import Foundation
let pattern = #"(public|protected|private|static|\s) +[\w\<\>\[\]]+\s+(\w+) *\([^\)]*\)\s*(\{)"#
let regex = try! NSRegularExpression(pattern: pattern)
let testString = #"""
/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* 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.
*/
package org.apache.pdfbox.pdmodel.interactive.documentnavigation.outline;
import org.apache.pdfbox.cos.COSDictionary;
import org.apache.pdfbox.cos.COSName;
/**
* This represents an outline in a pdf document.
*
* @author <a href="mailto:ben@benlitchfield.com">Ben Litchfield</a>
* @version $Revision: 1.2 $
*/
public final class PDDocumentOutline extends PDOutlineNode
{
static java.io.BufferedWriter bfn;
static java.io.BufferedWriter bf;
/**
* Default Constructor.
*/
public PDDocumentOutline()
{
getCOSDictionary().setName(COSName.TYPE, COSName.OUTLINES.getName());
}
/**
* Constructor for an existing document outline.
*
* @param dic The storage dictionary.
*/
public PDDocumentOutline( COSDictionary dic )
{
super( dic );
getCOSDictionary().setName(COSName.TYPE, COSName.OUTLINES.getName());
}
@Override
public boolean isNodeOpen()
{
return true;
}
@Override
public void openNode()
{
// The root of the outline hierarchy is not an OutlineItem and cannot be opened or closed
}
@Override
public void closeNode()
{
// The root of the outline hierarchy is not an OutlineItem and cannot be opened or closed
}
}
"""#
let stringRange = NSRange(location: 0, length: testString.utf16.count)
let matches = regex.matches(in: testString, range: stringRange)
var result: [[String]] = []
for match in matches {
var groups: [String] = []
for rangeIndex in 1 ..< match.numberOfRanges {
let nsRange = match.range(at: rangeIndex)
guard !NSEqualRanges(nsRange, NSMakeRange(NSNotFound, 0)) else { continue }
let string = (testString as NSString).substring(with: nsRange)
groups.append(string)
}
if !groups.isEmpty {
result.append(groups)
}
}
print(result)
Please keep in mind that these code samples are automatically generated and are not guaranteed to work. If you find any syntax errors, feel free to submit a bug report. For a full regex reference for Swift 5.2, please visit: https://developer.apple.com/documentation/foundation/nsregularexpression