1NOTE implicit vs. explicit repetitions : 2009-02-02 2 3# Glenn Fowler <gsf@research.att.com> 4# conforming matches (column 4) must match one of the following BREs 5# NOMATCH 6# (0,.)\((\(.\),\(.\))(?,?)(\2,\3)\)* 7# (0,.)\((\(.\),\(.\))(\2,\3)(?,?)\)* 8# i.e., each 3-tuple has two identical elements and one (?,?) 9 10NOTE additional repetition tests graciously provided by Chris Kuklewicz www.haskell.org 2009-02-02 11 12:HA#100:E X(.?){0,}Y X1234567Y (0,9)(7,8) 13:HA#101:E X(.?){1,}Y X1234567Y (0,9)(7,8) 14:HA#102:E X(.?){2,}Y X1234567Y (0,9)(7,8) 15:HA#103:E X(.?){3,}Y X1234567Y (0,9)(7,8) 16:HA#104:E X(.?){4,}Y X1234567Y (0,9)(7,8) 17:HA#105:E X(.?){5,}Y X1234567Y (0,9)(7,8) 18:HA#106:E X(.?){6,}Y X1234567Y (0,9)(7,8) 19:HA#107:E X(.?){7,}Y X1234567Y (0,9)(7,8) 20:HA#108:E X(.?){8,}Y X1234567Y (0,9)(8,8) 21#:HA#110:E X(.?){0,8}Y X1234567Y (0,9)(7,8) 22:HA#110:E X(.?){0,8}Y X1234567Y (0,9)(8,8) RE2/Go 23#:HA#111:E X(.?){1,8}Y X1234567Y (0,9)(7,8) 24:HA#111:E X(.?){1,8}Y X1234567Y (0,9)(8,8) RE2/Go 25#:HA#112:E X(.?){2,8}Y X1234567Y (0,9)(7,8) 26:HA#112:E X(.?){2,8}Y X1234567Y (0,9)(8,8) RE2/Go 27#:HA#113:E X(.?){3,8}Y X1234567Y (0,9)(7,8) 28:HA#113:E X(.?){3,8}Y X1234567Y (0,9)(8,8) RE2/Go 29#:HA#114:E X(.?){4,8}Y X1234567Y (0,9)(7,8) 30:HA#114:E X(.?){4,8}Y X1234567Y (0,9)(8,8) RE2/Go 31#:HA#115:E X(.?){5,8}Y X1234567Y (0,9)(7,8) 32:HA#115:E X(.?){5,8}Y X1234567Y (0,9)(8,8) RE2/Go 33#:HA#116:E X(.?){6,8}Y X1234567Y (0,9)(7,8) 34:HA#116:E X(.?){6,8}Y X1234567Y (0,9)(8,8) RE2/Go 35#:HA#117:E X(.?){7,8}Y X1234567Y (0,9)(7,8) 36:HA#117:E X(.?){7,8}Y X1234567Y (0,9)(8,8) RE2/Go 37:HA#118:E X(.?){8,8}Y X1234567Y (0,9)(8,8) 38 39# These test a fixed bug in my regex-tdfa that did not keep the expanded 40# form properly grouped, so right association did the wrong thing with 41# these ambiguous patterns (crafted just to test my code when I became 42# suspicious of my implementation). The first subexpression should use 43# "ab" then "a" then "bcd". 44 45# OS X / FreeBSD / NetBSD badly fail many of these, with impossible 46# results like (0,6)(4,5)(6,6). 47 48:HA#260:E (a|ab|c|bcd){0,}(d*) ababcd (0,1)(0,1)(1,1) 49:HA#261:E (a|ab|c|bcd){1,}(d*) ababcd (0,1)(0,1)(1,1) 50:HA#262:E (a|ab|c|bcd){2,}(d*) ababcd (0,6)(3,6)(6,6) 51:HA#263:E (a|ab|c|bcd){3,}(d*) ababcd (0,6)(3,6)(6,6) 52:HA#264:E (a|ab|c|bcd){4,}(d*) ababcd NOMATCH 53:HA#265:E (a|ab|c|bcd){0,10}(d*) ababcd (0,1)(0,1)(1,1) 54:HA#266:E (a|ab|c|bcd){1,10}(d*) ababcd (0,1)(0,1)(1,1) 55:HA#267:E (a|ab|c|bcd){2,10}(d*) ababcd (0,6)(3,6)(6,6) 56:HA#268:E (a|ab|c|bcd){3,10}(d*) ababcd (0,6)(3,6)(6,6) 57:HA#269:E (a|ab|c|bcd){4,10}(d*) ababcd NOMATCH 58:HA#270:E (a|ab|c|bcd)*(d*) ababcd (0,1)(0,1)(1,1) 59:HA#271:E (a|ab|c|bcd)+(d*) ababcd (0,1)(0,1)(1,1) 60 61# The above worked on Linux/GLIBC but the following often fail. 62# They also trip up OS X / FreeBSD / NetBSD: 63 64#:HA#280:E (ab|a|c|bcd){0,}(d*) ababcd (0,6)(3,6)(6,6) 65:HA#280:E (ab|a|c|bcd){0,}(d*) ababcd (0,6)(4,5)(5,6) RE2/Go 66#:HA#281:E (ab|a|c|bcd){1,}(d*) ababcd (0,6)(3,6)(6,6) 67:HA#281:E (ab|a|c|bcd){1,}(d*) ababcd (0,6)(4,5)(5,6) RE2/Go 68#:HA#282:E (ab|a|c|bcd){2,}(d*) ababcd (0,6)(3,6)(6,6) 69:HA#282:E (ab|a|c|bcd){2,}(d*) ababcd (0,6)(4,5)(5,6) RE2/Go 70#:HA#283:E (ab|a|c|bcd){3,}(d*) ababcd (0,6)(3,6)(6,6) 71:HA#283:E (ab|a|c|bcd){3,}(d*) ababcd (0,6)(4,5)(5,6) RE2/Go 72:HA#284:E (ab|a|c|bcd){4,}(d*) ababcd NOMATCH 73#:HA#285:E (ab|a|c|bcd){0,10}(d*) ababcd (0,6)(3,6)(6,6) 74:HA#285:E (ab|a|c|bcd){0,10}(d*) ababcd (0,6)(4,5)(5,6) RE2/Go 75#:HA#286:E (ab|a|c|bcd){1,10}(d*) ababcd (0,6)(3,6)(6,6) 76:HA#286:E (ab|a|c|bcd){1,10}(d*) ababcd (0,6)(4,5)(5,6) RE2/Go 77#:HA#287:E (ab|a|c|bcd){2,10}(d*) ababcd (0,6)(3,6)(6,6) 78:HA#287:E (ab|a|c|bcd){2,10}(d*) ababcd (0,6)(4,5)(5,6) RE2/Go 79#:HA#288:E (ab|a|c|bcd){3,10}(d*) ababcd (0,6)(3,6)(6,6) 80:HA#288:E (ab|a|c|bcd){3,10}(d*) ababcd (0,6)(4,5)(5,6) RE2/Go 81:HA#289:E (ab|a|c|bcd){4,10}(d*) ababcd NOMATCH 82#:HA#290:E (ab|a|c|bcd)*(d*) ababcd (0,6)(3,6)(6,6) 83:HA#290:E (ab|a|c|bcd)*(d*) ababcd (0,6)(4,5)(5,6) RE2/Go 84#:HA#291:E (ab|a|c|bcd)+(d*) ababcd (0,6)(3,6)(6,6) 85:HA#291:E (ab|a|c|bcd)+(d*) ababcd (0,6)(4,5)(5,6) RE2/Go 86