From 13d6dc3a6a5e8bd3c17997351a0e6f087eb301a2 Mon Sep 17 00:00:00 2001 From: tknall Date: Tue, 25 Nov 2008 12:04:30 +0000 Subject: Removing itext from source. git-svn-id: https://joinup.ec.europa.eu/svn/pdf-as/trunk@302 7b5415b0-85f9-ee4d-85bd-d5d0c3b42d1c --- .../text/pdf/codec/postscript/JavaCharStream.java | 547 --------------------- 1 file changed, 547 deletions(-) delete mode 100644 src/main/java/com/lowagie/text/pdf/codec/postscript/JavaCharStream.java (limited to 'src/main/java/com/lowagie/text/pdf/codec/postscript/JavaCharStream.java') diff --git a/src/main/java/com/lowagie/text/pdf/codec/postscript/JavaCharStream.java b/src/main/java/com/lowagie/text/pdf/codec/postscript/JavaCharStream.java deleted file mode 100644 index da52458..0000000 --- a/src/main/java/com/lowagie/text/pdf/codec/postscript/JavaCharStream.java +++ /dev/null @@ -1,547 +0,0 @@ -/* Generated By:JavaCC: Do not edit this line. JavaCharStream.java Version 2.1 */ -package com.lowagie.text.pdf.codec.postscript; - -/** - * An implementation of interface CharStream, where the stream is assumed to - * contain only ASCII characters (with java-like unicode escape processing). - */ - -public final class JavaCharStream -{ - public static final boolean staticFlag = false; - static final int hexval(char c) throws java.io.IOException { - switch(c) - { - case '0' : - return 0; - case '1' : - return 1; - case '2' : - return 2; - case '3' : - return 3; - case '4' : - return 4; - case '5' : - return 5; - case '6' : - return 6; - case '7' : - return 7; - case '8' : - return 8; - case '9' : - return 9; - - case 'a' : - case 'A' : - return 10; - case 'b' : - case 'B' : - return 11; - case 'c' : - case 'C' : - return 12; - case 'd' : - case 'D' : - return 13; - case 'e' : - case 'E' : - return 14; - case 'f' : - case 'F' : - return 15; - } - - throw new java.io.IOException(); // Should never come here - } - - public int bufpos = -1; - int bufsize; - int available; - int tokenBegin; - 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[] nextCharBuf; - private char[] buffer; - private int maxNextCharInd = 0; - private int nextCharInd = -1; - 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; - - 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; - - bufpos -= tokenBegin; - } - } - catch (Throwable t) - { - throw new Error(t.getMessage()); - } - - available = (bufsize += 2048); - tokenBegin = 0; - } - - private final void FillBuff() throws java.io.IOException - { - int i; - if (maxNextCharInd == 4096) - maxNextCharInd = nextCharInd = 0; - - try { - if ((i = inputStream.read(nextCharBuf, maxNextCharInd, - 4096 - maxNextCharInd)) == -1) - { - inputStream.close(); - throw new java.io.IOException(); - } - else - maxNextCharInd += i; - return; - } - catch(java.io.IOException e) { - if (bufpos != 0) - { - --bufpos; - backup(0); - } - else - { - bufline[bufpos] = line; - bufcolumn[bufpos] = column; - } - throw e; - } - } - - private final char ReadByte() throws java.io.IOException - { - if (++nextCharInd >= maxNextCharInd) - FillBuff(); - - return nextCharBuf[nextCharInd]; - } - - public final char BeginToken() throws java.io.IOException - { - if (inBuf > 0) - { - --inBuf; - - if (++bufpos == bufsize) - bufpos = 0; - - tokenBegin = bufpos; - return buffer[bufpos]; - } - - tokenBegin = 0; - bufpos = -1; - - return readChar(); - } - - private final void AdjustBuffSize() - { - if (available == bufsize) - { - if (tokenBegin > 2048) - { - bufpos = 0; - available = tokenBegin; - } - else - ExpandBuff(false); - } - else if (available > tokenBegin) - available = bufsize; - else if ((tokenBegin - available) < 2048) - ExpandBuff(true); - else - available = tokenBegin; - } - - 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]; - } - - char c; - - if (++bufpos == available) - AdjustBuffSize(); - - if ((buffer[bufpos] = c = ReadByte()) == '\\') - { - UpdateLineColumn(c); - - int backSlashCnt = 1; - - for (;;) // Read all the backslashes - { - if (++bufpos == available) - AdjustBuffSize(); - - try - { - if ((buffer[bufpos] = c = ReadByte()) != '\\') - { - UpdateLineColumn(c); - // found a non-backslash char. - if ((c == 'u') && ((backSlashCnt & 1) == 1)) - { - if (--bufpos < 0) - bufpos = bufsize - 1; - - break; - } - - backup(backSlashCnt); - return '\\'; - } - } - catch(java.io.IOException e) - { - if (backSlashCnt > 1) - backup(backSlashCnt); - - return '\\'; - } - - UpdateLineColumn(c); - backSlashCnt++; - } - - // Here, we have seen an odd number of backslash's followed by a 'u' - try - { - while ((c = ReadByte()) == 'u') - ++column; - - buffer[bufpos] = c = (char)(hexval(c) << 12 | - hexval(ReadByte()) << 8 | - hexval(ReadByte()) << 4 | - hexval(ReadByte())); - - column += 4; - } - catch(java.io.IOException e) - { - throw new Error("Invalid escape character at line " + line + - " column " + column + "."); - } - - if (backSlashCnt == 1) - return c; - else - { - backup(backSlashCnt - 1); - return '\\'; - } - } - else - { - 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 JavaCharStream(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]; - nextCharBuf = new char[4096]; - } - - public JavaCharStream(java.io.Reader dstream, - int startline, int startcolumn) - { - this(dstream, startline, startcolumn, 4096); - } - - public JavaCharStream(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]; - nextCharBuf = new char[4096]; - } - prevCharIsLF = prevCharIsCR = false; - tokenBegin = inBuf = maxNextCharInd = 0; - nextCharInd = 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 JavaCharStream(java.io.InputStream dstream, int startline, - int startcolumn, int buffersize) - { - this(new java.io.InputStreamReader(dstream), startline, startcolumn, 4096); - } - - public JavaCharStream(java.io.InputStream dstream, int startline, - int startcolumn) - { - this(dstream, startline, startcolumn, 4096); - } - - public JavaCharStream(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, int startline, - int startcolumn) - { - ReInit(dstream, startline, startcolumn, 4096); - } - public void ReInit(java.io.InputStream dstream) - { - ReInit(dstream, 1, 1, 4096); - } - - public final 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 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() - { - nextCharBuf = null; - 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]; - } - -} -- cgit v1.2.3