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# 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[[: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:]]+ - -%@aÄX- aÄX
[[: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
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
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