vcs.maemo.org Git - pkg-perl/blob - deb-src/liburi-perl/liburi-perl-1.35.dfsg.1/t/roytest4.html

   1 <HTML><HEAD>
   2 <TITLE>Examples of Resolving Relative URLs, Part 4</TITLE>
   3 <BASE href="fred:///s//a/b/c">
   4 </HEAD><BODY>
   5 <H1>Examples of Resolving Relative URLs, Part 4</H1>
   6
   7 This document has an embedded base URL of
   8 <PRE>
   9    Content-Base: fred:///s//a/b/c
  10 </PRE>
  11 in order to test a notion that Tim Berners-Lee mentioned regarding
  12 the ability of URIs to have a triple-slash (or even more slashes)
  13 to indicate higher levels of hierarchy than those already used by URLs.
  14
  15 <H2>Tested Clients and Client Libraries</H2>
  16
  17 <DL COMPACT>
  18 <DT>[R]
  19 <DD>RFC 2396 (the right way to parse)
  20 <DT>Tim
  21 <DD>Tim Berners-Lee's proposed interpretation
  22 <DT>[1]
  23 <DD>Mozilla/4.03 [en] (X11; U; SunOS 5.5 sun4u; Nav)
  24 <DT>[2]
  25 <DD>Lynx/2.7.1 libwww-FM/2.14
  26 <DT>[3]
  27 <DD>MSIE 3.01; Windows 95
  28 <DT>[4]
  29 <DD>NCSA_Mosaic/2.6 (X11;SunOS 4.1.2 sun4m)
  30 </DL>
  31
  32 <H3>Synopsis</H3>
  33
  34 RFC 1808 specified that the highest level for relative URLs is indicated
  35 by a double-slash "//", and therefore that any triple-slash would be
  36 considered a null site component, rather than a higher-level component
  37 than the site component (as proposed by Tim).<P>
  38
  39 The URI draft assumes that a triple-slash means an empty site component.
  40 Netscape Navigator behaves irrationally, apparently because their parser
  41 is scheme-dependent and therefore doesn't do the hierarchical parsing that
  42 would be expected.  Oddly, Lynx seems to straddle both sides.
  43
  44 <H2>Examples</H2>
  45 <PRE>
  46                   RESULTS                       from
  47
  48 <a href="g:h">g:h</a>            =  g:h                           [R,Tim,2,3]
  49                   fred:///s//a/b/g:h            [1]
  50
  51 <a href="g">g</a>              =  fred:///s//a/b/g              [R,Tim,1,2,3]
  52
  53 <a href="./g">./g</a>            =  fred:///s//a/b/g              [R,Tim,2,3]
  54                   fred:///s//a/b/./g            [1]
  55
  56 <a href="g/">g/</a>             =  fred:///s//a/b/g/             [R,Tim,1,2,3]
  57
  58 <a href="/g">/g</a>             =  fred:///g                     [R,1,2,3]
  59                   fred:///s//a/g                [Tim]
  60
  61 <a href="//g">//g</a>            =  fred://g                      [R,1,2,3]
  62                   fred:///s//g                  [Tim]
  63
  64 <a href="//g/x">//g/x</a>          =  fred://g/x                    [R,1,2,3]
  65                   fred:///s//g/x                [Tim]
  66
  67 <a href="///g">///g</a>           =  fred:///g                     [R,Tim,1,2,3]
  68
  69 <a href="./">./</a>             =  fred:///s//a/b/               [R,Tim,2,3]
  70                   fred:///s//a/b/./             [1]
  71
  72 <a href="../">../</a>            =  fred:///s//a/                 [R,Tim,2,3]
  73                   fred:///s//a/b/../            [1]
  74
  75 <a href="../g">../g</a>           =  fred:///s//a/g                [R,Tim,2,3]
  76                   fred:///s//a/b/../g           [1]
  77
  78 <a href="../../">../../</a>         =  fred:///s//                   [R]
  79                   fred:///s//a/../              [Tim,2]
  80                   fred:///s//a/b/../../         [1]
  81                   fred:///s//a/                 [3]
  82
  83 <a href="../../g">../../g</a>        =  fred:///s//g                  [R]
  84                   fred:///s//a/../g             [Tim,2]
  85                   fred:///s//a/b/../../g        [1]
  86                   fred:///s//a/g                [3]
  87
  88 <a href="../../../g">../../../g</a>     =  fred:///s/g                   [R]
  89                   fred:///s//a/../../g          [Tim,2]
  90                   fred:///s//a/b/../../../g     [1]
  91                   fred:///s//a/g                [3]
  92
  93 <a href="../../../../g">../../../../g</a>  =  fred:///g                     [R]
  94                   fred:///s//a/../../../g       [Tim,2]
  95                   fred:///s//a/b/../../../../g  [1]
  96                   fred:///s//a/g                [3]
  97 </PRE>
  98 </BODY></HTML>