Perl 6 is here today ... for some uses, like writing parsing scripts, that would be too complicated for a single Perl 5 regex. This is an overview what has changed.

1. Perl 6 regex

2. Perl 6 regex
In search for perfection

3. Many Things Gone

4. Some Stayed
capturing: (…) escape:
mods: i, g
quantifier: *, +, ?
alternatives: |
match var.: $/
min. match. suffix: ??, *?, +?

5. Operators

6. Create A Regex
rx/.../

7. It's The New qr//
rx/.../

8. Apply Rx
~~,

9. Known Since 5.10
~~,

10. Still Changing In 5.18
~~,

11. Apply Rx
~~,
no more =~

12. Operators
m// s///

13. Rx Methods
match comb
subst

14. Operators
ms// ss///

15. Operators
m :s// s :ss///

16. Modifiers
no x

17. Modifiers
no x m s

18. Modifiers
no s e x

19. Modifiers
no s ee x

20. Modifiers
P5 Perl5

21. Modifiers
:P5 :Perl5

22. Modifiers
~~ m :P5 /.../

23. Modifiers
:g :global

24. Match x Times
:x(n)

25. Just nth Match
:nth(n)

26. Search from Pos On
:c(n)
:continue(n)

27. Search Only On Pos
:p(n)
:pos(n)

28. Spaces Have Meaning
:s :sigspace
:ss :samespace

29. Like qw// Only Smarter
:s :sigspace
:ss :samespace

30. Lower Line Is For s///
:s :sigspace
:ss :samespace

31. Modifiers
:i :ignorecase
:ii :samecase

32. Modifiers
:m :ignoremark
:mm :samemark

33. Choose A Level
:bytes :chars
:codes :graphs

34. Metachar

35. Metachar
.

36. Metachar
.
any char

37. Metachar
.

38. Metachar
.

39. No Output In Perl 5
perl -e 'print 1 if "n"=~ /./

40. Do Output In Perl 6
perl6 -e 'say 1 if "n"~~ /./

41. Metachar
.
any char

42. Metachar
N
not a newline

43. Metachar
^ $
You know that

44. Metachar
^^ $$
linewise

45. 'a' Wins In Perl 5
perl -E '"ab"=~ /(a|ab)/;say $1'

46. 'ab' Wins In Perl 6
perl6 -E '"ab"~~/(a|ab)/;say $0'

47. Metachar
|
longest wins

48. Metachar
||
first wins

49. Metachar
()
capt. groups

50. Metachar
[]
nonecapturing
groups

51. Metachar
<[ ]>
char classes

52. Metachar
s
space

53. Metachar
s = h | v
horizont. or vertic.

54. Metachar
s = h | v
r n and alike

55. Metachar
s = h | v
Spaces, tabs(t)
and alike

56. Quantifiers

57. Quantifiers
simple have
not changed

58. Five Digits
d ** 5

59. Five Digits
d ** 5
'12345'

60. Two to Five Digits
d ** 2..5

61. Colon Seperated Digits
d+ % ','

62. Colon Seperated Digits
d+ % ','
'1,2,3,4'

63. + Trailing Seperator
d+ %% ','
'1,2,3,4,'

64. Combined
d ** 2..* % ','

65. Special Var

66. Match Object
$/
last sucessful
Match

67. Named Submatch
$/
$/<...>

68. Named Submatch
$/
$/{'...'}
$<...>

69. List Of Matches
@()

70. List Of Matches
@()
@() = $0 ..

71. List Of Matches
@()[n]
@() = $0 ..(no limit)

72. AoA Of Matches
@()[1][2]
.(.).(.(.).(.).(...).).

73. Learn More
http://perlcabal.org
/syn/S05.html

74. Thank You