67 lines
2.1 KiB
Java
67 lines
2.1 KiB
Java
package io.github.lonamiwebs.overgram.parser;
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import java.io.File;
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import java.io.FileReader;
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import java.io.IOException;
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import java.util.ArrayList;
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import java.util.List;
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public class TLReader {
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private static final int BUFFER_SIZE = 4096;
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public static List<TLObject> readTlObjects(final File file) {
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final List<String> lines = readFileWithDelimiter(new File("telegram_api.tl"), ';');
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sanitizeTlLines(lines);
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final List<TLObject> objects = new ArrayList<>(lines.size());
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for (final String line : lines) {
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objects.add(TLObject.fromString(line));
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}
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return objects;
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}
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private static List<String> readFileWithDelimiter(final File file, final char delimiter) {
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final List<String> result = new ArrayList<>();
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try (final FileReader reader = new FileReader(file)) {
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int read;
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final char[] buffer = new char[BUFFER_SIZE];
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final StringBuilder builder = new StringBuilder();
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while ((read = reader.read(buffer)) > 0) {
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for (int i = 0; i < read; ++i) {
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if (buffer[i] == delimiter) {
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result.add(builder.toString());
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builder.setLength(0);
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} else {
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builder.append(buffer[i]);
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}
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}
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}
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} catch (IOException ignored) {
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}
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return result;
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}
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private static void sanitizeTlLines(final List<String> lines) {
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String line;
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int comment;
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int newline;
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for (int i = lines.size(); i-- != 0; ) {
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line = lines.get(i);
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while ((comment = line.indexOf("//")) != -1) {
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newline = line.indexOf("\n", comment + 2);
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if (newline == -1) {
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newline = line.length();
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}
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line = line.substring(0, comment) + line.substring(newline);
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}
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line = line.trim();
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if (line.isEmpty()) {
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lines.remove(i);
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} else {
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lines.set(i, line);
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}
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}
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}
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}
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