net.sourceforge.plantuml.yaml.YamlLines Maven / Gradle / Ivy
// THIS FILE HAS BEEN GENERATED BY A PREPROCESSOR.
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package net.sourceforge.plantuml.yaml;
import java.util.ArrayList;
import java.util.Collections;
import java.util.Iterator;
import java.util.List;
import java.util.ListIterator;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
public class YamlLines implements Iterable {
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();
}
}