net.sourceforge.plantuml.hcl.HclParser Maven / Gradle / Ivy
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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 terms = new ArrayList();
public HclParser(Iterable source) {
parse(source.iterator());
}
public JsonObject parseMe() {
final Map map = new LinkedHashMap<>();
final Iterator it = terms.iterator();
while (it.hasNext())
map.putAll(getModuleOrSomething(it));
if (map.size() == 1)
return map.values().iterator().next();
final JsonObject result = new JsonObject();
for (Entry ent : map.entrySet())
result.add(ent.getKey(), ent.getValue());
return result;
}
private Map getModuleOrSomething(Iterator it) {
final StringBuilder name = new StringBuilder();
while (true) {
final HclTerm current = it.next();
if (current.is(SymbolType.STRING_QUOTED))
name.append("\"" + current.getData() + "\" ");
else if (current.is(SymbolType.STRING_SIMPLE))
name.append(current.getData() + " ");
else if (current.is(SymbolType.CURLY_BRACKET_OPEN)) {
return Collections.singletonMap(name.toString().trim(), getBracketData(it));
} else
throw new IllegalStateException(current.toString());
}
}
private JsonValue getFunctionData(String functionName, Iterator it) {
final JsonArray args = new JsonArray();
if (it.next().is(SymbolType.PARENTHESIS_OPEN) == false)
throw new IllegalStateException();
while (true) {
final Object value = getValue(it);
if (value instanceof HclTerm && ((HclTerm) value).is(SymbolType.PARENTHESIS_CLOSE)) {
if (args.size() == 0)
return Json.value(functionName + "()");
final JsonObject result = new JsonObject();
result.add(functionName + "()", args);
return result;
}
if (value instanceof HclTerm && ((HclTerm) value).is(SymbolType.COMMA))
continue;
if (value instanceof String)
args.add((String) value);
else if (value instanceof JsonArray)
args.add((JsonArray) value);
else if (value instanceof JsonObject)
args.add((JsonObject) value);
else if (value instanceof JsonString)
args.add((JsonString) value);
else
throw new IllegalStateException();
}
}
private JsonObject getBracketData(Iterator it) {
final JsonObject result = new JsonObject();
while (true) {
final HclTerm current = it.next();
if (current.is(SymbolType.CURLY_BRACKET_CLOSE))
return result;
if (current.is(SymbolType.STRING_SIMPLE) || current.is(SymbolType.STRING_QUOTED)) {
final String fieldName = current.getData();
final HclTerm next = it.next();
if (next.is(SymbolType.EQUALS, SymbolType.TWO_POINTS) == false)
throw new IllegalStateException(current.toString());
final Object value = getValue(it);
if (value instanceof String)
result.add(fieldName, (String) value);
else if (value instanceof JsonArray)
result.add(fieldName, (JsonArray) value);
else if (value instanceof JsonObject)
result.add(fieldName, (JsonObject) value);
else if (value instanceof JsonString)
result.add(fieldName, (JsonString) value);
else
throw new IllegalStateException();
} else
throw new IllegalStateException(current.toString());
}
}
private Object getValue(Iterator it) {
final HclTerm current = it.next();
if (current.is(SymbolType.COMMA, SymbolType.PARENTHESIS_CLOSE))
return current;
if (current.is(SymbolType.STRING_QUOTED))
return current.getData();
if (current.is(SymbolType.STRING_SIMPLE))
return current.getData();
if (current.is(SymbolType.SQUARE_BRACKET_OPEN))
return getArray(it);
if (current.is(SymbolType.CURLY_BRACKET_OPEN))
return getBracketData(it);
if (current.is(SymbolType.FUNCTION_NAME))
return getFunctionData(current.getData(), it);
throw new IllegalStateException(current.toString());
}
private Object getArray(Iterator it) {
final JsonArray result = new JsonArray();
while (true) {
final HclTerm current = it.next();
if (current.is(SymbolType.CURLY_BRACKET_OPEN))
result.add(getBracketData(it));
if (current.is(SymbolType.SQUARE_BRACKET_CLOSE))
return result;
if (current.is(SymbolType.COMMA))
continue;
if (current.is(SymbolType.STRING_QUOTED))
result.add(current.getData());
}
}
@Override
public String toString() {
return terms.toString();
}
private void parse(Iterator it) {
final StringBuilder pendingString = new StringBuilder();
while (it.hasNext()) {
final char c = it.next();
final SymbolType type = getType(c);
if (type == SymbolType.PARENTHESIS_OPEN) {
if (pendingString.length() == 0)
throw new IllegalArgumentException();
terms.add(new HclTerm(SymbolType.FUNCTION_NAME, pendingString.toString()));
pendingString.setLength(0);
} else if (type != null && pendingString.length() > 0) {
terms.add(new HclTerm(SymbolType.STRING_SIMPLE, pendingString.toString()));
pendingString.setLength(0);
}
if (type == SymbolType.SPACE)
continue;
if (type != null) {
terms.add(new HclTerm(type));
continue;
}
if (c == '\"') {
final String s = eatUntilDoubleQuote(it);
terms.add(new HclTerm(SymbolType.STRING_QUOTED, s));
continue;
}
pendingString.append(c);
}
}
private String eatUntilDoubleQuote(Iterator it) {
final StringBuilder sb = new StringBuilder();
while (it.hasNext()) {
final char c = it.next();
if (c == '\\') {
sb.append(it.next());
continue;
}
if (c == '\"')
return sb.toString();
sb.append(c);
}
return sb.toString();
}
private SymbolType getType(final char c) {
if (Character.isSpaceChar(c))
return SymbolType.SPACE;
else if (c == '{')
return SymbolType.CURLY_BRACKET_OPEN;
else if (c == '}')
return SymbolType.CURLY_BRACKET_CLOSE;
else if (c == '[')
return SymbolType.SQUARE_BRACKET_OPEN;
else if (c == ']')
return SymbolType.SQUARE_BRACKET_CLOSE;
else if (c == '(')
return SymbolType.PARENTHESIS_OPEN;
else if (c == ')')
return SymbolType.PARENTHESIS_CLOSE;
else if (c == '=')
return SymbolType.EQUALS;
else if (c == ',')
return SymbolType.COMMA;
else if (c == ':')
return SymbolType.TWO_POINTS;
return null;
}
}