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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!)
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*
*
* PlantUML is free software; you can redistribute it and/or modify it
* under the terms of the MIT License.
*
* See http://opensource.org/licenses/MIT
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included
* in all copies or substantial portions of the Software.
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR
* IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*
* 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
*
* Images (whatever their format : PNG, SVG, EPS...) generated by running PlantUML
* are owned by the author of their corresponding sources code (that is, their
* textual description in PlantUML language). Those images are not covered by
* this MIT license.
*
* The generated images can then be used without any reference to the MIT license.
* It is not even necessary to stipulate that they have been generated with PlantUML,
* although this will be appreciated by the PlantUML team.
*
* There is an exception : if the textual description in PlantUML language is also covered
* by any license, then the generated images are logically covered
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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
* (see https://plantuml.com/graphviz-dot )
*
* 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
* Themes (c) by Brett Schwarz https://github.com/bschwarz/puml-themes
* Twemoji (c) by Twitter at https://twemoji.twitter.com/
*
*/
package net.sourceforge.plantuml.hcl;
import java.util.ArrayList;
import java.util.Collections;
import java.util.Iterator;
import java.util.LinkedHashMap;
import java.util.List;
import java.util.Map;
import java.util.Map.Entry;
import net.sourceforge.plantuml.json.Json;
import net.sourceforge.plantuml.json.JsonArray;
import net.sourceforge.plantuml.json.JsonObject;
import net.sourceforge.plantuml.json.JsonString;
import net.sourceforge.plantuml.json.JsonValue;
// https://github.com/hashicorp/hcl
public class HclParser {
private final List 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;
}
}