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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 General Public License V2.
*
* THE ACCOMPANYING PROGRAM IS PROVIDED UNDER THE TERMS OF THIS ECLIPSE PUBLIC
* LICENSE ("AGREEMENT"). [GNU General Public License V2]
*
* ANY USE, REPRODUCTION OR DISTRIBUTION OF THE PROGRAM CONSTITUTES
* RECIPIENT'S ACCEPTANCE OF THIS AGREEMENT.
*
* You may obtain a copy of the License at
*
* https://www.gnu.org/licenses/old-licenses/gpl-2.0.html
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
* 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 GPL v2 license.
*
* The generated images can then be used without any reference to the GPL v2 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
* by the very same license.
*
* 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.logo;
import java.util.HashMap;
import java.util.Map;
class LogoScanner {
// ::remove folder when __HAXE__
// ::remove folder when __CORE__
// ::remove folder when __MIT__ or __EPL__ or __BSD__ or __ASL__ or __LGPL__
final private Map keywordTable = new HashMap();
private char sourceString[];
private int sourceLength;
private int i;
public LogoScanner() {
keywordTable.put("forward", LogoToken.FORWARD);
keywordTable.put("fd", LogoToken.FORWARD);
keywordTable.put("back", LogoToken.BACK);
keywordTable.put("bk", LogoToken.BACK);
keywordTable.put("right", LogoToken.RIGHT);
keywordTable.put("rt", LogoToken.RIGHT);
keywordTable.put("left", LogoToken.LEFT);
keywordTable.put("lt", LogoToken.LEFT);
keywordTable.put("penup", LogoToken.PENUP);
keywordTable.put("pu", LogoToken.PENUP);
keywordTable.put("pendown", LogoToken.PENDOWN);
keywordTable.put("pd", LogoToken.PENDOWN);
keywordTable.put("hideturtle", LogoToken.HIDETURTLE);
keywordTable.put("ht", LogoToken.HIDETURTLE);
keywordTable.put("showturtle", LogoToken.SHOWTURTLE);
keywordTable.put("st", LogoToken.SHOWTURTLE);
keywordTable.put("clearscreen", LogoToken.CLEARSCREEN);
keywordTable.put("cs", LogoToken.CLEARSCREEN);
keywordTable.put("repeat", LogoToken.REPEAT);
keywordTable.put("rep", LogoToken.REPEAT);
keywordTable.put("to", LogoToken.TO);
keywordTable.put("setpc", LogoToken.SETPC);
keywordTable.put("pc", LogoToken.SETPC);
}
public int getPosition() {
return i;
}
public void setPosition(int newPosition) {
if (i >= 0 && i <= sourceLength) {
i = newPosition;
} else {
i = sourceLength;
}
}
public void setSourceString(String newSourceString) {
sourceLength = newSourceString.length();
sourceString = newSourceString.concat("\0").toCharArray();
i = 0;
}
public String getSourceString() {
return new String(sourceString);
}
public String getRestAsString() {
skipWhitespace();
final String rest = new String(sourceString, i, sourceLength - i + 1);
i = sourceLength;
return rest;
}
void skipWhitespace() {
char c;
do {
c = sourceString[i++];
} while (c == ' ' || c == '\t');
i--;
}
public LogoToken getToken() {
final LogoToken token = new LogoToken();
final StringBuilder lexeme = new StringBuilder();
if (i >= sourceLength) {
token.kind = LogoToken.END_OF_INPUT;
return token;
}
// Skip whitespace.
skipWhitespace();
char c = sourceString[i++];
// Now figure out what kind of token we've got.
if (c == '[' || c == ']') {
token.kind = c;
token.lexeme = String.valueOf(c);
} else if ((c >= 'a' && c <= 'z') || (c >= 'A' && c <= 'Z')) {
do {
lexeme.append(c);
c = sourceString[i++];
} while ((c >= 'a' && c <= 'z') || (c >= 'A' && c <= 'Z'));
i--;
token.lexeme = lexeme.toString();
token.kind = LogoToken.IDENTIFIER;
final Integer keyword = keywordTable.get(token.lexeme);
if (keyword != null) {
token.kind = keyword;
}
} else if (c >= '0' && c <= '9') {
do {
lexeme.append(c);
c = sourceString[i++];
} while (c >= '0' && c <= '9');
boolean hasDecimalPart = false;
if (c == '.') {
do {
lexeme.append(c);
c = sourceString[i++];
} while (c >= '0' && c <= '9');
hasDecimalPart = true;
}
i--;
token.lexeme = lexeme.toString();
token.value = Float.parseFloat(token.lexeme);
if (hasDecimalPart) {
token.kind = LogoToken.FLOAT;
} else {
token.kind = LogoToken.INTEGER;
token.intValue = Integer.parseInt(token.lexeme);
}
} else if (c == 0) {
i--;
token.kind = LogoToken.END_OF_INPUT;
} else {
i--;
token.kind = LogoToken.INVALID_TOKEN;
}
return token;
}
}