97 lines
2.1 KiB
Swift
97 lines
2.1 KiB
Swift
//
|
|
// Regex.swift
|
|
// SwifSoup
|
|
//
|
|
// Created by Nabil Chatbi on 08/10/16.
|
|
// Copyright © 2016 Nabil Chatbi.. All rights reserved.
|
|
//
|
|
|
|
import Foundation
|
|
|
|
#if !os(Linux)
|
|
extension NSTextCheckingResult {
|
|
func range(at idx: Int) -> NSRange {
|
|
return rangeAt(idx)
|
|
}
|
|
}
|
|
#endif
|
|
|
|
public struct Pattern {
|
|
public static let CASE_INSENSITIVE: Int = 0x02
|
|
let pattern: String
|
|
|
|
init(_ pattern: String) {
|
|
self.pattern = pattern
|
|
}
|
|
|
|
static public func compile(_ s: String)->Pattern
|
|
{
|
|
return Pattern(s)
|
|
}
|
|
static public func compile(_ s: String, _ op: Int)->Pattern
|
|
{
|
|
return Pattern(s)
|
|
}
|
|
|
|
func validate()throws
|
|
{
|
|
_ = try NCRegularExpression(pattern: self.pattern, options:[])
|
|
}
|
|
|
|
func matcher(in text: String) -> Matcher {
|
|
do {
|
|
let regex = try NCRegularExpression(pattern: self.pattern, options:[])
|
|
let nsString = NSString(string: text)
|
|
let results = regex.matches(in: text,options:[], range: NSRange(location: 0, length: nsString.length))
|
|
|
|
return Matcher(results,text)
|
|
} catch let error {
|
|
print("invalid regex: \(error.localizedDescription)")
|
|
return Matcher([],text)
|
|
}
|
|
}
|
|
|
|
public func toString()->String{
|
|
return pattern
|
|
}
|
|
}
|
|
|
|
public class Matcher
|
|
{
|
|
let matches :[NCTextCheckingResult]
|
|
let string : String
|
|
var index : Int = -1
|
|
|
|
public var count : Int { return matches.count}
|
|
|
|
init(_ m:[NCTextCheckingResult],_ s: String)
|
|
{
|
|
matches = m
|
|
string = s
|
|
}
|
|
|
|
@discardableResult
|
|
public func find() -> Bool
|
|
{
|
|
index += 1
|
|
if(index < matches.count)
|
|
{
|
|
return true
|
|
}
|
|
return false
|
|
}
|
|
|
|
public func group(_ i: Int) -> String?
|
|
{
|
|
let b = matches[index]
|
|
let c = b.range(at:i)
|
|
if(c.location == NSNotFound) {return nil}
|
|
let result = (string as NSString).substring(with:c)
|
|
return result
|
|
}
|
|
public func group() -> String?
|
|
{
|
|
return group(0)
|
|
}
|
|
}
|