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* Original authors (EPL-2.0): Sebastian Thomschke, Angelo Zerr (tm4e).

* Initial code (MIT): Microsoft Corporation (vscode-textmate).

* This program is licensed under the Eclipse Public License 2.0 (EPL-2.0).

* See https://www.eclipse.org/legal/epl-2.0/ for details.

package tm4java;

import java.time.Duration;

import java.util.Arrays;

import java.util.function.BiConsumer;

import tm4java.grammar.IGrammar;

import tm4java.grammar.IGrammarSource;

import tm4java.grammar.IStateStack;

import tm4java.grammar.IToken;

import tm4java.grammar.ITokenizeLineResult;

import tm4java.registry.Registry;

import tm4java.theme.ITheme;

import tm4java.theme.IThemeSource;

import tm4java.theme.StyleAttributes;

public class UsageTest {

public static void main(String[] args) {

var registry = new Registry();

IGrammar grammar = registry.addGrammar(IGrammarSource.fromFile(

Resources.getFile("/tm4java/language_pack/java/java.tmLanguage.json")

));

ITheme theme = registry.setTheme(IThemeSource.fromFile(

Resources.getFile("/tm4java/test-cases/themes/light_vs.json")

));

String text = """

public static void main(String[] args) {

System.out.println("Hello World!");

}

""";

BiConsumer<String, IToken> printer = (line, token) -> {

System.out.printf("Token:\t'%s'%n", line.substring(token.getStartIndex(), token.getEndIndex()));

System.out.printf("Scopes:\t%s%n",token.getScopes());

for (int i = token.getScopes().size() - 1; i >= 0; i--) {

String scope = token.getScopes().get(i);

StyleAttributes style = theme.match(scope);

if (style != null && !StyleAttributes.NO_STYLE.equals(style)) {

System.out.println("Style:\t" + style);

}

};

IStateStack state = null;

for (var line : text.split("\r?\n")) {

ITokenizeLineResult<IToken[]> result = grammar.tokenizeLine(line, state, Duration.ofSeconds(1));

state = result.ruleStack();

Arrays.stream(result.tokens()).forEach(token -> printer.accept(line, token));

}