first commit
This commit is contained in:
418
hrmsEjb/org/nfunk/jep/JavaCharStream.java
Normal file
418
hrmsEjb/org/nfunk/jep/JavaCharStream.java
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package org.nfunk.jep;
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import java.io.IOException;
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import java.io.InputStream;
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import java.io.InputStreamReader;
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import java.io.Reader;
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public class JavaCharStream {
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public static final boolean staticFlag = false;
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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 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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static final int hexval(char paramChar) throws IOException {
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switch (paramChar) {
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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 IOException();
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}
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protected void ExpandBuff(boolean paramBoolean) {
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char[] arrayOfChar = new char[this.bufsize + 2048];
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int[] arrayOfInt1 = new int[this.bufsize + 2048];
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int[] arrayOfInt2 = new int[this.bufsize + 2048];
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try {
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if (paramBoolean) {
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System.arraycopy(this.buffer, this.tokenBegin, arrayOfChar, 0, this.bufsize - this.tokenBegin);
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System.arraycopy(this.buffer, 0, arrayOfChar, this.bufsize - this.tokenBegin, this.bufpos);
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this.buffer = arrayOfChar;
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System.arraycopy(this.bufline, this.tokenBegin, arrayOfInt1, 0, this.bufsize - this.tokenBegin);
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System.arraycopy(this.bufline, 0, arrayOfInt1, this.bufsize - this.tokenBegin, this.bufpos);
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this.bufline = arrayOfInt1;
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System.arraycopy(this.bufcolumn, this.tokenBegin, arrayOfInt2, 0, this.bufsize - this.tokenBegin);
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System.arraycopy(this.bufcolumn, 0, arrayOfInt2, this.bufsize - this.tokenBegin, this.bufpos);
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this.bufcolumn = arrayOfInt2;
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this.bufpos += this.bufsize - this.tokenBegin;
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} else {
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System.arraycopy(this.buffer, this.tokenBegin, arrayOfChar, 0, this.bufsize - this.tokenBegin);
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this.buffer = arrayOfChar;
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System.arraycopy(this.bufline, this.tokenBegin, arrayOfInt1, 0, this.bufsize - this.tokenBegin);
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this.bufline = arrayOfInt1;
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System.arraycopy(this.bufcolumn, this.tokenBegin, arrayOfInt2, 0, this.bufsize - this.tokenBegin);
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this.bufcolumn = arrayOfInt2;
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this.bufpos -= this.tokenBegin;
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}
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} catch (Throwable throwable) {
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throw new Error(throwable.getMessage());
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}
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this.available = this.bufsize += 2048;
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this.tokenBegin = 0;
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}
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protected void FillBuff() throws IOException {
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if (this.maxNextCharInd == 4096)
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this.maxNextCharInd = this.nextCharInd = 0;
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try {
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int i;
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if ((i = this.inputStream.read(this.nextCharBuf, this.maxNextCharInd, 4096 - this.maxNextCharInd)) == -1) {
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this.inputStream.close();
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throw new IOException();
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}
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this.maxNextCharInd += i;
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return;
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} catch (IOException iOException) {
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if (this.bufpos != 0) {
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this.bufpos--;
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backup(0);
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} else {
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this.bufline[this.bufpos] = this.line;
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this.bufcolumn[this.bufpos] = this.column;
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}
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throw iOException;
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}
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}
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protected char ReadByte() throws IOException {
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if (++this.nextCharInd >= this.maxNextCharInd)
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FillBuff();
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return this.nextCharBuf[this.nextCharInd];
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}
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public char BeginToken() throws IOException {
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if (this.inBuf > 0) {
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this.inBuf--;
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if (++this.bufpos == this.bufsize)
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this.bufpos = 0;
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this.tokenBegin = this.bufpos;
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return this.buffer[this.bufpos];
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}
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this.tokenBegin = 0;
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this.bufpos = -1;
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return readChar();
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}
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protected void AdjustBuffSize() {
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if (this.available == this.bufsize) {
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if (this.tokenBegin > 2048) {
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this.bufpos = 0;
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this.available = this.tokenBegin;
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} else {
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ExpandBuff(false);
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}
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} else if (this.available > this.tokenBegin) {
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this.available = this.bufsize;
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} else if (this.tokenBegin - this.available < 2048) {
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ExpandBuff(true);
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} else {
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this.available = this.tokenBegin;
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}
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}
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protected void UpdateLineColumn(char paramChar) {
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this.column++;
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if (this.prevCharIsLF) {
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this.prevCharIsLF = false;
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this.line += this.column = 1;
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} else if (this.prevCharIsCR) {
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this.prevCharIsCR = false;
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if (paramChar == '\n') {
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this.prevCharIsLF = true;
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} else {
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this.line += this.column = 1;
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}
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}
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switch (paramChar) {
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case '\r':
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this.prevCharIsCR = true;
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break;
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case '\n':
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this.prevCharIsLF = true;
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break;
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case '\t':
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this.column--;
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this.column += 8 - (this.column & 0x7);
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break;
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}
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this.bufline[this.bufpos] = this.line;
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this.bufcolumn[this.bufpos] = this.column;
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}
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public char readChar() throws IOException {
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if (this.inBuf > 0) {
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this.inBuf--;
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if (++this.bufpos == this.bufsize)
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this.bufpos = 0;
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return this.buffer[this.bufpos];
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}
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if (++this.bufpos == this.available)
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AdjustBuffSize();
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char c = ReadByte();
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if ((c = ReadByte()) == '\\') {
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UpdateLineColumn(c);
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byte b = 1;
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while (true) {
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if (++this.bufpos == this.available)
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AdjustBuffSize();
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try {
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this.buffer[this.bufpos] = c = ReadByte();
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if ((c = ReadByte()) != '\\') {
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UpdateLineColumn(c);
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if (c == 'u' && (b & 0x1) == 1) {
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if (--this.bufpos < 0) {
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this.bufpos = this.bufsize - 1;
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break;
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}
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} else {
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backup(b);
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return '\\';
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}
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} else {
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UpdateLineColumn(c);
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b++;
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continue;
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}
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} catch (IOException iOException) {
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if (b > 1)
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backup(b);
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return '\\';
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}
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try {
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break;
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} catch (IOException iOException) {
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throw new Error("Invalid escape character at line " + this.line + " column " + this.column + ".");
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}
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}
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while ((c = ReadByte()) == 'u')
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this.column++;
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this.buffer[this.bufpos] = c = (char)(hexval(c) << 12 | hexval(ReadByte()) << 8 | hexval(ReadByte()) << 4 | hexval(ReadByte()));
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this.column += 4;
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if (b == 1)
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return c;
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backup(b - 1);
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return '\\';
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}
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UpdateLineColumn(c);
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return c;
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}
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public int getColumn() {
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return this.bufcolumn[this.bufpos];
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}
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public int getLine() {
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return this.bufline[this.bufpos];
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}
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public int getEndColumn() {
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return this.bufcolumn[this.bufpos];
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}
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public int getEndLine() {
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return this.bufline[this.bufpos];
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}
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public int getBeginColumn() {
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return this.bufcolumn[this.tokenBegin];
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}
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public int getBeginLine() {
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return this.bufline[this.tokenBegin];
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}
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public void backup(int paramInt) {
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this.inBuf += paramInt;
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if ((this.bufpos -= paramInt) < 0)
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this.bufpos += this.bufsize;
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}
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public JavaCharStream(Reader paramReader, int paramInt1, int paramInt2, int paramInt3) {
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this.inputStream = paramReader;
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this.line = paramInt1;
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this.column = paramInt2 - 1;
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this.available = this.bufsize = paramInt3;
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this.buffer = new char[paramInt3];
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this.bufline = new int[paramInt3];
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this.bufcolumn = new int[paramInt3];
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this.nextCharBuf = new char[4096];
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}
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public JavaCharStream(Reader paramReader, int paramInt1, int paramInt2) {
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this(paramReader, paramInt1, paramInt2, 4096);
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}
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public JavaCharStream(Reader paramReader) {
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this(paramReader, 1, 1, 4096);
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}
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public void ReInit(Reader paramReader, int paramInt1, int paramInt2, int paramInt3) {
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this.inputStream = paramReader;
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this.line = paramInt1;
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this.column = paramInt2 - 1;
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if (this.buffer == null || paramInt3 != this.buffer.length) {
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this.available = this.bufsize = paramInt3;
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this.buffer = new char[paramInt3];
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this.bufline = new int[paramInt3];
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this.bufcolumn = new int[paramInt3];
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this.nextCharBuf = new char[4096];
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}
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this.prevCharIsLF = this.prevCharIsCR = false;
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this.tokenBegin = this.inBuf = this.maxNextCharInd = 0;
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this.nextCharInd = this.bufpos = -1;
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}
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public void ReInit(Reader paramReader, int paramInt1, int paramInt2) {
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ReInit(paramReader, paramInt1, paramInt2, 4096);
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}
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public void ReInit(Reader paramReader) {
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ReInit(paramReader, 1, 1, 4096);
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}
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public JavaCharStream(InputStream paramInputStream, int paramInt1, int paramInt2, int paramInt3) {
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this(new InputStreamReader(paramInputStream), paramInt1, paramInt2, 4096);
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}
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public JavaCharStream(InputStream paramInputStream, int paramInt1, int paramInt2) {
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this(paramInputStream, paramInt1, paramInt2, 4096);
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}
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public JavaCharStream(InputStream paramInputStream) {
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this(paramInputStream, 1, 1, 4096);
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}
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public void ReInit(InputStream paramInputStream, int paramInt1, int paramInt2, int paramInt3) {
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ReInit(new InputStreamReader(paramInputStream), paramInt1, paramInt2, 4096);
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}
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public void ReInit(InputStream paramInputStream, int paramInt1, int paramInt2) {
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ReInit(paramInputStream, paramInt1, paramInt2, 4096);
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}
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public void ReInit(InputStream paramInputStream) {
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ReInit(paramInputStream, 1, 1, 4096);
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}
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public String GetImage() {
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return (this.bufpos >= this.tokenBegin) ? new String(this.buffer, this.tokenBegin, this.bufpos - this.tokenBegin + 1) : (new String(this.buffer, this.tokenBegin, this.bufsize - this.tokenBegin) + new String(this.buffer, 0, this.bufpos + 1));
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}
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public char[] GetSuffix(int paramInt) {
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char[] arrayOfChar = new char[paramInt];
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if (this.bufpos + 1 >= paramInt) {
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System.arraycopy(this.buffer, this.bufpos - paramInt + 1, arrayOfChar, 0, paramInt);
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} else {
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System.arraycopy(this.buffer, this.bufsize - paramInt - this.bufpos - 1, arrayOfChar, 0, paramInt - this.bufpos - 1);
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System.arraycopy(this.buffer, 0, arrayOfChar, paramInt - this.bufpos - 1, this.bufpos + 1);
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}
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return arrayOfChar;
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}
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public void Done() {
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this.nextCharBuf = null;
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this.buffer = null;
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this.bufline = null;
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this.bufcolumn = null;
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}
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public void adjustBeginLineColumn(int paramInt1, int paramInt2) {
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int j;
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int i = this.tokenBegin;
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if (this.bufpos >= this.tokenBegin) {
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j = this.bufpos - this.tokenBegin + this.inBuf + 1;
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} else {
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j = this.bufsize - this.tokenBegin + this.bufpos + 1 + this.inBuf;
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}
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byte b = 0;
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int k = 0;
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int m = 0;
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int n = 0;
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int i1 = 0;
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while (b < j && this.bufline[k = i % this.bufsize] == this.bufline[m = ++i % this.bufsize]) {
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this.bufline[k] = paramInt1;
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n = i1 + this.bufcolumn[m] - this.bufcolumn[k];
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this.bufcolumn[k] = paramInt2 + i1;
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i1 = n;
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b++;
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}
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if (b < j) {
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this.bufline[k] = paramInt1++;
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this.bufcolumn[k] = paramInt2 + i1;
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while (b++ < j) {
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if (this.bufline[k = i % this.bufsize] != this.bufline[++i % this.bufsize]) {
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this.bufline[k] = paramInt1++;
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continue;
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}
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this.bufline[k] = paramInt1;
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}
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}
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this.line = this.bufline[k];
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this.column = this.bufcolumn[k];
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}
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}
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Reference in New Issue
Block a user