this(dstream, encoding, 1, 1, 4096);
|
|
488 |
}
|
|
489 |
|
|
490 |
/** Constructor. */
|
|
491 |
public JavaCharStream(java.io.InputStream dstream)
|
|
492 |
{
|
|
493 |
this(dstream, 1, 1, 4096);
|
|
494 |
}
|
|
495 |
|
|
496 |
/** Reinitialise. */
|
|
497 |
public void ReInit(java.io.InputStream dstream, String encoding, int startline,
|
|
498 |
int startcolumn, int buffersize) throws java.io.UnsupportedEncodingException
|
|
499 |
{
|
|
500 |
ReInit(encoding == null ? new java.io.InputStreamReader(dstream) : new java.io.InputStreamReader(dstream, encoding), startline, startcolumn, buffersize);
|
|
501 |
}
|
|
502 |
|
|
503 |
/** Reinitialise. */
|
|
504 |
public void ReInit(java.io.InputStream dstream, int startline,
|
|
505 |
int startcolumn, int buffersize)
|
|
506 |
{
|
|
507 |
ReInit(new java.io.InputStreamReader(dstream), startline, startcolumn, buffersize);
|
|
508 |
}
|
|
509 |
/** Reinitialise. */
|
|
510 |
public void ReInit(java.io.InputStream dstream, String encoding, int startline,
|
|
511 |
int startcolumn) throws java.io.UnsupportedEncodingException
|
|
512 |
{
|
|
513 |
ReInit(dstream, encoding, startline, startcolumn, 4096);
|
|
514 |
}
|
|
515 |
/** Reinitialise. */
|
|
516 |
public void ReInit(java.io.InputStream dstream, int startline,
|
|
517 |
int startcolumn)
|
|
518 |
{
|
|
519 |
ReInit(dstream, startline, startcolumn, 4096);
|
|
520 |
}
|
|
521 |
/** Reinitialise. */
|
|
522 |
public void ReInit(java.io.InputStream dstream, String encoding) throws java.io.UnsupportedEncodingException
|
|
523 |
{
|
|
524 |
ReInit(dstream, encoding, 1, 1, 4096);
|
|
525 |
}
|
|
526 |
|
|
527 |
/** Reinitialise. */
|
|
528 |
public void ReInit(java.io.InputStream dstream)
|
|
529 |
{
|
|
530 |
ReInit(dstream, 1, 1, 4096);
|
|
531 |
}
|
|
532 |
|
|
533 |
/** @return token image as String */
|
|
534 |
public String GetImage()
|
|
535 |
{
|
|
536 |
if (bufpos >= tokenBegin)
|
|
537 |
return new String(buffer, tokenBegin, bufpos - tokenBegin + 1);
|
|
538 |
else
|
|
539 |
return new String(buffer, tokenBegin, bufsize - tokenBegin) +
|
|
540 |
new String(buffer, 0, bufpos + 1);
|
|
541 |
}
|
|
542 |
|
|
543 |
/** @return suffix */
|
|
544 |
public char[] GetSuffix(int len)
|
|
545 |
{
|
|
546 |
char[] ret = new char[len];
|
|
547 |
|
|
548 |
if ((bufpos + 1) >= len)
|
|
549 |
System.arraycopy(buffer, bufpos - len + 1, ret, 0, len);
|
|
550 |
else
|
|
551 |
{
|
|
552 |
System.arraycopy(buffer, bufsize - (len - bufpos - 1), ret, 0,
|
|
553 |
len - bufpos - 1);
|
|
554 |
System.arraycopy(buffer, 0, ret, len - bufpos - 1, bufpos + 1);
|
|
555 |
}
|
|
556 |
|
|
557 |
return ret;
|
|
558 |
}
|
|
559 |
|
|
560 |
/** Set buffers back to null when finished. */
|
|
561 |
public void Done()
|
|
562 |
{
|
|
563 |
nextCharBuf = null;
|
|
564 |
buffer = null;
|
|
565 |
bufline = null;
|
|
566 |
bufcolumn = null;
|
|
567 |
}
|
|
568 |
|
|
569 |
/**
|
|
570 |
* Method to adjust line and column numbers for the start of a token.
|
|
571 |
*/
|
|
572 |
public void adjustBeginLineColumn(int newLine, int newCol)
|
|
573 |
{
|
|
574 |
int start = tokenBegin;
|
|
575 |
int len;
|
|
576 |
|
|
577 |
if (bufpos >= tokenBegin)
|
|
578 |
{
|
|
579 |
len = bufpos - tokenBegin + inBuf + 1;
|
|
580 |
}
|
|
581 |
else
|
|
582 |
{
|
|
583 |
len = bufsize - tokenBegin + bufpos + 1 + inBuf;
|
|
584 |
}
|
|
585 |
|
|
586 |
int i = 0, j = 0, k = 0;
|
|
587 |
int nextColDiff = 0, columnDiff = 0;
|
|
588 |
|
|
589 |
while (i < len && bufline[j = start % bufsize] == bufline[k = ++start % bufsize])
|
|
590 |
{
|
|
591 |
bufline[j] = newLine;
|
|
592 |
nextColDiff = columnDiff + bufcolumn[k] - bufcolumn[j];
|
|
593 |
bufcolumn[j] = newCol + columnDiff;
|
|
594 |
columnDiff = nextColDiff;
|
|
595 |
i++;
|
|
596 |
}
|
|
597 |
|
|
598 |
if (i < len)
|
|
599 |
{
|
|
600 |
bufline[j] = newLine++;
|
|
601 |
bufcolumn[j] = newCol + columnDiff;
|
|
602 |
|
|
603 |
while (i++ < len)
|
|
604 |
{
|
|
605 |
if (bufline[j = start % bufsize] != bufline[++start % bufsize])
|
|
606 |
bufline[j] = newLine++;
|
|
607 |
else
|
|
608 |
bufline[j] = newLine;
|
|
609 |
}
|
|
610 |
}
|
|
611 |
|
|
612 |
line = bufline[j];
|
|
613 |
column = bufcolumn[j];
|
|
614 |
}
|
|
615 |
|
|
616 |
}
|
|
617 |
/* JavaCC - OriginalChecksum=3b79d8fd3ca02005c805e406bf89cd35 (do not edit this line) */
|