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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
*
* Project Info: https://plantuml.com
*
* If you like this project or if you find it useful, you can support us at:
*
* https://plantuml.com/patreon (only 1$ per month!)
* https://plantuml.com/liberapay (only 1€ per month!)
* https://plantuml.com/paypal
*
*
* PlantUML is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser 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 Lesser General Public
* License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this library. If not, see {
public static final String KEY = "([^:]+)";
private List lines = new ArrayList<>();
public YamlLines(List rawLines) {
for (String s : rawLines) {
if (s.startsWith("#"))
continue;
s = removeDiese(s);
if (s.trim().length() == 0)
continue;
lines.add(s);
}
mergeMultiline();
manageSpaceTwoPoints();
manageList();
final int startingEmptyCols = startingEmptyCols();
removeFirstCols(startingEmptyCols);
}
private void manageSpaceTwoPoints() {
for (ListIterator it = lines.listIterator(); it.hasNext();) {
String s = it.next();
if (s.contains("\"") == false && s.contains("'") == false && s.contains(":")
&& s.indexOf(':') == s.lastIndexOf(':') && s.contains(": ") == false) {
s = s.replace(":", ": ");
it.set(s);
}
}
}
private String removeDiese(String s) {
final int idx = s.indexOf(" #");
if (idx == -1)
return s;
return s.substring(0, idx);
}
private void manageList() {
final List result = new ArrayList<>();
for (String s : lines) {
final Pattern p1 = Pattern.compile("^(\\s*[-])(\\s*\\S.*)$");
final Matcher m1 = p1.matcher(s);
if (s.contains(": ") && m1.matches()) {
result.add(m1.group(1));
result.add(s.replaceFirst("[-]", " "));
} else if (m1.matches()) {
result.add(" " + s);
} else {
result.add(s);
}
}
this.lines = result;
}
private void removeFirstCols(int startingEmptyCols) {
if (startingEmptyCols == 0)
return;
for (ListIterator it = lines.listIterator(); it.hasNext();) {
final String s = it.next().substring(startingEmptyCols);
it.set(s);
}
}
private int startingEmptyCols() {
int result = Integer.MAX_VALUE;
for (String s : lines) {
result = Math.min(result, startingSpaces(s));
if (result == 0)
return 0;
}
return result;
}
private static int startingSpaces(String s) {
final Pattern p1 = Pattern.compile("^(\\s*).*");
final Matcher m1 = p1.matcher(s);
if (m1.matches())
return m1.group(1).length();
return 0;
}
private void mergeMultiline() {
final List result = new ArrayList<>();
for (int i = 0; i < lines.size(); i++) {
final String init = isMultilineStart(i);
if (init != null) {
final StringBuilder sb = new StringBuilder(init);
while (i + 1 < lines.size() && textOnly(lines.get(i + 1))) {
sb.append(" " + lines.get(i + 1).trim());
i++;
}
result.add(sb.toString());
} else {
result.add(lines.get(i));
}
}
this.lines = result;
}
private String isMultilineStart(int i) {
if (nameOnly(lines.get(i)) != null && textOnly(lines.get(i + 1))) {
final int idx = lines.get(i).indexOf(':');
return lines.get(i).substring(0, idx + 1);
}
return null;
}
public static String nameOnly(String s) {
final Pattern p1 = Pattern.compile("^\\s*" + KEY + "\\s*:\\s*[|>]?\\s*$");
final Matcher m1 = p1.matcher(s);
if (m1.matches()) {
final String name = m1.group(1);
return name;
}
return null;
}
private boolean textOnly(String s) {
if (isList(s))
return false;
return s.indexOf(':') == -1;
}
private boolean isList(String s) {
return s.trim().startsWith("-");
}
public Iterator iterator() {
return Collections.unmodifiableList(lines).iterator();
}
}