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  1. import java.util.*;
  2. import java.lang.*;
  3. import java.io.*;
  4. import java.util.regex.*;
  5. class Ideone
  6. {
  7. 	public static void main (String[] args) throws java.lang.Exception
  8. 	{
  9. 		//System.out.println(rightPad("PERMISSION", 35) + rightPad("PERMISSION EXPRESSION", 35) + "RESULT");
  10.  
  11.         // ALL TRUE
  12.         magicFunction(   "A.B.C",    "A.B.C.D");
  13.         magicFunction(   "A.B.C.D",  "A.B.C.D");
  14.         magicFunction(   "A.B.C.D",  "A.B.*");
  15.         magicFunction(   "A.B.C.D",  "A.B.?.D");
  16.         magicFunction(   "A.B.C.D",  "A.B.C.[D,E,F]");
  17.         magicFunction(   "A.B.C.E",  "A.B.C.[D,E,F]");
  18.         magicFunction(   "A.B.C.F",  "A.<A,C>.C.[D,E,F]");
  19.         magicFunction(   "A.B.C.D",  "A.B.C.<A,B,C>");
  20.         magicFunction(   "A.B.C.E",  "A.B.C.<A,B,C>");
  21.         magicFunction(   "A.B.C.F",  "A.[B].C.<A,B,C>");
  22.  
  23.         System.out.println();
  24.  
  25.         // ALL FALSE
  26.         magicFunction(  "A.B.C",    "A.B");
  27.         magicFunction(  "A.B.C.D",  "A.B.?.E");
  28.         magicFunction(  "A.B.C.D",  "A.D.*");
  29.         magicFunction(  "A.B.C.D",  "A.B.?");
  30.         magicFunction(  "A.B.C.Q",  "A.?.C.[D,E,F]");
  31.         magicFunction(  "A.B.C.W",  "A.?.C.[D,E,F]");
  32.         magicFunction(  "A.B.C.E",  "A.<B,D,E>.?.[D,E,F]");
  33.         magicFunction(  "A.B.C.A",  "A.B.C.<A,B,C>");
  34.         magicFunction(  "A.B.C.B",  "A.B.C.<A,B,C>");
  35.         magicFunction(  "A.B.C.C",  "A.[D].C.<A,B,C>");
  36. 	}
  37. 	public static boolean magicFunction(String permission, String permissionExpression) {
  38.         return magicFunctionImplementation(permission, permissionExpression);
  39.     }
  40.  
  41.     public static boolean magicFunctionImplementation(String permission, String permissionExpression) {
  42.     	boolean res = false;
  43.     	String rx = permissionExpression.replace(".", "\\.")
  44.     			.replace("*", ".*")
  45.     			.replace("?", ".")
  46.     			.replaceAll("\\[([^\\]\\[]*)]", "($1)")
  47.     			.replaceAll("<([^<>]+)>", "(?:(?!$1)[^.])*")
  48.     			.replace(",", "|");
  49.     	System.out.println(rx);
  50.     	if (permissionExpression.contains(permission)) {
  51.     		res = true;
  52.     	} else {
  53.     		res = permission.matches(rx);
  54.     	}
  55.     	System.out.println(res);
  56.         return res;
  57.     }
  58.  
  59. }
Success #stdin #stdout 0.06s 320576KB
comments (?)
stdin
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Standard input is empty
stdout
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A\.B\.C\.D
true
A\.B\.C\.D
true
A\.B\..*
true
A\.B\..\.D
true
A\.B\.C\.(D|E|F)
true
A\.B\.C\.(D|E|F)
true
A\.(?:(?!A|C)[^.])*\.C\.(D|E|F)
true
A\.B\.C\.(?:(?!A|B|C)[^.])*
true
A\.B\.C\.(?:(?!A|B|C)[^.])*
true
A\.(B)\.C\.(?:(?!A|B|C)[^.])*
true

A\.B
false
A\.B\..\.E
false
A\.D\..*
false
A\.B\..
false
A\..\.C\.(D|E|F)
false
A\..\.C\.(D|E|F)
false
A\.(?:(?!B|D|E)[^.])*\..\.(D|E|F)
false
A\.B\.C\.(?:(?!A|B|C)[^.])*
false
A\.B\.C\.(?:(?!A|B|C)[^.])*
false
A\.(D)\.C\.(?:(?!A|B|C)[^.])*
false
https://ideone.com/A7b0CN
language:
Java (HotSpot 12)
created:
7 years ago
visibility:
secret

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