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  1. import java.util.*
  2.  
  3. fun main(args: Array<String>) {
  4.     val singleLinePattern = "^(?!\\./)(?!.*/\$)(?!.*\\.\\./)[0-9A-Za-z!\\-_*'(). /]+\$"
  5.     println(singleLinePattern)
  6.  
  7.     println("----------")
  8.  
  9.     val validPathPattern = buildString {
  10. 	    append("^")                    // Start of the line
  11. 	    append("(?!\\./)")             // Negative lookahead to exclude "./"
  12. 	    append("[0-9A-Za-z_*'(). /]+") // Character set allowing specified characters
  13. 	    append("(?!/\$)")              // Negative lookahead to exclude "/" at the end
  14. 	    append("\$")                   // End of the line
  15. 	}.trimIndent()
  16.     print(validPathPattern)	
  17. }
Success #stdin #stdout 0.14s 42028KB
comments (?)
stdin 
Standard input is empty
stdout 
^(?!\./)(?!.*/$)(?!.*\.\./)[0-9A-Za-z!\-_*'(). /]+$
----------
^(?!\./)[0-9A-Za-z_*'(). /]+(?!/$)$
https://ideone.com/1dWXsV
language:
Kotlin (kotlin 1.3.21)
created:
1 year ago
visibility:
secret

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