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/* ========================================================================
* PlantUML : a free UML diagram generator
* ========================================================================
*
* (C) Copyright 2009-2020, 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
* Modified by: Nicolas Jouanin
*
*
*/
package net.sourceforge.plantuml.preproc2;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.net.URL;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
import net.sourceforge.plantuml.Log;
import net.sourceforge.plantuml.StringLocated;
import net.sourceforge.plantuml.StringUtils;
import net.sourceforge.plantuml.preproc.ReadLine;
import net.sourceforge.plantuml.preproc.ReadLineReader;
import net.sourceforge.plantuml.preproc.ReadLineSimple;
import net.sourceforge.plantuml.preproc.StartDiagramExtractReader;
import net.sourceforge.plantuml.preproc.Stdlib;
import net.sourceforge.plantuml.tim.EaterException;
public class PreprocessorUtils {
public static String withEnvironmentVariable(String s) {
final Pattern p = Pattern.compile("%(\\w+)%");
final Matcher m = p.matcher(s);
final StringBuffer sb = new StringBuffer();
while (m.find()) {
final String var = m.group(1);
final String value = getenv(var);
if (value != null) {
m.appendReplacement(sb, Matcher.quoteReplacement(value));
}
}
m.appendTail(sb);
s = sb.toString();
return s;
}
public static String getenv(String var) {
final String env = System.getProperty(var);
if (StringUtils.isNotEmpty(env)) {
return StringUtils.eventuallyRemoveStartingAndEndingDoubleQuote(env);
}
final String getenv = System.getenv(var);
if (StringUtils.isNotEmpty(getenv)) {
return StringUtils.eventuallyRemoveStartingAndEndingDoubleQuote(getenv);
}
return null;
}
private static InputStream getStdlibInputStream(String filename) {
final InputStream result = Stdlib.getResourceAsStream(filename);
// Log.info("Loading sdlib " + filename + " ok");
return result;
}
public static ReadLine getReaderStdlibInclude(StringLocated s, String filename) {
Log.info("Loading sdlib " + filename);
InputStream is = getStdlibInputStream(filename);
if (is == null) {
return null;
}
final String description = "<" + filename + ">";
try {
if (StartDiagramExtractReader.containsStartDiagram(is, s, description)) {
is = getStdlibInputStream(filename);
return StartDiagramExtractReader.build(is, s, description);
}
is = getStdlibInputStream(filename);
if (is == null) {
return null;
}
return ReadLineReader.create(new InputStreamReader(is), description);
} catch (IOException e) {
e.printStackTrace();
return new ReadLineSimple(s, e.toString());
}
}
public static ReadLine getReaderIncludeUrl2(final URL url, StringLocated s, String suf, String charset)
throws EaterException {
try {
if (StartDiagramExtractReader.containsStartDiagram(url, s, charset)) {
return StartDiagramExtractReader.build(url, s, suf, charset);
}
final InputStream is = url.openStream();
if (charset == null) {
Log.info("Using default charset");
return ReadLineReader.create(new InputStreamReader(is), url.toString(), s.getLocation());
}
Log.info("Using charset " + charset);
return ReadLineReader.create(new InputStreamReader(is, charset), url.toString(), s.getLocation());
} catch (IOException e) {
e.printStackTrace();
throw EaterException.located("Cannot open URL", s);
}
}
}
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