# regular expression test set # Lines are at least three fields, separated by one or more tabs. "" stands # for an empty field. First field is an RE. Second field is flags. If # C flag given, regcomp() is expected to fail, and the third field is the # error name (minus the leading REG_). # # Otherwise it is expected to succeed, and the third field is the string to # try matching it against. If there is no fourth field, the match is # expected to fail. If there is a fourth field, it is the substring that # the RE is expected to match. If there is a fifth field, it is a comma- # separated list of what the subexpressions should match, with - indicating # no match for that one. In both the fourth and fifth fields, a (sub)field # starting with @ indicates that the (sub)expression is expected to match # a null string followed by the stuff after the @; this provides a way to # test where null strings match. The character `N' in REs and strings # is newline, `S' is space, `T' is tab, `Z' is NUL. # # The full list of flags: # - placeholder, does nothing # b RE is a BRE, not an ERE # & try it as both an ERE and a BRE # C regcomp() error expected, third field is error name # i REG_ICASE # m ("mundane") REG_NOSPEC # s REG_NOSUB (not really testable) # n REG_NEWLINE # ^ REG_NOTBOL # $ REG_NOTEOL # # REG_STARTEND (see below) # p REG_PEND # # For REG_STARTEND, the start/end offsets are those of the substring # enclosed in (). # basics a & a a abc & abc abc abc|de - abc abc a|b|c - abc a # parentheses and perversions thereof a(b)c - abc abc a\(b\)c b abc abc a( C EPAREN a( b a( a( a\( - a( a( a\( bC EPAREN a\(b bC EPAREN a(b C EPAREN a(b b a(b a(b # gag me with a right parenthesis -- 1003.2 goofed here (my fault, partly) a) - a) a) ) - ) ) # end gagging (in a just world, those *should* give EPAREN) a) b a) a) a\) bC EPAREN \) bC EPAREN a()b - ab ab a\(\)b b ab ab # anchoring and REG_NEWLINE ^abc$ & abc abc a^b - a^b a^b b a^b a^b a$b - a$b a$b b a$b a$b ^ & abc @abc $ & abc @ ^$ & "" @ $^ - "" @ \($\)\(^\) b "" @ # stop retching, those are legitimate (although disgusting) ^^ - "" @ $$ - "" @ b$ & abNc b$ &n abNc b ^b$ & aNbNc ^b$ &n aNbNc b ^$ &n aNNb @Nb ^$ n abc ^$ n abcN @ $^ n aNNb @Nb \($\)\(^\) bn aNNb @Nb ^^ n^ aNNb @Nb $$ n aNNb @NN ^a ^ a a$ $ a ^a ^n aNb ^b ^n aNb b a$ $n bNa b$ $n bNa b a*(^b$)c* - b b a*\(^b$\)c* b b b # certain syntax errors and non-errors | C EMPTY | b | | * C BADRPT * b * * + C BADRPT ? C BADRPT "" &C EMPTY () - abc @abc \(\) b abc @abc a||b C EMPTY |ab C EMPTY ab| C EMPTY (|a)b C EMPTY (a|)b C EMPTY (*a) C BADRPT (+a) C BADRPT (?a) C BADRPT ({1}a) C BADRPT \(\{1\}a\) bC BADRPT (a|*b) C BADRPT (a|+b) C BADRPT (a|?b) C BADRPT (a|{1}b) C BADRPT ^* C BADRPT ^* b * * ^+ C BADRPT ^? C BADRPT ^{1} C BADRPT ^\{1\} bC BADRPT # metacharacters, backslashes a.c & abc abc a[bc]d & abd abd a\*c & a*c a*c a\\b & a\b a\b a\\\*b & a\*b a\*b a\bc & abc abc a\ &C EESCAPE a\\bc & a\bc a\bc \{ bC BADRPT a\[b & a[b a[b a[b &C EBRACK # trailing $ is a peculiar special case for the BRE code a$ & a a a$ & a$ a\$ & a a\$ & a$ a$ a\\$ & a a\\$ & a$ a\\$ & a\$ a\\$ & a\ a\ # back references, ugh a\(b\)\2c bC ESUBREG a\(b\1\)c bC ESUBREG a\(b*\)c\1d b abbcbbd abbcbbd bb a\(b*\)c\1d b abbcbd a\(b*\)c\1d b abbcbbbd ^\(.\)\1 b abc a\([bc]\)\1d b abcdabbd abbd b a\(\([bc]\)\2\)*d b abbccd abbccd a\(\([bc]\)\2\)*d b abbcbd # actually, this next one probably ought to fail, but the spec is unclear a\(\(b\)*\2\)*d b abbbd abbbd # here is a case that no NFA implementation does right \(ab*\)[ab]*\1 b ababaaa ababaaa a # check out normal matching in the presence of back refs \(a\)\1bcd b aabcd aabcd \(a\)\1bc*d b aabcd aabcd \(a\)\1bc*d b aabd aabd \(a\)\1bc*d b aabcccd aabcccd \(a\)\1bc*[ce]d b aabcccd aabcccd ^\(a\)\1b\(c\)*cd$ b aabcccd aabcccd # ordinary repetitions ab*c & abc abc ab+c - abc abc ab?c - abc abc a\(*\)b b a*b a*b a\(**\)b b ab ab a\(***\)b bC BADRPT *a b *a *a **a b a a ***a bC BADRPT # the dreaded bounded repetitions { & { { {abc & {abc {abc {1 C BADRPT {1} C BADRPT a{b & a{b a{b a{1}b - ab ab a\{1\}b b ab ab a{1,}b - ab ab a\{1,\}b b ab ab a{1,2}b - aab aab a\{1,2\}b b aab aab a{1 C EBRACE a\{1 bC EBRACE a{1a C EBRACE a\{1a bC EBRACE a{1a} C BADBR a\{1a\} bC BADBR a{,2} - a{,2} a{,2} a\{,2\} bC BADBR a{,} - a{,} a{,} a\{,\} bC BADBR a{1,x} C BADBR a\{1,x\} bC BADBR a{1,x C EBRACE a\{1,x bC EBRACE a{300} C BADBR a\{300\} bC BADBR a{1,0} C BADBR a\{1,0\} bC BADBR ab{0,0}c - abcac ac ab\{0,0\}c b abcac ac ab{0,1}c - abcac abc ab\{0,1\}c b abcac abc ab{0,3}c - abbcac abbc ab\{0,3\}c b abbcac abbc ab{1,1}c - acabc abc ab\{1,1\}c b acabc abc ab{1,3}c - acabc abc ab\{1,3\}c b acabc abc ab{2,2}c - abcabbc abbc ab\{2,2\}c b abcabbc abbc ab{2,4}c - abcabbc abbc ab\{2,4\}c b abcabbc abbc ((a{1,10}){1,10}){1,10} - a a a,a # multiple repetitions a** &C BADRPT a++ C BADRPT a?? C BADRPT a*+ C BADRPT a*? C BADRPT a+* C BADRPT a+? C BADRPT a?* C BADRPT a?+ C BADRPT a{1}{1} C BADRPT a*{1} C BADRPT a+{1} C BADRPT a?{1} C BADRPT a{1}* C BADRPT a{1}+ C BADRPT a{1}? C BADRPT a*{b} - a{b} a{b} a\{1\}\{1\} bC BADRPT a*\{1\} bC BADRPT a\{1\}* bC BADRPT # brackets, and numerous perversions thereof a[b]c & abc abc a[ab]c & abc abc a[^ab]c & adc adc a[]b]c & a]c a]c a[[b]c & a[c a[c a[-b]c & a-c a-c a[^]b]c & adc adc a[^-b]c & adc adc a[b-]c & a-c a-c a[b &C EBRACK a[] &C EBRACK a[1-3]c & a2c a2c a[3-1]c &C ERANGE a[1-3-5]c &C ERANGE a[[.-.]--]c & a-c a-c a[1- &C ERANGE a[[. &C EBRACK a[[.x &C EBRACK a[[.x. &C EBRACK a[[.x.] &C EBRACK a[[.x.]] & ax ax a[[.x,.]] &C ECOLLATE a[[.one.]]b & a1b a1b a[[.notdef.]]b &C ECOLLATE a[[.].]]b & a]b a]b a[[:alpha:]]c & abc abc a[[:notdef:]]c &C ECTYPE a[[: &C EBRACK a[[:alpha &C EBRACK a[[:alpha:] &C EBRACK a[[:alpha,:] &C ECTYPE a[[:]:]]b &C ECTYPE a[[:-:]]b &C ECTYPE a[[:alph:]] &C ECTYPE a[[:alphabet:]] &C ECTYPE [[:alnum:]]+ - -%@a0X- a0X [[:alpha:]]+ - -%@aX0- aX [[:blank:]]+ - aSSTb SST [[:cntrl:]]+ - aNTb NT [[:digit:]]+ - a019b 019 [[:graph:]]+ - Sa%bS a%b [[:lower:]]+ - AabC ab [[:print:]]+ - NaSbN aSb [[:punct:]]+ - S%-&T %-& [[:space:]]+ - aSNTb SNT [[:upper:]]+ - aBCd BC [[:xdigit:]]+ - p0f3Cq 0f3C a[[=b=]]c & abc abc a[[= &C EBRACK a[[=b &C EBRACK a[[=b= &C EBRACK a[[=b=] &C EBRACK a[[=b,=]] &C ECOLLATE a[[=one=]]b & a1b a1b # complexities a(((b)))c - abc abc a(b|(c))d - abd abd a(b*|c)d - abbd abbd # just gotta have one DFA-buster, of course a[ab]{20} - aaaaabaaaabaaaabaaaab aaaaabaaaabaaaabaaaab # and an inline expansion in case somebody gets tricky a[ab][ab][ab][ab][ab][ab][ab][ab][ab][ab][ab][ab][ab][ab][ab][ab][ab][ab][ab][ab] - aaaaabaaaabaaaabaaaab aaaaabaaaabaaaabaaaab # and in case somebody just slips in an NFA... a[ab][ab][ab][ab][ab][ab][ab][ab][ab][ab][ab][ab][ab][ab][ab][ab][ab][ab][ab][ab](wee|week)(knights|night) - aaaaabaaaabaaaabaaaabweeknights aaaaabaaaabaaaabaaaabweeknights # fish for anomalies as the number of states passes 32 12345678901234567890123456789 - a12345678901234567890123456789b 12345678901234567890123456789 123456789012345678901234567890 - a123456789012345678901234567890b 123456789012345678901234567890 1234567890123456789012345678901 - a1234567890123456789012345678901b 1234567890123456789012345678901 12345678901234567890123456789012 - a12345678901234567890123456789012b 12345678901234567890123456789012 123456789012345678901234567890123 - a123456789012345678901234567890123b 123456789012345678901234567890123 # and one really big one, beyond any plausible word width 1234567890123456789012345678901234567890123456789012345678901234567890 - a1234567890123456789012345678901234567890123456789012345678901234567890b 1234567890123456789012345678901234567890123456789012345678901234567890 # fish for problems as brackets go past 8 [ab][cd][ef][gh][ij][kl][mn] - xacegikmoq acegikm [ab][cd][ef][gh][ij][kl][mn][op] - xacegikmoq acegikmo [ab][cd][ef][gh][ij][kl][mn][op][qr] - xacegikmoqy acegikmoq [ab][cd][ef][gh][ij][kl][mn][op][q] - xacegikmoqy acegikmoq # subtleties of matching abc & xabcy abc a\(b\)?c\1d b acd aBc i Abc Abc a[Bc]*d i abBCcd abBCcd 0[[:upper:]]1 &i 0a1 0a1 0[[:lower:]]1 &i 0A1 0A1 a[^b]c &i abc a[^b]c &i aBc a[^b]c &i adc adc [a]b[c] - abc abc [a]b[a] - aba aba [abc]b[abc] - abc abc [abc]b[abd] - abd abd a(b?c)+d - accd accd (wee|week)(knights|night) - weeknights weeknights (we|wee|week|frob)(knights|night|day) - weeknights weeknights a[bc]d - xyzaaabcaababdacd abd a[ab]c - aaabc abc abc s abc abc a* & b @b # Let's have some fun -- try to match a C comment. # first the obvious, which looks okay at first glance... /\*.*\*/ - /*x*/ /*x*/ # but... /\*.*\*/ - /*x*/y/*z*/ /*x*/y/*z*/ # okay, we must not match */ inside; try to do that... /\*([^*]|\*[^/])*\*/ - /*x*/ /*x*/ /\*([^*]|\*[^/])*\*/ - /*x*/y/*z*/ /*x*/ # but... /\*([^*]|\*[^/])*\*/ - /*x**/y/*z*/ /*x**/y/*z*/ # and a still fancier version, which does it right (I think)... /\*([^*]|\*+[^*/])*\*+/ - /*x*/ /*x*/ /\*([^*]|\*+[^*/])*\*+/ - /*x*/y/*z*/ /*x*/ /\*([^*]|\*+[^*/])*\*+/ - /*x**/y/*z*/ /*x**/ /\*([^*]|\*+[^*/])*\*+/ - /*x****/y/*z*/ /*x****/ /\*([^*]|\*+[^*/])*\*+/ - /*x**x*/y/*z*/ /*x**x*/ /\*([^*]|\*+[^*/])*\*+/ - /*x***x/y/*z*/ /*x***x/y/*z*/ # subexpressions .* - abc abc - a(b)(c)d - abcd abcd b,c a(((b)))c - abc abc b,b,b a(b|(c))d - abd abd b,- a(b*|c|e)d - abbd abbd bb a(b*|c|e)d - acd acd c a(b*|c|e)d - ad ad @d a(b?)c - abc abc b a(b?)c - ac ac @c a(b+)c - abc abc b a(b+)c - abbbc abbbc bbb a(b*)c - ac ac @c (a|ab)(bc([de]+)f|cde) - abcdef abcdef a,bcdef,de # the regression tester only asks for 9 subexpressions a(b)(c)(d)(e)(f)(g)(h)(i)(j)k - abcdefghijk abcdefghijk b,c,d,e,f,g,h,i,j a(b)(c)(d)(e)(f)(g)(h)(i)(j)(k)l - abcdefghijkl abcdefghijkl b,c,d,e,f,g,h,i,j,k a([bc]?)c - abc abc b a([bc]?)c - ac ac @c a([bc]+)c - abc abc b a([bc]+)c - abcc abcc bc a([bc]+)bc - abcbc abcbc bc a(bb+|b)b - abb abb b a(bbb+|bb+|b)b - abb abb b a(bbb+|bb+|b)b - abbb abbb bb a(bbb+|bb+|b)bb - abbb abbb b (.*).* - abcdef abcdef abcdef (a*)* - bc @b @b # do we get the right subexpression when it is used more than once? a(b|c)*d - ad ad - a(b|c)*d - abcd abcd c a(b|c)+d - abd abd b a(b|c)+d - abcd abcd c a(b|c?)+d - ad ad @d a(b|c?)+d - abcd abcd @d a(b|c){0,0}d - ad ad - a(b|c){0,1}d - ad ad - a(b|c){0,1}d - abd abd b a(b|c){0,2}d - ad ad - a(b|c){0,2}d - abcd abcd c a(b|c){0,}d - ad ad - a(b|c){0,}d - abcd abcd c a(b|c){1,1}d - abd abd b a(b|c){1,1}d - acd acd c a(b|c){1,2}d - abd abd b a(b|c){1,2}d - abcd abcd c a(b|c){1,}d - abd abd b a(b|c){1,}d - abcd abcd c a(b|c){2,2}d - acbd acbd b a(b|c){2,2}d - abcd abcd c a(b|c){2,4}d - abcd abcd c a(b|c){2,4}d - abcbd abcbd b a(b|c){2,4}d - abcbcd abcbcd c a(b|c){2,}d - abcd abcd c a(b|c){2,}d - abcbd abcbd b a(b+|((c)*))+d - abd abd @d,@d,- a(b+|((c)*))+d - abcd abcd @d,@d,- # check out the STARTEND option [abc] &# a(b)c b [abc] &# a(d)c [abc] &# a(bc)d b [abc] &# a(dc)d c . &# a()c b.*c &# b(bc)c bc b.* &# b(bc)c bc .*c &# b(bc)c bc # plain strings, with the NOSPEC flag abc m abc abc abc m xabcy abc abc m xyz a*b m aba*b a*b a*b m ab "" mC EMPTY # cases involving NULs aZb & a a aZb &p a aZb &p# (aZb) aZb aZ*b &p# (ab) ab a.b &# (aZb) aZb a.* &# (aZb)c aZb # word boundaries (ick) [[:<:]]a & a a [[:<:]]a & ba [[:<:]]a & -a a a[[:>:]] & a a a[[:>:]] & ab a[[:>:]] & a- a [[:<:]]a.c[[:>:]] & axcd-dayc-dazce-abc abc [[:<:]]a.c[[:>:]] & axcd-dayc-dazce-abc-q abc [[:<:]]a.c[[:>:]] & axc-dayc-dazce-abc axc [[:<:]]b.c[[:>:]] & a_bxc-byc_d-bzc-q bzc [[:<:]].x..[[:>:]] & y_xa_-_xb_y-_xc_-axdc _xc_ [[:<:]]a_b[[:>:]] & x_a_b # past problems, and suspected problems (A[1])|(A[2])|(A[3])|(A[4])|(A[5])|(A[6])|(A[7])|(A[8])|(A[9])|(A[A]) - A1 A1 abcdefghijklmnop i abcdefghijklmnop abcdefghijklmnop abcdefghijklmnopqrstuv i abcdefghijklmnopqrstuv abcdefghijklmnopqrstuv (ALAK)|(ALT[AB])|(CC[123]1)|(CM[123]1)|(GAMC)|(LC[23][EO ])|(SEM[1234])|(SL[ES][12])|(SLWW)|(SLF )|(SLDT)|(VWH[12])|(WH[34][EW])|(WP1[ESN]) - CC11 CC11 CC[13]1|a{21}[23][EO][123][Es][12]a{15}aa[34][EW]aaaaaaa[X]a - CC11 CC11 Char \([a-z0-9_]*\)\[.* b Char xyz[k Char xyz[k xyz a?b - ab ab -\{0,1\}[0-9]*$ b -5 -5 a*a*a*a*a*a*a* & aaaaaa aaaaaa