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PlantUML is a component that allows to quickly write diagrams from text.
// THIS FILE HAS BEEN GENERATED BY A PREPROCESSOR.
/* +=======================================================================
* |
* | PlantUML : a free UML diagram generator
* |
* +=======================================================================
*
* (C) Copyright 2009-2024, Arnaud Roques
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* Project Info: https://plantuml.com
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* PlantUML is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License V2.
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* LICENSE ("AGREEMENT"). [GNU General Public License V2]
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* RECIPIENT'S ACCEPTANCE OF THIS AGREEMENT.
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* https://www.gnu.org/licenses/old-licenses/gpl-2.0.html
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* distributed under the License is distributed on an "AS IS" BASIS,
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* See the License for the specific language governing permissions and
* limitations under the License.
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* PlantUML can occasionally display sponsored or advertising messages. Those
* messages are usually generated on welcome or error images and never on
* functional diagrams.
* See https://plantuml.com/professional if you want to remove them
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* Images (whatever their format : PNG, SVG, EPS...) generated by running PlantUML
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* textual description in PlantUML language). Those images are not covered by
* this GPL v2 license.
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* The generated images can then be used without any reference to the GPL v2 license.
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* This is the IGY distribution (Install GraphViz by Yourself).
* You have to install GraphViz and to setup the GRAPHVIZ_DOT environment variable
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* Icons provided by OpenIconic : https://useiconic.com/open
* Archimate sprites provided by Archi : http://www.archimatetool.com
* Stdlib AWS provided by https://github.com/milo-minderbinder/AWS-PlantUML
* Stdlib Icons provided https://github.com/tupadr3/plantuml-icon-font-sprites
* ASCIIMathML (c) Peter Jipsen http://www.chapman.edu/~jipsen
* ASCIIMathML (c) David Lippman http://www.pierce.ctc.edu/dlippman
* CafeUndZopfli ported by Eugene Klyuchnikov https://github.com/eustas/CafeUndZopfli
* Brotli (c) by the Brotli Authors https://github.com/google/brotli
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* Twemoji (c) by Twitter at https://twemoji.twitter.com/
*
*/
package net.sourceforge.plantuml.code;
import java.io.IOException;
import java.io.StringReader;
import net.sourceforge.plantuml.StringUtils;
import net.sourceforge.plantuml.preproc.ReadLine;
import net.sourceforge.plantuml.preproc.ReadLineReader;
import net.sourceforge.plantuml.preproc.UncommentReadLine;
import net.sourceforge.plantuml.regex.Matcher2;
import net.sourceforge.plantuml.regex.MyPattern;
import net.sourceforge.plantuml.regex.Pattern2;
import net.sourceforge.plantuml.text.StringLocated;
public class ArobaseStringCompressor implements StringCompressor {
private final static Pattern2 pattern = MyPattern
.cmpile("(?s)^[%s]*(@startuml[^\\n\\r]*)?[%s]*(.*?)[%s]*(@enduml)?[%s]*$");
public String compress(final String data) throws IOException {
final ReadLine r = new UncommentReadLine(ReadLineReader.create(new StringReader(data), "COMPRESS"));
final StringBuilder sb = new StringBuilder();
final StringBuilder full = new StringBuilder();
StringLocated s = null;
boolean startDone = false;
while ((s = r.readLine()) != null) {
append(full, s);
if (s.getString().startsWith("@startuml")) {
startDone = true;
} else if (s.getString().startsWith("@enduml")) {
return sb.toString();
} else if (startDone) {
append(sb, s);
}
}
if (startDone == false) {
return compressOld(full.toString());
}
return sb.toString();
}
private void append(final StringBuilder sb, StringLocated s) {
if (sb.length() > 0) {
sb.append('\n');
}
sb.append(s.getString());
}
private String compressOld(String s) throws IOException {
final Matcher2 m = pattern.matcher(s);
if (m.find()) {
return clean(m.group(2));
}
return "";
}
public String decompress(String s) {
String result = clean(s);
if (result.startsWith("@start")) {
return result;
}
result = "@startuml\n" + result;
if (result.endsWith("\n") == false) {
result += "\n";
}
result += "@enduml";
return result;
}
private String clean(String s) {
// s = s.replace("\0", "");
s = StringUtils.trin(s);
s = clean1(s);
s = s.replaceAll("@enduml[^\\n\\r]*", "");
s = s.replaceAll("@startuml[^\\n\\r]*", "");
s = StringUtils.trin(s);
return s;
}
private String clean1(String s) {
final Matcher2 m = pattern.matcher(s);
if (m.matches())
return m.group(2);
return s;
}
}