Subversion Repositories openrisc

NOTE    implicit vs. explicit repetitions : 2009-02-02

# Glenn Fowler <gsf@research.att.com>
# conforming matches (column 4) must match one of the following BREs
#       NOMATCH
#       (0,.)\((\(.\),\(.\))(?,?)(\2,\3)\)*
#       (0,.)\((\(.\),\(.\))(\2,\3)(?,?)\)*
# i.e., each 3-tuple has two identical elements and one (?,?)

E       ((..)|(.))                              NULL            NOMATCH
E       ((..)|(.))((..)|(.))                    NULL            NOMATCH
E       ((..)|(.))((..)|(.))((..)|(.))          NULL            NOMATCH

E       ((..)|(.)){1}                           NULL            NOMATCH
E       ((..)|(.)){2}                           NULL            NOMATCH
E       ((..)|(.)){3}                           NULL            NOMATCH

E       ((..)|(.))*                             NULL            (0,0)

E       ((..)|(.))                              a               (0,1)(0,1)(?,?)(0,1)
E       ((..)|(.))((..)|(.))                    a               NOMATCH
E       ((..)|(.))((..)|(.))((..)|(.))          a               NOMATCH

E       ((..)|(.)){1}                           a               (0,1)(0,1)(?,?)(0,1)
E       ((..)|(.)){2}                           a               NOMATCH
E       ((..)|(.)){3}                           a               NOMATCH

E       ((..)|(.))*                             a               (0,1)(0,1)(?,?)(0,1)

E       ((..)|(.))                              aa              (0,2)(0,2)(0,2)(?,?)
E       ((..)|(.))((..)|(.))                    aa              (0,2)(0,1)(?,?)(0,1)(1,2)(?,?)(1,2)
E       ((..)|(.))((..)|(.))((..)|(.))          aa              NOMATCH

E       ((..)|(.)){1}                           aa              (0,2)(0,2)(0,2)(?,?)
E       ((..)|(.)){2}                           aa              (0,2)(1,2)(?,?)(1,2)
E       ((..)|(.)){3}                           aa              NOMATCH

E       ((..)|(.))*                             aa              (0,2)(0,2)(0,2)(?,?)

E       ((..)|(.))                              aaa             (0,2)(0,2)(0,2)(?,?)
E       ((..)|(.))((..)|(.))                    aaa             (0,3)(0,2)(0,2)(?,?)(2,3)(?,?)(2,3)
E       ((..)|(.))((..)|(.))((..)|(.))          aaa             (0,3)(0,1)(?,?)(0,1)(1,2)(?,?)(1,2)(2,3)(?,?)(2,3)

E       ((..)|(.)){1}                           aaa             (0,2)(0,2)(0,2)(?,?)
#E      ((..)|(.)){2}                           aaa             (0,3)(2,3)(?,?)(2,3)
E       ((..)|(.)){2}                           aaa             (0,3)(2,3)(0,2)(2,3)    RE2/Go
E       ((..)|(.)){3}                           aaa             (0,3)(2,3)(?,?)(2,3)

#E      ((..)|(.))*                             aaa             (0,3)(2,3)(?,?)(2,3)
E       ((..)|(.))*                             aaa             (0,3)(2,3)(0,2)(2,3)    RE2/Go

E       ((..)|(.))                              aaaa            (0,2)(0,2)(0,2)(?,?)
E       ((..)|(.))((..)|(.))                    aaaa            (0,4)(0,2)(0,2)(?,?)(2,4)(2,4)(?,?)
E       ((..)|(.))((..)|(.))((..)|(.))          aaaa            (0,4)(0,2)(0,2)(?,?)(2,3)(?,?)(2,3)(3,4)(?,?)(3,4)

E       ((..)|(.)){1}                           aaaa            (0,2)(0,2)(0,2)(?,?)
E       ((..)|(.)){2}                           aaaa            (0,4)(2,4)(2,4)(?,?)
#E      ((..)|(.)){3}                           aaaa            (0,4)(3,4)(?,?)(3,4)
E       ((..)|(.)){3}                           aaaa            (0,4)(3,4)(0,2)(3,4)    RE2/Go

E       ((..)|(.))*                             aaaa            (0,4)(2,4)(2,4)(?,?)

E       ((..)|(.))                              aaaaa           (0,2)(0,2)(0,2)(?,?)
E       ((..)|(.))((..)|(.))                    aaaaa           (0,4)(0,2)(0,2)(?,?)(2,4)(2,4)(?,?)
E       ((..)|(.))((..)|(.))((..)|(.))          aaaaa           (0,5)(0,2)(0,2)(?,?)(2,4)(2,4)(?,?)(4,5)(?,?)(4,5)

E       ((..)|(.)){1}                           aaaaa           (0,2)(0,2)(0,2)(?,?)
E       ((..)|(.)){2}                           aaaaa           (0,4)(2,4)(2,4)(?,?)
#E      ((..)|(.)){3}                           aaaaa           (0,5)(4,5)(?,?)(4,5)
E       ((..)|(.)){3}                           aaaaa           (0,5)(4,5)(2,4)(4,5)    RE2/Go

#E      ((..)|(.))*                             aaaaa           (0,5)(4,5)(?,?)(4,5)
E       ((..)|(.))*                             aaaaa           (0,5)(4,5)(2,4)(4,5)    RE2/Go

E       ((..)|(.))                              aaaaaa          (0,2)(0,2)(0,2)(?,?)
E       ((..)|(.))((..)|(.))                    aaaaaa          (0,4)(0,2)(0,2)(?,?)(2,4)(2,4)(?,?)
E       ((..)|(.))((..)|(.))((..)|(.))          aaaaaa          (0,6)(0,2)(0,2)(?,?)(2,4)(2,4)(?,?)(4,6)(4,6)(?,?)

E       ((..)|(.)){1}                           aaaaaa          (0,2)(0,2)(0,2)(?,?)
E       ((..)|(.)){2}                           aaaaaa          (0,4)(2,4)(2,4)(?,?)
E       ((..)|(.)){3}                           aaaaaa          (0,6)(4,6)(4,6)(?,?)

E       ((..)|(.))*                             aaaaaa          (0,6)(4,6)(4,6)(?,?)

NOTE    additional repetition tests graciously provided by Chris Kuklewicz www.haskell.org 2009-02-02

# These test a bug in OS X / FreeBSD / NetBSD, and libtree. 
# Linux/GLIBC gets the {8,} and {8,8} wrong.

:HA#100:E       X(.?){0,}Y      X1234567Y       (0,9)(7,8)
:HA#101:E       X(.?){1,}Y      X1234567Y       (0,9)(7,8)
:HA#102:E       X(.?){2,}Y      X1234567Y       (0,9)(7,8)
:HA#103:E       X(.?){3,}Y      X1234567Y       (0,9)(7,8)
:HA#104:E       X(.?){4,}Y      X1234567Y       (0,9)(7,8)
:HA#105:E       X(.?){5,}Y      X1234567Y       (0,9)(7,8)
:HA#106:E       X(.?){6,}Y      X1234567Y       (0,9)(7,8)
:HA#107:E       X(.?){7,}Y      X1234567Y       (0,9)(7,8)
:HA#108:E       X(.?){8,}Y      X1234567Y       (0,9)(8,8)
#:HA#110:E      X(.?){0,8}Y     X1234567Y       (0,9)(7,8)
:HA#110:E       X(.?){0,8}Y     X1234567Y       (0,9)(8,8)      RE2/Go
#:HA#111:E      X(.?){1,8}Y     X1234567Y       (0,9)(7,8)
:HA#111:E       X(.?){1,8}Y     X1234567Y       (0,9)(8,8)      RE2/Go
#:HA#112:E      X(.?){2,8}Y     X1234567Y       (0,9)(7,8)
:HA#112:E       X(.?){2,8}Y     X1234567Y       (0,9)(8,8)      RE2/Go
#:HA#113:E      X(.?){3,8}Y     X1234567Y       (0,9)(7,8)
:HA#113:E       X(.?){3,8}Y     X1234567Y       (0,9)(8,8)      RE2/Go
#:HA#114:E      X(.?){4,8}Y     X1234567Y       (0,9)(7,8)
:HA#114:E       X(.?){4,8}Y     X1234567Y       (0,9)(8,8)      RE2/Go
#:HA#115:E      X(.?){5,8}Y     X1234567Y       (0,9)(7,8)
:HA#115:E       X(.?){5,8}Y     X1234567Y       (0,9)(8,8)      RE2/Go
#:HA#116:E      X(.?){6,8}Y     X1234567Y       (0,9)(7,8)
:HA#116:E       X(.?){6,8}Y     X1234567Y       (0,9)(8,8)      RE2/Go
#:HA#117:E      X(.?){7,8}Y     X1234567Y       (0,9)(7,8)
:HA#117:E       X(.?){7,8}Y     X1234567Y       (0,9)(8,8)      RE2/Go
:HA#118:E       X(.?){8,8}Y     X1234567Y       (0,9)(8,8)

# These test a fixed bug in my regex-tdfa that did not keep the expanded
# form properly grouped, so right association did the wrong thing with
# these ambiguous patterns (crafted just to test my code when I became
# suspicious of my implementation).  The first subexpression should use
# "ab" then "a" then "bcd".

# OS X / FreeBSD / NetBSD badly fail many of these, with impossible
# results like (0,6)(4,5)(6,6).

:HA#260:E       (a|ab|c|bcd){0,}(d*)    ababcd  (0,6)(3,6)(6,6)
:HA#261:E       (a|ab|c|bcd){1,}(d*)    ababcd  (0,6)(3,6)(6,6)
:HA#262:E       (a|ab|c|bcd){2,}(d*)    ababcd  (0,6)(3,6)(6,6)
:HA#263:E       (a|ab|c|bcd){3,}(d*)    ababcd  (0,6)(3,6)(6,6)
:HA#264:E       (a|ab|c|bcd){4,}(d*)    ababcd  NOMATCH
:HA#265:E       (a|ab|c|bcd){0,10}(d*)  ababcd  (0,6)(3,6)(6,6)
:HA#266:E       (a|ab|c|bcd){1,10}(d*)  ababcd  (0,6)(3,6)(6,6)
:HA#267:E       (a|ab|c|bcd){2,10}(d*)  ababcd  (0,6)(3,6)(6,6)
:HA#268:E       (a|ab|c|bcd){3,10}(d*)  ababcd  (0,6)(3,6)(6,6)
:HA#269:E       (a|ab|c|bcd){4,10}(d*)  ababcd  NOMATCH
:HA#270:E       (a|ab|c|bcd)*(d*)       ababcd  (0,6)(3,6)(6,6)
:HA#271:E       (a|ab|c|bcd)+(d*)       ababcd  (0,6)(3,6)(6,6)

# The above worked on Linux/GLIBC but the following often fail.
# They also trip up OS X / FreeBSD / NetBSD:

#:HA#280:E      (ab|a|c|bcd){0,}(d*)    ababcd  (0,6)(3,6)(6,6)
:HA#280:E       (ab|a|c|bcd){0,}(d*)    ababcd  (0,6)(4,5)(5,6) RE2/Go
#:HA#281:E      (ab|a|c|bcd){1,}(d*)    ababcd  (0,6)(3,6)(6,6)
:HA#281:E       (ab|a|c|bcd){1,}(d*)    ababcd  (0,6)(4,5)(5,6) RE2/Go
#:HA#282:E      (ab|a|c|bcd){2,}(d*)    ababcd  (0,6)(3,6)(6,6)
:HA#282:E       (ab|a|c|bcd){2,}(d*)    ababcd  (0,6)(4,5)(5,6) RE2/Go
#:HA#283:E      (ab|a|c|bcd){3,}(d*)    ababcd  (0,6)(3,6)(6,6)
:HA#283:E       (ab|a|c|bcd){3,}(d*)    ababcd  (0,6)(4,5)(5,6) RE2/Go
:HA#284:E       (ab|a|c|bcd){4,}(d*)    ababcd  NOMATCH
#:HA#285:E      (ab|a|c|bcd){0,10}(d*)  ababcd  (0,6)(3,6)(6,6)
:HA#285:E       (ab|a|c|bcd){0,10}(d*)  ababcd  (0,6)(4,5)(5,6) RE2/Go
#:HA#286:E      (ab|a|c|bcd){1,10}(d*)  ababcd  (0,6)(3,6)(6,6)
:HA#286:E       (ab|a|c|bcd){1,10}(d*)  ababcd  (0,6)(4,5)(5,6) RE2/Go
#:HA#287:E      (ab|a|c|bcd){2,10}(d*)  ababcd  (0,6)(3,6)(6,6)
:HA#287:E       (ab|a|c|bcd){2,10}(d*)  ababcd  (0,6)(4,5)(5,6) RE2/Go
#:HA#288:E      (ab|a|c|bcd){3,10}(d*)  ababcd  (0,6)(3,6)(6,6)
:HA#288:E       (ab|a|c|bcd){3,10}(d*)  ababcd  (0,6)(4,5)(5,6) RE2/Go
:HA#289:E       (ab|a|c|bcd){4,10}(d*)  ababcd  NOMATCH
#:HA#290:E      (ab|a|c|bcd)*(d*)       ababcd  (0,6)(3,6)(6,6)
:HA#290:E       (ab|a|c|bcd)*(d*)       ababcd  (0,6)(4,5)(5,6) RE2/Go
#:HA#291:E      (ab|a|c|bcd)+(d*)       ababcd  (0,6)(3,6)(6,6)
:HA#291:E       (ab|a|c|bcd)+(d*)       ababcd  (0,6)(4,5)(5,6) RE2/Go