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!ArcWeb/PublicHTML/Extensions
This website contains an archive of files for the Acorn Electron, BBC Micro, Acorn Archimedes, Commodore 16 and Commodore 64 computers, which Dominic Ford has rescued from his private collection of floppy disks and cassettes.
Some of these files were originally commercial releases in the 1980s and 1990s, but they are now widely available online. I assume that copyright over them is no longer being asserted. If you own the copyright and would like files to be removed, please contact me.
| Tape/disk: | Home » Personal collection » Acorn hard disk » apps » web |
| Filename: | !ArcWeb/PublicHTML/Extensions |
| Read OK: | ✔ |
| File size: | 08D1 bytes |
| Load address: | 0000 |
| Exec address: | 0000 |
Duplicates
There is 1 duplicate copy of this file in the archive:
- Personal collection » Acorn ADFS disks » Greaseweazled » adfs_1.6M_ArcWeb.adf » !ArcWeb/PublicHTML/Extensions
- Personal collection » Acorn hard disk » apps » web » !ArcWeb/PublicHTML/Extensions
File contents
<title>HTML Extensions</title> <body> <h1>ArcWeb's HTML Extensions</h1> ArcWeb contains a few HTML extensions to support the RISC OS environment. These include: <ul> <li>Inlined images may be virtually any type which ChangeFSI autorecognises, including RISC OS sprites (although not 'deep' sprites, yet) <li>Since RISC OS sprite areas may contain multiple sprites, I have extended the same principle used for documents, to images. Hence, something like <img src="myfile#myiconbar"> will retrieve the sprite called <em>myiconbar</em> from <em>myfile</em> which resides in the same directory as the document that contains it. Furthermore, omitting the filename will force a look up in the Wimp common sprite pool, so <img src="#switcher"> will get you the <img src="#switcher" alt="Task Manager">icon. <li>URLs may reference files on the local machine. These are recognised by the syntax: <tt>local://filing-system/file-from-$</tt>. The filing system includes the media specifier, so <em>ADFS::HardDisc4</em> is an example of a valid filing system. The rest of the filename is given from and including the root. Filing systems without media specifiers may be used by omitting that part of the FS name (see the example with <tt>resources:</tt> below. In the path name, all / and . characters are transposed to make it look more like a conventional URL. <li>local: URLs may point to applications, in which case following them will launch the application. eg. <a href="local://resources:/$/Apps/!Help"> will open an anchor which will <a href="local://resources:/$/Apps/!Help">launch Acorn's !Help</a> application. However, for your own protection, this will NOT happen unless the page containing the link to an application was also loaded from a local: page. <li>Some of the extensions proposed by <a href="netscapext">Netscape Communications Corp.</a> have had support added for them as well, including background images, colour changing, id attribute for any tag. <li>Some of the HTML 3.2 "Wilbur" extensions have been added, such as referencing certain colours by name. <li>ArcWeb has support for <tt>finger</tt> URLs as well. Even Netscape 2 doesn't have these yet! </ul> <hr> Stewart Brodie<br> 29 June 1996
00000000 3c 74 69 74 6c 65 3e 48 54 4d 4c 20 45 78 74 65 |<title>HTML Exte| 00000010 6e 73 69 6f 6e 73 3c 2f 74 69 74 6c 65 3e 0a 3c |nsions</title>.<| 00000020 62 6f 64 79 3e 0a 0a 3c 68 31 3e 41 72 63 57 65 |body>..<h1>ArcWe| 00000030 62 27 73 20 48 54 4d 4c 20 45 78 74 65 6e 73 69 |b's HTML Extensi| 00000040 6f 6e 73 3c 2f 68 31 3e 0a 0a 41 72 63 57 65 62 |ons</h1>..ArcWeb| 00000050 20 63 6f 6e 74 61 69 6e 73 20 61 20 66 65 77 20 | contains a few | 00000060 48 54 4d 4c 20 65 78 74 65 6e 73 69 6f 6e 73 20 |HTML extensions | 00000070 74 6f 20 73 75 70 70 6f 72 74 20 74 68 65 20 52 |to support the R| 00000080 49 53 43 20 4f 53 20 65 6e 76 69 72 6f 6e 6d 65 |ISC OS environme| 00000090 6e 74 2e 0a 54 68 65 73 65 20 69 6e 63 6c 75 64 |nt..These includ| 000000a0 65 3a 0a 3c 75 6c 3e 0a 0a 3c 6c 69 3e 49 6e 6c |e:.<ul>..<li>Inl| 000000b0 69 6e 65 64 20 69 6d 61 67 65 73 20 6d 61 79 20 |ined images may | 000000c0 62 65 20 76 69 72 74 75 61 6c 6c 79 20 61 6e 79 |be virtually any| 000000d0 20 74 79 70 65 20 77 68 69 63 68 20 43 68 61 6e | type which Chan| 000000e0 67 65 46 53 49 20 61 75 74 6f 72 65 63 6f 67 6e |geFSI autorecogn| 000000f0 69 73 65 73 2c 0a 69 6e 63 6c 75 64 69 6e 67 20 |ises,.including | 00000100 52 49 53 43 20 4f 53 20 73 70 72 69 74 65 73 20 |RISC OS sprites | 00000110 28 61 6c 74 68 6f 75 67 68 20 6e 6f 74 20 27 64 |(although not 'd| 00000120 65 65 70 27 20 73 70 72 69 74 65 73 2c 20 79 65 |eep' sprites, ye| 00000130 74 29 0a 0a 3c 6c 69 3e 53 69 6e 63 65 20 52 49 |t)..<li>Since RI| 00000140 53 43 20 4f 53 20 73 70 72 69 74 65 20 61 72 65 |SC OS sprite are| 00000150 61 73 20 6d 61 79 20 63 6f 6e 74 61 69 6e 20 6d |as may contain m| 00000160 75 6c 74 69 70 6c 65 20 73 70 72 69 74 65 73 2c |ultiple sprites,| 00000170 20 49 20 68 61 76 65 20 65 78 74 65 6e 64 65 64 | I have extended| 00000180 0a 74 68 65 20 73 61 6d 65 20 70 72 69 6e 63 69 |.the same princi| 00000190 70 6c 65 20 75 73 65 64 20 66 6f 72 20 64 6f 63 |ple used for doc| 000001a0 75 6d 65 6e 74 73 2c 20 74 6f 20 69 6d 61 67 65 |uments, to image| 000001b0 73 2e 20 20 48 65 6e 63 65 2c 20 73 6f 6d 65 74 |s. Hence, somet| 000001c0 68 69 6e 67 20 6c 69 6b 65 0a 26 6c 74 3b 69 6d |hing like.<im| 000001d0 67 20 73 72 63 3d 22 6d 79 66 69 6c 65 23 6d 79 |g src="myfile#my| 000001e0 69 63 6f 6e 62 61 72 22 26 67 74 3b 20 77 69 6c |iconbar"> wil| 000001f0 6c 20 72 65 74 72 69 65 76 65 20 74 68 65 20 73 |l retrieve the s| 00000200 70 72 69 74 65 20 63 61 6c 6c 65 64 0a 3c 65 6d |prite called.<em| 00000210 3e 6d 79 69 63 6f 6e 62 61 72 3c 2f 65 6d 3e 20 |>myiconbar</em> | 00000220 66 72 6f 6d 20 3c 65 6d 3e 6d 79 66 69 6c 65 3c |from <em>myfile<| 00000230 2f 65 6d 3e 20 77 68 69 63 68 20 72 65 73 69 64 |/em> which resid| 00000240 65 73 20 69 6e 20 74 68 65 20 73 61 6d 65 20 64 |es in the same d| 00000250 69 72 65 63 74 6f 72 79 0a 61 73 20 74 68 65 20 |irectory.as the | 00000260 64 6f 63 75 6d 65 6e 74 20 74 68 61 74 20 63 6f |document that co| 00000270 6e 74 61 69 6e 73 20 69 74 2e 20 20 46 75 72 74 |ntains it. Furt| 00000280 68 65 72 6d 6f 72 65 2c 20 6f 6d 69 74 74 69 6e |hermore, omittin| 00000290 67 20 74 68 65 20 66 69 6c 65 6e 61 6d 65 20 77 |g the filename w| 000002a0 69 6c 6c 0a 66 6f 72 63 65 20 61 20 6c 6f 6f 6b |ill.force a look| 000002b0 20 75 70 20 69 6e 20 74 68 65 20 57 69 6d 70 20 | up in the Wimp | 000002c0 63 6f 6d 6d 6f 6e 20 73 70 72 69 74 65 20 70 6f |common sprite po| 000002d0 6f 6c 2c 20 73 6f 20 26 6c 74 3b 69 6d 67 0a 73 |ol, so <img.s| 000002e0 72 63 3d 22 23 73 77 69 74 63 68 65 72 22 26 67 |rc="#switcher"&g| 000002f0 74 3b 20 77 69 6c 6c 20 67 65 74 20 79 6f 75 20 |t; will get you | 00000300 74 68 65 20 3c 69 6d 67 20 73 72 63 3d 22 23 73 |the <img src="#s| 00000310 77 69 74 63 68 65 72 22 20 61 6c 74 3d 22 54 61 |witcher" alt="Ta| 00000320 73 6b 0a 4d 61 6e 61 67 65 72 22 3e 69 63 6f 6e |sk.Manager">icon| 00000330 2e 0a 0a 3c 6c 69 3e 55 52 4c 73 20 6d 61 79 20 |...<li>URLs may | 00000340 72 65 66 65 72 65 6e 63 65 20 66 69 6c 65 73 20 |reference files | 00000350 6f 6e 20 74 68 65 20 6c 6f 63 61 6c 20 6d 61 63 |on the local mac| 00000360 68 69 6e 65 2e 20 20 54 68 65 73 65 20 61 72 65 |hine. These are| 00000370 20 72 65 63 6f 67 6e 69 73 65 64 20 62 79 0a 74 | recognised by.t| 00000380 68 65 20 73 79 6e 74 61 78 3a 20 20 3c 74 74 3e |he syntax: <tt>| 00000390 6c 6f 63 61 6c 3a 2f 2f 66 69 6c 69 6e 67 2d 73 |local://filing-s| 000003a0 79 73 74 65 6d 2f 66 69 6c 65 2d 66 72 6f 6d 2d |ystem/file-from-| 000003b0 24 3c 2f 74 74 3e 2e 20 20 54 68 65 20 66 69 6c |$</tt>. The fil| 000003c0 69 6e 67 20 73 79 73 74 65 6d 0a 69 6e 63 6c 75 |ing system.inclu| 000003d0 64 65 73 20 74 68 65 20 6d 65 64 69 61 20 73 70 |des the media sp| 000003e0 65 63 69 66 69 65 72 2c 20 73 6f 20 3c 65 6d 3e |ecifier, so <em>| 000003f0 41 44 46 53 3a 3a 48 61 72 64 44 69 73 63 34 3c |ADFS::HardDisc4<| 00000400 2f 65 6d 3e 20 69 73 20 61 6e 20 65 78 61 6d 70 |/em> is an examp| 00000410 6c 65 20 6f 66 20 61 0a 76 61 6c 69 64 20 66 69 |le of a.valid fi| 00000420 6c 69 6e 67 20 73 79 73 74 65 6d 2e 20 20 54 68 |ling system. Th| 00000430 65 20 72 65 73 74 20 6f 66 20 74 68 65 20 66 69 |e rest of the fi| 00000440 6c 65 6e 61 6d 65 20 69 73 20 67 69 76 65 6e 20 |lename is given | 00000450 66 72 6f 6d 20 61 6e 64 20 69 6e 63 6c 75 64 69 |from and includi| 00000460 6e 67 0a 74 68 65 20 72 6f 6f 74 2e 20 20 46 69 |ng.the root. Fi| 00000470 6c 69 6e 67 20 73 79 73 74 65 6d 73 20 77 69 74 |ling systems wit| 00000480 68 6f 75 74 20 6d 65 64 69 61 20 73 70 65 63 69 |hout media speci| 00000490 66 69 65 72 73 20 6d 61 79 20 62 65 20 75 73 65 |fiers may be use| 000004a0 64 20 62 79 20 6f 6d 69 74 74 69 6e 67 0a 74 68 |d by omitting.th| 000004b0 61 74 20 70 61 72 74 20 6f 66 20 74 68 65 20 46 |at part of the F| 000004c0 53 20 6e 61 6d 65 20 28 73 65 65 20 74 68 65 20 |S name (see the | 000004d0 65 78 61 6d 70 6c 65 20 77 69 74 68 20 3c 74 74 |example with <tt| 000004e0 3e 72 65 73 6f 75 72 63 65 73 3a 3c 2f 74 74 3e |>resources:</tt>| 000004f0 20 62 65 6c 6f 77 2e 20 20 49 6e 0a 74 68 65 20 | below. In.the | 00000500 70 61 74 68 20 6e 61 6d 65 2c 20 61 6c 6c 20 2f |path name, all /| 00000510 20 61 6e 64 20 2e 20 63 68 61 72 61 63 74 65 72 | and . character| 00000520 73 20 61 72 65 20 74 72 61 6e 73 70 6f 73 65 64 |s are transposed| 00000530 20 74 6f 20 6d 61 6b 65 20 69 74 20 6c 6f 6f 6b | to make it look| 00000540 20 6d 6f 72 65 0a 6c 69 6b 65 20 61 20 63 6f 6e | more.like a con| 00000550 76 65 6e 74 69 6f 6e 61 6c 20 55 52 4c 2e 0a 0a |ventional URL...| 00000560 3c 6c 69 3e 6c 6f 63 61 6c 3a 20 55 52 4c 73 20 |<li>local: URLs | 00000570 6d 61 79 20 70 6f 69 6e 74 20 74 6f 20 61 70 70 |may point to app| 00000580 6c 69 63 61 74 69 6f 6e 73 2c 20 69 6e 20 77 68 |lications, in wh| 00000590 69 63 68 20 63 61 73 65 20 66 6f 6c 6c 6f 77 69 |ich case followi| 000005a0 6e 67 20 74 68 65 6d 20 77 69 6c 6c 0a 6c 61 75 |ng them will.lau| 000005b0 6e 63 68 20 74 68 65 20 61 70 70 6c 69 63 61 74 |nch the applicat| 000005c0 69 6f 6e 2e 20 20 65 67 2e 20 26 6c 74 3b 61 20 |ion. eg. <a | 000005d0 68 72 65 66 3d 22 6c 6f 63 61 6c 3a 2f 2f 72 65 |href="local://re| 000005e0 73 6f 75 72 63 65 73 3a 2f 24 2f 41 70 70 73 2f |sources:/$/Apps/| 000005f0 21 48 65 6c 70 22 26 67 74 3b 0a 77 69 6c 6c 20 |!Help">.will | 00000600 6f 70 65 6e 20 61 6e 20 61 6e 63 68 6f 72 20 77 |open an anchor w| 00000610 68 69 63 68 20 77 69 6c 6c 20 3c 61 0a 68 72 65 |hich will <a.hre| 00000620 66 3d 22 6c 6f 63 61 6c 3a 2f 2f 72 65 73 6f 75 |f="local://resou| 00000630 72 63 65 73 3a 2f 24 2f 41 70 70 73 2f 21 48 65 |rces:/$/Apps/!He| 00000640 6c 70 22 3e 6c 61 75 6e 63 68 20 41 63 6f 72 6e |lp">launch Acorn| 00000650 27 73 20 21 48 65 6c 70 3c 2f 61 3e 20 61 70 70 |'s !Help</a> app| 00000660 6c 69 63 61 74 69 6f 6e 2e 0a 48 6f 77 65 76 65 |lication..Howeve| 00000670 72 2c 20 66 6f 72 20 79 6f 75 72 20 6f 77 6e 20 |r, for your own | 00000680 70 72 6f 74 65 63 74 69 6f 6e 2c 20 74 68 69 73 |protection, this| 00000690 20 77 69 6c 6c 20 4e 4f 54 20 68 61 70 70 65 6e | will NOT happen| 000006a0 20 75 6e 6c 65 73 73 20 74 68 65 20 70 61 67 65 | unless the page| 000006b0 0a 63 6f 6e 74 61 69 6e 69 6e 67 20 74 68 65 20 |.containing the | 000006c0 6c 69 6e 6b 20 74 6f 20 61 6e 20 61 70 70 6c 69 |link to an appli| 000006d0 63 61 74 69 6f 6e 20 77 61 73 20 61 6c 73 6f 20 |cation was also | 000006e0 6c 6f 61 64 65 64 20 66 72 6f 6d 20 61 20 6c 6f |loaded from a lo| 000006f0 63 61 6c 3a 20 70 61 67 65 2e 0a 0a 3c 6c 69 3e |cal: page...<li>| 00000700 53 6f 6d 65 20 6f 66 20 74 68 65 20 65 78 74 65 |Some of the exte| 00000710 6e 73 69 6f 6e 73 20 70 72 6f 70 6f 73 65 64 20 |nsions proposed | 00000720 62 79 20 3c 61 20 68 72 65 66 3d 22 6e 65 74 73 |by <a href="nets| 00000730 63 61 70 65 78 74 22 3e 4e 65 74 73 63 61 70 65 |capext">Netscape| 00000740 0a 43 6f 6d 6d 75 6e 69 63 61 74 69 6f 6e 73 20 |.Communications | 00000750 43 6f 72 70 2e 3c 2f 61 3e 20 68 61 76 65 20 68 |Corp.</a> have h| 00000760 61 64 20 73 75 70 70 6f 72 74 20 61 64 64 65 64 |ad support added| 00000770 20 66 6f 72 20 74 68 65 6d 20 61 73 20 77 65 6c | for them as wel| 00000780 6c 2c 20 69 6e 63 6c 75 64 69 6e 67 0a 62 61 63 |l, including.bac| 00000790 6b 67 72 6f 75 6e 64 20 69 6d 61 67 65 73 2c 20 |kground images, | 000007a0 63 6f 6c 6f 75 72 20 63 68 61 6e 67 69 6e 67 2c |colour changing,| 000007b0 20 69 64 20 61 74 74 72 69 62 75 74 65 20 66 6f | id attribute fo| 000007c0 72 20 61 6e 79 20 74 61 67 2e 0a 0a 3c 6c 69 3e |r any tag...<li>| 000007d0 53 6f 6d 65 20 6f 66 20 74 68 65 20 48 54 4d 4c |Some of the HTML| 000007e0 20 33 2e 32 20 26 71 75 6f 74 3b 57 69 6c 62 75 | 3.2 "Wilbu| 000007f0 72 26 71 75 6f 74 3b 20 65 78 74 65 6e 73 69 6f |r" extensio| 00000800 6e 73 20 68 61 76 65 20 62 65 65 6e 20 61 64 64 |ns have been add| 00000810 65 64 2c 0a 73 75 63 68 20 61 73 20 72 65 66 65 |ed,.such as refe| 00000820 72 65 6e 63 69 6e 67 20 63 65 72 74 61 69 6e 20 |rencing certain | 00000830 63 6f 6c 6f 75 72 73 20 62 79 20 6e 61 6d 65 2e |colours by name.| 00000840 0a 0a 3c 6c 69 3e 41 72 63 57 65 62 20 68 61 73 |..<li>ArcWeb has| 00000850 20 73 75 70 70 6f 72 74 20 66 6f 72 20 3c 74 74 | support for <tt| 00000860 3e 66 69 6e 67 65 72 3c 2f 74 74 3e 20 55 52 4c |>finger</tt> URL| 00000870 73 20 61 73 20 77 65 6c 6c 2e 20 20 45 76 65 6e |s as well. Even| 00000880 20 4e 65 74 73 63 61 70 65 0a 32 20 64 6f 65 73 | Netscape.2 does| 00000890 6e 27 74 20 68 61 76 65 20 74 68 65 73 65 20 79 |n't have these y| 000008a0 65 74 21 0a 0a 3c 2f 75 6c 3e 0a 0a 3c 68 72 3e |et!..</ul>..<hr>| 000008b0 0a 53 74 65 77 61 72 74 20 42 72 6f 64 69 65 3c |.Stewart Brodie<| 000008c0 62 72 3e 0a 32 39 20 4a 75 6e 65 20 31 39 39 36 |br>.29 June 1996| 000008d0 0a |.| 000008d1
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