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# 2.8.2 Regular Expression General Requirement | |
2¦4¦bb*¦abbbc¦ | |
2¦2¦bb*¦ababbbc¦ | |
7¦9¦A#*::¦A:A#:qA::qA#::qA##::q¦ | |
1¦5¦A#*::¦A##::A#::qA::qA#:q¦ | |
# 2.8.3.1.2 BRE Special Characters | |
# GA108 | |
2¦2¦\.¦a.c¦ | |
2¦2¦\[¦a[c¦ | |
2¦2¦\\¦a\c¦ | |
2¦2¦\*¦a*c¦ | |
2¦2¦\^¦a^c¦ | |
2¦2¦\$¦a$c¦ | |
7¦11¦X\*Y\*8¦Y*8X*8X*Y*8¦ | |
# GA109 | |
2¦2¦[.]¦a.c¦ | |
2¦2¦[[]¦a[c¦ | |
-1¦-1¦[[]¦ac¦ | |
2¦2¦[\]¦a\c¦ | |
1¦1¦[\a]¦abc¦ | |
2¦2¦[\.]¦a\.c¦ | |
2¦2¦[\.]¦a.\c¦ | |
2¦2¦[*]¦a*c¦ | |
2¦2¦[$]¦a$c¦ | |
2¦2¦[X*Y8]¦7*8YX¦ | |
# GA110 | |
2¦2¦*¦a*c¦ | |
3¦4¦*a¦*b*a*c¦ | |
1¦5¦**9=¦***9=9¦ | |
# GA111 | |
1¦1¦^*¦*bc¦ | |
-1¦-1¦^*¦a*c¦ | |
-1¦-1¦^*¦^*ab¦ | |
1¦5¦^**9=¦***9=¦ | |
-1¦-1¦^*5<*9¦5<9*5<*9¦ | |
# GA112 | |
2¦3¦\(*b\)¦a*b¦ | |
-1¦-1¦\(*b\)¦ac¦ | |
1¦6¦A\(**9\)=¦A***9=79¦ | |
# GA113(1) | |
1¦3¦\(^*ab\)¦*ab¦ | |
-1¦-1¦\(^*ab\)¦^*ab¦ | |
-1¦-1¦\(^*b\)¦a*b¦ | |
-1¦-1¦\(^*b\)¦^*b¦ | |
### GA113(2) GNU regex implements GA113(1) | |
##-1¦-1¦\(^*ab\)¦*ab¦ | |
##-1¦-1¦\(^*ab\)¦^*ab¦ | |
##1¦1¦\(^*b\)¦b¦ | |
##1¦3¦\(^*b\)¦^^b¦ | |
# GA114 | |
1¦3¦a^b¦a^b¦ | |
1¦3¦a\^b¦a^b¦ | |
1¦1¦^^¦^bc¦ | |
2¦2¦\^¦a^c¦ | |
1¦1¦[c^b]¦^abc¦ | |
1¦1¦[\^ab]¦^ab¦ | |
2¦2¦[\^ab]¦c\d¦ | |
-1¦-1¦[^^]¦^¦ | |
1¦3¦\(a^b\)¦a^b¦ | |
1¦3¦\(a\^b\)¦a^b¦ | |
2¦2¦\(\^\)¦a^b¦ | |
# GA115 | |
3¦3¦$$¦ab$¦ | |
-1¦-1¦$$¦$ab¦ | |
2¦3¦$c¦a$c¦ | |
2¦2¦[$]¦a$c¦ | |
1¦2¦\$a¦$a¦ | |
3¦3¦\$$¦ab$¦ | |
2¦6¦A\([34]$[34]\)B¦XA4$3BY¦ | |
# 2.8.3.1.3 Periods in BREs | |
# GA116 | |
1¦1¦.¦abc¦ | |
-1¦-1¦.ab¦abc¦ | |
1¦3¦ab.¦abc¦ | |
1¦3¦a.b¦a,b¦ | |
-1¦-1¦.......¦PqRs6¦ | |
1¦7¦.......¦PqRs6T8¦ | |
# 2.8.3.2 RE Bracket Expression | |
# GA118 | |
2¦2¦[abc]¦xbyz¦ | |
-1¦-1¦[abc]¦xyz¦ | |
2¦2¦[abc]¦xbay¦ | |
# GA119 | |
2¦2¦[^a]¦abc¦ | |
4¦4¦[^]cd]¦cd]ef¦ | |
2¦2¦[^abc]¦axyz¦ | |
-1¦-1¦[^abc]¦abc¦ | |
3¦3¦[^[.a.]b]¦abc¦ | |
3¦3¦[^[=a=]b]¦abc¦ | |
2¦2¦[^-ac]¦abcde-¦ | |
2¦2¦[^ac-]¦abcde-¦ | |
3¦3¦[^a-b]¦abcde¦ | |
3¦3¦[^a-bd-e]¦dec¦ | |
2¦2¦[^---]¦-ab¦ | |
16¦16¦[^a-zA-Z0-9]¦pqrstVWXYZ23579#¦ | |
# GA120(1) | |
3¦3¦[]a]¦cd]ef¦ | |
1¦1¦[]-a]¦a_b¦ | |
3¦3¦[][.-.]-0]¦ab0-]¦ | |
1¦1¦[]^a-z]¦string¦ | |
# GA120(2) | |
4¦4¦[^]cd]¦cd]ef¦ | |
0¦0¦[^]]*¦]]]]]]]]X¦ | |
0¦0¦[^]]*¦]]]]]]]]¦ | |
9¦9¦[^]]\{1,\}¦]]]]]]]]X¦ | |
-1¦-1¦[^]]\{1,\}¦]]]]]]]]¦ | |
# GA120(3) | |
3¦3¦[c[.].]d]¦ab]cd¦ | |
2¦8¦[a-z]*[[.].]][A-Z]*¦Abcd]DEFg¦ | |
# GA121 | |
2¦2¦[[.a.]b]¦Abc¦ | |
1¦1¦[[.a.]b]¦aBc¦ | |
-1¦-1¦[[.a.]b]¦ABc¦ | |
3¦3¦[^[.a.]b]¦abc¦ | |
3¦3¦[][.-.]-0]¦ab0-]¦ | |
3¦3¦[A-[.].]c]¦ab]!¦ | |
# GA122 | |
-2¦-2¦[[.ch.]]¦abc¦ | |
-2¦-2¦[[.ab.][.CD.][.EF.]]¦yZabCDEFQ9¦ | |
# GA125 | |
2¦2¦[[=a=]b]¦Abc¦ | |
1¦1¦[[=a=]b]¦aBc¦ | |
-1¦-1¦[[=a=]b]¦ABc¦ | |
3¦3¦[^[=a=]b]¦abc¦ | |
# GA126 | |
#W the expected result for [[:alnum:]]* is 2-7 which is wrong | |
0¦0¦[[:alnum:]]*¦ aB28gH¦ | |
2¦7¦[[:alnum:]][[:alnum:]]*¦ aB28gH¦ | |
#W the expected result for [^[:alnum:]]* is 2-5 which is wrong | |
0¦0¦[^[:alnum:]]*¦2 ,a¦ | |
2¦5¦[^[:alnum:]][^[:alnum:]]*¦2 ,a¦ | |
#W the expected result for [[:alpha:]]* is 2-5 which is wrong | |
0¦0¦[[:alpha:]]*¦ aBgH2¦ | |
2¦5¦[[:alpha:]][[:alpha:]]*¦ aBgH2¦ | |
1¦6¦[^[:alpha:]]*¦2 8,a¦ | |
1¦2¦[[:blank:]]*¦ ¦ | |
1¦8¦[^[:blank:]]*¦aB28gH, ¦ | |
1¦2¦[[:cntrl:]]*¦ ¦ | |
1¦8¦[^[:cntrl:]]*¦aB2 8gh,¦ | |
#W the expected result for [[:digit:]]* is 2-3 which is wrong | |
0¦0¦[[:digit:]]*¦a28¦ | |
2¦3¦[[:digit:]][[:digit:]]*¦a28¦ | |
1¦8¦[^[:digit:]]*¦aB gH,¦ | |
1¦7¦[[:graph:]]*¦aB28gH, ¦ | |
1¦3¦[^[:graph:]]*¦ ,¦ | |
1¦2¦[[:lower:]]*¦agB¦ | |
1¦8¦[^[:lower:]]*¦B2 8H,a¦ | |
1¦8¦[[:print:]]*¦aB2 8gH, ¦ | |
1¦2¦[^[:print:]]*¦ ¦ | |
#W the expected result for [[:punct:]]* is 2-2 which is wrong | |
0¦0¦[[:punct:]]*¦a,2¦ | |
2¦3¦[[:punct:]][[:punct:]]*¦a,,2¦ | |
1¦9¦[^[:punct:]]*¦aB2 8gH¦ | |
1¦3¦[[:space:]]*¦ ¦ | |
#W the expected result for [^[:space:]]* is 2-9 which is wrong | |
0¦0¦[^[:space:]]*¦ aB28gH, ¦ | |
2¦9¦[^[:space:]][^[:space:]]*¦ aB28gH, ¦ | |
#W the expected result for [[:upper:]]* is 2-3 which is wrong | |
0¦0¦[[:upper:]]*¦aBH2¦ | |
2¦3¦[[:upper:]][[:upper:]]*¦aBH2¦ | |
1¦8¦[^[:upper:]]*¦a2 8g,B¦ | |
#W the expected result for [[:xdigit:]]* is 2-5 which is wrong | |
0¦0¦[[:xdigit:]]*¦gaB28h¦ | |
2¦5¦[[:xdigit:]][[:xdigit:]]*¦gaB28h¦ | |
#W the expected result for [^[:xdigit:]]* is 2-7 which is wrong | |
2¦7¦[^[:xdigit:]][^[:xdigit:]]*¦a gH,2¦ | |
# GA127 | |
-2¦-2¦[b-a]¦abc¦ | |
1¦1¦[a-c]¦bbccde¦ | |
2¦2¦[a-b]¦-bc¦ | |
3¦3¦[a-z0-9]¦AB0¦ | |
3¦3¦[^a-b]¦abcde¦ | |
3¦3¦[^a-bd-e]¦dec¦ | |
1¦1¦[]-a]¦a_b¦ | |
2¦2¦[+--]¦a,b¦ | |
2¦2¦[--/]¦a.b¦ | |
2¦2¦[^---]¦-ab¦ | |
3¦3¦[][.-.]-0]¦ab0-]¦ | |
3¦3¦[A-[.].]c]¦ab]!¦ | |
2¦6¦bc[d-w]xy¦abchxyz¦ | |
# GA129 | |
1¦1¦[a-cd-f]¦dbccde¦ | |
-1¦-1¦[a-ce-f]¦dBCCdE¦ | |
2¦4¦b[n-zA-M]Y¦absY9Z¦ | |
2¦4¦b[n-zA-M]Y¦abGY9Z¦ | |
# GA130 | |
3¦3¦[-xy]¦ac-¦ | |
2¦4¦c[-xy]D¦ac-D+¦ | |
2¦2¦[--/]¦a.b¦ | |
2¦4¦c[--/]D¦ac.D+b¦ | |
2¦2¦[^-ac]¦abcde-¦ | |
1¦3¦a[^-ac]c¦abcde-¦ | |
3¦3¦[xy-]¦zc-¦ | |
2¦4¦c[xy-]7¦zc-786¦ | |
2¦2¦[^ac-]¦abcde-¦ | |
2¦4¦a[^ac-]c¦5abcde-¦ | |
2¦2¦[+--]¦a,b¦ | |
2¦4¦a[+--]B¦Xa,By¦ | |
2¦2¦[^---]¦-ab¦ | |
4¦6¦X[^---]Y¦X-YXaYXbY¦ | |
# 2.8.3.3 BREs Matching Multiple Characters | |
# GA131 | |
3¦4¦cd¦abcdeabcde¦ | |
1¦2¦ag*b¦abcde¦ | |
-1¦-1¦[a-c][e-f]¦abcdef¦ | |
3¦4¦[a-c][e-f]¦acbedf¦ | |
4¦8¦abc*XYZ¦890abXYZ#*¦ | |
4¦9¦abc*XYZ¦890abcXYZ#*¦ | |
4¦15¦abc*XYZ¦890abcccccccXYZ#*¦ | |
-1¦-1¦abc*XYZ¦890abc*XYZ#*¦ | |
# GA132 | |
2¦4¦\(*bc\)¦a*bc¦ | |
1¦2¦\(ab\)¦abcde¦ | |
1¦10¦\(a\(b\(c\(d\(e\(f\(g\)h\(i\(j\)\)\)\)\)\)\)\)¦abcdefghijk¦ | |
3¦8¦43\(2\(6\)*0\)AB¦654320ABCD¦ | |
3¦9¦43\(2\(7\)*0\)AB¦6543270ABCD¦ | |
3¦12¦43\(2\(7\)*0\)AB¦6543277770ABCD¦ | |
# GA133 | |
1¦10¦\(a\(b\(c\(d\(e\(f\(g\)h\(i\(j\)\)\)\)\)\)\)\)¦abcdefghijk¦ | |
-1¦-1¦\(a\(b\(c\(d\(e\(f\(g\)h\(i\(k\)\)\)\)\)\)\)\)¦abcdefghijk¦ | |
# GA134 | |
2¦4¦\(bb*\)¦abbbc¦ | |
2¦2¦\(bb*\)¦ababbbc¦ | |
1¦6¦a\(.*b\)¦ababbbc¦ | |
1¦2¦a\(b*\)¦ababbbc¦ | |
1¦20¦a\(.*b\)c¦axcaxbbbcsxbbbbbbbbc¦ | |
# GA135 | |
1¦7¦\(a\(b\(c\(d\(e\)\)\)\)\)\4¦abcdededede¦ | |
#W POSIX does not really specify whether a\(b\)*c\1 matches acb. | |
#W back references are supposed to expand to the last match, but what | |
#W if there never was a match as in this case? | |
-1¦-1¦a\(b\)*c\1¦acb¦ | |
1¦11¦\(a\(b\(c\(d\(e\(f\(g\)h\(i\(j\)\)\)\)\)\)\)\)\9¦abcdefghijjk¦ | |
# GA136 | |
#W These two tests have the same problem as the test in GA135. No match | |
#W of a subexpression, why should the back reference be usable? | |
#W 1 2 a\(b\)*c\1 acb | |
#W 4 7 a\(b\(c\(d\(f\)*\)\)\)\4¦xYzabcdePQRST | |
-1¦-1¦a\(b\)*c\1¦acb¦ | |
-1¦-1¦a\(b\(c\(d\(f\)*\)\)\)\4¦xYzabcdePQRST¦ | |
# GA137 | |
-2¦-2¦\(a\(b\)\)\3¦foo¦ | |
-2¦-2¦\(a\(b\)\)\(a\(b\)\)\5¦foo¦ | |
# GA138 | |
1¦2¦ag*b¦abcde¦ | |
1¦10¦a.*b¦abababvbabc¦ | |
2¦5¦b*c¦abbbcdeabbbbbbcde¦ | |
2¦5¦bbb*c¦abbbcdeabbbbbbcde¦ | |
1¦5¦a\(b\)*c\1¦abbcbbb¦ | |
-1¦-1¦a\(b\)*c\1¦abbdbd¦ | |
0¦0¦\([a-c]*\)\1¦abcacdef¦ | |
1¦6¦\([a-c]*\)\1¦abcabcabcd¦ | |
1¦2¦a^*b¦ab¦ | |
1¦5¦a^*b¦a^^^b¦ | |
# GA139 | |
1¦2¦a\{2\}¦aaaa¦ | |
1¦7¦\([a-c]*\)\{0,\}¦aabcaab¦ | |
1¦2¦\(a\)\1\{1,2\}¦aabc¦ | |
1¦3¦\(a\)\1\{1,2\}¦aaaabc¦ | |
#W the expression \(\(a\)\1\)\{1,2\} is ill-formed, using \2 | |
1¦4¦\(\(a\)\2\)\{1,2\}¦aaaabc¦ | |
# GA140 | |
1¦2¦a\{2\}¦aaaa¦ | |
-1¦-1¦a\{2\}¦abcd¦ | |
0¦0¦a\{0\}¦aaaa¦ | |
1¦64¦a\{64\}¦aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa¦ | |
# GA141 | |
1¦7¦\([a-c]*\)\{0,\}¦aabcaab¦ | |
#W the expected result for \([a-c]*\)\{2,\} is failure which isn't correct | |
1¦3¦\([a-c]*\)\{2,\}¦abcdefg¦ | |
1¦3¦\([a-c]*\)\{1,\}¦abcdefg¦ | |
-1¦-1¦a\{64,\}¦aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa¦ | |
# GA142 | |
1¦3¦a\{2,3\}¦aaaa¦ | |
-1¦-1¦a\{2,3\}¦abcd¦ | |
0¦0¦\([a-c]*\)\{0,0\}¦foo¦ | |
1¦63¦a\{1,63\}¦aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa¦ | |
# 2.8.3.4 BRE Precedence | |
# GA143 | |
#W There are numerous bugs in the original version. | |
2¦19¦\^\[[[.].]]\\(\\1\\)\*\\{1,2\\}\$¦a^[]\(\1\)*\{1,2\}$b¦ | |
1¦6¦[[=*=]][[=\=]][[=]=]][[===]][[...]][[:punct:]]¦*\]=.;¦ | |
1¦6¦[$\(*\)^]*¦$\()*^¦ | |
1¦1¦[\1]¦1¦ | |
1¦1¦[\{1,2\}]¦{¦ | |
#W the expected result for \(*\)*\1* is 2-2 which isn't correct | |
0¦0¦\(*\)*\1*¦a*b*11¦ | |
2¦3¦\(*\)*\1*b¦a*b*11¦ | |
#W the expected result for \(a\(b\{1,2\}\)\{1,2\}\) is 1-5 which isn't correct | |
1¦3¦\(a\(b\{1,2\}\)\{1,2\}\)¦abbab¦ | |
1¦5¦\(a\(b\{1,2\}\)\)\{1,2\}¦abbab¦ | |
1¦1¦^\(^\(^a$\)$\)$¦a¦ | |
1¦2¦\(a\)\1$¦aa¦ | |
1¦3¦ab*¦abb¦ | |
1¦4¦ab\{2,4\}¦abbbc¦ | |
# 2.8.3.5 BRE Expression Anchoring | |
# GA144 | |
1¦1¦^a¦abc¦ | |
-1¦-1¦^b¦abc¦ | |
-1¦-1¦^[a-zA-Z]¦99Nine¦ | |
1¦4¦^[a-zA-Z]*¦Nine99¦ | |
# GA145(1) | |
1¦2¦\(^a\)\1¦aabc¦ | |
-1¦-1¦\(^a\)\1¦^a^abc¦ | |
1¦2¦\(^^a\)¦^a¦ | |
1¦1¦\(^^\)¦^^¦ | |
1¦3¦\(^abc\)¦abcdef¦ | |
-1¦-1¦\(^def\)¦abcdef¦ | |
### GA145(2) GNU regex implements GA145(1) | |
##-1¦-1¦\(^a\)\1¦aabc¦ | |
##1¦4¦\(^a\)\1¦^a^abc¦ | |
##-1¦-1¦\(^^a\)¦^a¦ | |
##1¦2¦\(^^\)¦^^¦ | |
# GA146 | |
3¦3¦a$¦cba¦ | |
-1¦-1¦a$¦abc¦ | |
5¦7¦[a-z]*$¦99ZZxyz¦ | |
#W the expected result for [a-z]*$ is failure which isn't correct | |
10¦9¦[a-z]*$¦99ZZxyz99¦ | |
3¦3¦$$¦ab$¦ | |
-1¦-1¦$$¦$ab¦ | |
3¦3¦\$$¦ab$¦ | |
# GA147(1) | |
-1¦-1¦\(a$\)\1¦bcaa¦ | |
-1¦-1¦\(a$\)\1¦ba$¦ | |
-1¦-1¦\(ab$\)¦ab$¦ | |
1¦2¦\(ab$\)¦ab¦ | |
4¦6¦\(def$\)¦abcdef¦ | |
-1¦-1¦\(abc$\)¦abcdef¦ | |
### GA147(2) GNU regex implements GA147(1) | |
##-1¦-1¦\(a$\)\1¦bcaa¦ | |
##2¦5¦\(a$\)\1¦ba$a$¦ | |
##-1¦-1¦\(ab$\)¦ab¦ | |
##1¦3¦\(ab$\)¦ab$¦ | |
# GA148 | |
0¦0¦^$¦¦ | |
1¦3¦^abc$¦abc¦ | |
-1¦-1¦^xyz$¦^xyz^¦ | |
-1¦-1¦^234$¦^234$¦ | |
1¦9¦^[a-zA-Z0-9]*$¦2aA3bB9zZ¦ | |
-1¦-1¦^[a-z0-9]*$¦2aA3b#B9zZ¦ |