Henrik Bengtsson
2003-Apr-28 20:06 UTC
[Rd] Webcuts - Navigating HTML help using only the keyboard
A while ago I put together a Javascript called Webcuts (GPL), which when included in an HTML document it will make it possible to navigate the page and follow links by just typing parts of the label of the links, i.e. no mouse is needed. I have, by using 'sed', added the script to every HTML help file generated by R as an example, cf. http://www.maths.lth.se/help/R/.R/doc/html/packages.html I find quite convenient since it make it possible to quickly access help files without having to scroll the browser window and without having to touch the mouse. Try for instance 0. Click on the above link. 1. Type "base" -> ENTER and then "ansi" -> ENTER. 2. Go back with "-" + ENTER or two steps back with "-2" + ENTER. 3. Go to the parent directory by typing ".." + ENTER. 4. Search google for "R" by typing "?R" + ENTER etc. 5. See help for all Webcuts features by typing "?" + ENTER. I've been able to test it on IE6 and Mozilla (also w/ "Find As You Type"), but it was written for NS4+ and IE4+ so it should work on some other browsers too. Some browser are also known for not supporting Webcuts. To include it on a webpage one just add the line <head> ... <script type="text/javascript" src="Webcuts.js" language="JavaScript1.2"></script> </head> Do you think it would be a useful add Webcuts to the HTML generating code in R? The natural location of Webcuts.js could be $R_HOME/doc/html/. If anyone dislikes Webcuts it could be disabled by replacing Webcuts.js with an empty file. For more details see http://www.maths.lth.se/tools/webcuts/. Cheers Henrik Bengtsson Dept. of Mathematical Statistics @ Centre for Mathematical Sciences Lund Institute of Technology/Lund University, Sweden (Sweden +2h UTC, Melbourne +10 UTC, Calif. -7h UTC) +46 708 909208 (cell), +46 46 320 820 (home), +1 (508) 464 6644 (global fax), +46 46 2229611 (off), +46 46 2224623 (dept. fax) h b @ m a t h s . l t h . s e, http://www.maths.lth.se/~hb/
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