How can I get the function "-> (" xxx "," xxx ")" at the end of some text

Question

I want to get one or more ->func(xxx,xxx)at the end of a piece of code.

They can be like this:

any code any code ->func(xxx)

or

any code any code 
->func()

or

any code any code 
-funcA()->funcB(xxx)

or

any code any code 
->funcA()
->funcB(xxx)

or mix them:

o.start_time = obj.s;
o.repair_type -> obj.r;
o.limit -> obj.l;->god("('\"\"')") ->fox(,'->')
->egg()->dog(,'c')
->cat(,'b')-> banana(,'a"\'\(\)\'->"()')  ->  apple(,'a')

In this code I want:

• plan A

  • get a substring apple(,'a')
  • remove -> apple(,'a')
  • get a substring banana(,'a"\'\(\)\'->"()')
  • remove -> banana(,'a"\'\(\)\'->"()')
  • get a substring cat(,'b')
  • remove ->cat(,'b')
  • get a substring dog(,'c')
  • remove ->dog(,'c')
  • get egg()
  • remove ->egg()
  • get fox(,'->')
  • remove ->fox(,'->')
  • get god("('\"\"')")god("('\"\"')")
  • remove ->god("('\"\"')")
  • Over

• plan B:

  • get and delete ->cat(,'b')-> banana(,'a"\'\(\)\'->"()') -> apple(,'a')
    • get a substring apple(,'a')
    • remove -> apple(,'a')
    • get a substring banana(,'a"\'\(\)\'->"()')
    • remove -> banana(,'a"\'\(\)\'->"()')
    • get a substring cat(,'b')
    • remove ->cat(,'b')
  • get and delete ->egg()->dog(,'c')
    • get a substring dog(,'c')
    • remove ->dog(,'c')
    • get egg()
    • remove ->egg()
  • get and delete ->god("('\"\"')") ->fox(,'->')
    • get fox(,'->')
    • remove ->fox(,'->')
    • get god("('\"\"')")god("('\"\"')")
    • remove ->god("('\"\"')")
  • Over

Now, I'm trying to planB with these two RegEx, but not good enough:

loop
    if match "\R\s*->\s*(.+)$"
        get substring and remove
        loop substring
        if match "(?:(?<=\)).)*\s*->\s*(((?!->).)*)$"
            push substring2 to arr
            remove substring2
        else
            break
    else
        break

Answer 1

I don't think regular expression is the last resort to match what you need, but it can be used for a one-time task.

PCRE , . , (...)

(?:((?(3)\s*|\R*)->\s*([\w.]*(\((?>'[^'\\]*(?:\\.[^'\\]*)*'|"[^"\\]*(?:\\.[^"\\]*)*"‌​|[^"'()]++|(?3))*\)))))+\s*\z

regex

:

• (?:((?(3)\s*|\R*)->\s*([\w.]*(\((?>'[^'\\]*(?:\\.[^'\\]*)*'|"[^"\\]*(?:\\.[^"\\]*)*"‌​|[^"'()]++|(?3))*\)))))+ - 1 :
  • (?(3)\s*|\R*) - , , 3, 0+, 3 , 0+ ( \R*), 3 ​​( , )
  • ->\s* - ->, 0+
  • ([\w.]*) - ( 1, ) 0 + -//
  • (\((?>'[^'\\]*(?:\\.[^'\\]*)*'|"[^"\\]*(?:\\.[^"\\]*)*"|[^"'()]++|(?1))*\)) - 1
    • \( - (
    • (?>'[^'\\]*(?:\\.[^'\\]*)*'|"[^"\\]*(?:\\.[^"\\]*)*"|[^"'()]++|(?3))* - ('[^'\\]*(?:\\.[^'\\]*)*') ("[^"\\]*(?:\\.[^"\\]*)*") (...) ([^"'()]++|(?3), (?3) 3).
    • \) - )
• \s*\z - 0+ whitespace \s* \z.

Answer 2

: . , , .

"Flex Bison" O'Reilly .