> On Feb 5, 2017, at 12:09 PM, Aditya Mahajan <adit...@umich.edu> wrote: > > On Sun, 5 Feb 2017, Rogers, Michael K wrote: > >> Let's say I want a link to plot x+2 in Wolfram|Alpha. I need to catenate >> "http://www.wolframalpha.com/input/?i="; and "plot+x%2B2". Is there any way >> already available in ConTeXt to translate reserved characters like "+" to >> the percent-hexcode "%2B"? >> >> Something like >> >> \encode[plot x+2] >> >> would become >> >> plot+x%2B2 >> >> Or more generally, some languages have a query constructor like this >> >> \queryURI >> [http://www.wolframalpha.com/input] >> [i=plot x+2] >> >> which would construct the URI >> >> http://www.wolframalpha.com/input/?i=plot+x%2B2 >> >> I could write my own, of course. But no need to reinvent the wheel. > > url.escape does exactly that. > > \startluacode > local base="http://www.wolframalpha.com/input"; > local query="i=plot x+2" > local fullname = base .. query > print(url.escape(fullname)) > \stopluacode > > gives > > http%3A//www.wolframalpha.com/inputi%3Dplot%20x%2B2 > > Also look at l-url.lua for other helper functions for parsing and > escaping/unescaping urls. > > Aditya
Thanks! I figured there must be a function like that. Michael ________________________________ This e-mail message (including any attachments) is for the sole use of the intended recipient(s) and may contain confidential and privileged information. If the reader of this message is not the intended recipient, you are hereby notified that any dissemination, distribution or copying of this message (including any attachments) is strictly prohibited. If you have received this message in error, please contact the sender by reply e-mail message and destroy all copies of the original message (including attachments). ___________________________________________________________________________________ If your question is of interest to others as well, please add an entry to the Wiki! maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context webpage : http://www.pragma-ade.nl / http://context.aanhet.net archive : https://bitbucket.org/phg/context-mirror/commits/ wiki : http://contextgarden.net ___________________________________________________________________________________
