Text to Postscript
/*
* Copyright (c) Ian F. Darwin, http://www.darwinsys.com/, 1996-2002.
* All rights reserved. Software written by Ian F. Darwin and others.
* $Id: LICENSE,v 1.8 2004/02/09 03:33:38 ian Exp $
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS''
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
* Java, the Duke mascot, and all variants of Sun's Java "steaming coffee
* cup" logo are trademarks of Sun Microsystems. Sun's, and James Gosling's,
* pioneering role in inventing and promulgating (and standardizing) the Java
* language and environment is gratefully acknowledged.
*
* The pioneering role of Dennis Ritchie and Bjarne Stroustrup, of AT&T, for
* inventing predecessor languages C and C++ is also gratefully acknowledged.
*/
import java.io.*;
/** Text to PS */
public class PSFormatter {
/** The current input source */
protected BufferedReader br;
/** The current page number */
protected int pageNum;
/** The current X and Y on the page */
protected int curX, curY;
/** The current line number on page */
protected int lineNum;
/** The current tab setting */
protected int tabPos = 0;
public static final int INCH = 72; // PS constant: 72 pts/inch
// Page parameters
/** The left margin indent */
protected int leftMargin = 50;
/** The top of page indent */
protected int topMargin = 750;
/** The bottom of page indent */
protected int botMargin = 50;
// FORMATTING PARAMETERS
protected int points = 12;
protected int leading = 14;
public static void main(String[] av) throws IOException {
if (av.length == 0)
new PSFormatter(
new InputStreamReader(System.in)).process();
else for (int i = 0; i < av.length; i++) {
new PSFormatter(av[i]).process();
}
}
public PSFormatter(String fileName) throws IOException {
br = new BufferedReader(new FileReader(fileName));
}
public PSFormatter(Reader in) throws IOException {
if (in instanceof BufferedReader)
br = (BufferedReader)in;
else
br = new BufferedReader(in);
}
/** Main processing of the current input source. */
protected void process() throws IOException {
String line;
prologue(); // emit PostScript prologue, once.
startPage(); // emit top-of-page (ending previous)
while ((line = br.readLine()) != null) {
if (line.startsWith("\f") || line.trim().equals(".bp")) {
startPage();
continue;
}
doLine(line);
}
// finish last page, if not already done.
if (lineNum != 0)
println("showpage");
}
/** Handle start of page details. */
protected void startPage() {
if (pageNum++ > 0)
println("showpage");
lineNum = 0;
moveTo(leftMargin, topMargin);
}
/** Process one line from the current input */
protected void doLine(String line) {
tabPos = 0;
// count leading (not imbedded) tabs.
for (int i=0; i<line.length(); i++) {
if (line.charAt(i)=='\t')
tabPos++;
else
break;
}
String l = line.trim(); // removes spaces AND tabs
if (l.length() == 0) {
++lineNum;
return;
}
moveTo(leftMargin + (tabPos * INCH),
topMargin-(lineNum++ * leading));
println('(' + toPSString(l)+ ") show");
// If we just hit the bottom, start a new page
if (curY <= botMargin)
startPage();
}
/** Overly-simplistic conversion to PS, e.g., breaks on "foo\)bar" */
protected String toPSString(String o) {
StringBuffer sb = new StringBuffer();
for (int i=0; i<o.length(); i++) {
char c = o.charAt(i);
switch(c) {
case '(': sb.append("\\("); break;
case ')': sb.append("\\)"); break;
default: sb.append(c); break;
}
}
return sb.toString();
}
protected void println(String s) {
System.out.println(s);
}
protected void moveTo(int x, int y) {
curX = x;
curY = y;
println(x + " " + y + " " + "moveto");
}
void prologue() {
println("%!PS-Adobe");
println("/Courier findfont " + points + " scalefont setfont ");
}
}
Related examples in the same category
