java - IPv6 validation -

-

i used ipaddressutil.isipv6literaladdress (ipaddress) method validate ipv6, method fails ipv6-address/prefix-length format (format mentioned in rfc 4291 section 2.3) of ipv6.

could know validators validate " ipv6-address/prefix-length " format?

legal representations of ipv6

  1. abcd:ef01:2345:6789:abcd:ef01:2345:6789
  2. 2001:db8:0:0:8:800:200c:417a
  3. ff01:0:0:0:0:0:0:101
  4. 0:0:0:0:0:0:0:1
  5. 0:0:0:0:0:0:0:0
  6. 2001:db8::8:800:200c:417a
  7. ff01::101
  8. ::1
  9. ::
  10. 0:0:0:0:0:0:13.1.68.3
  11. 0:0:0:0:0:ffff:129.144.52.38
  12. ::13.1.68.3
  13. ffff:129.144.52.38
  14. 2001:0db8:0000:cd30:0000:0000:0000:0000/60
  15. 2001:0db8::cd30:0:0:0:0/60
  16. 2001:0db8:0:cd30::/60

not legal representations of ipv6

  1. 2001:0db8:0:cd3/60
  2. 2001:0db8::cd30/60
  3. 2001:0db8::cd3/60

see if works:

try {     if (subjectstring.matches(         "(?ix)\\a(?:                                                  # anchor address\n" +         " (?:  # mixed\n" +         "  (?:[a-f0-9]{1,4}:){6}                                # non-compressed\n" +         " |(?=(?:[a-f0-9]{0,4}:){2,6}                           # compressed 2 6 colons\n" +         "     (?:[0-9]{1,3}\\.){3}[0-9]{1,3}                     #    , 4 bytes\n" +         "     \\z)                                               #    , anchored\n" +         "  (([0-9a-f]{1,4}:){1,5}|:)((:[0-9a-f]{1,4}){1,5}:|:)  #    , @ 1 double colon\n" +         " |::(?:[a-f0-9]{1,4}:){5}                              # compressed 7 colons , 5 numbers\n" +         " )\n" +         " (?:(?:25[0-5]|2[0-4][0-9]|1[0-9][0-9]|[1-9]?[0-9])\\.){3}  # 255.255.255.\n" +         " (?:25[0-5]|2[0-4][0-9]|1[0-9][0-9]|[1-9]?[0-9])           # 255\n" +         "|     # standard\n" +         " (?:[a-f0-9]{1,4}:){7}[a-f0-9]{1,4}                    # standard\n" +         "|     # compressed\n" +         " (?=(?:[a-f0-9]{0,4}:){0,7}[a-f0-9]{0,4}               # compressed @ 7 colons\n" +         "    \\z)                                                #    , anchored\n" +         " (([0-9a-f]{1,4}:){1,7}|:)((:[0-9a-f]{1,4}){1,7}|:)    #    , @ 1 double colon\n" +         "|(?:[a-f0-9]{1,4}:){7}:|:(:[a-f0-9]{1,4}){7}           # compressed 8 colons\n" +         ")/[a-f0-9]{0,4}\\z                                                    # anchor address"))          {         // string matched entirely     } else {         // match attempt failed     }  } catch (patternsyntaxexception ex) {     // syntax error in regular expression }

i purchased helpful program called regexmagic year ago complicated regular expressions planned on using.

this suppose java, should compile, assume /60 can between ranges of 0000 , ffff can modify last part.

/[a-f0-9]{0,4} added regular expression match example.


Comments

Post a Comment

Popular posts from this blog

Cursor error with postgresql, pgpool and php -

-
hey, struggling bit determine exact cause of error has been popping in our release environment. there not seem dealing particular error on google. this error message getting: sqlstate[34000]: invalid cursor name: 7 error: portal "" not exist the error pops when using pdo prepared statements. this setup our release environment: pgpool 3.0.1 (the postgresql backend in streaming replication mode!) php 5.3.5 postgresql 9.0 edit: architecture 64bit. the same error not manifest in our test environment (edit: forgot mention, standard test environment uses postgresql 9.0 without pgpool). thus, led suspect pgpool @ least partly suspect. does know probable causes error are? edit: ok, here example of kind of code causes error. $sql = 'select * '; $sql .= 'from "mytable" "mystuff" '; $sql .= 'where "mytable"."status" = 1 '; $sql .= 'and "mytable"."mytableid" = :table...
Read more

delphi - ESC/P programming! -

-
why need use because printers using tprinter prints weird hieroglyph @ beginning of printable area. my problem if send commands, nothing happens. esc e (#27 #69) - sending escape sequence didn't work expected. removed first letter , rest of string made bold. eg. hello -> ello . after changed esc e esc (#27 #69 #27), worked fine. example managed figure out, but... trying select character table "esc t n" (#27 #116 n), make "õäöü" work. command doesn't work. nothing happens! , command supported esc/p, esc/p 2 , 9-pin esc/p, should work fine. manual can found here . if has ever needed use esc/p commands maybe 1 can shed light how work them! thanks in advance! edit: in previous post asked more or less same question though answers how did send commands printer. (i'll change question there according answers!) i accepted ken's answer, because claimed way transferred commands wasn't best , got work escape command. problem after t...
Read more

c++ - error: use of deleted function -

-
i've been working on c++ code friend has written , following error have never seen before when compiling gcc4.6: error: use of deleted function ‘gamefsm_<std::array<c, 2ul> >::hdealt::hdealt()’ implicitly deleted because default definition ill-formed: uninitialized non-static const member ‘const h_t floppokergamefsm_<std::array<c, 2ul> >::hdealt::h’ edit: comes part of code using boost msm: boost webpage edit2: there no = delete() used anywhere in sourcecode. generally speaking, error mean? should looking when type of error occurs? i don't think other answers mentioning =deleted; syntax correct. error message says default constructor has been deleted implicitly . says why: class contains non-static, const variable, not initialized default ctor. class x { const int x; }; since x::x const , must initialized -- default ctor wouldn't initialize (because it's pod type). therefore, default ctor, need define 1 (and must ...
Read more