plantuml/src/net/sourceforge/plantuml/preproc/ReadLineReader.java

118 lines
3.5 KiB
Java

/* ========================================================================
* PlantUML : a free UML diagram generator
* ========================================================================
*
* (C) Copyright 2009-2017, Arnaud Roques
*
* Project Info: http://plantuml.com
*
* If you like this project or if you find it useful, you can support us at:
*
* http://plantuml.com/patreon (only 1$ per month!)
* http://plantuml.com/paypal
*
* This file is part of PlantUML.
*
* PlantUML is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* PlantUML distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
* License for more details.
*
* You should have received a copy of the GNU General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
* USA.
*
*
* Original Author: Arnaud Roques
*
*
*/
package net.sourceforge.plantuml.preproc;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.Reader;
import net.sourceforge.plantuml.CharSequence2;
import net.sourceforge.plantuml.CharSequence2Impl;
import net.sourceforge.plantuml.LineLocation;
import net.sourceforge.plantuml.LineLocationImpl;
import net.sourceforge.plantuml.Log;
public class ReadLineReader extends ReadLineInstrumented implements ReadLine {
// private static final int LIMIT = 850;
private final BufferedReader br;
private LineLocationImpl location;
private final String description;
private ReadLineReader(Reader reader, String description, LineLocation parent) {
if (description == null) {
description = "?";
}
this.br = new BufferedReader(reader);
this.location = new LineLocationImpl(description, parent);
this.description = description;
Log.info("Reading from " + description);
}
@Override
public String toString() {
return super.toString() + " " + description;
}
private ReadLineReader(Reader reader, String desc) {
this(reader, desc, null);
}
public static ReadLine create(Reader reader, String description) {
return new ReadLineReader(reader, description, null);
}
public static ReadLine create(Reader reader, String description, LineLocation parent) {
return new ReadLineReader(reader, description, parent);
}
@Override
CharSequence2 readLineInst() throws IOException {
String s = br.readLine();
location = location.oneLineRead();
if (s == null) {
return null;
}
// if (s.length() > LIMIT) {
// Log.debug("Line truncated from " + s.length() + " to " + LIMIT);
// s = s.substring(0, LIMIT);
// }
if (s.startsWith("\uFEFF")) {
s = s.substring(1);
}
s = s.replace('\u2013', '-');
// s = BackSlash.convertHiddenNewLine(s);
// s = s.replace('\u00A0', ' ');
// s = s.replace('\u201c', '\"');
// s = s.replace('\u201d', '\"');
// s = s.replace('\u00ab', '\"');
// s = s.replace('\u00bb', '\"');
// s = s.replace('\u2018', '\'');
// s = s.replace('\u2019', '\'');
// for (int i = 0; i < s.length(); i++) {
// char c = s.charAt(i);
// System.err.println("X " + Integer.toHexString((int) c) + " " + c);
// }
return new CharSequence2Impl(s, location);
}
@Override
void closeInst() throws IOException {
br.close();
}
}